FFmpeg  4.4.4
ffmpeg.c
Go to the documentation of this file.
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"
64 #include "libavutil/thread.h"
66 #include "libavcodec/mathops.h"
67 #include "libavformat/os_support.h"
68 
69 # include "libavfilter/avfilter.h"
70 # include "libavfilter/buffersrc.h"
71 # include "libavfilter/buffersink.h"
72 
73 #if HAVE_SYS_RESOURCE_H
74 #include <sys/time.h>
75 #include <sys/types.h>
76 #include <sys/resource.h>
77 #elif HAVE_GETPROCESSTIMES
78 #include <windows.h>
79 #endif
80 #if HAVE_GETPROCESSMEMORYINFO
81 #include <windows.h>
82 #include <psapi.h>
83 #endif
84 #if HAVE_SETCONSOLECTRLHANDLER
85 #include <windows.h>
86 #endif
87 
88 
89 #if HAVE_SYS_SELECT_H
90 #include <sys/select.h>
91 #endif
92 
93 #if HAVE_TERMIOS_H
94 #include <fcntl.h>
95 #include <sys/ioctl.h>
96 #include <sys/time.h>
97 #include <termios.h>
98 #elif HAVE_KBHIT
99 #include <conio.h>
100 #endif
101 
102 #include <time.h>
103 
104 #include "ffmpeg.h"
105 #include "cmdutils.h"
106 
107 #include "libavutil/avassert.h"
108 
109 const char program_name[] = "ffmpeg";
110 const int program_birth_year = 2000;
111 
112 static FILE *vstats_file;
113 
114 const char *const forced_keyframes_const_names[] = {
115  "n",
116  "n_forced",
117  "prev_forced_n",
118  "prev_forced_t",
119  "t",
120  NULL
121 };
122 
123 typedef struct BenchmarkTimeStamps {
124  int64_t real_usec;
125  int64_t user_usec;
126  int64_t sys_usec;
128 
129 static void do_video_stats(OutputStream *ost, int frame_size);
131 static int64_t getmaxrss(void);
133 
134 static int run_as_daemon = 0;
135 static int nb_frames_dup = 0;
136 static unsigned dup_warning = 1000;
137 static int nb_frames_drop = 0;
138 static int64_t decode_error_stat[2];
139 static unsigned nb_output_dumped = 0;
140 
141 static int want_sdp = 1;
142 
145 
147 
152 
157 
160 
161 #if HAVE_TERMIOS_H
162 
163 /* init terminal so that we can grab keys */
164 static struct termios oldtty;
165 static int restore_tty;
166 #endif
167 
168 #if HAVE_THREADS
169 static void free_input_threads(void);
170 #endif
171 
172 /* sub2video hack:
173  Convert subtitles to video with alpha to insert them in filter graphs.
174  This is a temporary solution until libavfilter gets real subtitles support.
175  */
176 
178 {
179  int ret;
180  AVFrame *frame = ist->sub2video.frame;
181 
183  ist->sub2video.frame->width = ist->dec_ctx->width ? ist->dec_ctx->width : ist->sub2video.w;
184  ist->sub2video.frame->height = ist->dec_ctx->height ? ist->dec_ctx->height : ist->sub2video.h;
186  if ((ret = av_frame_get_buffer(frame, 0)) < 0)
187  return ret;
188  memset(frame->data[0], 0, frame->height * frame->linesize[0]);
189  return 0;
190 }
191 
192 static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h,
193  AVSubtitleRect *r)
194 {
195  uint32_t *pal, *dst2;
196  uint8_t *src, *src2;
197  int x, y;
198 
199  if (r->type != SUBTITLE_BITMAP) {
200  av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n");
201  return;
202  }
203  if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) {
204  av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle (%d %d %d %d) overflowing %d %d\n",
205  r->x, r->y, r->w, r->h, w, h
206  );
207  return;
208  }
209 
210  dst += r->y * dst_linesize + r->x * 4;
211  src = r->data[0];
212  pal = (uint32_t *)r->data[1];
213  for (y = 0; y < r->h; y++) {
214  dst2 = (uint32_t *)dst;
215  src2 = src;
216  for (x = 0; x < r->w; x++)
217  *(dst2++) = pal[*(src2++)];
218  dst += dst_linesize;
219  src += r->linesize[0];
220  }
221 }
222 
223 static void sub2video_push_ref(InputStream *ist, int64_t pts)
224 {
225  AVFrame *frame = ist->sub2video.frame;
226  int i;
227  int ret;
228 
229  av_assert1(frame->data[0]);
230  ist->sub2video.last_pts = frame->pts = pts;
231  for (i = 0; i < ist->nb_filters; i++) {
235  if (ret != AVERROR_EOF && ret < 0)
236  av_log(NULL, AV_LOG_WARNING, "Error while add the frame to buffer source(%s).\n",
237  av_err2str(ret));
238  }
239 }
240 
241 void sub2video_update(InputStream *ist, int64_t heartbeat_pts, AVSubtitle *sub)
242 {
243  AVFrame *frame = ist->sub2video.frame;
244  int8_t *dst;
245  int dst_linesize;
246  int num_rects, i;
247  int64_t pts, end_pts;
248 
249  if (!frame)
250  return;
251  if (sub) {
252  pts = av_rescale_q(sub->pts + sub->start_display_time * 1000LL,
253  AV_TIME_BASE_Q, ist->st->time_base);
254  end_pts = av_rescale_q(sub->pts + sub->end_display_time * 1000LL,
255  AV_TIME_BASE_Q, ist->st->time_base);
256  num_rects = sub->num_rects;
257  } else {
258  /* If we are initializing the system, utilize current heartbeat
259  PTS as the start time, and show until the following subpicture
260  is received. Otherwise, utilize the previous subpicture's end time
261  as the fall-back value. */
262  pts = ist->sub2video.initialize ?
263  heartbeat_pts : ist->sub2video.end_pts;
264  end_pts = INT64_MAX;
265  num_rects = 0;
266  }
267  if (sub2video_get_blank_frame(ist) < 0) {
269  "Impossible to get a blank canvas.\n");
270  return;
271  }
272  dst = frame->data [0];
273  dst_linesize = frame->linesize[0];
274  for (i = 0; i < num_rects; i++)
275  sub2video_copy_rect(dst, dst_linesize, frame->width, frame->height, sub->rects[i]);
276  sub2video_push_ref(ist, pts);
277  ist->sub2video.end_pts = end_pts;
278  ist->sub2video.initialize = 0;
279 }
280 
281 static void sub2video_heartbeat(InputStream *ist, int64_t pts)
282 {
283  InputFile *infile = input_files[ist->file_index];
284  int i, j, nb_reqs;
285  int64_t pts2;
286 
287  /* When a frame is read from a file, examine all sub2video streams in
288  the same file and send the sub2video frame again. Otherwise, decoded
289  video frames could be accumulating in the filter graph while a filter
290  (possibly overlay) is desperately waiting for a subtitle frame. */
291  for (i = 0; i < infile->nb_streams; i++) {
292  InputStream *ist2 = input_streams[infile->ist_index + i];
293  if (!ist2->sub2video.frame)
294  continue;
295  /* subtitles seem to be usually muxed ahead of other streams;
296  if not, subtracting a larger time here is necessary */
297  pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
298  /* do not send the heartbeat frame if the subtitle is already ahead */
299  if (pts2 <= ist2->sub2video.last_pts)
300  continue;
301  if (pts2 >= ist2->sub2video.end_pts || ist2->sub2video.initialize)
302  /* if we have hit the end of the current displayed subpicture,
303  or if we need to initialize the system, update the
304  overlayed subpicture and its start/end times */
305  sub2video_update(ist2, pts2 + 1, NULL);
306  for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
307  nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
308  if (nb_reqs)
309  sub2video_push_ref(ist2, pts2);
310  }
311 }
312 
313 static void sub2video_flush(InputStream *ist)
314 {
315  int i;
316  int ret;
317 
318  if (ist->sub2video.end_pts < INT64_MAX)
319  sub2video_update(ist, INT64_MAX, NULL);
320  for (i = 0; i < ist->nb_filters; i++) {
321  ret = av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
322  if (ret != AVERROR_EOF && ret < 0)
323  av_log(NULL, AV_LOG_WARNING, "Flush the frame error.\n");
324  }
325 }
326 
327 /* end of sub2video hack */
328 
329 static void term_exit_sigsafe(void)
330 {
331 #if HAVE_TERMIOS_H
332  if(restore_tty)
333  tcsetattr (0, TCSANOW, &oldtty);
334 #endif
335 }
336 
337 void term_exit(void)
338 {
339  av_log(NULL, AV_LOG_QUIET, "%s", "");
341 }
342 
343 static volatile int received_sigterm = 0;
344 static volatile int received_nb_signals = 0;
346 static volatile int ffmpeg_exited = 0;
347 static int main_return_code = 0;
349 
350 static void
352 {
353  int ret;
354  received_sigterm = sig;
357  if(received_nb_signals > 3) {
358  ret = write(2/*STDERR_FILENO*/, "Received > 3 system signals, hard exiting\n",
359  strlen("Received > 3 system signals, hard exiting\n"));
360  if (ret < 0) { /* Do nothing */ };
361  exit(123);
362  }
363 }
364 
365 #if HAVE_SETCONSOLECTRLHANDLER
366 static BOOL WINAPI CtrlHandler(DWORD fdwCtrlType)
367 {
368  av_log(NULL, AV_LOG_DEBUG, "\nReceived windows signal %ld\n", fdwCtrlType);
369 
370  switch (fdwCtrlType)
371  {
372  case CTRL_C_EVENT:
373  case CTRL_BREAK_EVENT:
374  sigterm_handler(SIGINT);
375  return TRUE;
376 
377  case CTRL_CLOSE_EVENT:
378  case CTRL_LOGOFF_EVENT:
379  case CTRL_SHUTDOWN_EVENT:
380  sigterm_handler(SIGTERM);
381  /* Basically, with these 3 events, when we return from this method the
382  process is hard terminated, so stall as long as we need to
383  to try and let the main thread(s) clean up and gracefully terminate
384  (we have at most 5 seconds, but should be done far before that). */
385  while (!ffmpeg_exited) {
386  Sleep(0);
387  }
388  return TRUE;
389 
390  default:
391  av_log(NULL, AV_LOG_ERROR, "Received unknown windows signal %ld\n", fdwCtrlType);
392  return FALSE;
393  }
394 }
395 #endif
396 
397 #ifdef __linux__
398 #define SIGNAL(sig, func) \
399  do { \
400  action.sa_handler = func; \
401  sigaction(sig, &action, NULL); \
402  } while (0)
403 #else
404 #define SIGNAL(sig, func) \
405  signal(sig, func)
406 #endif
407 
408 void term_init(void)
409 {
410 #if defined __linux__
411  struct sigaction action = {0};
412  action.sa_handler = sigterm_handler;
413 
414  /* block other interrupts while processing this one */
415  sigfillset(&action.sa_mask);
416 
417  /* restart interruptible functions (i.e. don't fail with EINTR) */
418  action.sa_flags = SA_RESTART;
419 #endif
420 
421 #if HAVE_TERMIOS_H
423  struct termios tty;
424  if (tcgetattr (0, &tty) == 0) {
425  oldtty = tty;
426  restore_tty = 1;
427 
428  tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
429  |INLCR|IGNCR|ICRNL|IXON);
430  tty.c_oflag |= OPOST;
431  tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
432  tty.c_cflag &= ~(CSIZE|PARENB);
433  tty.c_cflag |= CS8;
434  tty.c_cc[VMIN] = 1;
435  tty.c_cc[VTIME] = 0;
436 
437  tcsetattr (0, TCSANOW, &tty);
438  }
439  SIGNAL(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
440  }
441 #endif
442 
443  SIGNAL(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
444  SIGNAL(SIGTERM, sigterm_handler); /* Termination (ANSI). */
445 #ifdef SIGXCPU
446  SIGNAL(SIGXCPU, sigterm_handler);
447 #endif
448 #ifdef SIGPIPE
449  signal(SIGPIPE, SIG_IGN); /* Broken pipe (POSIX). */
450 #endif
451 #if HAVE_SETCONSOLECTRLHANDLER
452  SetConsoleCtrlHandler((PHANDLER_ROUTINE) CtrlHandler, TRUE);
453 #endif
454 }
455 
456 /* read a key without blocking */
457 static int read_key(void)
458 {
459  unsigned char ch;
460 #if HAVE_TERMIOS_H
461  int n = 1;
462  struct timeval tv;
463  fd_set rfds;
464 
465  FD_ZERO(&rfds);
466  FD_SET(0, &rfds);
467  tv.tv_sec = 0;
468  tv.tv_usec = 0;
469  n = select(1, &rfds, NULL, NULL, &tv);
470  if (n > 0) {
471  n = read(0, &ch, 1);
472  if (n == 1)
473  return ch;
474 
475  return n;
476  }
477 #elif HAVE_KBHIT
478 # if HAVE_PEEKNAMEDPIPE
479  static int is_pipe;
480  static HANDLE input_handle;
481  DWORD dw, nchars;
482  if(!input_handle){
483  input_handle = GetStdHandle(STD_INPUT_HANDLE);
484  is_pipe = !GetConsoleMode(input_handle, &dw);
485  }
486 
487  if (is_pipe) {
488  /* When running under a GUI, you will end here. */
489  if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL)) {
490  // input pipe may have been closed by the program that ran ffmpeg
491  return -1;
492  }
493  //Read it
494  if(nchars != 0) {
495  read(0, &ch, 1);
496  return ch;
497  }else{
498  return -1;
499  }
500  }
501 # endif
502  if(kbhit())
503  return(getch());
504 #endif
505  return -1;
506 }
507 
508 static int decode_interrupt_cb(void *ctx)
509 {
511 }
512 
514 
515 static void ffmpeg_cleanup(int ret)
516 {
517  int i, j;
518 
519  if (do_benchmark) {
520  int maxrss = getmaxrss() / 1024;
521  av_log(NULL, AV_LOG_INFO, "bench: maxrss=%ikB\n", maxrss);
522  }
523 
524  for (i = 0; i < nb_filtergraphs; i++) {
525  FilterGraph *fg = filtergraphs[i];
527  for (j = 0; j < fg->nb_inputs; j++) {
528  InputFilter *ifilter = fg->inputs[j];
529  struct InputStream *ist = ifilter->ist;
530 
531  while (av_fifo_size(ifilter->frame_queue)) {
532  AVFrame *frame;
534  sizeof(frame), NULL);
536  }
537  av_fifo_freep(&ifilter->frame_queue);
538  if (ist->sub2video.sub_queue) {
539  while (av_fifo_size(ist->sub2video.sub_queue)) {
540  AVSubtitle sub;
542  &sub, sizeof(sub), NULL);
544  }
546  }
547  av_buffer_unref(&ifilter->hw_frames_ctx);
548  av_freep(&ifilter->name);
549  av_freep(&fg->inputs[j]);
550  }
551  av_freep(&fg->inputs);
552  for (j = 0; j < fg->nb_outputs; j++) {
553  OutputFilter *ofilter = fg->outputs[j];
554 
555  avfilter_inout_free(&ofilter->out_tmp);
556  av_freep(&ofilter->name);
557  av_freep(&ofilter->formats);
558  av_freep(&ofilter->channel_layouts);
559  av_freep(&ofilter->sample_rates);
560  av_freep(&fg->outputs[j]);
561  }
562  av_freep(&fg->outputs);
563  av_freep(&fg->graph_desc);
564 
566  }
568 
570 
571  /* close files */
572  for (i = 0; i < nb_output_files; i++) {
573  OutputFile *of = output_files[i];
575  if (!of)
576  continue;
577  s = of->ctx;
578  if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE))
579  avio_closep(&s->pb);
581  av_dict_free(&of->opts);
582 
584  }
585  for (i = 0; i < nb_output_streams; i++) {
587 
588  if (!ost)
589  continue;
590 
591  av_bsf_free(&ost->bsf_ctx);
592 
593  av_frame_free(&ost->filtered_frame);
594  av_frame_free(&ost->last_frame);
595  av_packet_free(&ost->pkt);
596  av_dict_free(&ost->encoder_opts);
597 
598  av_freep(&ost->forced_keyframes);
599  av_expr_free(ost->forced_keyframes_pexpr);
600  av_freep(&ost->avfilter);
601  av_freep(&ost->logfile_prefix);
602 
603  av_freep(&ost->audio_channels_map);
604  ost->audio_channels_mapped = 0;
605 
606  av_dict_free(&ost->sws_dict);
607  av_dict_free(&ost->swr_opts);
608 
609  avcodec_free_context(&ost->enc_ctx);
610  avcodec_parameters_free(&ost->ref_par);
611 
612  if (ost->muxing_queue) {
613  while (av_fifo_size(ost->muxing_queue)) {
614  AVPacket *pkt;
615  av_fifo_generic_read(ost->muxing_queue, &pkt, sizeof(pkt), NULL);
617  }
618  av_fifo_freep(&ost->muxing_queue);
619  }
620 
622  }
623 #if HAVE_THREADS
624  free_input_threads();
625 #endif
626  for (i = 0; i < nb_input_files; i++) {
630  }
631  for (i = 0; i < nb_input_streams; i++) {
632  InputStream *ist = input_streams[i];
633 
636  av_packet_free(&ist->pkt);
637  av_dict_free(&ist->decoder_opts);
640  av_freep(&ist->filters);
641  av_freep(&ist->hwaccel_device);
642  av_freep(&ist->dts_buffer);
643 
645 
647  }
648 
649  if (vstats_file) {
650  if (fclose(vstats_file))
652  "Error closing vstats file, loss of information possible: %s\n",
653  av_err2str(AVERROR(errno)));
654  }
656 
661 
662  uninit_opts();
663 
665 
666  if (received_sigterm) {
667  av_log(NULL, AV_LOG_INFO, "Exiting normally, received signal %d.\n",
668  (int) received_sigterm);
669  } else if (ret && atomic_load(&transcode_init_done)) {
670  av_log(NULL, AV_LOG_INFO, "Conversion failed!\n");
671  }
672  term_exit();
673  ffmpeg_exited = 1;
674 }
675 
677 {
678  AVDictionaryEntry *t = NULL;
679 
680  while ((t = av_dict_get(b, "", t, AV_DICT_IGNORE_SUFFIX))) {
682  }
683 }
684 
686 {
688  if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
689  av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
690  exit_program(1);
691  }
692 }
693 
694 static void abort_codec_experimental(const AVCodec *c, int encoder)
695 {
696  exit_program(1);
697 }
698 
699 static void update_benchmark(const char *fmt, ...)
700 {
701  if (do_benchmark_all) {
703  va_list va;
704  char buf[1024];
705 
706  if (fmt) {
707  va_start(va, fmt);
708  vsnprintf(buf, sizeof(buf), fmt, va);
709  va_end(va);
711  "bench: %8" PRIu64 " user %8" PRIu64 " sys %8" PRIu64 " real %s \n",
714  t.real_usec - current_time.real_usec, buf);
715  }
716  current_time = t;
717  }
718 }
719 
721 {
722  int i;
723  for (i = 0; i < nb_output_streams; i++) {
724  OutputStream *ost2 = output_streams[i];
725  ost2->finished |= ost == ost2 ? this_stream : others;
726  }
727 }
728 
729 static void write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost, int unqueue)
730 {
731  AVFormatContext *s = of->ctx;
732  AVStream *st = ost->st;
733  int ret;
734 
735  /*
736  * Audio encoders may split the packets -- #frames in != #packets out.
737  * But there is no reordering, so we can limit the number of output packets
738  * by simply dropping them here.
739  * Counting encoded video frames needs to be done separately because of
740  * reordering, see do_video_out().
741  * Do not count the packet when unqueued because it has been counted when queued.
742  */
743  if (!(st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && ost->encoding_needed) && !unqueue) {
744  if (ost->frame_number >= ost->max_frames) {
746  return;
747  }
748  ost->frame_number++;
749  }
750 
751  if (!of->header_written) {
752  AVPacket *tmp_pkt;
753  /* the muxer is not initialized yet, buffer the packet */
754  if (!av_fifo_space(ost->muxing_queue)) {
755  unsigned int are_we_over_size =
756  (ost->muxing_queue_data_size + pkt->size) > ost->muxing_queue_data_threshold;
757  int new_size = are_we_over_size ?
758  FFMIN(2 * av_fifo_size(ost->muxing_queue),
759  ost->max_muxing_queue_size) :
760  2 * av_fifo_size(ost->muxing_queue);
761 
762  if (new_size <= av_fifo_size(ost->muxing_queue)) {
764  "Too many packets buffered for output stream %d:%d.\n",
765  ost->file_index, ost->st->index);
766  exit_program(1);
767  }
768  ret = av_fifo_realloc2(ost->muxing_queue, new_size);
769  if (ret < 0)
770  exit_program(1);
771  }
773  if (ret < 0)
774  exit_program(1);
775  tmp_pkt = av_packet_alloc();
776  if (!tmp_pkt)
777  exit_program(1);
778  av_packet_move_ref(tmp_pkt, pkt);
779  ost->muxing_queue_data_size += tmp_pkt->size;
780  av_fifo_generic_write(ost->muxing_queue, &tmp_pkt, sizeof(tmp_pkt), NULL);
781  return;
782  }
783 
786  pkt->pts = pkt->dts = AV_NOPTS_VALUE;
787 
789  int i;
791  NULL);
792  ost->quality = sd ? AV_RL32(sd) : -1;
793  ost->pict_type = sd ? sd[4] : AV_PICTURE_TYPE_NONE;
794 
795  for (i = 0; i<FF_ARRAY_ELEMS(ost->error); i++) {
796  if (sd && i < sd[5])
797  ost->error[i] = AV_RL64(sd + 8 + 8*i);
798  else
799  ost->error[i] = -1;
800  }
801 
802  if (ost->frame_rate.num && ost->is_cfr) {
803  if (pkt->duration > 0)
804  av_log(NULL, AV_LOG_WARNING, "Overriding packet duration by frame rate, this should not happen\n");
805  pkt->duration = av_rescale_q(1, av_inv_q(ost->frame_rate),
806  ost->mux_timebase);
807  }
808  }
809 
810  av_packet_rescale_ts(pkt, ost->mux_timebase, ost->st->time_base);
811 
812  if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS)) {
813  if (pkt->dts != AV_NOPTS_VALUE &&
814  pkt->pts != AV_NOPTS_VALUE &&
815  pkt->dts > pkt->pts) {
816  av_log(s, AV_LOG_WARNING, "Invalid DTS: %"PRId64" PTS: %"PRId64" in output stream %d:%d, replacing by guess\n",
817  pkt->dts, pkt->pts,
818  ost->file_index, ost->st->index);
819  pkt->pts =
820  pkt->dts = pkt->pts + pkt->dts + ost->last_mux_dts + 1
821  - FFMIN3(pkt->pts, pkt->dts, ost->last_mux_dts + 1)
822  - FFMAX3(pkt->pts, pkt->dts, ost->last_mux_dts + 1);
823  }
825  pkt->dts != AV_NOPTS_VALUE &&
826  !(st->codecpar->codec_id == AV_CODEC_ID_VP9 && ost->stream_copy) &&
827  ost->last_mux_dts != AV_NOPTS_VALUE) {
828  int64_t max = ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
829  if (pkt->dts < max) {
830  int loglevel = max - pkt->dts > 2 || st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG;
831  if (exit_on_error)
832  loglevel = AV_LOG_ERROR;
833  av_log(s, loglevel, "Non-monotonous DTS in output stream "
834  "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
835  ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
836  if (exit_on_error) {
837  av_log(NULL, AV_LOG_FATAL, "aborting.\n");
838  exit_program(1);
839  }
840  av_log(s, loglevel, "changing to %"PRId64". This may result "
841  "in incorrect timestamps in the output file.\n",
842  max);
843  if (pkt->pts >= pkt->dts)
844  pkt->pts = FFMAX(pkt->pts, max);
845  pkt->dts = max;
846  }
847  }
848  }
849  ost->last_mux_dts = pkt->dts;
850 
851  ost->data_size += pkt->size;
852  ost->packets_written++;
853 
855 
856  if (debug_ts) {
857  av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
858  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
859  av_get_media_type_string(ost->enc_ctx->codec_type),
862  pkt->size
863  );
864  }
865 
867  if (ret < 0) {
868  print_error("av_interleaved_write_frame()", ret);
869  main_return_code = 1;
871  }
873 }
874 
876 {
877  OutputFile *of = output_files[ost->file_index];
878 
879  ost->finished |= ENCODER_FINISHED;
880  if (of->shortest) {
881  int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, AV_TIME_BASE_Q);
882  of->recording_time = FFMIN(of->recording_time, end);
883  }
884 }
885 
886 /*
887  * Send a single packet to the output, applying any bitstream filters
888  * associated with the output stream. This may result in any number
889  * of packets actually being written, depending on what bitstream
890  * filters are applied. The supplied packet is consumed and will be
891  * blank (as if newly-allocated) when this function returns.
892  *
893  * If eof is set, instead indicate EOF to all bitstream filters and
894  * therefore flush any delayed packets to the output. A blank packet
895  * must be supplied in this case.
