FFmpeg
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ffmpeg.c
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1 /*
2  * Copyright (c) 2000-2003 Fabrice Bellard
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 /**
22  * @file
23  * multimedia converter based on the FFmpeg libraries
24  */
25 
26 #include "config.h"
27 #include <ctype.h>
28 #include <string.h>
29 #include <math.h>
30 #include <stdlib.h>
31 #include <errno.h>
32 #include <limits.h>
33 #include <stdint.h>
34 
35 #if HAVE_ISATTY
36 #if HAVE_IO_H
37 #include <io.h>
38 #endif
39 #if HAVE_UNISTD_H
40 #include <unistd.h>
41 #endif
42 #endif
43 
44 #include "libavformat/avformat.h"
45 #include "libavdevice/avdevice.h"
47 #include "libavutil/opt.h"
49 #include "libavutil/parseutils.h"
50 #include "libavutil/samplefmt.h"
51 #include "libavutil/fifo.h"
52 #include "libavutil/intreadwrite.h"
53 #include "libavutil/dict.h"
54 #include "libavutil/mathematics.h"
55 #include "libavutil/pixdesc.h"
56 #include "libavutil/avstring.h"
57 #include "libavutil/libm.h"
58 #include "libavutil/imgutils.h"
59 #include "libavutil/timestamp.h"
60 #include "libavutil/bprint.h"
61 #include "libavutil/time.h"
63 #include "libavformat/os_support.h"
64 
65 #include "libavformat/ffm.h" // not public API
66 
67 # include "libavfilter/avcodec.h"
68 # include "libavfilter/avfilter.h"
69 # include "libavfilter/buffersrc.h"
70 # include "libavfilter/buffersink.h"
71 
72 #if HAVE_SYS_RESOURCE_H
73 #include <sys/time.h>
74 #include <sys/types.h>
75 #include <sys/resource.h>
76 #elif HAVE_GETPROCESSTIMES
77 #include <windows.h>
78 #endif
79 #if HAVE_GETPROCESSMEMORYINFO
80 #include <windows.h>
81 #include <psapi.h>
82 #endif
83 
84 #if HAVE_SYS_SELECT_H
85 #include <sys/select.h>
86 #endif
87 
88 #if HAVE_TERMIOS_H
89 #include <fcntl.h>
90 #include <sys/ioctl.h>
91 #include <sys/time.h>
92 #include <termios.h>
93 #elif HAVE_KBHIT
94 #include <conio.h>
95 #endif
96 
97 #if HAVE_PTHREADS
98 #include <pthread.h>
99 #endif
100 
101 #include <time.h>
102 
103 #include "ffmpeg.h"
104 #include "cmdutils.h"
105 
106 #include "libavutil/avassert.h"
107 
108 const char program_name[] = "ffmpeg";
109 const int program_birth_year = 2000;
110 
111 static FILE *vstats_file;
112 
113 const char *const forced_keyframes_const_names[] = {
114  "n",
115  "n_forced",
116  "prev_forced_n",
117  "prev_forced_t",
118  "t",
119  NULL
120 };
121 
122 static void do_video_stats(OutputStream *ost, int frame_size);
123 static int64_t getutime(void);
124 static int64_t getmaxrss(void);
125 
126 static int run_as_daemon = 0;
127 static int nb_frames_dup = 0;
128 static int nb_frames_drop = 0;
129 static int64_t decode_error_stat[2];
130 
131 static int current_time;
133 
135 
136 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
137 
142 
147 
150 
151 #if HAVE_TERMIOS_H
152 
153 /* init terminal so that we can grab keys */
154 static struct termios oldtty;
155 static int restore_tty;
156 #endif
157 
158 static void free_input_threads(void);
159 
160 
161 /* sub2video hack:
162  Convert subtitles to video with alpha to insert them in filter graphs.
163  This is a temporary solution until libavfilter gets real subtitles support.
164  */
165 
167 {
168  int ret;
169  AVFrame *frame = ist->sub2video.frame;
170 
171  av_frame_unref(frame);
172  ist->sub2video.frame->width = ist->sub2video.w;
173  ist->sub2video.frame->height = ist->sub2video.h;
175  if ((ret = av_frame_get_buffer(frame, 32)) < 0)
176  return ret;
177  memset(frame->data[0], 0, frame->height * frame->linesize[0]);
178  return 0;
179 }
180 
181 static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h,
182  AVSubtitleRect *r)
183 {
184  uint32_t *pal, *dst2;
185  uint8_t *src, *src2;
186  int x, y;
187 
188  if (r->type != SUBTITLE_BITMAP) {
189  av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n");
190  return;
191  }
192  if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) {
193  av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle overflowing\n");
194  return;
195  }
196 
197  dst += r->y * dst_linesize + r->x * 4;
198  src = r->pict.data[0];
199  pal = (uint32_t *)r->pict.data[1];
200  for (y = 0; y < r->h; y++) {
201  dst2 = (uint32_t *)dst;
202  src2 = src;
203  for (x = 0; x < r->w; x++)
204  *(dst2++) = pal[*(src2++)];
205  dst += dst_linesize;
206  src += r->pict.linesize[0];
207  }
208 }
209 
210 static void sub2video_push_ref(InputStream *ist, int64_t pts)
211 {
212  AVFrame *frame = ist->sub2video.frame;
213  int i;
214 
215  av_assert1(frame->data[0]);
216  ist->sub2video.last_pts = frame->pts = pts;
217  for (i = 0; i < ist->nb_filters; i++)
221 }
222 
223 static void sub2video_update(InputStream *ist, AVSubtitle *sub)
224 {
225  int w = ist->sub2video.w, h = ist->sub2video.h;
226  AVFrame *frame = ist->sub2video.frame;
227  int8_t *dst;
228  int dst_linesize;
229  int num_rects, i;
230  int64_t pts, end_pts;
231 
232  if (!frame)
233  return;
234  if (sub) {
235  pts = av_rescale_q(sub->pts + sub->start_display_time * 1000LL,
236  AV_TIME_BASE_Q, ist->st->time_base);
237  end_pts = av_rescale_q(sub->pts + sub->end_display_time * 1000LL,
238  AV_TIME_BASE_Q, ist->st->time_base);
239  num_rects = sub->num_rects;
240  } else {
241  pts = ist->sub2video.end_pts;
242  end_pts = INT64_MAX;
243  num_rects = 0;
244  }
245  if (sub2video_get_blank_frame(ist) < 0) {
247  "Impossible to get a blank canvas.\n");
248  return;
249  }
250  dst = frame->data [0];
251  dst_linesize = frame->linesize[0];
252  for (i = 0; i < num_rects; i++)
253  sub2video_copy_rect(dst, dst_linesize, w, h, sub->rects[i]);
254  sub2video_push_ref(ist, pts);
255  ist->sub2video.end_pts = end_pts;
256 }
257 
258 static void sub2video_heartbeat(InputStream *ist, int64_t pts)
259 {
260  InputFile *infile = input_files[ist->file_index];
261  int i, j, nb_reqs;
262  int64_t pts2;
263 
264  /* When a frame is read from a file, examine all sub2video streams in
265  the same file and send the sub2video frame again. Otherwise, decoded
266  video frames could be accumulating in the filter graph while a filter
267  (possibly overlay) is desperately waiting for a subtitle frame. */
268  for (i = 0; i < infile->nb_streams; i++) {
269  InputStream *ist2 = input_streams[infile->ist_index + i];
270  if (!ist2->sub2video.frame)
271  continue;
272  /* subtitles seem to be usually muxed ahead of other streams;
273  if not, subtracting a larger time here is necessary */
274  pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
275  /* do not send the heartbeat frame if the subtitle is already ahead */
276  if (pts2 <= ist2->sub2video.last_pts)
277  continue;
278  if (pts2 >= ist2->sub2video.end_pts || !ist2->sub2video.frame->data[0])
279  sub2video_update(ist2, NULL);
280  for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
281  nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
282  if (nb_reqs)
283  sub2video_push_ref(ist2, pts2);
284  }
285 }
286 
287 static void sub2video_flush(InputStream *ist)
288 {
289  int i;
290 
291  if (ist->sub2video.end_pts < INT64_MAX)
292  sub2video_update(ist, NULL);
293  for (i = 0; i < ist->nb_filters; i++)
294  av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
295 }
296 
297 /* end of sub2video hack */
298 
299 static void term_exit_sigsafe(void)
300 {
301 #if HAVE_TERMIOS_H
302  if(restore_tty)
303  tcsetattr (0, TCSANOW, &oldtty);
304 #endif
305 }
306 
307 void term_exit(void)
308 {
309  av_log(NULL, AV_LOG_QUIET, "%s", "");
311 }
312 
313 static volatile int received_sigterm = 0;
314 static volatile int received_nb_signals = 0;
315 static volatile int transcode_init_done = 0;
316 static int main_return_code = 0;
317 
318 static void
320 {
321  received_sigterm = sig;
324  if(received_nb_signals > 3)
325  exit(123);
326 }
327 
328 void term_init(void)
329 {
330 #if HAVE_TERMIOS_H
331  if(!run_as_daemon){
332  struct termios tty;
333  int istty = 1;
334 #if HAVE_ISATTY
335  istty = isatty(0) && isatty(2);
336 #endif
337  if (istty && tcgetattr (0, &tty) == 0) {
338  oldtty = tty;
339  restore_tty = 1;
340 
341  tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
342  |INLCR|IGNCR|ICRNL|IXON);
343  tty.c_oflag |= OPOST;
344  tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
345  tty.c_cflag &= ~(CSIZE|PARENB);
346  tty.c_cflag |= CS8;
347  tty.c_cc[VMIN] = 1;
348  tty.c_cc[VTIME] = 0;
349 
350  tcsetattr (0, TCSANOW, &tty);
351  }
352  signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
353  }
354 #endif
356 
357  signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
358  signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
359 #ifdef SIGXCPU
360  signal(SIGXCPU, sigterm_handler);
361 #endif
362 }
363 
364 /* read a key without blocking */
365 static int read_key(void)
366 {
367  unsigned char ch;
368 #if HAVE_TERMIOS_H
369  int n = 1;
370  struct timeval tv;
371  fd_set rfds;
372 
373  FD_ZERO(&rfds);
374  FD_SET(0, &rfds);
375  tv.tv_sec = 0;
376  tv.tv_usec = 0;
377  n = select(1, &rfds, NULL, NULL, &tv);
378  if (n > 0) {
379  n = read(0, &ch, 1);
380  if (n == 1)
381  return ch;
382 
383  return n;
384  }
385 #elif HAVE_KBHIT
386 # if HAVE_PEEKNAMEDPIPE
387  static int is_pipe;
388  static HANDLE input_handle;
389  DWORD dw, nchars;
390  if(!input_handle){
391  input_handle = GetStdHandle(STD_INPUT_HANDLE);
392  is_pipe = !GetConsoleMode(input_handle, &dw);
393  }
394 
395  if (stdin->_cnt > 0) {
396  read(0, &ch, 1);
397  return ch;
398  }
399  if (is_pipe) {
400  /* When running under a GUI, you will end here. */
401  if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL)) {
402  // input pipe may have been closed by the program that ran ffmpeg
403  return -1;
404  }
405  //Read it
406  if(nchars != 0) {
407  read(0, &ch, 1);
408  return ch;
409  }else{
410  return -1;
411  }
412  }
413 # endif
414  if(kbhit())
415  return(getch());
416 #endif
417  return -1;
418 }
419 
420 static int decode_interrupt_cb(void *ctx)
421 {
423 }
424 
426 
427 static void ffmpeg_cleanup(int ret)
428 {
429  int i, j;
430 
431  if (do_benchmark) {
432  int maxrss = getmaxrss() / 1024;
433  printf("bench: maxrss=%ikB\n", maxrss);
434  }
435 
436  for (i = 0; i < nb_filtergraphs; i++) {
437  FilterGraph *fg = filtergraphs[i];
439  for (j = 0; j < fg->nb_inputs; j++) {
440  av_freep(&fg->inputs[j]->name);
441  av_freep(&fg->inputs[j]);
442  }
443  av_freep(&fg->inputs);
444  for (j = 0; j < fg->nb_outputs; j++) {
445  av_freep(&fg->outputs[j]->name);
446  av_freep(&fg->outputs[j]);
447  }
448  av_freep(&fg->outputs);
449  av_freep(&fg->graph_desc);
450 
451  av_freep(&filtergraphs[i]);
452  }
453  av_freep(&filtergraphs);
454 
456 
457  /* close files */
458  for (i = 0; i < nb_output_files; i++) {
459  OutputFile *of = output_files[i];
460  AVFormatContext *s = of->ctx;
461  if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE))
462  avio_closep(&s->pb);
464  av_dict_free(&of->opts);
465 
466  av_freep(&output_files[i]);
467  }
468  for (i = 0; i < nb_output_streams; i++) {
469  OutputStream *ost = output_streams[i];
471  while (bsfc) {
472  AVBitStreamFilterContext *next = bsfc->next;
474  bsfc = next;
475  }
476  ost->bitstream_filters = NULL;
478  av_frame_free(&ost->last_frame);
479 
480  av_parser_close(ost->parser);
481 
482  av_freep(&ost->forced_keyframes);
484  av_freep(&ost->avfilter);
485  av_freep(&ost->logfile_prefix);
486 
488  ost->audio_channels_mapped = 0;
489 
491 
492  av_freep(&output_streams[i]);
493  }
494 #if HAVE_PTHREADS
496 #endif
497  for (i = 0; i < nb_input_files; i++) {
498  avformat_close_input(&input_files[i]->ctx);
499  av_freep(&input_files[i]);
500  }
501  for (i = 0; i < nb_input_streams; i++) {
502  InputStream *ist = input_streams[i];
503 
506  av_dict_free(&ist->decoder_opts);
509  av_freep(&ist->filters);
510  av_freep(&ist->hwaccel_device);
511 
513 
514  av_freep(&input_streams[i]);
515  }
516 
517  if (vstats_file)
518  fclose(vstats_file);
520 
521  av_freep(&input_streams);
522  av_freep(&input_files);
523  av_freep(&output_streams);
524  av_freep(&output_files);
525 
526  uninit_opts();
527 
529 
530  if (received_sigterm) {
531  av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
532  (int) received_sigterm);
533  } else if (ret && transcode_init_done) {
534  av_log(NULL, AV_LOG_INFO, "Conversion failed!\n");
535  }
536  term_exit();
537 }
538 
540 {
541  AVDictionaryEntry *t = NULL;
542 
543  while ((t = av_dict_get(b, "", t, AV_DICT_IGNORE_SUFFIX))) {
544  av_dict_set(a, t->key, NULL, AV_DICT_MATCH_CASE);
545  }
546 }
547 
549 {
551  if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
552  av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
553  exit_program(1);
554  }
555 }
556 
557 static void abort_codec_experimental(AVCodec *c, int encoder)
558 {
559  exit_program(1);
560 }
561 
562 static void update_benchmark(const char *fmt, ...)
563 {
564  if (do_benchmark_all) {
565  int64_t t = getutime();
566  va_list va;
567  char buf[1024];
568 
569  if (fmt) {
570  va_start(va, fmt);
571  vsnprintf(buf, sizeof(buf), fmt, va);
572  va_end(va);
573  printf("bench: %8"PRIu64" %s \n", t - current_time, buf);
574  }
575  current_time = t;
576  }
577 }
578 
579 static void close_all_output_streams(OutputStream *ost, OSTFinished this_stream, OSTFinished others)
580 {
581  int i;
582  for (i = 0; i < nb_output_streams; i++) {
583  OutputStream *ost2 = output_streams[i];
584  ost2->finished |= ost == ost2 ? this_stream : others;
585  }
586 }
587 
589 {
591  AVCodecContext *avctx = ost->st->codec;
592  int ret;
593 
594  if (!ost->st->codec->extradata_size && ost->enc_ctx->extradata_size) {
596  if (ost->st->codec->extradata) {
597  memcpy(ost->st->codec->extradata, ost->enc_ctx->extradata, ost->enc_ctx->extradata_size);
599  }
600  }
601 
604  pkt->pts = pkt->dts = AV_NOPTS_VALUE;
605 
606  /*
607  * Audio encoders may split the packets -- #frames in != #packets out.
