FFmpeg  3.3.9
ffmpeg.c
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1 /*
2  * Copyright (c) 2000-2003 Fabrice Bellard
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 /**
22  * @file
23  * multimedia converter based on the FFmpeg libraries
24  */
25 
26 #include "config.h"
27 #include <ctype.h>
28 #include <string.h>
29 #include <math.h>
30 #include <stdlib.h>
31 #include <errno.h>
32 #include <limits.h>
33 #include <stdatomic.h>
34 #include <stdint.h>
35 
36 #if HAVE_IO_H
37 #include <io.h>
38 #endif
39 #if HAVE_UNISTD_H
40 #include <unistd.h>
41 #endif
42 
43 #include "libavformat/avformat.h"
44 #include "libavdevice/avdevice.h"
46 #include "libavutil/opt.h"
48 #include "libavutil/parseutils.h"
49 #include "libavutil/samplefmt.h"
50 #include "libavutil/fifo.h"
51 #include "libavutil/hwcontext.h"
52 #include "libavutil/internal.h"
53 #include "libavutil/intreadwrite.h"
54 #include "libavutil/dict.h"
55 #include "libavutil/display.h"
56 #include "libavutil/mathematics.h"
57 #include "libavutil/pixdesc.h"
58 #include "libavutil/avstring.h"
59 #include "libavutil/libm.h"
60 #include "libavutil/imgutils.h"
61 #include "libavutil/timestamp.h"
62 #include "libavutil/bprint.h"
63 #include "libavutil/time.h"
65 #include "libavcodec/mathops.h"
66 #include "libavformat/os_support.h"
67 
68 # include "libavfilter/avfilter.h"
69 # include "libavfilter/buffersrc.h"
70 # include "libavfilter/buffersink.h"
71 
72 #if HAVE_SYS_RESOURCE_H
73 #include <sys/time.h>
74 #include <sys/types.h>
75 #include <sys/resource.h>
76 #elif HAVE_GETPROCESSTIMES
77 #include <windows.h>
78 #endif
79 #if HAVE_GETPROCESSMEMORYINFO
80 #include <windows.h>
81 #include <psapi.h>
82 #endif
83 #if HAVE_SETCONSOLECTRLHANDLER
84 #include <windows.h>
85 #endif
86 
87 
88 #if HAVE_SYS_SELECT_H
89 #include <sys/select.h>
90 #endif
91 
92 #if HAVE_TERMIOS_H
93 #include <fcntl.h>
94 #include <sys/ioctl.h>
95 #include <sys/time.h>
96 #include <termios.h>
97 #elif HAVE_KBHIT
98 #include <conio.h>
99 #endif
100 
101 #if HAVE_PTHREADS
102 #include <pthread.h>
103 #endif
104 
105 #include <time.h>
106 
107 #include "ffmpeg.h"
108 #include "cmdutils.h"
109 
110 #include "libavutil/avassert.h"
111 
112 const char program_name[] = "ffmpeg";
113 const int program_birth_year = 2000;
114 
115 static FILE *vstats_file;
116 
117 const char *const forced_keyframes_const_names[] = {
118  "n",
119  "n_forced",
120  "prev_forced_n",
121  "prev_forced_t",
122  "t",
123  NULL
124 };
125 
126 static void do_video_stats(OutputStream *ost, int frame_size);
127 static int64_t getutime(void);
128 static int64_t getmaxrss(void);
130 
131 static int run_as_daemon = 0;
132 static int nb_frames_dup = 0;
133 static unsigned dup_warning = 1000;
134 static int nb_frames_drop = 0;
135 static int64_t decode_error_stat[2];
136 
137 static int want_sdp = 1;
138 
139 static int current_time;
141 
143 
148 
153 
156 
157 #if HAVE_TERMIOS_H
158 
159 /* init terminal so that we can grab keys */
160 static struct termios oldtty;
161 static int restore_tty;
162 #endif
163 
164 #if HAVE_PTHREADS
165 static void free_input_threads(void);
166 #endif
167 
168 /* sub2video hack:
169  Convert subtitles to video with alpha to insert them in filter graphs.
170  This is a temporary solution until libavfilter gets real subtitles support.
171  */
172 
174 {
175  int ret;
176  AVFrame *frame = ist->sub2video.frame;
177 
178  av_frame_unref(frame);
179  ist->sub2video.frame->width = ist->dec_ctx->width ? ist->dec_ctx->width : ist->sub2video.w;
180  ist->sub2video.frame->height = ist->dec_ctx->height ? ist->dec_ctx->height : ist->sub2video.h;
182  if ((ret = av_frame_get_buffer(frame, 32)) < 0)
183  return ret;
184  memset(frame->data[0], 0, frame->height * frame->linesize[0]);
185  return 0;
186 }
187 
188 static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h,
189  AVSubtitleRect *r)
190 {
191  uint32_t *pal, *dst2;
192  uint8_t *src, *src2;
193  int x, y;
194 
195  if (r->type != SUBTITLE_BITMAP) {
196  av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n");
197  return;
198  }
199  if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) {
200  av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle (%d %d %d %d) overflowing %d %d\n",
201  r->x, r->y, r->w, r->h, w, h
202  );
203  return;
204  }
205 
206  dst += r->y * dst_linesize + r->x * 4;
207  src = r->data[0];
208  pal = (uint32_t *)r->data[1];
209  for (y = 0; y < r->h; y++) {
210  dst2 = (uint32_t *)dst;
211  src2 = src;
212  for (x = 0; x < r->w; x++)
213  *(dst2++) = pal[*(src2++)];
214  dst += dst_linesize;
215  src += r->linesize[0];
216  }
217 }
218 
219 static void sub2video_push_ref(InputStream *ist, int64_t pts)
220 {
221  AVFrame *frame = ist->sub2video.frame;
222  int i;
223 
224  av_assert1(frame->data[0]);
225  ist->sub2video.last_pts = frame->pts = pts;
226  for (i = 0; i < ist->nb_filters; i++)
230 }
231 
233 {
234  AVFrame *frame = ist->sub2video.frame;
235  int8_t *dst;
236  int dst_linesize;
237  int num_rects, i;
238  int64_t pts, end_pts;
239 
240  if (!frame)
241  return;
242  if (sub) {
243  pts = av_rescale_q(sub->pts + sub->start_display_time * 1000LL,
244  AV_TIME_BASE_Q, ist->st->time_base);
245  end_pts = av_rescale_q(sub->pts + sub->end_display_time * 1000LL,
246  AV_TIME_BASE_Q, ist->st->time_base);
247  num_rects = sub->num_rects;
248  } else {
249  pts = ist->sub2video.end_pts;
250  end_pts = INT64_MAX;
251  num_rects = 0;
252  }
253  if (sub2video_get_blank_frame(ist) < 0) {
255  "Impossible to get a blank canvas.\n");
256  return;
257  }
258  dst = frame->data [0];
259  dst_linesize = frame->linesize[0];
260  for (i = 0; i < num_rects; i++)
261  sub2video_copy_rect(dst, dst_linesize, frame->width, frame->height, sub->rects[i]);
262  sub2video_push_ref(ist, pts);
263  ist->sub2video.end_pts = end_pts;
264 }
265 
266 static void sub2video_heartbeat(InputStream *ist, int64_t pts)
267 {
268  InputFile *infile = input_files[ist->file_index];
269  int i, j, nb_reqs;
270  int64_t pts2;
271 
272  /* When a frame is read from a file, examine all sub2video streams in
273  the same file and send the sub2video frame again. Otherwise, decoded
274  video frames could be accumulating in the filter graph while a filter
275  (possibly overlay) is desperately waiting for a subtitle frame. */
276  for (i = 0; i < infile->nb_streams; i++) {
277  InputStream *ist2 = input_streams[infile->ist_index + i];
278  if (!ist2->sub2video.frame)
279  continue;
280  /* subtitles seem to be usually muxed ahead of other streams;
281  if not, subtracting a larger time here is necessary */
282  pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
283  /* do not send the heartbeat frame if the subtitle is already ahead */
284  if (pts2 <= ist2->sub2video.last_pts)
285  continue;
286  if (pts2 >= ist2->sub2video.end_pts || !ist2->sub2video.frame->data[0])
287  sub2video_update(ist2, NULL);
288  for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
289  nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
290  if (nb_reqs)
291  sub2video_push_ref(ist2, pts2);
292  }
293 }
294 
295 static void sub2video_flush(InputStream *ist)
296 {
297  int i;
298 
299  if (ist->sub2video.end_pts < INT64_MAX)
300  sub2video_update(ist, NULL);
301  for (i = 0; i < ist->nb_filters; i++)
303 }
304 
305 /* end of sub2video hack */
306 
307 static void term_exit_sigsafe(void)
308 {
309 #if HAVE_TERMIOS_H
310  if(restore_tty)
311  tcsetattr (0, TCSANOW, &oldtty);
312 #endif
313 }
314 
315 void term_exit(void)
316 {
317  av_log(NULL, AV_LOG_QUIET, "%s", "");
319 }
320 
321 static volatile int received_sigterm = 0;
322 static volatile int received_nb_signals = 0;
324 static volatile int ffmpeg_exited = 0;
325 static int main_return_code = 0;
326 
327 static void
329 {
330  received_sigterm = sig;
333  if(received_nb_signals > 3) {
334  write(2/*STDERR_FILENO*/, "Received > 3 system signals, hard exiting\n",
335  strlen("Received > 3 system signals, hard exiting\n"));
336 
337  exit(123);
338  }
339 }
340 
341 #if HAVE_SETCONSOLECTRLHANDLER
342 static BOOL WINAPI CtrlHandler(DWORD fdwCtrlType)
343 {
344  av_log(NULL, AV_LOG_DEBUG, "\nReceived windows signal %ld\n", fdwCtrlType);
345 
346  switch (fdwCtrlType)
347  {
348  case CTRL_C_EVENT:
349  case CTRL_BREAK_EVENT:
350  sigterm_handler(SIGINT);
351  return TRUE;
352 
353  case CTRL_CLOSE_EVENT:
354  case CTRL_LOGOFF_EVENT:
355  case CTRL_SHUTDOWN_EVENT:
356  sigterm_handler(SIGTERM);
357  /* Basically, with these 3 events, when we return from this method the
358  process is hard terminated, so stall as long as we need to
359  to try and let the main thread(s) clean up and gracefully terminate
360  (we have at most 5 seconds, but should be done far before that). */
361  while (!ffmpeg_exited) {
362  Sleep(0);
363  }
364  return TRUE;
365 
366  default:
367  av_log(NULL, AV_LOG_ERROR, "Received unknown windows signal %ld\n", fdwCtrlType);
368  return FALSE;
369  }
370 }
371 #endif
372 
373 void term_init(void)
374 {
375 #if HAVE_TERMIOS_H
377  struct termios tty;
378  if (tcgetattr (0, &tty) == 0) {
379  oldtty = tty;
380  restore_tty = 1;
381 
382  tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
383  |INLCR|IGNCR|ICRNL|IXON);
384  tty.c_oflag |= OPOST;
385  tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
386  tty.c_cflag &= ~(CSIZE|PARENB);
387  tty.c_cflag |= CS8;
388  tty.c_cc[VMIN] = 1;
389  tty.c_cc[VTIME] = 0;
390 
391  tcsetattr (0, TCSANOW, &tty);
392  }
393  signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
394  }
395 #endif
396 
397  signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
398  signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
399 #ifdef SIGXCPU
400  signal(SIGXCPU, sigterm_handler);
401 #endif
402 #if HAVE_SETCONSOLECTRLHANDLER
403  SetConsoleCtrlHandler((PHANDLER_ROUTINE) CtrlHandler, TRUE);
404 #endif
405 }
406 
407 /* read a key without blocking */
408 static int read_key(void)
409 {
410  unsigned char ch;
411 #if HAVE_TERMIOS_H
412  int n = 1;
413  struct timeval tv;
414  fd_set rfds;
415 
416  FD_ZERO(&rfds);
417  FD_SET(0, &rfds);
418  tv.tv_sec = 0;
419  tv.tv_usec = 0;
420  n = select(1, &rfds, NULL, NULL, &tv);
421  if (n > 0) {
422  n = read(0, &ch, 1);
423  if (n == 1)
424  return ch;
425 
426  return n;
427  }
428 #elif HAVE_KBHIT
429 # if HAVE_PEEKNAMEDPIPE
430  static int is_pipe;
431  static HANDLE input_handle;
432  DWORD dw, nchars;
433  if(!input_handle){
434  input_handle = GetStdHandle(STD_INPUT_HANDLE);
435  is_pipe = !GetConsoleMode(input_handle, &dw);
436  }
437 
438  if (is_pipe) {
439  /* When running under a GUI, you will end here. */
440  if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL)) {
441  // input pipe may have been closed by the program that ran ffmpeg
442  return -1;
443  }
444  //Read it
445  if(nchars != 0) {
446  read(0, &ch, 1);
447  return ch;
448  }else{
449  return -1;
450  }
451  }
452 # endif
453  if(kbhit())
454  return(getch());
455 #endif
456  return -1;
457 }
458 
459 static int decode_interrupt_cb(void *ctx)
460 {
462 }
463 
465 
466 static void ffmpeg_cleanup(int ret)
467 {
468  int i, j;
469 
470  if (do_benchmark) {
471  int maxrss = getmaxrss() / 1024;
472  av_log(NULL, AV_LOG_INFO, "bench: maxrss=%ikB\n", maxrss);
473  }
474 
475  for (i = 0; i < nb_filtergraphs; i++) {
476  FilterGraph *fg = filtergraphs[i];
478  for (j = 0; j < fg->nb_inputs; j++) {
479  while (av_fifo_size(fg->inputs[j]->frame_queue)) {
480  AVFrame *frame;
481  av_fifo_generic_read(fg->inputs[j]->frame_queue, &frame,
482  sizeof(frame), NULL);
483  av_frame_free(&frame);
484  }
486  if (fg->inputs[j]->ist->sub2video.sub_queue) {
487  while (av_fifo_size(fg->inputs[j]->ist->sub2video.sub_queue)) {
488  AVSubtitle sub;
490  &sub, sizeof(sub), NULL);
491  avsubtitle_free(&sub);
492  }
494  }
496  av_freep(&fg->inputs[j]->name);
497  av_freep(&fg->inputs[j]);
498  }
499  av_freep(&fg->inputs);
500  for (j = 0; j < fg->nb_outputs; j++) {
501  av_freep(&fg->outputs[j]->name);
502  av_freep(&fg->outputs[j]->formats);
503  av_freep(&fg->outputs[j]->channel_layouts);
504  av_freep(&fg->outputs[j]->sample_rates);
505  av_freep(&fg->outputs[j]);
506  }
507  av_freep(&fg->outputs);
508  av_freep(&fg->graph_desc);
509 
510  av_freep(&filtergraphs[i]);
511  }
512  av_freep(&filtergraphs);
513 
515 
516  /* close files */
517  for (i = 0; i < nb_output_files; i++) {
518  OutputFile *of = output_files[i];
520  if (!of)
521  continue;
522  s = of->ctx;
523  if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE))
524  avio_closep(&s->pb);
526  av_dict_free(&of->opts);
527 
528  av_freep(&output_files[i]);
529  }
530  for (i = 0; i < nb_output_streams; i++) {
531  OutputStream *ost = output_streams[i];
532 
533  if (!ost)
534  continue;
535 
536  for (j = 0; j < ost->nb_bitstream_filters; j++)
537  av_bsf_free(&ost->bsf_ctx[j]);
538  av_freep(&ost->bsf_ctx);
540 
542  av_frame_free(&ost->last_frame);
543  av_dict_free(&ost->encoder_opts);
544 
545  av_parser_close(ost->parser);
547 
548  av_freep(&ost->forced_keyframes);
550  av_freep(&ost->avfilter);
551  av_freep(&ost->logfile_prefix);
552 
554  ost->audio_channels_mapped = 0;
555 
556  av_dict_free(&ost->sws_dict);
557 
560 
561  if (ost->muxing_queue) {
562  while (av_fifo_size(ost->muxing_queue)) {
563  AVPacket pkt;
564  av_fifo_generic_read(ost->muxing_queue, &pkt, sizeof(pkt), NULL);
565  av_packet_unref(&pkt);
566  }
568  }
569 
570  av_freep(&output_streams[i]);
571  }
572 #if HAVE_PTHREADS
574 #endif
575  for (i = 0; i < nb_input_files; i++) {
576  avformat_close_input(&input_files[i]->ctx);
577  av_freep(&input_files[i]);
578  }
579  for (i = 0; i < nb_input_streams; i++) {
580  InputStream *ist = input_streams[i];
581 
584  av_dict_free(&ist->decoder_opts);
587  av_freep(&ist->filters);
588  av_freep(&ist->hwaccel_device);
589  av_freep(&ist->dts_buffer);
590 
592 
593  av_freep(&input_streams[i]);
594  }
595 
596  if (vstats_file) {
597  if (fclose(vstats_file))
599  "Error closing vstats file, loss of information possible: %s\n",
600  av_err2str(AVERROR(errno)));
601  }
603 
604  av_freep(&input_streams);
605  av_freep(&input_files);
606  av_freep(&output_streams);
607  av_freep(&output_files);
608 
609  uninit_opts();
610 
612 
613  if (received_sigterm) {
614  av_log(NULL, AV_LOG_INFO, "Exiting normally, received signal %d.\n",
615  (int) received_sigterm);
616  } else if (ret && atomic_load(&transcode_init_done)) {
617  av_log(NULL, AV_LOG_INFO, "Conversion failed!\n");
618  }
619  term_exit();
620  ffmpeg_exited = 1;
621 }
622 
624 {
625  AVDictionaryEntry *t = NULL;
626 
627  while ((t = av_dict_get(b, "", t, AV_DICT_IGNORE_SUFFIX))) {
629  }
630 }
631 
633 {
635  if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
636  av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
637  exit_program(1);
638  }
639 }
640 
641 static void abort_codec_experimental(AVCodec *c, int encoder)
642 {
643  exit_program(1);
644 }
645 
646 static void update_benchmark(const char *fmt, ...)
647 {
648  if (do_benchmark_all) {
649  int64_t t = getutime();
650  va_list va;
651  char buf[1024];
652 
653  if (fmt) {
654  va_start(va, fmt);
655  vsnprintf(buf, sizeof(buf), fmt, va);
656  va_end(va);
657  av_log(NULL, AV_LOG_INFO, "bench: %8"PRIu64" %s \n", t - current_time, buf);
658  }
659  current_time = t;
660  }
661 }
662 
663 static void close_all_output_streams(OutputStream *ost, OSTFinished this_stream, OSTFinished others)
664 {
665  int i;
666  for (i = 0; i < nb_output_streams; i++) {
667  OutputStream *ost2 = output_streams[i];
668  ost2->finished |= ost == ost2 ? this_stream : others;
669  }
670 }
671 
672 static void write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost, int unqueue)
673 {
674  AVFormatContext *s = of->ctx;
675  AVStream *st = ost->st;
676  int ret;
677 
678  /*
679  * Audio encoders may split the packets -- #frames in != #packets out.
680  * But there is no reordering, so we can limit the number of output packets
681  * by simply dropping them here.
682  * Counting encoded video frames needs to be done separately because of
683  * reordering, see do_video_out().
684  * Do not count the packet when unqueued because it has been counted when queued.
685  */
686  if (!(st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && ost->encoding_needed) && !unqueue) {
687  if (ost->frame_number >= ost->max_frames) {
688  av_packet_unref(pkt);
689  return;
690  }
691  ost->frame_number++;
692  }
693 
694  if (!of->header_written) {
695  AVPacket tmp_pkt = {0};
696  /* the muxer is not initialized yet, buffer the packet */
697  if (!av_fifo_space(ost->muxing_queue)) {
698  int new_size = FFMIN(2 * av_fifo_size(ost->muxing_queue),
699  ost->max_muxing_queue_size);
700  if (new_size <= av_fifo_size(ost->muxing_queue)) {
702  "Too many packets buffered for output stream %d:%d.\n",
703  ost->file_index, ost->st->index);
704  exit_program(1);
705  }
706  ret = av_fifo_realloc2(ost->muxing_queue, new_size);
707  if (ret < 0)
708  exit_program(1);
709  }
710  ret = av_packet_ref(&tmp_pkt, pkt);
711  if (ret < 0)
712  exit_program(1);
713  av_fifo_generic_write(ost->muxing_queue, &tmp_pkt, sizeof(tmp_pkt), NULL);
714  av_packet_unref(pkt);
715  return;
716  }
717 
720  pkt->pts = pkt->dts = AV_NOPTS_VALUE;
721 
722  if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
723  int i;
725  NULL);
726  ost->quality = sd ? AV_RL32(sd) : -1;
727  ost->pict_type = sd ? sd[4] : AV_PICTURE_TYPE_NONE;
728 
729  for (i = 0; i<FF_ARRAY_ELEMS(ost->error); i++) {
730  if (sd && i < sd[5])
731  ost->error[i] = AV_RL64(sd + 8 + 8*i);
732  else
733  ost->error[i] = -1;
734  }
735 
736  if (ost->frame_rate.num && ost->is_cfr) {
737  if (pkt->duration > 0)
738  av_log(NULL, AV_LOG_WARNING, "Overriding packet duration by frame rate, this should not happen\n");
739  pkt->duration = av_rescale_q(1, av_inv_q(ost->frame_rate),
740  ost->mux_timebase);
741  }
742  }
743 
744  av_packet_rescale_ts(pkt, ost->mux_timebase, ost->st->time_base);
745 
746  if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS)) {
747  if (pkt->dts != AV_NOPTS_VALUE &&
748  pkt->pts != AV_NOPTS_VALUE &&
749  pkt->dts > pkt->pts) {
750  av_log(s, AV_LOG_WARNING, "Invalid DTS: %"PRId64" PTS: %"PRId64" in output stream %d:%d, replacing by guess\n",
751  pkt->dts, pkt->pts,
752  ost->file_index, ost->st->index);
753  pkt->pts =
754  pkt->dts = pkt->pts + pkt->dts + ost->last_mux_dts + 1
755  - FFMIN3(pkt->pts, pkt->dts, ost->last_mux_dts + 1)
756  - FFMAX3(pkt->pts, pkt->dts, ost->last_mux_dts + 1);
757  }
759  pkt->dts != AV_NOPTS_VALUE &&
760  !(st->codecpar->codec_id == AV_CODEC_ID_VP9 && ost->stream_copy) &&
761  ost->last_mux_dts != AV_NOPTS_VALUE) {
762  int64_t max = ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
763  if (pkt->dts < max) {
764  int loglevel = max - pkt->dts > 2 || st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG;
765  av_log(s, loglevel, "Non-monotonous DTS in output stream "
766  "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
767  ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
768  if (exit_on_error) {
769  av_log(NULL, AV_LOG_FATAL, "aborting.\n");
770  exit_program(1);
771  }
772  av_log(s, loglevel, "changing to %"PRId64". This may result "
773  "in incorrect timestamps in the output file.\n",
774  max);
775  if (pkt->pts >= pkt->dts)
776  pkt->pts = FFMAX(pkt->pts, max);
777  pkt->dts = max;
778  }
779  }
780  }
781  ost->last_mux_dts = pkt->dts;
782 
783  ost->data_size += pkt->size;
784  ost->packets_written++;
785 
786  pkt->stream_index = ost->index;
787 
788  if (debug_ts) {
789  av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
790  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
792  av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
793  av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
794  pkt->size
795  );
796  }
797 
798  ret = av_interleaved_write_frame(s, pkt);
799  if (ret < 0) {
800  print_error("av_interleaved_write_frame()", ret);
801  main_return_code = 1;
803  }
804  av_packet_unref(pkt);
805 }
806 
808 {
809  OutputFile *of = output_files[ost->file_index];
810 
811  ost->finished |= ENCODER_FINISHED;
812  if (of->shortest) {
813  int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, AV_TIME_BASE_Q);
814  of->recording_time = FFMIN(of->recording_time, end);
815  }
816 }
817 
819 {
820  int ret = 0;
821 
822  /* apply the output bitstream filters, if any */
823  if (ost->nb_bitstream_filters) {
824  int idx;
825 
826  ret = av_bsf_send_packet(ost->bsf_ctx[0], pkt);
827  if (ret < 0)
828  goto finish;
829 
830  idx = 1;
831  while (idx) {
832  /* get a packet from the previous filter up the chain */
833  ret = av_bsf_receive_packet(ost->bsf_ctx[idx - 1], pkt);
834  if (ret == AVERROR(EAGAIN)) {
835  ret = 0;
836  idx--;
837  continue;
838  } else if (ret < 0)
839  goto finish;
840  /* HACK! - aac_adtstoasc updates extradata after filtering the first frame when
841  * the api states this shouldn't happen after init(). Propagate it here to the
842  * muxer and to the next filters in the chain to workaround this.
