FFmpeg
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
ffmpeg.c
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2000-2003 Fabrice Bellard
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 /**
22  * @file
23  * multimedia converter based on the FFmpeg libraries
24  */
25 
26 #include "config.h"
27 #include <ctype.h>
28 #include <string.h>
29 #include <math.h>
30 #include <stdlib.h>
31 #include <errno.h>
32 #include <limits.h>
33 #include <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) && s->pb)
462  avio_close(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 {
888  int ret, format_video_sync;
889  AVPacket pkt;
890  AVCodecContext *enc = ost->enc_ctx;
891  AVCodecContext *mux_enc = ost->st->codec;
892  int nb_frames, nb0_frames, i;
893  double sync_ipts, delta, delta0;
894  double duration = 0;
895  int frame_size = 0;
896  InputStream *ist = NULL;
897 
898  if (ost->source_index >= 0)
899  ist = input_streams[ost->source_index];
900 
901  if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
902  duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
903 
904  if (!ost->filters_script &&
905  !ost->filters &&
906  next_picture &&
907  ist &&
908  lrintf(av_frame_get_pkt_duration(next_picture) * av_q2d(ist->st->time_base) / av_q2d(enc->time_base)) > 0) {
909  duration = lrintf(av_frame_get_pkt_duration(next_picture) * av_q2d(ist->st->time_base) / av_q2d(enc->time_base));
910  }
911 
912  sync_ipts = next_picture->pts;
913  delta0 = sync_ipts - ost->sync_opts;
914  delta = delta0 + duration;
915 
916  /* by default, we output a single frame */
917  nb0_frames = 0;
918  nb_frames = 1;
919 
920  format_video_sync = video_sync_method;
921  if (format_video_sync == VSYNC_AUTO) {
922  if(!strcmp(s->oformat->name, "avi")) {
923  format_video_sync = VSYNC_VFR;
924  } else
926  if ( ist
927  && format_video_sync == VSYNC_CFR
928  && input_files[ist->file_index]->ctx->nb_streams == 1
929  && input_files[ist->file_index]->input_ts_offset == 0) {
930  format_video_sync = VSYNC_VSCFR;
931  }
932  if (format_video_sync == VSYNC_CFR && copy_ts) {
933  format_video_sync = VSYNC_VSCFR;
934  }
935  }
936 
937  if (delta0 < 0 &&
938  delta > 0 &&
939  format_video_sync != VSYNC_PASSTHROUGH &&
940  format_video_sync != VSYNC_DROP) {
941  double cor = FFMIN(-delta0, duration);
942  av_log(NULL, AV_LOG_WARNING, "Past duration %f too large\n", -delta0);
943  sync_ipts += cor;
944  duration -= cor;
945  delta0 += cor;
946  }
947 
948  switch (format_video_sync) {
949  case VSYNC_VSCFR:
950  if (ost->frame_number == 0 && delta - duration >= 0.5) {
951  av_log(NULL, AV_LOG_DEBUG, "Not duplicating %d initial frames\n", (int)lrintf(delta - duration));
952  delta = duration;
953  delta0 = 0;
954  ost->sync_opts = lrint(sync_ipts);
955  }
956  case VSYNC_CFR:
957  // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
958  if (delta < -1.1)
959  nb_frames = 0;
960  else if (delta > 1.1) {
961  nb_frames = lrintf(delta);
962  if (delta0 > 1.1)
963  nb0_frames = lrintf(delta0 - 0.6);
964  }
965  break;
966  case VSYNC_VFR:
967  if (delta <= -0.6)
968  nb_frames = 0;
969  else if (delta > 0.6)
970  ost->sync_opts = lrint(sync_ipts);
971  break;
972  case VSYNC_DROP:
973  case VSYNC_PASSTHROUGH:
974  ost->sync_opts = lrint(sync_ipts);
975  break;
976  default:
977  av_assert0(0);
978  }
979 
980  nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
981  nb0_frames = FFMIN(nb0_frames, nb_frames);
982  if (nb0_frames == 0 && ost->last_droped) {
983  nb_frames_drop++;
984  av_log(NULL, AV_LOG_VERBOSE,
985  "*** dropping frame %d from stream %d at ts %"PRId64"\n",
986  ost->frame_number, ost->st->index, ost->last_frame->pts);
987  }
988  if (nb_frames > (nb0_frames && ost->last_droped) + (nb_frames > nb0_frames)) {
989  if (nb_frames > dts_error_threshold * 30) {
990  av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
991  nb_frames_drop++;
992  return;
993  }
994  nb_frames_dup += nb_frames - (nb0_frames && ost->last_droped) - (nb_frames > nb0_frames);
995  av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
996  }
997  ost->last_droped = nb_frames == nb0_frames;
998 
999  /* duplicates frame if needed */
1000  for (i = 0; i < nb_frames; i++) {
1001  AVFrame *in_picture;
1002  av_init_packet(&pkt);
1003  pkt.data = NULL;
1004  pkt.size = 0;
1005 
1006  if (i < nb0_frames && ost->last_frame) {
1007  in_picture = ost->last_frame;
1008  } else
1009  in_picture = next_picture;
1010 
1011  in_picture->pts = ost->sync_opts;
1012 
1013 #if 1
1014  if (!check_recording_time(ost))
1015 #else
1016  if (ost->frame_number >= ost->max_frames)
1017 #endif
1018  return;
1019 
1020  if (s->oformat->flags & AVFMT_RAWPICTURE &&
1021  enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
1022  /* raw pictures are written as AVPicture structure to
1023  avoid any copies. We support temporarily the older
1024  method. */
1025  if (in_picture->interlaced_frame)
1026  mux_enc->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
1027  else
1028  mux_enc->field_order = AV_FIELD_PROGRESSIVE;
1029  pkt.data = (uint8_t *)in_picture;
1030  pkt.size = sizeof(AVPicture);
1031  pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
1032  pkt.flags |= AV_PKT_FLAG_KEY;
1033 
1034  write_frame(s, &pkt, ost);
1035  } else {
1036  int got_packet, forced_keyframe = 0;
1037  double pts_time;
1038 
1040  ost->top_field_first >= 0)
1041  in_picture->top_field_first = !!ost->top_field_first;
1042 
1043  if (in_picture->interlaced_frame) {
1044  if (enc->codec->id == AV_CODEC_ID_MJPEG)
1045  mux_enc->field_order = in_picture->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
1046  else
1047  mux_enc->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
1048  } else
1049  mux_enc->field_order = AV_FIELD_PROGRESSIVE;
1050 
1051  in_picture->quality = enc->global_quality;
1052  in_picture->pict_type = 0;
1053 
1054  pts_time = in_picture->pts != AV_NOPTS_VALUE ?
1055  in_picture->pts * av_q2d(enc->time_base) : NAN;
1056  if (ost->forced_kf_index < ost->forced_kf_count &&
1057  in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1058  ost->forced_kf_index++;
1059  forced_keyframe = 1;
1060  } else if (ost->forced_keyframes_pexpr) {
1061  double res;
1062  ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
1065  av_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
1071  res);
1072  if (res) {
1073  forced_keyframe = 1;
1079  }
1080 
1082  }
1083 
1084  if (forced_keyframe) {
1085  in_picture->pict_type = AV_PICTURE_TYPE_I;
1086  av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
1087  }
1088 
1089  update_benchmark(NULL);
1090  if (debug_ts) {
1091  av_log(NULL, AV_LOG_INFO, "encoder <- type:video "
1092  "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
1093  av_ts2str(in_picture->pts), av_ts2timestr(in_picture->pts, &enc->time_base),
1094  enc->time_base.num, enc->time_base.den);
1095  }
1096 
1097  ost->frames_encoded++;
1098 
1099  ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
1100  update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
1101  if (ret < 0) {
1102  av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1103  exit_program(1);
1104  }
1105 
1106  if (got_packet) {
1107  if (debug_ts) {
1108  av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
1109  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
1110  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &enc->time_base),
1111  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &enc->time_base));
1112  }
1113 
1114  if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
1115  pkt.pts = ost->sync_opts;
1116 
1117  av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
1118 
1119  if (debug_ts) {
1120  av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
1121  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
1122  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
1123  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
1124  }
1125 
1126  frame_size = pkt.size;
1127  write_frame(s, &pkt, ost);
1128 
1129  /* if two pass, output log */
1130  if (ost->logfile && enc->stats_out) {
1131  fprintf(ost->logfile, "%s", enc->stats_out);
1132  }
1133  }
1134  }
1135  ost->sync_opts++;
1136  /*
1137  * For video, number of frames in == number of packets out.
1138  * But there may be reordering, so we can't throw away frames on encoder
1139  * flush, we need to limit them here, before they go into encoder.
1140  */
1141  ost->frame_number++;
1142 
1143  if (vstats_filename && frame_size)
1144  do_video_stats(ost, frame_size);
1145  }
1146 
1147  if (!ost->last_frame)
1148  ost->last_frame = av_frame_alloc();
1149  av_frame_unref(ost->last_frame);
1150  av_frame_ref(ost->last_frame, next_picture);
1151 }
1152 
1153 static double psnr(double d)
1154 {
1155  return -10.0 * log(d) / log(10.0);
1156 }
1157 
1159 {
1160  AVCodecContext *enc;
1161  int frame_number;
1162  double ti1, bitrate, avg_bitrate;
1163 
1164  /* this is executed just the first time do_video_stats is called */
1165  if (!vstats_file) {
1166  vstats_file = fopen(vstats_filename, "w");
1167  if (!vstats_file) {
1168  perror("fopen");
1169  exit_program(1);
1170  }
1171  }
1172 
1173  enc = ost->enc_ctx;
1174  if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1175  frame_number = ost->st->nb_frames;
1176  fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1177  if (enc->flags&CODEC_FLAG_PSNR)
1178  fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1179 
1180  fprintf(vstats_file,"f_size= %6d ", frame_size);
1181  /* compute pts value */
1182  ti1 = av_stream_get_end_pts(ost->st) * av_q2d(ost->st->time_base);
1183  if (ti1 < 0.01)
1184  ti1 = 0.01;
1185 
1186  bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1187  avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
1188  fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1189  (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
1190  fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1191  }
1192 }
1193 
1195 {
1196  OutputFile *of = output_files[ost->file_index];
1197  int i;
1198 
1200 
1201  if (of->shortest) {
1202  for (i = 0; i < of->ctx->nb_streams; i++)
1203  output_streams[of->ost_index + i]->finished = ENCODER_FINISHED | MUXER_FINISHED;
1204  }
1205 }
1206 
1207 /**
1208  * Get and encode new output from any of the filtergraphs, without causing
1209  * activity.