608  * But there is no reordering, so we can limit the number of output packets
609  * by simply dropping them here.
610  * Counting encoded video frames needs to be done separately because of
611  * reordering, see do_video_out()
612  */
613  if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
614  if (ost->frame_number >= ost->max_frames) {
615  av_free_packet(pkt);
616  return;
617  }
618  ost->frame_number++;
619  }
620 
621  if (bsfc)
623 
624  while (bsfc) {
625  AVPacket new_pkt = *pkt;
626  AVDictionaryEntry *bsf_arg = av_dict_get(ost->bsf_args,
627  bsfc->filter->name,
628  NULL, 0);
629  int a = av_bitstream_filter_filter(bsfc, avctx,
630  bsf_arg ? bsf_arg->value : NULL,
631  &new_pkt.data, &new_pkt.size,
632  pkt->data, pkt->size,
633  pkt->flags & AV_PKT_FLAG_KEY);
634  if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) {
635  uint8_t *t = av_malloc(new_pkt.size + FF_INPUT_BUFFER_PADDING_SIZE); //the new should be a subset of the old so cannot overflow
636  if(t) {
637  memcpy(t, new_pkt.data, new_pkt.size);
638  memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
639  new_pkt.data = t;
640  new_pkt.buf = NULL;
641  a = 1;
642  } else
643  a = AVERROR(ENOMEM);
644  }
645  if (a > 0) {
646  pkt->side_data = NULL;
647  pkt->side_data_elems = 0;
648  av_free_packet(pkt);
649  new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
650  av_buffer_default_free, NULL, 0);
651  if (!new_pkt.buf)
652  exit_program(1);
653  } else if (a < 0) {
654  av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
655  bsfc->filter->name, pkt->stream_index,
656  avctx->codec ? avctx->codec->name : "copy");
657  print_error("", a);
658  if (exit_on_error)
659  exit_program(1);
660  }
661  *pkt = new_pkt;
662 
663  bsfc = bsfc->next;
664  }
665 
666  if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS)) {
667  if (pkt->dts != AV_NOPTS_VALUE &&
668  pkt->pts != AV_NOPTS_VALUE &&
669  pkt->dts > pkt->pts) {
670  av_log(s, AV_LOG_WARNING, "Invalid DTS: %"PRId64" PTS: %"PRId64" in output stream %d:%d, replacing by guess\n",
671  pkt->dts, pkt->pts,
672  ost->file_index, ost->st->index);
673  pkt->pts =
674  pkt->dts = pkt->pts + pkt->dts + ost->last_mux_dts + 1
675  - FFMIN3(pkt->pts, pkt->dts, ost->last_mux_dts + 1)
676  - FFMAX3(pkt->pts, pkt->dts, ost->last_mux_dts + 1);
677  }
678  if(
679  (avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) &&
680  pkt->dts != AV_NOPTS_VALUE &&
681  ost->last_mux_dts != AV_NOPTS_VALUE) {
682  int64_t max = ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
683  if (pkt->dts < max) {
684  int loglevel = max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG;
685  av_log(s, loglevel, "Non-monotonous DTS in output stream "
686  "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
687  ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
688  if (exit_on_error) {
689  av_log(NULL, AV_LOG_FATAL, "aborting.\n");
690  exit_program(1);
691  }
692  av_log(s, loglevel, "changing to %"PRId64". This may result "
693  "in incorrect timestamps in the output file.\n",
694  max);
695  if(pkt->pts >= pkt->dts)
696  pkt->pts = FFMAX(pkt->pts, max);
697  pkt->dts = max;
698  }
699  }
700  }
701  ost->last_mux_dts = pkt->dts;
702 
703  ost->data_size += pkt->size;
704  ost->packets_written++;
705 
706  pkt->stream_index = ost->index;
707 
708  if (debug_ts) {
709  av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
710  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
712  av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
713  av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
714  pkt->size
715  );
716  }
717 
718  ret = av_interleaved_write_frame(s, pkt);
719  if (ret < 0) {
720  print_error("av_interleaved_write_frame()", ret);
721  main_return_code = 1;
723  }
724  av_free_packet(pkt);
725 }
726 
728 {
729  OutputFile *of = output_files[ost->file_index];
730 
731  ost->finished |= ENCODER_FINISHED;
732  if (of->shortest) {
733  int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, AV_TIME_BASE_Q);
734  of->recording_time = FFMIN(of->recording_time, end);
735  }
736 }
737 
739 {
740  OutputFile *of = output_files[ost->file_index];
741 
742  if (of->recording_time != INT64_MAX &&
744  AV_TIME_BASE_Q) >= 0) {
745  close_output_stream(ost);
746  return 0;
747  }
748  return 1;
749 }
750 
752  AVFrame *frame)
753 {
754  AVCodecContext *enc = ost->enc_ctx;
755  AVPacket pkt;
756  int got_packet = 0;
757 
758  av_init_packet(&pkt);
759  pkt.data = NULL;
760  pkt.size = 0;
761 
762  if (!check_recording_time(ost))
763  return;
764 
765  if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
766  frame->pts = ost->sync_opts;
767  ost->sync_opts = frame->pts + frame->nb_samples;
768  ost->samples_encoded += frame->nb_samples;
769  ost->frames_encoded++;
770 
771  av_assert0(pkt.size || !pkt.data);
772  update_benchmark(NULL);
773  if (debug_ts) {
774  av_log(NULL, AV_LOG_INFO, "encoder <- type:audio "
775  "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
776  av_ts2str(frame->pts), av_ts2timestr(frame->pts, &enc->time_base),
777  enc->time_base.num, enc->time_base.den);
778  }
779 
780  if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
781  av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
782  exit_program(1);
783  }
784  update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
785 
786  if (got_packet) {
787  av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
788 
789  if (debug_ts) {
790  av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
791  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
792  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
793  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
794  }
795 
796  write_frame(s, &pkt, ost);
797  }
798 }
799 
801  OutputStream *ost,
802  InputStream *ist,
803  AVSubtitle *sub)
804 {
805  int subtitle_out_max_size = 1024 * 1024;
806  int subtitle_out_size, nb, i;
807  AVCodecContext *enc;
808  AVPacket pkt;
809  int64_t pts;
810 
811  if (sub->pts == AV_NOPTS_VALUE) {
812  av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
813  if (exit_on_error)
814  exit_program(1);
815  return;
816  }
817 
818  enc = ost->enc_ctx;
819 
820  if (!subtitle_out) {
821  subtitle_out = av_malloc(subtitle_out_max_size);
822  if (!subtitle_out) {
823  av_log(NULL, AV_LOG_FATAL, "Failed to allocate subtitle_out\n");
824  exit_program(1);
825  }
826  }
827 
828  /* Note: DVB subtitle need one packet to draw them and one other
829  packet to clear them */
830  /* XXX: signal it in the codec context ? */
832  nb = 2;
833  else
834  nb = 1;
835 
836  /* shift timestamp to honor -ss and make check_recording_time() work with -t */
837  pts = sub->pts;
838  if (output_files[ost->file_index]->start_time != AV_NOPTS_VALUE)
839  pts -= output_files[ost->file_index]->start_time;
840  for (i = 0; i < nb; i++) {
841  unsigned save_num_rects = sub->num_rects;
842 
843  ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
844  if (!check_recording_time(ost))
845  return;
846 
847  sub->pts = pts;
848  // start_display_time is required to be 0
849  sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
851  sub->start_display_time = 0;
852  if (i == 1)
853  sub->num_rects = 0;
854 
855  ost->frames_encoded++;
856 
857  subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
858  subtitle_out_max_size, sub);
859  if (i == 1)
860  sub->num_rects = save_num_rects;
861  if (subtitle_out_size < 0) {
862  av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
863  exit_program(1);
864  }
865 
866  av_init_packet(&pkt);
867  pkt.data = subtitle_out;
868  pkt.size = subtitle_out_size;
869  pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
870  pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
871  if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
872  /* XXX: the pts correction is handled here. Maybe handling
873  it in the codec would be better */
874  if (i == 0)
875  pkt.pts += 90 * sub->start_display_time;
876  else
877  pkt.pts += 90 * sub->end_display_time;
878  }
879  pkt.dts = pkt.pts;
880  write_frame(s, &pkt, ost);
881  }
882 }
883 
885  OutputStream *ost,
886  AVFrame *next_picture,
887  double sync_ipts)
888 {
889  int ret, format_video_sync;
890  AVPacket pkt;
891  AVCodecContext *enc = ost->enc_ctx;
892  AVCodecContext *mux_enc = ost->st->codec;
893  int nb_frames, nb0_frames, i;
894  double delta, delta0;
895  double duration = 0;
896  int frame_size = 0;
897  InputStream *ist = NULL;
899 
900  if (ost->source_index >= 0)
901  ist = input_streams[ost->source_index];
902 
903  if (filter->inputs[0]->frame_rate.num > 0 &&
904  filter->inputs[0]->frame_rate.den > 0)
905  duration = 1/(av_q2d(filter->inputs[0]->frame_rate) * av_q2d(enc->time_base));
906 
907  if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
908  duration = FFMIN(duration, 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base)));
909 
910  if (!ost->filters_script &&
911  !ost->filters &&
912  next_picture &&
913  ist &&
914  lrintf(av_frame_get_pkt_duration(next_picture) * av_q2d(ist->st->time_base) / av_q2d(enc->time_base)) > 0) {
915  duration = lrintf(av_frame_get_pkt_duration(next_picture) * av_q2d(ist->st->time_base) / av_q2d(enc->time_base));
916  }
917 
918  delta0 = sync_ipts - ost->sync_opts;
919  delta = delta0 + duration;
920 
921  /* by default, we output a single frame */
922  nb0_frames = 0;
923  nb_frames = 1;
924 
925  format_video_sync = video_sync_method;
926  if (format_video_sync == VSYNC_AUTO) {
927  if(!strcmp(s->oformat->name, "avi")) {
928  format_video_sync = VSYNC_VFR;
929  } else
931  if ( ist
932  && format_video_sync == VSYNC_CFR
933  && input_files[ist->file_index]->ctx->nb_streams == 1
934  && input_files[ist->file_index]->input_ts_offset == 0) {
935  format_video_sync = VSYNC_VSCFR;
936  }
937  if (format_video_sync == VSYNC_CFR && copy_ts) {
938  format_video_sync = VSYNC_VSCFR;
939  }
940  }
941 
942  if (delta0 < 0 &&
943  delta > 0 &&
944  format_video_sync != VSYNC_PASSTHROUGH &&
945  format_video_sync != VSYNC_DROP) {
946  double cor = FFMIN(-delta0, duration);
947  if (delta0 < -0.6) {
948  av_log(NULL, AV_LOG_WARNING, "Past duration %f too large\n", -delta0);
949  } else
950  av_log(NULL, AV_LOG_DEBUG, "Cliping frame in rate conversion by %f\n", -delta0);
951  sync_ipts += cor;
952  duration -= cor;
953  delta0 += cor;
954  }
955 
956  switch (format_video_sync) {
957  case VSYNC_VSCFR:
958  if (ost->frame_number == 0 && delta - duration >= 0.5) {
959  av_log(NULL, AV_LOG_DEBUG, "Not duplicating %d initial frames\n", (int)lrintf(delta - duration));
960  delta = duration;
961  delta0 = 0;
962  ost->sync_opts = lrint(sync_ipts);
963  }
964  case VSYNC_CFR:
965  // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
966  if (delta < -1.1)
967  nb_frames = 0;
968  else if (delta > 1.1) {
969  nb_frames = lrintf(delta);
970  if (delta0 > 1.1)
971  nb0_frames = lrintf(delta0 - 0.6);
972  }
973  break;
974  case VSYNC_VFR:
975  if (delta <= -0.6)
976  nb_frames = 0;
977  else if (delta > 0.6)
978  ost->sync_opts = lrint(sync_ipts);
979  break;
980  case VSYNC_DROP:
981  case VSYNC_PASSTHROUGH:
982  ost->sync_opts = lrint(sync_ipts);
983  break;
984  default:
985  av_assert0(0);
986  }
987 
988  nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
989  nb0_frames = FFMIN(nb0_frames, nb_frames);
990  if (nb0_frames == 0 && ost->last_droped) {
991  nb_frames_drop++;
992  av_log(NULL, AV_LOG_VERBOSE,
993  "*** dropping frame %d from stream %d at ts %"PRId64"\n",
994  ost->frame_number, ost->st->index, ost->last_frame->pts);
995  }
996  if (nb_frames > (nb0_frames && ost->last_droped) + (nb_frames > nb0_frames)) {
997  if (nb_frames > dts_error_threshold * 30) {
998  av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
999  nb_frames_drop++;
1000  return;
1001  }
1002  nb_frames_dup += nb_frames - (nb0_frames && ost->last_droped) - (nb_frames > nb0_frames);
1003  av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
1004  }
1005  ost->last_droped = nb_frames == nb0_frames;
1006 
1007  /* duplicates frame if needed */
1008  for (i = 0; i < nb_frames; i++) {
1009  AVFrame *in_picture;
1010  av_init_packet(&pkt);
1011  pkt.data = NULL;
1012  pkt.size = 0;
1013 
1014  if (i < nb0_frames && ost->last_frame) {
1015  in_picture = ost->last_frame;
1016  } else
1017  in_picture = next_picture;
1018 
1019  in_picture->pts = ost->sync_opts;
1020 
1021 #if 1
1022  if (!check_recording_time(ost))
1023 #else
1024  if (ost->frame_number >= ost->max_frames)
1025 #endif
1026  return;
1027 
1028  if (s->oformat->flags & AVFMT_RAWPICTURE &&
1029  enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
1030  /* raw pictures are written as AVPicture structure to
1031  avoid any copies. We support temporarily the older
1032  method. */
1033  if (in_picture->interlaced_frame)
1034  mux_enc->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
1035  else
1036  mux_enc->field_order = AV_FIELD_PROGRESSIVE;
1037  pkt.data = (uint8_t *)in_picture;
1038  pkt.size = sizeof(AVPicture);
1039  pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
1040  pkt.flags |= AV_PKT_FLAG_KEY;
1041 
1042  write_frame(s, &pkt, ost);
1043  } else {
1044  int got_packet, forced_keyframe = 0;
1045  double pts_time;
1046 
1048  ost->top_field_first >= 0)
1049  in_picture->top_field_first = !!ost->top_field_first;
1050 
1051  if (in_picture->interlaced_frame) {
1052  if (enc->codec->id == AV_CODEC_ID_MJPEG)
1053  mux_enc->field_order = in_picture->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
1054  else
1055  mux_enc->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
1056  } else
1057  mux_enc->field_order = AV_FIELD_PROGRESSIVE;
1058 
1059  in_picture->quality = enc->global_quality;
1060  in_picture->pict_type = 0;
1061 
1062  pts_time = in_picture->pts != AV_NOPTS_VALUE ?
