LCOV - code coverage report
Current view: top level - fftools - ffmpeg.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 1919 2718 70.6 %
Date: 2018-04-21 10:11:13 Functions: 71 84 84.5 %

          Line data    Source code
       1             : /*
       2             :  * Copyright (c) 2000-2003 Fabrice Bellard
       3             :  *
       4             :  * This file is part of FFmpeg.
       5             :  *
       6             :  * FFmpeg is free software; you can redistribute it and/or
       7             :  * modify it under the terms of the GNU Lesser General Public
       8             :  * License as published by the Free Software Foundation; either
       9             :  * version 2.1 of the License, or (at your option) any later version.
      10             :  *
      11             :  * FFmpeg is distributed in the hope that it will be useful,
      12             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      13             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14             :  * Lesser General Public License for more details.
      15             :  *
      16             :  * You should have received a copy of the GNU Lesser General Public
      17             :  * License along with FFmpeg; if not, write to the Free Software
      18             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      19             :  */
      20             : 
      21             : /**
      22             :  * @file
      23             :  * multimedia converter based on the FFmpeg libraries
      24             :  */
      25             : 
      26             : #include "config.h"
      27             : #include <ctype.h>
      28             : #include <string.h>
      29             : #include <math.h>
      30             : #include <stdlib.h>
      31             : #include <errno.h>
      32             : #include <limits.h>
      33             : #include <stdatomic.h>
      34             : #include <stdint.h>
      35             : 
      36             : #if HAVE_IO_H
      37             : #include <io.h>
      38             : #endif
      39             : #if HAVE_UNISTD_H
      40             : #include <unistd.h>
      41             : #endif
      42             : 
      43             : #include "libavformat/avformat.h"
      44             : #include "libavdevice/avdevice.h"
      45             : #include "libswresample/swresample.h"
      46             : #include "libavutil/opt.h"
      47             : #include "libavutil/channel_layout.h"
      48             : #include "libavutil/parseutils.h"
      49             : #include "libavutil/samplefmt.h"
      50             : #include "libavutil/fifo.h"
      51             : #include "libavutil/hwcontext.h"
      52             : #include "libavutil/internal.h"
      53             : #include "libavutil/intreadwrite.h"
      54             : #include "libavutil/dict.h"
      55             : #include "libavutil/display.h"
      56             : #include "libavutil/mathematics.h"
      57             : #include "libavutil/pixdesc.h"
      58             : #include "libavutil/avstring.h"
      59             : #include "libavutil/libm.h"
      60             : #include "libavutil/imgutils.h"
      61             : #include "libavutil/timestamp.h"
      62             : #include "libavutil/bprint.h"
      63             : #include "libavutil/time.h"
      64             : #include "libavutil/thread.h"
      65             : #include "libavutil/threadmessage.h"
      66             : #include "libavcodec/mathops.h"
      67             : #include "libavformat/os_support.h"
      68             : 
      69             : # include "libavfilter/avfilter.h"
      70             : # include "libavfilter/buffersrc.h"
      71             : # include "libavfilter/buffersink.h"
      72             : 
      73             : #if HAVE_SYS_RESOURCE_H
      74             : #include <sys/time.h>
      75             : #include <sys/types.h>
      76             : #include <sys/resource.h>
      77             : #elif HAVE_GETPROCESSTIMES
      78             : #include <windows.h>
      79             : #endif
      80             : #if HAVE_GETPROCESSMEMORYINFO
      81             : #include <windows.h>
      82             : #include <psapi.h>
      83             : #endif
      84             : #if HAVE_SETCONSOLECTRLHANDLER
      85             : #include <windows.h>
      86             : #endif
      87             : 
      88             : 
      89             : #if HAVE_SYS_SELECT_H
      90             : #include <sys/select.h>
      91             : #endif
      92             : 
      93             : #if HAVE_TERMIOS_H
      94             : #include <fcntl.h>
      95             : #include <sys/ioctl.h>
      96             : #include <sys/time.h>
      97             : #include <termios.h>
      98             : #elif HAVE_KBHIT
      99             : #include <conio.h>
     100             : #endif
     101             : 
     102             : #include <time.h>
     103             : 
     104             : #include "ffmpeg.h"
     105             : #include "cmdutils.h"
     106             : 
     107             : #include "libavutil/avassert.h"
     108             : 
     109             : const char program_name[] = "ffmpeg";
     110             : const int program_birth_year = 2000;
     111             : 
     112             : static FILE *vstats_file;
     113             : 
     114             : const char *const forced_keyframes_const_names[] = {
     115             :     "n",
     116             :     "n_forced",
     117             :     "prev_forced_n",
     118             :     "prev_forced_t",
     119             :     "t",
     120             :     NULL
     121             : };
     122             : 
     123             : static void do_video_stats(OutputStream *ost, int frame_size);
     124             : static int64_t getutime(void);
     125             : static int64_t getmaxrss(void);
     126             : static int ifilter_has_all_input_formats(FilterGraph *fg);
     127             : 
     128             : static int run_as_daemon  = 0;
     129             : static int nb_frames_dup = 0;
     130             : static unsigned dup_warning = 1000;
     131             : static int nb_frames_drop = 0;
     132             : static int64_t decode_error_stat[2];
     133             : 
     134             : static int want_sdp = 1;
     135             : 
     136             : static int current_time;
     137             : AVIOContext *progress_avio = NULL;
     138             : 
     139             : static uint8_t *subtitle_out;
     140             : 
     141             : InputStream **input_streams = NULL;
     142             : int        nb_input_streams = 0;
     143             : InputFile   **input_files   = NULL;
     144             : int        nb_input_files   = 0;
     145             : 
     146             : OutputStream **output_streams = NULL;
     147             : int         nb_output_streams = 0;
     148             : OutputFile   **output_files   = NULL;
     149             : int         nb_output_files   = 0;
     150             : 
     151             : FilterGraph **filtergraphs;
     152             : int        nb_filtergraphs;
     153             : 
     154             : #if HAVE_TERMIOS_H
     155             : 
     156             : /* init terminal so that we can grab keys */
     157             : static struct termios oldtty;
     158             : static int restore_tty;
     159             : #endif
     160             : 
     161             : #if HAVE_THREADS
     162             : static void free_input_threads(void);
     163             : #endif
     164             : 
     165             : /* sub2video hack:
     166             :    Convert subtitles to video with alpha to insert them in filter graphs.
     167             :    This is a temporary solution until libavfilter gets real subtitles support.
     168             :  */
     169             : 
     170          90 : static int sub2video_get_blank_frame(InputStream *ist)
     171             : {
     172             :     int ret;
     173          90 :     AVFrame *frame = ist->sub2video.frame;
     174             : 
     175          90 :     av_frame_unref(frame);
     176          90 :     ist->sub2video.frame->width  = ist->dec_ctx->width  ? ist->dec_ctx->width  : ist->sub2video.w;
     177          90 :     ist->sub2video.frame->height = ist->dec_ctx->height ? ist->dec_ctx->height : ist->sub2video.h;
     178          90 :     ist->sub2video.frame->format = AV_PIX_FMT_RGB32;
     179          90 :     if ((ret = av_frame_get_buffer(frame, 32)) < 0)
     180           0 :         return ret;
     181          90 :     memset(frame->data[0], 0, frame->height * frame->linesize[0]);
     182          90 :     return 0;
     183             : }
     184             : 
     185          44 : static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h,
     186             :                                 AVSubtitleRect *r)
     187             : {
     188             :     uint32_t *pal, *dst2;
     189             :     uint8_t *src, *src2;
     190             :     int x, y;
     191             : 
     192          44 :     if (r->type != SUBTITLE_BITMAP) {
     193           0 :         av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n");
     194           0 :         return;
     195             :     }
     196          44 :     if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) {
     197           0 :         av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle (%d %d %d %d) overflowing %d %d\n",
     198             :             r->x, r->y, r->w, r->h, w, h
     199             :         );
     200           0 :         return;
     201             :     }
     202             : 
     203          44 :     dst += r->y * dst_linesize + r->x * 4;
     204          44 :     src = r->data[0];
     205          44 :     pal = (uint32_t *)r->data[1];
     206        1642 :     for (y = 0; y < r->h; y++) {
     207        1598 :         dst2 = (uint32_t *)dst;
     208        1598 :         src2 = src;
     209      480325 :         for (x = 0; x < r->w; x++)
     210      478727 :             *(dst2++) = pal[*(src2++)];
     211        1598 :         dst += dst_linesize;
     212        1598 :         src += r->linesize[0];
     213             :     }
     214             : }
     215             : 
     216         335 : static void sub2video_push_ref(InputStream *ist, int64_t pts)
     217             : {
     218         335 :     AVFrame *frame = ist->sub2video.frame;
     219             :     int i;
     220             :     int ret;
     221             : 
     222             :     av_assert1(frame->data[0]);
     223         335 :     ist->sub2video.last_pts = frame->pts = pts;
     224         670 :     for (i = 0; i < ist->nb_filters; i++) {
     225         335 :         ret = av_buffersrc_add_frame_flags(ist->filters[i]->filter, frame,
     226             :                                            AV_BUFFERSRC_FLAG_KEEP_REF |
     227             :                                            AV_BUFFERSRC_FLAG_PUSH);
     228         335 :         if (ret != AVERROR_EOF && ret < 0)
     229           0 :             av_log(NULL, AV_LOG_WARNING, "Error while add the frame to buffer source(%s).\n",
     230           0 :                    av_err2str(ret));
     231             :     }
     232         335 : }
     233             : 
     234         119 : void sub2video_update(InputStream *ist, AVSubtitle *sub)
     235             : {
     236         119 :     AVFrame *frame = ist->sub2video.frame;
     237             :     int8_t *dst;
     238             :     int     dst_linesize;
     239             :     int num_rects, i;
     240             :     int64_t pts, end_pts;
     241             : 
     242         119 :     if (!frame)
     243          29 :         return;
     244          90 :     if (sub) {
     245          44 :         pts       = av_rescale_q(sub->pts + sub->start_display_time * 1000LL,
     246          44 :                                  AV_TIME_BASE_Q, ist->st->time_base);
     247          44 :         end_pts   = av_rescale_q(sub->pts + sub->end_display_time   * 1000LL,
     248          44 :                                  AV_TIME_BASE_Q, ist->st->time_base);
     249          44 :         num_rects = sub->num_rects;
     250             :     } else {
     251          46 :         pts       = ist->sub2video.end_pts;
     252          46 :         end_pts   = INT64_MAX;
     253          46 :         num_rects = 0;
     254             :     }
     255          90 :     if (sub2video_get_blank_frame(ist) < 0) {
     256           0 :         av_log(ist->dec_ctx, AV_LOG_ERROR,
     257             :                "Impossible to get a blank canvas.\n");
     258           0 :         return;
     259             :     }
     260          90 :     dst          = frame->data    [0];
     261          90 :     dst_linesize = frame->linesize[0];
     262         134 :     for (i = 0; i < num_rects; i++)
     263          44 :         sub2video_copy_rect(dst, dst_linesize, frame->width, frame->height, sub->rects[i]);
     264          90 :     sub2video_push_ref(ist, pts);
     265          90 :     ist->sub2video.end_pts = end_pts;
     266             : }
     267             : 
     268      388961 : static void sub2video_heartbeat(InputStream *ist, int64_t pts)
     269             : {
     270      388961 :     InputFile *infile = input_files[ist->file_index];
     271             :     int i, j, nb_reqs;
     272             :     int64_t pts2;
     273             : 
     274             :     /* When a frame is read from a file, examine all sub2video streams in
     275             :        the same file and send the sub2video frame again. Otherwise, decoded
     276             :        video frames could be accumulating in the filter graph while a filter
     277             :        (possibly overlay) is desperately waiting for a subtitle frame. */
     278      816494 :     for (i = 0; i < infile->nb_streams; i++) {
     279      427533 :         InputStream *ist2 = input_streams[infile->ist_index + i];
     280      427533 :         if (!ist2->sub2video.frame)
     281      426644 :             continue;
     282             :         /* subtitles seem to be usually muxed ahead of other streams;
     283             :            if not, subtracting a larger time here is necessary */
     284         889 :         pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
     285             :         /* do not send the heartbeat frame if the subtitle is already ahead */
     286         889 :         if (pts2 <= ist2->sub2video.last_pts)
     287           0 :             continue;
     288        1734 :         if (pts2 >= ist2->sub2video.end_pts ||
     289         845 :             (!ist2->sub2video.frame->data[0] && ist2->sub2video.end_pts < INT64_MAX))
     290          44 :             sub2video_update(ist2, NULL);
     291        1778 :         for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
     292         889 :             nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
     293         889 :         if (nb_reqs)
     294         245 :             sub2video_push_ref(ist2, pts2);
     295             :     }
     296      388961 : }
     297             : 
     298          31 : static void sub2video_flush(InputStream *ist)
     299             : {
     300             :     int i;
     301             :     int ret;
     302             : 
     303          31 :     if (ist->sub2video.end_pts < INT64_MAX)
     304          31 :         sub2video_update(ist, NULL);
     305          33 :     for (i = 0; i < ist->nb_filters; i++) {
     306           2 :         ret = av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
     307           2 :         if (ret != AVERROR_EOF && ret < 0)
     308           0 :             av_log(NULL, AV_LOG_WARNING, "Flush the frame error.\n");
     309             :     }
     310          31 : }
     311             : 
     312             : /* end of sub2video hack */
     313             : 
     314       11151 : static void term_exit_sigsafe(void)
     315             : {
     316             : #if HAVE_TERMIOS_H
     317       11151 :     if(restore_tty)
     318           6 :         tcsetattr (0, TCSANOW, &oldtty);
     319             : #endif
     320       11151 : }
     321             : 
     322       11151 : void term_exit(void)
     323             : {
     324       11151 :     av_log(NULL, AV_LOG_QUIET, "%s", "");
     325       11151 :     term_exit_sigsafe();
     326       11151 : }
     327             : 
     328             : static volatile int received_sigterm = 0;
     329             : static volatile int received_nb_signals = 0;
     330             : static atomic_int transcode_init_done = ATOMIC_VAR_INIT(0);
     331             : static volatile int ffmpeg_exited = 0;
     332             : static int main_return_code = 0;
     333             : 
     334             : static void
     335           0 : sigterm_handler(int sig)
     336             : {
     337             :     int ret;
     338           0 :     received_sigterm = sig;
     339           0 :     received_nb_signals++;
     340           0 :     term_exit_sigsafe();
     341           0 :     if(received_nb_signals > 3) {
     342           0 :         ret = write(2/*STDERR_FILENO*/, "Received > 3 system signals, hard exiting\n",
     343             :                     strlen("Received > 3 system signals, hard exiting\n"));
     344             :         if (ret < 0) { /* Do nothing */ };
     345           0 :         exit(123);
     346             :     }
     347           0 : }
     348             : 
     349             : #if HAVE_SETCONSOLECTRLHANDLER
     350             : static BOOL WINAPI CtrlHandler(DWORD fdwCtrlType)
     351             : {
     352             :     av_log(NULL, AV_LOG_DEBUG, "\nReceived windows signal %ld\n", fdwCtrlType);
     353             : 
     354             :     switch (fdwCtrlType)
     355             :     {
     356             :     case CTRL_C_EVENT:
     357             :     case CTRL_BREAK_EVENT:
     358             :         sigterm_handler(SIGINT);
     359             :         return TRUE;
     360             : 
     361             :     case CTRL_CLOSE_EVENT:
     362             :     case CTRL_LOGOFF_EVENT:
     363             :     case CTRL_SHUTDOWN_EVENT:
     364             :         sigterm_handler(SIGTERM);
     365             :         /* Basically, with these 3 events, when we return from this method the
     366             :            process is hard terminated, so stall as long as we need to
     367             :            to try and let the main thread(s) clean up and gracefully terminate
     368             :            (we have at most 5 seconds, but should be done far before that). */
     369             :         while (!ffmpeg_exited) {
     370             :             Sleep(0);
     371             :         }
     372             :         return TRUE;
     373             : 
     374             :     default:
     375             :         av_log(NULL, AV_LOG_ERROR, "Received unknown windows signal %ld\n", fdwCtrlType);
     376             :         return FALSE;
     377             :     }
     378             : }
     379             : #endif
     380             : 
     381        5575 : void term_init(void)
     382             : {
     383             : #if HAVE_TERMIOS_H
     384        5575 :     if (!run_as_daemon && stdin_interaction) {
     385             :         struct termios tty;
     386          15 :         if (tcgetattr (0, &tty) == 0) {
     387           3 :             oldtty = tty;
     388           3 :             restore_tty = 1;
     389             : 
     390           3 :             tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
     391             :                              |INLCR|IGNCR|ICRNL|IXON);
     392           3 :             tty.c_oflag |= OPOST;
     393           3 :             tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
     394           3 :             tty.c_cflag &= ~(CSIZE|PARENB);
     395           3 :             tty.c_cflag |= CS8;
     396           3 :             tty.c_cc[VMIN] = 1;
     397           3 :             tty.c_cc[VTIME] = 0;
     398             : 
     399           3 :             tcsetattr (0, TCSANOW, &tty);
     400             :         }
     401          15 :         signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
     402             :     }
     403             : #endif
     404             : 
     405        5575 :     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).    */
     406        5575 :     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
     407             : #ifdef SIGXCPU
     408        5575 :     signal(SIGXCPU, sigterm_handler);
     409             : #endif
     410             : #ifdef SIGPIPE
     411        5575 :     signal(SIGPIPE, SIG_IGN); /* Broken pipe (POSIX). */
     412             : #endif
     413             : #if HAVE_SETCONSOLECTRLHANDLER
     414             :     SetConsoleCtrlHandler((PHANDLER_ROUTINE) CtrlHandler, TRUE);
     415             : #endif
     416        5575 : }
     417             : 
     418             : /* read a key without blocking */
     419          40 : static int read_key(void)
     420             : {
     421             :     unsigned char ch;
     422             : #if HAVE_TERMIOS_H
     423          40 :     int n = 1;
     424             :     struct timeval tv;
     425             :     fd_set rfds;
     426             : 
     427          40 :     FD_ZERO(&rfds);
     428          40 :     FD_SET(0, &rfds);
     429          40 :     tv.tv_sec = 0;
     430          40 :     tv.tv_usec = 0;
     431          40 :     n = select(1, &rfds, NULL, NULL, &tv);
     432          40 :     if (n > 0) {
     433          36 :         n = read(0, &ch, 1);
     434          36 :         if (n == 1)
     435           0 :             return ch;
     436             : 
     437          36 :         return n;
     438             :     }
     439             : #elif HAVE_KBHIT
     440             : #    if HAVE_PEEKNAMEDPIPE
     441             :     static int is_pipe;
     442             :     static HANDLE input_handle;
     443             :     DWORD dw, nchars;
     444             :     if(!input_handle){
     445             :         input_handle = GetStdHandle(STD_INPUT_HANDLE);
     446             :         is_pipe = !GetConsoleMode(input_handle, &dw);
     447             :     }
     448             : 
     449             :     if (is_pipe) {
     450             :         /* When running under a GUI, you will end here. */
     451             :         if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL)) {
     452             :             // input pipe may have been closed by the program that ran ffmpeg
     453             :             return -1;
     454             :         }
     455             :         //Read it
     456             :         if(nchars != 0) {
     457             :             read(0, &ch, 1);
     458             :             return ch;
     459             :         }else{
     460             :             return -1;
     461             :         }
     462             :     }
     463             : #    endif
     464             :     if(kbhit())
     465             :         return(getch());
     466             : #endif
     467           4 :     return -1;
     468             : }
     469             : 
     470      560015 : static int decode_interrupt_cb(void *ctx)
     471             : {
     472      560015 :     return received_nb_signals > atomic_load(&transcode_init_done);
     473             : }
     474             : 
     475             : const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
     476             : 
     477        5576 : static void ffmpeg_cleanup(int ret)
     478             : {
     479             :     int i, j;
     480             : 
     481        5576 :     if (do_benchmark) {
     482           0 :         int maxrss = getmaxrss() / 1024;
     483           0 :         av_log(NULL, AV_LOG_INFO, "bench: maxrss=%ikB\n", maxrss);
     484             :     }
     485             : 
     486       11023 :     for (i = 0; i < nb_filtergraphs; i++) {
     487        5447 :         FilterGraph *fg = filtergraphs[i];
     488        5447 :         avfilter_graph_free(&fg->graph);
     489       10881 :         for (j = 0; j < fg->nb_inputs; j++) {
     490       10868 :             while (av_fifo_size(fg->inputs[j]->frame_queue)) {
     491             :                 AVFrame *frame;
     492           0 :                 av_fifo_generic_read(fg->inputs[j]->frame_queue, &frame,
     493             :                                      sizeof(frame), NULL);
     494           0 :                 av_frame_free(&frame);
     495             :             }
     496        5434 :             av_fifo_freep(&fg->inputs[j]->frame_queue);
     497        5434 :             if (fg->inputs[j]->ist->sub2video.sub_queue) {
     498           0 :                 while (av_fifo_size(fg->inputs[j]->ist->sub2video.sub_queue)) {
     499             :                     AVSubtitle sub;
     500           0 :                     av_fifo_generic_read(fg->inputs[j]->ist->sub2video.sub_queue,
     501             :                                          &sub, sizeof(sub), NULL);
     502           0 :                     avsubtitle_free(&sub);
     503             :                 }
     504           0 :                 av_fifo_freep(&fg->inputs[j]->ist->sub2video.sub_queue);
     505             :             }
     506        5434 :             av_buffer_unref(&fg->inputs[j]->hw_frames_ctx);
     507        5434 :             av_freep(&fg->inputs[j]->name);
     508        5434 :             av_freep(&fg->inputs[j]);
     509             :         }
     510        5447 :         av_freep(&fg->inputs);
     511       10896 :         for (j = 0; j < fg->nb_outputs; j++) {
     512        5449 :             av_freep(&fg->outputs[j]->name);
     513        5449 :             av_freep(&fg->outputs[j]->formats);
     514        5449 :             av_freep(&fg->outputs[j]->channel_layouts);
     515        5449 :             av_freep(&fg->outputs[j]->sample_rates);
     516        5449 :             av_freep(&fg->outputs[j]);
     517             :         }
     518        5447 :         av_freep(&fg->outputs);
     519        5447 :         av_freep(&fg->graph_desc);
     520             : 
     521        5447 :         av_freep(&filtergraphs[i]);
     522             :     }
     523        5576 :     av_freep(&filtergraphs);
     524             : 
     525        5576 :     av_freep(&subtitle_out);
     526             : 
     527             :     /* close files */
     528       11152 :     for (i = 0; i < nb_output_files; i++) {
     529        5576 :         OutputFile *of = output_files[i];
     530             :         AVFormatContext *s;
     531        5576 :         if (!of)
     532           0 :             continue;
     533        5576 :         s = of->ctx;
     534        5576 :         if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE))
     535        5531 :             avio_closep(&s->pb);
     536        5576 :         avformat_free_context(s);
     537        5576 :         av_dict_free(&of->opts);
     538             : 
     539        5576 :         av_freep(&output_files[i]);
     540             :     }
     541       11290 :     for (i = 0; i < nb_output_streams; i++) {
     542        5714 :         OutputStream *ost = output_streams[i];
     543             : 
     544        5714 :         if (!ost)
     545           0 :             continue;
     546             : 
     547        5765 :         for (j = 0; j < ost->nb_bitstream_filters; j++)
     548          51 :             av_bsf_free(&ost->bsf_ctx[j]);
     549        5714 :         av_freep(&ost->bsf_ctx);
     550             : 
     551        5714 :         av_frame_free(&ost->filtered_frame);
     552        5714 :         av_frame_free(&ost->last_frame);
     553        5714 :         av_dict_free(&ost->encoder_opts);
     554             : 
     555        5714 :         av_freep(&ost->forced_keyframes);
     556        5714 :         av_expr_free(ost->forced_keyframes_pexpr);
     557        5714 :         av_freep(&ost->avfilter);
     558        5714 :         av_freep(&ost->logfile_prefix);
     559             : 
     560        5714 :         av_freep(&ost->audio_channels_map);
     561        5714 :         ost->audio_channels_mapped = 0;
     562             : 
     563        5714 :         av_dict_free(&ost->sws_dict);
     564             : 
     565        5714 :         avcodec_free_context(&ost->enc_ctx);
     566        5714 :         avcodec_parameters_free(&ost->ref_par);
     567             : 
     568        5714 :         if (ost->muxing_queue) {
     569       11428 :             while (av_fifo_size(ost->muxing_queue)) {
     570             :                 AVPacket pkt;
     571           0 :                 av_fifo_generic_read(ost->muxing_queue, &pkt, sizeof(pkt), NULL);
     572           0 :                 av_packet_unref(&pkt);
     573             :             }
     574        5714 :             av_fifo_freep(&ost->muxing_queue);
     575             :         }
     576             : 
     577        5714 :         av_freep(&output_streams[i]);
     578             :     }
     579             : #if HAVE_THREADS
     580        5576 :     free_input_threads();
     581             : #endif
     582       11186 :     for (i = 0; i < nb_input_files; i++) {
     583        5610 :         avformat_close_input(&input_files[i]->ctx);
     584        5610 :         av_freep(&input_files[i]);
     585             :     }
     586       11494 :     for (i = 0; i < nb_input_streams; i++) {
     587        5918 :         InputStream *ist = input_streams[i];
     588             : 
     589        5918 :         av_frame_free(&ist->decoded_frame);
     590        5918 :         av_frame_free(&ist->filter_frame);
     591        5918 :         av_dict_free(&ist->decoder_opts);
     592        5918 :         avsubtitle_free(&ist->prev_sub.subtitle);
     593        5918 :         av_frame_free(&ist->sub2video.frame);
     594        5918 :         av_freep(&ist->filters);
     595        5918 :         av_freep(&ist->hwaccel_device);
     596        5918 :         av_freep(&ist->dts_buffer);
     597             : 
     598        5918 :         avcodec_free_context(&ist->dec_ctx);
     599             : 
     600        5918 :         av_freep(&input_streams[i]);
     601             :     }
     602             : 
     603        5576 :     if (vstats_file) {
     604           0 :         if (fclose(vstats_file))
     605           0 :             av_log(NULL, AV_LOG_ERROR,
     606             :                    "Error closing vstats file, loss of information possible: %s\n",
     607           0 :                    av_err2str(AVERROR(errno)));
     608             :     }
     609        5576 :     av_freep(&vstats_filename);
     610             : 
     611        5576 :     av_freep(&input_streams);
     612        5576 :     av_freep(&input_files);
     613        5576 :     av_freep(&output_streams);
     614        5576 :     av_freep(&output_files);
     615             : 
     616        5576 :     uninit_opts();
     617             : 
     618        5576 :     avformat_network_deinit();
     619             : 
     620        5576 :     if (received_sigterm) {
     621           0 :         av_log(NULL, AV_LOG_INFO, "Exiting normally, received signal %d.\n",
     622             :                (int) received_sigterm);
     623        5576 :     } else if (ret && atomic_load(&transcode_init_done)) {
     624           0 :         av_log(NULL, AV_LOG_INFO, "Conversion failed!\n");
     625             :     }
     626        5576 :     term_exit();
     627        5576 :     ffmpeg_exited = 1;
     628        5576 : }
     629             : 
     630        5610 : void remove_avoptions(AVDictionary **a, AVDictionary *b)
     631             : {
     632        5610 :     AVDictionaryEntry *t = NULL;
     633             : 
     634       28855 :     while ((t = av_dict_get(b, "", t, AV_DICT_IGNORE_SUFFIX))) {
     635       17635 :         av_dict_set(a, t->key, NULL, AV_DICT_MATCH_CASE);
     636             :     }
     637        5610 : }
     638             : 
     639       16551 : void assert_avoptions(AVDictionary *m)
     640             : {
     641             :     AVDictionaryEntry *t;
     642       16551 :     if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
     643           0 :         av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
     644           0 :         exit_program(1);
     645             :     }
     646       16551 : }
     647             : 
     648           0 : static void abort_codec_experimental(AVCodec *c, int encoder)
     649             : {
     650           0 :     exit_program(1);
     651             : }
     652             : 
     653     2373591 : static void update_benchmark(const char *fmt, ...)
