LCOV - code coverage report
Current view: top level - src - ffmpeg.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 1894 2656 71.3 %
Date: 2017-03-16 17:17:40 Functions: 71 83 85.5 %

          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 <stdint.h>
      34             : 
      35             : #if HAVE_IO_H
      36             : #include <io.h>
      37             : #endif
      38             : #if HAVE_UNISTD_H
      39             : #include <unistd.h>
      40             : #endif
      41             : 
      42             : #include "libavformat/avformat.h"
      43             : #include "libavdevice/avdevice.h"
      44             : #include "libswresample/swresample.h"
      45             : #include "libavutil/opt.h"
      46             : #include "libavutil/channel_layout.h"
      47             : #include "libavutil/parseutils.h"
      48             : #include "libavutil/samplefmt.h"
      49             : #include "libavutil/fifo.h"
      50             : #include "libavutil/internal.h"
      51             : #include "libavutil/intreadwrite.h"
      52             : #include "libavutil/dict.h"
      53             : #include "libavutil/mathematics.h"
      54             : #include "libavutil/pixdesc.h"
      55             : #include "libavutil/avstring.h"
      56             : #include "libavutil/libm.h"
      57             : #include "libavutil/imgutils.h"
      58             : #include "libavutil/timestamp.h"
      59             : #include "libavutil/bprint.h"
      60             : #include "libavutil/time.h"
      61             : #include "libavutil/threadmessage.h"
      62             : #include "libavcodec/mathops.h"
      63             : #include "libavformat/os_support.h"
      64             : 
      65             : # include "libavfilter/avfilter.h"
      66             : # include "libavfilter/buffersrc.h"
      67             : # include "libavfilter/buffersink.h"
      68             : 
      69             : #if HAVE_SYS_RESOURCE_H
      70             : #include <sys/time.h>
      71             : #include <sys/types.h>
      72             : #include <sys/resource.h>
      73             : #elif HAVE_GETPROCESSTIMES
      74             : #include <windows.h>
      75             : #endif
      76             : #if HAVE_GETPROCESSMEMORYINFO
      77             : #include <windows.h>
      78             : #include <psapi.h>
      79             : #endif
      80             : #if HAVE_SETCONSOLECTRLHANDLER
      81             : #include <windows.h>
      82             : #endif
      83             : 
      84             : 
      85             : #if HAVE_SYS_SELECT_H
      86             : #include <sys/select.h>
      87             : #endif
      88             : 
      89             : #if HAVE_TERMIOS_H
      90             : #include <fcntl.h>
      91             : #include <sys/ioctl.h>
      92             : #include <sys/time.h>
      93             : #include <termios.h>
      94             : #elif HAVE_KBHIT
      95             : #include <conio.h>
      96             : #endif
      97             : 
      98             : #if HAVE_PTHREADS
      99             : #include <pthread.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_PTHREADS
     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         311 : static void sub2video_push_ref(InputStream *ist, int64_t pts)
     217             : {
     218         311 :     AVFrame *frame = ist->sub2video.frame;
     219             :     int i;
     220             : 
     221             :     av_assert1(frame->data[0]);
     222         311 :     ist->sub2video.last_pts = frame->pts = pts;
     223         622 :     for (i = 0; i < ist->nb_filters; i++)
     224         311 :         av_buffersrc_add_frame_flags(ist->filters[i]->filter, frame,
     225             :                                      AV_BUFFERSRC_FLAG_KEEP_REF |
     226             :                                      AV_BUFFERSRC_FLAG_PUSH);
     227         311 : }
     228             : 
     229         117 : void sub2video_update(InputStream *ist, AVSubtitle *sub)
     230             : {
     231         117 :     AVFrame *frame = ist->sub2video.frame;
     232             :     int8_t *dst;
     233             :     int     dst_linesize;
     234             :     int num_rects, i;
     235             :     int64_t pts, end_pts;
     236             : 
     237         117 :     if (!frame)
     238          27 :         return;
     239          90 :     if (sub) {
     240          44 :         pts       = av_rescale_q(sub->pts + sub->start_display_time * 1000LL,
     241          44 :                                  AV_TIME_BASE_Q, ist->st->time_base);
     242          44 :         end_pts   = av_rescale_q(sub->pts + sub->end_display_time   * 1000LL,
     243          44 :                                  AV_TIME_BASE_Q, ist->st->time_base);
     244          44 :         num_rects = sub->num_rects;
     245             :     } else {
     246          46 :         pts       = ist->sub2video.end_pts;
     247          46 :         end_pts   = INT64_MAX;
     248          46 :         num_rects = 0;
     249             :     }
     250          90 :     if (sub2video_get_blank_frame(ist) < 0) {
     251           0 :         av_log(ist->dec_ctx, AV_LOG_ERROR,
     252             :                "Impossible to get a blank canvas.\n");
     253           0 :         return;
     254             :     }
     255          90 :     dst          = frame->data    [0];
     256          90 :     dst_linesize = frame->linesize[0];
     257         134 :     for (i = 0; i < num_rects; i++)
     258          44 :         sub2video_copy_rect(dst, dst_linesize, frame->width, frame->height, sub->rects[i]);
     259          90 :     sub2video_push_ref(ist, pts);
     260          90 :     ist->sub2video.end_pts = end_pts;
     261             : }
     262             : 
     263      376702 : static void sub2video_heartbeat(InputStream *ist, int64_t pts)
     264             : {
     265      376702 :     InputFile *infile = input_files[ist->file_index];
     266             :     int i, j, nb_reqs;
     267             :     int64_t pts2;
     268             : 
     269             :     /* When a frame is read from a file, examine all sub2video streams in
     270             :        the same file and send the sub2video frame again. Otherwise, decoded
     271             :        video frames could be accumulating in the filter graph while a filter
     272             :        (possibly overlay) is desperately waiting for a subtitle frame. */
     273      791912 :     for (i = 0; i < infile->nb_streams; i++) {
     274      415210 :         InputStream *ist2 = input_streams[infile->ist_index + i];
     275      415210 :         if (!ist2->sub2video.frame)
     276      414321 :             continue;
     277             :         /* subtitles seem to be usually muxed ahead of other streams;
     278             :            if not, subtracting a larger time here is necessary */
     279         889 :         pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
     280             :         /* do not send the heartbeat frame if the subtitle is already ahead */
     281         889 :         if (pts2 <= ist2->sub2video.last_pts)
     282           0 :             continue;
     283         889 :         if (pts2 >= ist2->sub2video.end_pts || !ist2->sub2video.frame->data[0])
     284          44 :             sub2video_update(ist2, NULL);
     285        1778 :         for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
     286         889 :             nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
     287         889 :         if (nb_reqs)
     288         221 :             sub2video_push_ref(ist2, pts2);
     289             :     }
     290      376702 : }
     291             : 
     292          29 : static void sub2video_flush(InputStream *ist)
     293             : {
     294             :     int i;
     295             : 
     296          29 :     if (ist->sub2video.end_pts < INT64_MAX)
     297          29 :         sub2video_update(ist, NULL);
     298          31 :     for (i = 0; i < ist->nb_filters; i++)
     299           2 :         av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
     300          29 : }
     301             : 
     302             : /* end of sub2video hack */
     303             : 
     304       10183 : static void term_exit_sigsafe(void)
     305             : {
     306             : #if HAVE_TERMIOS_H
     307       10183 :     if(restore_tty)
     308           4 :         tcsetattr (0, TCSANOW, &oldtty);
     309             : #endif
     310       10183 : }
     311             : 
     312       10183 : void term_exit(void)
     313             : {
     314       10183 :     av_log(NULL, AV_LOG_QUIET, "%s", "");
     315       10183 :     term_exit_sigsafe();
     316       10183 : }
     317             : 
     318             : static volatile int received_sigterm = 0;
     319             : static volatile int received_nb_signals = 0;
     320             : static volatile int transcode_init_done = 0;
     321             : static volatile int ffmpeg_exited = 0;
     322             : static int main_return_code = 0;
     323             : 
     324             : static void
     325           0 : sigterm_handler(int sig)
     326             : {
     327           0 :     received_sigterm = sig;
     328           0 :     received_nb_signals++;
     329           0 :     term_exit_sigsafe();
     330           0 :     if(received_nb_signals > 3) {
     331           0 :         write(2/*STDERR_FILENO*/, "Received > 3 system signals, hard exiting\n",
     332             :                            strlen("Received > 3 system signals, hard exiting\n"));
     333             : 
     334           0 :         exit(123);
     335             :     }
     336           0 : }
     337             : 
     338             : #if HAVE_SETCONSOLECTRLHANDLER
     339             : static BOOL WINAPI CtrlHandler(DWORD fdwCtrlType)
     340             : {
     341             :     av_log(NULL, AV_LOG_DEBUG, "\nReceived windows signal %ld\n", fdwCtrlType);
     342             : 
     343             :     switch (fdwCtrlType)
     344             :     {
     345             :     case CTRL_C_EVENT:
     346             :     case CTRL_BREAK_EVENT:
     347             :         sigterm_handler(SIGINT);
     348             :         return TRUE;
     349             : 
     350             :     case CTRL_CLOSE_EVENT:
     351             :     case CTRL_LOGOFF_EVENT:
     352             :     case CTRL_SHUTDOWN_EVENT:
     353             :         sigterm_handler(SIGTERM);
     354             :         /* Basically, with these 3 events, when we return from this method the
     355             :            process is hard terminated, so stall as long as we need to
     356             :            to try and let the main thread(s) clean up and gracefully terminate
     357             :            (we have at most 5 seconds, but should be done far before that). */
     358             :         while (!ffmpeg_exited) {
     359             :             Sleep(0);
     360             :         }
     361             :         return TRUE;
     362             : 
     363             :     default:
     364             :         av_log(NULL, AV_LOG_ERROR, "Received unknown windows signal %ld\n", fdwCtrlType);
     365             :         return FALSE;
     366             :     }
     367             : }
     368             : #endif
     369             : 
     370        5091 : void term_init(void)
     371             : {
     372             : #if HAVE_TERMIOS_H
     373        5091 :     if (!run_as_daemon && stdin_interaction) {
     374             :         struct termios tty;
     375          10 :         if (tcgetattr (0, &tty) == 0) {
     376           2 :             oldtty = tty;
     377           2 :             restore_tty = 1;
     378             : 
     379           2 :             tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
     380             :                              |INLCR|IGNCR|ICRNL|IXON);
     381           2 :             tty.c_oflag |= OPOST;
     382           2 :             tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
     383           2 :             tty.c_cflag &= ~(CSIZE|PARENB);
     384           2 :             tty.c_cflag |= CS8;
     385           2 :             tty.c_cc[VMIN] = 1;
     386           2 :             tty.c_cc[VTIME] = 0;
     387             : 
     388           2 :             tcsetattr (0, TCSANOW, &tty);
     389             :         }
     390          10 :         signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
     391             :     }
     392             : #endif
     393             : 
     394        5091 :     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).    */
     395        5091 :     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
     396             : #ifdef SIGXCPU
     397        5091 :     signal(SIGXCPU, sigterm_handler);
     398             : #endif
     399             : #if HAVE_SETCONSOLECTRLHANDLER
     400             :     SetConsoleCtrlHandler((PHANDLER_ROUTINE) CtrlHandler, TRUE);
     401             : #endif
     402        5091 : }
     403             : 
     404             : /* read a key without blocking */
     405          34 : static int read_key(void)
     406             : {
     407             :     unsigned char ch;
     408             : #if HAVE_TERMIOS_H
     409          34 :     int n = 1;
     410             :     struct timeval tv;
     411             :     fd_set rfds;
     412             : 
     413          34 :     FD_ZERO(&rfds);
     414          34 :     FD_SET(0, &rfds);
     415          34 :     tv.tv_sec = 0;
     416          34 :     tv.tv_usec = 0;
     417          34 :     n = select(1, &rfds, NULL, NULL, &tv);
     418          34 :     if (n > 0) {
     419          20 :         n = read(0, &ch, 1);
     420          20 :         if (n == 1)
     421           0 :             return ch;
     422             : 
     423          20 :         return n;
     424             :     }
     425             : #elif HAVE_KBHIT
     426             : #    if HAVE_PEEKNAMEDPIPE
     427             :     static int is_pipe;
     428             :     static HANDLE input_handle;
     429             :     DWORD dw, nchars;
     430             :     if(!input_handle){
     431             :         input_handle = GetStdHandle(STD_INPUT_HANDLE);
     432             :         is_pipe = !GetConsoleMode(input_handle, &dw);
     433             :     }
     434             : 
     435             :     if (is_pipe) {
     436             :         /* When running under a GUI, you will end here. */
     437             :         if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL)) {
     438             :             // input pipe may have been closed by the program that ran ffmpeg
     439             :             return -1;
     440             :         }
     441             :         //Read it
     442             :         if(nchars != 0) {
     443             :             read(0, &ch, 1);
     444             :             return ch;
     445             :         }else{
     446             :             return -1;
     447             :         }
     448             :     }
     449             : #    endif
     450             :     if(kbhit())
     451             :         return(getch());
     452             : #endif
     453          14 :     return -1;
     454             : }
     455             : 
     456      833581 : static int decode_interrupt_cb(void *ctx)
     457             : {
     458      833581 :     return received_nb_signals > transcode_init_done;
     459             : }
     460             : 
     461             : const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
     462             : 
     463        5092 : static void ffmpeg_cleanup(int ret)
     464             : {
     465             :     int i, j;
     466             : 
     467        5092 :     if (do_benchmark) {
     468           0 :         int maxrss = getmaxrss() / 1024;
     469           0 :         av_log(NULL, AV_LOG_INFO, "bench: maxrss=%ikB\n", maxrss);
     470             :     }
     471             : 
     472       10111 :     for (i = 0; i < nb_filtergraphs; i++) {
     473        5019 :         FilterGraph *fg = filtergraphs[i];
     474        5019 :         avfilter_graph_free(&fg->graph);
     475       10050 :         for (j = 0; j < fg->nb_inputs; j++) {
     476       10062 :             while (av_fifo_size(fg->inputs[j]->frame_queue)) {
     477             :                 AVFrame *frame;
     478           0 :                 av_fifo_generic_read(fg->inputs[j]->frame_queue, &frame,
     479             :                                      sizeof(frame), NULL);
     480           0 :                 av_frame_free(&frame);
     481             :             }
     482        5031 :             av_fifo_free(fg->inputs[j]->frame_queue);
     483        5031 :             if (fg->inputs[j]->ist->sub2video.sub_queue) {
     484           0 :                 while (av_fifo_size(fg->inputs[j]->ist->sub2video.sub_queue)) {
     485             :                     AVSubtitle sub;
     486           0 :                     av_fifo_generic_read(fg->inputs[j]->ist->sub2video.sub_queue,
     487             :                                          &sub, sizeof(sub), NULL);
     488           0 :                     avsubtitle_free(&sub);
     489             :                 }
     490           0 :                 av_fifo_free(fg->inputs[j]->ist->sub2video.sub_queue);
     491             :             }
     492        5031 :             av_buffer_unref(&fg->inputs[j]->hw_frames_ctx);
     493        5031 :             av_freep(&fg->inputs[j]->name);
     494        5031 :             av_freep(&fg->inputs[j]);
     495             :         }
     496        5019 :         av_freep(&fg->inputs);
     497       10040 :         for (j = 0; j < fg->nb_outputs; j++) {
     498        5021 :             av_freep(&fg->outputs[j]->name);
     499        5021 :             av_freep(&fg->outputs[j]->formats);
     500        5021 :             av_freep(&fg->outputs[j]->channel_layouts);
     501        5021 :             av_freep(&fg->outputs[j]->sample_rates);
     502        5021 :             av_freep(&fg->outputs[j]);
     503             :         }
     504        5019 :         av_freep(&fg->outputs);
     505        5019 :         av_freep(&fg->graph_desc);
     506             : 
     507        5019 :         av_freep(&filtergraphs[i]);
     508             :     }
     509        5092 :     av_freep(&filtergraphs);
     510             : 
     511        5092 :     av_freep(&subtitle_out);
     512             : 
     513             :     /* close files */
     514       10184 :     for (i = 0; i < nb_output_files; i++) {
     515        5092 :         OutputFile *of = output_files[i];
     516             :         AVFormatContext *s;
     517        5092 :         if (!of)
     518           0 :             continue;
     519        5092 :         s = of->ctx;
     520        5092 :         if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE))
     521        5051 :             avio_closep(&s->pb);
     522        5092 :         avformat_free_context(s);
     523        5092 :         av_dict_free(&of->opts);
     524             : 
     525        5092 :         av_freep(&output_files[i]);
     526             :     }
     527       10315 :     for (i = 0; i < nb_output_streams; i++) {
     528        5223 :         OutputStream *ost = output_streams[i];
     529             : 
     530        5223 :         if (!ost)
     531           0 :             continue;
     532             : 
     533        5230 :         for (j = 0; j < ost->nb_bitstream_filters; j++)
     534           7 :             av_bsf_free(&ost->bsf_ctx[j]);
     535        5223 :         av_freep(&ost->bsf_ctx);
     536        5223 :         av_freep(&ost->bsf_extradata_updated);
     537             : 
     538        5223 :         av_frame_free(&ost->filtered_frame);
     539        5223 :         av_frame_free(&ost->last_frame);
     540        5223 :         av_dict_free(&ost->encoder_opts);
     541             : 
     542        5223 :         av_parser_close(ost->parser);
     543        5223 :         avcodec_free_context(&ost->parser_avctx);
     544             : 
     545        5223 :         av_freep(&ost->forced_keyframes);
     546        5223 :         av_expr_free(ost->forced_keyframes_pexpr);
     547        5223 :         av_freep(&ost->avfilter);
     548        5223 :         av_freep(&ost->logfile_prefix);
     549             : 
     550        5223 :         av_freep(&ost->audio_channels_map);
     551        5223 :         ost->audio_channels_mapped = 0;
     552             : 
     553        5223 :         av_dict_free(&ost->sws_dict);
     554             : 
     555        5223 :         avcodec_free_context(&ost->enc_ctx);
     556        5223 :         avcodec_parameters_free(&ost->ref_par);
     557             : 
     558        5223 :         if (ost->muxing_queue) {
     559       10446 :             while (av_fifo_size(ost->muxing_queue)) {
     560             :                 AVPacket pkt;
     561           0 :                 av_fifo_generic_read(ost->muxing_queue, &pkt, sizeof(pkt), NULL);
     562           0 :                 av_packet_unref(&pkt);
     563             :             }
     564        5223 :             av_fifo_freep(&ost->muxing_queue);
     565             :         }
     566             : 
     567        5223 :         av_freep(&output_streams[i]);
     568             :     }
     569             : #if HAVE_PTHREADS
     570        5092 :     free_input_threads();
     571             : #endif
     572       10241 :     for (i = 0; i < nb_input_files; i++) {
     573        5149 :         avformat_close_input(&input_files[i]->ctx);
     574        5149 :         av_freep(&input_files[i]);
     575             :     }
     576       10540 :     for (i = 0; i < nb_input_streams; i++) {
     577        5448 :         InputStream *ist = input_streams[i];
     578             : 
     579        5448 :         av_frame_free(&ist->decoded_frame);
     580        5448 :         av_frame_free(&ist->filter_frame);
     581        5448 :         av_dict_free(&ist->decoder_opts);
     582        5448 :         avsubtitle_free(&ist->prev_sub.subtitle);
     583        5448 :         av_frame_free(&ist->sub2video.frame);
     584        5448 :         av_freep(&ist->filters);
     585        5448 :         av_freep(&ist->hwaccel_device);
     586        5448 :         av_freep(&ist->dts_buffer);
     587             : 
     588        5448 :         avcodec_free_context(&ist->dec_ctx);
     589             : 
     590        5448 :         av_freep(&input_streams[i]);
     591             :     }
     592             : 
     593        5092 :     if (vstats_file) {
     594           0 :         if (fclose(vstats_file))
     595           0 :             av_log(NULL, AV_LOG_ERROR,
     596             :                    "Error closing vstats file, loss of information possible: %s\n",
     597           0 :                    av_err2str(AVERROR(errno)));
     598             :     }
     599        5092 :     av_freep(&vstats_filename);
     600             : 
     601        5092 :     av_freep(&input_streams);
     602        5092 :     av_freep(&input_files);
     603        5092 :     av_freep(&output_streams);
     604        5092 :     av_freep(&output_files);
     605             : 
     606        5092 :     uninit_opts();
     607             : 
     608        5092 :     avformat_network_deinit();
     609             : 
     610        5092 :     if (received_sigterm) {
     611           0 :         av_log(NULL, AV_LOG_INFO, "Exiting normally, received signal %d.\n",
     612             :                (int) received_sigterm);
     613        5092 :     } else if (ret && transcode_init_done) {
     614           0 :         av_log(NULL, AV_LOG_INFO, "Conversion failed!\n");
     615             :     }
     616        5092 :     term_exit();
     617        5092 :     ffmpeg_exited = 1;
     618        5092 : }
     619             : 
     620        5149 : void remove_avoptions(AVDictionary **a, AVDictionary *b)
     621             : {
     622        5149 :     AVDictionaryEntry *t = NULL;
     623             : 
     624       26609 :     while ((t = av_dict_get(b, "", t, AV_DICT_IGNORE_SUFFIX))) {
     625       16311 :         av_dict_set(a, t->key, NULL, AV_DICT_MATCH_CASE);
     626             :     }
     627        5149 : }
     628             : 
     629       15255 : void assert_avoptions(AVDictionary *m)
     630             : {
     631             :     AVDictionaryEntry *t;
     632       15255 :     if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
     633           0 :         av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
     634           0 :         exit_program(1);
     635             :     }
     636       15255 : }
     637             : 
     638           0 : static void abort_codec_experimental(AVCodec *c, int encoder)
     639             : {
     640           0 :     exit_program(1);
     641             : }
     642             : 
     643     2345008 : static void update_benchmark(const char *fmt, ...)
     644             : {
     645     2345008 :     if (do_benchmark_all) {
     646           0 :         int64_t t = getutime();
     647             :         va_list va;
     648             :         char buf[1024];
     649             : 
     650           0 :         if (fmt) {
     651           0 :             va_start(va, fmt);
     652           0 :             vsnprintf(buf, sizeof(buf), fmt, va);
     653           0 :             va_end(va);
     654           0 :             av_log(NULL, AV_LOG_INFO, "bench: %8"PRIu64" %s \n", t - current_time, buf);
     655             :         }
     656           0 :         current_time = t;
     657             :     }
     658     2345008 : }
     659             : 
     660           0 : static void close_all_output_streams(OutputStream *ost, OSTFinished this_stream, OSTFinished others)
     661             : {
     662             :     int i;
     663           0 :     for (i = 0; i < nb_output_streams; i++) {
     664           0 :         OutputStream *ost2 = output_streams[i];
     665           0 :         ost2->finished |= ost == ost2 ? this_stream : others;
     666             :     }
     667           0 : }
     668             : 
     669      405288 : static void write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost)
     670             : {
     671      405288 :     AVFormatContext *s = of->ctx;
     672      405288 :     AVStream *st = ost->st;
     673             :     int ret;
     674             : 
     675      405288 :     if (!of->header_written) {
     676         270 :         AVPacket tmp_pkt = {0};
     677             :         /* the muxer is not initialized yet, buffer the packet */
     678         270 :         if (!av_fifo_space(ost->muxing_queue)) {
     679          16 :             int new_size = FFMIN(2 * av_fifo_size(ost->muxing_queue),
     680             :                                  ost->max_muxing_queue_size);
     681          16 :             if (new_size <= av_fifo_size(ost->muxing_queue)) {
     682           0 :                 av_log(NULL, AV_LOG_ERROR,
     683             :                        "Too many packets buffered for output stream %d:%d.\n",
     684           0 :                        ost->file_index, ost->st->index);
     685           0 :                 exit_program(1);
     686             :             }
     687          16 :             ret = av_fifo_realloc2(ost->muxing_queue, new_size);
     688          16 :             if (ret < 0)
     689           0 :                 exit_program(1);
     690             :         }
     691         270 :         ret = av_packet_ref(&tmp_pkt, pkt);
     692         270 :         if (ret < 0)
     693           0 :             exit_program(1);
     694         270 :         av_fifo_generic_write(ost->muxing_queue, &tmp_pkt, sizeof(tmp_pkt), NULL);
     695         270 :         av_packet_unref(pkt);
     696         270 :         return;
     697             :     }
     698             : 
     699      786715 :     if ((st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
     700      687654 :         (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
     701       23321 :         pkt->pts = pkt->dts = AV_NOPTS_VALUE;
     702             : 
     703             :     /*
     704             :      * Audio encoders may split the packets --  #frames in != #packets out.
     705             :      * But there is no reordering, so we can limit the number of output packets
     706             :      * by simply dropping them here.