1063  in_picture->pts * av_q2d(enc->time_base) : NAN;
1064  if (ost->forced_kf_index < ost->forced_kf_count &&
1065  in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1066  ost->forced_kf_index++;
1067  forced_keyframe = 1;
1068  } else if (ost->forced_keyframes_pexpr) {
1069  double res;
1070  ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
1073  av_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
1079  res);
1080  if (res) {
1081  forced_keyframe = 1;
1087  }
1088 
1090  }
1091 
1092  if (forced_keyframe) {
1093  in_picture->pict_type = AV_PICTURE_TYPE_I;
1094  av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
1095  }
1096 
1097  update_benchmark(NULL);
1098  if (debug_ts) {
1099  av_log(NULL, AV_LOG_INFO, "encoder <- type:video "
1100  "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
1101  av_ts2str(in_picture->pts), av_ts2timestr(in_picture->pts, &enc->time_base),
1102  enc->time_base.num, enc->time_base.den);
1103  }
1104 
1105  ost->frames_encoded++;
1106 
1107  ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
1108  update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
1109  if (ret < 0) {
1110  av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1111  exit_program(1);
1112  }
1113 
1114  if (got_packet) {
1115  if (debug_ts) {
1116  av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
1117  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
1118  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &enc->time_base),
1119  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &enc->time_base));
1120  }
1121 
1122  if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
1123  pkt.pts = ost->sync_opts;
1124 
1125  av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
1126 
1127  if (debug_ts) {
1128  av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
1129  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
1130  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
1131  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
1132  }
1133 
1134  frame_size = pkt.size;
1135  write_frame(s, &pkt, ost);
1136 
1137  /* if two pass, output log */
1138  if (ost->logfile && enc->stats_out) {
1139  fprintf(ost->logfile, "%s", enc->stats_out);
1140  }
1141  }
1142  }
1143  ost->sync_opts++;
1144  /*
1145  * For video, number of frames in == number of packets out.
1146  * But there may be reordering, so we can't throw away frames on encoder
1147  * flush, we need to limit them here, before they go into encoder.
1148  */
1149  ost->frame_number++;
1150 
1151  if (vstats_filename && frame_size)
1152  do_video_stats(ost, frame_size);
1153  }
1154 
1155  if (!ost->last_frame)
1156  ost->last_frame = av_frame_alloc();
1157  av_frame_unref(ost->last_frame);
1158  av_frame_ref(ost->last_frame, next_picture);
1159 }
1160 
1161 static double psnr(double d)
1162 {
1163  return -10.0 * log(d) / log(10.0);
1164 }
1165 
1167 {
1168  AVCodecContext *enc;
1169  int frame_number;
1170  double ti1, bitrate, avg_bitrate;
1171 
1172  /* this is executed just the first time do_video_stats is called */
1173  if (!vstats_file) {
1174  vstats_file = fopen(vstats_filename, "w");
1175  if (!vstats_file) {
1176  perror("fopen");
1177  exit_program(1);
1178  }
1179  }
1180 
1181  enc = ost->enc_ctx;
1182  if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1183  frame_number = ost->st->nb_frames;
1184  fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1185  if (enc->flags&CODEC_FLAG_PSNR)
1186  fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1187 
1188  fprintf(vstats_file,"f_size= %6d ", frame_size);
1189  /* compute pts value */
1190  ti1 = av_stream_get_end_pts(ost->st) * av_q2d(ost->st->time_base);
1191  if (ti1 < 0.01)
1192  ti1 = 0.01;
1193 
1194  bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1195  avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
1196  fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1197  (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
1198  fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1199  }
1200 }
1201 
1203 {
1204  OutputFile *of = output_files[ost->file_index];
1205  int i;
1206 
1208 
1209  if (of->shortest) {
1210  for (i = 0; i < of->ctx->nb_streams; i++)
1211  output_streams[of->ost_index + i]->finished = ENCODER_FINISHED | MUXER_FINISHED;
1212  }
1213 }
1214 
1215 /**
1216  * Get and encode new output from any of the filtergraphs, without causing
1217  * activity.
1218  *
1219  * @return 0 for success, <0 for severe errors
1220  */
1221 static int reap_filters(void)
1222 {
1223  AVFrame *filtered_frame = NULL;
1224  int i;
1225 
1226  /* Reap all buffers present in the buffer sinks */
1227  for (i = 0; i < nb_output_streams; i++) {
1228  OutputStream *ost = output_streams[i];
1229  OutputFile *of = output_files[ost->file_index];
1231  AVCodecContext *enc = ost->enc_ctx;
1232  int ret = 0;
1233 
1234  if (!ost->filter)
1235  continue;
1236  filter = ost->filter->filter;
1237 
1238  if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
1239  return AVERROR(ENOMEM);
1240  }
1241  filtered_frame = ost->filtered_frame;
1242 
1243  while (1) {
1244  double float_pts = AV_NOPTS_VALUE; // this is identical to filtered_frame.pts but with higher precision
1245  ret = av_buffersink_get_frame_flags(filter, filtered_frame,
1247  if (ret < 0) {
1248  if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1249  av_log(NULL, AV_LOG_WARNING,
1250  "Error in av_buffersink_get_frame_flags(): %s\n", av_err2str(ret));
1251  }
1252  break;
1253  }
1254  if (ost->finished) {
1255  av_frame_unref(filtered_frame);
1256  continue;
1257  }
1258  if (filtered_frame->pts != AV_NOPTS_VALUE) {
1259  int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1260  AVRational tb = enc->time_base;
1261  int extra_bits = av_clip(29 - av_log2(tb.den), 0, 16);
1262 
1263  tb.den <<= extra_bits;
1264  float_pts =
1265  av_rescale_q(filtered_frame->pts, filter->inputs[0]->time_base, tb) -
1266  av_rescale_q(start_time, AV_TIME_BASE_Q, tb);
1267  float_pts /= 1 << extra_bits;
1268  // 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
1269  float_pts += FFSIGN(float_pts) * 1.0 / (1<<17);
1270 
1271  filtered_frame->pts =
1272  av_rescale_q(filtered_frame->pts, filter->inputs[0]->time_base, enc->time_base) -
1273  av_rescale_q(start_time, AV_TIME_BASE_Q, enc->time_base);
1274  }
1275  //if (ost->source_index >= 0)
1276  // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1277 
1278  switch (filter->inputs[0]->type) {
1279  case AVMEDIA_TYPE_VIDEO:
1280  if (!ost->frame_aspect_ratio.num)
1281  enc->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
1282 
1283  if (debug_ts) {
1284  av_log(NULL, AV_LOG_INFO, "filter -> pts:%s pts_time:%s exact:%f time_base:%d/%d\n",
1285  av_ts2str(filtered_frame->pts), av_ts2timestr(filtered_frame->pts, &enc->time_base),
1286  float_pts,
1287  enc->time_base.num, enc->time_base.den);
1288  }
1289 
1290  do_video_out(of->ctx, ost, filtered_frame, float_pts);
1291  break;
1292  case AVMEDIA_TYPE_AUDIO:
1293  if (!(enc->codec->capabilities & CODEC_CAP_PARAM_CHANGE) &&
1294  enc->channels != av_frame_get_channels(filtered_frame)) {
1295  av_log(NULL, AV_LOG_ERROR,
1296  "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
1297  break;
1298  }
1299  do_audio_out(of->ctx, ost, filtered_frame);
1300  break;
1301  default:
1302  // TODO support subtitle filters
1303  av_assert0(0);
1304  }
1305 
1306  av_frame_unref(filtered_frame);
1307  }
1308  }
1309 
1310  return 0;
1311 }
1312 
1313 static void print_final_stats(int64_t total_size)
1314 {
1315  uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
1316  uint64_t subtitle_size = 0;
1317  uint64_t data_size = 0;
1318  float percent = -1.0;
1319  int i, j;
1320 
1321  for (i = 0; i < nb_output_streams; i++) {
1322  OutputStream *ost = output_streams[i];
1323  switch (ost->enc_ctx->codec_type) {
1324  case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
1325  case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
1326  case AVMEDIA_TYPE_SUBTITLE: subtitle_size += ost->data_size; break;
1327  default: other_size += ost->data_size; break;
1328  }
1329  extra_size += ost->enc_ctx->extradata_size;
1330  data_size += ost->data_size;
1331  }
1332 
1333  if (data_size && total_size>0 && total_size >= data_size)
1334  percent = 100.0 * (total_size - data_size) / data_size;
1335 
1336  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: ",
1337  video_size / 1024.0,
1338  audio_size / 1024.0,
1339  subtitle_size / 1024.0,
1340  other_size / 1024.0,
1341  extra_size / 1024.0);
1342  if (percent >= 0.0)
1343  av_log(NULL, AV_LOG_INFO, "%f%%", percent);
1344  else
1345  av_log(NULL, AV_LOG_INFO, "unknown");
1346  av_log(NULL, AV_LOG_INFO, "\n");
1347 
1348  /* print verbose per-stream stats */
1349  for (i = 0; i < nb_input_files; i++) {
1350  InputFile *f = input_files[i];
1351  uint64_t total_packets = 0, total_size = 0;
1352 
1353  av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
1354  i, f->ctx->filename);
1355 
1356  for (j = 0; j < f->nb_streams; j++) {
1357  InputStream *ist = input_streams[f->ist_index + j];
1358  enum AVMediaType type = ist->dec_ctx->codec_type;
1359 
1360  total_size += ist->data_size;
1361  total_packets += ist->nb_packets;
1362 
1363  av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
1364  i, j, media_type_string(type));
1365  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
1366  ist->nb_packets, ist->data_size);
1367 
1368  if (ist->decoding_needed) {
1369  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
1370  ist->frames_decoded);
1371  if (type == AVMEDIA_TYPE_AUDIO)
1372  av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
1373  av_log(NULL, AV_LOG_VERBOSE, "; ");
1374  }
1375 
1376  av_log(NULL, AV_LOG_VERBOSE, "\n");
1377  }
1378 
1379  av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
1380  total_packets, total_size);
1381  }
1382 
1383  for (i = 0; i < nb_output_files; i++) {
1384  OutputFile *of = output_files[i];
1385  uint64_t total_packets = 0, total_size = 0;
1386 
1387  av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
1388  i, of->ctx->filename);
1389 
1390  for (j = 0; j < of->ctx->nb_streams; j++) {
1391  OutputStream *ost = output_streams[of->ost_index + j];
1392  enum AVMediaType type = ost->enc_ctx->codec_type;
1393 
1394  total_size += ost->data_size;
1395  total_packets += ost->packets_written;
1396 
1397  av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
1398  i, j, media_type_string(type));
1399  if (ost->encoding_needed) {
1400  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
1401  ost->frames_encoded);
1402  if (type == AVMEDIA_TYPE_AUDIO)
1403  av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
1404  av_log(NULL, AV_LOG_VERBOSE, "; ");
1405  }
1406 
1407  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
1408  ost->packets_written, ost->data_size);
1409 
1410  av_log(NULL, AV_LOG_VERBOSE, "\n");
1411  }
1412 
1413  av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
1414  total_packets, total_size);
1415  }
1416  if(video_size + data_size + audio_size + subtitle_size + extra_size == 0){
1417  av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
1418  }
1419 }
1420 
1421 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1422 {
1423  char buf[1024];
1424  AVBPrint buf_script;
1425  OutputStream *ost;
1426  AVFormatContext *oc;
1427  int64_t total_size;
1428  AVCodecContext *enc;
1429  int frame_number, vid, i;
1430  double bitrate;
1431  int64_t pts = INT64_MIN;
1432  static int64_t last_time = -1;
1433  static int qp_histogram[52];
1434  int hours, mins, secs, us;
1435 
1436  if (!print_stats && !is_last_report && !progress_avio)
1437  return;
1438 
1439  if (!is_last_report) {
1440  if (last_time == -1) {
1441  last_time = cur_time;
1442  return;
1443  }
1444  if ((cur_time - last_time) < 500000)
1445  return;
1446  last_time = cur_time;
1447  }
1448 
1449 
1450  oc = output_files[0]->ctx;
1451 
1452  total_size = avio_size(oc->pb);
1453  if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
1454  total_size = avio_tell(oc->pb);
1455 
1456  buf[0] = '\0';
1457  vid = 0;
1458  av_bprint_init(&buf_script, 0, 1);
1459  for (i = 0; i < nb_output_streams; i++) {
1460  float q = -1;
1461  ost = output_streams[i];
1462  enc = ost->enc_ctx;
1463  if (!ost->stream_copy && enc->coded_frame)
1464  q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1465  if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1466  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1467  av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1468  ost->file_index, ost->index, q);
1469  }
1470  if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1471  float fps, t = (cur_time-timer_start) / 1000000.0;
1472 
1473  frame_number = ost->frame_number;
1474  fps = t > 1 ? frame_number / t : 0;
1475  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
1476  frame_number, fps < 9.95, fps, q);
1477  av_bprintf(&buf_script, "frame=%d\n", frame_number);
1478  av_bprintf(&buf_script, "fps=%.1f\n", fps);
1479  av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1480  ost->file_index, ost->index, q);
1481  if (is_last_report)
1482  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1483  if (qp_hist) {
1484  int j;
1485  int qp = lrintf(q);
1486  if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1487  qp_histogram[qp]++;
1488  for (j = 0; j < 32; j++)
1489  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
1490  }
1491  if ((enc->flags&CODEC_FLAG_PSNR) && (enc->coded_frame || is_last_report)) {
1492  int j;
1493  double error, error_sum = 0;
1494  double scale, scale_sum = 0;
1495  double p;
1496  char type[3] = { 'Y','U','V' };
1497  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1498  for (j = 0; j < 3; j++) {
1499  if (is_last_report) {
1500  error = enc->error[j];
1501  scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1502  } else {
1503  error = enc->coded_frame->error[j];
1504  scale = enc->width * enc->height * 255.0 * 255.0;
1505  }
1506  if (j)
1507  scale /= 4;
1508  error_sum += error;
1509  scale_sum += scale;
1510  p = psnr(error / scale);
1511  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
1512  av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1513  ost->file_index, ost->index, type[j] | 32, p);
1514  }
1515  p = psnr(error_sum / scale_sum);
1516  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1517  av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1518  ost->file_index, ost->index, p);
1519  }
1520  vid = 1;
1521  }
1522  /* compute min output value */
1524  pts = FFMAX(pts, av_rescale_q(av_stream_get_end_pts(ost->st),
1525  ost->st->time_base, AV_TIME_BASE_Q));
1526  if (is_last_report)
1527  nb_frames_drop += ost->last_droped;
1528  }
1529 
1530  secs = pts / AV_TIME_BASE;
1531  us = pts % AV_TIME_BASE;
1532  mins = secs / 60;
1533  secs %= 60;
1534  hours = mins / 60;
1535  mins %= 60;
1536 
1537  bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
1538 
1539  if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1540  "size=N/A time=");
1541  else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1542  "size=%8.0fkB time=", total_size / 1024.0);
