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  ost->audio_channels_mapped = 0;
488 
490 
491  av_freep(&output_streams[i]);
492  }
493 #if HAVE_PTHREADS
495 #endif
496  for (i = 0; i < nb_input_files; i++) {
497  avformat_close_input(&input_files[i]->ctx);
498  av_freep(&input_files[i]);
499  }
500  for (i = 0; i < nb_input_streams; i++) {
501  InputStream *ist = input_streams[i];
502 
505  av_dict_free(&ist->decoder_opts);
508  av_freep(&ist->filters);
509  av_freep(&ist->hwaccel_device);
510 
512 
513  av_freep(&input_streams[i]);
514  }
515 
516  if (vstats_file)
517  fclose(vstats_file);
519 
520  av_freep(&input_streams);
521  av_freep(&input_files);
522  av_freep(&output_streams);
523  av_freep(&output_files);
524 
525  uninit_opts();
526 
528 
529  if (received_sigterm) {
530  av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
531  (int) received_sigterm);
532  } else if (ret && transcode_init_done) {
533  av_log(NULL, AV_LOG_INFO, "Conversion failed!\n");
534  }
535  term_exit();
536 }
537 
539 {
540  AVDictionaryEntry *t = NULL;
541 
542  while ((t = av_dict_get(b, "", t, AV_DICT_IGNORE_SUFFIX))) {
543  av_dict_set(a, t->key, NULL, AV_DICT_MATCH_CASE);
544  }
545 }
546 
548 {
550  if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
551  av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
552  exit_program(1);
553  }
554 }
555 
556 static void abort_codec_experimental(AVCodec *c, int encoder)
557 {
558  exit_program(1);
559 }
560 
561 static void update_benchmark(const char *fmt, ...)
562 {
563  if (do_benchmark_all) {
564  int64_t t = getutime();
565  va_list va;
566  char buf[1024];
567 
568  if (fmt) {
569  va_start(va, fmt);
570  vsnprintf(buf, sizeof(buf), fmt, va);
571  va_end(va);
572  printf("bench: %8"PRIu64" %s \n", t - current_time, buf);
573  }
574  current_time = t;
575  }
576 }
577 
578 static void close_all_output_streams(OutputStream *ost, OSTFinished this_stream, OSTFinished others)
579 {
580  int i;
581  for (i = 0; i < nb_output_streams; i++) {
582  OutputStream *ost2 = output_streams[i];
583  ost2->finished |= ost == ost2 ? this_stream : others;
584  }
585 }
586 
588 {
590  AVCodecContext *avctx = ost->st->codec;
591  int ret;
592 
595  pkt->pts = pkt->dts = AV_NOPTS_VALUE;
596 
597  /*
598  * Audio encoders may split the packets -- #frames in != #packets out.
599  * But there is no reordering, so we can limit the number of output packets
600  * by simply dropping them here.
601  * Counting encoded video frames needs to be done separately because of
602  * reordering, see do_video_out()
603  */
604  if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
605  if (ost->frame_number >= ost->max_frames) {
606  av_free_packet(pkt);
607  return;
608  }
609  ost->frame_number++;
610  }
611 
612  if (bsfc)
614 
615  while (bsfc) {
616  AVPacket new_pkt = *pkt;
617  int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
618  &new_pkt.data, &new_pkt.size,
619  pkt->data, pkt->size,
620  pkt->flags & AV_PKT_FLAG_KEY);
621  if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) {
622  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
623  if(t) {
624  memcpy(t, new_pkt.data, new_pkt.size);
625  memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
626  new_pkt.data = t;
627  new_pkt.buf = NULL;
628  a = 1;
629  } else
630  a = AVERROR(ENOMEM);
631  }
632  if (a > 0) {
633  pkt->side_data = NULL;
634  pkt->side_data_elems = 0;
635  av_free_packet(pkt);
636  new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
637  av_buffer_default_free, NULL, 0);
638  if (!new_pkt.buf)
639  exit_program(1);
640  } else if (a < 0) {
641  av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
642  bsfc->filter->name, pkt->stream_index,
643  avctx->codec ? avctx->codec->name : "copy");
644  print_error("", a);
645  if (exit_on_error)
646  exit_program(1);
647  }
648  *pkt = new_pkt;
649 
650  bsfc = bsfc->next;
651  }
652 
653  if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS)) {
654  if(
655  (avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) &&
656  pkt->dts != AV_NOPTS_VALUE &&
657  ost->last_mux_dts != AV_NOPTS_VALUE) {
658  int64_t max = ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
659  if (pkt->dts < max) {
660  int loglevel = max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG;
661  av_log(s, loglevel, "Non-monotonous DTS in output stream "
662  "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
663  ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
664  if (exit_on_error) {
665  av_log(NULL, AV_LOG_FATAL, "aborting.\n");
666  exit_program(1);
667  }
668  av_log(s, loglevel, "changing to %"PRId64". This may result "
669  "in incorrect timestamps in the output file.\n",
670  max);
671  if(pkt->pts >= pkt->dts)
672  pkt->pts = FFMAX(pkt->pts, max);
673  pkt->dts = max;
674  }
675  }
676  if (pkt->dts != AV_NOPTS_VALUE &&
677  pkt->pts != AV_NOPTS_VALUE &&
678  pkt->dts > pkt->pts) {
679  av_log(s, AV_LOG_WARNING, "Invalid DTS: %"PRId64" PTS: %"PRId64" in output stream %d:%d\n",
680  pkt->dts, pkt->pts,
681  ost->file_index, ost->st->index);
682  pkt->pts = AV_NOPTS_VALUE;
683  pkt->dts = AV_NOPTS_VALUE;
684  }
685  }
686  ost->last_mux_dts = pkt->dts;
687 
688  ost->data_size += pkt->size;
689  ost->packets_written++;
690 
691  pkt->stream_index = ost->index;
692 
693  if (debug_ts) {
694  av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
695  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
697  av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
698  av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
699  pkt->size
700  );
701  }
702 
703  ret = av_interleaved_write_frame(s, pkt);
704  if (ret < 0) {
705  print_error("av_interleaved_write_frame()", ret);
706  main_return_code = 1;
708  }
709  av_free_packet(pkt);
710 }
711 
713 {
714  OutputFile *of = output_files[ost->file_index];
715 
716  ost->finished |= ENCODER_FINISHED;
717  if (of->shortest) {
718  int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, AV_TIME_BASE_Q);
719  of->recording_time = FFMIN(of->recording_time, end);
720  }
721 }
722 
724 {
725  OutputFile *of = output_files[ost->file_index];
726 
727  if (of->recording_time != INT64_MAX &&
729  AV_TIME_BASE_Q) >= 0) {
730  close_output_stream(ost);
731  return 0;
732  }
733  return 1;
734 }
735 
737  AVFrame *frame)
738 {
739  AVCodecContext *enc = ost->enc_ctx;
740  AVPacket pkt;
741  int got_packet = 0;
742 
743  av_init_packet(&pkt);
744  pkt.data = NULL;
745  pkt.size = 0;
746 
747  if (!check_recording_time(ost))
748  return;
749 
750  if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
751  frame->pts = ost->sync_opts;
752  ost->sync_opts = frame->pts + frame->nb_samples;
753  ost->samples_encoded += frame->nb_samples;
754  ost->frames_encoded++;
755 
756  av_assert0(pkt.size || !pkt.data);
757  update_benchmark(NULL);
758  if (debug_ts) {
759  av_log(NULL, AV_LOG_INFO, "encoder <- type:audio "
760  "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
761  av_ts2str(frame->pts), av_ts2timestr(frame->pts, &enc->time_base),
762  enc->time_base.num, enc->time_base.den);
763  }
764 
765  if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
766  av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
767  exit_program(1);
768  }
769  update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
770 
771  if (got_packet) {
772  av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
773 
774  if (debug_ts) {
775  av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
776  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
777  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
778  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
779  }
780 
781  write_frame(s, &pkt, ost);
782  }
783 }
784 
786  OutputStream *ost,
787  InputStream *ist,
788  AVSubtitle *sub)
789 {
790  int subtitle_out_max_size = 1024 * 1024;
791  int subtitle_out_size, nb, i;
792  AVCodecContext *enc;
793  AVPacket pkt;
794  int64_t pts;
795 
796  if (sub->pts == AV_NOPTS_VALUE) {
797  av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
798  if (exit_on_error)
799  exit_program(1);
800  return;
801  }
802 
803  enc = ost->enc_ctx;
804 
805  if (!subtitle_out) {
806  subtitle_out = av_malloc(subtitle_out_max_size);
807  }
808 
809  /* Note: DVB subtitle need one packet to draw them and one other
810  packet to clear them */
811  /* XXX: signal it in the codec context ? */
813  nb = 2;
814  else
815  nb = 1;
816 
817  /* shift timestamp to honor -ss and make check_recording_time() work with -t */
818  pts = sub->pts;
819  if (output_files[ost->file_index]->start_time != AV_NOPTS_VALUE)
820  pts -= output_files[ost->file_index]->start_time;
821  for (i = 0; i < nb; i++) {
822  unsigned save_num_rects = sub->num_rects;
823 
824  ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
825  if (!check_recording_time(ost))
826  return;
827 
828  sub->pts = pts;
829  // start_display_time is required to be 0
830  sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
832  sub->start_display_time = 0;
833  if (i == 1)
834  sub->num_rects = 0;
835 
836  ost->frames_encoded++;
837 
838  subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
839  subtitle_out_max_size, sub);
840  if (i == 1)
841  sub->num_rects = save_num_rects;
842  if (subtitle_out_size < 0) {
843  av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
844  exit_program(1);
845  }
846 
847  av_init_packet(&pkt);
848  pkt.data = subtitle_out;
849  pkt.size = subtitle_out_size;
850  pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
851  pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
852  if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
853  /* XXX: the pts correction is handled here. Maybe handling
854  it in the codec would be better */
855  if (i == 0)
856  pkt.pts += 90 * sub->start_display_time;
857  else
858  pkt.pts += 90 * sub->end_display_time;
859  }
860  pkt.dts = pkt.pts;
861  write_frame(s, &pkt, ost);
862  }
863 }
864 
866  OutputStream *ost,
867  AVFrame *in_picture)
868 {
869  int ret, format_video_sync;
870  AVPacket pkt;
871  AVCodecContext *enc = ost->enc_ctx;
872  AVCodecContext *mux_enc = ost->st->codec;
873  int nb_frames, i;
874  double sync_ipts, delta;
875  double duration = 0;
876  int frame_size = 0;
877  InputStream *ist = NULL;
878 
879  if (ost->source_index >= 0)
880  ist = input_streams[ost->source_index];
881 
882  if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
883  duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
884 
885  sync_ipts = in_picture->pts;
886  delta = sync_ipts - ost->sync_opts + duration;
887 
888  /* by default, we output a single frame */
889  nb_frames = 1;
890 
891  format_video_sync = video_sync_method;
892  if (format_video_sync == VSYNC_AUTO) {
893  if(!strcmp(s->oformat->name, "avi")) {
894  format_video_sync = VSYNC_VFR;
895  } else
897  if ( ist
898  && format_video_sync == VSYNC_CFR
899  && input_files[ist->file_index]->ctx->nb_streams == 1
900  && input_files[ist->file_index]->input_ts_offset == 0) {
901  format_video_sync = VSYNC_VSCFR;
902  }
903  if (format_video_sync == VSYNC_CFR && copy_ts) {
904  format_video_sync = VSYNC_VSCFR;
905  }
906  }
907 
908  switch (format_video_sync) {
909  case VSYNC_VSCFR:
910  if (ost->frame_number == 0 && delta - duration >= 0.5) {
911  av_log(NULL, AV_LOG_DEBUG, "Not duplicating %d initial frames\n", (int)lrintf(delta - duration));
912  delta = duration;
913  ost->sync_opts = lrint(sync_ipts);
914  }
915  case VSYNC_CFR:
916  // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
917  if (delta < -1.1)
918  nb_frames = 0;
919  else if (delta > 1.1)
920  nb_frames = lrintf(delta);
921  break;
922  case VSYNC_VFR:
923  if (delta <= -0.6)
924  nb_frames = 0;
925  else if (delta > 0.6)
926  ost->sync_opts = lrint(sync_ipts);
927  break;
928  case VSYNC_DROP:
929  case VSYNC_PASSTHROUGH:
930  ost->sync_opts = lrint(sync_ipts);
931  break;
932  default:
933  av_assert0(0);
934  }
935 
936  nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
937  if (nb_frames == 0) {
938  nb_frames_drop++;
939  av_log(NULL, AV_LOG_VERBOSE,
940  "*** dropping frame %d from stream %d at ts %"PRId64"\n",
941  ost->frame_number, ost->st->index, in_picture->pts);
942  return;
943  } else if (nb_frames > 1) {
944  if (nb_frames > dts_error_threshold * 30) {
945  av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
946  nb_frames_drop++;
947  return;
948  }
949  nb_frames_dup += nb_frames - 1;
950  av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
951  }
952 
953  /* duplicates frame if needed */
954  for (i = 0; i < nb_frames; i++) {
955  av_init_packet(&pkt);
956  pkt.data = NULL;
957  pkt.size = 0;
958 
959  in_picture->pts = ost->sync_opts;
960 
961 #if 1
962  if (!check_recording_time(ost))
963 #else
964  if (ost->frame_number >= ost->max_frames)
965 #endif
966  return;
967 
968  if (s->oformat->flags & AVFMT_RAWPICTURE &&
969  enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
970  /* raw pictures are written as AVPicture structure to
971  avoid any copies. We support temporarily the older
972  method. */
973  mux_enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
974  mux_enc->coded_frame->top_field_first = in_picture->top_field_first;
975  if (mux_enc->coded_frame->interlaced_frame)
977  else
979  pkt.data = (uint8_t *)in_picture;
980  pkt.size = sizeof(AVPicture);
981  pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
982  pkt.flags |= AV_PKT_FLAG_KEY;
983 
984  write_frame(s, &pkt, ost);
985  } else {
986  int got_packet, forced_keyframe = 0;
987  double pts_time;
988 
990  ost->top_field_first >= 0)
991  in_picture->top_field_first = !!ost->top_field_first;
992 
993  if (in_picture->interlaced_frame) {
994  if (enc->codec->id == AV_CODEC_ID_MJPEG)
995  mux_enc->field_order = in_picture->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
996  else
997  mux_enc->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
998  } else
1000 
1001  in_picture->quality = enc->global_quality;
1002  if (!enc->me_threshold)
1003  in_picture->pict_type = 0;
1004 
1005  pts_time = in_picture->pts != AV_NOPTS_VALUE ?