896  */
898  OutputStream *ost, int eof)
899 {
900  int ret = 0;
901 
902  /* apply the output bitstream filters */
903  if (ost->bsf_ctx) {
904  ret = av_bsf_send_packet(ost->bsf_ctx, eof ? NULL : pkt);
905  if (ret < 0)
906  goto finish;
907  while ((ret = av_bsf_receive_packet(ost->bsf_ctx, pkt)) >= 0)
908  write_packet(of, pkt, ost, 0);
909  if (ret == AVERROR(EAGAIN))
910  ret = 0;
911  } else if (!eof)
912  write_packet(of, pkt, ost, 0);
913 
914 finish:
915  if (ret < 0 && ret != AVERROR_EOF) {
916  av_log(NULL, AV_LOG_ERROR, "Error applying bitstream filters to an output "
917  "packet for stream #%d:%d.\n", ost->file_index, ost->index);
918  if(exit_on_error)
919  exit_program(1);
920  }
921 }
922 
924 {
925  OutputFile *of = output_files[ost->file_index];
926 
927  if (of->recording_time != INT64_MAX &&
928  av_compare_ts(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, of->recording_time,
929  AV_TIME_BASE_Q) >= 0) {
931  return 0;
932  }
933  return 1;
934 }
935 
937  AVFrame *frame)
938 {
939  double float_pts = AV_NOPTS_VALUE; // this is identical to frame.pts but with higher precision
940  AVCodecContext *enc = ost->enc_ctx;
941  if (!frame || frame->pts == AV_NOPTS_VALUE ||
942  !enc || !ost->filter || !ost->filter->graph->graph)
943  goto early_exit;
944 
945  {
946  AVFilterContext *filter = ost->filter->filter;
947 
948  int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
950  AVRational tb = enc->time_base;
951  int extra_bits = av_clip(29 - av_log2(tb.den), 0, 16);
952 
953  tb.den <<= extra_bits;
954  float_pts =
955  av_rescale_q(frame->pts, filter_tb, tb) -
957  float_pts /= 1 << extra_bits;
958  // 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
959  float_pts += FFSIGN(float_pts) * 1.0 / (1<<17);
960 
961  frame->pts =
962  av_rescale_q(frame->pts, filter_tb, enc->time_base) -
964  }
965 
966 early_exit:
967 
968  if (debug_ts) {
969  av_log(NULL, AV_LOG_INFO, "filter -> pts:%s pts_time:%s exact:%f time_base:%d/%d\n",
970  frame ? av_ts2str(frame->pts) : "NULL",
971  frame ? av_ts2timestr(frame->pts, &enc->time_base) : "NULL",
972  float_pts,
973  enc ? enc->time_base.num : -1,
974  enc ? enc->time_base.den : -1);
975  }
976 
977  return float_pts;
978 }
979 
981  char *error, int error_len);
982 
984  unsigned int fatal)
985 {
986  int ret = AVERROR_BUG;
987  char error[1024] = {0};
988 
989  if (ost->initialized)
990  return 0;
991 
992  ret = init_output_stream(ost, frame, error, sizeof(error));
993  if (ret < 0) {
994  av_log(NULL, AV_LOG_ERROR, "Error initializing output stream %d:%d -- %s\n",
995  ost->file_index, ost->index, error);
996 
997  if (fatal)
998  exit_program(1);
999  }
1000 
1001  return ret;
1002 }
1003 
1005  AVFrame *frame)
1006 {
1007  AVCodecContext *enc = ost->enc_ctx;
1008  AVPacket *pkt = ost->pkt;
1009  int ret;
1010 
1012 
1013  if (!check_recording_time(ost))
1014  return;
1015 
1016  if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
1017  frame->pts = ost->sync_opts;
1018  ost->sync_opts = frame->pts + frame->nb_samples;
1019  ost->samples_encoded += frame->nb_samples;
1020  ost->frames_encoded++;
1021 
1023  if (debug_ts) {
1024  av_log(NULL, AV_LOG_INFO, "encoder <- type:audio "
1025  "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
1027  enc->time_base.num, enc->time_base.den);
1028  }
1029 
1030  ret = avcodec_send_frame(enc, frame);
1031  if (ret < 0)
1032  goto error;
1033 
1034  while (1) {
1036  ret = avcodec_receive_packet(enc, pkt);
1037  if (ret == AVERROR(EAGAIN))
1038  break;
1039  if (ret < 0)
1040  goto error;
1041 
1042  update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
1043 
1044  av_packet_rescale_ts(pkt, enc->time_base, ost->mux_timebase);
1045 
1046  if (debug_ts) {
1047  av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
1048  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
1051  }
1052 
1053  output_packet(of, pkt, ost, 0);
1054  }
1055 
1056  return;
1057 error:
1058  av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
1059  exit_program(1);
1060 }
1061 
1062 static void do_subtitle_out(OutputFile *of,
1063  OutputStream *ost,
1064  AVSubtitle *sub)
1065 {
1066  int subtitle_out_max_size = 1024 * 1024;
1067  int subtitle_out_size, nb, i;
1068  AVCodecContext *enc;
1069  AVPacket *pkt = ost->pkt;
1070  int64_t pts;
1071 
1072  if (sub->pts == AV_NOPTS_VALUE) {
1073  av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
1074  if (exit_on_error)
1075  exit_program(1);
1076  return;
1077  }
1078 
1079  enc = ost->enc_ctx;
1080 
1081  if (!subtitle_out) {
1082  subtitle_out = av_malloc(subtitle_out_max_size);
1083  if (!subtitle_out) {
1084  av_log(NULL, AV_LOG_FATAL, "Failed to allocate subtitle_out\n");
1085  exit_program(1);
1086  }
1087  }
1088 
1089  /* Note: DVB subtitle need one packet to draw them and one other
1090  packet to clear them */
1091  /* XXX: signal it in the codec context ? */
1092  if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
1093  nb = 2;
1094  else
1095  nb = 1;
1096 
1097  /* shift timestamp to honor -ss and make check_recording_time() work with -t */
1098  pts = sub->pts;
1099  if (output_files[ost->file_index]->start_time != AV_NOPTS_VALUE)
1100  pts -= output_files[ost->file_index]->start_time;
1101  for (i = 0; i < nb; i++) {
1102  unsigned save_num_rects = sub->num_rects;
1103 
1104  ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
1105  if (!check_recording_time(ost))
1106  return;
1107 
1108  sub->pts = pts;
1109  // start_display_time is required to be 0
1110  sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
1111  sub->end_display_time -= sub->start_display_time;
1112  sub->start_display_time = 0;
1113  if (i == 1)
1114  sub->num_rects = 0;
1115 
1116  ost->frames_encoded++;
1117 
1118  subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1119  subtitle_out_max_size, sub);
1120  if (i == 1)
1121  sub->num_rects = save_num_rects;
1122  if (subtitle_out_size < 0) {
1123  av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
1124  exit_program(1);
1125  }
1126 
1128  pkt->data = subtitle_out;
1129  pkt->size = subtitle_out_size;
1130  pkt->pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->mux_timebase);
1131  pkt->duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->mux_timebase);
1132  if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
1133  /* XXX: the pts correction is handled here. Maybe handling
1134  it in the codec would be better */
1135  if (i == 0)
1136  pkt->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, ost->mux_timebase);
1137  else
1138  pkt->pts += av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->mux_timebase);
1139  }
1140  pkt->dts = pkt->pts;
1141  output_packet(of, pkt, ost, 0);
1142  }
1143 }
1144 
1145 static void do_video_out(OutputFile *of,
1146  OutputStream *ost,
1147  AVFrame *next_picture)
1148 {
1149  int ret, format_video_sync;
1150  AVPacket *pkt = ost->pkt;
1151  AVCodecContext *enc = ost->enc_ctx;
1152  AVRational frame_rate;
1153  int nb_frames, nb0_frames, i;
1154  double delta, delta0;
1155  double duration = 0;
1156  double sync_ipts = AV_NOPTS_VALUE;
1157  int frame_size = 0;
1158  InputStream *ist = NULL;
1159  AVFilterContext *filter = ost->filter->filter;
1160 
1161  init_output_stream_wrapper(ost, next_picture, 1);
1162  sync_ipts = adjust_frame_pts_to_encoder_tb(of, ost, next_picture);
1163 
1164  if (ost->source_index >= 0)
1165  ist = input_streams[ost->source_index];
1166 
1167  frame_rate = av_buffersink_get_frame_rate(filter);
1168  if (frame_rate.num > 0 && frame_rate.den > 0)
1169  duration = 1/(av_q2d(frame_rate) * av_q2d(enc->time_base));
1170 
1171  if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
1172  duration = FFMIN(duration, 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base)));
1173 
1174  if (!ost->filters_script &&
1175  !ost->filters &&
1176  (nb_filtergraphs == 0 || !filtergraphs[0]->graph_desc) &&
1177  next_picture &&
1178  ist &&
1179  lrintf(next_picture->pkt_duration * av_q2d(ist->st->time_base) / av_q2d(enc->time_base)) > 0) {
1180  duration = lrintf(next_picture->pkt_duration * av_q2d(ist->st->time_base) / av_q2d(enc->time_base));
1181  }
1182 
1183  if (!next_picture) {
1184  //end, flushing
1185  nb0_frames = nb_frames = mid_pred(ost->last_nb0_frames[0],
1186  ost->last_nb0_frames[1],
1187  ost->last_nb0_frames[2]);
1188  } else {
1189  delta0 = sync_ipts - ost->sync_opts; // delta0 is the "drift" between the input frame (next_picture) and where it would fall in the output.
1190  delta = delta0 + duration;
1191 
1192  /* by default, we output a single frame */
1193  nb0_frames = 0; // tracks the number of times the PREVIOUS frame should be duplicated, mostly for variable framerate (VFR)
1194  nb_frames = 1;
1195 
1196  format_video_sync = video_sync_method;
1197  if (format_video_sync == VSYNC_AUTO) {
1198  if(!strcmp(of->ctx->oformat->name, "avi")) {
1199  format_video_sync = VSYNC_VFR;
1200  } else
1201  format_video_sync = (of->ctx->oformat->flags & AVFMT_VARIABLE_FPS) ? ((of->ctx->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : VSYNC_CFR;
1202  if ( ist
1203  && format_video_sync == VSYNC_CFR
1204  && input_files[ist->file_index]->ctx->nb_streams == 1
1205  && input_files[ist->file_index]->input_ts_offset == 0) {
1206  format_video_sync = VSYNC_VSCFR;
1207  }
1208  if (format_video_sync == VSYNC_CFR && copy_ts) {
1209  format_video_sync = VSYNC_VSCFR;
1210  }
1211  }
1212  ost->is_cfr = (format_video_sync == VSYNC_CFR || format_video_sync == VSYNC_VSCFR);
1213 
1214  if (delta0 < 0 &&
1215  delta > 0 &&
1216  format_video_sync != VSYNC_PASSTHROUGH &&
1217  format_video_sync != VSYNC_DROP) {
1218  if (delta0 < -0.6) {
1219  av_log(NULL, AV_LOG_VERBOSE, "Past duration %f too large\n", -delta0);
1220  } else
1221  av_log(NULL, AV_LOG_DEBUG, "Clipping frame in rate conversion by %f\n", -delta0);
1222  sync_ipts = ost->sync_opts;
1223  duration += delta0;
1224  delta0 = 0;
1225  }
1226 
1227  switch (format_video_sync) {
1228  case VSYNC_VSCFR:
1229  if (ost->frame_number == 0 && delta0 >= 0.5) {
1230  av_log(NULL, AV_LOG_DEBUG, "Not duplicating %d initial frames\n", (int)lrintf(delta0));
1231  delta = duration;
1232  delta0 = 0;
1233  ost->sync_opts = llrint(sync_ipts);
1234  }
1235  case VSYNC_CFR:
1236  // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1237  if (frame_drop_threshold && delta < frame_drop_threshold && ost->frame_number) {
1238  nb_frames = 0;
1239  } else if (delta < -1.1)
1240  nb_frames = 0;
1241  else if (delta > 1.1) {
1242  nb_frames = lrintf(delta);
1243  if (delta0 > 1.1)
1244  nb0_frames = llrintf(delta0 - 0.6);
1245  }
1246  break;
1247  case VSYNC_VFR:
1248  if (delta <= -0.6)
1249  nb_frames = 0;
1250  else if (delta > 0.6)
1251  ost->sync_opts = llrint(sync_ipts);
1252  break;
1253  case VSYNC_DROP:
1254  case VSYNC_PASSTHROUGH:
1255  ost->sync_opts = llrint(sync_ipts);
1256  break;
1257  default:
1258  av_assert0(0);
1259  }
1260  }
1261 
1262  nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
1263  nb0_frames = FFMIN(nb0_frames, nb_frames);
1264 
1265  memmove(ost->last_nb0_frames + 1,
1266  ost->last_nb0_frames,
1267  sizeof(ost->last_nb0_frames[0]) * (FF_ARRAY_ELEMS(ost->last_nb0_frames) - 1));
1268  ost->last_nb0_frames[0] = nb0_frames;
1269 
1270  if (nb0_frames == 0 && ost->last_dropped) {
1271  nb_frames_drop++;
1273  "*** dropping frame %d from stream %d at ts %"PRId64"\n",
1274  ost->frame_number, ost->st->index, ost->last_frame->pts);
1275  }
1276  if (nb_frames > (nb0_frames && ost->last_dropped) + (nb_frames > nb0_frames)) {
1277  if (nb_frames > dts_error_threshold * 30) {
1278  av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
1279  nb_frames_drop++;
1280  return;
1281  }
1282  nb_frames_dup += nb_frames - (nb0_frames && ost->last_dropped) - (nb_frames > nb0_frames);
1283  av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
1284  if (nb_frames_dup > dup_warning) {
1285  av_log(NULL, AV_LOG_WARNING, "More than %d frames duplicated\n", dup_warning);
1286  dup_warning *= 10;
1287  }
1288  }
1289  ost->last_dropped = nb_frames == nb0_frames && next_picture;
1290 
1291  /* duplicates frame if needed */
1292  for (i = 0; i < nb_frames; i++) {
1293  AVFrame *in_picture;
1294  int forced_keyframe = 0;
1295  double pts_time;
1296 
1297  if (i < nb0_frames && ost->last_frame) {
1298  in_picture = ost->last_frame;
1299  } else
1300  in_picture = next_picture;
1301 
1302  if (!in_picture)
1303  return;
1304 
1305  in_picture->pts = ost->sync_opts;
1306 
1307  if (!check_recording_time(ost))
1308  return;
1309 
1310  in_picture->quality = enc->global_quality;
1311  in_picture->pict_type = 0;
1312 
1313  if (ost->forced_kf_ref_pts == AV_NOPTS_VALUE &&
1314  in_picture->pts != AV_NOPTS_VALUE)
1315  ost->forced_kf_ref_pts = in_picture->pts;
1316 
1317  pts_time = in_picture->pts != AV_NOPTS_VALUE ?
1318  (in_picture->pts - ost->forced_kf_ref_pts) * av_q2d(enc->time_base) : NAN;
1319  if (ost->forced_kf_index < ost->forced_kf_count &&
1320  in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1321  ost->forced_kf_index++;
1322  forced_keyframe = 1;
1323  } else if (ost->forced_keyframes_pexpr) {
1324  double res;
1325  ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
1326  res = av_expr_eval(ost->forced_keyframes_pexpr,
1327  ost->forced_keyframes_expr_const_values, NULL);
1328  ff_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
1329  ost->forced_keyframes_expr_const_values[FKF_N],
1330  ost->forced_keyframes_expr_const_values[FKF_N_FORCED],
1331  ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N],
1332  ost->forced_keyframes_expr_const_values[FKF_T],
1333  ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T],
1334  res);
1335  if (res) {
1336  forced_keyframe = 1;
1337  ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] =
1338  ost->forced_keyframes_expr_const_values[FKF_N];
1339  ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] =
1340  ost->forced_keyframes_expr_const_values[FKF_T];
1341  ost->forced_keyframes_expr_const_values[FKF_N_FORCED] += 1;
1342  }
1343 
1344  ost->forced_keyframes_expr_const_values[FKF_N] += 1;
1345  } else if ( ost->forced_keyframes
1346  && !strncmp(ost->forced_keyframes, "source", 6)
1347  && in_picture->key_frame==1
1348  && !i) {
1349  forced_keyframe = 1;
1350  }
1351 
1352  if (forced_keyframe) {
1353  in_picture->pict_type = AV_PICTURE_TYPE_I;
1354  av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
1355  }
1356 
1358  if (debug_ts) {
1359  av_log(NULL, AV_LOG_INFO, "encoder <- type:video "
1360  "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
1361  av_ts2str(in_picture->pts), av_ts2timestr(in_picture->pts, &enc->time_base),
1362  enc->time_base.num, enc->time_base.den);
1363  }
1364 
1365  ost->frames_encoded++;
1366 
1367  ret = avcodec_send_frame(enc, in_picture);
1368  if (ret < 0)
1369  goto error;
1370  // Make sure Closed Captions will not be duplicated
1372 
1373  while (1) {
1375  ret = avcodec_receive_packet(enc, pkt);
1376  update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
1377  if (ret == AVERROR(EAGAIN))
1378  break;
1379  if (ret < 0)
1380  goto error;
1381 
1382  if (debug_ts) {
1383  av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
1384  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
1387  }
1388 
1390  pkt->pts = ost->sync_opts;
1391 
1392  av_packet_rescale_ts(pkt, enc->time_base, ost->mux_timebase);
1393 
1394  if (debug_ts) {
1395  av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
1396  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
1397  av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->mux_timebase),
1398  av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->mux_timebase));
1399  }
1400 
1401  frame_size = pkt->size;
1402  output_packet(of, pkt, ost, 0);
1403 
1404  /* if two pass, output log */
1405  if (ost->logfile && enc->stats_out) {
1406  fprintf(ost->logfile, "%s", enc->stats_out);
1407  }
1408  }
1409  ost->sync_opts++;
1410  /*
1411  * For video, number of frames in == number of packets out.
1412  * But there may be reordering, so we can't throw away frames on encoder
1413  * flush, we need to limit them here, before they go into encoder.
1414  */
1415  ost->frame_number++;
1416 
1417  if (vstats_filename && frame_size)
1419  }
1420 
1421  if (!ost->last_frame)
1422  ost->last_frame = av_frame_alloc();
1423  av_frame_unref(ost->last_frame);
1424  if (next_picture && ost->last_frame)
1425  av_frame_ref(ost->last_frame, next_picture);
1426  else
1427  av_frame_free(&ost->last_frame);
1428 
1429  return;
1430 error:
1431  av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1432  exit_program(1);
1433 }
1434 
1435 static double psnr(double d)
1436 {
1437  return -10.0 * log10(d);
1438 }
1439 
1441 {
1442  AVCodecContext *enc;
1443  int frame_number;
1444  double ti1, bitrate, avg_bitrate;
1445 
1446  /* this is executed just the first time do_video_stats is called */
1447  if (!vstats_file) {
1448  vstats_file = fopen(vstats_filename, "w");
1449  if (!vstats_file) {
1450  perror("fopen");
1451  exit_program(1);
1452  }
1453  }
1454 
1455  enc = ost->enc_ctx;
1456  if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1457  frame_number = ost->st->nb_frames;
1458  if (vstats_version <= 1) {
1459  fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number,
1460  ost->quality / (float)FF_QP2LAMBDA);
1461  } else {
1462  fprintf(vstats_file, "out= %2d st= %2d frame= %5d q= %2.1f ", ost->file_index, ost->index, frame_number,
1463  ost->quality / (float)FF_QP2LAMBDA);
1464  }
1465 
1466  if (ost->error[0]>=0 && (enc->flags & AV_CODEC_FLAG_PSNR))
1467  fprintf(vstats_file, "PSNR= %6.2f ", psnr(ost->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1468 
1469  fprintf(vstats_file,"f_size= %6d ", frame_size);
1470  /* compute pts value */
1471  ti1 = av_stream_get_end_pts(ost->st) * av_q2d(ost->st->time_base);
1472  if (ti1 < 0.01)
1473  ti1 = 0.01;
1474 
1475  bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1476  avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
1477  fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1478  (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
1479  fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(ost->pict_type));
1480  }
1481 }
1482 
1484 {
1485  OutputFile *of = output_files[ost->file_index];
1486  int i;
1487 
1488  ost->finished = ENCODER_FINISHED | MUXER_FINISHED;
1489 
1490  if (of->shortest) {
1491  for (i = 0; i < of->ctx->nb_streams; i++)
1493  }
1494 }
1495 
1496 /**
1497  * Get and encode new output from any of the filtergraphs, without causing
1498  * activity.
1499  *
1500  * @return 0 for success, <0 for severe errors
1501  */
1502 static int reap_filters(int flush)
1503 {
1504  AVFrame *filtered_frame = NULL;
1505  int i;
1506 
1507  /* Reap all buffers present in the buffer sinks */
1508  for (i = 0; i < nb_output_streams; i++) {
1510  OutputFile *of = output_files[ost->file_index];
1512  AVCodecContext *enc = ost->enc_ctx;
1513  int ret = 0;
1514 
1515  if (!ost->filter || !ost->filter->graph->graph)
1516  continue;
1517  filter = ost->filter->filter;
1518 
1519  /*
1520  * Unlike video, with audio the audio frame size matters.
1521  * Currently we are fully reliant on the lavfi filter chain to
1522  * do the buffering deed for us, and thus the frame size parameter
1523  * needs to be set accordingly. Where does one get the required
1524  * frame size? From the initialized AVCodecContext of an audio
1525  * encoder. Thus, if we have gotten to an audio stream, initialize
1526  * the encoder earlier than receiving the first AVFrame.
1527  */
1530 
1531  if (!ost->pkt && !(ost->pkt = av_packet_alloc())) {
1532  return AVERROR(ENOMEM);
1533  }
1534  if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
1535  return AVERROR(ENOMEM);
1536  }
1537  filtered_frame = ost->filtered_frame;
1538 
1539  while (1) {
1540  ret = av_buffersink_get_frame_flags(filter, filtered_frame,
1542  if (ret < 0) {
1543  if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1545  "Error in av_buffersink_get_frame_flags(): %s\n", av_err2str(ret));
1546  } else if (flush && ret == AVERROR_EOF) {
1548  do_video_out(of, ost, NULL);
1549  }
1550  break;
1551  }
1552  if (ost->finished) {
1553  av_frame_unref(filtered_frame);
1554  continue;
1555  }
1556 
1557  switch (av_buffersink_get_type(filter)) {
1558  case AVMEDIA_TYPE_VIDEO:
1559  if (!ost->frame_aspect_ratio.num)
1560  enc->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
1561 
1562  do_video_out(of, ost, filtered_frame);
1563  break;
1564  case AVMEDIA_TYPE_AUDIO:
1565  if (!(enc->codec->capabilities & AV_CODEC_CAP_PARAM_CHANGE) &&
1566  enc->channels != filtered_frame->channels) {
1568  "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
1569  break;
1570  }
1571  do_audio_out(of, ost, filtered_frame);
1572  break;
1573  default:
1574  // TODO support subtitle filters
1575  av_assert0(0);
1576  }
1577 
1578  av_frame_unref(filtered_frame);
1579  }
1580  }
1581 
1582  return 0;
1583 }
1584 
1585 static void print_final_stats(int64_t total_size)
1586 {
1587  uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
1588  uint64_t subtitle_size = 0;
1589  uint64_t data_size = 0;
1590  float percent = -1.0;
1591  int i, j;
1592  int pass1_used = 1;
1593 
1594  for (i = 0; i < nb_output_streams; i++) {
1596  switch (ost->enc_ctx->codec_type) {
1597  case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
1598  case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
1599  case AVMEDIA_TYPE_SUBTITLE: subtitle_size += ost->data_size; break;
1600  default: other_size += ost->data_size; break;
1601  }
1602  extra_size += ost->enc_ctx->extradata_size;
1603  data_size += ost->data_size;
1604  if ( (ost->enc_ctx->flags & (AV_CODEC_FLAG_PASS1 | AV_CODEC_FLAG_PASS2))
1606  pass1_used = 0;
1607  }
1608 
1609  if (data_size && total_size>0 && total_size >= data_size)
1610  percent = 100.0 * (total_size - data_size) / data_size;
1611 
1612  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: ",
1613  video_size / 1024.0,
1614  audio_size / 1024.0,
1615  subtitle_size / 1024.0,
1616  other_size / 1024.0,
1617  extra_size / 1024.0);
1618  if (percent >= 0.0)
1619  av_log(NULL, AV_LOG_INFO, "%f%%", percent);
1620  else
1621  av_log(NULL, AV_LOG_INFO, "unknown");
1622  av_log(NULL, AV_LOG_INFO, "\n");
1623 
1624  /* print verbose per-stream stats */
1625  for (i = 0; i < nb_input_files; i++) {
1626  InputFile *f = input_files[i];
1627  uint64_t total_packets = 0, total_size = 0;
1628 
1629  av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
1630  i, f->ctx->url);
1631 
1632  for (j = 0; j < f->nb_streams; j++) {
1633  InputStream *ist = input_streams[f->ist_index + j];
1634  enum AVMediaType type = ist->dec_ctx->codec_type;
1635 
1636  total_size += ist->data_size;
1637  total_packets += ist->nb_packets;
1638 
1639  av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
1640  i, j, media_type_string(type));
1641  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
1642  ist->nb_packets, ist->data_size);
1643 
1644  if (ist->decoding_needed) {
1645  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
1646  ist->frames_decoded);
1647  if (type == AVMEDIA_TYPE_AUDIO)
1648  av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
1649  av_log(NULL, AV_LOG_VERBOSE, "; ");
1650  }
1651 
1652  av_log(NULL, AV_LOG_VERBOSE, "\n");
1653  }
1654 
1655  av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
1656  total_packets, total_size);
1657  }
1658 
1659  for (i = 0; i < nb_output_files; i++) {
1660  OutputFile *of = output_files[i];
1661  uint64_t total_packets = 0, total_size = 0;
1662 
1663  av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
1664  i, of->ctx->url);
1665 
1666  for (j = 0; j < of->ctx->nb_streams; j++) {
1668  enum AVMediaType type = ost->enc_ctx->codec_type;
1669 
1670  total_size += ost->data_size;
1671  total_packets += ost->packets_written;
1672 
1673  av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
1674  i, j, media_type_string(type));
1675  if (ost->encoding_needed) {
1676  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
1677  ost->frames_encoded);
1678  if (type == AVMEDIA_TYPE_AUDIO)
1679  av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
1680  av_log(NULL, AV_LOG_VERBOSE, "; ");
1681  }
1682 
1683  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
1684  ost->packets_written, ost->data_size);
1685 
1686  av_log(NULL, AV_LOG_VERBOSE, "\n");
1687  }
1688 
1689  av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
1690  total_packets, total_size);
1691  }
1692  if(video_size + data_size + audio_size + subtitle_size + extra_size == 0){
1693  av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded ");
1694  if (pass1_used) {
1695  av_log(NULL, AV_LOG_WARNING, "\n");
1696  } else {
1697  av_log(NULL, AV_LOG_WARNING, "(check -ss / -t / -frames parameters if used)\n");
1698  }
1699  }
1700 }
1701 
1702 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1703 {
1704  AVBPrint buf, buf_script;
1705  OutputStream *ost;
1706  AVFormatContext *oc;
1707  int64_t total_size;
1708  AVCodecContext *enc;
1709  int frame_number, vid, i;
1710  double bitrate;
1711  double speed;
1712  int64_t pts = INT64_MIN + 1;
1713  static int64_t last_time = -1;
1714  static int first_report = 1;
1715  static int qp_histogram[52];
1716  int hours, mins, secs, us;
1717  const char *hours_sign;
1718  int ret;
1719  float t;
1720 
1721  if (!print_stats && !is_last_report && !progress_avio)
1722  return;
1723 
1724  if (!is_last_report) {
1725  if (last_time == -1) {
1726  last_time = cur_time;
1727  }
1728  if (((cur_time - last_time) < stats_period && !first_report) ||
1729  (first_report && nb_output_dumped < nb_output_files))
1730  return;
1731  last_time = cur_time;
1732  }
1733 
1734  t = (cur_time-timer_start) / 1000000.0;
1735 
1736 
1737  oc = output_files[0]->ctx;
1738 
1739  total_size = avio_size(oc->pb);
1740  if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
1741  total_size = avio_tell(oc->pb);
1742 
1743  vid = 0;
1745  av_bprint_init(&buf_script, 0, AV_BPRINT_SIZE_AUTOMATIC);
1746  for (i = 0; i < nb_output_streams; i++) {
1747  float q = -1;
1748  ost = output_streams[i];
1749  enc = ost->enc_ctx;
1750  if (!ost->stream_copy)
1751  q = ost->quality / (float) FF_QP2LAMBDA;
1752 
1753  if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1754  av_bprintf(&buf, "q=%2.1f ", q);
1755  av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1756  ost->file_index, ost->index, q);
1757  }
1758  if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1759  float fps;
1760 
1761  frame_number = ost->frame_number;
1762  fps = t > 1 ? frame_number / t : 0;
1763  av_bprintf(&buf, "frame=%5d fps=%3.*f q=%3.1f ",
1764  frame_number, fps < 9.95, fps, q);
1765  av_bprintf(&buf_script, "frame=%d\n", frame_number);
1766  av_bprintf(&buf_script, "fps=%.2f\n", fps);
1767  av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1768  ost->file_index, ost->index, q);
1769  if (is_last_report)
1770  av_bprintf(&buf, "L");
1771  if (qp_hist) {
1772  int j;
1773  int qp = lrintf(q);
1774  if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1775  qp_histogram[qp]++;
1776  for (j = 0; j < 32; j++)
1777  av_bprintf(&buf, "%X", av_log2(qp_histogram[j] + 1));
1778  }
1779 
1780  if ((enc->flags & AV_CODEC_FLAG_PSNR) && (ost->pict_type != AV_PICTURE_TYPE_NONE || is_last_report)) {
1781  int j;
1782  double error, error_sum = 0;
1783  double scale, scale_sum = 0;
1784  double p;
1785  char type[3] = { 'Y','U','V' };
1786  av_bprintf(&buf, "PSNR=");
1787  for (j = 0; j < 3; j++) {
1788  if (is_last_report) {
1789  error = enc->error[j];
1790  scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1791  } else {
1792  error = ost->error[j];
1793  scale = enc->width * enc->height * 255.0 * 255.0;
1794  }
1795  if (j)
1796  scale /= 4;
1797  error_sum += error;
1798  scale_sum += scale;
1799  p = psnr(error / scale);
1800  av_bprintf(&buf, "%c:%2.2f ", type[j], p);
1801  av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1802  ost->file_index, ost->index, type[j] | 32, p);
1803  }
1804  p = psnr(error_sum / scale_sum);
1805  av_bprintf(&buf, "*:%2.2f ", psnr(error_sum / scale_sum));
1806  av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1807  ost->file_index, ost->index, p);
1808  }
1809  vid = 1;
1810  }
1811  /* compute min output value */
1814  ost->st->time_base, AV_TIME_BASE_Q));
1815  if (copy_ts) {
1816  if (copy_ts_first_pts == AV_NOPTS_VALUE && pts > 1)
1820  }
1821  }
1822 
1823  if (is_last_report)
1824  nb_frames_drop += ost->last_dropped;
1825  }
1826 
1827  secs = FFABS(pts) / AV_TIME_BASE;
1828  us = FFABS(pts) % AV_TIME_BASE;
1829  mins = secs / 60;
1830  secs %= 60;
1831  hours = mins / 60;
1832  mins %= 60;
1833  hours_sign = (pts < 0) ? "-" : "";
1834 
1835  bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
1836  speed = t != 0.0 ? (double)pts / AV_TIME_BASE / t : -1;
1837 
1838  if (total_size < 0) av_bprintf(&buf, "size=N/A time=");
1839  else av_bprintf(&buf, "size=%8.0fkB time=", total_size / 1024.0);
1840  if (pts == AV_NOPTS_VALUE) {
1841  av_bprintf(&buf, "N/A ");
1842  } else {
1843  av_bprintf(&buf, "%s%02d:%02d:%02d.%02d ",
1844  hours_sign, hours, mins, secs, (100 * us) / AV_TIME_BASE);
1845  }
1846 
1847  if (bitrate < 0) {
1848  av_bprintf(&buf, "bitrate=N/A");
1849  av_bprintf(&buf_script, "bitrate=N/A\n");
1850  }else{
1851  av_bprintf(&buf, "bitrate=%6.1fkbits/s", bitrate);
1852  av_bprintf(&buf_script, "bitrate=%6.1fkbits/s\n", bitrate);
1853  }
1854 
1855  if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
1856  else av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1857  if (pts == AV_NOPTS_VALUE) {
1858  av_bprintf(&buf_script, "out_time_us=N/A\n");
1859  av_bprintf(&buf_script, "out_time_ms=N/A\n");
1860  av_bprintf(&buf_script, "out_time=N/A\n");
1861  } else {
1862  av_bprintf(&buf_script, "out_time_us=%"PRId64"\n", pts);
1863  av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1864  av_bprintf(&buf_script, "out_time=%s%02d:%02d:%02d.%06d\n",
1865  hours_sign, hours, mins, secs, us);
1866  }
1867 
1869  av_bprintf(&buf, " dup=%d drop=%d", nb_frames_dup, nb_frames_drop);
1870  av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1871  av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1872 
1873  if (speed < 0) {
1874  av_bprintf(&buf, " speed=N/A");
1875  av_bprintf(&buf_script, "speed=N/A\n");
1876  } else {
1877  av_bprintf(&buf, " speed=%4.3gx", speed);
1878  av_bprintf(&buf_script, "speed=%4.3gx\n", speed);
1879  }
1880 
1881  if (print_stats || is_last_report) {
1882  const char end = is_last_report ? '\n' : '\r';
1883  if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
1884  fprintf(stderr, "%s %c", buf.str, end);
1885  } else
1886  av_log(NULL, AV_LOG_INFO, "%s %c", buf.str, end);
1887 
1888  fflush(stderr);
1889  }
1890  av_bprint_finalize(&buf, NULL);
1891 
1892  if (progress_avio) {
1893  av_bprintf(&buf_script, "progress=%s\n",
1894  is_last_report ? "end" : "continue");
1895  avio_write(progress_avio, buf_script.str,
1896  FFMIN(buf_script.len, buf_script.size - 1));
1898  av_bprint_finalize(&buf_script, NULL);
1899  if (is_last_report) {
1900  if ((ret = avio_closep(&progress_avio)) < 0)
1902  "Error closing progress log, loss of information possible: %s\n", av_err2str(ret));
1903  }
1904  }
1905 
1906  first_report = 0;
1907 
1908  if (is_last_report)
1909  print_final_stats(total_size);
1910 }
1911 
1913 {
1914  // We never got any input. Set a fake format, which will
1915  // come from libavformat.