1543  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1544  "%02d:%02d:%02d.%02d ", hours, mins, secs,
1545  (100 * us) / AV_TIME_BASE);
1546 
1547  if (bitrate < 0) {
1548  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),"bitrate=N/A");
1549  av_bprintf(&buf_script, "bitrate=N/A\n");
1550  }else{
1551  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),"bitrate=%6.1fkbits/s", bitrate);
1552  av_bprintf(&buf_script, "bitrate=%6.1fkbits/s\n", bitrate);
1553  }
1554 
1555  if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
1556  else av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1557  av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1558  av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
1559  hours, mins, secs, us);
1560 
1562  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1564  av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1565  av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1566 
1567  if (print_stats || is_last_report) {
1568  const char end = is_last_report ? '\n' : '\r';
1569  if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
1570  fprintf(stderr, "%s %c", buf, end);
1571  } else
1572  av_log(NULL, AV_LOG_INFO, "%s %c", buf, end);
1573 
1574  fflush(stderr);
1575  }
1576 
1577  if (progress_avio) {
1578  av_bprintf(&buf_script, "progress=%s\n",
1579  is_last_report ? "end" : "continue");
1580  avio_write(progress_avio, buf_script.str,
1581  FFMIN(buf_script.len, buf_script.size - 1));
1582  avio_flush(progress_avio);
1583  av_bprint_finalize(&buf_script, NULL);
1584  if (is_last_report) {
1585  avio_closep(&progress_avio);
1586  }
1587  }
1588 
1589  if (is_last_report)
1590  print_final_stats(total_size);
1591 }
1592 
1593 static void flush_encoders(void)
1594 {
1595  int i, ret;
1596 
1597  for (i = 0; i < nb_output_streams; i++) {
1598  OutputStream *ost = output_streams[i];
1599  AVCodecContext *enc = ost->enc_ctx;
1600  AVFormatContext *os = output_files[ost->file_index]->ctx;
1601  int stop_encoding = 0;
1602 
1603  if (!ost->encoding_needed)
1604  continue;
1605 
1606  if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1607  continue;
1609  continue;
1610 
1611  for (;;) {
1612  int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1613  const char *desc;
1614 
1615  switch (enc->codec_type) {
1616  case AVMEDIA_TYPE_AUDIO:
1617  encode = avcodec_encode_audio2;
1618  desc = "Audio";
1619  break;
1620  case AVMEDIA_TYPE_VIDEO:
1621  encode = avcodec_encode_video2;
1622  desc = "Video";
1623  break;
1624  default:
1625  stop_encoding = 1;
1626  }
1627 
1628  if (encode) {
1629  AVPacket pkt;
1630  int pkt_size;
1631  int got_packet;
1632  av_init_packet(&pkt);
1633  pkt.data = NULL;
1634  pkt.size = 0;
1635 
1636  update_benchmark(NULL);
1637  ret = encode(enc, &pkt, NULL, &got_packet);
1638  update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
1639  if (ret < 0) {
1640  av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1641  exit_program(1);
1642  }
1643  if (ost->logfile && enc->stats_out) {
1644  fprintf(ost->logfile, "%s", enc->stats_out);
1645  }
1646  if (!got_packet) {
1647  stop_encoding = 1;
1648  break;
1649  }
1650  if (ost->finished & MUXER_FINISHED) {
1651  av_free_packet(&pkt);
1652  continue;
1653  }
1654  av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
1655  pkt_size = pkt.size;
1656  write_frame(os, &pkt, ost);
1658  do_video_stats(ost, pkt_size);
1659  }
1660  }
1661 
1662  if (stop_encoding)
1663  break;
1664  }
1665  }
1666 }
1667 
1668 /*
1669  * Check whether a packet from ist should be written into ost at this time
1670  */
1672 {
1673  OutputFile *of = output_files[ost->file_index];
1674  int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1675 
1676  if (ost->source_index != ist_index)
1677  return 0;
1678 
1679  if (ost->finished)
1680  return 0;
1681 
1682  if (of->start_time != AV_NOPTS_VALUE && ist->pts < of->start_time)
1683  return 0;
1684 
1685  return 1;
1686 }
1687 
1688 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1689 {
1690  OutputFile *of = output_files[ost->file_index];
1691  InputFile *f = input_files [ist->file_index];
1692  int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1693  int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1694  int64_t ist_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ist->st->time_base);
1695  AVPicture pict;
1696  AVPacket opkt;
1697 
1698  av_init_packet(&opkt);
1699 
1700  if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1702  return;
1703 
1704  if (pkt->pts == AV_NOPTS_VALUE) {
1705  if (!ost->frame_number && ist->pts < start_time &&
1706  !ost->copy_prior_start)
1707  return;
1708  } else {
1709  if (!ost->frame_number && pkt->pts < ist_tb_start_time &&
1710  !ost->copy_prior_start)
1711  return;
1712  }
1713 
1714  if (of->recording_time != INT64_MAX &&
1715  ist->pts >= of->recording_time + start_time) {
1716  close_output_stream(ost);
1717  return;
1718  }
1719 
1720  if (f->recording_time != INT64_MAX) {
1721  start_time = f->ctx->start_time;
1722  if (f->start_time != AV_NOPTS_VALUE)
1723  start_time += f->start_time;
1724  if (ist->pts >= f->recording_time + start_time) {
1725  close_output_stream(ost);
1726  return;
1727  }
1728  }
1729 
1730  /* force the input stream PTS */
1731  if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
1732  ost->sync_opts++;
1733 
1734  if (pkt->pts != AV_NOPTS_VALUE)
1735  opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1736  else
1737  opkt.pts = AV_NOPTS_VALUE;
1738 
1739  if (pkt->dts == AV_NOPTS_VALUE)
1740  opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
1741  else
1742  opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1743  opkt.dts -= ost_tb_start_time;
1744 
1745  if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
1747  if(!duration)
1748  duration = ist->dec_ctx->frame_size;
1749  opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
1751  ost->st->time_base) - ost_tb_start_time;
1752  }
1753 
1754  opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1755  opkt.flags = pkt->flags;
1756 
1757  // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1758  if ( ost->enc_ctx->codec_id != AV_CODEC_ID_H264
1759  && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG1VIDEO
1760  && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG2VIDEO
1761  && ost->enc_ctx->codec_id != AV_CODEC_ID_VC1
1762  ) {
1763  if (av_parser_change(ost->parser, ost->st->codec,
1764  &opkt.data, &opkt.size,
1765  pkt->data, pkt->size,
1766  pkt->flags & AV_PKT_FLAG_KEY)) {
1767  opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1768  if (!opkt.buf)
1769  exit_program(1);
1770  }
1771  } else {
1772  opkt.data = pkt->data;
1773  opkt.size = pkt->size;
1774  }
1775  av_copy_packet_side_data(&opkt, pkt);
1776 
1777  if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
1778  /* store AVPicture in AVPacket, as expected by the output format */
1779  avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1780  opkt.data = (uint8_t *)&pict;
1781  opkt.size = sizeof(AVPicture);
1782  opkt.flags |= AV_PKT_FLAG_KEY;
1783  }
1784 
1785  write_frame(of->ctx, &opkt, ost);
1786 }
1787 
1789 {
1790  AVCodecContext *dec = ist->dec_ctx;
1791 
1792  if (!dec->channel_layout) {
1793  char layout_name[256];
1794 
1795  if (dec->channels > ist->guess_layout_max)
1796  return 0;
1798  if (!dec->channel_layout)
1799  return 0;
1800  av_get_channel_layout_string(layout_name, sizeof(layout_name),
1801  dec->channels, dec->channel_layout);
1802  av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1803  "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1804  }
1805  return 1;
1806 }
1807 
1808 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1809 {
1810  AVFrame *decoded_frame, *f;
1811  AVCodecContext *avctx = ist->dec_ctx;
1812  int i, ret, err = 0, resample_changed;
1813  AVRational decoded_frame_tb;
1814 
1815  if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1816  return AVERROR(ENOMEM);
1817  if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1818  return AVERROR(ENOMEM);
1819  decoded_frame = ist->decoded_frame;
1820 
1821  update_benchmark(NULL);
1822  ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1823  update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
1824 
1825  if (ret >= 0 && avctx->sample_rate <= 0) {
1826  av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
1827  ret = AVERROR_INVALIDDATA;
1828  }
1829 
1830  if (*got_output || ret<0 || pkt->size)
1831  decode_error_stat[ret<0] ++;
1832 
1833  if (!*got_output || ret < 0) {
1834  if (!pkt->size) {
1835  for (i = 0; i < ist->nb_filters; i++)
1836 #if 1
1837  av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1838 #else
1839  av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1840 #endif
1841  }
1842  return ret;
1843  }
1844 
1845  ist->samples_decoded += decoded_frame->nb_samples;
1846  ist->frames_decoded++;
1847 
1848 #if 1
1849  /* increment next_dts to use for the case where the input stream does not
1850  have timestamps or there are multiple frames in the packet */
1851  ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1852  avctx->sample_rate;
1853  ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1854  avctx->sample_rate;
1855 #endif
1856 
1857  resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1858  ist->resample_channels != avctx->channels ||
1859  ist->resample_channel_layout != decoded_frame->channel_layout ||
1860  ist->resample_sample_rate != decoded_frame->sample_rate;
1861  if (resample_changed) {
1862  char layout1[64], layout2[64];
1863 
1864  if (!guess_input_channel_layout(ist)) {
1865  av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1866  "layout for Input Stream #%d.%d\n", ist->file_index,
1867  ist->st->index);
1868  exit_program(1);
1869  }
1870  decoded_frame->channel_layout = avctx->channel_layout;
1871 
1872  av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1874  av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1875  decoded_frame->channel_layout);
1876 
1877  av_log(NULL, AV_LOG_INFO,
1878  "Input stream #%d:%d frame changed from rate:%d fmt:%s ch:%d chl:%s to rate:%d fmt:%s ch:%d chl:%s\n",
1879  ist->file_index, ist->st->index,
1881  ist->resample_channels, layout1,
1882  decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1883  avctx->channels, layout2);
1884 
1885  ist->resample_sample_fmt = decoded_frame->format;
1886  ist->resample_sample_rate = decoded_frame->sample_rate;
1887  ist->resample_channel_layout = decoded_frame->channel_layout;
1888  ist->resample_channels = avctx->channels;
1889 
1890  for (i = 0; i < nb_filtergraphs; i++)
1891  if (ist_in_filtergraph(filtergraphs[i], ist)) {
1892  FilterGraph *fg = filtergraphs[i];
1893  if (configure_filtergraph(fg) < 0) {
1894  av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1895  exit_program(1);
1896  }
1897  }
1898  }
1899 
1900  /* if the decoder provides a pts, use it instead of the last packet pts.
1901  the decoder could be delaying output by a packet or more. */
1902  if (decoded_frame->pts != AV_NOPTS_VALUE) {
1903  ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
1904  decoded_frame_tb = avctx->time_base;
1905  } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
1906  decoded_frame->pts = decoded_frame->pkt_pts;
1907  decoded_frame_tb = ist->st->time_base;
1908  } else if (pkt->pts != AV_NOPTS_VALUE) {
1909  decoded_frame->pts = pkt->pts;
1910  decoded_frame_tb = ist->st->time_base;
1911  }else {
1912  decoded_frame->pts = ist->dts;
1913  decoded_frame_tb = AV_TIME_BASE_Q;
1914  }
1915  pkt->pts = AV_NOPTS_VALUE;
1916  if (decoded_frame->pts != AV_NOPTS_VALUE)
1917  decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
1918  (AVRational){1, avctx->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
1919  (AVRational){1, avctx->sample_rate});
1920  for (i = 0; i < ist->nb_filters; i++) {
1921  if (i < ist->nb_filters - 1) {
1922  f = ist->filter_frame;
1923  err = av_frame_ref(f, decoded_frame);
1924  if (err < 0)
1925  break;
1926  } else
1927  f = decoded_frame;
1928  err = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f,
1930  if (err == AVERROR_EOF)
1931  err = 0; /* ignore */
1932  if (err < 0)
1933  break;
1934  }
1935  decoded_frame->pts = AV_NOPTS_VALUE;
1936 
1937  av_frame_unref(ist->filter_frame);
1938  av_frame_unref(decoded_frame);
1939  return err < 0 ? err : ret;
1940 }
1941 
1942 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1943 {
1944  AVFrame *decoded_frame, *f;
1945  int i, ret = 0, err = 0, resample_changed;
1946  int64_t best_effort_timestamp;
1947  AVRational *frame_sample_aspect;
1948 
1949  if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1950  return AVERROR(ENOMEM);
1951  if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1952  return AVERROR(ENOMEM);
1953  decoded_frame = ist->decoded_frame;
1954  pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
1955 
1956  update_benchmark(NULL);
1957  ret = avcodec_decode_video2(ist->dec_ctx,
1958  decoded_frame, got_output, pkt);
1959  update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
1960 
1961  // The following line may be required in some cases where there is no parser
1962  // or the parser does not has_b_frames correctly
1963  if (ist->st->codec->has_b_frames < ist->dec_ctx->has_b_frames) {
1964  if (ist->dec_ctx->codec_id == AV_CODEC_ID_H264) {
1965  ist->st->codec->has_b_frames = ist->dec_ctx->has_b_frames;
1966  } else
1968  ist->dec_ctx,
1969  "has_b_frames is larger in decoder than demuxer %d > %d ",
1970  ist->dec_ctx->has_b_frames,
1971  ist->st->codec->has_b_frames
1972  );
1973  }
1974 
1975  if (*got_output || ret<0 || pkt->size)
1976  decode_error_stat[ret<0] ++;
1977 
1978  if (*got_output && ret >= 0) {
1979  if (ist->dec_ctx->width != decoded_frame->width ||
1980  ist->dec_ctx->height != decoded_frame->height ||
1981  ist->dec_ctx->pix_fmt != decoded_frame->format) {
1982  av_log(NULL, AV_LOG_DEBUG, "Frame parameters mismatch context %d,%d,%d != %d,%d,%d\n",
1983  decoded_frame->width,
1984  decoded_frame->height,
1985  decoded_frame->format,
1986  ist->dec_ctx->width,
1987  ist->dec_ctx->height,
1988  ist->dec_ctx->pix_fmt);
1989  }
1990  }
1991 
1992  if (!*got_output || ret < 0) {
1993  if (!pkt->size) {
1994  for (i = 0; i < ist->nb_filters; i++)
1995 #if 1
1996  av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1997 #else
1998  av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1999 #endif
2000  }
2001  return ret;
2002  }
2003 
2004  if(ist->top_field_first>=0)
2005  decoded_frame->top_field_first = ist->top_field_first;
2006 
2007  ist->frames_decoded++;
2008 
2009  if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
2010  err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
2011  if (err < 0)
2012  goto fail;
2013  }
2014  ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
2015 
2016  best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
2017  if(best_effort_timestamp != AV_NOPTS_VALUE)
2018  ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
2019 
2020  if (debug_ts) {