1006  in_picture->pts * av_q2d(enc->time_base) : NAN;
1007  if (ost->forced_kf_index < ost->forced_kf_count &&
1008  in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1009  ost->forced_kf_index++;
1010  forced_keyframe = 1;
1011  } else if (ost->forced_keyframes_pexpr) {
1012  double res;
1013  ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
1016  av_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
1022  res);
1023  if (res) {
1024  forced_keyframe = 1;
1030  }
1031 
1033  }
1034 
1035  if (forced_keyframe) {
1036  in_picture->pict_type = AV_PICTURE_TYPE_I;
1037  av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
1038  }
1039 
1040  update_benchmark(NULL);
1041  if (debug_ts) {
1042  av_log(NULL, AV_LOG_INFO, "encoder <- type:video "
1043  "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
1044  av_ts2str(in_picture->pts), av_ts2timestr(in_picture->pts, &enc->time_base),
1045  enc->time_base.num, enc->time_base.den);
1046  }
1047 
1048  ost->frames_encoded++;
1049 
1050  ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
1051  update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
1052  if (ret < 0) {
1053  av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1054  exit_program(1);
1055  }
1056 
1057  if (got_packet) {
1058  if (debug_ts) {
1059  av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
1060  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
1061  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &enc->time_base),
1062  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &enc->time_base));
1063  }
1064 
1065  if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
1066  pkt.pts = ost->sync_opts;
1067 
1068  av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
1069 
1070  if (debug_ts) {
1071  av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
1072  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
1073  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
1074  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
1075  }
1076 
1077  frame_size = pkt.size;
1078  write_frame(s, &pkt, ost);
1079 
1080  /* if two pass, output log */
1081  if (ost->logfile && enc->stats_out) {
1082  fprintf(ost->logfile, "%s", enc->stats_out);
1083  }
1084  }
1085  }
1086  ost->sync_opts++;
1087  /*
1088  * For video, number of frames in == number of packets out.
1089  * But there may be reordering, so we can't throw away frames on encoder
1090  * flush, we need to limit them here, before they go into encoder.
1091  */
1092  ost->frame_number++;
1093 
1094  if (vstats_filename && frame_size)
1095  do_video_stats(ost, frame_size);
1096  }
1097 }
1098 
1099 static double psnr(double d)
1100 {
1101  return -10.0 * log(d) / log(10.0);
1102 }
1103 
1105 {
1106  AVCodecContext *enc;
1107  int frame_number;
1108  double ti1, bitrate, avg_bitrate;
1109 
1110  /* this is executed just the first time do_video_stats is called */
1111  if (!vstats_file) {
1112  vstats_file = fopen(vstats_filename, "w");
1113  if (!vstats_file) {
1114  perror("fopen");
1115  exit_program(1);
1116  }
1117  }
1118 
1119  enc = ost->enc_ctx;
1120  if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1121  frame_number = ost->st->nb_frames;
1122  fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1123  if (enc->flags&CODEC_FLAG_PSNR)
1124  fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1125 
1126  fprintf(vstats_file,"f_size= %6d ", frame_size);
1127  /* compute pts value */
1128  ti1 = av_stream_get_end_pts(ost->st) * av_q2d(ost->st->time_base);
1129  if (ti1 < 0.01)
1130  ti1 = 0.01;
1131 
1132  bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1133  avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
1134  fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1135  (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
1136  fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1137  }
1138 }
1139 
1141 {
1142  OutputFile *of = output_files[ost->file_index];
1143  int i;
1144 
1146 
1147  if (of->shortest) {
1148  for (i = 0; i < of->ctx->nb_streams; i++)
1149  output_streams[of->ost_index + i]->finished = ENCODER_FINISHED | MUXER_FINISHED;
1150  }
1151 }
1152 
1153 /**
1154  * Get and encode new output from any of the filtergraphs, without causing
1155  * activity.
1156  *
1157  * @return 0 for success, <0 for severe errors
1158  */
1159 static int reap_filters(void)
1160 {
1161  AVFrame *filtered_frame = NULL;
1162  int i;
1163  int64_t frame_pts;
1164 
1165  /* Reap all buffers present in the buffer sinks */
1166  for (i = 0; i < nb_output_streams; i++) {
1167  OutputStream *ost = output_streams[i];
1168  OutputFile *of = output_files[ost->file_index];
1170  AVCodecContext *enc = ost->enc_ctx;
1171  int ret = 0;
1172 
1173  if (!ost->filter)
1174  continue;
1175  filter = ost->filter->filter;
1176 
1177  if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
1178  return AVERROR(ENOMEM);
1179  }
1180  filtered_frame = ost->filtered_frame;
1181 
1182  while (1) {
1183  ret = av_buffersink_get_frame_flags(filter, filtered_frame,
1185  if (ret < 0) {
1186  if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1187  av_log(NULL, AV_LOG_WARNING,
1188  "Error in av_buffersink_get_frame_flags(): %s\n", av_err2str(ret));
1189  }
1190  break;
1191  }
1192  if (ost->finished) {
1193  av_frame_unref(filtered_frame);
1194  continue;
1195  }
1196  frame_pts = AV_NOPTS_VALUE;
1197  if (filtered_frame->pts != AV_NOPTS_VALUE) {
1198  int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1199  filtered_frame->pts = frame_pts =
1200  av_rescale_q(filtered_frame->pts, filter->inputs[0]->time_base, enc->time_base) -
1201  av_rescale_q(start_time, AV_TIME_BASE_Q, enc->time_base);
1202  }
1203  //if (ost->source_index >= 0)
1204  // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1205 
1206  switch (filter->inputs[0]->type) {
1207  case AVMEDIA_TYPE_VIDEO:
1208  filtered_frame->pts = frame_pts;
1209  if (!ost->frame_aspect_ratio.num)
1210  enc->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
1211 
1212  if (debug_ts) {
1213  av_log(NULL, AV_LOG_INFO, "filter -> pts:%s pts_time:%s time_base:%d/%d\n",
1214  av_ts2str(filtered_frame->pts), av_ts2timestr(filtered_frame->pts, &enc->time_base),
1215  enc->time_base.num, enc->time_base.den);
1216  }
1217 
1218  do_video_out(of->ctx, ost, filtered_frame);
1219  break;
1220  case AVMEDIA_TYPE_AUDIO:
1221  filtered_frame->pts = frame_pts;
1222  if (!(enc->codec->capabilities & CODEC_CAP_PARAM_CHANGE) &&
1223  enc->channels != av_frame_get_channels(filtered_frame)) {
1224  av_log(NULL, AV_LOG_ERROR,
1225  "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
1226  break;
1227  }
1228  do_audio_out(of->ctx, ost, filtered_frame);
1229  break;
1230  default:
1231  // TODO support subtitle filters
1232  av_assert0(0);
1233  }
1234 
1235  av_frame_unref(filtered_frame);
1236  }
1237  }
1238 
1239  return 0;
1240 }
1241 
1242 static void print_final_stats(int64_t total_size)
1243 {
1244  uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
1245  uint64_t subtitle_size = 0;
1246  uint64_t data_size = 0;
1247  float percent = -1.0;
1248  int i, j;
1249 
1250  for (i = 0; i < nb_output_streams; i++) {
1251  OutputStream *ost = output_streams[i];
1252  switch (ost->enc_ctx->codec_type) {
1253  case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
1254  case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
1255  case AVMEDIA_TYPE_SUBTITLE: subtitle_size += ost->data_size; break;
1256  default: other_size += ost->data_size; break;
1257  }
1258  extra_size += ost->enc_ctx->extradata_size;
1259  data_size += ost->data_size;
1260  }
1261 
1262  if (data_size && total_size>0 && total_size >= data_size)
1263  percent = 100.0 * (total_size - data_size) / data_size;
1264 
1265  av_log(NULL, AV_LOG_INFO, "\n");
1266  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: ",
1267  video_size / 1024.0,
1268  audio_size / 1024.0,
1269  subtitle_size / 1024.0,
1270  other_size / 1024.0,
1271  extra_size / 1024.0);
1272  if (percent >= 0.0)
1273  av_log(NULL, AV_LOG_INFO, "%f%%", percent);
1274  else
1275  av_log(NULL, AV_LOG_INFO, "unknown");
1276  av_log(NULL, AV_LOG_INFO, "\n");
1277 
1278  /* print verbose per-stream stats */
1279  for (i = 0; i < nb_input_files; i++) {
1280  InputFile *f = input_files[i];
1281  uint64_t total_packets = 0, total_size = 0;
1282 
1283  av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
1284  i, f->ctx->filename);
1285 
1286  for (j = 0; j < f->nb_streams; j++) {
1287  InputStream *ist = input_streams[f->ist_index + j];
1288  enum AVMediaType type = ist->dec_ctx->codec_type;
1289 
1290  total_size += ist->data_size;
1291  total_packets += ist->nb_packets;
1292 
1293  av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
1294  i, j, media_type_string(type));
1295  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
1296  ist->nb_packets, ist->data_size);
1297 
1298  if (ist->decoding_needed) {
1299  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
1300  ist->frames_decoded);
1301  if (type == AVMEDIA_TYPE_AUDIO)
1302  av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
1303  av_log(NULL, AV_LOG_VERBOSE, "; ");
1304  }
1305 
1306  av_log(NULL, AV_LOG_VERBOSE, "\n");
1307  }
1308 
1309  av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
1310  total_packets, total_size);
1311  }
1312 
1313  for (i = 0; i < nb_output_files; i++) {
1314  OutputFile *of = output_files[i];
1315  uint64_t total_packets = 0, total_size = 0;
1316 
1317  av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
1318  i, of->ctx->filename);
1319 
1320  for (j = 0; j < of->ctx->nb_streams; j++) {
1321  OutputStream *ost = output_streams[of->ost_index + j];
1322  enum AVMediaType type = ost->enc_ctx->codec_type;
1323 
1324  total_size += ost->data_size;
1325  total_packets += ost->packets_written;
1326 
1327  av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
1328  i, j, media_type_string(type));
1329  if (ost->encoding_needed) {
1330  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
1331  ost->frames_encoded);
1332  if (type == AVMEDIA_TYPE_AUDIO)
1333  av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
1334  av_log(NULL, AV_LOG_VERBOSE, "; ");
1335  }
1336 
1337  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
1338  ost->packets_written, ost->data_size);
1339 
1340  av_log(NULL, AV_LOG_VERBOSE, "\n");
1341  }
1342 
1343  av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
1344  total_packets, total_size);
1345  }
1346  if(video_size + data_size + audio_size + subtitle_size + extra_size == 0){
1347  av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
1348  }
1349 }
1350 
1351 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1352 {
1353  char buf[1024];
1354  AVBPrint buf_script;
1355  OutputStream *ost;
1356  AVFormatContext *oc;
1357  int64_t total_size;
1358  AVCodecContext *enc;
