FFmpeg
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ffmpeg.c
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1 /*
2  * Copyright (c) 2000-2003 Fabrice Bellard
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 /**
22  * @file
23  * multimedia converter based on the FFmpeg libraries
24  */
25 
26 #include "config.h"
27 #include <ctype.h>
28 #include <string.h>
29 #include <math.h>
30 #include <stdlib.h>
31 #include <errno.h>
32 #include <limits.h>
33 #include <stdint.h>
34 
35 #if HAVE_ISATTY
36 #if HAVE_IO_H
37 #include <io.h>
38 #endif
39 #if HAVE_UNISTD_H
40 #include <unistd.h>
41 #endif
42 #endif
43 
44 #include "libavformat/avformat.h"
45 #include "libavdevice/avdevice.h"
47 #include "libavutil/opt.h"
49 #include "libavutil/parseutils.h"
50 #include "libavutil/samplefmt.h"
51 #include "libavutil/fifo.h"
52 #include "libavutil/intreadwrite.h"
53 #include "libavutil/dict.h"
54 #include "libavutil/mathematics.h"
55 #include "libavutil/pixdesc.h"
56 #include "libavutil/avstring.h"
57 #include "libavutil/libm.h"
58 #include "libavutil/imgutils.h"
59 #include "libavutil/timestamp.h"
60 #include "libavutil/bprint.h"
61 #include "libavutil/time.h"
63 #include "libavformat/os_support.h"
64 
65 #include "libavformat/ffm.h" // not public API
66 
67 # include "libavfilter/avcodec.h"
68 # include "libavfilter/avfilter.h"
69 # include "libavfilter/buffersrc.h"
70 # include "libavfilter/buffersink.h"
71 
72 #if HAVE_SYS_RESOURCE_H
73 #include <sys/time.h>
74 #include <sys/types.h>
75 #include <sys/resource.h>
76 #elif HAVE_GETPROCESSTIMES
77 #include <windows.h>
78 #endif
79 #if HAVE_GETPROCESSMEMORYINFO
80 #include <windows.h>
81 #include <psapi.h>
82 #endif
83 
84 #if HAVE_SYS_SELECT_H
85 #include <sys/select.h>
86 #endif
87 
88 #if HAVE_TERMIOS_H
89 #include <fcntl.h>
90 #include <sys/ioctl.h>
91 #include <sys/time.h>
92 #include <termios.h>
93 #elif HAVE_KBHIT
94 #include <conio.h>
95 #endif
96 
97 #if HAVE_PTHREADS
98 #include <pthread.h>
99 #endif
100 
101 #include <time.h>
102 
103 #include "ffmpeg.h"
104 #include "cmdutils.h"
105 
106 #include "libavutil/avassert.h"
107 
108 const char program_name[] = "ffmpeg";
109 const int program_birth_year = 2000;
110 
111 static FILE *vstats_file;
112 
113 const char *const forced_keyframes_const_names[] = {
114  "n",
115  "n_forced",
116  "prev_forced_n",
117  "prev_forced_t",
118  "t",
119  NULL
120 };
121 
122 static void do_video_stats(OutputStream *ost, int frame_size);
123 static int64_t getutime(void);
124 static int64_t getmaxrss(void);
125 
126 static int run_as_daemon = 0;
127 static int nb_frames_dup = 0;
128 static int nb_frames_drop = 0;
129 static int64_t decode_error_stat[2];
130 
131 static int current_time;
133 
135 
136 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
137 
142 
147 
150 
151 #if HAVE_TERMIOS_H
152 
153 /* init terminal so that we can grab keys */
154 static struct termios oldtty;
155 static int restore_tty;
156 #endif
157 
158 static void free_input_threads(void);
159 
160 
161 /* sub2video hack:
162  Convert subtitles to video with alpha to insert them in filter graphs.
163  This is a temporary solution until libavfilter gets real subtitles support.
164  */
165 
167 {
168  int ret;
169  AVFrame *frame = ist->sub2video.frame;
170 
171  av_frame_unref(frame);
172  ist->sub2video.frame->width = ist->sub2video.w;
173  ist->sub2video.frame->height = ist->sub2video.h;
175  if ((ret = av_frame_get_buffer(frame, 32)) < 0)
176  return ret;
177  memset(frame->data[0], 0, frame->height * frame->linesize[0]);
178  return 0;
179 }
180 
181 static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h,
182  AVSubtitleRect *r)
183 {
184  uint32_t *pal, *dst2;
185  uint8_t *src, *src2;
186  int x, y;
187 
188  if (r->type != SUBTITLE_BITMAP) {
189  av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n");
190  return;
191  }
192  if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) {
193  av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle overflowing\n");
194  return;
195  }
196 
197  dst += r->y * dst_linesize + r->x * 4;
198  src = r->pict.data[0];
199  pal = (uint32_t *)r->pict.data[1];
200  for (y = 0; y < r->h; y++) {
201  dst2 = (uint32_t *)dst;
202  src2 = src;
203  for (x = 0; x < r->w; x++)
204  *(dst2++) = pal[*(src2++)];
205  dst += dst_linesize;
206  src += r->pict.linesize[0];
207  }
208 }
209 
210 static void sub2video_push_ref(InputStream *ist, int64_t pts)
211 {
212  AVFrame *frame = ist->sub2video.frame;
213  int i;
214 
215  av_assert1(frame->data[0]);
216  ist->sub2video.last_pts = frame->pts = pts;
217  for (i = 0; i < ist->nb_filters; i++)
221 }
222 
223 static void sub2video_update(InputStream *ist, AVSubtitle *sub)
224 {
225  int w = ist->sub2video.w, h = ist->sub2video.h;
226  AVFrame *frame = ist->sub2video.frame;
227  int8_t *dst;
228  int dst_linesize;
229  int num_rects, i;
230  int64_t pts, end_pts;
231 
232  if (!frame)
233  return;
234  if (sub) {
235  pts = av_rescale_q(sub->pts + sub->start_display_time * 1000LL,
236  AV_TIME_BASE_Q, ist->st->time_base);
237  end_pts = av_rescale_q(sub->pts + sub->end_display_time * 1000LL,
238  AV_TIME_BASE_Q, ist->st->time_base);
239  num_rects = sub->num_rects;
240  } else {
241  pts = ist->sub2video.end_pts;
242  end_pts = INT64_MAX;
243  num_rects = 0;
244  }
245  if (sub2video_get_blank_frame(ist) < 0) {
247  "Impossible to get a blank canvas.\n");
248  return;
249  }
250  dst = frame->data [0];
251  dst_linesize = frame->linesize[0];
252  for (i = 0; i < num_rects; i++)
253  sub2video_copy_rect(dst, dst_linesize, w, h, sub->rects[i]);
254  sub2video_push_ref(ist, pts);
255  ist->sub2video.end_pts = end_pts;
256 }
257 
258 static void sub2video_heartbeat(InputStream *ist, int64_t pts)
259 {
260  InputFile *infile = input_files[ist->file_index];
261  int i, j, nb_reqs;
262  int64_t pts2;
263 
264  /* When a frame is read from a file, examine all sub2video streams in
265  the same file and send the sub2video frame again. Otherwise, decoded
266  video frames could be accumulating in the filter graph while a filter
267  (possibly overlay) is desperately waiting for a subtitle frame. */
268  for (i = 0; i < infile->nb_streams; i++) {
269  InputStream *ist2 = input_streams[infile->ist_index + i];
270  if (!ist2->sub2video.frame)
271  continue;
272  /* subtitles seem to be usually muxed ahead of other streams;
273  if not, subtracting a larger time here is necessary */
274  pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
275  /* do not send the heartbeat frame if the subtitle is already ahead */
276  if (pts2 <= ist2->sub2video.last_pts)
277  continue;
278  if (pts2 >= ist2->sub2video.end_pts || !ist2->sub2video.frame->data[0])
279  sub2video_update(ist2, NULL);
280  for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
281  nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
282  if (nb_reqs)
283  sub2video_push_ref(ist2, pts2);
284  }
285 }
286 
287 static void sub2video_flush(InputStream *ist)
288 {
289  int i;
290 
291  if (ist->sub2video.end_pts < INT64_MAX)
292  sub2video_update(ist, NULL);
293  for (i = 0; i < ist->nb_filters; i++)
294  av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
295 }
296 
297 /* end of sub2video hack */
298 
299 static void term_exit_sigsafe(void)
300 {
301 #if HAVE_TERMIOS_H
302  if(restore_tty)
303  tcsetattr (0, TCSANOW, &oldtty);
304 #endif
305 }
306 
307 void term_exit(void)
308 {
309  av_log(NULL, AV_LOG_QUIET, "%s", "");
311 }
312 
313 static volatile int received_sigterm = 0;
314 static volatile int received_nb_signals = 0;
315 static volatile int transcode_init_done = 0;
316 static int main_return_code = 0;
317 
318 static void
320 {
321  received_sigterm = sig;
324  if(received_nb_signals > 3)
325  exit(123);
326 }
327 
328 void term_init(void)
329 {
330 #if HAVE_TERMIOS_H
331  if(!run_as_daemon){
332  struct termios tty;
333  int istty = 1;
334 #if HAVE_ISATTY
335  istty = isatty(0) && isatty(2);
336 #endif
337  if (istty && tcgetattr (0, &tty) == 0) {
338  oldtty = tty;
339  restore_tty = 1;
340 
341  tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
342  |INLCR|IGNCR|ICRNL|IXON);
343  tty.c_oflag |= OPOST;
344  tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
345  tty.c_cflag &= ~(CSIZE|PARENB);
346  tty.c_cflag |= CS8;
347  tty.c_cc[VMIN] = 1;
348  tty.c_cc[VTIME] = 0;
349 
350  tcsetattr (0, TCSANOW, &tty);
351  }
352  signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
353  }
354 #endif
356 
357  signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
358  signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
359 #ifdef SIGXCPU
360  signal(SIGXCPU, sigterm_handler);
361 #endif
362 }
363 
364 /* read a key without blocking */
365 static int read_key(void)
366 {
367  unsigned char ch;
368 #if HAVE_TERMIOS_H
369  int n = 1;
370  struct timeval tv;
371  fd_set rfds;
372 
373  FD_ZERO(&rfds);
374  FD_SET(0, &rfds);
375  tv.tv_sec = 0;
376  tv.tv_usec = 0;
377  n = select(1, &rfds, NULL, NULL, &tv);
378  if (n > 0) {
379  n = read(0, &ch, 1);
380  if (n == 1)
381  return ch;
382 
383  return n;
384  }
385 #elif HAVE_KBHIT
386 # if HAVE_PEEKNAMEDPIPE
387  static int is_pipe;
388  static HANDLE input_handle;
389  DWORD dw, nchars;
390  if(!input_handle){
391  input_handle = GetStdHandle(STD_INPUT_HANDLE);
392  is_pipe = !GetConsoleMode(input_handle, &dw);
393  }
394 
395  if (stdin->_cnt > 0) {
396  read(0, &ch, 1);
397  return ch;
398  }
399  if (is_pipe) {
400  /* When running under a GUI, you will end here. */
401  if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL)) {
402  // input pipe may have been closed by the program that ran ffmpeg
403  return -1;
404  }
405  //Read it
406  if(nchars != 0) {
407  read(0, &ch, 1);
408  return ch;
409  }else{
410  return -1;
411  }
412  }
413 # endif
414  if(kbhit())
415  return(getch());
416 #endif
417  return -1;
418 }
419 
420 static int decode_interrupt_cb(void *ctx)
421 {
423 }
424 
426 
427 static void ffmpeg_cleanup(int ret)
428 {
429  int i, j;
430 
431  if (do_benchmark) {
432  int maxrss = getmaxrss() / 1024;
433  printf("bench: maxrss=%ikB\n", maxrss);
434  }
435 
436  for (i = 0; i < nb_filtergraphs; i++) {
437  FilterGraph *fg = filtergraphs[i];
439  for (j = 0; j < fg->nb_inputs; j++) {
440  av_freep(&fg->inputs[j]->name);
441  av_freep(&fg->inputs[j]);
442  }
443  av_freep(&fg->inputs);
444  for (j = 0; j < fg->nb_outputs; j++) {
445  av_freep(&fg->outputs[j]->name);
446  av_freep(&fg->outputs[j]);
447  }
448  av_freep(&fg->outputs);
449  av_freep(&fg->graph_desc);
450 
451  av_freep(&filtergraphs[i]);
452  }
453  av_freep(&filtergraphs);
454 
456 
457  /* close files */
458  for (i = 0; i < nb_output_files; i++) {
459  OutputFile *of = output_files[i];
460  AVFormatContext *s = of->ctx;
461  if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE) && 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 
479  av_parser_close(ost->parser);
480 
481  av_freep(&ost->forced_keyframes);
483  av_freep(&ost->avfilter);
484  av_freep(&ost->logfile_prefix);
485 
487 
488  av_freep(&output_streams[i]);
489  }
490 #if HAVE_PTHREADS
492 #endif
493  for (i = 0; i < nb_input_files; i++) {
494  avformat_close_input(&input_files[i]->ctx);
495  av_freep(&input_files[i]);
496  }
497  for (i = 0; i < nb_input_streams; i++) {
498  InputStream *ist = input_streams[i];
499 
502  av_dict_free(&ist->decoder_opts);
505  av_freep(&ist->filters);
506  av_freep(&ist->hwaccel_device);
507 
509 
510  av_freep(&input_streams[i]);
511  }
512 
513  if (vstats_file)
514  fclose(vstats_file);
516 
517  av_freep(&input_streams);
518  av_freep(&input_files);
519  av_freep(&output_streams);
520  av_freep(&output_files);
521 
522  uninit_opts();
523 
525 
526  if (received_sigterm) {
527  av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
528  (int) received_sigterm);
529  } else if (ret && transcode_init_done) {
530  av_log(NULL, AV_LOG_INFO, "Conversion failed!\n");
531  }
532  term_exit();
533 }
534 
536 {
538  if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
539  av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
540  exit_program(1);
541  }
542 }
543 
544 static void abort_codec_experimental(AVCodec *c, int encoder)
545 {
546  exit_program(1);
547 }
548 
549 static void update_benchmark(const char *fmt, ...)
550 {
551  if (do_benchmark_all) {
552  int64_t t = getutime();
553  va_list va;
554  char buf[1024];
555 
556  if (fmt) {
557  va_start(va, fmt);
558  vsnprintf(buf, sizeof(buf), fmt, va);
559  va_end(va);
560  printf("bench: %8"PRIu64" %s \n", t - current_time, buf);
561  }
562  current_time = t;
563  }
564 }
565 
566 static void close_all_output_streams(OutputStream *ost, OSTFinished this_stream, OSTFinished others)
567 {
568  int i;
569  for (i = 0; i < nb_output_streams; i++) {
570  OutputStream *ost2 = output_streams[i];
571  ost2->finished |= ost == ost2 ? this_stream : others;
572  }
573 }
574 
576 {
578  AVCodecContext *avctx = ost->st->codec;
579  int ret;
580 
583  pkt->pts = pkt->dts = AV_NOPTS_VALUE;
584 
585  /*
586  * Audio encoders may split the packets -- #frames in != #packets out.