1210  *
1211  * @return 0 for success, <0 for severe errors
1212  */
1213 static int reap_filters(void)
1214 {
1215  AVFrame *filtered_frame = NULL;
1216  int i;
1217  int64_t frame_pts;
1218 
1219  /* Reap all buffers present in the buffer sinks */
1220  for (i = 0; i < nb_output_streams; i++) {
1221  OutputStream *ost = output_streams[i];
1222  OutputFile *of = output_files[ost->file_index];
1224  AVCodecContext *enc = ost->enc_ctx;
1225  int ret = 0;
1226 
1227  if (!ost->filter)
1228  continue;
1229  filter = ost->filter->filter;
1230 
1231  if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
1232  return AVERROR(ENOMEM);
1233  }
1234  filtered_frame = ost->filtered_frame;
1235 
1236  while (1) {
1237  ret = av_buffersink_get_frame_flags(filter, filtered_frame,
1239  if (ret < 0) {
1240  if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1241  av_log(NULL, AV_LOG_WARNING,
1242  "Error in av_buffersink_get_frame_flags(): %s\n", av_err2str(ret));
1243  }
1244  break;
1245  }
1246  if (ost->finished) {
1247  av_frame_unref(filtered_frame);
1248  continue;
1249  }
1250  frame_pts = AV_NOPTS_VALUE;
1251  if (filtered_frame->pts != AV_NOPTS_VALUE) {
1252  int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1253  filtered_frame->pts = frame_pts =
1254  av_rescale_q(filtered_frame->pts, filter->inputs[0]->time_base, enc->time_base) -
1255  av_rescale_q(start_time, AV_TIME_BASE_Q, enc->time_base);
1256  }
1257  //if (ost->source_index >= 0)
1258  // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1259 
1260  switch (filter->inputs[0]->type) {
1261  case AVMEDIA_TYPE_VIDEO:
1262  filtered_frame->pts = frame_pts;
1263  if (!ost->frame_aspect_ratio.num)
1264  enc->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
1265 
1266  if (debug_ts) {
1267  av_log(NULL, AV_LOG_INFO, "filter -> pts:%s pts_time:%s time_base:%d/%d\n",
1268  av_ts2str(filtered_frame->pts), av_ts2timestr(filtered_frame->pts, &enc->time_base),
1269  enc->time_base.num, enc->time_base.den);
1270  }
1271 
1272  do_video_out(of->ctx, ost, filtered_frame);
1273  break;
1274  case AVMEDIA_TYPE_AUDIO:
1275  filtered_frame->pts = frame_pts;
1276  if (!(enc->codec->capabilities & CODEC_CAP_PARAM_CHANGE) &&
1277  enc->channels != av_frame_get_channels(filtered_frame)) {
1278  av_log(NULL, AV_LOG_ERROR,
1279  "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
1280  break;
1281  }
1282  do_audio_out(of->ctx, ost, filtered_frame);
1283  break;
1284  default:
1285  // TODO support subtitle filters
1286  av_assert0(0);
1287  }
1288 
1289  av_frame_unref(filtered_frame);
1290  }
1291  }
1292 
1293  return 0;
1294 }
1295 
1296 static void print_final_stats(int64_t total_size)
1297 {
1298  uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
1299  uint64_t subtitle_size = 0;
1300  uint64_t data_size = 0;
1301  float percent = -1.0;
1302  int i, j;
1303 
1304  for (i = 0; i < nb_output_streams; i++) {
1305  OutputStream *ost = output_streams[i];
1306  switch (ost->enc_ctx->codec_type) {
1307  case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
1308  case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
1309  case AVMEDIA_TYPE_SUBTITLE: subtitle_size += ost->data_size; break;
1310  default: other_size += ost->data_size; break;
1311  }
1312  extra_size += ost->enc_ctx->extradata_size;
1313  data_size += ost->data_size;
1314  }
1315 
1316  if (data_size && total_size>0 && total_size >= data_size)
1317  percent = 100.0 * (total_size - data_size) / data_size;
1318 
1319  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: ",
1320  video_size / 1024.0,
1321  audio_size / 1024.0,
1322  subtitle_size / 1024.0,
1323  other_size / 1024.0,
1324  extra_size / 1024.0);
1325  if (percent >= 0.0)
1326  av_log(NULL, AV_LOG_INFO, "%f%%", percent);
1327  else
1328  av_log(NULL, AV_LOG_INFO, "unknown");
1329  av_log(NULL, AV_LOG_INFO, "\n");
1330 
1331  /* print verbose per-stream stats */
1332  for (i = 0; i < nb_input_files; i++) {
1333  InputFile *f = input_files[i];
1334  uint64_t total_packets = 0, total_size = 0;
1335 
1336  av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
1337  i, f->ctx->filename);
1338 
1339  for (j = 0; j < f->nb_streams; j++) {
1340  InputStream *ist = input_streams[f->ist_index + j];
1341  enum AVMediaType type = ist->dec_ctx->codec_type;
1342 
1343  total_size += ist->data_size;
1344  total_packets += ist->nb_packets;
1345 
1346  av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
1347  i, j, media_type_string(type));
1348  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
1349  ist->nb_packets, ist->data_size);
1350 
1351  if (ist->decoding_needed) {
1352  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
1353  ist->frames_decoded);
1354  if (type == AVMEDIA_TYPE_AUDIO)
1355  av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
1356  av_log(NULL, AV_LOG_VERBOSE, "; ");
1357  }
1358 
1359  av_log(NULL, AV_LOG_VERBOSE, "\n");
1360  }
1361 
1362  av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
1363  total_packets, total_size);
1364  }
1365 
1366  for (i = 0; i < nb_output_files; i++) {
1367  OutputFile *of = output_files[i];
1368  uint64_t total_packets = 0, total_size = 0;
1369 
1370  av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
1371  i, of->ctx->filename);
1372 
1373  for (j = 0; j < of->ctx->nb_streams; j++) {
1374  OutputStream *ost = output_streams[of->ost_index + j];
1375  enum AVMediaType type = ost->enc_ctx->codec_type;
1376 
1377  total_size += ost->data_size;
1378  total_packets += ost->packets_written;
1379 
1380  av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
1381  i, j, media_type_string(type));
1382  if (ost->encoding_needed) {
1383  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
1384  ost->frames_encoded);
1385  if (type == AVMEDIA_TYPE_AUDIO)
1386  av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
1387  av_log(NULL, AV_LOG_VERBOSE, "; ");
1388  }
1389 
1390  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
1391  ost->packets_written, ost->data_size);
1392 
1393  av_log(NULL, AV_LOG_VERBOSE, "\n");
1394  }
1395 
1396  av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
1397  total_packets, total_size);
1398  }
1399  if(video_size + data_size + audio_size + subtitle_size + extra_size == 0){
1400  av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
1401  }
1402 }
1403 
1404 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1405 {
1406  char buf[1024];
1407  AVBPrint buf_script;
1408  OutputStream *ost;
1409  AVFormatContext *oc;
1410  int64_t total_size;
1411  AVCodecContext *enc;
1412  int frame_number, vid, i;
1413  double bitrate;
1414  int64_t pts = INT64_MIN;
1415  static int64_t last_time = -1;
1416  static int qp_histogram[52];
1417  int hours, mins, secs, us;
1418 
1419  if (!print_stats && !is_last_report && !progress_avio)
1420  return;
1421 
1422  if (!is_last_report) {
1423  if (last_time == -1) {
1424  last_time = cur_time;
1425  return;
1426  }
1427  if ((cur_time - last_time) < 500000)
1428  return;
1429  last_time = cur_time;
1430  }
1431 
1432 
1433  oc = output_files[0]->ctx;
1434 
1435  total_size = avio_size(oc->pb);
1436  if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
1437  total_size = avio_tell(oc->pb);
1438 
1439  buf[0] = '\0';
1440  vid = 0;
1441  av_bprint_init(&buf_script, 0, 1);
1442  for (i = 0; i < nb_output_streams; i++) {
1443  float q = -1;
1444  ost = output_streams[i];
1445  enc = ost->enc_ctx;
1446  if (!ost->stream_copy && enc->coded_frame)
1447  q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1448  if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1449  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1450  av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1451  ost->file_index, ost->index, q);
1452  }
1453  if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1454  float fps, t = (cur_time-timer_start) / 1000000.0;
1455 
1456  frame_number = ost->frame_number;
1457  fps = t > 1 ? frame_number / t : 0;
1458  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
1459  frame_number, fps < 9.95, fps, q);
1460  av_bprintf(&buf_script, "frame=%d\n", frame_number);
1461  av_bprintf(&buf_script, "fps=%.1f\n", fps);
1462  av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1463  ost->file_index, ost->index, q);
1464  if (is_last_report)
1465  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1466  if (qp_hist) {
1467  int j;
1468  int qp = lrintf(q);
1469  if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1470  qp_histogram[qp]++;
1471  for (j = 0; j < 32; j++)
1472  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
1473  }
1474  if ((enc->flags&CODEC_FLAG_PSNR) && (enc->coded_frame || is_last_report)) {
1475  int j;
1476  double error, error_sum = 0;
1477  double scale, scale_sum = 0;
1478  double p;
1479  char type[3] = { 'Y','U','V' };
1480  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1481  for (j = 0; j < 3; j++) {
1482  if (is_last_report) {
1483  error = enc->error[j];
1484  scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1485  } else {
1486  error = enc->coded_frame->error[j];
1487  scale = enc->width * enc->height * 255.0 * 255.0;
1488  }
1489  if (j)
1490  scale /= 4;
1491  error_sum += error;
1492  scale_sum += scale;
1493  p = psnr(error / scale);
1494  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
1495  av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1496  ost->file_index, ost->index, type[j] | 32, p);
1497  }
1498  p = psnr(error_sum / scale_sum);
1499  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1500  av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1501  ost->file_index, ost->index, p);
1502  }
1503  vid = 1;
1504  }
1505  /* compute min output value */
1507  pts = FFMAX(pts, av_rescale_q(av_stream_get_end_pts(ost->st),
1508  ost->st->time_base, AV_TIME_BASE_Q));
1509  if (is_last_report)
1510  nb_frames_drop += ost->last_droped;
1511  }
1512 
1513  secs = pts / AV_TIME_BASE;
1514  us = pts % AV_TIME_BASE;
1515  mins = secs / 60;
1516  secs %= 60;
1517  hours = mins / 60;
1518  mins %= 60;
1519 
1520  bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
1521 
1522  if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1523  "size=N/A time=");
1524  else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1525  "size=%8.0fkB time=", total_size / 1024.0);
1526  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1527  "%02d:%02d:%02d.%02d ", hours, mins, secs,
1528  (100 * us) / AV_TIME_BASE);
1529  if (bitrate < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1530  "bitrate=N/A");
1531  else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1532  "bitrate=%6.1fkbits/s", bitrate);
1533  if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
1534  else av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1535  av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1536  av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
1537  hours, mins, secs, us);
1538 
1540  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1542  av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1543  av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1544 
1545  if (print_stats || is_last_report) {
1546  const char end = is_last_report ? '\n' : '\r';
1547  if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
1548  fprintf(stderr, "%s %c", buf, end);
1549  } else
1550  av_log(NULL, AV_LOG_INFO, "%s %c", buf, end);
1551 
1552  fflush(stderr);
1553  }
1554 
1555  if (progress_avio) {
1556  av_bprintf(&buf_script, "progress=%s\n",
1557  is_last_report ? "end" : "continue");
1558  avio_write(progress_avio, buf_script.str,
1559  FFMIN(buf_script.len, buf_script.size - 1));
1560  avio_flush(progress_avio);
1561  av_bprint_finalize(&buf_script, NULL);
1562  if (is_last_report) {
1563  avio_close(progress_avio);
1564  progress_avio = NULL;
1565  }
1566  }
1567 
1568  if (is_last_report)
1569  print_final_stats(total_size);
1570 }
1571 
1572 static void flush_encoders(void)
1573 {
1574  int i, ret;
1575 
1576  for (i = 0; i < nb_output_streams; i++) {
1577  OutputStream *ost = output_streams[i];
1578  AVCodecContext *enc = ost->enc_ctx;
1579  AVFormatContext *os = output_files[ost->file_index]->ctx;
1580  int stop_encoding = 0;
1581 
1582  if (!ost->encoding_needed)
1583  continue;
1584 
1585  if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1586  continue;
1588  continue;
1589 
1590  for (;;) {
1591  int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1592  const char *desc;
