LCOV - code coverage report
Current view: top level - src - ffmpeg.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 1845 2574 71.7 %
Date: 2017-01-23 11:54:22 Functions: 68 80 85.0 %

          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             : 
     127             : static int run_as_daemon  = 0;
     128             : static int nb_frames_dup = 0;
     129             : static unsigned dup_warning = 1000;
     130             : static int nb_frames_drop = 0;
     131             : static int64_t decode_error_stat[2];
     132             : 
     133             : static int want_sdp = 1;
     134             : 
     135             : static int current_time;
     136             : AVIOContext *progress_avio = NULL;
     137             : 
     138             : static uint8_t *subtitle_out;
     139             : 
     140             : InputStream **input_streams = NULL;
     141             : int        nb_input_streams = 0;
     142             : InputFile   **input_files   = NULL;
     143             : int        nb_input_files   = 0;
     144             : 
     145             : OutputStream **output_streams = NULL;
     146             : int         nb_output_streams = 0;
     147             : OutputFile   **output_files   = NULL;
     148             : int         nb_output_files   = 0;
     149             : 
     150             : FilterGraph **filtergraphs;
     151             : int        nb_filtergraphs;
     152             : 
     153             : #if HAVE_TERMIOS_H
     154             : 
     155             : /* init terminal so that we can grab keys */
     156             : static struct termios oldtty;
     157             : static int restore_tty;
     158             : #endif
     159             : 
     160             : #if HAVE_PTHREADS
     161             : static void free_input_threads(void);
     162             : #endif
     163             : 
     164             : /* sub2video hack:
     165             :    Convert subtitles to video with alpha to insert them in filter graphs.
     166             :    This is a temporary solution until libavfilter gets real subtitles support.
     167             :  */
     168             : 
     169          90 : static int sub2video_get_blank_frame(InputStream *ist)
     170             : {
     171             :     int ret;
     172          90 :     AVFrame *frame = ist->sub2video.frame;
     173             : 
     174          90 :     av_frame_unref(frame);
     175          90 :     ist->sub2video.frame->width  = ist->dec_ctx->width  ? ist->dec_ctx->width  : ist->sub2video.w;
     176          90 :     ist->sub2video.frame->height = ist->dec_ctx->height ? ist->dec_ctx->height : ist->sub2video.h;
     177          90 :     ist->sub2video.frame->format = AV_PIX_FMT_RGB32;
     178          90 :     if ((ret = av_frame_get_buffer(frame, 32)) < 0)
     179           0 :         return ret;
     180          90 :     memset(frame->data[0], 0, frame->height * frame->linesize[0]);
     181          90 :     return 0;
     182             : }
     183             : 
     184          44 : static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h,
     185             :                                 AVSubtitleRect *r)
     186             : {
     187             :     uint32_t *pal, *dst2;
     188             :     uint8_t *src, *src2;
     189             :     int x, y;
     190             : 
     191          44 :     if (r->type != SUBTITLE_BITMAP) {
     192           0 :         av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n");
     193           0 :         return;
     194             :     }
     195          44 :     if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) {
     196           0 :         av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle (%d %d %d %d) overflowing %d %d\n",
     197             :             r->x, r->y, r->w, r->h, w, h
     198             :         );
     199           0 :         return;
     200             :     }
     201             : 
     202          44 :     dst += r->y * dst_linesize + r->x * 4;
     203          44 :     src = r->data[0];
     204          44 :     pal = (uint32_t *)r->data[1];
     205        1642 :     for (y = 0; y < r->h; y++) {
     206        1598 :         dst2 = (uint32_t *)dst;
     207        1598 :         src2 = src;
     208      480325 :         for (x = 0; x < r->w; x++)
     209      478727 :             *(dst2++) = pal[*(src2++)];
     210        1598 :         dst += dst_linesize;
     211        1598 :         src += r->linesize[0];
     212             :     }
     213             : }
     214             : 
     215         311 : static void sub2video_push_ref(InputStream *ist, int64_t pts)
     216             : {
     217         311 :     AVFrame *frame = ist->sub2video.frame;
     218             :     int i;
     219             : 
     220             :     av_assert1(frame->data[0]);
     221         311 :     ist->sub2video.last_pts = frame->pts = pts;
     222         622 :     for (i = 0; i < ist->nb_filters; i++)
     223         311 :         av_buffersrc_add_frame_flags(ist->filters[i]->filter, frame,
     224             :                                      AV_BUFFERSRC_FLAG_KEEP_REF |
     225             :                                      AV_BUFFERSRC_FLAG_PUSH);
     226         311 : }
     227             : 
     228         563 : static void sub2video_update(InputStream *ist, AVSubtitle *sub)
     229             : {
     230         563 :     AVFrame *frame = ist->sub2video.frame;
     231             :     int8_t *dst;
     232             :     int     dst_linesize;
     233             :     int num_rects, i;
     234             :     int64_t pts, end_pts;
     235             : 
     236         563 :     if (!frame)
     237         473 :         return;
     238          90 :     if (sub) {
     239          44 :         pts       = av_rescale_q(sub->pts + sub->start_display_time * 1000LL,
     240          44 :                                  AV_TIME_BASE_Q, ist->st->time_base);
     241          44 :         end_pts   = av_rescale_q(sub->pts + sub->end_display_time   * 1000LL,
     242          44 :                                  AV_TIME_BASE_Q, ist->st->time_base);
     243          44 :         num_rects = sub->num_rects;
     244             :     } else {
     245          46 :         pts       = ist->sub2video.end_pts;
     246          46 :         end_pts   = INT64_MAX;
     247          46 :         num_rects = 0;
     248             :     }
     249          90 :     if (sub2video_get_blank_frame(ist) < 0) {
     250           0 :         av_log(ist->dec_ctx, AV_LOG_ERROR,
     251             :                "Impossible to get a blank canvas.\n");
     252           0 :         return;
     253             :     }
     254          90 :     dst          = frame->data    [0];
     255          90 :     dst_linesize = frame->linesize[0];
     256         134 :     for (i = 0; i < num_rects; i++)
     257          44 :         sub2video_copy_rect(dst, dst_linesize, frame->width, frame->height, sub->rects[i]);
     258          90 :     sub2video_push_ref(ist, pts);
     259          90 :     ist->sub2video.end_pts = end_pts;
     260             : }
     261             : 
     262      375290 : static void sub2video_heartbeat(InputStream *ist, int64_t pts)
     263             : {
     264      375290 :     InputFile *infile = input_files[ist->file_index];
     265             :     int i, j, nb_reqs;
     266             :     int64_t pts2;
     267             : 
     268             :     /* When a frame is read from a file, examine all sub2video streams in
     269             :        the same file and send the sub2video frame again. Otherwise, decoded
     270             :        video frames could be accumulating in the filter graph while a filter
     271             :        (possibly overlay) is desperately waiting for a subtitle frame. */
     272      789056 :     for (i = 0; i < infile->nb_streams; i++) {
     273      413766 :         InputStream *ist2 = input_streams[infile->ist_index + i];
     274      413766 :         if (!ist2->sub2video.frame)
     275      412874 :             continue;
     276             :         /* subtitles seem to be usually muxed ahead of other streams;
     277             :            if not, subtracting a larger time here is necessary */
     278         892 :         pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
     279             :         /* do not send the heartbeat frame if the subtitle is already ahead */
     280         892 :         if (pts2 <= ist2->sub2video.last_pts)
     281           0 :             continue;
     282         892 :         if (pts2 >= ist2->sub2video.end_pts || !ist2->sub2video.frame->data[0])
     283          44 :             sub2video_update(ist2, NULL);
     284        1784 :         for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
     285         892 :             nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
     286         892 :         if (nb_reqs)
     287         221 :             sub2video_push_ref(ist2, pts2);
     288             :     }
     289      375290 : }
     290             : 
     291          28 : static void sub2video_flush(InputStream *ist)
     292             : {
     293             :     int i;
     294             : 
     295          28 :     if (ist->sub2video.end_pts < INT64_MAX)
     296          28 :         sub2video_update(ist, NULL);
     297          30 :     for (i = 0; i < ist->nb_filters; i++)
     298           2 :         av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
     299          28 : }
     300             : 
     301             : /* end of sub2video hack */
     302             : 
     303       10137 : static void term_exit_sigsafe(void)
     304             : {
     305             : #if HAVE_TERMIOS_H
     306       10137 :     if(restore_tty)
     307           0 :         tcsetattr (0, TCSANOW, &oldtty);
     308             : #endif
     309       10137 : }
     310             : 
     311       10137 : void term_exit(void)
     312             : {
     313       10137 :     av_log(NULL, AV_LOG_QUIET, "%s", "");
     314       10137 :     term_exit_sigsafe();
     315       10137 : }
     316             : 
     317             : static volatile int received_sigterm = 0;
     318             : static volatile int received_nb_signals = 0;
     319             : static volatile int transcode_init_done = 0;
     320             : static volatile int ffmpeg_exited = 0;
     321             : static int main_return_code = 0;
     322             : 
     323             : static void
     324           0 : sigterm_handler(int sig)
     325             : {
     326           0 :     received_sigterm = sig;
     327           0 :     received_nb_signals++;
     328           0 :     term_exit_sigsafe();
     329           0 :     if(received_nb_signals > 3) {
     330           0 :         write(2/*STDERR_FILENO*/, "Received > 3 system signals, hard exiting\n",
     331             :                            strlen("Received > 3 system signals, hard exiting\n"));
     332             : 
     333           0 :         exit(123);
     334             :     }
     335           0 : }
     336             : 
     337             : #if HAVE_SETCONSOLECTRLHANDLER
     338             : static BOOL WINAPI CtrlHandler(DWORD fdwCtrlType)
     339             : {
     340             :     av_log(NULL, AV_LOG_DEBUG, "\nReceived windows signal %ld\n", fdwCtrlType);
     341             : 
     342             :     switch (fdwCtrlType)
     343             :     {
     344             :     case CTRL_C_EVENT:
     345             :     case CTRL_BREAK_EVENT:
     346             :         sigterm_handler(SIGINT);
     347             :         return TRUE;
     348             : 
     349             :     case CTRL_CLOSE_EVENT:
     350             :     case CTRL_LOGOFF_EVENT:
     351             :     case CTRL_SHUTDOWN_EVENT:
     352             :         sigterm_handler(SIGTERM);
     353             :         /* Basically, with these 3 events, when we return from this method the
     354             :            process is hard terminated, so stall as long as we need to
     355             :            to try and let the main thread(s) clean up and gracefully terminate
     356             :            (we have at most 5 seconds, but should be done far before that). */
     357             :         while (!ffmpeg_exited) {
     358             :             Sleep(0);
     359             :         }
     360             :         return TRUE;
     361             : 
     362             :     default:
     363             :         av_log(NULL, AV_LOG_ERROR, "Received unknown windows signal %ld\n", fdwCtrlType);
     364             :         return FALSE;
     365             :     }
     366             : }
     367             : #endif
     368             : 
     369        5068 : void term_init(void)
     370             : {
     371             : #if HAVE_TERMIOS_H
     372        5068 :     if (!run_as_daemon && stdin_interaction) {
     373             :         struct termios tty;
     374          10 :         if (tcgetattr (0, &tty) == 0) {
     375           0 :             oldtty = tty;
     376           0 :             restore_tty = 1;
     377             : 
     378           0 :             tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
     379             :                              |INLCR|IGNCR|ICRNL|IXON);
     380           0 :             tty.c_oflag |= OPOST;
     381           0 :             tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
     382           0 :             tty.c_cflag &= ~(CSIZE|PARENB);
     383           0 :             tty.c_cflag |= CS8;
     384           0 :             tty.c_cc[VMIN] = 1;
     385           0 :             tty.c_cc[VTIME] = 0;
     386             : 
     387           0 :             tcsetattr (0, TCSANOW, &tty);
     388             :         }
     389          10 :         signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
     390             :     }
     391             : #endif
     392             : 
     393        5068 :     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).    */
     394        5068 :     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
     395             : #ifdef SIGXCPU
     396        5068 :     signal(SIGXCPU, sigterm_handler);
     397             : #endif
     398             : #if HAVE_SETCONSOLECTRLHANDLER
     399             :     SetConsoleCtrlHandler((PHANDLER_ROUTINE) CtrlHandler, TRUE);
     400             : #endif
     401        5068 : }
     402             : 
     403             : /* read a key without blocking */
     404          44 : static int read_key(void)
     405             : {
     406             :     unsigned char ch;
     407             : #if HAVE_TERMIOS_H
     408          44 :     int n = 1;
     409             :     struct timeval tv;
     410             :     fd_set rfds;
     411             : 
     412          44 :     FD_ZERO(&rfds);
     413          44 :     FD_SET(0, &rfds);
     414          44 :     tv.tv_sec = 0;
     415          44 :     tv.tv_usec = 0;
     416          44 :     n = select(1, &rfds, NULL, NULL, &tv);
     417          44 :     if (n > 0) {
     418          44 :         n = read(0, &ch, 1);
     419          44 :         if (n == 1)
     420           0 :             return ch;
     421             : 
     422          44 :         return n;
     423             :     }
     424             : #elif HAVE_KBHIT
     425             : #    if HAVE_PEEKNAMEDPIPE
     426             :     static int is_pipe;
     427             :     static HANDLE input_handle;
     428             :     DWORD dw, nchars;
     429             :     if(!input_handle){
     430             :         input_handle = GetStdHandle(STD_INPUT_HANDLE);
     431             :         is_pipe = !GetConsoleMode(input_handle, &dw);
     432             :     }
     433             : 
     434             :     if (is_pipe) {
     435             :         /* When running under a GUI, you will end here. */
     436             :         if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL)) {
     437             :             // input pipe may have been closed by the program that ran ffmpeg
     438             :             return -1;
     439             :         }
     440             :         //Read it
     441             :         if(nchars != 0) {
     442             :             read(0, &ch, 1);
     443             :             return ch;
     444             :         }else{
     445             :             return -1;
     446             :         }
     447             :     }
     448             : #    endif
     449             :     if(kbhit())
     450             :         return(getch());
     451             : #endif
     452           0 :     return -1;
     453             : }
     454             : 
     455      830230 : static int decode_interrupt_cb(void *ctx)
     456             : {
     457      830230 :     return received_nb_signals > transcode_init_done;
     458             : }
     459             : 
     460             : const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
     461             : 
     462        5069 : static void ffmpeg_cleanup(int ret)
     463             : {
     464             :     int i, j;
     465             : 
     466        5069 :     if (do_benchmark) {
     467           0 :         int maxrss = getmaxrss() / 1024;
     468           0 :         av_log(NULL, AV_LOG_INFO, "bench: maxrss=%ikB\n", maxrss);
     469             :     }
     470             : 
     471       10066 :     for (i = 0; i < nb_filtergraphs; i++) {
     472        4997 :         FilterGraph *fg = filtergraphs[i];
     473        4997 :         avfilter_graph_free(&fg->graph);
     474       10008 :         for (j = 0; j < fg->nb_inputs; j++) {
     475        5011 :             av_buffer_unref(&fg->inputs[j]->hw_frames_ctx);
     476        5011 :             av_freep(&fg->inputs[j]->name);
     477        5011 :             av_freep(&fg->inputs[j]);
     478             :         }
     479        4997 :         av_freep(&fg->inputs);
     480        9996 :         for (j = 0; j < fg->nb_outputs; j++) {
     481        4999 :             av_freep(&fg->outputs[j]->name);
     482        4999 :             av_freep(&fg->outputs[j]->formats);
     483        4999 :             av_freep(&fg->outputs[j]->channel_layouts);
     484        4999 :             av_freep(&fg->outputs[j]->sample_rates);
     485        4999 :             av_freep(&fg->outputs[j]);
     486             :         }
     487        4997 :         av_freep(&fg->outputs);
     488        4997 :         av_freep(&fg->graph_desc);
     489             : 
     490        4997 :         av_freep(&filtergraphs[i]);
     491             :     }
     492        5069 :     av_freep(&filtergraphs);
     493             : 
     494        5069 :     av_freep(&subtitle_out);
     495             : 
     496             :     /* close files */
     497       10138 :     for (i = 0; i < nb_output_files; i++) {
     498        5069 :         OutputFile *of = output_files[i];
     499             :         AVFormatContext *s;
     500        5069 :         if (!of)
     501           0 :             continue;
     502        5069 :         s = of->ctx;
     503        5069 :         if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE))
     504        5028 :             avio_closep(&s->pb);
     505        5069 :         avformat_free_context(s);
     506        5069 :         av_dict_free(&of->opts);
     507             : 
     508        5069 :         av_freep(&output_files[i]);
     509             :     }
     510       10269 :     for (i = 0; i < nb_output_streams; i++) {
     511        5200 :         OutputStream *ost = output_streams[i];
     512             : 
     513        5200 :         if (!ost)
     514           0 :             continue;
     515             : 
     516        5207 :         for (j = 0; j < ost->nb_bitstream_filters; j++)
     517           7 :             av_bsf_free(&ost->bsf_ctx[j]);
     518        5200 :         av_freep(&ost->bsf_ctx);
     519        5200 :         av_freep(&ost->bsf_extradata_updated);
     520             : 
     521        5200 :         av_frame_free(&ost->filtered_frame);
     522        5200 :         av_frame_free(&ost->last_frame);
     523        5200 :         av_dict_free(&ost->encoder_opts);
     524             : 
     525        5200 :         av_parser_close(ost->parser);
     526        5200 :         avcodec_free_context(&ost->parser_avctx);
     527             : 
     528        5200 :         av_freep(&ost->forced_keyframes);
     529        5200 :         av_expr_free(ost->forced_keyframes_pexpr);
     530        5200 :         av_freep(&ost->avfilter);
     531        5200 :         av_freep(&ost->logfile_prefix);
     532             : 
     533        5200 :         av_freep(&ost->audio_channels_map);
     534        5200 :         ost->audio_channels_mapped = 0;
     535             : 
     536        5200 :         av_dict_free(&ost->sws_dict);
     537             : 
     538        5200 :         avcodec_free_context(&ost->enc_ctx);
     539        5200 :         avcodec_parameters_free(&ost->ref_par);
     540             : 
     541       10400 :         while (ost->muxing_queue && av_fifo_size(ost->muxing_queue)) {
     542             :             AVPacket pkt;
     543           0 :             av_fifo_generic_read(ost->muxing_queue, &pkt, sizeof(pkt), NULL);
     544           0 :             av_packet_unref(&pkt);
     545             :         }
     546        5200 :         av_fifo_freep(&ost->muxing_queue);
     547             : 
     548        5200 :         av_freep(&output_streams[i]);
     549             :     }
     550             : #if HAVE_PTHREADS
     551        5069 :     free_input_threads();
     552             : #endif
     553       10197 :     for (i = 0; i < nb_input_files; i++) {
     554        5128 :         avformat_close_input(&input_files[i]->ctx);
     555        5128 :         av_freep(&input_files[i]);
     556             :     }
     557       10495 :     for (i = 0; i < nb_input_streams; i++) {
     558        5426 :         InputStream *ist = input_streams[i];
     559             : 
     560        5426 :         av_frame_free(&ist->decoded_frame);
     561        5426 :         av_frame_free(&ist->filter_frame);
     562        5426 :         av_dict_free(&ist->decoder_opts);
     563        5426 :         avsubtitle_free(&ist->prev_sub.subtitle);
     564        5426 :         av_frame_free(&ist->sub2video.frame);
     565        5426 :         av_freep(&ist->filters);
     566        5426 :         av_freep(&ist->hwaccel_device);
     567        5426 :         av_freep(&ist->dts_buffer);
     568             : 
     569        5426 :         avcodec_free_context(&ist->dec_ctx);
     570             : 
     571        5426 :         av_freep(&input_streams[i]);
     572             :     }
     573             : 
     574        5069 :     if (vstats_file) {
     575           0 :         if (fclose(vstats_file))
     576           0 :             av_log(NULL, AV_LOG_ERROR,
     577             :                    "Error closing vstats file, loss of information possible: %s\n",
     578           0 :                    av_err2str(AVERROR(errno)));
     579             :     }
     580        5069 :     av_freep(&vstats_filename);
     581             : 
     582        5069 :     av_freep(&input_streams);
     583        5069 :     av_freep(&input_files);
     584        5069 :     av_freep(&output_streams);
     585        5069 :     av_freep(&output_files);
     586             : 
     587        5069 :     uninit_opts();
     588             : 
     589        5069 :     avformat_network_deinit();
     590             : 
     591        5069 :     if (received_sigterm) {
     592           0 :         av_log(NULL, AV_LOG_INFO, "Exiting normally, received signal %d.\n",
     593             :                (int) received_sigterm);
     594        5069 :     } else if (ret && transcode_init_done) {
     595           0 :         av_log(NULL, AV_LOG_INFO, "Conversion failed!\n");
     596             :     }
     597        5069 :     term_exit();
     598        5069 :     ffmpeg_exited = 1;
     599        5069 : }
     600             : 
     601        5128 : void remove_avoptions(AVDictionary **a, AVDictionary *b)
     602             : {
     603        5128 :     AVDictionaryEntry *t = NULL;
     604             : 
     605       26490 :     while ((t = av_dict_get(b, "", t, AV_DICT_IGNORE_SUFFIX))) {
     606       16234 :         av_dict_set(a, t->key, NULL, AV_DICT_MATCH_CASE);
     607             :     }
     608        5128 : }
     609             : 
     610       15190 : void assert_avoptions(AVDictionary *m)
     611             : {
     612             :     AVDictionaryEntry *t;
     613       15190 :     if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
     614           0 :         av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
     615           0 :         exit_program(1);
     616             :     }
     617       15190 : }
     618             : 
     619           0 : static void abort_codec_experimental(AVCodec *c, int encoder)
     620             : {
     621           0 :     exit_program(1);
     622             : }
     623             : 
     624     2336275 : static void update_benchmark(const char *fmt, ...)
     625             : {
     626     2336275 :     if (do_benchmark_all) {
     627           0 :         int64_t t = getutime();
     628             :         va_list va;
     629             :         char buf[1024];
     630             : 
     631           0 :         if (fmt) {
     632           0 :             va_start(va, fmt);
     633           0 :             vsnprintf(buf, sizeof(buf), fmt, va);
     634           0 :             va_end(va);
     635           0 :             av_log(NULL, AV_LOG_INFO, "bench: %8"PRIu64" %s \n", t - current_time, buf);
     636             :         }
     637           0 :         current_time = t;
     638             :     }
     639     2336275 : }
     640             : 
     641           0 : static void close_all_output_streams(OutputStream *ost, OSTFinished this_stream, OSTFinished others)
     642             : {
     643             :     int i;
     644           0 :     for (i = 0; i < nb_output_streams; i++) {
     645           0 :         OutputStream *ost2 = output_streams[i];
     646           0 :         ost2->finished |= ost == ost2 ? this_stream : others;
     647             :     }
     648           0 : }
     649             : 
     650      403658 : static void write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost)
     651             : {
     652      403658 :     AVFormatContext *s = of->ctx;
     653      403658 :     AVStream *st = ost->st;
     654             :     int ret;
     655             : 
     656      403658 :     if (!of->header_written) {
     657             :         AVPacket tmp_pkt;
     658             :         /* the muxer is not initialized yet, buffer the packet */
     659           0 :         if (!av_fifo_space(ost->muxing_queue)) {
     660           0 :             int new_size = FFMIN(2 * av_fifo_size(ost->muxing_queue),
     661             :                                  ost->max_muxing_queue_size);
     662           0 :             if (new_size <= av_fifo_size(ost->muxing_queue)) {
     663           0 :                 av_log(NULL, AV_LOG_ERROR,
     664             :                        "Too many packets buffered for output stream %d:%d.\n",
     665           0 :                        ost->file_index, ost->st->index);
     666           0 :                 exit_program(1);
     667             :             }
     668           0 :             ret = av_fifo_realloc2(ost->muxing_queue, new_size);
     669           0 :             if (ret < 0)
     670           0 :                 exit_program(1);
     671             :         }
     672           0 :         av_packet_move_ref(&tmp_pkt, pkt);
     673           0 :         av_fifo_generic_write(ost->muxing_queue, &tmp_pkt, sizeof(tmp_pkt), NULL);
     674           0 :         return;
     675             :     }
     676             : 
     677      783021 :     if ((st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
     678      684941 :         (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
     679       24295 :         pkt->pts = pkt->dts = AV_NOPTS_VALUE;
     680             : 
     681             :     /*
     682             :      * Audio encoders may split the packets --  #frames in != #packets out.
     683             :      * But there is no reordering, so we can limit the number of output packets
     684             :      * by simply dropping them here.