1359  int frame_number, vid, i;
1360  double bitrate;
1361  int64_t pts = INT64_MIN;
1362  static int64_t last_time = -1;
1363  static int qp_histogram[52];
1364  int hours, mins, secs, us;
1365 
1366  if (!print_stats && !is_last_report && !progress_avio)
1367  return;
1368 
1369  if (!is_last_report) {
1370  if (last_time == -1) {
1371  last_time = cur_time;
1372  return;
1373  }
1374  if ((cur_time - last_time) < 500000)
1375  return;
1376  last_time = cur_time;
1377  }
1378 
1379 
1380  oc = output_files[0]->ctx;
1381 
1382  total_size = avio_size(oc->pb);
1383  if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
1384  total_size = avio_tell(oc->pb);
1385 
1386  buf[0] = '\0';
1387  vid = 0;
1388  av_bprint_init(&buf_script, 0, 1);
1389  for (i = 0; i < nb_output_streams; i++) {
1390  float q = -1;
1391  ost = output_streams[i];
1392  enc = ost->enc_ctx;
1393  if (!ost->stream_copy && enc->coded_frame)
1394  q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1395  if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1396  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1397  av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1398  ost->file_index, ost->index, q);
1399  }
1400  if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1401  float fps, t = (cur_time-timer_start) / 1000000.0;
1402 
1403  frame_number = ost->frame_number;
1404  fps = t > 1 ? frame_number / t : 0;
1405  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
1406  frame_number, fps < 9.95, fps, q);
1407  av_bprintf(&buf_script, "frame=%d\n", frame_number);
1408  av_bprintf(&buf_script, "fps=%.1f\n", fps);
1409  av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1410  ost->file_index, ost->index, q);
1411  if (is_last_report)
1412  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1413  if (qp_hist) {
1414  int j;
1415  int qp = lrintf(q);
1416  if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1417  qp_histogram[qp]++;
1418  for (j = 0; j < 32; j++)
1419  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
1420  }
1421  if ((enc->flags&CODEC_FLAG_PSNR) && (enc->coded_frame || is_last_report)) {
1422  int j;
1423  double error, error_sum = 0;
1424  double scale, scale_sum = 0;
1425  double p;
1426  char type[3] = { 'Y','U','V' };
1427  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1428  for (j = 0; j < 3; j++) {
1429  if (is_last_report) {
1430  error = enc->error[j];
1431  scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1432  } else {
1433  error = enc->coded_frame->error[j];
1434  scale = enc->width * enc->height * 255.0 * 255.0;
1435  }
1436  if (j)
1437  scale /= 4;
1438  error_sum += error;
1439  scale_sum += scale;
1440  p = psnr(error / scale);
1441  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
1442  av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1443  ost->file_index, ost->index, type[j] | 32, p);
1444  }
1445  p = psnr(error_sum / scale_sum);
1446  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1447  av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1448  ost->file_index, ost->index, p);
1449  }
1450  vid = 1;
1451  }
1452  /* compute min output value */
1454  pts = FFMAX(pts, av_rescale_q(av_stream_get_end_pts(ost->st),
1455  ost->st->time_base, AV_TIME_BASE_Q));
1456  }
1457 
1458  secs = pts / AV_TIME_BASE;
1459  us = pts % AV_TIME_BASE;
1460  mins = secs / 60;
1461  secs %= 60;
1462  hours = mins / 60;
1463  mins %= 60;
1464 
1465  bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
1466 
1467  if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1468  "size=N/A time=");
1469  else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1470  "size=%8.0fkB time=", total_size / 1024.0);
1471  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1472  "%02d:%02d:%02d.%02d ", hours, mins, secs,
1473  (100 * us) / AV_TIME_BASE);
1474  if (bitrate < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1475  "bitrate=N/A");
1476  else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1477  "bitrate=%6.1fkbits/s", bitrate);
1478  if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
1479  else av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1480  av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1481  av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
1482  hours, mins, secs, us);
1483 
1485  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1487  av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1488  av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1489 
1490  if (print_stats || is_last_report) {
1491  if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
1492  fprintf(stderr, "%s \r", buf);
1493  } else
1494  av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1495 
1496  fflush(stderr);
1497  }
1498 
1499  if (progress_avio) {
1500  av_bprintf(&buf_script, "progress=%s\n",
1501  is_last_report ? "end" : "continue");
1502  avio_write(progress_avio, buf_script.str,
1503  FFMIN(buf_script.len, buf_script.size - 1));
1504  avio_flush(progress_avio);
1505  av_bprint_finalize(&buf_script, NULL);
1506  if (is_last_report) {
1507  avio_close(progress_avio);
1508  progress_avio = NULL;
1509  }
1510  }
1511 
1512  if (is_last_report)
1513  print_final_stats(total_size);
1514 }
1515 
1516 static void flush_encoders(void)
1517 {
1518  int i, ret;
1519 
1520  for (i = 0; i < nb_output_streams; i++) {
1521  OutputStream *ost = output_streams[i];
1522  AVCodecContext *enc = ost->enc_ctx;
1523  AVFormatContext *os = output_files[ost->file_index]->ctx;
1524  int stop_encoding = 0;
1525 
1526  if (!ost->encoding_needed)
1527  continue;
1528 
1529  if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1530  continue;
1532  continue;
1533 
1534  for (;;) {
1535  int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1536  const char *desc;
1537 
1538  switch (enc->codec_type) {
1539  case AVMEDIA_TYPE_AUDIO:
1540  encode = avcodec_encode_audio2;
1541  desc = "Audio";
1542  break;
1543  case AVMEDIA_TYPE_VIDEO:
1544  encode = avcodec_encode_video2;
1545  desc = "Video";
1546  break;
1547  default:
1548  stop_encoding = 1;
1549  }
1550 
1551  if (encode) {
1552  AVPacket pkt;
1553  int pkt_size;
1554  int got_packet;
1555  av_init_packet(&pkt);
1556  pkt.data = NULL;
1557  pkt.size = 0;
1558 
1559  update_benchmark(NULL);
1560  ret = encode(enc, &pkt, NULL, &got_packet);
1561  update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
1562  if (ret < 0) {
1563  av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1564  exit_program(1);
1565  }
1566  if (ost->logfile && enc->stats_out) {
1567  fprintf(ost->logfile, "%s", enc->stats_out);
1568  }
1569  if (!got_packet) {
1570  stop_encoding = 1;
1571  break;
1572  }
1573  if (ost->finished & MUXER_FINISHED) {
1574  av_free_packet(&pkt);
1575  continue;
1576  }
1577  av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
1578  pkt_size = pkt.size;
1579  write_frame(os, &pkt, ost);
1581  do_video_stats(ost, pkt_size);
1582  }
1583  }
1584 
1585  if (stop_encoding)
1586  break;
1587  }
1588  }
1589 }
1590 
1591 /*
1592  * Check whether a packet from ist should be written into ost at this time
1593  */
1595 {
1596  OutputFile *of = output_files[ost->file_index];
1597  int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1598 
1599  if (ost->source_index != ist_index)
1600  return 0;
1601 
1602  if (ost->finished)
1603  return 0;
1604 
1605  if (of->start_time != AV_NOPTS_VALUE && ist->pts < of->start_time)
1606  return 0;
1607 
1608  return 1;
1609 }
1610 
1611 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1612 {
1613  OutputFile *of = output_files[ost->file_index];
1614  InputFile *f = input_files [ist->file_index];
1615  int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1616  int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1617  int64_t ist_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ist->st->time_base);
1618  AVPicture pict;
1619  AVPacket opkt;
1620 
1621  av_init_packet(&opkt);
1622 
1623  if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1625  return;
1626 
1627  if (pkt->pts == AV_NOPTS_VALUE) {
1628  if (!ost->frame_number && ist->pts < start_time &&
1629  !ost->copy_prior_start)
1630  return;
1631  } else {
1632  if (!ost->frame_number && pkt->pts < ist_tb_start_time &&
1633  !ost->copy_prior_start)
1634  return;
1635  }
1636 
1637  if (of->recording_time != INT64_MAX &&
1638  ist->pts >= of->recording_time + start_time) {
1639  close_output_stream(ost);
1640  return;
1641  }
1642 
1643  if (f->recording_time != INT64_MAX) {
1644  start_time = f->ctx->start_time;
1645  if (f->start_time != AV_NOPTS_VALUE)
1646  start_time += f->start_time;
1647  if (ist->pts >= f->recording_time + start_time) {
1648  close_output_stream(ost);
1649  return;
1650  }
1651  }
1652 
1653  /* force the input stream PTS */
1654  if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
1655  ost->sync_opts++;
1656 
1657  if (pkt->pts != AV_NOPTS_VALUE)
1658  opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1659  else
1660  opkt.pts = AV_NOPTS_VALUE;
1661 
1662  if (pkt->dts == AV_NOPTS_VALUE)
1663  opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
1664  else
1665  opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1666  opkt.dts -= ost_tb_start_time;
1667 
1668  if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
1670  if(!duration)
1671  duration = ist->dec_ctx->frame_size;
1672  opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
1674  ost->st->time_base) - ost_tb_start_time;
1675  }
1676 
1677  opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1678  opkt.flags = pkt->flags;
1679 
1680  // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1681  if ( ost->enc_ctx->codec_id != AV_CODEC_ID_H264
1682  && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG1VIDEO
1683  && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG2VIDEO
1684  && ost->enc_ctx->codec_id != AV_CODEC_ID_VC1
1685  ) {
1686  if (av_parser_change(ost->parser, ost->st->codec,
1687  &opkt.data, &opkt.size,
1688  pkt->data, pkt->size,
1689  pkt->flags & AV_PKT_FLAG_KEY)) {
1690  opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1691  if (!opkt.buf)
1692  exit_program(1);
1693  }
1694  } else {
1695  opkt.data = pkt->data;
1696  opkt.size = pkt->size;
1697  }
1698  av_copy_packet_side_data(&opkt, pkt);
1699 
1700  if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
1701  /* store AVPicture in AVPacket, as expected by the output format */
1702  avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1703  opkt.data = (uint8_t *)&pict;
1704  opkt.size = sizeof(AVPicture);
1705  opkt.flags |= AV_PKT_FLAG_KEY;
1706  }
1707 
1708  write_frame(of->ctx, &opkt, ost);
1709 }
1710 
1712 {
1713  AVCodecContext *dec = ist->dec_ctx;
1714 
1715  if (!dec->channel_layout) {
1716  char layout_name[256];
1717 
1718  if (dec->channels > ist->guess_layout_max)