     654             : {
     655     2373591 :     if (do_benchmark_all) {
     656           0 :         int64_t t = getutime();
     657             :         va_list va;
     658             :         char buf[1024];
     659             : 
     660           0 :         if (fmt) {
     661           0 :             va_start(va, fmt);
     662           0 :             vsnprintf(buf, sizeof(buf), fmt, va);
     663           0 :             va_end(va);
     664           0 :             av_log(NULL, AV_LOG_INFO, "bench: %8"PRIu64" %s \n", t - current_time, buf);
     665             :         }
     666           0 :         current_time = t;
     667             :     }
     668     2373591 : }
     669             : 
     670           0 : static void close_all_output_streams(OutputStream *ost, OSTFinished this_stream, OSTFinished others)
     671             : {
     672             :     int i;
     673           0 :     for (i = 0; i < nb_output_streams; i++) {
     674           0 :         OutputStream *ost2 = output_streams[i];
     675           0 :         ost2->finished |= ost == ost2 ? this_stream : others;
     676             :     }
     677           0 : }
     678             : 
     679      417799 : static void write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost, int unqueue)
     680             : {
     681      417799 :     AVFormatContext *s = of->ctx;
     682      417799 :     AVStream *st = ost->st;
     683             :     int ret;
     684             : 
     685             :     /*
     686             :      * Audio encoders may split the packets --  #frames in != #packets out.
     687             :      * But there is no reordering, so we can limit the number of output packets
     688             :      * by simply dropping them here.
     689             :      * Counting encoded video frames needs to be done separately because of
     690             :      * reordering, see do_video_out().
     691             :      * Do not count the packet when unqueued because it has been counted when queued.
     692             :      */
     693      417799 :     if (!(st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && ost->encoding_needed) && !unqueue) {
     694      320813 :         if (ost->frame_number >= ost->max_frames) {
     695         313 :             av_packet_unref(pkt);
     696         313 :             return;
     697             :         }
     698      320500 :         ost->frame_number++;
     699             :     }
     700             : 
     701      417486 :     if (!of->header_written) {
     702         276 :         AVPacket tmp_pkt = {0};
     703             :         /* the muxer is not initialized yet, buffer the packet */
     704         276 :         if (!av_fifo_space(ost->muxing_queue)) {
     705          16 :             int new_size = FFMIN(2 * av_fifo_size(ost->muxing_queue),
     706             :                                  ost->max_muxing_queue_size);
     707          16 :             if (new_size <= av_fifo_size(ost->muxing_queue)) {
     708           0 :                 av_log(NULL, AV_LOG_ERROR,
     709             :                        "Too many packets buffered for output stream %d:%d.\n",
     710           0 :                        ost->file_index, ost->st->index);
     711           0 :                 exit_program(1);
     712             :             }
     713          16 :             ret = av_fifo_realloc2(ost->muxing_queue, new_size);
     714          16 :             if (ret < 0)
     715           0 :                 exit_program(1);
     716             :         }
     717         276 :         ret = av_packet_ref(&tmp_pkt, pkt);
     718         276 :         if (ret < 0)
     719           0 :             exit_program(1);
     720         276 :         av_fifo_generic_write(ost->muxing_queue, &tmp_pkt, sizeof(tmp_pkt), NULL);
     721         276 :         av_packet_unref(pkt);
     722         276 :         return;
     723             :     }
     724             : 
     725      811092 :     if ((st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
     726      704964 :         (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
     727       23328 :         pkt->pts = pkt->dts = AV_NOPTS_VALUE;
     728             : 
     729      417210 :     if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
     730             :         int i;
     731      105003 :         uint8_t *sd = av_packet_get_side_data(pkt, AV_PKT_DATA_QUALITY_STATS,
     732             :                                               NULL);
     733      105003 :         ost->quality = sd ? AV_RL32(sd) : -1;
     734      105003 :         ost->pict_type = sd ? sd[4] : AV_PICTURE_TYPE_NONE;
     735             : 
     736      525015 :         for (i = 0; i<FF_ARRAY_ELEMS(ost->error); i++) {
     737      420012 :             if (sd && i < sd[5])
     738           0 :                 ost->error[i] = AV_RL64(sd + 8 + 8*i);
     739             :             else
     740      420012 :                 ost->error[i] = -1;
     741             :         }
     742             : 
     743      105003 :         if (ost->frame_rate.num && ost->is_cfr) {
     744        9059 :             if (pkt->duration > 0)
     745           0 :                 av_log(NULL, AV_LOG_WARNING, "Overriding packet duration by frame rate, this should not happen\n");
     746        9059 :             pkt->duration = av_rescale_q(1, av_inv_q(ost->frame_rate),
     747             :                                          ost->mux_timebase);
     748             :         }
     749             :     }
     750             : 
     751      417210 :     av_packet_rescale_ts(pkt, ost->mux_timebase, ost->st->time_base);
     752             : 
     753      417210 :     if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS)) {
     754      336614 :         if (pkt->dts != AV_NOPTS_VALUE &&
     755      312767 :             pkt->pts != AV_NOPTS_VALUE &&
     756      156124 :             pkt->dts > pkt->pts) {
     757           0 :             av_log(s, AV_LOG_WARNING, "Invalid DTS: %"PRId64" PTS: %"PRId64" in output stream %d:%d, replacing by guess\n",
     758             :                    pkt->dts, pkt->pts,
     759           0 :                    ost->file_index, ost->st->index);
     760           0 :             pkt->pts =
     761           0 :             pkt->dts = pkt->pts + pkt->dts + ost->last_mux_dts + 1
     762           0 :                      - FFMIN3(pkt->pts, pkt->dts, ost->last_mux_dts + 1)
     763           0 :                      - FFMAX3(pkt->pts, pkt->dts, ost->last_mux_dts + 1);
     764             :         }
     765      359334 :         if ((st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO || st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) &&
     766      335398 :             pkt->dts != AV_NOPTS_VALUE &&
     767      312070 :             !(st->codecpar->codec_id == AV_CODEC_ID_VP9 && ost->stream_copy) &&
     768      155985 :             ost->last_mux_dts != AV_NOPTS_VALUE) {
     769      151795 :             int64_t max = ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
     770      151795 :             if (pkt->dts < max) {
     771           0 :                 int loglevel = max - pkt->dts > 2 || st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG;
     772           0 :                 av_log(s, loglevel, "Non-monotonous DTS in output stream "
     773             :                        "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
     774           0 :                        ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
     775           0 :                 if (exit_on_error) {
     776           0 :                     av_log(NULL, AV_LOG_FATAL, "aborting.\n");
     777           0 :                     exit_program(1);
     778             :                 }
     779           0 :                 av_log(s, loglevel, "changing to %"PRId64". This may result "
     780             :                        "in incorrect timestamps in the output file.\n",
     781             :                        max);
     782           0 :                 if (pkt->pts >= pkt->dts)
     783           0 :                     pkt->pts = FFMAX(pkt->pts, max);
     784           0 :                 pkt->dts = max;
     785             :             }
     786             :         }
     787             :     }
     788      417210 :     ost->last_mux_dts = pkt->dts;
     789             : 
     790      417210 :     ost->data_size += pkt->size;
     791      417210 :     ost->packets_written++;
     792             : 
     793      417210 :     pkt->stream_index = ost->index;
     794             : 
     795      417210 :     if (debug_ts) {
     796           0 :         av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
     797             :                 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
     798           0 :                 av_get_media_type_string(ost->enc_ctx->codec_type),
     799           0 :                 av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
     800           0 :                 av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
     801             :                 pkt->size
     802             :               );
     803             :     }
     804             : 
     805      417210 :     ret = av_interleaved_write_frame(s, pkt);
     806      417210 :     if (ret < 0) {
     807           0 :         print_error("av_interleaved_write_frame()", ret);
     808           0 :         main_return_code = 1;
     809           0 :         close_all_output_streams(ost, MUXER_FINISHED | ENCODER_FINISHED, ENCODER_FINISHED);
     810             :     }
     811      417210 :     av_packet_unref(pkt);
     812             : }
     813             : 
     814        5461 : static void close_output_stream(OutputStream *ost)
     815             : {
     816        5461 :     OutputFile *of = output_files[ost->file_index];
     817             : 
     818        5461 :     ost->finished |= ENCODER_FINISHED;
     819        5461 :     if (of->shortest) {
     820           0 :         int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, AV_TIME_BASE_Q);
     821           0 :         of->recording_time = FFMIN(of->recording_time, end);
     822             :     }
     823        5461 : }
     824             : 
     825             : /*
     826             :  * Send a single packet to the output, applying any bitstream filters
     827             :  * associated with the output stream.  This may result in any number
     828             :  * of packets actually being written, depending on what bitstream
     829             :  * filters are applied.  The supplied packet is consumed and will be
     830             :  * blank (as if newly-allocated) when this function returns.
     831             :  *
     832             :  * If eof is set, instead indicate EOF to all bitstream filters and
     833             :  * therefore flush any delayed packets to the output.  A blank packet
     834             :  * must be supplied in this case.
     835             :  */
     836      421990 : static void output_packet(OutputFile *of, AVPacket *pkt,
     837             :                           OutputStream *ost, int eof)
     838             : {
     839      421990 :     int ret = 0;
     840             : 
     841             :     /* apply the output bitstream filters, if any */
     842      421990 :     if (ost->nb_bitstream_filters) {
     843             :         int idx;
     844             : 
     845        6091 :         ret = av_bsf_send_packet(ost->bsf_ctx[0], eof ? NULL : pkt);
     846        6091 :         if (ret < 0)
     847           0 :             goto finish;
     848             : 
     849        6091 :         eof = 0;
     850        6091 :         idx = 1;
     851       24356 :         while (idx) {
     852             :             /* get a packet from the previous filter up the chain */
     853       12178 :             ret = av_bsf_receive_packet(ost->bsf_ctx[idx - 1], pkt);
     854       12178 :             if (ret == AVERROR(EAGAIN)) {
     855        6087 :                 ret = 0;
     856        6087 :                 idx--;
     857        6087 :                 continue;
     858        6091 :             } else if (ret == AVERROR_EOF) {
     859           3 :                 eof = 1;
     860        6088 :             } else if (ret < 0)
     861           1 :                 goto finish;
     862             : 
     863             :             /* send it to the next filter down the chain or to the muxer */
     864        6090 :             if (idx < ost->nb_bitstream_filters) {
     865           0 :                 ret = av_bsf_send_packet(ost->bsf_ctx[idx], eof ? NULL : pkt);
     866           0 :                 if (ret < 0)
     867           0 :                     goto finish;
     868           0 :                 idx++;
     869           0 :                 eof = 0;
     870        6090 :             } else if (eof)
     871           3 :                 goto finish;
     872             :             else
     873        6087 :                 write_packet(of, pkt, ost, 0);
     874             :         }
     875      415899 :     } else if (!eof)
     876      411436 :         write_packet(of, pkt, ost, 0);
     877             : 
     878      426453 : finish:
     879      421990 :     if (ret < 0 && ret != AVERROR_EOF) {
     880           1 :         av_log(NULL, AV_LOG_ERROR, "Error applying bitstream filters to an output "
     881             :                "packet for stream #%d:%d.\n", ost->file_index, ost->index);
     882           1 :         if(exit_on_error)
     883           0 :             exit_program(1);
     884             :     }
     885      421990 : }
     886             : 
     887      394667 : static int check_recording_time(OutputStream *ost)
     888             : {
     889      394667 :     OutputFile *of = output_files[ost->file_index];
     890             : 
     891      400858 :     if (of->recording_time != INT64_MAX &&
     892        6191 :         av_compare_ts(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, of->recording_time,
     893        6191 :                       AV_TIME_BASE_Q) >= 0) {
     894           1 :         close_output_stream(ost);
     895           1 :         return 0;
     896             :     }
     897      394666 :     return 1;
     898             : }
     899             : 
     900      297361 : static void do_audio_out(OutputFile *of, OutputStream *ost,
     901             :                          AVFrame *frame)
     902             : {
     903      297361 :     AVCodecContext *enc = ost->enc_ctx;
     904             :     AVPacket pkt;
     905             :     int ret;
     906             : 
     907      297361 :     av_init_packet(&pkt);
     908      297361 :     pkt.data = NULL;
     909      297361 :     pkt.size = 0;
     910             : 
     911      297361 :     if (!check_recording_time(ost))
     912           0 :         return;
     913             : 
     914      297361 :     if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
     915           0 :         frame->pts = ost->sync_opts;
     916      297361 :     ost->sync_opts = frame->pts + frame->nb_samples;
     917      297361 :     ost->samples_encoded += frame->nb_samples;
     918      297361 :     ost->frames_encoded++;
     919             : 
     920      297361 :     av_assert0(pkt.size || !pkt.data);
     921      297361 :     update_benchmark(NULL);
     922      297361 :     if (debug_ts) {
     923           0 :         av_log(NULL, AV_LOG_INFO, "encoder <- type:audio "
     924             :                "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
     925           0 :                av_ts2str(frame->pts), av_ts2timestr(frame->pts, &enc->time_base),
     926             :                enc->time_base.num, enc->time_base.den);
     927             :     }
     928             : 
     929      297361 :     ret = avcodec_send_frame(enc, frame);
     930      297361 :     if (ret < 0)
     931           0 :         goto error;
     932             : 
     933             :     while (1) {
     934      291205 :         ret = avcodec_receive_packet(enc, &pkt);
     935      588566 :         if (ret == AVERROR(EAGAIN))
     936      297361 :             break;
     937      291205 :         if (ret < 0)
     938           0 :             goto error;
     939             : 
     940      291205 :         update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
     941             : 
     942      291205 :         av_packet_rescale_ts(&pkt, enc->time_base, ost->mux_timebase);
     943             : 
     944      291205 :         if (debug_ts) {
     945           0 :             av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
     946             :                    "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
     947           0 :                    av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &enc->time_base),
     948           0 :                    av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &enc->time_base));
     949             :         }
     950             : 
     951      291205 :         output_packet(of, &pkt, ost, 0);
     952             :     }
     953             : 
     954      297361 :     return;
     955           0 : error:
     956           0 :     av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
     957           0 :     exit_program(1);
     958             : }
     959             : 
     960         595 : static void do_subtitle_out(OutputFile *of,
     961             :                             OutputStream *ost,
     962             :                             AVSubtitle *sub)
     963             : {
     964         595 :     int subtitle_out_max_size = 1024 * 1024;
     965             :     int subtitle_out_size, nb, i;
     966             :     AVCodecContext *enc;
     967             :     AVPacket pkt;
     968             :     int64_t pts;
     969             : 
     970         595 :     if (sub->pts == AV_NOPTS_VALUE) {
     971           0 :         av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
     972           0 :         if (exit_on_error)
     973           0 :             exit_program(1);
     974           0 :         return;
     975             :     }
     976             : 
     977         595 :     enc = ost->enc_ctx;
     978             : 
     979         595 :     if (!subtitle_out) {
     980          30 :         subtitle_out = av_malloc(subtitle_out_max_size);
     981          30 :         if (!subtitle_out) {
     982           0 :             av_log(NULL, AV_LOG_FATAL, "Failed to allocate subtitle_out\n");
     983           0 :             exit_program(1);
     984             :         }
     985             :     }
     986             : 
     987             :     /* Note: DVB subtitle need one packet to draw them and one other
     988             :        packet to clear them */
     989             :     /* XXX: signal it in the codec context ? */
     990         595 :     if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
     991           0 :         nb = 2;
     992             :     else
     993         595 :         nb = 1;
     994             : 
     995             :     /* shift timestamp to honor -ss and make check_recording_time() work with -t */
     996         595 :     pts = sub->pts;
     997         595 :     if (output_files[ost->file_index]->start_time != AV_NOPTS_VALUE)
     998           0 :         pts -= output_files[ost->file_index]->start_time;
     999        1190 :     for (i = 0; i < nb; i++) {
    1000         595 :         unsigned save_num_rects = sub->num_rects;
    1001             : 
    1002         595 :         ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
    1003         595 :         if (!check_recording_time(ost))
    1004           0 :             return;
    1005             : 
    1006         595 :         sub->pts = pts;
    1007             :         // start_display_time is required to be 0
    1008         595 :         sub->pts               += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
    1009         595 :         sub->end_display_time  -= sub->start_display_time;
    1010         595 :         sub->start_display_time = 0;
    1011         595 :         if (i == 1)
    1012           0 :             sub->num_rects = 0;
    1013             : 
    1014         595 :         ost->frames_encoded++;
    1015             : 
    1016         595 :         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
    1017             :                                                     subtitle_out_max_size, sub);
    1018         595 :         if (i == 1)
    1019           0 :             sub->num_rects = save_num_rects;
    1020         595 :         if (subtitle_out_size < 0) {
    1021           0 :             av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
    1022           0 :             exit_program(1);
    1023             :         }
    1024             : 
    1025         595 :         av_init_packet(&pkt);
    1026         595 :         pkt.data = subtitle_out;
    1027         595 :         pkt.size = subtitle_out_size;
    1028         595 :         pkt.pts  = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->mux_timebase);
    1029         595 :         pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->mux_timebase);
    1030         595 :         if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
    1031             :             /* XXX: the pts correction is handled here. Maybe handling
    1032             :                it in the codec would be better */
    1033           0 :             if (i == 0)
    1034           0 :                 pkt.pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, ost->mux_timebase);
    1035             :             else
    1036           0 :                 pkt.pts += av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->mux_timebase);
    1037             :         }
    1038         595 :         pkt.dts = pkt.pts;
    1039         595 :         output_packet(of, &pkt, ost, 0);
    1040             :     }
    1041             : }
    1042             : 
    1043       99021 : static void do_video_out(OutputFile *of,
    1044             :                          OutputStream *ost,
    1045             :                          AVFrame *next_picture,
    1046             :                          double sync_ipts)
    1047             : {
    1048             :     int ret, format_video_sync;
    1049             :     AVPacket pkt;
    1050       99021 :     AVCodecContext *enc = ost->enc_ctx;
    1051       99021 :     AVCodecParameters *mux_par = ost->st->codecpar;
    1052             :     AVRational frame_rate;
    1053             :     int nb_frames, nb0_frames, i;
    1054             :     double delta, delta0;
    1055       99021 :     double duration = 0;
    1056       99021 :     int frame_size = 0;
    1057       99021 :     InputStream *ist = NULL;
    1058       99021 :     AVFilterContext *filter = ost->filter->filter;
    1059             : 
    1060       99021 :     if (ost->source_index >= 0)
    1061       97591 :         ist = input_streams[ost->source_index];
    1062             : 
    1063       99021 :     frame_rate = av_buffersink_get_frame_rate(filter);
    1064       99021 :     if (frame_rate.num > 0 && frame_rate.den > 0)
    1065       99021 :         duration = 1/(av_q2d(frame_rate) * av_q2d(enc->time_base));
    1066             : 
    1067       99021 :     if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
    1068       63107 :         duration = FFMIN(duration, 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base)));
    1069             : 
    1070      197945 :     if (!ost->filters_script &&
    1071      191720 :         !ost->filters &&
    1072       90510 :         next_picture &&
    1073       89120 :         ist &&
    1074       89120 :         lrintf(next_picture->pkt_duration * av_q2d(ist->st->time_base) / av_q2d(enc->time_base)) > 0) {
    1075       84301 :         duration = lrintf(next_picture->pkt_duration * av_q2d(ist->st->time_base) / av_q2d(enc->time_base));
    1076             :     }
    1077             : 
    1078       99021 :     if (!next_picture) {
    1079             :         //end, flushing
    1080        2348 :         nb0_frames = nb_frames = mid_pred(ost->last_nb0_frames[0],
    1081             :                                           ost->last_nb0_frames[1],
    1082             :                                           ost->last_nb0_frames[2]);
    1083             :     } else {
    1084       96673 :         delta0 = sync_ipts - ost->sync_opts; // delta0 is the "drift" between the input frame (next_picture) and where it would fall in the output.
    1085       96673 :         delta  = delta0 + duration;
    1086             : 
    1087             :         /* by default, we output a single frame */
    1088       96673 :         nb0_frames = 0; // tracks the number of times the PREVIOUS frame should be duplicated, mostly for variable framerate (VFR)
    1089       96673 :         nb_frames = 1;
    1090             : 
    1091       96673 :         format_video_sync = video_sync_method;
    1092       96673 :         if (format_video_sync == VSYNC_AUTO) {
    1093       54769 :             if(!strcmp(of->ctx->oformat->name, "avi")) {
    1094       12650 :                 format_video_sync = VSYNC_VFR;
    1095             :             } else
    1096       42119 :                 format_video_sync = (of->ctx->oformat->flags & AVFMT_VARIABLE_FPS) ? ((of->ctx->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : VSYNC_CFR;
    1097       54769 :             if (   ist
    1098       53379 :                 && format_video_sync == VSYNC_CFR
    1099        8694 :                 && input_files[ist->file_index]->ctx->nb_streams == 1
    1100        7674 :                 && input_files[ist->file_index]->input_ts_offset == 0) {
    1101        7674 :                 format_video_sync = VSYNC_VSCFR;
    1102             :             }
    1103       54769 :             if (format_video_sync == VSYNC_CFR && copy_ts) {
    1104           0 :                 format_video_sync = VSYNC_VSCFR;
    1105             :             }
    1106             :         }
    1107       96673 :         ost->is_cfr = (format_video_sync == VSYNC_CFR || format_video_sync == VSYNC_VSCFR);
    1108             : 
    1109       96673 :         if (delta0 < 0 &&
    1110       10917 :             delta > 0 &&
    1111       10515 :             format_video_sync != VSYNC_PASSTHROUGH &&
    1112             :             format_video_sync != VSYNC_DROP) {
    1113        7746 :             if (delta0 < -0.6) {
    1114         437 :                 av_log(NULL, AV_LOG_WARNING, "Past duration %f too large\n", -delta0);
    1115             :             } else
    1116        7309 :                 av_log(NULL, AV_LOG_DEBUG, "Clipping frame in rate conversion by %f\n", -delta0);
    1117        7746 :             sync_ipts = ost->sync_opts;
    1118        7746 :             duration += delta0;
    1119        7746 :             delta0 = 0;
    1120             :         }
    1121             : 
    1122       96673 :         switch (format_video_sync) {
    1123        7674 :         case VSYNC_VSCFR:
    1124        7674 :             if (ost->frame_number == 0 && delta0 >= 0.5) {
    1125           0 :                 av_log(NULL, AV_LOG_DEBUG, "Not duplicating %d initial frames\n", (int)lrintf(delta0));
    1126           0 :                 delta = duration;
    1127           0 :                 delta0 = 0;
    1128           0 :                 ost->sync_opts = lrint(sync_ipts);
    1129             :             }
    1130             :         case VSYNC_CFR:
    1131             :             // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
    1132        8848 :             if (frame_drop_threshold && delta < frame_drop_threshold && ost->frame_number) {
    1133           0 :                 nb_frames = 0;
    1134        8848 :             } else if (delta < -1.1)
    1135           0 :                 nb_frames = 0;
    1136        8848 :             else if (delta > 1.1) {
    1137         350 :                 nb_frames = lrintf(delta);
    1138         350 :                 if (delta0 > 1.1)
    1139           2 :                     nb0_frames = lrintf(delta0 - 0.6);
    1140             :             }
    1141        8848 :             break;
    1142       46058 :         case VSYNC_VFR:
    1143       46058 :             if (delta <= -0.6)
    1144         171 :                 nb_frames = 0;
    1145       45887 :             else if (delta > 0.6)
    1146       45299 :                 ost->sync_opts = lrint(sync_ipts);
    1147       46058 :             break;
    1148       41767 :         case VSYNC_DROP:
    1149             :         case VSYNC_PASSTHROUGH:
    1150       41767 :             ost->sync_opts = lrint(sync_ipts);
    1151       41767 :             break;
    1152           0 :         default:
    1153           0 :             av_assert0(0);
    1154             :         }
    1155             :     }
    1156             : 
    1157       99021 :     nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
    1158       99021 :     nb0_frames = FFMIN(nb0_frames, nb_frames);
    1159             : 
    1160       99021 :     memmove(ost->last_nb0_frames + 1,
    1161       99021 :             ost->last_nb0_frames,
    1162             :             sizeof(ost->last_nb0_frames[0]) * (FF_ARRAY_ELEMS(ost->last_nb0_frames) - 1));
    1163       99021 :     ost->last_nb0_frames[0] = nb0_frames;
    1164             : 
    1165       99021 :     if (nb0_frames == 0 && ost->last_dropped) {
    1166         171 :         nb_frames_drop++;
    1167         342 :         av_log(NULL, AV_LOG_VERBOSE,
    1168             :                "*** dropping frame %d from stream %d at ts %"PRId64"\n",
    1169         342 :                ost->frame_number, ost->st->index, ost->last_frame->pts);
    1170             :     }
    1171       99021 :     if (nb_frames > (nb0_frames && ost->last_dropped) + (nb_frames > nb0_frames)) {
    1172          49 :         if (nb_frames > dts_error_threshold * 30) {
    1173           0 :             av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
    1174           0 :             nb_frames_drop++;
    1175           0 :             return;
    1176             :         }
    1177          49 :         nb_frames_dup += nb_frames - (nb0_frames && ost->last_dropped) - (nb_frames > nb0_frames);
    1178          49 :         av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
    1179          49 :         if (nb_frames_dup > dup_warning) {
    1180           0 :             av_log(NULL, AV_LOG_WARNING, "More than %d frames duplicated\n", dup_warning);
    1181           0 :             dup_warning *= 10;
    1182             :         }
    1183             :     }
    1184       99021 :     ost->last_dropped = nb_frames == nb0_frames && next_picture;
    1185             : 
    1186             :   /* duplicates frame if needed */
    1187      195731 :   for (i = 0; i < nb_frames; i++) {
    1188             :     AVFrame *in_picture;
    1189       96711 :     av_init_packet(&pkt);
    1190       96711 :     pkt.data = NULL;
    1191       96711 :     pkt.size = 0;
    1192             : 
    1193       96711 :     if (i < nb0_frames && ost->last_frame) {
    1194          69 :         in_picture = ost->last_frame;
    1195             :     } else
    1196       96642 :         in_picture = next_picture;
    1197             : 
    1198       96711 :     if (!in_picture)
    1199           0 :         return;
    1200             : 
    1201       96711 :     in_picture->pts = ost->sync_opts;
    1202             : 
    1203             : #if 1
    1204       96711 :     if (!check_recording_time(ost))
    1205             : #else
    1206             :     if (ost->frame_number >= ost->max_frames)
    1207             : #endif
    1208           1 :         return;
    1209             : 
    1210             :     {
    1211       96710 :         int forced_keyframe = 0;
    1212             :         double pts_time;
    1213             : 
    1214       97590 :         if (enc->flags & (AV_CODEC_FLAG_INTERLACED_DCT | AV_CODEC_FLAG_INTERLACED_ME) &&
    1215         880 :             ost->top_field_first >= 0)
    1216          25 :             in_picture->top_field_first = !!ost->top_field_first;
    1217             : 
    1218       96710 :         if (in_picture->interlaced_frame) {
    1219        6349 :             if (enc->codec->id == AV_CODEC_ID_MJPEG)
    1220           0 :                 mux_par->field_order = in_picture->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
    1221             :             else
    1222        6349 :                 mux_par->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
    1223             :         } else
    1224       90361 :             mux_par->field_order = AV_FIELD_PROGRESSIVE;
    1225             : 
    1226       96710 :         in_picture->quality = enc->global_quality;
    1227       96710 :         in_picture->pict_type = 0;
    1228             : 
    1229      193420 :         pts_time = in_picture->pts != AV_NOPTS_VALUE ?