2021  av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
2022  "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",
2023  ist->st->index, av_ts2str(decoded_frame->pts),
2024  av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
2025  best_effort_timestamp,
2026  av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
2027  decoded_frame->key_frame, decoded_frame->pict_type,
2028  ist->st->time_base.num, ist->st->time_base.den);
2029  }
2030 
2031  pkt->size = 0;
2032 
2033  if (ist->st->sample_aspect_ratio.num)
2034  decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
2035 
2036  resample_changed = ist->resample_width != decoded_frame->width ||
2037  ist->resample_height != decoded_frame->height ||
2038  ist->resample_pix_fmt != decoded_frame->format;
2039  if (resample_changed) {
2040  av_log(NULL, AV_LOG_INFO,
2041  "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
2042  ist->file_index, ist->st->index,
2044  decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
2045 
2046  ist->resample_width = decoded_frame->width;
2047  ist->resample_height = decoded_frame->height;
2048  ist->resample_pix_fmt = decoded_frame->format;
2049 
2050  for (i = 0; i < nb_filtergraphs; i++) {
2051  if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters &&
2052  configure_filtergraph(filtergraphs[i]) < 0) {
2053  av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
2054  exit_program(1);
2055  }
2056  }
2057  }
2058 
2059  frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
2060  for (i = 0; i < ist->nb_filters; i++) {
2061  if (!frame_sample_aspect->num)
2062  *frame_sample_aspect = ist->st->sample_aspect_ratio;
2063 
2064  if (i < ist->nb_filters - 1) {
2065  f = ist->filter_frame;
2066  err = av_frame_ref(f, decoded_frame);
2067  if (err < 0)
2068  break;
2069  } else
2070  f = decoded_frame;
2072  if (ret == AVERROR_EOF) {
2073  ret = 0; /* ignore */
2074  } else if (ret < 0) {
2075  av_log(NULL, AV_LOG_FATAL,
2076  "Failed to inject frame into filter network: %s\n", av_err2str(ret));
2077  exit_program(1);
2078  }
2079  }
2080 
2081 fail:
2083  av_frame_unref(decoded_frame);
2084  return err < 0 ? err : ret;
2085 }
2086 
2087 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
2088 {
2089  AVSubtitle subtitle;
2090  int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
2091  &subtitle, got_output, pkt);
2092 
2093  if (*got_output || ret<0 || pkt->size)
2094  decode_error_stat[ret<0] ++;
2095 
2096  if (ret < 0 || !*got_output) {
2097  if (!pkt->size)
2098  sub2video_flush(ist);
2099  return ret;
2100  }
2101 
2102  if (ist->fix_sub_duration) {
2103  int end = 1;
2104  if (ist->prev_sub.got_output) {
2105  end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
2106  1000, AV_TIME_BASE);
2107  if (end < ist->prev_sub.subtitle.end_display_time) {
2108  av_log(ist->dec_ctx, AV_LOG_DEBUG,
2109  "Subtitle duration reduced from %d to %d%s\n",
2111  end <= 0 ? ", dropping it" : "");
2113  }
2114  }
2115  FFSWAP(int, *got_output, ist->prev_sub.got_output);
2116  FFSWAP(int, ret, ist->prev_sub.ret);
2117  FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
2118  if (end <= 0)
2119  goto out;
2120  }
2121 
2122  if (!*got_output)
2123  return ret;
2124 
2125  sub2video_update(ist, &subtitle);
2126 
2127  if (!subtitle.num_rects)
2128  goto out;
2129 
2130  ist->frames_decoded++;
2131 
2132  for (i = 0; i < nb_output_streams; i++) {
2133  OutputStream *ost = output_streams[i];
2134 
2135  if (!check_output_constraints(ist, ost) || !ost->encoding_needed
2136  || ost->enc->type != AVMEDIA_TYPE_SUBTITLE)
2137  continue;
2138 
2139  do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
2140  }
2141 
2142 out:
2143  avsubtitle_free(&subtitle);
2144  return ret;
2145 }
2146 
2147 /* pkt = NULL means EOF (needed to flush decoder buffers) */
2149 {
2150  int ret = 0, i;
2151  int got_output = 0;
2152 
2153  AVPacket avpkt;
2154  if (!ist->saw_first_ts) {
2155  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;
2156  ist->pts = 0;
2157  if (pkt && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
2158  ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
2159  ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
2160  }
2161  ist->saw_first_ts = 1;
2162  }
2163 
2164  if (ist->next_dts == AV_NOPTS_VALUE)
2165  ist->next_dts = ist->dts;
2166  if (ist->next_pts == AV_NOPTS_VALUE)
2167  ist->next_pts = ist->pts;
2168 
2169  if (!pkt) {
2170  /* EOF handling */
2171  av_init_packet(&avpkt);
2172  avpkt.data = NULL;
2173  avpkt.size = 0;
2174  goto handle_eof;
2175  } else {
2176  avpkt = *pkt;
2177  }
2178 
2179  if (pkt->dts != AV_NOPTS_VALUE) {
2180  ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
2181  if (ist->dec_ctx->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
2182  ist->next_pts = ist->pts = ist->dts;
2183  }
2184 
2185  // while we have more to decode or while the decoder did output something on EOF
2186  while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
2187  int duration;
2188  handle_eof:
2189 
2190  ist->pts = ist->next_pts;
2191  ist->dts = ist->next_dts;
2192 
2193  if (avpkt.size && avpkt.size != pkt->size &&
2194  !(ist->dec->capabilities & CODEC_CAP_SUBFRAMES)) {
2196  "Multiple frames in a packet from stream %d\n", pkt->stream_index);
2197  ist->showed_multi_packet_warning = 1;
2198  }
2199 
2200  switch (ist->dec_ctx->codec_type) {
2201  case AVMEDIA_TYPE_AUDIO:
2202  ret = decode_audio (ist, &avpkt, &got_output);
2203  break;
2204  case AVMEDIA_TYPE_VIDEO:
2205  ret = decode_video (ist, &avpkt, &got_output);
2206  if (avpkt.duration) {
2207  duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
2208  } else if(ist->dec_ctx->framerate.num != 0 && ist->dec_ctx->framerate.den != 0) {
2210  duration = ((int64_t)AV_TIME_BASE *
2211  ist->dec_ctx->framerate.den * ticks) /
2213  } else
2214  duration = 0;
2215 
2216  if(ist->dts != AV_NOPTS_VALUE && duration) {
2217  ist->next_dts += duration;
2218  }else
2219  ist->next_dts = AV_NOPTS_VALUE;
2220 
2221  if (got_output)
2222  ist->next_pts += duration; //FIXME the duration is not correct in some cases
2223  break;
2224  case AVMEDIA_TYPE_SUBTITLE:
2225  ret = transcode_subtitles(ist, &avpkt, &got_output);
2226  break;
2227  default:
2228  return -1;
2229  }
2230 
2231  if (ret < 0)
2232  return ret;
2233 
2234  avpkt.dts=
2235  avpkt.pts= AV_NOPTS_VALUE;
2236 
2237  // touch data and size only if not EOF
2238  if (pkt) {
2240  ret = avpkt.size;
2241  avpkt.data += ret;
2242  avpkt.size -= ret;
2243  }
2244  if (!got_output) {
2245  continue;
2246  }
2247  if (got_output && !pkt)
2248  break;
2249  }
2250 
2251  /* handle stream copy */
2252  if (!ist->decoding_needed) {
2253  ist->dts = ist->next_dts;
2254  switch (ist->dec_ctx->codec_type) {
2255  case AVMEDIA_TYPE_AUDIO:
2256  ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
2257  ist->dec_ctx->sample_rate;
2258  break;
2259  case AVMEDIA_TYPE_VIDEO:
2260  if (ist->framerate.num) {
2261  // TODO: Remove work-around for c99-to-c89 issue 7
2262  AVRational time_base_q = AV_TIME_BASE_Q;
2263  int64_t next_dts = av_rescale_q(ist->next_dts, time_base_q, av_inv_q(ist->framerate));
2264  ist->next_dts = av_rescale_q(next_dts + 1, av_inv_q(ist->framerate), time_base_q);
2265  } else if (pkt->duration) {
2266  ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
2267  } else if(ist->dec_ctx->framerate.num != 0) {
2268  int ticks= av_stream_get_parser(ist->st) ? av_stream_get_parser(ist->st)->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
2269  ist->next_dts += ((int64_t)AV_TIME_BASE *
2270  ist->dec_ctx->framerate.den * ticks) /
2272  }
2273  break;
2274  }
2275  ist->pts = ist->dts;
2276  ist->next_pts = ist->next_dts;
2277  }
2278  for (i = 0; pkt && i < nb_output_streams; i++) {
2279  OutputStream *ost = output_streams[i];
2280 
2281  if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2282  continue;
2283 
2284  do_streamcopy(ist, ost, pkt);
2285  }
2286 
2287  return got_output;
2288 }
2289 
2290 static void print_sdp(void)
2291 {
2292  char sdp[16384];
2293  int i;
2294  int j;
2295  AVIOContext *sdp_pb;
2296  AVFormatContext **avc = av_malloc_array(nb_output_files, sizeof(*avc));
2297 
2298  if (!avc)
2299  exit_program(1);
2300  for (i = 0, j = 0; i < nb_output_files; i++) {
2301  if (!strcmp(output_files[i]->ctx->oformat->name, "rtp")) {
2302  avc[j] = output_files[i]->ctx;
2303  j++;
2304  }
2305  }
2306 
2307  av_sdp_create(avc, j, sdp, sizeof(sdp));
2308 
2309  if (!sdp_filename) {
2310  printf("SDP:\n%s\n", sdp);
2311  fflush(stdout);
2312  } else {
2313  if (avio_open2(&sdp_pb, sdp_filename, AVIO_FLAG_WRITE, &int_cb, NULL) < 0) {
2314  av_log(NULL, AV_LOG_ERROR, "Failed to open sdp file '%s'\n", sdp_filename);
2315  } else {
2316  avio_printf(sdp_pb, "SDP:\n%s", sdp);
2317  avio_closep(&sdp_pb);
2319  }
2320  }
2321 
2322  av_freep(&avc);
2323 }
2324 
2326 {
2327  int i;
2328  for (i = 0; hwaccels[i].name; i++)
2329  if (hwaccels[i].pix_fmt == pix_fmt)
2330  return &hwaccels[i];
2331  return NULL;
2332 }
2333 
2334 static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
2335 {
2336  InputStream *ist = s->opaque;
2337  const enum AVPixelFormat *p;
2338  int ret;
2339 
2340  for (p = pix_fmts; *p != -1; p++) {
2341  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
2342  const HWAccel *hwaccel;
2343 
2344  if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
2345  break;
2346 
2347  hwaccel = get_hwaccel(*p);
2348  if (!hwaccel ||
2349  (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
2350  (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
2351  continue;
2352 
2353  ret = hwaccel->init(s);
2354  if (ret < 0) {
2355  if (ist->hwaccel_id == hwaccel->id) {
2356  av_log(NULL, AV_LOG_FATAL,
2357  "%s hwaccel requested for input stream #%d:%d, "
2358  "but cannot be initialized.\n", hwaccel->name,
2359  ist->file_index, ist->st->index);
2360  exit_program(1);
2361  }
2362  continue;
2363  }
2364  ist->active_hwaccel_id = hwaccel->id;
2365  ist->hwaccel_pix_fmt = *p;
2366  break;
2367  }
2368 
2369  return *p;
2370 }
2371 
2373 {
2374  InputStream *ist = s->opaque;
2375 
2376  if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
2377  return ist->hwaccel_get_buffer(s, frame, flags);
2378 
2379  return avcodec_default_get_buffer2(s, frame, flags);
2380 }
2381 
2382 static int init_input_stream(int ist_index, char *error, int error_len)
2383 {
2384  int ret;
2385  InputStream *ist = input_streams[ist_index];
2386 
2387  if (ist->decoding_needed) {
2388  AVCodec *codec = ist->dec;
2389  if (!codec) {
2390  snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
2391  avcodec_get_name(ist->dec_ctx->codec_id), ist->file_index, ist->st->index);
2392  return AVERROR(EINVAL);
2393  }
2394 
2395  ist->dec_ctx->opaque = ist;
2396  ist->dec_ctx->get_format = get_format;
2397  ist->dec_ctx->get_buffer2 = get_buffer;
2398  ist->dec_ctx->thread_safe_callbacks = 1;
2399 
2400  av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
2401  if (ist->dec_ctx->codec_id == AV_CODEC_ID_DVB_SUBTITLE &&
2402  (ist->decoding_needed & DECODING_FOR_OST)) {
2403  av_dict_set(&ist->decoder_opts, "compute_edt", "1", AV_DICT_DONT_OVERWRITE);
2405  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");
2406  }
2407 
2408  if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
2409  av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
2410  if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
2411  if (ret == AVERROR_EXPERIMENTAL)
2412  abort_codec_experimental(codec, 0);
2413 
2414  snprintf(error, error_len,
2415  "Error while opening decoder for input stream "
2416  "#%d:%d : %s",
2417  ist->file_index, ist->st->index, av_err2str(ret));
2418  return ret;
2419  }
2421  }
2422 
2423  ist->next_pts = AV_NOPTS_VALUE;
2424  ist->next_dts = AV_NOPTS_VALUE;
2425 
2426  return 0;
2427 }
2428 
2430 {
2431  if (ost->source_index >= 0)
2432  return input_streams[ost->source_index];
2433  return NULL;
2434 }
2435 
2436 static int compare_int64(const void *a, const void *b)
2437 {
2438  int64_t va = *(int64_t *)a, vb = *(int64_t *)b;
2439  return va < vb ? -1 : va > vb ? +1 : 0;
2440 }
2441 
2442 static void parse_forced_key_frames(char *kf, OutputStream *ost,
2443  AVCodecContext *avctx)
2444 {
2445  char *p;
2446  int n = 1, i, size, index = 0;
2447  int64_t t, *pts;
2448 
2449  for (p = kf; *p; p++)
2450  if (*p == ',')
2451  n++;
2452  size = n;
2453  pts = av_malloc_array(size, sizeof(*pts));
2454  if (!pts) {
2455  av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2456  exit_program(1);
2457  }
2458 
2459  p = kf;
2460  for (i = 0; i < n; i++) {
2461  char *next = strchr(p, ',');
2462 
2463  if (next)
2464  *next++ = 0;
2465 
2466  if (!memcmp(p, "chapters", 8)) {
2467 
2468  AVFormatContext *avf = output_files[ost->file_index]->ctx;
2469  int j;
2470 
2471  if (avf->nb_chapters > INT_MAX - size ||
2472  !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
2473  sizeof(*pts)))) {
2474  av_log(NULL, AV_LOG_FATAL,
2475  "Could not allocate forced key frames array.\n");
2476  exit_program(1);
2477  }
2478  t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
2479  t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2480 
2481  for (j = 0; j < avf->nb_chapters; j++) {
2482  AVChapter *c = avf->chapters[j];
2483  av_assert1(index < size);
2484  pts[index++] = av_rescale_q(c->start, c->time_base,
2485  avctx->time_base) + t;
2486  }
2487 
2488  } else {
2489 
2490  t = parse_time_or_die("force_key_frames", p, 1);
2491  av_assert1(index < size);
2492  pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2493 
2494  }
2495 
2496  p = next;
2497  }
2498 
2499  av_assert0(index == size);
2500  qsort(pts, size, sizeof(*pts), compare_int64);
2501  ost->forced_kf_count = size;
2502  ost->forced_kf_pts = pts;
2503 }
2504 
2505 static void report_new_stream(int input_index, AVPacket *pkt)
2506 {
2507  InputFile *file = input_files[input_index];
2508  AVStream *st = file->ctx->streams[pkt->stream_index];
2509 
2510  if (pkt->stream_index < file->nb_streams_warn)
2511  return;
2512  av_log(file->ctx, AV_LOG_WARNING,
2513  "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
2515  input_index, pkt->stream_index,
2516  pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
2517  file->nb_streams_warn = pkt->stream_index + 1;
2518 }
2519 
2521 {
2522  AVDictionaryEntry *e;
2523 
2524  uint8_t *encoder_string;
2525  int encoder_string_len;
2526  int format_flags = 0;
2527  int codec_flags = 0;
2528 
2529  if (av_dict_get(ost->st->metadata, "encoder", NULL, 0))
2530  return;
2531 
2532  e = av_dict_get(of->opts, "fflags", NULL, 0);
2533  if (e) {
2534  const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
2535  if (!o)
2536  return;
2537  av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
2538  }
2539  e = av_dict_get(ost->encoder_opts, "flags", NULL, 0);
2540  if (e) {
2541  const AVOption *o = av_opt_find(ost->enc_ctx, "flags", NULL, 0, 0);
2542  if (!o)
2543  return;
2544  av_opt_eval_flags(ost->enc_ctx, o, e->value, &codec_flags);
2545  }
2546 
2547  encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
2548  encoder_string = av_mallocz(encoder_string_len);