     685             :      * Counting encoded video frames needs to be done separately because of
     686             :      * reordering, see do_video_out()
     687             :      */
     688      403658 :     if (!(st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && ost->encoding_needed)) {
     689      310174 :         if (ost->frame_number >= ost->max_frames) {
     690         313 :             av_packet_unref(pkt);
     691         313 :             return;
     692             :         }
     693      309861 :         ost->frame_number++;
     694             :     }
     695      403345 :     if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
     696             :         int i;
     697       97070 :         uint8_t *sd = av_packet_get_side_data(pkt, AV_PKT_DATA_QUALITY_STATS,
     698             :                                               NULL);
     699       97070 :         ost->quality = sd ? AV_RL32(sd) : -1;
     700       97070 :         ost->pict_type = sd ? sd[4] : AV_PICTURE_TYPE_NONE;
     701             : 
     702      485350 :         for (i = 0; i<FF_ARRAY_ELEMS(ost->error); i++) {
     703      388280 :             if (sd && i < sd[5])
     704           0 :                 ost->error[i] = AV_RL64(sd + 8 + 8*i);
     705             :             else
     706      388280 :                 ost->error[i] = -1;
     707             :         }
     708             : 
     709       97070 :         if (ost->frame_rate.num && ost->is_cfr) {
     710        8389 :             if (pkt->duration > 0)
     711           0 :                 av_log(NULL, AV_LOG_WARNING, "Overriding packet duration by frame rate, this should not happen\n");
     712        8389 :             pkt->duration = av_rescale_q(1, av_inv_q(ost->frame_rate),
     713        8389 :                                          ost->st->time_base);
     714             :         }
     715             :     }
     716             : 
     717      403345 :     if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS)) {
     718      322349 :         if (pkt->dts != AV_NOPTS_VALUE &&
     719      297535 :             pkt->pts != AV_NOPTS_VALUE &&
     720      148508 :             pkt->dts > pkt->pts) {
     721           0 :             av_log(s, AV_LOG_WARNING, "Invalid DTS: %"PRId64" PTS: %"PRId64" in output stream %d:%d, replacing by guess\n",
     722             :                    pkt->dts, pkt->pts,
     723           0 :                    ost->file_index, ost->st->index);
     724           0 :             pkt->pts =
     725           0 :             pkt->dts = pkt->pts + pkt->dts + ost->last_mux_dts + 1
     726           0 :                      - FFMIN3(pkt->pts, pkt->dts, ost->last_mux_dts + 1)
     727           0 :                      - FFMAX3(pkt->pts, pkt->dts, ost->last_mux_dts + 1);
     728             :         }
     729      346046 :         if ((st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO || st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) &&
     730      321153 :             pkt->dts != AV_NOPTS_VALUE &&
     731      296858 :             !(st->codecpar->codec_id == AV_CODEC_ID_VP9 && ost->stream_copy) &&
     732      148376 :             ost->last_mux_dts != AV_NOPTS_VALUE) {
     733      144639 :             int64_t max = ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
     734      144639 :             if (pkt->dts < max) {
     735           0 :                 int loglevel = max - pkt->dts > 2 || st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG;
     736           0 :                 av_log(s, loglevel, "Non-monotonous DTS in output stream "
     737             :                        "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
     738           0 :                        ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
     739           0 :                 if (exit_on_error) {
     740           0 :                     av_log(NULL, AV_LOG_FATAL, "aborting.\n");
     741           0 :                     exit_program(1);
     742             :                 }
     743           0 :                 av_log(s, loglevel, "changing to %"PRId64". This may result "
     744             :                        "in incorrect timestamps in the output file.\n",
     745             :                        max);
     746           0 :                 if (pkt->pts >= pkt->dts)
     747           0 :                     pkt->pts = FFMAX(pkt->pts, max);
     748           0 :                 pkt->dts = max;
     749             :             }
     750             :         }
     751             :     }
     752      403345 :     ost->last_mux_dts = pkt->dts;
     753             : 
     754      403345 :     ost->data_size += pkt->size;
     755      403345 :     ost->packets_written++;
     756             : 
     757      403345 :     pkt->stream_index = ost->index;
     758             : 
     759      403345 :     if (debug_ts) {
     760           0 :         av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
     761             :                 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
     762           0 :                 av_get_media_type_string(ost->enc_ctx->codec_type),
     763           0 :                 av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
     764           0 :                 av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
     765             :                 pkt->size
     766             :               );
     767             :     }
     768             : 
     769      403345 :     ret = av_interleaved_write_frame(s, pkt);
     770      403345 :     if (ret < 0) {
     771           0 :         print_error("av_interleaved_write_frame()", ret);
     772           0 :         main_return_code = 1;
     773           0 :         close_all_output_streams(ost, MUXER_FINISHED | ENCODER_FINISHED, ENCODER_FINISHED);
     774             :     }
     775      403345 :     av_packet_unref(pkt);
     776             : }
     777             : 
     778        5011 : static void close_output_stream(OutputStream *ost)
     779             : {
     780        5011 :     OutputFile *of = output_files[ost->file_index];
     781             : 
     782        5011 :     ost->finished |= ENCODER_FINISHED;
     783        5011 :     if (of->shortest) {
     784           0 :         int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, AV_TIME_BASE_Q);
     785           0 :         of->recording_time = FFMIN(of->recording_time, end);
     786             :     }
     787        5011 : }
     788             : 
     789      403659 : static void output_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost)
     790             : {
     791      403659 :     int ret = 0;
     792             : 
     793             :     /* apply the output bitstream filters, if any */
     794      403659 :     if (ost->nb_bitstream_filters) {
     795             :         int idx;
     796             : 
     797         309 :         av_packet_split_side_data(pkt);
     798         309 :         ret = av_bsf_send_packet(ost->bsf_ctx[0], pkt);
     799         309 :         if (ret < 0)
     800           0 :             goto finish;
     801             : 
     802         309 :         idx = 1;
     803        1234 :         while (idx) {
     804             :             /* get a packet from the previous filter up the chain */
     805         617 :             ret = av_bsf_receive_packet(ost->bsf_ctx[idx - 1], pkt);
     806         617 :             if (ret == AVERROR(EAGAIN)) {
     807         308 :                 ret = 0;
     808         308 :                 idx--;
     809         308 :                 continue;
     810         309 :             } else if (ret < 0)
     811           1 :                 goto finish;
     812             :             /* HACK! - aac_adtstoasc updates extradata after filtering the first frame when
     813             :              * the api states this shouldn't happen after init(). Propagate it here to the
     814             :              * muxer and to the next filters in the chain to workaround this.
     815             :              * TODO/FIXME - Make aac_adtstoasc use new packet side data instead of changing
     816             :              * par_out->extradata and adapt muxers accordingly to get rid of this. */
     817         308 :             if (!(ost->bsf_extradata_updated[idx - 1] & 1)) {
     818           7 :                 ret = avcodec_parameters_copy(ost->st->codecpar, ost->bsf_ctx[idx - 1]->par_out);
     819           7 :                 if (ret < 0)
     820           0 :                     goto finish;
     821           7 :                 ost->bsf_extradata_updated[idx - 1] |= 1;
     822             :             }
     823             : 
     824             :             /* send it to the next filter down the chain or to the muxer */
     825         308 :             if (idx < ost->nb_bitstream_filters) {
     826             :                 /* HACK/FIXME! - See above */
     827           0 :                 if (!(ost->bsf_extradata_updated[idx] & 2)) {
     828           0 :                     ret = avcodec_parameters_copy(ost->bsf_ctx[idx]->par_out, ost->bsf_ctx[idx - 1]->par_out);
     829           0 :                     if (ret < 0)
     830           0 :                         goto finish;
     831           0 :                     ost->bsf_extradata_updated[idx] |= 2;
     832             :                 }
     833           0 :                 ret = av_bsf_send_packet(ost->bsf_ctx[idx], pkt);
     834           0 :                 if (ret < 0)
     835           0 :                     goto finish;
     836           0 :                 idx++;
     837             :             } else
     838         308 :                 write_packet(of, pkt, ost);
     839             :         }
     840             :     } else
     841      403350 :         write_packet(of, pkt, ost);
     842             : 
     843             : finish:
     844      403659 :     if (ret < 0 && ret != AVERROR_EOF) {
     845           1 :         av_log(NULL, AV_LOG_ERROR, "Error applying bitstream filters to an output "
     846             :                "packet for stream #%d:%d.\n", ost->file_index, ost->index);
     847           1 :         if(exit_on_error)
     848           0 :             exit_program(1);
     849             :     }
     850      403659 : }
     851             : 
     852      383731 : static int check_recording_time(OutputStream *ost)
     853             : {
     854      383731 :     OutputFile *of = output_files[ost->file_index];
     855             : 
     856      389720 :     if (of->recording_time != INT64_MAX &&
     857        5989 :         av_compare_ts(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, of->recording_time,
     858        5989 :                       AV_TIME_BASE_Q) >= 0) {
     859           1 :         close_output_stream(ost);
     860           1 :         return 0;
     861             :     }
     862      383730 :     return 1;
     863             : }
     864             : 
     865      289756 : static void do_audio_out(OutputFile *of, OutputStream *ost,
     866             :                          AVFrame *frame)
     867             : {
     868      289756 :     AVCodecContext *enc = ost->enc_ctx;
     869             :     AVPacket pkt;
     870             :     int ret;
     871             : 
     872      289756 :     av_init_packet(&pkt);
     873      289756 :     pkt.data = NULL;
     874      289756 :     pkt.size = 0;
     875             : 
     876      289756 :     if (!check_recording_time(ost))
     877           0 :         return;
     878             : 
     879      289756 :     if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
     880         341 :         frame->pts = ost->sync_opts;
     881      289756 :     ost->sync_opts = frame->pts + frame->nb_samples;
     882      289756 :     ost->samples_encoded += frame->nb_samples;
     883      289756 :     ost->frames_encoded++;
     884             : 
     885      289756 :     av_assert0(pkt.size || !pkt.data);
     886      289756 :     update_benchmark(NULL);
     887      289756 :     if (debug_ts) {
     888           0 :         av_log(NULL, AV_LOG_INFO, "encoder <- type:audio "
     889             :                "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
     890           0 :                av_ts2str(frame->pts), av_ts2timestr(frame->pts, &enc->time_base),
     891             :                enc->time_base.num, enc->time_base.den);
     892             :     }
     893             : 
     894      289756 :     ret = avcodec_send_frame(enc, frame);
     895      289756 :     if (ret < 0)
     896           0 :         goto error;
     897             : 
     898             :     while (1) {
     899      289737 :         ret = avcodec_receive_packet(enc, &pkt);
     900      579493 :         if (ret == AVERROR(EAGAIN))
     901      289756 :             break;
     902      289737 :         if (ret < 0)
     903           0 :             goto error;
     904             : 
     905      289737 :         update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
     906             : 
     907      289737 :         av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
     908             : 
     909      289737 :         if (debug_ts) {
     910           0 :             av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
     911             :                    "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
     912           0 :                    av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
     913           0 :                    av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
     914             :         }
     915             : 
     916      289737 :         output_packet(of, &pkt, ost);
     917             :     }
     918             : 
     919      289756 :     return;
     920             : error:
     921           0 :     av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
     922           0 :     exit_program(1);
     923             : }
     924             : 
     925         490 : static void do_subtitle_out(OutputFile *of,
     926             :                             OutputStream *ost,
     927             :                             AVSubtitle *sub)
     928             : {
     929         490 :     int subtitle_out_max_size = 1024 * 1024;
     930             :     int subtitle_out_size, nb, i;
     931             :     AVCodecContext *enc;
     932             :     AVPacket pkt;
     933             :     int64_t pts;
     934             : 
     935         490 :     if (sub->pts == AV_NOPTS_VALUE) {
     936           0 :         av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
     937           0 :         if (exit_on_error)
     938           0 :             exit_program(1);
     939           0 :         return;
     940             :     }
     941             : 
     942         490 :     enc = ost->enc_ctx;
     943             : 
     944         490 :     if (!subtitle_out) {
     945          27 :         subtitle_out = av_malloc(subtitle_out_max_size);
     946          27 :         if (!subtitle_out) {
     947           0 :             av_log(NULL, AV_LOG_FATAL, "Failed to allocate subtitle_out\n");
     948           0 :             exit_program(1);
     949             :         }
     950             :     }
     951             : 
     952             :     /* Note: DVB subtitle need one packet to draw them and one other
     953             :        packet to clear them */
     954             :     /* XXX: signal it in the codec context ? */
     955         490 :     if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
     956           0 :         nb = 2;
     957             :     else
     958         490 :         nb = 1;
     959             : 
     960             :     /* shift timestamp to honor -ss and make check_recording_time() work with -t */
     961         490 :     pts = sub->pts;
     962         490 :     if (output_files[ost->file_index]->start_time != AV_NOPTS_VALUE)
     963           0 :         pts -= output_files[ost->file_index]->start_time;
     964         980 :     for (i = 0; i < nb; i++) {
     965         490 :         unsigned save_num_rects = sub->num_rects;
     966             : 
     967         490 :         ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
     968         490 :         if (!check_recording_time(ost))
     969           0 :             return;
     970             : 
     971         490 :         sub->pts = pts;
     972             :         // start_display_time is required to be 0
     973         490 :         sub->pts               += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
     974         490 :         sub->end_display_time  -= sub->start_display_time;
     975         490 :         sub->start_display_time = 0;
     976         490 :         if (i == 1)
     977           0 :             sub->num_rects = 0;
     978             : 
     979         490 :         ost->frames_encoded++;
     980             : 
     981         490 :         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
     982             :                                                     subtitle_out_max_size, sub);
     983         490 :         if (i == 1)
     984           0 :             sub->num_rects = save_num_rects;
     985         490 :         if (subtitle_out_size < 0) {
     986           0 :             av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
     987           0 :             exit_program(1);
     988             :         }
     989             : 
     990         490 :         av_init_packet(&pkt);
     991         490 :         pkt.data = subtitle_out;
     992         490 :         pkt.size = subtitle_out_size;
     993         490 :         pkt.pts  = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
     994         490 :         pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
     995         490 :         if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
     996             :             /* XXX: the pts correction is handled here. Maybe handling
     997             :                it in the codec would be better */
     998           0 :             if (i == 0)
     999           0 :                 pkt.pts += 90 * sub->start_display_time;
    1000             :             else
    1001           0 :                 pkt.pts += 90 * sub->end_display_time;
    1002             :         }
    1003         490 :         pkt.dts = pkt.pts;
    1004         490 :         output_packet(of, &pkt, ost);
    1005             :     }
    1006             : }
    1007             : 
    1008       95610 : static void do_video_out(OutputFile *of,
    1009             :                          OutputStream *ost,
    1010             :                          AVFrame *next_picture,
    1011             :                          double sync_ipts)
    1012             : {
    1013             :     int ret, format_video_sync;
    1014             :     AVPacket pkt;
    1015       95610 :     AVCodecContext *enc = ost->enc_ctx;
    1016       95610 :     AVCodecParameters *mux_par = ost->st->codecpar;
    1017             :     AVRational frame_rate;
    1018             :     int nb_frames, nb0_frames, i;
    1019             :     double delta, delta0;
    1020       95610 :     double duration = 0;
    1021       95610 :     int frame_size = 0;
    1022       95610 :     InputStream *ist = NULL;
    1023       95610 :     AVFilterContext *filter = ost->filter->filter;
    1024             : 
    1025       95610 :     if (ost->source_index >= 0)
    1026       94544 :         ist = input_streams[ost->source_index];
    1027             : 
    1028       95610 :     frame_rate = av_buffersink_get_frame_rate(filter);
    1029       95610 :     if (frame_rate.num > 0 && frame_rate.den > 0)
    1030       95610 :         duration = 1/(av_q2d(frame_rate) * av_q2d(enc->time_base));
    1031             : 
    1032       95610 :     if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
    1033       60226 :         duration = FFMIN(duration, 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base)));
    1034             : 
    1035      191123 :     if (!ost->filters_script &&
    1036      185246 :         !ost->filters &&
    1037       87599 :         next_picture &&
    1038       86548 :         ist &&
    1039       86548 :         lrintf(av_frame_get_pkt_duration(next_picture) * av_q2d(ist->st->time_base) / av_q2d(enc->time_base)) > 0) {
    1040       81772 :         duration = lrintf(av_frame_get_pkt_duration(next_picture) * av_q2d(ist->st->time_base) / av_q2d(enc->time_base));
    1041             :     }
    1042             : 
    1043       95610 :     if (!next_picture) {
    1044             :         //end, flushing
    1045        2190 :         nb0_frames = nb_frames = mid_pred(ost->last_nb0_frames[0],
    1046             :                                           ost->last_nb0_frames[1],
    1047             :                                           ost->last_nb0_frames[2]);
    1048             :     } else {
    1049       93420 :         delta0 = sync_ipts - ost->sync_opts; // delta0 is the "drift" between the input frame (next_picture) and where it would fall in the output.
    1050       93420 :         delta  = delta0 + duration;
    1051             : 
    1052             :         /* by default, we output a single frame */
    1053       93420 :         nb0_frames = 0; // tracks the number of times the PREVIOUS frame should be duplicated, mostly for variable framerate (VFR)
    1054       93420 :         nb_frames = 1;
    1055             : 
    1056       93420 :         format_video_sync = video_sync_method;
    1057       93420 :         if (format_video_sync == VSYNC_AUTO) {
    1058       51106 :             if(!strcmp(of->ctx->oformat->name, "avi")) {
    1059       12100 :                 format_video_sync = VSYNC_VFR;
    1060             :             } else
    1061       39006 :                 format_video_sync = (of->ctx->oformat->flags & AVFMT_VARIABLE_FPS) ? ((of->ctx->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : VSYNC_CFR;
    1062       51106 :             if (   ist
    1063       50055 :                 && format_video_sync == VSYNC_CFR
    1064        8039 :                 && input_files[ist->file_index]->ctx->nb_streams == 1
    1065        7049 :                 && input_files[ist->file_index]->input_ts_offset == 0) {
    1066        7049 :                 format_video_sync = VSYNC_VSCFR;
    1067             :             }
    1068       51106 :             if (format_video_sync == VSYNC_CFR && copy_ts) {
    1069           0 :                 format_video_sync = VSYNC_VSCFR;
    1070             :             }
    1071             :         }
    1072       93420 :         ost->is_cfr = (format_video_sync == VSYNC_CFR || format_video_sync == VSYNC_VSCFR);
    1073             : 
    1074       93420 :         if (delta0 < 0 &&
    1075       10456 :             delta > 0 &&
    1076       10066 :             format_video_sync != VSYNC_PASSTHROUGH &&
    1077             :             format_video_sync != VSYNC_DROP) {
    1078        7281 :             if (delta0 < -0.6) {
    1079         436 :                 av_log(NULL, AV_LOG_WARNING, "Past duration %f too large\n", -delta0);
    1080             :             } else
    1081        6845 :                 av_log(NULL, AV_LOG_DEBUG, "Clipping frame in rate conversion by %f\n", -delta0);
    1082        7281 :             sync_ipts = ost->sync_opts;
    1083        7281 :             duration += delta0;
    1084        7281 :             delta0 = 0;
    1085             :         }
    1086             : 
    1087       93420 :         switch (format_video_sync) {
    1088             :         case VSYNC_VSCFR:
    1089        7049 :             if (ost->frame_number == 0 && delta0 >= 0.5) {
    1090           0 :                 av_log(NULL, AV_LOG_DEBUG, "Not duplicating %d initial frames\n", (int)lrintf(delta0));
    1091           0 :                 delta = duration;
    1092           0 :                 delta0 = 0;
    1093           0 :                 ost->sync_opts = lrint(sync_ipts);
    1094             :             }
    1095             :         case VSYNC_CFR:
    1096             :             // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
    1097        8178 :             if (frame_drop_threshold && delta < frame_drop_threshold && ost->frame_number) {
    1098           0 :                 nb_frames = 0;
    1099        8178 :             } else if (delta < -1.1)
    1100           0 :                 nb_frames = 0;
    1101        8178 :             else if (delta > 1.1) {
    1102         375 :                 nb_frames = lrintf(delta);
    1103         375 :                 if (delta0 > 1.1)
    1104           2 :                     nb0_frames = lrintf(delta0 - 0.6);
    1105             :             }
    1106        8178 :             break;
    1107             :         case VSYNC_VFR:
    1108       43070 :             if (delta <= -0.6)
    1109         144 :                 nb_frames = 0;
    1110       42926 :             else if (delta > 0.6)
    1111       42339 :                 ost->sync_opts = lrint(sync_ipts);
    1112       43070 :             break;
    1113             :         case VSYNC_DROP:
    1114             :         case VSYNC_PASSTHROUGH:
    1115       42172 :             ost->sync_opts = lrint(sync_ipts);
    1116       42172 :             break;
    1117             :         default:
    1118           0 :             av_assert0(0);
    1119             :         }
    1120             :     }
    1121             : 
    1122       95610 :     nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
    1123       95610 :     nb0_frames = FFMIN(nb0_frames, nb_frames);
    1124             : 
    1125       95610 :     memmove(ost->last_nb0_frames + 1,
    1126       95610 :             ost->last_nb0_frames,
    1127             :             sizeof(ost->last_nb0_frames[0]) * (FF_ARRAY_ELEMS(ost->last_nb0_frames) - 1));
    1128       95610 :     ost->last_nb0_frames[0] = nb0_frames;
    1129             : 
    1130       95610 :     if (nb0_frames == 0 && ost->last_dropped) {
    1131         144 :         nb_frames_drop++;
    1132         288 :         av_log(NULL, AV_LOG_VERBOSE,
    1133             :                "*** dropping frame %d from stream %d at ts %"PRId64"\n",
    1134         288 :                ost->frame_number, ost->st->index, ost->last_frame->pts);
    1135             :     }
    1136       95610 :     if (nb_frames > (nb0_frames && ost->last_dropped) + (nb_frames > nb0_frames)) {
    1137          49 :         if (nb_frames > dts_error_threshold * 30) {
    1138           0 :             av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
    1139           0 :             nb_frames_drop++;
    1140           0 :             return;
    1141             :         }
    1142          49 :         nb_frames_dup += nb_frames - (nb0_frames && ost->last_dropped) - (nb_frames > nb0_frames);
    1143          49 :         av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
    1144          49 :         if (nb_frames_dup > dup_warning) {
    1145           0 :             av_log(NULL, AV_LOG_WARNING, "More than %d frames duplicated\n", dup_warning);
    1146           0 :             dup_warning *= 10;
    1147             :         }
    1148             :     }
    1149       95610 :     ost->last_dropped = nb_frames == nb0_frames && next_picture;
    1150             : 
    1151             :   /* duplicates frame if needed */
    1152      189094 :   for (i = 0; i < nb_frames; i++) {
    1153             :     AVFrame *in_picture;
    1154       93485 :     av_init_packet(&pkt);
    1155       93485 :     pkt.data = NULL;
    1156       93485 :     pkt.size = 0;
    1157             : 
    1158       93485 :     if (i < nb0_frames && ost->last_frame) {
    1159          69 :         in_picture = ost->last_frame;
    1160             :     } else
    1161       93416 :         in_picture = next_picture;
    1162             : 
    1163       93485 :     if (!in_picture)
    1164           0 :         return;
    1165             : 
    1166       93485 :     in_picture->pts = ost->sync_opts;
    1167             : 
    1168             : #if 1
    1169       93485 :     if (!check_recording_time(ost))
    1170             : #else
    1171             :     if (ost->frame_number >= ost->max_frames)
    1172             : #endif
    1173           1 :         return;
    1174             : 
    1175             : #if FF_API_LAVF_FMT_RAWPICTURE
    1176       93484 :     if (of->ctx->oformat->flags & AVFMT_RAWPICTURE &&
    1177           0 :         enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
    1178             :         /* raw pictures are written as AVPicture structure to
    1179             :            avoid any copies. We support temporarily the older
    1180             :            method. */
    1181           0 :         if (in_picture->interlaced_frame)
    1182           0 :             mux_par->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
    1183             :         else
    1184           0 :             mux_par->field_order = AV_FIELD_PROGRESSIVE;
    1185           0 :         pkt.data   = (uint8_t *)in_picture;
    1186           0 :         pkt.size   =  sizeof(AVPicture);
    1187           0 :         pkt.pts    = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
    1188           0 :         pkt.flags |= AV_PKT_FLAG_KEY;
    1189             : 
    1190           0 :         output_packet(of, &pkt, ost);
    1191             :     } else
    1192             : #endif
    1193             :     {
    1194       93484 :         int forced_keyframe = 0;
    1195             :         double pts_time;
    1196             : 
    1197       94364 :         if (enc->flags & (AV_CODEC_FLAG_INTERLACED_DCT | AV_CODEC_FLAG_INTERLACED_ME) &&
    1198         880 :             ost->top_field_first >= 0)
    1199          25 :             in_picture->top_field_first = !!ost->top_field_first;
    1200             : 
    1201       93484 :         if (in_picture->interlaced_frame) {
    1202        6199 :             if (enc->codec->id == AV_CODEC_ID_MJPEG)
    1203           0 :                 mux_par->field_order = in_picture->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
    1204             :             else
    1205        6199 :                 mux_par->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
    1206             :         } else
    1207       87285 :             mux_par->field_order = AV_FIELD_PROGRESSIVE;
    1208             : 
    1209       93484 :         in_picture->quality = enc->global_quality;
    1210       93484 :         in_picture->pict_type = 0;
    1211             : 
    1212      186968 :         pts_time = in_picture->pts != AV_NOPTS_VALUE ?
    1213       93484 :             in_picture->pts * av_q2d(enc->time_base) : NAN;
    1214       93523 :         if (ost->forced_kf_index < ost->forced_kf_count &&
    1215          39 :             in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
    1216           2 :             ost->forced_kf_index++;
    1217           2 :             forced_keyframe = 1;
    1218       93482 :         } else if (ost->forced_keyframes_pexpr) {
    1219             :             double res;
    1220           0 :             ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
    1221           0 :             res = av_expr_eval(ost->forced_keyframes_pexpr,
    1222           0 :                                ost->forced_keyframes_expr_const_values, NULL);
    1223             :             ff_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
    1224             :                     ost->forced_keyframes_expr_const_values[FKF_N],
    1225             :                     ost->forced_keyframes_expr_const_values[FKF_N_FORCED],
    1226             :                     ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N],
    1227             :                     ost->forced_keyframes_expr_const_values[FKF_T],
    1228             :                     ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T],
    1229             :                     res);
    1230           0 :             if (res) {
    1231           0 :                 forced_keyframe = 1;
    1232           0 :                 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] =
    1233           0 :                     ost->forced_keyframes_expr_const_values[FKF_N];
    1234           0 :                 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] =
    1235           0 :                     ost->forced_keyframes_expr_const_values[FKF_T];
    1236           0 :                 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] += 1;
    1237             :             }
    1238             : 
    1239           0 :             ost->forced_keyframes_expr_const_values[FKF_N] += 1;
    1240       93482 :         } else if (   ost->forced_keyframes
    1241          48 :                    && !strncmp(ost->forced_keyframes, "source", 6)
    1242           0 :                    && in_picture->key_frame==1) {
    1243           0 :             forced_keyframe = 1;
    1244             :         }
    1245             : 
    1246       93484 :         if (forced_keyframe) {
    1247           2 :             in_picture->pict_type = AV_PICTURE_TYPE_I;
    1248           2 :             av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
    1249             :         }
    1250             : 
    1251       93484 :         update_benchmark(NULL);
    1252       93484 :         if (debug_ts) {
    1253           0 :             av_log(NULL, AV_LOG_INFO, "encoder <- type:video "
    1254             :                    "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
    1255           0 :                    av_ts2str(in_picture->pts), av_ts2timestr(in_picture->pts, &enc->time_base),
    1256             :                    enc->time_base.num, enc->time_base.den);
    1257             :         }
    1258             : 
    1259       93484 :         ost->frames_encoded++;
    1260             : 
    1261       93484 :         ret = avcodec_send_frame(enc, in_picture);
    1262       93484 :         if (ret < 0)
    1263           0 :             goto error;
    1264             : 
    1265             :         while (1) {
    1266      280076 :             ret = avcodec_receive_packet(enc, &pkt);
    1267      186780 :             update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
    1268      186780 :             if (ret == AVERROR(EAGAIN))
    1269       93484 :                 break;
    1270       93296 :             if (ret < 0)
    1271           0 :                 goto error;
    1272             : 
    1273       93296 :             if (debug_ts) {
    1274           0 :                 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
    1275             :                        "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
    1276           0 :                        av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &enc->time_base),
    1277           0 :                        av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &enc->time_base));
    1278             :             }
    1279             : 
    1280       93296 :             if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & AV_CODEC_CAP_DELAY))
    1281           0 :                 pkt.pts = ost->sync_opts;
    1282             : 
    1283       93296 :             av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
    1284             : 
    1285       93296 :             if (debug_ts) {
    1286           0 :                 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
    1287             :                     "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
    1288           0 :                     av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
    1289           0 :                     av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
    1290             :             }
    1291             : 
    1292       93296 :             frame_size = pkt.size;
    1293       93296 :             output_packet(of, &pkt, ost);
    1294             : 
    1295             :             /* if two pass, output log */
    1296       93296 :             if (ost->logfile && enc->stats_out) {
    1297           0 :                 fprintf(ost->logfile, "%s", enc->stats_out);
    1298             :             }
    1299             :         }
    1300             :     }
    1301       93484 :     ost->sync_opts++;
    1302             :     /*
    1303             :      * For video, number of frames in == number of packets out.