    1230       96710 :             in_picture->pts * av_q2d(enc->time_base) : NAN;
    1231       96749 :         if (ost->forced_kf_index < ost->forced_kf_count &&
    1232          39 :             in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
    1233           2 :             ost->forced_kf_index++;
    1234           2 :             forced_keyframe = 1;
    1235       96708 :         } else if (ost->forced_keyframes_pexpr) {
    1236             :             double res;
    1237           0 :             ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
    1238           0 :             res = av_expr_eval(ost->forced_keyframes_pexpr,
    1239           0 :                                ost->forced_keyframes_expr_const_values, NULL);
    1240             :             ff_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
    1241             :                     ost->forced_keyframes_expr_const_values[FKF_N],
    1242             :                     ost->forced_keyframes_expr_const_values[FKF_N_FORCED],
    1243             :                     ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N],
    1244             :                     ost->forced_keyframes_expr_const_values[FKF_T],
    1245             :                     ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T],
    1246             :                     res);
    1247           0 :             if (res) {
    1248           0 :                 forced_keyframe = 1;
    1249           0 :                 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] =
    1250           0 :                     ost->forced_keyframes_expr_const_values[FKF_N];
    1251           0 :                 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] =
    1252           0 :                     ost->forced_keyframes_expr_const_values[FKF_T];
    1253           0 :                 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] += 1;
    1254             :             }
    1255             : 
    1256           0 :             ost->forced_keyframes_expr_const_values[FKF_N] += 1;
    1257       96708 :         } else if (   ost->forced_keyframes
    1258          48 :                    && !strncmp(ost->forced_keyframes, "source", 6)
    1259           0 :                    && in_picture->key_frame==1) {
    1260           0 :             forced_keyframe = 1;
    1261             :         }
    1262             : 
    1263       96710 :         if (forced_keyframe) {
    1264           2 :             in_picture->pict_type = AV_PICTURE_TYPE_I;
    1265           2 :             av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
    1266             :         }
    1267             : 
    1268       96710 :         update_benchmark(NULL);
    1269       96710 :         if (debug_ts) {
    1270           0 :             av_log(NULL, AV_LOG_INFO, "encoder <- type:video "
    1271             :                    "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
    1272           0 :                    av_ts2str(in_picture->pts), av_ts2timestr(in_picture->pts, &enc->time_base),
    1273             :                    enc->time_base.num, enc->time_base.den);
    1274             :         }
    1275             : 
    1276       96710 :         ost->frames_encoded++;
    1277             : 
    1278       96710 :         ret = avcodec_send_frame(enc, in_picture);
    1279       96710 :         if (ret < 0)
    1280           0 :             goto error;
    1281             : 
    1282             :         while (1) {
    1283      289744 :             ret = avcodec_receive_packet(enc, &pkt);
    1284      193227 :             update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
    1285      193227 :             if (ret == AVERROR(EAGAIN))
    1286       96710 :                 break;
    1287       96517 :             if (ret < 0)
    1288           0 :                 goto error;
    1289             : 
    1290       96517 :             if (debug_ts) {
    1291           0 :                 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
    1292             :                        "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
    1293           0 :                        av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &enc->time_base),
    1294           0 :                        av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &enc->time_base));
    1295             :             }
    1296             : 
    1297       96517 :             if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & AV_CODEC_CAP_DELAY))
    1298           0 :                 pkt.pts = ost->sync_opts;
    1299             : 
    1300       96517 :             av_packet_rescale_ts(&pkt, enc->time_base, ost->mux_timebase);
    1301             : 
    1302       96517 :             if (debug_ts) {
    1303           0 :                 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
    1304             :                     "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
    1305           0 :                     av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->mux_timebase),
    1306           0 :                     av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->mux_timebase));
    1307             :             }
    1308             : 
    1309       96517 :             frame_size = pkt.size;
    1310       96517 :             output_packet(of, &pkt, ost, 0);
    1311             : 
    1312             :             /* if two pass, output log */
    1313       96517 :             if (ost->logfile && enc->stats_out) {
    1314           0 :                 fprintf(ost->logfile, "%s", enc->stats_out);
    1315             :             }
    1316             :         }
    1317             :     }
    1318       96710 :     ost->sync_opts++;
    1319             :     /*
    1320             :      * For video, number of frames in == number of packets out.
    1321             :      * But there may be reordering, so we can't throw away frames on encoder
    1322             :      * flush, we need to limit them here, before they go into encoder.
    1323             :      */
    1324       96710 :     ost->frame_number++;
    1325             : 
    1326       96710 :     if (vstats_filename && frame_size)
    1327           0 :         do_video_stats(ost, frame_size);
    1328             :   }
    1329             : 
    1330       99020 :     if (!ost->last_frame)
    1331        4464 :         ost->last_frame = av_frame_alloc();
    1332       99020 :     av_frame_unref(ost->last_frame);
    1333       99020 :     if (next_picture && ost->last_frame)
    1334       96672 :         av_frame_ref(ost->last_frame, next_picture);
    1335             :     else
    1336        2348 :         av_frame_free(&ost->last_frame);
    1337             : 
    1338       99020 :     return;
    1339           0 : error:
    1340           0 :     av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
    1341           0 :     exit_program(1);
    1342             : }
    1343             : 
    1344           0 : static double psnr(double d)
    1345             : {
    1346           0 :     return -10.0 * log10(d);
    1347             : }
    1348             : 
    1349           0 : static void do_video_stats(OutputStream *ost, int frame_size)
    1350             : {
    1351             :     AVCodecContext *enc;
    1352             :     int frame_number;
    1353             :     double ti1, bitrate, avg_bitrate;
    1354             : 
    1355             :     /* this is executed just the first time do_video_stats is called */
    1356           0 :     if (!vstats_file) {
    1357           0 :         vstats_file = fopen(vstats_filename, "w");
    1358           0 :         if (!vstats_file) {
    1359           0 :             perror("fopen");
    1360           0 :             exit_program(1);
    1361             :         }
    1362             :     }
    1363             : 
    1364           0 :     enc = ost->enc_ctx;
    1365           0 :     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
    1366           0 :         frame_number = ost->st->nb_frames;
    1367           0 :         if (vstats_version <= 1) {
    1368           0 :             fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number,
    1369           0 :                     ost->quality / (float)FF_QP2LAMBDA);
    1370             :         } else  {
    1371           0 :             fprintf(vstats_file, "out= %2d st= %2d frame= %5d q= %2.1f ", ost->file_index, ost->index, frame_number,
    1372           0 :                     ost->quality / (float)FF_QP2LAMBDA);
    1373             :         }
    1374             : 
    1375           0 :         if (ost->error[0]>=0 && (enc->flags & AV_CODEC_FLAG_PSNR))
    1376           0 :             fprintf(vstats_file, "PSNR= %6.2f ", psnr(ost->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
    1377             : 
    1378           0 :         fprintf(vstats_file,"f_size= %6d ", frame_size);
    1379             :         /* compute pts value */
    1380           0 :         ti1 = av_stream_get_end_pts(ost->st) * av_q2d(ost->st->time_base);
    1381           0 :         if (ti1 < 0.01)
    1382           0 :             ti1 = 0.01;
    1383             : 
    1384           0 :         bitrate     = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
    1385           0 :         avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
    1386           0 :         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
    1387           0 :                (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
    1388           0 :         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(ost->pict_type));
    1389             :     }
    1390           0 : }
    1391             : 
    1392             : static int init_output_stream(OutputStream *ost, char *error, int error_len);
    1393             : 
    1394         252 : static void finish_output_stream(OutputStream *ost)
    1395             : {
    1396         252 :     OutputFile *of = output_files[ost->file_index];
    1397             :     int i;
    1398             : 
    1399         252 :     ost->finished = ENCODER_FINISHED | MUXER_FINISHED;
    1400             : 
    1401         252 :     if (of->shortest) {
    1402           0 :         for (i = 0; i < of->ctx->nb_streams; i++)
    1403           0 :             output_streams[of->ost_index + i]->finished = ENCODER_FINISHED | MUXER_FINISHED;
    1404             :     }
    1405         252 : }
    1406             : 
    1407             : /**
    1408             :  * Get and encode new output from any of the filtergraphs, without causing
    1409             :  * activity.
    1410             :  *
    1411             :  * @return  0 for success, <0 for severe errors
    1412             :  */
    1413      407375 : static int reap_filters(int flush)
    1414             : {
    1415      407375 :     AVFrame *filtered_frame = NULL;
    1416             :     int i;
    1417             : 
    1418             :     /* Reap all buffers present in the buffer sinks */
    1419      829193 :     for (i = 0; i < nb_output_streams; i++) {
    1420      421818 :         OutputStream *ost = output_streams[i];
    1421      421818 :         OutputFile    *of = output_files[ost->file_index];
    1422             :         AVFilterContext *filter;
    1423      421818 :         AVCodecContext *enc = ost->enc_ctx;
    1424      421818 :         int ret = 0;
    1425             : 
    1426      421818 :         if (!ost->filter || !ost->filter->graph->graph)
    1427       45264 :             continue;
    1428      376554 :         filter = ost->filter->filter;
    1429             : 
    1430      376554 :         if (!ost->initialized) {
    1431        5415 :             char error[1024] = "";
    1432        5415 :             ret = init_output_stream(ost, error, sizeof(error));
    1433        5415 :             if (ret < 0) {
    1434           0 :                 av_log(NULL, AV_LOG_ERROR, "Error initializing output stream %d:%d -- %s\n",
    1435             :                        ost->file_index, ost->index, error);
    1436           0 :                 exit_program(1);
    1437             :             }
    1438             :         }
    1439             : 
    1440      376554 :         if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
    1441           0 :             return AVERROR(ENOMEM);
    1442             :         }
    1443      376554 :         filtered_frame = ost->filtered_frame;
    1444             : 
    1445      394034 :         while (1) {
    1446      770588 :             double float_pts = AV_NOPTS_VALUE; // this is identical to filtered_frame.pts but with higher precision
    1447      770588 :             ret = av_buffersink_get_frame_flags(filter, filtered_frame,
    1448             :                                                AV_BUFFERSINK_FLAG_NO_REQUEST);
    1449      770588 :             if (ret < 0) {
    1450      376554 :                 if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
    1451           0 :                     av_log(NULL, AV_LOG_WARNING,
    1452           0 :                            "Error in av_buffersink_get_frame_flags(): %s\n", av_err2str(ret));
    1453      376554 :                 } else if (flush && ret == AVERROR_EOF) {
    1454        3454 :                     if (av_buffersink_get_type(filter) == AVMEDIA_TYPE_VIDEO)
    1455        2348 :                         do_video_out(of, ost, NULL, AV_NOPTS_VALUE);
    1456             :                 }
    1457      376554 :                 break;
    1458             :             }
    1459      394034 :             if (ost->finished) {
    1460           0 :                 av_frame_unref(filtered_frame);
    1461           0 :                 continue;
    1462             :             }
    1463      394034 :             if (filtered_frame->pts != AV_NOPTS_VALUE) {
    1464      394034 :                 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
    1465      394034 :                 AVRational filter_tb = av_buffersink_get_time_base(filter);
    1466      394034 :                 AVRational tb = enc->time_base;
    1467      394034 :                 int extra_bits = av_clip(29 - av_log2(tb.den), 0, 16);
    1468             : 
    1469      394034 :                 tb.den <<= extra_bits;
    1470      394034 :                 float_pts =
    1471      788068 :                     av_rescale_q(filtered_frame->pts, filter_tb, tb) -
    1472      394034 :                     av_rescale_q(start_time, AV_TIME_BASE_Q, tb);
    1473      394034 :                 float_pts /= 1 << extra_bits;
    1474             :                 // avoid exact midoints to reduce the chance of rounding differences, this can be removed in case the fps code is changed to work with integers
    1475      394034 :                 float_pts += FFSIGN(float_pts) * 1.0 / (1<<17);
    1476             : 
    1477      394034 :                 filtered_frame->pts =
    1478      788068 :                     av_rescale_q(filtered_frame->pts, filter_tb, enc->time_base) -
    1479      394034 :                     av_rescale_q(start_time, AV_TIME_BASE_Q, enc->time_base);
    1480             :             }
    1481             :             //if (ost->source_index >= 0)
    1482             :             //    *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
    1483             : 
    1484      394034 :             switch (av_buffersink_get_type(filter)) {
    1485       96673 :             case AVMEDIA_TYPE_VIDEO:
    1486       96673 :                 if (!ost->frame_aspect_ratio.num)
    1487       96673 :                     enc->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
    1488             : 
    1489       96673 :                 if (debug_ts) {
    1490           0 :                     av_log(NULL, AV_LOG_INFO, "filter -> pts:%s pts_time:%s exact:%f time_base:%d/%d\n",
    1491           0 :                             av_ts2str(filtered_frame->pts), av_ts2timestr(filtered_frame->pts, &enc->time_base),
    1492             :                             float_pts,
    1493             :                             enc->time_base.num, enc->time_base.den);
    1494             :                 }
    1495             : 
    1496       96673 :                 do_video_out(of, ost, filtered_frame, float_pts);
    1497       96673 :                 break;
    1498      297361 :             case AVMEDIA_TYPE_AUDIO:
    1499      594722 :                 if (!(enc->codec->capabilities & AV_CODEC_CAP_PARAM_CHANGE) &&
    1500      297361 :                     enc->channels != filtered_frame->channels) {
    1501           0 :                     av_log(NULL, AV_LOG_ERROR,
    1502             :                            "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
    1503           0 :                     break;
    1504             :                 }
    1505      297361 :                 do_audio_out(of, ost, filtered_frame);
    1506      297361 :                 break;
    1507           0 :             default:
    1508             :                 // TODO support subtitle filters
    1509           0 :                 av_assert0(0);
    1510             :             }
    1511             : 
    1512      394034 :             av_frame_unref(filtered_frame);
    1513             :         }
    1514             :     }
    1515             : 
    1516      407375 :     return 0;
    1517             : }
    1518             : 
    1519        5575 : static void print_final_stats(int64_t total_size)
    1520             : {
    1521        5575 :     uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
    1522        5575 :     uint64_t subtitle_size = 0;
    1523        5575 :     uint64_t data_size = 0;
    1524        5575 :     float percent = -1.0;
    1525             :     int i, j;
    1526        5575 :     int pass1_used = 1;
    1527             : 
    1528       11289 :     for (i = 0; i < nb_output_streams; i++) {
    1529        5714 :         OutputStream *ost = output_streams[i];
    1530        5714 :         switch (ost->enc_ctx->codec_type) {
    1531        4504 :             case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
    1532        1163 :             case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
    1533          36 :             case AVMEDIA_TYPE_SUBTITLE: subtitle_size += ost->data_size; break;
    1534          11 :             default:                 other_size += ost->data_size; break;
    1535             :         }
    1536        5714 :         extra_size += ost->enc_ctx->extradata_size;
    1537        5714 :         data_size  += ost->data_size;
    1538        5714 :         if (   (ost->enc_ctx->flags & (AV_CODEC_FLAG_PASS1 | AV_CODEC_FLAG_PASS2))
    1539             :             != AV_CODEC_FLAG_PASS1)
    1540        5714 :             pass1_used = 0;
    1541             :     }
    1542             : 
    1543        5575 :     if (data_size && total_size>0 && total_size >= data_size)
    1544        3811 :         percent = 100.0 * (total_size - data_size) / data_size;
    1545             : 
    1546        5575 :     av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
    1547             :            video_size / 1024.0,
    1548             :            audio_size / 1024.0,
    1549             :            subtitle_size / 1024.0,
    1550             :            other_size / 1024.0,
    1551             :            extra_size / 1024.0);
    1552        5575 :     if (percent >= 0.0)
    1553        3811 :         av_log(NULL, AV_LOG_INFO, "%f%%", percent);
    1554             :     else
    1555        1764 :         av_log(NULL, AV_LOG_INFO, "unknown");
    1556        5575 :     av_log(NULL, AV_LOG_INFO, "\n");
    1557             : 
    1558             :     /* print verbose per-stream stats */
    1559       11185 :     for (i = 0; i < nb_input_files; i++) {
    1560        5610 :         InputFile *f = input_files[i];
    1561        5610 :         uint64_t total_packets = 0, total_size = 0;
    1562             : 
    1563        5610 :         av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
    1564        5610 :                i, f->ctx->url);
    1565             : 
    1566       11528 :         for (j = 0; j < f->nb_streams; j++) {
    1567        5918 :             InputStream *ist = input_streams[f->ist_index + j];
    1568        5918 :             enum AVMediaType type = ist->dec_ctx->codec_type;
    1569             : 
    1570        5918 :             total_size    += ist->data_size;
    1571        5918 :             total_packets += ist->nb_packets;
    1572             : 
    1573        5918 :             av_log(NULL, AV_LOG_VERBOSE, "  Input stream #%d:%d (%s): ",
    1574             :                    i, j, media_type_string(type));
    1575        5918 :             av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
    1576             :                    ist->nb_packets, ist->data_size);
    1577             : 
    1578        5918 :             if (ist->decoding_needed) {
    1579        5462 :                 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
    1580             :                        ist->frames_decoded);
    1581        5462 :                 if (type == AVMEDIA_TYPE_AUDIO)
    1582        1071 :                     av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
    1583        5462 :                 av_log(NULL, AV_LOG_VERBOSE, "; ");
    1584             :             }
    1585             : 
    1586        5918 :             av_log(NULL, AV_LOG_VERBOSE, "\n");
    1587             :         }
    1588             : 
    1589        5610 :         av_log(NULL, AV_LOG_VERBOSE, "  Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
    1590             :                total_packets, total_size);
    1591             :     }
    1592             : 
    1593       11151 :     for (i = 0; i < nb_output_files; i++) {
    1594        5576 :         OutputFile *of = output_files[i];
    1595        5576 :         uint64_t total_packets = 0, total_size = 0;
    1596             : 
    1597        5576 :         av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
    1598        5576 :                i, of->ctx->url);
    1599             : 
    1600       11290 :         for (j = 0; j < of->ctx->nb_streams; j++) {
    1601        5714 :             OutputStream *ost = output_streams[of->ost_index + j];
    1602        5714 :             enum AVMediaType type = ost->enc_ctx->codec_type;
    1603             : 
    1604        5714 :             total_size    += ost->data_size;
    1605        5714 :             total_packets += ost->packets_written;
    1606             : 
    1607        5714 :             av_log(NULL, AV_LOG_VERBOSE, "  Output stream #%d:%d (%s): ",
    1608             :                    i, j, media_type_string(type));
    1609        5714 :             if (ost->encoding_needed) {
    1610        5479 :                 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
    1611             :                        ost->frames_encoded);
    1612        5479 :                 if (type == AVMEDIA_TYPE_AUDIO)
    1613        1068 :                     av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
    1614        5479 :                 av_log(NULL, AV_LOG_VERBOSE, "; ");
    1615             :             }
    1616             : 
    1617        5714 :             av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
    1618             :                    ost->packets_written, ost->data_size);
    1619             : 
    1620        5714 :             av_log(NULL, AV_LOG_VERBOSE, "\n");
    1621             :         }
    1622             : 
    1623        5576 :         av_log(NULL, AV_LOG_VERBOSE, "  Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
    1624             :                total_packets, total_size);
    1625             :     }
    1626        5575 :     if(video_size + data_size + audio_size + subtitle_size + extra_size == 0){
    1627           5 :         av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded ");
    1628           5 :         if (pass1_used) {
    1629           1 :             av_log(NULL, AV_LOG_WARNING, "\n");
    1630             :         } else {
    1631           4 :             av_log(NULL, AV_LOG_WARNING, "(check -ss / -t / -frames parameters if used)\n");
    1632             :         }
    1633             :     }
    1634        5575 : }
    1635             : 
    1636     1322377 : static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
    1637             : {
    1638             :     AVBPrint buf, buf_script;
    1639             :     OutputStream *ost;
    1640             :     AVFormatContext *oc;
    1641             :     int64_t total_size;
    1642             :     AVCodecContext *enc;
    1643             :     int frame_number, vid, i;
    1644             :     double bitrate;
    1645             :     double speed;
    1646     1322377 :     int64_t pts = INT64_MIN + 1;
    1647             :     static int64_t last_time = -1;
    1648             :     static int qp_histogram[52];
    1649             :     int hours, mins, secs, us;
    1650             :     const char *hours_sign;
    1651             :     int ret;
    1652             :     float t;
    1653             : 
    1654     1322377 :     if (!print_stats && !is_last_report && !progress_avio)
    1655     2630300 :         return;
    1656             : 
    1657        8875 :     if (!is_last_report) {
    1658        3300 :         if (last_time == -1) {
    1659          23 :             last_time = cur_time;
    1660          23 :             return;
    1661             :         }
    1662        3277 :         if ((cur_time - last_time) < 500000)
    1663        3273 :             return;
    1664           4 :         last_time = cur_time;
    1665             :     }
    1666             : 
    1667        5579 :     t = (cur_time-timer_start) / 1000000.0;
    1668             : 
    1669             : 
    1670        5579 :     oc = output_files[0]->ctx;
    1671             : 
    1672        5579 :     total_size = avio_size(oc->pb);
    1673        5579 :     if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
    1674          48 :         total_size = avio_tell(oc->pb);
    1675             : 
    1676        5579 :     vid = 0;
    1677        5579 :     av_bprint_init(&buf, 0, AV_BPRINT_SIZE_AUTOMATIC);
    1678        5579 :     av_bprint_init(&buf_script, 0, 1);
    1679       11297 :     for (i = 0; i < nb_output_streams; i++) {
    1680        5718 :         float q = -1;
    1681        5718 :         ost = output_streams[i];
    1682        5718 :         enc = ost->enc_ctx;
    1683        5718 :         if (!ost->stream_copy)
    1684        5484 :             q = ost->quality / (float) FF_QP2LAMBDA;
    1685             : 
    1686        5718 :         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
    1687           7 :             av_bprintf(&buf, "q=%2.1f ", q);
    1688           7 :             av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
    1689             :                        ost->file_index, ost->index, q);
    1690             :         }
    1691        5718 :         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
    1692             :             float fps;
    1693             : 
    1694        4498 :             frame_number = ost->frame_number;
    1695        4498 :             fps = t > 1 ? frame_number / t : 0;
    1696        4498 :             av_bprintf(&buf, "frame=%5d fps=%3.*f q=%3.1f ",
    1697             :                      frame_number, fps < 9.95, fps, q);
    1698        4498 :             av_bprintf(&buf_script, "frame=%d\n", frame_number);
    1699        4498 :             av_bprintf(&buf_script, "fps=%.1f\n", fps);
    1700        4498 :             av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
    1701             :                        ost->file_index, ost->index, q);
    1702        4498 :             if (is_last_report)
    1703        4497 :                 av_bprintf(&buf, "L");
    1704        4498 :             if (qp_hist) {
    1705             :                 int j;
    1706           0 :                 int qp = lrintf(q);
    1707           0 :                 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
    1708           0 :                     qp_histogram[qp]++;
    1709           0 :                 for (j = 0; j < 32; j++)
    1710           0 :                     av_bprintf(&buf, "%X", av_log2(qp_histogram[j] + 1));
    1711             :             }
    1712             : 
    1713        4498 :             if ((enc->flags & AV_CODEC_FLAG_PSNR) && (ost->pict_type != AV_PICTURE_TYPE_NONE || is_last_report)) {
    1714             :                 int j;
    1715           0 :                 double error, error_sum = 0;
    1716           0 :                 double scale, scale_sum = 0;
    1717             :                 double p;
    1718           0 :                 char type[3] = { 'Y','U','V' };
    1719           0 :                 av_bprintf(&buf, "PSNR=");
    1720           0 :                 for (j = 0; j < 3; j++) {
    1721           0 :                     if (is_last_report) {
    1722           0 :                         error = enc->error[j];
    1723           0 :                         scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
    1724             :                     } else {
    1725           0 :                         error = ost->error[j];
    1726           0 :                         scale = enc->width * enc->height * 255.0 * 255.0;
    1727             :                     }
    1728           0 :                     if (j)
    1729           0 :                         scale /= 4;
    1730           0 :                     error_sum += error;
    1731           0 :                     scale_sum += scale;
    1732           0 :                     p = psnr(error / scale);
    1733           0 :                     av_bprintf(&buf, "%c:%2.2f ", type[j], p);
    1734           0 :                     av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
    1735           0 :                                ost->file_index, ost->index, type[j] | 32, p);
    1736             :                 }
    1737           0 :                 p = psnr(error_sum / scale_sum);
    1738           0 :                 av_bprintf(&buf, "*:%2.2f ", psnr(error_sum / scale_sum));
    1739           0 :                 av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
    1740             :                            ost->file_index, ost->index, p);
    1741             :             }
    1742        4498 :             vid = 1;
    1743             :         }
    1744             :         /* compute min output value */
    1745        5718 :         if (av_stream_get_end_pts(ost->st) != AV_NOPTS_VALUE)
    1746        5718 :             pts = FFMAX(pts, av_rescale_q(av_stream_get_end_pts(ost->st),
    1747             :                                           ost->st->time_base, AV_TIME_BASE_Q));
    1748        5718 :         if (is_last_report)
    1749        5714 :             nb_frames_drop += ost->last_dropped;
    1750             :     }
    1751             : 
    1752        5579 :     secs = FFABS(pts) / AV_TIME_BASE;
    1753        5579 :     us = FFABS(pts) % AV_TIME_BASE;
    1754        5579 :     mins = secs / 60;
    1755        5579 :     secs %= 60;
    1756        5579 :     hours = mins / 60;
    1757        5579 :     mins %= 60;
    1758        5579 :     hours_sign = (pts < 0) ? "-" : "";
    1759             : 
    1760        5579 :     bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
    1761        5579 :     speed = t != 0.0 ? (double)pts / AV_TIME_BASE / t : -1;
    1762             : 
    1763        5579 :     if (total_size < 0) av_bprintf(&buf, "size=N/A time=");
    1764        5531 :     else                av_bprintf(&buf, "size=%8.0fkB time=", total_size / 1024.0);
    1765        5579 :     if (pts == AV_NOPTS_VALUE) {
    1766           0 :         av_bprintf(&buf, "N/A ");
    1767             :     } else {
    1768        5579 :         av_bprintf(&buf, "%s%02d:%02d:%02d.%02d ",
    1769        5579 :                    hours_sign, hours, mins, secs, (100 * us) / AV_TIME_BASE);
    1770             :     }
    1771             : 
    1772        5579 :     if (bitrate < 0) {
    1773          59 :         av_bprintf(&buf, "bitrate=N/A");
    1774          59 :         av_bprintf(&buf_script, "bitrate=N/A\n");
    1775             :     }else{
    1776        5520 :         av_bprintf(&buf, "bitrate=%6.1fkbits/s", bitrate);
    1777        5520 :         av_bprintf(&buf_script, "bitrate=%6.1fkbits/s\n", bitrate);
    1778             :     }
    1779             : 
    1780        5579 :     if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
    1781        5531 :     else                av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
    1782        5579 :     if (pts == AV_NOPTS_VALUE) {
    1783           0 :         av_bprintf(&buf_script, "out_time_ms=N/A\n");
    1784           0 :         av_bprintf(&buf_script, "out_time=N/A\n");
    1785             :     } else {
    1786        5579 :         av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
    1787        5579 :         av_bprintf(&buf_script, "out_time=%s%02d:%02d:%02d.%06d\n",
    1788             :                    hours_sign, hours, mins, secs, us);
    1789             :     }
    1790             : 
    1791        5579 :     if (nb_frames_dup || nb_frames_drop)
    1792          27 :         av_bprintf(&buf, " dup=%d drop=%d", nb_frames_dup, nb_frames_drop);
    1793        5579 :     av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
    1794        5579 :     av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
    1795             : 
    1796        5579 :     if (speed < 0) {
    1797           1 :         av_bprintf(&buf, " speed=N/A");
    1798           1 :         av_bprintf(&buf_script, "speed=N/A\n");
    1799             :     } else {
    1800        5578 :         av_bprintf(&buf, " speed=%4.3gx", speed);
    1801        5578 :         av_bprintf(&buf_script, "speed=%4.3gx\n", speed);
    1802             :     }
    1803             : 
    1804        5579 :     if (print_stats || is_last_report) {
    1805        5579 :         const char end = is_last_report ? '\n' : '\r';
    1806        5579 :         if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
    1807           0 :             fprintf(stderr, "%s    %c", buf.str, end);
    1808             :         } else
    1809        5579 :             av_log(NULL, AV_LOG_INFO, "%s    %c", buf.str, end);
    1810             : 
    1811        5579 :     fflush(stderr);
    1812             :     }
    1813        5579 :     av_bprint_finalize(&buf, NULL);
    1814             : 
    1815        5579 :     if (progress_avio) {
    1816           0 :         av_bprintf(&buf_script, "progress=%s\n",
    1817             :                    is_last_report ? "end" : "continue");
    1818           0 :         avio_write(progress_avio, buf_script.str,
    1819           0 :                    FFMIN(buf_script.len, buf_script.size - 1));
    1820           0 :         avio_flush(progress_avio);
    1821           0 :         av_bprint_finalize(&buf_script, NULL);
    1822           0 :         if (is_last_report) {
    1823           0 :             if ((ret = avio_closep(&progress_avio)) < 0)
    1824           0 :                 av_log(NULL, AV_LOG_ERROR,
    1825           0 :                        "Error closing progress log, loss of information possible: %s\n", av_err2str(ret));
    1826             :         }
    1827             :     }
    1828             : 
    1829        5579 :     if (is_last_report)
    1830        5575 :         print_final_stats(total_size);
    1831             : }
    1832             : 
    1833           0 : static void ifilter_parameters_from_codecpar(InputFilter *ifilter, AVCodecParameters *par)
    1834             : {
    1835             :     // We never got any input. Set a fake format, which will
    1836             :     // come from libavformat.
    1837           0 :     ifilter->format                 = par->format;
    1838           0 :     ifilter->sample_rate            = par->sample_rate;
    1839           0 :     ifilter->channels               = par->channels;
    1840           0 :     ifilter->channel_layout         = par->channel_layout;
    1841           0 :     ifilter->width                  = par->width;
    1842           0 :     ifilter->height                 = par->height;
    1843           0 :     ifilter->sample_aspect_ratio    = par->sample_aspect_ratio;
    1844           0 : }
    1845             : 
    1846        5575 : static void flush_encoders(void)
    1847             : {
    1848             :     int i, ret;
    1849             : 
    1850       11289 :     for (i = 0; i < nb_output_streams; i++) {
    1851        5714 :         OutputStream   *ost = output_streams[i];
    1852        5714 :         AVCodecContext *enc = ost->enc_ctx;
    1853        5714 :         OutputFile      *of = output_files[ost->file_index];
    1854             : 
    1855        5714 :         if (!ost->encoding_needed)
    1856         235 :             continue;
    1857             : 
    1858             :         // Try to enable encoding with no input frames.