     707             :      * Counting encoded video frames needs to be done separately because of
     708             :      * reordering, see do_video_out()
     709             :      */
     710      405018 :     if (!(st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && ost->encoding_needed)) {
     711      310645 :         if (ost->frame_number >= ost->max_frames) {
     712         313 :             av_packet_unref(pkt);
     713         313 :             return;
     714             :         }
     715      310332 :         ost->frame_number++;
     716             :     }
     717      404705 :     if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
     718             :         int i;
     719       97959 :         uint8_t *sd = av_packet_get_side_data(pkt, AV_PKT_DATA_QUALITY_STATS,
     720             :                                               NULL);
     721       97959 :         ost->quality = sd ? AV_RL32(sd) : -1;
     722       97959 :         ost->pict_type = sd ? sd[4] : AV_PICTURE_TYPE_NONE;
     723             : 
     724      489795 :         for (i = 0; i<FF_ARRAY_ELEMS(ost->error); i++) {
     725      391836 :             if (sd && i < sd[5])
     726           0 :                 ost->error[i] = AV_RL64(sd + 8 + 8*i);
     727             :             else
     728      391836 :                 ost->error[i] = -1;
     729             :         }
     730             : 
     731       97959 :         if (ost->frame_rate.num && ost->is_cfr) {
     732        8389 :             if (pkt->duration > 0)
     733           0 :                 av_log(NULL, AV_LOG_WARNING, "Overriding packet duration by frame rate, this should not happen\n");
     734        8389 :             pkt->duration = av_rescale_q(1, av_inv_q(ost->frame_rate),
     735             :                                          ost->mux_timebase);
     736             :         }
     737             :     }
     738             : 
     739      404705 :     av_packet_rescale_ts(pkt, ost->mux_timebase, ost->st->time_base);
     740             : 
     741      404705 :     if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS)) {
     742      325055 :         if (pkt->dts != AV_NOPTS_VALUE &&
     743      301215 :             pkt->pts != AV_NOPTS_VALUE &&
     744      150348 :             pkt->dts > pkt->pts) {
     745           0 :             av_log(s, AV_LOG_WARNING, "Invalid DTS: %"PRId64" PTS: %"PRId64" in output stream %d:%d, replacing by guess\n",
     746             :                    pkt->dts, pkt->pts,
     747           0 :                    ost->file_index, ost->st->index);
     748           0 :             pkt->pts =
     749           0 :             pkt->dts = pkt->pts + pkt->dts + ost->last_mux_dts + 1
     750           0 :                      - FFMIN3(pkt->pts, pkt->dts, ost->last_mux_dts + 1)
     751           0 :                      - FFMAX3(pkt->pts, pkt->dts, ost->last_mux_dts + 1);
     752             :         }
     753      347778 :         if ((st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO || st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) &&
     754      323859 :             pkt->dts != AV_NOPTS_VALUE &&
     755      300538 :             !(st->codecpar->codec_id == AV_CODEC_ID_VP9 && ost->stream_copy) &&
     756      150216 :             ost->last_mux_dts != AV_NOPTS_VALUE) {
     757      146449 :             int64_t max = ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
     758      146449 :             if (pkt->dts < max) {
     759           0 :                 int loglevel = max - pkt->dts > 2 || st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG;
     760           0 :                 av_log(s, loglevel, "Non-monotonous DTS in output stream "
     761             :                        "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
     762           0 :                        ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
     763           0 :                 if (exit_on_error) {
     764           0 :                     av_log(NULL, AV_LOG_FATAL, "aborting.\n");
     765           0 :                     exit_program(1);
     766             :                 }
     767           0 :                 av_log(s, loglevel, "changing to %"PRId64". This may result "
     768             :                        "in incorrect timestamps in the output file.\n",
     769             :                        max);
     770           0 :                 if (pkt->pts >= pkt->dts)
     771           0 :                     pkt->pts = FFMAX(pkt->pts, max);
     772           0 :                 pkt->dts = max;
     773             :             }
     774             :         }
     775             :     }
     776      404705 :     ost->last_mux_dts = pkt->dts;
     777             : 
     778      404705 :     ost->data_size += pkt->size;
     779      404705 :     ost->packets_written++;
     780             : 
     781      404705 :     pkt->stream_index = ost->index;
     782             : 
     783      404705 :     if (debug_ts) {
     784           0 :         av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
     785             :                 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
     786           0 :                 av_get_media_type_string(ost->enc_ctx->codec_type),
     787           0 :                 av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
     788           0 :                 av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
     789             :                 pkt->size
     790             :               );
     791             :     }
     792             : 
     793      404705 :     ret = av_interleaved_write_frame(s, pkt);
     794      404705 :     if (ret < 0) {
     795           0 :         print_error("av_interleaved_write_frame()", ret);
     796           0 :         main_return_code = 1;
     797           0 :         close_all_output_streams(ost, MUXER_FINISHED | ENCODER_FINISHED, ENCODER_FINISHED);
     798             :     }
     799      404705 :     av_packet_unref(pkt);
     800             : }
     801             : 
     802        5033 : static void close_output_stream(OutputStream *ost)
     803             : {
     804        5033 :     OutputFile *of = output_files[ost->file_index];
     805             : 
     806        5033 :     ost->finished |= ENCODER_FINISHED;
     807        5033 :     if (of->shortest) {
     808           0 :         int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, AV_TIME_BASE_Q);
     809           0 :         of->recording_time = FFMIN(of->recording_time, end);
     810             :     }
     811        5033 : }
     812             : 
     813      405019 : static void output_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost)
     814             : {
     815      405019 :     int ret = 0;
     816             : 
     817             :     /* apply the output bitstream filters, if any */
     818      405019 :     if (ost->nb_bitstream_filters) {
     819             :         int idx;
     820             : 
     821         309 :         av_packet_split_side_data(pkt);
     822         309 :         ret = av_bsf_send_packet(ost->bsf_ctx[0], pkt);
     823         309 :         if (ret < 0)
     824           0 :             goto finish;
     825             : 
     826         309 :         idx = 1;
     827        1234 :         while (idx) {
     828             :             /* get a packet from the previous filter up the chain */
     829         617 :             ret = av_bsf_receive_packet(ost->bsf_ctx[idx - 1], pkt);
     830         617 :             if (ret == AVERROR(EAGAIN)) {
     831         308 :                 ret = 0;
     832         308 :                 idx--;
     833         308 :                 continue;
     834         309 :             } else if (ret < 0)
     835           1 :                 goto finish;
     836             :             /* HACK! - aac_adtstoasc updates extradata after filtering the first frame when
     837             :              * the api states this shouldn't happen after init(). Propagate it here to the
     838             :              * muxer and to the next filters in the chain to workaround this.
     839             :              * TODO/FIXME - Make aac_adtstoasc use new packet side data instead of changing
     840             :              * par_out->extradata and adapt muxers accordingly to get rid of this. */
     841         308 :             if (!(ost->bsf_extradata_updated[idx - 1] & 1)) {
     842           7 :                 ret = avcodec_parameters_copy(ost->st->codecpar, ost->bsf_ctx[idx - 1]->par_out);
     843           7 :                 if (ret < 0)
     844           0 :                     goto finish;
     845           7 :                 ost->bsf_extradata_updated[idx - 1] |= 1;
     846             :             }
     847             : 
     848             :             /* send it to the next filter down the chain or to the muxer */
     849         308 :             if (idx < ost->nb_bitstream_filters) {
     850             :                 /* HACK/FIXME! - See above */
     851           0 :                 if (!(ost->bsf_extradata_updated[idx] & 2)) {
     852           0 :                     ret = avcodec_parameters_copy(ost->bsf_ctx[idx]->par_out, ost->bsf_ctx[idx - 1]->par_out);
     853           0 :                     if (ret < 0)
     854           0 :                         goto finish;
     855           0 :                     ost->bsf_extradata_updated[idx] |= 2;
     856             :                 }
     857           0 :                 ret = av_bsf_send_packet(ost->bsf_ctx[idx], pkt);
     858           0 :                 if (ret < 0)
     859           0 :                     goto finish;
     860           0 :                 idx++;
     861             :             } else
     862         308 :                 write_packet(of, pkt, ost);
     863             :         }
     864             :     } else
     865      404710 :         write_packet(of, pkt, ost);
     866             : 
     867             : finish:
     868      405019 :     if (ret < 0 && ret != AVERROR_EOF) {
     869           1 :         av_log(NULL, AV_LOG_ERROR, "Error applying bitstream filters to an output "
     870             :                "packet for stream #%d:%d.\n", ost->file_index, ost->index);
     871           1 :         if(exit_on_error)
     872           0 :             exit_program(1);
     873             :     }
     874      405019 : }
     875             : 
     876      385091 : static int check_recording_time(OutputStream *ost)
     877             : {
     878      385091 :     OutputFile *of = output_files[ost->file_index];
     879             : 
     880      391092 :     if (of->recording_time != INT64_MAX &&
     881        6001 :         av_compare_ts(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, of->recording_time,
     882        6001 :                       AV_TIME_BASE_Q) >= 0) {
     883           1 :         close_output_stream(ost);
     884           1 :         return 0;
     885             :     }
     886      385090 :     return 1;
     887             : }
     888             : 
     889      290135 : static void do_audio_out(OutputFile *of, OutputStream *ost,
     890             :                          AVFrame *frame)
     891             : {
     892      290135 :     AVCodecContext *enc = ost->enc_ctx;
     893             :     AVPacket pkt;
     894             :     int ret;
     895             : 
     896      290135 :     av_init_packet(&pkt);
     897      290135 :     pkt.data = NULL;
     898      290135 :     pkt.size = 0;
     899             : 
     900      290135 :     if (!check_recording_time(ost))
     901           0 :         return;
     902             : 
     903      290135 :     if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
     904         341 :         frame->pts = ost->sync_opts;
     905      290135 :     ost->sync_opts = frame->pts + frame->nb_samples;
     906      290135 :     ost->samples_encoded += frame->nb_samples;
     907      290135 :     ost->frames_encoded++;
     908             : 
     909      290135 :     av_assert0(pkt.size || !pkt.data);
     910      290135 :     update_benchmark(NULL);
     911      290135 :     if (debug_ts) {
     912           0 :         av_log(NULL, AV_LOG_INFO, "encoder <- type:audio "
     913             :                "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
     914           0 :                av_ts2str(frame->pts), av_ts2timestr(frame->pts, &enc->time_base),
     915             :                enc->time_base.num, enc->time_base.den);
     916             :     }
     917             : 
     918      290135 :     ret = avcodec_send_frame(enc, frame);
     919      290135 :     if (ret < 0)
     920           0 :         goto error;
     921             : 
     922             :     while (1) {
     923      290116 :         ret = avcodec_receive_packet(enc, &pkt);
     924      580251 :         if (ret == AVERROR(EAGAIN))
     925      290135 :             break;
     926      290116 :         if (ret < 0)
     927           0 :             goto error;
     928             : 
     929      290116 :         update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
     930             : 
     931      290116 :         av_packet_rescale_ts(&pkt, enc->time_base, ost->mux_timebase);
     932             : 
     933      290116 :         if (debug_ts) {
     934           0 :             av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
     935             :                    "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
     936           0 :                    av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &enc->time_base),
     937           0 :                    av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &enc->time_base));
     938             :         }
     939             : 
     940      290116 :         output_packet(of, &pkt, ost);
     941             :     }
     942             : 
     943      290135 :     return;
     944             : error:
     945           0 :     av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
     946           0 :     exit_program(1);
     947             : }
     948             : 
     949         582 : static void do_subtitle_out(OutputFile *of,
     950             :                             OutputStream *ost,
     951             :                             AVSubtitle *sub)
     952             : {
     953         582 :     int subtitle_out_max_size = 1024 * 1024;
     954             :     int subtitle_out_size, nb, i;
     955             :     AVCodecContext *enc;
     956             :     AVPacket pkt;
     957             :     int64_t pts;
     958             : 
     959         582 :     if (sub->pts == AV_NOPTS_VALUE) {
     960           0 :         av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
     961           0 :         if (exit_on_error)
     962           0 :             exit_program(1);
     963           0 :         return;
     964             :     }
     965             : 
     966         582 :     enc = ost->enc_ctx;
     967             : 
     968         582 :     if (!subtitle_out) {
     969          28 :         subtitle_out = av_malloc(subtitle_out_max_size);
     970          28 :         if (!subtitle_out) {
     971           0 :             av_log(NULL, AV_LOG_FATAL, "Failed to allocate subtitle_out\n");
     972           0 :             exit_program(1);
     973             :         }
     974             :     }
     975             : 
     976             :     /* Note: DVB subtitle need one packet to draw them and one other
     977             :        packet to clear them */
     978             :     /* XXX: signal it in the codec context ? */
     979         582 :     if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
     980           0 :         nb = 2;
     981             :     else
     982         582 :         nb = 1;
     983             : 
     984             :     /* shift timestamp to honor -ss and make check_recording_time() work with -t */
     985         582 :     pts = sub->pts;
     986         582 :     if (output_files[ost->file_index]->start_time != AV_NOPTS_VALUE)
     987           0 :         pts -= output_files[ost->file_index]->start_time;
     988        1164 :     for (i = 0; i < nb; i++) {
     989         582 :         unsigned save_num_rects = sub->num_rects;
     990             : 
     991         582 :         ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
     992         582 :         if (!check_recording_time(ost))
     993           0 :             return;
     994             : 
     995         582 :         sub->pts = pts;
     996             :         // start_display_time is required to be 0
     997         582 :         sub->pts               += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
     998         582 :         sub->end_display_time  -= sub->start_display_time;
     999         582 :         sub->start_display_time = 0;
    1000         582 :         if (i == 1)
    1001           0 :             sub->num_rects = 0;
    1002             : 
    1003         582 :         ost->frames_encoded++;
    1004             : 
    1005         582 :         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
    1006             :                                                     subtitle_out_max_size, sub);
    1007         582 :         if (i == 1)
    1008           0 :             sub->num_rects = save_num_rects;
    1009         582 :         if (subtitle_out_size < 0) {
    1010           0 :             av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
    1011           0 :             exit_program(1);
    1012             :         }
    1013             : 
    1014         582 :         av_init_packet(&pkt);
    1015         582 :         pkt.data = subtitle_out;
    1016         582 :         pkt.size = subtitle_out_size;
    1017         582 :         pkt.pts  = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->mux_timebase);
    1018         582 :         pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->mux_timebase);
    1019         582 :         if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
    1020             :             /* XXX: the pts correction is handled here. Maybe handling
    1021             :                it in the codec would be better */
    1022           0 :             if (i == 0)
    1023           0 :                 pkt.pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, ost->mux_timebase);
    1024             :             else
    1025           0 :                 pkt.pts += av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->mux_timebase);
    1026             :         }
    1027         582 :         pkt.dts = pkt.pts;
    1028         582 :         output_packet(of, &pkt, ost);
    1029             :     }
    1030             : }
    1031             : 
    1032       96534 : static void do_video_out(OutputFile *of,
    1033             :                          OutputStream *ost,
    1034             :                          AVFrame *next_picture,
    1035             :                          double sync_ipts)
    1036             : {
    1037             :     int ret, format_video_sync;
    1038             :     AVPacket pkt;
    1039       96534 :     AVCodecContext *enc = ost->enc_ctx;
    1040       96534 :     AVCodecParameters *mux_par = ost->st->codecpar;
    1041             :     AVRational frame_rate;
    1042             :     int nb_frames, nb0_frames, i;
    1043             :     double delta, delta0;
    1044       96534 :     double duration = 0;
    1045       96534 :     int frame_size = 0;
    1046       96534 :     InputStream *ist = NULL;
    1047       96534 :     AVFilterContext *filter = ost->filter->filter;
    1048             : 
    1049       96534 :     if (ost->source_index >= 0)
    1050       95455 :         ist = input_streams[ost->source_index];
    1051             : 
    1052       96534 :     frame_rate = av_buffersink_get_frame_rate(filter);
    1053       96534 :     if (frame_rate.num > 0 && frame_rate.den > 0)
    1054       96534 :         duration = 1/(av_q2d(frame_rate) * av_q2d(enc->time_base));
    1055             : 
    1056       96534 :     if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
    1057       61137 :         duration = FFMIN(duration, 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base)));
    1058             : 
    1059      192971 :     if (!ost->filters_script &&
    1060      187094 :         !ost->filters &&
    1061       88489 :         next_picture &&
    1062       87427 :         ist &&
    1063       87427 :         lrintf(av_frame_get_pkt_duration(next_picture) * av_q2d(ist->st->time_base) / av_q2d(enc->time_base)) > 0) {
    1064       82651 :         duration = lrintf(av_frame_get_pkt_duration(next_picture) * av_q2d(ist->st->time_base) / av_q2d(enc->time_base));
    1065             :     }
    1066             : 
    1067       96534 :     if (!next_picture) {
    1068             :         //end, flushing
    1069        2224 :         nb0_frames = nb_frames = mid_pred(ost->last_nb0_frames[0],
    1070             :                                           ost->last_nb0_frames[1],
    1071             :                                           ost->last_nb0_frames[2]);
    1072             :     } else {
    1073       94310 :         delta0 = sync_ipts - ost->sync_opts; // delta0 is the "drift" between the input frame (next_picture) and where it would fall in the output.
    1074       94310 :         delta  = delta0 + duration;
    1075             : 
    1076             :         /* by default, we output a single frame */
    1077       94310 :         nb0_frames = 0; // tracks the number of times the PREVIOUS frame should be duplicated, mostly for variable framerate (VFR)
    1078       94310 :         nb_frames = 1;
    1079             : 
    1080       94310 :         format_video_sync = video_sync_method;
    1081       94310 :         if (format_video_sync == VSYNC_AUTO) {
    1082       52570 :             if(!strcmp(of->ctx->oformat->name, "avi")) {
    1083       12500 :                 format_video_sync = VSYNC_VFR;
    1084             :             } else
    1085       40070 :                 format_video_sync = (of->ctx->oformat->flags & AVFMT_VARIABLE_FPS) ? ((of->ctx->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : VSYNC_CFR;
    1086       52570 :             if (   ist
    1087       51508 :                 && format_video_sync == VSYNC_CFR
    1088        8039 :                 && input_files[ist->file_index]->ctx->nb_streams == 1
    1089        7049 :                 && input_files[ist->file_index]->input_ts_offset == 0) {
    1090        7049 :                 format_video_sync = VSYNC_VSCFR;
    1091             :             }
    1092       52570 :             if (format_video_sync == VSYNC_CFR && copy_ts) {
    1093           0 :                 format_video_sync = VSYNC_VSCFR;
    1094             :             }
    1095             :         }
    1096       94310 :         ost->is_cfr = (format_video_sync == VSYNC_CFR || format_video_sync == VSYNC_VSCFR);
    1097             : 
    1098       94310 :         if (delta0 < 0 &&
    1099       10503 :             delta > 0 &&
    1100       10105 :             format_video_sync != VSYNC_PASSTHROUGH &&
    1101             :             format_video_sync != VSYNC_DROP) {
    1102        7337 :             if (delta0 < -0.6) {
    1103         464 :                 av_log(NULL, AV_LOG_WARNING, "Past duration %f too large\n", -delta0);
    1104             :             } else
    1105        6873 :                 av_log(NULL, AV_LOG_DEBUG, "Clipping frame in rate conversion by %f\n", -delta0);
    1106        7337 :             sync_ipts = ost->sync_opts;
    1107        7337 :             duration += delta0;
    1108        7337 :             delta0 = 0;
    1109             :         }
    1110             : 
    1111       94310 :         switch (format_video_sync) {
    1112             :         case VSYNC_VSCFR:
    1113        7049 :             if (ost->frame_number == 0 && delta0 >= 0.5) {
    1114           0 :                 av_log(NULL, AV_LOG_DEBUG, "Not duplicating %d initial frames\n", (int)lrintf(delta0));
    1115           0 :                 delta = duration;
    1116           0 :                 delta0 = 0;
    1117           0 :                 ost->sync_opts = lrint(sync_ipts);
    1118             :             }
    1119             :         case VSYNC_CFR:
    1120             :             // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
    1121        8178 :             if (frame_drop_threshold && delta < frame_drop_threshold && ost->frame_number) {
    1122           0 :                 nb_frames = 0;
    1123        8178 :             } else if (delta < -1.1)
    1124           0 :                 nb_frames = 0;
    1125        8178 :             else if (delta > 1.1) {
    1126         375 :                 nb_frames = lrintf(delta);
    1127         375 :                 if (delta0 > 1.1)
    1128           2 :                     nb0_frames = lrintf(delta0 - 0.6);
    1129             :             }
    1130        8178 :             break;
    1131             :         case VSYNC_VFR:
    1132       44534 :             if (delta <= -0.6)
    1133         145 :                 nb_frames = 0;
    1134       44389 :             else if (delta > 0.6)
    1135       43772 :                 ost->sync_opts = lrint(sync_ipts);
    1136       44534 :             break;
    1137             :         case VSYNC_DROP:
    1138             :         case VSYNC_PASSTHROUGH:
    1139       41598 :             ost->sync_opts = lrint(sync_ipts);
    1140       41598 :             break;
    1141             :         default:
    1142           0 :             av_assert0(0);
    1143             :         }
    1144             :     }
    1145             : 
    1146       96534 :     nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
    1147       96534 :     nb0_frames = FFMIN(nb0_frames, nb_frames);
    1148             : 
    1149       96534 :     memmove(ost->last_nb0_frames + 1,
    1150       96534 :             ost->last_nb0_frames,
    1151             :             sizeof(ost->last_nb0_frames[0]) * (FF_ARRAY_ELEMS(ost->last_nb0_frames) - 1));
    1152       96534 :     ost->last_nb0_frames[0] = nb0_frames;
    1153             : 
    1154       96534 :     if (nb0_frames == 0 && ost->last_dropped) {
    1155         145 :         nb_frames_drop++;
    1156         290 :         av_log(NULL, AV_LOG_VERBOSE,
    1157             :                "*** dropping frame %d from stream %d at ts %"PRId64"\n",
    1158         290 :                ost->frame_number, ost->st->index, ost->last_frame->pts);
    1159             :     }
    1160       96534 :     if (nb_frames > (nb0_frames && ost->last_dropped) + (nb_frames > nb0_frames)) {
    1161          49 :         if (nb_frames > dts_error_threshold * 30) {
    1162           0 :             av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
    1163           0 :             nb_frames_drop++;
    1164           0 :             return;
    1165             :         }
    1166          49 :         nb_frames_dup += nb_frames - (nb0_frames && ost->last_dropped) - (nb_frames > nb0_frames);
    1167          49 :         av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
    1168          49 :         if (nb_frames_dup > dup_warning) {
    1169           0 :             av_log(NULL, AV_LOG_WARNING, "More than %d frames duplicated\n", dup_warning);
    1170           0 :             dup_warning *= 10;
    1171             :         }
    1172             :     }
    1173       96534 :     ost->last_dropped = nb_frames == nb0_frames && next_picture;
    1174             : 
    1175             :   /* duplicates frame if needed */
    1176      190907 :   for (i = 0; i < nb_frames; i++) {
    1177             :     AVFrame *in_picture;
    1178       94374 :     av_init_packet(&pkt);
    1179       94374 :     pkt.data = NULL;
    1180       94374 :     pkt.size = 0;
    1181             : 
    1182       94374 :     if (i < nb0_frames && ost->last_frame) {
    1183          69 :         in_picture = ost->last_frame;
    1184             :     } else
    1185       94305 :         in_picture = next_picture;
    1186             : 
    1187       94374 :     if (!in_picture)
    1188           0 :         return;
    1189             : 
    1190       94374 :     in_picture->pts = ost->sync_opts;
    1191             : 
    1192             : #if 1
    1193       94374 :     if (!check_recording_time(ost))
    1194             : #else
    1195             :     if (ost->frame_number >= ost->max_frames)
    1196             : #endif
    1197           1 :         return;
    1198             : 
    1199             : #if FF_API_LAVF_FMT_RAWPICTURE
    1200       94373 :     if (of->ctx->oformat->flags & AVFMT_RAWPICTURE &&
    1201           0 :         enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
    1202             :         /* raw pictures are written as AVPicture structure to
    1203             :            avoid any copies. We support temporarily the older
    1204             :            method. */
    1205           0 :         if (in_picture->interlaced_frame)
    1206           0 :             mux_par->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
    1207             :         else
    1208           0 :             mux_par->field_order = AV_FIELD_PROGRESSIVE;
    1209           0 :         pkt.data   = (uint8_t *)in_picture;
    1210           0 :         pkt.size   =  sizeof(AVPicture);
    1211           0 :         pkt.pts    = av_rescale_q(in_picture->pts, enc->time_base, ost->mux_timebase);
    1212           0 :         pkt.flags |= AV_PKT_FLAG_KEY;
    1213             : 
    1214           0 :         output_packet(of, &pkt, ost);
    1215             :     } else
    1216             : #endif
    1217             :     {
    1218       94373 :         int forced_keyframe = 0;
    1219             :         double pts_time;
    1220             : 
    1221       95253 :         if (enc->flags & (AV_CODEC_FLAG_INTERLACED_DCT | AV_CODEC_FLAG_INTERLACED_ME) &&
    1222         880 :             ost->top_field_first >= 0)
    1223          25 :             in_picture->top_field_first = !!ost->top_field_first;
    1224             : 
    1225       94373 :         if (in_picture->interlaced_frame) {
    1226        6199 :             if (enc->codec->id == AV_CODEC_ID_MJPEG)
    1227           0 :                 mux_par->field_order = in_picture->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
    1228             :             else
    1229        6199 :                 mux_par->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
    1230             :         } else
    1231       88174 :             mux_par->field_order = AV_FIELD_PROGRESSIVE;
    1232             : 
    1233       94373 :         in_picture->quality = enc->global_quality;
    1234       94373 :         in_picture->pict_type = 0;
    1235             : 
    1236      188746 :         pts_time = in_picture->pts != AV_NOPTS_VALUE ?
    1237       94373 :             in_picture->pts * av_q2d(enc->time_base) : NAN;
    1238       94412 :         if (ost->forced_kf_index < ost->forced_kf_count &&
    1239          39 :             in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
    1240           2 :             ost->forced_kf_index++;
    1241           2 :             forced_keyframe = 1;
    1242       94371 :         } else if (ost->forced_keyframes_pexpr) {
    1243             :             double res;
    1244           0 :             ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
    1245           0 :             res = av_expr_eval(ost->forced_keyframes_pexpr,
    1246           0 :                                ost->forced_keyframes_expr_const_values, NULL);
    1247             :             ff_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
    1248             :                     ost->forced_keyframes_expr_const_values[FKF_N],
    1249             :                     ost->forced_keyframes_expr_const_values[FKF_N_FORCED],
    1250             :                     ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N],
    1251             :                     ost->forced_keyframes_expr_const_values[FKF_T],
    1252             :                     ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T],
    1253             :                     res);
    1254           0 :             if (res) {
    1255           0 :                 forced_keyframe = 1;
    1256           0 :                 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] =
    1257           0 :                     ost->forced_keyframes_expr_const_values[FKF_N];
    1258           0 :                 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] =
    1259           0 :                     ost->forced_keyframes_expr_const_values[FKF_T];
    1260           0 :                 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] += 1;
    1261             :             }
    1262             : 
    1263           0 :             ost->forced_keyframes_expr_const_values[FKF_N] += 1;
    1264       94371 :         } else if (   ost->forced_keyframes
    1265          48 :                    && !strncmp(ost->forced_keyframes, "source", 6)
    1266           0 :                    && in_picture->key_frame==1) {
    1267           0 :             forced_keyframe = 1;
    1268             :         }
    1269             : 
    1270       94373 :         if (forced_keyframe) {
    1271           2 :             in_picture->pict_type = AV_PICTURE_TYPE_I;
    1272           2 :             av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
    1273             :         }
    1274             : 
    1275       94373 :         update_benchmark(NULL);
    1276       94373 :         if (debug_ts) {
    1277           0 :             av_log(NULL, AV_LOG_INFO, "encoder <- type:video "
    1278             :                    "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
    1279           0 :                    av_ts2str(in_picture->pts), av_ts2timestr(in_picture->pts, &enc->time_base),
    1280             :                    enc->time_base.num, enc->time_base.den);
    1281             :         }
    1282             : 
    1283       94373 :         ost->frames_encoded++;
    1284             : 
    1285       94373 :         ret = avcodec_send_frame(enc, in_picture);
    1286       94373 :         if (ret < 0)
    1287           0 :             goto error;
    1288             : 
    1289             :         while (1) {
    1290      282747 :             ret = avcodec_receive_packet(enc, &pkt);
    1291      188560 :             update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
    1292      188560 :             if (ret == AVERROR(EAGAIN))
    1293       94373 :                 break;
    1294       94187 :             if (ret < 0)
    1295           0 :                 goto error;
    1296             : 
    1297       94187 :             if (debug_ts) {
    1298           0 :                 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
    1299             :                        "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
    1300           0 :                        av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &enc->time_base),
    1301           0 :                        av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &enc->time_base));
    1302             :             }
    1303             : 
    1304       94187 :             if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & AV_CODEC_CAP_DELAY))
    1305           0 :                 pkt.pts = ost->sync_opts;
    1306             : 
    1307       94187 :             av_packet_rescale_ts(&pkt, enc->time_base, ost->mux_timebase);
    1308             : 
    1309       94187 :             if (debug_ts) {
    1310           0 :                 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
    1311             :                     "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
    1312           0 :                     av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->mux_timebase),
    1313           0 :                     av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->mux_timebase));
    1314             :             }
    1315             : 
    1316       94187 :             frame_size = pkt.size;
    1317       94187 :             output_packet(of, &pkt, ost);
    1318             : 
    1319             :             /* if two pass, output log */
    1320       94187 :             if (ost->logfile && enc->stats_out) {
    1321           0 :                 fprintf(ost->logfile, "%s", enc->stats_out);
    1322             :             }
    1323             :         }
    1324             :     }
    1325       94373 :     ost->sync_opts++;
    1326             :     /*
    1327             :      * For video, number of frames in == number of packets out.