1916  ifilter->format = par->format;
1917  ifilter->sample_rate = par->sample_rate;
1918  ifilter->channels = par->channels;
1919  ifilter->channel_layout = par->channel_layout;
1920  ifilter->width = par->width;
1921  ifilter->height = par->height;
1922  ifilter->sample_aspect_ratio = par->sample_aspect_ratio;
1923 }
1924 
1925 static void flush_encoders(void)
1926 {
1927  int i, ret;
1928 
1929  for (i = 0; i < nb_output_streams; i++) {
1931  AVCodecContext *enc = ost->enc_ctx;
1932  OutputFile *of = output_files[ost->file_index];
1933 
1934  if (!ost->encoding_needed)
1935  continue;
1936 
1937  // Try to enable encoding with no input frames.
1938  // Maybe we should just let encoding fail instead.
1939  if (!ost->initialized) {
1940  FilterGraph *fg = ost->filter->graph;
1941 
1943  "Finishing stream %d:%d without any data written to it.\n",
1944  ost->file_index, ost->st->index);
1945 
1946  if (ost->filter && !fg->graph) {
1947  int x;
1948  for (x = 0; x < fg->nb_inputs; x++) {
1949  InputFilter *ifilter = fg->inputs[x];
1950  if (ifilter->format < 0)
1951  ifilter_parameters_from_codecpar(ifilter, ifilter->ist->st->codecpar);
1952  }
1953 
1955  continue;
1956 
1957  ret = configure_filtergraph(fg);
1958  if (ret < 0) {
1959  av_log(NULL, AV_LOG_ERROR, "Error configuring filter graph\n");
1960  exit_program(1);
1961  }
1962 
1964  }
1965 
1967  }
1968 
1970  continue;
1971 
1972  for (;;) {
1973  const char *desc = NULL;
1974  AVPacket *pkt = ost->pkt;
1975  int pkt_size;
1976 
1977  if (!pkt)
1978  break;
1979 
1980  switch (enc->codec_type) {
1981  case AVMEDIA_TYPE_AUDIO:
1982  desc = "audio";
1983  break;
1984  case AVMEDIA_TYPE_VIDEO:
1985  desc = "video";
1986  break;
1987  default:
1988  av_assert0(0);
1989  }
1990 
1992 
1994  while ((ret = avcodec_receive_packet(enc, pkt)) == AVERROR(EAGAIN)) {
1995  ret = avcodec_send_frame(enc, NULL);
1996  if (ret < 0) {
1997  av_log(NULL, AV_LOG_FATAL, "%s encoding failed: %s\n",
1998  desc,
1999  av_err2str(ret));
2000  exit_program(1);
2001  }
2002  }
2003 
2004  update_benchmark("flush_%s %d.%d", desc, ost->file_index, ost->index);
2005  if (ret < 0 && ret != AVERROR_EOF) {
2006  av_log(NULL, AV_LOG_FATAL, "%s encoding failed: %s\n",
2007  desc,
2008  av_err2str(ret));
2009  exit_program(1);
2010  }
2011  if (ost->logfile && enc->stats_out) {
2012  fprintf(ost->logfile, "%s", enc->stats_out);
2013  }
2014  if (ret == AVERROR_EOF) {
2015  output_packet(of, pkt, ost, 1);
2016  break;
2017  }
2018  if (ost->finished & MUXER_FINISHED) {
2020  continue;
2021  }
2022  av_packet_rescale_ts(pkt, enc->time_base, ost->mux_timebase);
2023  pkt_size = pkt->size;
2024  output_packet(of, pkt, ost, 0);
2025  if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO && vstats_filename) {
2026  do_video_stats(ost, pkt_size);
2027  }
2028  }
2029  }
2030 }
2031 
2032 /*
2033  * Check whether a packet from ist should be written into ost at this time
2034  */
2036 {
2037  OutputFile *of = output_files[ost->file_index];
2038  int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
2039 
2040  if (ost->source_index != ist_index)
2041  return 0;
2042 
2043  if (ost->finished)
2044  return 0;
2045 
2046  if (of->start_time != AV_NOPTS_VALUE && ist->pts < of->start_time)
2047  return 0;
2048 
2049  return 1;
2050 }
2051 
2053 {
2054  OutputFile *of = output_files[ost->file_index];
2055  InputFile *f = input_files [ist->file_index];
2056  int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
2057  int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->mux_timebase);
2058  AVPacket *opkt = ost->pkt;
2059 
2060  av_packet_unref(opkt);
2061  // EOF: flush output bitstream filters.
2062  if (!pkt) {
2063  output_packet(of, opkt, ost, 1);
2064  return;
2065  }
2066 
2067  if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
2068  !ost->copy_initial_nonkeyframes)
2069  return;
2070 
2071  if (!ost->frame_number && !ost->copy_prior_start) {
2072  int64_t comp_start = start_time;
2073  if (copy_ts && f->start_time != AV_NOPTS_VALUE)
2074  comp_start = FFMAX(start_time, f->start_time + f->ts_offset);
2075  if (pkt->pts == AV_NOPTS_VALUE ?
2076  ist->pts < comp_start :
2077  pkt->pts < av_rescale_q(comp_start, AV_TIME_BASE_Q, ist->st->time_base))
2078  return;
2079  }
2080 
2081  if (of->recording_time != INT64_MAX &&
2082  ist->pts >= of->recording_time + start_time) {
2084  return;
2085  }
2086 
2087  if (f->recording_time != INT64_MAX) {
2088  start_time = f->ctx->start_time;
2089  if (f->start_time != AV_NOPTS_VALUE && copy_ts)
2090  start_time += f->start_time;
2091  if (ist->pts >= f->recording_time + start_time) {
2093  return;
2094  }
2095  }
2096 
2097  /* force the input stream PTS */
2098  if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
2099  ost->sync_opts++;
2100 
2101  if (av_packet_ref(opkt, pkt) < 0)
2102  exit_program(1);
2103 
2104  if (pkt->pts != AV_NOPTS_VALUE)
2105  opkt->pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->mux_timebase) - ost_tb_start_time;
2106 
2107  if (pkt->dts == AV_NOPTS_VALUE) {
2108  opkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->mux_timebase);
2109  } else if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
2111  if(!duration)
2112  duration = ist->dec_ctx->frame_size;
2113  opkt->dts = av_rescale_delta(ist->st->time_base, pkt->dts,
2114  (AVRational){1, ist->dec_ctx->sample_rate}, duration,
2115  &ist->filter_in_rescale_delta_last, ost->mux_timebase);
2116  /* dts will be set immediately afterwards to what pts is now */
2117  opkt->pts = opkt->dts - ost_tb_start_time;
2118  } else
2119  opkt->dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->mux_timebase);
2120  opkt->dts -= ost_tb_start_time;
2121 
2122  opkt->duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->mux_timebase);
2123 
2124  output_packet(of, opkt, ost, 0);
2125 }
2126 
2128 {
2129  AVCodecContext *dec = ist->dec_ctx;
2130 
2131  if (!dec->channel_layout) {
2132  char layout_name[256];
2133 
2134  if (dec->channels > ist->guess_layout_max)
2135  return 0;
2136  dec->channel_layout = av_get_default_channel_layout(dec->channels);
2137  if (!dec->channel_layout)
2138  return 0;
2139  av_get_channel_layout_string(layout_name, sizeof(layout_name),
2140  dec->channels, dec->channel_layout);
2141  av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
2142  "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
2143  }
2144  return 1;
2145 }
2146 
2147 static void check_decode_result(InputStream *ist, int *got_output, int ret)
2148 {
2149  if (*got_output || ret<0)
2150  decode_error_stat[ret<0] ++;
2151 
2152  if (ret < 0 && exit_on_error)
2153  exit_program(1);
2154 
2155  if (*got_output && ist) {
2158  "%s: corrupt decoded frame in stream %d\n", input_files[ist->file_index]->ctx->url, ist->st->index);
2159  if (exit_on_error)
2160  exit_program(1);
2161  }
2162  }
2163 }
2164 
2165 // Filters can be configured only if the formats of all inputs are known.
2167 {
2168  int i;
2169  for (i = 0; i < fg->nb_inputs; i++) {
2170  if (fg->inputs[i]->format < 0 && (fg->inputs[i]->type == AVMEDIA_TYPE_AUDIO ||
2171  fg->inputs[i]->type == AVMEDIA_TYPE_VIDEO))
2172  return 0;
2173  }
2174  return 1;
2175 }
2176 
2178 {
2179  FilterGraph *fg = ifilter->graph;
2180  int need_reinit, ret, i;
2181 
2182  /* determine if the parameters for this input changed */
2183  need_reinit = ifilter->format != frame->format;
2184 
2185  switch (ifilter->ist->st->codecpar->codec_type) {
2186  case AVMEDIA_TYPE_AUDIO:
2187  need_reinit |= ifilter->sample_rate != frame->sample_rate ||
2188  ifilter->channels != frame->channels ||
2189  ifilter->channel_layout != frame->channel_layout;
2190  break;
2191  case AVMEDIA_TYPE_VIDEO:
2192  need_reinit |= ifilter->width != frame->width ||
2193  ifilter->height != frame->height;
2194  break;
2195  }
2196 
2197  if (!ifilter->ist->reinit_filters && fg->graph)
2198  need_reinit = 0;
2199 
2200  if (!!ifilter->hw_frames_ctx != !!frame->hw_frames_ctx ||
2201  (ifilter->hw_frames_ctx && ifilter->hw_frames_ctx->data != frame->hw_frames_ctx->data))
2202  need_reinit = 1;
2203 
2204  if (need_reinit) {
2206  if (ret < 0)
2207  return ret;
2208  }
2209 
2210  /* (re)init the graph if possible, otherwise buffer the frame and return */
2211  if (need_reinit || !fg->graph) {
2212  for (i = 0; i < fg->nb_inputs; i++) {
2213  if (!ifilter_has_all_input_formats(fg)) {
2215  if (!tmp)
2216  return AVERROR(ENOMEM);
2218 
2219  if (!av_fifo_space(ifilter->frame_queue)) {
2220  ret = av_fifo_realloc2(ifilter->frame_queue, 2 * av_fifo_size(ifilter->frame_queue));
2221  if (ret < 0) {
2222  av_frame_free(&tmp);
2223  return ret;
2224  }
2225  }
2226  av_fifo_generic_write(ifilter->frame_queue, &tmp, sizeof(tmp), NULL);
2227  return 0;
2228  }
2229  }
2230 
2231  ret = reap_filters(1);
2232  if (ret < 0 && ret != AVERROR_EOF) {
2233  av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", av_err2str(ret));
2234  return ret;
2235  }
2236 
2237  ret = configure_filtergraph(fg);
2238  if (ret < 0) {
2239  av_log(NULL, AV_LOG_ERROR, "Error reinitializing filters!\n");
2240  return ret;
2241  }
2242  }
2243 
2245  if (ret < 0) {
2246  if (ret != AVERROR_EOF)
2247  av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", av_err2str(ret));
2248  return ret;
2249  }
2250 
2251  return 0;
2252 }
2253 
2254 static int ifilter_send_eof(InputFilter *ifilter, int64_t pts)
2255 {
2256  int ret;
2257 
2258  ifilter->eof = 1;
2259 
2260  if (ifilter->filter) {
2262  if (ret < 0)
2263  return ret;
2264  } else {
2265  // the filtergraph was never configured
2266  if (ifilter->format < 0)
2267  ifilter_parameters_from_codecpar(ifilter, ifilter->ist->st->codecpar);
2268  if (ifilter->format < 0 && (ifilter->type == AVMEDIA_TYPE_AUDIO || ifilter->type == AVMEDIA_TYPE_VIDEO)) {
2269  av_log(NULL, AV_LOG_ERROR, "Cannot determine format of input stream %d:%d after EOF\n", ifilter->ist->file_index, ifilter->ist->st->index);
2270  return AVERROR_INVALIDDATA;
2271  }
2272  }
2273 
2274  return 0;
2275 }
2276 
2277 // This does not quite work like avcodec_decode_audio4/avcodec_decode_video2.
2278 // There is the following difference: if you got a frame, you must call
2279 // it again with pkt=NULL. pkt==NULL is treated differently from pkt->size==0
2280 // (pkt==NULL means get more output, pkt->size==0 is a flush/drain packet)
2281 static int decode(AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *pkt)
2282 {
2283  int ret;
2284 
2285  *got_frame = 0;
2286 
2287  if (pkt) {
2288  ret = avcodec_send_packet(avctx, pkt);
2289  // In particular, we don't expect AVERROR(EAGAIN), because we read all
2290  // decoded frames with avcodec_receive_frame() until done.
2291  if (ret < 0 && ret != AVERROR_EOF)
2292  return ret;
2293  }
2294 
2295  ret = avcodec_receive_frame(avctx, frame);
2296  if (ret < 0 && ret != AVERROR(EAGAIN))
2297  return ret;
2298  if (ret >= 0)
2299  *got_frame = 1;
2300 
2301  return 0;
2302 }
2303 
2305 {
2306  int i, ret;
2307  AVFrame *f;
2308 
2309  av_assert1(ist->nb_filters > 0); /* ensure ret is initialized */
2310  for (i = 0; i < ist->nb_filters; i++) {
2311  if (i < ist->nb_filters - 1) {
2312  f = ist->filter_frame;
2314  if (ret < 0)
2315  break;
2316  } else
2317  f = decoded_frame;
2318  ret = ifilter_send_frame(ist->filters[i], f);
2319  if (ret == AVERROR_EOF)
2320  ret = 0; /* ignore */
2321  if (ret < 0) {
2323  "Failed to inject frame into filter network: %s\n", av_err2str(ret));
2324  break;
2325  }
2326  }
2327  return ret;
2328 }
2329 
2331  int *decode_failed)
2332 {
2334  AVCodecContext *avctx = ist->dec_ctx;
2335  int ret, err = 0;
2336  AVRational decoded_frame_tb;
2337 
2338  if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
2339  return AVERROR(ENOMEM);
2340  if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
2341  return AVERROR(ENOMEM);
2343 
2345  ret = decode(avctx, decoded_frame, got_output, pkt);
2346  update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
2347  if (ret < 0)
2348  *decode_failed = 1;
2349 
2350  if (ret >= 0 && avctx->sample_rate <= 0) {
2351  av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
2353  }
2354 
2355  if (ret != AVERROR_EOF)
2357 
2358  if (!*got_output || ret < 0)
2359  return ret;
2360 
2362  ist->frames_decoded++;
2363 
2364  /* increment next_dts to use for the case where the input stream does not
2365  have timestamps or there are multiple frames in the packet */
2366  ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
2367  avctx->sample_rate;
2368  ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
2369  avctx->sample_rate;
2370 
2371  if (decoded_frame->pts != AV_NOPTS_VALUE) {
2372  decoded_frame_tb = ist->st->time_base;
2373  } else if (pkt && pkt->pts != AV_NOPTS_VALUE) {
2374  decoded_frame->pts = pkt->pts;
2375  decoded_frame_tb = ist->st->time_base;
2376  }else {
2377  decoded_frame->pts = ist->dts;
2378  decoded_frame_tb = AV_TIME_BASE_Q;
2379  }
2381  decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
2382  (AVRational){1, avctx->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
2383  (AVRational){1, avctx->sample_rate});
2386 
2389  return err < 0 ? err : ret;
2390 }
2391 
2392 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output, int64_t *duration_pts, int eof,
2393  int *decode_failed)
2394 {
2396  int i, ret = 0, err = 0;
2397  int64_t best_effort_timestamp;
2398  int64_t dts = AV_NOPTS_VALUE;
2399 
2400  // With fate-indeo3-2, we're getting 0-sized packets before EOF for some
2401  // reason. This seems like a semi-critical bug. Don't trigger EOF, and
2402  // skip the packet.
2403  if (!eof && pkt && pkt->size == 0)
2404  return 0;
2405 
2406  if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
2407  return AVERROR(ENOMEM);
2408  if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
2409  return AVERROR(ENOMEM);
2411  if (ist->dts != AV_NOPTS_VALUE)
2412  dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
2413  if (pkt) {
2414  pkt->dts = dts; // ffmpeg.c probably shouldn't do this
2415  }
2416 
2417  // The old code used to set dts on the drain packet, which does not work
2418  // with the new API anymore.
2419  if (eof) {
2420  void *new = av_realloc_array(ist->dts_buffer, ist->nb_dts_buffer + 1, sizeof(ist->dts_buffer[0]));
2421  if (!new)
2422  return AVERROR(ENOMEM);
2423  ist->dts_buffer = new;
2424  ist->dts_buffer[ist->nb_dts_buffer++] = dts;
2425  }
2426 
2429  update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
2430  if (ret < 0)
2431  *decode_failed = 1;
2432 
2433  // The following line may be required in some cases where there is no parser
2434  // or the parser does not has_b_frames correctly
2435  if (ist->st->codecpar->video_delay < ist->dec_ctx->has_b_frames) {
2436  if (ist->dec_ctx->codec_id == AV_CODEC_ID_H264) {
2437  ist->st->codecpar->video_delay = ist->dec_ctx->has_b_frames;
2438  } else
2440  "video_delay is larger in decoder than demuxer %d > %d.\n"
2441  "If you want to help, upload a sample "
2442  "of this file to https://streams.videolan.org/upload/ "
2443  "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n",
2444  ist->dec_ctx->has_b_frames,
2445  ist->st->codecpar->video_delay);
2446  }
2447 
2448  if (ret != AVERROR_EOF)
2450 
2451  if (*got_output && ret >= 0) {
2452  if (ist->dec_ctx->width != decoded_frame->width ||
2453  ist->dec_ctx->height != decoded_frame->height ||
2454  ist->dec_ctx->pix_fmt != decoded_frame->format) {
2455  av_log(NULL, AV_LOG_DEBUG, "Frame parameters mismatch context %d,%d,%d != %d,%d,%d\n",
2459  ist->dec_ctx->width,
2460  ist->dec_ctx->height,
2461  ist->dec_ctx->pix_fmt);
2462  }
2463  }
2464 
2465  if (!*got_output || ret < 0)
2466  return ret;
2467 
2468  if(ist->top_field_first>=0)
2470 
2471  ist->frames_decoded++;
2472 
2474  err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
2475  if (err < 0)
2476  goto fail;
2477  }
2479 
2480  best_effort_timestamp= decoded_frame->best_effort_timestamp;
2481  *duration_pts = decoded_frame->pkt_duration;
2482 
2483  if (ist->framerate.num)
2484  best_effort_timestamp = ist->cfr_next_pts++;
2485 
2486  if (eof && best_effort_timestamp == AV_NOPTS_VALUE && ist->nb_dts_buffer > 0) {
2487  best_effort_timestamp = ist->dts_buffer[0];
2488 
2489  for (i = 0; i < ist->nb_dts_buffer - 1; i++)
2490  ist->dts_buffer[i] = ist->dts_buffer[i + 1];
2491  ist->nb_dts_buffer--;
2492  }
2493 
2494  if(best_effort_timestamp != AV_NOPTS_VALUE) {
2495  int64_t ts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
2496 
2497  if (ts != AV_NOPTS_VALUE)
2498  ist->next_pts = ist->pts = ts;
2499  }
2500 
2501  if (debug_ts) {
2502  av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
2503  "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",
2504  ist->st->index, av_ts2str(decoded_frame->pts),
2506  best_effort_timestamp,
2507  av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
2509  ist->st->time_base.num, ist->st->time_base.den);
2510  }
2511 
2512  if (ist->st->sample_aspect_ratio.num)
2514 
2516 
2517 fail:
2520  return err < 0 ? err : ret;
2521 }
2522 
2524  int *decode_failed)
2525 {
2527  int free_sub = 1;
2528  int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
2529  &subtitle, got_output, pkt);
2530 
2532 
2533  if (ret < 0 || !*got_output) {
2534  *decode_failed = 1;
2535  if (!pkt->size)
2536  sub2video_flush(ist);
2537  return ret;
2538  }
2539 
2540  if (ist->fix_sub_duration) {
2541  int end = 1;
2542  if (ist->prev_sub.got_output) {
2543  end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
2544  1000, AV_TIME_BASE);
2545  if (end < ist->prev_sub.subtitle.end_display_time) {
2546  av_log(ist->dec_ctx, AV_LOG_DEBUG,
2547  "Subtitle duration reduced from %"PRId32" to %d%s\n",
2549  end <= 0 ? ", dropping it" : "");
2550  ist->prev_sub.subtitle.end_display_time = end;
2551  }
2552  }
2553  FFSWAP(int, *got_output, ist->prev_sub.got_output);
2554  FFSWAP(int, ret, ist->prev_sub.ret);
2556  if (end <= 0)
2557  goto out;
2558  }
2559 
2560  if (!*got_output)
2561  return ret;
2562 
2563  if (ist->sub2video.frame) {
2564  sub2video_update(ist, INT64_MIN, &subtitle);
2565  } else if (ist->nb_filters) {
2566  if (!ist->sub2video.sub_queue)
2567  ist->sub2video.sub_queue = av_fifo_alloc(8 * sizeof(AVSubtitle));
2568  if (!ist->sub2video.sub_queue)
2569  exit_program(1);
2570  if (!av_fifo_space(ist->sub2video.sub_queue)) {
2572  if (ret < 0)
2573  exit_program(1);
2574  }
2576  free_sub = 0;
2577  }
2578 
2579  if (!subtitle.num_rects)
2580  goto out;
2581 
2582  ist->frames_decoded++;
2583 
2584  for (i = 0; i < nb_output_streams; i++) {
2586 
2587  if (!ost->pkt && !(ost->pkt = av_packet_alloc()))
2588  exit_program(1);
2589  if (!check_output_constraints(ist, ost) || !ost->encoding_needed
2590  || ost->enc->type != AVMEDIA_TYPE_SUBTITLE)
2591  continue;
2592 
2593  do_subtitle_out(output_files[ost->file_index], ost, &subtitle);
2594  }
2595 
2596 out:
2597  if (free_sub)
2599  return ret;
2600 }
2601 
2603 {
2604  int i, ret;
2605  /* TODO keep pts also in stream time base to avoid converting back */
2606  int64_t pts = av_rescale_q_rnd(ist->pts, AV_TIME_BASE_Q, ist->st->time_base,
2608 
2609  for (i = 0; i < ist->nb_filters; i++) {
2610  ret = ifilter_send_eof(ist->filters[i], pts);
2611  if (ret < 0)
2612  return ret;
2613  }
2614  return 0;
2615 }
2616 
2617 /* pkt = NULL means EOF (needed to flush decoder buffers) */
2618 static int process_input_packet(InputStream *ist, const AVPacket *pkt, int no_eof)
2619 {
2620  int ret = 0, i;
2621  int repeating = 0;
2622  int eof_reached = 0;
2623 
2624  AVPacket *avpkt;
2625 
2626  if (!ist->pkt && !(ist->pkt = av_packet_alloc()))
2627  return AVERROR(ENOMEM);
2628  avpkt = ist->pkt;
2629 
2630  if (!ist->saw_first_ts) {
2631  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;
2632  ist->pts = 0;
2633  if (pkt && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
2634  ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
2635  ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
2636  }
2637  ist->saw_first_ts = 1;
2638  }
2639 
2640  if (ist->next_dts == AV_NOPTS_VALUE)
2641  ist->next_dts = ist->dts;
2642  if (ist->next_pts == AV_NOPTS_VALUE)
2643  ist->next_pts = ist->pts;
2644 
2645  if (pkt) {
2646  av_packet_unref(avpkt);
2647  ret = av_packet_ref(avpkt, pkt);
2648  if (ret < 0)
2649  return ret;
2650  }
2651 
2652  if (pkt && pkt->dts != AV_NOPTS_VALUE) {
2653  ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
2654  if (ist->dec_ctx->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
2655  ist->next_pts = ist->pts = ist->dts;
2656  }
2657 
2658  // while we have more to decode or while the decoder did output something on EOF
2659  while (ist->decoding_needed) {
2660  int64_t duration_dts = 0;
2661  int64_t duration_pts = 0;
2662  int got_output = 0;
2663  int decode_failed = 0;
2664 
2665  ist->pts = ist->next_pts;
2666  ist->dts = ist->next_dts;
2667 
2668  switch (ist->dec_ctx->codec_type) {
2669  case AVMEDIA_TYPE_AUDIO:
2670  ret = decode_audio (ist, repeating ? NULL : avpkt, &got_output,
2671  &decode_failed);
2672  av_packet_unref(avpkt);
2673  break;
2674  case AVMEDIA_TYPE_VIDEO:
2675  ret = decode_video (ist, repeating ? NULL : avpkt, &got_output, &duration_pts, !pkt,
2676  &decode_failed);
2677  if (!repeating || !pkt || got_output) {
2678  if (pkt && pkt->duration) {
2679  duration_dts = av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
2680  } else if(ist->dec_ctx->framerate.num != 0 && ist->dec_ctx->framerate.den != 0) {
2682  duration_dts = ((int64_t)AV_TIME_BASE *
2683  ist->dec_ctx->framerate.den * ticks) /
2685  }
2686 
2687  if(ist->dts != AV_NOPTS_VALUE && duration_dts) {
2688  ist->next_dts += duration_dts;
2689  }else
2690  ist->next_dts = AV_NOPTS_VALUE;
2691  }
2692 
2693  if (got_output) {
2694  if (duration_pts > 0) {
2695  ist->next_pts += av_rescale_q(duration_pts, ist->st->time_base, AV_TIME_BASE_Q);
2696  } else {
2697  ist->next_pts += duration_dts;
2698  }
2699  }
2700  av_packet_unref(avpkt);
2701  break;
2702  case AVMEDIA_TYPE_SUBTITLE:
2703  if (repeating)
2704  break;
2705  ret = transcode_subtitles(ist, avpkt, &got_output, &decode_failed);
2706  if (!pkt && ret >= 0)
2707  ret = AVERROR_EOF;
2708  av_packet_unref(avpkt);
2709  break;
2710  default:
2711  return -1;
2712  }
2713 
2714  if (ret == AVERROR_EOF) {
2715  eof_reached = 1;
2716  break;
2717  }
2718 
2719  if (ret < 0) {
2720  if (decode_failed) {
2721  av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
2722  ist->file_index, ist->st->index, av_err2str(ret));
2723  } else {
2724  av_log(NULL, AV_LOG_FATAL, "Error while processing the decoded "
2725  "data for stream #%d:%d\n", ist->file_index, ist->st->index);
2726  }
2727  if (!decode_failed || exit_on_error)
2728  exit_program(1);
2729  break;
2730  }
2731 
2732  if (got_output)
2733  ist->got_output = 1;
2734 
2735  if (!got_output)
2736  break;
2737 
2738  // During draining, we might get multiple output frames in this loop.