587  * But there is no reordering, so we can limit the number of output packets
588  * by simply dropping them here.
589  * Counting encoded video frames needs to be done separately because of
590  * reordering, see do_video_out()
591  */
592  if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
593  if (ost->frame_number >= ost->max_frames) {
594  av_free_packet(pkt);
595  return;
596  }
597  ost->frame_number++;
598  }
599 
600  if (bsfc)
602 
603  while (bsfc) {
604  AVPacket new_pkt = *pkt;
605  int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
606  &new_pkt.data, &new_pkt.size,
607  pkt->data, pkt->size,
608  pkt->flags & AV_PKT_FLAG_KEY);
609  if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) {
610  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
611  if(t) {
612  memcpy(t, new_pkt.data, new_pkt.size);
613  memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
614  new_pkt.data = t;
615  new_pkt.buf = NULL;
616  a = 1;
617  } else
618  a = AVERROR(ENOMEM);
619  }
620  if (a > 0) {
621  av_free_packet(pkt);
622  new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
623  av_buffer_default_free, NULL, 0);
624  if (!new_pkt.buf)
625  exit_program(1);
626  } else if (a < 0) {
627  av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
628  bsfc->filter->name, pkt->stream_index,
629  avctx->codec ? avctx->codec->name : "copy");
630  print_error("", a);
631  if (exit_on_error)
632  exit_program(1);
633  }
634  *pkt = new_pkt;
635 
636  bsfc = bsfc->next;
637  }
638 
639  if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS)) {
640  if(
641  (avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) &&
642  pkt->dts != AV_NOPTS_VALUE &&
643  ost->last_mux_dts != AV_NOPTS_VALUE) {
644  int64_t max = ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
645  if (pkt->dts < max) {
646  int loglevel = max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG;
647  av_log(s, loglevel, "Non-monotonous DTS in output stream "
648  "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
649  ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
650  if (exit_on_error) {
651  av_log(NULL, AV_LOG_FATAL, "aborting.\n");
652  exit_program(1);
653  }
654  av_log(s, loglevel, "changing to %"PRId64". This may result "
655  "in incorrect timestamps in the output file.\n",
656  max);
657  if(pkt->pts >= pkt->dts)
658  pkt->pts = FFMAX(pkt->pts, max);
659  pkt->dts = max;
660  }
661  }
662  if (pkt->dts != AV_NOPTS_VALUE &&
663  pkt->pts != AV_NOPTS_VALUE &&
664  pkt->dts > pkt->pts) {
665  av_log(s, AV_LOG_WARNING, "Invalid DTS: %"PRId64" PTS: %"PRId64" in output stream %d:%d\n",
666  pkt->dts, pkt->pts,
667  ost->file_index, ost->st->index);
668  pkt->pts = AV_NOPTS_VALUE;
669  pkt->dts = AV_NOPTS_VALUE;
670  }
671  }
672  ost->last_mux_dts = pkt->dts;
673 
674  ost->data_size += pkt->size;
675  ost->packets_written++;
676 
677  pkt->stream_index = ost->index;
678 
679  if (debug_ts) {
680  av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
681  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
683  av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
684  av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
685  pkt->size
686  );
687  }
688 
689  ret = av_interleaved_write_frame(s, pkt);
690  if (ret < 0) {
691  print_error("av_interleaved_write_frame()", ret);
692  main_return_code = 1;
694  }
695  av_free_packet(pkt);
696 }
697 
699 {
700  OutputFile *of = output_files[ost->file_index];
701 
702  ost->finished |= ENCODER_FINISHED;
703  if (of->shortest) {
704  int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, AV_TIME_BASE_Q);
705  of->recording_time = FFMIN(of->recording_time, end);
706  }
707 }
708 
710 {
711  OutputFile *of = output_files[ost->file_index];
712 
713  if (of->recording_time != INT64_MAX &&
715  AV_TIME_BASE_Q) >= 0) {
716  close_output_stream(ost);
717  return 0;
718  }
719  return 1;
720 }
721 
723  AVFrame *frame)
724 {
725  AVCodecContext *enc = ost->enc_ctx;
726  AVPacket pkt;
727  int got_packet = 0;
728 
729  av_init_packet(&pkt);
730  pkt.data = NULL;
731  pkt.size = 0;
732 
733  if (!check_recording_time(ost))
734  return;
735 
736  if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
737  frame->pts = ost->sync_opts;
738  ost->sync_opts = frame->pts + frame->nb_samples;
739  ost->samples_encoded += frame->nb_samples;
740  ost->frames_encoded++;
741 
742  av_assert0(pkt.size || !pkt.data);
743  update_benchmark(NULL);
744  if (debug_ts) {
745  av_log(NULL, AV_LOG_INFO, "encoder <- type:audio "
746  "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
747  av_ts2str(frame->pts), av_ts2timestr(frame->pts, &enc->time_base),
748  enc->time_base.num, enc->time_base.den);
749  }
750 
751  if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
752  av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
753  exit_program(1);
754  }
755  update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
756 
757  if (got_packet) {
758  av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
759 
760  if (debug_ts) {
761  av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
762  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
763  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
764  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
765  }
766 
767  write_frame(s, &pkt, ost);
768  }
769 }
770 
772  OutputStream *ost,
773  InputStream *ist,
774  AVSubtitle *sub)
775 {
776  int subtitle_out_max_size = 1024 * 1024;
777  int subtitle_out_size, nb, i;
778  AVCodecContext *enc;
779  AVPacket pkt;
780  int64_t pts;
781 
782  if (sub->pts == AV_NOPTS_VALUE) {
783  av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
784  if (exit_on_error)
785  exit_program(1);
786  return;
787  }
788 
789  enc = ost->enc_ctx;
790 
791  if (!subtitle_out) {
792  subtitle_out = av_malloc(subtitle_out_max_size);
793  }
794 
795  /* Note: DVB subtitle need one packet to draw them and one other
796  packet to clear them */
797  /* XXX: signal it in the codec context ? */
799  nb = 2;
800  else
801  nb = 1;
802 
803  /* shift timestamp to honor -ss and make check_recording_time() work with -t */
804  pts = sub->pts;
805  if (output_files[ost->file_index]->start_time != AV_NOPTS_VALUE)
806  pts -= output_files[ost->file_index]->start_time;
807  for (i = 0; i < nb; i++) {
808  unsigned save_num_rects = sub->num_rects;
809 
810  ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
811  if (!check_recording_time(ost))
812  return;
813 
814  sub->pts = pts;
815  // start_display_time is required to be 0
816  sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
818  sub->start_display_time = 0;
819  if (i == 1)
820  sub->num_rects = 0;
821 
822  ost->frames_encoded++;
823 
824  subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
825  subtitle_out_max_size, sub);
826  if (i == 1)
827  sub->num_rects = save_num_rects;
828  if (subtitle_out_size < 0) {
829  av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
830  exit_program(1);
831  }
832 
833  av_init_packet(&pkt);
834  pkt.data = subtitle_out;
835  pkt.size = subtitle_out_size;
836  pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
837  pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
838  if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
839  /* XXX: the pts correction is handled here. Maybe handling
840  it in the codec would be better */
841  if (i == 0)
842  pkt.pts += 90 * sub->start_display_time;
843  else
844  pkt.pts += 90 * sub->end_display_time;
845  }
846  pkt.dts = pkt.pts;
847  write_frame(s, &pkt, ost);
848  }
849 }
850 
852  OutputStream *ost,
853  AVFrame *in_picture)
854 {
855  int ret, format_video_sync;
856  AVPacket pkt;
857  AVCodecContext *enc = ost->enc_ctx;
858  AVCodecContext *mux_enc = ost->st->codec;
859  int nb_frames, i;
860  double sync_ipts, delta;
861  double duration = 0;
862  int frame_size = 0;
863  InputStream *ist = NULL;
864 
865  if (ost->source_index >= 0)
866  ist = input_streams[ost->source_index];
867 
868  if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
869  duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
870 
871  sync_ipts = in_picture->pts;
872  delta = sync_ipts - ost->sync_opts + duration;
873 
874  /* by default, we output a single frame */
875  nb_frames = 1;
876 
877  format_video_sync = video_sync_method;
878  if (format_video_sync == VSYNC_AUTO) {
879  if(!strcmp(s->oformat->name, "avi")) {
880  format_video_sync = VSYNC_VFR;
881  } else
883  if ( ist
884  && format_video_sync == VSYNC_CFR
885  && input_files[ist->file_index]->ctx->nb_streams == 1
886  && input_files[ist->file_index]->input_ts_offset == 0) {
887  format_video_sync = VSYNC_VSCFR;
888  }
889  if (format_video_sync == VSYNC_CFR && copy_ts) {
890  format_video_sync = VSYNC_VSCFR;
891  }
892  }
893 
894  switch (format_video_sync) {
895  case VSYNC_VSCFR:
896  if (ost->frame_number == 0 && delta - duration >= 0.5) {
897  av_log(NULL, AV_LOG_DEBUG, "Not duplicating %d initial frames\n", (int)lrintf(delta - duration));
898  delta = duration;
899  ost->sync_opts = lrint(sync_ipts);
900  }
901  case VSYNC_CFR:
902  // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
903  if (delta < -1.1)
904  nb_frames = 0;
905  else if (delta > 1.1)
906  nb_frames = lrintf(delta);
907  break;
908  case VSYNC_VFR:
909  if (delta <= -0.6)
910  nb_frames = 0;
911  else if (delta > 0.6)
912  ost->sync_opts = lrint(sync_ipts);
913  break;
914  case VSYNC_DROP:
915  case VSYNC_PASSTHROUGH:
916  ost->sync_opts = lrint(sync_ipts);
917  break;
918  default:
919  av_assert0(0);
920  }
921 
922  nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
923  if (nb_frames == 0) {
924  nb_frames_drop++;
925  av_log(NULL, AV_LOG_VERBOSE,
926  "*** dropping frame %d from stream %d at ts %"PRId64"\n",
927  ost->frame_number, ost->st->index, in_picture->pts);
928  return;
929  } else if (nb_frames > 1) {
930  if (nb_frames > dts_error_threshold * 30) {
931  av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
932  nb_frames_drop++;
933  return;
934  }
935  nb_frames_dup += nb_frames - 1;
936  av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
937  }
938 
939  /* duplicates frame if needed */
940  for (i = 0; i < nb_frames; i++) {
941  av_init_packet(&pkt);
942  pkt.data = NULL;
943  pkt.size = 0;
944 
945  in_picture->pts = ost->sync_opts;
946 
947 #if 1
948  if (!check_recording_time(ost))
949 #else
950  if (ost->frame_number >= ost->max_frames)
951 #endif
952  return;
953 
954  if (s->oformat->flags & AVFMT_RAWPICTURE &&
955  enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
956  /* raw pictures are written as AVPicture structure to
957  avoid any copies. We support temporarily the older
958  method. */
959  mux_enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
960  mux_enc->coded_frame->top_field_first = in_picture->top_field_first;
961  if (mux_enc->coded_frame->interlaced_frame)
963  else
965  pkt.data = (uint8_t *)in_picture;
966  pkt.size = sizeof(AVPicture);
967  pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
968  pkt.flags |= AV_PKT_FLAG_KEY;
969 
970  write_frame(s, &pkt, ost);
971  } else {
972  int got_packet, forced_keyframe = 0;
973  double pts_time;
974 
976  ost->top_field_first >= 0)
977  in_picture->top_field_first = !!ost->top_field_first;
978 
979  if (in_picture->interlaced_frame) {
980  if (enc->codec->id == AV_CODEC_ID_MJPEG)
981  mux_enc->field_order = in_picture->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
982  else
983  mux_enc->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
984  } else
986 
987  in_picture->quality = enc->global_quality;
988  if (!enc->me_threshold)
989  in_picture->pict_type = 0;
990 
991  pts_time = in_picture->pts != AV_NOPTS_VALUE ?
992  in_picture->pts * av_q2d(enc->time_base) : NAN;
993  if (ost->forced_kf_index < ost->forced_kf_count &&
994  in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
995  ost->forced_kf_index++;
996  forced_keyframe = 1;
997  } else if (ost->forced_keyframes_pexpr) {
998  double res;
999  ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
1002  av_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
1008  res);
1009  if (res) {
1010  forced_keyframe = 1;
1016  }
1017 
1019  }
1020 
1021  if (forced_keyframe) {
1022  in_picture->pict_type = AV_PICTURE_TYPE_I;
1023  av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
1024  }
1025 
1026  update_benchmark(NULL);
1027  if (debug_ts) {
1028  av_log(NULL, AV_LOG_INFO, "encoder <- type:video "
1029  "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
1030  av_ts2str(in_picture->pts), av_ts2timestr(in_picture->pts, &enc->time_base),
1031  enc->time_base.num, enc->time_base.den);
1032  }
1033 
1034  ost->frames_encoded++;
1035 
1036  ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
1037  update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
1038  if (ret < 0) {
1039  av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1040  exit_program(1);
1041  }
1042 
1043  if (got_packet) {
1044  if (debug_ts) {
1045  av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
1046  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
1047  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &enc->time_base),
1048  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &enc->time_base));
1049  }
1050 
1051  if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
1052  pkt.pts = ost->sync_opts;
1053 
1054  av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
1055 
1056  if (debug_ts) {
1057  av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
1058  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
1059  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
1060  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
1061  }
1062 
1063  frame_size = pkt.size;
1064  write_frame(s, &pkt, ost);
1065 
1066  /* if two pass, output log */
1067  if (ost->logfile && enc->stats_out) {
1068  fprintf(ost->logfile, "%s", enc->stats_out);
1069  }
1070  }
1071  }
1072  ost->sync_opts++;
1073  /*
1074  * For video, number of frames in == number of packets out.
1075  * But there may be reordering, so we can't throw away frames on encoder
1076  * flush, we need to limit them here, before they go into encoder.