    1859             :         // Maybe we should just let encoding fail instead.
    1860        5479 :         if (!ost->initialized) {
    1861           0 :             FilterGraph *fg = ost->filter->graph;
    1862           0 :             char error[1024] = "";
    1863             : 
    1864           0 :             av_log(NULL, AV_LOG_WARNING,
    1865             :                    "Finishing stream %d:%d without any data written to it.\n",
    1866           0 :                    ost->file_index, ost->st->index);
    1867             : 
    1868           0 :             if (ost->filter && !fg->graph) {
    1869             :                 int x;
    1870           0 :                 for (x = 0; x < fg->nb_inputs; x++) {
    1871           0 :                     InputFilter *ifilter = fg->inputs[x];
    1872           0 :                     if (ifilter->format < 0)
    1873           0 :                         ifilter_parameters_from_codecpar(ifilter, ifilter->ist->st->codecpar);
    1874             :                 }
    1875             : 
    1876           0 :                 if (!ifilter_has_all_input_formats(fg))
    1877           0 :                     continue;
    1878             : 
    1879           0 :                 ret = configure_filtergraph(fg);
    1880           0 :                 if (ret < 0) {
    1881           0 :                     av_log(NULL, AV_LOG_ERROR, "Error configuring filter graph\n");
    1882           0 :                     exit_program(1);
    1883             :                 }
    1884             : 
    1885           0 :                 finish_output_stream(ost);
    1886             :             }
    1887             : 
    1888           0 :             ret = init_output_stream(ost, error, sizeof(error));
    1889           0 :             if (ret < 0) {
    1890           0 :                 av_log(NULL, AV_LOG_ERROR, "Error initializing output stream %d:%d -- %s\n",
    1891             :                        ost->file_index, ost->index, error);
    1892           0 :                 exit_program(1);
    1893             :             }
    1894             :         }
    1895             : 
    1896        5479 :         if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
    1897         983 :             continue;
    1898             : 
    1899        4496 :         if (enc->codec_type != AVMEDIA_TYPE_VIDEO && enc->codec_type != AVMEDIA_TYPE_AUDIO)
    1900          30 :             continue;
    1901             : 
    1902         230 :         for (;;) {
    1903        4696 :             const char *desc = NULL;
    1904             :             AVPacket pkt;
    1905             :             int pkt_size;
    1906             : 
    1907        4696 :             switch (enc->codec_type) {
    1908         122 :             case AVMEDIA_TYPE_AUDIO:
    1909         122 :                 desc   = "audio";
    1910         122 :                 break;
    1911        4574 :             case AVMEDIA_TYPE_VIDEO:
    1912        4574 :                 desc   = "video";
    1913        4574 :                 break;
    1914           0 :             default:
    1915           0 :                 av_assert0(0);
    1916             :             }
    1917             : 
    1918        4696 :                 av_init_packet(&pkt);
    1919        4696 :                 pkt.data = NULL;
    1920        4696 :                 pkt.size = 0;
    1921             : 
    1922        4696 :                 update_benchmark(NULL);
    1923             : 
    1924        4696 :                 while ((ret = avcodec_receive_packet(enc, &pkt)) == AVERROR(EAGAIN)) {
    1925        4466 :                     ret = avcodec_send_frame(enc, NULL);
    1926        4466 :                     if (ret < 0) {
    1927           0 :                         av_log(NULL, AV_LOG_FATAL, "%s encoding failed: %s\n",
    1928             :                                desc,
    1929           0 :                                av_err2str(ret));
    1930           0 :                         exit_program(1);
    1931             :                     }
    1932             :                 }
    1933             : 
    1934        4696 :                 update_benchmark("flush_%s %d.%d", desc, ost->file_index, ost->index);
    1935        4696 :                 if (ret < 0 && ret != AVERROR_EOF) {
    1936           0 :                     av_log(NULL, AV_LOG_FATAL, "%s encoding failed: %s\n",
    1937             :                            desc,
    1938           0 :                            av_err2str(ret));
    1939           0 :                     exit_program(1);
    1940             :                 }
    1941        4696 :                 if (ost->logfile && enc->stats_out) {
    1942           0 :                     fprintf(ost->logfile, "%s", enc->stats_out);
    1943             :                 }
    1944        4696 :                 if (ret == AVERROR_EOF) {
    1945        4466 :                     output_packet(of, &pkt, ost, 1);
    1946        4466 :                     break;
    1947             :                 }
    1948         230 :                 if (ost->finished & MUXER_FINISHED) {
    1949           0 :                     av_packet_unref(&pkt);
    1950           0 :                     continue;
    1951             :                 }
    1952         230 :                 av_packet_rescale_ts(&pkt, enc->time_base, ost->mux_timebase);
    1953         230 :                 pkt_size = pkt.size;
    1954         230 :                 output_packet(of, &pkt, ost, 0);
    1955         230 :                 if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO && vstats_filename) {
    1956           0 :                     do_video_stats(ost, pkt_size);
    1957             :                 }
    1958             :         }
    1959             :     }
    1960        5575 : }
    1961             : 
    1962             : /*
    1963             :  * Check whether a packet from ist should be written into ost at this time
    1964             :  */
    1965      409666 : static int check_output_constraints(InputStream *ist, OutputStream *ost)
    1966             : {
    1967      409666 :     OutputFile *of = output_files[ost->file_index];
    1968      409666 :     int ist_index  = input_files[ist->file_index]->ist_index + ist->st->index;
    1969             : 
    1970      409666 :     if (ost->source_index != ist_index)
    1971       16943 :         return 0;
    1972             : 
    1973      392723 :     if (ost->finished)
    1974        2649 :         return 0;
    1975             : 
    1976      390074 :     if (of->start_time != AV_NOPTS_VALUE && ist->pts < of->start_time)
    1977           0 :         return 0;
    1978             : 
    1979      390074 :     return 1;
    1980             : }
    1981             : 
    1982       28995 : static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
    1983             : {
    1984       28995 :     OutputFile *of = output_files[ost->file_index];
    1985       28995 :     InputFile   *f = input_files [ist->file_index];
    1986       28995 :     int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
    1987       28995 :     int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->mux_timebase);
    1988       28995 :     AVPacket opkt = { 0 };
    1989             : 
    1990       28995 :     av_init_packet(&opkt);
    1991             : 
    1992             :     // EOF: flush output bitstream filters.
    1993       28995 :     if (!pkt) {
    1994           0 :         output_packet(of, &opkt, ost, 1);
    1995           0 :         return;
    1996             :     }
    1997             : 
    1998       29006 :     if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
    1999          11 :         !ost->copy_initial_nonkeyframes)
    2000          11 :         return;
    2001             : 
    2002       28984 :     if (!ost->frame_number && !ost->copy_prior_start) {
    2003           0 :         int64_t comp_start = start_time;
    2004           0 :         if (copy_ts && f->start_time != AV_NOPTS_VALUE)
    2005           0 :             comp_start = FFMAX(start_time, f->start_time + f->ts_offset);
    2006           0 :         if (pkt->pts == AV_NOPTS_VALUE ?
    2007           0 :             ist->pts < comp_start :
    2008           0 :             pkt->pts < av_rescale_q(comp_start, AV_TIME_BASE_Q, ist->st->time_base))
    2009           0 :             return;
    2010             :     }
    2011             : 
    2012       29400 :     if (of->recording_time != INT64_MAX &&
    2013         416 :         ist->pts >= of->recording_time + start_time) {
    2014           5 :         close_output_stream(ost);
    2015           5 :         return;
    2016             :     }
    2017             : 
    2018       28979 :     if (f->recording_time != INT64_MAX) {
    2019         148 :         start_time = f->ctx->start_time;
    2020         148 :         if (f->start_time != AV_NOPTS_VALUE && copy_ts)
    2021          74 :             start_time += f->start_time;
    2022         148 :         if (ist->pts >= f->recording_time + start_time) {
    2023           2 :             close_output_stream(ost);
    2024           2 :             return;
    2025             :         }
    2026             :     }
    2027             : 
    2028             :     /* force the input stream PTS */
    2029       28977 :     if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
    2030        8294 :         ost->sync_opts++;
    2031             : 
    2032       28977 :     if (pkt->pts != AV_NOPTS_VALUE)
    2033       24011 :         opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->mux_timebase) - ost_tb_start_time;
    2034             :     else
    2035        4966 :         opkt.pts = AV_NOPTS_VALUE;
    2036             : 
    2037       28977 :     if (pkt->dts == AV_NOPTS_VALUE)
    2038        4714 :         opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->mux_timebase);
    2039             :     else
    2040       24263 :         opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->mux_timebase);
    2041       28977 :     opkt.dts -= ost_tb_start_time;
    2042             : 
    2043       28977 :     if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
    2044       20153 :         int duration = av_get_audio_frame_duration(ist->dec_ctx, pkt->size);
    2045       20153 :         if(!duration)
    2046        7408 :             duration = ist->dec_ctx->frame_size;
    2047       60459 :         opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
    2048       20153 :                                                (AVRational){1, ist->dec_ctx->sample_rate}, duration, &ist->filter_in_rescale_delta_last,
    2049       20153 :                                                ost->mux_timebase) - ost_tb_start_time;
    2050             :     }
    2051             : 
    2052       28977 :     opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->mux_timebase);
    2053             : 
    2054       28977 :     opkt.flags    = pkt->flags;
    2055             : 
    2056       28977 :     if (pkt->buf) {
    2057       28977 :         opkt.buf = av_buffer_ref(pkt->buf);
    2058       28977 :         if (!opkt.buf)
    2059           0 :             exit_program(1);
    2060             :     }
    2061       28977 :     opkt.data = pkt->data;
    2062       28977 :     opkt.size = pkt->size;
    2063             : 
    2064       28977 :     av_copy_packet_side_data(&opkt, pkt);
    2065             : 
    2066       28977 :     output_packet(of, &opkt, ost, 0);
    2067             : }
    2068             : 
    2069        1300 : int guess_input_channel_layout(InputStream *ist)
    2070             : {
    2071        1300 :     AVCodecContext *dec = ist->dec_ctx;
    2072             : 
    2073        1300 :     if (!dec->channel_layout) {
    2074             :         char layout_name[256];
    2075             : 
    2076         732 :         if (dec->channels > ist->guess_layout_max)
    2077           6 :             return 0;
    2078         729 :         dec->channel_layout = av_get_default_channel_layout(dec->channels);
    2079         729 :         if (!dec->channel_layout)
    2080           0 :             return 0;
    2081         729 :         av_get_channel_layout_string(layout_name, sizeof(layout_name),
    2082             :                                      dec->channels, dec->channel_layout);
    2083         729 :         av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
    2084         729 :                "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
    2085             :     }
    2086        1297 :     return 1;
    2087             : }
    2088             : 
    2089      738595 : static void check_decode_result(InputStream *ist, int *got_output, int ret)
    2090             : {
    2091      738595 :     if (*got_output || ret<0)
    2092      381224 :         decode_error_stat[ret<0] ++;
    2093             : 
    2094      738595 :     if (ret < 0 && exit_on_error)
    2095           0 :         exit_program(1);
    2096             : 
    2097      738595 :     if (exit_on_error && *got_output && ist) {
    2098           0 :         if (ist->decoded_frame->decode_error_flags || (ist->decoded_frame->flags & AV_FRAME_FLAG_CORRUPT)) {
    2099           0 :             av_log(NULL, AV_LOG_FATAL, "%s: corrupt decoded frame in stream %d\n", input_files[ist->file_index]->ctx->url, ist->st->index);
    2100           0 :             exit_program(1);
    2101             :         }
    2102             :     }
    2103      738595 : }
    2104             : 
    2105             : // Filters can be configured only if the formats of all inputs are known.
    2106      925734 : static int ifilter_has_all_input_formats(FilterGraph *fg)
    2107             : {
    2108             :     int i;
    2109      971367 :     for (i = 0; i < fg->nb_inputs; i++) {
    2110     1886070 :         if (fg->inputs[i]->format < 0 && (fg->inputs[i]->type == AVMEDIA_TYPE_AUDIO ||
    2111      920208 :                                           fg->inputs[i]->type == AVMEDIA_TYPE_VIDEO))
    2112      920229 :             return 0;
    2113             :     }
    2114        5505 :     return 1;
    2115             : }
    2116             : 
    2117      380553 : static int ifilter_send_frame(InputFilter *ifilter, AVFrame *frame)
    2118             : {
    2119      380553 :     FilterGraph *fg = ifilter->graph;
    2120             :     int need_reinit, ret, i;
    2121             : 
    2122             :     /* determine if the parameters for this input changed */
    2123      380553 :     need_reinit = ifilter->format != frame->format;
    2124      761106 :     if (!!ifilter->hw_frames_ctx != !!frame->hw_frames_ctx ||
    2125      380553 :         (ifilter->hw_frames_ctx && ifilter->hw_frames_ctx->data != frame->hw_frames_ctx->data))
    2126           0 :         need_reinit = 1;
    2127             : 
    2128      380553 :     switch (ifilter->ist->st->codecpar->codec_type) {
    2129      284003 :     case AVMEDIA_TYPE_AUDIO:
    2130      850937 :         need_reinit |= ifilter->sample_rate    != frame->sample_rate ||
    2131      566933 :                        ifilter->channels       != frame->channels ||
    2132      282930 :                        ifilter->channel_layout != frame->channel_layout;
    2133      284003 :         break;
    2134       96550 :     case AVMEDIA_TYPE_VIDEO:
    2135      188717 :         need_reinit |= ifilter->width  != frame->width ||
    2136       92167 :                        ifilter->height != frame->height;
    2137       96550 :         break;
    2138             :     }
    2139             : 
    2140      380553 :     if (need_reinit) {
    2141        5469 :         ret = ifilter_parameters_from_frame(ifilter, frame);
    2142        5469 :         if (ret < 0)
    2143           0 :             return ret;
    2144             :     }
    2145             : 
    2146             :     /* (re)init the graph if possible, otherwise buffer the frame and return */
    2147      380553 :     if (need_reinit || !fg->graph) {
    2148       10940 :         for (i = 0; i < fg->nb_inputs; i++) {
    2149        5490 :             if (!ifilter_has_all_input_formats(fg)) {
    2150          19 :                 AVFrame *tmp = av_frame_clone(frame);
    2151          19 :                 if (!tmp)
    2152           0 :                     return AVERROR(ENOMEM);
    2153          19 :                 av_frame_unref(frame);
    2154             : 
    2155          19 :                 if (!av_fifo_space(ifilter->frame_queue)) {
    2156           0 :                     ret = av_fifo_realloc2(ifilter->frame_queue, 2 * av_fifo_size(ifilter->frame_queue));
    2157           0 :                     if (ret < 0) {
    2158           0 :                         av_frame_free(&tmp);
    2159           0 :                         return ret;
    2160             :                     }
    2161             :                 }
    2162          19 :                 av_fifo_generic_write(ifilter->frame_queue, &tmp, sizeof(tmp), NULL);
    2163          19 :                 return 0;
    2164             :             }
    2165             :         }
    2166             : 
    2167        5450 :         ret = reap_filters(1);
    2168        5450 :         if (ret < 0 && ret != AVERROR_EOF) {
    2169           0 :             av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", av_err2str(ret));
    2170           0 :             return ret;
    2171             :         }
    2172             : 
    2173        5450 :         ret = configure_filtergraph(fg);
    2174        5450 :         if (ret < 0) {
    2175           0 :             av_log(NULL, AV_LOG_ERROR, "Error reinitializing filters!\n");
    2176           0 :             return ret;
    2177             :         }
    2178             :     }
    2179             : 
    2180      380534 :     ret = av_buffersrc_add_frame_flags(ifilter->filter, frame, AV_BUFFERSRC_FLAG_PUSH);
    2181      380534 :     if (ret < 0) {
    2182           0 :         if (ret != AVERROR_EOF)
    2183           0 :             av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", av_err2str(ret));
    2184           0 :         return ret;
    2185             :     }
    2186             : 
    2187      380534 :     return 0;
    2188             : }
    2189             : 
    2190        5423 : static int ifilter_send_eof(InputFilter *ifilter, int64_t pts)
    2191             : {
    2192             :     int ret;
    2193             : 
    2194        5423 :     ifilter->eof = 1;
    2195             : 
    2196        5423 :     if (ifilter->filter) {
    2197        5423 :         ret = av_buffersrc_close(ifilter->filter, pts, AV_BUFFERSRC_FLAG_PUSH);
    2198        5423 :         if (ret < 0)
    2199           0 :             return ret;
    2200             :     } else {
    2201             :         // the filtergraph was never configured
    2202           0 :         if (ifilter->format < 0)
    2203           0 :             ifilter_parameters_from_codecpar(ifilter, ifilter->ist->st->codecpar);
    2204           0 :         if (ifilter->format < 0 && (ifilter->type == AVMEDIA_TYPE_AUDIO || ifilter->type == AVMEDIA_TYPE_VIDEO)) {
    2205           0 :             av_log(NULL, AV_LOG_ERROR, "Cannot determine format of input stream %d:%d after EOF\n", ifilter->ist->file_index, ifilter->ist->st->index);
    2206           0 :             return AVERROR_INVALIDDATA;
    2207             :         }
    2208             :     }
    2209             : 
    2210        5423 :     return 0;
    2211             : }
    2212             : 
    2213             : // This does not quite work like avcodec_decode_audio4/avcodec_decode_video2.
    2214             : // There is the following difference: if you got a frame, you must call
    2215             : // it again with pkt=NULL. pkt==NULL is treated differently from pkt->size==0
    2216             : // (pkt==NULL means get more output, pkt->size==0 is a flush/drain packet)
    2217      742848 : static int decode(AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *pkt)
    2218             : {
    2219             :     int ret;
    2220             : 
    2221      742848 :     *got_frame = 0;
    2222             : 
    2223      742848 :     if (pkt) {
    2224      363359 :         ret = avcodec_send_packet(avctx, pkt);
    2225             :         // In particular, we don't expect AVERROR(EAGAIN), because we read all
    2226             :         // decoded frames with avcodec_receive_frame() until done.
    2227      363359 :         if (ret < 0 && ret != AVERROR_EOF)
    2228         379 :             return ret;
    2229             :     }
    2230             : 
    2231      742469 :     ret = avcodec_receive_frame(avctx, frame);
    2232      742469 :     if (ret < 0 && ret != AVERROR(EAGAIN))
    2233        5425 :         return ret;
    2234      737044 :     if (ret >= 0)
    2235      380165 :         *got_frame = 1;
    2236             : 
    2237      737044 :     return 0;
    2238             : }
    2239             : 
    2240      380165 : static int send_frame_to_filters(InputStream *ist, AVFrame *decoded_frame)
    2241             : {
    2242             :     int i, ret;
    2243             :     AVFrame *f;
    2244             : 
    2245             :     av_assert1(ist->nb_filters > 0); /* ensure ret is initialized */
    2246      760718 :     for (i = 0; i < ist->nb_filters; i++) {
    2247      380553 :         if (i < ist->nb_filters - 1) {
    2248         388 :             f = ist->filter_frame;
    2249         388 :             ret = av_frame_ref(f, decoded_frame);
    2250         388 :             if (ret < 0)
    2251           0 :                 break;
    2252             :         } else
    2253      380165 :             f = decoded_frame;
    2254      380553 :         ret = ifilter_send_frame(ist->filters[i], f);
    2255      380553 :         if (ret == AVERROR_EOF)
    2256           0 :             ret = 0; /* ignore */
    2257      380553 :         if (ret < 0) {
    2258           0 :             av_log(NULL, AV_LOG_ERROR,
    2259           0 :                    "Failed to inject frame into filter network: %s\n", av_err2str(ret));
    2260           0 :             break;
    2261             :         }
    2262             :     }
    2263      380165 :     return ret;
    2264             : }
    2265             : 
    2266      541525 : static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output,
    2267             :                         int *decode_failed)
    2268             : {
    2269             :     AVFrame *decoded_frame;
    2270      541525 :     AVCodecContext *avctx = ist->dec_ctx;
    2271      541525 :     int ret, err = 0;
    2272             :     AVRational decoded_frame_tb;
    2273             : 
    2274      541525 :     if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
    2275           0 :         return AVERROR(ENOMEM);
    2276      541525 :     if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
    2277           0 :         return AVERROR(ENOMEM);
    2278      541525 :     decoded_frame = ist->decoded_frame;
    2279             : 
    2280      541525 :     update_benchmark(NULL);
    2281      541525 :     ret = decode(avctx, decoded_frame, got_output, pkt);
    2282      541525 :     update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
    2283      541525 :     if (ret < 0)
    2284        1080 :         *decode_failed = 1;
    2285             : 
    2286      541525 :     if (ret >= 0 && avctx->sample_rate <= 0) {
    2287           0 :         av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
    2288           0 :         ret = AVERROR_INVALIDDATA;
    2289             :     }
    2290             : 
    2291      541525 :     if (ret != AVERROR_EOF)
    2292      540455 :         check_decode_result(ist, got_output, ret);
    2293             : 
    2294      541525 :     if (!*got_output || ret < 0)
    2295      257910 :         return ret;
    2296             : 
    2297      283615 :     ist->samples_decoded += decoded_frame->nb_samples;
    2298      283615 :     ist->frames_decoded++;
    2299             : 
    2300             : #if 1
    2301             :     /* increment next_dts to use for the case where the input stream does not
    2302             :        have timestamps or there are multiple frames in the packet */
    2303      567230 :     ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
    2304      283615 :                      avctx->sample_rate;
    2305      567230 :     ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
    2306      283615 :                      avctx->sample_rate;
    2307             : #endif
    2308             : 
    2309      283615 :     if (decoded_frame->pts != AV_NOPTS_VALUE) {
    2310      255711 :         decoded_frame_tb   = ist->st->time_base;
    2311       27904 :     } else if (pkt && pkt->pts != AV_NOPTS_VALUE) {
    2312           3 :         decoded_frame->pts = pkt->pts;
    2313           3 :         decoded_frame_tb   = ist->st->time_base;
    2314             :     }else {
    2315       27901 :         decoded_frame->pts = ist->dts;
    2316       27901 :         decoded_frame_tb   = AV_TIME_BASE_Q;
    2317             :     }
    2318      283615 :     if (decoded_frame->pts != AV_NOPTS_VALUE)
    2319      567230 :         decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
    2320      283615 :                                               (AVRational){1, avctx->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
    2321      283615 :                                               (AVRational){1, avctx->sample_rate});
    2322      283615 :     ist->nb_samples = decoded_frame->nb_samples;
    2323      283615 :     err = send_frame_to_filters(ist, decoded_frame);
    2324             : 
    2325      283615 :     av_frame_unref(ist->filter_frame);
    2326      283615 :     av_frame_unref(decoded_frame);
    2327      283615 :     return err < 0 ? err : ret;
    2328             : }
    2329             : 
    2330      202868 : static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output, int64_t *duration_pts, int eof,
    2331             :                         int *decode_failed)
    2332             : {
    2333             :     AVFrame *decoded_frame;
    2334      202868 :     int i, ret = 0, err = 0;
    2335             :     int64_t best_effort_timestamp;
    2336      202868 :     int64_t dts = AV_NOPTS_VALUE;
    2337             :     AVPacket avpkt;
    2338             : 
    2339             :     // With fate-indeo3-2, we're getting 0-sized packets before EOF for some
    2340             :     // reason. This seems like a semi-critical bug. Don't trigger EOF, and
    2341             :     // skip the packet.
    2342      202868 :     if (!eof && pkt && pkt->size == 0)
    2343        1545 :         return 0;
    2344             : 
    2345      201323 :     if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
    2346           0 :         return AVERROR(ENOMEM);
    2347      201323 :     if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
    2348           0 :         return AVERROR(ENOMEM);
    2349      201323 :     decoded_frame = ist->decoded_frame;
    2350      201323 :     if (ist->dts != AV_NOPTS_VALUE)
    2351      200912 :         dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
    2352      201323 :     if (pkt) {
    2353      105421 :         avpkt = *pkt;
    2354      105421 :         avpkt.dts = dts; // ffmpeg.c probably shouldn't do this
    2355             :     }
    2356             : 
    2357             :     // The old code used to set dts on the drain packet, which does not work
    2358             :     // with the new API anymore.