2549  if (!encoder_string)
2550  exit_program(1);
2551 
2552  if (!(format_flags & AVFMT_FLAG_BITEXACT) && !(codec_flags & CODEC_FLAG_BITEXACT))
2553  av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
2554  else
2555  av_strlcpy(encoder_string, "Lavc ", encoder_string_len);
2556  av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
2557  av_dict_set(&ost->st->metadata, "encoder", encoder_string,
2559 }
2560 
2561 static int transcode_init(void)
2562 {
2563  int ret = 0, i, j, k;
2564  AVFormatContext *oc;
2565  OutputStream *ost;
2566  InputStream *ist;
2567  char error[1024] = {0};
2568  int want_sdp = 1;
2569 
2570  for (i = 0; i < nb_filtergraphs; i++) {
2571  FilterGraph *fg = filtergraphs[i];
2572  for (j = 0; j < fg->nb_outputs; j++) {
2573  OutputFilter *ofilter = fg->outputs[j];
2574  if (!ofilter->ost || ofilter->ost->source_index >= 0)
2575  continue;
2576  if (fg->nb_inputs != 1)
2577  continue;
2578  for (k = nb_input_streams-1; k >= 0 ; k--)
2579  if (fg->inputs[0]->ist == input_streams[k])
2580  break;
2581  ofilter->ost->source_index = k;
2582  }
2583  }
2584 
2585  /* init framerate emulation */
2586  for (i = 0; i < nb_input_files; i++) {
2587  InputFile *ifile = input_files[i];
2588  if (ifile->rate_emu)
2589  for (j = 0; j < ifile->nb_streams; j++)
2590  input_streams[j + ifile->ist_index]->start = av_gettime_relative();
2591  }
2592 
2593  /* output stream init */
2594  for (i = 0; i < nb_output_files; i++) {
2595  oc = output_files[i]->ctx;
2596  if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2597  av_dump_format(oc, i, oc->filename, 1);
2598  av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2599  return AVERROR(EINVAL);
2600  }
2601  }
2602 
2603  /* init complex filtergraphs */
2604  for (i = 0; i < nb_filtergraphs; i++)
2605  if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2606  return ret;
2607 
2608  /* for each output stream, we compute the right encoding parameters */
2609  for (i = 0; i < nb_output_streams; i++) {
2610  AVCodecContext *enc_ctx;
2611  AVCodecContext *dec_ctx = NULL;
2612  ost = output_streams[i];
2613  oc = output_files[ost->file_index]->ctx;
2614  ist = get_input_stream(ost);
2615 
2616  if (ost->attachment_filename)
2617  continue;
2618 
2619  enc_ctx = ost->enc_ctx;
2620 
2621  if (ist) {
2622  dec_ctx = ist->dec_ctx;
2623 
2624  ost->st->disposition = ist->st->disposition;
2625  enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
2626  enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
2627  } else {
2628  for (j=0; j<oc->nb_streams; j++) {
2629  AVStream *st = oc->streams[j];
2630  if (st != ost->st && st->codec->codec_type == enc_ctx->codec_type)
2631  break;
2632  }
2633  if (j == oc->nb_streams)
2634  if (enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO || enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
2636  }
2637 
2638  if (ost->stream_copy) {
2639  AVRational sar;
2640  uint64_t extra_size;
2641 
2642  av_assert0(ist && !ost->filter);
2643 
2644  extra_size = (uint64_t)dec_ctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2645 
2646  if (extra_size > INT_MAX) {
2647  return AVERROR(EINVAL);
2648  }
2649 
2650  /* if stream_copy is selected, no need to decode or encode */
2651  enc_ctx->codec_id = dec_ctx->codec_id;
2652  enc_ctx->codec_type = dec_ctx->codec_type;
2653 
2654  if (!enc_ctx->codec_tag) {
2655  unsigned int codec_tag;
2656  if (!oc->oformat->codec_tag ||
2657  av_codec_get_id (oc->oformat->codec_tag, dec_ctx->codec_tag) == enc_ctx->codec_id ||
2658  !av_codec_get_tag2(oc->oformat->codec_tag, dec_ctx->codec_id, &codec_tag))
2659  enc_ctx->codec_tag = dec_ctx->codec_tag;
2660  }
2661 
2662  enc_ctx->bit_rate = dec_ctx->bit_rate;
2663  enc_ctx->rc_max_rate = dec_ctx->rc_max_rate;
2664  enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size;
2665  enc_ctx->field_order = dec_ctx->field_order;
2666  enc_ctx->extradata = av_mallocz(extra_size);
2667  if (!enc_ctx->extradata) {
2668  return AVERROR(ENOMEM);
2669  }
2670  memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
2671  enc_ctx->extradata_size= dec_ctx->extradata_size;
2672  enc_ctx->bits_per_coded_sample = dec_ctx->bits_per_coded_sample;
2673 
2674  enc_ctx->time_base = ist->st->time_base;
2675  /*
2676  * Avi is a special case here because it supports variable fps but
2677  * having the fps and timebase differe significantly adds quite some
2678  * overhead
2679  */
2680  if(!strcmp(oc->oformat->name, "avi")) {
2681  if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
2682  && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
2683  && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(dec_ctx->time_base)
2684  && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(dec_ctx->time_base) < 1.0/500
2685  || copy_tb==2){
2686  enc_ctx->time_base.num = ist->st->r_frame_rate.den;
2687  enc_ctx->time_base.den = 2*ist->st->r_frame_rate.num;
2688  enc_ctx->ticks_per_frame = 2;
2689  } else if ( copy_tb<0 && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > 2*av_q2d(ist->st->time_base)
2690  && av_q2d(ist->st->time_base) < 1.0/500
2691  || copy_tb==0){
2692  enc_ctx->time_base = dec_ctx->time_base;
2693  enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
2694  enc_ctx->time_base.den *= 2;
2695  enc_ctx->ticks_per_frame = 2;
2696  }
2697  } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
2698  && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
2699  && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
2700  && strcmp(oc->oformat->name, "f4v")
2701  ) {
2702  if( copy_tb<0 && dec_ctx->time_base.den
2703  && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > av_q2d(ist->st->time_base)
2704  && av_q2d(ist->st->time_base) < 1.0/500
2705  || copy_tb==0){
2706  enc_ctx->time_base = dec_ctx->time_base;
2707  enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
2708  }
2709  }
2710  if ( enc_ctx->codec_tag == AV_RL32("tmcd")
2711  && dec_ctx->time_base.num < dec_ctx->time_base.den
2712  && dec_ctx->time_base.num > 0
2713  && 121LL*dec_ctx->time_base.num > dec_ctx->time_base.den) {
2714  enc_ctx->time_base = dec_ctx->time_base;
2715  }
2716 
2717  if (ist && !ost->frame_rate.num)
2718  ost->frame_rate = ist->framerate;
2719  if(ost->frame_rate.num)
2720  enc_ctx->time_base = av_inv_q(ost->frame_rate);
2721 
2722  av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den,
2723  enc_ctx->time_base.num, enc_ctx->time_base.den, INT_MAX);
2724 
2725  if (ist->st->nb_side_data) {
2726  ost->st->side_data = av_realloc_array(NULL, ist->st->nb_side_data,
2727  sizeof(*ist->st->side_data));
2728  if (!ost->st->side_data)
2729  return AVERROR(ENOMEM);
2730 
2731  for (j = 0; j < ist->st->nb_side_data; j++) {
2732  const AVPacketSideData *sd_src = &ist->st->side_data[j];
2733  AVPacketSideData *sd_dst = &ost->st->side_data[j];
2734 
2735  sd_dst->data = av_malloc(sd_src->size);
2736  if (!sd_dst->data)
2737  return AVERROR(ENOMEM);
2738  memcpy(sd_dst->data, sd_src->data, sd_src->size);
2739  sd_dst->size = sd_src->size;
2740  sd_dst->type = sd_src->type;
2741  ost->st->nb_side_data++;
2742  }
2743  }
2744 
2745  ost->parser = av_parser_init(enc_ctx->codec_id);
2746 
2747  switch (enc_ctx->codec_type) {
2748  case AVMEDIA_TYPE_AUDIO:
2749  if (audio_volume != 256) {
2750  av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2751  exit_program(1);
2752  }
2753  enc_ctx->channel_layout = dec_ctx->channel_layout;
2754  enc_ctx->sample_rate = dec_ctx->sample_rate;
2755  enc_ctx->channels = dec_ctx->channels;
2756  enc_ctx->frame_size = dec_ctx->frame_size;
2757  enc_ctx->audio_service_type = dec_ctx->audio_service_type;
2758  enc_ctx->block_align = dec_ctx->block_align;
2759  enc_ctx->initial_padding = dec_ctx->delay;
2760 #if FF_API_AUDIOENC_DELAY
2761  enc_ctx->delay = dec_ctx->delay;
2762 #endif
2763  if((enc_ctx->block_align == 1 || enc_ctx->block_align == 1152 || enc_ctx->block_align == 576) && enc_ctx->codec_id == AV_CODEC_ID_MP3)
2764  enc_ctx->block_align= 0;
2765  if(enc_ctx->codec_id == AV_CODEC_ID_AC3)
2766  enc_ctx->block_align= 0;
2767  break;
2768  case AVMEDIA_TYPE_VIDEO:
2769  enc_ctx->pix_fmt = dec_ctx->pix_fmt;
2770  enc_ctx->width = dec_ctx->width;
2771  enc_ctx->height = dec_ctx->height;
2772  enc_ctx->has_b_frames = dec_ctx->has_b_frames;
2773  if (ost->frame_aspect_ratio.num) { // overridden by the -aspect cli option
2774  sar =
2776  (AVRational){ enc_ctx->height, enc_ctx->width });
2777  av_log(NULL, AV_LOG_WARNING, "Overriding aspect ratio "
2778  "with stream copy may produce invalid files\n");
2779  }
2780  else if (ist->st->sample_aspect_ratio.num)
2781  sar = ist->st->sample_aspect_ratio;
2782  else
2783  sar = dec_ctx->sample_aspect_ratio;
2784  ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio = sar;
2785  ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2786  ost->st->r_frame_rate = ist->st->r_frame_rate;
2787  break;
2788  case AVMEDIA_TYPE_SUBTITLE:
2789  enc_ctx->width = dec_ctx->width;
2790  enc_ctx->height = dec_ctx->height;
2791  break;
2792  case AVMEDIA_TYPE_DATA:
2794  break;
2795  default:
2796  abort();
2797  }
2798  } else {
2799  if (!ost->enc)
2800  ost->enc = avcodec_find_encoder(enc_ctx->codec_id);
2801  if (!ost->enc) {
2802  /* should only happen when a default codec is not present. */
2803  snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2804  avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2805  ret = AVERROR(EINVAL);
2806  goto dump_format;
2807  }
2808 
2809  if (ist)
2811  ost->encoding_needed = 1;
2812 
2813  set_encoder_id(output_files[ost->file_index], ost);
2814 
2815  if (!ost->filter &&
2816  (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
2817  enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO)) {
2818  FilterGraph *fg;
2819  fg = init_simple_filtergraph(ist, ost);
2820  if (configure_filtergraph(fg)) {
2821  av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2822  exit_program(1);
2823  }
2824  }
2825 
2826  if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
2827  if (ost->filter && !ost->frame_rate.num)
2829  if (ist && !ost->frame_rate.num)
2830  ost->frame_rate = ist->framerate;
2831  if (ist && !ost->frame_rate.num)
2832  ost->frame_rate = ist->st->r_frame_rate;
2833  if (ist && !ost->frame_rate.num) {
2834  ost->frame_rate = (AVRational){25, 1};
2835  av_log(NULL, AV_LOG_WARNING,
2836  "No information "
2837  "about the input framerate is available. Falling "
2838  "back to a default value of 25fps for output stream #%d:%d. Use the -r option "
2839  "if you want a different framerate.\n",
2840  ost->file_index, ost->index);
2841  }
2842 // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2843  if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2845  ost->frame_rate = ost->enc->supported_framerates[idx];
2846  }
2847  if (enc_ctx->codec_id == AV_CODEC_ID_MPEG4) {
2848  av_reduce(&ost->frame_rate.num, &ost->frame_rate.den,
2849  ost->frame_rate.num, ost->frame_rate.den, 65535);
2850  }
2851  }
2852 
2853  switch (enc_ctx->codec_type) {
2854  case AVMEDIA_TYPE_AUDIO:
2855  enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format;
2856  enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2857  enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2858  enc_ctx->channels = avfilter_link_get_channels(ost->filter->filter->inputs[0]);
2859  enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
2860  break;
2861  case AVMEDIA_TYPE_VIDEO:
2862  enc_ctx->time_base = av_inv_q(ost->frame_rate);
2863  if (ost->filter && !(enc_ctx->time_base.num && enc_ctx->time_base.den))
2864  enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
2865  if ( av_q2d(enc_ctx->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
2867  av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
2868  "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
2869  }
2870  for (j = 0; j < ost->forced_kf_count; j++)
2871  ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2873  enc_ctx->time_base);
2874 
2875  enc_ctx->width = ost->filter->filter->inputs[0]->w;
2876  enc_ctx->height = ost->filter->filter->inputs[0]->h;
2877  enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2878  ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option
2879  av_mul_q(ost->frame_aspect_ratio, (AVRational){ enc_ctx->height, enc_ctx->width }) :
2881  if (!strncmp(ost->enc->name, "libx264", 7) &&
2882  enc_ctx->pix_fmt == AV_PIX_FMT_NONE &&
2884  av_log(NULL, AV_LOG_WARNING,
2885  "No pixel format specified, %s for H.264 encoding chosen.\n"
2886  "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2888  if (!strncmp(ost->enc->name, "mpeg2video", 10) &&
2889  enc_ctx->pix_fmt == AV_PIX_FMT_NONE &&
2891  av_log(NULL, AV_LOG_WARNING,
2892  "No pixel format specified, %s for MPEG-2 encoding chosen.\n"
2893  "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2895  enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
2896 
2897  ost->st->avg_frame_rate = ost->frame_rate;
2898 
2899  if (!dec_ctx ||
2900  enc_ctx->width != dec_ctx->width ||
2901  enc_ctx->height != dec_ctx->height ||
2902  enc_ctx->pix_fmt != dec_ctx->pix_fmt) {
2903  enc_ctx->bits_per_raw_sample = frame_bits_per_raw_sample;
2904  }
2905 
2906  if (ost->forced_keyframes) {
2907  if (!strncmp(ost->forced_keyframes, "expr:", 5)) {
2909  forced_keyframes_const_names, NULL, NULL, NULL, NULL, 0, NULL);
2910  if (ret < 0) {
2911  av_log(NULL, AV_LOG_ERROR,
2912  "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5);
2913  return ret;
2914  }
2919  } else {
2921  }
2922  }
2923  break;
2924  case AVMEDIA_TYPE_SUBTITLE:
2925  enc_ctx->time_base = (AVRational){1, 1000};
2926  if (!enc_ctx->width) {
2927  enc_ctx->width = input_streams[ost->source_index]->st->codec->width;
2928  enc_ctx->height = input_streams[ost->source_index]->st->codec->height;
2929  }
2930  break;
2931  case AVMEDIA_TYPE_DATA:
2932  break;
2933  default:
2934  abort();
2935  break;
2936  }
2937  /* two pass mode */
2938  if (enc_ctx->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
2939  char logfilename[1024];
2940  FILE *f;
2941 
2942  snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2943  ost->logfile_prefix ? ost->logfile_prefix :
2945  i);
2946  if (!strcmp(ost->enc->name, "libx264")) {
2947  av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2948  } else {
2949  if (enc_ctx->flags & CODEC_FLAG_PASS2) {
2950  char *logbuffer;
2951  size_t logbuffer_size;
2952  if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2953  av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2954  logfilename);
2955  exit_program(1);
2956  }
2957  enc_ctx->stats_in = logbuffer;
2958  }
2959  if (enc_ctx->flags & CODEC_FLAG_PASS1) {
2960  f = av_fopen_utf8(logfilename, "wb");
2961  if (!f) {
2962  av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2963  logfilename, strerror(errno));
2964  exit_program(1);
2965  }
2966  ost->logfile = f;
2967  }
2968  }
2969  }
2970  }
2971 
2972  if (ost->disposition) {
2973  static const AVOption opts[] = {
2974  { "disposition" , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, INT64_MAX, .unit = "flags" },