    1304             :      * But there may be reordering, so we can't throw away frames on encoder
    1305             :      * flush, we need to limit them here, before they go into encoder.
    1306             :      */
    1307       93484 :     ost->frame_number++;
    1308             : 
    1309       93484 :     if (vstats_filename && frame_size)
    1310           0 :         do_video_stats(ost, frame_size);
    1311             :   }
    1312             : 
    1313       95609 :     if (!ost->last_frame)
    1314        4070 :         ost->last_frame = av_frame_alloc();
    1315       95609 :     av_frame_unref(ost->last_frame);
    1316       95609 :     if (next_picture && ost->last_frame)
    1317       93419 :         av_frame_ref(ost->last_frame, next_picture);
    1318             :     else
    1319        2190 :         av_frame_free(&ost->last_frame);
    1320             : 
    1321       95609 :     return;
    1322             : error:
    1323           0 :     av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
    1324           0 :     exit_program(1);
    1325             : }
    1326             : 
    1327           0 : static double psnr(double d)
    1328             : {
    1329           0 :     return -10.0 * log10(d);
    1330             : }
    1331             : 
    1332           0 : static void do_video_stats(OutputStream *ost, int frame_size)
    1333             : {
    1334             :     AVCodecContext *enc;
    1335             :     int frame_number;
    1336             :     double ti1, bitrate, avg_bitrate;
    1337             : 
    1338             :     /* this is executed just the first time do_video_stats is called */
    1339           0 :     if (!vstats_file) {
    1340           0 :         vstats_file = fopen(vstats_filename, "w");
    1341           0 :         if (!vstats_file) {
    1342           0 :             perror("fopen");
    1343           0 :             exit_program(1);
    1344             :         }
    1345             :     }
    1346             : 
    1347           0 :     enc = ost->enc_ctx;
    1348           0 :     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
    1349           0 :         frame_number = ost->st->nb_frames;
    1350           0 :         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number,
    1351           0 :                 ost->quality / (float)FF_QP2LAMBDA);
    1352             : 
    1353           0 :         if (ost->error[0]>=0 && (enc->flags & AV_CODEC_FLAG_PSNR))
    1354           0 :             fprintf(vstats_file, "PSNR= %6.2f ", psnr(ost->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
    1355             : 
    1356           0 :         fprintf(vstats_file,"f_size= %6d ", frame_size);
    1357             :         /* compute pts value */
    1358           0 :         ti1 = av_stream_get_end_pts(ost->st) * av_q2d(ost->st->time_base);
    1359           0 :         if (ti1 < 0.01)
    1360           0 :             ti1 = 0.01;
    1361             : 
    1362           0 :         bitrate     = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
    1363           0 :         avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
    1364           0 :         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
    1365           0 :                (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
    1366           0 :         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(ost->pict_type));
    1367             :     }
    1368           0 : }
    1369             : 
    1370         188 : static void finish_output_stream(OutputStream *ost)
    1371             : {
    1372         188 :     OutputFile *of = output_files[ost->file_index];
    1373             :     int i;
    1374             : 
    1375         188 :     ost->finished = ENCODER_FINISHED | MUXER_FINISHED;
    1376             : 
    1377         188 :     if (of->shortest) {
    1378           0 :         for (i = 0; i < of->ctx->nb_streams; i++)
    1379           0 :             output_streams[of->ost_index + i]->finished = ENCODER_FINISHED | MUXER_FINISHED;
    1380             :     }
    1381         188 : }
    1382             : 
    1383             : /**
    1384             :  * Get and encode new output from any of the filtergraphs, without causing
    1385             :  * activity.
    1386             :  *
    1387             :  * @return  0 for success, <0 for severe errors
    1388             :  */
    1389      387388 : static int reap_filters(int flush)
    1390             : {
    1391      387388 :     AVFrame *filtered_frame = NULL;
    1392             :     int i;
    1393             : 
    1394             :     /* Reap all buffers present in the buffer sinks */
    1395      788142 :     for (i = 0; i < nb_output_streams; i++) {
    1396      400754 :         OutputStream *ost = output_streams[i];
    1397      400754 :         OutputFile    *of = output_files[ost->file_index];
    1398             :         AVFilterContext *filter;
    1399      400754 :         AVCodecContext *enc = ost->enc_ctx;
    1400      400754 :         int ret = 0;
    1401             : 
    1402      400754 :         if (!ost->filter)
    1403       26907 :             continue;
    1404      373847 :         filter = ost->filter->filter;
    1405             : 
    1406      373847 :         if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
    1407           0 :             return AVERROR(ENOMEM);
    1408             :         }
    1409      373847 :         filtered_frame = ost->filtered_frame;
    1410             : 
    1411      383176 :         while (1) {
    1412      757023 :             double float_pts = AV_NOPTS_VALUE; // this is identical to filtered_frame.pts but with higher precision
    1413      757023 :             ret = av_buffersink_get_frame_flags(filter, filtered_frame,
    1414             :                                                AV_BUFFERSINK_FLAG_NO_REQUEST);
    1415      757023 :             if (ret < 0) {
    1416      373847 :                 if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
    1417           0 :                     av_log(NULL, AV_LOG_WARNING,
    1418           0 :                            "Error in av_buffersink_get_frame_flags(): %s\n", av_err2str(ret));
    1419      373847 :                 } else if (flush && ret == AVERROR_EOF) {
    1420        3185 :                     if (av_buffersink_get_type(filter) == AVMEDIA_TYPE_VIDEO)
    1421        2190 :                         do_video_out(of, ost, NULL, AV_NOPTS_VALUE);
    1422             :                 }
    1423      373847 :                 break;
    1424             :             }
    1425      383176 :             if (ost->finished) {
    1426           0 :                 av_frame_unref(filtered_frame);
    1427           0 :                 continue;
    1428             :             }
    1429      383176 :             if (filtered_frame->pts != AV_NOPTS_VALUE) {
    1430      382835 :                 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
    1431      382835 :                 AVRational filter_tb = av_buffersink_get_time_base(filter);
    1432      382835 :                 AVRational tb = enc->time_base;
    1433      382835 :                 int extra_bits = av_clip(29 - av_log2(tb.den), 0, 16);
    1434             : 
    1435      382835 :                 tb.den <<= extra_bits;
    1436      382835 :                 float_pts =
    1437      765670 :                     av_rescale_q(filtered_frame->pts, filter_tb, tb) -
    1438      382835 :                     av_rescale_q(start_time, AV_TIME_BASE_Q, tb);
    1439      382835 :                 float_pts /= 1 << extra_bits;
    1440             :                 // 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
    1441      382835 :                 float_pts += FFSIGN(float_pts) * 1.0 / (1<<17);
    1442             : 
    1443      382835 :                 filtered_frame->pts =
    1444      765670 :                     av_rescale_q(filtered_frame->pts, filter_tb, enc->time_base) -
    1445      382835 :                     av_rescale_q(start_time, AV_TIME_BASE_Q, enc->time_base);
    1446             :             }
    1447             :             //if (ost->source_index >= 0)
    1448             :             //    *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
    1449             : 
    1450      383176 :             switch (av_buffersink_get_type(filter)) {
    1451             :             case AVMEDIA_TYPE_VIDEO:
    1452       93420 :                 if (!ost->frame_aspect_ratio.num)
    1453       93420 :                     enc->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
    1454             : 
    1455       93420 :                 if (debug_ts) {
    1456           0 :                     av_log(NULL, AV_LOG_INFO, "filter -> pts:%s pts_time:%s exact:%f time_base:%d/%d\n",
    1457           0 :                             av_ts2str(filtered_frame->pts), av_ts2timestr(filtered_frame->pts, &enc->time_base),
    1458             :                             float_pts,
    1459             :                             enc->time_base.num, enc->time_base.den);
    1460             :                 }
    1461             : 
    1462       93420 :                 do_video_out(of, ost, filtered_frame, float_pts);
    1463       93420 :                 break;
    1464             :             case AVMEDIA_TYPE_AUDIO:
    1465      579512 :                 if (!(enc->codec->capabilities & AV_CODEC_CAP_PARAM_CHANGE) &&
    1466      289756 :                     enc->channels != av_frame_get_channels(filtered_frame)) {
    1467           0 :                     av_log(NULL, AV_LOG_ERROR,
    1468             :                            "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
    1469           0 :                     break;
    1470             :                 }
    1471      289756 :                 do_audio_out(of, ost, filtered_frame);
    1472      289756 :                 break;
    1473             :             default:
    1474             :                 // TODO support subtitle filters
    1475           0 :                 av_assert0(0);
    1476             :             }
    1477             : 
    1478      383176 :             av_frame_unref(filtered_frame);
    1479             :         }
    1480             :     }
    1481             : 
    1482      387388 :     return 0;
    1483             : }
    1484             : 
    1485        5068 : static void print_final_stats(int64_t total_size)
    1486             : {
    1487        5068 :     uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
    1488        5068 :     uint64_t subtitle_size = 0;
    1489        5068 :     uint64_t data_size = 0;
    1490        5068 :     float percent = -1.0;
    1491             :     int i, j;
    1492        5068 :     int pass1_used = 1;
    1493             : 
    1494       10268 :     for (i = 0; i < nb_output_streams; i++) {
    1495        5200 :         OutputStream *ost = output_streams[i];
    1496        5200 :         switch (ost->enc_ctx->codec_type) {
    1497        4082 :             case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
    1498        1075 :             case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
    1499          33 :             case AVMEDIA_TYPE_SUBTITLE: subtitle_size += ost->data_size; break;
    1500          10 :             default:                 other_size += ost->data_size; break;
    1501             :         }
    1502        5200 :         extra_size += ost->enc_ctx->extradata_size;
    1503        5200 :         data_size  += ost->data_size;
    1504        5200 :         if (   (ost->enc_ctx->flags & (AV_CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))
    1505             :             != AV_CODEC_FLAG_PASS1)
    1506        5200 :             pass1_used = 0;
    1507             :     }
    1508             : 
    1509        5068 :     if (data_size && total_size>0 && total_size >= data_size)
    1510        3444 :         percent = 100.0 * (total_size - data_size) / data_size;
    1511             : 
    1512        5068 :     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: ",
    1513             :            video_size / 1024.0,
    1514             :            audio_size / 1024.0,
    1515             :            subtitle_size / 1024.0,
    1516             :            other_size / 1024.0,
    1517             :            extra_size / 1024.0);
    1518        5068 :     if (percent >= 0.0)
    1519        3444 :         av_log(NULL, AV_LOG_INFO, "%f%%", percent);
    1520             :     else
    1521        1624 :         av_log(NULL, AV_LOG_INFO, "unknown");
    1522        5068 :     av_log(NULL, AV_LOG_INFO, "\n");
    1523             : 
    1524             :     /* print verbose per-stream stats */
    1525       10196 :     for (i = 0; i < nb_input_files; i++) {
    1526        5128 :         InputFile *f = input_files[i];
    1527        5128 :         uint64_t total_packets = 0, total_size = 0;
    1528             : 
    1529        5128 :         av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
    1530        5128 :                i, f->ctx->filename);
    1531             : 
    1532       10554 :         for (j = 0; j < f->nb_streams; j++) {
    1533        5426 :             InputStream *ist = input_streams[f->ist_index + j];
    1534        5426 :             enum AVMediaType type = ist->dec_ctx->codec_type;
    1535             : 
    1536        5426 :             total_size    += ist->data_size;
    1537        5426 :             total_packets += ist->nb_packets;
    1538             : 
    1539        5426 :             av_log(NULL, AV_LOG_VERBOSE, "  Input stream #%d:%d (%s): ",
    1540             :                    i, j, media_type_string(type));
    1541        5426 :             av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
    1542             :                    ist->nb_packets, ist->data_size);
    1543             : 
    1544        5426 :             if (ist->decoding_needed) {
    1545        5036 :                 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
    1546             :                        ist->frames_decoded);
    1547        5036 :                 if (type == AVMEDIA_TYPE_AUDIO)
    1548         997 :                     av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
    1549        5036 :                 av_log(NULL, AV_LOG_VERBOSE, "; ");
    1550             :             }
    1551             : 
    1552        5426 :             av_log(NULL, AV_LOG_VERBOSE, "\n");
    1553             :         }
    1554             : 
    1555        5128 :         av_log(NULL, AV_LOG_VERBOSE, "  Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
    1556             :                total_packets, total_size);
    1557             :     }
    1558             : 
    1559       10137 :     for (i = 0; i < nb_output_files; i++) {
    1560        5069 :         OutputFile *of = output_files[i];
    1561        5069 :         uint64_t total_packets = 0, total_size = 0;
    1562             : 
    1563        5069 :         av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
    1564        5069 :                i, of->ctx->filename);
    1565             : 
    1566       10269 :         for (j = 0; j < of->ctx->nb_streams; j++) {
    1567        5200 :             OutputStream *ost = output_streams[of->ost_index + j];
    1568        5200 :             enum AVMediaType type = ost->enc_ctx->codec_type;
    1569             : 
    1570        5200 :             total_size    += ost->data_size;
    1571        5200 :             total_packets += ost->packets_written;
    1572             : 
    1573        5200 :             av_log(NULL, AV_LOG_VERBOSE, "  Output stream #%d:%d (%s): ",
    1574             :                    i, j, media_type_string(type));
    1575        5200 :             if (ost->encoding_needed) {
    1576        5026 :                 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
    1577             :                        ost->frames_encoded);
    1578        5026 :                 if (type == AVMEDIA_TYPE_AUDIO)
    1579         993 :                     av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
    1580        5026 :                 av_log(NULL, AV_LOG_VERBOSE, "; ");
    1581             :             }
    1582             : 
    1583        5200 :             av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
    1584             :                    ost->packets_written, ost->data_size);
    1585             : 
    1586        5200 :             av_log(NULL, AV_LOG_VERBOSE, "\n");
    1587             :         }
    1588             : 
    1589        5069 :         av_log(NULL, AV_LOG_VERBOSE, "  Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
    1590             :                total_packets, total_size);
    1591             :     }
    1592        5068 :     if(video_size + data_size + audio_size + subtitle_size + extra_size == 0){
    1593           5 :         av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded ");
    1594           5 :         if (pass1_used) {
    1595           1 :             av_log(NULL, AV_LOG_WARNING, "\n");
    1596             :         } else {
    1597           4 :             av_log(NULL, AV_LOG_WARNING, "(check -ss / -t / -frames parameters if used)\n");
    1598             :         }
    1599             :     }
    1600        5068 : }
    1601             : 
    1602      395396 : static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
    1603             : {
    1604             :     char buf[1024];
    1605             :     AVBPrint buf_script;
    1606             :     OutputStream *ost;
    1607             :     AVFormatContext *oc;
    1608             :     int64_t total_size;
    1609             :     AVCodecContext *enc;
    1610             :     int frame_number, vid, i;
    1611             :     double bitrate;
    1612             :     double speed;
    1613      395396 :     int64_t pts = INT64_MIN + 1;
    1614             :     static int64_t last_time = -1;
    1615             :     static int qp_histogram[52];
    1616             :     int hours, mins, secs, us;
    1617             :     int ret;
    1618             :     float t;
    1619             : 
    1620      395396 :     if (!print_stats && !is_last_report && !progress_avio)
    1621      777379 :         return;
    1622             : 
    1623        8339 :     if (!is_last_report) {
    1624        3271 :         if (last_time == -1) {
    1625          15 :             last_time = cur_time;
    1626          15 :             return;
    1627             :         }
    1628        3256 :         if ((cur_time - last_time) < 500000)
    1629        3250 :             return;
    1630           6 :         last_time = cur_time;
    1631             :     }
    1632             : 
    1633        5074 :     t = (cur_time-timer_start) / 1000000.0;
    1634             : 
    1635             : 
    1636        5074 :     oc = output_files[0]->ctx;
    1637             : 
    1638        5074 :     total_size = avio_size(oc->pb);
    1639        5074 :     if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
    1640        3785 :         total_size = avio_tell(oc->pb);
    1641             : 
    1642        5074 :     buf[0] = '\0';
    1643        5074 :     vid = 0;
    1644        5074 :     av_bprint_init(&buf_script, 0, 1);
    1645       10280 :     for (i = 0; i < nb_output_streams; i++) {
    1646        5206 :         float q = -1;
    1647        5206 :         ost = output_streams[i];
    1648        5206 :         enc = ost->enc_ctx;
    1649        5206 :         if (!ost->stream_copy)
    1650        5032 :             q = ost->quality / (float) FF_QP2LAMBDA;
    1651             : 
    1652        5206 :         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
    1653           7 :             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
    1654           7 :             av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
    1655             :                        ost->file_index, ost->index, q);
    1656             :         }
    1657        5206 :         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
    1658             :             float fps;
    1659             : 
    1660        4077 :             frame_number = ost->frame_number;
    1661        4077 :             fps = t > 1 ? frame_number / t : 0;
    1662        4077 :             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
    1663             :                      frame_number, fps < 9.95, fps, q);
    1664        4077 :             av_bprintf(&buf_script, "frame=%d\n", frame_number);
    1665        4077 :             av_bprintf(&buf_script, "fps=%.1f\n", fps);
    1666        4077 :             av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
    1667             :                        ost->file_index, ost->index, q);
    1668        4077 :             if (is_last_report)
    1669        4075 :                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
    1670        4077 :             if (qp_hist) {
    1671             :                 int j;
    1672           0 :                 int qp = lrintf(q);
    1673           0 :                 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
    1674           0 :                     qp_histogram[qp]++;
    1675           0 :                 for (j = 0; j < 32; j++)
    1676           0 :                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", av_log2(qp_histogram[j] + 1));
    1677             :             }
    1678             : 
    1679        4077 :             if ((enc->flags & AV_CODEC_FLAG_PSNR) && (ost->pict_type != AV_PICTURE_TYPE_NONE || is_last_report)) {
    1680             :                 int j;
    1681           0 :                 double error, error_sum = 0;
    1682           0 :                 double scale, scale_sum = 0;
    1683             :                 double p;
    1684           0 :                 char type[3] = { 'Y','U','V' };
    1685           0 :                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
    1686           0 :                 for (j = 0; j < 3; j++) {
    1687           0 :                     if (is_last_report) {
    1688           0 :                         error = enc->error[j];
    1689           0 :                         scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
    1690             :                     } else {
    1691           0 :                         error = ost->error[j];
    1692           0 :                         scale = enc->width * enc->height * 255.0 * 255.0;
    1693             :                     }
    1694           0 :                     if (j)
    1695           0 :                         scale /= 4;
    1696           0 :                     error_sum += error;
    1697           0 :                     scale_sum += scale;
    1698           0 :                     p = psnr(error / scale);
    1699           0 :                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
    1700           0 :                     av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
    1701           0 :                                ost->file_index, ost->index, type[j] | 32, p);
    1702             :                 }
    1703           0 :                 p = psnr(error_sum / scale_sum);
    1704           0 :                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
    1705           0 :                 av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
    1706             :                            ost->file_index, ost->index, p);
    1707             :             }
    1708        4077 :             vid = 1;
    1709             :         }
    1710             :         /* compute min output value */
    1711        5206 :         if (av_stream_get_end_pts(ost->st) != AV_NOPTS_VALUE)
    1712        5206 :             pts = FFMAX(pts, av_rescale_q(av_stream_get_end_pts(ost->st),
    1713             :                                           ost->st->time_base, AV_TIME_BASE_Q));
    1714        5206 :         if (is_last_report)
    1715        5200 :             nb_frames_drop += ost->last_dropped;
    1716             :     }
    1717             : 
    1718        5074 :     secs = FFABS(pts) / AV_TIME_BASE;
    1719        5074 :     us = FFABS(pts) % AV_TIME_BASE;
    1720        5074 :     mins = secs / 60;
    1721        5074 :     secs %= 60;
    1722        5074 :     hours = mins / 60;
    1723        5074 :     mins %= 60;
    1724             : 
    1725        5074 :     bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
    1726        5074 :     speed = t != 0.0 ? (double)pts / AV_TIME_BASE / t : -1;
    1727             : 
    1728        5074 :     if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
    1729             :                                  "size=N/A time=");
    1730        5028 :     else                snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
    1731             :                                  "size=%8.0fkB time=", total_size / 1024.0);
    1732        5074 :     if (pts < 0)
    1733           1 :         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "-");
    1734        5074 :     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
    1735             :              "%02d:%02d:%02d.%02d ", hours, mins, secs,
    1736        5074 :              (100 * us) / AV_TIME_BASE);
    1737             : 
    1738        5074 :     if (bitrate < 0) {
    1739          55 :         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),"bitrate=N/A");
    1740          55 :         av_bprintf(&buf_script, "bitrate=N/A\n");
    1741             :     }else{
    1742        5019 :         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),"bitrate=%6.1fkbits/s", bitrate);
    1743        5019 :         av_bprintf(&buf_script, "bitrate=%6.1fkbits/s\n", bitrate);
    1744             :     }
    1745             : 
    1746        5074 :     if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
    1747        5028 :     else                av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
    1748        5074 :     av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
    1749        5074 :     av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
    1750             :                hours, mins, secs, us);
    1751             : 
    1752        5074 :     if (nb_frames_dup || nb_frames_drop)
    1753          26 :         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
    1754             :                 nb_frames_dup, nb_frames_drop);
    1755        5074 :     av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
    1756        5074 :     av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
    1757             : 
    1758        5074 :     if (speed < 0) {
    1759           1 :         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf)," speed=N/A");
    1760           1 :         av_bprintf(&buf_script, "speed=N/A\n");
    1761             :     } else {
    1762        5073 :         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf)," speed=%4.3gx", speed);
    1763        5073 :         av_bprintf(&buf_script, "speed=%4.3gx\n", speed);
    1764             :     }
    1765             : 
    1766        5074 :     if (print_stats || is_last_report) {
    1767        5074 :         const char end = is_last_report ? '\n' : '\r';
    1768        5074 :         if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
    1769           0 :             fprintf(stderr, "%s    %c", buf, end);
    1770             :         } else
    1771        5074 :             av_log(NULL, AV_LOG_INFO, "%s    %c", buf, end);
    1772             : 
    1773        5074 :     fflush(stderr);
    1774             :     }
    1775             : 
    1776        5074 :     if (progress_avio) {
    1777           0 :         av_bprintf(&buf_script, "progress=%s\n",
    1778             :                    is_last_report ? "end" : "continue");
    1779           0 :         avio_write(progress_avio, buf_script.str,
    1780           0 :                    FFMIN(buf_script.len, buf_script.size - 1));
    1781           0 :         avio_flush(progress_avio);
    1782           0 :         av_bprint_finalize(&buf_script, NULL);
    1783           0 :         if (is_last_report) {
    1784           0 :             if ((ret = avio_closep(&progress_avio)) < 0)
    1785           0 :                 av_log(NULL, AV_LOG_ERROR,
    1786           0 :                        "Error closing progress log, loss of information possible: %s\n", av_err2str(ret));
    1787             :         }
    1788             :     }
    1789             : 
    1790        5074 :     if (is_last_report)
    1791        5068 :         print_final_stats(total_size);
    1792             : }
    1793             : 
    1794        5068 : static void flush_encoders(void)
    1795             : {
    1796             :     int i, ret;
    1797             : 
    1798       10268 :     for (i = 0; i < nb_output_streams; i++) {
    1799        5200 :         OutputStream   *ost = output_streams[i];
    1800        5200 :         AVCodecContext *enc = ost->enc_ctx;
    1801        5200 :         OutputFile      *of = output_files[ost->file_index];
    1802             : 
    1803        5200 :         if (!ost->encoding_needed)
    1804         174 :             continue;
    1805             : 
    1806        5026 :         if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
    1807         908 :             continue;
    1808             : #if FF_API_LAVF_FMT_RAWPICTURE
    1809        4118 :         if (enc->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
    1810           0 :             continue;
    1811             : #endif
    1812             : 
    1813        4118 :         if (enc->codec_type != AVMEDIA_TYPE_VIDEO && enc->codec_type != AVMEDIA_TYPE_AUDIO)
    1814          27 :             continue;
    1815             : 
    1816        4091 :         avcodec_send_frame(enc, NULL);
    1817             : 
    1818         227 :         for (;;) {
    1819        4318 :             const char *desc = NULL;
    1820             :             AVPacket pkt;
    1821             :             int pkt_size;
    1822             : 
    1823        4318 :             switch (enc->codec_type) {
    1824             :             case AVMEDIA_TYPE_AUDIO:
    1825         124 :                 desc   = "audio";
    1826         124 :                 break;
    1827             :             case AVMEDIA_TYPE_VIDEO:
    1828        4194 :                 desc   = "video";
    1829        4194 :                 break;
    1830             :             default:
    1831           0 :                 av_assert0(0);
    1832             :             }
    1833             : 
    1834        4318 :                 av_init_packet(&pkt);
    1835        4318 :                 pkt.data = NULL;
    1836        4318 :                 pkt.size = 0;
    1837             : 
    1838        4318 :                 update_benchmark(NULL);
    1839        4318 :                 ret = avcodec_receive_packet(enc, &pkt);
    1840        4318 :                 update_benchmark("flush_%s %d.%d", desc, ost->file_index, ost->index);
    1841        4318 :                 if (ret < 0 && ret != AVERROR_EOF) {
    1842           0 :                     av_log(NULL, AV_LOG_FATAL, "%s encoding failed: %s\n",
    1843             :                            desc,
    1844           0 :                            av_err2str(ret));
    1845           0 :                     exit_program(1);
    1846             :                 }
    1847        4318 :                 if (ost->logfile && enc->stats_out) {
    1848           0 :                     fprintf(ost->logfile, "%s", enc->stats_out);
    1849             :                 }
    1850        4318 :                 if (ret == AVERROR_EOF) {
    1851        4091 :                     break;
    1852             :                 }
    1853         227 :                 if (ost->finished & MUXER_FINISHED) {
    1854           0 :                     av_packet_unref(&pkt);
    1855           0 :                     continue;
    1856             :                 }
    1857         227 :                 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
    1858         227 :                 pkt_size = pkt.size;
    1859         227 :                 output_packet(of, &pkt, ost);
    1860         227 :                 if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO && vstats_filename) {
    1861           0 :                     do_video_stats(ost, pkt_size);
    1862             :                 }
    1863             :         }
    1864             :     }
    1865        5068 : }
    1866             : 
    1867             : /*
    1868             :  * Check whether a packet from ist should be written into ost at this time
    1869             :  */
    1870      388602 : static int check_output_constraints(InputStream *ist, OutputStream *ost)
    1871             : {
    1872      388602 :     OutputFile *of = output_files[ost->file_index];
    1873      388602 :     int ist_index  = input_files[ist->file_index]->ist_index + ist->st->index;
    1874             : 
    1875      388602 :     if (ost->source_index != ist_index)
    1876       15755 :         return 0;
    1877             : 
    1878      372847 :     if (ost->finished)
    1879          24 :         return 0;
    1880             : 
    1881      372823 :     if (of->start_time != AV_NOPTS_VALUE && ist->pts < of->start_time)
    1882           0 :         return 0;
    1883             : 
    1884      372823 :     return 1;
    1885             : }
    1886             : 
    1887       19927 : static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
    1888             : {
    1889       19927 :     OutputFile *of = output_files[ost->file_index];
    1890       19927 :     InputFile   *f = input_files [ist->file_index];
    1891       19927 :     int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
    1892       19927 :     int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
    1893             :     AVPicture pict;
    1894             :     AVPacket opkt;
    1895             : 
    1896       19927 :     av_init_packet(&opkt);
    1897             : 
    1898       19938 :     if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
    1899          11 :         !ost->copy_initial_nonkeyframes)
    1900          29 :         return;
    1901             : 
    1902       19916 :     if (!ost->frame_number && !ost->copy_prior_start) {
    1903           0 :         int64_t comp_start = start_time;
    1904           0 :         if (copy_ts && f->start_time != AV_NOPTS_VALUE)
    1905           0 :             comp_start = FFMAX(start_time, f->start_time + f->ts_offset);
    1906           0 :         if (pkt->pts == AV_NOPTS_VALUE ?