1719  return 0;
1721  if (!dec->channel_layout)
1722  return 0;
1723  av_get_channel_layout_string(layout_name, sizeof(layout_name),
1724  dec->channels, dec->channel_layout);
1725  av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1726  "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1727  }
1728  return 1;
1729 }
1730 
1731 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1732 {
1733  AVFrame *decoded_frame, *f;
1734  AVCodecContext *avctx = ist->dec_ctx;
1735  int i, ret, err = 0, resample_changed;
1736  AVRational decoded_frame_tb;
1737 
1738  if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1739  return AVERROR(ENOMEM);
1740  if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1741  return AVERROR(ENOMEM);
1742  decoded_frame = ist->decoded_frame;
1743 
1744  update_benchmark(NULL);
1745  ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1746  update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
1747 
1748  if (ret >= 0 && avctx->sample_rate <= 0) {
1749  av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
1750  ret = AVERROR_INVALIDDATA;
1751  }
1752 
1753  if (*got_output || ret<0 || pkt->size)
1754  decode_error_stat[ret<0] ++;
1755 
1756  if (!*got_output || ret < 0) {
1757  if (!pkt->size) {
1758  for (i = 0; i < ist->nb_filters; i++)
1759 #if 1
1760  av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1761 #else
1762  av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1763 #endif
1764  }
1765  return ret;
1766  }
1767 
1768  ist->samples_decoded += decoded_frame->nb_samples;
1769  ist->frames_decoded++;
1770 
1771 #if 1
1772  /* increment next_dts to use for the case where the input stream does not
1773  have timestamps or there are multiple frames in the packet */
1774  ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1775  avctx->sample_rate;
1776  ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1777  avctx->sample_rate;
1778 #endif
1779 
1780  resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1781  ist->resample_channels != avctx->channels ||
1782  ist->resample_channel_layout != decoded_frame->channel_layout ||
1783  ist->resample_sample_rate != decoded_frame->sample_rate;
1784  if (resample_changed) {
1785  char layout1[64], layout2[64];
1786 
1787  if (!guess_input_channel_layout(ist)) {
1788  av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1789  "layout for Input Stream #%d.%d\n", ist->file_index,
1790  ist->st->index);
1791  exit_program(1);
1792  }
1793  decoded_frame->channel_layout = avctx->channel_layout;
1794 
1795  av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1797  av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1798  decoded_frame->channel_layout);
1799 
1800  av_log(NULL, AV_LOG_INFO,
1801  "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",
1802  ist->file_index, ist->st->index,
1804  ist->resample_channels, layout1,
1805  decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1806  avctx->channels, layout2);
1807 
1808  ist->resample_sample_fmt = decoded_frame->format;
1809  ist->resample_sample_rate = decoded_frame->sample_rate;
1810  ist->resample_channel_layout = decoded_frame->channel_layout;
1811  ist->resample_channels = avctx->channels;
1812 
1813  for (i = 0; i < nb_filtergraphs; i++)
1814  if (ist_in_filtergraph(filtergraphs[i], ist)) {
1815  FilterGraph *fg = filtergraphs[i];
1816  int j;
1817  if (configure_filtergraph(fg) < 0) {
1818  av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1819  exit_program(1);
1820  }
1821  for (j = 0; j < fg->nb_outputs; j++) {
1822  OutputStream *ost = fg->outputs[j]->ost;
1823  if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1826  ost->enc_ctx->frame_size);
1827  }
1828  }
1829  }
1830 
1831  /* if the decoder provides a pts, use it instead of the last packet pts.
1832  the decoder could be delaying output by a packet or more. */
1833  if (decoded_frame->pts != AV_NOPTS_VALUE) {
1834  ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
1835  decoded_frame_tb = avctx->time_base;
1836  } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
1837  decoded_frame->pts = decoded_frame->pkt_pts;
1838  decoded_frame_tb = ist->st->time_base;
1839  } else if (pkt->pts != AV_NOPTS_VALUE) {
1840  decoded_frame->pts = pkt->pts;
1841  decoded_frame_tb = ist->st->time_base;
1842  }else {
1843  decoded_frame->pts = ist->dts;
1844  decoded_frame_tb = AV_TIME_BASE_Q;
1845  }
1846  pkt->pts = AV_NOPTS_VALUE;
1847  if (decoded_frame->pts != AV_NOPTS_VALUE)
1848  decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
1849  (AVRational){1, avctx->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
1850  (AVRational){1, avctx->sample_rate});
1851  for (i = 0; i < ist->nb_filters; i++) {
1852  if (i < ist->nb_filters - 1) {
1853  f = ist->filter_frame;
1854  err = av_frame_ref(f, decoded_frame);
1855  if (err < 0)
1856  break;
1857  } else
1858  f = decoded_frame;
1859  err = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f,
1861  if (err == AVERROR_EOF)
1862  err = 0; /* ignore */
1863  if (err < 0)
1864  break;
1865  }
1866  decoded_frame->pts = AV_NOPTS_VALUE;
1867 
1868  av_frame_unref(ist->filter_frame);
1869  av_frame_unref(decoded_frame);
1870  return err < 0 ? err : ret;
1871 }
1872 
1873 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1874 {
1875  AVFrame *decoded_frame, *f;
1876  int i, ret = 0, err = 0, resample_changed;
1877  int64_t best_effort_timestamp;
1878  AVRational *frame_sample_aspect;
1879 
1880  if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1881  return AVERROR(ENOMEM);
1882  if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1883  return AVERROR(ENOMEM);
1884  decoded_frame = ist->decoded_frame;
1885  pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
1886 
1887  update_benchmark(NULL);
1888  ret = avcodec_decode_video2(ist->dec_ctx,
1889  decoded_frame, got_output, pkt);
1890  update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
1891 
1892  // The following line may be required in some cases where there is no parser
1893  // or the parser does not has_b_frames correctly
1894  if (ist->st->codec->has_b_frames < ist->dec_ctx->has_b_frames) {
1895  if (ist->dec_ctx->codec_id == AV_CODEC_ID_H264) {
1896  ist->st->codec->has_b_frames = ist->dec_ctx->has_b_frames;
1897  } else
1899  ist->dec_ctx,
1900  "has_b_frames is larger in decoder than demuxer %d > %d ",
1901  ist->dec_ctx->has_b_frames,
1902  ist->st->codec->has_b_frames
1903  );
1904  }
1905 
1906  if (*got_output || ret<0 || pkt->size)
1907  decode_error_stat[ret<0] ++;
1908 
1909  if (!*got_output || ret < 0) {
1910  if (!pkt->size) {
1911  for (i = 0; i < ist->nb_filters; i++)
1912 #if 1
1913  av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1914 #else
1915  av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1916 #endif
1917  }
1918  return ret;
1919  }
1920 
1921  if(ist->top_field_first>=0)
1922  decoded_frame->top_field_first = ist->top_field_first;
1923 
1924  ist->frames_decoded++;
1925 
1926  if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
1927  err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
1928  if (err < 0)
1929  goto fail;
1930  }
1931  ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
1932 
1933  best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
1934  if(best_effort_timestamp != AV_NOPTS_VALUE)
1935  ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
1936 
1937  if (debug_ts) {
1938  av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
1939  "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",
1940  ist->st->index, av_ts2str(decoded_frame->pts),
1941  av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
1942  best_effort_timestamp,
1943  av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
1944  decoded_frame->key_frame, decoded_frame->pict_type,
1945  ist->st->time_base.num, ist->st->time_base.den);
1946  }
1947 
1948  pkt->size = 0;
1949 
1950  if (ist->st->sample_aspect_ratio.num)
1951  decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1952 
1953  resample_changed = ist->resample_width != decoded_frame->width ||
1954  ist->resample_height != decoded_frame->height ||
1955  ist->resample_pix_fmt != decoded_frame->format;
1956  if (resample_changed) {
1957  av_log(NULL, AV_LOG_INFO,
1958  "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1959  ist->file_index, ist->st->index,
1961  decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1962 
1963  ist->resample_width = decoded_frame->width;
1964  ist->resample_height = decoded_frame->height;
1965  ist->resample_pix_fmt = decoded_frame->format;
1966 
1967  for (i = 0; i < nb_filtergraphs; i++) {
1968  if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters &&
1969  configure_filtergraph(filtergraphs[i]) < 0) {
1970  av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1971  exit_program(1);
1972  }
1973  }
1974  }
1975 
1976  frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
1977  for (i = 0; i < ist->nb_filters; i++) {
1978  if (!frame_sample_aspect->num)
1979  *frame_sample_aspect = ist->st->sample_aspect_ratio;
1980 
1981  if (i < ist->nb_filters - 1) {
1982  f = ist->filter_frame;
1983  err = av_frame_ref(f, decoded_frame);
1984  if (err < 0)
1985  break;
1986  } else
1987  f = decoded_frame;
1989  if (ret == AVERROR_EOF) {
1990  ret = 0; /* ignore */
1991  } else if (ret < 0) {
1992  av_log(NULL, AV_LOG_FATAL,
1993  "Failed to inject frame into filter network: %s\n", av_err2str(ret));
1994  exit_program(1);
1995  }
1996  }
1997 
1998 fail:
2000  av_frame_unref(decoded_frame);
2001  return err < 0 ? err : ret;
2002 }
2003 
2004 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
2005 {
2006  AVSubtitle subtitle;
2007  int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
2008  &subtitle, got_output, pkt);
2009 
2010  if (*got_output || ret<0 || pkt->size)
2011  decode_error_stat[ret<0] ++;
2012 
2013  if (ret < 0 || !*got_output) {
2014  if (!pkt->size)
2015  sub2video_flush(ist);
2016  return ret;
2017  }
2018 
2019  if (ist->fix_sub_duration) {
2020  int end = 1;
2021  if (ist->prev_sub.got_output) {
2022  end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
2023  1000, AV_TIME_BASE);
2024  if (end < ist->prev_sub.subtitle.end_display_time) {
2025  av_log(ist->dec_ctx, AV_LOG_DEBUG,
2026  "Subtitle duration reduced from %d to %d%s\n",
2028  end <= 0 ? ", dropping it" : "");
2030  }
2031  }
2032  FFSWAP(int, *got_output, ist->prev_sub.got_output);
2033  FFSWAP(int, ret, ist->prev_sub.ret);
2034  FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
2035  if (end <= 0)
2036  goto out;
2037  }
2038 
2039  if (!*got_output)
2040  return ret;
2041 
2042  sub2video_update(ist, &subtitle);
2043 
2044  if (!subtitle.num_rects)
2045  goto out;
2046 
2047  ist->frames_decoded++;
2048 
2049  for (i = 0; i < nb_output_streams; i++) {
2050  OutputStream *ost = output_streams[i];