1593 
1594  switch (enc->codec_type) {
1595  case AVMEDIA_TYPE_AUDIO:
1596  encode = avcodec_encode_audio2;
1597  desc = "Audio";
1598  break;
1599  case AVMEDIA_TYPE_VIDEO:
1600  encode = avcodec_encode_video2;
1601  desc = "Video";
1602  break;
1603  default:
1604  stop_encoding = 1;
1605  }
1606 
1607  if (encode) {
1608  AVPacket pkt;
1609  int pkt_size;
1610  int got_packet;
1611  av_init_packet(&pkt);
1612  pkt.data = NULL;
1613  pkt.size = 0;
1614 
1615  update_benchmark(NULL);
1616  ret = encode(enc, &pkt, NULL, &got_packet);
1617  update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
1618  if (ret < 0) {
1619  av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1620  exit_program(1);
1621  }
1622  if (ost->logfile && enc->stats_out) {
1623  fprintf(ost->logfile, "%s", enc->stats_out);
1624  }
1625  if (!got_packet) {
1626  stop_encoding = 1;
1627  break;
1628  }
1629  if (ost->finished & MUXER_FINISHED) {
1630  av_free_packet(&pkt);
1631  continue;
1632  }
1633  av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
1634  pkt_size = pkt.size;
1635  write_frame(os, &pkt, ost);
1637  do_video_stats(ost, pkt_size);
1638  }
1639  }
1640 
1641  if (stop_encoding)
1642  break;
1643  }
1644  }
1645 }
1646 
1647 /*
1648  * Check whether a packet from ist should be written into ost at this time
1649  */
1651 {
1652  OutputFile *of = output_files[ost->file_index];
1653  int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1654 
1655  if (ost->source_index != ist_index)
1656  return 0;
1657 
1658  if (ost->finished)
1659  return 0;
1660 
1661  if (of->start_time != AV_NOPTS_VALUE && ist->pts < of->start_time)
1662  return 0;
1663 
1664  return 1;
1665 }
1666 
1667 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1668 {
1669  OutputFile *of = output_files[ost->file_index];
1670  InputFile *f = input_files [ist->file_index];
1671  int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1672  int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1673  int64_t ist_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ist->st->time_base);
1674  AVPicture pict;
1675  AVPacket opkt;
1676 
1677  av_init_packet(&opkt);
1678 
1679  if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1681  return;
1682 
1683  if (pkt->pts == AV_NOPTS_VALUE) {
1684  if (!ost->frame_number && ist->pts < start_time &&
1685  !ost->copy_prior_start)
1686  return;
1687  } else {
1688  if (!ost->frame_number && pkt->pts < ist_tb_start_time &&
1689  !ost->copy_prior_start)
1690  return;
1691  }
1692 
1693  if (of->recording_time != INT64_MAX &&
1694  ist->pts >= of->recording_time + start_time) {
1695  close_output_stream(ost);
1696  return;
1697  }
1698 
1699  if (f->recording_time != INT64_MAX) {
1700  start_time = f->ctx->start_time;
1701  if (f->start_time != AV_NOPTS_VALUE)
1702  start_time += f->start_time;
1703  if (ist->pts >= f->recording_time + start_time) {
1704  close_output_stream(ost);
1705  return;
1706  }
1707  }
1708 
1709  /* force the input stream PTS */
1710  if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
1711  ost->sync_opts++;
1712 
1713  if (pkt->pts != AV_NOPTS_VALUE)
1714  opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1715  else
1716  opkt.pts = AV_NOPTS_VALUE;
1717 
1718  if (pkt->dts == AV_NOPTS_VALUE)
1719  opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
1720  else
1721  opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1722  opkt.dts -= ost_tb_start_time;
1723 
1724  if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
1726  if(!duration)
1727  duration = ist->dec_ctx->frame_size;
1728  opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
1730  ost->st->time_base) - ost_tb_start_time;
1731  }
1732 
1733  opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1734  opkt.flags = pkt->flags;
1735 
1736  // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1737  if ( ost->enc_ctx->codec_id != AV_CODEC_ID_H264
1738  && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG1VIDEO
1739  && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG2VIDEO
1740  && ost->enc_ctx->codec_id != AV_CODEC_ID_VC1
1741  ) {
1742  if (av_parser_change(ost->parser, ost->st->codec,
1743  &opkt.data, &opkt.size,
1744  pkt->data, pkt->size,
1745  pkt->flags & AV_PKT_FLAG_KEY)) {
1746  opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1747  if (!opkt.buf)
1748  exit_program(1);
1749  }
1750  } else {
1751  opkt.data = pkt->data;
1752  opkt.size = pkt->size;
1753  }
1754  av_copy_packet_side_data(&opkt, pkt);
1755 
1756  if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
1757  /* store AVPicture in AVPacket, as expected by the output format */
1758  avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1759  opkt.data = (uint8_t *)&pict;
1760  opkt.size = sizeof(AVPicture);
1761  opkt.flags |= AV_PKT_FLAG_KEY;
1762  }
1763 
1764  write_frame(of->ctx, &opkt, ost);
1765 }
1766 
1768 {
1769  AVCodecContext *dec = ist->dec_ctx;
1770 
1771  if (!dec->channel_layout) {
1772  char layout_name[256];
1773 
1774  if (dec->channels > ist->guess_layout_max)
1775  return 0;
1777  if (!dec->channel_layout)
1778  return 0;
1779  av_get_channel_layout_string(layout_name, sizeof(layout_name),
1780  dec->channels, dec->channel_layout);
1781  av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1782  "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1783  }
1784  return 1;
1785 }
1786 
1787 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1788 {
1789  AVFrame *decoded_frame, *f;
1790  AVCodecContext *avctx = ist->dec_ctx;
1791  int i, ret, err = 0, resample_changed;
1792  AVRational decoded_frame_tb;
1793 
1794  if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1795  return AVERROR(ENOMEM);
1796  if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1797  return AVERROR(ENOMEM);
1798  decoded_frame = ist->decoded_frame;
1799 
1800  update_benchmark(NULL);
1801  ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1802  update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
1803 
1804  if (ret >= 0 && avctx->sample_rate <= 0) {
1805  av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
1806  ret = AVERROR_INVALIDDATA;
1807  }
1808 
1809  if (*got_output || ret<0 || pkt->size)
1810  decode_error_stat[ret<0] ++;
1811 
1812  if (!*got_output || ret < 0) {
1813  if (!pkt->size) {
1814  for (i = 0; i < ist->nb_filters; i++)
1815 #if 1
1816  av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1817 #else
1818  av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1819 #endif
1820  }
1821  return ret;
1822  }
1823 
1824  ist->samples_decoded += decoded_frame->nb_samples;
1825  ist->frames_decoded++;
1826 
1827 #if 1
1828  /* increment next_dts to use for the case where the input stream does not
1829  have timestamps or there are multiple frames in the packet */
1830  ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1831  avctx->sample_rate;
1832  ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1833  avctx->sample_rate;
1834 #endif
1835 
1836  resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1837  ist->resample_channels != avctx->channels ||
1838  ist->resample_channel_layout != decoded_frame->channel_layout ||
1839  ist->resample_sample_rate != decoded_frame->sample_rate;
1840  if (resample_changed) {
1841  char layout1[64], layout2[64];
1842 
1843  if (!guess_input_channel_layout(ist)) {
1844  av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1845  "layout for Input Stream #%d.%d\n", ist->file_index,
1846  ist->st->index);
1847  exit_program(1);
1848  }
1849  decoded_frame->channel_layout = avctx->channel_layout;
1850 
1851  av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1853  av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1854  decoded_frame->channel_layout);
1855 
1856  av_log(NULL, AV_LOG_INFO,
1857  "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",
1858  ist->file_index, ist->st->index,
1860  ist->resample_channels, layout1,
1861  decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1862  avctx->channels, layout2);
1863 
1864  ist->resample_sample_fmt = decoded_frame->format;
1865  ist->resample_sample_rate = decoded_frame->sample_rate;
1866  ist->resample_channel_layout = decoded_frame->channel_layout;
1867  ist->resample_channels = avctx->channels;
1868 
1869  for (i = 0; i < nb_filtergraphs; i++)
1870  if (ist_in_filtergraph(filtergraphs[i], ist)) {
1871  FilterGraph *fg = filtergraphs[i];
1872  if (configure_filtergraph(fg) < 0) {
1873  av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1874  exit_program(1);
1875  }
1876  }
1877  }
1878 
1879  /* if the decoder provides a pts, use it instead of the last packet pts.
1880  the decoder could be delaying output by a packet or more. */
1881  if (decoded_frame->pts != AV_NOPTS_VALUE) {
1882  ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
1883  decoded_frame_tb = avctx->time_base;
1884  } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
1885  decoded_frame->pts = decoded_frame->pkt_pts;
1886  decoded_frame_tb = ist->st->time_base;
1887  } else if (pkt->pts != AV_NOPTS_VALUE) {
1888  decoded_frame->pts = pkt->pts;
1889  decoded_frame_tb = ist->st->time_base;
1890  }else {
1891  decoded_frame->pts = ist->dts;
1892  decoded_frame_tb = AV_TIME_BASE_Q;
1893  }
1894  pkt->pts = AV_NOPTS_VALUE;
1895  if (decoded_frame->pts != AV_NOPTS_VALUE)
1896  decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
1897  (AVRational){1, avctx->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
1898  (AVRational){1, avctx->sample_rate});
1899  for (i = 0; i < ist->nb_filters; i++) {
1900  if (i < ist->nb_filters - 1) {
1901  f = ist->filter_frame;
1902  err = av_frame_ref(f, decoded_frame);
1903  if (err < 0)
1904  break;
1905  } else
1906  f = decoded_frame;
1907  err = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f,
1909  if (err == AVERROR_EOF)
1910  err = 0; /* ignore */
1911  if (err < 0)
1912  break;
1913  }
1914  decoded_frame->pts = AV_NOPTS_VALUE;
1915 
1916  av_frame_unref(ist->filter_frame);
1917  av_frame_unref(decoded_frame);
1918  return err < 0 ? err : ret;
1919 }
1920 
1921 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1922 {
1923  AVFrame *decoded_frame, *f;
1924  int i, ret = 0, err = 0, resample_changed;
1925  int64_t best_effort_timestamp;
1926  AVRational *frame_sample_aspect;
1927 
1928  if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1929  return AVERROR(ENOMEM);
1930  if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1931  return AVERROR(ENOMEM);
1932  decoded_frame = ist->decoded_frame;
1933  pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
1934 
1935  update_benchmark(NULL);
1936  ret = avcodec_decode_video2(ist->dec_ctx,
1937  decoded_frame, got_output, pkt);
1938  update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
1939 
1940  // The following line may be required in some cases where there is no parser
1941  // or the parser does not has_b_frames correctly
1942  if (ist->st->codec->has_b_frames < ist->dec_ctx->has_b_frames) {
1943  if (ist->dec_ctx->codec_id == AV_CODEC_ID_H264) {
1944  ist->st->codec->has_b_frames = ist->dec_ctx->has_b_frames;
1945  } else
1947  ist->dec_ctx,
1948  "has_b_frames is larger in decoder than demuxer %d > %d ",
1949  ist->dec_ctx->has_b_frames,
1950  ist->st->codec->has_b_frames
1951  );
1952  }
1953 
1954  if (*got_output || ret<0 || pkt->size)
1955  decode_error_stat[ret<0] ++;
1956 
1957  if (*got_output && ret >= 0) {
1958  if (ist->dec_ctx->width != decoded_frame->width ||
1959  ist->dec_ctx->height != decoded_frame->height ||
1960  ist->dec_ctx->pix_fmt != decoded_frame->format) {
1961  av_log(NULL, AV_LOG_DEBUG, "Frame parameters mismatch context %d,%d,%d != %d,%d,%d\n",
1962  decoded_frame->width,
1963  decoded_frame->height,
1964  decoded_frame->format,
1965  ist->dec_ctx->width,
1966  ist->dec_ctx->height,
1967  ist->dec_ctx->pix_fmt);
1968  }
1969  }
1970 
1971  if (!*got_output || ret < 0) {
1972  if (!pkt->size) {
1973  for (i = 0; i < ist->nb_filters; i++)
1974 #if 1
1975  av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1976 #else
1977  av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1978 #endif
1979  }
1980  return ret;
1981  }
1982 
1983  if(ist->top_field_first>=0)
1984  decoded_frame->top_field_first = ist->top_field_first;
1985 
1986  ist->frames_decoded++;
1987 
1988  if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
1989  err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
1990  if (err < 0)