    2359      201323 :     if (eof) {
    2360        4998 :         void *new = av_realloc_array(ist->dts_buffer, ist->nb_dts_buffer + 1, sizeof(ist->dts_buffer[0]));
    2361        4998 :         if (!new)
    2362           0 :             return AVERROR(ENOMEM);
    2363        4998 :         ist->dts_buffer = new;
    2364        4998 :         ist->dts_buffer[ist->nb_dts_buffer++] = dts;
    2365             :     }
    2366             : 
    2367      201323 :     update_benchmark(NULL);
    2368      201323 :     ret = decode(ist->dec_ctx, decoded_frame, got_output, pkt ? &avpkt : NULL);
    2369      201323 :     update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
    2370      201323 :     if (ret < 0)
    2371        4724 :         *decode_failed = 1;
    2372             : 
    2373             :     // The following line may be required in some cases where there is no parser
    2374             :     // or the parser does not has_b_frames correctly
    2375      201323 :     if (ist->st->codecpar->video_delay < ist->dec_ctx->has_b_frames) {
    2376           2 :         if (ist->dec_ctx->codec_id == AV_CODEC_ID_H264) {
    2377           2 :             ist->st->codecpar->video_delay = ist->dec_ctx->has_b_frames;
    2378             :         } else
    2379           0 :             av_log(ist->dec_ctx, AV_LOG_WARNING,
    2380             :                    "video_delay is larger in decoder than demuxer %d > %d.\n"
    2381             :                    "If you want to help, upload a sample "
    2382             :                    "of this file to ftp://upload.ffmpeg.org/incoming/ "
    2383             :                    "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n",
    2384           0 :                    ist->dec_ctx->has_b_frames,
    2385           0 :                    ist->st->codecpar->video_delay);
    2386             :     }
    2387             : 
    2388      201323 :     if (ret != AVERROR_EOF)
    2389      196973 :         check_decode_result(ist, got_output, ret);
    2390             : 
    2391      201323 :     if (*got_output && ret >= 0) {
    2392      193091 :         if (ist->dec_ctx->width  != decoded_frame->width ||
    2393      193080 :             ist->dec_ctx->height != decoded_frame->height ||
    2394       96539 :             ist->dec_ctx->pix_fmt != decoded_frame->format) {
    2395          30 :             av_log(NULL, AV_LOG_DEBUG, "Frame parameters mismatch context %d,%d,%d != %d,%d,%d\n",
    2396             :                 decoded_frame->width,
    2397             :                 decoded_frame->height,
    2398             :                 decoded_frame->format,
    2399          15 :                 ist->dec_ctx->width,
    2400          15 :                 ist->dec_ctx->height,
    2401          15 :                 ist->dec_ctx->pix_fmt);
    2402             :         }
    2403             :     }
    2404             : 
    2405      201323 :     if (!*got_output || ret < 0)
    2406      104773 :         return ret;
    2407             : 
    2408       96550 :     if(ist->top_field_first>=0)
    2409           0 :         decoded_frame->top_field_first = ist->top_field_first;
    2410             : 
    2411       96550 :     ist->frames_decoded++;
    2412             : 
    2413       96550 :     if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
    2414           0 :         err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
    2415           0 :         if (err < 0)
    2416           0 :             goto fail;
    2417             :     }
    2418       96550 :     ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
    2419             : 
    2420       96550 :     best_effort_timestamp= decoded_frame->best_effort_timestamp;
    2421       96550 :     *duration_pts = decoded_frame->pkt_duration;
    2422             : 
    2423       96550 :     if (ist->framerate.num)
    2424         103 :         best_effort_timestamp = ist->cfr_next_pts++;
    2425             : 
    2426       96550 :     if (eof && best_effort_timestamp == AV_NOPTS_VALUE && ist->nb_dts_buffer > 0) {
    2427         521 :         best_effort_timestamp = ist->dts_buffer[0];
    2428             : 
    2429         521 :         for (i = 0; i < ist->nb_dts_buffer - 1; i++)
    2430           0 :             ist->dts_buffer[i] = ist->dts_buffer[i + 1];
    2431         521 :         ist->nb_dts_buffer--;
    2432             :     }
    2433             : 
    2434       96550 :     if(best_effort_timestamp != AV_NOPTS_VALUE) {
    2435       96550 :         int64_t ts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
    2436             : 
    2437       96550 :         if (ts != AV_NOPTS_VALUE)
    2438       96550 :             ist->next_pts = ist->pts = ts;
    2439             :     }
    2440             : 
    2441       96550 :     if (debug_ts) {
    2442           0 :         av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
    2443             :                "frame_pts:%s frame_pts_time:%s best_effort_ts:%"PRId64" best_effort_ts_time:%s keyframe:%d frame_type:%d time_base:%d/%d\n",
    2444           0 :                ist->st->index, av_ts2str(decoded_frame->pts),
    2445           0 :                av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
    2446             :                best_effort_timestamp,
    2447           0 :                av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
    2448           0 :                decoded_frame->key_frame, decoded_frame->pict_type,
    2449           0 :                ist->st->time_base.num, ist->st->time_base.den);
    2450             :     }
    2451             : 
    2452       96550 :     if (ist->st->sample_aspect_ratio.num)
    2453        4399 :         decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
    2454             : 
    2455       96550 :     err = send_frame_to_filters(ist, decoded_frame);
    2456             : 
    2457       96550 : fail:
    2458       96550 :     av_frame_unref(ist->filter_frame);
    2459       96550 :     av_frame_unref(decoded_frame);
    2460       96550 :     return err < 0 ? err : ret;
    2461             : }
    2462             : 
    2463        1167 : static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output,
    2464             :                                int *decode_failed)
    2465             : {
    2466             :     AVSubtitle subtitle;
    2467        1167 :     int free_sub = 1;
    2468        1167 :     int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
    2469             :                                           &subtitle, got_output, pkt);
    2470             : 
    2471        1167 :     check_decode_result(NULL, got_output, ret);
    2472             : 
    2473        1167 :     if (ret < 0 || !*got_output) {
    2474         571 :         *decode_failed = 1;
    2475         571 :         if (!pkt->size)
    2476          31 :             sub2video_flush(ist);
    2477         571 :         return ret;
    2478             :     }
    2479             : 
    2480         596 :     if (ist->fix_sub_duration) {
    2481           0 :         int end = 1;
    2482           0 :         if (ist->prev_sub.got_output) {
    2483           0 :             end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
    2484             :                              1000, AV_TIME_BASE);
    2485           0 :             if (end < ist->prev_sub.subtitle.end_display_time) {
    2486           0 :                 av_log(ist->dec_ctx, AV_LOG_DEBUG,
    2487             :                        "Subtitle duration reduced from %"PRId32" to %d%s\n",
    2488             :                        ist->prev_sub.subtitle.end_display_time, end,
    2489             :                        end <= 0 ? ", dropping it" : "");
    2490           0 :                 ist->prev_sub.subtitle.end_display_time = end;
    2491             :             }
    2492             :         }
    2493           0 :         FFSWAP(int,        *got_output, ist->prev_sub.got_output);
    2494           0 :         FFSWAP(int,        ret,         ist->prev_sub.ret);
    2495           0 :         FFSWAP(AVSubtitle, subtitle,    ist->prev_sub.subtitle);
    2496           0 :         if (end <= 0)
    2497           0 :             goto out;
    2498             :     }
    2499             : 
    2500         596 :     if (!*got_output)
    2501           0 :         return ret;
    2502             : 
    2503         596 :     if (ist->sub2video.frame) {
    2504          44 :         sub2video_update(ist, &subtitle);
    2505         552 :     } else if (ist->nb_filters) {
    2506           0 :         if (!ist->sub2video.sub_queue)
    2507           0 :             ist->sub2video.sub_queue = av_fifo_alloc(8 * sizeof(AVSubtitle));
    2508           0 :         if (!ist->sub2video.sub_queue)
    2509           0 :             exit_program(1);
    2510           0 :         if (!av_fifo_space(ist->sub2video.sub_queue)) {
    2511           0 :             ret = av_fifo_realloc2(ist->sub2video.sub_queue, 2 * av_fifo_size(ist->sub2video.sub_queue));
    2512           0 :             if (ret < 0)
    2513           0 :                 exit_program(1);
    2514             :         }
    2515           0 :         av_fifo_generic_write(ist->sub2video.sub_queue, &subtitle, sizeof(subtitle), NULL);
    2516           0 :         free_sub = 0;
    2517             :     }
    2518             : 
    2519         596 :     if (!subtitle.num_rects)
    2520           0 :         goto out;
    2521             : 
    2522         596 :     ist->frames_decoded++;
    2523             : 
    2524        1236 :     for (i = 0; i < nb_output_streams; i++) {
    2525         640 :         OutputStream *ost = output_streams[i];
    2526             : 
    2527         640 :         if (!check_output_constraints(ist, ost) || !ost->encoding_needed
    2528         595 :             || ost->enc->type != AVMEDIA_TYPE_SUBTITLE)
    2529          45 :             continue;
    2530             : 
    2531         595 :         do_subtitle_out(output_files[ost->file_index], ost, &subtitle);
    2532             :     }
    2533             : 
    2534         596 : out:
    2535         596 :     if (free_sub)
    2536         596 :         avsubtitle_free(&subtitle);
    2537         596 :     return ret;
    2538             : }
    2539             : 
    2540        5451 : static int send_filter_eof(InputStream *ist)
    2541             : {
    2542             :     int i, ret;
    2543             :     /* TODO keep pts also in stream time base to avoid converting back */
    2544        5451 :     int64_t pts = av_rescale_q_rnd(ist->pts, AV_TIME_BASE_Q, ist->st->time_base,
    2545             :                                    AV_ROUND_NEAR_INF | AV_ROUND_PASS_MINMAX);
    2546             : 
    2547       10874 :     for (i = 0; i < ist->nb_filters; i++) {
    2548        5423 :         ret = ifilter_send_eof(ist->filters[i], pts);
    2549        5423 :         if (ret < 0)
    2550           0 :             return ret;
    2551             :     }
    2552        5451 :     return 0;
    2553             : }
    2554             : 
    2555             : /* pkt = NULL means EOF (needed to flush decoder buffers) */
    2556      395150 : static int process_input_packet(InputStream *ist, const AVPacket *pkt, int no_eof)
    2557             : {
    2558      395150 :     int ret = 0, i;
    2559      395150 :     int repeating = 0;
    2560      395150 :     int eof_reached = 0;
    2561             : 
    2562             :     AVPacket avpkt;
    2563      395150 :     if (!ist->saw_first_ts) {
    2564        5725 :         ist->dts = ist->st->avg_frame_rate.num ? - ist->dec_ctx->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
    2565        5725 :         ist->pts = 0;
    2566        5725 :         if (pkt && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
    2567         158 :             ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
    2568         158 :             ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
    2569             :         }
    2570        5725 :         ist->saw_first_ts = 1;
    2571             :     }
    2572             : 
    2573      395150 :     if (ist->next_dts == AV_NOPTS_VALUE)
    2574        6139 :         ist->next_dts = ist->dts;
    2575      395150 :     if (ist->next_pts == AV_NOPTS_VALUE)
    2576        5725 :         ist->next_pts = ist->pts;
    2577             : 
    2578      395150 :     if (!pkt) {
    2579             :         /* EOF handling */
    2580        6189 :         av_init_packet(&avpkt);
    2581        6189 :         avpkt.data = NULL;
    2582        6189 :         avpkt.size = 0;
    2583             :     } else {
    2584      388961 :         avpkt = *pkt;
    2585             :     }
    2586             : 
    2587      395150 :     if (pkt && pkt->dts != AV_NOPTS_VALUE) {
    2588      353314 :         ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
    2589      353314 :         if (ist->dec_ctx->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
    2590      281199 :             ist->next_pts = ist->pts = ist->dts;
    2591             :     }
    2592             : 
    2593             :     // while we have more to decode or while the decoder did output something on EOF
    2594     1170385 :     while (ist->decoding_needed) {
    2595      746156 :         int64_t duration_dts = 0;
    2596      746156 :         int64_t duration_pts = 0;
    2597      746156 :         int got_output = 0;
    2598      746156 :         int decode_failed = 0;
    2599             : 
    2600      746156 :         ist->pts = ist->next_pts;
    2601      746156 :         ist->dts = ist->next_dts;
    2602             : 
    2603      746156 :         switch (ist->dec_ctx->codec_type) {
    2604      541525 :         case AVMEDIA_TYPE_AUDIO:
    2605      541525 :             ret = decode_audio    (ist, repeating ? NULL : &avpkt, &got_output,
    2606             :                                    &decode_failed);
    2607      541525 :             break;
    2608      202868 :         case AVMEDIA_TYPE_VIDEO:
    2609      202868 :             ret = decode_video    (ist, repeating ? NULL : &avpkt, &got_output, &duration_pts, !pkt,
    2610             :                                    &decode_failed);
    2611      202868 :             if (!repeating || !pkt || got_output) {
    2612      106966 :                 if (pkt && pkt->duration) {
    2613       99678 :                     duration_dts = av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
    2614        7288 :                 } else if(ist->dec_ctx->framerate.num != 0 && ist->dec_ctx->framerate.den != 0) {
    2615        6078 :                     int ticks= av_stream_get_parser(ist->st) ? av_stream_get_parser(ist->st)->repeat_pict+1 : ist->dec_ctx->ticks_per_frame;
    2616       12156 :                     duration_dts = ((int64_t)AV_TIME_BASE *
    2617       18234 :                                     ist->dec_ctx->framerate.den * ticks) /
    2618       12156 :                                     ist->dec_ctx->framerate.num / ist->dec_ctx->ticks_per_frame;
    2619             :                 }
    2620             : 
    2621      106966 :                 if(ist->dts != AV_NOPTS_VALUE && duration_dts) {
    2622      105756 :                     ist->next_dts += duration_dts;
    2623             :                 }else
    2624        1210 :                     ist->next_dts = AV_NOPTS_VALUE;
    2625             :             }
    2626             : 
    2627      202868 :             if (got_output) {
    2628       96550 :                 if (duration_pts > 0) {
    2629       94262 :                     ist->next_pts += av_rescale_q(duration_pts, ist->st->time_base, AV_TIME_BASE_Q);
    2630             :                 } else {
    2631        2288 :                     ist->next_pts += duration_dts;
    2632             :                 }
    2633             :             }
    2634      202868 :             break;
    2635        1763 :         case AVMEDIA_TYPE_SUBTITLE:
    2636        1763 :             if (repeating)
    2637         596 :                 break;
    2638        1167 :             ret = transcode_subtitles(ist, &avpkt, &got_output, &decode_failed);
    2639        1167 :             if (!pkt && ret >= 0)
    2640          31 :                 ret = AVERROR_EOF;
    2641        1167 :             break;
    2642           0 :         default:
    2643           0 :             return -1;
    2644             :         }
    2645             : 
    2646      746156 :         if (ret == AVERROR_EOF) {
    2647        5451 :             eof_reached = 1;
    2648      371522 :             break;
    2649             :         }
    2650             : 
    2651      740705 :         if (ret < 0) {
    2652         463 :             if (decode_failed) {
    2653         926 :                 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
    2654         926 :                        ist->file_index, ist->st->index, av_err2str(ret));
    2655             :             } else {
    2656           0 :                 av_log(NULL, AV_LOG_FATAL, "Error while processing the decoded "
    2657           0 :                        "data for stream #%d:%d\n", ist->file_index, ist->st->index);
    2658             :             }
    2659         463 :             if (!decode_failed || exit_on_error)
    2660           0 :                 exit_program(1);
    2661         463 :             break;
    2662             :         }
    2663             : 
    2664      740242 :         if (got_output)
    2665      380761 :             ist->got_output = 1;
    2666             : 
    2667      740242 :         if (!got_output)
    2668      359481 :             break;
    2669             : 
    2670             :         // During draining, we might get multiple output frames in this loop.
    2671             :         // ffmpeg.c does not drain the filter chain on configuration changes,
    2672             :         // which means if we send multiple frames at once to the filters, and
    2673             :         // one of those frames changes configuration, the buffered frames will
    2674             :         // be lost. This can upset certain FATE tests.
    2675             :         // Decode only 1 frame per call on EOF to appease these FATE tests.
    2676             :         // The ideal solution would be to rewrite decoding to use the new
    2677             :         // decoding API in a better way.
    2678      380761 :         if (!pkt)
    2679         676 :             break;
    2680             : 
    2681      380085 :         repeating = 1;
    2682             :     }
    2683             : 
    2684             :     /* after flushing, send an EOF on all the filter inputs attached to the stream */
    2685             :     /* except when looping we need to flush but not to send an EOF */
    2686      395150 :     if (!pkt && ist->decoding_needed && eof_reached && !no_eof) {
    2687        5451 :         int ret = send_filter_eof(ist);
    2688        5451 :         if (ret < 0) {
    2689           0 :             av_log(NULL, AV_LOG_FATAL, "Error marking filters as finished\n");
    2690           0 :             exit_program(1);
    2691             :         }
    2692             :     }
    2693             : 
    2694             :     /* handle stream copy */
    2695      395150 :     if (!ist->decoding_needed && pkt) {
    2696       29018 :         ist->dts = ist->next_dts;
    2697       29018 :         switch (ist->dec_ctx->codec_type) {
    2698       20181 :         case AVMEDIA_TYPE_AUDIO:
    2699       40362 :             ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
    2700       20181 :                              ist->dec_ctx->sample_rate;
    2701       20181 :             break;
    2702        8307 :         case AVMEDIA_TYPE_VIDEO:
    2703        8307 :             if (ist->framerate.num) {
    2704             :                 // TODO: Remove work-around for c99-to-c89 issue 7
    2705          79 :                 AVRational time_base_q = AV_TIME_BASE_Q;
    2706          79 :                 int64_t next_dts = av_rescale_q(ist->next_dts, time_base_q, av_inv_q(ist->framerate));
    2707          79 :                 ist->next_dts = av_rescale_q(next_dts + 1, av_inv_q(ist->framerate), time_base_q);
    2708        8228 :             } else if (pkt->duration) {
    2709        8001 :                 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
    2710         227 :             } else if(ist->dec_ctx->framerate.num != 0) {
    2711         119 :                 int ticks= av_stream_get_parser(ist->st) ? av_stream_get_parser(ist->st)->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
    2712         357 :                 ist->next_dts += ((int64_t)AV_TIME_BASE *
    2713         357 :                                   ist->dec_ctx->framerate.den * ticks) /
    2714         238 :                                   ist->dec_ctx->framerate.num / ist->dec_ctx->ticks_per_frame;
    2715             :             }
    2716        8307 :             break;
    2717             :         }
    2718       29018 :         ist->pts = ist->dts;
    2719       29018 :         ist->next_pts = ist->next_dts;
    2720             :     }
    2721      804176 :     for (i = 0; i < nb_output_streams; i++) {
    2722      409026 :         OutputStream *ost = output_streams[i];
    2723             : 
    2724      409026 :         if (!check_output_constraints(ist, ost) || ost->encoding_needed)
    2725      380031 :             continue;
    2726             : 
    2727       28995 :         do_streamcopy(ist, ost, pkt);
    2728             :     }
    2729             : 
    2730      395150 :     return !eof_reached;
    2731             : }
    2732             : 
    2733           0 : static void print_sdp(void)
    2734             : {
    2735             :     char sdp[16384];
    2736             :     int i;
    2737             :     int j;
    2738             :     AVIOContext *sdp_pb;
    2739             :     AVFormatContext **avc;
    2740             : 
    2741           0 :     for (i = 0; i < nb_output_files; i++) {
    2742           0 :         if (!output_files[i]->header_written)
    2743           0 :             return;
    2744             :     }
    2745             : 
    2746           0 :     avc = av_malloc_array(nb_output_files, sizeof(*avc));
    2747           0 :     if (!avc)
    2748           0 :         exit_program(1);
    2749           0 :     for (i = 0, j = 0; i < nb_output_files; i++) {
    2750           0 :         if (!strcmp(output_files[i]->ctx->oformat->name, "rtp")) {
    2751           0 :             avc[j] = output_files[i]->ctx;
    2752           0 :             j++;
    2753             :         }
    2754             :     }
    2755             : 
    2756           0 :     if (!j)
    2757           0 :         goto fail;
    2758             : 
    2759           0 :     av_sdp_create(avc, j, sdp, sizeof(sdp));
    2760             : 
    2761           0 :     if (!sdp_filename) {
    2762           0 :         printf("SDP:\n%s\n", sdp);
    2763           0 :         fflush(stdout);
    2764             :     } else {
    2765           0 :         if (avio_open2(&sdp_pb, sdp_filename, AVIO_FLAG_WRITE, &int_cb, NULL) < 0) {
    2766           0 :             av_log(NULL, AV_LOG_ERROR, "Failed to open sdp file '%s'\n", sdp_filename);
    2767             :         } else {
    2768           0 :             avio_printf(sdp_pb, "SDP:\n%s", sdp);
    2769           0 :             avio_closep(&sdp_pb);
    2770           0 :             av_freep(&sdp_filename);
    2771             :         }
    2772             :     }
    2773             : 
    2774           0 : fail:
    2775           0 :     av_freep(&avc);
    2776             : }
    2777             : 
    2778         915 : static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
    2779             : {
    2780         915 :     InputStream *ist = s->opaque;
    2781             :     const enum AVPixelFormat *p;
    2782             :     int ret;
    2783             : 
    2784         915 :     for (p = pix_fmts; *p != AV_PIX_FMT_NONE; p++) {
    2785         915 :         const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
    2786         915 :         const AVCodecHWConfig  *config = NULL;
    2787             :         int i;
    2788             : 
    2789         915 :         if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
    2790         915 :             break;
    2791             : 
    2792           0 :         if (ist->hwaccel_id == HWACCEL_GENERIC ||
    2793           0 :             ist->hwaccel_id == HWACCEL_AUTO) {
    2794           0 :             for (i = 0;; i++) {
    2795           0 :                 config = avcodec_get_hw_config(s->codec, i);
    2796           0 :                 if (!config)
    2797           0 :                     break;
    2798           0 :                 if (!(config->methods &
    2799             :                       AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX))
    2800           0 :                     continue;
    2801           0 :                 if (config->pix_fmt == *p)
    2802           0 :                     break;
    2803             :             }
    2804             :         }
    2805           0 :         if (config) {
    2806           0 :             if (config->device_type != ist->hwaccel_device_type) {
    2807             :                 // Different hwaccel offered, ignore.
    2808           0 :                 continue;
    2809             :             }
    2810             : 
    2811           0 :             ret = hwaccel_decode_init(s);
    2812           0 :             if (ret < 0) {
    2813           0 :                 if (ist->hwaccel_id == HWACCEL_GENERIC) {
    2814           0 :                     av_log(NULL, AV_LOG_FATAL,
    2815             :                            "%s hwaccel requested for input stream #%d:%d, "
    2816             :                            "but cannot be initialized.\n",
    2817             :                            av_hwdevice_get_type_name(config->device_type),
    2818           0 :                            ist->file_index, ist->st->index);
    2819           0 :                     return AV_PIX_FMT_NONE;
    2820             :                 }
    2821           0 :                 continue;
    2822             :             }
    2823             :         } else {
    2824           0 :             const HWAccel *hwaccel = NULL;
    2825             :             int i;
    2826           0 :             for (i = 0; hwaccels[i].name; i++) {
    2827           0 :                 if (hwaccels[i].pix_fmt == *p) {
    2828           0 :                     hwaccel = &hwaccels[i];
    2829           0 :                     break;
    2830             :                 }
    2831             :             }
    2832           0 :             if (!hwaccel) {
    2833             :                 // No hwaccel supporting this pixfmt.
    2834           0 :                 continue;
    2835             :             }
    2836           0 :             if (hwaccel->id != ist->hwaccel_id) {
    2837             :                 // Does not match requested hwaccel.
    2838           0 :                 continue;
    2839             :             }
    2840             : 
    2841           0 :             ret = hwaccel->init(s);
    2842           0 :             if (ret < 0) {
    2843           0 :                 av_log(NULL, AV_LOG_FATAL,
    2844             :                        "%s hwaccel requested for input stream #%d:%d, "
    2845             :                        "but cannot be initialized.\n", hwaccel->name,
    2846           0 :                        ist->file_index, ist->st->index);
    2847           0 :                 return AV_PIX_FMT_NONE;
    2848             :             }
    2849             :         }
    2850             : 
    2851           0 :         if (ist->hw_frames_ctx) {
    2852           0 :             s->hw_frames_ctx = av_buffer_ref(ist->hw_frames_ctx);
    2853           0 :             if (!s->hw_frames_ctx)
    2854           0 :                 return AV_PIX_FMT_NONE;
    2855             :         }
    2856             : 
    2857           0 :         ist->hwaccel_pix_fmt = *p;
    2858           0 :         break;
    2859             :     }
    2860             : 
    2861         915 :     return *p;
    2862             : }
    2863             : 
    2864      355935 : static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
    2865             : {
    2866      355935 :     InputStream *ist = s->opaque;
    2867             : 
    2868      355935 :     if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
    2869           0 :         return ist->hwaccel_get_buffer(s, frame, flags);
    2870             : 
    2871      355935 :     return avcodec_default_get_buffer2(s, frame, flags);
    2872             : }
    2873             : 
    2874        5918 : static int init_input_stream(int ist_index, char *error, int error_len)
    2875             : {
    2876             :     int ret;
    2877        5918 :     InputStream *ist = input_streams[ist_index];
    2878             : 
    2879        5918 :     if (ist->decoding_needed) {
    2880        5462 :         AVCodec *codec = ist->dec;
    2881        5462 :         if (!codec) {
    2882           0 :             snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
    2883           0 :                     avcodec_get_name(ist->dec_ctx->codec_id), ist->file_index, ist->st->index);
    2884           0 :             return AVERROR(EINVAL);
    2885             :         }
    2886             : 
    2887        5462 :         ist->dec_ctx->opaque                = ist;
    2888        5462 :         ist->dec_ctx->get_format            = get_format;
    2889        5462 :         ist->dec_ctx->get_buffer2           = get_buffer;
    2890        5462 :         ist->dec_ctx->thread_safe_callbacks = 1;
    2891             : 
    2892        5462 :         av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
    2893        5462 :         if (ist->dec_ctx->codec_id == AV_CODEC_ID_DVB_SUBTITLE &&
    2894           0 :            (ist->decoding_needed & DECODING_FOR_OST)) {
    2895           0 :             av_dict_set(&ist->decoder_opts, "compute_edt", "1", AV_DICT_DONT_OVERWRITE);
    2896           0 :             if (ist->decoding_needed & DECODING_FOR_FILTER)
    2897           0 :                 av_log(NULL, AV_LOG_WARNING, "Warning using DVB subtitles for filtering and output at the same time is not fully supported, also see -compute_edt [0|1]\n");
    2898             :         }
    2899             : 
    2900        5462 :         av_dict_set(&ist->decoder_opts, "sub_text_format", "ass", AV_DICT_DONT_OVERWRITE);
    2901             : 
    2902             :         /* Useful for subtitles retiming by lavf (FIXME), skipping samples in
    2903             :          * audio, and video decoders such as cuvid or mediacodec */
    2904        5462 :         ist->dec_ctx->pkt_timebase = ist->st->time_base;
    2905             : 
    2906        5462 :         if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
    2907          43 :             av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
    2908             :         /* Attached pics are sparse, therefore we would not want to delay their decoding till EOF. */
    2909        5462 :         if (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC)
    2910           1 :             av_dict_set(&ist->decoder_opts, "threads", "1", 0);
    2911             : 
    2912        5462 :         ret = hw_device_setup_for_decode(ist);
    2913        5462 :         if (ret < 0) {
    2914           0 :             snprintf(error, error_len, "Device setup failed for "
    2915             :                      "decoder on input stream #%d:%d : %s",
    2916           0 :                      ist->file_index, ist->st->index, av_err2str(ret));
    2917           0 :             return ret;
    2918             :         }
    2919             : 
    2920        5462 :         if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
    2921           0 :             if (ret == AVERROR_EXPERIMENTAL)
    2922           0 :                 abort_codec_experimental(codec, 0);
    2923             : 
    2924           0 :             snprintf(error, error_len,
    2925             :                      "Error while opening decoder for input stream "
    2926             :                      "#%d:%d : %s",
    2927           0 :                      ist->file_index, ist->st->index, av_err2str(ret));
    2928           0 :             return ret;
    2929             :         }
    2930        5462 :         assert_avoptions(ist->decoder_opts);
    2931             :     }
    2932             : 
    2933        5918 :     ist->next_pts = AV_NOPTS_VALUE;
    2934        5918 :     ist->next_dts = AV_NOPTS_VALUE;
    2935             : 
    2936        5918 :     return 0;
    2937             : }
    2938             : 
    2939       16641 : static InputStream *get_input_stream(OutputStream *ost)
    2940             : {
    2941       16641 :     if (ost->source_index >= 0)
    2942       16476 :         return input_streams[ost->source_index];
    2943         165 :     return NULL;
    2944             : }
    2945             : 
    2946           1 : static int compare_int64(const void *a, const void *b)
    2947             : {
    2948           1 :     return FFDIFFSIGN(*(const int64_t *)a, *(const int64_t *)b);
    2949             : }
    2950             : 
    2951             : /* open the muxer when all the streams are initialized */