    1907           0 :             ist->pts < comp_start :
    1908           0 :             pkt->pts < av_rescale_q(comp_start, AV_TIME_BASE_Q, ist->st->time_base))
    1909           0 :             return;
    1910             :     }
    1911             : 
    1912       20332 :     if (of->recording_time != INT64_MAX &&
    1913         416 :         ist->pts >= of->recording_time + start_time) {
    1914           5 :         close_output_stream(ost);
    1915           5 :         return;
    1916             :     }
    1917             : 
    1918       19911 :     if (f->recording_time != INT64_MAX) {
    1919         148 :         start_time = f->ctx->start_time;
    1920         148 :         if (f->start_time != AV_NOPTS_VALUE && copy_ts)
    1921          74 :             start_time += f->start_time;
    1922         148 :         if (ist->pts >= f->recording_time + start_time) {
    1923           2 :             close_output_stream(ost);
    1924           2 :             return;
    1925             :         }
    1926             :     }
    1927             : 
    1928             :     /* force the input stream PTS */
    1929       19909 :     if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
    1930        3587 :         ost->sync_opts++;
    1931             : 
    1932       19909 :     if (pkt->pts != AV_NOPTS_VALUE)
    1933       19380 :         opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
    1934             :     else
    1935         529 :         opkt.pts = AV_NOPTS_VALUE;
    1936             : 
    1937       19909 :     if (pkt->dts == AV_NOPTS_VALUE)
    1938         285 :         opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
    1939             :     else
    1940       19624 :         opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
    1941       19909 :     opkt.dts -= ost_tb_start_time;
    1942             : 
    1943       19909 :     if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
    1944       15802 :         int duration = av_get_audio_frame_duration(ist->dec_ctx, pkt->size);
    1945       15802 :         if(!duration)
    1946        4776 :             duration = ist->dec_ctx->frame_size;
    1947       47406 :         opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
    1948       15802 :                                                (AVRational){1, ist->dec_ctx->sample_rate}, duration, &ist->filter_in_rescale_delta_last,
    1949       31604 :                                                ost->st->time_base) - ost_tb_start_time;
    1950             :     }
    1951             : 
    1952       19909 :     opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
    1953       19909 :     opkt.flags    = pkt->flags;
    1954             :     // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
    1955       19909 :     if (  ost->st->codecpar->codec_id != AV_CODEC_ID_H264
    1956       18370 :        && ost->st->codecpar->codec_id != AV_CODEC_ID_MPEG1VIDEO
    1957       18370 :        && ost->st->codecpar->codec_id != AV_CODEC_ID_MPEG2VIDEO
    1958       18276 :        && ost->st->codecpar->codec_id != AV_CODEC_ID_VC1
    1959       18276 :        ) {
    1960       36552 :         int ret = av_parser_change(ost->parser, ost->parser_avctx,
    1961             :                              &opkt.data, &opkt.size,
    1962       18276 :                              pkt->data, pkt->size,
    1963       18276 :                              pkt->flags & AV_PKT_FLAG_KEY);
    1964       18276 :         if (ret < 0) {
    1965           0 :             av_log(NULL, AV_LOG_FATAL, "av_parser_change failed: %s\n",
    1966           0 :                    av_err2str(ret));
    1967           0 :             exit_program(1);
    1968             :         }
    1969       18276 :         if (ret) {
    1970           0 :             opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
    1971           0 :             if (!opkt.buf)
    1972           0 :                 exit_program(1);
    1973             :         }
    1974             :     } else {
    1975        1633 :         opkt.data = pkt->data;
    1976        1633 :         opkt.size = pkt->size;
    1977             :     }
    1978       19909 :     av_copy_packet_side_data(&opkt, pkt);
    1979             : 
    1980             : #if FF_API_LAVF_FMT_RAWPICTURE
    1981       23496 :     if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
    1982        3631 :         ost->st->codecpar->codec_id == AV_CODEC_ID_RAWVIDEO &&
    1983          44 :         (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
    1984             :         /* store AVPicture in AVPacket, as expected by the output format */
    1985           0 :         int ret = avpicture_fill(&pict, opkt.data, ost->st->codecpar->format, ost->st->codecpar->width, ost->st->codecpar->height);
    1986           0 :         if (ret < 0) {
    1987           0 :             av_log(NULL, AV_LOG_FATAL, "avpicture_fill failed: %s\n",
    1988           0 :                    av_err2str(ret));
    1989           0 :             exit_program(1);
    1990             :         }
    1991           0 :         opkt.data = (uint8_t *)&pict;
    1992           0 :         opkt.size = sizeof(AVPicture);
    1993           0 :         opkt.flags |= AV_PKT_FLAG_KEY;
    1994             :     }
    1995             : #endif
    1996             : 
    1997       19909 :     output_packet(of, &opkt, ost);
    1998             : }
    1999             : 
    2000        1227 : int guess_input_channel_layout(InputStream *ist)
    2001             : {
    2002        1227 :     AVCodecContext *dec = ist->dec_ctx;
    2003             : 
    2004        1227 :     if (!dec->channel_layout) {
    2005             :         char layout_name[256];
    2006             : 
    2007         660 :         if (dec->channels > ist->guess_layout_max)
    2008           4 :             return 0;
    2009         658 :         dec->channel_layout = av_get_default_channel_layout(dec->channels);
    2010         658 :         if (!dec->channel_layout)
    2011           0 :             return 0;
    2012         658 :         av_get_channel_layout_string(layout_name, sizeof(layout_name),
    2013             :                                      dec->channels, dec->channel_layout);
    2014         658 :         av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
    2015         658 :                "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
    2016             :     }
    2017        1225 :     return 1;
    2018             : }
    2019             : 
    2020      729792 : static void check_decode_result(InputStream *ist, int *got_output, int ret)
    2021             : {
    2022      729792 :     if (*got_output || ret<0)
    2023      376682 :         decode_error_stat[ret<0] ++;
    2024             : 
    2025      729792 :     if (ret < 0 && exit_on_error)
    2026           0 :         exit_program(1);
    2027             : 
    2028      729792 :     if (exit_on_error && *got_output && ist) {
    2029           0 :         if (av_frame_get_decode_error_flags(ist->decoded_frame) || (ist->decoded_frame->flags & AV_FRAME_FLAG_CORRUPT)) {
    2030           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);
    2031           0 :             exit_program(1);
    2032             :         }
    2033             :     }
    2034      729792 : }
    2035             : 
    2036             : // This does not quite work like avcodec_decode_audio4/avcodec_decode_video2.
    2037             : // There is the following difference: if you got a frame, you must call
    2038             : // it again with pkt=NULL. pkt==NULL is treated differently from pkt.size==0
    2039             : // (pkt==NULL means get more output, pkt.size==0 is a flush/drain packet)
    2040      733941 : static int decode(AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *pkt)
    2041             : {
    2042             :     int ret;
    2043             : 
    2044      733941 :     *got_frame = 0;
    2045             : 
    2046      733941 :     if (pkt) {
    2047      358566 :         ret = avcodec_send_packet(avctx, pkt);
    2048             :         // In particular, we don't expect AVERROR(EAGAIN), because we read all
    2049             :         // decoded frames with avcodec_receive_frame() until done.
    2050      358566 :         if (ret < 0 && ret != AVERROR_EOF)
    2051         218 :             return ret;
    2052             :     }
    2053             : 
    2054      733723 :     ret = avcodec_receive_frame(avctx, frame);
    2055      733723 :     if (ret < 0 && ret != AVERROR(EAGAIN))
    2056        5002 :         return ret;
    2057      728721 :     if (ret >= 0)
    2058      375968 :         *got_frame = 1;
    2059             : 
    2060      728721 :     return 0;
    2061             : }
    2062             : 
    2063      375968 : static int send_frame_to_filters(InputStream *ist, AVFrame *decoded_frame)
    2064             : {
    2065             :     int i, ret;
    2066             :     AVFrame *f;
    2067             : 
    2068             :     av_assert1(ist->nb_filters > 0); /* ensure ret is initialized */
    2069      752324 :     for (i = 0; i < ist->nb_filters; i++) {
    2070      376356 :         if (i < ist->nb_filters - 1) {
    2071         388 :             f = ist->filter_frame;
    2072         388 :             ret = av_frame_ref(f, decoded_frame);
    2073         388 :             if (ret < 0)
    2074           0 :                 break;
    2075             :         } else
    2076      375968 :             f = decoded_frame;
    2077      376356 :         ret = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f,
    2078             :                                            AV_BUFFERSRC_FLAG_PUSH);
    2079      376356 :         if (ret == AVERROR_EOF)
    2080           0 :             ret = 0; /* ignore */
    2081      376356 :         if (ret < 0) {
    2082           0 :             av_log(NULL, AV_LOG_ERROR,
    2083           0 :                    "Failed to inject frame into filter network: %s\n", av_err2str(ret));
    2084           0 :             break;
    2085             :         }
    2086             :     }
    2087      375968 :     return ret;
    2088             : }
    2089             : 
    2090      539064 : static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
    2091             : {
    2092             :     AVFrame *decoded_frame;
    2093      539064 :     AVCodecContext *avctx = ist->dec_ctx;
    2094      539064 :     int i, ret, err = 0, resample_changed;
    2095             :     AVRational decoded_frame_tb;
    2096             : 
    2097      539064 :     if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
    2098           0 :         return AVERROR(ENOMEM);
    2099      539064 :     if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
    2100           0 :         return AVERROR(ENOMEM);
    2101      539064 :     decoded_frame = ist->decoded_frame;
    2102             : 
    2103      539064 :     update_benchmark(NULL);
    2104      539064 :     ret = decode(avctx, decoded_frame, got_output, pkt);
    2105      539064 :     update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
    2106             : 
    2107      539064 :     if (ret >= 0 && avctx->sample_rate <= 0) {
    2108           0 :         av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
    2109           0 :         ret = AVERROR_INVALIDDATA;
    2110             :     }
    2111             : 
    2112      539064 :     if (ret != AVERROR_EOF)
    2113      538069 :         check_decode_result(ist, got_output, ret);
    2114             : 
    2115      539064 :     if (!*got_output || ret < 0)
    2116      256641 :         return ret;
    2117             : 
    2118      282423 :     ist->samples_decoded += decoded_frame->nb_samples;
    2119      282423 :     ist->frames_decoded++;
    2120             : 
    2121             : #if 1
    2122             :     /* increment next_dts to use for the case where the input stream does not
    2123             :        have timestamps or there are multiple frames in the packet */
    2124      564846 :     ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
    2125      282423 :                      avctx->sample_rate;
    2126      564846 :     ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
    2127      282423 :                      avctx->sample_rate;
    2128             : #endif
    2129             : 
    2130      847254 :     resample_changed = ist->resample_sample_fmt     != decoded_frame->format         ||
    2131      564815 :                        ist->resample_channels       != avctx->channels               ||
    2132      847237 :                        ist->resample_channel_layout != decoded_frame->channel_layout ||
    2133      282407 :                        ist->resample_sample_rate    != decoded_frame->sample_rate;
    2134      282423 :     if (resample_changed) {
    2135             :         char layout1[64], layout2[64];
    2136             : 
    2137          16 :         if (!guess_input_channel_layout(ist)) {
    2138           0 :             av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
    2139             :                    "layout for Input Stream #%d.%d\n", ist->file_index,
    2140           0 :                    ist->st->index);
    2141           0 :             exit_program(1);
    2142             :         }
    2143          16 :         decoded_frame->channel_layout = avctx->channel_layout;
    2144             : 
    2145          16 :         av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
    2146             :                                      ist->resample_channel_layout);
    2147          16 :         av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
    2148             :                                      decoded_frame->channel_layout);
    2149             : 
    2150          64 :         av_log(NULL, AV_LOG_INFO,
    2151             :                "Input stream #%d:%d frame changed from rate:%d fmt:%s ch:%d chl:%s to rate:%d fmt:%s ch:%d chl:%s\n",
    2152          16 :                ist->file_index, ist->st->index,
    2153          16 :                ist->resample_sample_rate,  av_get_sample_fmt_name(ist->resample_sample_fmt),
    2154             :                ist->resample_channels, layout1,
    2155          16 :                decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
    2156             :                avctx->channels, layout2);
    2157             : 
    2158          16 :         ist->resample_sample_fmt     = decoded_frame->format;
    2159          16 :         ist->resample_sample_rate    = decoded_frame->sample_rate;
    2160          16 :         ist->resample_channel_layout = decoded_frame->channel_layout;
    2161          16 :         ist->resample_channels       = avctx->channels;
    2162             : 
    2163          32 :         for (i = 0; i < ist->nb_filters; i++) {
    2164          16 :             err = ifilter_parameters_from_frame(ist->filters[i], decoded_frame);
    2165          16 :             if (err < 0) {
    2166           0 :                 av_log(NULL, AV_LOG_ERROR,
    2167             :                        "Error reconfiguring input stream %d:%d filter %d\n",
    2168           0 :                        ist->file_index, ist->st->index, i);
    2169           0 :                 goto fail;
    2170             :             }
    2171             :         }
    2172             : 
    2173          32 :         for (i = 0; i < nb_filtergraphs; i++)
    2174          16 :             if (ist_in_filtergraph(filtergraphs[i], ist)) {
    2175          16 :                 FilterGraph *fg = filtergraphs[i];
    2176          16 :                 if (configure_filtergraph(fg) < 0) {
    2177           0 :                     av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
    2178           0 :                     exit_program(1);
    2179             :                 }
    2180             :             }
    2181             :     }
    2182             : 
    2183      282423 :     if (decoded_frame->pts != AV_NOPTS_VALUE) {
    2184      254431 :         decoded_frame_tb   = ist->st->time_base;
    2185       27992 :     } else if (pkt && pkt->pts != AV_NOPTS_VALUE) {
    2186           3 :         decoded_frame->pts = pkt->pts;
    2187           3 :         decoded_frame_tb   = ist->st->time_base;
    2188             :     }else {
    2189       27989 :         decoded_frame->pts = ist->dts;
    2190       27989 :         decoded_frame_tb   = AV_TIME_BASE_Q;
    2191             :     }
    2192      282423 :     if (decoded_frame->pts != AV_NOPTS_VALUE)
    2193      564846 :         decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
    2194      282423 :                                               (AVRational){1, avctx->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
    2195      282423 :                                               (AVRational){1, avctx->sample_rate});
    2196      282423 :     ist->nb_samples = decoded_frame->nb_samples;
    2197      282423 :     err = send_frame_to_filters(ist, decoded_frame);
    2198      282423 :     decoded_frame->pts = AV_NOPTS_VALUE;
    2199             : 
    2200             : fail:
    2201      282423 :     av_frame_unref(ist->filter_frame);
    2202      282423 :     av_frame_unref(decoded_frame);
    2203      282423 :     return err < 0 ? err : ret;
    2204             : }
    2205             : 
    2206      196422 : static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output, int eof)
    2207             : {
    2208             :     AVFrame *decoded_frame;
    2209      196422 :     int i, ret = 0, err = 0, resample_changed;
    2210             :     int64_t best_effort_timestamp;
    2211      196422 :     int64_t dts = AV_NOPTS_VALUE;
    2212             :     AVPacket avpkt;
    2213             : 
    2214             :     // With fate-indeo3-2, we're getting 0-sized packets before EOF for some
    2215             :     // reason. This seems like a semi-critical bug. Don't trigger EOF, and
    2216             :     // skip the packet.
    2217      196422 :     if (!eof && pkt && pkt->size == 0)
    2218        1545 :         return 0;
    2219             : 
    2220      194877 :     if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
    2221           0 :         return AVERROR(ENOMEM);
    2222      194877 :     if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
    2223           0 :         return AVERROR(ENOMEM);
    2224      194877 :     decoded_frame = ist->decoded_frame;
    2225      194877 :     if (ist->dts != AV_NOPTS_VALUE)
    2226      194464 :         dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
    2227      194877 :     if (pkt) {
    2228      101897 :         avpkt = *pkt;
    2229      101897 :         avpkt.dts = dts; // ffmpeg.c probably shouldn't do this
    2230             :     }
    2231             : 
    2232             :     // The old code used to set dts on the drain packet, which does not work
    2233             :     // with the new API anymore.
    2234      194877 :     if (eof) {
    2235        4567 :         void *new = av_realloc_array(ist->dts_buffer, ist->nb_dts_buffer + 1, sizeof(ist->dts_buffer[0]));
    2236        4567 :         if (!new)
    2237           0 :             return AVERROR(ENOMEM);
    2238        4567 :         ist->dts_buffer = new;
    2239        4567 :         ist->dts_buffer[ist->nb_dts_buffer++] = dts;
    2240             :     }
    2241             : 
    2242      194877 :     update_benchmark(NULL);
    2243      194877 :     ret = decode(ist->dec_ctx, decoded_frame, got_output, pkt ? &avpkt : NULL);
    2244      194877 :     update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
    2245             : 
    2246             :     // The following line may be required in some cases where there is no parser
    2247             :     // or the parser does not has_b_frames correctly
    2248      194877 :     if (ist->st->codecpar->video_delay < ist->dec_ctx->has_b_frames) {
    2249           2 :         if (ist->dec_ctx->codec_id == AV_CODEC_ID_H264) {
    2250           2 :             ist->st->codecpar->video_delay = ist->dec_ctx->has_b_frames;
    2251             :         } else
    2252           0 :             av_log(ist->dec_ctx, AV_LOG_WARNING,
    2253             :                    "video_delay is larger in decoder than demuxer %d > %d.\n"
    2254             :                    "If you want to help, upload a sample "
    2255             :                    "of this file to ftp://upload.ffmpeg.org/incoming/ "
    2256             :                    "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)",
    2257           0 :                    ist->dec_ctx->has_b_frames,
    2258           0 :                    ist->st->codecpar->video_delay);
    2259             :     }
    2260             : 
    2261      194877 :     if (ret != AVERROR_EOF)
    2262      190875 :         check_decode_result(ist, got_output, ret);
    2263             : 
    2264      194877 :     if (*got_output && ret >= 0) {
    2265      187087 :         if (ist->dec_ctx->width  != decoded_frame->width ||
    2266      187084 :             ist->dec_ctx->height != decoded_frame->height ||
    2267       93542 :             ist->dec_ctx->pix_fmt != decoded_frame->format) {
    2268           6 :             av_log(NULL, AV_LOG_DEBUG, "Frame parameters mismatch context %d,%d,%d != %d,%d,%d\n",
    2269             :                 decoded_frame->width,
    2270             :                 decoded_frame->height,
    2271             :                 decoded_frame->format,
    2272           3 :                 ist->dec_ctx->width,
    2273           3 :                 ist->dec_ctx->height,
    2274           3 :                 ist->dec_ctx->pix_fmt);
    2275             :         }
    2276             :     }
    2277             : 
    2278      194877 :     if (!*got_output || ret < 0)
    2279      101332 :         return ret;
    2280             : 
    2281       93545 :     if(ist->top_field_first>=0)
    2282           0 :         decoded_frame->top_field_first = ist->top_field_first;
    2283             : 
    2284       93545 :     ist->frames_decoded++;
    2285             : 
    2286       93545 :     if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
    2287           0 :         err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
    2288           0 :         if (err < 0)
    2289           0 :             goto fail;
    2290             :     }
    2291       93545 :     ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
    2292             : 
    2293       93545 :     best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
    2294             : 
    2295       93545 :     if (eof && best_effort_timestamp == AV_NOPTS_VALUE && ist->nb_dts_buffer > 0) {
    2296         519 :         best_effort_timestamp = ist->dts_buffer[0];
    2297             : 
    2298         519 :         for (i = 0; i < ist->nb_dts_buffer - 1; i++)
    2299           0 :             ist->dts_buffer[i] = ist->dts_buffer[i + 1];
    2300         519 :         ist->nb_dts_buffer--;
    2301             :     }
    2302             : 
    2303       93545 :     if(best_effort_timestamp != AV_NOPTS_VALUE) {
    2304       93545 :         int64_t ts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
    2305             : 
    2306       93545 :         if (ts != AV_NOPTS_VALUE)
    2307       93545 :             ist->next_pts = ist->pts = ts;
    2308             :     }
    2309             : 
    2310       93545 :     if (debug_ts) {
    2311           0 :         av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
    2312             :                "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",
    2313           0 :                ist->st->index, av_ts2str(decoded_frame->pts),
    2314           0 :                av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
    2315             :                best_effort_timestamp,
    2316           0 :                av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
    2317           0 :                decoded_frame->key_frame, decoded_frame->pict_type,
    2318           0 :                ist->st->time_base.num, ist->st->time_base.den);
    2319             :     }
    2320             : 
    2321       93545 :     if (ist->st->sample_aspect_ratio.num)
    2322        4228 :         decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
    2323             : 
    2324      280611 :     resample_changed = ist->resample_width   != decoded_frame->width  ||
    2325      187056 :                        ist->resample_height  != decoded_frame->height ||
    2326       93511 :                        ist->resample_pix_fmt != decoded_frame->format;
    2327       93545 :     if (resample_changed) {
    2328         108 :         av_log(NULL, AV_LOG_INFO,
    2329             :                "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
    2330          36 :                ist->file_index, ist->st->index,
    2331          36 :                ist->resample_width,  ist->resample_height,  av_get_pix_fmt_name(ist->resample_pix_fmt),
    2332          36 :                decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
    2333             : 
    2334          36 :         ist->resample_width   = decoded_frame->width;
    2335          36 :         ist->resample_height  = decoded_frame->height;
    2336          36 :         ist->resample_pix_fmt = decoded_frame->format;
    2337             : 
    2338          72 :         for (i = 0; i < ist->nb_filters; i++) {
    2339          36 :             err = ifilter_parameters_from_frame(ist->filters[i], decoded_frame);
    2340          36 :             if (err < 0) {
    2341           0 :                 av_log(NULL, AV_LOG_ERROR,
    2342             :                        "Error reconfiguring input stream %d:%d filter %d\n",
    2343           0 :                        ist->file_index, ist->st->index, i);
    2344           0 :                 goto fail;
    2345             :             }
    2346             :         }
    2347             : 
    2348          72 :         for (i = 0; i < nb_filtergraphs; i++) {
    2349          72 :             if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters &&
    2350          36 :                 configure_filtergraph(filtergraphs[i]) < 0) {
    2351           0 :                 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
    2352           0 :                 exit_program(1);
    2353             :             }
    2354             :         }
    2355             :     }
    2356             : 
    2357       93545 :     err = send_frame_to_filters(ist, decoded_frame);
    2358             : 
    2359             : fail:
    2360       93545 :     av_frame_unref(ist->filter_frame);
    2361       93545 :     av_frame_unref(decoded_frame);
    2362       93545 :     return err < 0 ? err : ret;
    2363             : }
    2364             : 
    2365         848 : static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
    2366             : {
    2367             :     AVSubtitle subtitle;
    2368         848 :     int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
    2369             :                                           &subtitle, got_output, pkt);
    2370             : 
    2371         848 :     check_decode_result(NULL, got_output, ret);
    2372             : 
    2373         848 :     if (ret < 0 || !*got_output) {
    2374         357 :         if (!pkt->size)
    2375          28 :             sub2video_flush(ist);
    2376         357 :         return ret;
    2377             :     }
    2378             : 
    2379         491 :     if (ist->fix_sub_duration) {
    2380           0 :         int end = 1;
    2381           0 :         if (ist->prev_sub.got_output) {
    2382           0 :             end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
    2383             :                              1000, AV_TIME_BASE);
    2384           0 :             if (end < ist->prev_sub.subtitle.end_display_time) {
    2385           0 :                 av_log(ist->dec_ctx, AV_LOG_DEBUG,
    2386             :                        "Subtitle duration reduced from %d to %d%s\n",
    2387             :                        ist->prev_sub.subtitle.end_display_time, end,
    2388             :                        end <= 0 ? ", dropping it" : "");
    2389           0 :                 ist->prev_sub.subtitle.end_display_time = end;
    2390             :             }
    2391             :         }
    2392           0 :         FFSWAP(int,        *got_output, ist->prev_sub.got_output);
    2393           0 :         FFSWAP(int,        ret,         ist->prev_sub.ret);
    2394           0 :         FFSWAP(AVSubtitle, subtitle,    ist->prev_sub.subtitle);
    2395           0 :         if (end <= 0)
    2396           0 :             goto out;
    2397             :     }
    2398             : 
    2399         491 :     if (!*got_output)
    2400           0 :         return ret;
    2401             : 
    2402         491 :     sub2video_update(ist, &subtitle);
    2403             : 
    2404         491 :     if (!subtitle.num_rects)
    2405           0 :         goto out;
    2406             : 
    2407         491 :     ist->frames_decoded++;
    2408             : 
    2409        1026 :     for (i = 0; i < nb_output_streams; i++) {
    2410         535 :         OutputStream *ost = output_streams[i];
    2411             : 
    2412         535 :         if (!check_output_constraints(ist, ost) || !ost->encoding_needed
    2413         490 :             || ost->enc->type != AVMEDIA_TYPE_SUBTITLE)
    2414          45 :             continue;
    2415             : 
    2416         490 :         do_subtitle_out(output_files[ost->file_index], ost, &subtitle);
    2417             :     }
    2418             : 
    2419             : out:
    2420         491 :     avsubtitle_free(&subtitle);
    2421         491 :     return ret;
    2422             : }
    2423             : 
    2424        5026 : static int send_filter_eof(InputStream *ist)
    2425             : {
    2426             :     int i, ret;
    2427       10027 :     for (i = 0; i < ist->nb_filters; i++) {
    2428        5001 :         ret = av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
    2429        5001 :         if (ret < 0)
    2430           0 :             return ret;
    2431             :     }
    2432        5026 :     return 0;
    2433             : }
    2434             : 
    2435             : /* pkt = NULL means EOF (needed to flush decoder buffers) */
    2436      380909 : static int process_input_packet(InputStream *ist, const AVPacket *pkt, int no_eof)
    2437             : {
    2438      380909 :     int ret = 0, i;
    2439      380909 :     int repeating = 0;
    2440      380909 :     int eof_reached = 0;
    2441             : 
    2442             :     AVPacket avpkt;
    2443      380909 :     if (!ist->saw_first_ts) {
    2444        5191 :         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;
    2445        5191 :         ist->pts = 0;
    2446        5191 :         if (pkt && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
    2447         135 :             ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
    2448         135 :             ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
    2449             :         }
    2450        5191 :         ist->saw_first_ts = 1;
    2451             :     }
    2452             : 
    2453      380909 :     if (ist->next_dts == AV_NOPTS_VALUE)
    2454        5604 :         ist->next_dts = ist->dts;
    2455      380909 :     if (ist->next_pts == AV_NOPTS_VALUE)
    2456        5191 :         ist->next_pts = ist->pts;
    2457             : 
    2458      380909 :     if (!pkt) {
    2459             :         /* EOF handling */
    2460        5619 :         av_init_packet(&avpkt);
    2461        5619 :         avpkt.data = NULL;
    2462        5619 :         avpkt.size = 0;
    2463             :     } else {
    2464      375290 :         avpkt = *pkt;
    2465             :     }
    2466             : 
    2467      380909 :     if (pkt && pkt->dts != AV_NOPTS_VALUE) {
    2468      344051 :         ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
    2469      344051 :         if (ist->dec_ctx->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
    2470      275050 :             ist->next_pts = ist->pts = ist->dts;
    2471             :     }
    2472             : 
    2473             :     // while we have more to decode or while the decoder did output something on EOF
    2474     1137684 :     while (ist->decoding_needed) {
    2475      736825 :         int duration = 0;
    2476      736825 :         int got_output = 0;
    2477             : 
    2478      736825 :         ist->pts = ist->next_pts;
    2479      736825 :         ist->dts = ist->next_dts;
    2480             : 
    2481      736825 :         switch (ist->dec_ctx->codec_type) {
    2482             :         case AVMEDIA_TYPE_AUDIO:
    2483      539064 :             ret = decode_audio    (ist, repeating ? NULL : &avpkt, &got_output);
    2484      539064 :             break;
    2485             :         case AVMEDIA_TYPE_VIDEO:
    2486      196422 :             ret = decode_video    (ist, repeating ? NULL : &avpkt, &got_output, !pkt);
    2487      196422 :             if (!repeating || !pkt || got_output) {
    2488      103442 :                 if (pkt && pkt->duration) {
    2489       96584 :                     duration = av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
    2490        6858 :                 } else if(ist->dec_ctx->framerate.num != 0 && ist->dec_ctx->framerate.den != 0) {
    2491        5696 :                     int ticks= av_stream_get_parser(ist->st) ? av_stream_get_parser(ist->st)->repeat_pict+1 : ist->dec_ctx->ticks_per_frame;
    2492       11392 :                     duration = ((int64_t)AV_TIME_BASE *
    2493       17088 :                                     ist->dec_ctx->framerate.den * ticks) /
    2494       11392 :                                     ist->dec_ctx->framerate.num / ist->dec_ctx->ticks_per_frame;
    2495             :                 }
    2496             : 
    2497      103442 :                 if(ist->dts != AV_NOPTS_VALUE && duration) {
    2498      102280 :                     ist->next_dts += duration;
    2499             :                 }else
    2500        1162 :                     ist->next_dts = AV_NOPTS_VALUE;
    2501             :             }
    2502             : 
    2503      196422 :             if (got_output)
    2504       93545 :                 ist->next_pts += duration; //FIXME the duration is not correct in some cases
    2505      196422 :             break;
    2506             :         case AVMEDIA_TYPE_SUBTITLE:
    2507        1339 :             if (repeating)
    2508         491 :                 break;
    2509         848 :             ret = transcode_subtitles(ist, &avpkt, &got_output);
    2510         848 :             if (!pkt && ret >= 0)
    2511          28 :                 ret = AVERROR_EOF;
    2512         848 :             break;
    2513             :         default:
    2514           0 :             return -1;
    2515             :         }
    2516             : 
    2517      736825 :         if (ret == AVERROR_EOF) {
    2518        5025 :             eof_reached = 1;
    2519      365984 :             break;
    2520             :         }
    2521             : 
    2522      731800 :         if (ret < 0) {
    2523         446 :             av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
    2524         446 :                    ist->file_index, ist->st->index, av_err2str(ret));
    2525         223 :             if (exit_on_error)
    2526           0 :                 exit_program(1);
    2527             :             // Decoding might not terminate if we're draining the decoder, and
    2528             :             // the decoder keeps returning an error.