1077  */
1078  ost->frame_number++;
1079 
1080  if (vstats_filename && frame_size)
1081  do_video_stats(ost, frame_size);
1082  }
1083 }
1084 
1085 static double psnr(double d)
1086 {
1087  return -10.0 * log(d) / log(10.0);
1088 }
1089 
1091 {
1092  AVCodecContext *enc;
1093  int frame_number;
1094  double ti1, bitrate, avg_bitrate;
1095 
1096  /* this is executed just the first time do_video_stats is called */
1097  if (!vstats_file) {
1098  vstats_file = fopen(vstats_filename, "w");
1099  if (!vstats_file) {
1100  perror("fopen");
1101  exit_program(1);
1102  }
1103  }
1104 
1105  enc = ost->enc_ctx;
1106  if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1107  frame_number = ost->st->nb_frames;
1108  fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1109  if (enc->flags&CODEC_FLAG_PSNR)
1110  fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1111 
1112  fprintf(vstats_file,"f_size= %6d ", frame_size);
1113  /* compute pts value */
1114  ti1 = av_stream_get_end_pts(ost->st) * av_q2d(ost->st->time_base);
1115  if (ti1 < 0.01)
1116  ti1 = 0.01;
1117 
1118  bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1119  avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
1120  fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1121  (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
1122  fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1123  }
1124 }
1125 
1127 {
1128  OutputFile *of = output_files[ost->file_index];
1129  int i;
1130 
1132 
1133  if (of->shortest) {
1134  for (i = 0; i < of->ctx->nb_streams; i++)
1135  output_streams[of->ost_index + i]->finished = ENCODER_FINISHED | MUXER_FINISHED;
1136  }
1137 }
1138 
1139 /**
1140  * Get and encode new output from any of the filtergraphs, without causing
1141  * activity.
1142  *
1143  * @return 0 for success, <0 for severe errors
1144  */
1145 static int reap_filters(void)
1146 {
1147  AVFrame *filtered_frame = NULL;
1148  int i;
1149  int64_t frame_pts;
1150 
1151  /* Reap all buffers present in the buffer sinks */
1152  for (i = 0; i < nb_output_streams; i++) {
1153  OutputStream *ost = output_streams[i];
1154  OutputFile *of = output_files[ost->file_index];
1156  AVCodecContext *enc = ost->enc_ctx;
1157  int ret = 0;
1158 
1159  if (!ost->filter)
1160  continue;
1161  filter = ost->filter->filter;
1162 
1163  if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
1164  return AVERROR(ENOMEM);
1165  }
1166  filtered_frame = ost->filtered_frame;
1167 
1168  while (1) {
1169  ret = av_buffersink_get_frame_flags(filter, filtered_frame,
1171  if (ret < 0) {
1172  if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1173  av_log(NULL, AV_LOG_WARNING,
1174  "Error in av_buffersink_get_frame_flags(): %s\n", av_err2str(ret));
1175  }
1176  break;
1177  }
1178  if (ost->finished) {
1179  av_frame_unref(filtered_frame);
1180  continue;
1181  }
1182  frame_pts = AV_NOPTS_VALUE;
1183  if (filtered_frame->pts != AV_NOPTS_VALUE) {
1184  int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1185  filtered_frame->pts = frame_pts =
1186  av_rescale_q(filtered_frame->pts, filter->inputs[0]->time_base, enc->time_base) -
1187  av_rescale_q(start_time, AV_TIME_BASE_Q, enc->time_base);
1188  }
1189  //if (ost->source_index >= 0)
1190  // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1191 
1192  switch (filter->inputs[0]->type) {
1193  case AVMEDIA_TYPE_VIDEO:
1194  filtered_frame->pts = frame_pts;
1195  if (!ost->frame_aspect_ratio.num)
1196  enc->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
1197 
1198  if (debug_ts) {
1199  av_log(NULL, AV_LOG_INFO, "filter -> pts:%s pts_time:%s time_base:%d/%d\n",
1200  av_ts2str(filtered_frame->pts), av_ts2timestr(filtered_frame->pts, &enc->time_base),
1201  enc->time_base.num, enc->time_base.den);
1202  }
1203 
1204  do_video_out(of->ctx, ost, filtered_frame);
1205  break;
1206  case AVMEDIA_TYPE_AUDIO:
1207  filtered_frame->pts = frame_pts;
1208  if (!(enc->codec->capabilities & CODEC_CAP_PARAM_CHANGE) &&
1209  enc->channels != av_frame_get_channels(filtered_frame)) {
1210  av_log(NULL, AV_LOG_ERROR,
1211  "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
1212  break;
1213  }
1214  do_audio_out(of->ctx, ost, filtered_frame);
1215  break;
1216  default:
1217  // TODO support subtitle filters
1218  av_assert0(0);
1219  }
1220 
1221  av_frame_unref(filtered_frame);
1222  }
1223  }
1224 
1225  return 0;
1226 }
1227 
1228 static void print_final_stats(int64_t total_size)
1229 {
1230  uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
1231  uint64_t subtitle_size = 0;
1232  uint64_t data_size = 0;
1233  float percent = -1.0;
1234  int i, j;
1235 
1236  for (i = 0; i < nb_output_streams; i++) {
1237  OutputStream *ost = output_streams[i];
1238  switch (ost->enc_ctx->codec_type) {
1239  case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
1240  case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
1241  case AVMEDIA_TYPE_SUBTITLE: subtitle_size += ost->data_size; break;
1242  default: other_size += ost->data_size; break;
1243  }
1244  extra_size += ost->enc_ctx->extradata_size;
1245  data_size += ost->data_size;
1246  }
1247 
1248  if (data_size && total_size>0 && total_size >= data_size)
1249  percent = 100.0 * (total_size - data_size) / data_size;
1250 
1251  av_log(NULL, AV_LOG_INFO, "\n");
1252  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: ",
1253  video_size / 1024.0,
1254  audio_size / 1024.0,
1255  subtitle_size / 1024.0,
1256  other_size / 1024.0,
1257  extra_size / 1024.0);
1258  if (percent >= 0.0)
1259  av_log(NULL, AV_LOG_INFO, "%f%%", percent);
1260  else
1261  av_log(NULL, AV_LOG_INFO, "unknown");
1262  av_log(NULL, AV_LOG_INFO, "\n");
1263 
1264  /* print verbose per-stream stats */
1265  for (i = 0; i < nb_input_files; i++) {
1266  InputFile *f = input_files[i];
1267  uint64_t total_packets = 0, total_size = 0;
1268 
1269  av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
1270  i, f->ctx->filename);
1271 
1272  for (j = 0; j < f->nb_streams; j++) {
1273  InputStream *ist = input_streams[f->ist_index + j];
1274  enum AVMediaType type = ist->dec_ctx->codec_type;
1275 
1276  total_size += ist->data_size;
1277  total_packets += ist->nb_packets;
1278 
1279  av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
1280  i, j, media_type_string(type));
1281  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
1282  ist->nb_packets, ist->data_size);
1283 
1284  if (ist->decoding_needed) {
1285  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
1286  ist->frames_decoded);
1287  if (type == AVMEDIA_TYPE_AUDIO)
1288  av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
1289  av_log(NULL, AV_LOG_VERBOSE, "; ");
1290  }
1291 
1292  av_log(NULL, AV_LOG_VERBOSE, "\n");
1293  }
1294 
1295  av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
1296  total_packets, total_size);
1297  }
1298 
1299  for (i = 0; i < nb_output_files; i++) {
1300  OutputFile *of = output_files[i];
1301  uint64_t total_packets = 0, total_size = 0;
1302 
1303  av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
1304  i, of->ctx->filename);
1305 
1306  for (j = 0; j < of->ctx->nb_streams; j++) {
1307  OutputStream *ost = output_streams[of->ost_index + j];
1308  enum AVMediaType type = ost->enc_ctx->codec_type;
1309 
1310  total_size += ost->data_size;
1311  total_packets += ost->packets_written;
1312 
1313  av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
1314  i, j, media_type_string(type));
1315  if (ost->encoding_needed) {
1316  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
1317  ost->frames_encoded);
1318  if (type == AVMEDIA_TYPE_AUDIO)
1319  av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
1320  av_log(NULL, AV_LOG_VERBOSE, "; ");
1321  }
1322 
1323  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
1324  ost->packets_written, ost->data_size);
1325 
1326  av_log(NULL, AV_LOG_VERBOSE, "\n");
1327  }
1328 
1329  av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
1330  total_packets, total_size);
1331  }
1332  if(video_size + data_size + audio_size + subtitle_size + extra_size == 0){
1333  av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
1334  }
1335 }
1336 
1337 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1338 {
1339  char buf[1024];
1340  AVBPrint buf_script;
1341  OutputStream *ost;
1342  AVFormatContext *oc;
1343  int64_t total_size;
1344  AVCodecContext *enc;
1345  int frame_number, vid, i;
1346  double bitrate;
1347  int64_t pts = INT64_MIN;
1348  static int64_t last_time = -1;
1349  static int qp_histogram[52];
1350  int hours, mins, secs, us;
1351 
1352  if (!print_stats && !is_last_report && !progress_avio)
1353  return;
1354 
1355  if (!is_last_report) {
1356  if (last_time == -1) {
1357  last_time = cur_time;
1358  return;
1359  }
1360  if ((cur_time - last_time) < 500000)
1361  return;
1362  last_time = cur_time;
1363  }
1364 
1365 
1366  oc = output_files[0]->ctx;
1367 
1368  total_size = avio_size(oc->pb);
1369  if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
1370  total_size = avio_tell(oc->pb);
1371 
1372  buf[0] = '\0';
1373  vid = 0;
1374  av_bprint_init(&buf_script, 0, 1);
1375  for (i = 0; i < nb_output_streams; i++) {
1376  float q = -1;
1377  ost = output_streams[i];
1378  enc = ost->enc_ctx;
1379  if (!ost->stream_copy && enc->coded_frame)
1380  q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1381  if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1382  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1383  av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1384  ost->file_index, ost->index, q);
1385  }
1386  if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1387  float fps, t = (cur_time-timer_start) / 1000000.0;
1388 
1389  frame_number = ost->frame_number;
1390  fps = t > 1 ? frame_number / t : 0;
1391  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
1392  frame_number, fps < 9.95, fps, q);
1393  av_bprintf(&buf_script, "frame=%d\n", frame_number);
1394  av_bprintf(&buf_script, "fps=%.1f\n", fps);
1395  av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1396  ost->file_index, ost->index, q);
1397  if (is_last_report)
1398  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1399  if (qp_hist) {
1400  int j;
1401  int qp = lrintf(q);
1402  if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1403  qp_histogram[qp]++;
1404  for (j = 0; j < 32; j++)
1405  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
1406  }
1407  if ((enc->flags&CODEC_FLAG_PSNR) && (enc->coded_frame || is_last_report)) {
1408  int j;
1409  double error, error_sum = 0;
1410  double scale, scale_sum = 0;
1411  double p;
1412  char type[3] = { 'Y','U','V' };
1413  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1414  for (j = 0; j < 3; j++) {
1415  if (is_last_report) {
1416  error = enc->error[j];
1417  scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1418  } else {
1419  error = enc->coded_frame->error[j];
1420  scale = enc->width * enc->height * 255.0 * 255.0;
1421  }
1422  if (j)
1423  scale /= 4;
1424  error_sum += error;
1425  scale_sum += scale;
1426  p = psnr(error / scale);
1427  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
1428  av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1429  ost->file_index, ost->index, type[j] | 32, p);
1430  }
1431  p = psnr(error_sum / scale_sum);
1432  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1433  av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1434  ost->file_index, ost->index, p);
1435  }
1436  vid = 1;
1437  }
1438  /* compute min output value */
1440  pts = FFMAX(pts, av_rescale_q(av_stream_get_end_pts(ost->st),
1441  ost->st->time_base, AV_TIME_BASE_Q));
1442  }
1443 
1444  secs = pts / AV_TIME_BASE;
1445  us = pts % AV_TIME_BASE;
1446  mins = secs / 60;
1447  secs %= 60;
1448  hours = mins / 60;
1449  mins %= 60;
1450 
1451  bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
1452 
1453  if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1454  "size=N/A time=");
1455  else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1456  "size=%8.0fkB time=", total_size / 1024.0);
1457  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1458  "%02d:%02d:%02d.%02d ", hours, mins, secs,
1459  (100 * us) / AV_TIME_BASE);
1460  if (bitrate < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1461  "bitrate=N/A");
1462  else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1463  "bitrate=%6.1fkbits/s", bitrate);
1464  if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
1465  else av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1466  av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1467  av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
1468  hours, mins, secs, us);
1469 
1471  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1473  av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1474  av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1475 
1476  if (print_stats || is_last_report) {
1477  if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
1478  fprintf(stderr, "%s \r", buf);
1479  } else
1480  av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1481 
1482  fflush(stderr);
1483  }
1484 
1485  if (progress_avio) {
1486  av_bprintf(&buf_script, "progress=%s\n",
1487  is_last_report ? "end" : "continue");
1488  avio_write(progress_avio, buf_script.str,
1489  FFMIN(buf_script.len, buf_script.size - 1));
1490  avio_flush(progress_avio);
1491  av_bprint_finalize(&buf_script, NULL);
1492  if (is_last_report) {
1493  avio_close(progress_avio);
1494  progress_avio = NULL;
1495  }
1496  }
1497 
1498  if (is_last_report)
1499  print_final_stats(total_size);
1500 }
1501 
1502 static void flush_encoders(void)
1503 {
1504  int i, ret;
1505 
1506  for (i = 0; i < nb_output_streams; i++) {
1507  OutputStream *ost = output_streams[i];
1508  AVCodecContext *enc = ost->enc_ctx;
1509  AVFormatContext *os = output_files[ost->file_index]->ctx;
1510  int stop_encoding = 0;
1511 
1512  if (!ost->encoding_needed)
1513  continue;
1514 
1515  if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1516  continue;
1518  continue;
1519 
1520  for (;;) {
1521  int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1522  const char *desc;
1523 
1524  switch (enc->codec_type) {
1525  case AVMEDIA_TYPE_AUDIO:
1526  encode = avcodec_encode_audio2;
1527  desc = "Audio";
1528  break;
1529  case AVMEDIA_TYPE_VIDEO:
1530  encode = avcodec_encode_video2;
1531  desc = "Video";
1532  break;
1533  default:
1534  stop_encoding = 1;