    1328             :      * But there may be reordering, so we can't throw away frames on encoder
    1329             :      * flush, we need to limit them here, before they go into encoder.
    1330             :      */
    1331       94373 :     ost->frame_number++;
    1332             : 
    1333       94373 :     if (vstats_filename && frame_size)
    1334           0 :         do_video_stats(ost, frame_size);
    1335             :   }
    1336             : 
    1337       96533 :     if (!ost->last_frame)
    1338        4105 :         ost->last_frame = av_frame_alloc();
    1339       96533 :     av_frame_unref(ost->last_frame);
    1340       96533 :     if (next_picture && ost->last_frame)
    1341       94309 :         av_frame_ref(ost->last_frame, next_picture);
    1342             :     else
    1343        2224 :         av_frame_free(&ost->last_frame);
    1344             : 
    1345       96533 :     return;
    1346             : error:
    1347           0 :     av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
    1348           0 :     exit_program(1);
    1349             : }
    1350             : 
    1351           0 : static double psnr(double d)
    1352             : {
    1353           0 :     return -10.0 * log10(d);
    1354             : }
    1355             : 
    1356           0 : static void do_video_stats(OutputStream *ost, int frame_size)
    1357             : {
    1358             :     AVCodecContext *enc;
    1359             :     int frame_number;
    1360             :     double ti1, bitrate, avg_bitrate;
    1361             : 
    1362             :     /* this is executed just the first time do_video_stats is called */
    1363           0 :     if (!vstats_file) {
    1364           0 :         vstats_file = fopen(vstats_filename, "w");
    1365           0 :         if (!vstats_file) {
    1366           0 :             perror("fopen");
    1367           0 :             exit_program(1);
    1368             :         }
    1369             :     }
    1370             : 
    1371           0 :     enc = ost->enc_ctx;
    1372           0 :     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
    1373           0 :         frame_number = ost->st->nb_frames;
    1374           0 :         if (vstats_version <= 1) {
    1375           0 :             fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number,
    1376           0 :                     ost->quality / (float)FF_QP2LAMBDA);
    1377             :         } else  {
    1378           0 :             fprintf(vstats_file, "out= %2d st= %2d frame= %5d q= %2.1f ", ost->file_index, ost->index, frame_number,
    1379           0 :                     ost->quality / (float)FF_QP2LAMBDA);
    1380             :         }
    1381             : 
    1382           0 :         if (ost->error[0]>=0 && (enc->flags & AV_CODEC_FLAG_PSNR))
    1383           0 :             fprintf(vstats_file, "PSNR= %6.2f ", psnr(ost->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
    1384             : 
    1385           0 :         fprintf(vstats_file,"f_size= %6d ", frame_size);
    1386             :         /* compute pts value */
    1387           0 :         ti1 = av_stream_get_end_pts(ost->st) * av_q2d(ost->st->time_base);
    1388           0 :         if (ti1 < 0.01)
    1389           0 :             ti1 = 0.01;
    1390             : 
    1391           0 :         bitrate     = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
    1392           0 :         avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
    1393           0 :         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
    1394           0 :                (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
    1395           0 :         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(ost->pict_type));
    1396             :     }
    1397           0 : }
    1398             : 
    1399             : static int init_output_stream(OutputStream *ost, char *error, int error_len);
    1400             : 
    1401         189 : static void finish_output_stream(OutputStream *ost)
    1402             : {
    1403         189 :     OutputFile *of = output_files[ost->file_index];
    1404             :     int i;
    1405             : 
    1406         189 :     ost->finished = ENCODER_FINISHED | MUXER_FINISHED;
    1407             : 
    1408         189 :     if (of->shortest) {
    1409           0 :         for (i = 0; i < of->ctx->nb_streams; i++)
    1410           0 :             output_streams[of->ost_index + i]->finished = ENCODER_FINISHED | MUXER_FINISHED;
    1411             :     }
    1412         189 : }
    1413             : 
    1414             : /**
    1415             :  * Get and encode new output from any of the filtergraphs, without causing
    1416             :  * activity.
    1417             :  *
    1418             :  * @return  0 for success, <0 for severe errors
    1419             :  */
    1420      393887 : static int reap_filters(int flush)
    1421             : {
    1422      393887 :     AVFrame *filtered_frame = NULL;
    1423             :     int i;
    1424             : 
    1425             :     /* Reap all buffers present in the buffer sinks */
    1426      801312 :     for (i = 0; i < nb_output_streams; i++) {
    1427      407425 :         OutputStream *ost = output_streams[i];
    1428      407425 :         OutputFile    *of = output_files[ost->file_index];
    1429             :         AVFilterContext *filter;
    1430      407425 :         AVCodecContext *enc = ost->enc_ctx;
    1431      407425 :         int ret = 0;
    1432             : 
    1433      407425 :         if (!ost->filter || !ost->filter->graph->graph)
    1434       35216 :             continue;
    1435      372209 :         filter = ost->filter->filter;
    1436             : 
    1437      372209 :         if (!ost->initialized) {
    1438             :             char error[1024];
    1439        5021 :             ret = init_output_stream(ost, error, sizeof(error));
    1440        5021 :             if (ret < 0) {
    1441           0 :                 av_log(NULL, AV_LOG_ERROR, "Error initializing output stream %d:%d -- %s\n",
    1442             :                        ost->file_index, ost->index, error);
    1443           0 :                 exit_program(1);
    1444             :             }
    1445             :         }
    1446             : 
    1447      372209 :         if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
    1448           0 :             return AVERROR(ENOMEM);
    1449             :         }
    1450      372209 :         filtered_frame = ost->filtered_frame;
    1451             : 
    1452      384445 :         while (1) {
    1453      756654 :             double float_pts = AV_NOPTS_VALUE; // this is identical to filtered_frame.pts but with higher precision
    1454      756654 :             ret = av_buffersink_get_frame_flags(filter, filtered_frame,
    1455             :                                                AV_BUFFERSINK_FLAG_NO_REQUEST);
    1456      756654 :             if (ret < 0) {
    1457      372209 :                 if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
    1458           0 :                     av_log(NULL, AV_LOG_WARNING,
    1459           0 :                            "Error in av_buffersink_get_frame_flags(): %s\n", av_err2str(ret));
    1460      372209 :                 } else if (flush && ret == AVERROR_EOF) {
    1461        3258 :                     if (av_buffersink_get_type(filter) == AVMEDIA_TYPE_VIDEO)
    1462        2224 :                         do_video_out(of, ost, NULL, AV_NOPTS_VALUE);
    1463             :                 }
    1464      372209 :                 break;
    1465             :             }
    1466      384445 :             if (ost->finished) {
    1467           0 :                 av_frame_unref(filtered_frame);
    1468           0 :                 continue;
    1469             :             }
    1470      384445 :             if (filtered_frame->pts != AV_NOPTS_VALUE) {
    1471      384104 :                 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
    1472      384104 :                 AVRational filter_tb = av_buffersink_get_time_base(filter);
    1473      384104 :                 AVRational tb = enc->time_base;
    1474      384104 :                 int extra_bits = av_clip(29 - av_log2(tb.den), 0, 16);
    1475             : 
    1476      384104 :                 tb.den <<= extra_bits;
    1477      384104 :                 float_pts =
    1478      768208 :                     av_rescale_q(filtered_frame->pts, filter_tb, tb) -
    1479      384104 :                     av_rescale_q(start_time, AV_TIME_BASE_Q, tb);
    1480      384104 :                 float_pts /= 1 << extra_bits;
    1481             :                 // 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
    1482      384104 :                 float_pts += FFSIGN(float_pts) * 1.0 / (1<<17);
    1483             : 
    1484      384104 :                 filtered_frame->pts =
    1485      768208 :                     av_rescale_q(filtered_frame->pts, filter_tb, enc->time_base) -
    1486      384104 :                     av_rescale_q(start_time, AV_TIME_BASE_Q, enc->time_base);
    1487             :             }
    1488             :             //if (ost->source_index >= 0)
    1489             :             //    *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
    1490             : 
    1491      384445 :             switch (av_buffersink_get_type(filter)) {
    1492             :             case AVMEDIA_TYPE_VIDEO:
    1493       94310 :                 if (!ost->frame_aspect_ratio.num)
    1494       94310 :                     enc->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
    1495             : 
    1496       94310 :                 if (debug_ts) {
    1497           0 :                     av_log(NULL, AV_LOG_INFO, "filter -> pts:%s pts_time:%s exact:%f time_base:%d/%d\n",
    1498           0 :                             av_ts2str(filtered_frame->pts), av_ts2timestr(filtered_frame->pts, &enc->time_base),
    1499             :                             float_pts,
    1500             :                             enc->time_base.num, enc->time_base.den);
    1501             :                 }
    1502             : 
    1503       94310 :                 do_video_out(of, ost, filtered_frame, float_pts);
    1504       94310 :                 break;
    1505             :             case AVMEDIA_TYPE_AUDIO:
    1506      580270 :                 if (!(enc->codec->capabilities & AV_CODEC_CAP_PARAM_CHANGE) &&
    1507      290135 :                     enc->channels != av_frame_get_channels(filtered_frame)) {
    1508           0 :                     av_log(NULL, AV_LOG_ERROR,
    1509             :                            "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
    1510           0 :                     break;
    1511             :                 }
    1512      290135 :                 do_audio_out(of, ost, filtered_frame);
    1513      290135 :                 break;
    1514             :             default:
    1515             :                 // TODO support subtitle filters
    1516           0 :                 av_assert0(0);
    1517             :             }
    1518             : 
    1519      384445 :             av_frame_unref(filtered_frame);
    1520             :         }
    1521             :     }
    1522             : 
    1523      393887 :     return 0;
    1524             : }
    1525             : 
    1526        5091 : static void print_final_stats(int64_t total_size)
    1527             : {
    1528        5091 :     uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
    1529        5091 :     uint64_t subtitle_size = 0;
    1530        5091 :     uint64_t data_size = 0;
    1531        5091 :     float percent = -1.0;
    1532             :     int i, j;
    1533        5091 :     int pass1_used = 1;
    1534             : 
    1535       10314 :     for (i = 0; i < nb_output_streams; i++) {
    1536        5223 :         OutputStream *ost = output_streams[i];
    1537        5223 :         switch (ost->enc_ctx->codec_type) {
    1538        4102 :             case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
    1539        1077 :             case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
    1540          34 :             case AVMEDIA_TYPE_SUBTITLE: subtitle_size += ost->data_size; break;
    1541          10 :             default:                 other_size += ost->data_size; break;
    1542             :         }
    1543        5223 :         extra_size += ost->enc_ctx->extradata_size;
    1544        5223 :         data_size  += ost->data_size;
    1545        5223 :         if (   (ost->enc_ctx->flags & (AV_CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))
    1546             :             != AV_CODEC_FLAG_PASS1)
    1547        5223 :             pass1_used = 0;
    1548             :     }
    1549             : 
    1550        5091 :     if (data_size && total_size>0 && total_size >= data_size)
    1551        3462 :         percent = 100.0 * (total_size - data_size) / data_size;
    1552             : 
    1553        5091 :     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: ",
    1554             :            video_size / 1024.0,
    1555             :            audio_size / 1024.0,
    1556             :            subtitle_size / 1024.0,
    1557             :            other_size / 1024.0,
    1558             :            extra_size / 1024.0);
    1559        5091 :     if (percent >= 0.0)
    1560        3462 :         av_log(NULL, AV_LOG_INFO, "%f%%", percent);
    1561             :     else
    1562        1629 :         av_log(NULL, AV_LOG_INFO, "unknown");
    1563        5091 :     av_log(NULL, AV_LOG_INFO, "\n");
    1564             : 
    1565             :     /* print verbose per-stream stats */
    1566       10240 :     for (i = 0; i < nb_input_files; i++) {
    1567        5149 :         InputFile *f = input_files[i];
    1568        5149 :         uint64_t total_packets = 0, total_size = 0;
    1569             : 
    1570        5149 :         av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
    1571        5149 :                i, f->ctx->filename);
    1572             : 
    1573       10597 :         for (j = 0; j < f->nb_streams; j++) {
    1574        5448 :             InputStream *ist = input_streams[f->ist_index + j];
    1575        5448 :             enum AVMediaType type = ist->dec_ctx->codec_type;
    1576             : 
    1577        5448 :             total_size    += ist->data_size;
    1578        5448 :             total_packets += ist->nb_packets;
    1579             : 
    1580        5448 :             av_log(NULL, AV_LOG_VERBOSE, "  Input stream #%d:%d (%s): ",
    1581             :                    i, j, media_type_string(type));
    1582        5448 :             av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
    1583             :                    ist->nb_packets, ist->data_size);
    1584             : 
    1585        5448 :             if (ist->decoding_needed) {
    1586        5057 :                 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
    1587             :                        ist->frames_decoded);
    1588        5057 :                 if (type == AVMEDIA_TYPE_AUDIO)
    1589         999 :                     av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
    1590        5057 :                 av_log(NULL, AV_LOG_VERBOSE, "; ");
    1591             :             }
    1592             : 
    1593        5448 :             av_log(NULL, AV_LOG_VERBOSE, "\n");
    1594             :         }
    1595             : 
    1596        5149 :         av_log(NULL, AV_LOG_VERBOSE, "  Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
    1597             :                total_packets, total_size);
    1598             :     }
    1599             : 
    1600       10183 :     for (i = 0; i < nb_output_files; i++) {
    1601        5092 :         OutputFile *of = output_files[i];
    1602        5092 :         uint64_t total_packets = 0, total_size = 0;
    1603             : 
    1604        5092 :         av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
    1605        5092 :                i, of->ctx->filename);
    1606             : 
    1607       10315 :         for (j = 0; j < of->ctx->nb_streams; j++) {
    1608        5223 :             OutputStream *ost = output_streams[of->ost_index + j];
    1609        5223 :             enum AVMediaType type = ost->enc_ctx->codec_type;
    1610             : 
    1611        5223 :             total_size    += ost->data_size;
    1612        5223 :             total_packets += ost->packets_written;
    1613             : 
    1614        5223 :             av_log(NULL, AV_LOG_VERBOSE, "  Output stream #%d:%d (%s): ",
    1615             :                    i, j, media_type_string(type));
    1616        5223 :             if (ost->encoding_needed) {
    1617        5049 :                 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
    1618             :                        ost->frames_encoded);
    1619        5049 :                 if (type == AVMEDIA_TYPE_AUDIO)
    1620         995 :                     av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
    1621        5049 :                 av_log(NULL, AV_LOG_VERBOSE, "; ");
    1622             :             }
    1623             : 
    1624        5223 :             av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
    1625             :                    ost->packets_written, ost->data_size);
    1626             : 
    1627        5223 :             av_log(NULL, AV_LOG_VERBOSE, "\n");
    1628             :         }
    1629             : 
    1630        5092 :         av_log(NULL, AV_LOG_VERBOSE, "  Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
    1631             :                total_packets, total_size);
    1632             :     }
    1633        5091 :     if(video_size + data_size + audio_size + subtitle_size + extra_size == 0){
    1634           5 :         av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded ");
    1635           5 :         if (pass1_used) {
    1636           1 :             av_log(NULL, AV_LOG_WARNING, "\n");
    1637             :         } else {
    1638           4 :             av_log(NULL, AV_LOG_WARNING, "(check -ss / -t / -frames parameters if used)\n");
    1639             :         }
    1640             :     }
    1641        5091 : }
    1642             : 
    1643     2740606 : static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
    1644             : {
    1645             :     char buf[1024];
    1646             :     AVBPrint buf_script;
    1647             :     OutputStream *ost;
    1648             :     AVFormatContext *oc;
    1649             :     int64_t total_size;
    1650             :     AVCodecContext *enc;
    1651             :     int frame_number, vid, i;
    1652             :     double bitrate;
    1653             :     double speed;
    1654     2740606 :     int64_t pts = INT64_MIN + 1;
    1655             :     static int64_t last_time = -1;
    1656             :     static int qp_histogram[52];
    1657             :     int hours, mins, secs, us;
    1658             :     int ret;
    1659             :     float t;
    1660             : 
    1661     2740606 :     if (!print_stats && !is_last_report && !progress_avio)
    1662     5467755 :         return;
    1663             : 
    1664        8362 :     if (!is_last_report) {
    1665        3271 :         if (last_time == -1) {
    1666          15 :             last_time = cur_time;
    1667          15 :             return;
    1668             :         }
    1669        3256 :         if ((cur_time - last_time) < 500000)
    1670        3252 :             return;
    1671           4 :         last_time = cur_time;
    1672             :     }
    1673             : 
    1674        5095 :     t = (cur_time-timer_start) / 1000000.0;
    1675             : 
    1676             : 
    1677        5095 :     oc = output_files[0]->ctx;
    1678             : 
    1679        5095 :     total_size = avio_size(oc->pb);
    1680        5095 :     if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
    1681        3788 :         total_size = avio_tell(oc->pb);
    1682             : 
    1683        5095 :     buf[0] = '\0';
    1684        5095 :     vid = 0;
    1685        5095 :     av_bprint_init(&buf_script, 0, 1);
    1686       10322 :     for (i = 0; i < nb_output_streams; i++) {
    1687        5227 :         float q = -1;
    1688        5227 :         ost = output_streams[i];
    1689        5227 :         enc = ost->enc_ctx;
    1690        5227 :         if (!ost->stream_copy)
    1691        5054 :             q = ost->quality / (float) FF_QP2LAMBDA;
    1692             : 
    1693        5227 :         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
    1694           7 :             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
    1695           7 :             av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
    1696             :                        ost->file_index, ost->index, q);
    1697             :         }
    1698        5227 :         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
    1699             :             float fps;
    1700             : 
    1701        4096 :             frame_number = ost->frame_number;
    1702        4096 :             fps = t > 1 ? frame_number / t : 0;
    1703        4096 :             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
    1704             :                      frame_number, fps < 9.95, fps, q);
    1705        4096 :             av_bprintf(&buf_script, "frame=%d\n", frame_number);
    1706        4096 :             av_bprintf(&buf_script, "fps=%.1f\n", fps);
    1707        4096 :             av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
    1708             :                        ost->file_index, ost->index, q);
    1709        4096 :             if (is_last_report)
    1710        4095 :                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
    1711        4096 :             if (qp_hist) {
    1712             :                 int j;
    1713           0 :                 int qp = lrintf(q);
    1714           0 :                 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
    1715           0 :                     qp_histogram[qp]++;
    1716           0 :                 for (j = 0; j < 32; j++)
    1717           0 :                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", av_log2(qp_histogram[j] + 1));
    1718             :             }
    1719             : 
    1720        4096 :             if ((enc->flags & AV_CODEC_FLAG_PSNR) && (ost->pict_type != AV_PICTURE_TYPE_NONE || is_last_report)) {
    1721             :                 int j;
    1722           0 :                 double error, error_sum = 0;
    1723           0 :                 double scale, scale_sum = 0;
    1724             :                 double p;
    1725           0 :                 char type[3] = { 'Y','U','V' };
    1726           0 :                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
    1727           0 :                 for (j = 0; j < 3; j++) {
    1728           0 :                     if (is_last_report) {
    1729           0 :                         error = enc->error[j];
    1730           0 :                         scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
    1731             :                     } else {
    1732           0 :                         error = ost->error[j];
    1733           0 :                         scale = enc->width * enc->height * 255.0 * 255.0;
    1734             :                     }
    1735           0 :                     if (j)
    1736           0 :                         scale /= 4;
    1737           0 :                     error_sum += error;
    1738           0 :                     scale_sum += scale;
    1739           0 :                     p = psnr(error / scale);
    1740           0 :                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
    1741           0 :                     av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
    1742           0 :                                ost->file_index, ost->index, type[j] | 32, p);
    1743             :                 }
    1744           0 :                 p = psnr(error_sum / scale_sum);
    1745           0 :                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
    1746           0 :                 av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
    1747             :                            ost->file_index, ost->index, p);
    1748             :             }
    1749        4096 :             vid = 1;
    1750             :         }
    1751             :         /* compute min output value */
    1752        5227 :         if (av_stream_get_end_pts(ost->st) != AV_NOPTS_VALUE)
    1753        5227 :             pts = FFMAX(pts, av_rescale_q(av_stream_get_end_pts(ost->st),
    1754             :                                           ost->st->time_base, AV_TIME_BASE_Q));
    1755        5227 :         if (is_last_report)
    1756        5223 :             nb_frames_drop += ost->last_dropped;
    1757             :     }
    1758             : 
    1759        5095 :     secs = FFABS(pts) / AV_TIME_BASE;
    1760        5095 :     us = FFABS(pts) % AV_TIME_BASE;
    1761        5095 :     mins = secs / 60;
    1762        5095 :     secs %= 60;
    1763        5095 :     hours = mins / 60;
    1764        5095 :     mins %= 60;
    1765             : 
    1766        5095 :     bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
    1767        5095 :     speed = t != 0.0 ? (double)pts / AV_TIME_BASE / t : -1;
    1768             : 
    1769        5095 :     if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
    1770             :                                  "size=N/A time=");
    1771        5051 :     else                snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
    1772             :                                  "size=%8.0fkB time=", total_size / 1024.0);
    1773        5095 :     if (pts < 0)
    1774           1 :         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "-");
    1775        5095 :     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
    1776             :              "%02d:%02d:%02d.%02d ", hours, mins, secs,
    1777        5095 :              (100 * us) / AV_TIME_BASE);
    1778             : 
    1779        5095 :     if (bitrate < 0) {
    1780          53 :         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),"bitrate=N/A");
    1781          53 :         av_bprintf(&buf_script, "bitrate=N/A\n");
    1782             :     }else{
    1783        5042 :         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),"bitrate=%6.1fkbits/s", bitrate);
    1784        5042 :         av_bprintf(&buf_script, "bitrate=%6.1fkbits/s\n", bitrate);
    1785             :     }
    1786             : 
    1787        5095 :     if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
    1788        5051 :     else                av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
    1789        5095 :     av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
    1790        5095 :     av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
    1791             :                hours, mins, secs, us);
    1792             : 
    1793        5095 :     if (nb_frames_dup || nb_frames_drop)
    1794          27 :         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
    1795             :                 nb_frames_dup, nb_frames_drop);
    1796        5095 :     av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
    1797        5095 :     av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
    1798             : 
    1799        5095 :     if (speed < 0) {
    1800           1 :         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf)," speed=N/A");
    1801           1 :         av_bprintf(&buf_script, "speed=N/A\n");
    1802             :     } else {
    1803        5094 :         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf)," speed=%4.3gx", speed);
    1804        5094 :         av_bprintf(&buf_script, "speed=%4.3gx\n", speed);
    1805             :     }
    1806             : 
    1807        5095 :     if (print_stats || is_last_report) {
    1808        5095 :         const char end = is_last_report ? '\n' : '\r';
    1809        5095 :         if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
    1810           0 :             fprintf(stderr, "%s    %c", buf, end);
    1811             :         } else
    1812        5095 :             av_log(NULL, AV_LOG_INFO, "%s    %c", buf, end);
    1813             : 
    1814        5095 :     fflush(stderr);
    1815             :     }
    1816             : 
    1817        5095 :     if (progress_avio) {
    1818           0 :         av_bprintf(&buf_script, "progress=%s\n",
    1819             :                    is_last_report ? "end" : "continue");
    1820           0 :         avio_write(progress_avio, buf_script.str,
    1821           0 :                    FFMIN(buf_script.len, buf_script.size - 1));
    1822           0 :         avio_flush(progress_avio);
    1823           0 :         av_bprint_finalize(&buf_script, NULL);
    1824           0 :         if (is_last_report) {
    1825           0 :             if ((ret = avio_closep(&progress_avio)) < 0)
    1826           0 :                 av_log(NULL, AV_LOG_ERROR,
    1827           0 :                        "Error closing progress log, loss of information possible: %s\n", av_err2str(ret));
    1828             :         }
    1829             :     }
    1830             : 
    1831        5095 :     if (is_last_report)
    1832        5091 :         print_final_stats(total_size);
    1833             : }
    1834             : 
    1835        5091 : static void flush_encoders(void)
    1836             : {
    1837             :     int i, ret;
    1838             : 
    1839       10314 :     for (i = 0; i < nb_output_streams; i++) {
    1840        5223 :         OutputStream   *ost = output_streams[i];
    1841        5223 :         AVCodecContext *enc = ost->enc_ctx;
    1842        5223 :         OutputFile      *of = output_files[ost->file_index];
    1843             : 
    1844        5223 :         if (!ost->encoding_needed)
    1845         174 :             continue;
    1846             : 
    1847             :         // Try to enable encoding with no input frames.
    1848             :         // Maybe we should just let encoding fail instead.
    1849        5049 :         if (!ost->initialized) {
    1850           0 :             FilterGraph *fg = ost->filter->graph;
    1851             :             char error[1024];
    1852             : 
    1853           0 :             av_log(NULL, AV_LOG_WARNING,
    1854             :                    "Finishing stream %d:%d without any data written to it.\n",
    1855           0 :                    ost->file_index, ost->st->index);
    1856             : 
    1857           0 :             if (ost->filter && !fg->graph) {
    1858             :                 int x;
    1859           0 :                 for (x = 0; x < fg->nb_inputs; x++) {
    1860           0 :                     InputFilter *ifilter = fg->inputs[x];
    1861           0 :                     if (ifilter->format < 0) {
    1862           0 :                         AVCodecParameters *par = ifilter->ist->st->codecpar;
    1863             :                         // We never got any input. Set a fake format, which will
    1864             :                         // come from libavformat.