843  * TODO/FIXME - Make aac_adtstoasc use new packet side data instead of changing
844  * par_out->extradata and adapt muxers accordingly to get rid of this. */
845  if (!(ost->bsf_extradata_updated[idx - 1] & 1)) {
846  ret = avcodec_parameters_copy(ost->st->codecpar, ost->bsf_ctx[idx - 1]->par_out);
847  if (ret < 0)
848  goto finish;
849  ost->bsf_extradata_updated[idx - 1] |= 1;
850  }
851 
852  /* send it to the next filter down the chain or to the muxer */
853  if (idx < ost->nb_bitstream_filters) {
854  /* HACK/FIXME! - See above */
855  if (!(ost->bsf_extradata_updated[idx] & 2)) {
856  ret = avcodec_parameters_copy(ost->bsf_ctx[idx]->par_out, ost->bsf_ctx[idx - 1]->par_out);
857  if (ret < 0)
858  goto finish;
859  ost->bsf_extradata_updated[idx] |= 2;
860  }
861  ret = av_bsf_send_packet(ost->bsf_ctx[idx], pkt);
862  if (ret < 0)
863  goto finish;
864  idx++;
865  } else
866  write_packet(of, pkt, ost, 0);
867  }
868  } else
869  write_packet(of, pkt, ost, 0);
870 
871 finish:
872  if (ret < 0 && ret != AVERROR_EOF) {
873  av_log(NULL, AV_LOG_ERROR, "Error applying bitstream filters to an output "
874  "packet for stream #%d:%d.\n", ost->file_index, ost->index);
875  if(exit_on_error)
876  exit_program(1);
877  }
878 }
879 
881 {
882  OutputFile *of = output_files[ost->file_index];
883 
884  if (of->recording_time != INT64_MAX &&
886  AV_TIME_BASE_Q) >= 0) {
887  close_output_stream(ost);
888  return 0;
889  }
890  return 1;
891 }
892 
893 static void do_audio_out(OutputFile *of, OutputStream *ost,
894  AVFrame *frame)
895 {
896  AVCodecContext *enc = ost->enc_ctx;
897  AVPacket pkt;
898  int ret;
899 
900  av_init_packet(&pkt);
901  pkt.data = NULL;
902  pkt.size = 0;
903 
904  if (!check_recording_time(ost))
905  return;
906 
907  if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
908  frame->pts = ost->sync_opts;
909  ost->sync_opts = frame->pts + frame->nb_samples;
910  ost->samples_encoded += frame->nb_samples;
911  ost->frames_encoded++;
912 
913  av_assert0(pkt.size || !pkt.data);
915  if (debug_ts) {
916  av_log(NULL, AV_LOG_INFO, "encoder <- type:audio "
917  "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
918  av_ts2str(frame->pts), av_ts2timestr(frame->pts, &enc->time_base),
919  enc->time_base.num, enc->time_base.den);
920  }
921 
922  ret = avcodec_send_frame(enc, frame);
923  if (ret < 0)
924  goto error;
925 
926  while (1) {
927  ret = avcodec_receive_packet(enc, &pkt);
928  if (ret == AVERROR(EAGAIN))
929  break;
930  if (ret < 0)
931  goto error;
932 
933  update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
934 
935  av_packet_rescale_ts(&pkt, enc->time_base, ost->mux_timebase);
936 
937  if (debug_ts) {
938  av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
939  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
940  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &enc->time_base),
941  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &enc->time_base));
942  }
943 
944  output_packet(of, &pkt, ost);
945  }
946 
947  return;
948 error:
949  av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
950  exit_program(1);
951 }
952 
953 static void do_subtitle_out(OutputFile *of,
954  OutputStream *ost,
955  AVSubtitle *sub)
956 {
957  int subtitle_out_max_size = 1024 * 1024;
958  int subtitle_out_size, nb, i;
959  AVCodecContext *enc;
960  AVPacket pkt;
961  int64_t pts;
962 
963  if (sub->pts == AV_NOPTS_VALUE) {
964  av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
965  if (exit_on_error)
966  exit_program(1);
967  return;
968  }
969 
970  enc = ost->enc_ctx;
971 
972  if (!subtitle_out) {
973  subtitle_out = av_malloc(subtitle_out_max_size);
974  if (!subtitle_out) {
975  av_log(NULL, AV_LOG_FATAL, "Failed to allocate subtitle_out\n");
976  exit_program(1);
977  }
978  }
979 
980  /* Note: DVB subtitle need one packet to draw them and one other
981  packet to clear them */
982  /* XXX: signal it in the codec context ? */
984  nb = 2;
985  else
986  nb = 1;
987 
988  /* shift timestamp to honor -ss and make check_recording_time() work with -t */
989  pts = sub->pts;
990  if (output_files[ost->file_index]->start_time != AV_NOPTS_VALUE)
991  pts -= output_files[ost->file_index]->start_time;
992  for (i = 0; i < nb; i++) {
993  unsigned save_num_rects = sub->num_rects;
994 
995  ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
996  if (!check_recording_time(ost))
997  return;
998 
999  sub->pts = pts;
1000  // start_display_time is required to be 0
1001  sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
1002  sub->end_display_time -= sub->start_display_time;
1003  sub->start_display_time = 0;
1004  if (i == 1)
1005  sub->num_rects = 0;
1006 
1007  ost->frames_encoded++;
1008 
1009  subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1010  subtitle_out_max_size, sub);
1011  if (i == 1)
1012  sub->num_rects = save_num_rects;
1013  if (subtitle_out_size < 0) {
1014  av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
1015  exit_program(1);
1016  }
1017 
1018  av_init_packet(&pkt);
1019  pkt.data = subtitle_out;
1020  pkt.size = subtitle_out_size;
1021  pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->mux_timebase);
1022  pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->mux_timebase);
1023  if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
1024  /* XXX: the pts correction is handled here. Maybe handling
1025  it in the codec would be better */
1026  if (i == 0)
1027  pkt.pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, ost->mux_timebase);
1028  else
1029  pkt.pts += av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->mux_timebase);
1030  }
1031  pkt.dts = pkt.pts;
1032  output_packet(of, &pkt, ost);
1033  }
1034 }
1035 
1036 static void do_video_out(OutputFile *of,
1037  OutputStream *ost,
1038  AVFrame *next_picture,
1039  double sync_ipts)
1040 {
1041  int ret, format_video_sync;
1042  AVPacket pkt;
1043  AVCodecContext *enc = ost->enc_ctx;
1044  AVCodecParameters *mux_par = ost->st->codecpar;
1045  AVRational frame_rate;
1046  int nb_frames, nb0_frames, i;
1047  double delta, delta0;
1048  double duration = 0;
1049  int frame_size = 0;
1050  InputStream *ist = NULL;
1052 
1053  if (ost->source_index >= 0)
1054  ist = input_streams[ost->source_index];
1055 
1056  frame_rate = av_buffersink_get_frame_rate(filter);
1057  if (frame_rate.num > 0 && frame_rate.den > 0)
1058  duration = 1/(av_q2d(frame_rate) * av_q2d(enc->time_base));
1059 
1060  if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
1061  duration = FFMIN(duration, 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base)));
1062 
1063  if (!ost->filters_script &&
1064  !ost->filters &&
1065  next_picture &&
1066  ist &&
1067  lrintf(av_frame_get_pkt_duration(next_picture) * av_q2d(ist->st->time_base) / av_q2d(enc->time_base)) > 0) {
1068  duration = lrintf(av_frame_get_pkt_duration(next_picture) * av_q2d(ist->st->time_base) / av_q2d(enc->time_base));
1069  }
1070 
1071  if (!next_picture) {
1072  //end, flushing
1073  nb0_frames = nb_frames = mid_pred(ost->last_nb0_frames[0],
1074  ost->last_nb0_frames[1],
1075  ost->last_nb0_frames[2]);
1076  } else {
1077  delta0 = sync_ipts - ost->sync_opts; // delta0 is the "drift" between the input frame (next_picture) and where it would fall in the output.
1078  delta = delta0 + duration;
1079 
1080  /* by default, we output a single frame */
1081  nb0_frames = 0; // tracks the number of times the PREVIOUS frame should be duplicated, mostly for variable framerate (VFR)
1082  nb_frames = 1;
1083 
1084  format_video_sync = video_sync_method;
1085  if (format_video_sync == VSYNC_AUTO) {
1086  if(!strcmp(of->ctx->oformat->name, "avi")) {
1087  format_video_sync = VSYNC_VFR;
1088  } else
1089  format_video_sync = (of->ctx->oformat->flags & AVFMT_VARIABLE_FPS) ? ((of->ctx->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : VSYNC_CFR;
1090  if ( ist
1091  && format_video_sync == VSYNC_CFR
1092  && input_files[ist->file_index]->ctx->nb_streams == 1
1093  && input_files[ist->file_index]->input_ts_offset == 0) {
1094  format_video_sync = VSYNC_VSCFR;
1095  }
1096  if (format_video_sync == VSYNC_CFR && copy_ts) {
1097  format_video_sync = VSYNC_VSCFR;
1098  }
1099  }
1100  ost->is_cfr = (format_video_sync == VSYNC_CFR || format_video_sync == VSYNC_VSCFR);
1101 
1102  if (delta0 < 0 &&
1103  delta > 0 &&
1104  format_video_sync != VSYNC_PASSTHROUGH &&
1105  format_video_sync != VSYNC_DROP) {
1106  if (delta0 < -0.6) {
1107  av_log(NULL, AV_LOG_WARNING, "Past duration %f too large\n", -delta0);
1108  } else
1109  av_log(NULL, AV_LOG_DEBUG, "Clipping frame in rate conversion by %f\n", -delta0);
1110  sync_ipts = ost->sync_opts;
1111  duration += delta0;
1112  delta0 = 0;
1113  }
1114 
1115  switch (format_video_sync) {
1116  case VSYNC_VSCFR:
1117  if (ost->frame_number == 0 && delta0 >= 0.5) {
1118  av_log(NULL, AV_LOG_DEBUG, "Not duplicating %d initial frames\n", (int)lrintf(delta0));
1119  delta = duration;
1120  delta0 = 0;
1121  ost->sync_opts = lrint(sync_ipts);
1122  }
1123  case VSYNC_CFR:
1124  // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1125  if (frame_drop_threshold && delta < frame_drop_threshold && ost->frame_number) {
1126  nb_frames = 0;
1127  } else if (delta < -1.1)
1128  nb_frames = 0;
1129  else if (delta > 1.1) {
1130  nb_frames = lrintf(delta);
1131  if (delta0 > 1.1)
1132  nb0_frames = lrintf(delta0 - 0.6);
1133  }
1134  break;
1135  case VSYNC_VFR:
1136  if (delta <= -0.6)
1137  nb_frames = 0;
1138  else if (delta > 0.6)
1139  ost->sync_opts = lrint(sync_ipts);
1140  break;
1141  case VSYNC_DROP:
1142  case VSYNC_PASSTHROUGH:
1143  ost->sync_opts = lrint(sync_ipts);
1144  break;
1145  default:
1146  av_assert0(0);
1147  }
1148  }
1149 
1150  nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
1151  nb0_frames = FFMIN(nb0_frames, nb_frames);
1152 
1153  memmove(ost->last_nb0_frames + 1,
1154  ost->last_nb0_frames,
1155  sizeof(ost->last_nb0_frames[0]) * (FF_ARRAY_ELEMS(ost->last_nb0_frames) - 1));
1156  ost->last_nb0_frames[0] = nb0_frames;
1157 
1158  if (nb0_frames == 0 && ost->last_dropped) {
1159  nb_frames_drop++;
1161  "*** dropping frame %d from stream %d at ts %"PRId64"\n",
1162  ost->frame_number, ost->st->index, ost->last_frame->pts);
1163  }
1164  if (nb_frames > (nb0_frames && ost->last_dropped) + (nb_frames > nb0_frames)) {
1165  if (nb_frames > dts_error_threshold * 30) {
1166  av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
1167  nb_frames_drop++;
1168  return;
1169  }
1170  nb_frames_dup += nb_frames - (nb0_frames && ost->last_dropped) - (nb_frames > nb0_frames);
1171  av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
1172  if (nb_frames_dup > dup_warning) {
1173  av_log(NULL, AV_LOG_WARNING, "More than %d frames duplicated\n", dup_warning);
1174  dup_warning *= 10;
1175  }
1176  }
1177  ost->last_dropped = nb_frames == nb0_frames && next_picture;
1178 
1179  /* duplicates frame if needed */
1180  for (i = 0; i < nb_frames; i++) {
1181  AVFrame *in_picture;
1182  av_init_packet(&pkt);
1183  pkt.data = NULL;
1184  pkt.size = 0;
1185 
1186  if (i < nb0_frames && ost->last_frame) {
1187  in_picture = ost->last_frame;
1188  } else
1189  in_picture = next_picture;
1190 
1191  if (!in_picture)
1192  return;
1193 
1194  in_picture->pts = ost->sync_opts;
1195 
1196 #if 1
1197  if (!check_recording_time(ost))
1198 #else
1199  if (ost->frame_number >= ost->max_frames)
1200 #endif
1201  return;
1202 
1203 #if FF_API_LAVF_FMT_RAWPICTURE
1204  if (of->ctx->oformat->flags & AVFMT_RAWPICTURE &&
1205  enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
1206  /* raw pictures are written as AVPicture structure to
1207  avoid any copies. We support temporarily the older
1208  method. */
1209  if (in_picture->interlaced_frame)
1210  mux_par->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
1211  else
1212  mux_par->field_order = AV_FIELD_PROGRESSIVE;
1213  pkt.data = (uint8_t *)in_picture;
1214  pkt.size = sizeof(AVPicture);
1215  pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->mux_timebase);
1216  pkt.flags |= AV_PKT_FLAG_KEY;
1217 
1218  output_packet(of, &pkt, ost);
1219  } else
1220 #endif
1221  {
1222  int forced_keyframe = 0;
1223  double pts_time;
1224 
1226  ost->top_field_first >= 0)
1227  in_picture->top_field_first = !!ost->top_field_first;
1228 
1229  if (in_picture->interlaced_frame) {
1230  if (enc->codec->id == AV_CODEC_ID_MJPEG)
1231  mux_par->field_order = in_picture->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
1232  else
1233  mux_par->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
1234  } else
1235  mux_par->field_order = AV_FIELD_PROGRESSIVE;
1236 
1237  in_picture->quality = enc->global_quality;
1238  in_picture->pict_type = 0;
1239 
1240  pts_time = in_picture->pts != AV_NOPTS_VALUE ?
1241  in_picture->pts * av_q2d(enc->time_base) : NAN;
1242  if (ost->forced_kf_index < ost->forced_kf_count &&
1243  in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1244  ost->forced_kf_index++;
1245  forced_keyframe = 1;
1246  } else if (ost->forced_keyframes_pexpr) {
1247  double res;
1248  ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
1251  ff_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
1257  res);
1258  if (res) {
1259  forced_keyframe = 1;
1265  }
1266 
1268  } else if ( ost->forced_keyframes
1269  && !strncmp(ost->forced_keyframes, "source", 6)
1270  && in_picture->key_frame==1) {
1271  forced_keyframe = 1;
1272  }
1273 
1274  if (forced_keyframe) {
1275  in_picture->pict_type = AV_PICTURE_TYPE_I;
1276  av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
1277  }
1278 
1280  if (debug_ts) {
1281  av_log(NULL, AV_LOG_INFO, "encoder <- type:video "
1282  "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
1283  av_ts2str(in_picture->pts), av_ts2timestr(in_picture->pts, &enc->time_base),
1284  enc->time_base.num, enc->time_base.den);
1285  }
1286 
1287  ost->frames_encoded++;
1288 
1289  ret = avcodec_send_frame(enc, in_picture);
1290  if (ret < 0)
1291  goto error;
1292 
1293  while (1) {
1294  ret = avcodec_receive_packet(enc, &pkt);
1295  update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
1296  if (ret == AVERROR(EAGAIN))
1297  break;
1298  if (ret < 0)
1299  goto error;
1300 
1301  if (debug_ts) {
1302  av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
1303  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
1304  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &enc->time_base),
1305  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &enc->time_base));
1306  }
1307 
1308  if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & AV_CODEC_CAP_DELAY))
1309  pkt.pts = ost->sync_opts;
1310 
1311  av_packet_rescale_ts(&pkt, enc->time_base, ost->mux_timebase);
1312 
1313  if (debug_ts) {
1314  av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
1315  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
1316  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->mux_timebase),
1317  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->mux_timebase));
1318  }
1319 
1320  frame_size = pkt.size;
1321  output_packet(of, &pkt, ost);
1322 
1323  /* if two pass, output log */
1324  if (ost->logfile && enc->stats_out) {
1325  fprintf(ost->logfile, "%s", enc->stats_out);
1326  }
1327  }
1328  }
1329  ost->sync_opts++;
1330  /*
1331  * For video, number of frames in == number of packets out.
1332  * But there may be reordering, so we can't throw away frames on encoder
1333  * flush, we need to limit them here, before they go into encoder.
1334  */
1335  ost->frame_number++;
1336 
1337  if (vstats_filename && frame_size)
1338  do_video_stats(ost, frame_size);
1339  }
1340 
1341  if (!ost->last_frame)
1342  ost->last_frame = av_frame_alloc();
1343  av_frame_unref(ost->last_frame);
1344  if (next_picture && ost->last_frame)
1345  av_frame_ref(ost->last_frame, next_picture);
1346  else
1347  av_frame_free(&ost->last_frame);
1348 
1349  return;
1350 error:
1351  av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1352  exit_program(1);
1353 }
1354 
1355 static double psnr(double d)
1356 {
1357  return -10.0 * log10(d);
1358 }
1359 
1361 {
1362  AVCodecContext *enc;
1363  int frame_number;
1364  double ti1, bitrate, avg_bitrate;
1365 
1366  /* this is executed just the first time do_video_stats is called */
1367  if (!vstats_file) {
1368  vstats_file = fopen(vstats_filename, "w");
1369  if (!vstats_file) {
1370  perror("fopen");
1371  exit_program(1);
1372  }
1373  }
1374 
1375  enc = ost->enc_ctx;
1376  if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1377  frame_number = ost->st->nb_frames;
1378  if (vstats_version <= 1) {
1379  fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number,
1380  ost->quality / (float)FF_QP2LAMBDA);
1381  } else {
1382  fprintf(vstats_file, "out= %2d st= %2d frame= %5d q= %2.1f ", ost->file_index, ost->index, frame_number,
1383  ost->quality / (float)FF_QP2LAMBDA);
1384  }
1385 
1386  if (ost->error[0]>=0 && (enc->flags & AV_CODEC_FLAG_PSNR))
1387  fprintf(vstats_file, "PSNR= %6.2f ", psnr(ost->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1388 
1389  fprintf(vstats_file,"f_size= %6d ", frame_size);
1390  /* compute pts value */
1391  ti1 = av_stream_get_end_pts(ost->st) * av_q2d(ost->st->time_base);
1392  if (ti1 < 0.01)
1393  ti1 = 0.01;
1394 
1395  bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1396  avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
1397  fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1398  (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
1399  fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(ost->pict_type));
1400  }
1401 }
1402 
1403 static int init_output_stream(OutputStream *ost, char *error, int error_len);
1404 
1406 {
1407  OutputFile *of = output_files[ost->file_index];
1408  int i;
1409 
1411 
1412  if (of->shortest) {
1413  for (i = 0; i < of->ctx->nb_streams; i++)
1414  output_streams[of->ost_index + i]->finished = ENCODER_FINISHED | MUXER_FINISHED;
1415  }
1416 }
1417 
1418 /**
1419  * Get and encode new output from any of the filtergraphs, without causing
1420  * activity.
1421  *
1422  * @return 0 for success, <0 for severe errors
1423  */
1424 static int reap_filters(int flush)
1425 {
1426  AVFrame *filtered_frame = NULL;
1427  int i;
1428 
1429  /* Reap all buffers present in the buffer sinks */
1430  for (i = 0; i < nb_output_streams; i++) {
1431  OutputStream *ost = output_streams[i];
1432  OutputFile *of = output_files[ost->file_index];
1434  AVCodecContext *enc = ost->enc_ctx;
1435  int ret = 0;
1436 
1437  if (!ost->filter || !ost->filter->graph->graph)
1438  continue;
1439  filter = ost->filter->filter;
1440 
1441  if (!ost->initialized) {
1442  char error[1024] = "";
1443  ret = init_output_stream(ost, error, sizeof(error));
1444  if (ret < 0) {
1445  av_log(NULL, AV_LOG_ERROR, "Error initializing output stream %d:%d -- %s\n",
1446  ost->file_index, ost->index, error);
1447  exit_program(1);
1448  }
1449  }
1450 
1451  if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
1452  return AVERROR(ENOMEM);
1453  }
1454  filtered_frame = ost->filtered_frame;
1455 
1456  while (1) {
1457  double float_pts = AV_NOPTS_VALUE; // this is identical to filtered_frame.pts but with higher precision
1458  ret = av_buffersink_get_frame_flags(filter, filtered_frame,
1460  if (ret < 0) {
1461  if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1463  "Error in av_buffersink_get_frame_flags(): %s\n", av_err2str(ret));
1464  } else if (flush && ret == AVERROR_EOF) {
1466  do_video_out(of, ost, NULL, AV_NOPTS_VALUE);
1467  }
1468  break;
1469  }
1470  if (ost->finished) {
1471  av_frame_unref(filtered_frame);
1472  continue;
1473  }
1474  if (filtered_frame->pts != AV_NOPTS_VALUE) {
1475  int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1476  AVRational filter_tb = av_buffersink_get_time_base(filter);
1477  AVRational tb = enc->time_base;
1478  int extra_bits = av_clip(29 - av_log2(tb.den), 0, 16);
1479 
1480  tb.den <<= extra_bits;
1481  float_pts =
1482  av_rescale_q(filtered_frame->pts, filter_tb, tb) -
1483  av_rescale_q(start_time, AV_TIME_BASE_Q, tb);
1484  float_pts /= 1 << extra_bits;
1485  // 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
1486  float_pts += FFSIGN(float_pts) * 1.0 / (1<<17);
1487 
1488  filtered_frame->pts =
1489  av_rescale_q(filtered_frame->pts, filter_tb, enc->time_base) -
1490  av_rescale_q(start_time, AV_TIME_BASE_Q, enc->time_base);
1491  }
1492  //if (ost->source_index >= 0)
1493  // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1494 
1495  switch (av_buffersink_get_type(filter)) {
1496  case AVMEDIA_TYPE_VIDEO:
1497  if (!ost->frame_aspect_ratio.num)
1498  enc->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
1499 
1500  if (debug_ts) {
1501  av_log(NULL, AV_LOG_INFO, "filter -> pts:%s pts_time:%s exact:%f time_base:%d/%d\n",
1502  av_ts2str(filtered_frame->pts), av_ts2timestr(filtered_frame->pts, &enc->time_base),
1503  float_pts,
1504  enc->time_base.num, enc->time_base.den);
1505  }
1506 
1507  do_video_out(of, ost, filtered_frame, float_pts);
1508  break;
1509  case AVMEDIA_TYPE_AUDIO:
1510  if (!(enc->codec->capabilities & AV_CODEC_CAP_PARAM_CHANGE) &&
1511  enc->channels != av_frame_get_channels(filtered_frame)) {
1513  "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
1514  break;
1515  }
1516  do_audio_out(of, ost, filtered_frame);
1517  break;
1518  default:
1519  // TODO support subtitle filters
1520  av_assert0(0);
1521  }
1522 
1523  av_frame_unref(filtered_frame);
1524  }
1525  }
1526 
1527  return 0;
1528 }
1529 
1530 static void print_final_stats(int64_t total_size)
1531 {
1532  uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
1533  uint64_t subtitle_size = 0;
1534  uint64_t data_size = 0;
1535  float percent = -1.0;
1536  int i, j;
1537  int pass1_used = 1;
1538 
1539  for (i = 0; i < nb_output_streams; i++) {
1540  OutputStream *ost = output_streams[i];
1541  switch (ost->enc_ctx->codec_type) {
1542  case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
1543  case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
1544  case AVMEDIA_TYPE_SUBTITLE: subtitle_size += ost->data_size; break;
1545  default: other_size += ost->data_size; break;
1546  }
1547  extra_size += ost->enc_ctx->extradata_size;
1548  data_size += ost->data_size;
1551  pass1_used = 0;
1552  }
1553 
1554  if (data_size && total_size>0 && total_size >= data_size)
1555  percent = 100.0 * (total_size - data_size) / data_size;
1556 
1557  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: ",
1558  video_size / 1024.0,
1559  audio_size / 1024.0,
1560  subtitle_size / 1024.0,
1561  other_size / 1024.0,
1562  extra_size / 1024.0);
1563  if (percent >= 0.0)
1564  av_log(NULL, AV_LOG_INFO, "%f%%", percent);
1565  else
1566  av_log(NULL, AV_LOG_INFO, "unknown");
1567  av_log(NULL, AV_LOG_INFO, "\n");
1568 
1569  /* print verbose per-stream stats */
1570  for (i = 0; i < nb_input_files; i++) {
1571  InputFile *f = input_files[i];
1572  uint64_t total_packets = 0, total_size = 0;
1573 
1574  av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
1575  i, f->ctx->filename);
1576 
1577  for (j = 0; j < f->nb_streams; j++) {
1578  InputStream *ist = input_streams[f->ist_index + j];
1579  enum AVMediaType type = ist->dec_ctx->codec_type;
1580 
1581  total_size += ist->data_size;
1582  total_packets += ist->nb_packets;
1583 
1584  av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
1585  i, j, media_type_string(type));
1586  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
1587  ist->nb_packets, ist->data_size);
1588 
1589  if (ist->decoding_needed) {
1590  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
1591  ist->frames_decoded);
1592  if (type == AVMEDIA_TYPE_AUDIO)
1593  av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
1594  av_log(NULL, AV_LOG_VERBOSE, "; ");
1595  }
1596 
1597  av_log(NULL, AV_LOG_VERBOSE, "\n");
1598  }
1599 
1600  av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
1601  total_packets, total_size);
1602  }
1603 
1604  for (i = 0; i < nb_output_files; i++) {
1605  OutputFile *of = output_files[i];
1606  uint64_t total_packets = 0, total_size = 0;
1607 
1608  av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
1609  i, of->ctx->filename);
1610 
1611  for (j = 0; j < of->ctx->nb_streams; j++) {
1612  OutputStream *ost = output_streams[of->ost_index + j];
1613  enum AVMediaType type = ost->enc_ctx->codec_type;
1614 
1615  total_size += ost->data_size;
1616  total_packets += ost->packets_written;
1617 
1618  av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
1619  i, j, media_type_string(type));
1620  if (ost->encoding_needed) {
1621  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
1622  ost->frames_encoded);
1623  if (type == AVMEDIA_TYPE_AUDIO)
1624  av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
1625  av_log(NULL, AV_LOG_VERBOSE, "; ");
1626  }
1627 
1628  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
1629  ost->packets_written, ost->data_size);
1630 
1631  av_log(NULL, AV_LOG_VERBOSE, "\n");
1632  }
1633 
1634  av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
1635  total_packets, total_size);
1636  }
1637  if(video_size + data_size + audio_size + subtitle_size + extra_size == 0){
1638  av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded ");
1639  if (pass1_used) {
1640  av_log(NULL, AV_LOG_WARNING, "\n");
1641  } else {
1642  av_log(NULL, AV_LOG_WARNING, "(check -ss / -t / -frames parameters if used)\n");
1643  }
1644  }
1645 }
1646 
1647 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1648 {
1649  char buf[1024];
1650  AVBPrint buf_script;
1651  OutputStream *ost;
1652  AVFormatContext *oc;
1653  int64_t total_size;
1654  AVCodecContext *enc;
1655  int frame_number, vid, i;
1656  double bitrate;
1657  double speed;
1658  int64_t pts = INT64_MIN + 1;
1659  static int64_t last_time = -1;
1660  static int qp_histogram[52];
1661  int hours, mins, secs, us;
1662  int ret;
1663  float t;
1664 
1665  if (!print_stats && !is_last_report && !progress_avio)
1666  return;
1667 
1668  if (!is_last_report) {
1669  if (last_time == -1) {
1670  last_time = cur_time;
1671  return;
1672  }
1673  if ((cur_time - last_time) < 500000)
1674  return;
1675  last_time = cur_time;
1676  }
1677 
1678  t = (cur_time-timer_start) / 1000000.0;
1679 
1680 
1681  oc = output_files[0]->ctx;
1682 
1683  total_size = avio_size(oc->pb);
1684  if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
1685  total_size = avio_tell(oc->pb);
1686 
1687  buf[0] = '\0';
1688  vid = 0;
1689  av_bprint_init(&buf_script, 0, 1);
1690  for (i = 0; i < nb_output_streams; i++) {
1691  float q = -1;
1692  ost = output_streams[i];
1693  enc = ost->enc_ctx;
1694  if (!ost->stream_copy)
1695  q = ost->quality / (float) FF_QP2LAMBDA;
1696 
1697  if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1698  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1699  av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1700  ost->file_index, ost->index, q);
1701  }
1702  if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1703  float fps;
1704 
1705  frame_number = ost->frame_number;
1706  fps = t > 1 ? frame_number / t : 0;
1707  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
1708  frame_number, fps < 9.95, fps, q);
1709  av_bprintf(&buf_script, "frame=%d\n", frame_number);
1710  av_bprintf(&buf_script, "fps=%.1f\n", fps);
1711  av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1712  ost->file_index, ost->index, q);
1713  if (is_last_report)
1714  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1715  if (qp_hist) {
1716  int j;
1717  int qp = lrintf(q);
1718  if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1719  qp_histogram[qp]++;
1720  for (j = 0; j < 32; j++)
1721  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", av_log2(qp_histogram[j] + 1));
1722  }
1723 
1724  if ((enc->flags & AV_CODEC_FLAG_PSNR) && (ost->pict_type != AV_PICTURE_TYPE_NONE || is_last_report)) {
1725  int j;
1726  double error, error_sum = 0;
1727  double scale, scale_sum = 0;
1728  double p;
1729  char type[3] = { 'Y','U','V' };
1730  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1731  for (j = 0; j < 3; j++) {
1732  if (is_last_report) {
1733  error = enc->error[j];
1734  scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1735  } else {
1736  error = ost->error[j];
1737  scale = enc->width * enc->height * 255.0 * 255.0;
1738  }
1739  if (j)
1740  scale /= 4;
1741  error_sum += error;
1742  scale_sum += scale;
1743  p = psnr(error / scale);
1744  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
1745  av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1746  ost->file_index, ost->index, type[j] | 32, p);
1747  }
1748  p = psnr(error_sum / scale_sum);
1749  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1750  av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1751  ost->file_index, ost->index, p);
1752  }
1753  vid = 1;
1754  }
1755  /* compute min output value */
1757  pts = FFMAX(pts, av_rescale_q(av_stream_get_end_pts(ost->st),
1758  ost->st->time_base, AV_TIME_BASE_Q));
1759  if (is_last_report)
1760  nb_frames_drop += ost->last_dropped;
1761  }
1762 
1763  secs = FFABS(pts) / AV_TIME_BASE;
1764  us = FFABS(pts) % AV_TIME_BASE;
1765  mins = secs / 60;
1766  secs %= 60;
1767  hours = mins / 60;
1768  mins %= 60;
1769 
1770  bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
1771  speed = t != 0.0 ? (double)pts / AV_TIME_BASE / t : -1;
1772 
1773  if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1774  "size=N/A time=");
1775  else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1776  "size=%8.0fkB time=", total_size / 1024.0);
1777  if (pts < 0)
1778  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "-");
1779  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1780  "%02d:%02d:%02d.%02d ", hours, mins, secs,
1781  (100 * us) / AV_TIME_BASE);
1782 
1783  if (bitrate < 0) {
1784  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),"bitrate=N/A");
1785  av_bprintf(&buf_script, "bitrate=N/A\n");
1786  }else{
1787  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),"bitrate=%6.1fkbits/s", bitrate);
1788  av_bprintf(&buf_script, "bitrate=%6.1fkbits/s\n", bitrate);
1789  }
1790 
1791  if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
1792  else av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1793  av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1794  av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
1795  hours, mins, secs, us);
1796 
1798  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1800  av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1801  av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1802 
1803  if (speed < 0) {
1804  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf)," speed=N/A");
1805  av_bprintf(&buf_script, "speed=N/A\n");
1806  } else {
1807  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf)," speed=%4.3gx", speed);
1808  av_bprintf(&buf_script, "speed=%4.3gx\n", speed);
1809  }
1810 
1811  if (print_stats || is_last_report) {
1812  const char end = is_last_report ? '\n' : '\r';
1813  if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
1814  fprintf(stderr, "%s %c", buf, end);
1815  } else
1816  av_log(NULL, AV_LOG_INFO, "%s %c", buf, end);
1817 
1818  fflush(stderr);
1819  }
1820 
1821  if (progress_avio) {
1822  av_bprintf(&buf_script, "progress=%s\n",
1823  is_last_report ? "end" : "continue");
1824  avio_write(progress_avio, buf_script.str,
1825  FFMIN(buf_script.len, buf_script.size - 1));
1826  avio_flush(progress_avio);
1827  av_bprint_finalize(&buf_script, NULL);
1828  if (is_last_report) {
1829  if ((ret = avio_closep(&progress_avio)) < 0)
1831  "Error closing progress log, loss of information possible: %s\n", av_err2str(ret));
1832  }
1833  }
1834 
1835  if (is_last_report)
1836  print_final_stats(total_size);
1837 }
1838 
1839 static void flush_encoders(void)
1840 {
1841  int i, ret;
1842 
1843  for (i = 0; i < nb_output_streams; i++) {
1844  OutputStream *ost = output_streams[i];
1845  AVCodecContext *enc = ost->enc_ctx;
1846  OutputFile *of = output_files[ost->file_index];
1847 
1848  if (!ost->encoding_needed)
1849  continue;
1850 
1851  // Try to enable encoding with no input frames.