2051 
2052  if (!check_output_constraints(ist, ost) || !ost->encoding_needed
2053  || ost->enc->type != AVMEDIA_TYPE_SUBTITLE)
2054  continue;
2055 
2056  do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
2057  }
2058 
2059 out:
2060  avsubtitle_free(&subtitle);
2061  return ret;
2062 }
2063 
2064 /* pkt = NULL means EOF (needed to flush decoder buffers) */
2066 {
2067  int ret = 0, i;
2068  int got_output = 0;
2069 
2070  AVPacket avpkt;
2071  if (!ist->saw_first_ts) {
2072  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;
2073  ist->pts = 0;
2074  if (pkt && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
2075  ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
2076  ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
2077  }
2078  ist->saw_first_ts = 1;
2079  }
2080 
2081  if (ist->next_dts == AV_NOPTS_VALUE)
2082  ist->next_dts = ist->dts;
2083  if (ist->next_pts == AV_NOPTS_VALUE)
2084  ist->next_pts = ist->pts;
2085 
2086  if (!pkt) {
2087  /* EOF handling */
2088  av_init_packet(&avpkt);
2089  avpkt.data = NULL;
2090  avpkt.size = 0;
2091  goto handle_eof;
2092  } else {
2093  avpkt = *pkt;
2094  }
2095 
2096  if (pkt->dts != AV_NOPTS_VALUE) {
2097  ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
2098  if (ist->dec_ctx->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
2099  ist->next_pts = ist->pts = ist->dts;
2100  }
2101 
2102  // while we have more to decode or while the decoder did output something on EOF
2103  while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
2104  int duration;
2105  handle_eof:
2106 
2107  ist->pts = ist->next_pts;
2108  ist->dts = ist->next_dts;
2109 
2110  if (avpkt.size && avpkt.size != pkt->size &&
2111  !(ist->dec->capabilities & CODEC_CAP_SUBFRAMES)) {
2113  "Multiple frames in a packet from stream %d\n", pkt->stream_index);
2114  ist->showed_multi_packet_warning = 1;
2115  }
2116 
2117  switch (ist->dec_ctx->codec_type) {
2118  case AVMEDIA_TYPE_AUDIO:
2119  ret = decode_audio (ist, &avpkt, &got_output);
2120  break;
2121  case AVMEDIA_TYPE_VIDEO:
2122  ret = decode_video (ist, &avpkt, &got_output);
2123  if (avpkt.duration) {
2124  duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
2125  } else if(ist->dec_ctx->time_base.num != 0 && ist->dec_ctx->time_base.den != 0) {
2127  duration = ((int64_t)AV_TIME_BASE *
2128  ist->dec_ctx->time_base.num * ticks) /
2129  ist->dec_ctx->time_base.den;
2130  } else
2131  duration = 0;
2132 
2133  if(ist->dts != AV_NOPTS_VALUE && duration) {
2134  ist->next_dts += duration;
2135  }else
2136  ist->next_dts = AV_NOPTS_VALUE;
2137 
2138  if (got_output)
2139  ist->next_pts += duration; //FIXME the duration is not correct in some cases
2140  break;
2141  case AVMEDIA_TYPE_SUBTITLE:
2142  ret = transcode_subtitles(ist, &avpkt, &got_output);
2143  break;
2144  default:
2145  return -1;
2146  }
2147 
2148  if (ret < 0)
2149  return ret;
2150 
2151  avpkt.dts=
2152  avpkt.pts= AV_NOPTS_VALUE;
2153 
2154  // touch data and size only if not EOF
2155  if (pkt) {
2157  ret = avpkt.size;
2158  avpkt.data += ret;
2159  avpkt.size -= ret;
2160  }
2161  if (!got_output) {
2162  continue;
2163  }
2164  if (got_output && !pkt)
2165  break;
2166  }
2167 
2168  /* handle stream copy */
2169  if (!ist->decoding_needed) {
2170  ist->dts = ist->next_dts;
2171  switch (ist->dec_ctx->codec_type) {
2172  case AVMEDIA_TYPE_AUDIO:
2173  ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
2174  ist->dec_ctx->sample_rate;
2175  break;
2176  case AVMEDIA_TYPE_VIDEO:
2177  if (ist->framerate.num) {
2178  // TODO: Remove work-around for c99-to-c89 issue 7
2179  AVRational time_base_q = AV_TIME_BASE_Q;
2180  int64_t next_dts = av_rescale_q(ist->next_dts, time_base_q, av_inv_q(ist->framerate));
2181  ist->next_dts = av_rescale_q(next_dts + 1, av_inv_q(ist->framerate), time_base_q);
2182  } else if (pkt->duration) {
2183  ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
2184  } else if(ist->dec_ctx->time_base.num != 0) {
2185  int ticks= av_stream_get_parser(ist->st) ? av_stream_get_parser(ist->st)->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
2186  ist->next_dts += ((int64_t)AV_TIME_BASE *
2187  ist->dec_ctx->time_base.num * ticks) /
2188  ist->dec_ctx->time_base.den;
2189  }
2190  break;
2191  }
2192  ist->pts = ist->dts;
2193  ist->next_pts = ist->next_dts;
2194  }
2195  for (i = 0; pkt && i < nb_output_streams; i++) {
2196  OutputStream *ost = output_streams[i];
2197 
2198  if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2199  continue;
2200 
2201  do_streamcopy(ist, ost, pkt);
2202  }
2203 
2204  return got_output;
2205 }
2206 
2207 static void print_sdp(void)
2208 {
2209  char sdp[16384];
2210  int i;
2211  AVFormatContext **avc = av_malloc_array(nb_output_files, sizeof(*avc));
2212 
2213  if (!avc)
2214  exit_program(1);
2215  for (i = 0; i < nb_output_files; i++)
2216  avc[i] = output_files[i]->ctx;
2217 
2218  av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
2219  printf("SDP:\n%s\n", sdp);
2220  fflush(stdout);
2221  av_freep(&avc);
2222 }
2223 
2225 {
2226  int i;
2227  for (i = 0; hwaccels[i].name; i++)
2228  if (hwaccels[i].pix_fmt == pix_fmt)
2229  return &hwaccels[i];
2230  return NULL;
2231 }
2232 
2233 static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
2234 {
2235  InputStream *ist = s->opaque;
2236  const enum AVPixelFormat *p;
2237  int ret;
2238 
2239  for (p = pix_fmts; *p != -1; p++) {
2240  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
2241  const HWAccel *hwaccel;
2242 
2243  if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
2244  break;
2245 
2246  hwaccel = get_hwaccel(*p);
2247  if (!hwaccel ||
2248  (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
2249  (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
2250  continue;
2251 
2252  ret = hwaccel->init(s);
2253  if (ret < 0) {
2254  if (ist->hwaccel_id == hwaccel->id) {
2255  av_log(NULL, AV_LOG_FATAL,
2256  "%s hwaccel requested for input stream #%d:%d, "
2257  "but cannot be initialized.\n", hwaccel->name,
2258  ist->file_index, ist->st->index);
2259  exit_program(1);
2260  }
2261  continue;
2262  }
2263  ist->active_hwaccel_id = hwaccel->id;
2264  ist->hwaccel_pix_fmt = *p;
2265  break;
2266  }
2267 
2268  return *p;
2269 }
2270 
2272 {
2273  InputStream *ist = s->opaque;
2274 
2275  if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
2276  return ist->hwaccel_get_buffer(s, frame, flags);
2277 
2278  return avcodec_default_get_buffer2(s, frame, flags);
2279 }
2280 
2281 static int init_input_stream(int ist_index, char *error, int error_len)
2282 {
2283  int ret;
2284  InputStream *ist = input_streams[ist_index];
2285 
2286  if (ist->decoding_needed) {
2287  AVCodec *codec = ist->dec;
2288  if (!codec) {
2289  snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
2290  avcodec_get_name(ist->dec_ctx->codec_id), ist->file_index, ist->st->index);
2291  return AVERROR(EINVAL);
2292  }
2293 
2294  ist->dec_ctx->opaque = ist;
2295  ist->dec_ctx->get_format = get_format;
2296  ist->dec_ctx->get_buffer2 = get_buffer;
2297  ist->dec_ctx->thread_safe_callbacks = 1;
2298 
2299  av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
2301  av_dict_set(&ist->decoder_opts, "compute_edt", "1", 0);
2302 
2303  if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
2304  av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
2305  if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
2306  if (ret == AVERROR_EXPERIMENTAL)
2307  abort_codec_experimental(codec, 0);
2308 
2309  snprintf(error, error_len,
2310  "Error while opening decoder for input stream "
2311  "#%d:%d : %s",
2312  ist->file_index, ist->st->index, av_err2str(ret));
2313  return ret;
2314  }
2316  }
2317 
2318  ist->next_pts = AV_NOPTS_VALUE;
2319  ist->next_dts = AV_NOPTS_VALUE;
2320 
2321  return 0;
2322 }
2323 
2325 {
2326  if (ost->source_index >= 0)
2327  return input_streams[ost->source_index];
2328  return NULL;
2329 }
2330 
2331 static int compare_int64(const void *a, const void *b)
2332 {
2333  int64_t va = *(int64_t *)a, vb = *(int64_t *)b;
2334  return va < vb ? -1 : va > vb ? +1 : 0;
2335 }
2336 
2337 static void parse_forced_key_frames(char *kf, OutputStream *ost,
2338  AVCodecContext *avctx)
2339 {
2340  char *p;
2341  int n = 1, i, size, index = 0;
2342  int64_t t, *pts;
2343 
2344  for (p = kf; *p; p++)
2345  if (*p == ',')
2346  n++;
2347  size = n;
2348  pts = av_malloc_array(size, sizeof(*pts));
2349  if (!pts) {
2350  av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2351  exit_program(1);
2352  }
2353 
2354  p = kf;
2355  for (i = 0; i < n; i++) {
2356  char *next = strchr(p, ',');
2357 
2358  if (next)
2359  *next++ = 0;
2360 
2361  if (!memcmp(p, "chapters", 8)) {
2362 
2363  AVFormatContext *avf = output_files[ost->file_index]->ctx;
2364  int j;
2365 
2366  if (avf->nb_chapters > INT_MAX - size ||
2367  !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
2368  sizeof(*pts)))) {
2369  av_log(NULL, AV_LOG_FATAL,
2370  "Could not allocate forced key frames array.\n");
2371  exit_program(1);
2372  }
2373  t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
2374  t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2375 
2376  for (j = 0; j < avf->nb_chapters; j++) {
2377  AVChapter *c = avf->chapters[j];
2378  av_assert1(index < size);
2379  pts[index++] = av_rescale_q(c->start, c->time_base,
2380  avctx->time_base) + t;
2381  }
2382 
2383  } else {
2384 
2385  t = parse_time_or_die("force_key_frames", p, 1);
2386  av_assert1(index < size);
2387  pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2388 
2389  }
2390 
2391  p = next;
2392  }
2393 
2394  av_assert0(index == size);
2395  qsort(pts, size, sizeof(*pts), compare_int64);
2396  ost->forced_kf_count = size;
2397  ost->forced_kf_pts = pts;
2398 }
2399 
2400 static void report_new_stream(int input_index, AVPacket *pkt)
2401 {
2402  InputFile *file = input_files[input_index];
2403  AVStream *st = file->ctx->streams[pkt->stream_index];
2404 
2405  if (pkt->stream_index < file->nb_streams_warn)
2406  return;
2407  av_log(file->ctx, AV_LOG_WARNING,
2408  "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
2410  input_index, pkt->stream_index,
2411  pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
2412  file->nb_streams_warn = pkt->stream_index + 1;
2413 }
2414 
2416 {
2417  AVDictionaryEntry *e;
2418 
2419  uint8_t *encoder_string;
2420  int encoder_string_len;
2421  int format_flags = 0;
2422  int codec_flags = 0;
2423 
2424  if (av_dict_get(ost->st->metadata, "encoder", NULL, 0))
2425  return;
2426 
2427  e = av_dict_get(of->opts, "fflags", NULL, 0);
2428  if (e) {
2429  const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
2430  if (!o)
2431  return;
2432  av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
2433  }
2434  e = av_dict_get(ost->encoder_opts, "flags", NULL, 0);
2435  if (e) {