2739  // ffmpeg.c does not drain the filter chain on configuration changes,
2740  // which means if we send multiple frames at once to the filters, and
2741  // one of those frames changes configuration, the buffered frames will
2742  // be lost. This can upset certain FATE tests.
2743  // Decode only 1 frame per call on EOF to appease these FATE tests.
2744  // The ideal solution would be to rewrite decoding to use the new
2745  // decoding API in a better way.
2746  if (!pkt)
2747  break;
2748 
2749  repeating = 1;
2750  }
2751 
2752  /* after flushing, send an EOF on all the filter inputs attached to the stream */
2753  /* except when looping we need to flush but not to send an EOF */
2754  if (!pkt && ist->decoding_needed && eof_reached && !no_eof) {
2755  int ret = send_filter_eof(ist);
2756  if (ret < 0) {
2757  av_log(NULL, AV_LOG_FATAL, "Error marking filters as finished\n");
2758  exit_program(1);
2759  }
2760  }
2761 
2762  /* handle stream copy */
2763  if (!ist->decoding_needed && pkt) {
2764  ist->dts = ist->next_dts;
2765  switch (ist->dec_ctx->codec_type) {
2766  case AVMEDIA_TYPE_AUDIO:
2767  av_assert1(pkt->duration >= 0);
2768  if (ist->dec_ctx->sample_rate) {
2769  ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
2770  ist->dec_ctx->sample_rate;
2771  } else {
2773  }
2774  break;
2775  case AVMEDIA_TYPE_VIDEO:
2776  if (ist->framerate.num) {
2777  // TODO: Remove work-around for c99-to-c89 issue 7
2778  AVRational time_base_q = AV_TIME_BASE_Q;
2779  int64_t next_dts = av_rescale_q(ist->next_dts, time_base_q, av_inv_q(ist->framerate));
2780  ist->next_dts = av_rescale_q(next_dts + 1, av_inv_q(ist->framerate), time_base_q);
2781  } else if (pkt->duration) {
2783  } else if(ist->dec_ctx->framerate.num != 0) {
2784  int ticks= av_stream_get_parser(ist->st) ? av_stream_get_parser(ist->st)->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
2785  ist->next_dts += ((int64_t)AV_TIME_BASE *
2786  ist->dec_ctx->framerate.den * ticks) /
2788  }
2789  break;
2790  }
2791  ist->pts = ist->dts;
2792  ist->next_pts = ist->next_dts;
2793  }
2794  for (i = 0; i < nb_output_streams; i++) {
2796 
2797  if (!ost->pkt && !(ost->pkt = av_packet_alloc()))
2798  exit_program(1);
2799  if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2800  continue;
2801 
2802  do_streamcopy(ist, ost, pkt);
2803  }
2804 
2805  return !eof_reached;
2806 }
2807 
2808 static void print_sdp(void)
2809 {
2810  char sdp[16384];
2811  int i;
2812  int j;
2813  AVIOContext *sdp_pb;
2814  AVFormatContext **avc;
2815 
2816  for (i = 0; i < nb_output_files; i++) {
2817  if (!output_files[i]->header_written)
2818  return;
2819  }
2820 
2821  avc = av_malloc_array(nb_output_files, sizeof(*avc));
2822  if (!avc)
2823  exit_program(1);
2824  for (i = 0, j = 0; i < nb_output_files; i++) {
2825  if (!strcmp(output_files[i]->ctx->oformat->name, "rtp")) {
2826  avc[j] = output_files[i]->ctx;
2827  j++;
2828  }
2829  }
2830 
2831  if (!j)
2832  goto fail;
2833 
2834  av_sdp_create(avc, j, sdp, sizeof(sdp));
2835 
2836  if (!sdp_filename) {
2837  printf("SDP:\n%s\n", sdp);
2838  fflush(stdout);
2839  } else {
2840  if (avio_open2(&sdp_pb, sdp_filename, AVIO_FLAG_WRITE, &int_cb, NULL) < 0) {
2841  av_log(NULL, AV_LOG_ERROR, "Failed to open sdp file '%s'\n", sdp_filename);
2842  } else {
2843  avio_print(sdp_pb, sdp);
2844  avio_closep(&sdp_pb);
2846  }
2847  }
2848 
2849 fail:
2850  av_freep(&avc);
2851 }
2852 
2854 {
2855  InputStream *ist = s->opaque;
2856  const enum AVPixelFormat *p;
2857  int ret;
2858 
2859  for (p = pix_fmts; *p != AV_PIX_FMT_NONE; p++) {
2861  const AVCodecHWConfig *config = NULL;
2862  int i;
2863 
2864  if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
2865  break;
2866 
2867  if (ist->hwaccel_id == HWACCEL_GENERIC ||
2868  ist->hwaccel_id == HWACCEL_AUTO) {
2869  for (i = 0;; i++) {
2870  config = avcodec_get_hw_config(s->codec, i);
2871  if (!config)
2872  break;
2873  if (!(config->methods &
2875  continue;
2876  if (config->pix_fmt == *p)
2877  break;
2878  }
2879  }
2880  if (config) {
2881  if (config->device_type != ist->hwaccel_device_type) {
2882  // Different hwaccel offered, ignore.
2883  continue;
2884  }
2885 
2887  if (ret < 0) {
2888  if (ist->hwaccel_id == HWACCEL_GENERIC) {
2890  "%s hwaccel requested for input stream #%d:%d, "
2891  "but cannot be initialized.\n",
2893  ist->file_index, ist->st->index);
2894  return AV_PIX_FMT_NONE;
2895  }
2896  continue;
2897  }
2898  } else {
2899  const HWAccel *hwaccel = NULL;
2900  int i;
2901  for (i = 0; hwaccels[i].name; i++) {
2902  if (hwaccels[i].pix_fmt == *p) {
2903  hwaccel = &hwaccels[i];
2904  break;
2905  }
2906  }
2907  if (!hwaccel) {
2908  // No hwaccel supporting this pixfmt.
2909  continue;
2910  }
2911  if (hwaccel->id != ist->hwaccel_id) {
2912  // Does not match requested hwaccel.
2913  continue;
2914  }
2915 
2916  ret = hwaccel->init(s);
2917  if (ret < 0) {
2919  "%s hwaccel requested for input stream #%d:%d, "
2920  "but cannot be initialized.\n", hwaccel->name,
2921  ist->file_index, ist->st->index);
2922  return AV_PIX_FMT_NONE;
2923  }
2924  }
2925 
2926  if (ist->hw_frames_ctx) {
2927  s->hw_frames_ctx = av_buffer_ref(ist->hw_frames_ctx);
2928  if (!s->hw_frames_ctx)
2929  return AV_PIX_FMT_NONE;
2930  }
2931 
2932  ist->hwaccel_pix_fmt = *p;
2933  break;
2934  }
2935 
2936  return *p;
2937 }
2938 
2940 {
2941  InputStream *ist = s->opaque;
2942 
2943  if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
2944  return ist->hwaccel_get_buffer(s, frame, flags);
2945 
2947 }
2948 
2949 static int init_input_stream(int ist_index, char *error, int error_len)
2950 {
2951  int ret;
2952  InputStream *ist = input_streams[ist_index];
2953 
2954  if (ist->decoding_needed) {
2955  const AVCodec *codec = ist->dec;
2956  if (!codec) {
2957  snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
2958  avcodec_get_name(ist->dec_ctx->codec_id), ist->file_index, ist->st->index);
2959  return AVERROR(EINVAL);
2960  }
2961 
2962  ist->dec_ctx->opaque = ist;
2963  ist->dec_ctx->get_format = get_format;
2964  ist->dec_ctx->get_buffer2 = get_buffer;
2965 #if LIBAVCODEC_VERSION_MAJOR < 60
2966  ist->dec_ctx->thread_safe_callbacks = 1;
2967 #endif
2968 
2969  if (ist->dec_ctx->codec_id == AV_CODEC_ID_DVB_SUBTITLE &&
2970  (ist->decoding_needed & DECODING_FOR_OST)) {
2971  av_dict_set(&ist->decoder_opts, "compute_edt", "1", AV_DICT_DONT_OVERWRITE);
2973  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");
2974  }
2975 
2976  av_dict_set(&ist->decoder_opts, "sub_text_format", "ass", AV_DICT_DONT_OVERWRITE);
2977 
2978  /* Useful for subtitles retiming by lavf (FIXME), skipping samples in
2979  * audio, and video decoders such as cuvid or mediacodec */
2980  ist->dec_ctx->pkt_timebase = ist->st->time_base;
2981 
2982  if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
2983  av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
2984  /* Attached pics are sparse, therefore we would not want to delay their decoding till EOF. */
2986  av_dict_set(&ist->decoder_opts, "threads", "1", 0);
2987 
2989  if (ret < 0) {
2990  snprintf(error, error_len, "Device setup failed for "
2991  "decoder on input stream #%d:%d : %s",
2992  ist->file_index, ist->st->index, av_err2str(ret));
2993  return ret;
2994  }
2995 
2996  if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
2997  if (ret == AVERROR_EXPERIMENTAL)
2998  abort_codec_experimental(codec, 0);
2999 
3000  snprintf(error, error_len,
3001  "Error while opening decoder for input stream "
3002  "#%d:%d : %s",
3003  ist->file_index, ist->st->index, av_err2str(ret));
3004  return ret;
3005  }
3007  }
3008 
3009  ist->next_pts = AV_NOPTS_VALUE;
3010  ist->next_dts = AV_NOPTS_VALUE;
3011 
3012  return 0;
3013 }
3014 
3016 {
3017  if (ost->source_index >= 0)
3018  return input_streams[ost->source_index];
3019  return NULL;
3020 }
3021 
3022 static int compare_int64(const void *a, const void *b)
3023 {
3024  return FFDIFFSIGN(*(const int64_t *)a, *(const int64_t *)b);
3025 }
3026 
3027 /* open the muxer when all the streams are initialized */
3029 {
3030  int ret, i;
3031 
3032  for (i = 0; i < of->ctx->nb_streams; i++) {
3034  if (!ost->initialized)
3035  return 0;
3036  }
3037 
3038  of->ctx->interrupt_callback = int_cb;
3039 
3040  ret = avformat_write_header(of->ctx, &of->opts);
3041  if (ret < 0) {
3043  "Could not write header for output file #%d "
3044  "(incorrect codec parameters ?): %s\n",
3046  return ret;
3047  }
3048  //assert_avoptions(of->opts);
3049  of->header_written = 1;
3050 
3051  av_dump_format(of->ctx, file_index, of->ctx->url, 1);
3052  nb_output_dumped++;
3053 
3054  if (sdp_filename || want_sdp)
3055  print_sdp();
3056 
3057  /* flush the muxing queues */
3058  for (i = 0; i < of->ctx->nb_streams; i++) {
3060 
3061  /* try to improve muxing time_base (only possible if nothing has been written yet) */
3062  if (!av_fifo_size(ost->muxing_queue))
3063  ost->mux_timebase = ost->st->time_base;
3064 
3065  while (av_fifo_size(ost->muxing_queue)) {
3066  AVPacket *pkt;
3067  av_fifo_generic_read(ost->muxing_queue, &pkt, sizeof(pkt), NULL);
3068  ost->muxing_queue_data_size -= pkt->size;
3069  write_packet(of, pkt, ost, 1);
3070  av_packet_free(&pkt);
3071  }
3072  }
3073 
3074  return 0;
3075 }
3076 
3078 {
3079  AVBSFContext *ctx = ost->bsf_ctx;
3080  int ret;
3081 
3082  if (!ctx)
3083  return 0;
3084 
3085  ret = avcodec_parameters_copy(ctx->par_in, ost->st->codecpar);
3086  if (ret < 0)
3087  return ret;
3088 
3089  ctx->time_base_in = ost->st->time_base;
3090 
3091  ret = av_bsf_init(ctx);
3092  if (ret < 0) {
3093  av_log(NULL, AV_LOG_ERROR, "Error initializing bitstream filter: %s\n",
3094  ctx->filter->name);
3095  return ret;
3096  }
3097 
3098  ret = avcodec_parameters_copy(ost->st->codecpar, ctx->par_out);
3099  if (ret < 0)
3100  return ret;
3101  ost->st->time_base = ctx->time_base_out;
3102 
3103  return 0;
3104 }
3105 
3107 {
3108  OutputFile *of = output_files[ost->file_index];
3110  AVCodecParameters *par_dst = ost->st->codecpar;
3111  AVCodecParameters *par_src = ost->ref_par;
3112  AVRational sar;
3113  int i, ret;
3114  uint32_t codec_tag = par_dst->codec_tag;
3115 
3116  av_assert0(ist && !ost->filter);
3117 
3118  ret = avcodec_parameters_to_context(ost->enc_ctx, ist->st->codecpar);
3119  if (ret >= 0)
3120  ret = av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts);
3121  if (ret < 0) {
3123  "Error setting up codec context options.\n");
3124  return ret;
3125  }
3126 
3127  ret = avcodec_parameters_from_context(par_src, ost->enc_ctx);
3128  if (ret < 0) {
3130  "Error getting reference codec parameters.\n");
3131  return ret;
3132  }
3133 
3134  if (!codec_tag) {
3135  unsigned int codec_tag_tmp;
3136  if (!of->ctx->oformat->codec_tag ||
3137  av_codec_get_id (of->ctx->oformat->codec_tag, par_src->codec_tag) == par_src->codec_id ||
3138  !av_codec_get_tag2(of->ctx->oformat->codec_tag, par_src->codec_id, &codec_tag_tmp))
3139  codec_tag = par_src->codec_tag;
3140  }
3141 
3142  ret = avcodec_parameters_copy(par_dst, par_src);
3143  if (ret < 0)
3144  return ret;
3145 
3146  par_dst->codec_tag = codec_tag;
3147 
3148  if (!ost->frame_rate.num)
3149  ost->frame_rate = ist->framerate;
3150  ost->st->avg_frame_rate = ost->frame_rate;
3151 
3153  if (ret < 0)
3154  return ret;
3155 
3156  // copy timebase while removing common factors
3157  if (ost->st->time_base.num <= 0 || ost->st->time_base.den <= 0)
3159 
3160  // copy estimated duration as a hint to the muxer
3161  if (ost->st->duration <= 0 && ist->st->duration > 0)
3162  ost->st->duration = av_rescale_q(ist->st->duration, ist->st->time_base, ost->st->time_base);
3163 
3164  // copy disposition
3165  ost->st->disposition = ist->st->disposition;
3166 
3167  if (ist->st->nb_side_data) {
3168  for (i = 0; i < ist->st->nb_side_data; i++) {
3169  const AVPacketSideData *sd_src = &ist->st->side_data[i];
3170  uint8_t *dst_data;
3171 
3172  dst_data = av_stream_new_side_data(ost->st, sd_src->type, sd_src->size);
3173  if (!dst_data)
3174  return AVERROR(ENOMEM);
3175  memcpy(dst_data, sd_src->data, sd_src->size);
3176  }
3177  }
3178 
3179  if (ost->rotate_overridden) {
3181  sizeof(int32_t) * 9);
3182  if (sd)
3183  av_display_rotation_set((int32_t *)sd, -ost->rotate_override_value);
3184  }
3185 
3186  switch (par_dst->codec_type) {
3187  case AVMEDIA_TYPE_AUDIO:
3188  if (audio_volume != 256) {
3189  av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
3190  exit_program(1);
3191  }
3192  if((par_dst->block_align == 1 || par_dst->block_align == 1152 || par_dst->block_align == 576) && par_dst->codec_id == AV_CODEC_ID_MP3)
3193  par_dst->block_align= 0;
3194  if(par_dst->codec_id == AV_CODEC_ID_AC3)
3195  par_dst->block_align= 0;
3196  break;
3197  case AVMEDIA_TYPE_VIDEO:
3198  if (ost->frame_aspect_ratio.num) { // overridden by the -aspect cli option
3199  sar =
3200  av_mul_q(ost->frame_aspect_ratio,
3201  (AVRational){ par_dst->height, par_dst->width });
3202  av_log(NULL, AV_LOG_WARNING, "Overriding aspect ratio "
3203  "with stream copy may produce invalid files\n");
3204  }
3205  else if (ist->st->sample_aspect_ratio.num)
3206  sar = ist->st->sample_aspect_ratio;
3207  else
3208  sar = par_src->sample_aspect_ratio;
3209  ost->st->sample_aspect_ratio = par_dst->sample_aspect_ratio = sar;
3210  ost->st->avg_frame_rate = ist->st->avg_frame_rate;
3211  ost->st->r_frame_rate = ist->st->r_frame_rate;
3212  break;
3213  }
3214 
3215  ost->mux_timebase = ist->st->time_base;
3216 
3217  return 0;
3218 }
3219 
3221 {
3222  AVDictionaryEntry *e;
3223 
3224  uint8_t *encoder_string;
3225  int encoder_string_len;
3226  int format_flags = 0;
3227  int codec_flags = ost->enc_ctx->flags;
3228 
3229  if (av_dict_get(ost->st->metadata, "encoder", NULL, 0))
3230  return;
3231 
3232  e = av_dict_get(of->opts, "fflags", NULL, 0);
3233  if (e) {
3234  const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
3235  if (!o)
3236  return;
3237  av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
3238  }
3239  e = av_dict_get(ost->encoder_opts, "flags", NULL, 0);
3240  if (e) {
3241  const AVOption *o = av_opt_find(ost->enc_ctx, "flags", NULL, 0, 0);
3242  if (!o)
3243  return;
3244  av_opt_eval_flags(ost->enc_ctx, o, e->value, &codec_flags);
3245  }
3246 
3247  encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
3248  encoder_string = av_mallocz(encoder_string_len);
3249  if (!encoder_string)
3250  exit_program(1);
3251 
3252  if (!(format_flags & AVFMT_FLAG_BITEXACT) && !(codec_flags & AV_CODEC_FLAG_BITEXACT))
3253  av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
3254  else
3255  av_strlcpy(encoder_string, "Lavc ", encoder_string_len);
3256  av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
3257  av_dict_set(&ost->st->metadata, "encoder", encoder_string,
3259 }
3260 
3262  AVCodecContext *avctx)
3263 {
3264  char *p;
3265  int n = 1, i, size, index = 0;
3266  int64_t t, *pts;
3267 
3268  for (p = kf; *p; p++)
3269  if (*p == ',')
3270  n++;
3271  size = n;
3272  pts = av_malloc_array(size, sizeof(*pts));
3273  if (!pts) {
3274  av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3275  exit_program(1);
3276  }
3277 
3278  p = kf;
3279  for (i = 0; i < n; i++) {
3280  char *next = strchr(p, ',');
3281 
3282  if (next)
3283  *next++ = 0;
3284 
3285  if (!memcmp(p, "chapters", 8)) {
3286 
3287  AVFormatContext *avf = output_files[ost->file_index]->ctx;
3288  int j;
3289 
3290  if (avf->nb_chapters > INT_MAX - size ||
3291  !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
3292  sizeof(*pts)))) {
3294  "Could not allocate forced key frames array.\n");
3295  exit_program(1);
3296  }
3297  t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
3298  t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3299 
3300  for (j = 0; j < avf->nb_chapters; j++) {
3301  AVChapter *c = avf->chapters[j];
3302  av_assert1(index < size);
3303  pts[index++] = av_rescale_q(c->start, c->time_base,
3304  avctx->time_base) + t;
3305  }
3306 
3307  } else {
3308 
3309  t = parse_time_or_die("force_key_frames", p, 1);
3310  av_assert1(index < size);
3311  pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3312 
3313  }
3314 
3315  p = next;
3316  }
3317 
3318  av_assert0(index == size);
3319  qsort(pts, size, sizeof(*pts), compare_int64);
3320  ost->forced_kf_count = size;
3321  ost->forced_kf_pts = pts;
3322 }
3323 
3324 static void init_encoder_time_base(OutputStream *ost, AVRational default_time_base)
3325 {
3327  AVCodecContext *enc_ctx = ost->enc_ctx;
3328  AVFormatContext *oc;
3329 
3330  if (ost->enc_timebase.num > 0) {
3331  enc_ctx->time_base = ost->enc_timebase;
3332  return;
3333  }
3334 
3335  if (ost->enc_timebase.num < 0) {
3336  if (ist) {
3337  enc_ctx->time_base = ist->st->time_base;
3338  return;
3339  }
3340 
3341  oc = output_files[ost->file_index]->ctx;
3342  av_log(oc, AV_LOG_WARNING, "Input stream data not available, using default time base\n");
3343  }
3344 
3345  enc_ctx->time_base = default_time_base;
3346 }
3347 
3349 {
3351  AVCodecContext *enc_ctx = ost->enc_ctx;
3353  AVFormatContext *oc = output_files[ost->file_index]->ctx;
3354  int j, ret;
3355 
3356  set_encoder_id(output_files[ost->file_index], ost);
3357 
3358  // Muxers use AV_PKT_DATA_DISPLAYMATRIX to signal rotation. On the other
3359  // hand, the legacy API makes demuxers set "rotate" metadata entries,
3360  // which have to be filtered out to prevent leaking them to output files.