2975  { "default" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DEFAULT }, .unit = "flags" },
2976  { "dub" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DUB }, .unit = "flags" },
2977  { "original" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_ORIGINAL }, .unit = "flags" },
2978  { "comment" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_COMMENT }, .unit = "flags" },
2979  { "lyrics" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_LYRICS }, .unit = "flags" },
2980  { "karaoke" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_KARAOKE }, .unit = "flags" },
2981  { "forced" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_FORCED }, .unit = "flags" },
2982  { "hearing_impaired" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_HEARING_IMPAIRED }, .unit = "flags" },
2983  { "visual_impaired" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_VISUAL_IMPAIRED }, .unit = "flags" },
2984  { "clean_effects" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_CLEAN_EFFECTS }, .unit = "flags" },
2985  { "captions" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_CAPTIONS }, .unit = "flags" },
2986  { "descriptions" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DESCRIPTIONS }, .unit = "flags" },
2987  { "metadata" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_METADATA }, .unit = "flags" },
2988  { NULL },
2989  };
2990  static const AVClass class = {
2991  .class_name = "",
2992  .item_name = av_default_item_name,
2993  .option = opts,
2994  .version = LIBAVUTIL_VERSION_INT,
2995  };
2996  const AVClass *pclass = &class;
2997 
2998  ret = av_opt_eval_flags(&pclass, &opts[0], ost->disposition, &ost->st->disposition);
2999  if (ret < 0)
3000  goto dump_format;
3001  }
3002  }
3003 
3004  /* open each encoder */
3005  for (i = 0; i < nb_output_streams; i++) {
3006  ost = output_streams[i];
3007  if (ost->encoding_needed) {
3008  AVCodec *codec = ost->enc;
3009  AVCodecContext *dec = NULL;
3010 
3011  if ((ist = get_input_stream(ost)))
3012  dec = ist->dec_ctx;
3013  if (dec && dec->subtitle_header) {
3014  /* ASS code assumes this buffer is null terminated so add extra byte. */
3015  ost->enc_ctx->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
3016  if (!ost->enc_ctx->subtitle_header) {
3017  ret = AVERROR(ENOMEM);
3018  goto dump_format;
3019  }
3020  memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
3021  ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
3022  }
3023  if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
3024  av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
3025  av_dict_set(&ost->encoder_opts, "side_data_only_packets", "1", 0);
3026 
3027  if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
3028  if (ret == AVERROR_EXPERIMENTAL)
3029  abort_codec_experimental(codec, 1);
3030  snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
3031  ost->file_index, ost->index);
3032  goto dump_format;
3033  }
3034  if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
3035  !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
3036  av_buffersink_set_frame_size(ost->filter->filter,
3037  ost->enc_ctx->frame_size);
3038  assert_avoptions(ost->encoder_opts);
3039  if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000)
3040  av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
3041  " It takes bits/s as argument, not kbits/s\n");
3042  } else {
3043  ret = av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts);
3044  if (ret < 0) {
3045  av_log(NULL, AV_LOG_FATAL,
3046  "Error setting up codec context options.\n");
3047  return ret;
3048  }
3049  }
3050 
3051  ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx);
3052  if (ret < 0) {
3053  av_log(NULL, AV_LOG_FATAL,
3054  "Error initializing the output stream codec context.\n");
3055  exit_program(1);
3056  }
3057  ost->st->codec->codec= ost->enc_ctx->codec;
3058 
3059  // copy timebase while removing common factors
3060  ost->st->time_base = av_add_q(ost->enc_ctx->time_base, (AVRational){0, 1});
3061  }
3062 
3063  /* init input streams */
3064  for (i = 0; i < nb_input_streams; i++)
3065  if ((ret = init_input_stream(i, error, sizeof(error))) < 0) {
3066  for (i = 0; i < nb_output_streams; i++) {
3067  ost = output_streams[i];
3068  avcodec_close(ost->enc_ctx);
3069  }
3070  goto dump_format;
3071  }
3072 
3073  /* discard unused programs */
3074  for (i = 0; i < nb_input_files; i++) {
3075  InputFile *ifile = input_files[i];
3076  for (j = 0; j < ifile->ctx->nb_programs; j++) {
3077  AVProgram *p = ifile->ctx->programs[j];
3078  int discard = AVDISCARD_ALL;
3079 
3080  for (k = 0; k < p->nb_stream_indexes; k++)
3081  if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
3082  discard = AVDISCARD_DEFAULT;
3083  break;
3084  }
3085  p->discard = discard;
3086  }
3087  }
3088 
3089  /* open files and write file headers */
3090  for (i = 0; i < nb_output_files; i++) {
3091  oc = output_files[i]->ctx;
3092  oc->interrupt_callback = int_cb;
3093  if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
3094  snprintf(error, sizeof(error),
3095  "Could not write header for output file #%d "
3096  "(incorrect codec parameters ?): %s",
3097  i, av_err2str(ret));
3098  ret = AVERROR(EINVAL);
3099  goto dump_format;
3100  }
3101 // assert_avoptions(output_files[i]->opts);
3102  if (strcmp(oc->oformat->name, "rtp")) {
3103  want_sdp = 0;
3104  }
3105  }
3106 
3107  dump_format:
3108  /* dump the file output parameters - cannot be done before in case
3109  of stream copy */
3110  for (i = 0; i < nb_output_files; i++) {
3111  av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
3112  }
3113 
3114  /* dump the stream mapping */
3115  av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
3116  for (i = 0; i < nb_input_streams; i++) {
3117  ist = input_streams[i];
3118 
3119  for (j = 0; j < ist->nb_filters; j++) {
3120  if (ist->filters[j]->graph->graph_desc) {
3121  av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
3122  ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
3123  ist->filters[j]->name);
3124  if (nb_filtergraphs > 1)
3125  av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
3126  av_log(NULL, AV_LOG_INFO, "\n");
3127  }
3128  }
3129  }
3130 
3131  for (i = 0; i < nb_output_streams; i++) {
3132  ost = output_streams[i];
3133 
3134  if (ost->attachment_filename) {
3135  /* an attached file */
3136  av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
3137  ost->attachment_filename, ost->file_index, ost->index);
3138  continue;
3139  }
3140 
3141  if (ost->filter && ost->filter->graph->graph_desc) {
3142  /* output from a complex graph */
3143  av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
3144  if (nb_filtergraphs > 1)
3145  av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
3146 
3147  av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
3148  ost->index, ost->enc ? ost->enc->name : "?");
3149  continue;
3150  }
3151 
3152  av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
3153  input_streams[ost->source_index]->file_index,
3154  input_streams[ost->source_index]->st->index,
3155  ost->file_index,
3156  ost->index);
3157  if (ost->sync_ist != input_streams[ost->source_index])
3158  av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
3159  ost->sync_ist->file_index,
3160  ost->sync_ist->st->index);
3161  if (ost->stream_copy)
3162  av_log(NULL, AV_LOG_INFO, " (copy)");
3163  else {
3164  const AVCodec *in_codec = input_streams[ost->source_index]->dec;
3165  const AVCodec *out_codec = ost->enc;
3166  const char *decoder_name = "?";
3167  const char *in_codec_name = "?";
3168  const char *encoder_name = "?";
3169  const char *out_codec_name = "?";
3170 
3171  if (in_codec) {
3172  decoder_name = in_codec->name;
3173  in_codec_name = avcodec_descriptor_get(in_codec->id)->name;
3174  if (!strcmp(decoder_name, in_codec_name))
3175  decoder_name = "native";
3176  }
3177 
3178  if (out_codec) {
3179  encoder_name = out_codec->name;
3180  out_codec_name = avcodec_descriptor_get(out_codec->id)->name;
3181  if (!strcmp(encoder_name, out_codec_name))
3182  encoder_name = "native";
3183  }
3184 
3185  av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
3186  in_codec_name, decoder_name,
3187  out_codec_name, encoder_name);
3188  }
3189  av_log(NULL, AV_LOG_INFO, "\n");
3190  }
3191 
3192  if (ret) {
3193  av_log(NULL, AV_LOG_ERROR, "%s\n", error);
3194  return ret;
3195  }
3196 
3197  if (sdp_filename || want_sdp) {
3198  print_sdp();
3199  }
3200 
3201  transcode_init_done = 1;
3202 
3203  return 0;
3204 }
3205 
3206 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
3207 static int need_output(void)
3208 {
3209  int i;
3210 
3211  for (i = 0; i < nb_output_streams; i++) {
3212  OutputStream *ost = output_streams[i];
3213  OutputFile *of = output_files[ost->file_index];
3214  AVFormatContext *os = output_files[ost->file_index]->ctx;
3215 
3216  if (ost->finished ||
3217  (os->pb && avio_tell(os->pb) >= of->limit_filesize))
3218  continue;
3219  if (ost->frame_number >= ost->max_frames) {
3220  int j;
3221  for (j = 0; j < of->ctx->nb_streams; j++)
3222  close_output_stream(output_streams[of->ost_index + j]);
3223  continue;
3224  }
3225 
3226  return 1;
3227  }
3228 
3229  return 0;
3230 }
3231 
3232 /**
3233  * Select the output stream to process.
3234  *
3235  * @return selected output stream, or NULL if none available
3236  */
3238 {
3239  int i;
3240  int64_t opts_min = INT64_MAX;
3241  OutputStream *ost_min = NULL;
3242 
3243  for (i = 0; i < nb_output_streams; i++) {
3244  OutputStream *ost = output_streams[i];
3245  int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
3246  AV_TIME_BASE_Q);
3247  if (!ost->finished && opts < opts_min) {
3248  opts_min = opts;
3249  ost_min = ost->unavailable ? NULL : ost;
3250  }
3251  }
3252  return ost_min;
3253 }
3254 
3256 {
3257  int i, ret, key;
3258  static int64_t last_time;
3259  if (received_nb_signals)
3260  return AVERROR_EXIT;
3261  /* read_key() returns 0 on EOF */
3262  if(cur_time - last_time >= 100000 && !run_as_daemon){
3263  key = read_key();
3264  last_time = cur_time;
3265  }else
3266  key = -1;
3267  if (key == 'q')
3268  return AVERROR_EXIT;
3269  if (key == '+') av_log_set_level(av_log_get_level()+10);
3270  if (key == '-') av_log_set_level(av_log_get_level()-10);
3271  if (key == 's') qp_hist ^= 1;
3272  if (key == 'h'){
3273  if (do_hex_dump){
3274  do_hex_dump = do_pkt_dump = 0;
3275  } else if(do_pkt_dump){
3276  do_hex_dump = 1;
3277  } else
3278  do_pkt_dump = 1;
3280  }
3281  if (key == 'c' || key == 'C'){
3282  char buf[4096], target[64], command[256], arg[256] = {0};
3283  double time;
3284  int k, n = 0;
3285  fprintf(stderr, "\nEnter command: <target>|all <time>|-1 <command>[ <argument>]\n");
3286  i = 0;
3287  while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
3288  if (k > 0)
3289  buf[i++] = k;
3290  buf[i] = 0;
3291  if (k > 0 &&
3292  (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
3293  av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
3294  target, time, command, arg);
3295  for (i = 0; i < nb_filtergraphs; i++) {
3296  FilterGraph *fg = filtergraphs[i];
3297  if (fg->graph) {
3298  if (time < 0) {
3299  ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
3300  key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
3301  fprintf(stderr, "Command reply for stream %d: ret:%d res:\n%s", i, ret, buf);
3302  } else if (key == 'c') {
3303  fprintf(stderr, "Queing commands only on filters supporting the specific command is unsupported\n");
3304  ret = AVERROR_PATCHWELCOME;
3305  } else {
3306  ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
3307  }
3308  }
3309  }
3310  } else {
3311  av_log(NULL, AV_LOG_ERROR,
3312  "Parse error, at least 3 arguments were expected, "
3313  "only %d given in string '%s'\n", n, buf);
3314  }
3315  }
3316  if (key == 'd' || key == 'D'){
3317  int debug=0;
3318  if(key == 'D') {
3319  debug = input_streams[0]->st->codec->debug<<1;
3320  if(!debug) debug = 1;
3321  while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
3322  debug += debug;
3323  }else
3324  if(scanf("%d", &debug)!=1)
3325  fprintf(stderr,"error parsing debug value\n");
3326  for(i=0;i<nb_input_streams;i++) {
3327  input_streams[i]->st->codec->debug = debug;
3328  }
3329  for(i=0;i<nb_output_streams;i++) {
3330  OutputStream *ost = output_streams[i];
3331  ost->enc_ctx->debug = debug;
3332  }
3333  if(debug) av_log_set_level(AV_LOG_DEBUG);
3334  fprintf(stderr,"debug=%d\n", debug);
3335  }
3336  if (key == '?'){
3337  fprintf(stderr, "key function\n"
3338  "? show this help\n"
3339  "+ increase verbosity\n"
3340  "- decrease verbosity\n"
3341  "c Send command to first matching filter supporting it\n"
3342  "C Send/Que command to all matching filters\n"
3343  "D cycle through available debug modes\n"
3344  "h dump packets/hex press to cycle through the 3 states\n"
3345  "q quit\n"
3346  "s Show QP histogram\n"
3347  );
3348  }
3349  return 0;
3350 }
3351 
3352 #if HAVE_PTHREADS
3353 static void *input_thread(void *arg)
3354 {
3355  InputFile *f = arg;
3356  int ret = 0;
3357 
3358  while (1) {
3359  AVPacket pkt;
3360  ret = av_read_frame(f->ctx, &pkt);
3361 
3362  if (ret == AVERROR(EAGAIN)) {
3363  av_usleep(10000);
3364  continue;
3365  }
3366  if (ret < 0) {
3367  av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
3368  break;
3369  }
3370  av_dup_packet(&pkt);
3371  ret = av_thread_message_queue_send(f->in_thread_queue, &pkt, 0);
3372  if (ret < 0) {
3373  if (ret != AVERROR_EOF)
3374  av_log(f->ctx, AV_LOG_ERROR,
3375  "Unable to send packet to main thread: %s\n",
3376  av_err2str(ret));
3377  av_free_packet(&pkt);
3378  av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
3379  break;
3380  }
3381  }
3382 
3383  return NULL;
3384 }
3385 
3386 static void free_input_threads(void)
3387 {
3388  int i;
3389 
3390  for (i = 0; i < nb_input_files; i++) {
3391  InputFile *f = input_files[i];
3392  AVPacket pkt;
3393 
3394  if (!f->in_thread_queue)
3395  continue;
3397  while (av_thread_message_queue_recv(f->in_thread_queue, &pkt, 0) >= 0)
3398  av_free_packet(&pkt);
3399 
3400  pthread_join(f->thread, NULL);
3401  f->joined = 1;
3402  av_thread_message_queue_free(&f->in_thread_queue);
3403  }
3404 }
3405 
3406 static int init_input_threads(void)
3407 {
3408  int i, ret;
3409 
3410  if (nb_input_files == 1)
3411  return 0;
3412 
3413  for (i = 0; i < nb_input_files; i++) {
3414  InputFile *f = input_files[i];
3415 
3416  if (f->ctx->pb ? !f->ctx->pb->seekable :
3417  strcmp(f->ctx->iformat->name, "lavfi"))
3418  f->non_blocking = 1;
3419  ret = av_thread_message_queue_alloc(&f->in_thread_queue,
3420  8, sizeof(AVPacket));
3421  if (ret < 0)
3422  return ret;
3423 
3424  if ((ret = pthread_create(&f->thread, NULL, input_thread, f))) {
3425  av_log(NULL, AV_LOG_ERROR, "pthread_create failed: %s. Try to increase `ulimit -v` or decrease `ulimit -s`.\n", strerror(ret));
3426  av_thread_message_queue_free(&f->in_thread_queue);
3427  return AVERROR(ret);
3428  }
3429  }
3430  return 0;
3431 }
3432 
3433 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
3434 {
3435  return av_thread_message_queue_recv(f->in_thread_queue, pkt,
3436  f->non_blocking ?