1535  }
1536 
1537  if (encode) {
1538  AVPacket pkt;
1539  int pkt_size;
1540  int got_packet;
1541  av_init_packet(&pkt);
1542  pkt.data = NULL;
1543  pkt.size = 0;
1544 
1545  update_benchmark(NULL);
1546  ret = encode(enc, &pkt, NULL, &got_packet);
1547  update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
1548  if (ret < 0) {
1549  av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1550  exit_program(1);
1551  }
1552  if (ost->logfile && enc->stats_out) {
1553  fprintf(ost->logfile, "%s", enc->stats_out);
1554  }
1555  if (!got_packet) {
1556  stop_encoding = 1;
1557  break;
1558  }
1559  if (ost->finished & MUXER_FINISHED) {
1560  av_free_packet(&pkt);
1561  continue;
1562  }
1563  av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
1564  pkt_size = pkt.size;
1565  write_frame(os, &pkt, ost);
1567  do_video_stats(ost, pkt_size);
1568  }
1569  }
1570 
1571  if (stop_encoding)
1572  break;
1573  }
1574  }
1575 }
1576 
1577 /*
1578  * Check whether a packet from ist should be written into ost at this time
1579  */
1581 {
1582  OutputFile *of = output_files[ost->file_index];
1583  int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1584 
1585  if (ost->source_index != ist_index)
1586  return 0;
1587 
1588  if (ost->finished)
1589  return 0;
1590 
1591  if (of->start_time != AV_NOPTS_VALUE && ist->pts < of->start_time)
1592  return 0;
1593 
1594  return 1;
1595 }
1596 
1597 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1598 {
1599  OutputFile *of = output_files[ost->file_index];
1600  InputFile *f = input_files [ist->file_index];
1601  int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1602  int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1603  int64_t ist_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ist->st->time_base);
1604  AVPicture pict;
1605  AVPacket opkt;
1606 
1607  av_init_packet(&opkt);
1608 
1609  if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1611  return;
1612 
1613  if (pkt->pts == AV_NOPTS_VALUE) {
1614  if (!ost->frame_number && ist->pts < start_time &&
1615  !ost->copy_prior_start)
1616  return;
1617  } else {
1618  if (!ost->frame_number && pkt->pts < ist_tb_start_time &&
1619  !ost->copy_prior_start)
1620  return;
1621  }
1622 
1623  if (of->recording_time != INT64_MAX &&
1624  ist->pts >= of->recording_time + start_time) {
1625  close_output_stream(ost);
1626  return;
1627  }
1628 
1629  if (f->recording_time != INT64_MAX) {
1630  start_time = f->ctx->start_time;
1631  if (f->start_time != AV_NOPTS_VALUE)
1632  start_time += f->start_time;
1633  if (ist->pts >= f->recording_time + start_time) {
1634  close_output_stream(ost);
1635  return;
1636  }
1637  }
1638 
1639  /* force the input stream PTS */
1640  if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
1641  ost->sync_opts++;
1642 
1643  if (pkt->pts != AV_NOPTS_VALUE)
1644  opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1645  else
1646  opkt.pts = AV_NOPTS_VALUE;
1647 
1648  if (pkt->dts == AV_NOPTS_VALUE)
1649  opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
1650  else
1651  opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1652  opkt.dts -= ost_tb_start_time;
1653 
1654  if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
1656  if(!duration)
1657  duration = ist->dec_ctx->frame_size;
1658  opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
1660  ost->st->time_base) - ost_tb_start_time;
1661  }
1662 
1663  opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1664  opkt.flags = pkt->flags;
1665 
1666  // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1667  if ( ost->enc_ctx->codec_id != AV_CODEC_ID_H264
1668  && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG1VIDEO
1669  && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG2VIDEO
1670  && ost->enc_ctx->codec_id != AV_CODEC_ID_VC1
1671  ) {
1672  if (av_parser_change(ost->parser, ost->st->codec,
1673  &opkt.data, &opkt.size,
1674  pkt->data, pkt->size,
1675  pkt->flags & AV_PKT_FLAG_KEY)) {
1676  opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1677  if (!opkt.buf)
1678  exit_program(1);
1679  }
1680  } else {
1681  opkt.data = pkt->data;
1682  opkt.size = pkt->size;
1683  }
1684  av_copy_packet_side_data(&opkt, pkt);
1685 
1686  if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
1687  /* store AVPicture in AVPacket, as expected by the output format */
1688  avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1689  opkt.data = (uint8_t *)&pict;
1690  opkt.size = sizeof(AVPicture);
1691  opkt.flags |= AV_PKT_FLAG_KEY;
1692  }
1693 
1694  write_frame(of->ctx, &opkt, ost);
1695 }
1696 
1698 {
1699  AVCodecContext *dec = ist->dec_ctx;
1700 
1701  if (!dec->channel_layout) {
1702  char layout_name[256];
1703 
1704  if (dec->channels > ist->guess_layout_max)
1705  return 0;
1707  if (!dec->channel_layout)
1708  return 0;
1709  av_get_channel_layout_string(layout_name, sizeof(layout_name),
1710  dec->channels, dec->channel_layout);
1711  av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1712  "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1713  }
1714  return 1;
1715 }
1716 
1717 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1718 {
1719  AVFrame *decoded_frame, *f;
1720  AVCodecContext *avctx = ist->dec_ctx;
1721  int i, ret, err = 0, resample_changed;
1722  AVRational decoded_frame_tb;
1723 
1724  if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1725  return AVERROR(ENOMEM);
1726  if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1727  return AVERROR(ENOMEM);
1728  decoded_frame = ist->decoded_frame;
1729 
1730  update_benchmark(NULL);
1731  ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1732  update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
1733 
1734  if (ret >= 0 && avctx->sample_rate <= 0) {
1735  av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
1736  ret = AVERROR_INVALIDDATA;
1737  }
1738 
1739  if (*got_output || ret<0 || pkt->size)
1740  decode_error_stat[ret<0] ++;
1741 
1742  if (!*got_output || ret < 0) {
1743  if (!pkt->size) {
1744  for (i = 0; i < ist->nb_filters; i++)
1745 #if 1
1746  av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1747 #else
1748  av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1749 #endif
1750  }
1751  return ret;
1752  }
1753 
1754  ist->samples_decoded += decoded_frame->nb_samples;
1755  ist->frames_decoded++;
1756 
1757 #if 1
1758  /* increment next_dts to use for the case where the input stream does not
1759  have timestamps or there are multiple frames in the packet */
1760  ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1761  avctx->sample_rate;
1762  ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1763  avctx->sample_rate;
1764 #endif
1765 
1766  resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1767  ist->resample_channels != avctx->channels ||
1768  ist->resample_channel_layout != decoded_frame->channel_layout ||
1769  ist->resample_sample_rate != decoded_frame->sample_rate;
1770  if (resample_changed) {
1771  char layout1[64], layout2[64];
1772 
1773  if (!guess_input_channel_layout(ist)) {
1774  av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1775  "layout for Input Stream #%d.%d\n", ist->file_index,
1776  ist->st->index);
1777  exit_program(1);
1778  }
1779  decoded_frame->channel_layout = avctx->channel_layout;
1780 
1781  av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1783  av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1784  decoded_frame->channel_layout);
1785 
1786  av_log(NULL, AV_LOG_INFO,
1787  "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",
1788  ist->file_index, ist->st->index,
1790  ist->resample_channels, layout1,
1791  decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1792  avctx->channels, layout2);
1793 
1794  ist->resample_sample_fmt = decoded_frame->format;
1795  ist->resample_sample_rate = decoded_frame->sample_rate;
1796  ist->resample_channel_layout = decoded_frame->channel_layout;
1797  ist->resample_channels = avctx->channels;
1798 
1799  for (i = 0; i < nb_filtergraphs; i++)
1800  if (ist_in_filtergraph(filtergraphs[i], ist)) {
1801  FilterGraph *fg = filtergraphs[i];
1802  int j;
1803  if (configure_filtergraph(fg) < 0) {
1804  av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1805  exit_program(1);
1806  }
1807  for (j = 0; j < fg->nb_outputs; j++) {
1808  OutputStream *ost = fg->outputs[j]->ost;
1809  if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1812  ost->enc_ctx->frame_size);
1813  }
1814  }
1815  }
1816 
1817  /* if the decoder provides a pts, use it instead of the last packet pts.
1818  the decoder could be delaying output by a packet or more. */
1819  if (decoded_frame->pts != AV_NOPTS_VALUE) {
1820  ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
1821  decoded_frame_tb = avctx->time_base;
1822  } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
1823  decoded_frame->pts = decoded_frame->pkt_pts;
1824  decoded_frame_tb = ist->st->time_base;
1825  } else if (pkt->pts != AV_NOPTS_VALUE) {
1826  decoded_frame->pts = pkt->pts;
1827  decoded_frame_tb = ist->st->time_base;
1828  }else {
1829  decoded_frame->pts = ist->dts;
1830  decoded_frame_tb = AV_TIME_BASE_Q;
1831  }
1832  pkt->pts = AV_NOPTS_VALUE;
1833  if (decoded_frame->pts != AV_NOPTS_VALUE)
1834  decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
1835  (AVRational){1, avctx->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
1836  (AVRational){1, avctx->sample_rate});
1837  for (i = 0; i < ist->nb_filters; i++) {
1838  if (i < ist->nb_filters - 1) {
1839  f = ist->filter_frame;
1840  err = av_frame_ref(f, decoded_frame);
1841  if (err < 0)
1842  break;
1843  } else
1844  f = decoded_frame;
1845  err = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f,
1847  if (err == AVERROR_EOF)
1848  err = 0; /* ignore */
1849  if (err < 0)
1850  break;
1851  }
1852  decoded_frame->pts = AV_NOPTS_VALUE;
1853 
1854  av_frame_unref(ist->filter_frame);
1855  av_frame_unref(decoded_frame);
1856  return err < 0 ? err : ret;
1857 }
1858 
1859 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1860 {
1861  AVFrame *decoded_frame, *f;
1862  int i, ret = 0, err = 0, resample_changed;
1863  int64_t best_effort_timestamp;
1864  AVRational *frame_sample_aspect;
1865 
1866  if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1867  return AVERROR(ENOMEM);
1868  if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1869  return AVERROR(ENOMEM);
1870  decoded_frame = ist->decoded_frame;
1871  pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
1872 
1873  update_benchmark(NULL);
1874  ret = avcodec_decode_video2(ist->dec_ctx,
1875  decoded_frame, got_output, pkt);
1876  update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
1877 
1878  // The following line may be required in some cases where there is no parser
1879  // or the parser does not has_b_frames correctly
1880  if (ist->st->codec->has_b_frames < ist->dec_ctx->has_b_frames) {
1881  if (ist->dec_ctx->codec_id == AV_CODEC_ID_H264) {
1882  ist->st->codec->has_b_frames = ist->dec_ctx->has_b_frames;
1883  } else
1885  ist->dec_ctx,
1886  "has_b_frames is larger in decoder than demuxer %d > %d ",
1887  ist->dec_ctx->has_b_frames,
1888  ist->st->codec->has_b_frames
1889  );
1890  }
1891 
1892  if (*got_output || ret<0 || pkt->size)
1893  decode_error_stat[ret<0] ++;
1894 
1895  if (!*got_output || ret < 0) {
1896  if (!pkt->size) {
1897  for (i = 0; i < ist->nb_filters; i++)
1898 #if 1
1899  av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1900 #else
1901  av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1902 #endif
1903  }
1904  return ret;
1905  }
1906 
1907  if(ist->top_field_first>=0)
1908  decoded_frame->top_field_first = ist->top_field_first;
1909 
1910  ist->frames_decoded++;
1911 
1912  if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
1913  err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
1914  if (err < 0)
1915  goto fail;
1916  }
1917  ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
1918 
1919  best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
1920  if(best_effort_timestamp != AV_NOPTS_VALUE)
1921  ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
1922 
1923  if (debug_ts) {
1924  av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
1925  "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",
1926  ist->st->index, av_ts2str(decoded_frame->pts),
1927  av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
1928  best_effort_timestamp,
1929  av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
1930  decoded_frame->key_frame, decoded_frame->pict_type,
1931  ist->st->time_base.num, ist->st->time_base.den);
1932  }
1933 
1934  pkt->size = 0;
1935 
1936  if (ist->st->sample_aspect_ratio.num)
1937  decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1938 
1939  resample_changed = ist->resample_width != decoded_frame->width ||
1940  ist->resample_height != decoded_frame->height ||
1941  ist->resample_pix_fmt != decoded_frame->format;
1942  if (resample_changed) {
1943  av_log(NULL, AV_LOG_INFO,
1944  "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1945  ist->file_index, ist->st->index,
1947  decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1948 
1949  ist->resample_width = decoded_frame->width;
1950  ist->resample_height = decoded_frame->height;
1951  ist->resample_pix_fmt = decoded_frame->format;
1952 
1953  for (i = 0; i < nb_filtergraphs; i++) {
1954  if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters &&
1955  configure_filtergraph(filtergraphs[i]) < 0) {
1956  av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1957  exit_program(1);
1958  }
1959  }
1960  }
1961 
1962  frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
1963  for (i = 0; i < ist->nb_filters; i++) {
1964  if (!frame_sample_aspect->num)
1965  *frame_sample_aspect = ist->st->sample_aspect_ratio;
1966 
1967  if (i < ist->nb_filters - 1) {
1968  f = ist->filter_frame;
1969  err = av_frame_ref(f, decoded_frame);
1970  if (err < 0)
1971  break;
1972  } else
1973  f = decoded_frame;
1975  if (ret == AVERROR_EOF) {
1976  ret = 0; /* ignore */
1977  } else if (ret < 0) {
1978  av_log(NULL, AV_LOG_FATAL,
1979  "Failed to inject frame into filter network: %s\n", av_err2str(ret));
1980  exit_program(1);
1981  }
1982  }
1983 
1984 fail:
1986  av_frame_unref(decoded_frame);
1987  return err < 0 ? err : ret;
1988 }
1989 
1990 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1991 {
1992  AVSubtitle subtitle;