    2952        5715 : static int check_init_output_file(OutputFile *of, int file_index)
    2953             : {
    2954             :     int ret, i;
    2955             : 
    2956       11543 :     for (i = 0; i < of->ctx->nb_streams; i++) {
    2957        5967 :         OutputStream *ost = output_streams[of->ost_index + i];
    2958        5967 :         if (!ost->initialized)
    2959         139 :             return 0;
    2960             :     }
    2961             : 
    2962        5576 :     of->ctx->interrupt_callback = int_cb;
    2963             : 
    2964        5576 :     ret = avformat_write_header(of->ctx, &of->opts);
    2965        5576 :     if (ret < 0) {
    2966           0 :         av_log(NULL, AV_LOG_ERROR,
    2967             :                "Could not write header for output file #%d "
    2968             :                "(incorrect codec parameters ?): %s\n",
    2969           0 :                file_index, av_err2str(ret));
    2970           0 :         return ret;
    2971             :     }
    2972             :     //assert_avoptions(of->opts);
    2973        5576 :     of->header_written = 1;
    2974             : 
    2975        5576 :     av_dump_format(of->ctx, file_index, of->ctx->url, 1);
    2976             : 
    2977        5576 :     if (sdp_filename || want_sdp)
    2978           0 :         print_sdp();
    2979             : 
    2980             :     /* flush the muxing queues */
    2981       11290 :     for (i = 0; i < of->ctx->nb_streams; i++) {
    2982        5714 :         OutputStream *ost = output_streams[of->ost_index + i];
    2983             : 
    2984             :         /* try to improve muxing time_base (only possible if nothing has been written yet) */
    2985        5714 :         if (!av_fifo_size(ost->muxing_queue))
    2986        5638 :             ost->mux_timebase = ost->st->time_base;
    2987             : 
    2988       11704 :         while (av_fifo_size(ost->muxing_queue)) {
    2989             :             AVPacket pkt;
    2990         276 :             av_fifo_generic_read(ost->muxing_queue, &pkt, sizeof(pkt), NULL);
    2991         276 :             write_packet(of, &pkt, ost, 1);
    2992             :         }
    2993             :     }
    2994             : 
    2995        5576 :     return 0;
    2996             : }
    2997             : 
    2998        5714 : static int init_output_bsfs(OutputStream *ost)
    2999             : {
    3000             :     AVBSFContext *ctx;
    3001             :     int i, ret;
    3002             : 
    3003        5714 :     if (!ost->nb_bitstream_filters)
    3004        5663 :         return 0;
    3005             : 
    3006         102 :     for (i = 0; i < ost->nb_bitstream_filters; i++) {
    3007          51 :         ctx = ost->bsf_ctx[i];
    3008             : 
    3009         102 :         ret = avcodec_parameters_copy(ctx->par_in,
    3010          51 :                                       i ? ost->bsf_ctx[i - 1]->par_out : ost->st->codecpar);
    3011          51 :         if (ret < 0)
    3012           0 :             return ret;
    3013             : 
    3014          51 :         ctx->time_base_in = i ? ost->bsf_ctx[i - 1]->time_base_out : ost->st->time_base;
    3015             : 
    3016          51 :         ret = av_bsf_init(ctx);
    3017          51 :         if (ret < 0) {
    3018           0 :             av_log(NULL, AV_LOG_ERROR, "Error initializing bitstream filter: %s\n",
    3019           0 :                    ost->bsf_ctx[i]->filter->name);
    3020           0 :             return ret;
    3021             :         }
    3022             :     }
    3023             : 
    3024          51 :     ctx = ost->bsf_ctx[ost->nb_bitstream_filters - 1];
    3025          51 :     ret = avcodec_parameters_copy(ost->st->codecpar, ctx->par_out);
    3026          51 :     if (ret < 0)
    3027           0 :         return ret;
    3028             : 
    3029          51 :     ost->st->time_base = ctx->time_base_out;
    3030             : 
    3031          51 :     return 0;
    3032             : }
    3033             : 
    3034         234 : static int init_output_stream_streamcopy(OutputStream *ost)
    3035             : {
    3036         234 :     OutputFile *of = output_files[ost->file_index];
    3037         234 :     InputStream *ist = get_input_stream(ost);
    3038         234 :     AVCodecParameters *par_dst = ost->st->codecpar;
    3039         234 :     AVCodecParameters *par_src = ost->ref_par;
    3040             :     AVRational sar;
    3041             :     int i, ret;
    3042         234 :     uint32_t codec_tag = par_dst->codec_tag;
    3043             : 
    3044         234 :     av_assert0(ist && !ost->filter);
    3045             : 
    3046         234 :     ret = avcodec_parameters_to_context(ost->enc_ctx, ist->st->codecpar);
    3047         234 :     if (ret >= 0)
    3048         234 :         ret = av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts);
    3049         234 :     if (ret < 0) {
    3050           0 :         av_log(NULL, AV_LOG_FATAL,
    3051             :                "Error setting up codec context options.\n");
    3052           0 :         return ret;
    3053             :     }
    3054         234 :     avcodec_parameters_from_context(par_src, ost->enc_ctx);
    3055             : 
    3056         234 :     if (!codec_tag) {
    3057             :         unsigned int codec_tag_tmp;
    3058         255 :         if (!of->ctx->oformat->codec_tag ||
    3059          39 :             av_codec_get_id (of->ctx->oformat->codec_tag, par_src->codec_tag) == par_src->codec_id ||
    3060          12 :             !av_codec_get_tag2(of->ctx->oformat->codec_tag, par_src->codec_id, &codec_tag_tmp))
    3061         219 :             codec_tag = par_src->codec_tag;
    3062             :     }
    3063             : 
    3064         234 :     ret = avcodec_parameters_copy(par_dst, par_src);
    3065         234 :     if (ret < 0)
    3066           0 :         return ret;
    3067             : 
    3068         234 :     par_dst->codec_tag = codec_tag;
    3069             : 
    3070         234 :     if (!ost->frame_rate.num)
    3071         233 :         ost->frame_rate = ist->framerate;
    3072         234 :     ost->st->avg_frame_rate = ost->frame_rate;
    3073             : 
    3074         234 :     ret = avformat_transfer_internal_stream_timing_info(of->ctx->oformat, ost->st, ist->st, copy_tb);
    3075         234 :     if (ret < 0)
    3076           0 :         return ret;
    3077             : 
    3078             :     // copy timebase while removing common factors
    3079         234 :     if (ost->st->time_base.num <= 0 || ost->st->time_base.den <= 0)
    3080         233 :         ost->st->time_base = av_add_q(av_stream_get_codec_timebase(ost->st), (AVRational){0, 1});
    3081             : 
    3082             :     // copy estimated duration as a hint to the muxer
    3083         234 :     if (ost->st->duration <= 0 && ist->st->duration > 0)
    3084         142 :         ost->st->duration = av_rescale_q(ist->st->duration, ist->st->time_base, ost->st->time_base);
    3085             : 
    3086             :     // copy disposition
    3087         234 :     ost->st->disposition = ist->st->disposition;
    3088             : 
    3089         234 :     if (ist->st->nb_side_data) {
    3090           8 :         for (i = 0; i < ist->st->nb_side_data; i++) {
    3091           4 :             const AVPacketSideData *sd_src = &ist->st->side_data[i];
    3092             :             uint8_t *dst_data;
    3093             : 
    3094           4 :             dst_data = av_stream_new_side_data(ost->st, sd_src->type, sd_src->size);
    3095           4 :             if (!dst_data)
    3096           0 :                 return AVERROR(ENOMEM);
    3097           4 :             memcpy(dst_data, sd_src->data, sd_src->size);
    3098             :         }
    3099             :     }
    3100             : 
    3101         234 :     if (ost->rotate_overridden) {
    3102           1 :         uint8_t *sd = av_stream_new_side_data(ost->st, AV_PKT_DATA_DISPLAYMATRIX,
    3103             :                                               sizeof(int32_t) * 9);
    3104           1 :         if (sd)
    3105           1 :             av_display_rotation_set((int32_t *)sd, -ost->rotate_override_value);
    3106             :     }
    3107             : 
    3108         234 :     switch (par_dst->codec_type) {
    3109          95 :     case AVMEDIA_TYPE_AUDIO:
    3110          95 :         if (audio_volume != 256) {
    3111           0 :             av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
    3112           0 :             exit_program(1);
    3113             :         }
    3114          95 :         if((par_dst->block_align == 1 || par_dst->block_align == 1152 || par_dst->block_align == 576) && par_dst->codec_id == AV_CODEC_ID_MP3)
    3115           0 :             par_dst->block_align= 0;
    3116          95 :         if(par_dst->codec_id == AV_CODEC_ID_AC3)
    3117           2 :             par_dst->block_align= 0;
    3118          95 :         break;
    3119         123 :     case AVMEDIA_TYPE_VIDEO:
    3120         123 :         if (ost->frame_aspect_ratio.num) { // overridden by the -aspect cli option
    3121           0 :             sar =
    3122             :                 av_mul_q(ost->frame_aspect_ratio,
    3123           0 :                          (AVRational){ par_dst->height, par_dst->width });
    3124           0 :             av_log(NULL, AV_LOG_WARNING, "Overriding aspect ratio "
    3125             :                    "with stream copy may produce invalid files\n");
    3126             :             }
    3127         123 :         else if (ist->st->sample_aspect_ratio.num)
    3128          35 :             sar = ist->st->sample_aspect_ratio;
    3129             :         else
    3130          88 :             sar = par_src->sample_aspect_ratio;
    3131         123 :         ost->st->sample_aspect_ratio = par_dst->sample_aspect_ratio = sar;
    3132         123 :         ost->st->avg_frame_rate = ist->st->avg_frame_rate;
    3133         123 :         ost->st->r_frame_rate = ist->st->r_frame_rate;
    3134         123 :         break;
    3135             :     }
    3136             : 
    3137         234 :     ost->mux_timebase = ist->st->time_base;
    3138             : 
    3139         234 :     return 0;
    3140             : }
    3141             : 
    3142        5479 : static void set_encoder_id(OutputFile *of, OutputStream *ost)
    3143             : {
    3144             :     AVDictionaryEntry *e;
    3145             : 
    3146             :     uint8_t *encoder_string;
    3147             :     int encoder_string_len;
    3148        5479 :     int format_flags = 0;
    3149        5479 :     int codec_flags = ost->enc_ctx->flags;
    3150             : 
    3151        5479 :     if (av_dict_get(ost->st->metadata, "encoder",  NULL, 0))
    3152           0 :         return;
    3153             : 
    3154        5479 :     e = av_dict_get(of->opts, "fflags", NULL, 0);
    3155        5479 :     if (e) {
    3156        3119 :         const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
    3157        3119 :         if (!o)
    3158           0 :             return;
    3159        3119 :         av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
    3160             :     }
    3161        5479 :     e = av_dict_get(ost->encoder_opts, "flags", NULL, 0);
    3162        5479 :     if (e) {
    3163        3108 :         const AVOption *o = av_opt_find(ost->enc_ctx, "flags", NULL, 0, 0);
    3164        3108 :         if (!o)
    3165           0 :             return;
    3166        3108 :         av_opt_eval_flags(ost->enc_ctx, o, e->value, &codec_flags);
    3167             :     }
    3168             : 
    3169        5479 :     encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
    3170        5479 :     encoder_string     = av_mallocz(encoder_string_len);
    3171        5479 :     if (!encoder_string)
    3172           0 :         exit_program(1);
    3173             : 
    3174        5479 :     if (!(format_flags & AVFMT_FLAG_BITEXACT) && !(codec_flags & AV_CODEC_FLAG_BITEXACT))
    3175         802 :         av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
    3176             :     else
    3177        4677 :         av_strlcpy(encoder_string, "Lavc ", encoder_string_len);
    3178        5479 :     av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
    3179        5479 :     av_dict_set(&ost->st->metadata, "encoder",  encoder_string,
    3180             :                 AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
    3181             : }
    3182             : 
    3183           1 : static void parse_forced_key_frames(char *kf, OutputStream *ost,
    3184             :                                     AVCodecContext *avctx)
    3185             : {
    3186             :     char *p;
    3187           1 :     int n = 1, i, size, index = 0;
    3188             :     int64_t t, *pts;
    3189             : 
    3190          14 :     for (p = kf; *p; p++)
    3191          13 :         if (*p == ',')
    3192           1 :             n++;
    3193           1 :     size = n;
    3194           1 :     pts = av_malloc_array(size, sizeof(*pts));
    3195           1 :     if (!pts) {
    3196           0 :         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
    3197           0 :         exit_program(1);
    3198             :     }
    3199             : 
    3200           1 :     p = kf;
    3201           3 :     for (i = 0; i < n; i++) {
    3202           2 :         char *next = strchr(p, ',');
    3203             : 
    3204           2 :         if (next)
    3205           1 :             *next++ = 0;
    3206             : 
    3207           2 :         if (!memcmp(p, "chapters", 8)) {
    3208             : 
    3209           0 :             AVFormatContext *avf = output_files[ost->file_index]->ctx;
    3210             :             int j;
    3211             : 
    3212           0 :             if (avf->nb_chapters > INT_MAX - size ||
    3213           0 :                 !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
    3214             :                                      sizeof(*pts)))) {
    3215           0 :                 av_log(NULL, AV_LOG_FATAL,
    3216             :                        "Could not allocate forced key frames array.\n");
    3217           0 :                 exit_program(1);
    3218             :             }
    3219           0 :             t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
    3220           0 :             t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
    3221             : 
    3222           0 :             for (j = 0; j < avf->nb_chapters; j++) {
    3223           0 :                 AVChapter *c = avf->chapters[j];
    3224             :                 av_assert1(index < size);
    3225           0 :                 pts[index++] = av_rescale_q(c->start, c->time_base,
    3226           0 :                                             avctx->time_base) + t;
    3227             :             }
    3228             : 
    3229             :         } else {
    3230             : 
    3231           2 :             t = parse_time_or_die("force_key_frames", p, 1);
    3232             :             av_assert1(index < size);
    3233           2 :             pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
    3234             : 
    3235             :         }
    3236             : 
    3237           2 :         p = next;
    3238             :     }
    3239             : 
    3240           1 :     av_assert0(index == size);
    3241           1 :     qsort(pts, size, sizeof(*pts), compare_int64);
    3242           1 :     ost->forced_kf_count = size;
    3243           1 :     ost->forced_kf_pts   = pts;
    3244           1 : }
    3245             : 
    3246        5449 : static void init_encoder_time_base(OutputStream *ost, AVRational default_time_base)
    3247             : {
    3248        5449 :     InputStream *ist = get_input_stream(ost);
    3249        5449 :     AVCodecContext *enc_ctx = ost->enc_ctx;
    3250             :     AVFormatContext *oc;
    3251             : 
    3252        5449 :     if (ost->enc_timebase.num > 0) {
    3253           0 :         enc_ctx->time_base = ost->enc_timebase;
    3254           0 :         return;
    3255             :     }
    3256             : 
    3257        5449 :     if (ost->enc_timebase.num < 0) {
    3258           0 :         if (ist) {
    3259           0 :             enc_ctx->time_base = ist->st->time_base;
    3260           0 :             return;
    3261             :         }
    3262             : 
    3263           0 :         oc = output_files[ost->file_index]->ctx;
    3264           0 :         av_log(oc, AV_LOG_WARNING, "Input stream data not available, using default time base\n");
    3265             :     }
    3266             : 
    3267        5449 :     enc_ctx->time_base = default_time_base;
    3268             : }
    3269             : 
    3270        5479 : static int init_output_stream_encode(OutputStream *ost)
    3271             : {
    3272        5479 :     InputStream *ist = get_input_stream(ost);
    3273        5479 :     AVCodecContext *enc_ctx = ost->enc_ctx;
    3274        5479 :     AVCodecContext *dec_ctx = NULL;
    3275        5479 :     AVFormatContext *oc = output_files[ost->file_index]->ctx;
    3276             :     int j, ret;
    3277             : 
    3278        5479 :     set_encoder_id(output_files[ost->file_index], ost);
    3279             : 
    3280             :     // Muxers use AV_PKT_DATA_DISPLAYMATRIX to signal rotation. On the other
    3281             :     // hand, the legacy API makes demuxers set "rotate" metadata entries,
    3282             :     // which have to be filtered out to prevent leaking them to output files.
    3283        5479 :     av_dict_set(&ost->st->metadata, "rotate", NULL, 0);
    3284             : 
    3285        5479 :     if (ist) {
    3286        5424 :         ost->st->disposition          = ist->st->disposition;
    3287             : 
    3288        5424 :         dec_ctx = ist->dec_ctx;
    3289             : 
    3290        5424 :         enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
    3291             :     } else {
    3292         114 :         for (j = 0; j < oc->nb_streams; j++) {
    3293          59 :             AVStream *st = oc->streams[j];
    3294          59 :             if (st != ost->st && st->codecpar->codec_type == ost->st->codecpar->codec_type)
    3295           0 :                 break;
    3296             :         }
    3297          55 :         if (j == oc->nb_streams)
    3298         102 :             if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO ||
    3299          47 :                 ost->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
    3300          55 :                 ost->st->disposition = AV_DISPOSITION_DEFAULT;
    3301             :     }
    3302             : 
    3303        5479 :     if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
    3304        4381 :         if (!ost->frame_rate.num)
    3305        4362 :             ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
    3306        4381 :         if (ist && !ost->frame_rate.num)
    3307           0 :             ost->frame_rate = ist->framerate;
    3308        4381 :         if (ist && !ost->frame_rate.num)
    3309           0 :             ost->frame_rate = ist->st->r_frame_rate;
    3310        4381 :         if (ist && !ost->frame_rate.num) {
    3311           0 :             ost->frame_rate = (AVRational){25, 1};
    3312           0 :             av_log(NULL, AV_LOG_WARNING,
    3313             :                    "No information "
    3314             :                    "about the input framerate is available. Falling "
    3315             :                    "back to a default value of 25fps for output stream #%d:%d. Use the -r option "
    3316             :                    "if you want a different framerate.\n",
    3317             :                    ost->file_index, ost->index);
    3318             :         }
    3319             : //      ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
    3320        4381 :         if (ost->enc->supported_framerates && !ost->force_fps) {
    3321          48 :             int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
    3322          48 :             ost->frame_rate = ost->enc->supported_framerates[idx];
    3323             :         }
    3324             :         // reduce frame rate for mpeg4 to be within the spec limits
    3325        4381 :         if (enc_ctx->codec_id == AV_CODEC_ID_MPEG4) {
    3326         116 :             av_reduce(&ost->frame_rate.num, &ost->frame_rate.den,
    3327         116 :                       ost->frame_rate.num, ost->frame_rate.den, 65535);
    3328             :         }
    3329             :     }
    3330             : 
    3331        5479 :     switch (enc_ctx->codec_type) {
    3332        1068 :     case AVMEDIA_TYPE_AUDIO:
    3333        1068 :         enc_ctx->sample_fmt     = av_buffersink_get_format(ost->filter->filter);
    3334        1068 :         if (dec_ctx)
    3335        1060 :             enc_ctx->bits_per_raw_sample = FFMIN(dec_ctx->bits_per_raw_sample,
    3336             :                                                  av_get_bytes_per_sample(enc_ctx->sample_fmt) << 3);
    3337        1068 :         enc_ctx->sample_rate    = av_buffersink_get_sample_rate(ost->filter->filter);
    3338        1068 :         enc_ctx->channel_layout = av_buffersink_get_channel_layout(ost->filter->filter);
    3339        1068 :         enc_ctx->channels       = av_buffersink_get_channels(ost->filter->filter);
    3340             : 
    3341        1068 :         init_encoder_time_base(ost, av_make_q(1, enc_ctx->sample_rate));
    3342        1068 :         break;
    3343             : 
    3344        4381 :     case AVMEDIA_TYPE_VIDEO:
    3345        4381 :         init_encoder_time_base(ost, av_inv_q(ost->frame_rate));
    3346             : 
    3347        4381 :         if (!(enc_ctx->time_base.num && enc_ctx->time_base.den))
    3348           0 :             enc_ctx->time_base = av_buffersink_get_time_base(ost->filter->filter);
    3349        4381 :         if (   av_q2d(enc_ctx->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
    3350           3 :            && (video_sync_method == VSYNC_CFR || video_sync_method == VSYNC_VSCFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
    3351           0 :             av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
    3352             :                                        "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
    3353             :         }
    3354        4381 :         for (j = 0; j < ost->forced_kf_count; j++)
    3355           0 :             ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
    3356           0 :                                                  AV_TIME_BASE_Q,
    3357             :                                                  enc_ctx->time_base);
    3358             : 
    3359        4381 :         enc_ctx->width  = av_buffersink_get_w(ost->filter->filter);
    3360        4381 :         enc_ctx->height = av_buffersink_get_h(ost->filter->filter);
    3361        8762 :         enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
    3362        4381 :             ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option
    3363        8762 :             av_mul_q(ost->frame_aspect_ratio, (AVRational){ enc_ctx->height, enc_ctx->width }) :
    3364        4381 :             av_buffersink_get_sample_aspect_ratio(ost->filter->filter);
    3365             : 
    3366        4381 :         enc_ctx->pix_fmt = av_buffersink_get_format(ost->filter->filter);
    3367        4381 :         if (dec_ctx)
    3368        4334 :             enc_ctx->bits_per_raw_sample = FFMIN(dec_ctx->bits_per_raw_sample,
    3369             :                                                  av_pix_fmt_desc_get(enc_ctx->pix_fmt)->comp[0].depth);
    3370             : 
    3371        4381 :         enc_ctx->framerate = ost->frame_rate;
    3372             : 
    3373        4381 :         ost->st->avg_frame_rate = ost->frame_rate;
    3374             : 
    3375        8715 :         if (!dec_ctx ||
    3376        7967 :             enc_ctx->width   != dec_ctx->width  ||
    3377        7064 :             enc_ctx->height  != dec_ctx->height ||
    3378        3431 :             enc_ctx->pix_fmt != dec_ctx->pix_fmt) {
    3379        2812 :             enc_ctx->bits_per_raw_sample = frame_bits_per_raw_sample;
    3380             :         }
    3381             : 
    3382        4381 :         if (ost->forced_keyframes) {
    3383           1 :             if (!strncmp(ost->forced_keyframes, "expr:", 5)) {
    3384           0 :                 ret = av_expr_parse(&ost->forced_keyframes_pexpr, ost->forced_keyframes+5,
    3385             :                                     forced_keyframes_const_names, NULL, NULL, NULL, NULL, 0, NULL);
    3386           0 :                 if (ret < 0) {
    3387           0 :                     av_log(NULL, AV_LOG_ERROR,
    3388           0 :                            "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5);
    3389           0 :                     return ret;
    3390             :                 }
    3391           0 :                 ost->forced_keyframes_expr_const_values[FKF_N] = 0;
    3392           0 :                 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] = 0;
    3393           0 :                 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] = NAN;
    3394           0 :                 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] = NAN;
    3395             : 
    3396             :             // Don't parse the 'forced_keyframes' in case of 'keep-source-keyframes',
    3397             :             // parse it only for static kf timings
    3398           1 :             } else if(strncmp(ost->forced_keyframes, "source", 6)) {
    3399           1 :                 parse_forced_key_frames(ost->forced_keyframes, ost, ost->enc_ctx);
    3400             :             }
    3401             :         }
    3402        4381 :         break;
    3403          30 :     case AVMEDIA_TYPE_SUBTITLE:
    3404          30 :         enc_ctx->time_base = AV_TIME_BASE_Q;
    3405          30 :         if (!enc_ctx->width) {
    3406          30 :             enc_ctx->width     = input_streams[ost->source_index]->st->codecpar->width;
    3407          30 :             enc_ctx->height    = input_streams[ost->source_index]->st->codecpar->height;
    3408             :         }
    3409          30 :         break;
    3410           0 :     case AVMEDIA_TYPE_DATA:
    3411           0 :         break;
    3412           0 :     default:
    3413           0 :         abort();
    3414             :         break;
    3415             :     }
    3416             : 
    3417        5479 :     ost->mux_timebase = enc_ctx->time_base;
    3418             : 
    3419        5479 :     return 0;
    3420             : }
    3421             : 
    3422        5714 : static int init_output_stream(OutputStream *ost, char *error, int error_len)
    3423             : {
    3424        5714 :     int ret = 0;
    3425             : 
    3426        5714 :     if (ost->encoding_needed) {
    3427        5479 :         AVCodec      *codec = ost->enc;
    3428        5479 :         AVCodecContext *dec = NULL;
    3429             :         InputStream *ist;
    3430             : 
    3431        5479 :         ret = init_output_stream_encode(ost);
    3432        5479 :         if (ret < 0)
    3433           0 :             return ret;
    3434             : 
    3435        5479 :         if ((ist = get_input_stream(ost)))
    3436        5424 :             dec = ist->dec_ctx;
    3437        5479 :         if (dec && dec->subtitle_header) {
    3438             :             /* ASS code assumes this buffer is null terminated so add extra byte. */
    3439          29 :             ost->enc_ctx->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
    3440          29 :             if (!ost->enc_ctx->subtitle_header)
    3441           0 :                 return AVERROR(ENOMEM);
    3442          29 :             memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
    3443          29 :             ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
    3444             :         }
    3445        5479 :         if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
    3446        2421 :             av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
    3447        6547 :         if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
    3448        2098 :             !codec->defaults &&
    3449        1995 :             !av_dict_get(ost->encoder_opts, "b", NULL, 0) &&
    3450         965 :             !av_dict_get(ost->encoder_opts, "ab", NULL, 0))
    3451         965 :             av_dict_set(&ost->encoder_opts, "b", "128000", 0);
    3452             : 
    3453        5479 :         if (ost->filter && av_buffersink_get_hw_frames_ctx(ost->filter->filter) &&
    3454           0 :             ((AVHWFramesContext*)av_buffersink_get_hw_frames_ctx(ost->filter->filter)->data)->format ==
    3455           0 :             av_buffersink_get_format(ost->filter->filter)) {
    3456           0 :             ost->enc_ctx->hw_frames_ctx = av_buffer_ref(av_buffersink_get_hw_frames_ctx(ost->filter->filter));
    3457           0 :             if (!ost->enc_ctx->hw_frames_ctx)
    3458           0 :                 return AVERROR(ENOMEM);
    3459             :         } else {
    3460        5479 :             ret = hw_device_setup_for_encode(ost);
    3461        5479 :             if (ret < 0) {
    3462           0 :                 snprintf(error, error_len, "Device setup failed for "
    3463             :                          "encoder on output stream #%d:%d : %s",
    3464           0 :                      ost->file_index, ost->index, av_err2str(ret));
    3465           0 :                 return ret;
    3466             :             }
    3467             :         }
    3468             : 
    3469        5479 :         if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
    3470           0 :             if (ret == AVERROR_EXPERIMENTAL)
    3471           0 :                 abort_codec_experimental(codec, 1);
    3472           0 :             snprintf(error, error_len,
    3473             :                      "Error while opening encoder for output stream #%d:%d - "
    3474             :                      "maybe incorrect parameters such as bit_rate, rate, width or height",
    3475             :                     ost->file_index, ost->index);
    3476           0 :             return ret;
    3477             :         }
    3478        6547 :         if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
    3479        1068 :             !(ost->enc->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE))
    3480          85 :             av_buffersink_set_frame_size(ost->filter->filter,
    3481          85 :                                             ost->enc_ctx->frame_size);
    3482        5479 :         assert_avoptions(ost->encoder_opts);
    3483        5479 :         if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000 &&
    3484           0 :             ost->enc_ctx->codec_id != AV_CODEC_ID_CODEC2 /* don't complain about 700 bit/s modes */)
    3485           0 :             av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
    3486             :                                          " It takes bits/s as argument, not kbits/s\n");
    3487             : 
    3488        5479 :         ret = avcodec_parameters_from_context(ost->st->codecpar, ost->enc_ctx);
    3489        5479 :         if (ret < 0) {
    3490           0 :             av_log(NULL, AV_LOG_FATAL,
    3491             :                    "Error initializing the output stream codec context.\n");
    3492           0 :             exit_program(1);
    3493             :         }
    3494             :         /*
    3495             :          * FIXME: ost->st->codec should't be needed here anymore.
    3496             :          */
    3497        5479 :         ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx);
    3498        5479 :         if (ret < 0)
    3499           0 :             return ret;
    3500             : 
    3501        5479 :         if (ost->enc_ctx->nb_coded_side_data) {
    3502             :             int i;
    3503             : 
    3504         364 :             for (i = 0; i < ost->enc_ctx->nb_coded_side_data; i++) {
    3505         182 :                 const AVPacketSideData *sd_src = &ost->enc_ctx->coded_side_data[i];
    3506             :                 uint8_t *dst_data;
    3507             : 
    3508         182 :                 dst_data = av_stream_new_side_data(ost->st, sd_src->type, sd_src->size);
    3509         182 :                 if (!dst_data)
    3510           0 :                     return AVERROR(ENOMEM);
    3511         182 :                 memcpy(dst_data, sd_src->data, sd_src->size);
    3512             :             }
    3513             :         }
    3514             : 
    3515             :         /*
    3516             :          * Add global input side data. For now this is naive, and copies it
    3517             :          * from the input stream's global side data. All side data should
    3518             :          * really be funneled over AVFrame and libavfilter, then added back to
    3519             :          * packet side data, and then potentially using the first packet for
    3520             :          * global side data.