    2529             :             // This should probably be considered a libavcodec issue.
    2530             :             // Sample: fate-vsynth1-dnxhd-720p-hr-lb
    2531         223 :             if (!pkt)
    2532           1 :                 eof_reached = 1;
    2533         223 :             break;
    2534             :         }
    2535             : 
    2536      731577 :         if (!got_output)
    2537      355118 :             break;
    2538             : 
    2539             :         // During draining, we might get multiple output frames in this loop.
    2540             :         // ffmpeg.c does not drain the filter chain on configuration changes,
    2541             :         // which means if we send multiple frames at once to the filters, and
    2542             :         // one of those frames changes configuration, the buffered frames will
    2543             :         // be lost. This can upset certain FATE tests.
    2544             :         // Decode only 1 frame per call on EOF to appease these FATE tests.
    2545             :         // The ideal solution would be to rewrite decoding to use the new
    2546             :         // decoding API in a better way.
    2547      376459 :         if (!pkt)
    2548         593 :             break;
    2549             : 
    2550      375866 :         repeating = 1;
    2551             :     }
    2552             : 
    2553             :     /* after flushing, send an EOF on all the filter inputs attached to the stream */
    2554             :     /* except when looping we need to flush but not to send an EOF */
    2555      380909 :     if (!pkt && ist->decoding_needed && eof_reached && !no_eof) {
    2556        5026 :         int ret = send_filter_eof(ist);
    2557        5026 :         if (ret < 0) {
    2558           0 :             av_log(NULL, AV_LOG_FATAL, "Error marking filters as finished\n");
    2559           0 :             exit_program(1);
    2560             :         }
    2561             :     }
    2562             : 
    2563             :     /* handle stream copy */
    2564      380909 :     if (!ist->decoding_needed) {
    2565       19950 :         ist->dts = ist->next_dts;
    2566       19950 :         switch (ist->dec_ctx->codec_type) {
    2567             :         case AVMEDIA_TYPE_AUDIO:
    2568       31660 :             ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
    2569       15830 :                              ist->dec_ctx->sample_rate;
    2570       15830 :             break;
    2571             :         case AVMEDIA_TYPE_VIDEO:
    2572        3600 :             if (ist->framerate.num) {
    2573             :                 // TODO: Remove work-around for c99-to-c89 issue 7
    2574          79 :                 AVRational time_base_q = AV_TIME_BASE_Q;
    2575          79 :                 int64_t next_dts = av_rescale_q(ist->next_dts, time_base_q, av_inv_q(ist->framerate));
    2576          79 :                 ist->next_dts = av_rescale_q(next_dts + 1, av_inv_q(ist->framerate), time_base_q);
    2577        3521 :             } else if (pkt->duration) {
    2578        3294 :                 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
    2579         227 :             } else if(ist->dec_ctx->framerate.num != 0) {
    2580         119 :                 int ticks= av_stream_get_parser(ist->st) ? av_stream_get_parser(ist->st)->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
    2581         357 :                 ist->next_dts += ((int64_t)AV_TIME_BASE *
    2582         357 :                                   ist->dec_ctx->framerate.den * ticks) /
    2583         238 :                                   ist->dec_ctx->framerate.num / ist->dec_ctx->ticks_per_frame;
    2584             :             }
    2585        3600 :             break;
    2586             :         }
    2587       19950 :         ist->pts = ist->dts;
    2588       19950 :         ist->next_pts = ist->next_dts;
    2589             :     }
    2590      768976 :     for (i = 0; pkt && i < nb_output_streams; i++) {
    2591      388067 :         OutputStream *ost = output_streams[i];
    2592             : 
    2593      388067 :         if (!check_output_constraints(ist, ost) || ost->encoding_needed)
    2594      368140 :             continue;
    2595             : 
    2596       19927 :         do_streamcopy(ist, ost, pkt);
    2597             :     }
    2598             : 
    2599      380909 :     return !eof_reached;
    2600             : }
    2601             : 
    2602           0 : static void print_sdp(void)
    2603             : {
    2604             :     char sdp[16384];
    2605             :     int i;
    2606             :     int j;
    2607             :     AVIOContext *sdp_pb;
    2608             :     AVFormatContext **avc;
    2609             : 
    2610           0 :     for (i = 0; i < nb_output_files; i++) {
    2611           0 :         if (!output_files[i]->header_written)
    2612           0 :             return;
    2613             :     }
    2614             : 
    2615           0 :     avc = av_malloc_array(nb_output_files, sizeof(*avc));
    2616           0 :     if (!avc)
    2617           0 :         exit_program(1);
    2618           0 :     for (i = 0, j = 0; i < nb_output_files; i++) {
    2619           0 :         if (!strcmp(output_files[i]->ctx->oformat->name, "rtp")) {
    2620           0 :             avc[j] = output_files[i]->ctx;
    2621           0 :             j++;
    2622             :         }
    2623             :     }
    2624             : 
    2625           0 :     if (!j)
    2626           0 :         goto fail;
    2627             : 
    2628           0 :     av_sdp_create(avc, j, sdp, sizeof(sdp));
    2629             : 
    2630           0 :     if (!sdp_filename) {
    2631           0 :         printf("SDP:\n%s\n", sdp);
    2632           0 :         fflush(stdout);
    2633             :     } else {
    2634           0 :         if (avio_open2(&sdp_pb, sdp_filename, AVIO_FLAG_WRITE, &int_cb, NULL) < 0) {
    2635           0 :             av_log(NULL, AV_LOG_ERROR, "Failed to open sdp file '%s'\n", sdp_filename);
    2636             :         } else {
    2637           0 :             avio_printf(sdp_pb, "SDP:\n%s", sdp);
    2638           0 :             avio_closep(&sdp_pb);
    2639           0 :             av_freep(&sdp_filename);
    2640             :         }
    2641             :     }
    2642             : 
    2643             : fail:
    2644           0 :     av_freep(&avc);
    2645             : }
    2646             : 
    2647        1370 : static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
    2648             : {
    2649             :     int i;
    2650        2465 :     for (i = 0; hwaccels[i].name; i++)
    2651        2343 :         if (hwaccels[i].pix_fmt == pix_fmt)
    2652        1248 :             return &hwaccels[i];
    2653         122 :     return NULL;
    2654             : }
    2655             : 
    2656         822 : static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
    2657             : {
    2658         822 :     InputStream *ist = s->opaque;
    2659             :     const enum AVPixelFormat *p;
    2660             :     int ret;
    2661             : 
    2662        2192 :     for (p = pix_fmts; *p != -1; p++) {
    2663        2192 :         const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
    2664             :         const HWAccel *hwaccel;
    2665             : 
    2666        2192 :         if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
    2667         822 :             break;
    2668             : 
    2669        1370 :         hwaccel = get_hwaccel(*p);
    2670        2618 :         if (!hwaccel ||
    2671        2496 :             (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
    2672        2496 :             (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
    2673        1370 :             continue;
    2674             : 
    2675           0 :         ret = hwaccel->init(s);
    2676           0 :         if (ret < 0) {
    2677           0 :             if (ist->hwaccel_id == hwaccel->id) {
    2678           0 :                 av_log(NULL, AV_LOG_FATAL,
    2679             :                        "%s hwaccel requested for input stream #%d:%d, "
    2680             :                        "but cannot be initialized.\n", hwaccel->name,
    2681           0 :                        ist->file_index, ist->st->index);
    2682           0 :                 return AV_PIX_FMT_NONE;
    2683             :             }
    2684           0 :             continue;
    2685             :         }
    2686             : 
    2687           0 :         if (ist->hw_frames_ctx) {
    2688           0 :             s->hw_frames_ctx = av_buffer_ref(ist->hw_frames_ctx);
    2689           0 :             if (!s->hw_frames_ctx)
    2690           0 :                 return AV_PIX_FMT_NONE;
    2691             :         }
    2692             : 
    2693           0 :         ist->active_hwaccel_id = hwaccel->id;
    2694           0 :         ist->hwaccel_pix_fmt   = *p;
    2695           0 :         break;
    2696             :     }
    2697             : 
    2698         822 :     return *p;
    2699             : }
    2700             : 
    2701      352284 : static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
    2702             : {
    2703      352284 :     InputStream *ist = s->opaque;
    2704             : 
    2705      352284 :     if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
    2706           0 :         return ist->hwaccel_get_buffer(s, frame, flags);
    2707             : 
    2708      352284 :     return avcodec_default_get_buffer2(s, frame, flags);
    2709             : }
    2710             : 
    2711        5426 : static int init_input_stream(int ist_index, char *error, int error_len)
    2712             : {
    2713             :     int i, ret;
    2714        5426 :     InputStream *ist = input_streams[ist_index];
    2715             : 
    2716       10437 :     for (i = 0; i < ist->nb_filters; i++) {
    2717        5011 :         ret = ifilter_parameters_from_decoder(ist->filters[i], ist->dec_ctx);
    2718        5011 :         if (ret < 0) {
    2719           0 :             av_log(NULL, AV_LOG_FATAL, "Error initializing filter input\n");
    2720           0 :             return ret;
    2721             :         }
    2722             :     }
    2723             : 
    2724        5426 :     if (ist->decoding_needed) {
    2725        5036 :         AVCodec *codec = ist->dec;
    2726        5036 :         if (!codec) {
    2727           0 :             snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
    2728           0 :                     avcodec_get_name(ist->dec_ctx->codec_id), ist->file_index, ist->st->index);
    2729           0 :             return AVERROR(EINVAL);
    2730             :         }
    2731             : 
    2732        5036 :         ist->dec_ctx->opaque                = ist;
    2733        5036 :         ist->dec_ctx->get_format            = get_format;
    2734        5036 :         ist->dec_ctx->get_buffer2           = get_buffer;
    2735        5036 :         ist->dec_ctx->thread_safe_callbacks = 1;
    2736             : 
    2737        5036 :         av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
    2738        5036 :         if (ist->dec_ctx->codec_id == AV_CODEC_ID_DVB_SUBTITLE &&
    2739           0 :            (ist->decoding_needed & DECODING_FOR_OST)) {
    2740           0 :             av_dict_set(&ist->decoder_opts, "compute_edt", "1", AV_DICT_DONT_OVERWRITE);
    2741           0 :             if (ist->decoding_needed & DECODING_FOR_FILTER)
    2742           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");
    2743             :         }
    2744             : 
    2745        5036 :         av_dict_set(&ist->decoder_opts, "sub_text_format", "ass", AV_DICT_DONT_OVERWRITE);
    2746             : 
    2747             :         /* Useful for subtitles retiming by lavf (FIXME), skipping samples in
    2748             :          * audio, and video decoders such as cuvid or mediacodec */
    2749        5036 :         av_codec_set_pkt_timebase(ist->dec_ctx, ist->st->time_base);
    2750             : 
    2751        5036 :         if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
    2752          35 :             av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
    2753        5036 :         if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
    2754           0 :             if (ret == AVERROR_EXPERIMENTAL)
    2755           0 :                 abort_codec_experimental(codec, 0);
    2756             : 
    2757           0 :             snprintf(error, error_len,
    2758             :                      "Error while opening decoder for input stream "
    2759             :                      "#%d:%d : %s",
    2760           0 :                      ist->file_index, ist->st->index, av_err2str(ret));
    2761           0 :             return ret;
    2762             :         }
    2763        5036 :         assert_avoptions(ist->decoder_opts);
    2764             :     }
    2765             : 
    2766        5426 :     ist->next_pts = AV_NOPTS_VALUE;
    2767        5426 :     ist->next_dts = AV_NOPTS_VALUE;
    2768             : 
    2769        5426 :     return 0;
    2770             : }
    2771             : 
    2772       10225 : static InputStream *get_input_stream(OutputStream *ost)
    2773             : {
    2774       10225 :     if (ost->source_index >= 0)
    2775       10169 :         return input_streams[ost->source_index];
    2776          56 :     return NULL;
    2777             : }
    2778             : 
    2779           1 : static int compare_int64(const void *a, const void *b)
    2780             : {
    2781           1 :     return FFDIFFSIGN(*(const int64_t *)a, *(const int64_t *)b);
    2782             : }
    2783             : 
    2784             : /* open the muxer when all the streams are initialized */
    2785        5201 : static int check_init_output_file(OutputFile *of, int file_index)
    2786             : {
    2787             :     int ret, i;
    2788             : 
    2789       10546 :     for (i = 0; i < of->ctx->nb_streams; i++) {
    2790        5477 :         OutputStream *ost = output_streams[of->ost_index + i];
    2791        5477 :         if (!ost->initialized)
    2792         132 :             return 0;
    2793             :     }
    2794             : 
    2795        5069 :     of->ctx->interrupt_callback = int_cb;
    2796             : 
    2797        5069 :     ret = avformat_write_header(of->ctx, &of->opts);
    2798        5069 :     if (ret < 0) {
    2799           0 :         av_log(NULL, AV_LOG_ERROR,
    2800             :                "Could not write header for output file #%d "
    2801             :                "(incorrect codec parameters ?): %s\n",
    2802           0 :                file_index, av_err2str(ret));
    2803           0 :         return ret;
    2804             :     }
    2805             :     //assert_avoptions(of->opts);
    2806        5069 :     of->header_written = 1;
    2807             : 
    2808        5069 :     av_dump_format(of->ctx, file_index, of->ctx->filename, 1);
    2809             : 
    2810        5069 :     if (sdp_filename || want_sdp)
    2811           0 :         print_sdp();
    2812             : 
    2813             :     /* flush the muxing queues */
    2814       10269 :     for (i = 0; i < of->ctx->nb_streams; i++) {
    2815        5200 :         OutputStream *ost = output_streams[of->ost_index + i];
    2816             : 
    2817       10400 :         while (av_fifo_size(ost->muxing_queue)) {
    2818             :             AVPacket pkt;
    2819           0 :             av_fifo_generic_read(ost->muxing_queue, &pkt, sizeof(pkt), NULL);
    2820           0 :             write_packet(of, &pkt, ost);
    2821             :         }
    2822             :     }
    2823             : 
    2824        5069 :     return 0;
    2825             : }
    2826             : 
    2827        5200 : static int init_output_bsfs(OutputStream *ost)
    2828             : {
    2829             :     AVBSFContext *ctx;
    2830             :     int i, ret;
    2831             : 
    2832        5200 :     if (!ost->nb_bitstream_filters)
    2833        5193 :         return 0;
    2834             : 
    2835          14 :     for (i = 0; i < ost->nb_bitstream_filters; i++) {
    2836           7 :         ctx = ost->bsf_ctx[i];
    2837             : 
    2838          14 :         ret = avcodec_parameters_copy(ctx->par_in,
    2839           7 :                                       i ? ost->bsf_ctx[i - 1]->par_out : ost->st->codecpar);
    2840           7 :         if (ret < 0)
    2841           0 :             return ret;
    2842             : 
    2843           7 :         ctx->time_base_in = i ? ost->bsf_ctx[i - 1]->time_base_out : ost->st->time_base;
    2844             : 
    2845           7 :         ret = av_bsf_init(ctx);
    2846           7 :         if (ret < 0) {
    2847           0 :             av_log(NULL, AV_LOG_ERROR, "Error initializing bitstream filter: %s\n",
    2848           0 :                    ost->bsf_ctx[i]->filter->name);
    2849           0 :             return ret;
    2850             :         }
    2851             :     }
    2852             : 
    2853           7 :     ctx = ost->bsf_ctx[ost->nb_bitstream_filters - 1];
    2854           7 :     ret = avcodec_parameters_copy(ost->st->codecpar, ctx->par_out);
    2855           7 :     if (ret < 0)
    2856           0 :         return ret;
    2857             : 
    2858           7 :     ost->st->time_base = ctx->time_base_out;
    2859             : 
    2860           7 :     return 0;
    2861             : }
    2862             : 
    2863         173 : static int init_output_stream_streamcopy(OutputStream *ost)
    2864             : {
    2865         173 :     OutputFile *of = output_files[ost->file_index];
    2866         173 :     InputStream *ist = get_input_stream(ost);
    2867         173 :     AVCodecParameters *par_dst = ost->st->codecpar;
    2868         173 :     AVCodecParameters *par_src = ost->ref_par;
    2869             :     AVRational sar;
    2870             :     int i, ret;
    2871         173 :     uint32_t codec_tag = par_dst->codec_tag;
    2872             : 
    2873         173 :     av_assert0(ist && !ost->filter);
    2874             : 
    2875         173 :     ret = avcodec_parameters_to_context(ost->enc_ctx, ist->st->codecpar);
    2876         173 :     if (ret >= 0)
    2877         173 :         ret = av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts);
    2878         173 :     if (ret < 0) {
    2879           0 :         av_log(NULL, AV_LOG_FATAL,
    2880             :                "Error setting up codec context options.\n");
    2881           0 :         return ret;
    2882             :     }
    2883         173 :     avcodec_parameters_from_context(par_src, ost->enc_ctx);
    2884             : 
    2885         173 :     if (!codec_tag) {
    2886             :         unsigned int codec_tag_tmp;
    2887         197 :         if (!of->ctx->oformat->codec_tag ||
    2888          37 :             av_codec_get_id (of->ctx->oformat->codec_tag, par_src->codec_tag) == par_src->codec_id ||
    2889          13 :             !av_codec_get_tag2(of->ctx->oformat->codec_tag, par_src->codec_id, &codec_tag_tmp))
    2890         163 :             codec_tag = par_src->codec_tag;
    2891             :     }
    2892             : 
    2893         173 :     ret = avcodec_parameters_copy(par_dst, par_src);
    2894         173 :     if (ret < 0)
    2895           0 :         return ret;
    2896             : 
    2897         173 :     par_dst->codec_tag = codec_tag;
    2898             : 
    2899         173 :     if (!ost->frame_rate.num)
    2900         173 :         ost->frame_rate = ist->framerate;
    2901         173 :     ost->st->avg_frame_rate = ost->frame_rate;
    2902             : 
    2903         173 :     ret = avformat_transfer_internal_stream_timing_info(of->ctx->oformat, ost->st, ist->st, copy_tb);
    2904         173 :     if (ret < 0)
    2905           0 :         return ret;
    2906             : 
    2907             :     // copy timebase while removing common factors
    2908         173 :     if (ost->st->time_base.num <= 0 || ost->st->time_base.den <= 0)
    2909         173 :         ost->st->time_base = av_add_q(av_stream_get_codec_timebase(ost->st), (AVRational){0, 1});
    2910             : 
    2911             :     // copy estimated duration as a hint to the muxer
    2912         173 :     if (ost->st->duration <= 0 && ist->st->duration > 0)
    2913         119 :         ost->st->duration = av_rescale_q(ist->st->duration, ist->st->time_base, ost->st->time_base);
    2914             : 
    2915             :     // copy disposition
    2916         173 :     ost->st->disposition = ist->st->disposition;
    2917             : 
    2918         173 :     if (ist->st->nb_side_data) {
    2919           3 :         ost->st->side_data = av_realloc_array(NULL, ist->st->nb_side_data,
    2920             :                                               sizeof(*ist->st->side_data));
    2921           3 :         if (!ost->st->side_data)
    2922           0 :             return AVERROR(ENOMEM);
    2923             : 
    2924           3 :         ost->st->nb_side_data = 0;
    2925           6 :         for (i = 0; i < ist->st->nb_side_data; i++) {
    2926           3 :             const AVPacketSideData *sd_src = &ist->st->side_data[i];
    2927           3 :             AVPacketSideData *sd_dst = &ost->st->side_data[ost->st->nb_side_data];
    2928             : 
    2929           3 :             if (ost->rotate_overridden && sd_src->type == AV_PKT_DATA_DISPLAYMATRIX)
    2930           1 :                 continue;
    2931             : 
    2932           2 :             sd_dst->data = av_malloc(sd_src->size);
    2933           2 :             if (!sd_dst->data)
    2934           0 :                 return AVERROR(ENOMEM);
    2935           2 :             memcpy(sd_dst->data, sd_src->data, sd_src->size);
    2936           2 :             sd_dst->size = sd_src->size;
    2937           2 :             sd_dst->type = sd_src->type;
    2938           2 :             ost->st->nb_side_data++;
    2939             :         }
    2940             :     }
    2941             : 
    2942         173 :     ost->parser = av_parser_init(par_dst->codec_id);
    2943         173 :     ost->parser_avctx = avcodec_alloc_context3(NULL);
    2944         173 :     if (!ost->parser_avctx)
    2945           0 :         return AVERROR(ENOMEM);
    2946             : 
    2947         173 :     switch (par_dst->codec_type) {
    2948             :     case AVMEDIA_TYPE_AUDIO:
    2949          82 :         if (audio_volume != 256) {
    2950           0 :             av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
    2951           0 :             exit_program(1);
    2952             :         }
    2953          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)
    2954           0 :             par_dst->block_align= 0;
    2955          82 :         if(par_dst->codec_id == AV_CODEC_ID_AC3)
    2956           2 :             par_dst->block_align= 0;
    2957          82 :         break;
    2958             :     case AVMEDIA_TYPE_VIDEO:
    2959          76 :         if (ost->frame_aspect_ratio.num) { // overridden by the -aspect cli option
    2960           0 :             sar =
    2961             :                 av_mul_q(ost->frame_aspect_ratio,
    2962           0 :                          (AVRational){ par_dst->height, par_dst->width });
    2963           0 :             av_log(NULL, AV_LOG_WARNING, "Overriding aspect ratio "
    2964             :                    "with stream copy may produce invalid files\n");
    2965             :             }
    2966          76 :         else if (ist->st->sample_aspect_ratio.num)
    2967          26 :             sar = ist->st->sample_aspect_ratio;
    2968             :         else
    2969          50 :             sar = par_src->sample_aspect_ratio;