3361  av_dict_set(&ost->st->metadata, "rotate", NULL, 0);
3362 
3363  if (ist) {
3364  ost->st->disposition = ist->st->disposition;
3365 
3366  dec_ctx = ist->dec_ctx;
3367 
3369  } else {
3370  for (j = 0; j < oc->nb_streams; j++) {
3371  AVStream *st = oc->streams[j];
3372  if (st != ost->st && st->codecpar->codec_type == ost->st->codecpar->codec_type)
3373  break;
3374  }
3375  if (j == oc->nb_streams)
3376  if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO ||
3379  }
3380 
3381  if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
3382  if (!ost->frame_rate.num)
3383  ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
3384  if (ist && !ost->frame_rate.num)
3385  ost->frame_rate = ist->framerate;
3386  if (ist && !ost->frame_rate.num)
3387  ost->frame_rate = ist->st->r_frame_rate;
3388  if (ist && !ost->frame_rate.num && !ost->max_frame_rate.num) {
3389  ost->frame_rate = (AVRational){25, 1};
3391  "No information "
3392  "about the input framerate is available. Falling "
3393  "back to a default value of 25fps for output stream #%d:%d. Use the -r option "
3394  "if you want a different framerate.\n",
3395  ost->file_index, ost->index);
3396  }
3397 
3398  if (ost->max_frame_rate.num &&
3399  (av_q2d(ost->frame_rate) > av_q2d(ost->max_frame_rate) ||
3400  !ost->frame_rate.den))
3401  ost->frame_rate = ost->max_frame_rate;
3402 
3403  if (ost->enc->supported_framerates && !ost->force_fps) {
3404  int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
3405  ost->frame_rate = ost->enc->supported_framerates[idx];
3406  }
3407  // reduce frame rate for mpeg4 to be within the spec limits
3408  if (enc_ctx->codec_id == AV_CODEC_ID_MPEG4) {
3409  av_reduce(&ost->frame_rate.num, &ost->frame_rate.den,
3410  ost->frame_rate.num, ost->frame_rate.den, 65535);
3411  }
3412  }
3413 
3414  switch (enc_ctx->codec_type) {
3415  case AVMEDIA_TYPE_AUDIO:
3416  enc_ctx->sample_fmt = av_buffersink_get_format(ost->filter->filter);
3417  if (dec_ctx)
3419  av_get_bytes_per_sample(enc_ctx->sample_fmt) << 3);
3420  enc_ctx->sample_rate = av_buffersink_get_sample_rate(ost->filter->filter);
3421  enc_ctx->channel_layout = av_buffersink_get_channel_layout(ost->filter->filter);
3422  enc_ctx->channels = av_buffersink_get_channels(ost->filter->filter);
3423 
3425  break;
3426 
3427  case AVMEDIA_TYPE_VIDEO:
3428  init_encoder_time_base(ost, av_inv_q(ost->frame_rate));
3429 
3430  if (!(enc_ctx->time_base.num && enc_ctx->time_base.den))
3431  enc_ctx->time_base = av_buffersink_get_time_base(ost->filter->filter);
3432  if ( av_q2d(enc_ctx->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
3434  av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
3435  "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
3436  }
3437 
3438  enc_ctx->width = av_buffersink_get_w(ost->filter->filter);
3439  enc_ctx->height = av_buffersink_get_h(ost->filter->filter);
3440  enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
3441  ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option
3442  av_mul_q(ost->frame_aspect_ratio, (AVRational){ enc_ctx->height, enc_ctx->width }) :
3443  av_buffersink_get_sample_aspect_ratio(ost->filter->filter);
3444 
3445  enc_ctx->pix_fmt = av_buffersink_get_format(ost->filter->filter);
3446  if (dec_ctx)
3448  av_pix_fmt_desc_get(enc_ctx->pix_fmt)->comp[0].depth);
3449 
3450  if (frame) {
3451  enc_ctx->color_range = frame->color_range;
3453  enc_ctx->color_trc = frame->color_trc;
3454  enc_ctx->colorspace = frame->colorspace;
3456  }
3457 
3458  enc_ctx->framerate = ost->frame_rate;
3459 
3460  ost->st->avg_frame_rate = ost->frame_rate;
3461 
3462  if (!dec_ctx ||
3463  enc_ctx->width != dec_ctx->width ||
3464  enc_ctx->height != dec_ctx->height ||
3465  enc_ctx->pix_fmt != dec_ctx->pix_fmt) {
3467  }
3468 
3469  // Field order: autodetection
3470  if (frame) {
3472  ost->top_field_first >= 0)
3473  frame->top_field_first = !!ost->top_field_first;
3474 
3475  if (frame->interlaced_frame) {
3476  if (enc_ctx->codec->id == AV_CODEC_ID_MJPEG)
3478  else
3480  } else
3481  enc_ctx->field_order = AV_FIELD_PROGRESSIVE;
3482  }
3483 
3484  // Field order: override
3485  if (ost->top_field_first == 0) {
3486  enc_ctx->field_order = AV_FIELD_BB;
3487  } else if (ost->top_field_first == 1) {
3488  enc_ctx->field_order = AV_FIELD_TT;
3489  }
3490 
3491  if (ost->forced_keyframes) {
3492  if (!strncmp(ost->forced_keyframes, "expr:", 5)) {
3493  ret = av_expr_parse(&ost->forced_keyframes_pexpr, ost->forced_keyframes+5,
3495  if (ret < 0) {
3497  "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5);
3498  return ret;
3499  }
3500  ost->forced_keyframes_expr_const_values[FKF_N] = 0;
3501  ost->forced_keyframes_expr_const_values[FKF_N_FORCED] = 0;
3502  ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] = NAN;
3503  ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] = NAN;
3504 
3505  // Don't parse the 'forced_keyframes' in case of 'keep-source-keyframes',
3506  // parse it only for static kf timings
3507  } else if(strncmp(ost->forced_keyframes, "source", 6)) {
3508  parse_forced_key_frames(ost->forced_keyframes, ost, ost->enc_ctx);
3509  }
3510  }
3511  break;
3512  case AVMEDIA_TYPE_SUBTITLE:
3513  enc_ctx->time_base = AV_TIME_BASE_Q;
3514  if (!enc_ctx->width) {
3515  enc_ctx->width = input_streams[ost->source_index]->st->codecpar->width;
3516  enc_ctx->height = input_streams[ost->source_index]->st->codecpar->height;
3517  }
3518  break;
3519  case AVMEDIA_TYPE_DATA:
3520  break;
3521  default:
3522  abort();
3523  break;
3524  }
3525 
3526  ost->mux_timebase = enc_ctx->time_base;
3527 
3528  return 0;
3529 }
3530 
3532  char *error, int error_len)
3533 {
3534  int ret = 0;
3535 
3536  if (ost->encoding_needed) {
3537  const AVCodec *codec = ost->enc;
3538  AVCodecContext *dec = NULL;
3539  InputStream *ist;
3540 
3542  if (ret < 0)
3543  return ret;
3544 
3545  if ((ist = get_input_stream(ost)))
3546  dec = ist->dec_ctx;
3547  if (dec && dec->subtitle_header) {
3548  /* ASS code assumes this buffer is null terminated so add extra byte. */
3549  ost->enc_ctx->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
3550  if (!ost->enc_ctx->subtitle_header)
3551  return AVERROR(ENOMEM);
3552  memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
3553  ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
3554  }
3555  if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
3556  av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
3557  if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
3558  !codec->defaults &&
3559  !av_dict_get(ost->encoder_opts, "b", NULL, 0) &&
3560  !av_dict_get(ost->encoder_opts, "ab", NULL, 0))
3561  av_dict_set(&ost->encoder_opts, "b", "128000", 0);
3562 
3564  if (ret < 0) {
3565  snprintf(error, error_len, "Device setup failed for "
3566  "encoder on output stream #%d:%d : %s",
3567  ost->file_index, ost->index, av_err2str(ret));
3568  return ret;
3569  }
3570 
3571  if (ist && ist->dec->type == AVMEDIA_TYPE_SUBTITLE && ost->enc->type == AVMEDIA_TYPE_SUBTITLE) {
3572  int input_props = 0, output_props = 0;
3573  AVCodecDescriptor const *input_descriptor =
3574  avcodec_descriptor_get(dec->codec_id);
3575  AVCodecDescriptor const *output_descriptor =
3576  avcodec_descriptor_get(ost->enc_ctx->codec_id);
3577  if (input_descriptor)
3578  input_props = input_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
3579  if (output_descriptor)
3580  output_props = output_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
3581  if (input_props && output_props && input_props != output_props) {
3582  snprintf(error, error_len,
3583  "Subtitle encoding currently only possible from text to text "
3584  "or bitmap to bitmap");
3585  return AVERROR_INVALIDDATA;
3586  }
3587  }
3588 
3589  if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
3590  if (ret == AVERROR_EXPERIMENTAL)
3591  abort_codec_experimental(codec, 1);
3592  snprintf(error, error_len,
3593  "Error while opening encoder for output stream #%d:%d - "
3594  "maybe incorrect parameters such as bit_rate, rate, width or height",
3595  ost->file_index, ost->index);
3596  return ret;
3597  }
3598  if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
3599  !(ost->enc->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE))
3600  av_buffersink_set_frame_size(ost->filter->filter,
3601  ost->enc_ctx->frame_size);
3602  assert_avoptions(ost->encoder_opts);
3603  if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000 &&
3604  ost->enc_ctx->codec_id != AV_CODEC_ID_CODEC2 /* don't complain about 700 bit/s modes */)
3605  av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
3606  " It takes bits/s as argument, not kbits/s\n");
3607 
3609  if (ret < 0) {
3611  "Error initializing the output stream codec context.\n");
3612  exit_program(1);
3613  }
3614 
3615  if (ost->enc_ctx->nb_coded_side_data) {
3616  int i;
3617 
3618  for (i = 0; i < ost->enc_ctx->nb_coded_side_data; i++) {
3619  const AVPacketSideData *sd_src = &ost->enc_ctx->coded_side_data[i];
3620  uint8_t *dst_data;
3621 
3622  dst_data = av_stream_new_side_data(ost->st, sd_src->type, sd_src->size);
3623  if (!dst_data)
3624  return AVERROR(ENOMEM);
3625  memcpy(dst_data, sd_src->data, sd_src->size);
3626  }
3627  }
3628 
3629  /*
3630  * Add global input side data. For now this is naive, and copies it
3631  * from the input stream's global side data. All side data should
3632  * really be funneled over AVFrame and libavfilter, then added back to
3633  * packet side data, and then potentially using the first packet for
3634  * global side data.
3635  */
3636  if (ist) {
3637  int i;
3638  for (i = 0; i < ist->st->nb_side_data; i++) {
3639  AVPacketSideData *sd = &ist->st->side_data[i];
3640  if (sd->type != AV_PKT_DATA_CPB_PROPERTIES) {
3641  uint8_t *dst = av_stream_new_side_data(ost->st, sd->type, sd->size);
3642  if (!dst)
3643  return AVERROR(ENOMEM);
3644  memcpy(dst, sd->data, sd->size);
3645  if (ist->autorotate && sd->type == AV_PKT_DATA_DISPLAYMATRIX)
3646  av_display_rotation_set((uint32_t *)dst, 0);
3647  }
3648  }
3649  }
3650 
3651  // copy timebase while removing common factors
3652  if (ost->st->time_base.num <= 0 || ost->st->time_base.den <= 0)
3653  ost->st->time_base = av_add_q(ost->enc_ctx->time_base, (AVRational){0, 1});
3654 
3655  // copy estimated duration as a hint to the muxer
3656  if (ost->st->duration <= 0 && ist && ist->st->duration > 0)
3657  ost->st->duration = av_rescale_q(ist->st->duration, ist->st->time_base, ost->st->time_base);
3658  } else if (ost->stream_copy) {
3660  if (ret < 0)
3661  return ret;
3662  }
3663 
3664  // parse user provided disposition, and update stream values
3665  if (ost->disposition) {
3666  static const AVOption opts[] = {
3667  { "disposition" , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, INT64_MAX, .unit = "flags" },
3668  { "default" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DEFAULT }, .unit = "flags" },
3669  { "dub" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DUB }, .unit = "flags" },
3670  { "original" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_ORIGINAL }, .unit = "flags" },
3671  { "comment" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_COMMENT }, .unit = "flags" },
3672  { "lyrics" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_LYRICS }, .unit = "flags" },
3673  { "karaoke" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_KARAOKE }, .unit = "flags" },
3674  { "forced" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_FORCED }, .unit = "flags" },
3675  { "hearing_impaired" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_HEARING_IMPAIRED }, .unit = "flags" },
3676  { "visual_impaired" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_VISUAL_IMPAIRED }, .unit = "flags" },
3677  { "clean_effects" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_CLEAN_EFFECTS }, .unit = "flags" },
3678  { "attached_pic" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_ATTACHED_PIC }, .unit = "flags" },
3679  { "captions" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_CAPTIONS }, .unit = "flags" },
3680  { "descriptions" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DESCRIPTIONS }, .unit = "flags" },
3681  { "dependent" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DEPENDENT }, .unit = "flags" },
3682  { "metadata" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_METADATA }, .unit = "flags" },
3683  { NULL },
3684  };
3685  static const AVClass class = {
3686  .class_name = "",
3687  .item_name = av_default_item_name,
3688  .option = opts,
3689  .version = LIBAVUTIL_VERSION_INT,
3690  };
3691  const AVClass *pclass = &class;
3692 
3693  ret = av_opt_eval_flags(&pclass, &opts[0], ost->disposition, &ost->st->disposition);
3694  if (ret < 0)
3695  return ret;
3696  }
3697 
3698  /* initialize bitstream filters for the output stream
3699  * needs to be done here, because the codec id for streamcopy is not
3700  * known until now */
3701  ret = init_output_bsfs(ost);
3702  if (ret < 0)
3703  return ret;
3704 
3705  ost->initialized = 1;
3706 
3707  ret = check_init_output_file(output_files[ost->file_index], ost->file_index);
3708  if (ret < 0)
3709  return ret;
3710 
3711  return ret;
3712 }
3713 
3714 static void report_new_stream(int input_index, AVPacket *pkt)
3715 {
3716  InputFile *file = input_files[input_index];
3717  AVStream *st = file->ctx->streams[pkt->stream_index];
3718 
3719  if (pkt->stream_index < file->nb_streams_warn)
3720  return;
3721  av_log(file->ctx, AV_LOG_WARNING,
3722  "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
3724  input_index, pkt->stream_index,
3725  pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
3726  file->nb_streams_warn = pkt->stream_index + 1;
3727 }
3728 
3729 static int transcode_init(void)
3730 {
3731  int ret = 0, i, j, k;
3732  AVFormatContext *oc;
3733  OutputStream *ost;
3734  InputStream *ist;
3735  char error[1024] = {0};
3736 
3737  for (i = 0; i < nb_filtergraphs; i++) {
3738  FilterGraph *fg = filtergraphs[i];
3739  for (j = 0; j < fg->nb_outputs; j++) {
3740  OutputFilter *ofilter = fg->outputs[j];
3741  if (!ofilter->ost || ofilter->ost->source_index >= 0)
3742  continue;
3743  if (fg->nb_inputs != 1)
3744  continue;
3745  for (k = nb_input_streams-1; k >= 0 ; k--)
3746  if (fg->inputs[0]->ist == input_streams[k])
3747  break;
3748  ofilter->ost->source_index = k;
3749  }
3750  }
3751 
3752  /* init framerate emulation */
3753  for (i = 0; i < nb_input_files; i++) {
3755  if (ifile->rate_emu)
3756  for (j = 0; j < ifile->nb_streams; j++)
3757  input_streams[j + ifile->ist_index]->start = av_gettime_relative();
3758  }
3759 
3760  /* init input streams */
3761  for (i = 0; i < nb_input_streams; i++)
3762  if ((ret = init_input_stream(i, error, sizeof(error))) < 0) {
3763  for (i = 0; i < nb_output_streams; i++) {
3764  ost = output_streams[i];
3765  avcodec_close(ost->enc_ctx);
3766  }
3767  goto dump_format;
3768  }
3769 
3770  /*
3771  * initialize stream copy and subtitle/data streams.
3772  * Encoded AVFrame based streams will get initialized as follows:
3773  * - when the first AVFrame is received in do_video_out
3774  * - just before the first AVFrame is received in either transcode_step
3775  * or reap_filters due to us requiring the filter chain buffer sink
3776  * to be configured with the correct audio frame size, which is only
3777  * known after the encoder is initialized.
3778  */
3779  for (i = 0; i < nb_output_streams; i++) {
3780  if (!output_streams[i]->stream_copy &&
3781  (output_streams[i]->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
3783  continue;
3784 
3786  if (ret < 0)
3787  goto dump_format;
3788  }
3789 
3790  /* discard unused programs */
3791  for (i = 0; i < nb_input_files; i++) {
3793  for (j = 0; j < ifile->ctx->nb_programs; j++) {
3794  AVProgram *p = ifile->ctx->programs[j];
3795  int discard = AVDISCARD_ALL;
3796 
3797  for (k = 0; k < p->nb_stream_indexes; k++)
3798  if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
3799  discard = AVDISCARD_DEFAULT;
3800  break;
3801  }
3802  p->discard = discard;
3803  }
3804  }
3805 
3806  /* write headers for files with no streams */
3807  for (i = 0; i < nb_output_files; i++) {
3808  oc = output_files[i]->ctx;
3809  if (oc->oformat->flags & AVFMT_NOSTREAMS && oc->nb_streams == 0) {
3811  if (ret < 0)
3812  goto dump_format;
3813  }
3814  }
3815 
3816  dump_format:
3817  /* dump the stream mapping */
3818  av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
3819  for (i = 0; i < nb_input_streams; i++) {
3820  ist = input_streams[i];
3821 
3822  for (j = 0; j < ist->nb_filters; j++) {
3823  if (!filtergraph_is_simple(ist->filters[j]->graph)) {
3824  av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
3825  ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
3826  ist->filters[j]->name);
3827  if (nb_filtergraphs > 1)
3828  av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
3829  av_log(NULL, AV_LOG_INFO, "\n");
3830  }
3831  }
3832  }
3833 
3834  for (i = 0; i < nb_output_streams; i++) {
3835  ost = output_streams[i];
3836 
3837  if (ost->attachment_filename) {
3838  /* an attached file */
3839  av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
3840  ost->attachment_filename, ost->file_index, ost->index);
3841  continue;
3842  }
3843 
3844  if (ost->filter && !filtergraph_is_simple(ost->filter->graph)) {
3845  /* output from a complex graph */
3846  av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
3847  if (nb_filtergraphs > 1)
3848  av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
3849 
3850  av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
3851  ost->index, ost->enc ? ost->enc->name : "?");
3852  continue;
3853  }
3854 
3855  av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
3856  input_streams[ost->source_index]->file_index,
3857  input_streams[ost->source_index]->st->index,
3858  ost->file_index,
3859  ost->index);
3860  if (ost->sync_ist != input_streams[ost->source_index])
3861  av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
3862  ost->sync_ist->file_index,
3863  ost->sync_ist->st->index);
3864  if (ost->stream_copy)
3865  av_log(NULL, AV_LOG_INFO, " (copy)");
3866  else {
3867  const AVCodec *in_codec = input_streams[ost->source_index]->dec;
3868  const AVCodec *out_codec = ost->enc;
3869  const char *decoder_name = "?";
3870  const char *in_codec_name = "?";
3871  const char *encoder_name = "?";
3872  const char *out_codec_name = "?";
3873  const AVCodecDescriptor *desc;
3874 
3875  if (in_codec) {
3876  decoder_name = in_codec->name;
3877  desc = avcodec_descriptor_get(in_codec->id);
3878  if (desc)
3879  in_codec_name = desc->name;
3880  if (!strcmp(decoder_name, in_codec_name))
3881  decoder_name = "native";
3882  }
3883 
3884  if (out_codec) {
3885  encoder_name = out_codec->name;
3886  desc = avcodec_descriptor_get(out_codec->id);
3887  if (desc)
3888  out_codec_name = desc->name;
3889  if (!strcmp(encoder_name, out_codec_name))
3890  encoder_name = "native";
3891  }
3892 
3893  av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
3894  in_codec_name, decoder_name,
3895  out_codec_name, encoder_name);
3896  }
3897  av_log(NULL, AV_LOG_INFO, "\n");
3898  }
3899 
3900  if (ret) {
3901  av_log(NULL, AV_LOG_ERROR, "%s\n", error);
3902  return ret;
3903  }
3904 
3906 
3907  return 0;
3908 }
3909 
3910 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
3911 static int need_output(void)
3912 {
3913  int i;
3914 
3915  for (i = 0; i < nb_output_streams; i++) {
3917  OutputFile *of = output_files[ost->file_index];
3918  AVFormatContext *os = output_files[ost->file_index]->ctx;
3919 
3920  if (ost->finished ||
3921  (os->pb && avio_tell(os->pb) >= of->limit_filesize))
3922  continue;
3923  if (ost->frame_number >= ost->max_frames) {
3924  int j;
3925  for (j = 0; j < of->ctx->nb_streams; j++)
3927  continue;
3928  }
3929 
3930  return 1;
3931  }
3932 
3933  return 0;
3934 }
3935 
3936 /**
3937  * Select the output stream to process.
3938  *
3939  * @return selected output stream, or NULL if none available
3940  */
3942 {
3943  int i;
3944  int64_t opts_min = INT64_MAX;
3945  OutputStream *ost_min = NULL;
3946 
3947  for (i = 0; i < nb_output_streams; i++) {
3949  int64_t opts = ost->st->cur_dts == AV_NOPTS_VALUE ? INT64_MIN :
3950  av_rescale_q(ost->st->cur_dts, ost->st->time_base,
3951  AV_TIME_BASE_Q);
3952  if (ost->st->cur_dts == AV_NOPTS_VALUE)
3954  "cur_dts is invalid st:%d (%d) [init:%d i_done:%d finish:%d] (this is harmless if it occurs once at the start per stream)\n",
3955  ost->st->index, ost->st->id, ost->initialized, ost->inputs_done, ost->finished);
3956 
3957  if (!ost->initialized && !ost->inputs_done)
3958  return ost->unavailable ? NULL : ost;
3959 
3960  if (!ost->finished && opts < opts_min) {
3961  opts_min = opts;
3962  ost_min = ost->unavailable ? NULL : ost;
3963  }
3964  }
3965  return ost_min;
3966 }
3967 
3968 static void set_tty_echo(int on)
3969 {
3970 #if HAVE_TERMIOS_H
3971  struct termios tty;
3972  if (tcgetattr(0, &tty) == 0) {
3973  if (on) tty.c_lflag |= ECHO;
3974  else tty.c_lflag &= ~ECHO;
3975  tcsetattr(0, TCSANOW, &tty);
3976  }
3977 #endif
3978 }
3979 
3980 static int check_keyboard_interaction(int64_t cur_time)
3981 {
3982  int i, ret, key;
3983  static int64_t last_time;
3984  if (received_nb_signals)
3985  return AVERROR_EXIT;
3986  /* read_key() returns 0 on EOF */
3987  if(cur_time - last_time >= 100000 && !run_as_daemon){
3988  key = read_key();
3989  last_time = cur_time;
3990  }else
3991  key = -1;
3992  if (key == 'q')
3993  return AVERROR_EXIT;
3994  if (key == '+') av_log_set_level(av_log_get_level()+10);
3995  if (key == '-') av_log_set_level(av_log_get_level()-10);
3996  if (key == 's') qp_hist ^= 1;
3997  if (key == 'h'){
3998  if (do_hex_dump){
3999  do_hex_dump = do_pkt_dump = 0;
4000  } else if(do_pkt_dump){
4001  do_hex_dump = 1;
4002  } else
4003  do_pkt_dump = 1;
4005  }
4006  if (key == 'c' || key == 'C'){
4007  char buf[4096], target[64], command[256], arg[256] = {0};
4008  double time;
4009  int k, n = 0;
4010  fprintf(stderr, "\nEnter command: <target>|all <time>|-1 <command>[ <argument>]\n");
4011  i = 0;
4012  set_tty_echo(1);
4013  while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
4014  if (k > 0)
4015  buf[i++] = k;
4016  buf[i] = 0;
4017  set_tty_echo(0);
4018  fprintf(stderr, "\n");
4019  if (k > 0 &&
4020  (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
4021  av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
4022  target, time, command, arg);
4023  for (i = 0; i < nb_filtergraphs; i++) {
4024  FilterGraph *fg = filtergraphs[i];
4025  if (fg->graph) {
4026  if (time < 0) {
4027  ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
4028  key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
4029  fprintf(stderr, "Command reply for stream %d: ret:%d res:\n%s", i, ret, buf);
4030  } else if (key == 'c') {
4031  fprintf(stderr, "Queuing commands only on filters supporting the specific command is unsupported\n");
4032  ret = AVERROR_PATCHWELCOME;
4033  } else {
4034  ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
4035  if (ret < 0)
4036  fprintf(stderr, "Queuing command failed with error %s\n", av_err2str(ret));
4037  }
4038  }
4039  }
4040  } else {
4042  "Parse error, at least 3 arguments were expected, "
4043  "only %d given in string '%s'\n", n, buf);
4044  }
4045  }
4046  if (key == 'd' || key == 'D'){
4047  int debug=0;
4048  if(key == 'D') {
4049  debug = input_streams[0]->dec_ctx->debug << 1;
4050  if(!debug) debug = 1;
4051  while (debug & FF_DEBUG_DCT_COEFF) //unsupported, would just crash
4052  debug += debug;
4053  }else{
4054  char buf[32];
4055  int k = 0;
4056  i = 0;
4057  set_tty_echo(1);
4058  while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
4059  if (k > 0)
4060  buf[i++] = k;
4061  buf[i] = 0;
4062  set_tty_echo(0);
4063  fprintf(stderr, "\n");
4064  if (k <= 0 || sscanf(buf, "%d", &debug)!=1)
4065  fprintf(stderr,"error parsing debug value\n");
4066  }
4067  for(i=0;i<nb_input_streams;i++) {
4068  input_streams[i]->dec_ctx->debug = debug;
4069  }
4070  for(i=0;i<nb_output_streams;i++) {
4072  ost->enc_ctx->debug = debug;
4073  }
4074  if(debug) av_log_set_level(AV_LOG_DEBUG);
4075  fprintf(stderr,"debug=%d\n", debug);
4076  }
4077  if (key == '?'){
4078  fprintf(stderr, "key function\n"
4079  "? show this help\n"
4080  "+ increase verbosity\n"
4081  "- decrease verbosity\n"
4082  "c Send command to first matching filter supporting it\n"
4083  "C Send/Queue command to all matching filters\n"
4084  "D cycle through available debug modes\n"
4085  "h dump packets/hex press to cycle through the 3 states\n"
4086  "q quit\n"
4087  "s Show QP histogram\n"
4088  );
4089  }
4090  return 0;
4091 }
4092 
4093 #if HAVE_THREADS
4094 static void *input_thread(void *arg)
4095 {
4096  InputFile *f = arg;
4097  AVPacket *pkt = f->pkt, *queue_pkt;
4098  unsigned flags = f->non_blocking ? AV_THREAD_MESSAGE_NONBLOCK : 0;
4099  int ret = 0;
4100 
4101  while (1) {
4102  ret = av_read_frame(f->ctx, pkt);
4103 
4104  if (ret == AVERROR(EAGAIN)) {
4105  av_usleep(10000);
4106  continue;
4107  }
4108  if (ret < 0) {
4109  av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
4110  break;
4111  }
4112  queue_pkt = av_packet_alloc();
4113  if (!queue_pkt) {
4115  av_thread_message_queue_set_err_recv(f->in_thread_queue, AVERROR(ENOMEM));
4116  break;
4117  }
4118  av_packet_move_ref(queue_pkt, pkt);
4119  ret = av_thread_message_queue_send(f->in_thread_queue, &queue_pkt, flags);
4120  if (flags && ret == AVERROR(EAGAIN)) {
4121  flags = 0;
4122  ret = av_thread_message_queue_send(f->in_thread_queue, &queue_pkt, flags);
4123  av_log(f->ctx, AV_LOG_WARNING,
4124  "Thread message queue blocking; consider raising the "
4125  "thread_queue_size option (current value: %d)\n",
4126  f->thread_queue_size);
4127  }
4128  if (ret < 0) {
4129  if (ret != AVERROR_EOF)
4130  av_log(f->ctx, AV_LOG_ERROR,
4131  "Unable to send packet to main thread: %s\n",
4132  av_err2str(ret));
4133  av_packet_free(&queue_pkt);
4134  av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
4135  break;
4136  }
4137  }
4138 
4139  return NULL;
4140 }
4141 
4142 static void free_input_thread(int i)
4143 {
4144  InputFile *f = input_files[i];
4145  AVPacket *pkt;
4146 
4147  if (!f || !f->in_thread_queue)
4148  return;
4150  while (av_thread_message_queue_recv(f->in_thread_queue, &pkt, 0) >= 0)
4151  av_packet_free(&pkt);
4152 
4153  pthread_join(f->thread, NULL);
4154  f->joined = 1;
4155  av_thread_message_queue_free(&f->in_thread_queue);
4156 }
4157 
4158 static void free_input_threads(void)
4159 {
4160  int i;
4161 
4162  for (i = 0; i < nb_input_files; i++)
4163  free_input_thread(i);
4164 }
4165 
4166 static int init_input_thread(int i)
4167 {
4168  int ret;
4169  InputFile *f = input_files[i];
4170 
4171  if (f->thread_queue_size < 0)
4172  f->thread_queue_size = (nb_input_files > 1 ? 8 : 0);
4173  if (!f->thread_queue_size)
4174  return 0;
4175 
4176  if (f->ctx->pb ? !f->ctx->pb->seekable :
4177  strcmp(f->ctx->iformat->name, "lavfi"))
4178  f->non_blocking = 1;
4179  ret = av_thread_message_queue_alloc(&f->in_thread_queue,
4180  f->thread_queue_size, sizeof(f->pkt));
4181  if (ret < 0)
4182  return ret;
4183 
4184  if ((ret = pthread_create(&f->thread, NULL, input_thread, f))) {
4185  av_log(NULL, AV_LOG_ERROR, "pthread_create failed: %s. Try to increase `ulimit -v` or decrease `ulimit -s`.\n", strerror(ret));
4186  av_thread_message_queue_free(&f->in_thread_queue);
4187  return AVERROR(ret);
4188  }
4189 
4190  return 0;
4191 }
4192 
4193 static int init_input_threads(void)
4194 {
4195  int i, ret;
4196 
4197  for (i = 0; i < nb_input_files; i++) {
4198  ret = init_input_thread(i);
4199  if (ret < 0)
4200  return ret;
4201  }
4202  return 0;
4203 }
4204 
4205 static int get_input_packet_mt(InputFile *f, AVPacket **pkt)
4206 {
4207  return av_thread_message_queue_recv(f->in_thread_queue, pkt,
4208  f->non_blocking ?