1991  goto fail;
1992  }
1993  ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
1994 
1995  best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
1996  if(best_effort_timestamp != AV_NOPTS_VALUE)
1997  ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
1998 
1999  if (debug_ts) {
2000  av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
2001  "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",
2002  ist->st->index, av_ts2str(decoded_frame->pts),
2003  av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
2004  best_effort_timestamp,
2005  av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
2006  decoded_frame->key_frame, decoded_frame->pict_type,
2007  ist->st->time_base.num, ist->st->time_base.den);
2008  }
2009 
2010  pkt->size = 0;
2011 
2012  if (ist->st->sample_aspect_ratio.num)
2013  decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
2014 
2015  resample_changed = ist->resample_width != decoded_frame->width ||
2016  ist->resample_height != decoded_frame->height ||
2017  ist->resample_pix_fmt != decoded_frame->format;
2018  if (resample_changed) {
2019  av_log(NULL, AV_LOG_INFO,
2020  "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
2021  ist->file_index, ist->st->index,
2023  decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
2024 
2025  ist->resample_width = decoded_frame->width;
2026  ist->resample_height = decoded_frame->height;
2027  ist->resample_pix_fmt = decoded_frame->format;
2028 
2029  for (i = 0; i < nb_filtergraphs; i++) {
2030  if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters &&
2031  configure_filtergraph(filtergraphs[i]) < 0) {
2032  av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
2033  exit_program(1);
2034  }
2035  }
2036  }
2037 
2038  frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
2039  for (i = 0; i < ist->nb_filters; i++) {
2040  if (!frame_sample_aspect->num)
2041  *frame_sample_aspect = ist->st->sample_aspect_ratio;
2042 
2043  if (i < ist->nb_filters - 1) {
2044  f = ist->filter_frame;
2045  err = av_frame_ref(f, decoded_frame);
2046  if (err < 0)
2047  break;
2048  } else
2049  f = decoded_frame;
2051  if (ret == AVERROR_EOF) {
2052  ret = 0; /* ignore */
2053  } else if (ret < 0) {
2054  av_log(NULL, AV_LOG_FATAL,
2055  "Failed to inject frame into filter network: %s\n", av_err2str(ret));
2056  exit_program(1);
2057  }
2058  }
2059 
2060 fail:
2062  av_frame_unref(decoded_frame);
2063  return err < 0 ? err : ret;
2064 }
2065 
2066 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
2067 {
2068  AVSubtitle subtitle;
2069  int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
2070  &subtitle, got_output, pkt);
2071 
2072  if (*got_output || ret<0 || pkt->size)
2073  decode_error_stat[ret<0] ++;
2074 
2075  if (ret < 0 || !*got_output) {
2076  if (!pkt->size)
2077  sub2video_flush(ist);
2078  return ret;
2079  }
2080 
2081  if (ist->fix_sub_duration) {
2082  int end = 1;
2083  if (ist->prev_sub.got_output) {
2084  end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
2085  1000, AV_TIME_BASE);
2086  if (end < ist->prev_sub.subtitle.end_display_time) {
2087  av_log(ist->dec_ctx, AV_LOG_DEBUG,
2088  "Subtitle duration reduced from %d to %d%s\n",
2090  end <= 0 ? ", dropping it" : "");
2092  }
2093  }
2094  FFSWAP(int, *got_output, ist->prev_sub.got_output);
2095  FFSWAP(int, ret, ist->prev_sub.ret);
2096  FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
2097  if (end <= 0)
2098  goto out;
2099  }
2100 
2101  if (!*got_output)
2102  return ret;
2103 
2104  sub2video_update(ist, &subtitle);
2105 
2106  if (!subtitle.num_rects)
2107  goto out;
2108 
2109  ist->frames_decoded++;
2110 
2111  for (i = 0; i < nb_output_streams; i++) {
2112  OutputStream *ost = output_streams[i];
2113 
2114  if (!check_output_constraints(ist, ost) || !ost->encoding_needed
2115  || ost->enc->type != AVMEDIA_TYPE_SUBTITLE)
2116  continue;
2117 
2118  do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
2119  }
2120 
2121 out:
2122  avsubtitle_free(&subtitle);
2123  return ret;
2124 }
2125 
2126 /* pkt = NULL means EOF (needed to flush decoder buffers) */
2128 {
2129  int ret = 0, i;
2130  int got_output = 0;
2131 
2132  AVPacket avpkt;
2133  if (!ist->saw_first_ts) {
2134  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;
2135  ist->pts = 0;
2136  if (pkt && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
2137  ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
2138  ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
2139  }
2140  ist->saw_first_ts = 1;
2141  }
2142 
2143  if (ist->next_dts == AV_NOPTS_VALUE)
2144  ist->next_dts = ist->dts;
2145  if (ist->next_pts == AV_NOPTS_VALUE)
2146  ist->next_pts = ist->pts;
2147 
2148  if (!pkt) {
2149  /* EOF handling */
2150  av_init_packet(&avpkt);
2151  avpkt.data = NULL;
2152  avpkt.size = 0;
2153  goto handle_eof;
2154  } else {
2155  avpkt = *pkt;
2156  }
2157 
2158  if (pkt->dts != AV_NOPTS_VALUE) {
2159  ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
2160  if (ist->dec_ctx->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
2161  ist->next_pts = ist->pts = ist->dts;
2162  }
2163 
2164  // while we have more to decode or while the decoder did output something on EOF
2165  while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
2166  int duration;
2167  handle_eof:
2168 
2169  ist->pts = ist->next_pts;
2170  ist->dts = ist->next_dts;
2171 
2172  if (avpkt.size && avpkt.size != pkt->size &&
2173  !(ist->dec->capabilities & CODEC_CAP_SUBFRAMES)) {
2175  "Multiple frames in a packet from stream %d\n", pkt->stream_index);
2176  ist->showed_multi_packet_warning = 1;
2177  }
2178 
2179  switch (ist->dec_ctx->codec_type) {
2180  case AVMEDIA_TYPE_AUDIO:
2181  ret = decode_audio (ist, &avpkt, &got_output);
2182  break;
2183  case AVMEDIA_TYPE_VIDEO:
2184  ret = decode_video (ist, &avpkt, &got_output);
2185  if (avpkt.duration) {
2186  duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
2187  } else if(ist->dec_ctx->framerate.num != 0 && ist->dec_ctx->framerate.den != 0) {
2189  duration = ((int64_t)AV_TIME_BASE *
2190  ist->dec_ctx->framerate.den * ticks) /
2192  } else
2193  duration = 0;
2194 
2195  if(ist->dts != AV_NOPTS_VALUE && duration) {
2196  ist->next_dts += duration;
2197  }else
2198  ist->next_dts = AV_NOPTS_VALUE;
2199 
2200  if (got_output)
2201  ist->next_pts += duration; //FIXME the duration is not correct in some cases
2202  break;
2203  case AVMEDIA_TYPE_SUBTITLE:
2204  ret = transcode_subtitles(ist, &avpkt, &got_output);
2205  break;
2206  default:
2207  return -1;
2208  }
2209 
2210  if (ret < 0)
2211  return ret;
2212 
2213  avpkt.dts=
2214  avpkt.pts= AV_NOPTS_VALUE;
2215 
2216  // touch data and size only if not EOF
2217  if (pkt) {
2219  ret = avpkt.size;
2220  avpkt.data += ret;
2221  avpkt.size -= ret;
2222  }
2223  if (!got_output) {
2224  continue;
2225  }
2226  if (got_output && !pkt)
2227  break;
2228  }
2229 
2230  /* handle stream copy */
2231  if (!ist->decoding_needed) {
2232  ist->dts = ist->next_dts;
2233  switch (ist->dec_ctx->codec_type) {
2234  case AVMEDIA_TYPE_AUDIO:
2235  ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
2236  ist->dec_ctx->sample_rate;
2237  break;
2238  case AVMEDIA_TYPE_VIDEO:
2239  if (ist->framerate.num) {
2240  // TODO: Remove work-around for c99-to-c89 issue 7
2241  AVRational time_base_q = AV_TIME_BASE_Q;
2242  int64_t next_dts = av_rescale_q(ist->next_dts, time_base_q, av_inv_q(ist->framerate));
2243  ist->next_dts = av_rescale_q(next_dts + 1, av_inv_q(ist->framerate), time_base_q);
2244  } else if (pkt->duration) {
2245  ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
2246  } else if(ist->dec_ctx->framerate.num != 0) {
2247  int ticks= av_stream_get_parser(ist->st) ? av_stream_get_parser(ist->st)->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
2248  ist->next_dts += ((int64_t)AV_TIME_BASE *
2249  ist->dec_ctx->framerate.den * ticks) /
2251  }
2252  break;
2253  }
2254  ist->pts = ist->dts;
2255  ist->next_pts = ist->next_dts;
2256  }
2257  for (i = 0; pkt && i < nb_output_streams; i++) {
2258  OutputStream *ost = output_streams[i];
2259 
2260  if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2261  continue;
2262 
2263  do_streamcopy(ist, ost, pkt);
2264  }
2265 
2266  return got_output;
2267 }
2268 
2269 static void print_sdp(void)
2270 {
2271  char sdp[16384];
2272  int i;
2273  AVFormatContext **avc = av_malloc_array(nb_output_files, sizeof(*avc));
2274 
2275  if (!avc)
2276  exit_program(1);
2277  for (i = 0; i < nb_output_files; i++)
2278  avc[i] = output_files[i]->ctx;
2279 
2280  av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
2281  printf("SDP:\n%s\n", sdp);
2282  fflush(stdout);
2283  av_freep(&avc);
2284 }
2285 
2287 {
2288  int i;
2289  for (i = 0; hwaccels[i].name; i++)
2290  if (hwaccels[i].pix_fmt == pix_fmt)
2291  return &hwaccels[i];
2292  return NULL;
2293 }
2294 
2295 static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
2296 {
2297  InputStream *ist = s->opaque;
2298  const enum AVPixelFormat *p;
2299  int ret;
2300 
2301  for (p = pix_fmts; *p != -1; p++) {
2302  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
2303  const HWAccel *hwaccel;
2304 
2305  if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
2306  break;
2307 
2308  hwaccel = get_hwaccel(*p);
2309  if (!hwaccel ||
2310  (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
2311  (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
2312  continue;
2313 
2314  ret = hwaccel->init(s);
2315  if (ret < 0) {
2316  if (ist->hwaccel_id == hwaccel->id) {
2317  av_log(NULL, AV_LOG_FATAL,
2318  "%s hwaccel requested for input stream #%d:%d, "
2319  "but cannot be initialized.\n", hwaccel->name,
2320  ist->file_index, ist->st->index);
2321  exit_program(1);
2322  }
2323  continue;
2324  }
2325  ist->active_hwaccel_id = hwaccel->id;
2326  ist->hwaccel_pix_fmt = *p;
2327  break;
2328  }
2329 
2330  return *p;
2331 }
2332 
2334 {
2335  InputStream *ist = s->opaque;
2336 
2337  if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
2338  return ist->hwaccel_get_buffer(s, frame, flags);
2339 
2340  return avcodec_default_get_buffer2(s, frame, flags);
2341 }
2342 
2343 static int init_input_stream(int ist_index, char *error, int error_len)
2344 {
2345  int ret;
2346  InputStream *ist = input_streams[ist_index];
2347 
2348  if (ist->decoding_needed) {
2349  AVCodec *codec = ist->dec;
2350  if (!codec) {
2351  snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
2352  avcodec_get_name(ist->dec_ctx->codec_id), ist->file_index, ist->st->index);
2353  return AVERROR(EINVAL);
2354  }
2355 
2356  ist->dec_ctx->opaque = ist;
2357  ist->dec_ctx->get_format = get_format;
2358  ist->dec_ctx->get_buffer2 = get_buffer;
2359  ist->dec_ctx->thread_safe_callbacks = 1;
2360 
2361  av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
2362  if (ist->dec_ctx->codec_id == AV_CODEC_ID_DVB_SUBTITLE &&
2363  (ist->decoding_needed & DECODING_FOR_OST)) {
2364  av_dict_set(&ist->decoder_opts, "compute_edt", "1", AV_DICT_DONT_OVERWRITE);
2366  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");
2367  }
2368 
2369  if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
2370  av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
2371  if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
2372  if (ret == AVERROR_EXPERIMENTAL)
2373  abort_codec_experimental(codec, 0);
2374 
2375  snprintf(error, error_len,
2376  "Error while opening decoder for input stream "
2377  "#%d:%d : %s",
2378  ist->file_index, ist->st->index, av_err2str(ret));
2379  return ret;
2380  }
2382  }
2383 
2384  ist->next_pts = AV_NOPTS_VALUE;
2385  ist->next_dts = AV_NOPTS_VALUE;
2386 
2387  return 0;
2388 }
2389 
2391 {
2392  if (ost->source_index >= 0)
2393  return input_streams[ost->source_index];
2394  return NULL;
2395 }
2396 
2397 static int compare_int64(const void *a, const void *b)
2398 {
2399  int64_t va = *(int64_t *)a, vb = *(int64_t *)b;
2400  return va < vb ? -1 : va > vb ? +1 : 0;
2401 }
2402 
2403 static void parse_forced_key_frames(char *kf, OutputStream *ost,
2404  AVCodecContext *avctx)
2405 {
2406  char *p;
2407  int n = 1, i, size, index = 0;
2408  int64_t t, *pts;
2409 
2410  for (p = kf; *p; p++)
2411  if (*p == ',')
2412  n++;
2413  size = n;
2414  pts = av_malloc_array(size, sizeof(*pts));
2415  if (!pts) {
2416  av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2417  exit_program(1);
2418  }
2419 
2420  p = kf;
2421  for (i = 0; i < n; i++) {