    2970          76 :         ost->st->sample_aspect_ratio = par_dst->sample_aspect_ratio = sar;
    2971          76 :         ost->st->avg_frame_rate = ist->st->avg_frame_rate;
    2972          76 :         ost->st->r_frame_rate = ist->st->r_frame_rate;
    2973          76 :         break;
    2974             :     }
    2975             : 
    2976         173 :     return 0;
    2977             : }
    2978             : 
    2979        5026 : static void set_encoder_id(OutputFile *of, OutputStream *ost)
    2980             : {
    2981             :     AVDictionaryEntry *e;
    2982             : 
    2983             :     uint8_t *encoder_string;
    2984             :     int encoder_string_len;
    2985        5026 :     int format_flags = 0;
    2986        5026 :     int codec_flags = 0;
    2987             : 
    2988        5026 :     if (av_dict_get(ost->st->metadata, "encoder",  NULL, 0))
    2989           0 :         return;
    2990             : 
    2991        5026 :     e = av_dict_get(of->opts, "fflags", NULL, 0);
    2992        5026 :     if (e) {
    2993        4294 :         const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
    2994        4294 :         if (!o)
    2995           0 :             return;
    2996        4294 :         av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
    2997             :     }
    2998        5026 :     e = av_dict_get(ost->encoder_opts, "flags", NULL, 0);
    2999        5026 :     if (e) {
    3000        4254 :         const AVOption *o = av_opt_find(ost->enc_ctx, "flags", NULL, 0, 0);
    3001        4254 :         if (!o)
    3002           0 :             return;
    3003        4254 :         av_opt_eval_flags(ost->enc_ctx, o, e->value, &codec_flags);
    3004             :     }
    3005             : 
    3006        5026 :     encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
    3007        5026 :     encoder_string     = av_mallocz(encoder_string_len);
    3008        5026 :     if (!encoder_string)
    3009           0 :         exit_program(1);
    3010             : 
    3011        5026 :     if (!(format_flags & AVFMT_FLAG_BITEXACT) && !(codec_flags & AV_CODEC_FLAG_BITEXACT))
    3012         724 :         av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
    3013             :     else
    3014        4302 :         av_strlcpy(encoder_string, "Lavc ", encoder_string_len);
    3015        5026 :     av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
    3016        5026 :     av_dict_set(&ost->st->metadata, "encoder",  encoder_string,
    3017             :                 AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
    3018             : }
    3019             : 
    3020           1 : static void parse_forced_key_frames(char *kf, OutputStream *ost,
    3021             :                                     AVCodecContext *avctx)
    3022             : {
    3023             :     char *p;
    3024           1 :     int n = 1, i, size, index = 0;
    3025             :     int64_t t, *pts;
    3026             : 
    3027          14 :     for (p = kf; *p; p++)
    3028          13 :         if (*p == ',')
    3029           1 :             n++;
    3030           1 :     size = n;
    3031           1 :     pts = av_malloc_array(size, sizeof(*pts));
    3032           1 :     if (!pts) {
    3033           0 :         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
    3034           0 :         exit_program(1);
    3035             :     }
    3036             : 
    3037           1 :     p = kf;
    3038           3 :     for (i = 0; i < n; i++) {
    3039           2 :         char *next = strchr(p, ',');
    3040             : 
    3041           2 :         if (next)
    3042           1 :             *next++ = 0;
    3043             : 
    3044           2 :         if (!memcmp(p, "chapters", 8)) {
    3045             : 
    3046           0 :             AVFormatContext *avf = output_files[ost->file_index]->ctx;
    3047             :             int j;
    3048             : 
    3049           0 :             if (avf->nb_chapters > INT_MAX - size ||
    3050           0 :                 !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
    3051             :                                      sizeof(*pts)))) {
    3052           0 :                 av_log(NULL, AV_LOG_FATAL,
    3053             :                        "Could not allocate forced key frames array.\n");
    3054           0 :                 exit_program(1);
    3055             :             }
    3056           0 :             t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
    3057           0 :             t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
    3058             : 
    3059           0 :             for (j = 0; j < avf->nb_chapters; j++) {
    3060           0 :                 AVChapter *c = avf->chapters[j];
    3061             :                 av_assert1(index < size);
    3062           0 :                 pts[index++] = av_rescale_q(c->start, c->time_base,
    3063           0 :                                             avctx->time_base) + t;
    3064             :             }
    3065             : 
    3066             :         } else {
    3067             : 
    3068           2 :             t = parse_time_or_die("force_key_frames", p, 1);
    3069             :             av_assert1(index < size);
    3070           2 :             pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
    3071             : 
    3072             :         }
    3073             : 
    3074           2 :         p = next;
    3075             :     }
    3076             : 
    3077           1 :     av_assert0(index == size);
    3078           1 :     qsort(pts, size, sizeof(*pts), compare_int64);
    3079           1 :     ost->forced_kf_count = size;
    3080           1 :     ost->forced_kf_pts   = pts;
    3081           1 : }
    3082             : 
    3083        5026 : static int init_output_stream_encode(OutputStream *ost)
    3084             : {
    3085        5026 :     InputStream *ist = get_input_stream(ost);
    3086        5026 :     AVCodecContext *enc_ctx = ost->enc_ctx;
    3087        5026 :     AVCodecContext *dec_ctx = NULL;
    3088        5026 :     AVFormatContext *oc = output_files[ost->file_index]->ctx;
    3089             :     int j, ret;
    3090             : 
    3091        5026 :     set_encoder_id(output_files[ost->file_index], ost);
    3092             : 
    3093        5026 :     if (ist) {
    3094        4998 :         ost->st->disposition          = ist->st->disposition;
    3095             : 
    3096        4998 :         dec_ctx = ist->dec_ctx;
    3097             : 
    3098        4998 :         enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
    3099             :     } else {
    3100          60 :         for (j = 0; j < oc->nb_streams; j++) {
    3101          32 :             AVStream *st = oc->streams[j];
    3102          32 :             if (st != ost->st && st->codecpar->codec_type == ost->st->codecpar->codec_type)
    3103           0 :                 break;
    3104             :         }
    3105          28 :         if (j == oc->nb_streams)
    3106          49 :             if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO ||
    3107          21 :                 ost->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
    3108          28 :                 ost->st->disposition = AV_DISPOSITION_DEFAULT;
    3109             :     }
    3110             : 
    3111        6046 :     if ((enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
    3112        6019 :          enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO) &&
    3113        4999 :          filtergraph_is_simple(ost->filter->graph)) {
    3114        4955 :             FilterGraph *fg = ost->filter->graph;
    3115             : 
    3116        4955 :             if (configure_filtergraph(fg)) {
    3117           0 :                 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
    3118           0 :                 exit_program(1);
    3119             :             }
    3120             :     }
    3121             : 
    3122        5026 :     if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
    3123        4006 :         if (!ost->frame_rate.num)
    3124        3989 :             ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
    3125        4006 :         if (ist && !ost->frame_rate.num)
    3126           0 :             ost->frame_rate = ist->framerate;
    3127        4006 :         if (ist && !ost->frame_rate.num)
    3128           0 :             ost->frame_rate = ist->st->r_frame_rate;
    3129        4006 :         if (ist && !ost->frame_rate.num) {
    3130           0 :             ost->frame_rate = (AVRational){25, 1};
    3131           0 :             av_log(NULL, AV_LOG_WARNING,
    3132             :                    "No information "
    3133             :                    "about the input framerate is available. Falling "
    3134             :                    "back to a default value of 25fps for output stream #%d:%d. Use the -r option "
    3135             :                    "if you want a different framerate.\n",
    3136             :                    ost->file_index, ost->index);
    3137             :         }
    3138             : //      ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
    3139        4006 :         if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
    3140          49 :             int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
    3141          49 :             ost->frame_rate = ost->enc->supported_framerates[idx];
    3142             :         }
    3143             :         // reduce frame rate for mpeg4 to be within the spec limits
    3144        4006 :         if (enc_ctx->codec_id == AV_CODEC_ID_MPEG4) {
    3145         116 :             av_reduce(&ost->frame_rate.num, &ost->frame_rate.den,
    3146         116 :                       ost->frame_rate.num, ost->frame_rate.den, 65535);
    3147             :         }
    3148             :     }
    3149             : 
    3150        5026 :     switch (enc_ctx->codec_type) {
    3151             :     case AVMEDIA_TYPE_AUDIO:
    3152         993 :         enc_ctx->sample_fmt     = av_buffersink_get_format(ost->filter->filter);
    3153         993 :         if (dec_ctx)
    3154         986 :             enc_ctx->bits_per_raw_sample = FFMIN(dec_ctx->bits_per_raw_sample,
    3155             :                                                  av_get_bytes_per_sample(enc_ctx->sample_fmt) << 3);
    3156         993 :         enc_ctx->sample_rate    = av_buffersink_get_sample_rate(ost->filter->filter);
    3157         993 :         enc_ctx->channel_layout = av_buffersink_get_channel_layout(ost->filter->filter);
    3158         993 :         enc_ctx->channels       = av_buffersink_get_channels(ost->filter->filter);
    3159         993 :         enc_ctx->time_base      = (AVRational){ 1, enc_ctx->sample_rate };
    3160         993 :         break;
    3161             :     case AVMEDIA_TYPE_VIDEO:
    3162        4006 :         enc_ctx->time_base = av_inv_q(ost->frame_rate);
    3163        4006 :         if (!(enc_ctx->time_base.num && enc_ctx->time_base.den))
    3164           0 :             enc_ctx->time_base = av_buffersink_get_time_base(ost->filter->filter);
    3165        4006 :         if (   av_q2d(enc_ctx->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
    3166           2 :            && (video_sync_method == VSYNC_CFR || video_sync_method == VSYNC_VSCFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
    3167           0 :             av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
    3168             :                                        "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
    3169             :         }
    3170        4006 :         for (j = 0; j < ost->forced_kf_count; j++)
    3171           0 :             ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
    3172           0 :                                                  AV_TIME_BASE_Q,
    3173             :                                                  enc_ctx->time_base);
    3174             : 
    3175        4006 :         enc_ctx->width  = av_buffersink_get_w(ost->filter->filter);
    3176        4006 :         enc_ctx->height = av_buffersink_get_h(ost->filter->filter);
    3177        8012 :         enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
    3178        4006 :             ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option
    3179        8012 :             av_mul_q(ost->frame_aspect_ratio, (AVRational){ enc_ctx->height, enc_ctx->width }) :
    3180        4006 :             av_buffersink_get_sample_aspect_ratio(ost->filter->filter);
    3181        4006 :         if (!strncmp(ost->enc->name, "libx264", 7) &&
    3182           0 :             enc_ctx->pix_fmt == AV_PIX_FMT_NONE &&
    3183           0 :             av_buffersink_get_format(ost->filter->filter) != AV_PIX_FMT_YUV420P)
    3184           0 :             av_log(NULL, AV_LOG_WARNING,
    3185             :                    "No pixel format specified, %s for H.264 encoding chosen.\n"
    3186             :                    "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
    3187           0 :                    av_get_pix_fmt_name(av_buffersink_get_format(ost->filter->filter)));
    3188        4043 :         if (!strncmp(ost->enc->name, "mpeg2video", 10) &&
    3189          69 :             enc_ctx->pix_fmt == AV_PIX_FMT_NONE &&
    3190          32 :             av_buffersink_get_format(ost->filter->filter) != AV_PIX_FMT_YUV420P)
    3191           0 :             av_log(NULL, AV_LOG_WARNING,
    3192             :                    "No pixel format specified, %s for MPEG-2 encoding chosen.\n"
    3193             :                    "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
    3194           0 :                    av_get_pix_fmt_name(av_buffersink_get_format(ost->filter->filter)));
    3195        4006 :         enc_ctx->pix_fmt = av_buffersink_get_format(ost->filter->filter);
    3196        4006 :         if (dec_ctx)
    3197        3985 :             enc_ctx->bits_per_raw_sample = FFMIN(dec_ctx->bits_per_raw_sample,
    3198             :                                                  av_pix_fmt_desc_get(enc_ctx->pix_fmt)->comp[0].depth);
    3199             : 
    3200        4006 :         ost->st->avg_frame_rate = ost->frame_rate;
    3201             : 
    3202        7991 :         if (!dec_ctx ||
    3203        7394 :             enc_ctx->width   != dec_ctx->width  ||
    3204        6643 :             enc_ctx->height  != dec_ctx->height ||
    3205        3234 :             enc_ctx->pix_fmt != dec_ctx->pix_fmt) {
    3206        2509 :             enc_ctx->bits_per_raw_sample = frame_bits_per_raw_sample;
    3207             :         }
    3208             : 
    3209        4006 :         if (ost->forced_keyframes) {
    3210           1 :             if (!strncmp(ost->forced_keyframes, "expr:", 5)) {
    3211           0 :                 ret = av_expr_parse(&ost->forced_keyframes_pexpr, ost->forced_keyframes+5,
    3212             :                                     forced_keyframes_const_names, NULL, NULL, NULL, NULL, 0, NULL);
    3213           0 :                 if (ret < 0) {
    3214           0 :                     av_log(NULL, AV_LOG_ERROR,
    3215           0 :                            "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5);
    3216           0 :                     return ret;
    3217             :                 }
    3218           0 :                 ost->forced_keyframes_expr_const_values[FKF_N] = 0;
    3219           0 :                 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] = 0;
    3220           0 :                 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] = NAN;
    3221           0 :                 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] = NAN;
    3222             : 
    3223             :             // Don't parse the 'forced_keyframes' in case of 'keep-source-keyframes',
    3224             :             // parse it only for static kf timings
    3225           1 :             } else if(strncmp(ost->forced_keyframes, "source", 6)) {
    3226           1 :                 parse_forced_key_frames(ost->forced_keyframes, ost, ost->enc_ctx);
    3227             :             }
    3228             :         }
    3229        4006 :         break;
    3230             :     case AVMEDIA_TYPE_SUBTITLE:
    3231          27 :         enc_ctx->time_base = (AVRational){1, 1000};
    3232          27 :         if (!enc_ctx->width) {
    3233          27 :             enc_ctx->width     = input_streams[ost->source_index]->st->codecpar->width;
    3234          27 :             enc_ctx->height    = input_streams[ost->source_index]->st->codecpar->height;
    3235             :         }
    3236          27 :         break;
    3237             :     case AVMEDIA_TYPE_DATA:
    3238           0 :         break;
    3239             :     default:
    3240           0 :         abort();
    3241             :         break;
    3242             :     }
    3243             : 
    3244        5026 :     return 0;
    3245             : }
    3246             : 
    3247        5200 : static int init_output_stream(OutputStream *ost, char *error, int error_len)
    3248             : {
    3249        5200 :     int ret = 0;
    3250             : 
    3251        5200 :     if (ost->encoding_needed) {
    3252        5026 :         AVCodec      *codec = ost->enc;
    3253        5026 :         AVCodecContext *dec = NULL;
    3254             :         InputStream *ist;
    3255             : 
    3256        5026 :         ret = init_output_stream_encode(ost);
    3257        5026 :         if (ret < 0)
    3258           0 :             return ret;
    3259             : 
    3260        5026 :         if ((ist = get_input_stream(ost)))
    3261        4998 :             dec = ist->dec_ctx;
    3262        5026 :         if (dec && dec->subtitle_header) {
    3263             :             /* ASS code assumes this buffer is null terminated so add extra byte. */
    3264          26 :             ost->enc_ctx->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
    3265          26 :             if (!ost->enc_ctx->subtitle_header)
    3266           0 :                 return AVERROR(ENOMEM);
    3267          26 :             memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
    3268          26 :             ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
    3269             :         }
    3270        5026 :         if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
    3271        2224 :             av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
    3272        6019 :         if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
    3273        1947 :             !codec->defaults &&
    3274        1845 :             !av_dict_get(ost->encoder_opts, "b", NULL, 0) &&
    3275         891 :             !av_dict_get(ost->encoder_opts, "ab", NULL, 0))
    3276         891 :             av_dict_set(&ost->encoder_opts, "b", "128000", 0);
    3277             : 
    3278        5026 :         if (ost->filter && av_buffersink_get_hw_frames_ctx(ost->filter->filter)) {
    3279           0 :             ost->enc_ctx->hw_frames_ctx = av_buffer_ref(av_buffersink_get_hw_frames_ctx(ost->filter->filter));
    3280           0 :             if (!ost->enc_ctx->hw_frames_ctx)
    3281           0 :                 return AVERROR(ENOMEM);
    3282             :         }
    3283             : 
    3284        5026 :         if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
    3285           0 :             if (ret == AVERROR_EXPERIMENTAL)
    3286           0 :                 abort_codec_experimental(codec, 1);
    3287           0 :             snprintf(error, error_len,
    3288             :                      "Error while opening encoder for output stream #%d:%d - "
    3289             :                      "maybe incorrect parameters such as bit_rate, rate, width or height",
    3290             :                     ost->file_index, ost->index);
    3291           0 :             return ret;
    3292             :         }
    3293        6019 :         if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
    3294         993 :             !(ost->enc->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE))
    3295          85 :             av_buffersink_set_frame_size(ost->filter->filter,
    3296          85 :                                             ost->enc_ctx->frame_size);
    3297        5026 :         assert_avoptions(ost->encoder_opts);
    3298        5026 :         if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000)
    3299           0 :             av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
    3300             :                                          " It takes bits/s as argument, not kbits/s\n");
    3301             : 
    3302        5026 :         ret = avcodec_parameters_from_context(ost->st->codecpar, ost->enc_ctx);
    3303        5026 :         if (ret < 0) {
    3304           0 :             av_log(NULL, AV_LOG_FATAL,
    3305             :                    "Error initializing the output stream codec context.\n");
    3306           0 :             exit_program(1);
    3307             :         }
    3308             :         /*
    3309             :          * FIXME: ost->st->codec should't be needed here anymore.
    3310             :          */
    3311        5026 :         ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx);
    3312        5026 :         if (ret < 0)
    3313           0 :             return ret;
    3314             : 
    3315        5026 :         if (ost->enc_ctx->nb_coded_side_data) {
    3316             :             int i;
    3317             : 
    3318         175 :             ost->st->side_data = av_realloc_array(NULL, ost->enc_ctx->nb_coded_side_data,
    3319             :                                                   sizeof(*ost->st->side_data));
    3320         175 :             if (!ost->st->side_data)
    3321           0 :                 return AVERROR(ENOMEM);
    3322             : 
    3323         350 :             for (i = 0; i < ost->enc_ctx->nb_coded_side_data; i++) {
    3324         175 :                 const AVPacketSideData *sd_src = &ost->enc_ctx->coded_side_data[i];
    3325         175 :                 AVPacketSideData *sd_dst = &ost->st->side_data[i];
    3326             : 
    3327         175 :                 sd_dst->data = av_malloc(sd_src->size);
    3328         175 :                 if (!sd_dst->data)
    3329           0 :                     return AVERROR(ENOMEM);
    3330         175 :                 memcpy(sd_dst->data, sd_src->data, sd_src->size);
    3331         175 :                 sd_dst->size = sd_src->size;
    3332         175 :                 sd_dst->type = sd_src->type;
    3333         175 :                 ost->st->nb_side_data++;
    3334             :             }
    3335             :         }
    3336             : 
    3337             :         // copy timebase while removing common factors
    3338        5026 :         if (ost->st->time_base.num <= 0 || ost->st->time_base.den <= 0)
    3339        5026 :             ost->st->time_base = av_add_q(ost->enc_ctx->time_base, (AVRational){0, 1});
    3340             : 
    3341             :         // copy estimated duration as a hint to the muxer
    3342        5026 :         if (ost->st->duration <= 0 && ist && ist->st->duration > 0)
    3343        3950 :             ost->st->duration = av_rescale_q(ist->st->duration, ist->st->time_base, ost->st->time_base);
    3344             : 
    3345        5026 :         ost->st->codec->codec= ost->enc_ctx->codec;
    3346         174 :     } else if (ost->stream_copy) {
    3347         173 :         ret = init_output_stream_streamcopy(ost);
    3348         173 :         if (ret < 0)
    3349           0 :             return ret;
    3350             : 
    3351             :         /*
    3352             :          * FIXME: will the codec context used by the parser during streamcopy
    3353             :          * This should go away with the new parser API.