1993  int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
1994  &subtitle, got_output, pkt);
1995 
1996  if (*got_output || ret<0 || pkt->size)
1997  decode_error_stat[ret<0] ++;
1998 
1999  if (ret < 0 || !*got_output) {
2000  if (!pkt->size)
2001  sub2video_flush(ist);
2002  return ret;
2003  }
2004 
2005  if (ist->fix_sub_duration) {
2006  int end = 1;
2007  if (ist->prev_sub.got_output) {
2008  end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
2009  1000, AV_TIME_BASE);
2010  if (end < ist->prev_sub.subtitle.end_display_time) {
2011  av_log(ist->dec_ctx, AV_LOG_DEBUG,
2012  "Subtitle duration reduced from %d to %d%s\n",
2014  end <= 0 ? ", dropping it" : "");
2016  }
2017  }
2018  FFSWAP(int, *got_output, ist->prev_sub.got_output);
2019  FFSWAP(int, ret, ist->prev_sub.ret);
2020  FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
2021  if (end <= 0)
2022  goto out;
2023  }
2024 
2025  if (!*got_output)
2026  return ret;
2027 
2028  sub2video_update(ist, &subtitle);
2029 
2030  if (!subtitle.num_rects)
2031  goto out;
2032 
2033  ist->frames_decoded++;
2034 
2035  for (i = 0; i < nb_output_streams; i++) {
2036  OutputStream *ost = output_streams[i];
2037 
2038  if (!check_output_constraints(ist, ost) || !ost->encoding_needed
2039  || ost->enc->type != AVMEDIA_TYPE_SUBTITLE)
2040  continue;
2041 
2042  do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
2043  }
2044 
2045 out:
2046  avsubtitle_free(&subtitle);
2047  return ret;
2048 }
2049 
2050 /* pkt = NULL means EOF (needed to flush decoder buffers) */
2051 static int output_packet(InputStream *ist, const AVPacket *pkt)
2052 {
2053  int ret = 0, i;
2054  int got_output = 0;
2055 
2056  AVPacket avpkt;
2057  if (!ist->saw_first_ts) {
2058  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;
2059  ist->pts = 0;
2060  if (pkt != NULL && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
2061  ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
2062  ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
2063  }
2064  ist->saw_first_ts = 1;
2065  }
2066 
2067  if (ist->next_dts == AV_NOPTS_VALUE)
2068  ist->next_dts = ist->dts;
2069  if (ist->next_pts == AV_NOPTS_VALUE)
2070  ist->next_pts = ist->pts;
2071 
2072  if (pkt == NULL) {
2073  /* EOF handling */
2074  av_init_packet(&avpkt);
2075  avpkt.data = NULL;
2076  avpkt.size = 0;
2077  goto handle_eof;
2078  } else {
2079  avpkt = *pkt;
2080  }
2081 
2082  if (pkt->dts != AV_NOPTS_VALUE) {
2083  ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
2084  if (ist->dec_ctx->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
2085  ist->next_pts = ist->pts = ist->dts;
2086  }
2087 
2088  // while we have more to decode or while the decoder did output something on EOF
2089  while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
2090  int duration;
2091  handle_eof:
2092 
2093  ist->pts = ist->next_pts;
2094  ist->dts = ist->next_dts;
2095 
2096  if (avpkt.size && avpkt.size != pkt->size &&
2097  !(ist->dec->capabilities & CODEC_CAP_SUBFRAMES)) {
2099  "Multiple frames in a packet from stream %d\n", pkt->stream_index);
2100  ist->showed_multi_packet_warning = 1;
2101  }
2102 
2103  switch (ist->dec_ctx->codec_type) {
2104  case AVMEDIA_TYPE_AUDIO:
2105  ret = decode_audio (ist, &avpkt, &got_output);
2106  break;
2107  case AVMEDIA_TYPE_VIDEO:
2108  ret = decode_video (ist, &avpkt, &got_output);
2109  if (avpkt.duration) {
2110  duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
2111  } else if(ist->dec_ctx->time_base.num != 0 && ist->dec_ctx->time_base.den != 0) {
2112  int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->dec_ctx->ticks_per_frame;
2113  duration = ((int64_t)AV_TIME_BASE *
2114  ist->dec_ctx->time_base.num * ticks) /
2115  ist->dec_ctx->time_base.den;
2116  } else
2117  duration = 0;
2118 
2119  if(ist->dts != AV_NOPTS_VALUE && duration) {
2120  ist->next_dts += duration;
2121  }else
2122  ist->next_dts = AV_NOPTS_VALUE;
2123 
2124  if (got_output)
2125  ist->next_pts += duration; //FIXME the duration is not correct in some cases
2126  break;
2127  case AVMEDIA_TYPE_SUBTITLE:
2128  ret = transcode_subtitles(ist, &avpkt, &got_output);
2129  break;
2130  default:
2131  return -1;
2132  }
2133 
2134  if (ret < 0)
2135  return ret;
2136 
2137  avpkt.dts=
2138  avpkt.pts= AV_NOPTS_VALUE;
2139 
2140  // touch data and size only if not EOF
2141  if (pkt) {
2143  ret = avpkt.size;
2144  avpkt.data += ret;
2145  avpkt.size -= ret;
2146  }
2147  if (!got_output) {
2148  continue;
2149  }
2150  if (got_output && !pkt)
2151  break;
2152  }
2153 
2154  /* handle stream copy */
2155  if (!ist->decoding_needed) {
2156  ist->dts = ist->next_dts;
2157  switch (ist->dec_ctx->codec_type) {
2158  case AVMEDIA_TYPE_AUDIO:
2159  ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
2160  ist->dec_ctx->sample_rate;
2161  break;
2162  case AVMEDIA_TYPE_VIDEO:
2163  if (ist->framerate.num) {
2164  // TODO: Remove work-around for c99-to-c89 issue 7
2165  AVRational time_base_q = AV_TIME_BASE_Q;
2166  int64_t next_dts = av_rescale_q(ist->next_dts, time_base_q, av_inv_q(ist->framerate));
2167  ist->next_dts = av_rescale_q(next_dts + 1, av_inv_q(ist->framerate), time_base_q);
2168  } else if (pkt->duration) {
2169  ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
2170  } else if(ist->dec_ctx->time_base.num != 0) {
2171  int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
2172  ist->next_dts += ((int64_t)AV_TIME_BASE *
2173  ist->dec_ctx->time_base.num * ticks) /
2174  ist->dec_ctx->time_base.den;
2175  }
2176  break;
2177  }
2178  ist->pts = ist->dts;
2179  ist->next_pts = ist->next_dts;
2180  }
2181  for (i = 0; pkt && i < nb_output_streams; i++) {
2182  OutputStream *ost = output_streams[i];
2183 
2184  if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2185  continue;
2186 
2187  do_streamcopy(ist, ost, pkt);
2188  }
2189 
2190  return got_output;
2191 }
2192 
2193 static void print_sdp(void)
2194 {
2195  char sdp[16384];
2196  int i;
2197  AVFormatContext **avc = av_malloc_array(nb_output_files, sizeof(*avc));
2198 
2199  if (!avc)
2200  exit_program(1);
2201  for (i = 0; i < nb_output_files; i++)
2202  avc[i] = output_files[i]->ctx;
2203 
2204  av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
2205  printf("SDP:\n%s\n", sdp);
2206  fflush(stdout);
2207  av_freep(&avc);
2208 }
2209 
2211 {
2212  int i;
2213  for (i = 0; hwaccels[i].name; i++)
2214  if (hwaccels[i].pix_fmt == pix_fmt)
2215  return &hwaccels[i];
2216  return NULL;
2217 }
2218 
2219 static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
2220 {
2221  InputStream *ist = s->opaque;
2222  const enum AVPixelFormat *p;
2223  int ret;
2224 
2225  for (p = pix_fmts; *p != -1; p++) {
2226  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
2227  const HWAccel *hwaccel;
2228 
2229  if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
2230  break;
2231 
2232  hwaccel = get_hwaccel(*p);
2233  if (!hwaccel ||
2234  (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
2235  (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
2236  continue;
2237 
2238  ret = hwaccel->init(s);
2239  if (ret < 0) {
2240  if (ist->hwaccel_id == hwaccel->id) {
2241  av_log(NULL, AV_LOG_FATAL,
2242  "%s hwaccel requested for input stream #%d:%d, "
2243  "but cannot be initialized.\n", hwaccel->name,
2244  ist->file_index, ist->st->index);
2245  exit_program(1);
2246  }
2247  continue;
2248  }
2249  ist->active_hwaccel_id = hwaccel->id;
2250  ist->hwaccel_pix_fmt = *p;
2251  break;
2252  }
2253 
2254  return *p;
2255 }
2256 
2258 {
2259  InputStream *ist = s->opaque;
2260 
2261  if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
2262  return ist->hwaccel_get_buffer(s, frame, flags);
2263 
2264  return avcodec_default_get_buffer2(s, frame, flags);
2265 }
2266 
2267 static int init_input_stream(int ist_index, char *error, int error_len)
2268 {
2269  int ret;
2270  InputStream *ist = input_streams[ist_index];
2271 
2272  if (ist->decoding_needed) {
2273  AVCodec *codec = ist->dec;
2274  if (!codec) {
2275  snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
2276  avcodec_get_name(ist->dec_ctx->codec_id), ist->file_index, ist->st->index);
2277  return AVERROR(EINVAL);
2278  }
2279 
2280  ist->dec_ctx->opaque = ist;
2281  ist->dec_ctx->get_format = get_format;
2282  ist->dec_ctx->get_buffer2 = get_buffer;
2283  ist->dec_ctx->thread_safe_callbacks = 1;
2284 
2285  av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
2287  av_dict_set(&ist->decoder_opts, "compute_edt", "1", 0);
2288 
2289  if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
2290  av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
2291  if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
2292  if (ret == AVERROR_EXPERIMENTAL)
2293  abort_codec_experimental(codec, 0);
2294 
2295  snprintf(error, error_len,
2296  "Error while opening decoder for input stream "
2297  "#%d:%d : %s",
2298  ist->file_index, ist->st->index, av_err2str(ret));
2299  return ret;
2300  }
2302  }
2303 
2304  ist->next_pts = AV_NOPTS_VALUE;
2305  ist->next_dts = AV_NOPTS_VALUE;
2306 
2307  return 0;
2308 }
2309 
2311 {
2312  if (ost->source_index >= 0)
2313  return input_streams[ost->source_index];
2314  return NULL;
2315 }
2316 
2317 static int compare_int64(const void *a, const void *b)
2318 {
2319  int64_t va = *(int64_t *)a, vb = *(int64_t *)b;
2320  return va < vb ? -1 : va > vb ? +1 : 0;
2321 }
2322 
2323 static void parse_forced_key_frames(char *kf, OutputStream *ost,
2324  AVCodecContext *avctx)
2325 {
2326  char *p;
2327  int n = 1, i, size, index = 0;
2328  int64_t t, *pts;
2329 
2330  for (p = kf; *p; p++)
2331  if (*p == ',')
2332  n++;
2333  size = n;
2334  pts = av_malloc_array(size, sizeof(*pts));
2335  if (!pts) {
2336  av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2337  exit_program(1);
2338  }
2339 
2340  p = kf;
2341  for (i = 0; i < n; i++) {
2342  char *next = strchr(p, ',');
2343 
2344  if (next)
2345  *next++ = 0;
2346 
2347  if (!memcmp(p, "chapters", 8)) {
2348 
2349  AVFormatContext *avf = output_files[ost->file_index]->ctx;
2350  int j;
2351 
2352  if (avf->nb_chapters > INT_MAX - size ||
2353  !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
2354  sizeof(*pts)))) {
2355  av_log(NULL, AV_LOG_FATAL,
2356  "Could not allocate forced key frames array.\n");
2357  exit_program(1);
2358  }
2359  t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
2360  t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2361 
2362  for (j = 0; j < avf->nb_chapters; j++) {
2363  AVChapter *c = avf->chapters[j];
2364  av_assert1(index < size);
2365  pts[index++] = av_rescale_q(c->start, c->time_base,
2366  avctx->time_base) + t;
2367  }
2368 
2369  } else {
2370 
2371  t = parse_time_or_die("force_key_frames", p, 1);
2372  av_assert1(index < size);
2373  pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2374 
2375  }
2376 
2377  p = next;
2378  }
2379 
2380  av_assert0(index == size);
2381  qsort(pts, size, sizeof(*pts), compare_int64);
2382  ost->forced_kf_count = size;
2383  ost->forced_kf_pts = pts;
2384 }
2385 
2386 static void report_new_stream(int input_index, AVPacket *pkt)
2387 {
2388  InputFile *file = input_files[input_index];
2389  AVStream *st = file->ctx->streams[pkt->stream_index];
2390 
2391  if (pkt->stream_index < file->nb_streams_warn)
2392  return;
2393  av_log(file->ctx, AV_LOG_WARNING,
2394  "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
2396  input_index, pkt->stream_index,
2397  pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
2398  file->nb_streams_warn = pkt->stream_index + 1;
2399 }
2400 
2402 {
2403  AVDictionaryEntry *e;
2404 
2405  uint8_t *encoder_string;
2406  int encoder_string_len;
2407  int format_flags = 0;
2408  int codec_flags = 0;
2409 
2410  if (av_dict_get(ost->st->metadata, "encoder", NULL, 0))
2411  return;
2412 
2413  e = av_dict_get(of->opts, "fflags", NULL, 0);
2414  if (e) {
2415  const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
2416  if (!o)
2417  return;
2418  av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
2419  }
2420  e = av_dict_get(ost->encoder_opts, "flags", NULL, 0);
2421  if (e) {
2422  const AVOption *o = av_opt_find(ost->enc_ctx, "flags", NULL, 0, 0);
2423  if (!o)
2424  return;
2425  av_opt_eval_flags(ost->enc_ctx, o, e->value, &codec_flags);
2426  }
2427 
2428  encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
2429  encoder_string = av_mallocz(encoder_string_len);
2430  if (!encoder_string)
2431  exit_program(1);
2432 
2433  if (!(format_flags & AVFMT_FLAG_BITEXACT) && !(codec_flags & CODEC_FLAG_BITEXACT))
2434  av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
2435  else
2436  av_strlcpy(encoder_string, "Lavc ", encoder_string_len);
2437  av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
2438  av_dict_set(&ost->st->metadata, "encoder", encoder_string,
2440 }
2441 
2442 static int transcode_init(void)
2443 {
2444  int ret = 0, i, j, k;
2445  AVFormatContext *oc;
2446  OutputStream *ost;
2447  InputStream *ist;
2448  char error[1024];
2449  int want_sdp = 1;
2450 
2451  for (i = 0; i < nb_filtergraphs; i++) {
2452  FilterGraph *fg = filtergraphs[i];
2453  for (j = 0; j < fg->nb_outputs; j++) {
2454  OutputFilter *ofilter = fg->outputs[j];
2455  if (!ofilter->ost || ofilter->ost->source_index >= 0)
2456  continue;
2457  if (fg->nb_inputs != 1)
2458  continue;
2459  for (k = nb_input_streams-1; k >= 0 ; k--)
2460  if (fg->inputs[0]->ist == input_streams[k])
2461  break;
2462  ofilter->ost->source_index = k;
2463  }
2464  }
2465 
2466  /* init framerate emulation */
2467  for (i = 0; i < nb_input_files; i++) {
2468  InputFile *ifile = input_files[i];
2469  if (ifile->rate_emu)
2470  for (j = 0; j < ifile->nb_streams; j++)
2471  input_streams[j + ifile->ist_index]->start = av_gettime_relative();
2472  }
2473 
2474  /* output stream init */
2475  for (i = 0; i < nb_output_files; i++) {
2476  oc = output_files[i]->ctx;
2477  if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2478  av_dump_format(oc, i, oc->filename, 1);
2479  av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2480  return AVERROR(EINVAL);
2481  }
2482  }
2483 
2484  /* init complex filtergraphs */
2485  for (i = 0; i < nb_filtergraphs; i++)
2486  if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2487  return ret;
2488 
2489  /* for each output stream, we compute the right encoding parameters */
2490  for (i = 0; i < nb_output_streams; i++) {
2491  AVCodecContext *enc_ctx;
2492  AVCodecContext *dec_ctx = NULL;