    3521             :          */
    3522        5479 :         if (ist) {
    3523             :             int i;
    3524        5633 :             for (i = 0; i < ist->st->nb_side_data; i++) {
    3525         209 :                 AVPacketSideData *sd = &ist->st->side_data[i];
    3526         209 :                 uint8_t *dst = av_stream_new_side_data(ost->st, sd->type, sd->size);
    3527         209 :                 if (!dst)
    3528           0 :                     return AVERROR(ENOMEM);
    3529         209 :                 memcpy(dst, sd->data, sd->size);
    3530         209 :                 if (ist->autorotate && sd->type == AV_PKT_DATA_DISPLAYMATRIX)
    3531           0 :                     av_display_rotation_set((uint32_t *)dst, 0);
    3532             :             }
    3533             :         }
    3534             : 
    3535             :         // copy timebase while removing common factors
    3536        5479 :         if (ost->st->time_base.num <= 0 || ost->st->time_base.den <= 0)
    3537        5479 :             ost->st->time_base = av_add_q(ost->enc_ctx->time_base, (AVRational){0, 1});
    3538             : 
    3539             :         // copy estimated duration as a hint to the muxer
    3540        5479 :         if (ost->st->duration <= 0 && ist && ist->st->duration > 0)
    3541        4321 :             ost->st->duration = av_rescale_q(ist->st->duration, ist->st->time_base, ost->st->time_base);
    3542             : 
    3543        5479 :         ost->st->codec->codec= ost->enc_ctx->codec;
    3544         235 :     } else if (ost->stream_copy) {
    3545         234 :         ret = init_output_stream_streamcopy(ost);
    3546         234 :         if (ret < 0)
    3547           0 :             return ret;
    3548             :     }
    3549             : 
    3550             :     // parse user provided disposition, and update stream values
    3551        5714 :     if (ost->disposition) {
    3552             :         static const AVOption opts[] = {
    3553             :             { "disposition"         , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, INT64_MAX, .unit = "flags" },
    3554             :             { "default"             , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DEFAULT           },    .unit = "flags" },
    3555             :             { "dub"                 , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DUB               },    .unit = "flags" },
    3556             :             { "original"            , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_ORIGINAL          },    .unit = "flags" },
    3557             :             { "comment"             , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_COMMENT           },    .unit = "flags" },
    3558             :             { "lyrics"              , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_LYRICS            },    .unit = "flags" },
    3559             :             { "karaoke"             , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_KARAOKE           },    .unit = "flags" },
    3560             :             { "forced"              , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_FORCED            },    .unit = "flags" },
    3561             :             { "hearing_impaired"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_HEARING_IMPAIRED  },    .unit = "flags" },
    3562             :             { "visual_impaired"     , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_VISUAL_IMPAIRED   },    .unit = "flags" },
    3563             :             { "clean_effects"       , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_CLEAN_EFFECTS     },    .unit = "flags" },
    3564             :             { "attached_pic"        , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_ATTACHED_PIC      },    .unit = "flags" },
    3565             :             { "captions"            , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_CAPTIONS          },    .unit = "flags" },
    3566             :             { "descriptions"        , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DESCRIPTIONS      },    .unit = "flags" },
    3567             :             { "dependent"           , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DEPENDENT         },    .unit = "flags" },
    3568             :             { "metadata"            , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_METADATA          },    .unit = "flags" },
    3569             :             { NULL },
    3570             :         };
    3571             :         static const AVClass class = {
    3572             :             .class_name = "",
    3573             :             .item_name  = av_default_item_name,
    3574             :             .option     = opts,
    3575             :             .version    = LIBAVUTIL_VERSION_INT,
    3576             :         };
    3577           0 :         const AVClass *pclass = &class;
    3578             : 
    3579           0 :         ret = av_opt_eval_flags(&pclass, &opts[0], ost->disposition, &ost->st->disposition);
    3580           0 :         if (ret < 0)
    3581           0 :             return ret;
    3582             :     }
    3583             : 
    3584             :     /* initialize bitstream filters for the output stream
    3585             :      * needs to be done here, because the codec id for streamcopy is not
    3586             :      * known until now */
    3587        5714 :     ret = init_output_bsfs(ost);
    3588        5714 :     if (ret < 0)
    3589           0 :         return ret;
    3590             : 
    3591        5714 :     ost->initialized = 1;
    3592             : 
    3593        5714 :     ret = check_init_output_file(output_files[ost->file_index], ost->file_index);
    3594        5714 :     if (ret < 0)
    3595           0 :         return ret;
    3596             : 
    3597        5714 :     return ret;
    3598             : }
    3599             : 
    3600           0 : static void report_new_stream(int input_index, AVPacket *pkt)
    3601             : {
    3602           0 :     InputFile *file = input_files[input_index];
    3603           0 :     AVStream *st = file->ctx->streams[pkt->stream_index];
    3604             : 
    3605           0 :     if (pkt->stream_index < file->nb_streams_warn)
    3606           0 :         return;
    3607           0 :     av_log(file->ctx, AV_LOG_WARNING,
    3608             :            "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
    3609           0 :            av_get_media_type_string(st->codecpar->codec_type),
    3610             :            input_index, pkt->stream_index,
    3611           0 :            pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
    3612           0 :     file->nb_streams_warn = pkt->stream_index + 1;
    3613             : }
    3614             : 
    3615        5575 : static int transcode_init(void)
    3616             : {
    3617        5575 :     int ret = 0, i, j, k;
    3618             :     AVFormatContext *oc;
    3619             :     OutputStream *ost;
    3620             :     InputStream *ist;
    3621        5575 :     char error[1024] = {0};
    3622             : 
    3623       11022 :     for (i = 0; i < nb_filtergraphs; i++) {
    3624        5447 :         FilterGraph *fg = filtergraphs[i];
    3625       10896 :         for (j = 0; j < fg->nb_outputs; j++) {
    3626        5449 :             OutputFilter *ofilter = fg->outputs[j];
    3627        5449 :             if (!ofilter->ost || ofilter->ost->source_index >= 0)
    3628        5378 :                 continue;
    3629          71 :             if (fg->nb_inputs != 1)
    3630          55 :                 continue;
    3631          17 :             for (k = nb_input_streams-1; k >= 0 ; k--)
    3632          17 :                 if (fg->inputs[0]->ist == input_streams[k])
    3633          16 :                     break;
    3634          16 :             ofilter->ost->source_index = k;
    3635             :         }
    3636             :     }
    3637             : 
    3638             :     /* init framerate emulation */
    3639       11185 :     for (i = 0; i < nb_input_files; i++) {
    3640        5610 :         InputFile *ifile = input_files[i];
    3641        5610 :         if (ifile->rate_emu)
    3642           0 :             for (j = 0; j < ifile->nb_streams; j++)
    3643           0 :                 input_streams[j + ifile->ist_index]->start = av_gettime_relative();
    3644             :     }
    3645             : 
    3646             :     /* init input streams */
    3647       11493 :     for (i = 0; i < nb_input_streams; i++)
    3648        5918 :         if ((ret = init_input_stream(i, error, sizeof(error))) < 0) {
    3649           0 :             for (i = 0; i < nb_output_streams; i++) {
    3650           0 :                 ost = output_streams[i];
    3651           0 :                 avcodec_close(ost->enc_ctx);
    3652             :             }
    3653           0 :             goto dump_format;
    3654             :         }
    3655             : 
    3656             :     /* open each encoder */
    3657       11289 :     for (i = 0; i < nb_output_streams; i++) {
    3658             :         // skip streams fed from filtergraphs until we have a frame for them
    3659        5714 :         if (output_streams[i]->filter)
    3660        5449 :             continue;
    3661             : 
    3662         265 :         ret = init_output_stream(output_streams[i], error, sizeof(error));
    3663         265 :         if (ret < 0)
    3664           0 :             goto dump_format;
    3665             :     }
    3666             : 
    3667             :     /* discard unused programs */
    3668       11185 :     for (i = 0; i < nb_input_files; i++) {
    3669        5610 :         InputFile *ifile = input_files[i];
    3670        5635 :         for (j = 0; j < ifile->ctx->nb_programs; j++) {
    3671          25 :             AVProgram *p = ifile->ctx->programs[j];
    3672          25 :             int discard  = AVDISCARD_ALL;
    3673             : 
    3674          25 :             for (k = 0; k < p->nb_stream_indexes; k++)
    3675          25 :                 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
    3676          25 :                     discard = AVDISCARD_DEFAULT;
    3677          25 :                     break;
    3678             :                 }
    3679          25 :             p->discard = discard;
    3680             :         }
    3681             :     }
    3682             : 
    3683             :     /* write headers for files with no streams */
    3684       11151 :     for (i = 0; i < nb_output_files; i++) {
    3685        5576 :         oc = output_files[i]->ctx;
    3686        5576 :         if (oc->oformat->flags & AVFMT_NOSTREAMS && oc->nb_streams == 0) {
    3687           1 :             ret = check_init_output_file(output_files[i], i);
    3688           1 :             if (ret < 0)
    3689           0 :                 goto dump_format;
    3690             :         }
    3691             :     }
    3692             : 
    3693        5575 :  dump_format:
    3694             :     /* dump the stream mapping */
    3695        5575 :     av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
    3696       11493 :     for (i = 0; i < nb_input_streams; i++) {
    3697        5918 :         ist = input_streams[i];
    3698             : 
    3699       11352 :         for (j = 0; j < ist->nb_filters; j++) {
    3700        5434 :             if (!filtergraph_is_simple(ist->filters[j]->graph)) {
    3701         224 :                 av_log(NULL, AV_LOG_INFO, "  Stream #%d:%d (%s) -> %s",
    3702         168 :                        ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
    3703          56 :                        ist->filters[j]->name);
    3704          56 :                 if (nb_filtergraphs > 1)
    3705           0 :                     av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
    3706          56 :                 av_log(NULL, AV_LOG_INFO, "\n");
    3707             :             }
    3708             :         }
    3709             :     }
    3710             : 
    3711       11289 :     for (i = 0; i < nb_output_streams; i++) {
    3712        5714 :         ost = output_streams[i];
    3713             : 
    3714        5714 :         if (ost->attachment_filename) {
    3715             :             /* an attached file */
    3716           1 :             av_log(NULL, AV_LOG_INFO, "  File %s -> Stream #%d:%d\n",
    3717             :                    ost->attachment_filename, ost->file_index, ost->index);
    3718           1 :             continue;
    3719             :         }
    3720             : 
    3721        5713 :         if (ost->filter && !filtergraph_is_simple(ost->filter->graph)) {
    3722             :             /* output from a complex graph */
    3723          71 :             av_log(NULL, AV_LOG_INFO, "  %s", ost->filter->name);
    3724          71 :             if (nb_filtergraphs > 1)
    3725           0 :                 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
    3726             : 
    3727         142 :             av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
    3728         142 :                    ost->index, ost->enc ? ost->enc->name : "?");
    3729          71 :             continue;
    3730             :         }
    3731             : 
    3732       16926 :         av_log(NULL, AV_LOG_INFO, "  Stream #%d:%d -> #%d:%d",
    3733        5642 :                input_streams[ost->source_index]->file_index,
    3734        5642 :                input_streams[ost->source_index]->st->index,
    3735             :                ost->file_index,
    3736             :                ost->index);
    3737        5642 :         if (ost->sync_ist != input_streams[ost->source_index])
    3738           0 :             av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
    3739           0 :                    ost->sync_ist->file_index,
    3740           0 :                    ost->sync_ist->st->index);
    3741        5642 :         if (ost->stream_copy)
    3742         234 :             av_log(NULL, AV_LOG_INFO, " (copy)");
    3743             :         else {
    3744        5408 :             const AVCodec *in_codec    = input_streams[ost->source_index]->dec;
    3745        5408 :             const AVCodec *out_codec   = ost->enc;
    3746        5408 :             const char *decoder_name   = "?";
    3747        5408 :             const char *in_codec_name  = "?";
    3748        5408 :             const char *encoder_name   = "?";
    3749        5408 :             const char *out_codec_name = "?";
    3750             :             const AVCodecDescriptor *desc;
    3751             : 
    3752        5408 :             if (in_codec) {
    3753        5408 :                 decoder_name  = in_codec->name;
    3754        5408 :                 desc = avcodec_descriptor_get(in_codec->id);
    3755        5408 :                 if (desc)
    3756        5408 :                     in_codec_name = desc->name;
    3757        5408 :                 if (!strcmp(decoder_name, in_codec_name))
    3758        5253 :                     decoder_name = "native";
    3759             :             }
    3760             : 
    3761        5408 :             if (out_codec) {
    3762        5408 :                 encoder_name   = out_codec->name;
    3763        5408 :                 desc = avcodec_descriptor_get(out_codec->id);
    3764        5408 :                 if (desc)
    3765        5408 :                     out_codec_name = desc->name;
    3766        5408 :                 if (!strcmp(encoder_name, out_codec_name))
    3767        5320 :                     encoder_name = "native";
    3768             :             }
    3769             : 
    3770        5408 :             av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
    3771             :                    in_codec_name, decoder_name,
    3772             :                    out_codec_name, encoder_name);
    3773             :         }
    3774        5642 :         av_log(NULL, AV_LOG_INFO, "\n");
    3775             :     }
    3776             : 
    3777        5575 :     if (ret) {
    3778           0 :         av_log(NULL, AV_LOG_ERROR, "%s\n", error);
    3779           0 :         return ret;
    3780             :     }
    3781             : 
    3782        5575 :     atomic_store(&transcode_init_done, 1);
    3783             : 
    3784        5575 :     return 0;
    3785             : }
    3786             : 
    3787             : /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
    3788     1322377 : static int need_output(void)
    3789             : {
    3790             :     int i;
    3791             : 
    3792     1328256 :     for (i = 0; i < nb_output_streams; i++) {
    3793     1322681 :         OutputStream *ost    = output_streams[i];
    3794     1322681 :         OutputFile *of       = output_files[ost->file_index];
    3795     1322681 :         AVFormatContext *os  = output_files[ost->file_index]->ctx;
    3796             : 
    3797     2641626 :         if (ost->finished ||
    3798     2634483 :             (os->pb && avio_tell(os->pb) >= of->limit_filesize))
    3799        3736 :             continue;
    3800     1318945 :         if (ost->frame_number >= ost->max_frames) {
    3801             :             int j;
    3802        4288 :             for (j = 0; j < of->ctx->nb_streams; j++)
    3803        2145 :                 close_output_stream(output_streams[of->ost_index + j]);
    3804        2143 :             continue;
    3805             :         }
    3806             : 
    3807     1316802 :         return 1;
    3808             :     }
    3809             : 
    3810        5575 :     return 0;
    3811             : }
    3812             : 
    3813             : /**
    3814             :  * Select the output stream to process.
    3815             :  *
    3816             :  * @return  selected output stream, or NULL if none available
    3817             :  */
    3818     1316802 : static OutputStream *choose_output(void)
    3819             : {
    3820             :     int i;
    3821     1316802 :     int64_t opts_min = INT64_MAX;
    3822     1316802 :     OutputStream *ost_min = NULL;
    3823             : 
    3824     1727294 :     for (i = 0; i < nb_output_streams; i++) {
    3825     1330736 :         OutputStream *ost = output_streams[i];
    3826     1739084 :         int64_t opts = ost->st->cur_dts == AV_NOPTS_VALUE ? INT64_MIN :
    3827      408348 :                        av_rescale_q(ost->st->cur_dts, ost->st->time_base,
    3828      408348 :                                     AV_TIME_BASE_Q);
    3829     1330736 :         if (ost->st->cur_dts == AV_NOPTS_VALUE)
    3830      922388 :             av_log(NULL, AV_LOG_DEBUG, "cur_dts is invalid (this is harmless if it occurs once at the start per stream)\n");
    3831             : 
    3832     1330736 :         if (!ost->initialized && !ost->inputs_done)
    3833      920244 :             return ost;
    3834             : 
    3835      410492 :         if (!ost->finished && opts < opts_min) {
    3836      401574 :             opts_min = opts;
    3837      401574 :             ost_min  = ost->unavailable ? NULL : ost;
    3838             :         }
    3839             :     }
    3840      396558 :     return ost_min;
    3841             : }
    3842             : 
    3843           0 : static void set_tty_echo(int on)
    3844             : {
    3845             : #if HAVE_TERMIOS_H
    3846             :     struct termios tty;
    3847           0 :     if (tcgetattr(0, &tty) == 0) {
    3848           0 :         if (on) tty.c_lflag |= ECHO;
    3849           0 :         else    tty.c_lflag &= ~ECHO;
    3850           0 :         tcsetattr(0, TCSANOW, &tty);
    3851             :     }
    3852             : #endif
    3853           0 : }
    3854             : 
    3855        3297 : static int check_keyboard_interaction(int64_t cur_time)
    3856             : {
    3857             :     int i, ret, key;
    3858             :     static int64_t last_time;
    3859        3297 :     if (received_nb_signals)
    3860           0 :         return AVERROR_EXIT;
    3861             :     /* read_key() returns 0 on EOF */
    3862        3297 :     if(cur_time - last_time >= 100000 && !run_as_daemon){
    3863          40 :         key =  read_key();
    3864          40 :         last_time = cur_time;
    3865             :     }else
    3866        3257 :         key = -1;
    3867        3297 :     if (key == 'q')
    3868           0 :         return AVERROR_EXIT;
    3869        3297 :     if (key == '+') av_log_set_level(av_log_get_level()+10);
    3870        3297 :     if (key == '-') av_log_set_level(av_log_get_level()-10);
    3871        3297 :     if (key == 's') qp_hist     ^= 1;
    3872        3297 :     if (key == 'h'){
    3873           0 :         if (do_hex_dump){
    3874           0 :             do_hex_dump = do_pkt_dump = 0;
    3875           0 :         } else if(do_pkt_dump){
    3876           0 :             do_hex_dump = 1;
    3877             :         } else
    3878           0 :             do_pkt_dump = 1;
    3879           0 :         av_log_set_level(AV_LOG_DEBUG);
    3880             :     }
    3881        3297 :     if (key == 'c' || key == 'C'){
    3882           0 :         char buf[4096], target[64], command[256], arg[256] = {0};
    3883             :         double time;
    3884           0 :         int k, n = 0;
    3885           0 :         fprintf(stderr, "\nEnter command: <target>|all <time>|-1 <command>[ <argument>]\n");
    3886           0 :         i = 0;
    3887           0 :         set_tty_echo(1);
    3888           0 :         while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
    3889           0 :             if (k > 0)
    3890           0 :                 buf[i++] = k;
    3891           0 :         buf[i] = 0;
    3892           0 :         set_tty_echo(0);
    3893           0 :         fprintf(stderr, "\n");
    3894           0 :         if (k > 0 &&
    3895             :             (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
    3896           0 :             av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
    3897             :                    target, time, command, arg);
    3898           0 :             for (i = 0; i < nb_filtergraphs; i++) {
    3899           0 :                 FilterGraph *fg = filtergraphs[i];
    3900           0 :                 if (fg->graph) {
    3901           0 :                     if (time < 0) {
    3902           0 :                         ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
    3903             :                                                           key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
    3904           0 :                         fprintf(stderr, "Command reply for stream %d: ret:%d res:\n%s", i, ret, buf);
    3905           0 :                     } else if (key == 'c') {
    3906           0 :                         fprintf(stderr, "Queuing commands only on filters supporting the specific command is unsupported\n");
    3907           0 :                         ret = AVERROR_PATCHWELCOME;
    3908             :                     } else {
    3909           0 :                         ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
    3910           0 :                         if (ret < 0)
    3911           0 :                             fprintf(stderr, "Queuing command failed with error %s\n", av_err2str(ret));
    3912             :                     }
    3913             :                 }
    3914             :             }
    3915             :         } else {
    3916           0 :             av_log(NULL, AV_LOG_ERROR,
    3917             :                    "Parse error, at least 3 arguments were expected, "
    3918             :                    "only %d given in string '%s'\n", n, buf);
    3919             :         }
    3920             :     }
    3921        3297 :     if (key == 'd' || key == 'D'){
    3922           0 :         int debug=0;
    3923           0 :         if(key == 'D') {
    3924           0 :             debug = input_streams[0]->st->codec->debug<<1;
    3925           0 :             if(!debug) debug = 1;
    3926           0 :             while(debug & (FF_DEBUG_DCT_COEFF
    3927             : #if FF_API_DEBUG_MV
    3928             :                                              |FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE
    3929             : #endif
    3930             :                                                                                   )) //unsupported, would just crash
    3931           0 :                 debug += debug;
    3932             :         }else{
    3933             :             char buf[32];
    3934           0 :             int k = 0;
    3935           0 :             i = 0;
    3936           0 :             set_tty_echo(1);
    3937           0 :             while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
    3938           0 :                 if (k > 0)
    3939           0 :                     buf[i++] = k;
    3940           0 :             buf[i] = 0;
    3941           0 :             set_tty_echo(0);
    3942           0 :             fprintf(stderr, "\n");
    3943           0 :             if (k <= 0 || sscanf(buf, "%d", &debug)!=1)
    3944           0 :                 fprintf(stderr,"error parsing debug value\n");
    3945             :         }
    3946           0 :         for(i=0;i<nb_input_streams;i++) {
    3947           0 :             input_streams[i]->st->codec->debug = debug;
    3948             :         }
    3949           0 :         for(i=0;i<nb_output_streams;i++) {
    3950           0 :             OutputStream *ost = output_streams[i];
    3951           0 :             ost->enc_ctx->debug = debug;
    3952             :         }
    3953           0 :         if(debug) av_log_set_level(AV_LOG_DEBUG);
    3954           0 :         fprintf(stderr,"debug=%d\n", debug);
    3955             :     }
    3956        3297 :     if (key == '?'){
    3957           0 :         fprintf(stderr, "key    function\n"
    3958             :                         "?      show this help\n"
    3959             :                         "+      increase verbosity\n"
    3960             :                         "-      decrease verbosity\n"
    3961             :                         "c      Send command to first matching filter supporting it\n"
    3962             :                         "C      Send/Queue command to all matching filters\n"
    3963             :                         "D      cycle through available debug modes\n"
    3964             :                         "h      dump packets/hex press to cycle through the 3 states\n"
    3965             :                         "q      quit\n"
    3966             :                         "s      Show QP histogram\n"
    3967             :         );
    3968             :     }
    3969        3297 :     return 0;
    3970             : }
    3971             : 
    3972             : #if HAVE_THREADS
    3973         135 : static void *input_thread(void *arg)
    3974             : {
    3975         135 :     InputFile *f = arg;
    3976         135 :     unsigned flags = f->non_blocking ? AV_THREAD_MESSAGE_NONBLOCK : 0;
    3977         135 :     int ret = 0;
    3978             : 
    3979        6521 :     while (1) {
    3980             :         AVPacket pkt;
    3981        6656 :         ret = av_read_frame(f->ctx, &pkt);
    3982             : 
    3983        6656 :         if (ret == AVERROR(EAGAIN)) {
    3984           0 :             av_usleep(10000);
    3985           0 :             continue;
    3986             :         }
    3987        6656 :         if (ret < 0) {
    3988          44 :             av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
    3989          44 :             break;
    3990             :         }
    3991        6612 :         ret = av_thread_message_queue_send(f->in_thread_queue, &pkt, flags);
    3992        6612 :         if (flags && ret == AVERROR(EAGAIN)) {
    3993          57 :             flags = 0;
    3994          57 :             ret = av_thread_message_queue_send(f->in_thread_queue, &pkt, flags);
    3995          57 :             av_log(f->ctx, AV_LOG_WARNING,
    3996             :                    "Thread message queue blocking; consider raising the "
    3997             :                    "thread_queue_size option (current value: %d)\n",
    3998             :                    f->thread_queue_size);
    3999             :         }
    4000        6612 :         if (ret < 0) {
    4001          91 :             if (ret != AVERROR_EOF)
    4002           0 :                 av_log(f->ctx, AV_LOG_ERROR,
    4003             :                        "Unable to send packet to main thread: %s\n",
    4004           0 :                        av_err2str(ret));
    4005          91 :             av_packet_unref(&pkt);
    4006          91 :             av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
    4007          91 :             break;
    4008             :         }
    4009             :     }
    4010             : 
    4011         270 :     return NULL;
    4012             : }
    4013             : 
    4014       16726 : static void free_input_threads(void)
    4015             : {
    4016             :     int i;
    4017             : 
    4018       33556 :     for (i = 0; i < nb_input_files; i++) {
    4019       16830 :         InputFile *f = input_files[i];
    4020             :         AVPacket pkt;
    4021             : 
    4022       16830 :         if (!f || !f->in_thread_queue)
    4023       16695 :             continue;
    4024         135 :         av_thread_message_queue_set_err_send(f->in_thread_queue, AVERROR_EOF);
    4025         998 :         while (av_thread_message_queue_recv(f->in_thread_queue, &pkt, 0) >= 0)
    4026         728 :             av_packet_unref(&pkt);
    4027             : 
    4028         135 :         pthread_join(f->thread, NULL);
    4029         135 :         f->joined = 1;
    4030         135 :         av_thread_message_queue_free(&f->in_thread_queue);
    4031             :     }
    4032       16726 : }
    4033             : 
    4034        5575 : static int init_input_threads(void)
    4035             : {
    4036             :     int i, ret;
    4037             : 
    4038        5575 :     if (nb_input_files == 1)
    4039        5475 :         return 0;
    4040             : 
    4041         235 :     for (i = 0; i < nb_input_files; i++) {
    4042         135 :         InputFile *f = input_files[i];
    4043             : 
    4044         193 :         if (f->ctx->pb ? !f->ctx->pb->seekable :
    4045          58 :             strcmp(f->ctx->iformat->name, "lavfi"))
    4046          57 :             f->non_blocking = 1;
    4047         135 :         ret = av_thread_message_queue_alloc(&f->in_thread_queue,
    4048         135 :                                             f->thread_queue_size, sizeof(AVPacket));
    4049         135 :         if (ret < 0)
    4050           0 :             return ret;
    4051             : 
    4052         135 :         if ((ret = pthread_create(&f->thread, NULL, input_thread, f))) {
    4053           0 :             av_log(NULL, AV_LOG_ERROR, "pthread_create failed: %s. Try to increase `ulimit -v` or decrease `ulimit -s`.\n", strerror(ret));
    4054           0 :             av_thread_message_queue_free(&f->in_thread_queue);
    4055           0 :             return AVERROR(ret);
    4056             :         }
    4057             :     }
    4058         100 :     return 0;
    4059             : }
    4060             : 
    4061      917743 : static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
    4062             : {
    4063      917743 :     return av_thread_message_queue_recv(f->in_thread_queue, pkt,
    4064      917743 :                                         f->non_blocking ?