3438 }
3439 #endif
3440 
3442 {
3443  if (f->rate_emu) {
3444  int i;
3445  for (i = 0; i < f->nb_streams; i++) {
3446  InputStream *ist = input_streams[f->ist_index + i];
3447  int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
3448  int64_t now = av_gettime_relative() - ist->start;
3449  if (pts > now)
3450  return AVERROR(EAGAIN);
3451  }
3452  }
3453 
3454 #if HAVE_PTHREADS
3455  if (nb_input_files > 1)
3456  return get_input_packet_mt(f, pkt);
3457 #endif
3458  return av_read_frame(f->ctx, pkt);
3459 }
3460 
3461 static int got_eagain(void)
3462 {
3463  int i;
3464  for (i = 0; i < nb_output_streams; i++)
3465  if (output_streams[i]->unavailable)
3466  return 1;
3467  return 0;
3468 }
3469 
3470 static void reset_eagain(void)
3471 {
3472  int i;
3473  for (i = 0; i < nb_input_files; i++)
3474  input_files[i]->eagain = 0;
3475  for (i = 0; i < nb_output_streams; i++)
3476  output_streams[i]->unavailable = 0;
3477 }
3478 
3479 /*
3480  * Return
3481  * - 0 -- one packet was read and processed
3482  * - AVERROR(EAGAIN) -- no packets were available for selected file,
3483  * this function should be called again
3484  * - AVERROR_EOF -- this function should not be called again
3485  */
3486 static int process_input(int file_index)
3487 {
3488  InputFile *ifile = input_files[file_index];
3489  AVFormatContext *is;
3490  InputStream *ist;
3491  AVPacket pkt;
3492  int ret, i, j;
3493 
3494  is = ifile->ctx;
3495  ret = get_input_packet(ifile, &pkt);
3496 
3497  if (ret == AVERROR(EAGAIN)) {
3498  ifile->eagain = 1;
3499  return ret;
3500  }
3501  if (ret < 0) {
3502  if (ret != AVERROR_EOF) {
3503  print_error(is->filename, ret);
3504  if (exit_on_error)
3505  exit_program(1);
3506  }
3507 
3508  for (i = 0; i < ifile->nb_streams; i++) {
3509  ist = input_streams[ifile->ist_index + i];
3510  if (ist->decoding_needed) {
3511  ret = process_input_packet(ist, NULL);
3512  if (ret>0)
3513  return 0;
3514  }
3515 
3516  /* mark all outputs that don't go through lavfi as finished */
3517  for (j = 0; j < nb_output_streams; j++) {
3518  OutputStream *ost = output_streams[j];
3519 
3520  if (ost->source_index == ifile->ist_index + i &&
3521  (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
3522  finish_output_stream(ost);
3523  }
3524  }
3525 
3526  ifile->eof_reached = 1;
3527  return AVERROR(EAGAIN);
3528  }
3529 
3530  reset_eagain();
3531 
3532  if (do_pkt_dump) {
3534  is->streams[pkt.stream_index]);
3535  }
3536  /* the following test is needed in case new streams appear
3537  dynamically in stream : we ignore them */
3538  if (pkt.stream_index >= ifile->nb_streams) {
3539  report_new_stream(file_index, &pkt);
3540  goto discard_packet;
3541  }
3542 
3543  ist = input_streams[ifile->ist_index + pkt.stream_index];
3544 
3545  ist->data_size += pkt.size;
3546  ist->nb_packets++;
3547 
3548  if (ist->discard)
3549  goto discard_packet;
3550 
3551  if (debug_ts) {
3552  av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
3553  "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",
3557  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3558  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3559  av_ts2str(input_files[ist->file_index]->ts_offset),
3560  av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3561  }
3562 
3563  if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
3564  int64_t stime, stime2;
3565  // Correcting starttime based on the enabled streams
3566  // 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.
3567  // so we instead do it here as part of discontinuity handling
3568  if ( ist->next_dts == AV_NOPTS_VALUE
3569  && ifile->ts_offset == -is->start_time
3570  && (is->iformat->flags & AVFMT_TS_DISCONT)) {
3571  int64_t new_start_time = INT64_MAX;
3572  for (i=0; i<is->nb_streams; i++) {
3573  AVStream *st = is->streams[i];
3574  if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
3575  continue;
3576  new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
3577  }
3578  if (new_start_time > is->start_time) {
3579  av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
3580  ifile->ts_offset = -new_start_time;
3581  }
3582  }
3583 
3584  stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
3585  stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
3586  ist->wrap_correction_done = 1;
3587 
3588  if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
3589  pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
3590  ist->wrap_correction_done = 0;
3591  }
3592  if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
3593  pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
3594  ist->wrap_correction_done = 0;
3595  }
3596  }
3597 
3598  /* add the stream-global side data to the first packet */
3599  if (ist->nb_packets == 1) {
3600  if (ist->st->nb_side_data)
3602  for (i = 0; i < ist->st->nb_side_data; i++) {
3603  AVPacketSideData *src_sd = &ist->st->side_data[i];
3604  uint8_t *dst_data;
3605 
3606  if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
3607  continue;
3608 
3609  dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
3610  if (!dst_data)
3611  exit_program(1);
3612 
3613  memcpy(dst_data, src_sd->data, src_sd->size);
3614  }
3615  }
3616 
3617  if (pkt.dts != AV_NOPTS_VALUE)
3618  pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3619  if (pkt.pts != AV_NOPTS_VALUE)
3620  pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3621 
3622  if (pkt.pts != AV_NOPTS_VALUE)
3623  pkt.pts *= ist->ts_scale;
3624  if (pkt.dts != AV_NOPTS_VALUE)
3625  pkt.dts *= ist->ts_scale;
3626 
3627  if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
3629  pkt.dts != AV_NOPTS_VALUE && ist->next_dts == AV_NOPTS_VALUE && !copy_ts
3630  && (is->iformat->flags & AVFMT_TS_DISCONT) && ifile->last_ts != AV_NOPTS_VALUE) {
3631  int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3632  int64_t delta = pkt_dts - ifile->last_ts;
3633  if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3634  delta > 1LL*dts_delta_threshold*AV_TIME_BASE){
3635  ifile->ts_offset -= delta;
3636  av_log(NULL, AV_LOG_DEBUG,
3637  "Inter stream timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3638  delta, ifile->ts_offset);
3639  pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3640  if (pkt.pts != AV_NOPTS_VALUE)
3641  pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3642  }
3643  }
3644 
3645  if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
3647  pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
3648  !copy_ts) {
3649  int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3650  int64_t delta = pkt_dts - ist->next_dts;
3651  if (is->iformat->flags & AVFMT_TS_DISCONT) {
3652  if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3653  delta > 1LL*dts_delta_threshold*AV_TIME_BASE ||
3654  pkt_dts + AV_TIME_BASE/10 < FFMAX(ist->pts, ist->dts)) {
3655  ifile->ts_offset -= delta;
3656  av_log(NULL, AV_LOG_DEBUG,
3657  "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3658  delta, ifile->ts_offset);
3659  pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3660  if (pkt.pts != AV_NOPTS_VALUE)
3661  pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3662  }
3663  } else {
3664  if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3665  delta > 1LL*dts_error_threshold*AV_TIME_BASE) {
3666  av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
3667  pkt.dts = AV_NOPTS_VALUE;
3668  }
3669  if (pkt.pts != AV_NOPTS_VALUE){
3670  int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
3671  delta = pkt_pts - ist->next_dts;
3672  if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3673  delta > 1LL*dts_error_threshold*AV_TIME_BASE) {
3674  av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
3675  pkt.pts = AV_NOPTS_VALUE;
3676  }
3677  }
3678  }
3679  }
3680 
3681  if (pkt.dts != AV_NOPTS_VALUE)
3682  ifile->last_ts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3683 
3684  if (debug_ts) {
3685  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",
3687  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3688  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3689  av_ts2str(input_files[ist->file_index]->ts_offset),
3690  av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3691  }
3692 
3693  sub2video_heartbeat(ist, pkt.pts);
3694 
3695  ret = process_input_packet(ist, &pkt);
3696  if (ret < 0) {
3697  av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
3698  ist->file_index, ist->st->index, av_err2str(ret));
3699  if (exit_on_error)
3700  exit_program(1);
3701  }
3702 
3703 discard_packet:
3704  av_free_packet(&pkt);
3705 
3706  return 0;
3707 }
3708 
3709 /**
3710  * Perform a step of transcoding for the specified filter graph.
3711  *
3712  * @param[in] graph filter graph to consider
3713  * @param[out] best_ist input stream where a frame would allow to continue
3714  * @return 0 for success, <0 for error
3715  */
3716 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
3717 {
3718  int i, ret;
3719  int nb_requests, nb_requests_max = 0;
3720  InputFilter *ifilter;
3721  InputStream *ist;
3722 
3723  *best_ist = NULL;
3724  ret = avfilter_graph_request_oldest(graph->graph);
3725  if (ret >= 0)
3726  return reap_filters();
3727 
3728  if (ret == AVERROR_EOF) {
3729  ret = reap_filters();
3730  for (i = 0; i < graph->nb_outputs; i++)
3731  close_output_stream(graph->outputs[i]->ost);
3732  return ret;
3733  }
3734  if (ret != AVERROR(EAGAIN))
3735  return ret;
3736 
3737  for (i = 0; i < graph->nb_inputs; i++) {
3738  ifilter = graph->inputs[i];
3739  ist = ifilter->ist;
3740  if (input_files[ist->file_index]->eagain ||
3741  input_files[ist->file_index]->eof_reached)
3742  continue;
3743  nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
3744  if (nb_requests > nb_requests_max) {
3745  nb_requests_max = nb_requests;
3746  *best_ist = ist;
3747  }
3748  }
3749 
3750  if (!*best_ist)
3751  for (i = 0; i < graph->nb_outputs; i++)
3752  graph->outputs[i]->ost->unavailable = 1;
3753 
3754  return 0;
3755 }
3756 
3757 /**
3758  * Run a single step of transcoding.
3759  *
3760  * @return 0 for success, <0 for error
3761  */
3762 static int transcode_step(void)
3763 {
3764  OutputStream *ost;
3765  InputStream *ist;
3766  int ret;
3767 
3768  ost = choose_output();
3769  if (!ost) {
3770  if (got_eagain()) {
3771  reset_eagain();
3772  av_usleep(10000);
3773  return 0;
3774  }
3775  av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
3776  return AVERROR_EOF;
3777  }
3778 
3779  if (ost->filter) {
3780  if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
3781  return ret;
3782  if (!ist)
3783  return 0;
3784  } else {
3785  av_assert0(ost->source_index >= 0);
3786  ist = input_streams[ost->source_index];
3787  }
3788 
3789  ret = process_input(ist->file_index);
3790  if (ret == AVERROR(EAGAIN)) {
3791  if (input_files[ist->file_index]->eagain)
3792  ost->unavailable = 1;
3793  return 0;
3794  }
3795  if (ret < 0)
3796  return ret == AVERROR_EOF ? 0 : ret;
3797 
3798  return reap_filters();
3799 }
3800 
3801 /*
3802  * The following code is the main loop of the file converter
3803  */
3804 static int transcode(void)
3805 {
3806  int ret, i;
3807  AVFormatContext *os;
3808  OutputStream *ost;
3809  InputStream *ist;
3810  int64_t timer_start;
3811 
3812  ret = transcode_init();
3813  if (ret < 0)
3814  goto fail;
3815 
3816  if (stdin_interaction) {
3817  av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
3818  }
3819 
3820  timer_start = av_gettime_relative();
3821 
3822 #if HAVE_PTHREADS
3823  if ((ret = init_input_threads()) < 0)
3824  goto fail;
3825 #endif
3826 
3827  while (!received_sigterm) {
3828  int64_t cur_time= av_gettime_relative();
3829 
3830  /* if 'q' pressed, exits */
3831  if (stdin_interaction)
3832  if (check_keyboard_interaction(cur_time) < 0)
3833  break;
3834 
3835  /* check if there's any stream where output is still needed */
3836  if (!need_output()) {
3837  av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3838  break;
3839  }
3840 
3841  ret = transcode_step();
3842  if (ret < 0) {
3843  if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
3844  continue;
3845 
3846  av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
3847  break;
3848  }
3849 
3850  /* dump report by using the output first video and audio streams */
3851  print_report(0, timer_start, cur_time);
3852  }
3853 #if HAVE_PTHREADS
3855 #endif
3856 
3857  /* at the end of stream, we must flush the decoder buffers */
3858  for (i = 0; i < nb_input_streams; i++) {
3859  ist = input_streams[i];
3860  if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
3861  process_input_packet(ist, NULL);
3862  }
3863  }
3864  flush_encoders();
3865 
3866  term_exit();
3867 
3868  /* write the trailer if needed and close file */
3869  for (i = 0; i < nb_output_files; i++) {
3870  os = output_files[i]->ctx;
3871  av_write_trailer(os);
3872  }
3873 
3874  /* dump report by using the first video and audio streams */
3875  print_report(1, timer_start, av_gettime_relative());
3876 
3877  /* close each encoder */
3878  for (i = 0; i < nb_output_streams; i++) {
3879  ost = output_streams[i];
3880  if (ost->encoding_needed) {
3881  av_freep(&ost->enc_ctx->stats_in);
3882  }
3883  }
3884 
3885  /* close each decoder */
3886  for (i = 0; i < nb_input_streams; i++) {
3887  ist = input_streams[i];
3888  if (ist->decoding_needed) {
3889  avcodec_close(ist->dec_ctx);
3890  if (ist->hwaccel_uninit)
3891  ist->hwaccel_uninit(ist->dec_ctx);
3892  }
3893  }
3894 
3895  /* finished ! */
3896  ret = 0;
3897 
3898  fail:
3899 #if HAVE_PTHREADS
3901 #endif
3902 
3903  if (output_streams) {
3904  for (i = 0; i < nb_output_streams; i++) {
3905  ost = output_streams[i];
3906  if (ost) {
3907  if (ost->logfile) {
3908  fclose(ost->logfile);
3909  ost->logfile = NULL;
3910  }
3911  av_freep(&ost->forced_kf_pts);
3912  av_freep(&ost->apad);
3913  av_freep(&ost->disposition);
3914  av_dict_free(&ost->encoder_opts);
3915  av_dict_free(&ost->swr_opts);
3916  av_dict_free(&ost->resample_opts);
3917  av_dict_free(&ost->bsf_args);
3918  }
3919  }
3920  }
3921  return ret;
3922 }
3923 
3924 
3925 static int64_t getutime(void)
3926 {
3927 #if HAVE_GETRUSAGE
3928  struct rusage rusage;
3929 
3930  getrusage(RUSAGE_SELF, &rusage);
3931  return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3932 #elif HAVE_GETPROCESSTIMES
3933  HANDLE proc;
3934  FILETIME c, e, k, u;
3935  proc = GetCurrentProcess();
3936  GetProcessTimes(proc, &c, &e, &k, &u);
3937  return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3938 #else
3939  return av_gettime_relative();
3940 #endif
3941 }
3942 
3943 static int64_t getmaxrss(void)
3944 {
3945 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3946  struct rusage rusage;
3947  getrusage(RUSAGE_SELF, &rusage);
3948  return (int64_t)rusage.ru_maxrss * 1024;
3949 #elif HAVE_GETPROCESSMEMORYINFO
3950  HANDLE proc;
3951  PROCESS_MEMORY_COUNTERS memcounters;
3952  proc = GetCurrentProcess();
3953  memcounters.cb = sizeof(memcounters);
3954  GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3955  return memcounters.PeakPagefileUsage;
3956 #else
3957  return 0;
3958 #endif
3959 }
3960 
3961 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
3962 {
3963 }
3964 
3965 int main(int argc, char **argv)
3966 {
3967  int ret;
3968  int64_t ti;
3969 
3971 
3972  setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
3973 
3975  parse_loglevel(argc, argv, options);
3976 
3977  if(argc>1 && !strcmp(argv[1], "-d")){
3978  run_as_daemon=1;
3980  argc--;
3981  argv++;
3982  }
3983 
3985 #if CONFIG_AVDEVICE
3987 #endif
3989  av_register_all();
3991 
3992  show_banner(argc, argv, options);
3993 
3994  term_init();
3995 
3996  /* parse options and open all input/output files */
3997  ret = ffmpeg_parse_options(argc, argv);
3998  if (ret < 0)
3999  exit_program(1);
4000 
4001  if (nb_output_files <= 0 && nb_input_files == 0) {
4002  show_usage();
4003  av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
4004  exit_program(1);
4005  }
4006 
4007  /* file converter / grab */
4008  if (nb_output_files <= 0) {
4009  av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
4010  exit_program(1);
4011  }
4012 
4013 // if (nb_input_files == 0) {
4014 // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
4015 // exit_program(1);
4016 // }
4017 
4018  current_time = ti = getutime();
4019  if (transcode() < 0)
4020  exit_program(1);
4021  ti = getutime() - ti;
4022  if (do_benchmark) {
4023  printf("bench: utime=%0.3fs\n", ti / 1000000.0);
4024  }
4025  av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n",
4028  exit_program(69);
4029 
4031  return main_return_code;
4032 }