2493  ost = output_streams[i];
2494  oc = output_files[ost->file_index]->ctx;
2495  ist = get_input_stream(ost);
2496 
2497  if (ost->attachment_filename)
2498  continue;
2499 
2500  enc_ctx = ost->enc_ctx;
2501 
2502  if (ist) {
2503  dec_ctx = ist->dec_ctx;
2504 
2505  ost->st->disposition = ist->st->disposition;
2506  enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
2507  enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
2508  } else {
2509  for (j=0; j<oc->nb_streams; j++) {
2510  AVStream *st = oc->streams[j];
2511  if (st != ost->st && st->codec->codec_type == enc_ctx->codec_type)
2512  break;
2513  }
2514  if (j == oc->nb_streams)
2515  if (enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO || enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
2517  }
2518 
2519  if (ost->stream_copy) {
2520  AVRational sar;
2521  uint64_t extra_size;
2522 
2523  av_assert0(ist && !ost->filter);
2524 
2525  extra_size = (uint64_t)dec_ctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2526 
2527  if (extra_size > INT_MAX) {
2528  return AVERROR(EINVAL);
2529  }
2530 
2531  /* if stream_copy is selected, no need to decode or encode */
2532  enc_ctx->codec_id = dec_ctx->codec_id;
2533  enc_ctx->codec_type = dec_ctx->codec_type;
2534 
2535  if (!enc_ctx->codec_tag) {
2536  unsigned int codec_tag;
2537  if (!oc->oformat->codec_tag ||
2538  av_codec_get_id (oc->oformat->codec_tag, dec_ctx->codec_tag) == enc_ctx->codec_id ||
2539  !av_codec_get_tag2(oc->oformat->codec_tag, dec_ctx->codec_id, &codec_tag))
2540  enc_ctx->codec_tag = dec_ctx->codec_tag;
2541  }
2542 
2543  enc_ctx->bit_rate = dec_ctx->bit_rate;
2544  enc_ctx->rc_max_rate = dec_ctx->rc_max_rate;
2545  enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size;
2546  enc_ctx->field_order = dec_ctx->field_order;
2547  enc_ctx->extradata = av_mallocz(extra_size);
2548  if (!enc_ctx->extradata) {
2549  return AVERROR(ENOMEM);
2550  }
2551  memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
2552  enc_ctx->extradata_size= dec_ctx->extradata_size;
2553  enc_ctx->bits_per_coded_sample = dec_ctx->bits_per_coded_sample;
2554 
2555  enc_ctx->time_base = ist->st->time_base;
2556  /*
2557  * Avi is a special case here because it supports variable fps but
2558  * having the fps and timebase differe significantly adds quite some
2559  * overhead
2560  */
2561  if(!strcmp(oc->oformat->name, "avi")) {
2562  if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
2563  && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
2564  && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(dec_ctx->time_base)
2565  && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(dec_ctx->time_base) < 1.0/500
2566  || copy_tb==2){
2567  enc_ctx->time_base.num = ist->st->r_frame_rate.den;
2568  enc_ctx->time_base.den = 2*ist->st->r_frame_rate.num;
2569  enc_ctx->ticks_per_frame = 2;
2570  } else if ( copy_tb<0 && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > 2*av_q2d(ist->st->time_base)
2571  && av_q2d(ist->st->time_base) < 1.0/500
2572  || copy_tb==0){
2573  enc_ctx->time_base = dec_ctx->time_base;
2574  enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
2575  enc_ctx->time_base.den *= 2;
2576  enc_ctx->ticks_per_frame = 2;
2577  }
2578  } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
2579  && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
2580  && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
2581  && strcmp(oc->oformat->name, "f4v")
2582  ) {
2583  if( copy_tb<0 && dec_ctx->time_base.den
2584  && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > av_q2d(ist->st->time_base)
2585  && av_q2d(ist->st->time_base) < 1.0/500
2586  || copy_tb==0){
2587  enc_ctx->time_base = dec_ctx->time_base;
2588  enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
2589  }
2590  }
2591  if ( enc_ctx->codec_tag == AV_RL32("tmcd")
2592  && dec_ctx->time_base.num < dec_ctx->time_base.den
2593  && dec_ctx->time_base.num > 0
2594  && 121LL*dec_ctx->time_base.num > dec_ctx->time_base.den) {
2595  enc_ctx->time_base = dec_ctx->time_base;
2596  }
2597 
2598  if (ist && !ost->frame_rate.num)
2599  ost->frame_rate = ist->framerate;
2600  if(ost->frame_rate.num)
2601  enc_ctx->time_base = av_inv_q(ost->frame_rate);
2602 
2603  av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den,
2604  enc_ctx->time_base.num, enc_ctx->time_base.den, INT_MAX);
2605 
2606  ost->parser = av_parser_init(enc_ctx->codec_id);
2607 
2608  switch (enc_ctx->codec_type) {
2609  case AVMEDIA_TYPE_AUDIO:
2610  if (audio_volume != 256) {
2611  av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2612  exit_program(1);
2613  }
2614  enc_ctx->channel_layout = dec_ctx->channel_layout;
2615  enc_ctx->sample_rate = dec_ctx->sample_rate;
2616  enc_ctx->channels = dec_ctx->channels;
2617  enc_ctx->frame_size = dec_ctx->frame_size;
2618  enc_ctx->audio_service_type = dec_ctx->audio_service_type;
2619  enc_ctx->block_align = dec_ctx->block_align;
2620  enc_ctx->delay = dec_ctx->delay;
2621  if((enc_ctx->block_align == 1 || enc_ctx->block_align == 1152 || enc_ctx->block_align == 576) && enc_ctx->codec_id == AV_CODEC_ID_MP3)
2622  enc_ctx->block_align= 0;
2623  if(enc_ctx->codec_id == AV_CODEC_ID_AC3)
2624  enc_ctx->block_align= 0;
2625  break;
2626  case AVMEDIA_TYPE_VIDEO:
2627  enc_ctx->pix_fmt = dec_ctx->pix_fmt;
2628  enc_ctx->width = dec_ctx->width;
2629  enc_ctx->height = dec_ctx->height;
2630  enc_ctx->has_b_frames = dec_ctx->has_b_frames;
2631  if (ost->frame_aspect_ratio.num) { // overridden by the -aspect cli option
2632  sar =
2634  (AVRational){ enc_ctx->height, enc_ctx->width });
2635  av_log(NULL, AV_LOG_WARNING, "Overriding aspect ratio "
2636  "with stream copy may produce invalid files\n");
2637  }
2638  else if (ist->st->sample_aspect_ratio.num)
2639  sar = ist->st->sample_aspect_ratio;
2640  else
2641  sar = dec_ctx->sample_aspect_ratio;
2642  ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio = sar;
2643  ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2644  break;
2645  case AVMEDIA_TYPE_SUBTITLE:
2646  enc_ctx->width = dec_ctx->width;
2647  enc_ctx->height = dec_ctx->height;
2648  break;
2649  case AVMEDIA_TYPE_DATA:
2651  break;
2652  default:
2653  abort();
2654  }
2655  } else {
2656  if (!ost->enc)
2657  ost->enc = avcodec_find_encoder(enc_ctx->codec_id);
2658  if (!ost->enc) {
2659  /* should only happen when a default codec is not present. */
2660  snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2661  avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2662  ret = AVERROR(EINVAL);
2663  goto dump_format;
2664  }
2665 
2666  if (ist)
2667  ist->decoding_needed++;
2668  ost->encoding_needed = 1;
2669 
2670  set_encoder_id(output_files[ost->file_index], ost);
2671 
2672  if (!ost->filter &&
2673  (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
2674  enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO)) {
2675  FilterGraph *fg;
2676  fg = init_simple_filtergraph(ist, ost);
2677  if (configure_filtergraph(fg)) {
2678  av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2679  exit_program(1);
2680  }
2681  }
2682 
2683  if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
2684  if (ost->filter && !ost->frame_rate.num)
2686  if (ist && !ost->frame_rate.num)
2687  ost->frame_rate = ist->framerate;
2688  if (ist && !ost->frame_rate.num)
2689  ost->frame_rate = ist->st->r_frame_rate;
2690  if (ist && !ost->frame_rate.num) {
2691  ost->frame_rate = (AVRational){25, 1};
2692  av_log(NULL, AV_LOG_WARNING,
2693  "No information "
2694  "about the input framerate is available. Falling "
2695  "back to a default value of 25fps for output stream #%d:%d. Use the -r option "
2696  "if you want a different framerate.\n",
2697  ost->file_index, ost->index);
2698  }
2699 // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2700  if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2702  ost->frame_rate = ost->enc->supported_framerates[idx];
2703  }
2704  if (enc_ctx->codec_id == AV_CODEC_ID_MPEG4) {
2705  av_reduce(&ost->frame_rate.num, &ost->frame_rate.den,
2706  ost->frame_rate.num, ost->frame_rate.den, 65535);
2707  }
2708  }
2709 
2710  switch (enc_ctx->codec_type) {
2711  case AVMEDIA_TYPE_AUDIO:
2712  enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format;
2713  enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2714  enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2715  enc_ctx->channels = avfilter_link_get_channels(ost->filter->filter->inputs[0]);
2716  enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
2717  break;
2718  case AVMEDIA_TYPE_VIDEO:
2719  enc_ctx->time_base = av_inv_q(ost->frame_rate);
2720  if (ost->filter && !(enc_ctx->time_base.num && enc_ctx->time_base.den))
2721  enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
2722  if ( av_q2d(enc_ctx->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
2724  av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
2725  "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
2726  }
2727  for (j = 0; j < ost->forced_kf_count; j++)
2728  ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2730  enc_ctx->time_base);
2731 
2732  enc_ctx->width = ost->filter->filter->inputs[0]->w;
2733  enc_ctx->height = ost->filter->filter->inputs[0]->h;
2734  enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2735  ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option
2736  av_mul_q(ost->frame_aspect_ratio, (AVRational){ enc_ctx->height, enc_ctx->width }) :
2738  if (!strncmp(ost->enc->name, "libx264", 7) &&
2739  enc_ctx->pix_fmt == AV_PIX_FMT_NONE &&
2741  av_log(NULL, AV_LOG_WARNING,
2742  "No pixel format specified, %s for H.264 encoding chosen.\n"
2743  "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2745  if (!strncmp(ost->enc->name, "mpeg2video", 10) &&
2746  enc_ctx->pix_fmt == AV_PIX_FMT_NONE &&
2748  av_log(NULL, AV_LOG_WARNING,
2749  "No pixel format specified, %s for MPEG-2 encoding chosen.\n"
2750  "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2752  enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
2753 
2754  ost->st->avg_frame_rate = ost->frame_rate;
2755 
2756  if (!dec_ctx ||
2757  enc_ctx->width != dec_ctx->width ||
2758  enc_ctx->height != dec_ctx->height ||
2759  enc_ctx->pix_fmt != dec_ctx->pix_fmt) {
2760  enc_ctx->bits_per_raw_sample = frame_bits_per_raw_sample;
2761  }
2762 
2763  if (ost->forced_keyframes) {
2764  if (!strncmp(ost->forced_keyframes, "expr:", 5)) {
2766  forced_keyframes_const_names, NULL, NULL, NULL, NULL, 0, NULL);
2767  if (ret < 0) {
2768  av_log(NULL, AV_LOG_ERROR,
2769  "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5);
2770  return ret;
2771  }
2776  } else {
2778  }
2779  }
2780  break;
2781  case AVMEDIA_TYPE_SUBTITLE:
2782  enc_ctx->time_base = (AVRational){1, 1000};
2783  if (!enc_ctx->width) {
2784  enc_ctx->width = input_streams[ost->source_index]->st->codec->width;
2785  enc_ctx->height = input_streams[ost->source_index]->st->codec->height;
2786  }
2787  break;
2788  default:
2789  abort();
2790  break;
2791  }
2792  /* two pass mode */
2793  if (enc_ctx->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
2794  char logfilename[1024];
2795  FILE *f;
2796 
2797  snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2798  ost->logfile_prefix ? ost->logfile_prefix :
2800  i);
2801  if (!strcmp(ost->enc->name, "libx264")) {
2802  av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2803  } else {
2804  if (enc_ctx->flags & CODEC_FLAG_PASS2) {
2805  char *logbuffer;
2806  size_t logbuffer_size;
2807  if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2808  av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2809  logfilename);
2810  exit_program(1);
2811  }
2812  enc_ctx->stats_in = logbuffer;
2813  }
2814  if (enc_ctx->flags & CODEC_FLAG_PASS1) {
2815  f = av_fopen_utf8(logfilename, "wb");
2816  if (!f) {
2817  av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2818  logfilename, strerror(errno));
2819  exit_program(1);
2820  }
2821  ost->logfile = f;
2822  }
2823  }
2824  }
2825  }
2826  }
2827 
2828  /* open each encoder */
2829  for (i = 0; i < nb_output_streams; i++) {
2830  ost = output_streams[i];
2831  if (ost->encoding_needed) {
2832  AVCodec *codec = ost->enc;
2833  AVCodecContext *dec = NULL;
2834 
2835  if ((ist = get_input_stream(ost)))
2836  dec = ist->dec_ctx;
2837  if (dec && dec->subtitle_header) {
2838  /* ASS code assumes this buffer is null terminated so add extra byte. */
2839  ost->enc_ctx->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
2840  if (!ost->enc_ctx->subtitle_header) {
2841  ret = AVERROR(ENOMEM);
2842  goto dump_format;
2843  }
2844  memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2845  ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
2846  }
2847  if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
2848  av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
2849  av_dict_set(&ost->encoder_opts, "side_data_only_packets", "1", 0);
2850 
2851  if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
2852  if (ret == AVERROR_EXPERIMENTAL)
2853  abort_codec_experimental(codec, 1);
2854  snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2855  ost->file_index, ost->index);
2856  goto dump_format;
2857  }
2858  if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
2859  !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
2860  av_buffersink_set_frame_size(ost->filter->filter,
2861  ost->enc_ctx->frame_size);
2862  assert_avoptions(ost->encoder_opts);
2863  if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000)
2864  av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2865  " It takes bits/s as argument, not kbits/s\n");
2866  } else {
2867  if (av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts) < 0) {
2868  av_log(NULL, AV_LOG_FATAL,
2869  "Error setting up codec context options.\n");
2870  exit_program(1);
2871  }
2872  }
2873 
2874  ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx);
2875  if (ret < 0) {
2876  av_log(NULL, AV_LOG_FATAL,
2877  "Error initializing the output stream codec context.\n");
2878  exit_program(1);
2879  }
2880  ost->st->codec->codec= ost->enc_ctx->codec;
2881 
2882  // copy timebase while removing common factors
2883  ost->st->time_base = av_add_q(ost->enc_ctx->time_base, (AVRational){0});
2884  }
2885 
2886  /* init input streams */
2887  for (i = 0; i < nb_input_streams; i++)
2888  if ((ret = init_input_stream(i, error, sizeof(error))) < 0) {
2889  for (i = 0; i < nb_output_streams; i++) {