    4065             :                                         AV_THREAD_MESSAGE_NONBLOCK : 0);
    4066             : }
    4067             : #endif
    4068             : 
    4069     1312048 : static int get_input_packet(InputFile *f, AVPacket *pkt)
    4070             : {
    4071     1312048 :     if (f->rate_emu) {
    4072             :         int i;
    4073           0 :         for (i = 0; i < f->nb_streams; i++) {
    4074           0 :             InputStream *ist = input_streams[f->ist_index + i];
    4075           0 :             int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
    4076           0 :             int64_t now = av_gettime_relative() - ist->start;
    4077           0 :             if (pts > now)
    4078           0 :                 return AVERROR(EAGAIN);
    4079             :         }
    4080             :     }
    4081             : 
    4082             : #if HAVE_THREADS
    4083     1312048 :     if (nb_input_files > 1)
    4084      917743 :         return get_input_packet_mt(f, pkt);
    4085             : #endif
    4086      394305 :     return av_read_frame(f->ctx, pkt);
    4087             : }
    4088             : 
    4089           2 : static int got_eagain(void)
    4090             : {
    4091             :     int i;
    4092           2 :     for (i = 0; i < nb_output_streams; i++)
    4093           2 :         if (output_streams[i]->unavailable)
    4094           2 :             return 1;
    4095           0 :     return 0;
    4096             : }
    4097             : 
    4098      396509 : static void reset_eagain(void)
    4099             : {
    4100             :     int i;
    4101      799331 :     for (i = 0; i < nb_input_files; i++)
    4102      402822 :         input_files[i]->eagain = 0;
    4103      806939 :     for (i = 0; i < nb_output_streams; i++)
    4104      410430 :         output_streams[i]->unavailable = 0;
    4105      396509 : }
    4106             : 
    4107             : // set duration to max(tmp, duration) in a proper time base and return duration's time_base
    4108           0 : static AVRational duration_max(int64_t tmp, int64_t *duration, AVRational tmp_time_base,
    4109             :                                 AVRational time_base)
    4110             : {
    4111             :     int ret;
    4112             : 
    4113           0 :     if (!*duration) {
    4114           0 :         *duration = tmp;
    4115           0 :         return tmp_time_base;
    4116             :     }
    4117             : 
    4118           0 :     ret = av_compare_ts(*duration, time_base, tmp, tmp_time_base);
    4119           0 :     if (ret < 0) {
    4120           0 :         *duration = tmp;
    4121           0 :         return tmp_time_base;
    4122             :     }
    4123             : 
    4124           0 :     return time_base;
    4125             : }
    4126             : 
    4127           0 : static int seek_to_start(InputFile *ifile, AVFormatContext *is)
    4128             : {
    4129             :     InputStream *ist;
    4130             :     AVCodecContext *avctx;
    4131           0 :     int i, ret, has_audio = 0;
    4132           0 :     int64_t duration = 0;
    4133             : 
    4134           0 :     ret = av_seek_frame(is, -1, is->start_time, 0);
    4135           0 :     if (ret < 0)
    4136           0 :         return ret;
    4137             : 
    4138           0 :     for (i = 0; i < ifile->nb_streams; i++) {
    4139           0 :         ist   = input_streams[ifile->ist_index + i];
    4140           0 :         avctx = ist->dec_ctx;
    4141             : 
    4142             :         /* duration is the length of the last frame in a stream
    4143             :          * when audio stream is present we don't care about
    4144             :          * last video frame length because it's not defined exactly */
    4145           0 :         if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples)
    4146           0 :             has_audio = 1;
    4147             :     }
    4148             : 
    4149           0 :     for (i = 0; i < ifile->nb_streams; i++) {
    4150           0 :         ist   = input_streams[ifile->ist_index + i];
    4151           0 :         avctx = ist->dec_ctx;
    4152             : 
    4153           0 :         if (has_audio) {
    4154           0 :             if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples) {
    4155           0 :                 AVRational sample_rate = {1, avctx->sample_rate};
    4156             : 
    4157           0 :                 duration = av_rescale_q(ist->nb_samples, sample_rate, ist->st->time_base);
    4158             :             } else {
    4159           0 :                 continue;
    4160             :             }
    4161             :         } else {
    4162           0 :             if (ist->framerate.num) {
    4163           0 :                 duration = av_rescale_q(1, av_inv_q(ist->framerate), ist->st->time_base);
    4164           0 :             } else if (ist->st->avg_frame_rate.num) {
    4165           0 :                 duration = av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate), ist->st->time_base);
    4166             :             } else {
    4167           0 :                 duration = 1;
    4168             :             }
    4169             :         }
    4170           0 :         if (!ifile->duration)
    4171           0 :             ifile->time_base = ist->st->time_base;
    4172             :         /* the total duration of the stream, max_pts - min_pts is
    4173             :          * the duration of the stream without the last frame */
    4174           0 :         duration += ist->max_pts - ist->min_pts;
    4175           0 :         ifile->time_base = duration_max(duration, &ifile->duration, ist->st->time_base,
    4176             :                                         ifile->time_base);
    4177             :     }
    4178             : 
    4179           0 :     if (ifile->loop > 0)
    4180           0 :         ifile->loop--;
    4181             : 
    4182           0 :     return ret;
    4183             : }
    4184             : 
    4185             : /*
    4186             :  * Return
    4187             :  * - 0 -- one packet was read and processed
    4188             :  * - AVERROR(EAGAIN) -- no packets were available for selected file,
    4189             :  *   this function should be called again
    4190             :  * - AVERROR_EOF -- this function should not be called again
    4191             :  */
    4192     1312048 : static int process_input(int file_index)
    4193             : {
    4194     1312048 :     InputFile *ifile = input_files[file_index];
    4195             :     AVFormatContext *is;
    4196             :     InputStream *ist;
    4197             :     AVPacket pkt;
    4198             :     int ret, i, j;
    4199             :     int64_t duration;
    4200             :     int64_t pkt_dts;
    4201             : 
    4202     1312048 :     is  = ifile->ctx;
    4203     1312048 :     ret = get_input_packet(ifile, &pkt);
    4204             : 
    4205     1312048 :     if (ret == AVERROR(EAGAIN)) {
    4206      911910 :         ifile->eagain = 1;
    4207      911910 :         return ret;
    4208             :     }
    4209      400138 :     if (ret < 0 && ifile->loop) {
    4210             :         AVCodecContext *avctx;
    4211           0 :         for (i = 0; i < ifile->nb_streams; i++) {
    4212           0 :             ist = input_streams[ifile->ist_index + i];
    4213           0 :             avctx = ist->dec_ctx;
    4214           0 :             if (ist->decoding_needed) {
    4215           0 :                 ret = process_input_packet(ist, NULL, 1);
    4216           0 :                 if (ret>0)
    4217           0 :                     return 0;
    4218           0 :                 avcodec_flush_buffers(avctx);
    4219             :             }
    4220             :         }
    4221           0 :         ret = seek_to_start(ifile, is);
    4222           0 :         if (ret < 0)
    4223           0 :             av_log(NULL, AV_LOG_WARNING, "Seek to start failed.\n");
    4224             :         else
    4225           0 :             ret = get_input_packet(ifile, &pkt);
    4226           0 :         if (ret == AVERROR(EAGAIN)) {
    4227           0 :             ifile->eagain = 1;
    4228           0 :             return ret;
    4229             :         }
    4230             :     }
    4231      400138 :     if (ret < 0) {
    4232        3631 :         if (ret != AVERROR_EOF) {
    4233          75 :             print_error(is->url, ret);
    4234          75 :             if (exit_on_error)
    4235           0 :                 exit_program(1);
    4236             :         }
    4237             : 
    4238        6865 :         for (i = 0; i < ifile->nb_streams; i++) {
    4239        3900 :             ist = input_streams[ifile->ist_index + i];
    4240        3900 :             if (ist->decoding_needed) {
    4241        3501 :                 ret = process_input_packet(ist, NULL, 0);
    4242        3501 :                 if (ret>0)
    4243         666 :                     return 0;
    4244             :             }
    4245             : 
    4246             :             /* mark all outputs that don't go through lavfi as finished */
    4247        6731 :             for (j = 0; j < nb_output_streams; j++) {
    4248        3497 :                 OutputStream *ost = output_streams[j];
    4249             : 
    4250        6530 :                 if (ost->source_index == ifile->ist_index + i &&
    4251        5844 :                     (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
    4252         252 :                     finish_output_stream(ost);
    4253             :             }
    4254             :         }
    4255             : 
    4256        2965 :         ifile->eof_reached = 1;
    4257        2965 :         return AVERROR(EAGAIN);
    4258             :     }
    4259             : 
    4260      396507 :     reset_eagain();
    4261             : 
    4262      396507 :     if (do_pkt_dump) {
    4263           0 :         av_pkt_dump_log2(NULL, AV_LOG_INFO, &pkt, do_hex_dump,
    4264           0 :                          is->streams[pkt.stream_index]);
    4265             :     }
    4266             :     /* the following test is needed in case new streams appear
    4267             :        dynamically in stream : we ignore them */
    4268      396507 :     if (pkt.stream_index >= ifile->nb_streams) {
    4269           0 :         report_new_stream(file_index, &pkt);
    4270           0 :         goto discard_packet;
    4271             :     }
    4272             : 
    4273      396507 :     ist = input_streams[ifile->ist_index + pkt.stream_index];
    4274             : 
    4275      396507 :     ist->data_size += pkt.size;
    4276      396507 :     ist->nb_packets++;
    4277             : 
    4278      396507 :     if (ist->discard)
    4279        7546 :         goto discard_packet;
    4280             : 
    4281      388961 :     if (exit_on_error && (pkt.flags & AV_PKT_FLAG_CORRUPT)) {
    4282           0 :         av_log(NULL, AV_LOG_FATAL, "%s: corrupt input packet in stream %d\n", is->url, pkt.stream_index);
    4283           0 :         exit_program(1);
    4284             :     }
    4285             : 
    4286      388961 :     if (debug_ts) {
    4287           0 :         av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
    4288             :                "next_dts:%s next_dts_time:%s next_pts:%s next_pts_time:%s pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s off:%s off_time:%s\n",
    4289           0 :                ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->dec_ctx->codec_type),
    4290           0 :                av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q),
    4291           0 :                av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q),
    4292           0 :                av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
    4293           0 :                av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
    4294           0 :                av_ts2str(input_files[ist->file_index]->ts_offset),
    4295           0 :                av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
    4296             :     }
    4297             : 
    4298      388961 :     if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
    4299             :         int64_t stime, stime2;
    4300             :         // Correcting starttime based on the enabled streams
    4301             :         // FIXME this ideally should be done before the first use of starttime but we do not know which are the enabled streams at that point.
    4302             :         //       so we instead do it here as part of discontinuity handling
    4303         234 :         if (   ist->next_dts == AV_NOPTS_VALUE
    4304         234 :             && ifile->ts_offset == -is->start_time
    4305         232 :             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
    4306          43 :             int64_t new_start_time = INT64_MAX;
    4307         119 :             for (i=0; i<is->nb_streams; i++) {
    4308          76 :                 AVStream *st = is->streams[i];
    4309          76 :                 if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
    4310          15 :                     continue;
    4311          61 :                 new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
    4312             :             }
    4313          43 :             if (new_start_time > is->start_time) {
    4314           3 :                 av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
    4315           3 :                 ifile->ts_offset = -new_start_time;
    4316             :             }
    4317             :         }
    4318             : 
    4319         234 :         stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
    4320         234 :         stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
    4321         234 :         ist->wrap_correction_done = 1;
    4322             : 
    4323         234 :         if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
    4324           0 :             pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
    4325           0 :             ist->wrap_correction_done = 0;
    4326             :         }
    4327         234 :         if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
    4328           0 :             pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
    4329           0 :             ist->wrap_correction_done = 0;
    4330             :         }
    4331             :     }
    4332             : 
    4333             :     /* add the stream-global side data to the first packet */
    4334      388961 :     if (ist->nb_packets == 1) {
    4335        5889 :         for (i = 0; i < ist->st->nb_side_data; i++) {
    4336         213 :             AVPacketSideData *src_sd = &ist->st->side_data[i];
    4337             :             uint8_t *dst_data;
    4338             : 
    4339         213 :             if (src_sd->type == AV_PKT_DATA_DISPLAYMATRIX)
    4340           1 :                 continue;
    4341             : 
    4342         212 :             if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
    4343           0 :                 continue;
    4344             : 
    4345         212 :             dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
    4346         212 :             if (!dst_data)
    4347           0 :                 exit_program(1);
    4348             : 
    4349         212 :             memcpy(dst_data, src_sd->data, src_sd->size);
    4350             :         }
    4351             :     }
    4352             : 
    4353      388961 :     if (pkt.dts != AV_NOPTS_VALUE)
    4354      353314 :         pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
    4355      388961 :     if (pkt.pts != AV_NOPTS_VALUE)
    4356      351220 :         pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
    4357             : 
    4358      388961 :     if (pkt.pts != AV_NOPTS_VALUE)
    4359      351220 :         pkt.pts *= ist->ts_scale;
    4360      388961 :     if (pkt.dts != AV_NOPTS_VALUE)
    4361      353314 :         pkt.dts *= ist->ts_scale;
    4362             : 
    4363      388961 :     pkt_dts = av_rescale_q_rnd(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q, AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX);
    4364      667647 :     if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
    4365      665981 :          ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) &&
    4366      351650 :         pkt_dts != AV_NOPTS_VALUE && ist->next_dts == AV_NOPTS_VALUE && !copy_ts
    4367        5608 :         && (is->iformat->flags & AVFMT_TS_DISCONT) && ifile->last_ts != AV_NOPTS_VALUE) {
    4368          80 :         int64_t delta   = pkt_dts - ifile->last_ts;
    4369         160 :         if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
    4370          80 :             delta >  1LL*dts_delta_threshold*AV_TIME_BASE){
    4371           0 :             ifile->ts_offset -= delta;
    4372           0 :             av_log(NULL, AV_LOG_DEBUG,
    4373             :                    "Inter stream timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
    4374             :                    delta, ifile->ts_offset);
    4375           0 :             pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
    4376           0 :             if (pkt.pts != AV_NOPTS_VALUE)
    4377           0 :                 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
    4378             :         }
    4379             :     }
    4380             : 
    4381      388961 :     duration = av_rescale_q(ifile->duration, ifile->time_base, ist->st->time_base);
    4382      388961 :     if (pkt.pts != AV_NOPTS_VALUE) {
    4383      351220 :         pkt.pts += duration;
    4384      351220 :         ist->max_pts = FFMAX(pkt.pts, ist->max_pts);
    4385      351220 :         ist->min_pts = FFMIN(pkt.pts, ist->min_pts);
    4386             :     }
    4387             : 
    4388      388961 :     if (pkt.dts != AV_NOPTS_VALUE)
    4389      353314 :         pkt.dts += duration;
    4390             : 
    4391      388961 :     pkt_dts = av_rescale_q_rnd(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q, AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX);
    4392      667647 :     if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
    4393      665981 :          ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) &&
    4394      697691 :          pkt_dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
    4395      346041 :         !copy_ts) {
    4396      345968 :         int64_t delta   = pkt_dts - ist->next_dts;
    4397      345968 :         if (is->iformat->flags & AVFMT_TS_DISCONT) {
    4398       27456 :             if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
    4399       27456 :                 delta >  1LL*dts_delta_threshold*AV_TIME_BASE ||
    4400       13728 :                 pkt_dts + AV_TIME_BASE/10 < FFMAX(ist->pts, ist->dts)) {
    4401           8 :                 ifile->ts_offset -= delta;
    4402           8 :                 av_log(NULL, AV_LOG_DEBUG,
    4403             :                        "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
    4404             :                        delta, ifile->ts_offset);
    4405           8 :                 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
    4406           8 :                 if (pkt.pts != AV_NOPTS_VALUE)
    4407           8 :                     pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
    4408             :             }
    4409             :         } else {
    4410      664480 :             if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
    4411      332240 :                  delta >  1LL*dts_error_threshold*AV_TIME_BASE) {
    4412           0 :                 av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
    4413           0 :                 pkt.dts = AV_NOPTS_VALUE;
    4414             :             }
    4415      332240 :             if (pkt.pts != AV_NOPTS_VALUE){
    4416      330209 :                 int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
    4417      330209 :                 delta   = pkt_pts - ist->next_dts;
    4418      660418 :                 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
    4419      330209 :                      delta >  1LL*dts_error_threshold*AV_TIME_BASE) {
    4420           0 :                     av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
    4421           0 :                     pkt.pts = AV_NOPTS_VALUE;
    4422             :                 }
    4423             :             }
    4424             :         }
    4425             :     }
    4426             : 
    4427      388961 :     if (pkt.dts != AV_NOPTS_VALUE)
    4428      353314 :         ifile->last_ts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
    4429             : 
    4430      388961 :     if (debug_ts) {
    4431           0 :         av_log(NULL, AV_LOG_INFO, "demuxer+ffmpeg -> ist_index:%d type:%s pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s off:%s off_time:%s\n",
    4432           0 :                ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->dec_ctx->codec_type),
    4433           0 :                av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
    4434           0 :                av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
    4435           0 :                av_ts2str(input_files[ist->file_index]->ts_offset),
    4436           0 :                av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
    4437             :     }
    4438             : 
    4439      388961 :     sub2video_heartbeat(ist, pkt.pts);
    4440             : 
    4441      388961 :     process_input_packet(ist, &pkt, 0);
    4442             : 
    4443      396507 : discard_packet:
    4444      396507 :     av_packet_unref(&pkt);
    4445             : 
    4446      396507 :     return 0;
    4447             : }
    4448             : 
    4449             : /**
    4450             :  * Perform a step of transcoding for the specified filter graph.
    4451             :  *
    4452             :  * @param[in]  graph     filter graph to consider
    4453             :  * @param[out] best_ist  input stream where a frame would allow to continue
    4454             :  * @return  0 for success, <0 for error
    4455             :  */
    4456      366383 : static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
    4457             : {
    4458             :     int i, ret;
    4459      366383 :     int nb_requests, nb_requests_max = 0;
    4460             :     InputFilter *ifilter;
    4461             :     InputStream *ist;
    4462             : 
    4463      366383 :     *best_ist = NULL;
    4464      366383 :     ret = avfilter_graph_request_oldest(graph->graph);
    4465      366383 :     if (ret >= 0)
    4466        1446 :         return reap_filters(0);
    4467             : 
    4468      364937 :     if (ret == AVERROR_EOF) {
    4469        3306 :         ret = reap_filters(1);
    4470        6614 :         for (i = 0; i < graph->nb_outputs; i++)
    4471        3308 :             close_output_stream(graph->outputs[i]->ost);
    4472        3306 :         return ret;
    4473             :     }
    4474      361631 :     if (ret != AVERROR(EAGAIN))
    4475           0 :         return ret;
    4476             : 
    4477      727992 :     for (i = 0; i < graph->nb_inputs; i++) {
    4478      366361 :         ifilter = graph->inputs[i];
    4479      366361 :         ist = ifilter->ist;
    4480      732722 :         if (input_files[ist->file_index]->eagain ||
    4481      366361 :             input_files[ist->file_index]->eof_reached)
    4482        1114 :             continue;
    4483      365247 :         nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
    4484      365247 :         if (nb_requests > nb_requests_max) {
    4485      361631 :             nb_requests_max = nb_requests;
    4486      361631 :             *best_ist = ist;
    4487             :         }
    4488             :     }
    4489             : 
    4490      361631 :     if (!*best_ist)
    4491           0 :         for (i = 0; i < graph->nb_outputs; i++)
    4492           0 :             graph->outputs[i]->ost->unavailable = 1;
    4493             : 
    4494      361631 :     return 0;
    4495             : }
    4496             : 
    4497             : /**
    4498             :  * Run a single step of transcoding.
    4499             :  *
    4500             :  * @return  0 for success, <0 for error
    4501             :  */
    4502     1316802 : static int transcode_step(void)
    4503             : {
    4504             :     OutputStream *ost;
    4505     1316802 :     InputStream  *ist = NULL;
    4506             :     int ret;
    4507             : 
    4508     1316802 :     ost = choose_output();
    4509     1316802 :     if (!ost) {
    4510           2 :         if (got_eagain()) {
    4511           2 :             reset_eagain();
    4512           2 :             av_usleep(10000);
    4513           2 :             return 0;
    4514             :         }
    4515           0 :         av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
    4516           0 :         return AVERROR_EOF;
    4517             :     }
    4518             : 
    4519     1316800 :     if (ost->filter && !ost->filter->graph->graph) {
    4520      920244 :         if (ifilter_has_all_input_formats(ost->filter->graph)) {
    4521          34 :             ret = configure_filtergraph(ost->filter->graph);
    4522          34 :             if (ret < 0) {
    4523           0 :                 av_log(NULL, AV_LOG_ERROR, "Error reinitializing filters!\n");
    4524           0 :                 return ret;
    4525             :             }
    4526             :         }
    4527             :     }
    4528             : 
    4529     1316800 :     if (ost->filter && ost->filter->graph->graph) {
    4530      366383 :         if (!ost->initialized) {
    4531          34 :             char error[1024] = {0};
    4532          34 :             ret = init_output_stream(ost, error, sizeof(error));
    4533          34 :             if (ret < 0) {
    4534           0 :                 av_log(NULL, AV_LOG_ERROR, "Error initializing output stream %d:%d -- %s\n",
    4535             :                        ost->file_index, ost->index, error);
    4536           0 :                 exit_program(1);
    4537             :             }
    4538             :         }
    4539      366383 :         if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
    4540           0 :             return ret;
    4541      728014 :         if (!ist)
    4542        4752 :             return 0;
    4543      950417 :     } else if (ost->filter) {
    4544             :         int i;
    4545      960308 :         for (i = 0; i < ost->filter->graph->nb_inputs; i++) {
    4546      960308 :             InputFilter *ifilter = ost->filter->graph->inputs[i];
    4547      960308 :             if (!ifilter->ist->got_output && !input_files[ifilter->ist->file_index]->eof_reached) {
    4548      920210 :                 ist = ifilter->ist;
    4549      920210 :                 break;
    4550             :             }
    4551             :         }
    4552      920210 :         if (!ist) {
    4553           0 :             ost->inputs_done = 1;
    4554           0 :             return 0;
    4555             :         }
    4556             :     } else {
    4557       30207 :         av_assert0(ost->source_index >= 0);
    4558       30207 :         ist = input_streams[ost->source_index];
    4559             :     }
    4560             : 
    4561     1312048 :     ret = process_input(ist->file_index);
    4562     1312048 :     if (ret == AVERROR(EAGAIN)) {
    4563      914875 :         if (input_files[ist->file_index]->eagain)
    4564      911910 :             ost->unavailable = 1;
    4565      914875 :         return 0;
    4566             :     }
    4567             : 
    4568      397173 :     if (ret < 0)
    4569           0 :         return ret == AVERROR_EOF ? 0 : ret;
    4570             : 
    4571      397173 :     return reap_filters(0);
    4572             : }
    4573             : 
    4574             : /*
    4575             :  * The following code is the main loop of the file converter
    4576             :  */
    4577        5575 : static int transcode(void)
    4578             : {
    4579             :     int ret, i;
    4580             :     AVFormatContext *os;
    4581             :     OutputStream *ost;
    4582             :     InputStream *ist;
    4583             :     int64_t timer_start;
    4584        5575 :     int64_t total_packets_written = 0;
    4585             : 
    4586        5575 :     ret = transcode_init();
    4587        5575 :     if (ret < 0)
    4588           0 :         goto fail;
    4589             : 
    4590        5575 :     if (stdin_interaction) {
    4591          15 :         av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
    4592             :     }
    4593             : 
    4594        5575 :     timer_start = av_gettime_relative();
    4595             : 
    4596             : #if HAVE_THREADS
    4597        5575 :     if ((ret = init_input_threads()) < 0)
    4598           0 :         goto fail;
    4599             : #endif
    4600             : 
    4601     1327952 :     while (!received_sigterm) {
    4602     1322377 :         int64_t cur_time= av_gettime_relative();
    4603             : 
    4604             :         /* if 'q' pressed, exits */
    4605     1322377 :         if (stdin_interaction)
    4606        3297 :             if (check_keyboard_interaction(cur_time) < 0)
    4607           0 :                 break;
    4608             : 
    4609             :         /* check if there's any stream where output is still needed */
    4610     1322377 :         if (!need_output()) {
    4611        5575 :             av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
    4612        5575 :             break;
    4613             :         }
    4614             : 
    4615     1316802 :         ret = transcode_step();
    4616     1316802 :         if (ret < 0 && ret != AVERROR_EOF) {
    4617           0 :             av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", av_err2str(ret));
    4618           0 :             break;
    4619             :         }
    4620             : 
    4621             :         /* dump report by using the output first video and audio streams */
    4622     1316802 :         print_report(0, timer_start, cur_time);
    4623             :     }
    4624             : #if HAVE_THREADS
    4625        5575 :     free_input_threads();
    4626             : #endif
    4627             : 
    4628             :     /* at the end of stream, we must flush the decoder buffers */
    4629       11493 :     for (i = 0; i < nb_input_streams; i++) {
    4630        5918 :         ist = input_streams[i];
    4631        5918 :         if (!input_files[ist->file_index]->eof_reached) {
    4632        2688 :             process_input_packet(ist, NULL, 0);
    4633             :         }
    4634             :     }
    4635        5575 :     flush_encoders();
    4636             : 
    4637        5575 :     term_exit();
    4638             : 
    4639             :     /* write the trailer if needed and close file */
    4640       11151 :     for (i = 0; i < nb_output_files; i++) {
    4641        5576 :         os = output_files[i]->ctx;
    4642        5576 :         if (!output_files[i]->header_written) {
    4643           0 :             av_log(NULL, AV_LOG_ERROR,
    4644             :                    "Nothing was written into output file %d (%s), because "
    4645             :                    "at least one of its streams received no packets.\n",
    4646             :                    i, os->url);
    4647           0 :             continue;
    4648             :         }
    4649        5576 :         if ((ret = av_write_trailer(os)) < 0) {
    4650           0 :             av_log(NULL, AV_LOG_ERROR, "Error writing trailer of %s: %s\n", os->url, av_err2str(ret));
    4651           0 :             if (exit_on_error)
    4652           0 :                 exit_program(1);
    4653             :         }
    4654             :     }
    4655             : 
    4656             :     /* dump report by using the first video and audio streams */
    4657        5575 :     print_report(1, timer_start, av_gettime_relative());
    4658             : 
    4659             :     /* close each encoder */
    4660       11289 :     for (i = 0; i < nb_output_streams; i++) {
    4661        5714 :         ost = output_streams[i];
    4662        5714 :         if (ost->encoding_needed) {
    4663        5479 :             av_freep(&ost->enc_ctx->stats_in);
    4664             :         }
    4665        5714 :         total_packets_written += ost->packets_written;
    4666             :     }
    4667             : 
    4668        5575 :     if (!total_packets_written && (abort_on_flags & ABORT_ON_FLAG_EMPTY_OUTPUT)) {
    4669           0 :         av_log(NULL, AV_LOG_FATAL, "Empty output\n");
    4670           0 :         exit_program(1);
    4671             :     }
    4672             : 
    4673             :     /* close each decoder */
    4674       11493 :     for (i = 0; i < nb_input_streams; i++) {
    4675        5918 :         ist = input_streams[i];
    4676        5918 :         if (ist->decoding_needed) {
    4677        5462 :             avcodec_close(ist->dec_ctx);
    4678        5462 :             if (ist->hwaccel_uninit)
    4679           0 :                 ist->hwaccel_uninit(ist->dec_ctx);
    4680             :         }
    4681             :     }
    4682             : 
    4683        5575 :     av_buffer_unref(&hw_device_ctx);
    4684        5575 :     hw_device_free_all();
    4685             : 
    4686             :     /* finished ! */
    4687        5575 :     ret = 0;
    4688             : 
    4689        5575 :  fail:
    4690             : #if HAVE_THREADS
    4691        5575 :     free_input_threads();
    4692             : #endif
    4693             : 
    4694        5575 :     if (output_streams) {
    4695       11288 :         for (i = 0; i < nb_output_streams; i++) {
    4696        5714 :             ost = output_streams[i];
    4697        5714 :             if (ost) {
    4698        5714 :                 if (ost->logfile) {
    4699           0 :                     if (fclose(ost->logfile))
    4700           0 :                         av_log(NULL, AV_LOG_ERROR,
    4701             :                                "Error closing logfile, loss of information possible: %s\n",
    4702           0 :                                av_err2str(AVERROR(errno)));
    4703           0 :                     ost->logfile = NULL;
    4704             :                 }
    4705        5714 :                 av_freep(&ost->forced_kf_pts);
    4706        5714 :                 av_freep(&ost->apad);
    4707        5714 :                 av_freep(&ost->disposition);
    4708        5714 :                 av_dict_free(&ost->encoder_opts);
    4709        5714 :                 av_dict_free(&ost->sws_dict);
    4710        5714 :                 av_dict_free(&ost->swr_opts);
    4711        5714 :                 av_dict_free(&ost->resample_opts);
    4712             :             }
    4713             :         }
    4714             :     }
    4715        5575 :     return ret;
    4716             : }
    4717             : 
    4718             : 
    4719       11150 : static int64_t getutime(void)
    4720             : {
    4721             : #if HAVE_GETRUSAGE
    4722             :     struct rusage rusage;
    4723             : 
    4724       11150 :     getrusage(RUSAGE_SELF, &rusage);
    4725       11150 :     return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
    4726             : #elif HAVE_GETPROCESSTIMES
    4727             :     HANDLE proc;
    4728             :     FILETIME c, e, k, u;
    4729             :     proc = GetCurrentProcess();
    4730             :     GetProcessTimes(proc, &c, &e, &k, &u);
    4731             :     return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
    4732             : #else
    4733             :     return av_gettime_relative();
    4734             : #endif
    4735             : }
    4736             : 
    4737           0 : static int64_t getmaxrss(void)
    4738             : {
    4739             : #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
    4740             :     struct rusage rusage;
    4741           0 :     getrusage(RUSAGE_SELF, &rusage);
    4742           0 :     return (int64_t)rusage.ru_maxrss * 1024;
    4743             : #elif HAVE_GETPROCESSMEMORYINFO
    4744             :     HANDLE proc;
    4745             :     PROCESS_MEMORY_COUNTERS memcounters;
    4746             :     proc = GetCurrentProcess();
    4747             :     memcounters.cb = sizeof(memcounters);
    4748             :     GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
    4749             :     return memcounters.PeakPagefileUsage;
    4750             : #else
    4751             :     return 0;
    4752             : #endif
    4753             : }
    4754             : 
    4755           0 : static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
    4756             : {
    4757           0 : }
    4758             : 
    4759        5576 : int main(int argc, char **argv)
    4760             : {
    4761             :     int i, ret;
    4762             :     int64_t ti;
    4763             : 
    4764        5576 :     init_dynload();
    4765             : 
    4766        5576 :     register_exit(ffmpeg_cleanup);
    4767             : 
    4768        5576 :     setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
    4769             : 
    4770        5576 :     av_log_set_flags(AV_LOG_SKIP_REPEATED);
    4771        5576 :     parse_loglevel(argc, argv, options);
    4772             : 
    4773        5576 :     if(argc>1 && !strcmp(argv[1], "-d")){
    4774           0 :         run_as_daemon=1;
    4775           0 :         av_log_set_callback(log_callback_null);
    4776           0 :         argc--;
    4777           0 :         argv++;
    4778             :     }
    4779             : 
    4780             : #if CONFIG_AVDEVICE
    4781        5576 :     avdevice_register_all();
    4782             : #endif
    4783        5576 :     avformat_network_init();
    4784             : 
    4785        5576 :     show_banner(argc, argv, options);
    4786             : 
    4787             :     /* parse options and open all input/output files */
    4788        5576 :     ret = ffmpeg_parse_options(argc, argv);
    4789        5575 :     if (ret < 0)
    4790           0 :         exit_program(1);
    4791             : 
    4792        5575 :     if (nb_output_files <= 0 && nb_input_files == 0) {
    4793           0 :         show_usage();
    4794           0 :         av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
    4795           0 :         exit_program(1);
    4796             :     }
    4797             : 
    4798             :     /* file converter / grab */
    4799        5575 :     if (nb_output_files <= 0) {
    4800           0 :         av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
    4801           0 :         exit_program(1);
    4802             :     }
    4803             : 
    4804             : //     if (nb_input_files == 0) {
    4805             : //         av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
    4806             : //         exit_program(1);
    4807             : //     }
    4808             : 
    4809       11151 :     for (i = 0; i < nb_output_files; i++) {
    4810        5576 :         if (strcmp(output_files[i]->ctx->oformat->name, "rtp"))
    4811        5576 :             want_sdp = 0;
    4812             :     }
    4813             : 
    4814        5575 :     current_time = ti = getutime();
    4815        5575 :     if (transcode() < 0)
    4816           0 :         exit_program(1);
    4817        5575 :     ti = getutime() - ti;
    4818        5575 :     if (do_benchmark) {
    4819           0 :         av_log(NULL, AV_LOG_INFO, "bench: utime=%0.3fs\n", ti / 1000000.0);
    4820             :     }
    4821        5575 :     av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n",
    4822             :            decode_error_stat[0], decode_error_stat[1]);
    4823        5575 :     if ((decode_error_stat[0] + decode_error_stat[1]) * max_error_rate < decode_error_stat[1])
    4824           0 :         exit_program(69);
    4825             : 
    4826        5575 :     exit_program(received_nb_signals ? 255 : main_return_code);
    4827             :     return main_return_code;
    4828             : }

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