2422  char *next = strchr(p, ',');
2423 
2424  if (next)
2425  *next++ = 0;
2426 
2427  if (!memcmp(p, "chapters", 8)) {
2428 
2429  AVFormatContext *avf = output_files[ost->file_index]->ctx;
2430  int j;
2431 
2432  if (avf->nb_chapters > INT_MAX - size ||
2433  !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
2434  sizeof(*pts)))) {
2435  av_log(NULL, AV_LOG_FATAL,
2436  "Could not allocate forced key frames array.\n");
2437  exit_program(1);
2438  }
2439  t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
2440  t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2441 
2442  for (j = 0; j < avf->nb_chapters; j++) {
2443  AVChapter *c = avf->chapters[j];
2444  av_assert1(index < size);
2445  pts[index++] = av_rescale_q(c->start, c->time_base,
2446  avctx->time_base) + t;
2447  }
2448 
2449  } else {
2450 
2451  t = parse_time_or_die("force_key_frames", p, 1);
2452  av_assert1(index < size);
2453  pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2454 
2455  }
2456 
2457  p = next;
2458  }
2459 
2460  av_assert0(index == size);
2461  qsort(pts, size, sizeof(*pts), compare_int64);
2462  ost->forced_kf_count = size;
2463  ost->forced_kf_pts = pts;
2464 }
2465 
2466 static void report_new_stream(int input_index, AVPacket *pkt)
2467 {
2468  InputFile *file = input_files[input_index];
2469  AVStream *st = file->ctx->streams[pkt->stream_index];
2470 
2471  if (pkt->stream_index < file->nb_streams_warn)
2472  return;
2473  av_log(file->ctx, AV_LOG_WARNING,
2474  "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
2476  input_index, pkt->stream_index,
2477  pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
2478  file->nb_streams_warn = pkt->stream_index + 1;
2479 }
2480 
2482 {
2483  AVDictionaryEntry *e;
2484 
2485  uint8_t *encoder_string;
2486  int encoder_string_len;
2487  int format_flags = 0;
2488  int codec_flags = 0;
2489 
2490  if (av_dict_get(ost->st->metadata, "encoder", NULL, 0))
2491  return;
2492 
2493  e = av_dict_get(of->opts, "fflags", NULL, 0);
2494  if (e) {
2495  const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
2496  if (!o)
2497  return;
2498  av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
2499  }
2500  e = av_dict_get(ost->encoder_opts, "flags", NULL, 0);
2501  if (e) {
2502  const AVOption *o = av_opt_find(ost->enc_ctx, "flags", NULL, 0, 0);
2503  if (!o)
2504  return;
2505  av_opt_eval_flags(ost->enc_ctx, o, e->value, &codec_flags);
2506  }
2507 
2508  encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
2509  encoder_string = av_mallocz(encoder_string_len);
2510  if (!encoder_string)
2511  exit_program(1);
2512 
2513  if (!(format_flags & AVFMT_FLAG_BITEXACT) && !(codec_flags & CODEC_FLAG_BITEXACT))
2514  av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
2515  else
2516  av_strlcpy(encoder_string, "Lavc ", encoder_string_len);
2517  av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
2518  av_dict_set(&ost->st->metadata, "encoder", encoder_string,
2520 }
2521 
2522 static int transcode_init(void)
2523 {
2524  int ret = 0, i, j, k;
2525  AVFormatContext *oc;
2526  OutputStream *ost;
2527  InputStream *ist;
2528  char error[1024];
2529  int want_sdp = 1;
2530 
2531  for (i = 0; i < nb_filtergraphs; i++) {
2532  FilterGraph *fg = filtergraphs[i];
2533  for (j = 0; j < fg->nb_outputs; j++) {
2534  OutputFilter *ofilter = fg->outputs[j];
2535  if (!ofilter->ost || ofilter->ost->source_index >= 0)
2536  continue;
2537  if (fg->nb_inputs != 1)
2538  continue;
2539  for (k = nb_input_streams-1; k >= 0 ; k--)
2540  if (fg->inputs[0]->ist == input_streams[k])
2541  break;
2542  ofilter->ost->source_index = k;
2543  }
2544  }
2545 
2546  /* init framerate emulation */
2547  for (i = 0; i < nb_input_files; i++) {
2548  InputFile *ifile = input_files[i];
2549  if (ifile->rate_emu)
2550  for (j = 0; j < ifile->nb_streams; j++)
2551  input_streams[j + ifile->ist_index]->start = av_gettime_relative();
2552  }
2553 
2554  /* output stream init */
2555  for (i = 0; i < nb_output_files; i++) {
2556  oc = output_files[i]->ctx;
2557  if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2558  av_dump_format(oc, i, oc->filename, 1);
2559  av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2560  return AVERROR(EINVAL);
2561  }
2562  }
2563 
2564  /* init complex filtergraphs */
2565  for (i = 0; i < nb_filtergraphs; i++)
2566  if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2567  return ret;
2568 
2569  /* for each output stream, we compute the right encoding parameters */
2570  for (i = 0; i < nb_output_streams; i++) {
2571  AVCodecContext *enc_ctx;
2572  AVCodecContext *dec_ctx = NULL;
2573  ost = output_streams[i];
2574  oc = output_files[ost->file_index]->ctx;
2575  ist = get_input_stream(ost);
2576 
2577  if (ost->attachment_filename)
2578  continue;
2579 
2580  enc_ctx = ost->enc_ctx;
2581 
2582  if (ist) {
2583  dec_ctx = ist->dec_ctx;
2584 
2585  ost->st->disposition = ist->st->disposition;
2586  enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
2587  enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
2588  } else {
2589  for (j=0; j<oc->nb_streams; j++) {
2590  AVStream *st = oc->streams[j];
2591  if (st != ost->st && st->codec->codec_type == enc_ctx->codec_type)
2592  break;
2593  }
2594  if (j == oc->nb_streams)
2595  if (enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO || enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
2597  }
2598 
2599  if (ost->stream_copy) {
2600  AVRational sar;
2601  uint64_t extra_size;
2602 
2603  av_assert0(ist && !ost->filter);
2604 
2605  extra_size = (uint64_t)dec_ctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2606 
2607  if (extra_size > INT_MAX) {
2608  return AVERROR(EINVAL);
2609  }
2610 
2611  /* if stream_copy is selected, no need to decode or encode */
2612  enc_ctx->codec_id = dec_ctx->codec_id;
2613  enc_ctx->codec_type = dec_ctx->codec_type;
2614 
2615  if (!enc_ctx->codec_tag) {
2616  unsigned int codec_tag;
2617  if (!oc->oformat->codec_tag ||
2618  av_codec_get_id (oc->oformat->codec_tag, dec_ctx->codec_tag) == enc_ctx->codec_id ||
2619  !av_codec_get_tag2(oc->oformat->codec_tag, dec_ctx->codec_id, &codec_tag))
2620  enc_ctx->codec_tag = dec_ctx->codec_tag;
2621  }
2622 
2623  enc_ctx->bit_rate = dec_ctx->bit_rate;
2624  enc_ctx->rc_max_rate = dec_ctx->rc_max_rate;
2625  enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size;
2626  enc_ctx->field_order = dec_ctx->field_order;
2627  enc_ctx->extradata = av_mallocz(extra_size);
2628  if (!enc_ctx->extradata) {
2629  return AVERROR(ENOMEM);
2630  }
2631  memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
2632  enc_ctx->extradata_size= dec_ctx->extradata_size;
2633  enc_ctx->bits_per_coded_sample = dec_ctx->bits_per_coded_sample;
2634 
2635  enc_ctx->time_base = ist->st->time_base;
2636  /*
2637  * Avi is a special case here because it supports variable fps but
2638  * having the fps and timebase differe significantly adds quite some
2639  * overhead
2640  */
2641  if(!strcmp(oc->oformat->name, "avi")) {
2642  if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
2643  && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
2644  && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(dec_ctx->time_base)
2645  && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(dec_ctx->time_base) < 1.0/500
2646  || copy_tb==2){
2647  enc_ctx->time_base.num = ist->st->r_frame_rate.den;
2648  enc_ctx->time_base.den = 2*ist->st->r_frame_rate.num;
2649  enc_ctx->ticks_per_frame = 2;
2650  } else if ( copy_tb<0 && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > 2*av_q2d(ist->st->time_base)
2651  && av_q2d(ist->st->time_base) < 1.0/500
2652  || copy_tb==0){
2653  enc_ctx->time_base = dec_ctx->time_base;
2654  enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
2655  enc_ctx->time_base.den *= 2;
2656  enc_ctx->ticks_per_frame = 2;
2657  }
2658  } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
2659  && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
2660  && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
2661  && strcmp(oc->oformat->name, "f4v")
2662  ) {
2663  if( copy_tb<0 && dec_ctx->time_base.den
2664  && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > av_q2d(ist->st->time_base)
2665  && av_q2d(ist->st->time_base) < 1.0/500
2666  || copy_tb==0){
2667  enc_ctx->time_base = dec_ctx->time_base;
2668  enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
2669  }
2670  }
2671  if ( enc_ctx->codec_tag == AV_RL32("tmcd")
2672  && dec_ctx->time_base.num < dec_ctx->time_base.den
2673  && dec_ctx->time_base.num > 0
2674  && 121LL*dec_ctx->time_base.num > dec_ctx->time_base.den) {
2675  enc_ctx->time_base = dec_ctx->time_base;
2676  }
2677 
2678  if (ist && !ost->frame_rate.num)
2679  ost->frame_rate = ist->framerate;
2680  if(ost->frame_rate.num)
2681  enc_ctx->time_base = av_inv_q(ost->frame_rate);
2682 
2683  av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den,
2684  enc_ctx->time_base.num, enc_ctx->time_base.den, INT_MAX);
2685 
2686  if (ist->st->nb_side_data) {
2687  ost->st->side_data = av_realloc_array(NULL, ist->st->nb_side_data,
2688  sizeof(*ist->st->side_data));
2689  if (!ost->st->side_data)
2690  return AVERROR(ENOMEM);
2691 
2692  for (j = 0; j < ist->st->nb_side_data; j++) {
2693  const AVPacketSideData *sd_src = &ist->st->side_data[j];
2694  AVPacketSideData *sd_dst = &ost->st->side_data[j];
2695 
2696  sd_dst->data = av_malloc(sd_src->size);
2697  if (!sd_dst->data)
2698  return AVERROR(ENOMEM);
2699  memcpy(sd_dst->data, sd_src->data, sd_src->size);
2700  sd_dst->size = sd_src->size;
2701  sd_dst->type = sd_src->type;
2702  ost->st->nb_side_data++;
2703  }
2704  }
2705 
2706  ost->parser = av_parser_init(enc_ctx->codec_id);
2707 
2708  switch (enc_ctx->codec_type) {
2709  case AVMEDIA_TYPE_AUDIO:
2710  if (audio_volume != 256) {
2711  av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2712  exit_program(1);
2713  }
2714  enc_ctx->channel_layout = dec_ctx->channel_layout;
2715  enc_ctx->sample_rate = dec_ctx->sample_rate;
2716  enc_ctx->channels = dec_ctx->channels;
2717  enc_ctx->frame_size = dec_ctx->frame_size;
2718  enc_ctx->audio_service_type = dec_ctx->audio_service_type;
2719  enc_ctx->block_align = dec_ctx->block_align;
2720  enc_ctx->initial_padding = dec_ctx->delay;
2721 #if FF_API_AUDIOENC_DELAY
2722  enc_ctx->delay = dec_ctx->delay;
2723 #endif
2724  if((enc_ctx->block_align == 1 || enc_ctx->block_align == 1152 || enc_ctx->block_align == 576) && enc_ctx->codec_id == AV_CODEC_ID_MP3)
2725  enc_ctx->block_align= 0;
2726  if(enc_ctx->codec_id == AV_CODEC_ID_AC3)
2727  enc_ctx->block_align= 0;
2728  break;
2729  case AVMEDIA_TYPE_VIDEO:
2730  enc_ctx->pix_fmt = dec_ctx->pix_fmt;
2731  enc_ctx->width = dec_ctx->width;
2732  enc_ctx->height = dec_ctx->height;
2733  enc_ctx->has_b_frames = dec_ctx->has_b_frames;
2734  if (ost->frame_aspect_ratio.num) { // overridden by the -aspect cli option
2735  sar =
2737  (AVRational){ enc_ctx->height, enc_ctx->width });
2738  av_log(NULL, AV_LOG_WARNING, "Overriding aspect ratio "
2739  "with stream copy may produce invalid files\n");
2740  }
2741  else if (ist->st->sample_aspect_ratio.num)
2742  sar = ist->st->sample_aspect_ratio;
2743  else
2744  sar = dec_ctx->sample_aspect_ratio;
2745  ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio = sar;
2746  ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2747  ost->st->r_frame_rate = ist->st->r_frame_rate;
2748  break;
2749  case AVMEDIA_TYPE_SUBTITLE:
2750  enc_ctx->width = dec_ctx->width;
2751  enc_ctx->height = dec_ctx->height;
2752  break;
2753  case AVMEDIA_TYPE_DATA:
2755  break;
2756  default:
2757  abort();
2758  }
2759  } else {
2760  if (!ost->enc)
2761  ost->enc = avcodec_find_encoder(enc_ctx->codec_id);
2762  if (!ost->enc) {
2763  /* should only happen when a default codec is not present. */
2764  snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2765  avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2766  ret = AVERROR(EINVAL);
2767  goto dump_format;
2768  }
2769 
2770  if (ist)
2772  ost->encoding_needed = 1;
2773 
2774  set_encoder_id(output_files[ost->file_index], ost);
2775 
2776  if (!ost->filter &&
2777  (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
2778  enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO)) {
2779  FilterGraph *fg;
2780  fg = init_simple_filtergraph(ist, ost);
2781  if (configure_filtergraph(fg)) {
2782  av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2783  exit_program(1);