4210 }
4211 #endif
4212 
4214 {
4215  if (f->rate_emu) {
4216  int i;
4217  for (i = 0; i < f->nb_streams; i++) {
4218  InputStream *ist = input_streams[f->ist_index + i];
4219  int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
4220  int64_t now = av_gettime_relative() - ist->start;
4221  if (pts > now)
4222  return AVERROR(EAGAIN);
4223  }
4224  }
4225 
4226 #if HAVE_THREADS
4227  if (f->thread_queue_size)
4228  return get_input_packet_mt(f, pkt);
4229 #endif
4230  *pkt = f->pkt;
4231  return av_read_frame(f->ctx, *pkt);
4232 }
4233 
4234 static int got_eagain(void)
4235 {
4236  int i;
4237  for (i = 0; i < nb_output_streams; i++)
4238  if (output_streams[i]->unavailable)
4239  return 1;
4240  return 0;
4241 }
4242 
4243 static void reset_eagain(void)
4244 {
4245  int i;
4246  for (i = 0; i < nb_input_files; i++)
4247  input_files[i]->eagain = 0;
4248  for (i = 0; i < nb_output_streams; i++)
4249  output_streams[i]->unavailable = 0;
4250 }
4251 
4252 // set duration to max(tmp, duration) in a proper time base and return duration's time_base
4253 static AVRational duration_max(int64_t tmp, int64_t *duration, AVRational tmp_time_base,
4254  AVRational time_base)
4255 {
4256  int ret;
4257 
4258  if (!*duration) {
4259  *duration = tmp;
4260  return tmp_time_base;
4261  }
4262 
4263  ret = av_compare_ts(*duration, time_base, tmp, tmp_time_base);
4264  if (ret < 0) {
4265  *duration = tmp;
4266  return tmp_time_base;
4267  }
4268 
4269  return time_base;
4270 }
4271 
4273 {
4274  InputStream *ist;
4275  AVCodecContext *avctx;
4276  int i, ret, has_audio = 0;
4277  int64_t duration = 0;
4278 
4279  ret = avformat_seek_file(is, -1, INT64_MIN, is->start_time, is->start_time, 0);
4280  if (ret < 0)
4281  return ret;
4282 
4283  for (i = 0; i < ifile->nb_streams; i++) {
4284  ist = input_streams[ifile->ist_index + i];
4285  avctx = ist->dec_ctx;
4286 
4287  /* duration is the length of the last frame in a stream
4288  * when audio stream is present we don't care about
4289  * last video frame length because it's not defined exactly */
4290  if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples)
4291  has_audio = 1;
4292  }
4293 
4294  for (i = 0; i < ifile->nb_streams; i++) {
4295  ist = input_streams[ifile->ist_index + i];
4296  avctx = ist->dec_ctx;
4297 
4298  if (has_audio) {
4299  if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples) {
4300  AVRational sample_rate = {1, avctx->sample_rate};
4301 
4303  } else {
4304  continue;
4305  }
4306  } else {
4307  if (ist->framerate.num) {
4308  duration = av_rescale_q(1, av_inv_q(ist->framerate), ist->st->time_base);
4309  } else if (ist->st->avg_frame_rate.num) {
4311  } else {
4312  duration = 1;
4313  }
4314  }
4315  if (!ifile->duration)
4316  ifile->time_base = ist->st->time_base;
4317  /* the total duration of the stream, max_pts - min_pts is
4318  * the duration of the stream without the last frame */
4319  if (ist->max_pts > ist->min_pts && ist->max_pts - (uint64_t)ist->min_pts < INT64_MAX - duration)
4320  duration += ist->max_pts - ist->min_pts;
4321  ifile->time_base = duration_max(duration, &ifile->duration, ist->st->time_base,
4322  ifile->time_base);
4323  }
4324 
4325  if (ifile->loop > 0)
4326  ifile->loop--;
4327 
4328  return ret;
4329 }
4330 
4331 /*
4332  * Return
4333  * - 0 -- one packet was read and processed
4334  * - AVERROR(EAGAIN) -- no packets were available for selected file,
4335  * this function should be called again
4336  * - AVERROR_EOF -- this function should not be called again
4337  */
4338 static int process_input(int file_index)
4339 {
4340  InputFile *ifile = input_files[file_index];
4342  InputStream *ist;
4343  AVPacket *pkt;
4344  int ret, thread_ret, i, j;
4345  int64_t duration;
4346  int64_t pkt_dts;
4347  int disable_discontinuity_correction = copy_ts;
4348 
4349  is = ifile->ctx;
4350  ret = get_input_packet(ifile, &pkt);
4351 
4352  if (ret == AVERROR(EAGAIN)) {
4353  ifile->eagain = 1;
4354  return ret;
4355  }
4356  if (ret < 0 && ifile->loop) {
4357  AVCodecContext *avctx;
4358  for (i = 0; i < ifile->nb_streams; i++) {
4359  ist = input_streams[ifile->ist_index + i];
4360  avctx = ist->dec_ctx;
4361  if (ist->decoding_needed) {
4362  ret = process_input_packet(ist, NULL, 1);
4363  if (ret>0)
4364  return 0;
4365  avcodec_flush_buffers(avctx);
4366  }
4367  }
4368 #if HAVE_THREADS
4369  free_input_thread(file_index);
4370 #endif
4371  ret = seek_to_start(ifile, is);
4372 #if HAVE_THREADS
4373  thread_ret = init_input_thread(file_index);
4374  if (thread_ret < 0)
4375  return thread_ret;
4376 #endif
4377  if (ret < 0)
4378  av_log(NULL, AV_LOG_WARNING, "Seek to start failed.\n");
4379  else
4380  ret = get_input_packet(ifile, &pkt);
4381  if (ret == AVERROR(EAGAIN)) {
4382  ifile->eagain = 1;
4383  return ret;
4384  }
4385  }
4386  if (ret < 0) {
4387  if (ret != AVERROR_EOF) {
4388  print_error(is->url, ret);
4389  if (exit_on_error)
4390  exit_program(1);
4391  }
4392 
4393  for (i = 0; i < ifile->nb_streams; i++) {
4394  ist = input_streams[ifile->ist_index + i];
4395  if (ist->decoding_needed) {
4396  ret = process_input_packet(ist, NULL, 0);
4397  if (ret>0)
4398  return 0;
4399  }
4400 
4401  /* mark all outputs that don't go through lavfi as finished */
4402  for (j = 0; j < nb_output_streams; j++) {
4404 
4405  if (ost->source_index == ifile->ist_index + i &&
4406  (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
4408  }
4409  }
4410 
4411  ifile->eof_reached = 1;
4412  return AVERROR(EAGAIN);
4413  }
4414 
4415  reset_eagain();
4416 
4417  if (do_pkt_dump) {
4419  is->streams[pkt->stream_index]);
4420  }
4421  /* the following test is needed in case new streams appear
4422  dynamically in stream : we ignore them */
4423  if (pkt->stream_index >= ifile->nb_streams) {
4424  report_new_stream(file_index, pkt);
4425  goto discard_packet;
4426  }
4427 
4428  ist = input_streams[ifile->ist_index + pkt->stream_index];
4429 
4430  ist->data_size += pkt->size;
4431  ist->nb_packets++;
4432 
4433  if (ist->discard)
4434  goto discard_packet;
4435 
4436  if (pkt->flags & AV_PKT_FLAG_CORRUPT) {
4438  "%s: corrupt input packet in stream %d\n", is->url, pkt->stream_index);
4439  if (exit_on_error)
4440  exit_program(1);
4441  }
4442 
4443  if (debug_ts) {
4444  av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
4445  "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",
4453  }
4454 
4455  if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
4456  int64_t stime, stime2;
4457  // Correcting starttime based on the enabled streams
4458  // 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.
4459  // so we instead do it here as part of discontinuity handling
4460  if ( ist->next_dts == AV_NOPTS_VALUE
4461  && ifile->ts_offset == -is->start_time
4462  && (is->iformat->flags & AVFMT_TS_DISCONT)) {
4463  int64_t new_start_time = INT64_MAX;
4464  for (i=0; i<is->nb_streams; i++) {
4465  AVStream *st = is->streams[i];
4466  if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
4467  continue;
4468  new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
4469  }
4470  if (new_start_time > is->start_time) {
4471  av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
4472  ifile->ts_offset = -new_start_time;
4473  }
4474  }
4475 
4476  stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
4477  stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
4478  ist->wrap_correction_done = 1;
4479 
4480  if(stime2 > stime && pkt->dts != AV_NOPTS_VALUE && pkt->dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
4481  pkt->dts -= 1ULL<<ist->st->pts_wrap_bits;
4482  ist->wrap_correction_done = 0;
4483  }
4484  if(stime2 > stime && pkt->pts != AV_NOPTS_VALUE && pkt->pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
4485  pkt->pts -= 1ULL<<ist->st->pts_wrap_bits;
4486  ist->wrap_correction_done = 0;
4487  }
4488  }
4489 
4490  /* add the stream-global side data to the first packet */
4491  if (ist->nb_packets == 1) {
4492  for (i = 0; i < ist->st->nb_side_data; i++) {
4493  AVPacketSideData *src_sd = &ist->st->side_data[i];
4494  uint8_t *dst_data;
4495 
4496  if (src_sd->type == AV_PKT_DATA_DISPLAYMATRIX)
4497  continue;
4498 
4499  if (av_packet_get_side_data(pkt, src_sd->type, NULL))
4500  continue;
4501 
4502  dst_data = av_packet_new_side_data(pkt, src_sd->type, src_sd->size);
4503  if (!dst_data)
4504  exit_program(1);
4505 
4506  memcpy(dst_data, src_sd->data, src_sd->size);
4507  }
4508  }
4509 
4510  if (pkt->dts != AV_NOPTS_VALUE)
4511  pkt->dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
4512  if (pkt->pts != AV_NOPTS_VALUE)
4513  pkt->pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
4514 
4515  if (pkt->pts != AV_NOPTS_VALUE)
4516  pkt->pts *= ist->ts_scale;
4517  if (pkt->dts != AV_NOPTS_VALUE)
4518  pkt->dts *= ist->ts_scale;
4519 
4521  if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
4523  pkt_dts != AV_NOPTS_VALUE && ist->next_dts == AV_NOPTS_VALUE && !copy_ts
4524  && (is->iformat->flags & AVFMT_TS_DISCONT) && ifile->last_ts != AV_NOPTS_VALUE) {
4525  int64_t delta = pkt_dts - ifile->last_ts;
4526  if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
4528  ifile->ts_offset -= delta;
4530  "Inter stream timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
4531  delta, ifile->ts_offset);
4533  if (pkt->pts != AV_NOPTS_VALUE)
4535  }
4536  }
4537 
4538  duration = av_rescale_q(ifile->duration, ifile->time_base, ist->st->time_base);
4539  if (pkt->pts != AV_NOPTS_VALUE) {
4540  pkt->pts += duration;
4541  ist->max_pts = FFMAX(pkt->pts, ist->max_pts);
4542  ist->min_pts = FFMIN(pkt->pts, ist->min_pts);
4543  }
4544 
4545  if (pkt->dts != AV_NOPTS_VALUE)
4546  pkt->dts += duration;
4547 
4549 
4550  if (copy_ts && pkt_dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
4551  (is->iformat->flags & AVFMT_TS_DISCONT) && ist->st->pts_wrap_bits < 60) {
4552  int64_t wrap_dts = av_rescale_q_rnd(pkt->dts + (1LL<<ist->st->pts_wrap_bits),
4553  ist->st->time_base, AV_TIME_BASE_Q,
4555  if (FFABS(wrap_dts - ist->next_dts) < FFABS(pkt_dts - ist->next_dts)/10)
4556  disable_discontinuity_correction = 0;
4557  }
4558 
4559  if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
4561  pkt_dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
4562  !disable_discontinuity_correction) {
4563  int64_t delta = pkt_dts - ist->next_dts;
4564  if (is->iformat->flags & AVFMT_TS_DISCONT) {
4565  if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
4567  pkt_dts + AV_TIME_BASE/10 < FFMAX(ist->pts, ist->dts)) {
4568  ifile->ts_offset -= delta;
4570  "timestamp discontinuity for stream #%d:%d "
4571  "(id=%d, type=%s): %"PRId64", new offset= %"PRId64"\n",
4572  ist->file_index, ist->st->index, ist->st->id,
4574  delta, ifile->ts_offset);
4576  if (pkt->pts != AV_NOPTS_VALUE)
4578  }
4579  } else {
4580  if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
4582  av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt->dts, ist->next_dts, pkt->stream_index);
4583  pkt->dts = AV_NOPTS_VALUE;
4584  }
4585  if (pkt->pts != AV_NOPTS_VALUE){
4586  int64_t pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
4587  delta = pkt_pts - ist->next_dts;
4588  if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
4590  av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt->pts, ist->next_dts, pkt->stream_index);
4591  pkt->pts = AV_NOPTS_VALUE;
4592  }
4593  }
4594  }
4595  }
4596 
4597  if (pkt->dts != AV_NOPTS_VALUE)
4598  ifile->last_ts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
4599 
4600  if (debug_ts) {
4601  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",
4607  }
4608 
4609  sub2video_heartbeat(ist, pkt->pts);
4610 
4611  process_input_packet(ist, pkt, 0);
4612 
4613 discard_packet:
4614 #if HAVE_THREADS
4615  if (ifile->thread_queue_size)
4616  av_packet_free(&pkt);
4617  else
4618 #endif
4620 
4621  return 0;
4622 }
4623 
4624 /**
4625  * Perform a step of transcoding for the specified filter graph.
4626  *
4627  * @param[in] graph filter graph to consider
4628  * @param[out] best_ist input stream where a frame would allow to continue
4629  * @return 0 for success, <0 for error
4630  */
4631 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
4632 {
4633  int i, ret;
4634  int nb_requests, nb_requests_max = 0;
4635  InputFilter *ifilter;
4636  InputStream *ist;
4637 
4638  *best_ist = NULL;
4639  ret = avfilter_graph_request_oldest(graph->graph);
4640  if (ret >= 0)
4641  return reap_filters(0);
4642 
4643  if (ret == AVERROR_EOF) {
4644  ret = reap_filters(1);
4645  for (i = 0; i < graph->nb_outputs; i++)
4646  close_output_stream(graph->outputs[i]->ost);
4647  return ret;
4648  }
4649  if (ret != AVERROR(EAGAIN))
4650  return ret;
4651 
4652  for (i = 0; i < graph->nb_inputs; i++) {
4653  ifilter = graph->inputs[i];
4654  ist = ifilter->ist;
4655  if (input_files[ist->file_index]->eagain ||
4657  continue;
4658  nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
4659  if (nb_requests > nb_requests_max) {
4660  nb_requests_max = nb_requests;
4661  *best_ist = ist;
4662  }
4663  }
4664 
4665  if (!*best_ist)
4666  for (i = 0; i < graph->nb_outputs; i++)
4667  graph->outputs[i]->ost->unavailable = 1;
4668 
4669  return 0;
4670 }
4671 
4672 /**
4673  * Run a single step of transcoding.
4674  *
4675  * @return 0 for success, <0 for error
4676  */
4677 static int transcode_step(void)
4678 {
4679  OutputStream *ost;
4680  InputStream *ist = NULL;
4681  int ret;
4682 
4683  ost = choose_output();
4684  if (!ost) {
4685  if (got_eagain()) {
4686  reset_eagain();
4687  av_usleep(10000);
4688  return 0;
4689  }
4690  av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
4691  return AVERROR_EOF;
4692  }
4693 
4694  if (ost->filter && !ost->filter->graph->graph) {
4695  if (ifilter_has_all_input_formats(ost->filter->graph)) {
4696  ret = configure_filtergraph(ost->filter->graph);
4697  if (ret < 0) {
4698  av_log(NULL, AV_LOG_ERROR, "Error reinitializing filters!\n");
4699  return ret;
4700  }
4701  }
4702  }
4703 
4704  if (ost->filter && ost->filter->graph->graph) {
4705  /*
4706  * Similar case to the early audio initialization in reap_filters.
4707  * Audio is special in ffmpeg.c currently as we depend on lavfi's
4708  * audio frame buffering/creation to get the output audio frame size
4709  * in samples correct. The audio frame size for the filter chain is
4710  * configured during the output stream initialization.
4711  *
4712  * Apparently avfilter_graph_request_oldest (called in
4713  * transcode_from_filter just down the line) peeks. Peeking already
4714  * puts one frame "ready to be given out", which means that any
4715  * update in filter buffer sink configuration afterwards will not
4716  * help us. And yes, even if it would be utilized,
4717  * av_buffersink_get_samples is affected, as it internally utilizes
4718  * the same early exit for peeked frames.
4719  *
4720  * In other words, if avfilter_graph_request_oldest would not make
4721  * further filter chain configuration or usage of
4722  * av_buffersink_get_samples useless (by just causing the return
4723  * of the peeked AVFrame as-is), we could get rid of this additional
4724  * early encoder initialization.
4725  */
4726  if (av_buffersink_get_type(ost->filter->filter) == AVMEDIA_TYPE_AUDIO)
4728 
4729  if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
4730  return ret;
4731  if (!ist)
4732  return 0;
4733  } else if (ost->filter) {
4734  int i;
4735  for (i = 0; i < ost->filter->graph->nb_inputs; i++) {
4736  InputFilter *ifilter = ost->filter->graph->inputs[i];
4737  if (!ifilter->ist->got_output && !input_files[ifilter->ist->file_index]->eof_reached) {
4738  ist = ifilter->ist;
4739  break;
4740  }
4741  }
4742  if (!ist) {
4743  ost->inputs_done = 1;
4744  return 0;
4745  }
4746  } else {
4747  av_assert0(ost->source_index >= 0);
4748  ist = input_streams[ost->source_index];
4749  }
4750 
4751  ret = process_input(ist->file_index);
4752  if (ret == AVERROR(EAGAIN)) {
4753  if (input_files[ist->file_index]->eagain)
4754  ost->unavailable = 1;
4755  return 0;
4756  }
4757 
4758  if (ret < 0)
4759  return ret == AVERROR_EOF ? 0 : ret;
4760 
4761  return reap_filters(0);
4762 }
4763 
4764 /*
4765  * The following code is the main loop of the file converter
4766  */
4767 static int transcode(void)
4768 {
4769  int ret, i;
4770  AVFormatContext *os;
4771  OutputStream *ost;
4772  InputStream *ist;
4773  int64_t timer_start;
4774  int64_t total_packets_written = 0;
4775 
4776  ret = transcode_init();
4777  if (ret < 0)
4778  goto fail;
4779 
4780  if (stdin_interaction) {
4781  av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
4782  }
4783 
4784  timer_start = av_gettime_relative();
4785 
4786 #if HAVE_THREADS
4787  if ((ret = init_input_threads()) < 0)
4788  goto fail;
4789 #endif
4790 
4791  while (!received_sigterm) {
4792  int64_t cur_time= av_gettime_relative();
4793 
4794  /* if 'q' pressed, exits */
4795  if (stdin_interaction)
4796  if (check_keyboard_interaction(cur_time) < 0)
4797  break;
4798 
4799  /* check if there's any stream where output is still needed */
4800  if (!need_output()) {
4801  av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
4802  break;
4803  }
4804 
4805  ret = transcode_step();
4806  if (ret < 0 && ret != AVERROR_EOF) {
4807  av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", av_err2str(ret));
4808  break;
4809  }
4810 
4811  /* dump report by using the output first video and audio streams */
4812  print_report(0, timer_start, cur_time);
4813  }
4814 #if HAVE_THREADS
4815  free_input_threads();
4816 #endif
4817 
4818  /* at the end of stream, we must flush the decoder buffers */
4819  for (i = 0; i < nb_input_streams; i++) {
4820  ist = input_streams[i];
4821  if (!input_files[ist->file_index]->eof_reached) {
4822  process_input_packet(ist, NULL, 0);
4823  }
4824  }
4825  flush_encoders();
4826 
4827  term_exit();
4828 
4829  /* write the trailer if needed and close file */
4830  for (i = 0; i < nb_output_files; i++) {
4831  os = output_files[i]->ctx;
4832  if (!output_files[i]->header_written) {
4834  "Nothing was written into output file %d (%s), because "
4835  "at least one of its streams received no packets.\n",
4836  i, os->url);
4837  continue;
4838  }
4839  if ((ret = av_write_trailer(os)) < 0) {
4840  av_log(NULL, AV_LOG_ERROR, "Error writing trailer of %s: %s\n", os->url, av_err2str(ret));
4841  if (exit_on_error)
4842  exit_program(1);
4843  }
4844  }
4845 
4846  /* dump report by using the first video and audio streams */
4847  print_report(1, timer_start, av_gettime_relative());
4848 
4849  /* close each encoder */
4850  for (i = 0; i < nb_output_streams; i++) {
4851  ost = output_streams[i];
4852  if (ost->encoding_needed) {
4853  av_freep(&ost->enc_ctx->stats_in);
4854  }
4855  total_packets_written += ost->packets_written;
4856  if (!ost->packets_written && (abort_on_flags & ABORT_ON_FLAG_EMPTY_OUTPUT_STREAM)) {
4857  av_log(NULL, AV_LOG_FATAL, "Empty output on stream %d.\n", i);
4858  exit_program(1);
4859  }
4860  }
4861 
4862  if (!total_packets_written && (abort_on_flags & ABORT_ON_FLAG_EMPTY_OUTPUT)) {
4863  av_log(NULL, AV_LOG_FATAL, "Empty output\n");
4864  exit_program(1);
4865  }
4866 
4867  /* close each decoder */
4868  for (i = 0; i < nb_input_streams; i++) {
4869  ist = input_streams[i];
4870  if (ist->decoding_needed) {
4871  avcodec_close(ist->dec_ctx);
4872  if (ist->hwaccel_uninit)
4873  ist->hwaccel_uninit(ist->dec_ctx);
4874  }
4875  }
4876 
4878 
4879  /* finished ! */
4880  ret = 0;
4881 
4882  fail:
4883 #if HAVE_THREADS
4884  free_input_threads();
4885 #endif
4886 
4887  if (output_streams) {
4888  for (i = 0; i < nb_output_streams; i++) {
4889  ost = output_streams[i];
4890  if (ost) {
4891  if (ost->logfile) {
4892  if (fclose(ost->logfile))
4894  "Error closing logfile, loss of information possible: %s\n",
4895  av_err2str(AVERROR(errno)));
4896  ost->logfile = NULL;
4897  }
4898  av_freep(&ost->forced_kf_pts);
4899  av_freep(&ost->apad);
4901  av_dict_free(&ost->encoder_opts);
4902  av_dict_free(&ost->sws_dict);
4903  av_dict_free(&ost->swr_opts);
4904  av_dict_free(&ost->resample_opts);
4905  }
4906  }
4907  }
4908  return ret;
4909 }
4910 
4912 {
4913  BenchmarkTimeStamps time_stamps = { av_gettime_relative() };
4914 #if HAVE_GETRUSAGE
4915  struct rusage rusage;
4916 
4917  getrusage(RUSAGE_SELF, &rusage);
4918  time_stamps.user_usec =
4919  (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
4920  time_stamps.sys_usec =
4921  (rusage.ru_stime.tv_sec * 1000000LL) + rusage.ru_stime.tv_usec;
4922 #elif HAVE_GETPROCESSTIMES
4923  HANDLE proc;
4924  FILETIME c, e, k, u;
4925  proc = GetCurrentProcess();
4926  GetProcessTimes(proc, &c, &e, &k, &u);
4927  time_stamps.user_usec =
4928  ((int64_t)u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
4929  time_stamps.sys_usec =
4930  ((int64_t)k.dwHighDateTime << 32 | k.dwLowDateTime) / 10;
4931 #else
4932  time_stamps.user_usec = time_stamps.sys_usec = 0;
4933 #endif
4934  return time_stamps;
4935 }
4936 
4937 static int64_t getmaxrss(void)
4938 {
4939 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
4940  struct rusage rusage;
4941  getrusage(RUSAGE_SELF, &rusage);
4942  return (int64_t)rusage.ru_maxrss * 1024;
4943 #elif HAVE_GETPROCESSMEMORYINFO
4944  HANDLE proc;
4945  PROCESS_MEMORY_COUNTERS memcounters;
4946  proc = GetCurrentProcess();
4947  memcounters.cb = sizeof(memcounters);
4948  GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
4949  return memcounters.PeakPagefileUsage;
4950 #else
4951  return 0;
4952 #endif
4953 }
4954 
4955 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
4956 {
4957 }
4958 
4959 int main(int argc, char **argv)
4960 {
4961  int i, ret;
4963 
4964  init_dynload();
4965 
4967 
4968  setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
4969 
4971  parse_loglevel(argc, argv, options);
4972 
4973  if(argc>1 && !strcmp(argv[1], "-d")){
4974  run_as_daemon=1;
4976  argc--;
4977  argv++;
4978  }
4979 
4980 #if CONFIG_AVDEVICE
4982 #endif
4984 
4985  show_banner(argc, argv, options);
4986 
4987  /* parse options and open all input/output files */
4988  ret = ffmpeg_parse_options(argc, argv);
4989  if (ret < 0)
4990  exit_program(1);
4991 
4992  if (nb_output_files <= 0 && nb_input_files == 0) {
4993  show_usage();
4994  av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
4995  exit_program(1);
4996  }
4997 
4998  /* file converter / grab */
4999  if (nb_output_files <= 0) {
5000  av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
5001  exit_program(1);
5002  }
5003 
5004  for (i = 0; i < nb_output_files; i++) {
5005  if (strcmp(output_files[i]->ctx->oformat->name, "rtp"))
5006  want_sdp = 0;
5007  }
5008 
5010  if (transcode() < 0)
5011  exit_program(1);
5012  if (do_benchmark) {
5013  int64_t utime, stime, rtime;
5015  utime = current_time.user_usec - ti.user_usec;
5016  stime = current_time.sys_usec - ti.sys_usec;
5017  rtime = current_time.real_usec - ti.real_usec;
5019  "bench: utime=%0.3fs stime=%0.3fs rtime=%0.3fs\n",
5020  utime / 1000000.0, stime / 1000000.0, rtime / 1000000.0);
5021  }
5022  av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n",
5025  exit_program(69);
5026 
5028  return main_return_code;
5029 }
static void flush(AVCodecContext *avctx)
#define ECHO(name, type, min, max)
Definition: af_aecho.c:188
uint8_t
int32_t
simple assert() macros that are a bit more flexible than ISO C assert().
#define av_assert1(cond)
assert() equivalent, that does not lie in speed critical code.
Definition: avassert.h:53
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
#define FF_DEBUG_DCT_COEFF
Definition: avcodec.h:1629
Main libavdevice API header.
Main libavfilter public API header.
Main libavformat public API header.
#define AV_DISPOSITION_LYRICS
Definition: avformat.h:822
struct AVCodecParserContext * av_stream_get_parser(const AVStream *s)
Definition: utils.c:145
#define AVFMT_NOSTREAMS
Format does not require any streams.
Definition: avformat.h:467
#define AVFMT_FLAG_BITEXACT
When muxing, try to avoid writing any random/volatile data to the output.
Definition: avformat.h:1380
#define AV_DISPOSITION_HEARING_IMPAIRED
stream for hearing impaired audiences
Definition: avformat.h:831
#define AV_DISPOSITION_COMMENT
Definition: avformat.h:821
#define AVFMT_TS_DISCONT
Format allows timestamp discontinuities.
Definition: avformat.h:464
#define AVFMT_VARIABLE_FPS
Format allows variable fps.
Definition: avformat.h:465
#define AV_DISPOSITION_KARAOKE
Definition: avformat.h:823
#define AV_DISPOSITION_CAPTIONS
To specify text track kind (different from subtitles default).
Definition: avformat.h:853
#define AV_DISPOSITION_DUB
Definition: avformat.h:819
#define AV_DISPOSITION_METADATA
Definition: avformat.h:855
#define AVFMT_NOFILE
Demuxer will use avio_open, no opened file should be provided by the caller.
Definition: avformat.h:458
#define AV_DISPOSITION_DEPENDENT
dependent audio stream (mix_type=0 in mpegts)
Definition: avformat.h:856
#define AVFMT_TS_NONSTRICT
Format does not require strictly increasing timestamps, but they must still be monotonic.
Definition: avformat.h:472
#define AV_DISPOSITION_CLEAN_EFFECTS
stream without voice
Definition: avformat.h:833
#define AV_DISPOSITION_FORCED
Track should be used during playback by default.
Definition: avformat.h:830
#define AV_DISPOSITION_VISUAL_IMPAIRED
stream for visual impaired audiences
Definition: avformat.h:832
#define AV_DISPOSITION_ATTACHED_PIC
The stream is stored in the file as an attached picture/"cover art" (e.g.
Definition: avformat.h:841
#define AVFMT_NOTIMESTAMPS
Format does not need / have any timestamps.
Definition: avformat.h:462
#define AV_DISPOSITION_DESCRIPTIONS
Definition: avformat.h:854
int64_t av_stream_get_end_pts(const AVStream *st)
Returns the pts of the last muxed packet + its duration.
Definition: utils.c:137
#define AV_DISPOSITION_ORIGINAL
Definition: avformat.h:820
#define AV_DISPOSITION_DEFAULT
Definition: avformat.h:818
int64_t avio_size(AVIOContext *s)
Get the filesize.
Definition: aviobuf.c:342
#define avio_print(s,...)