2436  const AVOption *o = av_opt_find(ost->enc_ctx, "flags", NULL, 0, 0);
2437  if (!o)
2438  return;
2439  av_opt_eval_flags(ost->enc_ctx, o, e->value, &codec_flags);
2440  }
2441 
2442  encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
2443  encoder_string = av_mallocz(encoder_string_len);
2444  if (!encoder_string)
2445  exit_program(1);
2446 
2447  if (!(format_flags & AVFMT_FLAG_BITEXACT) && !(codec_flags & CODEC_FLAG_BITEXACT))
2448  av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
2449  else
2450  av_strlcpy(encoder_string, "Lavc ", encoder_string_len);
2451  av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
2452  av_dict_set(&ost->st->metadata, "encoder", encoder_string,
2454 }
2455 
2456 static int transcode_init(void)
2457 {
2458  int ret = 0, i, j, k;
2459  AVFormatContext *oc;
2460  OutputStream *ost;
2461  InputStream *ist;
2462  char error[1024];
2463  int want_sdp = 1;
2464 
2465  for (i = 0; i < nb_filtergraphs; i++) {
2466  FilterGraph *fg = filtergraphs[i];
2467  for (j = 0; j < fg->nb_outputs; j++) {
2468  OutputFilter *ofilter = fg->outputs[j];
2469  if (!ofilter->ost || ofilter->ost->source_index >= 0)
2470  continue;
2471  if (fg->nb_inputs != 1)
2472  continue;
2473  for (k = nb_input_streams-1; k >= 0 ; k--)
2474  if (fg->inputs[0]->ist == input_streams[k])
2475  break;
2476  ofilter->ost->source_index = k;
2477  }
2478  }
2479 
2480  /* init framerate emulation */
2481  for (i = 0; i < nb_input_files; i++) {
2482  InputFile *ifile = input_files[i];
2483  if (ifile->rate_emu)
2484  for (j = 0; j < ifile->nb_streams; j++)
2485  input_streams[j + ifile->ist_index]->start = av_gettime_relative();
2486  }
2487 
2488  /* output stream init */
2489  for (i = 0; i < nb_output_files; i++) {
2490  oc = output_files[i]->ctx;
2491  if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2492  av_dump_format(oc, i, oc->filename, 1);
2493  av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2494  return AVERROR(EINVAL);
2495  }
2496  }
2497 
2498  /* init complex filtergraphs */
2499  for (i = 0; i < nb_filtergraphs; i++)
2500  if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2501  return ret;
2502 
2503  /* for each output stream, we compute the right encoding parameters */
2504  for (i = 0; i < nb_output_streams; i++) {
2505  AVCodecContext *enc_ctx;
2506  AVCodecContext *dec_ctx = NULL;
2507  ost = output_streams[i];
2508  oc = output_files[ost->file_index]->ctx;
2509  ist = get_input_stream(ost);
2510 
2511  if (ost->attachment_filename)
2512  continue;
2513 
2514  enc_ctx = ost->enc_ctx;
2515 
2516  if (ist) {
2517  dec_ctx = ist->dec_ctx;
2518 
2519  ost->st->disposition = ist->st->disposition;
2520  enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
2521  enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
2522  } else {
2523  for (j=0; j<oc->nb_streams; j++) {
2524  AVStream *st = oc->streams[j];
2525  if (st != ost->st && st->codec->codec_type == enc_ctx->codec_type)
2526  break;
2527  }
2528  if (j == oc->nb_streams)
2529  if (enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO || enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
2531  }
2532 
2533  if (ost->stream_copy) {
2534  AVRational sar;
2535  uint64_t extra_size;
2536 
2537  av_assert0(ist && !ost->filter);
2538 
2539  extra_size = (uint64_t)dec_ctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2540 
2541  if (extra_size > INT_MAX) {
2542  return AVERROR(EINVAL);
2543  }
2544 
2545  /* if stream_copy is selected, no need to decode or encode */
2546  enc_ctx->codec_id = dec_ctx->codec_id;
2547  enc_ctx->codec_type = dec_ctx->codec_type;
2548 
2549  if (!enc_ctx->codec_tag) {
2550  unsigned int codec_tag;
2551  if (!oc->oformat->codec_tag ||
2552  av_codec_get_id (oc->oformat->codec_tag, dec_ctx->codec_tag) == enc_ctx->codec_id ||
2553  !av_codec_get_tag2(oc->oformat->codec_tag, dec_ctx->codec_id, &codec_tag))
2554  enc_ctx->codec_tag = dec_ctx->codec_tag;
2555  }
2556 
2557  enc_ctx->bit_rate = dec_ctx->bit_rate;
2558  enc_ctx->rc_max_rate = dec_ctx->rc_max_rate;
2559  enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size;
2560  enc_ctx->field_order = dec_ctx->field_order;
2561  enc_ctx->extradata = av_mallocz(extra_size);
2562  if (!enc_ctx->extradata) {
2563  return AVERROR(ENOMEM);
2564  }
2565  memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
2566  enc_ctx->extradata_size= dec_ctx->extradata_size;
2567  enc_ctx->bits_per_coded_sample = dec_ctx->bits_per_coded_sample;
2568 
2569  enc_ctx->time_base = ist->st->time_base;
2570  /*
2571  * Avi is a special case here because it supports variable fps but
2572  * having the fps and timebase differe significantly adds quite some
2573  * overhead
2574  */
2575  if(!strcmp(oc->oformat->name, "avi")) {
2576  if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
2577  && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
2578  && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(dec_ctx->time_base)
2579  && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(dec_ctx->time_base) < 1.0/500
2580  || copy_tb==2){
2581  enc_ctx->time_base.num = ist->st->r_frame_rate.den;
2582  enc_ctx->time_base.den = 2*ist->st->r_frame_rate.num;
2583  enc_ctx->ticks_per_frame = 2;
2584  } else if ( copy_tb<0 && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > 2*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  enc_ctx->time_base.den *= 2;
2590  enc_ctx->ticks_per_frame = 2;
2591  }
2592  } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
2593  && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
2594  && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
2595  && strcmp(oc->oformat->name, "f4v")
2596  ) {
2597  if( copy_tb<0 && dec_ctx->time_base.den
2598  && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > av_q2d(ist->st->time_base)
2599  && av_q2d(ist->st->time_base) < 1.0/500
2600  || copy_tb==0){
2601  enc_ctx->time_base = dec_ctx->time_base;
2602  enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
2603  }
2604  }
2605  if ( enc_ctx->codec_tag == AV_RL32("tmcd")
2606  && dec_ctx->time_base.num < dec_ctx->time_base.den
2607  && dec_ctx->time_base.num > 0
2608  && 121LL*dec_ctx->time_base.num > dec_ctx->time_base.den) {
2609  enc_ctx->time_base = dec_ctx->time_base;
2610  }
2611 
2612  if (ist && !ost->frame_rate.num)
2613  ost->frame_rate = ist->framerate;
2614  if(ost->frame_rate.num)
2615  enc_ctx->time_base = av_inv_q(ost->frame_rate);
2616 
2617  av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den,
2618  enc_ctx->time_base.num, enc_ctx->time_base.den, INT_MAX);
2619 
2620  ost->parser = av_parser_init(enc_ctx->codec_id);
2621 
2622  switch (enc_ctx->codec_type) {
2623  case AVMEDIA_TYPE_AUDIO:
2624  if (audio_volume != 256) {
2625  av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2626  exit_program(1);
2627  }
2628  enc_ctx->channel_layout = dec_ctx->channel_layout;
2629  enc_ctx->sample_rate = dec_ctx->sample_rate;
2630  enc_ctx->channels = dec_ctx->channels;
2631  enc_ctx->frame_size = dec_ctx->frame_size;
2632  enc_ctx->audio_service_type = dec_ctx->audio_service_type;
2633  enc_ctx->block_align = dec_ctx->block_align;
2634  enc_ctx->delay = dec_ctx->delay;
2635  if((enc_ctx->block_align == 1 || enc_ctx->block_align == 1152 || enc_ctx->block_align == 576) && enc_ctx->codec_id == AV_CODEC_ID_MP3)
2636  enc_ctx->block_align= 0;
2637  if(enc_ctx->codec_id == AV_CODEC_ID_AC3)
2638  enc_ctx->block_align= 0;
2639  break;
2640  case AVMEDIA_TYPE_VIDEO:
2641  enc_ctx->pix_fmt = dec_ctx->pix_fmt;
2642  enc_ctx->width = dec_ctx->width;
2643  enc_ctx->height = dec_ctx->height;
2644  enc_ctx->has_b_frames = dec_ctx->has_b_frames;
2645  if (ost->frame_aspect_ratio.num) { // overridden by the -aspect cli option
2646  sar =
2648  (AVRational){ enc_ctx->height, enc_ctx->width });
2649  av_log(NULL, AV_LOG_WARNING, "Overriding aspect ratio "
2650  "with stream copy may produce invalid files\n");
2651  }
2652  else if (ist->st->sample_aspect_ratio.num)
2653  sar = ist->st->sample_aspect_ratio;
2654  else
2655  sar = dec_ctx->sample_aspect_ratio;
2656  ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio = sar;
2657  ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2658  break;
2659  case AVMEDIA_TYPE_SUBTITLE:
2660  enc_ctx->width = dec_ctx->width;
2661  enc_ctx->height = dec_ctx->height;
2662  break;
2663  case AVMEDIA_TYPE_DATA:
2665  break;
2666  default:
2667  abort();
2668  }
2669  } else {
2670  if (!ost->enc)
2671  ost->enc = avcodec_find_encoder(enc_ctx->codec_id);
2672  if (!ost->enc) {
2673  /* should only happen when a default codec is not present. */
2674  snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2675  avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2676  ret = AVERROR(EINVAL);
2677  goto dump_format;
2678  }
2679 
2680  if (ist)
2681  ist->decoding_needed++;
2682  ost->encoding_needed = 1;
2683 
2684  set_encoder_id(output_files[ost->file_index], ost);
2685 
2686  if (!ost->filter &&
2687  (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
2688  enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO)) {
2689  FilterGraph *fg;
2690  fg = init_simple_filtergraph(ist, ost);
2691  if (configure_filtergraph(fg)) {
2692  av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2693  exit_program(1);
2694  }
2695  }
2696 
2697  if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
2698  if (ost->filter && !ost->frame_rate.num)
2700  if (ist && !ost->frame_rate.num)
2701  ost->frame_rate = ist->framerate;
2702  if (ist && !ost->frame_rate.num)
2703  ost->frame_rate = ist->st->r_frame_rate;
2704  if (ist && !ost->frame_rate.num) {
2705  ost->frame_rate = (AVRational){25, 1};
2706  av_log(NULL, AV_LOG_WARNING,
2707  "No information "
2708  "about the input framerate is available. Falling "
2709  "back to a default value of 25fps for output stream #%d:%d. Use the -r option "
2710  "if you want a different framerate.\n",
2711  ost->file_index, ost->index);
2712  }
2713 // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2714  if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2716  ost->frame_rate = ost->enc->supported_framerates[idx];
2717  }
2718  if (enc_ctx->codec_id == AV_CODEC_ID_MPEG4) {
2719  av_reduce(&ost->frame_rate.num, &ost->frame_rate.den,
2720  ost->frame_rate.num, ost->frame_rate.den, 65535);
2721  }
2722  }
2723 
2724  switch (enc_ctx->codec_type) {
2725  case AVMEDIA_TYPE_AUDIO:
2726  enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format;
2727  enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2728  enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2729  enc_ctx->channels = avfilter_link_get_channels(ost->filter->filter->inputs[0]);
2730  enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
2731  break;
2732  case AVMEDIA_TYPE_VIDEO:
2733  enc_ctx->time_base = av_inv_q(ost->frame_rate);