    3354             :          */
    3355         173 :         ret = avcodec_parameters_to_context(ost->parser_avctx, ost->st->codecpar);
    3356         173 :         if (ret < 0)
    3357           0 :             return ret;
    3358             :     }
    3359             : 
    3360             :     // parse user provided disposition, and update stream values
    3361        5200 :     if (ost->disposition) {
    3362             :         static const AVOption opts[] = {
    3363             :             { "disposition"         , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, INT64_MAX, .unit = "flags" },
    3364             :             { "default"             , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DEFAULT           },    .unit = "flags" },
    3365             :             { "dub"                 , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DUB               },    .unit = "flags" },
    3366             :             { "original"            , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_ORIGINAL          },    .unit = "flags" },
    3367             :             { "comment"             , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_COMMENT           },    .unit = "flags" },
    3368             :             { "lyrics"              , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_LYRICS            },    .unit = "flags" },
    3369             :             { "karaoke"             , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_KARAOKE           },    .unit = "flags" },
    3370             :             { "forced"              , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_FORCED            },    .unit = "flags" },
    3371             :             { "hearing_impaired"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_HEARING_IMPAIRED  },    .unit = "flags" },
    3372             :             { "visual_impaired"     , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_VISUAL_IMPAIRED   },    .unit = "flags" },
    3373             :             { "clean_effects"       , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_CLEAN_EFFECTS     },    .unit = "flags" },
    3374             :             { "captions"            , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_CAPTIONS          },    .unit = "flags" },
    3375             :             { "descriptions"        , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DESCRIPTIONS      },    .unit = "flags" },
    3376             :             { "metadata"            , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_METADATA          },    .unit = "flags" },
    3377             :             { NULL },
    3378             :         };
    3379             :         static const AVClass class = {
    3380             :             .class_name = "",
    3381             :             .item_name  = av_default_item_name,
    3382             :             .option     = opts,
    3383             :             .version    = LIBAVUTIL_VERSION_INT,
    3384             :         };
    3385           0 :         const AVClass *pclass = &class;
    3386             : 
    3387           0 :         ret = av_opt_eval_flags(&pclass, &opts[0], ost->disposition, &ost->st->disposition);
    3388           0 :         if (ret < 0)
    3389           0 :             return ret;
    3390             :     }
    3391             : 
    3392             :     /* initialize bitstream filters for the output stream
    3393             :      * needs to be done here, because the codec id for streamcopy is not
    3394             :      * known until now */
    3395        5200 :     ret = init_output_bsfs(ost);
    3396        5200 :     if (ret < 0)
    3397           0 :         return ret;
    3398             : 
    3399        5200 :     ost->initialized = 1;
    3400             : 
    3401        5200 :     ret = check_init_output_file(output_files[ost->file_index], ost->file_index);
    3402        5200 :     if (ret < 0)
    3403           0 :         return ret;
    3404             : 
    3405        5200 :     return ret;
    3406             : }
    3407             : 
    3408           0 : static void report_new_stream(int input_index, AVPacket *pkt)
    3409             : {
    3410           0 :     InputFile *file = input_files[input_index];
    3411           0 :     AVStream *st = file->ctx->streams[pkt->stream_index];
    3412             : 
    3413           0 :     if (pkt->stream_index < file->nb_streams_warn)
    3414           0 :         return;
    3415           0 :     av_log(file->ctx, AV_LOG_WARNING,
    3416             :            "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
    3417           0 :            av_get_media_type_string(st->codecpar->codec_type),
    3418             :            input_index, pkt->stream_index,
    3419           0 :            pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
    3420           0 :     file->nb_streams_warn = pkt->stream_index + 1;
    3421             : }
    3422             : 
    3423        5068 : static int transcode_init(void)
    3424             : {
    3425        5068 :     int ret = 0, i, j, k;
    3426             :     AVFormatContext *oc;
    3427             :     OutputStream *ost;
    3428             :     InputStream *ist;
    3429        5068 :     char error[1024] = {0};
    3430             : 
    3431       10065 :     for (i = 0; i < nb_filtergraphs; i++) {
    3432        4997 :         FilterGraph *fg = filtergraphs[i];
    3433        9996 :         for (j = 0; j < fg->nb_outputs; j++) {
    3434        4999 :             OutputFilter *ofilter = fg->outputs[j];
    3435        4999 :             if (!ofilter->ost || ofilter->ost->source_index >= 0)
    3436        4955 :                 continue;
    3437          44 :             if (fg->nb_inputs != 1)
    3438          28 :                 continue;
    3439          17 :             for (k = nb_input_streams-1; k >= 0 ; k--)
    3440          17 :                 if (fg->inputs[0]->ist == input_streams[k])
    3441          16 :                     break;
    3442          16 :             ofilter->ost->source_index = k;
    3443             :         }
    3444             :     }
    3445             : 
    3446             :     /* init framerate emulation */
    3447       10196 :     for (i = 0; i < nb_input_files; i++) {
    3448        5128 :         InputFile *ifile = input_files[i];
    3449        5128 :         if (ifile->rate_emu)
    3450           0 :             for (j = 0; j < ifile->nb_streams; j++)
    3451           0 :                 input_streams[j + ifile->ist_index]->start = av_gettime_relative();
    3452             :     }
    3453             : 
    3454             :     /* hwaccel transcoding */
    3455       10268 :     for (i = 0; i < nb_output_streams; i++) {
    3456        5200 :         ost = output_streams[i];
    3457             : 
    3458        5200 :         if (!ost->stream_copy) {
    3459             : #if CONFIG_LIBMFX
    3460             :             if (qsv_transcode_init(ost))
    3461             :                 exit_program(1);
    3462             : #endif
    3463             : 
    3464             : #if CONFIG_CUVID
    3465        5027 :             if (cuvid_transcode_init(ost))
    3466           0 :                 exit_program(1);
    3467             : #endif
    3468             :         }
    3469             :     }
    3470             : 
    3471             :     /* init input streams */
    3472       10494 :     for (i = 0; i < nb_input_streams; i++)
    3473        5426 :         if ((ret = init_input_stream(i, error, sizeof(error))) < 0) {
    3474           0 :             for (i = 0; i < nb_output_streams; i++) {
    3475           0 :                 ost = output_streams[i];
    3476           0 :                 avcodec_close(ost->enc_ctx);
    3477             :             }
    3478           0 :             goto dump_format;
    3479             :         }
    3480             : 
    3481             :     /* open each encoder */
    3482       10268 :     for (i = 0; i < nb_output_streams; i++) {
    3483        5200 :         ret = init_output_stream(output_streams[i], error, sizeof(error));
    3484        5200 :         if (ret < 0)
    3485           0 :             goto dump_format;
    3486             :     }
    3487             : 
    3488             :     /* discard unused programs */
    3489       10196 :     for (i = 0; i < nb_input_files; i++) {
    3490        5128 :         InputFile *ifile = input_files[i];
    3491        5153 :         for (j = 0; j < ifile->ctx->nb_programs; j++) {
    3492          25 :             AVProgram *p = ifile->ctx->programs[j];
    3493          25 :             int discard  = AVDISCARD_ALL;
    3494             : 
    3495          25 :             for (k = 0; k < p->nb_stream_indexes; k++)
    3496          25 :                 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
    3497          25 :                     discard = AVDISCARD_DEFAULT;
    3498          25 :                     break;
    3499             :                 }
    3500          25 :             p->discard = discard;
    3501             :         }
    3502             :     }
    3503             : 
    3504             :     /* write headers for files with no streams */
    3505       10137 :     for (i = 0; i < nb_output_files; i++) {
    3506        5069 :         oc = output_files[i]->ctx;
    3507        5069 :         if (oc->oformat->flags & AVFMT_NOSTREAMS && oc->nb_streams == 0) {
    3508           1 :             ret = check_init_output_file(output_files[i], i);
    3509           1 :             if (ret < 0)
    3510           0 :                 goto dump_format;
    3511             :         }
    3512             :     }
    3513             : 
    3514             :  dump_format:
    3515             :     /* dump the stream mapping */
    3516        5068 :     av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
    3517       10494 :     for (i = 0; i < nb_input_streams; i++) {
    3518        5426 :         ist = input_streams[i];
    3519             : 
    3520       10437 :         for (j = 0; j < ist->nb_filters; j++) {
    3521        5011 :             if (!filtergraph_is_simple(ist->filters[j]->graph)) {
    3522         224 :                 av_log(NULL, AV_LOG_INFO, "  Stream #%d:%d (%s) -> %s",
    3523         168 :                        ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
    3524          56 :                        ist->filters[j]->name);
    3525          56 :                 if (nb_filtergraphs > 1)
    3526           0 :                     av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
    3527          56 :                 av_log(NULL, AV_LOG_INFO, "\n");
    3528             :             }
    3529             :         }
    3530             :     }
    3531             : 
    3532       10268 :     for (i = 0; i < nb_output_streams; i++) {
    3533        5200 :         ost = output_streams[i];
    3534             : 
    3535        5200 :         if (ost->attachment_filename) {
    3536             :             /* an attached file */
    3537           1 :             av_log(NULL, AV_LOG_INFO, "  File %s -> Stream #%d:%d\n",
    3538             :                    ost->attachment_filename, ost->file_index, ost->index);
    3539           1 :             continue;
    3540             :         }
    3541             : 
    3542        5199 :         if (ost->filter && !filtergraph_is_simple(ost->filter->graph)) {
    3543             :             /* output from a complex graph */
    3544          44 :             av_log(NULL, AV_LOG_INFO, "  %s", ost->filter->name);
    3545          44 :             if (nb_filtergraphs > 1)
    3546           0 :                 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
    3547             : 
    3548          88 :             av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
    3549          88 :                    ost->index, ost->enc ? ost->enc->name : "?");
    3550          44 :             continue;
    3551             :         }
    3552             : 
    3553       15465 :         av_log(NULL, AV_LOG_INFO, "  Stream #%d:%d -> #%d:%d",
    3554        5155 :                input_streams[ost->source_index]->file_index,
    3555        5155 :                input_streams[ost->source_index]->st->index,
    3556             :                ost->file_index,
    3557             :                ost->index);
    3558        5155 :         if (ost->sync_ist != input_streams[ost->source_index])
    3559           0 :             av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
    3560           0 :                    ost->sync_ist->file_index,
    3561           0 :                    ost->sync_ist->st->index);
    3562        5155 :         if (ost->stream_copy)
    3563         173 :             av_log(NULL, AV_LOG_INFO, " (copy)");
    3564             :         else {
    3565        4982 :             const AVCodec *in_codec    = input_streams[ost->source_index]->dec;
    3566        4982 :             const AVCodec *out_codec   = ost->enc;
    3567        4982 :             const char *decoder_name   = "?";
    3568        4982 :             const char *in_codec_name  = "?";
    3569        4982 :             const char *encoder_name   = "?";
    3570        4982 :             const char *out_codec_name = "?";
    3571             :             const AVCodecDescriptor *desc;
    3572             : 
    3573        4982 :             if (in_codec) {
    3574        4982 :                 decoder_name  = in_codec->name;
    3575        4982 :                 desc = avcodec_descriptor_get(in_codec->id);
    3576        4982 :                 if (desc)
    3577        4982 :                     in_codec_name = desc->name;
    3578        4982 :                 if (!strcmp(decoder_name, in_codec_name))
    3579        4834 :                     decoder_name = "native";
    3580             :             }
    3581             : 
    3582        4982 :             if (out_codec) {
    3583        4982 :                 encoder_name   = out_codec->name;
    3584        4982 :                 desc = avcodec_descriptor_get(out_codec->id);
    3585        4982 :                 if (desc)
    3586        4982 :                     out_codec_name = desc->name;
    3587        4982 :                 if (!strcmp(encoder_name, out_codec_name))
    3588        4897 :                     encoder_name = "native";
    3589             :             }
    3590             : 
    3591        4982 :             av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
    3592             :                    in_codec_name, decoder_name,
    3593             :                    out_codec_name, encoder_name);
    3594             :         }
    3595        5155 :         av_log(NULL, AV_LOG_INFO, "\n");
    3596             :     }
    3597             : 
    3598        5068 :     if (ret) {
    3599           0 :         av_log(NULL, AV_LOG_ERROR, "%s\n", error);
    3600           0 :         return ret;
    3601             :     }
    3602             : 
    3603        5068 :     transcode_init_done = 1;
    3604             : 
    3605        5068 :     return 0;
    3606             : }
    3607             : 
    3608             : /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
    3609      395396 : static int need_output(void)
    3610             : {
    3611             :     int i;
    3612             : 
    3613      400757 :     for (i = 0; i < nb_output_streams; i++) {
    3614      395689 :         OutputStream *ost    = output_streams[i];
    3615      395689 :         OutputFile *of       = output_files[ost->file_index];
    3616      395689 :         AVFormatContext *os  = output_files[ost->file_index]->ctx;
    3617             : 
    3618      787918 :         if (ost->finished ||
    3619      781075 :             (os->pb && avio_tell(os->pb) >= of->limit_filesize))
    3620        3460 :             continue;
    3621      392229 :         if (ost->frame_number >= ost->max_frames) {
    3622             :             int j;
    3623        3804 :             for (j = 0; j < of->ctx->nb_streams; j++)
    3624        1903 :                 close_output_stream(output_streams[of->ost_index + j]);
    3625        1901 :             continue;
    3626             :         }
    3627             : 
    3628      390328 :         return 1;
    3629             :     }
    3630             : 
    3631        5068 :     return 0;
    3632             : }
    3633             : 
    3634             : /**
    3635             :  * Select the output stream to process.
    3636             :  *
    3637             :  * @return  selected output stream, or NULL if none available
    3638             :  */
    3639      390328 : static OutputStream *choose_output(void)
    3640             : {
    3641             :     int i;
    3642      390328 :     int64_t opts_min = INT64_MAX;
    3643      390328 :     OutputStream *ost_min = NULL;
    3644             : 
    3645      794218 :     for (i = 0; i < nb_output_streams; i++) {
    3646      403890 :         OutputStream *ost = output_streams[i];
    3647      797675 :         int64_t opts = ost->st->cur_dts == AV_NOPTS_VALUE ? INT64_MIN :
    3648      393785 :                        av_rescale_q(ost->st->cur_dts, ost->st->time_base,
    3649      393785 :                                     AV_TIME_BASE_Q);
    3650      403890 :         if (ost->st->cur_dts == AV_NOPTS_VALUE)
    3651       10105 :             av_log(NULL, AV_LOG_DEBUG, "cur_dts is invalid (this is harmless if it occurs once at the start per stream)\n");
    3652             : 
    3653      403890 :         if (!ost->finished && opts < opts_min) {
    3654      394999 :             opts_min = opts;
    3655      394999 :             ost_min  = ost->unavailable ? NULL : ost;
    3656             :         }
    3657             :     }
    3658      390328 :     return ost_min;
    3659             : }
    3660             : 
    3661           0 : static void set_tty_echo(int on)
    3662             : {
    3663             : #if HAVE_TERMIOS_H
    3664             :     struct termios tty;
    3665           0 :     if (tcgetattr(0, &tty) == 0) {
    3666           0 :         if (on) tty.c_lflag |= ECHO;
    3667           0 :         else    tty.c_lflag &= ~ECHO;
    3668           0 :         tcsetattr(0, TCSANOW, &tty);
    3669             :     }
    3670             : #endif
    3671           0 : }
    3672             : 
    3673        3269 : static int check_keyboard_interaction(int64_t cur_time)
    3674             : {
    3675             :     int i, ret, key;
    3676             :     static int64_t last_time;
    3677        3269 :     if (received_nb_signals)
    3678           0 :         return AVERROR_EXIT;
    3679             :     /* read_key() returns 0 on EOF */
    3680        3269 :     if(cur_time - last_time >= 100000 && !run_as_daemon){
    3681          44 :         key =  read_key();
    3682          44 :         last_time = cur_time;
    3683             :     }else
    3684        3225 :         key = -1;
    3685        3269 :     if (key == 'q')
    3686           0 :         return AVERROR_EXIT;
    3687        3269 :     if (key == '+') av_log_set_level(av_log_get_level()+10);
    3688        3269 :     if (key == '-') av_log_set_level(av_log_get_level()-10);
    3689        3269 :     if (key == 's') qp_hist     ^= 1;
    3690        3269 :     if (key == 'h'){
    3691           0 :         if (do_hex_dump){
    3692           0 :             do_hex_dump = do_pkt_dump = 0;
    3693           0 :         } else if(do_pkt_dump){
    3694           0 :             do_hex_dump = 1;
    3695             :         } else
    3696           0 :             do_pkt_dump = 1;
    3697           0 :         av_log_set_level(AV_LOG_DEBUG);
    3698             :     }
    3699        3269 :     if (key == 'c' || key == 'C'){
    3700           0 :         char buf[4096], target[64], command[256], arg[256] = {0};
    3701             :         double time;
    3702           0 :         int k, n = 0;
    3703           0 :         fprintf(stderr, "\nEnter command: <target>|all <time>|-1 <command>[ <argument>]\n");
    3704           0 :         i = 0;
    3705           0 :         set_tty_echo(1);
    3706           0 :         while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
    3707           0 :             if (k > 0)
    3708           0 :                 buf[i++] = k;
    3709           0 :         buf[i] = 0;
    3710           0 :         set_tty_echo(0);
    3711           0 :         fprintf(stderr, "\n");
    3712           0 :         if (k > 0 &&
    3713             :             (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
    3714           0 :             av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
    3715             :                    target, time, command, arg);
    3716           0 :             for (i = 0; i < nb_filtergraphs; i++) {
    3717           0 :                 FilterGraph *fg = filtergraphs[i];
    3718           0 :                 if (fg->graph) {
    3719           0 :                     if (time < 0) {
    3720           0 :                         ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
    3721             :                                                           key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
    3722           0 :                         fprintf(stderr, "Command reply for stream %d: ret:%d res:\n%s", i, ret, buf);
    3723           0 :                     } else if (key == 'c') {
    3724           0 :                         fprintf(stderr, "Queuing commands only on filters supporting the specific command is unsupported\n");
    3725           0 :                         ret = AVERROR_PATCHWELCOME;
    3726             :                     } else {
    3727           0 :                         ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
    3728           0 :                         if (ret < 0)
    3729           0 :                             fprintf(stderr, "Queuing command failed with error %s\n", av_err2str(ret));
    3730             :                     }
    3731             :                 }
    3732             :             }
    3733             :         } else {
    3734           0 :             av_log(NULL, AV_LOG_ERROR,
    3735             :                    "Parse error, at least 3 arguments were expected, "
    3736             :                    "only %d given in string '%s'\n", n, buf);
    3737             :         }
    3738             :     }
    3739        3269 :     if (key == 'd' || key == 'D'){
    3740           0 :         int debug=0;
    3741           0 :         if(key == 'D') {
    3742           0 :             debug = input_streams[0]->st->codec->debug<<1;
    3743           0 :             if(!debug) debug = 1;
    3744           0 :             while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
    3745           0 :                 debug += debug;
    3746             :         }else{
    3747             :             char buf[32];
    3748           0 :             int k = 0;
    3749           0 :             i = 0;
    3750           0 :             set_tty_echo(1);
    3751           0 :             while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
    3752           0 :                 if (k > 0)
    3753           0 :                     buf[i++] = k;
    3754           0 :             buf[i] = 0;
    3755           0 :             set_tty_echo(0);
    3756           0 :             fprintf(stderr, "\n");
    3757           0 :             if (k <= 0 || sscanf(buf, "%d", &debug)!=1)
    3758           0 :                 fprintf(stderr,"error parsing debug value\n");
    3759             :         }
    3760           0 :         for(i=0;i<nb_input_streams;i++) {
    3761           0 :             input_streams[i]->st->codec->debug = debug;
    3762             :         }
    3763           0 :         for(i=0;i<nb_output_streams;i++) {
    3764           0 :             OutputStream *ost = output_streams[i];
    3765           0 :             ost->enc_ctx->debug = debug;
    3766             :         }
    3767           0 :         if(debug) av_log_set_level(AV_LOG_DEBUG);
    3768           0 :         fprintf(stderr,"debug=%d\n", debug);
    3769             :     }
    3770        3269 :     if (key == '?'){
    3771           0 :         fprintf(stderr, "key    function\n"
    3772             :                         "?      show this help\n"
    3773             :                         "+      increase verbosity\n"
    3774             :                         "-      decrease verbosity\n"
    3775             :                         "c      Send command to first matching filter supporting it\n"
    3776             :                         "C      Send/Queue command to all matching filters\n"
    3777             :                         "D      cycle through available debug modes\n"
    3778             :                         "h      dump packets/hex press to cycle through the 3 states\n"
    3779             :                         "q      quit\n"
    3780             :                         "s      Show QP histogram\n"
    3781             :         );
    3782             :     }
    3783        3269 :     return 0;
    3784             : }
    3785             : 
    3786             : #if HAVE_PTHREADS
    3787         131 : static void *input_thread(void *arg)
    3788             : {
    3789         131 :     InputFile *f = arg;
    3790         131 :     unsigned flags = f->non_blocking ? AV_THREAD_MESSAGE_NONBLOCK : 0;
    3791         131 :     int ret = 0;
    3792             : 
    3793        6383 :     while (1) {
    3794             :         AVPacket pkt;
    3795        6514 :         ret = av_read_frame(f->ctx, &pkt);
    3796             : 
    3797        6515 :         if (ret == AVERROR(EAGAIN)) {
    3798           0 :             av_usleep(10000);
    3799           0 :             continue;
    3800             :         }
    3801        6515 :         if (ret < 0) {
    3802          42 :             av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
    3803          42 :             break;
    3804             :         }
    3805        6473 :         ret = av_thread_message_queue_send(f->in_thread_queue, &pkt, flags);
    3806        6473 :         if (flags && ret == AVERROR(EAGAIN)) {
    3807          56 :             flags = 0;
    3808          56 :             ret = av_thread_message_queue_send(f->in_thread_queue, &pkt, flags);
    3809          55 :             av_log(f->ctx, AV_LOG_WARNING,
    3810             :                    "Thread message queue blocking; consider raising the "
    3811             :                    "thread_queue_size option (current value: %d)\n",
    3812             :                    f->thread_queue_size);
    3813             :         }
    3814        6473 :         if (ret < 0) {
    3815          89 :             if (ret != AVERROR_EOF)
    3816           0 :                 av_log(f->ctx, AV_LOG_ERROR,
    3817             :                        "Unable to send packet to main thread: %s\n",
    3818           0 :                        av_err2str(ret));
    3819          89 :             av_packet_unref(&pkt);
    3820          89 :             av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
    3821          89 :             break;
    3822             :         }
    3823             :     }
    3824             : 
    3825         262 :     return NULL;
    3826             : }
    3827             : 
    3828       15205 : static void free_input_threads(void)
    3829             : {
    3830             :     int i;
    3831             : 
    3832       30589 :     for (i = 0; i < nb_input_files; i++) {
    3833       15384 :         InputFile *f = input_files[i];
    3834             :         AVPacket pkt;
    3835             : 
    3836       15384 :         if (!f || !f->in_thread_queue)
    3837       15253 :             continue;
    3838         131 :         av_thread_message_queue_set_err_send(f->in_thread_queue, AVERROR_EOF);
    3839         930 :         while (av_thread_message_queue_recv(f->in_thread_queue, &pkt, 0) >= 0)
    3840         668 :             av_packet_unref(&pkt);
    3841             : 
    3842         131 :         pthread_join(f->thread, NULL);
    3843         131 :         f->joined = 1;
    3844         131 :         av_thread_message_queue_free(&f->in_thread_queue);
    3845             :     }
    3846       15205 : }
    3847             : 
    3848        5068 : static int init_input_threads(void)
    3849             : {
    3850             :     int i, ret;
    3851             : 
    3852        5068 :     if (nb_input_files == 1)
    3853        4997 :         return 0;
    3854             : 
    3855         202 :     for (i = 0; i < nb_input_files; i++) {
    3856         131 :         InputFile *f = input_files[i];
    3857             : 
    3858         188 :         if (f->ctx->pb ? !f->ctx->pb->seekable :
    3859          57 :             strcmp(f->ctx->iformat->name, "lavfi"))
    3860          56 :             f->non_blocking = 1;
    3861         131 :         ret = av_thread_message_queue_alloc(&f->in_thread_queue,
    3862         131 :                                             f->thread_queue_size, sizeof(AVPacket));
    3863         131 :         if (ret < 0)
    3864           0 :             return ret;
    3865             : 
    3866         131 :         if ((ret = pthread_create(&f->thread, NULL, input_thread, f))) {
    3867           0 :             av_log(NULL, AV_LOG_ERROR, "pthread_create failed: %s. Try to increase `ulimit -v` or decrease `ulimit -s`.\n", strerror(ret));
    3868           0 :             av_thread_message_queue_free(&f->in_thread_queue);
    3869           0 :             return AVERROR(ret);
    3870             :         }
    3871             :     }
    3872          71 :     return 0;
    3873             : }
    3874             : 
    3875        5832 : static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
    3876             : {
    3877        5832 :     return av_thread_message_queue_recv(f->in_thread_queue, pkt,
    3878        5832 :                                         f->non_blocking ?
    3879             :                                         AV_THREAD_MESSAGE_NONBLOCK : 0);
    3880             : }
    3881             : #endif
    3882             : 
    3883      386267 : static int get_input_packet(InputFile *f, AVPacket *pkt)
    3884             : {
    3885      386267 :     if (f->rate_emu) {
    3886             :         int i;
    3887           0 :         for (i = 0; i < f->nb_streams; i++) {
    3888           0 :             InputStream *ist = input_streams[f->ist_index + i];
    3889           0 :             int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
    3890           0 :             int64_t now = av_gettime_relative() - ist->start;
    3891           0 :             if (pts > now)
    3892           0 :                 return AVERROR(EAGAIN);
    3893             :         }
    3894             :     }
    3895             : 
    3896             : #if HAVE_PTHREADS
    3897      386267 :     if (nb_input_files > 1)
    3898        5832 :         return get_input_packet_mt(f, pkt);
    3899             : #endif
    3900      380435 :     return av_read_frame(f->ctx, pkt);
    3901             : }
    3902             : 
    3903          78 : static int got_eagain(void)
    3904             : {
    3905             :     int i;
    3906          78 :     for (i = 0; i < nb_output_streams; i++)
    3907          78 :         if (output_streams[i]->unavailable)
    3908          78 :             return 1;
    3909           0 :     return 0;
    3910             : }
    3911             : 
    3912      382900 : static void reset_eagain(void)
    3913             : {
    3914             :     int i;
    3915      772112 :     for (i = 0; i < nb_input_files; i++)
    3916      389212 :         input_files[i]->eagain = 0;
    3917      778878 :     for (i = 0; i < nb_output_streams; i++)
    3918      395978 :         output_streams[i]->unavailable = 0;
    3919      382900 : }
    3920             : 
    3921             : // set duration to max(tmp, duration) in a proper time base and return duration's time_base
    3922           0 : static AVRational duration_max(int64_t tmp, int64_t *duration, AVRational tmp_time_base,
    3923             :                                 AVRational time_base)
    3924             : {
    3925             :     int ret;
    3926             : 
    3927           0 :     if (!*duration) {
    3928           0 :         *duration = tmp;
    3929           0 :         return tmp_time_base;
    3930             :     }
    3931             : 
    3932           0 :     ret = av_compare_ts(*duration, time_base, tmp, tmp_time_base);
    3933           0 :     if (ret < 0) {
    3934           0 :         *duration = tmp;
    3935           0 :         return tmp_time_base;
    3936             :     }
    3937             : 
    3938           0 :     return time_base;
    3939             : }
    3940             : 
    3941           0 : static int seek_to_start(InputFile *ifile, AVFormatContext *is)
    3942             : {
    3943             :     InputStream *ist;
    3944             :     AVCodecContext *avctx;
    3945           0 :     int i, ret, has_audio = 0;
    3946           0 :     int64_t duration = 0;
    3947             : 
    3948           0 :     ret = av_seek_frame(is, -1, is->start_time, 0);
    3949           0 :     if (ret < 0)
    3950           0 :         return ret;
    3951             : 
    3952           0 :     for (i = 0; i < ifile->nb_streams; i++) {
    3953           0 :         ist   = input_streams[ifile->ist_index + i];
    3954           0 :         avctx = ist->dec_ctx;
    3955             : 
    3956             :         // flush decoders
    3957           0 :         if (ist->decoding_needed) {
    3958           0 :             process_input_packet(ist, NULL, 1);
    3959           0 :             avcodec_flush_buffers(avctx);
    3960             :         }
    3961             : 
    3962             :         /* duration is the length of the last frame in a stream
    3963             :          * when audio stream is present we don't care about
    3964             :          * last video frame length because it's not defined exactly */
    3965           0 :         if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples)
    3966           0 :             has_audio = 1;
    3967             :     }
    3968             : 
    3969           0 :     for (i = 0; i < ifile->nb_streams; i++) {
    3970           0 :         ist   = input_streams[ifile->ist_index + i];
    3971           0 :         avctx = ist->dec_ctx;
    3972             : 
    3973           0 :         if (has_audio) {
    3974           0 :             if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples) {
    3975           0 :                 AVRational sample_rate = {1, avctx->sample_rate};
    3976             : 
    3977           0 :                 duration = av_rescale_q(ist->nb_samples, sample_rate, ist->st->time_base);
    3978             :             } else
    3979           0 :                 continue;
    3980             :         } else {
    3981           0 :             if (ist->framerate.num) {
    3982           0 :                 duration = av_rescale_q(1, ist->framerate, ist->st->time_base);
    3983           0 :             } else if (ist->st->avg_frame_rate.num) {
    3984           0 :                 duration = av_rescale_q(1, ist->st->avg_frame_rate, ist->st->time_base);
    3985           0 :             } else duration = 1;
    3986             :         }
    3987           0 :         if (!ifile->duration)
    3988           0 :             ifile->time_base = ist->st->time_base;
    3989             :         /* the total duration of the stream, max_pts - min_pts is
    3990             :          * the duration of the stream without the last frame */
    3991           0 :         duration += ist->max_pts - ist->min_pts;
    3992           0 :         ifile->time_base = duration_max(duration, &ifile->duration, ist->st->time_base,
    3993             :                                         ifile->time_base);
    3994             :     }
    3995             : 
    3996           0 :     if (ifile->loop > 0)
    3997           0 :         ifile->loop--;
    3998             : 
    3999           0 :     return ret;
    4000             : }
    4001             : 
    4002             : /*
    4003             :  * Return
    4004             :  * - 0 -- one packet was read and processed
    4005             :  * - AVERROR(EAGAIN) -- no packets were available for selected file,
    4006             :  *   this function should be called again
    4007             :  * - AVERROR_EOF -- this function should not be called again
    4008             :  */
    4009      386267 : static int process_input(int file_index)
    4010             : {
    4011      386267 :     InputFile *ifile = input_files[file_index];
    4012             :     AVFormatContext *is;
    4013             :     InputStream *ist;
    4014             :     AVPacket pkt;
    4015             :     int ret, i, j;
    4016             :     int64_t duration;
    4017             :     int64_t pkt_dts;
    4018             : 
    4019      386267 :     is  = ifile->ctx;
    4020      386267 :     ret = get_input_packet(ifile, &pkt);
    4021             : 
    4022      386267 :     if (ret == AVERROR(EAGAIN)) {
    4023          78 :         ifile->eagain = 1;
    4024          78 :         return ret;
    4025             :     }
    4026      386189 :     if (ret < 0 && ifile->loop) {
    4027           0 :         if ((ret = seek_to_start(ifile, is)) < 0)
    4028           0 :             return ret;
    4029           0 :         ret = get_input_packet(ifile, &pkt);
    4030           0 :         if (ret == AVERROR(EAGAIN)) {
    4031           0 :             ifile->eagain = 1;
    4032           0 :             return ret;
    4033             :         }
    4034             :     }
    4035      386189 :     if (ret < 0) {
    4036        3367 :         if (ret != AVERROR_EOF) {
    4037          86 :             print_error(is->filename, ret);
    4038          86 :             if (exit_on_error)
    4039           0 :                 exit_program(1);
    4040             :         }
    4041             : 
    4042        6413 :         for (i = 0; i < ifile->nb_streams; i++) {
    4043        3629 :             ist = input_streams[ifile->ist_index + i];
    4044        3629 :             if (ist->decoding_needed) {
    4045        3293 :                 ret = process_input_packet(ist, NULL, 0);
    4046        3293 :                 if (ret>0)
    4047         583 :                     return 0;
    4048             :             }
    4049             : 
    4050             :             /* mark all outputs that don't go through lavfi as finished */
    4051        6343 :             for (j = 0; j < nb_output_streams; j++) {
    4052        3297 :                 OutputStream *ost = output_streams[j];
    4053             : 
    4054        6144 :                 if (ost->source_index == ifile->ist_index + i &&
    4055        5533 :                     (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
    4056         188 :                     finish_output_stream(ost);
    4057             :             }
    4058             :         }
    4059             : 
    4060        2784 :         ifile->eof_reached = 1;
    4061        2784 :         return AVERROR(EAGAIN);
    4062             :     }
    4063             : 
    4064      382822 :     reset_eagain();
    4065             : 
    4066      382822 :     if (do_pkt_dump) {
    4067           0 :         av_pkt_dump_log2(NULL, AV_LOG_INFO, &pkt, do_hex_dump,
    4068           0 :                          is->streams[pkt.stream_index]);
    4069             :     }
    4070             :     /* the following test is needed in case new streams appear
    4071             :        dynamically in stream : we ignore them */
    4072      382822 :     if (pkt.stream_index >= ifile->nb_streams) {
    4073           0 :         report_new_stream(file_index, &pkt);
    4074           0 :         goto discard_packet;
    4075             :     }
    4076             : 
    4077      382822 :     ist = input_streams[ifile->ist_index + pkt.stream_index];
    4078             : 
    4079      382822 :     ist->data_size += pkt.size;
    4080      382822 :     ist->nb_packets++;
    4081             : 
    4082      382822 :     if (ist->discard)
    4083        7532 :         goto discard_packet;
    4084             : 
    4085      375290 :     if (exit_on_error && (pkt.flags & AV_PKT_FLAG_CORRUPT)) {
    4086           0 :         av_log(NULL, AV_LOG_FATAL, "%s: corrupt input packet in stream %d\n", is->filename, pkt.stream_index);
    4087           0 :         exit_program(1);
    4088             :     }
    4089             : 
    4090      375290 :     if (debug_ts) {
    4091           0 :         av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
    4092             :                "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",
    4093           0 :                ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->dec_ctx->codec_type),
    4094           0 :                av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q),
    4095           0 :                av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q),
    4096           0 :                av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
    4097           0 :                av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
    4098           0 :                av_ts2str(input_files[ist->file_index]->ts_offset),
    4099           0 :                av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
    4100             :     }
    4101             : 
    4102      375290 :     if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
    4103             :         int64_t stime, stime2;
    4104             :         // Correcting starttime based on the enabled streams
    4105             :         // 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.