1852  // Maybe we should just let encoding fail instead.
1853  if (!ost->initialized) {
1854  FilterGraph *fg = ost->filter->graph;
1855  char error[1024] = "";
1856 
1858  "Finishing stream %d:%d without any data written to it.\n",
1859  ost->file_index, ost->st->index);
1860 
1861  if (ost->filter && !fg->graph) {
1862  int x;
1863  for (x = 0; x < fg->nb_inputs; x++) {
1864  InputFilter *ifilter = fg->inputs[x];
1865  if (ifilter->format < 0) {
1866  AVCodecParameters *par = ifilter->ist->st->codecpar;
1867  // We never got any input. Set a fake format, which will
1868  // come from libavformat.
1869  ifilter->format = par->format;
1870  ifilter->sample_rate = par->sample_rate;
1871  ifilter->channels = par->channels;
1872  ifilter->channel_layout = par->channel_layout;
1873  ifilter->width = par->width;
1874  ifilter->height = par->height;
1875  ifilter->sample_aspect_ratio = par->sample_aspect_ratio;
1876  }
1877  }
1878 
1880  continue;
1881 
1882  ret = configure_filtergraph(fg);
1883  if (ret < 0) {
1884  av_log(NULL, AV_LOG_ERROR, "Error configuring filter graph\n");
1885  exit_program(1);
1886  }
1887 
1888  finish_output_stream(ost);
1889  }
1890 
1891  ret = init_output_stream(ost, error, sizeof(error));
1892  if (ret < 0) {
1893  av_log(NULL, AV_LOG_ERROR, "Error initializing output stream %d:%d -- %s\n",
1894  ost->file_index, ost->index, error);
1895  exit_program(1);
1896  }
1897  }
1898 
1899  if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1900  continue;
1901 #if FF_API_LAVF_FMT_RAWPICTURE
1902  if (enc->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
1903  continue;
1904 #endif
1905 
1907  continue;
1908 
1909  for (;;) {
1910  const char *desc = NULL;
1911  AVPacket pkt;
1912  int pkt_size;
1913 
1914  switch (enc->codec_type) {
1915  case AVMEDIA_TYPE_AUDIO:
1916  desc = "audio";
1917  break;
1918  case AVMEDIA_TYPE_VIDEO:
1919  desc = "video";
1920  break;
1921  default:
1922  av_assert0(0);
1923  }
1924 
1925  av_init_packet(&pkt);
1926  pkt.data = NULL;
1927  pkt.size = 0;
1928 
1930 
1931  while ((ret = avcodec_receive_packet(enc, &pkt)) == AVERROR(EAGAIN)) {
1932  ret = avcodec_send_frame(enc, NULL);
1933  if (ret < 0) {
1934  av_log(NULL, AV_LOG_FATAL, "%s encoding failed: %s\n",
1935  desc,
1936  av_err2str(ret));
1937  exit_program(1);
1938  }
1939  }
1940 
1941  update_benchmark("flush_%s %d.%d", desc, ost->file_index, ost->index);
1942  if (ret < 0 && ret != AVERROR_EOF) {
1943  av_log(NULL, AV_LOG_FATAL, "%s encoding failed: %s\n",
1944  desc,
1945  av_err2str(ret));
1946  exit_program(1);
1947  }
1948  if (ost->logfile && enc->stats_out) {
1949  fprintf(ost->logfile, "%s", enc->stats_out);
1950  }
1951  if (ret == AVERROR_EOF) {
1952  break;
1953  }
1954  if (ost->finished & MUXER_FINISHED) {
1955  av_packet_unref(&pkt);
1956  continue;
1957  }
1958  av_packet_rescale_ts(&pkt, enc->time_base, ost->mux_timebase);
1959  pkt_size = pkt.size;
1960  output_packet(of, &pkt, ost);
1962  do_video_stats(ost, pkt_size);
1963  }
1964  }
1965  }
1966 }
1967 
1968 /*
1969  * Check whether a packet from ist should be written into ost at this time
1970  */
1972 {
1973  OutputFile *of = output_files[ost->file_index];
1974  int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1975 
1976  if (ost->source_index != ist_index)
1977  return 0;
1978 
1979  if (ost->finished)
1980  return 0;
1981 
1982  if (of->start_time != AV_NOPTS_VALUE && ist->pts < of->start_time)
1983  return 0;
1984 
1985  return 1;
1986 }
1987 
1988 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1989 {
1990  OutputFile *of = output_files[ost->file_index];
1991  InputFile *f = input_files [ist->file_index];
1992  int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1993  int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->mux_timebase);
1994  AVPicture pict;
1995  AVPacket opkt;
1996 
1997  av_init_packet(&opkt);
1998 
1999  if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
2001  return;
2002 
2003  if (!ost->frame_number && !ost->copy_prior_start) {
2004  int64_t comp_start = start_time;
2005  if (copy_ts && f->start_time != AV_NOPTS_VALUE)
2006  comp_start = FFMAX(start_time, f->start_time + f->ts_offset);
2007  if (pkt->pts == AV_NOPTS_VALUE ?
2008  ist->pts < comp_start :
2009  pkt->pts < av_rescale_q(comp_start, AV_TIME_BASE_Q, ist->st->time_base))
2010  return;
2011  }
2012 
2013  if (of->recording_time != INT64_MAX &&
2014  ist->pts >= of->recording_time + start_time) {
2015  close_output_stream(ost);
2016  return;
2017  }
2018 
2019  if (f->recording_time != INT64_MAX) {
2020  start_time = f->ctx->start_time;
2021  if (f->start_time != AV_NOPTS_VALUE && copy_ts)
2022  start_time += f->start_time;
2023  if (ist->pts >= f->recording_time + start_time) {
2024  close_output_stream(ost);
2025  return;
2026  }
2027  }
2028 
2029  /* force the input stream PTS */
2030  if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
2031  ost->sync_opts++;
2032 
2033  if (pkt->pts != AV_NOPTS_VALUE)
2034  opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->mux_timebase) - ost_tb_start_time;
2035  else
2036  opkt.pts = AV_NOPTS_VALUE;
2037 
2038  if (pkt->dts == AV_NOPTS_VALUE)
2039  opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->mux_timebase);
2040  else
2041  opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->mux_timebase);
2042  opkt.dts -= ost_tb_start_time;
2043 
2044  if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
2046  if(!duration)
2047  duration = ist->dec_ctx->frame_size;
2048  opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
2049  (AVRational){1, ist->dec_ctx->sample_rate}, duration, &ist->filter_in_rescale_delta_last,
2050  ost->mux_timebase) - ost_tb_start_time;
2051  }
2052 
2053  opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->mux_timebase);
2054 
2055  opkt.flags = pkt->flags;
2056  // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
2057  if ( ost->st->codecpar->codec_id != AV_CODEC_ID_H264
2060  && ost->st->codecpar->codec_id != AV_CODEC_ID_VC1
2061  ) {
2062  int ret = av_parser_change(ost->parser, ost->parser_avctx,
2063  &opkt.data, &opkt.size,
2064  pkt->data, pkt->size,
2065  pkt->flags & AV_PKT_FLAG_KEY);
2066  if (ret < 0) {
2067  av_log(NULL, AV_LOG_FATAL, "av_parser_change failed: %s\n",
2068  av_err2str(ret));
2069  exit_program(1);
2070  }
2071  if (ret) {
2072  opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
2073  if (!opkt.buf)
2074  exit_program(1);
2075  }
2076  } else {
2077  opkt.data = pkt->data;
2078  opkt.size = pkt->size;
2079  }
2080  av_copy_packet_side_data(&opkt, pkt);
2081 
2082 #if FF_API_LAVF_FMT_RAWPICTURE
2083  if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
2085  (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
2086  /* store AVPicture in AVPacket, as expected by the output format */
2087  int ret = avpicture_fill(&pict, opkt.data, ost->st->codecpar->format, ost->st->codecpar->width, ost->st->codecpar->height);
2088  if (ret < 0) {
2089  av_log(NULL, AV_LOG_FATAL, "avpicture_fill failed: %s\n",
2090  av_err2str(ret));
2091  exit_program(1);
2092  }
2093  opkt.data = (uint8_t *)&pict;
2094  opkt.size = sizeof(AVPicture);
2095  opkt.flags |= AV_PKT_FLAG_KEY;
2096  }
2097 #endif
2098 
2099  output_packet(of, &opkt, ost);
2100 }
2101 
2103 {
2104  AVCodecContext *dec = ist->dec_ctx;
2105 
2106  if (!dec->channel_layout) {
2107  char layout_name[256];
2108 
2109  if (dec->channels > ist->guess_layout_max)
2110  return 0;
2112  if (!dec->channel_layout)
2113  return 0;
2114  av_get_channel_layout_string(layout_name, sizeof(layout_name),
2115  dec->channels, dec->channel_layout);
2116  av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
2117  "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
2118  }
2119  return 1;
2120 }
2121 
2122 static void check_decode_result(InputStream *ist, int *got_output, int ret)
2123 {
2124  if (*got_output || ret<0)
2125  decode_error_stat[ret<0] ++;
2126 
2127  if (ret < 0 && exit_on_error)
2128  exit_program(1);
2129 
2130  if (exit_on_error && *got_output && ist) {
2132  av_log(NULL, AV_LOG_FATAL, "%s: corrupt decoded frame in stream %d\n", input_files[ist->file_index]->ctx->filename, ist->st->index);
2133  exit_program(1);
2134  }
2135  }
2136 }
2137 
2138 // Filters can be configured only if the formats of all inputs are known.
2140 {
2141  int i;
2142  for (i = 0; i < fg->nb_inputs; i++) {
2143  if (fg->inputs[i]->format < 0 && (fg->inputs[i]->type == AVMEDIA_TYPE_AUDIO ||
2144  fg->inputs[i]->type == AVMEDIA_TYPE_VIDEO))
2145  return 0;
2146  }
2147  return 1;
2148 }
2149 
2151 {
2152  FilterGraph *fg = ifilter->graph;
2153  int need_reinit, ret, i;
2154 
2155  /* determine if the parameters for this input changed */
2156  need_reinit = ifilter->format != frame->format;
2157 
2158  switch (ifilter->ist->st->codecpar->codec_type) {
2159  case AVMEDIA_TYPE_AUDIO:
2160  need_reinit |= ifilter->sample_rate != frame->sample_rate ||
2161  ifilter->channels != frame->channels ||
2162  ifilter->channel_layout != frame->channel_layout;
2163  break;
2164  case AVMEDIA_TYPE_VIDEO:
2165  need_reinit |= ifilter->width != frame->width ||
2166  ifilter->height != frame->height;
2167  break;
2168  }
2169 
2170  if (!ifilter->ist->reinit_filters && fg->graph)
2171  need_reinit = 0;
2172 
2173  if (!!ifilter->hw_frames_ctx != !!frame->hw_frames_ctx ||
2174  (ifilter->hw_frames_ctx && ifilter->hw_frames_ctx->data != frame->hw_frames_ctx->data))
2175  need_reinit = 1;
2176 
2177  if (need_reinit) {
2178  ret = ifilter_parameters_from_frame(ifilter, frame);
2179  if (ret < 0)
2180  return ret;
2181  }
2182 
2183  /* (re)init the graph if possible, otherwise buffer the frame and return */
2184  if (need_reinit || !fg->graph) {
2185  for (i = 0; i < fg->nb_inputs; i++) {
2186  if (!ifilter_has_all_input_formats(fg)) {
2187  AVFrame *tmp = av_frame_clone(frame);
2188  if (!tmp)
2189  return AVERROR(ENOMEM);
2190  av_frame_unref(frame);
2191 
2192  if (!av_fifo_space(ifilter->frame_queue)) {
2193  ret = av_fifo_realloc2(ifilter->frame_queue, 2 * av_fifo_size(ifilter->frame_queue));
2194  if (ret < 0) {
2195  av_frame_free(&tmp);
2196  return ret;
2197  }
2198  }
2199  av_fifo_generic_write(ifilter->frame_queue, &tmp, sizeof(tmp), NULL);
2200  return 0;
2201  }
2202  }
2203 
2204  ret = reap_filters(1);
2205  if (ret < 0 && ret != AVERROR_EOF) {
2206  char errbuf[128];
2207  av_strerror(ret, errbuf, sizeof(errbuf));
2208 
2209  av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
2210  return ret;
2211  }
2212 
2213  ret = configure_filtergraph(fg);
2214  if (ret < 0) {
2215  av_log(NULL, AV_LOG_ERROR, "Error reinitializing filters!\n");
2216  return ret;
2217  }
2218  }
2219 
2221  if (ret < 0) {
2222  av_log(NULL, AV_LOG_ERROR, "Error while filtering\n");
2223  return ret;
2224  }
2225 
2226  return 0;
2227 }
2228 
2229 static int ifilter_send_eof(InputFilter *ifilter)
2230 {
2231  int i, j, ret;
2232 
2233  ifilter->eof = 1;
2234 
2235  if (ifilter->filter) {
2237  if (ret < 0)
2238  return ret;
2239  } else {
2240  // the filtergraph was never configured
2241  FilterGraph *fg = ifilter->graph;
2242  for (i = 0; i < fg->nb_inputs; i++)
2243  if (!fg->inputs[i]->eof)
2244  break;
2245  if (i == fg->nb_inputs) {
2246  // All the input streams have finished without the filtergraph
2247  // ever being configured.
2248  // Mark the output streams as finished.
2249  for (j = 0; j < fg->nb_outputs; j++)
2250  finish_output_stream(fg->outputs[j]->ost);
2251  }
2252  }
2253 
2254  return 0;
2255 }
2256 
2257 // This does not quite work like avcodec_decode_audio4/avcodec_decode_video2.
2258 // There is the following difference: if you got a frame, you must call
2259 // it again with pkt=NULL. pkt==NULL is treated differently from pkt.size==0
2260 // (pkt==NULL means get more output, pkt.size==0 is a flush/drain packet)
2261 static int decode(AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *pkt)
2262 {
2263  int ret;
2264 
2265  *got_frame = 0;
2266 
2267  if (pkt) {
2268  ret = avcodec_send_packet(avctx, pkt);
2269  // In particular, we don't expect AVERROR(EAGAIN), because we read all
2270  // decoded frames with avcodec_receive_frame() until done.
2271  if (ret < 0 && ret != AVERROR_EOF)
2272  return ret;
2273  }
2274 
2275  ret = avcodec_receive_frame(avctx, frame);
2276  if (ret < 0 && ret != AVERROR(EAGAIN))
2277  return ret;
2278  if (ret >= 0)
2279  *got_frame = 1;
2280 
2281  return 0;
2282 }
2283 
2284 static int send_frame_to_filters(InputStream *ist, AVFrame *decoded_frame)
2285 {
2286  int i, ret;
2287  AVFrame *f;
2288 
2289  av_assert1(ist->nb_filters > 0); /* ensure ret is initialized */
2290  for (i = 0; i < ist->nb_filters; i++) {
2291  if (i < ist->nb_filters - 1) {
2292  f = ist->filter_frame;
2293  ret = av_frame_ref(f, decoded_frame);
2294  if (ret < 0)
2295  break;
2296  } else
2297  f = decoded_frame;
2298  ret = ifilter_send_frame(ist->filters[i], f);
2299  if (ret == AVERROR_EOF)
2300  ret = 0; /* ignore */
2301  if (ret < 0) {
2303  "Failed to inject frame into filter network: %s\n", av_err2str(ret));
2304  break;
2305  }
2306  }
2307  return ret;
2308 }
2309 
2310 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output,
2311  int *decode_failed)
2312 {
2313  AVFrame *decoded_frame;
2314  AVCodecContext *avctx = ist->dec_ctx;
2315  int ret, err = 0;
2316  AVRational decoded_frame_tb;
2317 
2318  if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
2319  return AVERROR(ENOMEM);
2320  if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
2321  return AVERROR(ENOMEM);
2322  decoded_frame = ist->decoded_frame;
2323 
2325  ret = decode(avctx, decoded_frame, got_output, pkt);
2326  update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
2327  if (ret < 0)
2328  *decode_failed = 1;
2329 
2330  if (ret >= 0 && avctx->sample_rate <= 0) {
2331  av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
2332  ret = AVERROR_INVALIDDATA;
2333  }
2334 
2335  if (ret != AVERROR_EOF)
2336  check_decode_result(ist, got_output, ret);
2337 
2338  if (!*got_output || ret < 0)
2339  return ret;
2340 
2341  ist->samples_decoded += decoded_frame->nb_samples;
2342  ist->frames_decoded++;
2343 
2344 #if 1
2345  /* increment next_dts to use for the case where the input stream does not
2346  have timestamps or there are multiple frames in the packet */
2347  ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
2348  avctx->sample_rate;
2349  ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
2350  avctx->sample_rate;
2351 #endif
2352 
2353  if (decoded_frame->pts != AV_NOPTS_VALUE) {
2354  decoded_frame_tb = ist->st->time_base;
2355  } else if (pkt && pkt->pts != AV_NOPTS_VALUE) {
2356  decoded_frame->pts = pkt->pts;
2357  decoded_frame_tb = ist->st->time_base;
2358  }else {
2359  decoded_frame->pts = ist->dts;
2360  decoded_frame_tb = AV_TIME_BASE_Q;
2361  }
2362  if (decoded_frame->pts != AV_NOPTS_VALUE)
2363  decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
2364  (AVRational){1, avctx->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
2365  (AVRational){1, avctx->sample_rate});
2366  ist->nb_samples = decoded_frame->nb_samples;
2367  err = send_frame_to_filters(ist, decoded_frame);
2368 
2370  av_frame_unref(decoded_frame);
2371  return err < 0 ? err : ret;
2372 }
2373 
2374 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output, int eof,
2375  int *decode_failed)
2376 {
2377  AVFrame *decoded_frame;
2378  int i, ret = 0, err = 0;
2379  int64_t best_effort_timestamp;
2380  int64_t dts = AV_NOPTS_VALUE;
2381  AVPacket avpkt;
2382 
2383  // With fate-indeo3-2, we're getting 0-sized packets before EOF for some
2384  // reason. This seems like a semi-critical bug. Don't trigger EOF, and
2385  // skip the packet.
2386  if (!eof && pkt && pkt->size == 0)
2387  return 0;
2388 
2389  if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
2390  return AVERROR(ENOMEM);
2391  if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
2392  return AVERROR(ENOMEM);
2393  decoded_frame = ist->decoded_frame;
2394  if (ist->dts != AV_NOPTS_VALUE)
2395  dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
2396  if (pkt) {
2397  avpkt = *pkt;
2398  avpkt.dts = dts; // ffmpeg.c probably shouldn't do this
2399  }
2400 
2401  // The old code used to set dts on the drain packet, which does not work
2402  // with the new API anymore.
2403  if (eof) {
2404  void *new = av_realloc_array(ist->dts_buffer, ist->nb_dts_buffer + 1, sizeof(ist->dts_buffer[0]));
2405  if (!new)
2406  return AVERROR(ENOMEM);
2407  ist->dts_buffer = new;
2408  ist->dts_buffer[ist->nb_dts_buffer++] = dts;
2409  }
2410 
2412  ret = decode(ist->dec_ctx, decoded_frame, got_output, pkt ? &avpkt : NULL);
2413  update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
2414  if (ret < 0)
2415  *decode_failed = 1;
2416 
2417  // The following line may be required in some cases where there is no parser
2418  // or the parser does not has_b_frames correctly
2419  if (ist->st->codecpar->video_delay < ist->dec_ctx->has_b_frames) {
2420  if (ist->dec_ctx->codec_id == AV_CODEC_ID_H264) {
2421  ist->st->codecpar->video_delay = ist->dec_ctx->has_b_frames;
2422  } else
2424  "video_delay is larger in decoder than demuxer %d > %d.\n"
2425  "If you want to help, upload a sample "
2426  "of this file to ftp://upload.ffmpeg.org/incoming/ "
2427  "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n",
2428  ist->dec_ctx->has_b_frames,
2429  ist->st->codecpar->video_delay);
2430  }
2431 
2432  if (ret != AVERROR_EOF)
2433  check_decode_result(ist, got_output, ret);
2434 
2435  if (*got_output && ret >= 0) {
2436  if (ist->dec_ctx->width != decoded_frame->width ||
2437  ist->dec_ctx->height != decoded_frame->height ||
2438  ist->dec_ctx->pix_fmt != decoded_frame->format) {
2439  av_log(NULL, AV_LOG_DEBUG, "Frame parameters mismatch context %d,%d,%d != %d,%d,%d\n",
2440  decoded_frame->width,
2441  decoded_frame->height,
2442  decoded_frame->format,
2443  ist->dec_ctx->width,
2444  ist->dec_ctx->height,
2445  ist->dec_ctx->pix_fmt);
2446  }
2447  }
2448 
2449  if (!*got_output || ret < 0)
2450  return ret;
2451 
2452  if(ist->top_field_first>=0)
2453  decoded_frame->top_field_first = ist->top_field_first;
2454 
2455  ist->frames_decoded++;
2456 
2457  if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
2458  err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
2459  if (err < 0)
2460  goto fail;
2461  }
2462  ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
2463 
2464  best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
2465 
2466  if (ist->framerate.num)
2467  best_effort_timestamp = ist->cfr_next_pts++;
2468 
2469  if (eof && best_effort_timestamp == AV_NOPTS_VALUE && ist->nb_dts_buffer > 0) {
2470  best_effort_timestamp = ist->dts_buffer[0];
2471 
2472  for (i = 0; i < ist->nb_dts_buffer - 1; i++)
2473  ist->dts_buffer[i] = ist->dts_buffer[i + 1];
2474  ist->nb_dts_buffer--;
2475  }
2476 
2477  if(best_effort_timestamp != AV_NOPTS_VALUE) {
2478  int64_t ts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
2479 
2480  if (ts != AV_NOPTS_VALUE)
2481  ist->next_pts = ist->pts = ts;
2482  }
2483 
2484  if (debug_ts) {
2485  av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
2486  "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",
2487  ist->st->index, av_ts2str(decoded_frame->pts),
2488  av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
2489  best_effort_timestamp,
2490  av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
2491  decoded_frame->key_frame, decoded_frame->pict_type,
2492  ist->st->time_base.num, ist->st->time_base.den);
2493  }
2494 
2495  if (ist->st->sample_aspect_ratio.num)
2496  decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
2497 
2498  err = send_frame_to_filters(ist, decoded_frame);
2499 
2500 fail:
2502  av_frame_unref(decoded_frame);
2503  return err < 0 ? err : ret;
2504 }
2505 
2506 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output,
2507  int *decode_failed)
2508 {
2509  AVSubtitle subtitle;
2510  int free_sub = 1;
2511  int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
2512  &subtitle, got_output, pkt);
2513 
2514  check_decode_result(NULL, got_output, ret);
2515 
2516  if (ret < 0 || !*got_output) {
2517  *decode_failed = 1;
2518  if (!pkt->size)
2519  sub2video_flush(ist);
2520  return ret;
2521  }
2522 
2523  if (ist->fix_sub_duration) {
2524  int end = 1;
2525  if (ist->prev_sub.got_output) {
2526  end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
2527  1000, AV_TIME_BASE);
2528  if (end < ist->prev_sub.subtitle.end_display_time) {
2529  av_log(ist->dec_ctx, AV_LOG_DEBUG,
2530  "Subtitle duration reduced from %"PRId32" to %d%s\n",
2532  end <= 0 ? ", dropping it" : "");
2534  }
2535  }
2536  FFSWAP(int, *got_output, ist->prev_sub.got_output);
2537  FFSWAP(int, ret, ist->prev_sub.ret);
2538  FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
2539  if (end <= 0)
2540  goto out;
2541  }
2542 
2543  if (!*got_output)
2544  return ret;
2545 
2546  if (ist->sub2video.frame) {
2547  sub2video_update(ist, &subtitle);
2548  } else if (ist->nb_filters) {
2549  if (!ist->sub2video.sub_queue)
2550  ist->sub2video.sub_queue = av_fifo_alloc(8 * sizeof(AVSubtitle));
2551  if (!ist->sub2video.sub_queue)
2552  exit_program(1);
2553  if (!av_fifo_space(ist->sub2video.sub_queue)) {
2555  if (ret < 0)
2556  exit_program(1);
2557  }
2558  av_fifo_generic_write(ist->sub2video.sub_queue, &subtitle, sizeof(subtitle), NULL);
2559  free_sub = 0;
2560  }
2561 
2562  if (!subtitle.num_rects)
2563  goto out;
2564 
2565  ist->frames_decoded++;
2566 
2567  for (i = 0; i < nb_output_streams; i++) {
2568  OutputStream *ost = output_streams[i];
2569 
2570  if (!check_output_constraints(ist, ost) || !ost->encoding_needed
2571  || ost->enc->type != AVMEDIA_TYPE_SUBTITLE)
2572  continue;
2573 
2574  do_subtitle_out(output_files[ost->file_index], ost, &subtitle);
2575  }
2576 
2577 out:
2578  if (free_sub)
2579  avsubtitle_free(&subtitle);
2580  return ret;
2581 }
2582 
2584 {
2585  int i, ret;
2586  for (i = 0; i < ist->nb_filters; i++) {
2587  ret = ifilter_send_eof(ist->filters[i]);
2588  if (ret < 0)
2589  return ret;
2590  }
2591  return 0;
2592 }
2593 
2594 /* pkt = NULL means EOF (needed to flush decoder buffers) */
2595 static int process_input_packet(InputStream *ist, const AVPacket *pkt, int no_eof)
2596 {
2597  int ret = 0, i;
2598  int repeating = 0;
2599  int eof_reached = 0;
2600 
2601  AVPacket avpkt;
2602  if (!ist->saw_first_ts) {
2603  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;
2604  ist->pts = 0;
2605  if (pkt && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
2606  ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
2607  ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
2608  }
2609  ist->saw_first_ts = 1;
2610  }
2611 
2612  if (ist->next_dts == AV_NOPTS_VALUE)
2613  ist->next_dts = ist->dts;
2614  if (ist->next_pts == AV_NOPTS_VALUE)
2615  ist->next_pts = ist->pts;
2616 
2617  if (!pkt) {
2618  /* EOF handling */
2619  av_init_packet(&avpkt);
2620  avpkt.data = NULL;
2621  avpkt.size = 0;
2622  } else {
2623  avpkt = *pkt;
2624  }
2625 
2626  if (pkt && pkt->dts != AV_NOPTS_VALUE) {
2627  ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
2628  if (ist->dec_ctx->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
2629  ist->next_pts = ist->pts = ist->dts;
2630  }
2631 
2632  // while we have more to decode or while the decoder did output something on EOF
2633  while (ist->decoding_needed) {
2634  int duration = 0;
2635  int got_output = 0;
2636  int decode_failed = 0;
2637 
2638  ist->pts = ist->next_pts;
2639  ist->dts = ist->next_dts;
2640 
2641  switch (ist->dec_ctx->codec_type) {
2642  case AVMEDIA_TYPE_AUDIO:
2643  ret = decode_audio (ist, repeating ? NULL : &avpkt, &got_output,
2644  &decode_failed);
2645  break;
2646  case AVMEDIA_TYPE_VIDEO:
2647  ret = decode_video (ist, repeating ? NULL : &avpkt, &got_output, !pkt,
2648  &decode_failed);
2649  if (!repeating || !pkt || got_output) {
2650  if (pkt && pkt->duration) {
2651  duration = av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
2652  } else if(ist->dec_ctx->framerate.num != 0 && ist->dec_ctx->framerate.den != 0) {
2654  duration = ((int64_t)AV_TIME_BASE *
2655  ist->dec_ctx->framerate.den * ticks) /
2657  }
2658 
2659  if(ist->dts != AV_NOPTS_VALUE && duration) {
2660  ist->next_dts += duration;
2661  }else
2662  ist->next_dts = AV_NOPTS_VALUE;
2663  }
2664 
2665  if (got_output)
2666  ist->next_pts += duration; //FIXME the duration is not correct in some cases
2667  break;
2668  case AVMEDIA_TYPE_SUBTITLE:
2669  if (repeating)
2670  break;
2671  ret = transcode_subtitles(ist, &avpkt, &got_output, &decode_failed);
2672  if (!pkt && ret >= 0)
2673  ret = AVERROR_EOF;
2674  break;
2675  default:
2676  return -1;
2677  }
2678 
2679  if (ret == AVERROR_EOF) {
2680  eof_reached = 1;
2681  break;
2682  }
2683 
2684  if (ret < 0) {
2685  if (decode_failed) {
2686  av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
2687  ist->file_index, ist->st->index, av_err2str(ret));
2688  } else {
2689  av_log(NULL, AV_LOG_FATAL, "Error while processing the decoded "
2690  "data for stream #%d:%d\n", ist->file_index, ist->st->index);
2691  }
2692  if (!decode_failed || exit_on_error)
2693  exit_program(1);
2694  break;
2695  }
2696 
2697  if (got_output)
2698  ist->got_output = 1;
2699 
2700  if (!got_output)
2701  break;
2702 
2703  // During draining, we might get multiple output frames in this loop.