2784  }
2785  }
2786 
2787  if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
2788  if (ost->filter && !ost->frame_rate.num)
2790  if (ist && !ost->frame_rate.num)
2791  ost->frame_rate = ist->framerate;
2792  if (ist && !ost->frame_rate.num)
2793  ost->frame_rate = ist->st->r_frame_rate;
2794  if (ist && !ost->frame_rate.num) {
2795  ost->frame_rate = (AVRational){25, 1};
2796  av_log(NULL, AV_LOG_WARNING,
2797  "No information "
2798  "about the input framerate is available. Falling "
2799  "back to a default value of 25fps for output stream #%d:%d. Use the -r option "
2800  "if you want a different framerate.\n",
2801  ost->file_index, ost->index);
2802  }
2803 // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2804  if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2806  ost->frame_rate = ost->enc->supported_framerates[idx];
2807  }
2808  if (enc_ctx->codec_id == AV_CODEC_ID_MPEG4) {
2809  av_reduce(&ost->frame_rate.num, &ost->frame_rate.den,
2810  ost->frame_rate.num, ost->frame_rate.den, 65535);
2811  }
2812  }
2813 
2814  switch (enc_ctx->codec_type) {
2815  case AVMEDIA_TYPE_AUDIO:
2816  enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format;
2817  enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2818  enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2819  enc_ctx->channels = avfilter_link_get_channels(ost->filter->filter->inputs[0]);
2820  enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
2821  break;
2822  case AVMEDIA_TYPE_VIDEO:
2823  enc_ctx->time_base = av_inv_q(ost->frame_rate);
2824  if (ost->filter && !(enc_ctx->time_base.num && enc_ctx->time_base.den))
2825  enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
2826  if ( av_q2d(enc_ctx->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
2828  av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
2829  "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
2830  }
2831  for (j = 0; j < ost->forced_kf_count; j++)
2832  ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2834  enc_ctx->time_base);
2835 
2836  enc_ctx->width = ost->filter->filter->inputs[0]->w;
2837  enc_ctx->height = ost->filter->filter->inputs[0]->h;
2838  enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2839  ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option
2840  av_mul_q(ost->frame_aspect_ratio, (AVRational){ enc_ctx->height, enc_ctx->width }) :
2842  if (!strncmp(ost->enc->name, "libx264", 7) &&
2843  enc_ctx->pix_fmt == AV_PIX_FMT_NONE &&
2845  av_log(NULL, AV_LOG_WARNING,
2846  "No pixel format specified, %s for H.264 encoding chosen.\n"
2847  "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2849  if (!strncmp(ost->enc->name, "mpeg2video", 10) &&
2850  enc_ctx->pix_fmt == AV_PIX_FMT_NONE &&
2852  av_log(NULL, AV_LOG_WARNING,
2853  "No pixel format specified, %s for MPEG-2 encoding chosen.\n"
2854  "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2856  enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
2857 
2858  ost->st->avg_frame_rate = ost->frame_rate;
2859 
2860  if (!dec_ctx ||
2861  enc_ctx->width != dec_ctx->width ||
2862  enc_ctx->height != dec_ctx->height ||
2863  enc_ctx->pix_fmt != dec_ctx->pix_fmt) {
2864  enc_ctx->bits_per_raw_sample = frame_bits_per_raw_sample;
2865  }
2866 
2867  if (ost->forced_keyframes) {
2868  if (!strncmp(ost->forced_keyframes, "expr:", 5)) {
2870  forced_keyframes_const_names, NULL, NULL, NULL, NULL, 0, NULL);
2871  if (ret < 0) {
2872  av_log(NULL, AV_LOG_ERROR,
2873  "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5);
2874  return ret;
2875  }
2880  } else {
2882  }
2883  }
2884  break;
2885  case AVMEDIA_TYPE_SUBTITLE:
2886  enc_ctx->time_base = (AVRational){1, 1000};
2887  if (!enc_ctx->width) {
2888  enc_ctx->width = input_streams[ost->source_index]->st->codec->width;
2889  enc_ctx->height = input_streams[ost->source_index]->st->codec->height;
2890  }
2891  break;
2892  default:
2893  abort();
2894  break;
2895  }
2896  /* two pass mode */
2897  if (enc_ctx->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
2898  char logfilename[1024];
2899  FILE *f;
2900 
2901  snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2902  ost->logfile_prefix ? ost->logfile_prefix :
2904  i);
2905  if (!strcmp(ost->enc->name, "libx264")) {
2906  av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2907  } else {
2908  if (enc_ctx->flags & CODEC_FLAG_PASS2) {
2909  char *logbuffer;
2910  size_t logbuffer_size;
2911  if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2912  av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2913  logfilename);
2914  exit_program(1);
2915  }
2916  enc_ctx->stats_in = logbuffer;
2917  }
2918  if (enc_ctx->flags & CODEC_FLAG_PASS1) {
2919  f = av_fopen_utf8(logfilename, "wb");
2920  if (!f) {
2921  av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2922  logfilename, strerror(errno));
2923  exit_program(1);
2924  }
2925  ost->logfile = f;
2926  }
2927  }
2928  }
2929  }
2930  }
2931 
2932  /* open each encoder */
2933  for (i = 0; i < nb_output_streams; i++) {
2934  ost = output_streams[i];
2935  if (ost->encoding_needed) {
2936  AVCodec *codec = ost->enc;
2937  AVCodecContext *dec = NULL;
2938 
2939  if ((ist = get_input_stream(ost)))
2940  dec = ist->dec_ctx;
2941  if (dec && dec->subtitle_header) {
2942  /* ASS code assumes this buffer is null terminated so add extra byte. */
2943  ost->enc_ctx->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
2944  if (!ost->enc_ctx->subtitle_header) {
2945  ret = AVERROR(ENOMEM);
2946  goto dump_format;
2947  }
2948  memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2949  ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
2950  }
2951  if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
2952  av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
2953  av_dict_set(&ost->encoder_opts, "side_data_only_packets", "1", 0);
2954 
2955  if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
2956  if (ret == AVERROR_EXPERIMENTAL)
2957  abort_codec_experimental(codec, 1);
2958  snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2959  ost->file_index, ost->index);
2960  goto dump_format;
2961  }
2962  if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
2963  !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
2964  av_buffersink_set_frame_size(ost->filter->filter,
2965  ost->enc_ctx->frame_size);
2966  assert_avoptions(ost->encoder_opts);
2967  if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000)
2968  av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2969  " It takes bits/s as argument, not kbits/s\n");
2970  } else {
2971  ret = av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts);
2972  if (ret < 0) {
2973  av_log(NULL, AV_LOG_FATAL,
2974  "Error setting up codec context options.\n");
2975  return ret;
2976  }
2977  }
2978 
2979  ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx);
2980  if (ret < 0) {
2981  av_log(NULL, AV_LOG_FATAL,
2982  "Error initializing the output stream codec context.\n");
2983  exit_program(1);
2984  }
2985  ost->st->codec->codec= ost->enc_ctx->codec;
2986 
2987  // copy timebase while removing common factors
2988  ost->st->time_base = av_add_q(ost->enc_ctx->time_base, (AVRational){0, 1});
2989  }
2990 
2991  /* init input streams */
2992  for (i = 0; i < nb_input_streams; i++)
2993  if ((ret = init_input_stream(i, error, sizeof(error))) < 0) {
2994  for (i = 0; i < nb_output_streams; i++) {
2995  ost = output_streams[i];
2996  avcodec_close(ost->enc_ctx);
2997  }
2998  goto dump_format;
2999  }
3000 
3001  /* discard unused programs */
3002  for (i = 0; i < nb_input_files; i++) {
3003  InputFile *ifile = input_files[i];
3004  for (j = 0; j < ifile->ctx->nb_programs; j++) {
3005  AVProgram *p = ifile->ctx->programs[j];
3006  int discard = AVDISCARD_ALL;
3007 
3008  for (k = 0; k < p->nb_stream_indexes; k++)
3009  if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
3010  discard = AVDISCARD_DEFAULT;
3011  break;
3012  }
3013  p->discard = discard;
3014  }
3015  }
3016 
3017  /* open files and write file headers */
3018  for (i = 0; i < nb_output_files; i++) {
3019  oc = output_files[i]->ctx;
3020  oc->interrupt_callback = int_cb;
3021  if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
3022  snprintf(error, sizeof(error),
3023  "Could not write header for output file #%d "
3024  "(incorrect codec parameters ?): %s",
3025  i, av_err2str(ret));
3026  ret = AVERROR(EINVAL);
3027  goto dump_format;
3028  }
3029 // assert_avoptions(output_files[i]->opts);
3030  if (strcmp(oc->oformat->name, "rtp")) {
3031  want_sdp = 0;
3032  }
3033  }
3034 
3035  dump_format:
3036  /* dump the file output parameters - cannot be done before in case
3037  of stream copy */
3038  for (i = 0; i < nb_output_files; i++) {
3039  av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
3040  }
3041 
3042  /* dump the stream mapping */
3043  av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
3044  for (i = 0; i < nb_input_streams; i++) {
3045  ist = input_streams[i];
3046 
3047  for (j = 0; j < ist->nb_filters; j++) {
3048  if (ist->filters[j]->graph->graph_desc) {
3049  av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
3050  ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
3051  ist->filters[j]->name);
3052  if (nb_filtergraphs > 1)
3053  av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
3054  av_log(NULL, AV_LOG_INFO, "\n");
3055  }
3056  }
3057  }
3058 
3059  for (i = 0; i < nb_output_streams; i++) {
3060  ost = output_streams[i];
3061 
3062  if (ost->attachment_filename) {
3063  /* an attached file */
3064  av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
3065  ost->attachment_filename, ost->file_index, ost->index);
3066  continue;
3067  }
3068 
3069  if (ost->filter && ost->filter->graph->graph_desc) {
3070  /* output from a complex graph */
3071  av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
3072  if (nb_filtergraphs > 1)
3073  av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
3074 
3075  av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
3076  ost->index, ost->enc ? ost->enc->name : "?");
3077  continue;
3078  }
3079 
3080  av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
3081  input_streams[ost->source_index]->file_index,
3082  input_streams[ost->source_index]->st->index,
3083  ost->file_index,
3084  ost->index);
3085  if (ost->sync_ist != input_streams[ost->source_index])
3086  av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
3087  ost->sync_ist->file_index,
3088  ost->sync_ist->st->index);
3089  if (ost->stream_copy)
3090  av_log(NULL, AV_LOG_INFO, " (copy)");
3091  else {
3092  const AVCodec *in_codec = input_streams[ost->source_index]->dec;
3093  const AVCodec *out_codec = ost->enc;
3094  const char *decoder_name = "?";
3095  const char *in_codec_name = "?";
3096  const char *encoder_name = "?";
3097  const char *out_codec_name = "?";
3098 
3099  if (in_codec) {
3100  decoder_name = in_codec->name;
3101  in_codec_name = avcodec_descriptor_get(in_codec->id)->name;
3102  if (!strcmp(decoder_name, in_codec_name))
3103  decoder_name = "native";
3104  }
3105 
3106  if (out_codec) {
3107  encoder_name = out_codec->name;
3108  out_codec_name = avcodec_descriptor_get(out_codec->id)->name;
3109  if (!strcmp(encoder_name, out_codec_name))
3110  encoder_name = "native";
3111  }
3112 
3113  av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
3114  in_codec_name, decoder_name,
3115  out_codec_name, encoder_name);
3116  }
3117  av_log(NULL, AV_LOG_INFO, "\n");
3118  }
3119 
3120  if (ret) {
3121  av_log(NULL, AV_LOG_ERROR, "%s\n", error);
3122  return ret;
3123  }
3124 
3125  if (want_sdp) {
3126  print_sdp();
3127  }
3128 
3129  transcode_init_done = 1;
3130 
3131  return 0;
3132 }
3133 
3134 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
3135 static int need_output(void)
3136 {
3137  int i;
3138 
3139  for (i = 0; i < nb_output_streams; i++) {
3140  OutputStream *ost = output_streams[i];
3141  OutputFile *of = output_files[ost->file_index];
3142  AVFormatContext *os = output_files[ost->file_index]->ctx;
3143 
3144  if (ost->finished ||
3145  (os->pb && avio_tell(os->pb) >= of->limit_filesize))
3146  continue;
3147  if (ost->frame_number >= ost->max_frames) {
3148  int j;
3149  for (j = 0; j < of->ctx->nb_streams; j++)
3150  close_output_stream(output_streams[of->ost_index + j]);
3151  continue;
3152  }
3153 
3154  return 1;
3155  }
3156 
3157  return 0;
3158 }
3159 
3160 /**
3161  * Select the output stream to process.