2734  if (ost->filter && !(enc_ctx->time_base.num && enc_ctx->time_base.den))
2735  enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
2736  if ( av_q2d(enc_ctx->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
2738  av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
2739  "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
2740  }
2741  for (j = 0; j < ost->forced_kf_count; j++)
2742  ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2744  enc_ctx->time_base);
2745 
2746  enc_ctx->width = ost->filter->filter->inputs[0]->w;
2747  enc_ctx->height = ost->filter->filter->inputs[0]->h;
2748  enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2749  ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option
2750  av_mul_q(ost->frame_aspect_ratio, (AVRational){ enc_ctx->height, enc_ctx->width }) :
2752  if (!strncmp(ost->enc->name, "libx264", 7) &&
2753  enc_ctx->pix_fmt == AV_PIX_FMT_NONE &&
2755  av_log(NULL, AV_LOG_WARNING,
2756  "No pixel format specified, %s for H.264 encoding chosen.\n"
2757  "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2759  if (!strncmp(ost->enc->name, "mpeg2video", 10) &&
2760  enc_ctx->pix_fmt == AV_PIX_FMT_NONE &&
2762  av_log(NULL, AV_LOG_WARNING,
2763  "No pixel format specified, %s for MPEG-2 encoding chosen.\n"
2764  "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2766  enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
2767 
2768  ost->st->avg_frame_rate = ost->frame_rate;
2769 
2770  if (!dec_ctx ||
2771  enc_ctx->width != dec_ctx->width ||
2772  enc_ctx->height != dec_ctx->height ||
2773  enc_ctx->pix_fmt != dec_ctx->pix_fmt) {
2774  enc_ctx->bits_per_raw_sample = frame_bits_per_raw_sample;
2775  }
2776 
2777  if (ost->forced_keyframes) {
2778  if (!strncmp(ost->forced_keyframes, "expr:", 5)) {
2780  forced_keyframes_const_names, NULL, NULL, NULL, NULL, 0, NULL);
2781  if (ret < 0) {
2782  av_log(NULL, AV_LOG_ERROR,
2783  "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5);
2784  return ret;
2785  }
2790  } else {
2792  }
2793  }
2794  break;
2795  case AVMEDIA_TYPE_SUBTITLE:
2796  enc_ctx->time_base = (AVRational){1, 1000};
2797  if (!enc_ctx->width) {
2798  enc_ctx->width = input_streams[ost->source_index]->st->codec->width;
2799  enc_ctx->height = input_streams[ost->source_index]->st->codec->height;
2800  }
2801  break;
2802  default:
2803  abort();
2804  break;
2805  }
2806  /* two pass mode */
2807  if (enc_ctx->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
2808  char logfilename[1024];
2809  FILE *f;
2810 
2811  snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2812  ost->logfile_prefix ? ost->logfile_prefix :
2814  i);
2815  if (!strcmp(ost->enc->name, "libx264")) {
2816  av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2817  } else {
2818  if (enc_ctx->flags & CODEC_FLAG_PASS2) {
2819  char *logbuffer;
2820  size_t logbuffer_size;
2821  if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2822  av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2823  logfilename);
2824  exit_program(1);
2825  }
2826  enc_ctx->stats_in = logbuffer;
2827  }
2828  if (enc_ctx->flags & CODEC_FLAG_PASS1) {
2829  f = av_fopen_utf8(logfilename, "wb");
2830  if (!f) {
2831  av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2832  logfilename, strerror(errno));
2833  exit_program(1);
2834  }
2835  ost->logfile = f;
2836  }
2837  }
2838  }
2839  }
2840  }
2841 
2842  /* open each encoder */
2843  for (i = 0; i < nb_output_streams; i++) {
2844  ost = output_streams[i];
2845  if (ost->encoding_needed) {
2846  AVCodec *codec = ost->enc;
2847  AVCodecContext *dec = NULL;
2848 
2849  if ((ist = get_input_stream(ost)))
2850  dec = ist->dec_ctx;
2851  if (dec && dec->subtitle_header) {
2852  /* ASS code assumes this buffer is null terminated so add extra byte. */
2853  ost->enc_ctx->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
2854  if (!ost->enc_ctx->subtitle_header) {
2855  ret = AVERROR(ENOMEM);
2856  goto dump_format;
2857  }
2858  memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2859  ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
2860  }
2861  if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
2862  av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
2863  av_dict_set(&ost->encoder_opts, "side_data_only_packets", "1", 0);
2864 
2865  if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
2866  if (ret == AVERROR_EXPERIMENTAL)
2867  abort_codec_experimental(codec, 1);
2868  snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2869  ost->file_index, ost->index);
2870  goto dump_format;
2871  }
2872  if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
2873  !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
2874  av_buffersink_set_frame_size(ost->filter->filter,
2875  ost->enc_ctx->frame_size);
2876  assert_avoptions(ost->encoder_opts);
2877  if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000)
2878  av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2879  " It takes bits/s as argument, not kbits/s\n");
2880  } else {
2881  if (av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts) < 0) {
2882  av_log(NULL, AV_LOG_FATAL,
2883  "Error setting up codec context options.\n");
2884  exit_program(1);
2885  }
2886  }
2887 
2888  ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx);
2889  if (ret < 0) {
2890  av_log(NULL, AV_LOG_FATAL,
2891  "Error initializing the output stream codec context.\n");
2892  exit_program(1);
2893  }
2894  ost->st->codec->codec= ost->enc_ctx->codec;
2895 
2896  // copy timebase while removing common factors
2897  ost->st->time_base = av_add_q(ost->enc_ctx->time_base, (AVRational){0, 1});
2898  }
2899 
2900  /* init input streams */
2901  for (i = 0; i < nb_input_streams; i++)
2902  if ((ret = init_input_stream(i, error, sizeof(error))) < 0) {
2903  for (i = 0; i < nb_output_streams; i++) {
2904  ost = output_streams[i];
2905  avcodec_close(ost->enc_ctx);
2906  }
2907  goto dump_format;
2908  }
2909 
2910  /* discard unused programs */
2911  for (i = 0; i < nb_input_files; i++) {
2912  InputFile *ifile = input_files[i];
2913  for (j = 0; j < ifile->ctx->nb_programs; j++) {
2914  AVProgram *p = ifile->ctx->programs[j];
2915  int discard = AVDISCARD_ALL;
2916 
2917  for (k = 0; k < p->nb_stream_indexes; k++)
2918  if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2919  discard = AVDISCARD_DEFAULT;
2920  break;
2921  }
2922  p->discard = discard;
2923  }
2924  }
2925 
2926  /* open files and write file headers */
2927  for (i = 0; i < nb_output_files; i++) {
2928  oc = output_files[i]->ctx;
2929  oc->interrupt_callback = int_cb;
2930  if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2931  snprintf(error, sizeof(error),
2932  "Could not write header for output file #%d "
2933  "(incorrect codec parameters ?): %s",
2934  i, av_err2str(ret));
2935  ret = AVERROR(EINVAL);
2936  goto dump_format;
2937  }
2938 // assert_avoptions(output_files[i]->opts);
2939  if (strcmp(oc->oformat->name, "rtp")) {
2940  want_sdp = 0;
2941  }
2942  }
2943 
2944  dump_format:
2945  /* dump the file output parameters - cannot be done before in case
2946  of stream copy */
2947  for (i = 0; i < nb_output_files; i++) {
2948  av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2949  }
2950 
2951  /* dump the stream mapping */
2952  av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2953  for (i = 0; i < nb_input_streams; i++) {
2954  ist = input_streams[i];
2955 
2956  for (j = 0; j < ist->nb_filters; j++) {
2957  if (ist->filters[j]->graph->graph_desc) {
2958  av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2959  ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2960  ist->filters[j]->name);
2961  if (nb_filtergraphs > 1)
2962  av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2963  av_log(NULL, AV_LOG_INFO, "\n");
2964  }
2965  }
2966  }
2967 
2968  for (i = 0; i < nb_output_streams; i++) {
2969  ost = output_streams[i];
2970 
2971  if (ost->attachment_filename) {
2972  /* an attached file */
2973  av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2974  ost->attachment_filename, ost->file_index, ost->index);
2975  continue;
2976  }
2977 
2978  if (ost->filter && ost->filter->graph->graph_desc) {
2979  /* output from a complex graph */
2980  av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2981  if (nb_filtergraphs > 1)
2982  av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2983 
2984  av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2985  ost->index, ost->enc ? ost->enc->name : "?");
2986  continue;
2987  }
2988 
2989  av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2990  input_streams[ost->source_index]->file_index,
2991  input_streams[ost->source_index]->st->index,
2992  ost->file_index,
2993  ost->index);
2994  if (ost->sync_ist != input_streams[ost->source_index])
2995  av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2996  ost->sync_ist->file_index,
2997  ost->sync_ist->st->index);
2998  if (ost->stream_copy)
2999  av_log(NULL, AV_LOG_INFO, " (copy)");
3000  else {
3001  const AVCodec *in_codec = input_streams[ost->source_index]->dec;
3002  const AVCodec *out_codec = ost->enc;
3003  const char *decoder_name = "?";
3004  const char *in_codec_name = "?";
3005  const char *encoder_name = "?";
3006  const char *out_codec_name = "?";
3007 
3008  if (in_codec) {
3009  decoder_name = in_codec->name;
3010  in_codec_name = avcodec_descriptor_get(in_codec->id)->name;
3011  if (!strcmp(decoder_name, in_codec_name))
3012  decoder_name = "native";
3013  }
3014 
3015  if (out_codec) {
3016  encoder_name = out_codec->name;
3017  out_codec_name = avcodec_descriptor_get(out_codec->id)->name;
3018  if (!strcmp(encoder_name, out_codec_name))
3019  encoder_name = "native";
3020  }
3021 
3022  av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
3023  in_codec_name, decoder_name,
3024  out_codec_name, encoder_name);
3025  }
3026  av_log(NULL, AV_LOG_INFO, "\n");
3027  }
3028 
3029  if (ret) {
3030  av_log(NULL, AV_LOG_ERROR, "%s\n", error);
3031  return ret;
3032  }
3033 
3034  if (want_sdp) {
3035  print_sdp();
3036  }
3037 
3038  transcode_init_done = 1;
3039 
3040  return 0;
3041 }
3042 
3043 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
3044 static int need_output(void)
3045 {
3046  int i;
3047 
3048  for (i = 0; i < nb_output_streams; i++) {
3049  OutputStream *ost = output_streams[i];
3050  OutputFile *of = output_files[ost->file_index];
3051  AVFormatContext *os = output_files[ost->file_index]->ctx;
3052 
3053  if (ost->finished ||
3054  (os->pb && avio_tell(os->pb) >= of->limit_filesize))
3055  continue;
3056  if (ost->frame_number >= ost->max_frames) {
3057  int j;
3058  for (j = 0; j < of->ctx->nb_streams; j++)
3059  close_output_stream(output_streams[of->ost_index + j]);
3060  continue;
3061  }
3062 
3063  return 1;
3064  }
3065 
3066  return 0;
3067 }
3068 
3069 /**
3070  * Select the output stream to process.