2704  // ffmpeg.c does not drain the filter chain on configuration changes,
2705  // which means if we send multiple frames at once to the filters, and
2706  // one of those frames changes configuration, the buffered frames will
2707  // be lost. This can upset certain FATE tests.
2708  // Decode only 1 frame per call on EOF to appease these FATE tests.
2709  // The ideal solution would be to rewrite decoding to use the new
2710  // decoding API in a better way.
2711  if (!pkt)
2712  break;
2713 
2714  repeating = 1;
2715  }
2716 
2717  /* after flushing, send an EOF on all the filter inputs attached to the stream */
2718  /* except when looping we need to flush but not to send an EOF */
2719  if (!pkt && ist->decoding_needed && eof_reached && !no_eof) {
2720  int ret = send_filter_eof(ist);
2721  if (ret < 0) {
2722  av_log(NULL, AV_LOG_FATAL, "Error marking filters as finished\n");
2723  exit_program(1);
2724  }
2725  }
2726 
2727  /* handle stream copy */
2728  if (!ist->decoding_needed) {
2729  ist->dts = ist->next_dts;
2730  switch (ist->dec_ctx->codec_type) {
2731  case AVMEDIA_TYPE_AUDIO:
2732  if (ist->dec_ctx->sample_rate) {
2733  ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
2734  ist->dec_ctx->sample_rate;
2735  } else {
2736  ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
2737  }
2738  break;
2739  case AVMEDIA_TYPE_VIDEO:
2740  if (ist->framerate.num) {
2741  // TODO: Remove work-around for c99-to-c89 issue 7
2742  AVRational time_base_q = AV_TIME_BASE_Q;
2743  int64_t next_dts = av_rescale_q(ist->next_dts, time_base_q, av_inv_q(ist->framerate));
2744  ist->next_dts = av_rescale_q(next_dts + 1, av_inv_q(ist->framerate), time_base_q);
2745  } else if (pkt->duration) {
2746  ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
2747  } else if(ist->dec_ctx->framerate.num != 0) {
2748  int ticks= av_stream_get_parser(ist->st) ? av_stream_get_parser(ist->st)->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
2749  ist->next_dts += ((int64_t)AV_TIME_BASE *
2750  ist->dec_ctx->framerate.den * ticks) /
2752  }
2753  break;
2754  }
2755  ist->pts = ist->dts;
2756  ist->next_pts = ist->next_dts;
2757  }
2758  for (i = 0; pkt && i < nb_output_streams; i++) {
2759  OutputStream *ost = output_streams[i];
2760 
2761  if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2762  continue;
2763 
2764  do_streamcopy(ist, ost, pkt);
2765  }
2766 
2767  return !eof_reached;
2768 }
2769 
2770 static void print_sdp(void)
2771 {
2772  char sdp[16384];
2773  int i;
2774  int j;
2775  AVIOContext *sdp_pb;
2776  AVFormatContext **avc;
2777 
2778  for (i = 0; i < nb_output_files; i++) {
2779  if (!output_files[i]->header_written)
2780  return;
2781  }
2782 
2783  avc = av_malloc_array(nb_output_files, sizeof(*avc));
2784  if (!avc)
2785  exit_program(1);
2786  for (i = 0, j = 0; i < nb_output_files; i++) {
2787  if (!strcmp(output_files[i]->ctx->oformat->name, "rtp")) {
2788  avc[j] = output_files[i]->ctx;
2789  j++;
2790  }
2791  }
2792 
2793  if (!j)
2794  goto fail;
2795 
2796  av_sdp_create(avc, j, sdp, sizeof(sdp));
2797 
2798  if (!sdp_filename) {
2799  printf("SDP:\n%s\n", sdp);
2800  fflush(stdout);
2801  } else {
2802  if (avio_open2(&sdp_pb, sdp_filename, AVIO_FLAG_WRITE, &int_cb, NULL) < 0) {
2803  av_log(NULL, AV_LOG_ERROR, "Failed to open sdp file '%s'\n", sdp_filename);
2804  } else {
2805  avio_printf(sdp_pb, "SDP:\n%s", sdp);
2806  avio_closep(&sdp_pb);
2808  }
2809  }
2810 
2811 fail:
2812  av_freep(&avc);
2813 }
2814 
2816 {
2817  int i;
2818  for (i = 0; hwaccels[i].name; i++)
2819  if (hwaccels[i].pix_fmt == pix_fmt)
2820  return &hwaccels[i];
2821  return NULL;
2822 }
2823 
2825 {
2826  InputStream *ist = s->opaque;
2827  const enum AVPixelFormat *p;
2828  int ret;
2829 
2830  for (p = pix_fmts; *p != -1; p++) {
2832  const HWAccel *hwaccel;
2833 
2834  if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
2835  break;
2836 
2837  hwaccel = get_hwaccel(*p);
2838  if (!hwaccel ||
2839  (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
2840  (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
2841  continue;
2842 
2843  ret = hwaccel->init(s);
2844  if (ret < 0) {
2845  if (ist->hwaccel_id == hwaccel->id) {
2847  "%s hwaccel requested for input stream #%d:%d, "
2848  "but cannot be initialized.\n", hwaccel->name,
2849  ist->file_index, ist->st->index);
2850  return AV_PIX_FMT_NONE;
2851  }
2852  continue;
2853  }
2854 
2855  if (ist->hw_frames_ctx) {
2857  if (!s->hw_frames_ctx)
2858  return AV_PIX_FMT_NONE;
2859  }
2860 
2861  ist->active_hwaccel_id = hwaccel->id;
2862  ist->hwaccel_pix_fmt = *p;
2863  break;
2864  }
2865 
2866  return *p;
2867 }
2868 
2870 {
2871  InputStream *ist = s->opaque;
2872 
2873  if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
2874  return ist->hwaccel_get_buffer(s, frame, flags);
2875 
2876  return avcodec_default_get_buffer2(s, frame, flags);
2877 }
2878 
2879 static int init_input_stream(int ist_index, char *error, int error_len)
2880 {
2881  int ret;
2882  InputStream *ist = input_streams[ist_index];
2883 
2884  if (ist->decoding_needed) {
2885  AVCodec *codec = ist->dec;
2886  if (!codec) {
2887  snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
2888  avcodec_get_name(ist->dec_ctx->codec_id), ist->file_index, ist->st->index);
2889  return AVERROR(EINVAL);
2890  }
2891 
2892  ist->dec_ctx->opaque = ist;
2893  ist->dec_ctx->get_format = get_format;
2894  ist->dec_ctx->get_buffer2 = get_buffer;
2895  ist->dec_ctx->thread_safe_callbacks = 1;
2896 
2897  av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
2898  if (ist->dec_ctx->codec_id == AV_CODEC_ID_DVB_SUBTITLE &&
2899  (ist->decoding_needed & DECODING_FOR_OST)) {
2900  av_dict_set(&ist->decoder_opts, "compute_edt", "1", AV_DICT_DONT_OVERWRITE);
2902  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");
2903  }
2904 
2905  av_dict_set(&ist->decoder_opts, "sub_text_format", "ass", AV_DICT_DONT_OVERWRITE);
2906 
2907  /* Useful for subtitles retiming by lavf (FIXME), skipping samples in
2908  * audio, and video decoders such as cuvid or mediacodec */
2910 
2911  if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
2912  av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
2913  if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
2914  if (ret == AVERROR_EXPERIMENTAL)
2915  abort_codec_experimental(codec, 0);
2916 
2917  snprintf(error, error_len,
2918  "Error while opening decoder for input stream "
2919  "#%d:%d : %s",
2920  ist->file_index, ist->st->index, av_err2str(ret));
2921  return ret;
2922  }
2924  }
2925 
2926  ist->next_pts = AV_NOPTS_VALUE;
2927  ist->next_dts = AV_NOPTS_VALUE;
2928 
2929  return 0;
2930 }
2931 
2933 {
2934  if (ost->source_index >= 0)
2935  return input_streams[ost->source_index];
2936  return NULL;
2937 }
2938 
2939 static int compare_int64(const void *a, const void *b)
2940 {
2941  return FFDIFFSIGN(*(const int64_t *)a, *(const int64_t *)b);
2942 }
2943 
2944 /* open the muxer when all the streams are initialized */
2945 static int check_init_output_file(OutputFile *of, int file_index)
2946 {
2947  int ret, i;
2948 
2949  for (i = 0; i < of->ctx->nb_streams; i++) {
2950  OutputStream *ost = output_streams[of->ost_index + i];
2951  if (!ost->initialized)
2952  return 0;
2953  }
2954 
2955  of->ctx->interrupt_callback = int_cb;
2956 
2957  ret = avformat_write_header(of->ctx, &of->opts);
2958  if (ret < 0) {
2960  "Could not write header for output file #%d "
2961  "(incorrect codec parameters ?): %s\n",
2962  file_index, av_err2str(ret));
2963  return ret;
2964  }
2965  //assert_avoptions(of->opts);
2966  of->header_written = 1;
2967 
2968  av_dump_format(of->ctx, file_index, of->ctx->filename, 1);
2969 
2970  if (sdp_filename || want_sdp)
2971  print_sdp();
2972 
2973  /* flush the muxing queues */
2974  for (i = 0; i < of->ctx->nb_streams; i++) {
2975  OutputStream *ost = output_streams[of->ost_index + i];
2976 
2977  /* try to improve muxing time_base (only possible if nothing has been written yet) */
2978  if (!av_fifo_size(ost->muxing_queue))
2979  ost->mux_timebase = ost->st->time_base;
2980 
2981  while (av_fifo_size(ost->muxing_queue)) {
2982  AVPacket pkt;
2983  av_fifo_generic_read(ost->muxing_queue, &pkt, sizeof(pkt), NULL);
2984  write_packet(of, &pkt, ost, 1);
2985  }
2986  }
2987 
2988  return 0;
2989 }
2990 
2992 {
2993  AVBSFContext *ctx;
2994  int i, ret;
2995 
2996  if (!ost->nb_bitstream_filters)
2997  return 0;
2998 
2999  for (i = 0; i < ost->nb_bitstream_filters; i++) {
3000  ctx = ost->bsf_ctx[i];
3001 
3002  ret = avcodec_parameters_copy(ctx->par_in,
3003  i ? ost->bsf_ctx[i - 1]->par_out : ost->st->codecpar);
3004  if (ret < 0)
3005  return ret;
3006 
3007  ctx->time_base_in = i ? ost->bsf_ctx[i - 1]->time_base_out : ost->st->time_base;
3008 
3009  ret = av_bsf_init(ctx);
3010  if (ret < 0) {
3011  av_log(NULL, AV_LOG_ERROR, "Error initializing bitstream filter: %s\n",
3012  ost->bsf_ctx[i]->filter->name);
3013  return ret;
3014  }
3015  }
3016 
3017  ctx = ost->bsf_ctx[ost->nb_bitstream_filters - 1];
3018  ret = avcodec_parameters_copy(ost->st->codecpar, ctx->par_out);
3019  if (ret < 0)
3020  return ret;
3021 
3022  ost->st->time_base = ctx->time_base_out;
3023 
3024  return 0;
3025 }
3026 
3028 {
3029  OutputFile *of = output_files[ost->file_index];
3030  InputStream *ist = get_input_stream(ost);
3031  AVCodecParameters *par_dst = ost->st->codecpar;
3032  AVCodecParameters *par_src = ost->ref_par;
3033  AVRational sar;
3034  int i, ret;
3035  uint32_t codec_tag = par_dst->codec_tag;
3036 
3037  av_assert0(ist && !ost->filter);
3038 
3039  ret = avcodec_parameters_to_context(ost->enc_ctx, ist->st->codecpar);
3040  if (ret >= 0)
3041  ret = av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts);
3042  if (ret < 0) {
3044  "Error setting up codec context options.\n");
3045  return ret;
3046  }
3048 
3049  if (!codec_tag) {
3050  unsigned int codec_tag_tmp;
3051  if (!of->ctx->oformat->codec_tag ||
3052  av_codec_get_id (of->ctx->oformat->codec_tag, par_src->codec_tag) == par_src->codec_id ||
3053  !av_codec_get_tag2(of->ctx->oformat->codec_tag, par_src->codec_id, &codec_tag_tmp))
3054  codec_tag = par_src->codec_tag;
3055  }
3056 
3057  ret = avcodec_parameters_copy(par_dst, par_src);
3058  if (ret < 0)
3059  return ret;
3060 
3061  par_dst->codec_tag = codec_tag;
3062 
3063  if (!ost->frame_rate.num)
3064  ost->frame_rate = ist->framerate;
3065  ost->st->avg_frame_rate = ost->frame_rate;
3066 
3068  if (ret < 0)
3069  return ret;
3070 
3071  // copy timebase while removing common factors
3072  if (ost->st->time_base.num <= 0 || ost->st->time_base.den <= 0)
3074 
3075  // copy estimated duration as a hint to the muxer
3076  if (ost->st->duration <= 0 && ist->st->duration > 0)
3077  ost->st->duration = av_rescale_q(ist->st->duration, ist->st->time_base, ost->st->time_base);
3078 
3079  // copy disposition
3080  ost->st->disposition = ist->st->disposition;
3081 
3082  if (ist->st->nb_side_data) {
3084  sizeof(*ist->st->side_data));
3085  if (!ost->st->side_data)
3086  return AVERROR(ENOMEM);
3087 
3088  ost->st->nb_side_data = 0;
3089  for (i = 0; i < ist->st->nb_side_data; i++) {
3090  const AVPacketSideData *sd_src = &ist->st->side_data[i];
3091  AVPacketSideData *sd_dst = &ost->st->side_data[ost->st->nb_side_data];
3092 
3093  sd_dst->data = av_malloc(sd_src->size);
3094  if (!sd_dst->data)
3095  return AVERROR(ENOMEM);
3096  memcpy(sd_dst->data, sd_src->data, sd_src->size);
3097  sd_dst->size = sd_src->size;
3098  sd_dst->type = sd_src->type;
3099  ost->st->nb_side_data++;
3100  }
3101  }
3102 
3103  if (ost->rotate_overridden) {
3105  sizeof(int32_t) * 9);
3106  if (sd)
3108  }
3109 
3110  ost->parser = av_parser_init(par_dst->codec_id);
3112  if (!ost->parser_avctx)
3113  return AVERROR(ENOMEM);
3114 
3115  switch (par_dst->codec_type) {
3116  case AVMEDIA_TYPE_AUDIO:
3117  if (audio_volume != 256) {
3118  av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
3119  exit_program(1);
3120  }
3121  if((par_dst->block_align == 1 || par_dst->block_align == 1152 || par_dst->block_align == 576) && par_dst->codec_id == AV_CODEC_ID_MP3)
3122  par_dst->block_align= 0;
3123  if(par_dst->codec_id == AV_CODEC_ID_AC3)
3124  par_dst->block_align= 0;
3125  break;
3126  case AVMEDIA_TYPE_VIDEO:
3127  if (ost->frame_aspect_ratio.num) { // overridden by the -aspect cli option
3128  sar =
3130  (AVRational){ par_dst->height, par_dst->width });
3131  av_log(NULL, AV_LOG_WARNING, "Overriding aspect ratio "
3132  "with stream copy may produce invalid files\n");
3133  }
3134  else if (ist->st->sample_aspect_ratio.num)
3135  sar = ist->st->sample_aspect_ratio;
3136  else
3137  sar = par_src->sample_aspect_ratio;
3138  ost->st->sample_aspect_ratio = par_dst->sample_aspect_ratio = sar;
3139  ost->st->avg_frame_rate = ist->st->avg_frame_rate;
3140  ost->st->r_frame_rate = ist->st->r_frame_rate;
3141  break;
3142  }
3143 
3144  ost->mux_timebase = ist->st->time_base;
3145 
3146  return 0;
3147 }
3148 
3150 {
3151  AVDictionaryEntry *e;
3152 
3153  uint8_t *encoder_string;
3154  int encoder_string_len;
3155  int format_flags = 0;
3156  int codec_flags = 0;
3157 
3158  if (av_dict_get(ost->st->metadata, "encoder", NULL, 0))
3159  return;
3160 
3161  e = av_dict_get(of->opts, "fflags", NULL, 0);
3162  if (e) {
3163  const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
3164  if (!o)
3165  return;
3166  av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
3167  }
3168  e = av_dict_get(ost->encoder_opts, "flags", NULL, 0);
3169  if (e) {
3170  const AVOption *o = av_opt_find(ost->enc_ctx, "flags", NULL, 0, 0);
3171  if (!o)
3172  return;
3173  av_opt_eval_flags(ost->enc_ctx, o, e->value, &codec_flags);
3174  }
3175 
3176  encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
3177  encoder_string = av_mallocz(encoder_string_len);
3178  if (!encoder_string)
3179  exit_program(1);
3180 
3181  if (!(format_flags & AVFMT_FLAG_BITEXACT) && !(codec_flags & AV_CODEC_FLAG_BITEXACT))
3182  av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
3183  else
3184  av_strlcpy(encoder_string, "Lavc ", encoder_string_len);
3185  av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
3186  av_dict_set(&ost->st->metadata, "encoder", encoder_string,
3188 }
3189 
3190 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3191  AVCodecContext *avctx)
3192 {
3193  char *p;
3194  int n = 1, i, size, index = 0;
3195  int64_t t, *pts;
3196 
3197  for (p = kf; *p; p++)
3198  if (*p == ',')
3199  n++;
3200  size = n;
3201  pts = av_malloc_array(size, sizeof(*pts));
3202  if (!pts) {
3203  av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3204  exit_program(1);
3205  }
3206 
3207  p = kf;
3208  for (i = 0; i < n; i++) {
3209  char *next = strchr(p, ',');
3210 
3211  if (next)
3212  *next++ = 0;
3213 
3214  if (!memcmp(p, "chapters", 8)) {
3215 
3216  AVFormatContext *avf = output_files[ost->file_index]->ctx;
3217  int j;
3218 
3219  if (avf->nb_chapters > INT_MAX - size ||
3220  !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
3221  sizeof(*pts)))) {
3223  "Could not allocate forced key frames array.\n");
3224  exit_program(1);
3225  }
3226  t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
3227  t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3228 
3229  for (j = 0; j < avf->nb_chapters; j++) {
3230  AVChapter *c = avf->chapters[j];
3231  av_assert1(index < size);
3232  pts[index++] = av_rescale_q(c->start, c->time_base,
3233  avctx->time_base) + t;
3234  }
3235 
3236  } else {
3237 
3238  t = parse_time_or_die("force_key_frames", p, 1);
3239  av_assert1(index < size);
3240  pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3241 
3242  }
3243 
3244  p = next;
3245  }
3246 
3247  av_assert0(index == size);
3248  qsort(pts, size, sizeof(*pts), compare_int64);
3249  ost->forced_kf_count = size;
3250  ost->forced_kf_pts = pts;
3251 }
3252 
3254 {
3255  InputStream *ist = get_input_stream(ost);
3256  AVCodecContext *enc_ctx = ost->enc_ctx;
3258  AVFormatContext *oc = output_files[ost->file_index]->ctx;
3259  int j, ret;
3260 
3261  set_encoder_id(output_files[ost->file_index], ost);
3262 
3263  // Muxers use AV_PKT_DATA_DISPLAYMATRIX to signal rotation. On the other
3264  // hand, the legacy API makes demuxers set "rotate" metadata entries,
3265  // which have to be filtered out to prevent leaking them to output files.
3266  av_dict_set(&ost->st->metadata, "rotate", NULL, 0);
3267 
3268  if (ist) {
3269  ost->st->disposition = ist->st->disposition;
3270 
3271  dec_ctx = ist->dec_ctx;
3272 
3273  enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
3274  } else {
3275  for (j = 0; j < oc->nb_streams; j++) {
3276  AVStream *st = oc->streams[j];
3277  if (st != ost->st && st->codecpar->codec_type == ost->st->codecpar->codec_type)
3278  break;
3279  }
3280  if (j == oc->nb_streams)
3281  if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO ||
3284  }
3285 
3286  if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
3287  if (!ost->frame_rate.num)
3289  if (ist && !ost->frame_rate.num)
3290  ost->frame_rate = ist->framerate;
3291  if (ist && !ost->frame_rate.num)
3292  ost->frame_rate = ist->st->r_frame_rate;
3293  if (ist && !ost->frame_rate.num) {
3294  ost->frame_rate = (AVRational){25, 1};
3296  "No information "
3297  "about the input framerate is available. Falling "
3298  "back to a default value of 25fps for output stream #%d:%d. Use the -r option "
3299  "if you want a different framerate.\n",
3300  ost->file_index, ost->index);
3301  }
3302 // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
3303  if (ost->enc->supported_framerates && !ost->force_fps) {
3304  int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
3305  ost->frame_rate = ost->enc->supported_framerates[idx];
3306  }
3307  // reduce frame rate for mpeg4 to be within the spec limits
3308  if (enc_ctx->codec_id == AV_CODEC_ID_MPEG4) {
3309  av_reduce(&ost->frame_rate.num, &ost->frame_rate.den,
3310  ost->frame_rate.num, ost->frame_rate.den, 65535);
3311  }
3312  }
3313 
3314  switch (enc_ctx->codec_type) {
3315  case AVMEDIA_TYPE_AUDIO:
3317  if (dec_ctx)
3318  enc_ctx->bits_per_raw_sample = FFMIN(dec_ctx->bits_per_raw_sample,
3319  av_get_bytes_per_sample(enc_ctx->sample_fmt) << 3);
3323  enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
3324  break;
3325  case AVMEDIA_TYPE_VIDEO:
3326  enc_ctx->time_base = av_inv_q(ost->frame_rate);
3327  if (!(enc_ctx->time_base.num && enc_ctx->time_base.den))
3329  if ( av_q2d(enc_ctx->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
3331  av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
3332  "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
3333  }
3334  for (j = 0; j < ost->forced_kf_count; j++)
3335  ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
3337  enc_ctx->time_base);
3338 
3339  enc_ctx->width = av_buffersink_get_w(ost->filter->filter);
3340  enc_ctx->height = av_buffersink_get_h(ost->filter->filter);
3341  enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
3342  ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option
3343  av_mul_q(ost->frame_aspect_ratio, (AVRational){ enc_ctx->height, enc_ctx->width }) :
3345  if (!strncmp(ost->enc->name, "libx264", 7) &&
3346  enc_ctx->pix_fmt == AV_PIX_FMT_NONE &&
3349  "No pixel format specified, %s for H.264 encoding chosen.\n"
3350  "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
3352  if (!strncmp(ost->enc->name, "mpeg2video", 10) &&
3353  enc_ctx->pix_fmt == AV_PIX_FMT_NONE &&
3356  "No pixel format specified, %s for MPEG-2 encoding chosen.\n"
3357  "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
3359  enc_ctx->pix_fmt = av_buffersink_get_format(ost->filter->filter);
3360  if (dec_ctx)
3361  enc_ctx->bits_per_raw_sample = FFMIN(dec_ctx->bits_per_raw_sample,
3362  av_pix_fmt_desc_get(enc_ctx->pix_fmt)->comp[0].depth);
3363 
3364  enc_ctx->framerate = ost->frame_rate;
3365 
3366  ost->st->avg_frame_rate = ost->frame_rate;
3367 
3368  if (!dec_ctx ||
3369  enc_ctx->width != dec_ctx->width ||
3370  enc_ctx->height != dec_ctx->height ||
3371  enc_ctx->pix_fmt != dec_ctx->pix_fmt) {
3373  }
3374 
3375  if (ost->forced_keyframes) {
3376  if (!strncmp(ost->forced_keyframes, "expr:", 5)) {
3379  if (ret < 0) {
3381  "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5);
3382  return ret;
3383  }
3388 
3389  // Don't parse the 'forced_keyframes' in case of 'keep-source-keyframes',
3390  // parse it only for static kf timings
3391  } else if(strncmp(ost->forced_keyframes, "source", 6)) {
3393  }
3394  }
3395  break;
3396  case AVMEDIA_TYPE_SUBTITLE:
3397  enc_ctx->time_base = AV_TIME_BASE_Q;
3398  if (!enc_ctx->width) {
3399  enc_ctx->width = input_streams[ost->source_index]->st->codecpar->width;
3400  enc_ctx->height = input_streams[ost->source_index]->st->codecpar->height;
3401  }
3402  break;
3403  case AVMEDIA_TYPE_DATA:
3404  break;
3405  default:
3406  abort();
3407  break;
3408  }
3409 
3410  ost->mux_timebase = enc_ctx->time_base;
3411 
3412  return 0;
3413 }
3414 
3415 static int init_output_stream(OutputStream *ost, char *error, int error_len)
3416 {
3417  int ret = 0;
3418 
3419  if (ost->encoding_needed) {
3420  AVCodec *codec = ost->enc;
3421  AVCodecContext *dec = NULL;
3422  InputStream *ist;
3423 
3424  ret = init_output_stream_encode(ost);
3425  if (ret < 0)
3426  return ret;
3427 
3428  if ((ist = get_input_stream(ost)))
3429  dec = ist->dec_ctx;
3430  if (dec && dec->subtitle_header) {
3431  /* ASS code assumes this buffer is null terminated so add extra byte. */
3433  if (!ost->enc_ctx->subtitle_header)
3434  return AVERROR(ENOMEM);
3435  memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
3437  }
3438  if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
3439  av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
3440  if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
3441  !codec->defaults &&
3442  !av_dict_get(ost->encoder_opts, "b", NULL, 0) &&
3443  !av_dict_get(ost->encoder_opts, "ab", NULL, 0))
3444  av_dict_set(&ost->encoder_opts, "b", "128000", 0);
3445 
3446  if (ost->filter && av_buffersink_get_hw_frames_ctx(ost->filter->filter) &&
3450  if (!ost->enc_ctx->hw_frames_ctx)
3451  return AVERROR(ENOMEM);
3452  }
3453 
3454  if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
3455  if (ret == AVERROR_EXPERIMENTAL)
3456  abort_codec_experimental(codec, 1);
3457  snprintf(error, error_len,
3458  "Error while opening encoder for output stream #%d:%d - "
3459  "maybe incorrect parameters such as bit_rate, rate, width or height",
3460  ost->file_index, ost->index);
3461  return ret;
3462  }
3463  if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
3464  !(ost->enc->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE))
3466  ost->enc_ctx->frame_size);
3468  if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000)
3469  av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
3470  " It takes bits/s as argument, not kbits/s\n");
3471 
3473  if (ret < 0) {
3475  "Error initializing the output stream codec context.\n");
3476  exit_program(1);
3477  }
3478  /*
3479  * FIXME: ost->st->codec should't be needed here anymore.