3162  *
3163  * @return selected output stream, or NULL if none available
3164  */
3166 {
3167  int i;
3168  int64_t opts_min = INT64_MAX;
3169  OutputStream *ost_min = NULL;
3170 
3171  for (i = 0; i < nb_output_streams; i++) {
3172  OutputStream *ost = output_streams[i];
3173  int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
3174  AV_TIME_BASE_Q);
3175  if (!ost->finished && opts < opts_min) {
3176  opts_min = opts;
3177  ost_min = ost->unavailable ? NULL : ost;
3178  }
3179  }
3180  return ost_min;
3181 }
3182 
3184 {
3185  int i, ret, key;
3186  static int64_t last_time;
3187  if (received_nb_signals)
3188  return AVERROR_EXIT;
3189  /* read_key() returns 0 on EOF */
3190  if(cur_time - last_time >= 100000 && !run_as_daemon){
3191  key = read_key();
3192  last_time = cur_time;
3193  }else
3194  key = -1;
3195  if (key == 'q')
3196  return AVERROR_EXIT;
3197  if (key == '+') av_log_set_level(av_log_get_level()+10);
3198  if (key == '-') av_log_set_level(av_log_get_level()-10);
3199  if (key == 's') qp_hist ^= 1;
3200  if (key == 'h'){
3201  if (do_hex_dump){
3202  do_hex_dump = do_pkt_dump = 0;
3203  } else if(do_pkt_dump){
3204  do_hex_dump = 1;
3205  } else
3206  do_pkt_dump = 1;
3208  }
3209  if (key == 'c' || key == 'C'){
3210  char buf[4096], target[64], command[256], arg[256] = {0};
3211  double time;
3212  int k, n = 0;
3213  fprintf(stderr, "\nEnter command: <target>|all <time>|-1 <command>[ <argument>]\n");
3214  i = 0;
3215  while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
3216  if (k > 0)
3217  buf[i++] = k;
3218  buf[i] = 0;
3219  if (k > 0 &&
3220  (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
3221  av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
3222  target, time, command, arg);
3223  for (i = 0; i < nb_filtergraphs; i++) {
3224  FilterGraph *fg = filtergraphs[i];
3225  if (fg->graph) {
3226  if (time < 0) {
3227  ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
3228  key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
3229  fprintf(stderr, "Command reply for stream %d: ret:%d res:\n%s", i, ret, buf);
3230  } else if (key == 'c') {
3231  fprintf(stderr, "Queing commands only on filters supporting the specific command is unsupported\n");
3232  ret = AVERROR_PATCHWELCOME;
3233  } else {
3234  ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
3235  }
3236  }
3237  }
3238  } else {
3239  av_log(NULL, AV_LOG_ERROR,
3240  "Parse error, at least 3 arguments were expected, "
3241  "only %d given in string '%s'\n", n, buf);
3242  }
3243  }
3244  if (key == 'd' || key == 'D'){
3245  int debug=0;
3246  if(key == 'D') {
3247  debug = input_streams[0]->st->codec->debug<<1;
3248  if(!debug) debug = 1;
3249  while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
3250  debug += debug;
3251  }else
3252  if(scanf("%d", &debug)!=1)
3253  fprintf(stderr,"error parsing debug value\n");
3254  for(i=0;i<nb_input_streams;i++) {
3255  input_streams[i]->st->codec->debug = debug;
3256  }
3257  for(i=0;i<nb_output_streams;i++) {
3258  OutputStream *ost = output_streams[i];
3259  ost->enc_ctx->debug = debug;
3260  }
3261  if(debug) av_log_set_level(AV_LOG_DEBUG);
3262  fprintf(stderr,"debug=%d\n", debug);
3263  }
3264  if (key == '?'){
3265  fprintf(stderr, "key function\n"
3266  "? show this help\n"
3267  "+ increase verbosity\n"
3268  "- decrease verbosity\n"
3269  "c Send command to first matching filter supporting it\n"
3270  "C Send/Que command to all matching filters\n"
3271  "D cycle through available debug modes\n"
3272  "h dump packets/hex press to cycle through the 3 states\n"
3273  "q quit\n"
3274  "s Show QP histogram\n"
3275  );
3276  }
3277  return 0;
3278 }
3279 
3280 #if HAVE_PTHREADS
3281 static void *input_thread(void *arg)
3282 {
3283  InputFile *f = arg;
3284  int ret = 0;
3285 
3286  while (1) {
3287  AVPacket pkt;
3288  ret = av_read_frame(f->ctx, &pkt);
3289 
3290  if (ret == AVERROR(EAGAIN)) {
3291  av_usleep(10000);
3292  continue;
3293  }
3294  if (ret < 0) {
3295  av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
3296  break;
3297  }
3298  av_dup_packet(&pkt);
3299  ret = av_thread_message_queue_send(f->in_thread_queue, &pkt, 0);
3300  if (ret < 0) {
3301  if (ret != AVERROR_EOF)
3302  av_log(f->ctx, AV_LOG_ERROR,
3303  "Unable to send packet to main thread: %s\n",
3304  av_err2str(ret));
3305  av_free_packet(&pkt);
3306  av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
3307  break;
3308  }
3309  }
3310 
3311  return NULL;
3312 }
3313 
3314 static void free_input_threads(void)
3315 {
3316  int i;
3317 
3318  for (i = 0; i < nb_input_files; i++) {
3319  InputFile *f = input_files[i];
3320  AVPacket pkt;
3321 
3322  if (!f->in_thread_queue)
3323  continue;
3325  while (av_thread_message_queue_recv(f->in_thread_queue, &pkt, 0) >= 0)
3326  av_free_packet(&pkt);
3327 
3328  pthread_join(f->thread, NULL);
3329  f->joined = 1;
3330  av_thread_message_queue_free(&f->in_thread_queue);
3331  }
3332 }
3333 
3334 static int init_input_threads(void)
3335 {
3336  int i, ret;
3337 
3338  if (nb_input_files == 1)
3339  return 0;
3340 
3341  for (i = 0; i < nb_input_files; i++) {
3342  InputFile *f = input_files[i];
3343 
3344  if (f->ctx->pb ? !f->ctx->pb->seekable :
3345  strcmp(f->ctx->iformat->name, "lavfi"))
3346  f->non_blocking = 1;
3347  ret = av_thread_message_queue_alloc(&f->in_thread_queue,
3348  8, sizeof(AVPacket));
3349  if (ret < 0)
3350  return ret;
3351 
3352  if ((ret = pthread_create(&f->thread, NULL, input_thread, f))) {
3353  av_log(NULL, AV_LOG_ERROR, "pthread_create failed: %s. Try to increase `ulimit -v` or decrease `ulimit -s`.\n", strerror(ret));
3354  av_thread_message_queue_free(&f->in_thread_queue);
3355  return AVERROR(ret);
3356  }
3357  }
3358  return 0;
3359 }
3360 
3361 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
3362 {
3363  return av_thread_message_queue_recv(f->in_thread_queue, pkt,
3364  f->non_blocking ?
3366 }
3367 #endif
3368 
3370 {
3371  if (f->rate_emu) {
3372  int i;
3373  for (i = 0; i < f->nb_streams; i++) {
3374  InputStream *ist = input_streams[f->ist_index + i];
3375  int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
3376  int64_t now = av_gettime_relative() - ist->start;
3377  if (pts > now)
3378  return AVERROR(EAGAIN);
3379  }
3380  }
3381 
3382 #if HAVE_PTHREADS
3383  if (nb_input_files > 1)
3384  return get_input_packet_mt(f, pkt);
3385 #endif
3386  return av_read_frame(f->ctx, pkt);
3387 }
3388 
3389 static int got_eagain(void)
3390 {
3391  int i;
3392  for (i = 0; i < nb_output_streams; i++)
3393  if (output_streams[i]->unavailable)
3394  return 1;
3395  return 0;
3396 }
3397 
3398 static void reset_eagain(void)
3399 {
3400  int i;
3401  for (i = 0; i < nb_input_files; i++)
3402  input_files[i]->eagain = 0;
3403  for (i = 0; i < nb_output_streams; i++)
3404  output_streams[i]->unavailable = 0;
3405 }
3406 
3407 /*
3408  * Return
3409  * - 0 -- one packet was read and processed
3410  * - AVERROR(EAGAIN) -- no packets were available for selected file,
3411  * this function should be called again
3412  * - AVERROR_EOF -- this function should not be called again
3413  */
3414 static int process_input(int file_index)
3415 {
3416  InputFile *ifile = input_files[file_index];
3417  AVFormatContext *is;
3418  InputStream *ist;
3419  AVPacket pkt;
3420  int ret, i, j;
3421 
3422  is = ifile->ctx;
3423  ret = get_input_packet(ifile, &pkt);
3424 
3425  if (ret == AVERROR(EAGAIN)) {
3426  ifile->eagain = 1;
3427  return ret;
3428  }
3429  if (ret < 0) {
3430  if (ret != AVERROR_EOF) {
3431  print_error(is->filename, ret);
3432  if (exit_on_error)
3433  exit_program(1);
3434  }
3435 
3436  for (i = 0; i < ifile->nb_streams; i++) {
3437  ist = input_streams[ifile->ist_index + i];
3438  if (ist->decoding_needed) {
3439  ret = process_input_packet(ist, NULL);
3440  if (ret>0)
3441  return 0;
3442  }
3443 
3444  /* mark all outputs that don't go through lavfi as finished */
3445  for (j = 0; j < nb_output_streams; j++) {
3446  OutputStream *ost = output_streams[j];
3447 
3448  if (ost->source_index == ifile->ist_index + i &&
3449  (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
3450  finish_output_stream(ost);
3451  }
3452  }
3453 
3454  ifile->eof_reached = 1;
3455  return AVERROR(EAGAIN);
3456  }
3457 
3458  reset_eagain();
3459 
3460  if (do_pkt_dump) {
3462  is->streams[pkt.stream_index]);
3463  }
3464  /* the following test is needed in case new streams appear
3465  dynamically in stream : we ignore them */
3466  if (pkt.stream_index >= ifile->nb_streams) {
3467  report_new_stream(file_index, &pkt);
3468  goto discard_packet;
3469  }
3470 
3471  ist = input_streams[ifile->ist_index + pkt.stream_index];
3472 
3473  ist->data_size += pkt.size;
3474  ist->nb_packets++;
3475 
3476  if (ist->discard)
3477  goto discard_packet;
3478 
3479  if (debug_ts) {
3480  av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
3481  "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",
3485  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3486  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3487  av_ts2str(input_files[ist->file_index]->ts_offset),
3488  av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3489  }
3490 
3491  if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
3492  int64_t stime, stime2;
3493  // Correcting starttime based on the enabled streams
3494  // 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.