Write strings (const char *) to the context.
Definition: avio.h:594
#define AVIO_FLAG_WRITE
write-only
Definition: avio.h:675
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
Definition: avio.h:557
void avio_write(AVIOContext *s, const unsigned char *buf, int size)
Definition: aviobuf.c:225
void avio_flush(AVIOContext *s)
Force flushing of buffered data.
Definition: aviobuf.c:245
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:1166
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:1195
uint8_t * av_packet_get_side_data(const AVPacket *pkt, enum AVPacketSideDataType type, buffer_size_t *size)
Definition: avpacket.c:368
uint8_t * av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type, buffer_size_t size)
Definition: avpacket.c:343
#define AV_RL64
Definition: intreadwrite.h:173
#define AV_RL32
Definition: intreadwrite.h:146
void av_bprintf(AVBPrint *buf, const char *fmt,...)
Definition: bprint.c:94
void av_bprint_init(AVBPrint *buf, unsigned size_init, unsigned size_max)
Definition: bprint.c:69
int av_bprint_finalize(AVBPrint *buf, char **ret_str)
Finalize a print buffer.
Definition: bprint.c:235
#define AV_BPRINT_SIZE_AUTOMATIC
memory buffer sink API for audio and video
Memory buffer source API.
static uint32_t codec_flags(enum AVCodecID codec_id)
Definition: cafenc.c:36
#define flags(name, subs,...)
Definition: cbs_av1.c:561
#define is(width, name, range_min, range_max, subs,...)
Definition: cbs_h2645.c:286
#define u(width, name, range_min, range_max)
Definition: cbs_h2645.c:264
#define us(width, name, range_min, range_max, subs,...)
Definition: cbs_h2645.c:278
#define s(width, name)
Definition: cbs_vp9.c:257
#define f(width, name)
Definition: cbs_vp9.c:255
static av_always_inline void filter(int16_t *output, ptrdiff_t out_stride, const int16_t *low, ptrdiff_t low_stride, const int16_t *high, ptrdiff_t high_stride, int len, int clip)
Definition: cfhddsp.c:27
audio channel layout utility functions
#define fail()
Definition: checkasm.h:133
void exit_program(int ret)
Wraps exit with a program-specific cleanup routine.
Definition: cmdutils.c:133
void init_dynload(void)
Initialize dynamic library loading.
Definition: cmdutils.c:117
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:1084
void parse_loglevel(int argc, char **argv, const OptionDef *options)
Find the '-loglevel' option in the command line args and apply it.
Definition: cmdutils.c:502
void show_banner(int argc, char **argv, const OptionDef *options)
Print the program banner to stderr.
Definition: cmdutils.c:1183
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:162
void register_exit(void(*cb)(int ret))
Register a program-specific cleanup routine.
Definition: cmdutils.c:128
void uninit_opts(void)
Uninitialize the cmdutils option system, in particular free the *_opts contexts and their contents.
Definition: cmdutils.c:87
#define media_type_string
Definition: cmdutils.h:617
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
Copy the contents of src to dst.
Definition: codec_par.c:72
void avcodec_parameters_free(AVCodecParameters **ppar)
Free an AVCodecParameters instance and everything associated with it and write NULL to the supplied p...
Definition: codec_par.c:61
@ AV_FIELD_TT
Definition: codec_par.h:39
@ AV_FIELD_BB
Definition: codec_par.h:40
@ AV_FIELD_PROGRESSIVE
Definition: codec_par.h:38
@ AV_FIELD_BT
Definition: codec_par.h:42
@ AV_FIELD_TB
Definition: codec_par.h:41
#define FFMAX3(a, b, c)
Definition: common.h:104
#define FFSWAP(type, a, b)
Definition: common.h:108
#define FFMIN(a, b)
Definition: common.h:105
#define av_clip
Definition: common.h:122
#define FFMAX(a, b)
Definition: common.h:103
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:72
#define FFDIFFSIGN(x, y)
Comparator.
Definition: common.h:101
#define FFSIGN(a)
Definition: common.h:73
#define FFMIN3(a, b, c)
Definition: common.h:106
#define NULL
Definition: coverity.c:32
#define max(a, b)
Definition: cuda_runtime.h:33
static enum AVPixelFormat pix_fmt
static AVFrame * frame
Public dictionary API.
Display matrix.
static float sub(float src0, float src1)
#define atomic_store(object, desired)
Definition: stdatomic.h:85
intptr_t atomic_int
Definition: stdatomic.h:55
#define atomic_load(object)
Definition: stdatomic.h:93
#define ATOMIC_VAR_INIT(value)
Definition: stdatomic.h:31
void av_expr_free(AVExpr *e)
Free a parsed expression previously created with av_expr_parse().
Definition: eval.c:336
double av_expr_eval(AVExpr *e, const double *const_values, void *opaque)
Evaluate a previously parsed expression.
Definition: eval.c:766
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:685
const char program_name[]
program name, defined by the program for show_version().
Definition: ffmpeg.c:109
static int nb_frames_drop
Definition: ffmpeg.c:137
AVIOContext * progress_avio
Definition: ffmpeg.c:144
static int nb_frames_dup
Definition: ffmpeg.c:135
static int transcode(void)
Definition: ffmpeg.c:4767
static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output, int *decode_failed)
Definition: ffmpeg.c:2523
static void set_tty_echo(int on)
Definition: ffmpeg.c:3968
static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output, int *decode_failed)
Definition: ffmpeg.c:2330
static int check_keyboard_interaction(int64_t cur_time)
Definition: ffmpeg.c:3980
static void do_audio_out(OutputFile *of, OutputStream *ost, AVFrame *frame)
Definition: ffmpeg.c:1004
int nb_output_streams
Definition: ffmpeg.c:154
static BenchmarkTimeStamps get_benchmark_time_stamps(void)
Definition: ffmpeg.c:4911
static int need_output(void)
Definition: ffmpeg.c:3911
void term_exit(void)
Definition: ffmpeg.c:337
static volatile int received_sigterm
Definition: ffmpeg.c:343
const char *const forced_keyframes_const_names[]
Definition: ffmpeg.c:114
static int decode(AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *pkt)
Definition: ffmpeg.c:2281
int nb_filtergraphs
Definition: ffmpeg.c:159
static int process_input_packet(InputStream *ist, const AVPacket *pkt, int no_eof)
Definition: ffmpeg.c:2618
static void do_subtitle_out(OutputFile *of, OutputStream *ost, AVSubtitle *sub)
Definition: ffmpeg.c:1062
static int init_input_stream(int ist_index, char *error, int error_len)
Definition: ffmpeg.c:2949
static void sub2video_push_ref(InputStream *ist, int64_t pts)
Definition: ffmpeg.c:223
int guess_input_channel_layout(InputStream *ist)
Definition: ffmpeg.c:2127
static void print_sdp(void)
Definition: ffmpeg.c:2808
static int reap_filters(int flush)
Get and encode new output from any of the filtergraphs, without causing activity.
Definition: ffmpeg.c:1502
static int check_recording_time(OutputStream *ost)
Definition: ffmpeg.c:923
InputFile ** input_files
Definition: ffmpeg.c:150
static void do_video_out(OutputFile *of, OutputStream *ost, AVFrame *next_picture)
Definition: ffmpeg.c:1145
static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
Definition: ffmpeg.c:2853
static void print_final_stats(int64_t total_size)
Definition: ffmpeg.c:1585
static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
Perform a step of transcoding for the specified filter graph.
Definition: ffmpeg.c:4631
const AVIOInterruptCB int_cb
Definition: ffmpeg.c:513
int main(int argc, char **argv)
Definition: ffmpeg.c:4959
static double psnr(double d)
Definition: ffmpeg.c:1435
static int init_output_bsfs(OutputStream *ost)
Definition: ffmpeg.c:3077
static int init_output_stream_encode(OutputStream *ost, AVFrame *frame)
Definition: ffmpeg.c:3348
static int main_return_code
Definition: ffmpeg.c:347
static uint8_t * subtitle_out
Definition: ffmpeg.c:146
static int send_frame_to_filters(InputStream *ist, AVFrame *decoded_frame)
Definition: ffmpeg.c:2304
int nb_input_streams
Definition: ffmpeg.c:149
static int64_t getmaxrss(void)
Definition: ffmpeg.c:4937
static void reset_eagain(void)
Definition: ffmpeg.c:4243
int nb_input_files
Definition: ffmpeg.c:151
static void finish_output_stream(OutputStream *ost)
Definition: ffmpeg.c:1483
static void parse_forced_key_frames(char *kf, OutputStream *ost, AVCodecContext *avctx)
Definition: ffmpeg.c:3261
static OutputStream * choose_output(void)
Select the output stream to process.
Definition: ffmpeg.c:3941
FilterGraph ** filtergraphs
Definition: ffmpeg.c:158
static int compare_int64(const void *a, const void *b)
Definition: ffmpeg.c:3022
static unsigned dup_warning
Definition: ffmpeg.c:136
static int init_output_stream_wrapper(OutputStream *ost, AVFrame *frame, unsigned int fatal)
Definition: ffmpeg.c:983
static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output, int64_t *duration_pts, int eof, int *decode_failed)
Definition: ffmpeg.c:2392
static int ifilter_send_frame(InputFilter *ifilter, AVFrame *frame)
Definition: ffmpeg.c:2177
static void check_decode_result(InputStream *ist, int *got_output, int ret)
Definition: ffmpeg.c:2147
static void sub2video_heartbeat(InputStream *ist, int64_t pts)
Definition: ffmpeg.c:281
static int process_input(int file_index)
Definition: ffmpeg.c:4338
static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
Definition: ffmpeg.c:4955
static int seek_to_start(InputFile *ifile, AVFormatContext *is)
Definition: ffmpeg.c:4272
static volatile int ffmpeg_exited
Definition: ffmpeg.c:346
static int check_output_constraints(InputStream *ist, OutputStream *ost)
Definition: ffmpeg.c:2035
int nb_output_files
Definition: ffmpeg.c:156
static void write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost, int unqueue)
Definition: ffmpeg.c:729
static void set_encoder_id(OutputFile *of, OutputStream *ost)
Definition: ffmpeg.c:3220
static int64_t decode_error_stat[2]
Definition: ffmpeg.c:138
static int read_key(void)
Definition: ffmpeg.c:457
static int check_init_output_file(OutputFile *of, int file_index)
Definition: ffmpeg.c:3028
static void close_output_stream(OutputStream *ost)
Definition: ffmpeg.c:875
static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
Definition: ffmpeg.c:2939
#define SIGNAL(sig, func)
Definition: ffmpeg.c:404
void sub2video_update(InputStream *ist, int64_t heartbeat_pts, AVSubtitle *sub)
Definition: ffmpeg.c:241
static int init_output_stream(OutputStream *ost, AVFrame *frame, char *error, int error_len)
Definition: ffmpeg.c:3531
static int got_eagain(void)
Definition: ffmpeg.c:4234
static int want_sdp
Definition: ffmpeg.c:141
static int send_filter_eof(InputStream *ist)
Definition: ffmpeg.c:2602
static int decode_interrupt_cb(void *ctx)
Definition: ffmpeg.c:508
static void term_exit_sigsafe(void)
Definition: ffmpeg.c:329
static void sub2video_flush(InputStream *ist)
Definition: ffmpeg.c:313
static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h, AVSubtitleRect *r)
Definition: ffmpeg.c:192
void remove_avoptions(AVDictionary **a, AVDictionary *b)
Definition: ffmpeg.c:676
static int transcode_init(void)
Definition: ffmpeg.c:3729
static volatile int received_nb_signals
Definition: ffmpeg.c:344
InputStream ** input_streams
Definition: ffmpeg.c:148
static int64_t copy_ts_first_pts
Definition: ffmpeg.c:348
static FILE * vstats_file
Definition: ffmpeg.c:112
static void report_new_stream(int input_index, AVPacket *pkt)
Definition: ffmpeg.c:3714
static BenchmarkTimeStamps current_time
Definition: ffmpeg.c:143
static void abort_codec_experimental(const AVCodec *c, int encoder)
Definition: ffmpeg.c:694
static void update_benchmark(const char *fmt,...)
Definition: ffmpeg.c:699
static AVRational duration_max(int64_t tmp, int64_t *duration, AVRational tmp_time_base, AVRational time_base)
Definition: ffmpeg.c:4253
static void ffmpeg_cleanup(int ret)
Definition: ffmpeg.c:515
static double adjust_frame_pts_to_encoder_tb(OutputFile *of, OutputStream *ost, AVFrame *frame)
Definition: ffmpeg.c:936
static int transcode_step(void)
Run a single step of transcoding.
Definition: ffmpeg.c:4677
static int ifilter_has_all_input_formats(FilterGraph *fg)
Definition: ffmpeg.c:2166
static void close_all_output_streams(OutputStream *ost, OSTFinished this_stream, OSTFinished others)
Definition: ffmpeg.c:720
static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
Definition: ffmpeg.c:1702
static int init_output_stream_streamcopy(OutputStream *ost)
Definition: ffmpeg.c:3106
void term_init(void)
Definition: ffmpeg.c:408
static unsigned nb_output_dumped
Definition: ffmpeg.c:139
OutputStream ** output_streams
Definition: ffmpeg.c:153
static int get_input_packet(InputFile *f, AVPacket **pkt)
Definition: ffmpeg.c:4213
static void do_video_stats(OutputStream *ost, int frame_size)
Definition: ffmpeg.c:1440
const int program_birth_year
program birth year, defined by the program for show_banner()
Definition: ffmpeg.c:110
static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
Definition: ffmpeg.c:2052
OutputFile ** output_files
Definition: ffmpeg.c:155
static int sub2video_get_blank_frame(InputStream *ist)
Definition: ffmpeg.c:177
static void flush_encoders(void)
Definition: ffmpeg.c:1925
static void output_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost, int eof)
Definition: ffmpeg.c:897
static InputStream * get_input_stream(OutputStream *ost)
Definition: ffmpeg.c:3015
void assert_avoptions(AVDictionary *m)
Definition: ffmpeg.c:685
static int run_as_daemon
Definition: ffmpeg.c:134
static void init_encoder_time_base(OutputStream *ost, AVRational default_time_base)
Definition: ffmpeg.c:3324
static void ifilter_parameters_from_codecpar(InputFilter *ifilter, AVCodecParameters *par)
Definition: ffmpeg.c:1912
static int ifilter_send_eof(InputFilter *ifilter, int64_t pts)
Definition: ffmpeg.c:2254
static void sigterm_handler(int sig)
Definition: ffmpeg.c:351
static atomic_int transcode_init_done
Definition: ffmpeg.c:345
int hw_device_setup_for_encode(OutputStream *ost)
Definition: ffmpeg_hw.c:419
int debug_ts
Definition: ffmpeg_opt.c:166
@ HWACCEL_GENERIC
Definition: ffmpeg.h:61
@ HWACCEL_AUTO
Definition: ffmpeg.h:60
float max_error_rate
Definition: ffmpeg_opt.c:173
int ifilter_parameters_from_frame(InputFilter *ifilter, const AVFrame *frame)
int audio_volume
Definition: ffmpeg_opt.c:154
#define VSYNC_DROP
Definition: ffmpeg.h:54
char * sdp_filename
Definition: ffmpeg_opt.c:148
int print_stats
Definition: ffmpeg_opt.c:169
int stdin_interaction
Definition: ffmpeg_opt.c:171
int do_benchmark
Definition: ffmpeg_opt.c:159
int do_hex_dump
Definition: ffmpeg_opt.c:161
int frame_bits_per_raw_sample
Definition: ffmpeg_opt.c:172
float dts_error_threshold
Definition: ffmpeg_opt.c:152
int hwaccel_decode_init(AVCodecContext *avctx)
Definition: ffmpeg_hw.c:516
OSTFinished
Definition: ffmpeg.h:447
@ ENCODER_FINISHED
Definition: ffmpeg.h:448
@ MUXER_FINISHED
Definition: ffmpeg.h:449
#define VSYNC_CFR
Definition: ffmpeg.h:51
int abort_on_flags
Definition: ffmpeg_opt.c:168
float frame_drop_threshold
Definition: ffmpeg_opt.c:157
void show_usage(void)
Definition: ffmpeg_opt.c:3300
#define DECODING_FOR_FILTER
Definition: ffmpeg.h:307
int qp_hist
Definition: ffmpeg_opt.c:170
int hw_device_setup_for_decode(InputStream *ist)
Definition: ffmpeg_hw.c:303
#define VSYNC_AUTO
Definition: ffmpeg.h:49
void hw_device_free_all(void)
Definition: ffmpeg_hw.c:274
int vstats_version
Definition: ffmpeg_opt.c:176
char * vstats_filename
Definition: ffmpeg_opt.c:147
int audio_sync_method
Definition: ffmpeg_opt.c:155
int copy_tb
Definition: ffmpeg_opt.c:165
@ FKF_PREV_FORCED_N
Definition: ffmpeg.h:436
@ FKF_T
Definition: ffmpeg.h:438
@ FKF_PREV_FORCED_T
Definition: ffmpeg.h:437
@ FKF_N_FORCED
Definition: ffmpeg.h:435
@ FKF_N
Definition: ffmpeg.h:434
int ffmpeg_parse_options(int argc, char **argv)
#define ABORT_ON_FLAG_EMPTY_OUTPUT
Definition: ffmpeg.h:442
#define DECODING_FOR_OST
Definition: ffmpeg.h:306
int video_sync_method
Definition: ffmpeg_opt.c:156
float dts_delta_threshold
Definition: ffmpeg_opt.c:151
int64_t stats_period
Definition: ffmpeg_opt.c:178
int copy_ts
Definition: ffmpeg_opt.c:163
#define VSYNC_VSCFR
Definition: ffmpeg.h:53
int filtergraph_is_simple(FilterGraph *fg)
int do_benchmark_all
Definition: ffmpeg_opt.c:160
#define VSYNC_PASSTHROUGH
Definition: ffmpeg.h:50
int configure_filtergraph(FilterGraph *fg)
const HWAccel hwaccels[]
Definition: ffmpeg_opt.c:136
#define VSYNC_VFR
Definition: ffmpeg.h:52
int exit_on_error
Definition: ffmpeg_opt.c:167
#define ABORT_ON_FLAG_EMPTY_OUTPUT_STREAM
Definition: ffmpeg.h:443
int do_pkt_dump
Definition: ffmpeg_opt.c:162
const OptionDef options[]
sample_rate
static int loop
Definition: ffplay.c:341
static int64_t start_time
Definition: ffplay.c:332
a very simple circular buffer FIFO implementation
static AVCodecContext * dec_ctx
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:1661
int av_opt_set_dict(void *obj, AVDictionary **options)
Set all the options from a given dictionary on an object.
Definition: opt.c:1656
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
@ AV_OPT_TYPE_FLAGS
Definition: opt.h:224
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.
int64_t av_get_default_channel_layout(int nb_channels)
Return default channel layout for a given number of channels.
void av_bsf_free(AVBSFContext **pctx)
Free a bitstream filter context and everything associated with it; write NULL into the supplied point...
Definition: bsf.c:40
int avcodec_parameters_from_context(AVCodecParameters *par, const AVCodecContext *codec)
Fill the parameters struct based on the values from the supplied codec context.
Definition: codec_par.c:90
int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Initialize the AVCodecContext to use the given AVCodec.
Definition: avcodec.c:144
#define AV_CODEC_FLAG_BITEXACT
Use only bitexact stuff (except (I)DCT).
Definition: avcodec.h:333
const char * avcodec_get_name(enum AVCodecID id)
Get the name of a codec.
Definition: utils.c:477
#define AV_CODEC_FLAG_PASS2
Use internal 2pass ratecontrol in second pass mode.
Definition: avcodec.h:300
int av_bsf_init(AVBSFContext *ctx)
Prepare the filter for use, after all the parameters and options have been set.
Definition: bsf.c:148
#define AV_CODEC_CAP_VARIABLE_FRAME_SIZE
Audio encoder supports receiving a different number of samples in each call.
Definition: codec.h:129
#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: codec.h:77
const AVCodecHWConfig * avcodec_get_hw_config(const AVCodec *codec, int index)
Retrieve supported hardware configurations for a codec.
Definition: utils.c:910
#define AV_CODEC_FLAG_INTERLACED_DCT
Use interlaced DCT.
Definition: avcodec.h:321
int av_bsf_receive_packet(AVBSFContext *ctx, AVPacket *pkt)
Retrieve a filtered packet.
Definition: bsf.c:227
#define AV_CODEC_FLAG_PASS1
Use internal 2pass ratecontrol in first pass mode.
Definition: avcodec.h:296
#define AV_CODEC_FLAG_INTERLACED_ME
interlaced motion estimation
Definition: avcodec.h:342
void avsubtitle_free(AVSubtitle *sub)
Free all allocated data in the given subtitle struct.
Definition: avcodec.c:551
int av_bsf_send_packet(AVBSFContext *ctx, AVPacket *pkt)
Submit a packet for filtering.
Definition: bsf.c:201
const AVCodecDescriptor * avcodec_descriptor_get(enum AVCodecID id)
Definition: codec_desc.c:3501
#define AV_CODEC_PROP_BITMAP_SUB
Subtitle codec is bitmap based Decoded AVSubtitle data can be read from the AVSubtitleRect->pict fiel...
Definition: codec_desc.h:97
#define AV_CODEC_FLAG_PSNR
error[?] variables will be set during encoding.
Definition: avcodec.h:312
int avcodec_parameters_to_context(AVCodecContext *codec, const AVCodecParameters *par)
Fill the codec context based on the values from the supplied codec parameters.
Definition: codec_par.c:147
#define AV_CODEC_CAP_PARAM_CHANGE
Codec supports changed parameters at any point.
Definition: codec.h:116
#define AV_CODEC_PROP_TEXT_SUB
Subtitle codec is text based.
Definition: codec_desc.h:102
av_cold int avcodec_close(AVCodecContext *avctx)
Close a given AVCodecContext and free all the data associated with it (but not the AVCodecContext its...
Definition: avcodec.c:570
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:188
@ AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX
The codec supports this format via the hw_device_ctx interface.
Definition: codec.h:411
@ SUBTITLE_BITMAP
A bitmap, pict will be set.
Definition: avcodec.h:2670
@ AV_CODEC_ID_DVB_SUBTITLE
Definition: codec_id.h:524
@ AV_CODEC_ID_H264
Definition: codec_id.h:76
@ AV_CODEC_ID_CODEC2
Definition: codec_id.h:491
@ AV_CODEC_ID_AC3
Definition: codec_id.h:427
@ AV_CODEC_ID_MPEG4
Definition: codec_id.h:61
@ AV_CODEC_ID_MJPEG
Definition: codec_id.h:56
@ AV_CODEC_ID_MP3
preferred ID for decoding MPEG audio layer 1, 2 or 3
Definition: codec_id.h:425
@ AV_CODEC_ID_VP9
Definition: codec_id.h:217
int avcodec_default_get_buffer2(AVCodecContext *s, AVFrame *frame, int flags)
The default callback for AVCodecContext.get_buffer2().
Definition: decode.c:1695
int avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame)
Return decoded output data from a decoder.
Definition: decode.c:652
int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub, int *got_sub_ptr, AVPacket *avpkt)
Decode a subtitle message.
Definition: decode.c:1034
int avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt)
Supply raw packet data as input to a decoder.
Definition: decode.c:589
int avcodec_receive_packet(AVCodecContext *avctx, AVPacket *avpkt)
Read encoded data from the encoder.
Definition: encode.c:395
int avcodec_send_frame(AVCodecContext *avctx, const AVFrame *frame)
Supply a raw video or audio frame to the encoder.
Definition: encode.c:364
@ AVDISCARD_ALL
discard all
Definition: avcodec.h:236
@ AVDISCARD_DEFAULT
discard useless packets like 0 size packets in avi
Definition: avcodec.h:231
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size, const AVSubtitle *sub)
Definition: encode.c:146
int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
Return audio frame duration.
Definition: utils.c:861
void avcodec_flush_buffers(AVCodecContext *avctx)
Reset the internal codec state / flush internal buffers.
Definition: avcodec.c:491
void av_packet_free(AVPacket **pkt)
Free the packet, if the packet is reference counted, it will be unreferenced first.
Definition: avpacket.c:75
#define AV_PKT_FLAG_CORRUPT
The packet content is corrupted.
Definition: packet.h:411
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.c:634
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: packet.h:410
int av_packet_make_refcounted(AVPacket *pkt)
Ensure the data described by a given packet is reference counted.
Definition: avpacket.c:696
void av_packet_move_ref(AVPacket *dst, AVPacket *src)
Move every field in src to dst and reset src.
Definition: avpacket.c:690
AVPacket * av_packet_alloc(void)
Allocate an AVPacket and set its fields to default values.
Definition: avpacket.c:64
int av_packet_ref(AVPacket *dst, const AVPacket *src)
Setup a new reference to the data described by a given packet.
Definition: avpacket.c:641
void av_packet_rescale_ts(AVPacket *pkt, AVRational src_tb, AVRational dst_tb)
Convert valid timing fields (timestamps / durations) in a packet from one timebase to another.
Definition: avpacket.c:737
@ AV_PKT_DATA_QUALITY_STATS
This side data contains quality related information from the encoder.
Definition: packet.h:132
@ AV_PKT_DATA_DISPLAYMATRIX
This side data contains a 3x3 transformation matrix describing an affine transformation that needs to...
Definition: packet.h:108
@ AV_PKT_DATA_CPB_PROPERTIES
This side data corresponds to the AVCPBProperties struct.
Definition: packet.h:145
void avdevice_register_all(void)
Initialize libavdevice and register all the input and output devices.
Definition: alldevices.c:66
uint8_t * av_stream_new_side_data(AVStream *stream, enum AVPacketSideDataType type, size_t size)
Allocate new information from stream.
int avformat_network_deinit(void)
Undo the initialization done by avformat_network_init.
Definition: utils.c:5068
int avformat_network_init(void)
Do global initialization of network libraries.
Definition: utils.c:5056
void avformat_free_context(AVFormatContext *s)
Free an AVFormatContext and all its streams.
Definition: utils.c:4436
int avformat_seek_file(AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags)
Seek to timestamp ts.
Definition: utils.c:2512
int av_read_frame(AVFormatContext *s, AVPacket *pkt)
Return the next frame of a stream.
Definition: utils.c:1741
void avformat_close_input(AVFormatContext **s)
Close an opened input AVFormatContext.
Definition: utils.c:4481
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:506
int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt)
Write a packet to an output media file ensuring correct interleaving.
Definition: mux.c:1259
int av_write_trailer(AVFormatContext *s)
Write the stream trailer to an output media file and free the file private data.
Definition: mux.c:1274
enum AVCodecID av_codec_get_id(const struct AVCodecTag *const *tags, unsigned int tag)
Get the AVCodecID for the given codec tag tag.
AVRational av_stream_get_codec_timebase(const AVStream *st)
Get the internal codec timebase from a stream.
Definition: utils.c:5850
int av_sdp_create(AVFormatContext *ac[], int n_files, char *buf, int size)
Generate an SDP for an RTP session.
Definition: sdp.c:846
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:115
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 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,...
Definition: dump.c:640
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:5778
enum AVMediaType av_buffersink_get_type(const AVFilterContext *ctx)
int av_buffersink_get_sample_rate(const AVFilterContext *ctx)
int av_buffersink_get_format(const AVFilterContext *ctx)
AVRational av_buffersink_get_frame_rate(const AVFilterContext *ctx)
uint64_t av_buffersink_get_channel_layout(const AVFilterContext *ctx)
int av_buffersink_get_h(const AVFilterContext *ctx)
AVRational av_buffersink_get_sample_aspect_ratio(const AVFilterContext *ctx)
AVRational av_buffersink_get_time_base(const AVFilterContext *ctx)
int av_buffersink_get_w(const AVFilterContext *ctx)
int av_buffersink_get_channels(const AVFilterContext *ctx)
void av_buffersink_set_frame_size(AVFilterContext *ctx, unsigned frame_size)
Set the frame size for an audio buffer sink.