3480  */
3481  ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx);
3482  if (ret < 0)
3483  return ret;
3484 
3485  if (ost->enc_ctx->nb_coded_side_data) {
3486  int i;
3487 
3489  sizeof(*ost->st->side_data));
3490  if (!ost->st->side_data)
3491  return AVERROR(ENOMEM);
3492 
3493  for (i = 0; i < ost->enc_ctx->nb_coded_side_data; i++) {
3494  const AVPacketSideData *sd_src = &ost->enc_ctx->coded_side_data[i];
3495  AVPacketSideData *sd_dst = &ost->st->side_data[i];
3496 
3497  sd_dst->data = av_malloc(sd_src->size);
3498  if (!sd_dst->data)
3499  return AVERROR(ENOMEM);
3500  memcpy(sd_dst->data, sd_src->data, sd_src->size);
3501  sd_dst->size = sd_src->size;
3502  sd_dst->type = sd_src->type;
3503  ost->st->nb_side_data++;
3504  }
3505  }
3506 
3507  /*
3508  * Add global input side data. For now this is naive, and copies it
3509  * from the input stream's global side data. All side data should
3510  * really be funneled over AVFrame and libavfilter, then added back to
3511  * packet side data, and then potentially using the first packet for
3512  * global side data.
3513  */
3514  if (ist) {
3515  int i;
3516  for (i = 0; i < ist->st->nb_side_data; i++) {
3517  AVPacketSideData *sd = &ist->st->side_data[i];
3518  uint8_t *dst = av_stream_new_side_data(ost->st, sd->type, sd->size);
3519  if (!dst)
3520  return AVERROR(ENOMEM);
3521  memcpy(dst, sd->data, sd->size);
3522  if (ist->autorotate && sd->type == AV_PKT_DATA_DISPLAYMATRIX)
3523  av_display_rotation_set((uint32_t *)dst, 0);
3524  }
3525  }
3526 
3527  // copy timebase while removing common factors
3528  if (ost->st->time_base.num <= 0 || ost->st->time_base.den <= 0)
3529  ost->st->time_base = av_add_q(ost->enc_ctx->time_base, (AVRational){0, 1});
3530 
3531  // copy estimated duration as a hint to the muxer
3532  if (ost->st->duration <= 0 && ist && ist->st->duration > 0)
3533  ost->st->duration = av_rescale_q(ist->st->duration, ist->st->time_base, ost->st->time_base);
3534 
3535  ost->st->codec->codec= ost->enc_ctx->codec;
3536  } else if (ost->stream_copy) {
3537  ret = init_output_stream_streamcopy(ost);
3538  if (ret < 0)
3539  return ret;
3540 
3541  /*
3542  * FIXME: will the codec context used by the parser during streamcopy
3543  * This should go away with the new parser API.
3544  */
3546  if (ret < 0)
3547  return ret;
3548  }
3549 
3550  // parse user provided disposition, and update stream values
3551  if (ost->disposition) {
3552  static const AVOption opts[] = {
3553  { "disposition" , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, INT64_MAX, .unit = "flags" },
3554  { "default" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DEFAULT }, .unit = "flags" },
3555  { "dub" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DUB }, .unit = "flags" },
3556  { "original" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_ORIGINAL }, .unit = "flags" },
3557  { "comment" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_COMMENT }, .unit = "flags" },
3558  { "lyrics" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_LYRICS }, .unit = "flags" },
3559  { "karaoke" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_KARAOKE }, .unit = "flags" },
3560  { "forced" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_FORCED }, .unit = "flags" },
3561  { "hearing_impaired" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_HEARING_IMPAIRED }, .unit = "flags" },
3562  { "visual_impaired" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_VISUAL_IMPAIRED }, .unit = "flags" },
3563  { "clean_effects" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_CLEAN_EFFECTS }, .unit = "flags" },
3564  { "captions" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_CAPTIONS }, .unit = "flags" },
3565  { "descriptions" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DESCRIPTIONS }, .unit = "flags" },
3566  { "metadata" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_METADATA }, .unit = "flags" },
3567  { NULL },
3568  };
3569  static const AVClass class = {
3570  .class_name = "",
3571  .item_name = av_default_item_name,
3572  .option = opts,
3573  .version = LIBAVUTIL_VERSION_INT,
3574  };
3575  const AVClass *pclass = &class;
3576 
3577  ret = av_opt_eval_flags(&pclass, &opts[0], ost->disposition, &ost->st->disposition);
3578  if (ret < 0)
3579  return ret;
3580  }
3581 
3582  /* initialize bitstream filters for the output stream
3583  * needs to be done here, because the codec id for streamcopy is not
3584  * known until now */
3585  ret = init_output_bsfs(ost);
3586  if (ret < 0)
3587  return ret;
3588 
3589  ost->initialized = 1;
3590 
3591  ret = check_init_output_file(output_files[ost->file_index], ost->file_index);
3592  if (ret < 0)
3593  return ret;
3594 
3595  return ret;
3596 }
3597 
3598 static void report_new_stream(int input_index, AVPacket *pkt)
3599 {
3600  InputFile *file = input_files[input_index];
3601  AVStream *st = file->ctx->streams[pkt->stream_index];
3602 
3603  if (pkt->stream_index < file->nb_streams_warn)
3604  return;
3605  av_log(file->ctx, AV_LOG_WARNING,
3606  "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
3608  input_index, pkt->stream_index,
3609  pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
3610  file->nb_streams_warn = pkt->stream_index + 1;
3611 }
3612 
3613 static int transcode_init(void)
3614 {
3615  int ret = 0, i, j, k;
3616  AVFormatContext *oc;
3617  OutputStream *ost;
3618  InputStream *ist;
3619  char error[1024] = {0};
3620 
3621  for (i = 0; i < nb_filtergraphs; i++) {
3622  FilterGraph *fg = filtergraphs[i];
3623  for (j = 0; j < fg->nb_outputs; j++) {
3624  OutputFilter *ofilter = fg->outputs[j];
3625  if (!ofilter->ost || ofilter->ost->source_index >= 0)
3626  continue;
3627  if (fg->nb_inputs != 1)
3628  continue;
3629  for (k = nb_input_streams-1; k >= 0 ; k--)
3630  if (fg->inputs[0]->ist == input_streams[k])
3631  break;
3632  ofilter->ost->source_index = k;
3633  }
3634  }
3635 
3636  /* init framerate emulation */
3637  for (i = 0; i < nb_input_files; i++) {
3638  InputFile *ifile = input_files[i];
3639  if (ifile->rate_emu)
3640  for (j = 0; j < ifile->nb_streams; j++)
3641  input_streams[j + ifile->ist_index]->start = av_gettime_relative();
3642  }
3643 
3644  /* init input streams */
3645  for (i = 0; i < nb_input_streams; i++)
3646  if ((ret = init_input_stream(i, error, sizeof(error))) < 0) {
3647  for (i = 0; i < nb_output_streams; i++) {
3648  ost = output_streams[i];
3649  avcodec_close(ost->enc_ctx);
3650  }
3651  goto dump_format;
3652  }
3653 
3654  /* open each encoder */
3655  for (i = 0; i < nb_output_streams; i++) {
3656  // skip streams fed from filtergraphs until we have a frame for them
3657  if (output_streams[i]->filter)
3658  continue;
3659 
3660  ret = init_output_stream(output_streams[i], error, sizeof(error));
3661  if (ret < 0)
3662  goto dump_format;
3663  }
3664 
3665  /* discard unused programs */
3666  for (i = 0; i < nb_input_files; i++) {
3667  InputFile *ifile = input_files[i];
3668  for (j = 0; j < ifile->ctx->nb_programs; j++) {
3669  AVProgram *p = ifile->ctx->programs[j];
3670  int discard = AVDISCARD_ALL;
3671 
3672  for (k = 0; k < p->nb_stream_indexes; k++)
3673  if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
3674  discard = AVDISCARD_DEFAULT;
3675  break;
3676  }
3677  p->discard = discard;
3678  }
3679  }
3680 
3681  /* write headers for files with no streams */
3682  for (i = 0; i < nb_output_files; i++) {
3683  oc = output_files[i]->ctx;
3684  if (oc->oformat->flags & AVFMT_NOSTREAMS && oc->nb_streams == 0) {
3685  ret = check_init_output_file(output_files[i], i);
3686  if (ret < 0)
3687  goto dump_format;
3688  }
3689  }
3690 
3691  dump_format:
3692  /* dump the stream mapping */
3693  av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
3694  for (i = 0; i < nb_input_streams; i++) {
3695  ist = input_streams[i];
3696 
3697  for (j = 0; j < ist->nb_filters; j++) {
3698  if (!filtergraph_is_simple(ist->filters[j]->graph)) {
3699  av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
3700  ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
3701  ist->filters[j]->name);
3702  if (nb_filtergraphs > 1)
3703  av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
3704  av_log(NULL, AV_LOG_INFO, "\n");
3705  }
3706  }
3707  }
3708 
3709  for (i = 0; i < nb_output_streams; i++) {
3710  ost = output_streams[i];
3711 
3712  if (ost->attachment_filename) {
3713  /* an attached file */
3714  av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
3715  ost->attachment_filename, ost->file_index, ost->index);
3716  continue;
3717  }
3718 
3719  if (ost->filter && !filtergraph_is_simple(ost->filter->graph)) {
3720  /* output from a complex graph */
3721  av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
3722  if (nb_filtergraphs > 1)
3723  av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
3724 
3725  av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
3726  ost->index, ost->enc ? ost->enc->name : "?");
3727  continue;
3728  }
3729 
3730  av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
3731  input_streams[ost->source_index]->file_index,
3732  input_streams[ost->source_index]->st->index,
3733  ost->file_index,
3734  ost->index);
3735  if (ost->sync_ist != input_streams[ost->source_index])
3736  av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
3737  ost->sync_ist->file_index,
3738  ost->sync_ist->st->index);
3739  if (ost->stream_copy)
3740  av_log(NULL, AV_LOG_INFO, " (copy)");
3741  else {
3742  const AVCodec *in_codec = input_streams[ost->source_index]->dec;
3743  const AVCodec *out_codec = ost->enc;
3744  const char *decoder_name = "?";
3745  const char *in_codec_name = "?";
3746  const char *encoder_name = "?";
3747  const char *out_codec_name = "?";
3748  const AVCodecDescriptor *desc;
3749 
3750  if (in_codec) {
3751  decoder_name = in_codec->name;
3752  desc = avcodec_descriptor_get(in_codec->id);
3753  if (desc)
3754  in_codec_name = desc->name;
3755  if (!strcmp(decoder_name, in_codec_name))
3756  decoder_name = "native";
3757  }
3758 
3759  if (out_codec) {
3760  encoder_name = out_codec->name;
3761  desc = avcodec_descriptor_get(out_codec->id);
3762  if (desc)
3763  out_codec_name = desc->name;
3764  if (!strcmp(encoder_name, out_codec_name))
3765  encoder_name = "native";
3766  }
3767 
3768  av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
3769  in_codec_name, decoder_name,
3770  out_codec_name, encoder_name);
3771  }
3772  av_log(NULL, AV_LOG_INFO, "\n");
3773  }
3774 
3775  if (ret) {
3776  av_log(NULL, AV_LOG_ERROR, "%s\n", error);
3777  return ret;
3778  }
3779 
3781 
3782  return 0;
3783 }
3784 
3785 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
3786 static int need_output(void)
3787 {
3788  int i;
3789 
3790  for (i = 0; i < nb_output_streams; i++) {
3791  OutputStream *ost = output_streams[i];
3792  OutputFile *of = output_files[ost->file_index];
3793  AVFormatContext *os = output_files[ost->file_index]->ctx;
3794 
3795  if (ost->finished ||
3796  (os->pb && avio_tell(os->pb) >= of->limit_filesize))
3797  continue;
3798  if (ost->frame_number >= ost->max_frames) {
3799  int j;
3800  for (j = 0; j < of->ctx->nb_streams; j++)
3801  close_output_stream(output_streams[of->ost_index + j]);
3802  continue;
3803  }
3804 
3805  return 1;
3806  }
3807 
3808  return 0;
3809 }
3810 
3811 /**
3812  * Select the output stream to process.
3813  *
3814  * @return selected output stream, or NULL if none available
3815  */
3817 {
3818  int i;
3819  int64_t opts_min = INT64_MAX;
3820  OutputStream *ost_min = NULL;
3821 
3822  for (i = 0; i < nb_output_streams; i++) {
3823  OutputStream *ost = output_streams[i];
3824  int64_t opts = ost->st->cur_dts == AV_NOPTS_VALUE ? INT64_MIN :
3825  av_rescale_q(ost->st->cur_dts, ost->st->time_base,
3826  AV_TIME_BASE_Q);
3827  if (ost->st->cur_dts == AV_NOPTS_VALUE)
3828  av_log(NULL, AV_LOG_DEBUG, "cur_dts is invalid (this is harmless if it occurs once at the start per stream)\n");
3829 
3830  if (!ost->initialized && !ost->inputs_done)
3831  return ost;
3832 
3833  if (!ost->finished && opts < opts_min) {
3834  opts_min = opts;
3835  ost_min = ost->unavailable ? NULL : ost;
3836  }
3837  }
3838  return ost_min;
3839 }
3840 
3841 static void set_tty_echo(int on)
3842 {
3843 #if HAVE_TERMIOS_H
3844  struct termios tty;
3845  if (tcgetattr(0, &tty) == 0) {
3846  if (on) tty.c_lflag |= ECHO;
3847  else tty.c_lflag &= ~ECHO;
3848  tcsetattr(0, TCSANOW, &tty);
3849  }
3850 #endif
3851 }
3852 
3854 {
3855  int i, ret, key;
3856  static int64_t last_time;
3857  if (received_nb_signals)
3858  return AVERROR_EXIT;
3859  /* read_key() returns 0 on EOF */
3860  if(cur_time - last_time >= 100000 && !run_as_daemon){
3861  key = read_key();
3862  last_time = cur_time;
3863  }else
3864  key = -1;
3865  if (key == 'q')
3866  return AVERROR_EXIT;
3867  if (key == '+') av_log_set_level(av_log_get_level()+10);
3868  if (key == '-') av_log_set_level(av_log_get_level()-10);
3869  if (key == 's') qp_hist ^= 1;
3870  if (key == 'h'){
3871  if (do_hex_dump){
3872  do_hex_dump = do_pkt_dump = 0;
3873  } else if(do_pkt_dump){
3874  do_hex_dump = 1;
3875  } else
3876  do_pkt_dump = 1;
3878  }
3879  if (key == 'c' || key == 'C'){
3880  char buf[4096], target[64], command[256], arg[256] = {0};
3881  double time;
3882  int k, n = 0;
3883  fprintf(stderr, "\nEnter command: <target>|all <time>|-1 <command>[ <argument>]\n");
3884  i = 0;
3885  set_tty_echo(1);
3886  while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
3887  if (k > 0)
3888  buf[i++] = k;
3889  buf[i] = 0;
3890  set_tty_echo(0);
3891  fprintf(stderr, "\n");
3892  if (k > 0 &&
3893  (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
3894  av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
3895  target, time, command, arg);
3896  for (i = 0; i < nb_filtergraphs; i++) {
3897  FilterGraph *fg = filtergraphs[i];
3898  if (fg->graph) {
3899  if (time < 0) {
3900  ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
3901  key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
3902  fprintf(stderr, "Command reply for stream %d: ret:%d res:\n%s", i, ret, buf);
3903  } else if (key == 'c') {
3904  fprintf(stderr, "Queuing commands only on filters supporting the specific command is unsupported\n");
3905  ret = AVERROR_PATCHWELCOME;
3906  } else {
3907  ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
3908  if (ret < 0)
3909  fprintf(stderr, "Queuing command failed with error %s\n", av_err2str(ret));
3910  }
3911  }
3912  }
3913  } else {
3915  "Parse error, at least 3 arguments were expected, "
3916  "only %d given in string '%s'\n", n, buf);
3917  }
3918  }
3919  if (key == 'd' || key == 'D'){
3920  int debug=0;
3921  if(key == 'D') {
3922  debug = input_streams[0]->st->codec->debug<<1;
3923  if(!debug) debug = 1;
3924  while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
3925  debug += debug;
3926  }else{
3927  char buf[32];
3928  int k = 0;
3929  i = 0;
3930  set_tty_echo(1);
3931  while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
3932  if (k > 0)
3933  buf[i++] = k;
3934  buf[i] = 0;
3935  set_tty_echo(0);
3936  fprintf(stderr, "\n");
3937  if (k <= 0 || sscanf(buf, "%d", &debug)!=1)
3938  fprintf(stderr,"error parsing debug value\n");
3939  }
3940  for(i=0;i<nb_input_streams;i++) {
3941  input_streams[i]->st->codec->debug = debug;
3942  }
3943  for(i=0;i<nb_output_streams;i++) {
3944  OutputStream *ost = output_streams[i];
3945  ost->enc_ctx->debug = debug;
3946  }
3947  if(debug) av_log_set_level(AV_LOG_DEBUG);
3948  fprintf(stderr,"debug=%d\n", debug);
3949  }
3950  if (key == '?'){
3951  fprintf(stderr, "key function\n"
3952  "? show this help\n"
3953  "+ increase verbosity\n"
3954  "- decrease verbosity\n"
3955  "c Send command to first matching filter supporting it\n"
3956  "C Send/Queue command to all matching filters\n"
3957  "D cycle through available debug modes\n"
3958  "h dump packets/hex press to cycle through the 3 states\n"
3959  "q quit\n"
3960  "s Show QP histogram\n"
3961  );
3962  }
3963  return 0;
3964 }
3965 
3966 #if HAVE_PTHREADS
3967 static void *input_thread(void *arg)
3968 {
3969  InputFile *f = arg;
3970  unsigned flags = f->non_blocking ? AV_THREAD_MESSAGE_NONBLOCK : 0;
3971  int ret = 0;
3972 
3973  while (1) {
3974  AVPacket pkt;
3975  ret = av_read_frame(f->ctx, &pkt);
3976 
3977  if (ret == AVERROR(EAGAIN)) {
3978  av_usleep(10000);
3979  continue;
3980  }
3981  if (ret < 0) {
3983  break;
3984  }
3985  ret = av_thread_message_queue_send(f->in_thread_queue, &pkt, flags);
3986  if (flags && ret == AVERROR(EAGAIN)) {
3987  flags = 0;
3988  ret = av_thread_message_queue_send(f->in_thread_queue, &pkt, flags);
3990  "Thread message queue blocking; consider raising the "
3991  "thread_queue_size option (current value: %d)\n",
3992  f->thread_queue_size);
3993  }
3994  if (ret < 0) {
3995  if (ret != AVERROR_EOF)
3996  av_log(f->ctx, AV_LOG_ERROR,
3997  "Unable to send packet to main thread: %s\n",
3998  av_err2str(ret));
3999  av_packet_unref(&pkt);
4001  break;
4002  }
4003  }
4004 
4005  return NULL;
4006 }
4007 
4008 static void free_input_threads(void)
4009 {
4010  int i;
4011 
4012  for (i = 0; i < nb_input_files; i++) {
4013  InputFile *f = input_files[i];
4014  AVPacket pkt;
4015 
4016  if (!f || !f->in_thread_queue)
4017  continue;
4019  while (av_thread_message_queue_recv(f->in_thread_queue, &pkt, 0) >= 0)
4020  av_packet_unref(&pkt);
4021 
4022  pthread_join(f->thread, NULL);
4023  f->joined = 1;
4025  }
4026 }
4027 
4028 static int init_input_threads(void)
4029 {
4030  int i, ret;
4031 
4032  if (nb_input_files == 1)
4033  return 0;
4034 
4035  for (i = 0; i < nb_input_files; i++) {
4036  InputFile *f = input_files[i];
4037 
4038  if (f->ctx->pb ? !f->ctx->pb->seekable :
4039  strcmp(f->ctx->iformat->name, "lavfi"))
4040  f->non_blocking = 1;
4042  f->thread_queue_size, sizeof(AVPacket));
4043  if (ret < 0)
4044  return ret;
4045 
4046  if ((ret = pthread_create(&f->thread, NULL, input_thread, f))) {
4047  av_log(NULL, AV_LOG_ERROR, "pthread_create failed: %s. Try to increase `ulimit -v` or decrease `ulimit -s`.\n", strerror(ret));
4049  return AVERROR(ret);
4050  }
4051  }
4052  return 0;
4053 }
4054 
4056 {
4058  f->non_blocking ?
4060 }
4061 #endif
4062 
4064 {
4065  if (f->rate_emu) {
4066  int i;
4067  for (i = 0; i < f->nb_streams; i++) {
4068  InputStream *ist = input_streams[f->ist_index + i];
4069  int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
4070  int64_t now = av_gettime_relative() - ist->start;
4071  if (pts > now)
4072  return AVERROR(EAGAIN);
4073  }
4074  }
4075 
4076 #if HAVE_PTHREADS
4077  if (nb_input_files > 1)
4078  return get_input_packet_mt(f, pkt);
4079 #endif
4080  return av_read_frame(f->ctx, pkt);
4081 }
4082 
4083 static int got_eagain(void)
4084 {
4085  int i;
4086  for (i = 0; i < nb_output_streams; i++)
4087  if (output_streams[i]->unavailable)
4088  return 1;
4089  return 0;
4090 }
4091 
4092 static void reset_eagain(void)
4093 {
4094  int i;
4095  for (i = 0; i < nb_input_files; i++)
4096  input_files[i]->eagain = 0;
4097  for (i = 0; i < nb_output_streams; i++)
4098  output_streams[i]->unavailable = 0;
4099 }
4100 
4101 // set duration to max(tmp, duration) in a proper time base and return duration's time_base
4102 static AVRational duration_max(int64_t tmp, int64_t *duration, AVRational tmp_time_base,
4103  AVRational time_base)
4104 {
4105  int ret;
4106 
4107  if (!*duration) {
4108  *duration = tmp;
4109  return tmp_time_base;
4110  }
4111 
4112  ret = av_compare_ts(*duration, time_base, tmp, tmp_time_base);
4113  if (ret < 0) {
4114  *duration = tmp;
4115  return tmp_time_base;
4116  }
4117 
4118  return time_base;
4119 }
4120 
4122 {
4123  InputStream *ist;
4124  AVCodecContext *avctx;
4125  int i, ret, has_audio = 0;
4126  int64_t duration = 0;
4127 
4128  ret = av_seek_frame(is, -1, is->start_time, 0);
4129  if (ret < 0)
4130  return ret;
4131 
4132  for (i = 0; i < ifile->nb_streams; i++) {
4133  ist = input_streams[ifile->ist_index + i];
4134  avctx = ist->dec_ctx;
4135 
4136  // flush decoders
4137  if (ist->decoding_needed) {
4138  process_input_packet(ist, NULL, 1);
4139  avcodec_flush_buffers(avctx);
4140  }
4141 
4142  /* duration is the length of the last frame in a stream
4143  * when audio stream is present we don't care about
4144  * last video frame length because it's not defined exactly */
4145  if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples)
4146  has_audio = 1;
4147  }
4148 
4149  for (i = 0; i < ifile->nb_streams; i++) {
4150  ist = input_streams[ifile->ist_index + i];
4151  avctx = ist->dec_ctx;
4152 
4153  if (has_audio) {
4154  if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples) {
4155  AVRational sample_rate = {1, avctx->sample_rate};
4156 
4157  duration = av_rescale_q(ist->nb_samples, sample_rate, ist->st->time_base);
4158  } else
4159  continue;
4160  } else {
4161  if (ist->framerate.num) {
4162  duration = av_rescale_q(1, ist->framerate, ist->st->time_base);
4163  } else if (ist->st->avg_frame_rate.num) {
4164  duration = av_rescale_q(1, ist->st->avg_frame_rate, ist->st->time_base);
4165  } else duration = 1;
4166  }
4167  if (!ifile->duration)
4168  ifile->time_base = ist->st->time_base;
4169  /* the total duration of the stream, max_pts - min_pts is
4170  * the duration of the stream without the last frame */
4171  duration += ist->max_pts - ist->min_pts;
4172  ifile->time_base = duration_max(duration, &ifile->duration, ist->st->time_base,
4173  ifile->time_base);
4174  }
4175 
4176  if (ifile->loop > 0)
4177  ifile->loop--;
4178 
4179  return ret;
4180 }
4181 
4182 /*
4183  * Return
4184  * - 0 -- one packet was read and processed
4185  * - AVERROR(EAGAIN) -- no packets were available for selected file,
4186  * this function should be called again
4187  * - AVERROR_EOF -- this function should not be called again
4188  */
4189 static int process_input(int file_index)
4190 {
4191  InputFile *ifile = input_files[file_index];
4192  AVFormatContext *is;
4193  InputStream *ist;
4194  AVPacket pkt;
4195  int ret, i, j;
4196  int64_t duration;
4197  int64_t pkt_dts;
4198 
4199  is = ifile->ctx;
4200  ret = get_input_packet(ifile, &pkt);
4201 
4202  if (ret == AVERROR(EAGAIN)) {
4203  ifile->eagain = 1;
4204  return ret;
4205  }
4206  if (ret < 0 && ifile->loop) {
4207  if ((ret = seek_to_start(ifile, is)) < 0)
4208  return ret;
4209  ret = get_input_packet(ifile, &pkt);
4210  if (ret == AVERROR(EAGAIN)) {
4211  ifile->eagain = 1;
4212  return ret;
4213  }
4214  }
4215  if (ret < 0) {
4216  if (ret != AVERROR_EOF) {
4217  print_error(is->filename, ret);
4218  if (exit_on_error)
4219  exit_program(1);
4220  }
4221 
4222  for (i = 0; i < ifile->nb_streams; i++) {
4223  ist = input_streams[ifile->ist_index + i];
4224  if (ist->decoding_needed) {
4225  ret = process_input_packet(ist, NULL, 0);
4226  if (ret>0)
4227  return 0;
4228  }
4229 
4230  /* mark all outputs that don't go through lavfi as finished */
4231  for (j = 0; j < nb_output_streams; j++) {
4232  OutputStream *ost = output_streams[j];
4233 
4234  if (ost->source_index == ifile->ist_index + i &&
4235  (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
4236  finish_output_stream(ost);
4237  }
4238  }
4239 
4240  ifile->eof_reached = 1;
4241  return AVERROR(EAGAIN);
4242  }
4243 
4244  reset_eagain();
4245 
4246  if (do_pkt_dump) {
4248  is->streams[pkt.stream_index]);
4249  }
4250  /* the following test is needed in case new streams appear
4251  dynamically in stream : we ignore them */
4252  if (pkt.stream_index >= ifile->nb_streams) {
4253  report_new_stream(file_index, &pkt);
4254  goto discard_packet;
4255  }
4256 
4257  ist = input_streams[ifile->ist_index + pkt.stream_index];
4258 
4259  ist->data_size += pkt.size;
4260  ist->nb_packets++;
4261 
4262  if (ist->discard)
4263  goto discard_packet;
4264 
4265  if (exit_on_error && (pkt.flags & AV_PKT_FLAG_CORRUPT)) {
4266  av_log(NULL, AV_LOG_FATAL, "%s: corrupt input packet in stream %d\n", is->filename, pkt.stream_index);
4267  exit_program(1);
4268  }
4269 
4270  if (debug_ts) {
4271  av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
4272  "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",
4276  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
4277  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
4278  av_ts2str(input_files[ist->file_index]->ts_offset),
4279  av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
4280  }
4281 
4282  if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
4283  int64_t stime, stime2;
4284  // Correcting starttime based on the enabled streams
4285  // 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.