    1865           0 :                         ifilter->format                 = par->format;
    1866           0 :                         ifilter->sample_rate            = par->sample_rate;
    1867           0 :                         ifilter->channels               = par->channels;
    1868           0 :                         ifilter->channel_layout         = par->channel_layout;
    1869           0 :                         ifilter->width                  = par->width;
    1870           0 :                         ifilter->height                 = par->height;
    1871           0 :                         ifilter->sample_aspect_ratio    = par->sample_aspect_ratio;
    1872             :                     }
    1873             :                 }
    1874             : 
    1875           0 :                 if (!ifilter_has_all_input_formats(fg))
    1876           0 :                     continue;
    1877             : 
    1878           0 :                 ret = configure_filtergraph(fg);
    1879           0 :                 if (ret < 0) {
    1880           0 :                     av_log(NULL, AV_LOG_ERROR, "Error configuring filter graph\n");
    1881           0 :                     exit_program(1);
    1882             :                 }
    1883             : 
    1884           0 :                 finish_output_stream(ost);
    1885             :             }
    1886             : 
    1887           0 :             ret = init_output_stream(ost, error, sizeof(error));
    1888           0 :             if (ret < 0) {
    1889           0 :                 av_log(NULL, AV_LOG_ERROR, "Error initializing output stream %d:%d -- %s\n",
    1890             :                        ost->file_index, ost->index, error);
    1891           0 :                 exit_program(1);
    1892             :             }
    1893             :         }
    1894             : 
    1895        5049 :         if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
    1896         909 :             continue;
    1897             : #if FF_API_LAVF_FMT_RAWPICTURE
    1898        4140 :         if (enc->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
    1899           0 :             continue;
    1900             : #endif
    1901             : 
    1902        4140 :         if (enc->codec_type != AVMEDIA_TYPE_VIDEO && enc->codec_type != AVMEDIA_TYPE_AUDIO)
    1903          28 :             continue;
    1904             : 
    1905        4112 :         avcodec_send_frame(enc, NULL);
    1906             : 
    1907         225 :         for (;;) {
    1908        4337 :             const char *desc = NULL;
    1909             :             AVPacket pkt;
    1910             :             int pkt_size;
    1911             : 
    1912        4337 :             switch (enc->codec_type) {
    1913             :             case AVMEDIA_TYPE_AUDIO:
    1914         125 :                 desc   = "audio";
    1915         125 :                 break;
    1916             :             case AVMEDIA_TYPE_VIDEO:
    1917        4212 :                 desc   = "video";
    1918        4212 :                 break;
    1919             :             default:
    1920           0 :                 av_assert0(0);
    1921             :             }
    1922             : 
    1923        4337 :                 av_init_packet(&pkt);
    1924        4337 :                 pkt.data = NULL;
    1925        4337 :                 pkt.size = 0;
    1926             : 
    1927        4337 :                 update_benchmark(NULL);
    1928        4337 :                 ret = avcodec_receive_packet(enc, &pkt);
    1929        4337 :                 update_benchmark("flush_%s %d.%d", desc, ost->file_index, ost->index);
    1930        4337 :                 if (ret < 0 && ret != AVERROR_EOF) {
    1931           0 :                     av_log(NULL, AV_LOG_FATAL, "%s encoding failed: %s\n",
    1932             :                            desc,
    1933           0 :                            av_err2str(ret));
    1934           0 :                     exit_program(1);
    1935             :                 }
    1936        4337 :                 if (ost->logfile && enc->stats_out) {
    1937           0 :                     fprintf(ost->logfile, "%s", enc->stats_out);
    1938             :                 }
    1939        4337 :                 if (ret == AVERROR_EOF) {
    1940        4112 :                     break;
    1941             :                 }
    1942         225 :                 if (ost->finished & MUXER_FINISHED) {
    1943           0 :                     av_packet_unref(&pkt);
    1944           0 :                     continue;
    1945             :                 }
    1946         225 :                 av_packet_rescale_ts(&pkt, enc->time_base, ost->mux_timebase);
    1947         225 :                 pkt_size = pkt.size;
    1948         225 :                 output_packet(of, &pkt, ost);
    1949         225 :                 if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO && vstats_filename) {
    1950           0 :                     do_video_stats(ost, pkt_size);
    1951             :                 }
    1952             :         }
    1953             :     }
    1954        5091 : }
    1955             : 
    1956             : /*
    1957             :  * Check whether a packet from ist should be written into ost at this time
    1958             :  */
    1959      390106 : static int check_output_constraints(InputStream *ist, OutputStream *ost)
    1960             : {
    1961      390106 :     OutputFile *of = output_files[ost->file_index];
    1962      390106 :     int ist_index  = input_files[ist->file_index]->ist_index + ist->st->index;
    1963             : 
    1964      390106 :     if (ost->source_index != ist_index)
    1965       15755 :         return 0;
    1966             : 
    1967      374351 :     if (ost->finished)
    1968          24 :         return 0;
    1969             : 
    1970      374327 :     if (of->start_time != AV_NOPTS_VALUE && ist->pts < of->start_time)
    1971           0 :         return 0;
    1972             : 
    1973      374327 :     return 1;
    1974             : }
    1975             : 
    1976       19927 : static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
    1977             : {
    1978       19927 :     OutputFile *of = output_files[ost->file_index];
    1979       19927 :     InputFile   *f = input_files [ist->file_index];
    1980       19927 :     int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
    1981       19927 :     int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->mux_timebase);
    1982             :     AVPicture pict;
    1983             :     AVPacket opkt;
    1984             : 
    1985       19927 :     av_init_packet(&opkt);
    1986             : 
    1987       19938 :     if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
    1988          11 :         !ost->copy_initial_nonkeyframes)
    1989          29 :         return;
    1990             : 
    1991       19916 :     if (!ost->frame_number && !ost->copy_prior_start) {
    1992           0 :         int64_t comp_start = start_time;
    1993           0 :         if (copy_ts && f->start_time != AV_NOPTS_VALUE)
    1994           0 :             comp_start = FFMAX(start_time, f->start_time + f->ts_offset);
    1995           0 :         if (pkt->pts == AV_NOPTS_VALUE ?
    1996           0 :             ist->pts < comp_start :
    1997           0 :             pkt->pts < av_rescale_q(comp_start, AV_TIME_BASE_Q, ist->st->time_base))
    1998           0 :             return;
    1999             :     }
    2000             : 
    2001       20332 :     if (of->recording_time != INT64_MAX &&
    2002         416 :         ist->pts >= of->recording_time + start_time) {
    2003           5 :         close_output_stream(ost);
    2004           5 :         return;
    2005             :     }
    2006             : 
    2007       19911 :     if (f->recording_time != INT64_MAX) {
    2008         148 :         start_time = f->ctx->start_time;
    2009         148 :         if (f->start_time != AV_NOPTS_VALUE && copy_ts)
    2010          74 :             start_time += f->start_time;
    2011         148 :         if (ist->pts >= f->recording_time + start_time) {
    2012           2 :             close_output_stream(ost);
    2013           2 :             return;
    2014             :         }
    2015             :     }
    2016             : 
    2017             :     /* force the input stream PTS */
    2018       19909 :     if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
    2019        3587 :         ost->sync_opts++;
    2020             : 
    2021       19909 :     if (pkt->pts != AV_NOPTS_VALUE)
    2022       19380 :         opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->mux_timebase) - ost_tb_start_time;
    2023             :     else
    2024         529 :         opkt.pts = AV_NOPTS_VALUE;
    2025             : 
    2026       19909 :     if (pkt->dts == AV_NOPTS_VALUE)
    2027         285 :         opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->mux_timebase);
    2028             :     else
    2029       19624 :         opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->mux_timebase);
    2030       19909 :     opkt.dts -= ost_tb_start_time;
    2031             : 
    2032       19909 :     if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
    2033       15802 :         int duration = av_get_audio_frame_duration(ist->dec_ctx, pkt->size);
    2034       15802 :         if(!duration)
    2035        4776 :             duration = ist->dec_ctx->frame_size;
    2036       47406 :         opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
    2037       15802 :                                                (AVRational){1, ist->dec_ctx->sample_rate}, duration, &ist->filter_in_rescale_delta_last,
    2038       15802 :                                                ost->mux_timebase) - ost_tb_start_time;
    2039             :     }
    2040             : 
    2041       19909 :     opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->mux_timebase);
    2042             : 
    2043       19909 :     opkt.flags    = pkt->flags;
    2044             :     // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
    2045       19909 :     if (  ost->st->codecpar->codec_id != AV_CODEC_ID_H264
    2046       18370 :        && ost->st->codecpar->codec_id != AV_CODEC_ID_MPEG1VIDEO
    2047       18370 :        && ost->st->codecpar->codec_id != AV_CODEC_ID_MPEG2VIDEO
    2048       18276 :        && ost->st->codecpar->codec_id != AV_CODEC_ID_VC1
    2049       18276 :        ) {
    2050       36552 :         int ret = av_parser_change(ost->parser, ost->parser_avctx,
    2051             :                              &opkt.data, &opkt.size,
    2052       18276 :                              pkt->data, pkt->size,
    2053       18276 :                              pkt->flags & AV_PKT_FLAG_KEY);
    2054       18276 :         if (ret < 0) {
    2055           0 :             av_log(NULL, AV_LOG_FATAL, "av_parser_change failed: %s\n",
    2056           0 :                    av_err2str(ret));
    2057           0 :             exit_program(1);
    2058             :         }
    2059       18276 :         if (ret) {
    2060           0 :             opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
    2061           0 :             if (!opkt.buf)
    2062           0 :                 exit_program(1);
    2063             :         }
    2064             :     } else {
    2065        1633 :         opkt.data = pkt->data;
    2066        1633 :         opkt.size = pkt->size;
    2067             :     }
    2068       19909 :     av_copy_packet_side_data(&opkt, pkt);
    2069             : 
    2070             : #if FF_API_LAVF_FMT_RAWPICTURE
    2071       23496 :     if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
    2072        3631 :         ost->st->codecpar->codec_id == AV_CODEC_ID_RAWVIDEO &&
    2073          44 :         (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
    2074             :         /* store AVPicture in AVPacket, as expected by the output format */
    2075           0 :         int ret = avpicture_fill(&pict, opkt.data, ost->st->codecpar->format, ost->st->codecpar->width, ost->st->codecpar->height);
    2076           0 :         if (ret < 0) {
    2077           0 :             av_log(NULL, AV_LOG_FATAL, "avpicture_fill failed: %s\n",
    2078           0 :                    av_err2str(ret));
    2079           0 :             exit_program(1);
    2080             :         }
    2081           0 :         opkt.data = (uint8_t *)&pict;
    2082           0 :         opkt.size = sizeof(AVPicture);
    2083           0 :         opkt.flags |= AV_PKT_FLAG_KEY;
    2084             :     }
    2085             : #endif
    2086             : 
    2087       19909 :     output_packet(of, &opkt, ost);
    2088             : }
    2089             : 
    2090        1214 : int guess_input_channel_layout(InputStream *ist)
    2091             : {
    2092        1214 :     AVCodecContext *dec = ist->dec_ctx;
    2093             : 
    2094        1214 :     if (!dec->channel_layout) {
    2095             :         char layout_name[256];
    2096             : 
    2097         661 :         if (dec->channels > ist->guess_layout_max)
    2098           4 :             return 0;
    2099         659 :         dec->channel_layout = av_get_default_channel_layout(dec->channels);
    2100         659 :         if (!dec->channel_layout)
    2101           0 :             return 0;
    2102         659 :         av_get_channel_layout_string(layout_name, sizeof(layout_name),
    2103             :                                      dec->channels, dec->channel_layout);
    2104         659 :         av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
    2105         659 :                "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
    2106             :     }
    2107        1212 :     return 1;
    2108             : }
    2109             : 
    2110      732511 : static void check_decode_result(InputStream *ist, int *got_output, int ret)
    2111             : {
    2112      732511 :     if (*got_output || ret<0)
    2113      378244 :         decode_error_stat[ret<0] ++;
    2114             : 
    2115      732511 :     if (ret < 0 && exit_on_error)
    2116           0 :         exit_program(1);
    2117             : 
    2118      732511 :     if (exit_on_error && *got_output && ist) {
    2119           0 :         if (av_frame_get_decode_error_flags(ist->decoded_frame) || (ist->decoded_frame->flags & AV_FRAME_FLAG_CORRUPT)) {
    2120           0 :             av_log(NULL, AV_LOG_FATAL, "%s: corrupt decoded frame in stream %d\n", input_files[ist->file_index]->ctx->filename, ist->st->index);
    2121           0 :             exit_program(1);
    2122             :         }
    2123             :     }
    2124      732511 : }
    2125             : 
    2126             : // Filters can be configured only if the formats of all inputs are known.
    2127     2356969 : static int ifilter_has_all_input_formats(FilterGraph *fg)
    2128             : {
    2129             :     int i;
    2130     2424343 :     for (i = 0; i < fg->nb_inputs; i++) {
    2131     4771139 :         if (fg->inputs[i]->format < 0 && (fg->inputs[i]->type == AVMEDIA_TYPE_AUDIO ||
    2132     2351872 :                                           fg->inputs[i]->type == AVMEDIA_TYPE_VIDEO))
    2133     2351893 :             return 0;
    2134             :     }
    2135        5076 :     return 1;
    2136             : }
    2137             : 
    2138      377662 : static int ifilter_send_frame(InputFilter *ifilter, AVFrame *frame)
    2139             : {
    2140      377662 :     FilterGraph *fg = ifilter->graph;
    2141             :     int need_reinit, ret, i;
    2142             : 
    2143             :     /* determine if the parameters for this input changed */
    2144      377662 :     need_reinit = ifilter->format != frame->format;
    2145      755324 :     if (!!ifilter->hw_frames_ctx != !!frame->hw_frames_ctx ||
    2146      377662 :         (ifilter->hw_frames_ctx && ifilter->hw_frames_ctx->data != frame->hw_frames_ctx->data))
    2147           0 :         need_reinit = 1;
    2148             : 
    2149      377662 :     switch (ifilter->ist->st->codecpar->codec_type) {
    2150             :     case AVMEDIA_TYPE_AUDIO:
    2151      848711 :         need_reinit |= ifilter->sample_rate    != frame->sample_rate ||
    2152      565473 :                        ifilter->channels       != frame->channels ||
    2153      282236 :                        ifilter->channel_layout != frame->channel_layout;
    2154      283237 :         break;
    2155             :     case AVMEDIA_TYPE_VIDEO:
    2156      184798 :         need_reinit |= ifilter->width  != frame->width ||
    2157       90373 :                        ifilter->height != frame->height;
    2158       94425 :         break;
    2159             :     }
    2160             : 
    2161      377662 :     if (need_reinit) {
    2162        5065 :         ret = ifilter_parameters_from_frame(ifilter, frame);
    2163        5065 :         if (ret < 0)
    2164           0 :             return ret;
    2165             :     }
    2166             : 
    2167             :     /* (re)init the graph if possible, otherwise buffer the frame and return */
    2168      377662 :     if (need_reinit || !fg->graph) {
    2169       10132 :         for (i = 0; i < fg->nb_inputs; i++) {
    2170        5086 :             if (!ifilter_has_all_input_formats(fg)) {
    2171          19 :                 AVFrame *tmp = av_frame_clone(frame);
    2172          19 :                 if (!tmp)
    2173           0 :                     return AVERROR(ENOMEM);
    2174          19 :                 av_frame_unref(frame);
    2175             : 
    2176          19 :                 if (!av_fifo_space(ifilter->frame_queue)) {
    2177           0 :                     ret = av_fifo_realloc2(ifilter->frame_queue, 2 * av_fifo_size(ifilter->frame_queue));
    2178           0 :                     if (ret < 0)
    2179           0 :                         return ret;
    2180             :                 }
    2181          19 :                 av_fifo_generic_write(ifilter->frame_queue, &tmp, sizeof(tmp), NULL);
    2182          19 :                 return 0;
    2183             :             }
    2184             :         }
    2185             : 
    2186        5046 :         ret = reap_filters(1);
    2187        5046 :         if (ret < 0 && ret != AVERROR_EOF) {
    2188             :             char errbuf[128];
    2189           0 :             av_strerror(ret, errbuf, sizeof(errbuf));
    2190             : 
    2191           0 :             av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
    2192           0 :             return ret;
    2193             :         }
    2194             : 
    2195        5046 :         ret = configure_filtergraph(fg);
    2196        5046 :         if (ret < 0) {
    2197           0 :             av_log(NULL, AV_LOG_ERROR, "Error reinitializing filters!\n");
    2198           0 :             return ret;
    2199             :         }
    2200             :     }
    2201             : 
    2202      377643 :     ret = av_buffersrc_add_frame_flags(ifilter->filter, frame, AV_BUFFERSRC_FLAG_PUSH);
    2203      377643 :     if (ret < 0) {
    2204           0 :         av_log(NULL, AV_LOG_ERROR, "Error while filtering\n");
    2205           0 :         return ret;
    2206             :     }
    2207             : 
    2208      377643 :     return 0;
    2209             : }
    2210             : 
    2211        5020 : static int ifilter_send_eof(InputFilter *ifilter)
    2212             : {
    2213             :     int i, j, ret;
    2214             : 
    2215        5020 :     ifilter->eof = 1;
    2216             : 
    2217        5020 :     if (ifilter->filter) {
    2218        5020 :         ret = av_buffersrc_add_frame_flags(ifilter->filter, NULL, AV_BUFFERSRC_FLAG_PUSH);
    2219        5020 :         if (ret < 0)
    2220           0 :             return ret;
    2221             :     } else {
    2222             :         // the filtergraph was never configured
    2223           0 :         FilterGraph *fg = ifilter->graph;
    2224           0 :         for (i = 0; i < fg->nb_inputs; i++)
    2225           0 :             if (!fg->inputs[i]->eof)
    2226           0 :                 break;
    2227           0 :         if (i == fg->nb_inputs) {
    2228             :             // All the input streams have finished without the filtergraph
    2229             :             // ever being configured.
    2230             :             // Mark the output streams as finished.
    2231           0 :             for (j = 0; j < fg->nb_outputs; j++)
    2232           0 :                 finish_output_stream(fg->outputs[j]->ost);
    2233             :         }
    2234             :     }
    2235             : 
    2236        5020 :     return 0;
    2237             : }
    2238             : 
    2239             : // This does not quite work like avcodec_decode_audio4/avcodec_decode_video2.
    2240             : // There is the following difference: if you got a frame, you must call
    2241             : // it again with pkt=NULL. pkt==NULL is treated differently from pkt.size==0
    2242             : // (pkt==NULL means get more output, pkt.size==0 is a flush/drain packet)
    2243      736575 : static int decode(AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *pkt)
    2244             : {
    2245             :     int ret;
    2246             : 
    2247      736575 :     *got_frame = 0;
    2248             : 
    2249      736575 :     if (pkt) {
    2250      359897 :         ret = avcodec_send_packet(avctx, pkt);
    2251             :         // In particular, we don't expect AVERROR(EAGAIN), because we read all
    2252             :         // decoded frames with avcodec_receive_frame() until done.
    2253      359897 :         if (ret < 0 && ret != AVERROR_EOF)
    2254         382 :             return ret;
    2255             :     }
    2256             : 
    2257      736193 :     ret = avcodec_receive_frame(avctx, frame);
    2258      736193 :     if (ret < 0 && ret != AVERROR(EAGAIN))
    2259        5022 :         return ret;
    2260      731171 :     if (ret >= 0)
    2261      377274 :         *got_frame = 1;
    2262             : 
    2263      731171 :     return 0;
    2264             : }
    2265             : 
    2266      377274 : static int send_frame_to_filters(InputStream *ist, AVFrame *decoded_frame)
    2267             : {
    2268             :     int i, ret;
    2269             :     AVFrame *f;
    2270             : 
    2271             :     av_assert1(ist->nb_filters > 0); /* ensure ret is initialized */
    2272      754936 :     for (i = 0; i < ist->nb_filters; i++) {
    2273      377662 :         if (i < ist->nb_filters - 1) {
    2274         388 :             f = ist->filter_frame;
    2275         388 :             ret = av_frame_ref(f, decoded_frame);
    2276         388 :             if (ret < 0)
    2277           0 :                 break;
    2278             :         } else
    2279      377274 :             f = decoded_frame;
    2280      377662 :         ret = ifilter_send_frame(ist->filters[i], f);
    2281      377662 :         if (ret == AVERROR_EOF)
    2282           0 :             ret = 0; /* ignore */
    2283      377662 :         if (ret < 0) {
    2284           0 :             av_log(NULL, AV_LOG_ERROR,
    2285           0 :                    "Failed to inject frame into filter network: %s\n", av_err2str(ret));
    2286           0 :             break;
    2287             :         }
    2288             :     }
    2289      377274 :     return ret;
    2290             : }
    2291             : 
    2292      539919 : static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
    2293             : {
    2294             :     AVFrame *decoded_frame;
    2295      539919 :     AVCodecContext *avctx = ist->dec_ctx;
    2296      539919 :     int ret, err = 0;
    2297             :     AVRational decoded_frame_tb;
    2298             : 
    2299      539919 :     if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
    2300           0 :         return AVERROR(ENOMEM);
    2301      539919 :     if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
    2302           0 :         return AVERROR(ENOMEM);
    2303      539919 :     decoded_frame = ist->decoded_frame;
    2304             : 
    2305      539919 :     update_benchmark(NULL);
    2306      539919 :     ret = decode(avctx, decoded_frame, got_output, pkt);
    2307      539919 :     update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
    2308             : 
    2309      539919 :     if (ret >= 0 && avctx->sample_rate <= 0) {
    2310           0 :         av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
    2311           0 :         ret = AVERROR_INVALIDDATA;
    2312             :     }
    2313             : 
    2314      539919 :     if (ret != AVERROR_EOF)
    2315      538921 :         check_decode_result(ist, got_output, ret);
    2316             : 
    2317      539919 :     if (!*got_output || ret < 0)
    2318      257070 :         return ret;
    2319             : 
    2320      282849 :     ist->samples_decoded += decoded_frame->nb_samples;
    2321      282849 :     ist->frames_decoded++;
    2322             : 
    2323             : #if 1
    2324             :     /* increment next_dts to use for the case where the input stream does not
    2325             :        have timestamps or there are multiple frames in the packet */
    2326      565698 :     ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
    2327      282849 :                      avctx->sample_rate;
    2328      565698 :     ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
    2329      282849 :                      avctx->sample_rate;
    2330             : #endif
    2331             : 
    2332      282849 :     if (decoded_frame->pts != AV_NOPTS_VALUE) {
    2333      254857 :         decoded_frame_tb   = ist->st->time_base;
    2334       27992 :     } else if (pkt && pkt->pts != AV_NOPTS_VALUE) {
    2335           3 :         decoded_frame->pts = pkt->pts;
    2336           3 :         decoded_frame_tb   = ist->st->time_base;
    2337             :     }else {
    2338       27989 :         decoded_frame->pts = ist->dts;
    2339       27989 :         decoded_frame_tb   = AV_TIME_BASE_Q;
    2340             :     }
    2341      282849 :     if (decoded_frame->pts != AV_NOPTS_VALUE)
    2342      565698 :         decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
    2343      282849 :                                               (AVRational){1, avctx->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
    2344      282849 :                                               (AVRational){1, avctx->sample_rate});
    2345      282849 :     ist->nb_samples = decoded_frame->nb_samples;
    2346      282849 :     err = send_frame_to_filters(ist, decoded_frame);
    2347             : 
    2348      282849 :     av_frame_unref(ist->filter_frame);
    2349      282849 :     av_frame_unref(decoded_frame);
    2350      282849 :     return err < 0 ? err : ret;
    2351             : }
    2352             : 
    2353      198201 : static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output, int eof)
    2354             : {
    2355             :     AVFrame *decoded_frame;
    2356      198201 :     int i, ret = 0, err = 0;
    2357             :     int64_t best_effort_timestamp;
    2358      198201 :     int64_t dts = AV_NOPTS_VALUE;
    2359             :     AVPacket avpkt;
    2360             : 
    2361             :     // With fate-indeo3-2, we're getting 0-sized packets before EOF for some
    2362             :     // reason. This seems like a semi-critical bug. Don't trigger EOF, and
    2363             :     // skip the packet.
    2364      198201 :     if (!eof && pkt && pkt->size == 0)
    2365        1545 :         return 0;
    2366             : 
    2367      196656 :     if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
    2368           0 :         return AVERROR(ENOMEM);
    2369      196656 :     if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
    2370           0 :         return AVERROR(ENOMEM);
    2371      196656 :     decoded_frame = ist->decoded_frame;
    2372      196656 :     if (ist->dts != AV_NOPTS_VALUE)
    2373      196243 :         dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
    2374      196656 :     if (pkt) {
    2375      102799 :         avpkt = *pkt;
    2376      102799 :         avpkt.dts = dts; // ffmpeg.c probably shouldn't do this
    2377             :     }
    2378             : 
    2379             :     // The old code used to set dts on the drain packet, which does not work
    2380             :     // with the new API anymore.