    4106             :         //       so we instead do it here as part of discontinuity handling
    4107         223 :         if (   ist->next_dts == AV_NOPTS_VALUE
    4108         223 :             && ifile->ts_offset == -is->start_time
    4109         221 :             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
    4110          40 :             int64_t new_start_time = INT64_MAX;
    4111         111 :             for (i=0; i<is->nb_streams; i++) {
    4112          71 :                 AVStream *st = is->streams[i];
    4113          71 :                 if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
    4114          13 :                     continue;
    4115          58 :                 new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
    4116             :             }
    4117          40 :             if (new_start_time > is->start_time) {
    4118           3 :                 av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
    4119           3 :                 ifile->ts_offset = -new_start_time;
    4120             :             }
    4121             :         }
    4122             : 
    4123         223 :         stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
    4124         223 :         stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
    4125         223 :         ist->wrap_correction_done = 1;
    4126             : 
    4127         223 :         if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
    4128           0 :             pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
    4129           0 :             ist->wrap_correction_done = 0;
    4130             :         }
    4131         223 :         if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
    4132           0 :             pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
    4133           0 :             ist->wrap_correction_done = 0;
    4134             :         }
    4135             :     }
    4136             : 
    4137             :     /* add the stream-global side data to the first packet */
    4138      375290 :     if (ist->nb_packets == 1) {
    4139        5191 :         if (ist->st->nb_side_data)
    4140         212 :             av_packet_split_side_data(&pkt);
    4141        5403 :         for (i = 0; i < ist->st->nb_side_data; i++) {
    4142         212 :             AVPacketSideData *src_sd = &ist->st->side_data[i];
    4143             :             uint8_t *dst_data;
    4144             : 
    4145         212 :             if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
    4146           0 :                 continue;
    4147         212 :             if (ist->autorotate && src_sd->type == AV_PKT_DATA_DISPLAYMATRIX)
    4148           1 :                 continue;
    4149             : 
    4150         211 :             dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
    4151         211 :             if (!dst_data)
    4152           0 :                 exit_program(1);
    4153             : 
    4154         211 :             memcpy(dst_data, src_sd->data, src_sd->size);
    4155             :         }
    4156             :     }
    4157             : 
    4158      375290 :     if (pkt.dts != AV_NOPTS_VALUE)
    4159      344051 :         pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
    4160      375290 :     if (pkt.pts != AV_NOPTS_VALUE)
    4161      341968 :         pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
    4162             : 
    4163      375290 :     if (pkt.pts != AV_NOPTS_VALUE)
    4164      341968 :         pkt.pts *= ist->ts_scale;
    4165      375290 :     if (pkt.dts != AV_NOPTS_VALUE)
    4166      344051 :         pkt.dts *= ist->ts_scale;
    4167             : 
    4168      375290 :     pkt_dts = av_rescale_q_rnd(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q, AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX);
    4169      648105 :     if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
    4170      646765 :          ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) &&
    4171      342713 :         pkt_dts != AV_NOPTS_VALUE && ist->next_dts == AV_NOPTS_VALUE && !copy_ts
    4172        5163 :         && (is->iformat->flags & AVFMT_TS_DISCONT) && ifile->last_ts != AV_NOPTS_VALUE) {
    4173          77 :         int64_t delta   = pkt_dts - ifile->last_ts;
    4174         154 :         if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
    4175          77 :             delta >  1LL*dts_delta_threshold*AV_TIME_BASE){
    4176           0 :             ifile->ts_offset -= delta;
    4177           0 :             av_log(NULL, AV_LOG_DEBUG,
    4178             :                    "Inter stream timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
    4179             :                    delta, ifile->ts_offset);
    4180           0 :             pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
    4181           0 :             if (pkt.pts != AV_NOPTS_VALUE)
    4182           0 :                 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
    4183             :         }
    4184             :     }
    4185             : 
    4186      375290 :     duration = av_rescale_q(ifile->duration, ifile->time_base, ist->st->time_base);
    4187      375290 :     if (pkt.pts != AV_NOPTS_VALUE) {
    4188      341968 :         pkt.pts += duration;
    4189      341968 :         ist->max_pts = FFMAX(pkt.pts, ist->max_pts);
    4190      341968 :         ist->min_pts = FFMIN(pkt.pts, ist->min_pts);
    4191             :     }
    4192             : 
    4193      375290 :     if (pkt.dts != AV_NOPTS_VALUE)
    4194      344051 :         pkt.dts += duration;
    4195             : 
    4196      375290 :     pkt_dts = av_rescale_q_rnd(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q, AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX);
    4197      648105 :     if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
    4198      646765 :          ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) &&
    4199      680262 :          pkt_dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
    4200      337549 :         !copy_ts) {
    4201      337476 :         int64_t delta   = pkt_dts - ist->next_dts;
    4202      337476 :         if (is->iformat->flags & AVFMT_TS_DISCONT) {
    4203       27286 :             if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
    4204       27286 :                 delta >  1LL*dts_delta_threshold*AV_TIME_BASE ||
    4205       13643 :                 pkt_dts + AV_TIME_BASE/10 < FFMAX(ist->pts, ist->dts)) {
    4206           8 :                 ifile->ts_offset -= delta;
    4207           8 :                 av_log(NULL, AV_LOG_DEBUG,
    4208             :                        "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
    4209             :                        delta, ifile->ts_offset);
    4210           8 :                 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
    4211           8 :                 if (pkt.pts != AV_NOPTS_VALUE)
    4212           8 :                     pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
    4213             :             }
    4214             :         } else {
    4215      647666 :             if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
    4216      323833 :                  delta >  1LL*dts_error_threshold*AV_TIME_BASE) {
    4217           0 :                 av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
    4218           0 :                 pkt.dts = AV_NOPTS_VALUE;
    4219             :             }
    4220      323833 :             if (pkt.pts != AV_NOPTS_VALUE){
    4221      321809 :                 int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
    4222      321809 :                 delta   = pkt_pts - ist->next_dts;
    4223      643618 :                 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
    4224      321809 :                      delta >  1LL*dts_error_threshold*AV_TIME_BASE) {
    4225           0 :                     av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
    4226           0 :                     pkt.pts = AV_NOPTS_VALUE;
    4227             :                 }
    4228             :             }
    4229             :         }
    4230             :     }
    4231             : 
    4232      375290 :     if (pkt.dts != AV_NOPTS_VALUE)
    4233      344051 :         ifile->last_ts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
    4234             : 
    4235      375290 :     if (debug_ts) {
    4236           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",
    4237           0 :                ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->dec_ctx->codec_type),
    4238           0 :                av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
    4239           0 :                av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
    4240           0 :                av_ts2str(input_files[ist->file_index]->ts_offset),
    4241           0 :                av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
    4242             :     }
    4243             : 
    4244      375290 :     sub2video_heartbeat(ist, pkt.pts);
    4245             : 
    4246      375290 :     process_input_packet(ist, &pkt, 0);
    4247             : 
    4248             : discard_packet:
    4249      382822 :     av_packet_unref(&pkt);
    4250             : 
    4251      382822 :     return 0;
    4252             : }
    4253             : 
    4254             : /**
    4255             :  * Perform a step of transcoding for the specified filter graph.
    4256             :  *
    4257             :  * @param[in]  graph     filter graph to consider
    4258             :  * @param[out] best_ist  input stream where a frame would allow to continue
    4259             :  * @return  0 for success, <0 for error
    4260             :  */
    4261      369689 : static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
    4262             : {
    4263             :     int i, ret;
    4264      369689 :     int nb_requests, nb_requests_max = 0;
    4265             :     InputFilter *ifilter;
    4266             :     InputStream *ist;
    4267             : 
    4268      369689 :     *best_ist = NULL;
    4269      369689 :     ret = avfilter_graph_request_oldest(graph->graph);
    4270      369689 :     if (ret >= 0)
    4271         885 :         return reap_filters(0);
    4272             : 
    4273      368804 :     if (ret == AVERROR_EOF) {
    4274        3098 :         ret = reap_filters(1);
    4275        6198 :         for (i = 0; i < graph->nb_outputs; i++)
    4276        3100 :             close_output_stream(graph->outputs[i]->ost);
    4277        3098 :         return ret;
    4278             :     }
    4279      365706 :     if (ret != AVERROR(EAGAIN))
    4280           0 :         return ret;
    4281             : 
    4282      736199 :     for (i = 0; i < graph->nb_inputs; i++) {
    4283      370493 :         ifilter = graph->inputs[i];
    4284      370493 :         ist = ifilter->ist;
    4285      740986 :         if (input_files[ist->file_index]->eagain ||
    4286      370493 :             input_files[ist->file_index]->eof_reached)
    4287        1115 :             continue;
    4288      369378 :         nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
    4289      369378 :         if (nb_requests > nb_requests_max) {
    4290      365706 :             nb_requests_max = nb_requests;
    4291      365706 :             *best_ist = ist;
    4292             :         }
    4293             :     }
    4294             : 
    4295      365706 :     if (!*best_ist)
    4296           0 :         for (i = 0; i < graph->nb_outputs; i++)
    4297           0 :             graph->outputs[i]->ost->unavailable = 1;
    4298             : 
    4299      365706 :     return 0;
    4300             : }
    4301             : 
    4302             : /**
    4303             :  * Run a single step of transcoding.
    4304             :  *
    4305             :  * @return  0 for success, <0 for error
    4306             :  */
    4307      390328 : static int transcode_step(void)
    4308             : {
    4309             :     OutputStream *ost;
    4310             :     InputStream  *ist;
    4311             :     int ret;
    4312             : 
    4313      390328 :     ost = choose_output();
    4314      390328 :     if (!ost) {
    4315          78 :         if (got_eagain()) {
    4316          78 :             reset_eagain();
    4317          78 :             av_usleep(10000);
    4318          78 :             return 0;
    4319             :         }
    4320           0 :         av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
    4321           0 :         return AVERROR_EOF;
    4322             :     }
    4323             : 
    4324      390250 :     if (ost->filter) {
    4325      369689 :         if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
    4326           0 :             return ret;
    4327      369689 :         if (!ist)
    4328        3983 :             return 0;
    4329             :     } else {
    4330       20561 :         av_assert0(ost->source_index >= 0);
    4331       20561 :         ist = input_streams[ost->source_index];
    4332             :     }
    4333             : 
    4334      386267 :     ret = process_input(ist->file_index);
    4335      386267 :     if (ret == AVERROR(EAGAIN)) {
    4336        2862 :         if (input_files[ist->file_index]->eagain)
    4337          78 :             ost->unavailable = 1;
    4338        2862 :         return 0;
    4339             :     }
    4340             : 
    4341      383405 :     if (ret < 0)
    4342           0 :         return ret == AVERROR_EOF ? 0 : ret;
    4343             : 
    4344      383405 :     return reap_filters(0);
    4345             : }
    4346             : 
    4347             : /*
    4348             :  * The following code is the main loop of the file converter
    4349             :  */
    4350        5068 : static int transcode(void)
    4351             : {
    4352             :     int ret, i;
    4353             :     AVFormatContext *os;
    4354             :     OutputStream *ost;
    4355             :     InputStream *ist;
    4356             :     int64_t timer_start;
    4357        5068 :     int64_t total_packets_written = 0;
    4358             : 
    4359        5068 :     ret = transcode_init();
    4360        5068 :     if (ret < 0)
    4361           0 :         goto fail;
    4362             : 
    4363        5068 :     if (stdin_interaction) {
    4364          10 :         av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
    4365             :     }
    4366             : 
    4367        5068 :     timer_start = av_gettime_relative();
    4368             : 
    4369             : #if HAVE_PTHREADS
    4370        5068 :     if ((ret = init_input_threads()) < 0)
    4371           0 :         goto fail;
    4372             : #endif
    4373             : 
    4374      400464 :     while (!received_sigterm) {
    4375      395396 :         int64_t cur_time= av_gettime_relative();
    4376             : 
    4377             :         /* if 'q' pressed, exits */
    4378      395396 :         if (stdin_interaction)
    4379        3269 :             if (check_keyboard_interaction(cur_time) < 0)
    4380           0 :                 break;
    4381             : 
    4382             :         /* check if there's any stream where output is still needed */
    4383      395396 :         if (!need_output()) {
    4384        5068 :             av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
    4385        5068 :             break;
    4386             :         }
    4387             : 
    4388      390328 :         ret = transcode_step();
    4389      390328 :         if (ret < 0 && ret != AVERROR_EOF) {
    4390             :             char errbuf[128];
    4391           0 :             av_strerror(ret, errbuf, sizeof(errbuf));
    4392             : 
    4393           0 :             av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
    4394           0 :             break;
    4395             :         }
    4396             : 
    4397             :         /* dump report by using the output first video and audio streams */
    4398      390328 :         print_report(0, timer_start, cur_time);
    4399             :     }
    4400             : #if HAVE_PTHREADS
    4401        5068 :     free_input_threads();
    4402             : #endif
    4403             : 
    4404             :     /* at the end of stream, we must flush the decoder buffers */
    4405       10494 :     for (i = 0; i < nb_input_streams; i++) {
    4406        5426 :         ist = input_streams[i];
    4407        5426 :         if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
    4408        2326 :             process_input_packet(ist, NULL, 0);
    4409             :         }
    4410             :     }
    4411        5068 :     flush_encoders();
    4412             : 
    4413        5068 :     term_exit();
    4414             : 
    4415             :     /* write the trailer if needed and close file */
    4416       10137 :     for (i = 0; i < nb_output_files; i++) {
    4417        5069 :         os = output_files[i]->ctx;
    4418        5069 :         if (!output_files[i]->header_written) {
    4419           0 :             av_log(NULL, AV_LOG_ERROR,
    4420             :                    "Nothing was written into output file %d (%s), because "
    4421             :                    "at least one of its streams received no packets.\n",
    4422           0 :                    i, os->filename);
    4423           0 :             continue;
    4424             :         }
    4425        5069 :         if ((ret = av_write_trailer(os)) < 0) {
    4426           0 :             av_log(NULL, AV_LOG_ERROR, "Error writing trailer of %s: %s", os->filename, av_err2str(ret));
    4427           0 :             if (exit_on_error)
    4428           0 :                 exit_program(1);
    4429             :         }
    4430             :     }
    4431             : 
    4432             :     /* dump report by using the first video and audio streams */
    4433        5068 :     print_report(1, timer_start, av_gettime_relative());
    4434             : 
    4435             :     /* close each encoder */
    4436       10268 :     for (i = 0; i < nb_output_streams; i++) {
    4437        5200 :         ost = output_streams[i];
    4438        5200 :         if (ost->encoding_needed) {
    4439        5026 :             av_freep(&ost->enc_ctx->stats_in);
    4440             :         }
    4441        5200 :         total_packets_written += ost->packets_written;
    4442             :     }
    4443             : 
    4444        5068 :     if (!total_packets_written && (abort_on_flags & ABORT_ON_FLAG_EMPTY_OUTPUT)) {
    4445           0 :         av_log(NULL, AV_LOG_FATAL, "Empty output\n");
    4446           0 :         exit_program(1);
    4447             :     }
    4448             : 
    4449             :     /* close each decoder */
    4450       10494 :     for (i = 0; i < nb_input_streams; i++) {
    4451        5426 :         ist = input_streams[i];
    4452        5426 :         if (ist->decoding_needed) {
    4453        5036 :             avcodec_close(ist->dec_ctx);
    4454        5036 :             if (ist->hwaccel_uninit)
    4455           0 :                 ist->hwaccel_uninit(ist->dec_ctx);
    4456             :         }
    4457             :     }
    4458             : 
    4459        5068 :     av_buffer_unref(&hw_device_ctx);
    4460             : 
    4461             :     /* finished ! */
    4462        5068 :     ret = 0;
    4463             : 
    4464             :  fail:
    4465             : #if HAVE_PTHREADS
    4466        5068 :     free_input_threads();
    4467             : #endif
    4468             : 
    4469        5068 :     if (output_streams) {
    4470       10267 :         for (i = 0; i < nb_output_streams; i++) {
    4471        5200 :             ost = output_streams[i];
    4472        5200 :             if (ost) {
    4473        5200 :                 if (ost->logfile) {
    4474           0 :                     if (fclose(ost->logfile))
    4475           0 :                         av_log(NULL, AV_LOG_ERROR,
    4476             :                                "Error closing logfile, loss of information possible: %s\n",
    4477           0 :                                av_err2str(AVERROR(errno)));
    4478           0 :                     ost->logfile = NULL;
    4479             :                 }
    4480        5200 :                 av_freep(&ost->forced_kf_pts);
    4481        5200 :                 av_freep(&ost->apad);
    4482        5200 :                 av_freep(&ost->disposition);
    4483        5200 :                 av_dict_free(&ost->encoder_opts);
    4484        5200 :                 av_dict_free(&ost->sws_dict);
    4485        5200 :                 av_dict_free(&ost->swr_opts);
    4486        5200 :                 av_dict_free(&ost->resample_opts);
    4487             :             }
    4488             :         }
    4489             :     }
    4490        5068 :     return ret;
    4491             : }
    4492             : 
    4493             : 
    4494       10136 : static int64_t getutime(void)
    4495             : {
    4496             : #if HAVE_GETRUSAGE
    4497             :     struct rusage rusage;
    4498             : 
    4499       10136 :     getrusage(RUSAGE_SELF, &rusage);
    4500       10136 :     return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
    4501             : #elif HAVE_GETPROCESSTIMES
    4502             :     HANDLE proc;
    4503             :     FILETIME c, e, k, u;
    4504             :     proc = GetCurrentProcess();
    4505             :     GetProcessTimes(proc, &c, &e, &k, &u);
    4506             :     return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
    4507             : #else
    4508             :     return av_gettime_relative();
    4509             : #endif
    4510             : }
    4511             : 
    4512           0 : static int64_t getmaxrss(void)
    4513             : {
    4514             : #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
    4515             :     struct rusage rusage;
    4516           0 :     getrusage(RUSAGE_SELF, &rusage);
    4517           0 :     return (int64_t)rusage.ru_maxrss * 1024;
    4518             : #elif HAVE_GETPROCESSMEMORYINFO
    4519             :     HANDLE proc;
    4520             :     PROCESS_MEMORY_COUNTERS memcounters;
    4521             :     proc = GetCurrentProcess();
    4522             :     memcounters.cb = sizeof(memcounters);
    4523             :     GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
    4524             :     return memcounters.PeakPagefileUsage;
    4525             : #else
    4526             :     return 0;
    4527             : #endif
    4528             : }
    4529             : 
    4530           0 : static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
    4531             : {
    4532           0 : }
    4533             : 
    4534        5069 : int main(int argc, char **argv)
    4535             : {
    4536             :     int i, ret;
    4537             :     int64_t ti;
    4538             : 
    4539        5069 :     init_dynload();
    4540             : 
    4541        5069 :     register_exit(ffmpeg_cleanup);
    4542             : 
    4543        5069 :     setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
    4544             : 
    4545        5069 :     av_log_set_flags(AV_LOG_SKIP_REPEATED);
    4546        5069 :     parse_loglevel(argc, argv, options);
    4547             : 
    4548        5069 :     if(argc>1 && !strcmp(argv[1], "-d")){
    4549           0 :         run_as_daemon=1;
    4550           0 :         av_log_set_callback(log_callback_null);
    4551           0 :         argc--;
    4552           0 :         argv++;
    4553             :     }
    4554             : 
    4555        5069 :     avcodec_register_all();
    4556             : #if CONFIG_AVDEVICE
    4557        5069 :     avdevice_register_all();
    4558             : #endif
    4559        5069 :     avfilter_register_all();
    4560        5069 :     av_register_all();
    4561        5069 :     avformat_network_init();
    4562             : 
    4563        5069 :     show_banner(argc, argv, options);
    4564             : 
    4565             :     /* parse options and open all input/output files */
    4566        5069 :     ret = ffmpeg_parse_options(argc, argv);
    4567        5068 :     if (ret < 0)
    4568           0 :         exit_program(1);
    4569             : 
    4570        5068 :     if (nb_output_files <= 0 && nb_input_files == 0) {
    4571           0 :         show_usage();
    4572           0 :         av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
    4573           0 :         exit_program(1);
    4574             :     }
    4575             : 
    4576             :     /* file converter / grab */
    4577        5068 :     if (nb_output_files <= 0) {
    4578           0 :         av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
    4579           0 :         exit_program(1);
    4580             :     }
    4581             : 
    4582             : //     if (nb_input_files == 0) {
    4583             : //         av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
    4584             : //         exit_program(1);
    4585             : //     }
    4586             : 
    4587       10137 :     for (i = 0; i < nb_output_files; i++) {
    4588        5069 :         if (strcmp(output_files[i]->ctx->oformat->name, "rtp"))
    4589        5069 :             want_sdp = 0;
    4590             :     }
    4591             : 
    4592        5068 :     current_time = ti = getutime();
    4593        5068 :     if (transcode() < 0)
    4594           0 :         exit_program(1);
    4595        5068 :     ti = getutime() - ti;
    4596        5068 :     if (do_benchmark) {
    4597           0 :         av_log(NULL, AV_LOG_INFO, "bench: utime=%0.3fs\n", ti / 1000000.0);
    4598             :     }
    4599        5068 :     av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n",
    4600             :            decode_error_stat[0], decode_error_stat[1]);
    4601        5068 :     if ((decode_error_stat[0] + decode_error_stat[1]) * max_error_rate < decode_error_stat[1])
    4602           0 :         exit_program(69);
    4603             : 
    4604        5068 :     exit_program(received_nb_signals ? 255 : main_return_code);
    4605             :     return main_return_code;
    4606             : }

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