4286  // so we instead do it here as part of discontinuity handling
4287  if ( ist->next_dts == AV_NOPTS_VALUE
4288  && ifile->ts_offset == -is->start_time
4289  && (is->iformat->flags & AVFMT_TS_DISCONT)) {
4290  int64_t new_start_time = INT64_MAX;
4291  for (i=0; i<is->nb_streams; i++) {
4292  AVStream *st = is->streams[i];
4293  if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
4294  continue;
4295  new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
4296  }
4297  if (new_start_time > is->start_time) {
4298  av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
4299  ifile->ts_offset = -new_start_time;
4300  }
4301  }
4302 
4303  stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
4304  stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
4305  ist->wrap_correction_done = 1;
4306 
4307  if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
4308  pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
4309  ist->wrap_correction_done = 0;
4310  }
4311  if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
4312  pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
4313  ist->wrap_correction_done = 0;
4314  }
4315  }
4316 
4317  /* add the stream-global side data to the first packet */
4318  if (ist->nb_packets == 1) {
4319  for (i = 0; i < ist->st->nb_side_data; i++) {
4320  AVPacketSideData *src_sd = &ist->st->side_data[i];
4321  uint8_t *dst_data;
4322 
4323  if (src_sd->type == AV_PKT_DATA_DISPLAYMATRIX)
4324  continue;
4325 
4326  if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
4327  continue;
4328 
4329  dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
4330  if (!dst_data)
4331  exit_program(1);
4332 
4333  memcpy(dst_data, src_sd->data, src_sd->size);
4334  }
4335  }
4336 
4337  if (pkt.dts != AV_NOPTS_VALUE)
4338  pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
4339  if (pkt.pts != AV_NOPTS_VALUE)
4340  pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
4341 
4342  if (pkt.pts != AV_NOPTS_VALUE)
4343  pkt.pts *= ist->ts_scale;
4344  if (pkt.dts != AV_NOPTS_VALUE)
4345  pkt.dts *= ist->ts_scale;
4346 
4348  if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
4350  pkt_dts != AV_NOPTS_VALUE && ist->next_dts == AV_NOPTS_VALUE && !copy_ts
4351  && (is->iformat->flags & AVFMT_TS_DISCONT) && ifile->last_ts != AV_NOPTS_VALUE) {
4352  int64_t delta = pkt_dts - ifile->last_ts;
4353  if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
4354  delta > 1LL*dts_delta_threshold*AV_TIME_BASE){
4355  ifile->ts_offset -= delta;
4357  "Inter stream timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
4358  delta, ifile->ts_offset);
4359  pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
4360  if (pkt.pts != AV_NOPTS_VALUE)
4361  pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
4362  }
4363  }
4364 
4365  duration = av_rescale_q(ifile->duration, ifile->time_base, ist->st->time_base);
4366  if (pkt.pts != AV_NOPTS_VALUE) {
4367  pkt.pts += duration;
4368  ist->max_pts = FFMAX(pkt.pts, ist->max_pts);
4369  ist->min_pts = FFMIN(pkt.pts, ist->min_pts);
4370  }
4371 
4372  if (pkt.dts != AV_NOPTS_VALUE)
4373  pkt.dts += duration;
4374 
4376  if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
4378  pkt_dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
4379  !copy_ts) {
4380  int64_t delta = pkt_dts - ist->next_dts;
4381  if (is->iformat->flags & AVFMT_TS_DISCONT) {
4382  if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
4383  delta > 1LL*dts_delta_threshold*AV_TIME_BASE ||
4384  pkt_dts + AV_TIME_BASE/10 < FFMAX(ist->pts, ist->dts)) {
4385  ifile->ts_offset -= delta;
4387  "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
4388  delta, ifile->ts_offset);
4389  pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
4390  if (pkt.pts != AV_NOPTS_VALUE)
4391  pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
4392  }
4393  } else {
4394  if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
4395  delta > 1LL*dts_error_threshold*AV_TIME_BASE) {
4396  av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
4397  pkt.dts = AV_NOPTS_VALUE;
4398  }
4399  if (pkt.pts != AV_NOPTS_VALUE){
4400  int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
4401  delta = pkt_pts - ist->next_dts;
4402  if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
4403  delta > 1LL*dts_error_threshold*AV_TIME_BASE) {
4404  av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
4405  pkt.pts = AV_NOPTS_VALUE;
4406  }
4407  }
4408  }
4409  }
4410 
4411  if (pkt.dts != AV_NOPTS_VALUE)
4412  ifile->last_ts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
4413 
4414  if (debug_ts) {
4415  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",
4417  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
4418  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
4419  av_ts2str(input_files[ist->file_index]->ts_offset),
4420  av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
4421  }
4422 
4423  sub2video_heartbeat(ist, pkt.pts);
4424 
4425  process_input_packet(ist, &pkt, 0);
4426 
4427 discard_packet:
4428  av_packet_unref(&pkt);
4429 
4430  return 0;
4431 }
4432 
4433 /**
4434  * Perform a step of transcoding for the specified filter graph.
4435  *
4436  * @param[in] graph filter graph to consider
4437  * @param[out] best_ist input stream where a frame would allow to continue
4438  * @return 0 for success, <0 for error
4439  */
4440 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
4441 {
4442  int i, ret;
4443  int nb_requests, nb_requests_max = 0;
4444  InputFilter *ifilter;
4445  InputStream *ist;
4446 
4447  *best_ist = NULL;
4448  ret = avfilter_graph_request_oldest(graph->graph);
4449  if (ret >= 0)
4450  return reap_filters(0);
4451 
4452  if (ret == AVERROR_EOF) {
4453  ret = reap_filters(1);
4454  for (i = 0; i < graph->nb_outputs; i++)
4455  close_output_stream(graph->outputs[i]->ost);
4456  return ret;
4457  }
4458  if (ret != AVERROR(EAGAIN))
4459  return ret;
4460 
4461  for (i = 0; i < graph->nb_inputs; i++) {
4462  ifilter = graph->inputs[i];
4463  ist = ifilter->ist;
4464  if (input_files[ist->file_index]->eagain ||
4465  input_files[ist->file_index]->eof_reached)
4466  continue;
4467  nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
4468  if (nb_requests > nb_requests_max) {
4469  nb_requests_max = nb_requests;
4470  *best_ist = ist;
4471  }
4472  }
4473 
4474  if (!*best_ist)
4475  for (i = 0; i < graph->nb_outputs; i++)
4476  graph->outputs[i]->ost->unavailable = 1;
4477 
4478  return 0;
4479 }
4480 
4481 /**
4482  * Run a single step of transcoding.
4483  *
4484  * @return 0 for success, <0 for error
4485  */
4486 static int transcode_step(void)
4487 {
4488  OutputStream *ost;
4489  InputStream *ist = NULL;
4490  int ret;
4491 
4492  ost = choose_output();
4493  if (!ost) {
4494  if (got_eagain()) {
4495  reset_eagain();
4496  av_usleep(10000);
4497  return 0;
4498  }
4499  av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
4500  return AVERROR_EOF;
4501  }
4502 
4503  if (ost->filter && !ost->filter->graph->graph) {
4505  ret = configure_filtergraph(ost->filter->graph);
4506  if (ret < 0) {
4507  av_log(NULL, AV_LOG_ERROR, "Error reinitializing filters!\n");
4508  return ret;
4509  }
4510  }
4511  }
4512 
4513  if (ost->filter && ost->filter->graph->graph) {
4514  if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
4515  return ret;
4516  if (!ist)
4517  return 0;
4518  } else if (ost->filter) {
4519  int i;
4520  for (i = 0; i < ost->filter->graph->nb_inputs; i++) {
4521  InputFilter *ifilter = ost->filter->graph->inputs[i];
4522  if (!ifilter->ist->got_output && !input_files[ifilter->ist->file_index]->eof_reached) {
4523  ist = ifilter->ist;
4524  break;
4525  }
4526  }
4527  if (!ist) {
4528  ost->inputs_done = 1;
4529  return 0;
4530  }
4531  } else {
4532  av_assert0(ost->source_index >= 0);
4533  ist = input_streams[ost->source_index];
4534  }
4535 
4536  ret = process_input(ist->file_index);
4537  if (ret == AVERROR(EAGAIN)) {
4538  if (input_files[ist->file_index]->eagain)
4539  ost->unavailable = 1;
4540  return 0;
4541  }
4542 
4543  if (ret < 0)
4544  return ret == AVERROR_EOF ? 0 : ret;
4545 
4546  return reap_filters(0);
4547 }
4548 
4549 /*
4550  * The following code is the main loop of the file converter
4551  */
4552 static int transcode(void)
4553 {
4554  int ret, i;
4555  AVFormatContext *os;
4556  OutputStream *ost;
4557  InputStream *ist;
4558  int64_t timer_start;
4559  int64_t total_packets_written = 0;
4560 
4561  ret = transcode_init();
4562  if (ret < 0)
4563  goto fail;
4564 
4565  if (stdin_interaction) {
4566  av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
4567  }
4568 
4569  timer_start = av_gettime_relative();
4570 
4571 #if HAVE_PTHREADS
4572  if ((ret = init_input_threads()) < 0)
4573  goto fail;
4574 #endif
4575 
4576  while (!received_sigterm) {
4577  int64_t cur_time= av_gettime_relative();
4578 
4579  /* if 'q' pressed, exits */
4580  if (stdin_interaction)
4581  if (check_keyboard_interaction(cur_time) < 0)
4582  break;
4583 
4584  /* check if there's any stream where output is still needed */
4585  if (!need_output()) {
4586  av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
4587  break;
4588  }
4589 
4590  ret = transcode_step();
4591  if (ret < 0 && ret != AVERROR_EOF) {
4592  char errbuf[128];
4593  av_strerror(ret, errbuf, sizeof(errbuf));
4594 
4595  av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
4596  break;
4597  }
4598 
4599  /* dump report by using the output first video and audio streams */
4600  print_report(0, timer_start, cur_time);
4601  }
4602 #if HAVE_PTHREADS
4604 #endif
4605 
4606  /* at the end of stream, we must flush the decoder buffers */
4607  for (i = 0; i < nb_input_streams; i++) {
4608  ist = input_streams[i];
4609  if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
4610  process_input_packet(ist, NULL, 0);
4611  }
4612  }
4613  flush_encoders();
4614 
4615  term_exit();
4616 
4617  /* write the trailer if needed and close file */
4618  for (i = 0; i < nb_output_files; i++) {
4619  os = output_files[i]->ctx;
4620  if (!output_files[i]->header_written) {
4622  "Nothing was written into output file %d (%s), because "
4623  "at least one of its streams received no packets.\n",
4624  i, os->filename);
4625  continue;
4626  }
4627  if ((ret = av_write_trailer(os)) < 0) {
4628  av_log(NULL, AV_LOG_ERROR, "Error writing trailer of %s: %s\n", os->filename, av_err2str(ret));
4629  if (exit_on_error)
4630  exit_program(1);
4631  }
4632  }
4633 
4634  /* dump report by using the first video and audio streams */
4635  print_report(1, timer_start, av_gettime_relative());
4636 
4637  /* close each encoder */
4638  for (i = 0; i < nb_output_streams; i++) {
4639  ost = output_streams[i];
4640  if (ost->encoding_needed) {
4641  av_freep(&ost->enc_ctx->stats_in);
4642  }
4643  total_packets_written += ost->packets_written;
4644  }
4645 
4646  if (!total_packets_written && (abort_on_flags & ABORT_ON_FLAG_EMPTY_OUTPUT)) {
4647  av_log(NULL, AV_LOG_FATAL, "Empty output\n");
4648  exit_program(1);
4649  }
4650 
4651  /* close each decoder */
4652  for (i = 0; i < nb_input_streams; i++) {
4653  ist = input_streams[i];
4654  if (ist->decoding_needed) {
4655  avcodec_close(ist->dec_ctx);
4656  if (ist->hwaccel_uninit)
4657  ist->hwaccel_uninit(ist->dec_ctx);
4658  }
4659  }
4660 
4662 
4663  /* finished ! */
4664  ret = 0;
4665 
4666  fail:
4667 #if HAVE_PTHREADS
4669 #endif
4670 
4671  if (output_streams) {
4672  for (i = 0; i < nb_output_streams; i++) {
4673  ost = output_streams[i];
4674  if (ost) {
4675  if (ost->logfile) {
4676  if (fclose(ost->logfile))
4678  "Error closing logfile, loss of information possible: %s\n",
4679  av_err2str(AVERROR(errno)));
4680  ost->logfile = NULL;
4681  }
4682  av_freep(&ost->forced_kf_pts);
4683  av_freep(&ost->apad);
4684  av_freep(&ost->disposition);
4685  av_dict_free(&ost->encoder_opts);
4686  av_dict_free(&ost->sws_dict);
4687  av_dict_free(&ost->swr_opts);
4688  av_dict_free(&ost->resample_opts);
4689  }
4690  }
4691  }
4692  return ret;
4693 }
4694 
4695 
4696 static int64_t getutime(void)
4697 {
4698 #if HAVE_GETRUSAGE
4699  struct rusage rusage;
4700 
4701  getrusage(RUSAGE_SELF, &rusage);
4702  return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
4703 #elif HAVE_GETPROCESSTIMES
4704  HANDLE proc;
4705  FILETIME c, e, k, u;
4706  proc = GetCurrentProcess();
4707  GetProcessTimes(proc, &c, &e, &k, &u);
4708  return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
4709 #else
4710  return av_gettime_relative();
4711 #endif
4712 }
4713 
4714 static int64_t getmaxrss(void)
4715 {
4716 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
4717  struct rusage rusage;
4718  getrusage(RUSAGE_SELF, &rusage);
4719  return (int64_t)rusage.ru_maxrss * 1024;
4720 #elif HAVE_GETPROCESSMEMORYINFO
4721  HANDLE proc;
4722  PROCESS_MEMORY_COUNTERS memcounters;
4723  proc = GetCurrentProcess();
4724  memcounters.cb = sizeof(memcounters);
4725  GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
4726  return memcounters.PeakPagefileUsage;
4727 #else
4728  return 0;
4729 #endif
4730 }
4731 
4732 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
4733 {
4734 }
4735 
4736 int main(int argc, char **argv)
4737 {
4738  int i, ret;
4739  int64_t ti;
4740 
4741  init_dynload();
4742 
4744 
4745  setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
4746 
4748  parse_loglevel(argc, argv, options);
4749 
4750  if(argc>1 && !strcmp(argv[1], "-d")){
4751  run_as_daemon=1;
4753  argc--;
4754  argv++;
4755  }
4756 
4758 #if CONFIG_AVDEVICE
4760 #endif
4762  av_register_all();
4764 
4765  show_banner(argc, argv, options);
4766 
4767  /* parse options and open all input/output files */
4768  ret = ffmpeg_parse_options(argc, argv);
4769  if (ret < 0)
4770  exit_program(1);
4771 
4772  if (nb_output_files <= 0 && nb_input_files == 0) {
4773  show_usage();
4774  av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
4775  exit_program(1);
4776  }
4777 
4778  /* file converter / grab */
4779  if (nb_output_files <= 0) {
4780  av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
4781  exit_program(1);
4782  }
4783 
4784 // if (nb_input_files == 0) {
4785 // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
4786 // exit_program(1);
4787 // }
4788 
4789  for (i = 0; i < nb_output_files; i++) {
4790  if (strcmp(output_files[i]->ctx->oformat->name, "rtp"))
4791  want_sdp = 0;
4792  }
4793 
4794  current_time = ti = getutime();
4795  if (transcode() < 0)
4796  exit_program(1);
4797  ti = getutime() - ti;
4798  if (do_benchmark) {
4799  av_log(NULL, AV_LOG_INFO, "bench: utime=%0.3fs\n", ti / 1000000.0);
4800  }
4801  av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n",
4804  exit_program(69);
4805 
4807  return main_return_code;
4808 }
unsigned int nb_chapters
Number of chapters in AVChapter array.
Definition: avformat.h:1556
int64_t pts
current pts of the decoded frame (in AV_TIME_BASE units)
Definition: ffmpeg.h:312
int nb_bitstream_filters
Definition: ffmpeg.h:457
#define extra_bits(eb)
Definition: intrax8.c:159
#define AV_CODEC_FLAG_INTERLACED_ME
interlaced motion estimation
Definition: avcodec.h:930
void init_dynload(void)
Initialize dynamic library loading.
Definition: cmdutils.c:119
enum AVPixelFormat(* get_format)(struct AVCodecContext *s, const enum AVPixelFormat *fmt)
callback to negotiate the pixelFormat
Definition: avcodec.h:2010
uint32_t BOOL
#define FF_DEBUG_VIS_MB_TYPE
Definition: avcodec.h:2996
static void write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost, int unqueue)
Definition: ffmpeg.c:672
int got_output
Definition: ffmpeg.h:337
#define AV_DISPOSITION_METADATA
Definition: avformat.h:873
void av_bsf_free(AVBSFContext **ctx)
Free a bitstream filter context and everything associated with it; write NULL into the supplied point...
Definition: bsf.c:36
static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
Definition: ffmpeg.c:1988
int64_t first_dts
Timestamp corresponding to the last dts sync point.
Definition: avformat.h:1065
int guess_input_channel_layout(InputStream *ist)
Definition: ffmpeg.c:2102
#define ATOMIC_VAR_INIT(value)
Definition: stdatomic.h:31
#define NULL
Definition: coverity.c:32
int frame_number
Definition: ffmpeg.h:444
const struct AVCodec * codec
Definition: avcodec.h:1741
Definition: ffmpeg.h:421
AVRational framerate
Definition: avcodec.h:3429
static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output, int eof, int *decode_failed)
Definition: ffmpeg.c:2374
enum AVFieldOrder field_order
Video only.
Definition: avcodec.h:4147
static void do_subtitle_out(OutputFile *of, OutputStream *ost, AVSubtitle *sub)
Definition: ffmpeg.c:953
enum HWAccelID active_hwaccel_id
Definition: ffmpeg.h:365
const char * s
Definition: avisynth_c.h:768
Bytestream IO Context.
Definition: avio.h:155
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
static enum AVPixelFormat pix_fmt
int64_t recording_time
desired length of the resulting file in microseconds == AV_TIME_BASE units
Definition: ffmpeg.h:556
void term_init(void)
Definition: ffmpeg.c:373
int64_t avio_size(AVIOContext *s)
Get the filesize.
Definition: aviobuf.c:321
AVCodecParameters * par_out
Parameters of the output stream.
Definition: avcodec.h:5864
void av_bprintf(AVBPrint *buf, const char *fmt,...)
Definition: bprint.c:94
int64_t av_frame_get_pkt_duration(const AVFrame *frame)
uint8_t * name
Definition: ffmpeg.h:259
int nb_outputs
Definition: ffmpeg.h:288
void av_buffer_unref(AVBufferRef **buf)
Free a given reference and automatically free the buffer if there are no more references to it...
Definition: buffer.c:125
int size
AVDictionary * swr_opts
Definition: ffmpeg.h:504
#define DECODING_FOR_FILTER
Definition: ffmpeg.h:298
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2333
#define av_realloc_f(p, o, n)
This structure describes decoded (raw) audio or video data.
Definition: frame.h:187
int avfilter_graph_queue_command(AVFilterGraph *graph, const char *target, const char *cmd, const char *arg, int flags, double ts)
Queue a command for one or more filter instances.
static int init_output_stream_streamcopy(OutputStream *ost)
Definition: ffmpeg.c:3027
void term_exit(void)
Definition: ffmpeg.c:315
int stream_copy
Definition: ffmpeg.h:509
int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt)
Write a packet to an output media file ensuring correct interleaving.
Definition: mux.c:1245
int x
top left corner of pict, undefined when pict is not set
Definition: avcodec.h:4008
AVIOInterruptCB interrupt_callback
Custom interrupt callbacks for the I/O layer.
Definition: avformat.h:1605
#define atomic_store(object, desired)
Definition: stdatomic.h:85
AVOption.
Definition: opt.h:246
AVRational frame_rate
Definition: ffmpeg.h:473
int64_t * forced_kf_pts
Definition: ffmpeg.h:483
void av_thread_message_queue_set_err_recv(AVThreadMessageQueue *mq, int err)
Set the receiving error code.
static void flush(AVCodecContext *avctx)
static void sub2video_flush(InputStream *ist)
Definition: ffmpeg.c:295
uint64_t error[AV_NUM_DATA_POINTERS]
error
Definition: avcodec.h:3071
AVBufferRef * hw_frames_ctx
Definition: ffmpeg.h:372
char * filters
filtergraph associated to the -filter option
Definition: ffmpeg.h:499
#define AV_CODEC_FLAG_INTERLACED_DCT
Use interlaced DCT.
Definition: avcodec.h:909
static int process_input(int file_index)
Definition: ffmpeg.c:4189
int exit_on_error
Definition: ffmpeg_opt.c:115
int64_t cfr_next_pts
Definition: ffmpeg.h:322
const char * fmt
Definition: avisynth_c.h:769
static int init_output_stream(OutputStream *ost, char *error, int error_len)
Definition: ffmpeg.c:3415
static atomic_int transcode_init_done
Definition: ffmpeg.c:323
misc image utilities
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
int64_t bit_rate
the average bitrate
Definition: avcodec.h:1797
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
Main libavfilter public API header.
int64_t pos
byte position in stream, -1 if unknown
Definition: avcodec.h:1677
uint8_t * bsf_extradata_updated
Definition: ffmpeg.h:458
#define AV_DICT_DONT_OVERWRITE
Don&#39;t overwrite existing entries.
Definition: dict.h:79
static int run_as_daemon
Definition: ffmpeg.c:131
Memory buffer source API.
const char * desc
Definition: nvenc.c:60
void av_log_set_level(int level)
Set the log level.
Definition: log.c:391
AVRational framerate
Definition: ffmpeg.h:329
AVRational sample_aspect_ratio
Video only.
Definition: avcodec.h:4142
int avcodec_receive_packet(AVCodecContext *avctx, AVPacket *avpkt)
Read encoded data from the encoder.
Definition: utils.c:3034
int height
Definition: ffmpeg.h:243
AVCodecParserContext * parser
Definition: ffmpeg.h:525
static int64_t cur_time
Definition: ffserver.c:252
int64_t max_pts
Definition: ffmpeg.h:318
int decoding_needed
Definition: ffmpeg.h:296
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition: avcodec.h:4066
void sub2video_update(InputStream *ist, AVSubtitle *sub)
Definition: ffmpeg.c:232
const struct AVBitStreamFilter * filter
The bitstream filter this context is an instance of.
Definition: avcodec.h:5839
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown)
Definition: avformat.h:959
void av_codec_set_pkt_timebase(AVCodecContext *avctx, AVRational val)
int num
Numerator.
Definition: rational.h:59
The bitstream filter state.
Definition: avcodec.h:5830
static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
Definition: ffmpeg.c:1647
#define vsnprintf
Definition: snprintf.h:36
int rotate_overridden
Definition: ffmpeg.h:477
int index
stream index in AVFormatContext
Definition: avformat.h:890
int size
Definition: avcodec.h:1658
static int64_t getmaxrss(void)
Definition: ffmpeg.c:4714
int max_muxing_queue_size
Definition: ffmpeg.h:540
const char * b
Definition: vf_curves.c:113
static int nb_frames_dup
Definition: ffmpeg.c:132
static InputStream * get_input_stream(OutputStream *ost)
Definition: ffmpeg.c:2932
#define AVIO_FLAG_WRITE
write-only
Definition: avio.h:621
#define AV_DISPOSITION_DUB
Definition: avformat.h:837
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown) That is the width of a pixel divided by the height of the pixel...
Definition: avcodec.h:2143
int eagain
Definition: ffmpeg.h:392
void avfilter_graph_free(AVFilterGraph **graph)
Free a graph, destroy its links, and set *graph to NULL.
void show_banner(int argc, char **argv, const OptionDef *options)
Print the program banner to stderr.
Definition: cmdutils.c:1150
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1960
struct InputStream::@36 prev_sub
static int init_output_stream_encode(OutputStream *ost)
Definition: ffmpeg.c:3253
static void abort_codec_experimental(AVCodec *c, int encoder)
Definition: ffmpeg.c:641
#define AV_DISPOSITION_HEARING_IMPAIRED
stream for hearing impaired audiences
Definition: avformat.h:849
void(* hwaccel_uninit)(AVCodecContext *s)
Definition: ffmpeg.h:367
int quality
Definition: ffmpeg.h:538
unsigned num_rects
Definition: avcodec.h:4046
AVFrame * filter_frame
Definition: ffmpeg.h:303
static int transcode_init(void)
Definition: ffmpeg.c:3613
static int compare_int64(const void *a, const void *b)
Definition: ffmpeg.c:2939
static int process_input_packet(InputStream *ist, const AVPacket *pkt, int no_eof)
Definition: ffmpeg.c:2595
char * stats_in
pass2 encoding statistics input buffer Concatenated stuff from stats_out of pass1 should be placed he...
Definition: avcodec.h:2909
int do_benchmark_all
Definition: ffmpeg_opt.c:108
#define AV_DISPOSITION_CLEAN_EFFECTS
stream without voice
Definition: avformat.h:851
static int init_input_threads(void)
Definition: ffmpeg.c:4028
int last_dropped
Definition: ffmpeg.h:467
int av_usleep(unsigned usec)
Sleep for a period of time.
Definition: time.c:84
int av_expr_parse(AVExpr **expr, const char *s, const char *const *const_names, const char *const *func1_names, double(*const *funcs1)(void *, double), const char *const *func2_names, double(*const *funcs2)(void *, double, double), int log_offset, void *log_ctx)
Parse an expression.
Definition: eval.c:661
discard all
Definition: avcodec.h:822
AVPacketSideData * side_data
An array of side data that applies to the whole stream (i.e.
Definition: avformat.h:999
int64_t input_ts_offset
Definition: ffmpeg.h:398
int do_hex_dump
Definition: ffmpeg_opt.c:109
static AVPacket pkt
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:3133
int nb_input_streams
Definition: ffmpeg.c:145
void avcodec_register_all(void)
Register all the codecs, parsers and bitstream filters which were enabled at configuration time...
Definition: allcodecs.c:720
const char * name
Definition: ffmpeg.h:73
intptr_t atomic_int
Definition: stdatomic.h:55
int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub, int *got_sub_ptr, AVPacket *avpkt)
Decode a subtitle message.
Definition: utils.c:2672
static void report_new_stream(int input_index, AVPacket *pkt)
Definition: ffmpeg.c:3598
Picture data structure.
Definition: avcodec.h:3975
#define src
Definition: vp8dsp.c:254
uint64_t packets_written
Definition: ffmpeg.h:532
AVCodec.
Definition: avcodec.h:3681
#define VSYNC_VFR
Definition: ffmpeg.h:54
int nb_dts_buffer
Definition: ffmpeg.h:384
#define AVFMT_TS_NONSTRICT
Format does not require strictly increasing timestamps, but they must still be monotonic.
Definition: avformat.h:496
This struct describes the properties of an encoded stream.
Definition: avcodec.h:4058
int print_stats
Definition: ffmpeg_opt.c:117
int av_bsf_init(AVBSFContext *ctx)
Prepare the filter for use, after all the parameters and options have been set.
Definition: bsf.c:135
float dts_error_threshold
Definition: ffmpeg_opt.c:100
int64_t start_time
start time in microseconds == AV_TIME_BASE units
Definition: ffmpeg.h:557
int av_bprint_finalize(AVBPrint *buf, char **ret_str)
Finalize a print buffer.
Definition: bprint.c:235
int index
Definition: ffmpeg.h:279
uint64_t data_size
Definition: ffmpeg.h:530
static int decode_interrupt_cb(void *ctx)
Definition: ffmpeg.c:459
AVBSFContext ** bsf_ctx
Definition: ffmpeg.h:459
int av_fifo_generic_write(AVFifoBuffer *f, void *src, int size, int(*func)(void *, void *, int))
Feed data from a user-supplied callback to an AVFifoBuffer.
Definition: fifo.c:122
#define AV_DISPOSITION_KARAOKE
Definition: avformat.h:841
struct FilterGraph * graph
Definition: ffmpeg.h:234
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avcodec.h:1869
static int send_frame_to_filters(InputStream *ist, AVFrame *decoded_frame)
Definition: ffmpeg.c:2284
Undefined.
Definition: avutil.h:273
AVSubtitleRect ** rects
Definition: avcodec.h:4047
int encoding_needed
Definition: ffmpeg.h:443
static void update_benchmark(const char *fmt,...)
Definition: ffmpeg.c:646
static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
Definition: ffmpeg.c:4732
AVBufferRef * hw_frames_ctx
For hwaccel-format frames, this should be a reference to the AVHWFramesContext describing the frame...
Definition: frame.h:515
static int check_keyboard_interaction(int64_t cur_time)
Definition: ffmpeg.c:3853
Format I/O context.
Definition: avformat.h:1349
uint64_t samples_decoded
Definition: ffmpeg.h:381
memory buffer sink API for audio and video
struct InputStream * ist
Definition: ffmpeg.h:233
#define AV_RL64
Definition: intreadwrite.h:173
unsigned int nb_stream_indexes
Definition: avformat.h:1281
#define AV_LOG_QUIET
Print no output.
Definition: log.h:158
enum HWAccelID id
Definition: ffmpeg.h:75
int64_t cur_dts
Definition: avformat.h:1066
int w
width of pict, undefined when pict is not set
Definition: avcodec.h:4010
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:72
#define AV_CODEC_CAP_DELAY
Encoder or decoder requires flushing with NULL input at the end in order to give the complete and cor...
Definition: avcodec.h:1019
uint64_t frames_decoded
Definition: ffmpeg.h:380
int header_written
Definition: ffmpeg.h:562
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
AVFilterGraph * graph
Definition: ffmpeg.h:282
int av_buffersink_get_sample_rate(const AVFilterContext *ctx)
Public dictionary API.
char * logfile_prefix
Definition: ffmpeg.h:494
static uint8_t * subtitle_out
Definition: ffmpeg.c:142
int av_bsf_receive_packet(AVBSFContext *ctx, AVPacket *pkt)
Retrieve a filtered packet.