    2381      196656 :     if (eof) {
    2382        4587 :         void *new = av_realloc_array(ist->dts_buffer, ist->nb_dts_buffer + 1, sizeof(ist->dts_buffer[0]));
    2383        4587 :         if (!new)
    2384           0 :             return AVERROR(ENOMEM);
    2385        4587 :         ist->dts_buffer = new;
    2386        4587 :         ist->dts_buffer[ist->nb_dts_buffer++] = dts;
    2387             :     }
    2388             : 
    2389      196656 :     update_benchmark(NULL);
    2390      196656 :     ret = decode(ist->dec_ctx, decoded_frame, got_output, pkt ? &avpkt : NULL);
    2391      196656 :     update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
    2392             : 
    2393             :     // The following line may be required in some cases where there is no parser
    2394             :     // or the parser does not has_b_frames correctly
    2395      196656 :     if (ist->st->codecpar->video_delay < ist->dec_ctx->has_b_frames) {
    2396           2 :         if (ist->dec_ctx->codec_id == AV_CODEC_ID_H264) {
    2397           2 :             ist->st->codecpar->video_delay = ist->dec_ctx->has_b_frames;
    2398             :         } else
    2399           0 :             av_log(ist->dec_ctx, AV_LOG_WARNING,
    2400             :                    "video_delay is larger in decoder than demuxer %d > %d.\n"
    2401             :                    "If you want to help, upload a sample "
    2402             :                    "of this file to ftp://upload.ffmpeg.org/incoming/ "
    2403             :                    "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n",
    2404           0 :                    ist->dec_ctx->has_b_frames,
    2405           0 :                    ist->st->codecpar->video_delay);
    2406             :     }
    2407             : 
    2408      196656 :     if (ret != AVERROR_EOF)
    2409      192637 :         check_decode_result(ist, got_output, ret);
    2410             : 
    2411      196656 :     if (*got_output && ret >= 0) {
    2412      188847 :         if (ist->dec_ctx->width  != decoded_frame->width ||
    2413      188844 :             ist->dec_ctx->height != decoded_frame->height ||
    2414       94422 :             ist->dec_ctx->pix_fmt != decoded_frame->format) {
    2415           6 :             av_log(NULL, AV_LOG_DEBUG, "Frame parameters mismatch context %d,%d,%d != %d,%d,%d\n",
    2416             :                 decoded_frame->width,
    2417             :                 decoded_frame->height,
    2418             :                 decoded_frame->format,
    2419           3 :                 ist->dec_ctx->width,
    2420           3 :                 ist->dec_ctx->height,
    2421           3 :                 ist->dec_ctx->pix_fmt);
    2422             :         }
    2423             :     }
    2424             : 
    2425      196656 :     if (!*got_output || ret < 0)
    2426      102231 :         return ret;
    2427             : 
    2428       94425 :     if(ist->top_field_first>=0)
    2429           0 :         decoded_frame->top_field_first = ist->top_field_first;
    2430             : 
    2431       94425 :     ist->frames_decoded++;
    2432             : 
    2433       94425 :     if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
    2434           0 :         err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
    2435           0 :         if (err < 0)
    2436           0 :             goto fail;
    2437             :     }
    2438       94425 :     ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
    2439             : 
    2440       94425 :     best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
    2441             : 
    2442       94425 :     if (ist->framerate.num)
    2443         103 :         best_effort_timestamp = ist->cfr_next_pts++;
    2444             : 
    2445       94425 :     if (eof && best_effort_timestamp == AV_NOPTS_VALUE && ist->nb_dts_buffer > 0) {
    2446         519 :         best_effort_timestamp = ist->dts_buffer[0];
    2447             : 
    2448         519 :         for (i = 0; i < ist->nb_dts_buffer - 1; i++)
    2449           0 :             ist->dts_buffer[i] = ist->dts_buffer[i + 1];
    2450         519 :         ist->nb_dts_buffer--;
    2451             :     }
    2452             : 
    2453       94425 :     if(best_effort_timestamp != AV_NOPTS_VALUE) {
    2454       94425 :         int64_t ts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
    2455             : 
    2456       94425 :         if (ts != AV_NOPTS_VALUE)
    2457       94425 :             ist->next_pts = ist->pts = ts;
    2458             :     }
    2459             : 
    2460       94425 :     if (debug_ts) {
    2461           0 :         av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
    2462             :                "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",
    2463           0 :                ist->st->index, av_ts2str(decoded_frame->pts),
    2464           0 :                av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
    2465             :                best_effort_timestamp,
    2466           0 :                av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
    2467           0 :                decoded_frame->key_frame, decoded_frame->pict_type,
    2468           0 :                ist->st->time_base.num, ist->st->time_base.den);
    2469             :     }
    2470             : 
    2471       94425 :     if (ist->st->sample_aspect_ratio.num)
    2472        4228 :         decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
    2473             : 
    2474       94425 :     err = send_frame_to_filters(ist, decoded_frame);
    2475             : 
    2476             : fail:
    2477       94425 :     av_frame_unref(ist->filter_frame);
    2478       94425 :     av_frame_unref(decoded_frame);
    2479       94425 :     return err < 0 ? err : ret;
    2480             : }
    2481             : 
    2482         953 : static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
    2483             : {
    2484             :     AVSubtitle subtitle;
    2485         953 :     int free_sub = 1;
    2486         953 :     int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
    2487             :                                           &subtitle, got_output, pkt);
    2488             : 
    2489         953 :     check_decode_result(NULL, got_output, ret);
    2490             : 
    2491         953 :     if (ret < 0 || !*got_output) {
    2492         370 :         if (!pkt->size)
    2493          29 :             sub2video_flush(ist);
    2494         370 :         return ret;
    2495             :     }
    2496             : 
    2497         583 :     if (ist->fix_sub_duration) {
    2498           0 :         int end = 1;
    2499           0 :         if (ist->prev_sub.got_output) {
    2500           0 :             end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
    2501             :                              1000, AV_TIME_BASE);
    2502           0 :             if (end < ist->prev_sub.subtitle.end_display_time) {
    2503           0 :                 av_log(ist->dec_ctx, AV_LOG_DEBUG,
    2504             :                        "Subtitle duration reduced from %d to %d%s\n",
    2505             :                        ist->prev_sub.subtitle.end_display_time, end,
    2506             :                        end <= 0 ? ", dropping it" : "");
    2507           0 :                 ist->prev_sub.subtitle.end_display_time = end;
    2508             :             }
    2509             :         }
    2510           0 :         FFSWAP(int,        *got_output, ist->prev_sub.got_output);
    2511           0 :         FFSWAP(int,        ret,         ist->prev_sub.ret);
    2512           0 :         FFSWAP(AVSubtitle, subtitle,    ist->prev_sub.subtitle);
    2513           0 :         if (end <= 0)
    2514           0 :             goto out;
    2515             :     }
    2516             : 
    2517         583 :     if (!*got_output)
    2518           0 :         return ret;
    2519             : 
    2520         583 :     if (ist->sub2video.frame) {
    2521          44 :         sub2video_update(ist, &subtitle);
    2522         539 :     } else if (ist->nb_filters) {
    2523           0 :         if (!ist->sub2video.sub_queue)
    2524           0 :             ist->sub2video.sub_queue = av_fifo_alloc(8 * sizeof(AVSubtitle));
    2525           0 :         if (!ist->sub2video.sub_queue)
    2526           0 :             exit_program(1);
    2527           0 :         if (!av_fifo_space(ist->sub2video.sub_queue)) {
    2528           0 :             ret = av_fifo_realloc2(ist->sub2video.sub_queue, 2 * av_fifo_size(ist->sub2video.sub_queue));
    2529           0 :             if (ret < 0)
    2530           0 :                 exit_program(1);
    2531             :         }
    2532           0 :         av_fifo_generic_write(ist->sub2video.sub_queue, &subtitle, sizeof(subtitle), NULL);
    2533           0 :         free_sub = 0;
    2534             :     }
    2535             : 
    2536         583 :     if (!subtitle.num_rects)
    2537           0 :         goto out;
    2538             : 
    2539         583 :     ist->frames_decoded++;
    2540             : 
    2541        1210 :     for (i = 0; i < nb_output_streams; i++) {
    2542         627 :         OutputStream *ost = output_streams[i];
    2543             : 
    2544         627 :         if (!check_output_constraints(ist, ost) || !ost->encoding_needed
    2545         582 :             || ost->enc->type != AVMEDIA_TYPE_SUBTITLE)
    2546          45 :             continue;
    2547             : 
    2548         582 :         do_subtitle_out(output_files[ost->file_index], ost, &subtitle);
    2549             :     }
    2550             : 
    2551             : out:
    2552         583 :     if (free_sub)
    2553         583 :         avsubtitle_free(&subtitle);
    2554         583 :     return ret;
    2555             : }
    2556             : 
    2557        5046 : static int send_filter_eof(InputStream *ist)
    2558             : {
    2559             :     int i, ret;
    2560       10066 :     for (i = 0; i < ist->nb_filters; i++) {
    2561        5020 :         ret = ifilter_send_eof(ist->filters[i]);
    2562        5020 :         if (ret < 0)
    2563           0 :             return ret;
    2564             :     }
    2565        5046 :     return 0;
    2566             : }
    2567             : 
    2568             : /* pkt = NULL means EOF (needed to flush decoder buffers) */
    2569      382345 : static int process_input_packet(InputStream *ist, const AVPacket *pkt, int no_eof)
    2570             : {
    2571      382345 :     int ret = 0, i;
    2572      382345 :     int repeating = 0;
    2573      382345 :     int eof_reached = 0;
    2574             : 
    2575             :     AVPacket avpkt;
    2576      382345 :     if (!ist->saw_first_ts) {
    2577        5212 :         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;
    2578        5212 :         ist->pts = 0;
    2579        5212 :         if (pkt && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
    2580         135 :             ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
    2581         135 :             ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
    2582             :         }
    2583        5212 :         ist->saw_first_ts = 1;
    2584             :     }
    2585             : 
    2586      382345 :     if (ist->next_dts == AV_NOPTS_VALUE)
    2587        5625 :         ist->next_dts = ist->dts;
    2588      382345 :     if (ist->next_pts == AV_NOPTS_VALUE)
    2589        5212 :         ist->next_pts = ist->pts;
    2590             : 
    2591      382345 :     if (!pkt) {
    2592             :         /* EOF handling */
    2593        5643 :         av_init_packet(&avpkt);
    2594        5643 :         avpkt.data = NULL;
    2595        5643 :         avpkt.size = 0;
    2596             :     } else {
    2597      376702 :         avpkt = *pkt;
    2598             :     }
    2599             : 
    2600      382345 :     if (pkt && pkt->dts != AV_NOPTS_VALUE) {
    2601      345463 :         ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
    2602      345463 :         if (ist->dec_ctx->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
    2603      275580 :             ist->next_pts = ist->pts = ist->dts;
    2604             :     }
    2605             : 
    2606             :     // while we have more to decode or while the decoder did output something on EOF
    2607     1141951 :     while (ist->decoding_needed) {
    2608      739656 :         int duration = 0;
    2609      739656 :         int got_output = 0;
    2610             : 
    2611      739656 :         ist->pts = ist->next_pts;
    2612      739656 :         ist->dts = ist->next_dts;
    2613             : 
    2614      739656 :         switch (ist->dec_ctx->codec_type) {
    2615             :         case AVMEDIA_TYPE_AUDIO:
    2616      539919 :             ret = decode_audio    (ist, repeating ? NULL : &avpkt, &got_output);
    2617      539919 :             break;
    2618             :         case AVMEDIA_TYPE_VIDEO:
    2619      198201 :             ret = decode_video    (ist, repeating ? NULL : &avpkt, &got_output, !pkt);
    2620      198201 :             if (!repeating || !pkt || got_output) {
    2621      104344 :                 if (pkt && pkt->duration) {
    2622       97466 :                     duration = av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
    2623        6878 :                 } else if(ist->dec_ctx->framerate.num != 0 && ist->dec_ctx->framerate.den != 0) {
    2624        5708 :                     int ticks= av_stream_get_parser(ist->st) ? av_stream_get_parser(ist->st)->repeat_pict+1 : ist->dec_ctx->ticks_per_frame;
    2625       11416 :                     duration = ((int64_t)AV_TIME_BASE *
    2626       17124 :                                     ist->dec_ctx->framerate.den * ticks) /
    2627       11416 :                                     ist->dec_ctx->framerate.num / ist->dec_ctx->ticks_per_frame;
    2628             :                 }
    2629             : 
    2630      104344 :                 if(ist->dts != AV_NOPTS_VALUE && duration) {
    2631      103174 :                     ist->next_dts += duration;
    2632             :                 }else
    2633        1170 :                     ist->next_dts = AV_NOPTS_VALUE;
    2634             :             }
    2635             : 
    2636      198201 :             if (got_output)
    2637       94425 :                 ist->next_pts += duration; //FIXME the duration is not correct in some cases
    2638      198201 :             break;
    2639             :         case AVMEDIA_TYPE_SUBTITLE:
    2640        1536 :             if (repeating)
    2641         583 :                 break;
    2642         953 :             ret = transcode_subtitles(ist, &avpkt, &got_output);
    2643         953 :             if (!pkt && ret >= 0)
    2644          29 :                 ret = AVERROR_EOF;
    2645         953 :             break;
    2646             :         default:
    2647           0 :             return -1;
    2648             :         }
    2649             : 
    2650      739656 :         if (ret == AVERROR_EOF) {
    2651        5046 :             eof_reached = 1;
    2652      367441 :             break;
    2653             :         }
    2654             : 
    2655      734610 :         if (ret < 0) {
    2656         774 :             av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
    2657         774 :                    ist->file_index, ist->st->index, av_err2str(ret));
    2658         387 :             if (exit_on_error)
    2659           0 :                 exit_program(1);
    2660         387 :             break;
    2661             :         }
    2662             : 
    2663      734223 :         if (got_output)
    2664      377857 :             ist->got_output = 1;
    2665             : 
    2666      734223 :         if (!got_output)
    2667      356366 :             break;
    2668             : 
    2669             :         // During draining, we might get multiple output frames in this loop.
    2670             :         // ffmpeg.c does not drain the filter chain on configuration changes,
    2671             :         // which means if we send multiple frames at once to the filters, and
    2672             :         // one of those frames changes configuration, the buffered frames will
    2673             :         // be lost. This can upset certain FATE tests.
    2674             :         // Decode only 1 frame per call on EOF to appease these FATE tests.
    2675             :         // The ideal solution would be to rewrite decoding to use the new
    2676             :         // decoding API in a better way.
    2677      377857 :         if (!pkt)
    2678         596 :             break;
    2679             : 
    2680      377261 :         repeating = 1;
    2681             :     }
    2682             : 
    2683             :     /* after flushing, send an EOF on all the filter inputs attached to the stream */
    2684             :     /* except when looping we need to flush but not to send an EOF */
    2685      382345 :     if (!pkt && ist->decoding_needed && eof_reached && !no_eof) {
    2686        5046 :         int ret = send_filter_eof(ist);
    2687        5046 :         if (ret < 0) {
    2688           0 :             av_log(NULL, AV_LOG_FATAL, "Error marking filters as finished\n");
    2689           0 :             exit_program(1);
    2690             :         }
    2691             :     }
    2692             : 
    2693             :     /* handle stream copy */
    2694      382345 :     if (!ist->decoding_needed) {
    2695       19950 :         ist->dts = ist->next_dts;
    2696       19950 :         switch (ist->dec_ctx->codec_type) {
    2697             :         case AVMEDIA_TYPE_AUDIO:
    2698       31660 :             ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
    2699       15830 :                              ist->dec_ctx->sample_rate;
    2700       15830 :             break;
    2701             :         case AVMEDIA_TYPE_VIDEO:
    2702        3600 :             if (ist->framerate.num) {
    2703             :                 // TODO: Remove work-around for c99-to-c89 issue 7
    2704          79 :                 AVRational time_base_q = AV_TIME_BASE_Q;
    2705          79 :                 int64_t next_dts = av_rescale_q(ist->next_dts, time_base_q, av_inv_q(ist->framerate));
    2706          79 :                 ist->next_dts = av_rescale_q(next_dts + 1, av_inv_q(ist->framerate), time_base_q);
    2707        3521 :             } else if (pkt->duration) {
    2708        3294 :                 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
    2709         227 :             } else if(ist->dec_ctx->framerate.num != 0) {
    2710         119 :                 int ticks= av_stream_get_parser(ist->st) ? av_stream_get_parser(ist->st)->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
    2711         357 :                 ist->next_dts += ((int64_t)AV_TIME_BASE *
    2712         357 :                                   ist->dec_ctx->framerate.den * ticks) /
    2713         238 :                                   ist->dec_ctx->framerate.num / ist->dec_ctx->ticks_per_frame;
    2714             :             }
    2715        3600 :             break;
    2716             :         }
    2717       19950 :         ist->pts = ist->dts;
    2718       19950 :         ist->next_pts = ist->next_dts;
    2719             :     }
    2720      771824 :     for (i = 0; pkt && i < nb_output_streams; i++) {
    2721      389479 :         OutputStream *ost = output_streams[i];
    2722             : 
    2723      389479 :         if (!check_output_constraints(ist, ost) || ost->encoding_needed)
    2724      369552 :             continue;
    2725             : 
    2726       19927 :         do_streamcopy(ist, ost, pkt);
    2727             :     }
    2728             : 
    2729      382345 :     return !eof_reached;
    2730             : }
    2731             : 
    2732           0 : static void print_sdp(void)
    2733             : {
    2734             :     char sdp[16384];
    2735             :     int i;
    2736             :     int j;
    2737             :     AVIOContext *sdp_pb;
    2738             :     AVFormatContext **avc;
    2739             : 
    2740           0 :     for (i = 0; i < nb_output_files; i++) {
    2741           0 :         if (!output_files[i]->header_written)
    2742           0 :             return;
    2743             :     }
    2744             : 
    2745           0 :     avc = av_malloc_array(nb_output_files, sizeof(*avc));
    2746           0 :     if (!avc)
    2747           0 :         exit_program(1);
    2748           0 :     for (i = 0, j = 0; i < nb_output_files; i++) {
    2749           0 :         if (!strcmp(output_files[i]->ctx->oformat->name, "rtp")) {
    2750           0 :             avc[j] = output_files[i]->ctx;
    2751           0 :             j++;
    2752             :         }
    2753             :     }
    2754             : 
    2755           0 :     if (!j)
    2756           0 :         goto fail;
    2757             : 
    2758           0 :     av_sdp_create(avc, j, sdp, sizeof(sdp));
    2759             : 
    2760           0 :     if (!sdp_filename) {
    2761           0 :         printf("SDP:\n%s\n", sdp);
    2762           0 :         fflush(stdout);
    2763             :     } else {
    2764           0 :         if (avio_open2(&sdp_pb, sdp_filename, AVIO_FLAG_WRITE, &int_cb, NULL) < 0) {
    2765           0 :             av_log(NULL, AV_LOG_ERROR, "Failed to open sdp file '%s'\n", sdp_filename);
    2766             :         } else {
    2767           0 :             avio_printf(sdp_pb, "SDP:\n%s", sdp);
    2768           0 :             avio_closep(&sdp_pb);
    2769           0 :             av_freep(&sdp_filename);
    2770             :         }
    2771             :     }
    2772             : 
    2773             : fail:
    2774           0 :     av_freep(&avc);
    2775             : }
    2776             : 
    2777        1374 : static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
    2778             : {
    2779             :     int i;
    2780        2471 :     for (i = 0; hwaccels[i].name; i++)
    2781        2349 :         if (hwaccels[i].pix_fmt == pix_fmt)
    2782        1252 :             return &hwaccels[i];
    2783         122 :     return NULL;
    2784             : }
    2785             : 
    2786         824 : static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
    2787             : {
    2788         824 :     InputStream *ist = s->opaque;
    2789             :     const enum AVPixelFormat *p;
    2790             :     int ret;
    2791             : 
    2792        2198 :     for (p = pix_fmts; *p != -1; p++) {
    2793        2198 :         const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
    2794             :         const HWAccel *hwaccel;
    2795             : 
    2796        2198 :         if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
    2797         824 :             break;
    2798             : 
    2799        1374 :         hwaccel = get_hwaccel(*p);
    2800        2626 :         if (!hwaccel ||
    2801        2504 :             (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
    2802        2504 :             (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
    2803        1374 :             continue;
    2804             : 
    2805           0 :         ret = hwaccel->init(s);
    2806           0 :         if (ret < 0) {
    2807           0 :             if (ist->hwaccel_id == hwaccel->id) {
    2808           0 :                 av_log(NULL, AV_LOG_FATAL,
    2809             :                        "%s hwaccel requested for input stream #%d:%d, "
    2810             :                        "but cannot be initialized.\n", hwaccel->name,
    2811           0 :                        ist->file_index, ist->st->index);
    2812           0 :                 return AV_PIX_FMT_NONE;
    2813             :             }
    2814           0 :             continue;
    2815             :         }
    2816             : 
    2817           0 :         if (ist->hw_frames_ctx) {
    2818           0 :             s->hw_frames_ctx = av_buffer_ref(ist->hw_frames_ctx);
    2819           0 :             if (!s->hw_frames_ctx)
    2820           0 :                 return AV_PIX_FMT_NONE;
    2821             :         }
    2822             : 
    2823           0 :         ist->active_hwaccel_id = hwaccel->id;
    2824           0 :         ist->hwaccel_pix_fmt   = *p;
    2825           0 :         break;
    2826             :     }
    2827             : 
    2828         824 :     return *p;
    2829             : }
    2830             : 
    2831      353192 : static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
    2832             : {
    2833      353192 :     InputStream *ist = s->opaque;
    2834             : 
    2835      353192 :     if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
    2836           0 :         return ist->hwaccel_get_buffer(s, frame, flags);
    2837             : 
    2838      353192 :     return avcodec_default_get_buffer2(s, frame, flags);
    2839             : }
    2840             : 
    2841        5448 : static int init_input_stream(int ist_index, char *error, int error_len)
    2842             : {
    2843             :     int ret;
    2844        5448 :     InputStream *ist = input_streams[ist_index];
    2845             : 
    2846        5448 :     if (ist->decoding_needed) {
    2847        5057 :         AVCodec *codec = ist->dec;
    2848        5057 :         if (!codec) {
    2849           0 :             snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
    2850           0 :                     avcodec_get_name(ist->dec_ctx->codec_id), ist->file_index, ist->st->index);
    2851           0 :             return AVERROR(EINVAL);
    2852             :         }
    2853             : 
    2854        5057 :         ist->dec_ctx->opaque                = ist;
    2855        5057 :         ist->dec_ctx->get_format            = get_format;
    2856        5057 :         ist->dec_ctx->get_buffer2           = get_buffer;
    2857        5057 :         ist->dec_ctx->thread_safe_callbacks = 1;
    2858             : 
    2859        5057 :         av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
    2860        5057 :         if (ist->dec_ctx->codec_id == AV_CODEC_ID_DVB_SUBTITLE &&
    2861           0 :            (ist->decoding_needed & DECODING_FOR_OST)) {
    2862           0 :             av_dict_set(&ist->decoder_opts, "compute_edt", "1", AV_DICT_DONT_OVERWRITE);
    2863           0 :             if (ist->decoding_needed & DECODING_FOR_FILTER)
    2864           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");
    2865             :         }
    2866             : 
    2867        5057 :         av_dict_set(&ist->decoder_opts, "sub_text_format", "ass", AV_DICT_DONT_OVERWRITE);
    2868             : 
    2869             :         /* Useful for subtitles retiming by lavf (FIXME), skipping samples in
    2870             :          * audio, and video decoders such as cuvid or mediacodec */
    2871        5057 :         av_codec_set_pkt_timebase(ist->dec_ctx, ist->st->time_base);
    2872             : 
    2873        5057 :         if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
    2874          36 :             av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
    2875        5057 :         if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
    2876           0 :             if (ret == AVERROR_EXPERIMENTAL)
    2877           0 :                 abort_codec_experimental(codec, 0);
    2878             : 
    2879           0 :             snprintf(error, error_len,
    2880             :                      "Error while opening decoder for input stream "
    2881             :                      "#%d:%d : %s",
    2882           0 :                      ist->file_index, ist->st->index, av_err2str(ret));
    2883           0 :             return ret;
    2884             :         }
    2885        5057 :         assert_avoptions(ist->decoder_opts);
    2886             :     }
    2887             : 
    2888        5448 :     ist->next_pts = AV_NOPTS_VALUE;
    2889        5448 :     ist->next_dts = AV_NOPTS_VALUE;
    2890             : 
    2891        5448 :     return 0;
    2892             : }
    2893             : 
    2894       10271 : static InputStream *get_input_stream(OutputStream *ost)
    2895             : {
    2896       10271 :     if (ost->source_index >= 0)
    2897       10211 :         return input_streams[ost->source_index];
    2898          60 :     return NULL;
    2899             : }
    2900             : 
    2901           1 : static int compare_int64(const void *a, const void *b)
    2902             : {
    2903           1 :     return FFDIFFSIGN(*(const int64_t *)a, *(const int64_t *)b);
    2904             : }
    2905             : 
    2906             : /* open the muxer when all the streams are initialized */
    2907        5224 : static int check_init_output_file(OutputFile *of, int file_index)
    2908             : {
    2909             :     int ret, i;
    2910             : 
    2911       10554 :     for (i = 0; i < of->ctx->nb_streams; i++) {
    2912        5462 :         OutputStream *ost = output_streams[of->ost_index + i];
    2913        5462 :         if (!ost->initialized)
    2914         132 :             return 0;
    2915             :     }
    2916             : 
    2917        5092 :     of->ctx->interrupt_callback = int_cb;
    2918             : 
    2919        5092 :     ret = avformat_write_header(of->ctx, &of->opts);
    2920        5092 :     if (ret < 0) {
    2921           0 :         av_log(NULL, AV_LOG_ERROR,
    2922             :                "Could not write header for output file #%d "
    2923             :                "(incorrect codec parameters ?): %s\n",
    2924           0 :                file_index, av_err2str(ret));
    2925           0 :         return ret;
    2926             :     }
    2927             :     //assert_avoptions(of->opts);
    2928        5092 :     of->header_written = 1;
    2929             : 
    2930        5092 :     av_dump_format(of->ctx, file_index, of->ctx->filename, 1);
    2931             : 
    2932        5092 :     if (sdp_filename || want_sdp)
    2933           0 :         print_sdp();
    2934             : 
    2935             :     /* flush the muxing queues */
    2936       10315 :     for (i = 0; i < of->ctx->nb_streams; i++) {
    2937        5223 :         OutputStream *ost = output_streams[of->ost_index + i];
    2938             : 
    2939             :         /* try to improve muxing time_base (only possible if nothing has been written yet) */
    2940        5223 :         if (!av_fifo_size(ost->muxing_queue))
    2941        5152 :             ost->mux_timebase = ost->st->time_base;
    2942             : 
    2943       10716 :         while (av_fifo_size(ost->muxing_queue)) {
    2944             :             AVPacket pkt;
    2945         270 :             av_fifo_generic_read(ost->muxing_queue, &pkt, sizeof(pkt), NULL);
    2946         270 :             write_packet(of, &pkt, ost);
    2947             :         }
    2948             :     }
    2949             : 
    2950        5092 :     return 0;
    2951             : }
    2952             : 
    2953        5223 : static int init_output_bsfs(OutputStream *ost)
    2954             : {
    2955             :     AVBSFContext *ctx;
    2956             :     int i, ret;
    2957             : 