3495  // so we instead do it here as part of discontinuity handling
3496  if ( ist->next_dts == AV_NOPTS_VALUE
3497  && ifile->ts_offset == -is->start_time
3498  && (is->iformat->flags & AVFMT_TS_DISCONT)) {
3499  int64_t new_start_time = INT64_MAX;
3500  for (i=0; i<is->nb_streams; i++) {
3501  AVStream *st = is->streams[i];
3502  if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
3503  continue;
3504  new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
3505  }
3506  if (new_start_time > is->start_time) {
3507  av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
3508  ifile->ts_offset = -new_start_time;
3509  }
3510  }
3511 
3512  stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
3513  stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
3514  ist->wrap_correction_done = 1;
3515 
3516  if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
3517  pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
3518  ist->wrap_correction_done = 0;
3519  }
3520  if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
3521  pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
3522  ist->wrap_correction_done = 0;
3523  }
3524  }
3525 
3526  /* add the stream-global side data to the first packet */
3527  if (ist->nb_packets == 1) {
3528  if (ist->st->nb_side_data)
3530  for (i = 0; i < ist->st->nb_side_data; i++) {
3531  AVPacketSideData *src_sd = &ist->st->side_data[i];
3532  uint8_t *dst_data;
3533 
3534  if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
3535  continue;
3536 
3537  dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
3538  if (!dst_data)
3539  exit_program(1);
3540 
3541  memcpy(dst_data, src_sd->data, src_sd->size);
3542  }
3543  }
3544 
3545  if (pkt.dts != AV_NOPTS_VALUE)
3546  pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3547  if (pkt.pts != AV_NOPTS_VALUE)
3548  pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3549 
3550  if (pkt.pts != AV_NOPTS_VALUE)
3551  pkt.pts *= ist->ts_scale;
3552  if (pkt.dts != AV_NOPTS_VALUE)
3553  pkt.dts *= ist->ts_scale;
3554 
3555  if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
3557  pkt.dts != AV_NOPTS_VALUE && ist->next_dts == AV_NOPTS_VALUE && !copy_ts
3558  && (is->iformat->flags & AVFMT_TS_DISCONT) && ifile->last_ts != AV_NOPTS_VALUE) {
3559  int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3560  int64_t delta = pkt_dts - ifile->last_ts;
3561  if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3562  delta > 1LL*dts_delta_threshold*AV_TIME_BASE){
3563  ifile->ts_offset -= delta;
3564  av_log(NULL, AV_LOG_DEBUG,
3565  "Inter stream timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3566  delta, ifile->ts_offset);
3567  pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3568  if (pkt.pts != AV_NOPTS_VALUE)
3569  pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3570  }
3571  }
3572 
3573  if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
3575  pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
3576  !copy_ts) {
3577  int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3578  int64_t delta = pkt_dts - ist->next_dts;
3579  if (is->iformat->flags & AVFMT_TS_DISCONT) {
3580  if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3581  delta > 1LL*dts_delta_threshold*AV_TIME_BASE ||
3582  pkt_dts + AV_TIME_BASE/10 < FFMAX(ist->pts, ist->dts)) {
3583  ifile->ts_offset -= delta;
3584  av_log(NULL, AV_LOG_DEBUG,
3585  "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3586  delta, ifile->ts_offset);
3587  pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3588  if (pkt.pts != AV_NOPTS_VALUE)
3589  pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3590  }
3591  } else {
3592  if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3593  delta > 1LL*dts_error_threshold*AV_TIME_BASE) {
3594  av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
3595  pkt.dts = AV_NOPTS_VALUE;
3596  }
3597  if (pkt.pts != AV_NOPTS_VALUE){
3598  int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
3599  delta = pkt_pts - ist->next_dts;
3600  if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3601  delta > 1LL*dts_error_threshold*AV_TIME_BASE) {
3602  av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
3603  pkt.pts = AV_NOPTS_VALUE;
3604  }
3605  }
3606  }
3607  }
3608 
3609  if (pkt.dts != AV_NOPTS_VALUE)
3610  ifile->last_ts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3611 
3612  if (debug_ts) {
3613  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",
3615  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3616  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3617  av_ts2str(input_files[ist->file_index]->ts_offset),
3618  av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3619  }
3620 
3621  sub2video_heartbeat(ist, pkt.pts);
3622 
3623  ret = process_input_packet(ist, &pkt);
3624  if (ret < 0) {
3625  av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
3626  ist->file_index, ist->st->index, av_err2str(ret));
3627  if (exit_on_error)
3628  exit_program(1);
3629  }
3630 
3631 discard_packet:
3632  av_free_packet(&pkt);
3633 
3634  return 0;
3635 }
3636 
3637 /**
3638  * Perform a step of transcoding for the specified filter graph.
3639  *
3640  * @param[in] graph filter graph to consider
3641  * @param[out] best_ist input stream where a frame would allow to continue
3642  * @return 0 for success, <0 for error
3643  */
3644 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
3645 {
3646  int i, ret;
3647  int nb_requests, nb_requests_max = 0;
3648  InputFilter *ifilter;
3649  InputStream *ist;
3650 
3651  *best_ist = NULL;
3652  ret = avfilter_graph_request_oldest(graph->graph);
3653  if (ret >= 0)
3654  return reap_filters();
3655 
3656  if (ret == AVERROR_EOF) {
3657  ret = reap_filters();
3658  for (i = 0; i < graph->nb_outputs; i++)
3659  close_output_stream(graph->outputs[i]->ost);
3660  return ret;
3661  }
3662  if (ret != AVERROR(EAGAIN))
3663  return ret;
3664 
3665  for (i = 0; i < graph->nb_inputs; i++) {
3666  ifilter = graph->inputs[i];
3667  ist = ifilter->ist;
3668  if (input_files[ist->file_index]->eagain ||
3669  input_files[ist->file_index]->eof_reached)
3670  continue;
3671  nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
3672  if (nb_requests > nb_requests_max) {
3673  nb_requests_max = nb_requests;
3674  *best_ist = ist;
3675  }
3676  }
3677 
3678  if (!*best_ist)
3679  for (i = 0; i < graph->nb_outputs; i++)
3680  graph->outputs[i]->ost->unavailable = 1;
3681 
3682  return 0;
3683 }
3684 
3685 /**
3686  * Run a single step of transcoding.
3687  *
3688  * @return 0 for success, <0 for error
3689  */
3690 static int transcode_step(void)
3691 {
3692  OutputStream *ost;
3693  InputStream *ist;
3694  int ret;
3695 
3696  ost = choose_output();
3697  if (!ost) {
3698  if (got_eagain()) {
3699  reset_eagain();
3700  av_usleep(10000);
3701  return 0;
3702  }
3703  av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
3704  return AVERROR_EOF;
3705  }
3706 
3707  if (ost->filter) {
3708  if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
3709  return ret;
3710  if (!ist)
3711  return 0;
3712  } else {
3713  av_assert0(ost->source_index >= 0);
3714  ist = input_streams[ost->source_index];
3715  }
3716 
3717  ret = process_input(ist->file_index);
3718  if (ret == AVERROR(EAGAIN)) {
3719  if (input_files[ist->file_index]->eagain)
3720  ost->unavailable = 1;
3721  return 0;
3722  }
3723  if (ret < 0)
3724  return ret == AVERROR_EOF ? 0 : ret;
3725 
3726  return reap_filters();
3727 }
3728 
3729 /*
3730  * The following code is the main loop of the file converter
3731  */
3732 static int transcode(void)
3733 {
3734  int ret, i;
3735  AVFormatContext *os;
3736  OutputStream *ost;
3737  InputStream *ist;
3738  int64_t timer_start;
3739 
3740  ret = transcode_init();
3741  if (ret < 0)
3742  goto fail;
3743 
3744  if (stdin_interaction) {
3745  av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
3746  }
3747 
3748  timer_start = av_gettime_relative();
3749 
3750 #if HAVE_PTHREADS
3751  if ((ret = init_input_threads()) < 0)
3752  goto fail;
3753 #endif
3754 
3755  while (!received_sigterm) {
3756  int64_t cur_time= av_gettime_relative();
3757 
3758  /* if 'q' pressed, exits */
3759  if (stdin_interaction)
3760  if (check_keyboard_interaction(cur_time) < 0)
3761  break;
3762 
3763  /* check if there's any stream where output is still needed */
3764  if (!need_output()) {
3765  av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3766  break;
3767  }
3768 
3769  ret = transcode_step();
3770  if (ret < 0) {
3771  if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
3772  continue;
3773 
3774  av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
3775  break;
3776  }
3777 
3778  /* dump report by using the output first video and audio streams */
3779  print_report(0, timer_start, cur_time);
3780  }
3781 #if HAVE_PTHREADS
3783 #endif
3784 
3785  /* at the end of stream, we must flush the decoder buffers */
3786  for (i = 0; i < nb_input_streams; i++) {
3787  ist = input_streams[i];
3788  if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
3789  process_input_packet(ist, NULL);
3790  }
3791  }
3792  flush_encoders();
3793 
3794  term_exit();
3795 
3796  /* write the trailer if needed and close file */
3797  for (i = 0; i < nb_output_files; i++) {
3798  os = output_files[i]->ctx;
3799  av_write_trailer(os);
3800  }
3801 
3802  /* dump report by using the first video and audio streams */
3803  print_report(1, timer_start, av_gettime_relative());
3804 
3805  /* close each encoder */
3806  for (i = 0; i < nb_output_streams; i++) {
3807  ost = output_streams[i];
3808  if (ost->encoding_needed) {
3809  av_freep(&ost->enc_ctx->stats_in);
3810  }
3811  }
3812 
3813  /* close each decoder */
3814  for (i = 0; i < nb_input_streams; i++) {
3815  ist = input_streams[i];
3816  if (ist->decoding_needed) {
3817  avcodec_close(ist->dec_ctx);
3818  if (ist->hwaccel_uninit)
3819  ist->hwaccel_uninit(ist->dec_ctx);
3820  }
3821  }
3822 
3823  /* finished ! */
3824  ret = 0;
3825 
3826  fail:
3827 #if HAVE_PTHREADS
3829 #endif
3830 
3831  if (output_streams) {
3832  for (i = 0; i < nb_output_streams; i++) {
3833  ost = output_streams[i];
3834  if (ost) {
3835  if (ost->logfile) {
3836  fclose(ost->logfile);
3837  ost->logfile = NULL;
3838  }
3839  av_freep(&ost->forced_kf_pts);
3840  av_freep(&ost->apad);
3841  av_dict_free(&ost->encoder_opts);
3842  av_dict_free(&ost->swr_opts);
3843  av_dict_free(&ost->resample_opts);
3844  av_dict_free(&ost->bsf_args);
3845  }
3846  }
3847  }
3848  return ret;
3849 }
3850 
3851 
3852 static int64_t getutime(void)
3853 {
3854 #if HAVE_GETRUSAGE
3855  struct rusage rusage;
3856 
3857  getrusage(RUSAGE_SELF, &rusage);
3858  return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3859 #elif HAVE_GETPROCESSTIMES
3860  HANDLE proc;
3861  FILETIME c, e, k, u;
3862  proc = GetCurrentProcess();
3863  GetProcessTimes(proc, &c, &e, &k, &u);
3864  return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3865 #else
3866  return av_gettime_relative();
3867 #endif
3868 }
3869 
3870 static int64_t getmaxrss(void)
3871 {
3872 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3873  struct rusage rusage;
3874  getrusage(RUSAGE_SELF, &rusage);
3875  return (int64_t)rusage.ru_maxrss * 1024;
3876 #elif HAVE_GETPROCESSMEMORYINFO
3877  HANDLE proc;
3878  PROCESS_MEMORY_COUNTERS memcounters;
3879  proc = GetCurrentProcess();
3880  memcounters.cb = sizeof(memcounters);
3881  GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3882  return memcounters.PeakPagefileUsage;
3883 #else
3884  return 0;
3885 #endif
3886 }
3887 
3888 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
3889 {
3890 }
3891 
3892 int main(int argc, char **argv)
3893 {
3894  int ret;
3895  int64_t ti;
3896 
3898 
3899  setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
3900 
3902  parse_loglevel(argc, argv, options);
3903 
3904  if(argc>1 && !strcmp(argv[1], "-d")){
3905  run_as_daemon=1;
3907  argc--;
3908  argv++;
3909  }
3910 
3912 #if CONFIG_AVDEVICE
3914 #endif
3916  av_register_all();
3918 
3919  show_banner(argc, argv, options);
3920 
3921  term_init();
3922 
3923  /* parse options and open all input/output files */
3924  ret = ffmpeg_parse_options(argc, argv);
3925  if (ret < 0)
3926  exit_program(1);
3927 
3928  if (nb_output_files <= 0 && nb_input_files == 0) {
3929  show_usage();
3930  av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3931  exit_program(1);
3932  }
3933 
3934  /* file converter / grab */
3935  if (nb_output_files <= 0) {
3936  av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
3937  exit_program(1);
3938  }
3939 
3940 // if (nb_input_files == 0) {
3941 // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
3942 // exit_program(1);
3943 // }
3944 
3945  current_time = ti = getutime();
3946  if (transcode() < 0)
3947  exit_program(1);
3948  ti = getutime() - ti;
3949  if (do_benchmark) {
3950  printf("bench: utime=%0.3fs\n", ti / 1000000.0);
3951  }
3952  av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n",
3955  exit_program(69);
3956 
3958  return main_return_code;
3959 }