2890  ost = output_streams[i];
2891  avcodec_close(ost->enc_ctx);
2892  }
2893  goto dump_format;
2894  }
2895 
2896  /* discard unused programs */
2897  for (i = 0; i < nb_input_files; i++) {
2898  InputFile *ifile = input_files[i];
2899  for (j = 0; j < ifile->ctx->nb_programs; j++) {
2900  AVProgram *p = ifile->ctx->programs[j];
2901  int discard = AVDISCARD_ALL;
2902 
2903  for (k = 0; k < p->nb_stream_indexes; k++)
2904  if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2905  discard = AVDISCARD_DEFAULT;
2906  break;
2907  }
2908  p->discard = discard;
2909  }
2910  }
2911 
2912  /* open files and write file headers */
2913  for (i = 0; i < nb_output_files; i++) {
2914  oc = output_files[i]->ctx;
2915  oc->interrupt_callback = int_cb;
2916  if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2917  snprintf(error, sizeof(error),
2918  "Could not write header for output file #%d "
2919  "(incorrect codec parameters ?): %s",
2920  i, av_err2str(ret));
2921  ret = AVERROR(EINVAL);
2922  goto dump_format;
2923  }
2924 // assert_avoptions(output_files[i]->opts);
2925  if (strcmp(oc->oformat->name, "rtp")) {
2926  want_sdp = 0;
2927  }
2928  }
2929 
2930  dump_format:
2931  /* dump the file output parameters - cannot be done before in case
2932  of stream copy */
2933  for (i = 0; i < nb_output_files; i++) {
2934  av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2935  }
2936 
2937  /* dump the stream mapping */
2938  av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2939  for (i = 0; i < nb_input_streams; i++) {
2940  ist = input_streams[i];
2941 
2942  for (j = 0; j < ist->nb_filters; j++) {
2943  if (ist->filters[j]->graph->graph_desc) {
2944  av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2945  ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2946  ist->filters[j]->name);
2947  if (nb_filtergraphs > 1)
2948  av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2949  av_log(NULL, AV_LOG_INFO, "\n");
2950  }
2951  }
2952  }
2953 
2954  for (i = 0; i < nb_output_streams; i++) {
2955  ost = output_streams[i];
2956 
2957  if (ost->attachment_filename) {
2958  /* an attached file */
2959  av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2960  ost->attachment_filename, ost->file_index, ost->index);
2961  continue;
2962  }
2963 
2964  if (ost->filter && ost->filter->graph->graph_desc) {
2965  /* output from a complex graph */
2966  av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2967  if (nb_filtergraphs > 1)
2968  av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2969 
2970  av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2971  ost->index, ost->enc ? ost->enc->name : "?");
2972  continue;
2973  }
2974 
2975  av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2976  input_streams[ost->source_index]->file_index,
2977  input_streams[ost->source_index]->st->index,
2978  ost->file_index,
2979  ost->index);
2980  if (ost->sync_ist != input_streams[ost->source_index])
2981  av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2982  ost->sync_ist->file_index,
2983  ost->sync_ist->st->index);
2984  if (ost->stream_copy)
2985  av_log(NULL, AV_LOG_INFO, " (copy)");
2986  else {
2987  const AVCodec *in_codec = input_streams[ost->source_index]->dec;
2988  const AVCodec *out_codec = ost->enc;
2989  const char *decoder_name = "?";
2990  const char *in_codec_name = "?";
2991  const char *encoder_name = "?";
2992  const char *out_codec_name = "?";
2993 
2994  if (in_codec) {
2995  decoder_name = in_codec->name;
2996  in_codec_name = avcodec_descriptor_get(in_codec->id)->name;
2997  if (!strcmp(decoder_name, in_codec_name))
2998  decoder_name = "native";
2999  }
3000 
3001  if (out_codec) {
3002  encoder_name = out_codec->name;
3003  out_codec_name = avcodec_descriptor_get(out_codec->id)->name;
3004  if (!strcmp(encoder_name, out_codec_name))
3005  encoder_name = "native";
3006  }
3007 
3008  av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
3009  in_codec_name, decoder_name,
3010  out_codec_name, encoder_name);
3011  }
3012  av_log(NULL, AV_LOG_INFO, "\n");
3013  }
3014 
3015  if (ret) {
3016  av_log(NULL, AV_LOG_ERROR, "%s\n", error);
3017  return ret;
3018  }
3019 
3020  if (want_sdp) {
3021  print_sdp();
3022  }
3023 
3024  transcode_init_done = 1;
3025 
3026  return 0;
3027 }
3028 
3029 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
3030 static int need_output(void)
3031 {
3032  int i;
3033 
3034  for (i = 0; i < nb_output_streams; i++) {
3035  OutputStream *ost = output_streams[i];
3036  OutputFile *of = output_files[ost->file_index];
3037  AVFormatContext *os = output_files[ost->file_index]->ctx;
3038 
3039  if (ost->finished ||
3040  (os->pb && avio_tell(os->pb) >= of->limit_filesize))
3041  continue;
3042  if (ost->frame_number >= ost->max_frames) {
3043  int j;
3044  for (j = 0; j < of->ctx->nb_streams; j++)
3045  close_output_stream(output_streams[of->ost_index + j]);
3046  continue;
3047  }
3048 
3049  return 1;
3050  }
3051 
3052  return 0;
3053 }
3054 
3055 /**
3056  * Select the output stream to process.
3057  *
3058  * @return selected output stream, or NULL if none available
3059  */
3061 {
3062  int i;
3063  int64_t opts_min = INT64_MAX;
3064  OutputStream *ost_min = NULL;
3065 
3066  for (i = 0; i < nb_output_streams; i++) {
3067  OutputStream *ost = output_streams[i];
3068  int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
3069  AV_TIME_BASE_Q);
3070  if (!ost->unavailable && !ost->finished && opts < opts_min) {
3071  opts_min = opts;
3072  ost_min = ost;
3073  }
3074  }
3075  return ost_min;
3076 }
3077 
3079 {
3080  int i, ret, key;
3081  static int64_t last_time;
3082  if (received_nb_signals)
3083  return AVERROR_EXIT;
3084  /* read_key() returns 0 on EOF */
3085  if(cur_time - last_time >= 100000 && !run_as_daemon){
3086  key = read_key();
3087  last_time = cur_time;
3088  }else
3089  key = -1;
3090  if (key == 'q')
3091  return AVERROR_EXIT;
3092  if (key == '+') av_log_set_level(av_log_get_level()+10);
3093  if (key == '-') av_log_set_level(av_log_get_level()-10);
3094  if (key == 's') qp_hist ^= 1;
3095  if (key == 'h'){
3096  if (do_hex_dump){
3097  do_hex_dump = do_pkt_dump = 0;
3098  } else if(do_pkt_dump){
3099  do_hex_dump = 1;
3100  } else
3101  do_pkt_dump = 1;
3103  }
3104  if (key == 'c' || key == 'C'){
3105  char buf[4096], target[64], command[256], arg[256] = {0};
3106  double time;
3107  int k, n = 0;
3108  fprintf(stderr, "\nEnter command: <target>|all <time>|-1 <command>[ <argument>]\n");
3109  i = 0;
3110  while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
3111  if (k > 0)
3112  buf[i++] = k;
3113  buf[i] = 0;
3114  if (k > 0 &&
3115  (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
3116  av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
3117  target, time, command, arg);
3118  for (i = 0; i < nb_filtergraphs; i++) {
3119  FilterGraph *fg = filtergraphs[i];
3120  if (fg->graph) {
3121  if (time < 0) {
3122  ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
3123  key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
3124  fprintf(stderr, "Command reply for stream %d: ret:%d res:\n%s", i, ret, buf);
3125  } else if (key == 'c') {
3126  fprintf(stderr, "Queing commands only on filters supporting the specific command is unsupported\n");
3127  ret = AVERROR_PATCHWELCOME;
3128  } else {
3129  ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
3130  }
3131  }
3132  }
3133  } else {
3134  av_log(NULL, AV_LOG_ERROR,
3135  "Parse error, at least 3 arguments were expected, "
3136  "only %d given in string '%s'\n", n, buf);
3137  }
3138  }
3139  if (key == 'd' || key == 'D'){
3140  int debug=0;
3141  if(key == 'D') {
3142  debug = input_streams[0]->st->codec->debug<<1;
3143  if(!debug) debug = 1;
3144  while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
3145  debug += debug;
3146  }else
3147  if(scanf("%d", &debug)!=1)
3148  fprintf(stderr,"error parsing debug value\n");
3149  for(i=0;i<nb_input_streams;i++) {
3150  input_streams[i]->st->codec->debug = debug;
3151  }
3152  for(i=0;i<nb_output_streams;i++) {
3153  OutputStream *ost = output_streams[i];
3154  ost->enc_ctx->debug = debug;
3155  }
3156  if(debug) av_log_set_level(AV_LOG_DEBUG);
3157  fprintf(stderr,"debug=%d\n", debug);
3158  }
3159  if (key == '?'){
3160  fprintf(stderr, "key function\n"
3161  "? show this help\n"
3162  "+ increase verbosity\n"
3163  "- decrease verbosity\n"
3164  "c Send command to first matching filter supporting it\n"
3165  "C Send/Que command to all matching filters\n"
3166  "D cycle through available debug modes\n"
3167  "h dump packets/hex press to cycle through the 3 states\n"
3168  "q quit\n"
3169  "s Show QP histogram\n"
3170  );
3171  }
3172  return 0;
3173 }
3174 
3175 #if HAVE_PTHREADS
3176 static void *input_thread(void *arg)
3177 {
3178  InputFile *f = arg;
3179  int ret = 0;
3180 
3181  while (1) {
3182  AVPacket pkt;
3183  ret = av_read_frame(f->ctx, &pkt);
3184 
3185  if (ret == AVERROR(EAGAIN)) {
3186  av_usleep(10000);
3187  continue;
3188  }
3189  if (ret < 0) {
3190  av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
3191  break;
3192  }
3193  av_dup_packet(&pkt);
3194  ret = av_thread_message_queue_send(f->in_thread_queue, &pkt, 0);
3195  if (ret < 0) {
3196  if (ret != AVERROR_EOF)
3197  av_log(f->ctx, AV_LOG_ERROR,
3198  "Unable to send packet to main thread: %s\n",
3199  av_err2str(ret));
3200  av_free_packet(&pkt);
3201  av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
3202  break;
3203  }
3204  }
3205 
3206  return NULL;
3207 }
3208 
3209 static void free_input_threads(void)
3210 {
3211  int i;
3212 
3213  for (i = 0; i < nb_input_files; i++) {
3214  InputFile *f = input_files[i];
3215  AVPacket pkt;
3216 
3217  if (!f->in_thread_queue)
3218  continue;
3220  while (av_thread_message_queue_recv(f->in_thread_queue, &pkt, 0) >= 0)
3221  av_free_packet(&pkt);
3222 
3223  pthread_join(f->thread, NULL);
3224  f->joined = 1;
3225  av_thread_message_queue_free(&f->in_thread_queue);
3226  }
3227 }
3228 
3229 static int init_input_threads(void)
3230 {
3231  int i, ret;
3232 
3233  if (nb_input_files == 1)
3234  return 0;
3235 
3236  for (i = 0; i < nb_input_files; i++) {
3237  InputFile *f = input_files[i];
3238 
3239  if (f->ctx->pb ? !f->ctx->pb->seekable :
3240  strcmp(f->ctx->iformat->name, "lavfi"))
3241  f->non_blocking = 1;
3242  ret = av_thread_message_queue_alloc(&f->in_thread_queue,
3243  8, sizeof(AVPacket));
3244  if (ret < 0)
3245  return ret;
3246 
3247  if ((ret = pthread_create(&f->thread, NULL, input_thread, f))) {
3248  av_log(NULL, AV_LOG_ERROR, "pthread_create failed: %s. Try to increase `ulimit -v` or decrease `ulimit -s`.\n", strerror(ret));
3249  av_thread_message_queue_free(&f->in_thread_queue);
3250  return AVERROR(ret);
3251  }
3252  }
3253  return 0;
3254 }
3255 
3256 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
3257 {
3258  return av_thread_message_queue_recv(f->in_thread_queue, pkt,
3259  f->non_blocking ?
3261 }
3262 #endif
3263 
3265 {
3266  if (f->rate_emu) {
3267  int i;
3268  for (i = 0; i < f->nb_streams; i++) {
3269  InputStream *ist = input_streams[f->ist_index + i];
3270  int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
3271  int64_t now = av_gettime_relative() - ist->start;
3272  if (pts > now)
3273  return AVERROR(EAGAIN);
3274  }
3275  }
3276 
3277 #if HAVE_PTHREADS
3278  if (nb_input_files > 1)
3279  return get_input_packet_mt(f, pkt);
3280 #endif
3281  return av_read_frame(f->ctx, pkt);
3282 }
3283 
3284 static int got_eagain(void)
3285 {
3286  int i;
3287  for (i = 0; i < nb_output_streams; i++)
3288  if (output_streams[i]->unavailable)
3289  return 1;
3290  return 0;
3291 }
3292 
3293 static void reset_eagain(void)
3294 {
3295  int i;
3296  for (i = 0; i < nb_input_files; i++)
3297  input_files[i]->eagain = 0;
3298  for (i = 0; i < nb_output_streams; i++)
3299  output_streams[i]->unavailable = 0;
3300 }
3301 
3302 /*
3303  * Return
3304  * - 0 -- one packet was read and processed
3305  * - AVERROR(EAGAIN) -- no packets were available for selected file,
3306  * this function should be called again
3307  * - AVERROR_EOF -- this function should not be called again
3308  */
3309 static int process_input(int file_index)
3310 {
3311  InputFile *ifile = input_files[file_index];
3312  AVFormatContext *is;
3313  InputStream *ist;
3314  AVPacket pkt;
3315  int ret, i, j;
3316 
3317  is = ifile->ctx;
3318  ret = get_input_packet(ifile, &pkt);
3319 
3320  if (ret == AVERROR(EAGAIN)) {
3321  ifile->eagain = 1;
3322  return ret;
3323  }
3324  if (ret < 0) {
3325  if (ret != AVERROR_EOF) {
3326  print_error(is->filename, ret);
3327  if (exit_on_error)
3328  exit_program(1);
3329  }
3330 
3331  for (i = 0; i < ifile->nb_streams; i++) {
3332  ist = input_streams[ifile->ist_index + i];
3333  if (ist->decoding_needed) {
3334  ret = output_packet(ist, NULL);
3335  if (ret>0)
3336  return 0;
3337  }
3338 
3339  /* mark all outputs that don't go through lavfi as finished */
3340  for (j = 0; j < nb_output_streams; j++) {
3341  OutputStream *ost = output_streams[j];
3342 
3343  if (ost->source_index == ifile->ist_index + i &&
3344  (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
3345  finish_output_stream(ost);
3346  }
3347  }
3348 
3349  ifile->eof_reached = 1;
3350  return AVERROR(EAGAIN);
3351  }
3352 
3353  reset_eagain();
3354 
3355  if (do_pkt_dump) {
3357  is->streams[pkt.stream_index]);
3358  }
3359  /* the following test is needed in case new streams appear
3360  dynamically in stream : we ignore them */
3361  if (pkt.stream_index >= ifile->nb_streams) {
3362  report_new_stream(file_index, &pkt);
3363  goto discard_packet;
3364  }
3365 
3366  ist = input_streams[ifile->ist_index + pkt.stream_index];
3367 
3368  ist->data_size += pkt.size;
3369  ist->nb_packets++;
3370 
3371  if (ist->discard)
3372  goto discard_packet;
3373 
3374  if (debug_ts) {
3375  av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
3376  "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",
3380  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3381  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3382  av_ts2str(input_files[ist->file_index]->ts_offset),
3383  av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3384  }
3385 
3386  if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
3387  int64_t stime, stime2;
3388  // Correcting starttime based on the enabled streams
3389  // 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.