    2958        5223 :     if (!ost->nb_bitstream_filters)
    2959        5216 :         return 0;
    2960             : 
    2961          14 :     for (i = 0; i < ost->nb_bitstream_filters; i++) {
    2962           7 :         ctx = ost->bsf_ctx[i];
    2963             : 
    2964          14 :         ret = avcodec_parameters_copy(ctx->par_in,
    2965           7 :                                       i ? ost->bsf_ctx[i - 1]->par_out : ost->st->codecpar);
    2966           7 :         if (ret < 0)
    2967           0 :             return ret;
    2968             : 
    2969           7 :         ctx->time_base_in = i ? ost->bsf_ctx[i - 1]->time_base_out : ost->st->time_base;
    2970             : 
    2971           7 :         ret = av_bsf_init(ctx);
    2972           7 :         if (ret < 0) {
    2973           0 :             av_log(NULL, AV_LOG_ERROR, "Error initializing bitstream filter: %s\n",
    2974           0 :                    ost->bsf_ctx[i]->filter->name);
    2975           0 :             return ret;
    2976             :         }
    2977             :     }
    2978             : 
    2979           7 :     ctx = ost->bsf_ctx[ost->nb_bitstream_filters - 1];
    2980           7 :     ret = avcodec_parameters_copy(ost->st->codecpar, ctx->par_out);
    2981           7 :     if (ret < 0)
    2982           0 :         return ret;
    2983             : 
    2984           7 :     ost->st->time_base = ctx->time_base_out;
    2985             : 
    2986           7 :     return 0;
    2987             : }
    2988             : 
    2989         173 : static int init_output_stream_streamcopy(OutputStream *ost)
    2990             : {
    2991         173 :     OutputFile *of = output_files[ost->file_index];
    2992         173 :     InputStream *ist = get_input_stream(ost);
    2993         173 :     AVCodecParameters *par_dst = ost->st->codecpar;
    2994         173 :     AVCodecParameters *par_src = ost->ref_par;
    2995             :     AVRational sar;
    2996             :     int i, ret;
    2997         173 :     uint32_t codec_tag = par_dst->codec_tag;
    2998             : 
    2999         173 :     av_assert0(ist && !ost->filter);
    3000             : 
    3001         173 :     ret = avcodec_parameters_to_context(ost->enc_ctx, ist->st->codecpar);
    3002         173 :     if (ret >= 0)
    3003         173 :         ret = av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts);
    3004         173 :     if (ret < 0) {
    3005           0 :         av_log(NULL, AV_LOG_FATAL,
    3006             :                "Error setting up codec context options.\n");
    3007           0 :         return ret;
    3008             :     }
    3009         173 :     avcodec_parameters_from_context(par_src, ost->enc_ctx);
    3010             : 
    3011         173 :     if (!codec_tag) {
    3012             :         unsigned int codec_tag_tmp;
    3013         197 :         if (!of->ctx->oformat->codec_tag ||
    3014          37 :             av_codec_get_id (of->ctx->oformat->codec_tag, par_src->codec_tag) == par_src->codec_id ||
    3015          13 :             !av_codec_get_tag2(of->ctx->oformat->codec_tag, par_src->codec_id, &codec_tag_tmp))
    3016         163 :             codec_tag = par_src->codec_tag;
    3017             :     }
    3018             : 
    3019         173 :     ret = avcodec_parameters_copy(par_dst, par_src);
    3020         173 :     if (ret < 0)
    3021           0 :         return ret;
    3022             : 
    3023         173 :     par_dst->codec_tag = codec_tag;
    3024             : 
    3025         173 :     if (!ost->frame_rate.num)
    3026         173 :         ost->frame_rate = ist->framerate;
    3027         173 :     ost->st->avg_frame_rate = ost->frame_rate;
    3028             : 
    3029         173 :     ret = avformat_transfer_internal_stream_timing_info(of->ctx->oformat, ost->st, ist->st, copy_tb);
    3030         173 :     if (ret < 0)
    3031           0 :         return ret;
    3032             : 
    3033             :     // copy timebase while removing common factors
    3034         173 :     if (ost->st->time_base.num <= 0 || ost->st->time_base.den <= 0)
    3035         173 :         ost->st->time_base = av_add_q(av_stream_get_codec_timebase(ost->st), (AVRational){0, 1});
    3036             : 
    3037             :     // copy estimated duration as a hint to the muxer
    3038         173 :     if (ost->st->duration <= 0 && ist->st->duration > 0)
    3039         119 :         ost->st->duration = av_rescale_q(ist->st->duration, ist->st->time_base, ost->st->time_base);
    3040             : 
    3041             :     // copy disposition
    3042         173 :     ost->st->disposition = ist->st->disposition;
    3043             : 
    3044         173 :     if (ist->st->nb_side_data) {
    3045           3 :         ost->st->side_data = av_realloc_array(NULL, ist->st->nb_side_data,
    3046             :                                               sizeof(*ist->st->side_data));
    3047           3 :         if (!ost->st->side_data)
    3048           0 :             return AVERROR(ENOMEM);
    3049             : 
    3050           3 :         ost->st->nb_side_data = 0;
    3051           6 :         for (i = 0; i < ist->st->nb_side_data; i++) {
    3052           3 :             const AVPacketSideData *sd_src = &ist->st->side_data[i];
    3053           3 :             AVPacketSideData *sd_dst = &ost->st->side_data[ost->st->nb_side_data];
    3054             : 
    3055           3 :             if (ost->rotate_overridden && sd_src->type == AV_PKT_DATA_DISPLAYMATRIX)
    3056           1 :                 continue;
    3057             : 
    3058           2 :             sd_dst->data = av_malloc(sd_src->size);
    3059           2 :             if (!sd_dst->data)
    3060           0 :                 return AVERROR(ENOMEM);
    3061           2 :             memcpy(sd_dst->data, sd_src->data, sd_src->size);
    3062           2 :             sd_dst->size = sd_src->size;
    3063           2 :             sd_dst->type = sd_src->type;
    3064           2 :             ost->st->nb_side_data++;
    3065             :         }
    3066             :     }
    3067             : 
    3068         173 :     ost->parser = av_parser_init(par_dst->codec_id);
    3069         173 :     ost->parser_avctx = avcodec_alloc_context3(NULL);
    3070         173 :     if (!ost->parser_avctx)
    3071           0 :         return AVERROR(ENOMEM);
    3072             : 
    3073         173 :     switch (par_dst->codec_type) {
    3074             :     case AVMEDIA_TYPE_AUDIO:
    3075          82 :         if (audio_volume != 256) {
    3076           0 :             av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
    3077           0 :             exit_program(1);
    3078             :         }
    3079          82 :         if((par_dst->block_align == 1 || par_dst->block_align == 1152 || par_dst->block_align == 576) && par_dst->codec_id == AV_CODEC_ID_MP3)
    3080           0 :             par_dst->block_align= 0;
    3081          82 :         if(par_dst->codec_id == AV_CODEC_ID_AC3)
    3082           2 :             par_dst->block_align= 0;
    3083          82 :         break;
    3084             :     case AVMEDIA_TYPE_VIDEO:
    3085          76 :         if (ost->frame_aspect_ratio.num) { // overridden by the -aspect cli option
    3086           0 :             sar =
    3087             :                 av_mul_q(ost->frame_aspect_ratio,
    3088           0 :                          (AVRational){ par_dst->height, par_dst->width });
    3089           0 :             av_log(NULL, AV_LOG_WARNING, "Overriding aspect ratio "
    3090             :                    "with stream copy may produce invalid files\n");
    3091             :             }
    3092          76 :         else if (ist->st->sample_aspect_ratio.num)
    3093          26 :             sar = ist->st->sample_aspect_ratio;
    3094             :         else
    3095          50 :             sar = par_src->sample_aspect_ratio;
    3096          76 :         ost->st->sample_aspect_ratio = par_dst->sample_aspect_ratio = sar;
    3097          76 :         ost->st->avg_frame_rate = ist->st->avg_frame_rate;
    3098          76 :         ost->st->r_frame_rate = ist->st->r_frame_rate;
    3099          76 :         break;
    3100             :     }
    3101             : 
    3102         173 :     ost->mux_timebase = ist->st->time_base;
    3103             : 
    3104         173 :     return 0;
    3105             : }
    3106             : 
    3107        5049 : static void set_encoder_id(OutputFile *of, OutputStream *ost)
    3108             : {
    3109             :     AVDictionaryEntry *e;
    3110             : 
    3111             :     uint8_t *encoder_string;
    3112             :     int encoder_string_len;
    3113        5049 :     int format_flags = 0;
    3114        5049 :     int codec_flags = 0;
    3115             : 
    3116        5049 :     if (av_dict_get(ost->st->metadata, "encoder",  NULL, 0))
    3117           0 :         return;
    3118             : 
    3119        5049 :     e = av_dict_get(of->opts, "fflags", NULL, 0);
    3120        5049 :     if (e) {
    3121        4315 :         const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
    3122        4315 :         if (!o)
    3123           0 :             return;
    3124        4315 :         av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
    3125             :     }
    3126        5049 :     e = av_dict_get(ost->encoder_opts, "flags", NULL, 0);
    3127        5049 :     if (e) {
    3128        4275 :         const AVOption *o = av_opt_find(ost->enc_ctx, "flags", NULL, 0, 0);
    3129        4275 :         if (!o)
    3130           0 :             return;
    3131        4275 :         av_opt_eval_flags(ost->enc_ctx, o, e->value, &codec_flags);
    3132             :     }
    3133             : 
    3134        5049 :     encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
    3135        5049 :     encoder_string     = av_mallocz(encoder_string_len);
    3136        5049 :     if (!encoder_string)
    3137           0 :         exit_program(1);
    3138             : 
    3139        5049 :     if (!(format_flags & AVFMT_FLAG_BITEXACT) && !(codec_flags & AV_CODEC_FLAG_BITEXACT))
    3140         726 :         av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
    3141             :     else
    3142        4323 :         av_strlcpy(encoder_string, "Lavc ", encoder_string_len);
    3143        5049 :     av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
    3144        5049 :     av_dict_set(&ost->st->metadata, "encoder",  encoder_string,
    3145             :                 AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
    3146             : }
    3147             : 
    3148           1 : static void parse_forced_key_frames(char *kf, OutputStream *ost,
    3149             :                                     AVCodecContext *avctx)
    3150             : {
    3151             :     char *p;
    3152           1 :     int n = 1, i, size, index = 0;
    3153             :     int64_t t, *pts;
    3154             : 
    3155          14 :     for (p = kf; *p; p++)
    3156          13 :         if (*p == ',')
    3157           1 :             n++;
    3158           1 :     size = n;
    3159           1 :     pts = av_malloc_array(size, sizeof(*pts));
    3160           1 :     if (!pts) {
    3161           0 :         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
    3162           0 :         exit_program(1);
    3163             :     }
    3164             : 
    3165           1 :     p = kf;
    3166           3 :     for (i = 0; i < n; i++) {
    3167           2 :         char *next = strchr(p, ',');
    3168             : 
    3169           2 :         if (next)
    3170           1 :             *next++ = 0;
    3171             : 
    3172           2 :         if (!memcmp(p, "chapters", 8)) {
    3173             : 
    3174           0 :             AVFormatContext *avf = output_files[ost->file_index]->ctx;
    3175             :             int j;
    3176             : 
    3177           0 :             if (avf->nb_chapters > INT_MAX - size ||
    3178           0 :                 !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
    3179             :                                      sizeof(*pts)))) {
    3180           0 :                 av_log(NULL, AV_LOG_FATAL,
    3181             :                        "Could not allocate forced key frames array.\n");
    3182           0 :                 exit_program(1);
    3183             :             }
    3184           0 :             t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
    3185           0 :             t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
    3186             : 
    3187           0 :             for (j = 0; j < avf->nb_chapters; j++) {
    3188           0 :                 AVChapter *c = avf->chapters[j];
    3189             :                 av_assert1(index < size);
    3190           0 :                 pts[index++] = av_rescale_q(c->start, c->time_base,
    3191           0 :                                             avctx->time_base) + t;
    3192             :             }
    3193             : 
    3194             :         } else {
    3195             : 
    3196           2 :             t = parse_time_or_die("force_key_frames", p, 1);
    3197             :             av_assert1(index < size);
    3198           2 :             pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
    3199             : 
    3200             :         }
    3201             : 
    3202           2 :         p = next;
    3203             :     }
    3204             : 
    3205           1 :     av_assert0(index == size);
    3206           1 :     qsort(pts, size, sizeof(*pts), compare_int64);
    3207           1 :     ost->forced_kf_count = size;
    3208           1 :     ost->forced_kf_pts   = pts;
    3209           1 : }
    3210             : 
    3211        5049 : static int init_output_stream_encode(OutputStream *ost)
    3212             : {
    3213        5049 :     InputStream *ist = get_input_stream(ost);
    3214        5049 :     AVCodecContext *enc_ctx = ost->enc_ctx;
    3215        5049 :     AVCodecContext *dec_ctx = NULL;
    3216        5049 :     AVFormatContext *oc = output_files[ost->file_index]->ctx;
    3217             :     int j, ret;
    3218             : 
    3219        5049 :     set_encoder_id(output_files[ost->file_index], ost);
    3220             : 
    3221        5049 :     if (ist) {
    3222        5019 :         ost->st->disposition          = ist->st->disposition;
    3223             : 
    3224        5019 :         dec_ctx = ist->dec_ctx;
    3225             : 
    3226        5019 :         enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
    3227             :     } else {
    3228          64 :         for (j = 0; j < oc->nb_streams; j++) {
    3229          34 :             AVStream *st = oc->streams[j];
    3230          34 :             if (st != ost->st && st->codecpar->codec_type == ost->st->codecpar->codec_type)
    3231           0 :                 break;
    3232             :         }
    3233          30 :         if (j == oc->nb_streams)
    3234          53 :             if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO ||
    3235          23 :                 ost->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
    3236          30 :                 ost->st->disposition = AV_DISPOSITION_DEFAULT;
    3237             :     }
    3238             : 
    3239        5049 :     if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
    3240        4026 :         if (!ost->frame_rate.num)
    3241        4009 :             ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
    3242        4026 :         if (ist && !ost->frame_rate.num)
    3243           0 :             ost->frame_rate = ist->framerate;
    3244        4026 :         if (ist && !ost->frame_rate.num)
    3245           0 :             ost->frame_rate = ist->st->r_frame_rate;
    3246        4026 :         if (ist && !ost->frame_rate.num) {
    3247           0 :             ost->frame_rate = (AVRational){25, 1};
    3248           0 :             av_log(NULL, AV_LOG_WARNING,
    3249             :                    "No information "
    3250             :                    "about the input framerate is available. Falling "
    3251             :                    "back to a default value of 25fps for output stream #%d:%d. Use the -r option "
    3252             :                    "if you want a different framerate.\n",
    3253             :                    ost->file_index, ost->index);
    3254             :         }
    3255             : //      ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
    3256        4026 :         if (ost->enc->supported_framerates && !ost->force_fps) {
    3257          49 :             int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
    3258          49 :             ost->frame_rate = ost->enc->supported_framerates[idx];
    3259             :         }
    3260             :         // reduce frame rate for mpeg4 to be within the spec limits
    3261        4026 :         if (enc_ctx->codec_id == AV_CODEC_ID_MPEG4) {
    3262         116 :             av_reduce(&ost->frame_rate.num, &ost->frame_rate.den,
    3263         116 :                       ost->frame_rate.num, ost->frame_rate.den, 65535);
    3264             :         }
    3265             :     }
    3266             : 
    3267        5049 :     switch (enc_ctx->codec_type) {
    3268             :     case AVMEDIA_TYPE_AUDIO:
    3269         995 :         enc_ctx->sample_fmt     = av_buffersink_get_format(ost->filter->filter);
    3270         995 :         if (dec_ctx)
    3271         988 :             enc_ctx->bits_per_raw_sample = FFMIN(dec_ctx->bits_per_raw_sample,
    3272             :                                                  av_get_bytes_per_sample(enc_ctx->sample_fmt) << 3);
    3273         995 :         enc_ctx->sample_rate    = av_buffersink_get_sample_rate(ost->filter->filter);
    3274         995 :         enc_ctx->channel_layout = av_buffersink_get_channel_layout(ost->filter->filter);
    3275         995 :         enc_ctx->channels       = av_buffersink_get_channels(ost->filter->filter);
    3276         995 :         enc_ctx->time_base      = (AVRational){ 1, enc_ctx->sample_rate };
    3277         995 :         break;
    3278             :     case AVMEDIA_TYPE_VIDEO:
    3279        4026 :         enc_ctx->time_base = av_inv_q(ost->frame_rate);
    3280        4026 :         if (!(enc_ctx->time_base.num && enc_ctx->time_base.den))
    3281           0 :             enc_ctx->time_base = av_buffersink_get_time_base(ost->filter->filter);
    3282        4026 :         if (   av_q2d(enc_ctx->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
    3283           2 :            && (video_sync_method == VSYNC_CFR || video_sync_method == VSYNC_VSCFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
    3284           0 :             av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
    3285             :                                        "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
    3286             :         }
    3287        4026 :         for (j = 0; j < ost->forced_kf_count; j++)
    3288           0 :             ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
    3289           0 :                                                  AV_TIME_BASE_Q,
    3290             :                                                  enc_ctx->time_base);
    3291             : 
    3292        4026 :         enc_ctx->width  = av_buffersink_get_w(ost->filter->filter);
    3293        4026 :         enc_ctx->height = av_buffersink_get_h(ost->filter->filter);
    3294        8052 :         enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
    3295        4026 :             ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option
    3296        8052 :             av_mul_q(ost->frame_aspect_ratio, (AVRational){ enc_ctx->height, enc_ctx->width }) :
    3297        4026 :             av_buffersink_get_sample_aspect_ratio(ost->filter->filter);
    3298        4026 :         if (!strncmp(ost->enc->name, "libx264", 7) &&
    3299           0 :             enc_ctx->pix_fmt == AV_PIX_FMT_NONE &&
    3300           0 :             av_buffersink_get_format(ost->filter->filter) != AV_PIX_FMT_YUV420P)
    3301           0 :             av_log(NULL, AV_LOG_WARNING,
    3302             :                    "No pixel format specified, %s for H.264 encoding chosen.\n"
    3303             :                    "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
    3304           0 :                    av_get_pix_fmt_name(av_buffersink_get_format(ost->filter->filter)));
    3305        4063 :         if (!strncmp(ost->enc->name, "mpeg2video", 10) &&
    3306          69 :             enc_ctx->pix_fmt == AV_PIX_FMT_NONE &&
    3307          32 :             av_buffersink_get_format(ost->filter->filter) != AV_PIX_FMT_YUV420P)
    3308           0 :             av_log(NULL, AV_LOG_WARNING,
    3309             :                    "No pixel format specified, %s for MPEG-2 encoding chosen.\n"
    3310             :                    "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
    3311           0 :                    av_get_pix_fmt_name(av_buffersink_get_format(ost->filter->filter)));
    3312        4026 :         enc_ctx->pix_fmt = av_buffersink_get_format(ost->filter->filter);
    3313        4026 :         if (dec_ctx)
    3314        4003 :             enc_ctx->bits_per_raw_sample = FFMIN(dec_ctx->bits_per_raw_sample,
    3315             :                                                  av_pix_fmt_desc_get(enc_ctx->pix_fmt)->comp[0].depth);
    3316             : 
    3317        4026 :         ost->st->avg_frame_rate = ost->frame_rate;
    3318             : 
    3319        8029 :         if (!dec_ctx ||
    3320        7430 :             enc_ctx->width   != dec_ctx->width  ||
    3321        6679 :             enc_ctx->height  != dec_ctx->height ||
    3322        3252 :             enc_ctx->pix_fmt != dec_ctx->pix_fmt) {
    3323        2527 :             enc_ctx->bits_per_raw_sample = frame_bits_per_raw_sample;
    3324             :         }
    3325             : 
    3326        4026 :         if (ost->forced_keyframes) {
    3327           1 :             if (!strncmp(ost->forced_keyframes, "expr:", 5)) {
    3328           0 :                 ret = av_expr_parse(&ost->forced_keyframes_pexpr, ost->forced_keyframes+5,
    3329             :                                     forced_keyframes_const_names, NULL, NULL, NULL, NULL, 0, NULL);
    3330           0 :                 if (ret < 0) {
    3331           0 :                     av_log(NULL, AV_LOG_ERROR,
    3332           0 :                            "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5);
    3333           0 :                     return ret;
    3334             :                 }
    3335           0 :                 ost->forced_keyframes_expr_const_values[FKF_N] = 0;
    3336           0 :                 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] = 0;
    3337           0 :                 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] = NAN;
    3338           0 :                 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] = NAN;
    3339             : 
    3340             :             // Don't parse the 'forced_keyframes' in case of 'keep-source-keyframes',
    3341             :             // parse it only for static kf timings
    3342           1 :             } else if(strncmp(ost->forced_keyframes, "source", 6)) {
    3343           1 :                 parse_forced_key_frames(ost->forced_keyframes, ost, ost->enc_ctx);
    3344             :             }
    3345             :         }
    3346        4026 :         break;
    3347             :     case AVMEDIA_TYPE_SUBTITLE:
    3348          28 :         enc_ctx->time_base = AV_TIME_BASE_Q;
    3349          28 :         if (!enc_ctx->width) {
    3350          28 :             enc_ctx->width     = input_streams[ost->source_index]->st->codecpar->width;
    3351          28 :             enc_ctx->height    = input_streams[ost->source_index]->st->codecpar->height;
    3352             :         }
    3353          28 :         break;
    3354             :     case AVMEDIA_TYPE_DATA:
    3355           0 :         break;
    3356             :     default:
    3357           0 :         abort();
    3358             :         break;
    3359             :     }
    3360             : 
    3361        5049 :     ost->mux_timebase = enc_ctx->time_base;
    3362             : 
    3363        5049 :     return 0;
    3364             : }
    3365             : 
    3366        5223 : static int init_output_stream(OutputStream *ost, char *error, int error_len)
    3367             : {
    3368        5223 :     int ret = 0;
    3369             : 
    3370        5223 :     if (ost->encoding_needed) {
    3371        5049 :         AVCodec      *codec = ost->enc;
    3372        5049 :         AVCodecContext *dec = NULL;
    3373             :         InputStream *ist;
    3374             : 
    3375        5049 :         ret = init_output_stream_encode(ost);
    3376        5049 :         if (ret < 0)
    3377           0 :             return ret;
    3378             : 
    3379        5049 :         if ((ist = get_input_stream(ost)))
    3380        5019 :             dec = ist->dec_ctx;
    3381        5049 :         if (dec && dec->subtitle_header) {
    3382             :             /* ASS code assumes this buffer is null terminated so add extra byte. */
    3383          27 :             ost->enc_ctx->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
    3384          27 :             if (!ost->enc_ctx->subtitle_header)
    3385           0 :                 return AVERROR(ENOMEM);
    3386          27 :             memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
    3387          27 :             ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
    3388             :         }
    3389        5049 :         if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
    3390        2230 :             av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
    3391        6044 :         if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
    3392        1951 :             !codec->defaults &&
    3393        1849 :             !av_dict_get(ost->encoder_opts, "b", NULL, 0) &&
    3394         893 :             !av_dict_get(ost->encoder_opts, "ab", NULL, 0))
    3395         893 :             av_dict_set(&ost->encoder_opts, "b", "128000", 0);
    3396             : 
    3397        5049 :         if (ost->filter && av_buffersink_get_hw_frames_ctx(ost->filter->filter)) {
    3398           0 :             ost->enc_ctx->hw_frames_ctx = av_buffer_ref(av_buffersink_get_hw_frames_ctx(ost->filter->filter));
    3399           0 :             if (!ost->enc_ctx->hw_frames_ctx)
    3400           0 :                 return AVERROR(ENOMEM);
    3401             :         }
    3402             : 
    3403        5049 :         if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
    3404           0 :             if (ret == AVERROR_EXPERIMENTAL)
    3405           0 :                 abort_codec_experimental(codec, 1);
    3406           0 :             snprintf(error, error_len,
    3407             :                      "Error while opening encoder for output stream #%d:%d - "
    3408             :                      "maybe incorrect parameters such as bit_rate, rate, width or height",
    3409             :                     ost->file_index, ost->index);
    3410           0 :             return ret;
    3411             :         }
    3412        6044 :         if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
    3413         995 :             !(ost->enc->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE))
    3414          86 :             av_buffersink_set_frame_size(ost->filter->filter,
    3415          86 :                                             ost->enc_ctx->frame_size);
    3416        5049 :         assert_avoptions(ost->encoder_opts);
    3417        5049 :         if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000)
    3418           0 :             av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
    3419             :                                          " It takes bits/s as argument, not kbits/s\n");
    3420             : 
    3421        5049 :         ret = avcodec_parameters_from_context(ost->st->codecpar, ost->enc_ctx);
    3422        5049 :         if (ret < 0) {
    3423           0 :             av_log(NULL, AV_LOG_FATAL,
    3424             :                    "Error initializing the output stream codec context.\n");
    3425           0 :             exit_program(1);
    3426             :         }
    3427             :         /*
    3428             :          * FIXME: ost->st->codec should't be needed here anymore.
    3429             :          */
    3430        5049 :         ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx);
    3431        5049 :         if (ret < 0)
    3432           0 :             return ret;
    3433             : 
    3434        5049 :         if (ost->enc_ctx->nb_coded_side_data) {
    3435             :             int i;
    3436             : 
    3437         183 :             ost->st->side_data = av_realloc_array(NULL, ost->enc_ctx->nb_coded_side_data,
    3438             :                                                   sizeof(*ost->st->side_data));
    3439         183 :             if (!ost->st->side_data)
    3440           0 :                 return AVERROR(ENOMEM);
    3441             : 
    3442         366 :             for (i = 0; i < ost->enc_ctx->nb_coded_side_data; i++) {
    3443         183 :                 const AVPacketSideData *sd_src = &ost->enc_ctx->coded_side_data[i];
    3444         183 :                 AVPacketSideData *sd_dst = &ost->st->side_data[i];
    3445             : 
    3446         183 :                 sd_dst->data = av_malloc(sd_src->size);
    3447         183 :                 if (!sd_dst->data)
    3448           0 :                     return AVERROR(ENOMEM);
    3449         183 :                 memcpy(sd_dst->data, sd_src->data, sd_src->size);
    3450         183 :                 sd_dst->size = sd_src->size;
    3451         183 :                 sd_dst->type = sd_src->type;
    3452         183 :                 ost->st->nb_side_data++;
    3453             :             }
    3454             :         }
    3455             : 
    3456             :         // copy timebase while removing common factors
    3457        5049 :         if (ost->st->time_base.num <= 0 || ost->st->time_base.den <= 0)
    3458        5049 :             ost->st->time_base = av_add_q(ost->enc_ctx->time_base, (AVRational){0, 1});
    3459             : 
    3460             :         // copy estimated duration as a hint to the muxer
    3461        5049 :         if (ost->st->duration <= 0 && ist && ist->st->duration > 0)
    3462        3970 :             ost->st->duration = av_rescale_q(ist->st->duration, ist->st->time_base, ost->st->time_base);
    3463             : 
    3464        5049 :         ost->st->codec->codec= ost->enc_ctx->codec;
    3465         174 :     } else if (ost->stream_copy) {
    3466         173 :         ret = init_output_stream_streamcopy(ost);
    3467         173 :         if (ret < 0)
    3468           0 :             return ret;
    3469             : 
    3470             :         /*
    3471             :          * FIXME: will the codec context used by the parser during streamcopy
    3472             :          * This should go away with the new parser API.