Definition: bsf.c:199
static int main_return_code
Definition: ffmpeg.c:325
static int ifilter_send_eof(InputFilter *ifilter)
Definition: ffmpeg.c:2229
static int64_t start_time
Definition: ffplay.c:328
int copy_initial_nonkeyframes
Definition: ffmpeg.h:519
void register_exit(void(*cb)(int ret))
Register a program-specific cleanup routine.
Definition: cmdutils.c:130
static int init_output_bsfs(OutputStream *ost)
Definition: ffmpeg.c:2991
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
enum AVSampleFormat sample_fmt
audio sample format
Definition: avcodec.h:2502
int64_t * dts_buffer
Definition: ffmpeg.h:383
int flags
can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_GLOBALHEADER, AVFMT_NOTIMESTAMPS, AVFMT_VARIABLE_FPS, AVFMT_NODIMENSIONS, AVFMT_NOSTREAMS, AVFMT_ALLOW_FLUSH, AVFMT_TS_NONSTRICT, AVFMT_TS_NEGATIVE
Definition: avformat.h:543
uint8_t
#define av_malloc(s)
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:150
Opaque data information usually continuous.
Definition: avutil.h:203
AVDictionary * sws_dict
Definition: ffmpeg.h:503
int av_thread_message_queue_recv(AVThreadMessageQueue *mq, void *msg, unsigned flags)
Receive a message from the queue.
int width
Video only.
Definition: avcodec.h:4132
static void * input_thread(void *arg)
Definition: ffmpeg.c:3967
int av_parser_change(AVCodecParserContext *s, AVCodecContext *avctx, uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size, int keyframe)
Definition: parser.c:205
float delta
static void sub2video_push_ref(InputStream *ist, int64_t pts)
Definition: ffmpeg.c:219
AVOptions.
int subtitle_header_size
Definition: avcodec.h:3366
int flags
Can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_SHOW_IDS, AVFMT_GENERIC_INDEX, AVFMT_TS_DISCONT, AVFMT_NOBINSEARCH, AVFMT_NOGENSEARCH, AVFMT_NO_BYTE_SEEK, AVFMT_SEEK_TO_PTS.
Definition: avformat.h:678
enum AVCodecID av_codec_get_id(const struct AVCodecTag *const *tags, unsigned int tag)
Get the AVCodecID for the given codec tag tag.
miscellaneous OS support macros and functions.
timestamp utils, mostly useful for debugging/logging purposes
int avformat_transfer_internal_stream_timing_info(const AVOutputFormat *ofmt, AVStream *ost, const AVStream *ist, enum AVTimebaseSource copy_tb)
Transfer internal timing information from one stream to another.
Definition: utils.c:5396
int stdin_interaction
Definition: ffmpeg_opt.c:119
FILE * logfile
Definition: ffmpeg.h:495
AVDictionary * opts
Definition: ffmpeg.h:554
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
#define media_type_string
Definition: cmdutils.h:584
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
Definition: avcodec.h:1675
This side data contains a 3x3 transformation matrix describing an affine transformation that needs to...
Definition: avcodec.h:1465
int av_thread_message_queue_send(AVThreadMessageQueue *mq, void *msg, unsigned flags)
Send a message on the queue.
#define ECHO(name, type, min, max)
Definition: af_aecho.c:186
static const HWAccel * get_hwaccel(enum AVPixelFormat pix_fmt)
Definition: ffmpeg.c:2815
static int need_output(void)
Definition: ffmpeg.c:3786
int av_frame_ref(AVFrame *dst, const AVFrame *src)
Set up a new reference to the data described by the source frame.
Definition: frame.c:388
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:271
int av_fifo_space(const AVFifoBuffer *f)
Return the amount of space in bytes in the AVFifoBuffer, that is the amount of data you can write int...
Definition: fifo.c:82
int nb_side_data
The number of elements in the AVStream.side_data array.
Definition: avformat.h:1003
static double psnr(double d)
Definition: ffmpeg.c:1355
int do_benchmark
Definition: ffmpeg_opt.c:107
int audio_sync_method
Definition: ffmpeg_opt.c:103
static void filter(int16_t *output, ptrdiff_t out_stride, int16_t *low, ptrdiff_t low_stride, int16_t *high, ptrdiff_t high_stride, int len, uint8_t clip)
Definition: cfhd.c:80
int shortest
Definition: ffmpeg.h:560
AVStream ** streams
A list of all streams in the file.
Definition: avformat.h:1417
int64_t duration
Definition: movenc.c:63
int avcodec_parameters_to_context(AVCodecContext *codec, const AVCodecParameters *par)
Fill the codec context based on the values from the supplied codec parameters.
Definition: utils.c:4267
int av_codec_get_tag2(const struct AVCodecTag *const *tags, enum AVCodecID id, unsigned int *tag)
Get the codec tag for the given codec id.
void avfilter_register_all(void)
Initialize the filter system.
Definition: allfilters.c:382
static int64_t getutime(void)
Definition: ffmpeg.c:4696
static AVFrame * frame
void av_pkt_dump_log2(void *avcl, int level, const AVPacket *pkt, int dump_payload, const AVStream *st)
Send a nice dump of a packet to the log.
Definition: dump.c:113
AVRational av_buffersink_get_frame_rate(const AVFilterContext *ctx)
const char * name
Definition: avcodec.h:5880
AVDictionaryEntry * av_dict_get(const AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags)
Get a dictionary entry with matching key.
Definition: dict.c:40
static void finish(void)
Definition: movenc.c:344
int nb_streams
Definition: ffmpeg.h:405
pthread_t thread
Definition: ffmpeg.h:413
uint8_t * data
Definition: avcodec.h:1657
static double av_q2d(AVRational a)
Convert an AVRational to a double.
Definition: rational.h:104
enum AVMediaType type
Definition: ffmpeg.h:236
static void set_tty_echo(int on)
Definition: ffmpeg.c:3841
AVDictionary * resample_opts
Definition: ffmpeg.h:505
static void parse_forced_key_frames(char *kf, OutputStream *ost, AVCodecContext *avctx)
Definition: ffmpeg.c:3190
static int flags
Definition: log.c:57
#define FFMIN3(a, b, c)
Definition: common.h:97
AVFilterContext * filter
Definition: ffmpeg.h:256
static int seek_to_start(InputFile *ifile, AVFormatContext *is)
Definition: ffmpeg.c:4121
int avformat_network_init(void)
Do global initialization of network components.
Definition: utils.c:4714
char av_get_picture_type_char(enum AVPictureType pict_type)
Return a single letter to describe the given picture type pict_type.
Definition: utils.c:91
int * formats
Definition: ffmpeg.h:273
#define ff_dlog(a,...)
int nb_input_files
Definition: ffmpeg.c:147
#define AVERROR_EOF
End of file.
Definition: error.h:55
static int read_key(void)
Definition: ffmpeg.c:408
static int reap_filters(int flush)
Get and encode new output from any of the filtergraphs, without causing activity. ...
Definition: ffmpeg.c:1424
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
#define lrintf(x)
Definition: libm_mips.h:70
static volatile int ffmpeg_exited
Definition: ffmpeg.c:324
void av_fifo_free(AVFifoBuffer *f)
Free an AVFifoBuffer.
Definition: fifo.c:55
int av_sdp_create(AVFormatContext *ac[], int n_files, char *buf, int size)
Generate an SDP for an RTP session.
Definition: sdp.c:827
static void do_video_stats(OutputStream *ost, int frame_size)
Definition: ffmpeg.c:1360
uint8_t * data
Definition: avcodec.h:1601
int interlaced_frame
The content of the picture is interlaced.
Definition: frame.h:325
void parse_loglevel(int argc, char **argv, const OptionDef *options)
Find the &#39;-loglevel&#39; option in the command line args and apply it.
Definition: cmdutils.c:505
int64_t av_frame_get_best_effort_timestamp(const AVFrame *frame)
Accessors for some AVFrame fields.
int h
height of pict, undefined when pict is not set
Definition: avcodec.h:4011
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
Definition: avio.h:525
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
Definition: rational.c:35
AVCodec * dec
Definition: ffmpeg.h:301
AVBufferRef * av_buffersink_get_hw_frames_ctx(const AVFilterContext *ctx)
enum AVDiscard discard
selects which program to discard and which to feed to the caller
Definition: avformat.h:1279
char * stats_out
pass1 encoding statistics output buffer
Definition: avcodec.h:2901
void avio_write(AVIOContext *s, const unsigned char *buf, int size)
Definition: aviobuf.c:205
int top_field_first
Definition: ffmpeg.h:330
#define AVFMT_FLAG_BITEXACT
When muxing, try to avoid writing any random/volatile data to the output.
Definition: avformat.h:1477
int nb_output_streams
Definition: ffmpeg.c:150
int file_index
Definition: ffmpeg.h:292
void * av_realloc_array(void *ptr, size_t nmemb, size_t size)
Allocate, reallocate, or free an array.
Definition: mem.c:184
const OptionDef options[]
Definition: ffserver.c:3948
enum AVChromaLocation chroma_sample_location
This defines the location of chroma samples.
Definition: avcodec.h:2476
unsigned int * stream_index
Definition: avformat.h:1280
int av_buffersink_get_h(const AVFilterContext *ctx)
struct InputStream::sub2video sub2video
int av_buffersink_get_format(const AVFilterContext *ctx)
int wrap_correction_done
Definition: ffmpeg.h:313
int64_t filter_in_rescale_delta_last
Definition: ffmpeg.h:315
uint64_t channel_layout
Audio only.
Definition: avcodec.h:4168
#define av_log(a,...)
static void sub2video_heartbeat(InputStream *ist, int64_t pts)
Definition: ffmpeg.c:266
#define AV_DISPOSITION_CAPTIONS
To specify text track kind (different from subtitles default).
Definition: avformat.h:871
#define AV_BUFFERSINK_FLAG_NO_REQUEST
Tell av_buffersink_get_buffer_ref() not to request a frame from its input.
Definition: buffersink.h:60
struct AVOutputFormat * oformat
The output container format.
Definition: avformat.h:1368
int av_packet_ref(AVPacket *dst, const AVPacket *src)
Setup a new reference to the data described by a given packet.
Definition: avpacket.c:598
int64_t next_dts
Definition: ffmpeg.h:308
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1689
attribute_deprecated int avpicture_fill(AVPicture *picture, const uint8_t *ptr, enum AVPixelFormat pix_fmt, int width, int height)
Definition: avpicture.c:37
void av_buffer_default_free(void *opaque, uint8_t *data)
Default free callback, which calls av_free() on the buffer data.
Definition: buffer.c:62
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
Definition: mathematics.c:142
void av_dump_format(AVFormatContext *ic, int index, const char *url, int is_output)
Print detailed information about the input or output format, such as duration, bitrate, streams, container, programs, metadata, side data, codec and time base.
Definition: dump.c:544
AVFifoBuffer * sub_queue
queue of AVSubtitle* before filter init
Definition: ffmpeg.h:345
Main libavdevice API header.
Callback for checking whether to abort blocking functions.
Definition: avio.h:58
int avcodec_close(AVCodecContext *avctx)
Close a given AVCodecContext and free all the data associated with it (but not the AVCodecContext its...
Definition: utils.c:3066
static void output_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost)
Definition: ffmpeg.c:818
static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output, int *decode_failed)
Definition: ffmpeg.c:2506
AVRational av_stream_get_codec_timebase(const AVStream *st)
Get the internal codec timebase from a stream.
Definition: utils.c:5458
libswresample public header
enum AVCodecID id
Definition: avcodec.h:3695
int(* hwaccel_retrieve_data)(AVCodecContext *s, AVFrame *frame)
Definition: ffmpeg.h:369
AVRational sample_aspect_ratio
Definition: ffmpeg.h:244
const AVCodecDefault * defaults
Private codec-specific defaults.
Definition: avcodec.h:3742
int rate_emu
Definition: ffmpeg.h:408
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
Copy the contents of src to dst.
Definition: utils.c:4192
int width
width and height of the video frame
Definition: frame.h:239
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
#define AV_DICT_MATCH_CASE
Only get an entry with exact-case key match.
Definition: dict.h:69
int has_b_frames
Size of the frame reordering buffer in the decoder.
Definition: avcodec.h:2054
int sample_rate
Definition: ffmpeg.h:246
static void finish_output_stream(OutputStream *ost)
Definition: ffmpeg.c:1405
static void reset_eagain(void)
Definition: ffmpeg.c:4092
enum AVPixelFormat hwaccel_pix_fmt
Definition: ffmpeg.h:370
void av_packet_rescale_ts(AVPacket *pkt, AVRational tb_src, AVRational tb_dst)
Convert valid timing fields (timestamps / durations) in a packet from one timebase to another...
Definition: avpacket.c:652
int ffmpeg_parse_options(int argc, char **argv)
Definition: ffmpeg_opt.c:3216
FilterGraph ** filtergraphs
Definition: ffmpeg.c:154
const AVIOInterruptCB int_cb
Definition: ffmpeg.c:464
AVFilterContext * filter
Definition: ffmpeg.h:232
#define AVFMT_TS_DISCONT
Format allows timestamp discontinuities.
Definition: avformat.h:488
#define atomic_load(object)
Definition: stdatomic.h:93
int64_t start
Definition: ffmpeg.h:305
int loop
Definition: ffmpeg.h:394
int y
top left corner of pict, undefined when pict is not set
Definition: avcodec.h:4009
av_default_item_name
uint64_t nb_packets
Definition: ffmpeg.h:378
#define AVERROR(e)
Definition: error.h:43
int64_t last_mux_dts
Definition: ffmpeg.h:453
int video_sync_method
Definition: ffmpeg_opt.c:104
int format
Definition: ffmpeg.h:241
int av_opt_eval_flags(void *obj, const AVOption *o, const char *val, int *flags_out)
uint8_t * av_packet_get_side_data(const AVPacket *pkt, enum AVPacketSideDataType type, int *size)
Get side information from packet.
Definition: avpacket.c:350
static int64_t decode_error_stat[2]
Definition: ffmpeg.c:135
#define VSYNC_VSCFR
Definition: ffmpeg.h:55
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:163
char * sdp_filename
Definition: ffmpeg_opt.c:96
#define av_ts2timestr(ts, tb)
Convenience macro, the return value should be used only directly in function arguments but never stan...
Definition: timestamp.h:76
#define FALSE
Definition: windows2linux.h:37
int last_nb0_frames[3]
Definition: ffmpeg.h:468
void av_bprint_init(AVBPrint *buf, unsigned size_init, unsigned size_max)
Definition: bprint.c:69
int video_delay
Video only.
Definition: avcodec.h:4161
int avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame)
Return decoded output data from a decoder.
Definition: utils.c:2923
const char * r
Definition: vf_curves.c:111
const char *const forced_keyframes_const_names[]
Definition: ffmpeg.c:117
int capabilities
Codec capabilities.
Definition: avcodec.h:3700
struct AVCodecParserContext * av_stream_get_parser(const AVStream *s)
Definition: utils.c:130
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
int av_fifo_generic_read(AVFifoBuffer *f, void *dest, int buf_size, void(*func)(void *, void *, int))
Feed data from an AVFifoBuffer to a user-supplied callback.
Definition: fifo.c:213
unsigned int nb_programs
Definition: avformat.h:1506
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values. ...
Definition: dict.c:203
preferred ID for decoding MPEG audio layer 1, 2 or 3
Definition: avcodec.h:550
enum AVMediaType codec_type
General type of the encoded data.
Definition: avcodec.h:4062
AVBufferRef * buf
A reference to the reference-counted buffer where the packet data is stored.
Definition: avcodec.h:1640
const char * arg
Definition: jacosubdec.c:66
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:1827
int av_opt_set_int(void *obj, const char *name, int64_t val, int search_flags)
Definition: opt.c:558
int av_frame_get_decode_error_flags(const AVFrame *frame)
AVChapter ** chapters
Definition: avformat.h:1557
#define AV_LOG_SKIP_REPEATED
Skip repeated messages, this requires the user app to use av_log() instead of (f)printf as the 2 woul...
Definition: log.h:359
Round to nearest and halfway cases away from zero.
Definition: mathematics.h:84
AVRational time_base_in
The timebase used for the timestamps of the input packets.
Definition: avcodec.h:5870
#define AV_PIX_FMT_FLAG_HWACCEL
Pixel format is an HW accelerated format.
Definition: pixdesc.h:140
simple assert() macros that are a bit more flexible than ISO C assert().
enum AVPacketSideDataType type
Definition: avcodec.h:1603
int av_log_get_level(void)
Get the current log level.
Definition: log.c:386
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:222
const char * name
Name of the codec implementation.
Definition: avcodec.h:3688
static int check_recording_time(OutputStream *ost)
Definition: ffmpeg.c:880
AVBufferRef * av_buffer_create(uint8_t *data, int size, void(*free)(void *opaque, uint8_t *data), void *opaque, int flags)
Create an AVBuffer from an existing array.
Definition: buffer.c:28
void remove_avoptions(AVDictionary **a, AVDictionary *b)
Definition: ffmpeg.c:623
int eof
Definition: ffmpeg.h:252
int force_fps
Definition: ffmpeg.h:475
AVRational avg_frame_rate
Average framerate.
Definition: avformat.h:970
New fields can be added to the end with minor version bumps.
Definition: avformat.h:1276
#define FFMAX(a, b)
Definition: common.h:94
int attribute_align_arg av_buffersink_get_frame_flags(AVFilterContext *ctx, AVFrame *frame, int flags)
Get a frame with filtered data from sink and put it in frame.
Definition: buffersink.c:119
void avcodec_parameters_free(AVCodecParameters **par)
Free an AVCodecParameters instance and everything associated with it and write NULL to the supplied p...
Definition: utils.c:4181
int qp_hist
Definition: ffmpeg_opt.c:118
size_t av_strlcpy(char *dst, const char *src, size_t size)
Copy the string src to dst, but no more than size - 1 bytes, and null-terminate dst.
Definition: avstring.c:83
#define fail()
Definition: checkasm.h:89
float frame_drop_threshold
Definition: ffmpeg_opt.c:105
#define AV_CODEC_CAP_VARIABLE_FRAME_SIZE
Audio encoder supports receiving a different number of samples in each call.
Definition: avcodec.h:1073
int64_t error[4]
Definition: ffmpeg.h:549
int flags
A combination of AV_PKT_FLAG values.
Definition: avcodec.h:1663
const AVCodecDescriptor * avcodec_descriptor_get(enum AVCodecID id)
Definition: codec_desc.c:3063
uint64_t channel_layout
Audio channel layout.
Definition: avcodec.h:2545
int av_compare_ts(int64_t ts_a, AVRational tb_a, int64_t ts_b, AVRational tb_b)
Compare two timestamps each in its own time base.
Definition: mathematics.c:147
uint32_t end_display_time
Definition: avcodec.h:4045
static int want_sdp
Definition: ffmpeg.c:137
int64_t pts
Same as packet pts, in AV_TIME_BASE.
Definition: avcodec.h:4048
OutputFilter * filter
Definition: ffmpeg.h:497
static void check_decode_result(InputStream *ist, int *got_output, int ret)
Definition: ffmpeg.c:2122
uint64_t channel_layout
Channel layout of the audio data.
Definition: frame.h:356
AVRational frame_aspect_ratio
Definition: ffmpeg.h:480
#define AV_DISPOSITION_LYRICS
Definition: avformat.h:840
const AVOption * av_opt_find(void *obj, const char *name, const char *unit, int opt_flags, int search_flags)
Look for an option in an object.
Definition: opt.c:1594
#define FFDIFFSIGN(x, y)
Comparator.
Definition: common.h:92
#define AV_DISPOSITION_FORCED
Track should be used during playback by default.
Definition: avformat.h:848
common internal API header
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:106
AVRational mux_timebase
Definition: ffmpeg.h:455
unsigned int nb_streams
Number of elements in AVFormatContext.streams.
Definition: avformat.h:1405
AVDictionary * opts
Definition: movenc.c:50
AVCodecContext * parser_avctx
Definition: ffmpeg.h:526
int block_align
Audio only.
Definition: avcodec.h:4183
static int nb_frames_drop
Definition: ffmpeg.c:134
A bitmap, pict will be set.
Definition: avcodec.h:3990
int linesize[4]
Definition: avcodec.h:4026
int nb_output_files
Definition: ffmpeg.c:152
int seekable
A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable.
Definition: avio.h:251
int void avio_flush(AVIOContext *s)
Force flushing of buffered data.
Definition: aviobuf.c:225
int channels
number of audio channels, only used for audio.
Definition: frame.h:483
audio channel layout utility functions
int is_cfr
Definition: ffmpeg.h:474
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:261
static int transcode(void)
Definition: ffmpeg.c:4552
#define AV_CODEC_FLAG_BITEXACT
Use only bitexact stuff (except (I)DCT).
Definition: avcodec.h:921
int flags
Frame flags, a combination of AV_FRAME_FLAGS.
Definition: frame.h:416
char filename[1024]
input or output filename
Definition: avformat.h:1425
#define av_assert1(cond)
assert() equivalent, that does not lie in speed critical code.
Definition: avassert.h:53
int64_t av_rescale(int64_t a, int64_t b, int64_t c)
Rescale a 64-bit integer with rounding to nearest.
Definition: mathematics.c:129
#define AV_TIME_BASE
Internal time base represented as integer.
Definition: avutil.h:254
av_warn_unused_result int avformat_write_header(AVFormatContext *s, AVDictionary **options)
Allocate the stream private data and write the stream header to an output media file.
Definition: mux.c:519
#define FFMIN(a, b)
Definition: common.h:96
AVPacketSideData * coded_side_data
Additional data associated with the entire coded stream.
Definition: avcodec.h:3560
uint64_t * channel_layouts
Definition: ffmpeg.h:274
#define VSYNC_AUTO
Definition: ffmpeg.h:51
void av_log_set_callback(void(*callback)(void *, int, const char *, va_list))
Set the logging callback.
Definition: log.c:406
attribute_deprecated int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src)
Copy the settings of the source AVCodecContext into the destination AVCodecContext.
Definition: options.c:216
int saw_first_ts
Definition: ffmpeg.h:327
AVCodecContext * avcodec_alloc_context3(const AVCodec *codec)
Allocate an AVCodecContext and set its fields to default values.
Definition: options.c:157
int abort_on_flags
Definition: ffmpeg_opt.c:116
This side data contains quality related information from the encoder.
Definition: avcodec.h:1489
Immediately push the frame to the output.
Definition: buffersrc.h:46
#define AV_DICT_DONT_STRDUP_VAL
Take ownership of a value that&#39;s been allocated with av_malloc() or another memory allocation functio...
Definition: dict.h:76
#define FFSIGN(a)
Definition: common.h:73
struct OutputStream * ost
Definition: ffmpeg.h:257
int width
picture width / height.
Definition: avcodec.h:1919
PVOID HANDLE
char * apad
Definition: ffmpeg.h:506
AVBufferRef * hw_frames_ctx
A reference to the AVHWFramesContext describing the input (for encoding) or output (decoding) frames...
Definition: avcodec.h:3585
int64_t nb_samples
Definition: ffmpeg.h:324
AVRational time_base_out
The timebase used for the timestamps of the output packets.
Definition: avcodec.h:5876
double forced_keyframes_expr_const_values[FKF_NB]
Definition: ffmpeg.h:488
int av_bsf_send_packet(AVBSFContext *ctx, AVPacket *pkt)
Submit a packet for filtering.
Definition: bsf.c:176
int64_t duration
Definition: ffmpeg.h:395
#define AV_FRAME_FLAG_CORRUPT
The frame data may be corrupted, e.g.
Definition: frame.h:404
const char * name
Definition: avformat.h:524
int width
Definition: ffmpeg.h:243
int32_t
#define av_err2str(errnum)
Convenience macro, the return value should be used only directly in function arguments but never stan...
Definition: error.h:119
AVFormatContext * ctx
Definition: movenc.c:48
void av_parser_close(AVCodecParserContext *s)
Definition: parser.c:240
#define AV_CODEC_FLAG_PSNR
error[?] variables will be set during encoding.
Definition: avcodec.h:900
int ifilter_parameters_from_frame(InputFilter *ifilter, const AVFrame *frame)
#define AV_CODEC_FLAG_PASS1
Use internal 2pass ratecontrol in first pass mode.
Definition: avcodec.h:884
static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output, int *decode_failed)
Definition: ffmpeg.c:2310
int nb_filtergraphs
Definition: ffmpeg.c:155
static av_always_inline int pthread_join(pthread_t thread, void **value_ptr)
Definition: os2threads.h:88
int64_t last_ts
Definition: ffmpeg.h:401
#define TRUE
Definition: windows2linux.h:33
static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
Definition: ffmpeg.c:4055
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:72
int quality
quality (between 1 (good) and FF_LAMBDA_MAX (bad))
Definition: frame.h:301
int do_pkt_dump
Definition: ffmpeg_opt.c:110
int64_t max_frames
Definition: ffmpeg.h:464
#define AV_RL32
Definition: intreadwrite.h:146
static void term_exit_sigsafe(void)
Definition: ffmpeg.c:307
int audio_channels_mapped
Definition: ffmpeg.h:492
int n
Definition: avisynth_c.h:684
AVDictionary * metadata
Definition: avformat.h:961
uint8_t * av_stream_new_side_data(AVStream *stream, enum AVPacketSideDataType type, int size)
Allocate new information from stream.
Definition: utils.c:5172
int ticks_per_frame
For some codecs, the time base is closer to the field rate than the frame rate.
Definition: avcodec.h:1878
#define AVFILTER_CMD_FLAG_ONE
Stop once a filter understood the command (for target=all for example), fast filters are favored auto...
Definition: avfilter.h:656
static uint32_t codec_flags(enum AVCodecID codec_id)
Definition: cafenc.c:37
const char program_name[]
program name, defined by the program for show_version().
Definition: ffmpeg.c:112
static int restore_tty
Definition: ffmpeg.c:161
#define AVERROR_EXIT
Immediate exit was requested; the called function should not be restarted.
Definition: error.h:56
uint8_t * data[4]
data+linesize for the bitmap of this subtitle.
Definition: avcodec.h:4025
static int got_eagain(void)
Definition: ffmpeg.c:4083
int inputs_done
Definition: ffmpeg.h:516
preferred ID for MPEG-1/2 video decoding
Definition: avcodec.h:219
static void error(const char *err)
int vstats_version
Definition: ffmpeg_opt.c:124
void av_display_rotation_set(int32_t matrix[9], double angle)
Initialize a transformation matrix describing a pure counterclockwise rotation by the specified angle...
Definition: display.c:50
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:485
#define AVERROR_EXPERIMENTAL
Requested feature is flagged experimental. Set strict_std_compliance if you really want to use it...
Definition: error.h:72
#define FF_ARRAY_ELEMS(a)
const char * avcodec_get_name(enum AVCodecID id)
Get the name of a codec.
Definition: utils.c:3190
void exit_program(int ret)
Wraps exit with a program-specific cleanup routine.
Definition: cmdutils.c:135
AVCodecContext * enc
Definition: muxing.c:55
#define av_log2
Definition: intmath.h:83
#define AV_DISPOSITION_VISUAL_IMPAIRED
stream for visual impaired audiences
Definition: avformat.h:850
int ret
Definition: ffmpeg.h:338
Keep a reference to the frame.
Definition: buffersrc.h:53
int audio_volume
Definition: ffmpeg_opt.c:102
void av_get_channel_layout_string(char *buf, int buf_size, int nb_channels, uint64_t channel_layout)
Return a description of a channel layout.
Stream structure.
Definition: avformat.h:889
void avcodec_flush_buffers(AVCodecContext *avctx)
Reset the internal decoder state / flush internal buffers.
Definition: utils.c:3476
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition: error.h:62
#define AVFMT_NOTIMESTAMPS
Format does not need / have any timestamps.
Definition: avformat.h:486
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:251
InputFilter ** filters
Definition: ffmpeg.h:354
int fix_sub_duration
Definition: ffmpeg.h:335
int avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt)
Supply raw packet data as input to a decoder.
Definition: utils.c:2868
#define VSYNC_DROP
Definition: ffmpeg.h:56
static int ifilter_has_all_input_formats(FilterGraph *fg)
Definition: ffmpeg.c:2139
int64_t recording_time
Definition: ffmpeg.h:404
int avformat_network_deinit(void)
Undo the initialization done by avformat_network_init.
Definition: utils.c:4727
Definition: ffmpeg.h:72
int frame_size
Number of samples per channel in an audio frame.
Definition: avcodec.h:2514
static av_always_inline int pthread_create(pthread_t *thread, const pthread_attr_t *attr, void *(*start_routine)(void *), void *arg)
Definition: os2threads.h:74
int(* init)(AVCodecContext *s)
Definition: ffmpeg.h:74
static int check_init_output_file(OutputFile *of, int file_index)
Definition: ffmpeg.c:2945
#define AV_DISPOSITION_DEFAULT
Definition: avformat.h:836
AVStream * st
Definition: ffmpeg.h:293
static int sub2video_get_blank_frame(InputStream *ist)
Definition: ffmpeg.c:173
sample_rate
static void set_encoder_id(OutputFile *of, OutputStream *ost)
Definition: ffmpeg.c:3149
#define AV_LOG_INFO
Standard information.