Definition: buffersink.c:198
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:140
#define AV_BUFFERSINK_FLAG_NO_REQUEST
Tell av_buffersink_get_buffer_ref() not to request a frame from its input.
Definition: buffersink.h:96
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:166
int av_buffersrc_close(AVFilterContext *ctx, int64_t pts, unsigned flags)
Close the buffer source after EOF.
Definition: buffersrc.c:233
int attribute_align_arg av_buffersrc_add_frame(AVFilterContext *ctx, AVFrame *frame)
Add a frame to the buffer source.
Definition: buffersrc.c:147
unsigned av_buffersrc_get_nb_failed_requests(AVFilterContext *buffer_src)
Get the number of failed requests.
Definition: buffersrc.c:265
@ AV_BUFFERSRC_FLAG_KEEP_REF
Keep a reference to the frame.
Definition: buffersrc.h:53
@ AV_BUFFERSRC_FLAG_PUSH
Immediately push the frame to the output.
Definition: buffersrc.h:46
void avfilter_inout_free(AVFilterInOut **inout)
Free the supplied list of AVFilterInOut and set *inout to NULL.
Definition: graphparser.c:212
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.
void avfilter_graph_free(AVFilterGraph **graph)
Free a graph, destroy its links, and set *graph to NULL.
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 avfilter_graph_request_oldest(AVFilterGraph *graph)
Request a frame on the oldest sink link.
#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:701
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
AVBufferRef * av_buffer_ref(AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:93
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values.
Definition: dict.c:203
#define AV_DICT_IGNORE_SUFFIX
Return first entry in a dictionary whose first part corresponds to the search key,...
Definition: dict.h:70
#define AV_DICT_DONT_STRDUP_VAL
Take ownership of a value that's been allocated with av_malloc() or another memory allocation functio...
Definition: dict.h:74
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
#define AV_DICT_DONT_OVERWRITE
Don't overwrite existing entries.
Definition: dict.h:76
#define AV_DICT_MATCH_CASE
Only get an entry with exact-case key match.
Definition: dict.h:69
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
#define FF_QP2LAMBDA
factor to convert from H.263 QP to lambda
Definition: avutil.h:227
#define AVERROR_EXIT
Immediate exit was requested; the called function should not be restarted.
Definition: error.h:56
#define AVERROR_EXPERIMENTAL
Requested feature is flagged experimental. Set strict_std_compliance if you really want to use it.
Definition: error.h:72
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition: error.h:62
#define AVERROR_BUG
Internal bug, also see AVERROR_BUG2.
Definition: error.h:50
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
#define AVERROR_EOF
End of file.
Definition: error.h:55
#define av_err2str(errnum)
Convenience macro, the return value should be used only directly in function arguments but never stan...
Definition: error.h:119
#define AVERROR(e)
Definition: error.h:43
#define AV_FRAME_FLAG_CORRUPT
The frame data may be corrupted, e.g.
Definition: frame.h:543
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:553
void av_frame_remove_side_data(AVFrame *frame, enum AVFrameSideDataType type)
Remove and free all side data instances of the given type.
Definition: frame.c:812
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:540
int av_frame_get_buffer(AVFrame *frame, int align)
Allocate new buffer(s) for audio or video data.
Definition: frame.c:337
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:443
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:203
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:190
@ AV_FRAME_DATA_A53_CC
ATSC A53 Part 4 Closed Captions.
Definition: frame.h:58
#define AV_LOG_QUIET
Print no output.
Definition: log.h:176
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:215
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:200
#define AV_LOG_FATAL
Something went wrong and recovery is not possible.
Definition: log.h:188
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:210
#define AV_LOG_INFO
Standard information.
Definition: log.h:205
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:194
void av_log_set_callback(void(*callback)(void *, int, const char *, va_list))
Set the logging callback.
Definition: log.c:455
void av_log_set_level(int level)
Set the log level.
Definition: log.c:440
#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:384
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
int av_log_get_level(void)
Get the current log level.
Definition: log.c:435
void av_log_set_flags(int arg)
Definition: log.c:445
AVRational av_add_q(AVRational b, AVRational c)
Add two rationals.
Definition: rational.c:93
AVRational av_mul_q(AVRational b, AVRational c)
Multiply two rationals.
Definition: rational.c:80
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
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
static AVRational av_make_q(int num, int den)
Create an AVRational.
Definition: rational.h:71
static double av_q2d(AVRational a)
Convert an AVRational to a double.
Definition: rational.h:104
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
Definition: rational.h:159
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
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
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
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
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
@ AV_ROUND_PASS_MINMAX
Flag telling rescaling functions to pass INT64_MIN/MAX through unchanged, avoiding special cases for ...
Definition: mathematics.h:108
@ AV_ROUND_NEAR_INF
Round to nearest and halfway cases away from zero.
Definition: mathematics.h:84
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:237
void * av_realloc_array(void *ptr, size_t nmemb, size_t size)
Allocate, reallocate, or free an array.
Definition: mem.c:198
AVMediaType
Definition: avutil.h:199
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:71
@ AVMEDIA_TYPE_AUDIO
Definition: avutil.h:202
@ AVMEDIA_TYPE_SUBTITLE
Definition: avutil.h:204
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
@ AVMEDIA_TYPE_DATA
Opaque data information usually continuous.
Definition: avutil.h:203
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:83
@ AV_PICTURE_TYPE_I
Intra.
Definition: avutil.h:274
@ AV_PICTURE_TYPE_NONE
Undefined.
Definition: avutil.h:273
int av_get_bytes_per_sample(enum AVSampleFormat sample_fmt)
Return number of bytes per sample.
Definition: samplefmt.c:106
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
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 AV_NOPTS_VALUE
Undefined timestamp value.
Definition: avutil.h:248
#define AV_TIME_BASE
Internal time base represented as integer.
Definition: avutil.h:254
#define AV_TIME_BASE_Q
Internal time base represented as fractional value.
Definition: avutil.h:260
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
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
int av_opt_eval_flags(void *obj, const AVOption *o, const char *val, int *flags_out)
int index
Definition: gxfenc.c:89
for(j=16;j >0;--j)
const char * av_hwdevice_get_type_name(enum AVHWDeviceType type)
Get the string name of an AVHWDeviceType.
Definition: hwcontext.c:92
cl_device_type type
const char * key
misc image utilities
int i
Definition: input.c:407
#define av_log2
Definition: intmath.h:83
#define extra_bits(eb)
Definition: intrax8.c:125
const char * arg
Definition: jacosubdec.c:66
#define LIBAVCODEC_IDENT
Definition: version.h:42
void av_fifo_freep(AVFifoBuffer **f)
Free an AVFifoBuffer and reset pointer to NULL.
Definition: fifo.c:63
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
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
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
AVFifoBuffer * av_fifo_alloc(unsigned int size)
Initialize an AVFifoBuffer.
Definition: fifo.c:43
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
int av_fifo_realloc2(AVFifoBuffer *f, unsigned int new_size)
Resize an AVFifoBuffer.
Definition: fifo.c:87
common internal API header
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:309
Replacements for frequently missing libm functions.
#define llrint(x)
Definition: libm.h:394
#define llrintf(x)
Definition: libm.h:399
#define lrintf(x)
Definition: libm_mips.h:70
const char * desc
Definition: libsvtav1.c:79
uint8_t w
Definition: llviddspenc.c:39
#define NAN
Definition: mathematics.h:64
#define mid_pred
Definition: mathops.h:97
int frame_size
Definition: mxfenc.c:2206
AVOptions.
static av_always_inline int pthread_join(pthread_t thread, void **value_ptr)
Definition: os2threads.h:94
static av_always_inline int pthread_create(pthread_t *thread, const pthread_attr_t *attr, void *(*start_routine)(void *), void *arg)
Definition: os2threads.h:80
miscellaneous OS support macros and functions.
misc parsing utilities
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2573
#define AV_PIX_FMT_FLAG_HWACCEL
Pixel format is an HW accelerated format.
Definition: pixdesc.h:140
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
#define AV_PIX_FMT_RGB32
Definition: pixfmt.h:372
#define tb
Definition: regdef.h:68
#define FF_ARRAY_ELEMS(a)
#define vsnprintf
Definition: snprintf.h:36
#define snprintf
Definition: snprintf.h:34
The bitstream filter state.
Definition: bsf.h:49
uint8_t * data
The data buffer.
Definition: buffer.h:92
Describe the class of an AVClass context structure.
Definition: log.h:67
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
main external API structure.
Definition: avcodec.h:536
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:746
int width
picture width / height.
Definition: avcodec.h:709
char * stats_out
pass1 encoding statistics output buffer
Definition: avcodec.h:1557
enum AVSampleFormat sample_fmt
audio sample format
Definition: avcodec.h:1204
int debug
debug
Definition: avcodec.h:1623
int global_quality
Global quality for codecs which cannot change it per frame.
Definition: avcodec.h:602
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:1171
AVRational pkt_timebase
Timebase in which pkt_dts/pts and AVPacket.dts/pts are.
Definition: avcodec.h:2085
enum AVPixelFormat(* get_format)(struct AVCodecContext *s, const enum AVPixelFormat *fmt)
callback to negotiate the pixelFormat
Definition: avcodec.h:788
enum AVColorPrimaries color_primaries
Chromaticity coordinates of the source primaries.
Definition: avcodec.h:1150
enum AVMediaType codec_type
Definition: avcodec.h:544
AVRational framerate
Definition: avcodec.h:2071
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:915
int ticks_per_frame
For some codecs, the time base is closer to the field rate than the frame rate.
Definition: avcodec.h:668
enum AVFieldOrder field_order
Field order.
Definition: avcodec.h:1193
int has_b_frames
Size of the frame reordering buffer in the decoder.
Definition: avcodec.h:826
const struct AVCodec * codec
Definition: avcodec.h:545
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:1747
enum AVColorSpace colorspace
YUV colorspace type.
Definition: avcodec.h:1164
int sample_rate
samples per second
Definition: avcodec.h:1196
attribute_deprecated int thread_safe_callbacks
Set by the client if its custom get_buffer() callback can be called synchronously from another thread...
Definition: avcodec.h:1812
void * opaque
Private data of the user, can be used to carry app specific stuff.
Definition: avcodec.h:578
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
Definition: avcodec.h:1157
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented.
Definition: avcodec.h:659
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:616
int channels
number of audio channels
Definition: avcodec.h:1197
enum AVChromaLocation chroma_sample_location
This defines the location of chroma samples.
Definition: avcodec.h:1178
uint64_t error[AV_NUM_DATA_POINTERS]
error
Definition: avcodec.h:1699
enum AVCodecID codec_id
Definition: avcodec.h:546
uint64_t channel_layout
Audio channel layout.
Definition: avcodec.h:1247
int frame_size
Number of samples per channel in an audio frame.
Definition: avcodec.h:1216
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:1351
This struct describes the properties of a single codec described by an AVCodecID.
Definition: codec_desc.h:38
int props
Codec properties, a combination of AV_CODEC_PROP_* flags.
Definition: codec_desc.h:54
enum AVHWDeviceType device_type
The device type associated with the configuration.
Definition: codec.h:464
int methods
Bit set of AV_CODEC_HW_CONFIG_METHOD_* flags, describing the possible setup methods which can be used...
Definition: codec.h:457
enum AVPixelFormat pix_fmt
For decoders, a hardware pixel format which that decoder may be able to decode to if suitable hardwar...
Definition: codec.h:452
This struct describes the properties of an encoded stream.
Definition: codec_par.h:52
uint64_t channel_layout
Audio only.
Definition: codec_par.h:162
int channels
Audio only.
Definition: codec_par.h:166
int width
Video only.
Definition: codec_par.h:126
enum AVMediaType codec_type
General type of the encoded data.
Definition: codec_par.h:56
int block_align
Audio only.
Definition: codec_par.h:177
AVRational sample_aspect_ratio
Video only.
Definition: codec_par.h:136
int video_delay
Video only.
Definition: codec_par.h:155
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
Definition: codec_par.h:64
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition: codec_par.h:60
int sample_rate
Audio only.
Definition: codec_par.h:170
int repeat_pict
This field is used for proper frame duration computation in lavf.
Definition: avcodec.h:3395
AVCodec.
Definition: codec.h:197
enum AVCodecID id
Definition: codec.h:211
const AVCodecDefault * defaults
Private codec-specific defaults.
Definition: codec.h:266
enum AVMediaType type
Definition: codec.h:210
const char * name
Name of the codec implementation.
Definition: codec.h:204
int capabilities
Codec capabilities.
Definition: codec.h:216
int depth
Number of bits in the component.
Definition: pixdesc.h:58
char * key
Definition: dict.h:82
char * value
Definition: dict.h:83
An instance of a filter.
Definition: avfilter.h:341
Format I/O context.
Definition: avformat.h:1232
unsigned int nb_streams
Number of elements in AVFormatContext.streams.
Definition: avformat.h:1288
AVIOContext * pb
I/O context.
Definition: avformat.h:1274
AVIOInterruptCB interrupt_callback
Custom interrupt callbacks for the I/O layer.
Definition: avformat.h:1512
char * url
input or output URL.
Definition: avformat.h:1328
unsigned int nb_chapters
Number of chapters in AVChapter array.
Definition: avformat.h:1463
ff_const59 struct AVOutputFormat * oformat
The output container format.
Definition: avformat.h:1251
AVChapter ** chapters
Definition: avformat.h:1464
AVStream ** streams
A list of all streams in the file.
Definition: avformat.h:1300
This structure describes decoded (raw) audio or video data.
Definition: frame.h:318
int nb_samples
number of audio samples (per channel) described by this frame
Definition: frame.h:384
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:411
int64_t best_effort_timestamp
frame timestamp estimated using various heuristics, in stream time base
Definition: frame.h:582
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:332
enum AVChromaLocation chroma_location
Definition: frame.h:575
int width
Definition: frame.h:376
AVBufferRef * hw_frames_ctx
For hwaccel-format frames, this should be a reference to the AVHWFramesContext describing the frame.
Definition: frame.h:657
int key_frame
1 -> keyframe, 0-> not
Definition: frame.h:396
int64_t pkt_duration
duration of the corresponding packet, expressed in AVStream->time_base units, 0 if unknown.
Definition: frame.h:597
int decode_error_flags
decode error flags of the frame, set to a combination of FF_DECODE_ERROR_xxx flags if the decoder pro...
Definition: frame.h:613
int height
Definition: frame.h:376
int flags
Frame flags, a combination of AV_FRAME_FLAGS.
Definition: frame.h:555
int channels
number of audio channels, only used for audio.
Definition: frame.h:624
enum AVColorPrimaries color_primaries
Definition: frame.h:564
uint64_t channel_layout
Channel layout of the audio data.
Definition: frame.h:495
AVRational sample_aspect_ratio
Sample aspect ratio for the video frame, 0/1 if unknown/unspecified.
Definition: frame.h:406
int top_field_first
If the content is interlaced, is top field displayed first.
Definition: frame.h:470
int quality
quality (between 1 (good) and FF_LAMBDA_MAX (bad))
Definition: frame.h:441
int interlaced_frame
The content of the picture is interlaced.
Definition: frame.h:465
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: frame.h:562
enum AVColorSpace colorspace
YUV colorspace type.
Definition: frame.h:573
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:349
enum AVColorTransferCharacteristic color_trc
Definition: frame.h:566
int sample_rate
Sample rate of the audio data.
Definition: frame.h:490
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition: frame.h:391
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:401
Bytestream IO Context.
Definition: avio.h:161
Callback for checking whether to abort blocking functions.
Definition: avio.h:58
AVOption.
Definition: opt.h:248
int flags
can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_GLOBALHEADER, AVFMT_NOTIMESTAMPS,...
Definition: avformat.h:510
const char * name
Definition: avformat.h:491
const struct AVCodecTag *const * codec_tag
List of supported codec_id-codec_tag pairs, ordered by "better choice first".
Definition: avformat.h:516
uint8_t * data
Definition: packet.h:307
enum AVPacketSideDataType type
Definition: packet.h:313
size_t size
Definition: packet.h:311
This structure stores compressed data.
Definition: packet.h:346
int stream_index
Definition: packet.h:371
int flags
A combination of AV_PKT_FLAG values.
Definition: packet.h:375
int size
Definition: packet.h:370
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
Definition: packet.h:387
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: packet.h:362
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed.
Definition: packet.h:368
uint8_t * data
Definition: packet.h:369
int64_t pos
byte position in stream, -1 if unknown
Definition: packet.h:389
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
New fields can be added to the end with minor version bumps.
Definition: avformat.h:1150
unsigned int nb_stream_indexes
Definition: avformat.h:1155
unsigned int * stream_index
Definition: avformat.h:1154
enum AVDiscard discard
selects which program to discard and which to feed to the caller
Definition: avformat.h:1153
Rational number (pair of numerator and denominator).
Definition: rational.h:58
int num
Numerator.
Definition: rational.h:59
int den
Denominator.
Definition: rational.h:60
Stream structure.
Definition: avformat.h:873
AVPacketSideData * side_data
An array of side data that applies to the whole stream (i.e.
Definition: avformat.h:975
AVCodecParameters * codecpar
Codec parameters associated with this stream.
Definition: avformat.h:1038
int64_t first_dts
Timestamp corresponding to the last dts sync point.
Definition: avformat.h:1065
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown)
Definition: avformat.h:935
int64_t nb_frames
number of frames in this stream if known or 0
Definition: avformat.h:924
enum AVDiscard discard
Selects which packets can be discarded at will and do not need to be demuxed.
Definition: avformat.h:928
int64_t duration
Decoding: duration of the stream, in stream time base.
Definition: avformat.h:922
AVDictionary * metadata
Definition: avformat.h:937
int id
Format-specific stream ID.
Definition: avformat.h:880
int index
stream index in AVFormatContext
Definition: avformat.h:874
int pts_wrap_bits
number of bits in pts (used for wrapping control)
Definition: avformat.h:1055
int64_t start_time
Decoding: pts of the first frame of the stream in presentation order, in stream time base.
Definition: avformat.h:912
AVRational avg_frame_rate
Average framerate.
Definition: avformat.h:946
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented.
Definition: avformat.h:902
int nb_side_data
The number of elements in the AVStream.side_data array.
Definition: avformat.h:979
int64_t cur_dts
Definition: avformat.h:1066
AVRational r_frame_rate
Real base framerate of the stream.
Definition: avformat.h:1015
int disposition
AV_DISPOSITION_* bit field.
Definition: avformat.h:926
uint32_t end_display_time
Definition: avcodec.h:2725
unsigned num_rects
Definition: avcodec.h:2726
int64_t pts
Same as packet pts, in AV_TIME_BASE.
Definition: avcodec.h:2728
int64_t sys_usec
Definition: ffmpeg.c:126
int64_t real_usec
Definition: ffmpeg.c:124
int64_t user_usec
Definition: ffmpeg.c:125
int index
Definition: ffmpeg.h:288
int nb_outputs
Definition: ffmpeg.h:297
OutputFilter ** outputs
Definition: ffmpeg.h:296
int nb_inputs
Definition: ffmpeg.h:295
const char * graph_desc
Definition: ffmpeg.h:289
AVFilterGraph * graph
Definition: ffmpeg.h:291
InputFilter ** inputs
Definition: ffmpeg.h:294
Definition: ffmpeg.h:66
enum HWAccelID id
Definition: ffmpeg.h:69
int(* init)(AVCodecContext *s)
Definition: ffmpeg.h:68
const char * name
Definition: ffmpeg.h:67
int eagain
Definition: ffmpeg.h:403
int64_t ts_offset
Definition: ffmpeg.h:411
AVFormatContext * ctx
Definition: ffmpeg.h:401
int64_t input_ts_offset
Definition: ffmpeg.h:409
int eof_reached
Definition: ffmpeg.h:402
int nb_streams_warn
Definition: ffmpeg.h:418
int ist_index
Definition: ffmpeg.h:404
int nb_streams
Definition: ffmpeg.h:416
AVBufferRef * hw_frames_ctx
Definition: ffmpeg.h:259
uint8_t * name
Definition: ffmpeg.h:244
int sample_rate
Definition: ffmpeg.h:255
int height
Definition: ffmpeg.h:252
struct InputStream * ist
Definition: ffmpeg.h:242
AVFilterContext * filter
Definition: ffmpeg.h:241
enum AVMediaType type
Definition: ffmpeg.h:245
AVFifoBuffer * frame_queue
Definition: ffmpeg.h:247
uint64_t channel_layout
Definition: ffmpeg.h:257
struct FilterGraph * graph
Definition: ffmpeg.h:243
AVRational sample_aspect_ratio
Definition: ffmpeg.h:253
int eof
Definition: ffmpeg.h:261
int channels
Definition: ffmpeg.h:256
int format
Definition: ffmpeg.h:250
int width
Definition: ffmpeg.h:252
unsigned int initialize
marks if sub2video_update should force an initialization
Definition: ffmpeg.h:358
AVFifoBuffer * sub_queue
queue of AVSubtitle* before filter init
Definition: ffmpeg.h:355
enum AVPixelFormat hwaccel_pix_fmt
Definition: ffmpeg.h:381
int saw_first_ts
Definition: ffmpeg.h:337
double ts_scale
Definition: ffmpeg.h:336
AVFrame * decoded_frame
Definition: ffmpeg.h:311
int64_t * dts_buffer
Definition: ffmpeg.h:394
int64_t dts
dts of the last packet read for this stream (in AV_TIME_BASE units)
Definition: ffmpeg.h:319
int fix_sub_duration
Definition: ffmpeg.h:345
int64_t cfr_next_pts
Definition: ffmpeg.h:332
int got_output
Definition: ffmpeg.h:347
void(* hwaccel_uninit)(AVCodecContext *s)
Definition: ffmpeg.h:378
int nb_dts_buffer
Definition: ffmpeg.h:395
AVCodecContext * dec_ctx
Definition: ffmpeg.h:309
int64_t pts
current pts of the decoded frame (in AV_TIME_BASE units)
Definition: ffmpeg.h:322
AVBufferRef * hw_frames_ctx
Definition: ffmpeg.h:383
struct InputStream::@2 prev_sub
int64_t start
Definition: ffmpeg.h:315
int ret
Definition: ffmpeg.h:348
enum HWAccelID hwaccel_id
Definition: ffmpeg.h:371
uint64_t data_size
Definition: ffmpeg.h:387
int(* hwaccel_get_buffer)(AVCodecContext *s, AVFrame *frame, int flags)
Definition: ffmpeg.h:379
int nb_filters
Definition: ffmpeg.h:366
int64_t filter_in_rescale_delta_last
Definition: ffmpeg.h:325
int64_t next_dts
Definition: ffmpeg.h:318
int reinit_filters
Definition: ffmpeg.h:368
int wrap_correction_done
Definition: ffmpeg.h:323
int64_t max_pts
Definition: ffmpeg.h:328
enum AVPixelFormat hwaccel_retrieved_pix_fmt
Definition: ffmpeg.h:382
int guess_layout_max
Definition: ffmpeg.h:341
AVPacket * pkt
Definition: ffmpeg.h:313
AVFrame * filter_frame
Definition: ffmpeg.h:312
uint64_t samples_decoded
Definition: ffmpeg.h:392
int64_t next_pts
synthetic pts for the next decode frame (in AV_TIME_BASE units)
Definition: ffmpeg.h:321
int top_field_first
Definition: ffmpeg.h:340
int autorotate
Definition: ffmpeg.h:343
int discard
Definition: ffmpeg.h:303
uint64_t frames_decoded
Definition: ffmpeg.h:391
int decoding_needed
Definition: ffmpeg.h:305
struct InputStream::sub2video sub2video
AVStream * st
Definition: ffmpeg.h:302
int file_index
Definition: ffmpeg.h:301
InputFilter ** filters
Definition: ffmpeg.h:365
int(* hwaccel_retrieve_data)(AVCodecContext *s, AVFrame *frame)
Definition: ffmpeg.h:380
uint64_t nb_packets
Definition: ffmpeg.h:389
AVSubtitle subtitle
Definition: ffmpeg.h:349
char * hwaccel_device
Definition: ffmpeg.h:373
AVDictionary * decoder_opts
Definition: ffmpeg.h:338
int64_t min_pts
Definition: ffmpeg.h:327
const AVCodec * dec
Definition: ffmpeg.h:310
enum AVHWDeviceType hwaccel_device_type
Definition: ffmpeg.h:372
int64_t nb_samples
Definition: ffmpeg.h:334
AVRational framerate
Definition: ffmpeg.h:339
uint64_t limit_filesize
Definition: ffmpeg.h:581
AVFormatContext * ctx
Definition: ffmpeg.h:576
int header_written
Definition: ffmpeg.h:585
int64_t start_time
start time in microseconds == AV_TIME_BASE units
Definition: ffmpeg.h:580
AVDictionary * opts
Definition: ffmpeg.h:577
int ost_index
Definition: ffmpeg.h:578
int shortest
Definition: ffmpeg.h:583
int64_t recording_time
desired length of the resulting file in microseconds == AV_TIME_BASE units
Definition: ffmpeg.h:579
AVFilterInOut * out_tmp
Definition: ffmpeg.h:271
struct OutputStream * ost
Definition: ffmpeg.h:266
uint64_t * channel_layouts
Definition: ffmpeg.h:283
uint8_t * name
Definition: ffmpeg.h:268
int * sample_rates
Definition: ffmpeg.h:284
int * formats
Definition: ffmpeg.h:282
int source_index
Definition: ffmpeg.h:455
OSTFinished finished
Definition: ffmpeg.h:524
int unavailable
Definition: ffmpeg.h:525
AVCodecContext * enc_ctx
Definition: ffmpeg.h:474
uint8_t level
Definition: svq3.c:206
libswresample public header
#define av_malloc_array(a, b)
#define ff_dlog(a,...)
#define av_realloc_f(p, o, n)
#define av_freep(p)
#define av_malloc(s)
#define av_log(a,...)
static void error(const char *err)
static uint8_t tmp[11]
Definition: aes_ctr.c:27
#define src
Definition: vp8dsp.c:255
int64_t bitrate
Definition: h264_levels.c:131
FILE * out
Definition: movenc.c:54
int64_t duration
Definition: movenc.c:64
AVPacket * pkt
Definition: movenc.c:59
AVFormatContext * ctx
Definition: movenc.c:48
static void finish(void)
Definition: movenc.c:342
AVDictionary * opts
Definition: movenc.c:50
void av_thread_message_queue_set_err_send(AVThreadMessageQueue *mq, int err)
Set the sending error code.
int av_thread_message_queue_recv(AVThreadMessageQueue *mq, void *msg, unsigned flags)
Receive a message from the queue.
int av_thread_message_queue_alloc(AVThreadMessageQueue **mq, unsigned nelem, unsigned elsize)
Allocate a new message queue.
Definition: threadmessage.c:40
void av_thread_message_queue_set_err_recv(AVThreadMessageQueue *mq, int err)
Set the receiving error code.
int av_thread_message_queue_send(AVThreadMessageQueue *mq, void *msg, unsigned flags)
Send a message on the queue.
void av_thread_message_queue_free(AVThreadMessageQueue **mq)
Free a message queue.
Definition: threadmessage.c:91
@ AV_THREAD_MESSAGE_NONBLOCK
Perform non-blocking operation.
Definition: threadmessage.h:31
int av_usleep(unsigned usec)
Sleep for a period of time.
Definition: time.c:84
int64_t av_gettime_relative(void)
Get the current time in microseconds since some unspecified starting point.
Definition: time.c:56
timestamp utils, mostly useful for debugging/logging purposes
#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 av_ts2timestr(ts, tb)
Convenience macro, the return value should be used only directly in function arguments but never stan...
Definition: timestamp.h:76
static int64_t pts
int size
static AVStream * ost
const char * b
Definition: vf_curves.c:118
const char * r
Definition: vf_curves.c:116
static int command(AVFilterContext *ctx, const char *cmd, const char *arg, char *res, int res_len, int flags)
Definition: vf_drawtext.c:873
float delta
static double c[64]