    3473             :          */
    3474         173 :         ret = avcodec_parameters_to_context(ost->parser_avctx, ost->st->codecpar);
    3475         173 :         if (ret < 0)
    3476           0 :             return ret;
    3477             :     }
    3478             : 
    3479             :     // parse user provided disposition, and update stream values
    3480        5223 :     if (ost->disposition) {
    3481             :         static const AVOption opts[] = {
    3482             :             { "disposition"         , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, INT64_MAX, .unit = "flags" },
    3483             :             { "default"             , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DEFAULT           },    .unit = "flags" },
    3484             :             { "dub"                 , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DUB               },    .unit = "flags" },
    3485             :             { "original"            , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_ORIGINAL          },    .unit = "flags" },
    3486             :             { "comment"             , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_COMMENT           },    .unit = "flags" },
    3487             :             { "lyrics"              , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_LYRICS            },    .unit = "flags" },
    3488             :             { "karaoke"             , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_KARAOKE           },    .unit = "flags" },
    3489             :             { "forced"              , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_FORCED            },    .unit = "flags" },
    3490             :             { "hearing_impaired"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_HEARING_IMPAIRED  },    .unit = "flags" },
    3491             :             { "visual_impaired"     , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_VISUAL_IMPAIRED   },    .unit = "flags" },
    3492             :             { "clean_effects"       , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_CLEAN_EFFECTS     },    .unit = "flags" },
    3493             :             { "captions"            , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_CAPTIONS          },    .unit = "flags" },
    3494             :             { "descriptions"        , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DESCRIPTIONS      },    .unit = "flags" },
    3495             :             { "metadata"            , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_METADATA          },    .unit = "flags" },
    3496             :             { NULL },
    3497             :         };
    3498             :         static const AVClass class = {
    3499             :             .class_name = "",
    3500             :             .item_name  = av_default_item_name,
    3501             :             .option     = opts,
    3502             :             .version    = LIBAVUTIL_VERSION_INT,
    3503             :         };
    3504           0 :         const AVClass *pclass = &class;
    3505             : 
    3506           0 :         ret = av_opt_eval_flags(&pclass, &opts[0], ost->disposition, &ost->st->disposition);
    3507           0 :         if (ret < 0)
    3508           0 :             return ret;
    3509             :     }
    3510             : 
    3511             :     /* initialize bitstream filters for the output stream
    3512             :      * needs to be done here, because the codec id for streamcopy is not
    3513             :      * known until now */
    3514        5223 :     ret = init_output_bsfs(ost);
    3515        5223 :     if (ret < 0)
    3516           0 :         return ret;
    3517             : 
    3518        5223 :     ost->initialized = 1;
    3519             : 
    3520        5223 :     ret = check_init_output_file(output_files[ost->file_index], ost->file_index);
    3521        5223 :     if (ret < 0)
    3522           0 :         return ret;
    3523             : 
    3524        5223 :     return ret;
    3525             : }
    3526             : 
    3527           0 : static void report_new_stream(int input_index, AVPacket *pkt)
    3528             : {
    3529           0 :     InputFile *file = input_files[input_index];
    3530           0 :     AVStream *st = file->ctx->streams[pkt->stream_index];
    3531             : 
    3532           0 :     if (pkt->stream_index < file->nb_streams_warn)
    3533           0 :         return;
    3534           0 :     av_log(file->ctx, AV_LOG_WARNING,
    3535             :            "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
    3536           0 :            av_get_media_type_string(st->codecpar->codec_type),
    3537             :            input_index, pkt->stream_index,
    3538           0 :            pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
    3539           0 :     file->nb_streams_warn = pkt->stream_index + 1;
    3540             : }
    3541             : 
    3542        5091 : static int transcode_init(void)
    3543             : {
    3544        5091 :     int ret = 0, i, j, k;
    3545             :     AVFormatContext *oc;
    3546             :     OutputStream *ost;
    3547             :     InputStream *ist;
    3548        5091 :     char error[1024] = {0};
    3549             : 
    3550       10110 :     for (i = 0; i < nb_filtergraphs; i++) {
    3551        5019 :         FilterGraph *fg = filtergraphs[i];
    3552       10040 :         for (j = 0; j < fg->nb_outputs; j++) {
    3553        5021 :             OutputFilter *ofilter = fg->outputs[j];
    3554        5021 :             if (!ofilter->ost || ofilter->ost->source_index >= 0)
    3555        4975 :                 continue;
    3556          46 :             if (fg->nb_inputs != 1)
    3557          30 :                 continue;
    3558          17 :             for (k = nb_input_streams-1; k >= 0 ; k--)
    3559          17 :                 if (fg->inputs[0]->ist == input_streams[k])
    3560          16 :                     break;
    3561          16 :             ofilter->ost->source_index = k;
    3562             :         }
    3563             :     }
    3564             : 
    3565             :     /* init framerate emulation */
    3566       10240 :     for (i = 0; i < nb_input_files; i++) {
    3567        5149 :         InputFile *ifile = input_files[i];
    3568        5149 :         if (ifile->rate_emu)
    3569           0 :             for (j = 0; j < ifile->nb_streams; j++)
    3570           0 :                 input_streams[j + ifile->ist_index]->start = av_gettime_relative();
    3571             :     }
    3572             : 
    3573             :     /* init input streams */
    3574       10539 :     for (i = 0; i < nb_input_streams; i++)
    3575        5448 :         if ((ret = init_input_stream(i, error, sizeof(error))) < 0) {
    3576           0 :             for (i = 0; i < nb_output_streams; i++) {
    3577           0 :                 ost = output_streams[i];
    3578           0 :                 avcodec_close(ost->enc_ctx);
    3579             :             }
    3580           0 :             goto dump_format;
    3581             :         }
    3582             : 
    3583             :     /* open each encoder */
    3584       10314 :     for (i = 0; i < nb_output_streams; i++) {
    3585             :         // skip streams fed from filtergraphs until we have a frame for them
    3586        5223 :         if (output_streams[i]->filter)
    3587        5021 :             continue;
    3588             : 
    3589         202 :         ret = init_output_stream(output_streams[i], error, sizeof(error));
    3590         202 :         if (ret < 0)
    3591           0 :             goto dump_format;
    3592             :     }
    3593             : 
    3594             :     /* discard unused programs */
    3595       10240 :     for (i = 0; i < nb_input_files; i++) {
    3596        5149 :         InputFile *ifile = input_files[i];
    3597        5174 :         for (j = 0; j < ifile->ctx->nb_programs; j++) {
    3598          25 :             AVProgram *p = ifile->ctx->programs[j];
    3599          25 :             int discard  = AVDISCARD_ALL;
    3600             : 
    3601          25 :             for (k = 0; k < p->nb_stream_indexes; k++)
    3602          25 :                 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
    3603          25 :                     discard = AVDISCARD_DEFAULT;
    3604          25 :                     break;
    3605             :                 }
    3606          25 :             p->discard = discard;
    3607             :         }
    3608             :     }
    3609             : 
    3610             :     /* write headers for files with no streams */
    3611       10183 :     for (i = 0; i < nb_output_files; i++) {
    3612        5092 :         oc = output_files[i]->ctx;
    3613        5092 :         if (oc->oformat->flags & AVFMT_NOSTREAMS && oc->nb_streams == 0) {
    3614           1 :             ret = check_init_output_file(output_files[i], i);
    3615           1 :             if (ret < 0)
    3616           0 :                 goto dump_format;
    3617             :         }
    3618             :     }
    3619             : 
    3620             :  dump_format:
    3621             :     /* dump the stream mapping */
    3622        5091 :     av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
    3623       10539 :     for (i = 0; i < nb_input_streams; i++) {
    3624        5448 :         ist = input_streams[i];
    3625             : 
    3626       10479 :         for (j = 0; j < ist->nb_filters; j++) {
    3627        5031 :             if (!filtergraph_is_simple(ist->filters[j]->graph)) {
    3628         224 :                 av_log(NULL, AV_LOG_INFO, "  Stream #%d:%d (%s) -> %s",
    3629         168 :                        ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
    3630          56 :                        ist->filters[j]->name);
    3631          56 :                 if (nb_filtergraphs > 1)
    3632           0 :                     av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
    3633          56 :                 av_log(NULL, AV_LOG_INFO, "\n");
    3634             :             }
    3635             :         }
    3636             :     }
    3637             : 
    3638       10314 :     for (i = 0; i < nb_output_streams; i++) {
    3639        5223 :         ost = output_streams[i];
    3640             : 
    3641        5223 :         if (ost->attachment_filename) {
    3642             :             /* an attached file */
    3643           1 :             av_log(NULL, AV_LOG_INFO, "  File %s -> Stream #%d:%d\n",
    3644             :                    ost->attachment_filename, ost->file_index, ost->index);
    3645           1 :             continue;
    3646             :         }
    3647             : 
    3648        5222 :         if (ost->filter && !filtergraph_is_simple(ost->filter->graph)) {
    3649             :             /* output from a complex graph */
    3650          46 :             av_log(NULL, AV_LOG_INFO, "  %s", ost->filter->name);
    3651          46 :             if (nb_filtergraphs > 1)
    3652           0 :                 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
    3653             : 
    3654          92 :             av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
    3655          92 :                    ost->index, ost->enc ? ost->enc->name : "?");
    3656          46 :             continue;
    3657             :         }
    3658             : 
    3659       15528 :         av_log(NULL, AV_LOG_INFO, "  Stream #%d:%d -> #%d:%d",
    3660        5176 :                input_streams[ost->source_index]->file_index,
    3661        5176 :                input_streams[ost->source_index]->st->index,
    3662             :                ost->file_index,
    3663             :                ost->index);
    3664        5176 :         if (ost->sync_ist != input_streams[ost->source_index])
    3665           0 :             av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
    3666           0 :                    ost->sync_ist->file_index,
    3667           0 :                    ost->sync_ist->st->index);
    3668        5176 :         if (ost->stream_copy)
    3669         173 :             av_log(NULL, AV_LOG_INFO, " (copy)");
    3670             :         else {
    3671        5003 :             const AVCodec *in_codec    = input_streams[ost->source_index]->dec;
    3672        5003 :             const AVCodec *out_codec   = ost->enc;
    3673        5003 :             const char *decoder_name   = "?";
    3674        5003 :             const char *in_codec_name  = "?";
    3675        5003 :             const char *encoder_name   = "?";
    3676        5003 :             const char *out_codec_name = "?";
    3677             :             const AVCodecDescriptor *desc;
    3678             : 
    3679        5003 :             if (in_codec) {
    3680        5003 :                 decoder_name  = in_codec->name;
    3681        5003 :                 desc = avcodec_descriptor_get(in_codec->id);
    3682        5003 :                 if (desc)
    3683        5003 :                     in_codec_name = desc->name;
    3684        5003 :                 if (!strcmp(decoder_name, in_codec_name))
    3685        4854 :                     decoder_name = "native";
    3686             :             }
    3687             : 
    3688        5003 :             if (out_codec) {
    3689        5003 :                 encoder_name   = out_codec->name;
    3690        5003 :                 desc = avcodec_descriptor_get(out_codec->id);
    3691        5003 :                 if (desc)
    3692        5003 :                     out_codec_name = desc->name;
    3693        5003 :                 if (!strcmp(encoder_name, out_codec_name))
    3694        4917 :                     encoder_name = "native";
    3695             :             }
    3696             : 
    3697        5003 :             av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
    3698             :                    in_codec_name, decoder_name,
    3699             :                    out_codec_name, encoder_name);
    3700             :         }
    3701        5176 :         av_log(NULL, AV_LOG_INFO, "\n");
    3702             :     }
    3703             : 
    3704        5091 :     if (ret) {
    3705           0 :         av_log(NULL, AV_LOG_ERROR, "%s\n", error);
    3706           0 :         return ret;
    3707             :     }
    3708             : 
    3709        5091 :     transcode_init_done = 1;
    3710             : 
    3711        5091 :     return 0;
    3712             : }
    3713             : 
    3714             : /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
    3715     2740606 : static int need_output(void)
    3716             : {
    3717             :     int i;
    3718             : 
    3719     2745990 :     for (i = 0; i < nb_output_streams; i++) {
    3720     2740899 :         OutputStream *ost    = output_streams[i];
    3721     2740899 :         OutputFile *of       = output_files[ost->file_index];
    3722     2740899 :         AVFormatContext *os  = output_files[ost->file_index]->ctx;
    3723             : 
    3724     5478316 :         if (ost->finished ||
    3725     5471451 :             (os->pb && avio_tell(os->pb) >= of->limit_filesize))
    3726        3482 :             continue;
    3727     2737417 :         if (ost->frame_number >= ost->max_frames) {
    3728             :             int j;
    3729        3806 :             for (j = 0; j < of->ctx->nb_streams; j++)
    3730        1904 :                 close_output_stream(output_streams[of->ost_index + j]);
    3731        1902 :             continue;
    3732             :         }
    3733             : 
    3734     2735515 :         return 1;
    3735             :     }
    3736             : 
    3737        5091 :     return 0;
    3738             : }
    3739             : 
    3740             : /**
    3741             :  * Select the output stream to process.
    3742             :  *
    3743             :  * @return  selected output stream, or NULL if none available
    3744             :  */
    3745     2735515 : static OutputStream *choose_output(void)
    3746             : {
    3747             :     int i;
    3748     2735515 :     int64_t opts_min = INT64_MAX;
    3749     2735515 :     OutputStream *ost_min = NULL;
    3750             : 
    3751     3132182 :     for (i = 0; i < nb_output_streams; i++) {
    3752     2748550 :         OutputStream *ost = output_streams[i];
    3753     3143309 :         int64_t opts = ost->st->cur_dts == AV_NOPTS_VALUE ? INT64_MIN :
    3754      394759 :                        av_rescale_q(ost->st->cur_dts, ost->st->time_base,
    3755      394759 :                                     AV_TIME_BASE_Q);
    3756     2748550 :         if (ost->st->cur_dts == AV_NOPTS_VALUE)
    3757     2353791 :             av_log(NULL, AV_LOG_DEBUG, "cur_dts is invalid (this is harmless if it occurs once at the start per stream)\n");
    3758             : 
    3759     2748550 :         if (!ost->initialized && !ost->inputs_done)
    3760     2351883 :             return ost;
    3761             : 
    3762      396667 :         if (!ost->finished && opts < opts_min) {
    3763      388303 :             opts_min = opts;
    3764      388303 :             ost_min  = ost->unavailable ? NULL : ost;
    3765             :         }
    3766             :     }
    3767      383632 :     return ost_min;
    3768             : }
    3769             : 
    3770           0 : static void set_tty_echo(int on)
    3771             : {
    3772             : #if HAVE_TERMIOS_H
    3773             :     struct termios tty;
    3774           0 :     if (tcgetattr(0, &tty) == 0) {
    3775           0 :         if (on) tty.c_lflag |= ECHO;
    3776           0 :         else    tty.c_lflag &= ~ECHO;
    3777           0 :         tcsetattr(0, TCSANOW, &tty);
    3778             :     }
    3779             : #endif
    3780           0 : }
    3781             : 
    3782        3269 : static int check_keyboard_interaction(int64_t cur_time)
    3783             : {
    3784             :     int i, ret, key;
    3785             :     static int64_t last_time;
    3786        3269 :     if (received_nb_signals)
    3787           0 :         return AVERROR_EXIT;
    3788             :     /* read_key() returns 0 on EOF */
    3789        3269 :     if(cur_time - last_time >= 100000 && !run_as_daemon){
    3790          34 :         key =  read_key();
    3791          34 :         last_time = cur_time;
    3792             :     }else
    3793        3235 :         key = -1;
    3794        3269 :     if (key == 'q')
    3795           0 :         return AVERROR_EXIT;
    3796        3269 :     if (key == '+') av_log_set_level(av_log_get_level()+10);
    3797        3269 :     if (key == '-') av_log_set_level(av_log_get_level()-10);
    3798        3269 :     if (key == 's') qp_hist     ^= 1;
    3799        3269 :     if (key == 'h'){
    3800           0 :         if (do_hex_dump){
    3801           0 :             do_hex_dump = do_pkt_dump = 0;
    3802           0 :         } else if(do_pkt_dump){
    3803           0 :             do_hex_dump = 1;
    3804             :         } else
    3805           0 :             do_pkt_dump = 1;
    3806           0 :         av_log_set_level(AV_LOG_DEBUG);
    3807             :     }
    3808        3269 :     if (key == 'c' || key == 'C'){
    3809           0 :         char buf[4096], target[64], command[256], arg[256] = {0};
    3810             :         double time;
    3811           0 :         int k, n = 0;
    3812           0 :         fprintf(stderr, "\nEnter command: <target>|all <time>|-1 <command>[ <argument>]\n");
    3813           0 :         i = 0;
    3814           0 :         set_tty_echo(1);
    3815           0 :         while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
    3816           0 :             if (k > 0)
    3817           0 :                 buf[i++] = k;
    3818           0 :         buf[i] = 0;
    3819           0 :         set_tty_echo(0);
    3820           0 :         fprintf(stderr, "\n");
    3821           0 :         if (k > 0 &&
    3822             :             (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
    3823           0 :             av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
    3824             :                    target, time, command, arg);
    3825           0 :             for (i = 0; i < nb_filtergraphs; i++) {
    3826           0 :                 FilterGraph *fg = filtergraphs[i];
    3827           0 :                 if (fg->graph) {
    3828           0 :                     if (time < 0) {
    3829           0 :                         ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
    3830             :                                                           key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
    3831           0 :                         fprintf(stderr, "Command reply for stream %d: ret:%d res:\n%s", i, ret, buf);
    3832           0 :                     } else if (key == 'c') {
    3833           0 :                         fprintf(stderr, "Queuing commands only on filters supporting the specific command is unsupported\n");
    3834           0 :                         ret = AVERROR_PATCHWELCOME;
    3835             :                     } else {
    3836           0 :                         ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
    3837           0 :                         if (ret < 0)
    3838           0 :                             fprintf(stderr, "Queuing command failed with error %s\n", av_err2str(ret));
    3839             :                     }
    3840             :                 }
    3841             :             }
    3842             :         } else {
    3843           0 :             av_log(NULL, AV_LOG_ERROR,
    3844             :                    "Parse error, at least 3 arguments were expected, "
    3845             :                    "only %d given in string '%s'\n", n, buf);
    3846             :         }
    3847             :     }
    3848        3269 :     if (key == 'd' || key == 'D'){
    3849           0 :         int debug=0;
    3850           0 :         if(key == 'D') {
    3851           0 :             debug = input_streams[0]->st->codec->debug<<1;
    3852           0 :             if(!debug) debug = 1;
    3853           0 :             while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
    3854           0 :                 debug += debug;
    3855             :         }else{
    3856             :             char buf[32];
    3857           0 :             int k = 0;
    3858           0 :             i = 0;
    3859           0 :             set_tty_echo(1);
    3860           0 :             while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
    3861           0 :                 if (k > 0)
    3862           0 :                     buf[i++] = k;
    3863           0 :             buf[i] = 0;
    3864           0 :             set_tty_echo(0);
    3865           0 :             fprintf(stderr, "\n");
    3866           0 :             if (k <= 0 || sscanf(buf, "%d", &debug)!=1)
    3867           0 :                 fprintf(stderr,"error parsing debug value\n");
    3868             :         }
    3869           0 :         for(i=0;i<nb_input_streams;i++) {
    3870           0 :             input_streams[i]->st->codec->debug = debug;
    3871             :         }
    3872           0 :         for(i=0;i<nb_output_streams;i++) {
    3873           0 :             OutputStream *ost = output_streams[i];
    3874           0 :             ost->enc_ctx->debug = debug;
    3875             :         }
    3876           0 :         if(debug) av_log_set_level(AV_LOG_DEBUG);
    3877           0 :         fprintf(stderr,"debug=%d\n", debug);
    3878             :     }
    3879        3269 :     if (key == '?'){
    3880           0 :         fprintf(stderr, "key    function\n"
    3881             :                         "?      show this help\n"
    3882             :                         "+      increase verbosity\n"
    3883             :                         "-      decrease verbosity\n"
    3884             :                         "c      Send command to first matching filter supporting it\n"
    3885             :                         "C      Send/Queue command to all matching filters\n"
    3886             :                         "D      cycle through available debug modes\n"
    3887             :                         "h      dump packets/hex press to cycle through the 3 states\n"
    3888             :                         "q      quit\n"
    3889             :                         "s      Show QP histogram\n"
    3890             :         );
    3891             :     }
    3892        3269 :     return 0;
    3893             : }
    3894             : 
    3895             : #if HAVE_PTHREADS
    3896         130 : static void *input_thread(void *arg)
    3897             : {
    3898         130 :     InputFile *f = arg;
    3899         130 :     unsigned flags = f->non_blocking ? AV_THREAD_MESSAGE_NONBLOCK : 0;
    3900         130 :     int ret = 0;
    3901             : 
    3902        6421 :     while (1) {
    3903             :         AVPacket pkt;
    3904        6551 :         ret = av_read_frame(f->ctx, &pkt);
    3905             : 
    3906        6553 :         if (ret == AVERROR(EAGAIN)) {
    3907           0 :             av_usleep(10000);
    3908           0 :             continue;
    3909             :         }
    3910        6553 :         if (ret < 0) {
    3911          42 :             av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
    3912          42 :             break;
    3913             :         }
    3914        6511 :         ret = av_thread_message_queue_send(f->in_thread_queue, &pkt, flags);
    3915        6511 :         if (flags && ret == AVERROR(EAGAIN)) {
    3916          56 :             flags = 0;
    3917          56 :             ret = av_thread_message_queue_send(f->in_thread_queue, &pkt, flags);
    3918          56 :             av_log(f->ctx, AV_LOG_WARNING,
    3919             :                    "Thread message queue blocking; consider raising the "
    3920             :                    "thread_queue_size option (current value: %d)\n",
    3921             :                    f->thread_queue_size);
    3922             :         }
    3923        6510 :         if (ret < 0) {
    3924          89 :             if (ret != AVERROR_EOF)
    3925           0 :                 av_log(f->ctx, AV_LOG_ERROR,
    3926             :                        "Unable to send packet to main thread: %s\n",
    3927           0 :                        av_err2str(ret));
    3928          89 :             av_packet_unref(&pkt);
    3929          89 :             av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
    3930          89 :             break;
    3931             :         }
    3932             :     }
    3933             : 
    3934         262 :     return NULL;
    3935             : }
    3936             : 
    3937       15274 : static void free_input_threads(void)
    3938             : {
    3939             :     int i;
    3940             : 
    3941       30721 :     for (i = 0; i < nb_input_files; i++) {
    3942       15447 :         InputFile *f = input_files[i];
    3943             :         AVPacket pkt;
    3944             : 
    3945       15447 :         if (!f || !f->in_thread_queue)
    3946       15316 :             continue;
    3947         131 :         av_thread_message_queue_set_err_send(f->in_thread_queue, AVERROR_EOF);
    3948         968 :         while (av_thread_message_queue_recv(f->in_thread_queue, &pkt, 0) >= 0)
    3949         706 :             av_packet_unref(&pkt);
    3950             : 
    3951         131 :         pthread_join(f->thread, NULL);
    3952         131 :         f->joined = 1;
    3953         131 :         av_thread_message_queue_free(&f->in_thread_queue);
    3954             :     }
    3955       15274 : }
    3956             : 
    3957        5091 : static int init_input_threads(void)
    3958             : {
    3959             :     int i, ret;
    3960             : 
    3961        5091 :     if (nb_input_files == 1)
    3962        5018 :         return 0;
    3963             : 
    3964         204 :     for (i = 0; i < nb_input_files; i++) {
    3965         131 :         InputFile *f = input_files[i];
    3966             : 
    3967         188 :         if (f->ctx->pb ? !f->ctx->pb->seekable :
    3968          57 :             strcmp(f->ctx->iformat->name, "lavfi"))
    3969          56 :             f->non_blocking = 1;
    3970         131 :         ret = av_thread_message_queue_alloc(&f->in_thread_queue,
    3971         131 :                                             f->thread_queue_size, sizeof(AVPacket));
    3972         131 :         if (ret < 0)
    3973           0 :             return ret;
    3974             : 
    3975         131 :         if ((ret = pthread_create(&f->thread, NULL, input_thread, f))) {
    3976           0 :             av_log(NULL, AV_LOG_ERROR, "pthread_create failed: %s. Try to increase `ulimit -v` or decrease `ulimit -s`.\n", strerror(ret));
    3977           0 :             av_thread_message_queue_free(&f->in_thread_queue);
    3978           0 :             return AVERROR(ret);
    3979             :         }
    3980             :     }
    3981          73 :     return 0;
    3982             : }
    3983             : 
    3984     2349620 : static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
    3985             : {
    3986     2349620 :     return av_thread_message_queue_recv(f->in_thread_queue, pkt,
    3987     2349620 :                                         f->non_blocking ?
    3988             :                                         AV_THREAD_MESSAGE_NONBLOCK : 0);
    3989             : }
    3990             : #endif
    3991             : 
    3992     2731490 : static int get_input_packet(InputFile *f, AVPacket *pkt)
    3993             : {
    3994     2731490 :     if (f->rate_emu) {
    3995             :         int i;
    3996           0 :         for (i = 0; i < f->nb_streams; i++) {
    3997           0 :             InputStream *ist = input_streams[f->ist_index + i];
    3998           0 :             int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
    3999           0 :             int64_t now = av_gettime_relative() - ist->start;
    4000           0 :             if (pts > now)
    4001           0 :                 return AVERROR(EAGAIN);
    4002             :         }
    4003             :     }
    4004             : 
    4005             : #if HAVE_PTHREADS
    4006     2731490 :     if (nb_input_files > 1)
    4007     2349620 :         return get_input_packet_mt(f, pkt);
    4008             : #endif
    4009      381870 :     return av_read_frame(f->ctx, pkt);
    4010             : }
    4011             : 
    4012           5 : static int got_eagain(void)
    4013             : {
    4014             :     int i;
    4015           5 :     for (i = 0; i < nb_output_streams; i++)
    4016           5 :         if (output_streams[i]->unavailable)
    4017           5 :             return 1;
    4018           0 :     return 0;
    4019             : }
    4020             : 
    4021      384240 : static void reset_eagain(void)
    4022             : {
    4023             :     int i;
    4024      774719 :     for (i = 0; i < nb_input_files; i++)
    4025      390479 :         input_files[i]->eagain = 0;
    4026      781515 :     for (i = 0; i < nb_output_streams; i++)
    4027      397275 :         output_streams[i]->unavailable = 0;
    4028      384240 : }
    4029             : 
    4030             : // set duration to max(tmp, duration) in a proper time base and return duration's time_base
    4031           0 : static AVRational duration_max(int64_t tmp, int64_t *duration, AVRational tmp_time_base,
    4032             :                                 AVRational time_base)
    4033             : {
    4034             :     int ret;
    4035             : 
    4036           0 :     if (!*duration) {
    4037           0 :         *duration = tmp;
    4038           0 :         return tmp_time_base;
    4039             :     }
    4040             : 
    4041           0 :     ret = av_compare_ts(*duration, time_base, tmp, tmp_time_base);
    4042           0 :     if (ret < 0) {
    4043           0 :         *duration = tmp;
    4044           0 :         return tmp_time_base;
    4045             :     }
    4046             : 
    4047           0 :     return time_base;
    4048             : }
    4049             : 
    4050           0 : static int seek_to_start(InputFile *ifile, AVFormatContext *is)
    4051             : {
    4052             :     InputStream *ist;
    4053             :     AVCodecContext *avctx;
    4054           0 :     int i, ret, has_audio = 0;
    4055           0 :     int64_t duration = 0;
    4056             : 
    4057           0 :     ret = av_seek_frame(is, -1, is->start_time, 0);
    4058           0 :     if (ret < 0)
    4059           0 :         return ret;
    4060             : 
    4061           0 :     for (i = 0; i < ifile->nb_streams; i++) {
    4062           0 :         ist   = input_streams[ifile->ist_index + i];
    4063           0 :         avctx = ist->dec_ctx;
    4064             : 
    4065             :         // flush decoders
    4066           0 :         if (ist->decoding_needed) {
    4067           0 :             process_input_packet(ist, NULL, 1);
    4068           0 :             avcodec_flush_buffers(avctx);
    4069             :         }
    4070             : 
    4071             :         /* duration is the length of the last frame in a stream
    4072             :          * when audio stream is present we don't care about
    4073             :          * last video frame length because it's not defined exactly */
    4074           0 :         if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples)
    4075           0 :             has_audio = 1;
    4076             :     }
    4077             : 
    4078           0 :     for (i = 0; i < ifile->nb_streams; i++) {
    4079           0 :         ist   = input_streams[ifile->ist_index + i];
    4080           0 :         avctx = ist->dec_ctx;
    4081             : 
    4082           0 :         if (has_audio) {
    4083           0 :             if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples) {
    4084           0 :                 AVRational sample_rate = {1, avctx->sample_rate};
    4085             : 
    4086           0 :                 duration = av_rescale_q(ist->nb_samples, sample_rate, ist->st->time_base);
    4087             :             } else
    4088           0 :                 continue;
    4089             :         } else {
    4090           0 :             if (ist->framerate.num) {
    4091           0 :                 duration = av_rescale_q(1, ist->framerate, ist->st->time_base);
    4092           0 :             } else if (ist->st->avg_frame_rate.num) {
    4093           0 :                 duration = av_rescale_q(1, ist->st->avg_frame_rate, ist->st->time_base);
    4094           0 :             } else duration = 1;
    4095             :         }
    4096           0 :         if (!ifile->duration)
    4097           0 :             ifile->time_base = ist->st->time_base;
    4098             :         /* the total duration of the stream, max_pts - min_pts is
    4099             :          * the duration of the stream without the last frame */
    4100           0 :         duration += ist->max_pts - ist->min_pts;
    4101           0 :         ifile->time_base = duration_max(duration, &ifile->duration, ist->st->time_base,
    4102             :                                         ifile->time_base);
    4103             :     }
    4104             : 
    4105           0 :     if (ifile->loop > 0)
    4106           0 :         ifile->loop--;
    4107             : 
    4108           0 :     return ret;
    4109             : }
    4110             : 
    4111             : /*
    4112             :  * Return
    4113             :  * - 0 -- one packet was read and processed
    4114             :  * - AVERROR(EAGAIN) -- no packets were available for selected file,
    4115             :  *   this function should be called again
    4116             :  * - AVERROR_EOF -- this function should not be called again
    4117             :  */
    4118     2731490 : static int process_input(int file_index)
    4119             : {
    4120     2731490 :     InputFile *ifile = input_files[file_index];
    4121             :     AVFormatContext *is;
    4122             :     InputStream *ist;
    4123             :     AVPacket pkt;
    4124             :     int ret, i, j;
    4125             :     int64_t duration;
    4126             :     int64_t pkt_dts;
    4127             : 
    4128     2731490 :     is  = ifile->ctx;
    4129     2731490 :     ret = get_input_packet(ifile, &pkt);
    4130             : 
    4131     2731490 :     if (ret == AVERROR(EAGAIN)) {
    4132     2343866 :         ifile->eagain = 1;
    4133     2343866 :         return ret;
    4134             :     }
    4135      387624 :     if (ret < 0 && ifile->loop) {
    4136           0 :         if ((ret = seek_to_start(ifile, is)) < 0)
    4137           0 :             return ret;
    4138           0 :         ret = get_input_packet(ifile, &pkt);
    4139           0 :         if (ret == AVERROR(EAGAIN)) {
    4140           0 :             ifile->eagain = 1;
    4141           0 :             return ret;
    4142             :         }
    4143             :     }
    4144      387624 :     if (ret < 0) {
    4145        3389 :         if (ret != AVERROR_EOF) {
    4146          83 :             print_error(is->filename, ret);
    4147          83 :             if (exit_on_error)
    4148           0 :                 exit_program(1);
    4149             :         }
    4150             : 
    4151        6454 :         for (i = 0; i < ifile->nb_streams; i++) {
    4152        3651 :             ist = input_streams[ifile->ist_index + i];
    4153        3651 :             if (ist->decoding_needed) {
    4154        3315 :                 ret = process_input_packet(ist, NULL, 0);
    4155        3315 :                 if (ret>0)
    4156         586 :                     return 0;
    4157             :             }
    4158             : 
    4159             :             /* mark all outputs that don't go through lavfi as finished */
    4160        6381 :             for (j = 0; j < nb_output_streams; j++) {
    4161        3316 :                 OutputStream *ost = output_streams[j];
    4162             : 
    4163        6182 :                 if (ost->source_index == ifile->ist_index + i &&
    4164        5571 :                     (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
    4165         189 :                     finish_output_stream(ost);
    4166             :             }
    4167             :         }
    4168             : 
    4169        2803 :         ifile->eof_reached = 1;
    4170        2803 :         return AVERROR(EAGAIN);
    4171             :     }
    4172             : 
    4173      384235 :     reset_eagain();
    4174             : 
    4175      384235 :     if (do_pkt_dump) {
    4176           0 :         av_pkt_dump_log2(NULL, AV_LOG_INFO, &pkt, do_hex_dump,
    4177           0 :                          is->streams[pkt.stream_index]);
    4178             :     }
    4179             :     /* the following test is needed in case new streams appear
    4180             :        dynamically in stream : we ignore them */
    4181      384235 :     if (pkt.stream_index >= ifile->nb_streams) {
    4182           0 :         report_new_stream(file_index, &pkt);
    4183           0 :         goto discard_packet;
    4184             :     }
    4185             : 
    4186      384235 :     ist = input_streams[ifile->ist_index + pkt.stream_index];
    4187             : 
    4188      384235 :     ist->data_size += pkt.size;
    4189      384235 :     ist->nb_packets++;
    4190             : 
    4191      384235 :     if (ist->discard)
    4192        7533 :         goto discard_packet;
    4193             : 
    4194      376702 :     if (exit_on_error && (pkt.flags & AV_PKT_FLAG_CORRUPT)) {
    4195           0 :         av_log(NULL, AV_LOG_FATAL, "%s: corrupt input packet in stream %d\n", is->filename, pkt.stream_index);
    4196           0 :         exit_program(1);
    4197             :     }
    4198             : 
    4199      376702 :     if (debug_ts) {
    4200           0 :         av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
    4201             :                "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",
    4202           0 :                ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->dec_ctx->codec_type),
    4203           0 :                av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q),
    4204           0 :                av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q),
    4205           0 :                av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
    4206           0 :                av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
    4207           0 :                av_ts2str(input_files[ist->file_index]->ts_offset),
    4208           0 :                av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
    4209             :     }
    4210             : 
    4211      376702 :     if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
    4212             :         int64_t stime, stime2;
    4213             :         // Correcting starttime based on the enabled streams
    4214             :         // 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.