Definition: log.h:187
AVRational av_buffersink_get_sample_aspect_ratio(const AVFilterContext *ctx)
int frame_size
Definition: mxfenc.c:1820
AVCodecParserContext * av_parser_init(int codec_id)
Definition: parser.c:51
#define AV_DISPOSITION_DESCRIPTIONS
Definition: avformat.h:872
int ost_index
Definition: ffmpeg.h:555
struct InputStream * sync_ist
Definition: ffmpeg.h:447
int avcodec_default_get_buffer2(AVCodecContext *s, AVFrame *frame, int flags)
The default callback for AVCodecContext.get_buffer2().
Definition: utils.c:731
enum AVMediaType codec_type
Definition: avcodec.h:1740
double ts_scale
Definition: ffmpeg.h:326
int unavailable
Definition: ffmpeg.h:508
void av_thread_message_queue_set_err_send(AVThreadMessageQueue *mq, int err)
Set the sending error code.
void avcodec_free_context(AVCodecContext **avctx)
Free the codec context and everything associated with it and write NULL to the provided pointer...
Definition: options.c:172
static int init_input_stream(int ist_index, char *error, int error_len)
Definition: ffmpeg.c:2879
enum AVCodecID codec_id
Definition: avcodec.h:1749
void av_expr_free(AVExpr *e)
Free a parsed expression previously created with av_expr_parse().
Definition: eval.c:320
int av_fifo_size(const AVFifoBuffer *f)
Return the amount of data in bytes in the AVFifoBuffer, that is the amount of data you can read from ...
Definition: fifo.c:77
#define AV_TIME_BASE_Q
Internal time base represented as fractional value.
Definition: avutil.h:260
int av_opt_set_dict(void *obj, AVDictionary **options)
Set all the options from a given dictionary on an object.
Definition: opt.c:1589
static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h, AVSubtitleRect *r)
Definition: ffmpeg.c:188
float max_error_rate
Definition: ffmpeg_opt.c:121
int sample_rate
samples per second
Definition: avcodec.h:2494
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:218
uint64_t frames_encoded
Definition: ffmpeg.h:534
AVIOContext * pb
I/O context.
Definition: avformat.h:1391
int64_t av_rescale_delta(AVRational in_tb, int64_t in_ts, AVRational fs_tb, int duration, int64_t *last, AVRational out_tb)
Rescale a timestamp while preserving known durations.
Definition: mathematics.c:168
int av_fifo_realloc2(AVFifoBuffer *f, unsigned int new_size)
Resize an AVFifoBuffer.
Definition: fifo.c:87
AVFifoBuffer * muxing_queue
Definition: ffmpeg.h:543
int ist_index
Definition: ffmpeg.h:393
const struct AVCodecTag *const * codec_tag
List of supported codec_id-codec_tag pairs, ordered by "better choice first".
Definition: avformat.h:549
static int loop
Definition: ffplay.c:337
int debug
debug
Definition: avcodec.h:2973
static void print_sdp(void)
Definition: ffmpeg.c:2770
const char * graph_desc
Definition: ffmpeg.h:280
int guess_layout_max
Definition: ffmpeg.h:331
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
uint64_t av_buffersink_get_channel_layout(const AVFilterContext *ctx)
int64_t start_time
Definition: ffmpeg.h:402
main external API structure.
Definition: avcodec.h:1732
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.c:589
#define AV_PIX_FMT_RGB32
Definition: pixfmt.h:330
uint8_t * data
The data buffer.
Definition: buffer.h:89
static void ffmpeg_cleanup(int ret)
Definition: ffmpeg.c:466
static int command(AVFilterContext *ctx, const char *cmd, const char *arg, char *res, int res_len, int flags)
Definition: vf_drawtext.c:770
int * sample_rates
Definition: ffmpeg.h:275
void avsubtitle_free(AVSubtitle *sub)
Free all allocated data in the given subtitle struct.
Definition: utils.c:2785
AVRational sample_aspect_ratio
Sample aspect ratio for the video frame, 0/1 if unknown/unspecified.
Definition: frame.h:266
const char * attachment_filename
Definition: ffmpeg.h:518
static int check_output_constraints(InputStream *ist, OutputStream *ost)
Definition: ffmpeg.c:1971
int avfilter_graph_request_oldest(AVFilterGraph *graph)
Request a frame on the oldest sink link.
a very simple circular buffer FIFO implementation
int avcodec_send_frame(AVCodecContext *avctx, const AVFrame *frame)
Supply a raw video or audio frame to the encoder.
Definition: utils.c:3004
AVRational time_base
Definition: ffmpeg.h:397
void assert_avoptions(AVDictionary *m)
Definition: ffmpeg.c:632
AVCodecContext * enc_ctx
Definition: ffmpeg.h:461
void * buf
Definition: avisynth_c.h:690
AVFrame * decoded_frame
Definition: ffmpeg.h:302
int extradata_size
Definition: avcodec.h:1848
Perform non-blocking operation.
Definition: threadmessage.h:31
AVBufferRef * hw_frames_ctx
Definition: ffmpeg.h:250
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
Definition: dict.c:70
Replacements for frequently missing libm functions.
static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
Perform a step of transcoding for the specified filter graph.
Definition: ffmpeg.c:4440
int nb_coded_side_data
Definition: avcodec.h:3561
int channels
Definition: ffmpeg.h:247
int * audio_channels_map
Definition: ffmpeg.h:491
#define VSYNC_PASSTHROUGH
Definition: ffmpeg.h:52
Describe the class of an AVClass context structure.
Definition: log.h:67
int sample_rate
Sample rate of the audio data.
Definition: frame.h:351
int configure_filtergraph(FilterGraph *fg)
int(* get_buffer2)(struct AVCodecContext *s, AVFrame *frame, int flags)
This callback is called at the beginning of each frame to get data buffer(s) for it.
Definition: avcodec.h:2649
int av_frame_get_channels(const AVFrame *frame)
OutputStream ** output_streams
Definition: ffmpeg.c:149
int index
Definition: gxfenc.c:89
enum AVMediaType av_buffersink_get_type(const AVFilterContext *ctx)
int av_find_nearest_q_idx(AVRational q, const AVRational *q_list)
Find the value in a list of rationals nearest a given reference rational.
Definition: rational.c:142
#define FF_DEBUG_DCT_COEFF
Definition: avcodec.h:2985
Rational number (pair of numerator and denominator).
Definition: rational.h:58
int file_index
Definition: ffmpeg.h:439
int av_thread_message_queue_alloc(AVThreadMessageQueue **mq, unsigned nelem, unsigned elsize)
Allocate a new message queue.
Definition: threadmessage.c:40
#define ABORT_ON_FLAG_EMPTY_OUTPUT
Definition: ffmpeg.h:429
double rotate_override_value
Definition: ffmpeg.h:478
int avcodec_parameters_from_context(AVCodecParameters *par, const AVCodecContext *codec)
Fill the parameters struct based on the values from the supplied codec context.
Definition: utils.c:4210
static int current_time
Definition: ffmpeg.c:139
int64_t sync_opts
Definition: ffmpeg.h:448
char * vstats_filename
Definition: ffmpeg_opt.c:95
int64_t parse_time_or_die(const char *context, const char *timestr, int is_duration)
Parse a string specifying a time and return its corresponding value as a number of microseconds...
Definition: cmdutils.c:164
AVCodecContext * dec_ctx
Definition: ffmpeg.h:300
char * disposition
Definition: ffmpeg.h:521
This struct describes a set or pool of "hardware" frames (i.e.
Definition: hwcontext.h:117
int filtergraph_is_simple(FilterGraph *fg)
#define mid_pred
Definition: mathops.h:97
AVMediaType
Definition: avutil.h:199
discard useless packets like 0 size packets in avi
Definition: avcodec.h:817
int avio_open2(AVIOContext **s, const char *url, int flags, const AVIOInterruptCB *int_cb, AVDictionary **options)
Create and initialize a AVIOContext for accessing the resource indicated by url.
Definition: aviobuf.c:1079
int av_buffersink_get_w(const AVFilterContext *ctx)
int nb_streams_warn
Definition: ffmpeg.h:407
AVDictionary * decoder_opts
Definition: ffmpeg.h:328
int autorotate
Definition: ffmpeg.h:333
const char * name
Name of the codec described by this descriptor.
Definition: avcodec.h:703
int avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Initialize the AVCodecContext to use the given AVCodec.
Definition: utils.c:1245
#define snprintf
Definition: snprintf.h:34
int frame_bits_per_raw_sample
Definition: ffmpeg_opt.c:120
void avformat_free_context(AVFormatContext *s)
Free an AVFormatContext and all its streams.
Definition: utils.c:4168
#define u(width,...)
int64_t ts_offset
Definition: ffmpeg.h:400
uint32_t DWORD
unsigned av_buffersrc_get_nb_failed_requests(AVFilterContext *buffer_src)
Get the number of failed requests.
Definition: buffersrc.c:291
static int transcode_step(void)
Run a single step of transcoding.
Definition: ffmpeg.c:4486
char * filters_script
filtergraph script associated to the -filter_script option
Definition: ffmpeg.h:500
static void free_input_threads(void)
Definition: ffmpeg.c:4008
int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
Return audio frame duration.
Definition: utils.c:3780
misc parsing utilities
int av_read_frame(AVFormatContext *s, AVPacket *pkt)
Return the next frame of a stream.
Definition: utils.c:1712
static AVRational duration_max(int64_t tmp, int64_t *duration, AVRational tmp_time_base, AVRational time_base)
Definition: ffmpeg.c:4102
size_t av_strlcat(char *dst, const char *src, size_t size)
Append the string src to the string dst, but to a total length of no more than size - 1 bytes...
Definition: avstring.c:93
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:262
This struct describes the properties of a single codec described by an AVCodecID. ...
Definition: avcodec.h:695
AVFrame * filtered_frame
Definition: ffmpeg.h:465
int source_index
Definition: ffmpeg.h:441
int av_frame_get_buffer(AVFrame *frame, int align)
Allocate new buffer(s) for audio or video data.
Definition: frame.c:280
static volatile int received_nb_signals
Definition: ffmpeg.c:322
int(* hwaccel_get_buffer)(AVCodecContext *s, AVFrame *frame, int flags)
Definition: ffmpeg.h:368
int copy_prior_start
Definition: ffmpeg.h:520
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:498
int global_quality
Global quality for codecs which cannot change it per frame.
Definition: avcodec.h:1813
static void close_all_output_streams(OutputStream *ost, OSTFinished this_stream, OSTFinished others)
Definition: ffmpeg.c:663
static int64_t pts
Global timestamp for the audio frames.
int64_t av_gettime_relative(void)
Get the current time in microseconds since some unspecified starting point.
Definition: time.c:56
const char * av_get_media_type_string(enum AVMediaType media_type)
Return a string describing the media_type enum, NULL if media_type is unknown.
Definition: utils.c:79
void av_thread_message_queue_free(AVThreadMessageQueue **mq)
Free a message queue.
Definition: threadmessage.c:91
int nb_filters
Definition: ffmpeg.h:355
static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
Definition: ffmpeg.c:2824
int64_t start_time
Position of the first frame of the component, in AV_TIME_BASE fractional seconds. ...
Definition: avformat.h:1434
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:201
uint8_t pi<< 24) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_U8,(uint64_t)((*(const uint8_t *) pi - 0x80U))<< 56) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16,(*(const int16_t *) pi >>8)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S16,(uint64_t)(*(const int16_t *) pi)<< 48) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32,(*(const int32_t *) pi >>24)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S32,(uint64_t)(*(const int32_t *) pi)<< 32) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S64,(*(const int64_t *) pi >>56)+0x80) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S64, *(const int64_t *) pi *(1.0f/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S64, *(const int64_t *) pi *(1.0/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_FLT, llrintf(*(const float *) pi *(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_DBL, llrint(*(const double *) pi *(INT64_C(1)<< 63))) #define FMT_PAIR_FUNC(out, in) static conv_func_type *const fmt_pair_to_conv_functions[AV_SAMPLE_FMT_NB *AV_SAMPLE_FMT_NB]={ FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S64), };static void cpy1(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, len);} static void cpy2(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, 2 *len);} static void cpy4(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, 4 *len);} static void cpy8(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, 8 *len);} AudioConvert *swri_audio_convert_alloc(enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, const int *ch_map, int flags) { AudioConvert *ctx;conv_func_type *f=fmt_pair_to_conv_functions[av_get_packed_sample_fmt(out_fmt)+AV_SAMPLE_FMT_NB *av_get_packed_sample_fmt(in_fmt)];if(!f) return NULL;ctx=av_mallocz(sizeof(*ctx));if(!ctx) return NULL;if(channels==1){ in_fmt=av_get_planar_sample_fmt(in_fmt);out_fmt=av_get_planar_sample_fmt(out_fmt);} ctx->channels=channels;ctx->conv_f=f;ctx->ch_map=ch_map;if(in_fmt==AV_SAMPLE_FMT_U8||in_fmt==AV_SAMPLE_FMT_U8P) memset(ctx->silence, 0x80, sizeof(ctx->silence));if(out_fmt==in_fmt &&!ch_map) { switch(av_get_bytes_per_sample(in_fmt)){ case 1:ctx->simd_f=cpy1;break;case 2:ctx->simd_f=cpy2;break;case 4:ctx->simd_f=cpy4;break;case 8:ctx->simd_f=cpy8;break;} } if(HAVE_YASM &&HAVE_MMX) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);return ctx;} void swri_audio_convert_free(AudioConvert **ctx) { av_freep(ctx);} int swri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, int len) { int ch;int off=0;const int os=(out->planar ? 1 :out->ch_count) *out->bps;unsigned misaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask) { int planes=in->planar ? in->ch_count :1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;} if(ctx->out_simd_align_mask) { int planes=out->planar ? out->ch_count :1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) out->ch[ch];misaligned|=m &ctx->out_simd_align_mask;} if(ctx->simd_f &&!ctx->ch_map &&!misaligned){ off=len &~15;av_assert1(off >=0);av_assert1(off<=len);av_assert2(ctx->channels==SWR_CH_MAX||!in->ch[ctx->channels]);if(off >0){ if(out->planar==in->planar){ int planes=out->planar ? out->ch_count :1;for(ch=0;ch< planes;ch++){ ctx->simd_f(out-> ch ch
Definition: audioconvert.c:56
uint8_t level
Definition: svq3.c:207
AVExpr * forced_keyframes_pexpr
Definition: ffmpeg.h:487
int av_get_bytes_per_sample(enum AVSampleFormat sample_fmt)
Return number of bytes per sample.
Definition: samplefmt.c:106
int64_t dts
dts of the last packet read for this stream (in AV_TIME_BASE units)
Definition: ffmpeg.h:309
int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
Seek to the keyframe at timestamp.
Definition: utils.c:2449
int av_strerror(int errnum, char *errbuf, size_t errbuf_size)
Put a description of the AVERROR code errnum in errbuf.
Definition: error.c:105
int forced_kf_count
Definition: ffmpeg.h:484
int64_t start
Definition: avformat.h:1309
int64_t duration
Decoding: duration of the stream, in stream time base.
Definition: avformat.h:946
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
Definition: rational.h:159
OSTFinished finished
Definition: ffmpeg.h:507
char * forced_keyframes
Definition: ffmpeg.h:486
int sample_rate
Audio only.
Definition: avcodec.h:4176
uint64_t data_size
Definition: ffmpeg.h:376
void avdevice_register_all(void)
Initialize libavdevice and register all the input and output devices.
Definition: alldevices.c:74
int64_t next_pts
synthetic pts for the next decode frame (in AV_TIME_BASE units)
Definition: ffmpeg.h:311
Main libavformat public API header.
void print_error(const char *filename, int err)
Print an error message to stderr, indicating filename and a human readable description of the error c...
Definition: cmdutils.c:1051
struct FilterGraph * graph
Definition: ffmpeg.h:258
uint64_t limit_filesize
Definition: ffmpeg.h:558
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
static void print_final_stats(int64_t total_size)
Definition: ffmpeg.c:1530
AVIOContext * progress_avio
Definition: ffmpeg.c:140
AVThreadMessageQueue * in_thread_queue
Definition: ffmpeg.h:412
int main(int argc, char **argv)
Definition: ffmpeg.c:4736
int reinit_filters
Definition: ffmpeg.h:357
#define AVFMT_NOFILE
Demuxer will use avio_open, no opened file should be provided by the caller.
Definition: avformat.h:478
AVCodecParameters * ref_par
Definition: ffmpeg.h:462
#define VSYNC_CFR
Definition: ffmpeg.h:53
void av_buffersink_set_frame_size(AVFilterContext *ctx, unsigned frame_size)
Set the frame size for an audio buffer sink.
Definition: buffersink.c:175
#define AV_CODEC_CAP_PARAM_CHANGE
Codec supports changed parameters at any point.
Definition: avcodec.h:1065
int64_t start_time
Decoding: pts of the first frame of the stream in presentation order, in stream time base...
Definition: avformat.h:936
static double c[64]
#define AVFMT_NOSTREAMS
Format does not require any streams.
Definition: avformat.h:491
AVStream * st
Definition: muxing.c:54
static AVCodecContext * dec_ctx
int disposition
AV_DISPOSITION_* bit field.
Definition: avformat.h:950
uint32_t start_display_time
Definition: avcodec.h:4044
AVRational av_add_q(AVRational b, AVRational c)
Add two rationals.
Definition: rational.c:93
AVBufferRef * av_buffer_ref(AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:93
int pts_wrap_bits
number of bits in pts (used for wrapping control)
Definition: avformat.h:1055
uint64_t samples_encoded
Definition: ffmpeg.h:535
AVRational time_base
time base in which the start/end timestamps are specified
Definition: avformat.h:1308
void av_init_packet(AVPacket *pkt)
Initialize optional fields of a packet with default values.
Definition: avpacket.c:33
int thread_safe_callbacks
Set by the client if its custom get_buffer() callback can be called synchronously from another thread...
Definition: avcodec.h:3190
int64_t nb_frames
number of frames in this stream if known or 0
Definition: avformat.h:948
char * key
Definition: dict.h:86
static FILE * vstats_file
Definition: ffmpeg.c:115
int den
Denominator.
Definition: rational.h:60
void uninit_opts(void)
Uninitialize the cmdutils option system, in particular free the *_opts contexts and their contents...
Definition: cmdutils.c:89
AVFrame * last_frame
Definition: ffmpeg.h:466
int avfilter_graph_send_command(AVFilterGraph *graph, const char *target, const char *cmd, const char *arg, char *res, int res_len, int flags)
Send a command to one or more filter instances.
int attribute_align_arg av_buffersrc_add_frame_flags(AVFilterContext *ctx, AVFrame *frame, int flags)
Add a frame to the buffer source.
Definition: buffersrc.c:152
uint64_t channel_layout
Definition: ffmpeg.h:248
#define AV_PKT_FLAG_CORRUPT
The packet content is corrupted.
Definition: avcodec.h:1690
int copy_ts
Definition: ffmpeg_opt.c:111
static void do_video_out(OutputFile *of, OutputStream *ost, AVFrame *next_picture, double sync_ipts)
Definition: ffmpeg.c:1036
struct AVInputFormat * iformat
The input container format.
Definition: avformat.h:1361
void avformat_close_input(AVFormatContext **s)
Close an opened input AVFormatContext.
Definition: utils.c:4205
AVFormatContext * ctx
Definition: ffmpeg.h:390
int pict_type
Definition: ffmpeg.h:546
static struct termios oldtty
Definition: ffmpeg.c:160
AVBufferRef * hw_device_ctx
Definition: ffmpeg_opt.c:93
AVSubtitle subtitle
Definition: ffmpeg.h:339
#define AV_CODEC_FLAG_PASS2
Use internal 2pass ratecontrol in second pass mode.
Definition: avcodec.h:888
int eof_reached
Definition: ffmpeg.h:391
Flag telling rescaling functions to pass INT64_MIN/MAX through unchanged, avoiding special cases for ...
Definition: mathematics.h:108
int forced_kf_index
Definition: ffmpeg.h:485
#define AVFMT_VARIABLE_FPS
Format allows variable fps.
Definition: avformat.h:489
char * avfilter
Definition: ffmpeg.h:498
uint8_t * name
Definition: ffmpeg.h:235
char * value
Definition: dict.h:87
AVFifoBuffer * av_fifo_alloc(unsigned int size)
Initialize an AVFifoBuffer.
Definition: fifo.c:43
int top_field_first
If the content is interlaced, is top field displayed first.
Definition: frame.h:330
#define av_ts2str(ts)
Convenience macro, the return value should be used only directly in function arguments but never stan...
Definition: timestamp.h:54
#define NAN
Definition: math.h:28
float dts_delta_threshold
Definition: ffmpeg_opt.c:99
double av_expr_eval(AVExpr *e, const double *const_values, void *opaque)
Evaluate a previously parsed expression.
Definition: eval.c:716
int channels
number of audio channels
Definition: avcodec.h:2495
int top_field_first
Definition: ffmpeg.h:476
int av_buffersink_get_channels(const AVFilterContext *ctx)
OutputFilter ** outputs
Definition: ffmpeg.h:287
InputFile ** input_files
Definition: ffmpeg.c:146
static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
Definition: ffmpeg.c:2869
void av_log_set_flags(int arg)
Definition: log.c:396
int key_frame
1 -> keyframe, 0-> not
Definition: frame.h:256
#define FF_QP2LAMBDA
factor to convert from H.263 QP to lambda
Definition: avutil.h:227
static int ifilter_send_frame(InputFilter *ifilter, AVFrame *frame)
Definition: ffmpeg.c:2150
AVFormatContext * ctx
Definition: ffmpeg.h:553
#define lrint
Definition: tablegen.h:53
#define AV_DISPOSITION_COMMENT
Definition: avformat.h:839
void show_usage(void)
Definition: ffmpeg_opt.c:3166
int channels
Audio only.
Definition: avcodec.h:4172
An instance of a filter.
Definition: avfilter.h:323
static void do_audio_out(OutputFile *of, OutputStream *ost, AVFrame *frame)
Definition: ffmpeg.c:893
#define LIBAVCODEC_IDENT
Definition: version.h:42
char * hwaccel_device
Definition: ffmpeg.h:361
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
Definition: avcodec.h:1656
AVRational av_mul_q(AVRational b, AVRational c)
Multiply two rationals.
Definition: rational.c:80
AVDictionary * encoder_opts
Definition: ffmpeg.h:502
int64_t av_get_default_channel_layout(int nb_channels)
Return default channel layout for a given number of channels.
int av_write_trailer(AVFormatContext *s)
Write the stream trailer to an output media file and free the file private data.
Definition: mux.c:1307
const int program_birth_year
program birth year, defined by the program for show_banner()
Definition: ffmpeg.c:113
int repeat_pict
This field is used for proper frame duration computation in lavf.
Definition: avcodec.h:5093
int height
Definition: frame.h:239
FILE * out
Definition: movenc.c:54
InputFilter ** inputs
Definition: ffmpeg.h:285
#define av_freep(p)
enum AVPixelFormat hwaccel_retrieved_pix_fmt
Definition: ffmpeg.h:371
const char * name
A comma separated list of short names for the format.
Definition: avformat.h:664
static int decode(AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *pkt)
Definition: ffmpeg.c:2261
#define AV_DICT_IGNORE_SUFFIX
Return first entry in a dictionary whose first part corresponds to the search key, ignoring the suffix of the found key string.
Definition: dict.h:70
static int send_filter_eof(InputStream *ist)
Definition: ffmpeg.c:2583
#define FF_DEBUG_VIS_QP
Definition: avcodec.h:2995
OutputFile ** output_files
Definition: ffmpeg.c:151
#define AV_LOG_FATAL
Something went wrong and recovery is not possible.
Definition: log.h:170
void av_fifo_freep(AVFifoBuffer **f)
Free an AVFifoBuffer and reset pointer to NULL.
Definition: fifo.c:63
AVCodecParameters * codecpar
Definition: avformat.h:1252
#define av_malloc_array(a, b)
int64_t av_rescale_q_rnd(int64_t a, AVRational bq, AVRational cq, enum AVRounding rnd)
Rescale a 64-bit integer by 2 rational numbers with specified rounding.
Definition: mathematics.c:134
static void flush_encoders(void)
Definition: ffmpeg.c:1839
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
Definition: avcodec.h:4070
int copy_tb
Definition: ffmpeg_opt.c:113
int64_t min_pts
Definition: ffmpeg.h:317
int initialized
Definition: ffmpeg.h:514
static volatile int received_sigterm
Definition: ffmpeg.c:321
#define FFSWAP(type, a, b)
Definition: common.h:99
int discard
Definition: ffmpeg.h:294
static int get_input_packet(InputFile *f, AVPacket *pkt)
Definition: ffmpeg.c:4063
const char * av_get_pix_fmt_name(enum AVPixelFormat pix_fmt)
Return the short name for a pixel format, NULL in case pix_fmt is unknown.
Definition: pixdesc.c:2249
int thread_queue_size
Definition: ffmpeg.h:416
uint8_t * av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type, int size)
Allocate new information of a packet.
Definition: avpacket.c:329
int stream_index
Definition: avcodec.h:1659
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avformat.h:926
enum HWAccelID hwaccel_id
Definition: ffmpeg.h:360
int depth
Number of bits in the component.
Definition: pixdesc.h:58
enum AVSubtitleType type
Definition: avcodec.h:4028
int64_t first_pts
Definition: ffmpeg.h:451
int nb_inputs
Definition: ffmpeg.h:286
enum AVDiscard discard
Selects which packets can be discarded at will and do not need to be demuxed.
Definition: avformat.h:952
int av_copy_packet_side_data(AVPacket *dst, const AVPacket *src)
Copy packet side data.
Definition: avpacket.c:226
#define DECODING_FOR_OST
Definition: ffmpeg.h:297
int index
Definition: ffmpeg.h:440
AVRational r_frame_rate
Real base framerate of the stream.
Definition: avformat.h:1108
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
OSTFinished
Definition: ffmpeg.h:433
This structure stores compressed data.
Definition: avcodec.h:1634
void av_register_all(void)
Initialize libavformat and register all the muxers, demuxers and protocols.
Definition: allformats.c:385
int avio_closep(AVIOContext **s)
Close the resource accessed by the AVIOContext *s, free it and set the pointer pointing to it to NULL...
Definition: aviobuf.c:1114
AVCodecParameters * par_in
Parameters of the input stream.
Definition: avcodec.h:5858
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size, const AVSubtitle *sub)
Definition: utils.c:2056
int non_blocking
Definition: ffmpeg.h:414
AVFifoBuffer * frame_queue
Definition: ffmpeg.h:238
int debug_ts
Definition: ffmpeg_opt.c:114
AVRational av_buffersink_get_time_base(const AVFilterContext *ctx)
static OutputStream * choose_output(void)
Select the output stream to process.
Definition: ffmpeg.c:3816
int nb_samples
number of audio samples (per channel) described by this frame
Definition: frame.h:244
static void sigterm_handler(int sig)
Definition: ffmpeg.c:328
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: avcodec.h:1650
int64_t av_stream_get_end_pts(const AVStream *st)
Returns the pts of the last muxed packet + its duration.
Definition: utils.c:122
void * opaque
Private data of the user, can be used to carry app specific stuff.
Definition: avcodec.h:1789
for(j=16;j >0;--j)
#define FFMAX3(a, b, c)
Definition: common.h:95
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition: avutil.h:248
#define tb
Definition: regdef.h:68
AVProgram ** programs
Definition: avformat.h:1507
#define AV_DISPOSITION_ORIGINAL
Definition: avformat.h:838
int joined
Definition: ffmpeg.h:415
int avio_printf(AVIOContext *s, const char *fmt,...) av_printf_format(2
int attribute_align_arg av_buffersrc_add_frame(AVFilterContext *ctx, AVFrame *frame)
Add a frame to the buffer source.
Definition: buffersrc.c:144
InputStream ** input_streams
Definition: ffmpeg.c:144
static unsigned dup_warning
Definition: ffmpeg.c:133
const HWAccel hwaccels[]
Definition: ffmpeg_opt.c:68
Definition: ffmpeg.h:425
static void close_output_stream(OutputStream *ost)
Definition: ffmpeg.c:807
uint8_t * subtitle_header
Header containing style information for text subtitles.
Definition: avcodec.h:3365
static uint8_t tmp[11]
Definition: aes_ctr.c:26