3390  // so we instead do it here as part of discontinuity handling
3391  if ( ist->next_dts == AV_NOPTS_VALUE
3392  && ifile->ts_offset == -is->start_time
3393  && (is->iformat->flags & AVFMT_TS_DISCONT)) {
3394  int64_t new_start_time = INT64_MAX;
3395  for (i=0; i<is->nb_streams; i++) {
3396  AVStream *st = is->streams[i];
3397  if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
3398  continue;
3399  new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
3400  }
3401  if (new_start_time > is->start_time) {
3402  av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
3403  ifile->ts_offset = -new_start_time;
3404  }
3405  }
3406 
3407  stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
3408  stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
3409  ist->wrap_correction_done = 1;
3410 
3411  if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
3412  pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
3413  ist->wrap_correction_done = 0;
3414  }
3415  if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
3416  pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
3417  ist->wrap_correction_done = 0;
3418  }
3419  }
3420 
3421  /* add the stream-global side data to the first packet */
3422  if (ist->nb_packets == 1)
3423  if (ist->st->nb_side_data)
3425  for (i = 0; i < ist->st->nb_side_data; i++) {
3426  AVPacketSideData *src_sd = &ist->st->side_data[i];
3427  uint8_t *dst_data;
3428 
3429  if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
3430  continue;
3431 
3432  dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
3433  if (!dst_data)
3434  exit_program(1);
3435 
3436  memcpy(dst_data, src_sd->data, src_sd->size);
3437  }
3438 
3439  if (pkt.dts != AV_NOPTS_VALUE)
3440  pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3441  if (pkt.pts != AV_NOPTS_VALUE)
3442  pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3443 
3444  if (pkt.pts != AV_NOPTS_VALUE)
3445  pkt.pts *= ist->ts_scale;
3446  if (pkt.dts != AV_NOPTS_VALUE)
3447  pkt.dts *= ist->ts_scale;
3448 
3449  if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts == AV_NOPTS_VALUE && !copy_ts
3450  && (is->iformat->flags & AVFMT_TS_DISCONT) && ifile->last_ts != AV_NOPTS_VALUE) {
3451  int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3452  int64_t delta = pkt_dts - ifile->last_ts;
3453  if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3454  (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
3456  ifile->ts_offset -= delta;
3457  av_log(NULL, AV_LOG_DEBUG,
3458  "Inter stream timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3459  delta, ifile->ts_offset);
3460  pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3461  if (pkt.pts != AV_NOPTS_VALUE)
3462  pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3463  }
3464  }
3465 
3466  if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
3467  !copy_ts) {
3468  int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3469  int64_t delta = pkt_dts - ist->next_dts;
3470  if (is->iformat->flags & AVFMT_TS_DISCONT) {
3471  if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3472  (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
3474  pkt_dts + AV_TIME_BASE/10 < FFMAX(ist->pts, ist->dts)) {
3475  ifile->ts_offset -= delta;
3476  av_log(NULL, AV_LOG_DEBUG,
3477  "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3478  delta, ifile->ts_offset);
3479  pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3480  if (pkt.pts != AV_NOPTS_VALUE)
3481  pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3482  }
3483  } else {
3484  if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3486  av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
3487  pkt.dts = AV_NOPTS_VALUE;
3488  }
3489  if (pkt.pts != AV_NOPTS_VALUE){
3490  int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
3491  delta = pkt_pts - ist->next_dts;
3492  if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3494  av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
3495  pkt.pts = AV_NOPTS_VALUE;
3496  }
3497  }
3498  }
3499  }
3500 
3501  if (pkt.dts != AV_NOPTS_VALUE)
3502  ifile->last_ts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3503 
3504  if (debug_ts) {
3505  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",
3507  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3508  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3509  av_ts2str(input_files[ist->file_index]->ts_offset),
3510  av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3511  }
3512 
3513  sub2video_heartbeat(ist, pkt.pts);
3514 
3515  ret = output_packet(ist, &pkt);
3516  if (ret < 0) {
3517  av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
3518  ist->file_index, ist->st->index, av_err2str(ret));
3519  if (exit_on_error)
3520  exit_program(1);
3521  }
3522 
3523 discard_packet:
3524  av_free_packet(&pkt);
3525 
3526  return 0;
3527 }
3528 
3529 /**
3530  * Perform a step of transcoding for the specified filter graph.
3531  *
3532  * @param[in] graph filter graph to consider
3533  * @param[out] best_ist input stream where a frame would allow to continue
3534  * @return 0 for success, <0 for error
3535  */
3536 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
3537 {
3538  int i, ret;
3539  int nb_requests, nb_requests_max = 0;
3540  InputFilter *ifilter;
3541  InputStream *ist;
3542 
3543  *best_ist = NULL;
3544  ret = avfilter_graph_request_oldest(graph->graph);
3545  if (ret >= 0)
3546  return reap_filters();
3547 
3548  if (ret == AVERROR_EOF) {
3549  ret = reap_filters();
3550  for (i = 0; i < graph->nb_outputs; i++)
3551  close_output_stream(graph->outputs[i]->ost);
3552  return ret;
3553  }
3554  if (ret != AVERROR(EAGAIN))
3555  return ret;
3556 
3557  for (i = 0; i < graph->nb_inputs; i++) {
3558  ifilter = graph->inputs[i];
3559  ist = ifilter->ist;
3560  if (input_files[ist->file_index]->eagain ||
3561  input_files[ist->file_index]->eof_reached)
3562  continue;
3563  nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
3564  if (nb_requests > nb_requests_max) {
3565  nb_requests_max = nb_requests;
3566  *best_ist = ist;
3567  }
3568  }
3569 
3570  if (!*best_ist)
3571  for (i = 0; i < graph->nb_outputs; i++)
3572  graph->outputs[i]->ost->unavailable = 1;
3573 
3574  return 0;
3575 }
3576 
3577 /**
3578  * Run a single step of transcoding.
3579  *
3580  * @return 0 for success, <0 for error
3581  */
3582 static int transcode_step(void)
3583 {
3584  OutputStream *ost;
3585  InputStream *ist;
3586  int ret;
3587 
3588  ost = choose_output();
3589  if (!ost) {
3590  if (got_eagain()) {
3591  reset_eagain();
3592  av_usleep(10000);
3593  return 0;
3594  }
3595  av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
3596  return AVERROR_EOF;
3597  }
3598 
3599  if (ost->filter) {
3600  if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
3601  return ret;
3602  if (!ist)
3603  return 0;
3604  } else {
3605  av_assert0(ost->source_index >= 0);
3606  ist = input_streams[ost->source_index];
3607  }
3608 
3609  ret = process_input(ist->file_index);
3610  if (ret == AVERROR(EAGAIN)) {
3611  if (input_files[ist->file_index]->eagain)
3612  ost->unavailable = 1;
3613  return 0;
3614  }
3615  if (ret < 0)
3616  return ret == AVERROR_EOF ? 0 : ret;
3617 
3618  return reap_filters();
3619 }
3620 
3621 /*
3622  * The following code is the main loop of the file converter
3623  */
3624 static int transcode(void)
3625 {
3626  int ret, i;
3627  AVFormatContext *os;
3628  OutputStream *ost;
3629  InputStream *ist;
3630  int64_t timer_start;
3631 
3632  ret = transcode_init();
3633  if (ret < 0)
3634  goto fail;
3635 
3636  if (stdin_interaction) {
3637  av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
3638  }
3639 
3640  timer_start = av_gettime_relative();
3641 
3642 #if HAVE_PTHREADS
3643  if ((ret = init_input_threads()) < 0)
3644  goto fail;
3645 #endif
3646 
3647  while (!received_sigterm) {
3648  int64_t cur_time= av_gettime_relative();
3649 
3650  /* if 'q' pressed, exits */
3651  if (stdin_interaction)
3652  if (check_keyboard_interaction(cur_time) < 0)
3653  break;
3654 
3655  /* check if there's any stream where output is still needed */
3656  if (!need_output()) {
3657  av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3658  break;
3659  }
3660 
3661  ret = transcode_step();
3662  if (ret < 0) {
3663  if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
3664  continue;
3665 
3666  av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
3667  break;
3668  }
3669 
3670  /* dump report by using the output first video and audio streams */
3671  print_report(0, timer_start, cur_time);
3672  }
3673 #if HAVE_PTHREADS
3675 #endif
3676 
3677  /* at the end of stream, we must flush the decoder buffers */
3678  for (i = 0; i < nb_input_streams; i++) {
3679  ist = input_streams[i];
3680  if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
3681  output_packet(ist, NULL);
3682  }
3683  }
3684  flush_encoders();
3685 
3686  term_exit();
3687 
3688  /* write the trailer if needed and close file */
3689  for (i = 0; i < nb_output_files; i++) {
3690  os = output_files[i]->ctx;
3691  av_write_trailer(os);
3692  }
3693 
3694  /* dump report by using the first video and audio streams */
3695  print_report(1, timer_start, av_gettime_relative());
3696 
3697  /* close each encoder */
3698  for (i = 0; i < nb_output_streams; i++) {
3699  ost = output_streams[i];
3700  if (ost->encoding_needed) {
3701  av_freep(&ost->enc_ctx->stats_in);
3702  }
3703  }
3704 
3705  /* close each decoder */
3706  for (i = 0; i < nb_input_streams; i++) {
3707  ist = input_streams[i];
3708  if (ist->decoding_needed) {
3709  avcodec_close(ist->dec_ctx);
3710  if (ist->hwaccel_uninit)
3711  ist->hwaccel_uninit(ist->dec_ctx);
3712  }
3713  }
3714 
3715  /* finished ! */
3716  ret = 0;
3717 
3718  fail:
3719 #if HAVE_PTHREADS
3721 #endif
3722 
3723  if (output_streams) {
3724  for (i = 0; i < nb_output_streams; i++) {
3725  ost = output_streams[i];
3726  if (ost) {
3727  if (ost->logfile) {
3728  fclose(ost->logfile);
3729  ost->logfile = NULL;
3730  }
3731  av_freep(&ost->forced_kf_pts);
3732  av_freep(&ost->apad);
3733  av_dict_free(&ost->encoder_opts);
3734  av_dict_free(&ost->swr_opts);
3735  av_dict_free(&ost->resample_opts);
3736  }
3737  }
3738  }
3739  return ret;
3740 }
3741 
3742 
3743 static int64_t getutime(void)
3744 {
3745 #if HAVE_GETRUSAGE
3746  struct rusage rusage;
3747 
3748  getrusage(RUSAGE_SELF, &rusage);
3749  return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3750 #elif HAVE_GETPROCESSTIMES
3751  HANDLE proc;
3752  FILETIME c, e, k, u;
3753  proc = GetCurrentProcess();
3754  GetProcessTimes(proc, &c, &e, &k, &u);
3755  return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3756 #else
3757  return av_gettime();
3758 #endif
3759 }
3760 
3761 static int64_t getmaxrss(void)
3762 {
3763 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3764  struct rusage rusage;
3765  getrusage(RUSAGE_SELF, &rusage);
3766  return (int64_t)rusage.ru_maxrss * 1024;
3767 #elif HAVE_GETPROCESSMEMORYINFO
3768  HANDLE proc;
3769  PROCESS_MEMORY_COUNTERS memcounters;
3770  proc = GetCurrentProcess();
3771  memcounters.cb = sizeof(memcounters);
3772  GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3773  return memcounters.PeakPagefileUsage;
3774 #else
3775  return 0;
3776 #endif
3777 }
3778 
3779 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
3780 {
3781 }
3782 
3783 int main(int argc, char **argv)
3784 {
3785  int ret;
3786  int64_t ti;
3787 
3789 
3790  setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
3791 
3793  parse_loglevel(argc, argv, options);
3794 
3795  if(argc>1 && !strcmp(argv[1], "-d")){
3796  run_as_daemon=1;
3798  argc--;
3799  argv++;
3800  }
3801 
3803 #if CONFIG_AVDEVICE
3805 #endif
3807  av_register_all();
3809 
3810  show_banner(argc, argv, options);
3811 
3812  term_init();
3813 
3814  /* parse options and open all input/output files */
3815  ret = ffmpeg_parse_options(argc, argv);
3816  if (ret < 0)
3817  exit_program(1);
3818 
3819  if (nb_output_files <= 0 && nb_input_files == 0) {
3820  show_usage();
3821  av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3822  exit_program(1);
3823  }
3824 
3825  /* file converter / grab */
3826  if (nb_output_files <= 0) {
3827  av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
3828  exit_program(1);
3829  }
3830 
3831 // if (nb_input_files == 0) {
3832 // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
3833 // exit_program(1);
3834 // }
3835 
3836  current_time = ti = getutime();
3837  if (transcode() < 0)
3838  exit_program(1);
3839  ti = getutime() - ti;
3840  if (do_benchmark) {
3841  printf("bench: utime=%0.3fs\n", ti / 1000000.0);
3842  }
3843  av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n",
3846  exit_program(69);
3847 
3849  return main_return_code;
3850 }