    4215             :         //       so we instead do it here as part of discontinuity handling
    4216         223 :         if (   ist->next_dts == AV_NOPTS_VALUE
    4217         223 :             && ifile->ts_offset == -is->start_time
    4218         221 :             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
    4219          40 :             int64_t new_start_time = INT64_MAX;
    4220         111 :             for (i=0; i<is->nb_streams; i++) {
    4221          71 :                 AVStream *st = is->streams[i];
    4222          71 :                 if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
    4223          13 :                     continue;
    4224          58 :                 new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
    4225             :             }
    4226          40 :             if (new_start_time > is->start_time) {
    4227           3 :                 av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
    4228           3 :                 ifile->ts_offset = -new_start_time;
    4229             :             }
    4230             :         }
    4231             : 
    4232         223 :         stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
    4233         223 :         stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
    4234         223 :         ist->wrap_correction_done = 1;
    4235             : 
    4236         223 :         if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
    4237           0 :             pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
    4238           0 :             ist->wrap_correction_done = 0;
    4239             :         }
    4240         223 :         if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
    4241           0 :             pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
    4242           0 :             ist->wrap_correction_done = 0;
    4243             :         }
    4244             :     }
    4245             : 
    4246             :     /* add the stream-global side data to the first packet */
    4247      376702 :     if (ist->nb_packets == 1) {
    4248        5212 :         if (ist->st->nb_side_data)
    4249         212 :             av_packet_split_side_data(&pkt);
    4250        5424 :         for (i = 0; i < ist->st->nb_side_data; i++) {
    4251         212 :             AVPacketSideData *src_sd = &ist->st->side_data[i];
    4252             :             uint8_t *dst_data;
    4253             : 
    4254         212 :             if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
    4255           0 :                 continue;
    4256         212 :             if (ist->autorotate && src_sd->type == AV_PKT_DATA_DISPLAYMATRIX)
    4257           1 :                 continue;
    4258             : 
    4259         211 :             dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
    4260         211 :             if (!dst_data)
    4261           0 :                 exit_program(1);
    4262             : 
    4263         211 :             memcpy(dst_data, src_sd->data, src_sd->size);
    4264             :         }
    4265             :     }
    4266             : 
    4267      376702 :     if (pkt.dts != AV_NOPTS_VALUE)
    4268      345463 :         pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
    4269      376702 :     if (pkt.pts != AV_NOPTS_VALUE)
    4270      343380 :         pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
    4271             : 
    4272      376702 :     if (pkt.pts != AV_NOPTS_VALUE)
    4273      343380 :         pkt.pts *= ist->ts_scale;
    4274      376702 :     if (pkt.dts != AV_NOPTS_VALUE)
    4275      345463 :         pkt.dts *= ist->ts_scale;
    4276             : 
    4277      376702 :     pkt_dts = av_rescale_q_rnd(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q, AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX);
    4278      650047 :     if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
    4279      648603 :          ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) &&
    4280      344021 :         pkt_dts != AV_NOPTS_VALUE && ist->next_dts == AV_NOPTS_VALUE && !copy_ts
    4281        5183 :         && (is->iformat->flags & AVFMT_TS_DISCONT) && ifile->last_ts != AV_NOPTS_VALUE) {
    4282          77 :         int64_t delta   = pkt_dts - ifile->last_ts;
    4283         154 :         if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
    4284          77 :             delta >  1LL*dts_delta_threshold*AV_TIME_BASE){
    4285           0 :             ifile->ts_offset -= delta;
    4286           0 :             av_log(NULL, AV_LOG_DEBUG,
    4287             :                    "Inter stream timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
    4288             :                    delta, ifile->ts_offset);
    4289           0 :             pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
    4290           0 :             if (pkt.pts != AV_NOPTS_VALUE)
    4291           0 :                 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
    4292             :         }
    4293             :     }
    4294             : 
    4295      376702 :     duration = av_rescale_q(ifile->duration, ifile->time_base, ist->st->time_base);
    4296      376702 :     if (pkt.pts != AV_NOPTS_VALUE) {
    4297      343380 :         pkt.pts += duration;
    4298      343380 :         ist->max_pts = FFMAX(pkt.pts, ist->max_pts);
    4299      343380 :         ist->min_pts = FFMIN(pkt.pts, ist->min_pts);
    4300             :     }
    4301             : 
    4302      376702 :     if (pkt.dts != AV_NOPTS_VALUE)
    4303      345463 :         pkt.dts += duration;
    4304             : 
    4305      376702 :     pkt_dts = av_rescale_q_rnd(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q, AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX);
    4306      650047 :     if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
    4307      648603 :          ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) &&
    4308      682858 :          pkt_dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
    4309      338837 :         !copy_ts) {
    4310      338764 :         int64_t delta   = pkt_dts - ist->next_dts;
    4311      338764 :         if (is->iformat->flags & AVFMT_TS_DISCONT) {
    4312       27286 :             if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
    4313       27286 :                 delta >  1LL*dts_delta_threshold*AV_TIME_BASE ||
    4314       13643 :                 pkt_dts + AV_TIME_BASE/10 < FFMAX(ist->pts, ist->dts)) {
    4315           8 :                 ifile->ts_offset -= delta;
    4316           8 :                 av_log(NULL, AV_LOG_DEBUG,
    4317             :                        "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
    4318             :                        delta, ifile->ts_offset);
    4319           8 :                 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
    4320           8 :                 if (pkt.pts != AV_NOPTS_VALUE)
    4321           8 :                     pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
    4322             :             }
    4323             :         } else {
    4324      650242 :             if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
    4325      325121 :                  delta >  1LL*dts_error_threshold*AV_TIME_BASE) {
    4326           0 :                 av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
    4327           0 :                 pkt.dts = AV_NOPTS_VALUE;
    4328             :             }
    4329      325121 :             if (pkt.pts != AV_NOPTS_VALUE){
    4330      323097 :                 int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
    4331      323097 :                 delta   = pkt_pts - ist->next_dts;
    4332      646194 :                 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
    4333      323097 :                      delta >  1LL*dts_error_threshold*AV_TIME_BASE) {
    4334           0 :                     av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
    4335           0 :                     pkt.pts = AV_NOPTS_VALUE;
    4336             :                 }
    4337             :             }
    4338             :         }
    4339             :     }
    4340             : 
    4341      376702 :     if (pkt.dts != AV_NOPTS_VALUE)
    4342      345463 :         ifile->last_ts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
    4343             : 
    4344      376702 :     if (debug_ts) {
    4345           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",
    4346           0 :                ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->dec_ctx->codec_type),
    4347           0 :                av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
    4348           0 :                av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
    4349           0 :                av_ts2str(input_files[ist->file_index]->ts_offset),
    4350           0 :                av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
    4351             :     }
    4352             : 
    4353      376702 :     sub2video_heartbeat(ist, pkt.pts);
    4354             : 
    4355      376702 :     process_input_packet(ist, &pkt, 0);
    4356             : 
    4357             : discard_packet:
    4358      384235 :     av_packet_unref(&pkt);
    4359             : 
    4360      384235 :     return 0;
    4361             : }
    4362             : 
    4363             : /**
    4364             :  * Perform a step of transcoding for the specified filter graph.
    4365             :  *
    4366             :  * @param[in]  graph     filter graph to consider
    4367             :  * @param[out] best_ist  input stream where a frame would allow to continue
    4368             :  * @return  0 for success, <0 for error
    4369             :  */
    4370      362972 : static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
    4371             : {
    4372             :     int i, ret;
    4373      362972 :     int nb_requests, nb_requests_max = 0;
    4374             :     InputFilter *ifilter;
    4375             :     InputStream *ist;
    4376             : 
    4377      362972 :     *best_ist = NULL;
    4378      362972 :     ret = avfilter_graph_request_oldest(graph->graph);
    4379      362972 :     if (ret >= 0)
    4380         901 :         return reap_filters(0);
    4381             : 
    4382      362071 :     if (ret == AVERROR_EOF) {
    4383        3119 :         ret = reap_filters(1);
    4384        6240 :         for (i = 0; i < graph->nb_outputs; i++)
    4385        3121 :             close_output_stream(graph->outputs[i]->ost);
    4386        3119 :         return ret;
    4387             :     }
    4388      358952 :     if (ret != AVERROR(EAGAIN))
    4389           0 :         return ret;
    4390             : 
    4391      722637 :     for (i = 0; i < graph->nb_inputs; i++) {
    4392      363685 :         ifilter = graph->inputs[i];
    4393      363685 :         ist = ifilter->ist;
    4394      727370 :         if (input_files[ist->file_index]->eagain ||
    4395      363685 :             input_files[ist->file_index]->eof_reached)
    4396        1114 :             continue;
    4397      362571 :         nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
    4398      362571 :         if (nb_requests > nb_requests_max) {
    4399      358952 :             nb_requests_max = nb_requests;
    4400      358952 :             *best_ist = ist;
    4401             :         }
    4402             :     }
    4403             : 
    4404      358952 :     if (!*best_ist)
    4405           0 :         for (i = 0; i < graph->nb_outputs; i++)
    4406           0 :             graph->outputs[i]->ost->unavailable = 1;
    4407             : 
    4408      358952 :     return 0;
    4409             : }
    4410             : 
    4411             : /**
    4412             :  * Run a single step of transcoding.
    4413             :  *
    4414             :  * @return  0 for success, <0 for error
    4415             :  */
    4416     2735515 : static int transcode_step(void)
    4417             : {
    4418             :     OutputStream *ost;
    4419     2735515 :     InputStream  *ist = NULL;
    4420             :     int ret;
    4421             : 
    4422     2735515 :     ost = choose_output();
    4423     2735515 :     if (!ost) {
    4424           5 :         if (got_eagain()) {
    4425           5 :             reset_eagain();
    4426           5 :             av_usleep(10000);
    4427           5 :             return 0;
    4428             :         }
    4429           0 :         av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
    4430           0 :         return AVERROR_EOF;
    4431             :     }
    4432             : 
    4433     2735510 :     if (ost->filter && !ost->filter->graph->graph) {
    4434     2351883 :         if (ifilter_has_all_input_formats(ost->filter->graph)) {
    4435           9 :             ret = configure_filtergraph(ost->filter->graph);
    4436           9 :             if (ret < 0) {
    4437           0 :                 av_log(NULL, AV_LOG_ERROR, "Error reinitializing filters!\n");
    4438           0 :                 return ret;
    4439             :             }
    4440             :         }
    4441             :     }
    4442             : 
    4443     2735510 :     if (ost->filter && ost->filter->graph->graph) {
    4444      362972 :         if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
    4445           0 :             return ret;
    4446      721924 :         if (!ist)
    4447        4020 :             return 0;
    4448     2372538 :     } else if (ost->filter) {
    4449             :         int i;
    4450     2414117 :         for (i = 0; i < ost->filter->graph->nb_inputs; i++) {
    4451     2414117 :             InputFilter *ifilter = ost->filter->graph->inputs[i];
    4452     2414117 :             if (!ifilter->ist->got_output && !input_files[ifilter->ist->file_index]->eof_reached) {
    4453     2351874 :                 ist = ifilter->ist;
    4454     2351874 :                 break;
    4455             :             }
    4456             :         }
    4457     2351874 :         if (!ist) {
    4458           0 :             ost->inputs_done = 1;
    4459           0 :             return 0;
    4460             :         }
    4461             :     } else {
    4462       20664 :         av_assert0(ost->source_index >= 0);
    4463       20664 :         ist = input_streams[ost->source_index];
    4464             :     }
    4465             : 
    4466     2731490 :     ret = process_input(ist->file_index);
    4467     2731490 :     if (ret == AVERROR(EAGAIN)) {
    4468     2346669 :         if (input_files[ist->file_index]->eagain)
    4469     2343866 :             ost->unavailable = 1;
    4470     2346669 :         return 0;
    4471             :     }
    4472             : 
    4473      384821 :     if (ret < 0)
    4474           0 :         return ret == AVERROR_EOF ? 0 : ret;
    4475             : 
    4476      384821 :     return reap_filters(0);
    4477             : }
    4478             : 
    4479             : /*
    4480             :  * The following code is the main loop of the file converter
    4481             :  */
    4482        5091 : static int transcode(void)
    4483             : {
    4484             :     int ret, i;
    4485             :     AVFormatContext *os;
    4486             :     OutputStream *ost;
    4487             :     InputStream *ist;
    4488             :     int64_t timer_start;
    4489        5091 :     int64_t total_packets_written = 0;
    4490             : 
    4491        5091 :     ret = transcode_init();
    4492        5091 :     if (ret < 0)
    4493           0 :         goto fail;
    4494             : 
    4495        5091 :     if (stdin_interaction) {
    4496          10 :         av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
    4497             :     }
    4498             : 
    4499        5091 :     timer_start = av_gettime_relative();
    4500             : 
    4501             : #if HAVE_PTHREADS
    4502        5091 :     if ((ret = init_input_threads()) < 0)
    4503           0 :         goto fail;
    4504             : #endif
    4505             : 
    4506     2745697 :     while (!received_sigterm) {
    4507     2740606 :         int64_t cur_time= av_gettime_relative();
    4508             : 
    4509             :         /* if 'q' pressed, exits */
    4510     2740606 :         if (stdin_interaction)
    4511        3269 :             if (check_keyboard_interaction(cur_time) < 0)
    4512           0 :                 break;
    4513             : 
    4514             :         /* check if there's any stream where output is still needed */
    4515     2740606 :         if (!need_output()) {
    4516        5091 :             av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
    4517        5091 :             break;
    4518             :         }
    4519             : 
    4520     2735515 :         ret = transcode_step();
    4521     2735515 :         if (ret < 0 && ret != AVERROR_EOF) {
    4522             :             char errbuf[128];
    4523           0 :             av_strerror(ret, errbuf, sizeof(errbuf));
    4524             : 
    4525           0 :             av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
    4526           0 :             break;
    4527             :         }
    4528             : 
    4529             :         /* dump report by using the output first video and audio streams */
    4530     2735515 :         print_report(0, timer_start, cur_time);
    4531             :     }
    4532             : #if HAVE_PTHREADS
    4533        5091 :     free_input_threads();
    4534             : #endif
    4535             : 
    4536             :     /* at the end of stream, we must flush the decoder buffers */
    4537       10539 :     for (i = 0; i < nb_input_streams; i++) {
    4538        5448 :         ist = input_streams[i];
    4539        5448 :         if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
    4540        2328 :             process_input_packet(ist, NULL, 0);
    4541             :         }
    4542             :     }
    4543        5091 :     flush_encoders();
    4544             : 
    4545        5091 :     term_exit();
    4546             : 
    4547             :     /* write the trailer if needed and close file */
    4548       10183 :     for (i = 0; i < nb_output_files; i++) {
    4549        5092 :         os = output_files[i]->ctx;
    4550        5092 :         if (!output_files[i]->header_written) {
    4551           0 :             av_log(NULL, AV_LOG_ERROR,
    4552             :                    "Nothing was written into output file %d (%s), because "
    4553             :                    "at least one of its streams received no packets.\n",
    4554           0 :                    i, os->filename);
    4555           0 :             continue;
    4556             :         }
    4557        5092 :         if ((ret = av_write_trailer(os)) < 0) {
    4558           0 :             av_log(NULL, AV_LOG_ERROR, "Error writing trailer of %s: %s\n", os->filename, av_err2str(ret));
    4559           0 :             if (exit_on_error)
    4560           0 :                 exit_program(1);
    4561             :         }
    4562             :     }
    4563             : 
    4564             :     /* dump report by using the first video and audio streams */
    4565        5091 :     print_report(1, timer_start, av_gettime_relative());
    4566             : 
    4567             :     /* close each encoder */
    4568       10314 :     for (i = 0; i < nb_output_streams; i++) {
    4569        5223 :         ost = output_streams[i];
    4570        5223 :         if (ost->encoding_needed) {
    4571        5049 :             av_freep(&ost->enc_ctx->stats_in);
    4572             :         }
    4573        5223 :         total_packets_written += ost->packets_written;
    4574             :     }
    4575             : 
    4576        5091 :     if (!total_packets_written && (abort_on_flags & ABORT_ON_FLAG_EMPTY_OUTPUT)) {
    4577           0 :         av_log(NULL, AV_LOG_FATAL, "Empty output\n");
    4578           0 :         exit_program(1);
    4579             :     }
    4580             : 
    4581             :     /* close each decoder */
    4582       10539 :     for (i = 0; i < nb_input_streams; i++) {
    4583        5448 :         ist = input_streams[i];
    4584        5448 :         if (ist->decoding_needed) {
    4585        5057 :             avcodec_close(ist->dec_ctx);
    4586        5057 :             if (ist->hwaccel_uninit)
    4587           0 :                 ist->hwaccel_uninit(ist->dec_ctx);
    4588             :         }
    4589             :     }
    4590             : 
    4591        5091 :     av_buffer_unref(&hw_device_ctx);
    4592             : 
    4593             :     /* finished ! */
    4594        5091 :     ret = 0;
    4595             : 
    4596             :  fail:
    4597             : #if HAVE_PTHREADS
    4598        5091 :     free_input_threads();
    4599             : #endif
    4600             : 
    4601        5091 :     if (output_streams) {
    4602       10313 :         for (i = 0; i < nb_output_streams; i++) {
    4603        5223 :             ost = output_streams[i];
    4604        5223 :             if (ost) {
    4605        5223 :                 if (ost->logfile) {
    4606           0 :                     if (fclose(ost->logfile))
    4607           0 :                         av_log(NULL, AV_LOG_ERROR,
    4608             :                                "Error closing logfile, loss of information possible: %s\n",
    4609           0 :                                av_err2str(AVERROR(errno)));
    4610           0 :                     ost->logfile = NULL;
    4611             :                 }
    4612        5223 :                 av_freep(&ost->forced_kf_pts);
    4613        5223 :                 av_freep(&ost->apad);
    4614        5223 :                 av_freep(&ost->disposition);
    4615        5223 :                 av_dict_free(&ost->encoder_opts);
    4616        5223 :                 av_dict_free(&ost->sws_dict);
    4617        5223 :                 av_dict_free(&ost->swr_opts);
    4618        5223 :                 av_dict_free(&ost->resample_opts);
    4619             :             }
    4620             :         }
    4621             :     }
    4622        5091 :     return ret;
    4623             : }
    4624             : 
    4625             : 
    4626       10182 : static int64_t getutime(void)
    4627             : {
    4628             : #if HAVE_GETRUSAGE
    4629             :     struct rusage rusage;
    4630             : 
    4631       10182 :     getrusage(RUSAGE_SELF, &rusage);
    4632       10182 :     return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
    4633             : #elif HAVE_GETPROCESSTIMES
    4634             :     HANDLE proc;
    4635             :     FILETIME c, e, k, u;
    4636             :     proc = GetCurrentProcess();
    4637             :     GetProcessTimes(proc, &c, &e, &k, &u);
    4638             :     return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
    4639             : #else
    4640             :     return av_gettime_relative();
    4641             : #endif
    4642             : }
    4643             : 
    4644           0 : static int64_t getmaxrss(void)
    4645             : {
    4646             : #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
    4647             :     struct rusage rusage;
    4648           0 :     getrusage(RUSAGE_SELF, &rusage);
    4649           0 :     return (int64_t)rusage.ru_maxrss * 1024;
    4650             : #elif HAVE_GETPROCESSMEMORYINFO
    4651             :     HANDLE proc;
    4652             :     PROCESS_MEMORY_COUNTERS memcounters;
    4653             :     proc = GetCurrentProcess();
    4654             :     memcounters.cb = sizeof(memcounters);
    4655             :     GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
    4656             :     return memcounters.PeakPagefileUsage;
    4657             : #else
    4658             :     return 0;
    4659             : #endif
    4660             : }
    4661             : 
    4662           0 : static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
    4663             : {
    4664           0 : }
    4665             : 
    4666        5092 : int main(int argc, char **argv)
    4667             : {
    4668             :     int i, ret;
    4669             :     int64_t ti;
    4670             : 
    4671        5092 :     init_dynload();
    4672             : 
    4673        5092 :     register_exit(ffmpeg_cleanup);
    4674             : 
    4675        5092 :     setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
    4676             : 
    4677        5092 :     av_log_set_flags(AV_LOG_SKIP_REPEATED);
    4678        5092 :     parse_loglevel(argc, argv, options);
    4679             : 
    4680        5092 :     if(argc>1 && !strcmp(argv[1], "-d")){
    4681           0 :         run_as_daemon=1;
    4682           0 :         av_log_set_callback(log_callback_null);
    4683           0 :         argc--;
    4684           0 :         argv++;
    4685             :     }
    4686             : 
    4687        5092 :     avcodec_register_all();
    4688             : #if CONFIG_AVDEVICE
    4689        5092 :     avdevice_register_all();
    4690             : #endif
    4691        5092 :     avfilter_register_all();
    4692        5092 :     av_register_all();
    4693        5092 :     avformat_network_init();
    4694             : 
    4695        5092 :     show_banner(argc, argv, options);
    4696             : 
    4697             :     /* parse options and open all input/output files */
    4698        5092 :     ret = ffmpeg_parse_options(argc, argv);
    4699        5091 :     if (ret < 0)
    4700           0 :         exit_program(1);
    4701             : 
    4702        5091 :     if (nb_output_files <= 0 && nb_input_files == 0) {
    4703           0 :         show_usage();
    4704           0 :         av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
    4705           0 :         exit_program(1);
    4706             :     }
    4707             : 
    4708             :     /* file converter / grab */
    4709        5091 :     if (nb_output_files <= 0) {
    4710           0 :         av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
    4711           0 :         exit_program(1);
    4712             :     }
    4713             : 
    4714             : //     if (nb_input_files == 0) {
    4715             : //         av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
    4716             : //         exit_program(1);
    4717             : //     }
    4718             : 
    4719       10183 :     for (i = 0; i < nb_output_files; i++) {
    4720        5092 :         if (strcmp(output_files[i]->ctx->oformat->name, "rtp"))
    4721        5092 :             want_sdp = 0;
    4722             :     }
    4723             : 
    4724        5091 :     current_time = ti = getutime();
    4725        5091 :     if (transcode() < 0)
    4726           0 :         exit_program(1);
    4727        5091 :     ti = getutime() - ti;
    4728        5091 :     if (do_benchmark) {
    4729           0 :         av_log(NULL, AV_LOG_INFO, "bench: utime=%0.3fs\n", ti / 1000000.0);
    4730             :     }
    4731        5091 :     av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n",
    4732             :            decode_error_stat[0], decode_error_stat[1]);
    4733        5091 :     if ((decode_error_stat[0] + decode_error_stat[1]) * max_error_rate < decode_error_stat[1])
    4734           0 :         exit_program(69);
    4735             : 
    4736        5091 :     exit_program(received_nb_signals ? 255 : main_return_code);
    4737             :     return main_return_code;
    4738             : }

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