3071  *
3072  * @return selected output stream, or NULL if none available
3073  */
3075 {
3076  int i;
3077  int64_t opts_min = INT64_MAX;
3078  OutputStream *ost_min = NULL;
3079 
3080  for (i = 0; i < nb_output_streams; i++) {
3081  OutputStream *ost = output_streams[i];
3082  int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
3083  AV_TIME_BASE_Q);
3084  if (!ost->unavailable && !ost->finished && opts < opts_min) {
3085  opts_min = opts;
3086  ost_min = ost;
3087  }
3088  }
3089  return ost_min;
3090 }
3091 
3093 {
3094  int i, ret, key;
3095  static int64_t last_time;
3096  if (received_nb_signals)
3097  return AVERROR_EXIT;
3098  /* read_key() returns 0 on EOF */
3099  if(cur_time - last_time >= 100000 && !run_as_daemon){
3100  key = read_key();
3101  last_time = cur_time;
3102  }else
3103  key = -1;
3104  if (key == 'q')
3105  return AVERROR_EXIT;
3106  if (key == '+') av_log_set_level(av_log_get_level()+10);
3107  if (key == '-') av_log_set_level(av_log_get_level()-10);
3108  if (key == 's') qp_hist ^= 1;
3109  if (key == 'h'){
3110  if (do_hex_dump){
3111  do_hex_dump = do_pkt_dump = 0;
3112  } else if(do_pkt_dump){
3113  do_hex_dump = 1;
3114  } else
3115  do_pkt_dump = 1;
3117  }
3118  if (key == 'c' || key == 'C'){
3119  char buf[4096], target[64], command[256], arg[256] = {0};
3120  double time;
3121  int k, n = 0;
3122  fprintf(stderr, "\nEnter command: <target>|all <time>|-1 <command>[ <argument>]\n");
3123  i = 0;
3124  while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
3125  if (k > 0)
3126  buf[i++] = k;
3127  buf[i] = 0;
3128  if (k > 0 &&
3129  (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
3130  av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
3131  target, time, command, arg);
3132  for (i = 0; i < nb_filtergraphs; i++) {
3133  FilterGraph *fg = filtergraphs[i];
3134  if (fg->graph) {
3135  if (time < 0) {
3136  ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
3137  key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
3138  fprintf(stderr, "Command reply for stream %d: ret:%d res:\n%s", i, ret, buf);
3139  } else if (key == 'c') {
3140  fprintf(stderr, "Queing commands only on filters supporting the specific command is unsupported\n");
3141  ret = AVERROR_PATCHWELCOME;
3142  } else {
3143  ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
3144  }
3145  }
3146  }
3147  } else {
3148  av_log(NULL, AV_LOG_ERROR,
3149  "Parse error, at least 3 arguments were expected, "
3150  "only %d given in string '%s'\n", n, buf);
3151  }
3152  }
3153  if (key == 'd' || key == 'D'){
3154  int debug=0;
3155  if(key == 'D') {
3156  debug = input_streams[0]->st->codec->debug<<1;
3157  if(!debug) debug = 1;
3158  while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
3159  debug += debug;
3160  }else
3161  if(scanf("%d", &debug)!=1)
3162  fprintf(stderr,"error parsing debug value\n");
3163  for(i=0;i<nb_input_streams;i++) {
3164  input_streams[i]->st->codec->debug = debug;
3165  }
3166  for(i=0;i<nb_output_streams;i++) {
3167  OutputStream *ost = output_streams[i];
3168  ost->enc_ctx->debug = debug;
3169  }
3170  if(debug) av_log_set_level(AV_LOG_DEBUG);
3171  fprintf(stderr,"debug=%d\n", debug);
3172  }
3173  if (key == '?'){
3174  fprintf(stderr, "key function\n"
3175  "? show this help\n"
3176  "+ increase verbosity\n"
3177  "- decrease verbosity\n"
3178  "c Send command to first matching filter supporting it\n"
3179  "C Send/Que command to all matching filters\n"
3180  "D cycle through available debug modes\n"
3181  "h dump packets/hex press to cycle through the 3 states\n"
3182  "q quit\n"
3183  "s Show QP histogram\n"
3184  );
3185  }
3186  return 0;
3187 }
3188 
3189 #if HAVE_PTHREADS
3190 static void *input_thread(void *arg)
3191 {
3192  InputFile *f = arg;
3193  int ret = 0;
3194 
3195  while (1) {
3196  AVPacket pkt;
3197  ret = av_read_frame(f->ctx, &pkt);
3198 
3199  if (ret == AVERROR(EAGAIN)) {
3200  av_usleep(10000);
3201  continue;
3202  }
3203  if (ret < 0) {
3204  av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
3205  break;
3206  }
3207  av_dup_packet(&pkt);
3208  ret = av_thread_message_queue_send(f->in_thread_queue, &pkt, 0);
3209  if (ret < 0) {
3210  if (ret != AVERROR_EOF)
3211  av_log(f->ctx, AV_LOG_ERROR,
3212  "Unable to send packet to main thread: %s\n",
3213  av_err2str(ret));
3214  av_free_packet(&pkt);
3215  av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
3216  break;
3217  }
3218  }
3219 
3220  return NULL;
3221 }
3222 
3223 static void free_input_threads(void)
3224 {
3225  int i;
3226 
3227  for (i = 0; i < nb_input_files; i++) {
3228  InputFile *f = input_files[i];
3229  AVPacket pkt;
3230 
3231  if (!f->in_thread_queue)
3232  continue;
3234  while (av_thread_message_queue_recv(f->in_thread_queue, &pkt, 0) >= 0)
3235  av_free_packet(&pkt);
3236 
3237  pthread_join(f->thread, NULL);
3238  f->joined = 1;
3239  av_thread_message_queue_free(&f->in_thread_queue);
3240  }
3241 }
3242 
3243 static int init_input_threads(void)
3244 {
3245  int i, ret;
3246 
3247  if (nb_input_files == 1)
3248  return 0;
3249 
3250  for (i = 0; i < nb_input_files; i++) {
3251  InputFile *f = input_files[i];
3252 
3253  if (f->ctx->pb ? !f->ctx->pb->seekable :
3254  strcmp(f->ctx->iformat->name, "lavfi"))
3255  f->non_blocking = 1;
3256  ret = av_thread_message_queue_alloc(&f->in_thread_queue,
3257  8, sizeof(AVPacket));
3258  if (ret < 0)
3259  return ret;
3260 
3261  if ((ret = pthread_create(&f->thread, NULL, input_thread, f))) {
3262  av_log(NULL, AV_LOG_ERROR, "pthread_create failed: %s. Try to increase `ulimit -v` or decrease `ulimit -s`.\n", strerror(ret));
3263  av_thread_message_queue_free(&f->in_thread_queue);
3264  return AVERROR(ret);
3265  }
3266  }
3267  return 0;
3268 }
3269 
3270 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
3271 {
3272  return av_thread_message_queue_recv(f->in_thread_queue, pkt,
3273  f->non_blocking ?
3275 }
3276 #endif
3277 
3279 {
3280  if (f->rate_emu) {
3281  int i;
3282  for (i = 0; i < f->nb_streams; i++) {
3283  InputStream *ist = input_streams[f->ist_index + i];
3284  int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
3285  int64_t now = av_gettime_relative() - ist->start;
3286  if (pts > now)
3287  return AVERROR(EAGAIN);
3288  }
3289  }
3290 
3291 #if HAVE_PTHREADS
3292  if (nb_input_files > 1)
3293  return get_input_packet_mt(f, pkt);
3294 #endif
3295  return av_read_frame(f->ctx, pkt);
3296 }
3297 
3298 static int got_eagain(void)
3299 {
3300  int i;
3301  for (i = 0; i < nb_output_streams; i++)
3302  if (output_streams[i]->unavailable)
3303  return 1;
3304  return 0;
3305 }
3306 
3307 static void reset_eagain(void)
3308 {
3309  int i;
3310  for (i = 0; i < nb_input_files; i++)
3311  input_files[i]->eagain = 0;
3312  for (i = 0; i < nb_output_streams; i++)
3313  output_streams[i]->unavailable = 0;
3314 }
3315 
3316 /*
3317  * Return
3318  * - 0 -- one packet was read and processed
3319  * - AVERROR(EAGAIN) -- no packets were available for selected file,
3320  * this function should be called again
3321  * - AVERROR_EOF -- this function should not be called again
3322  */
3323 static int process_input(int file_index)
3324 {
3325  InputFile *ifile = input_files[file_index];
3326  AVFormatContext *is;
3327  InputStream *ist;
3328  AVPacket pkt;
3329  int ret, i, j;
3330 
3331  is = ifile->ctx;
3332  ret = get_input_packet(ifile, &pkt);
3333 
3334  if (ret == AVERROR(EAGAIN)) {
3335  ifile->eagain = 1;
3336  return ret;
3337  }
3338  if (ret < 0) {
3339  if (ret != AVERROR_EOF) {
3340  print_error(is->filename, ret);
3341  if (exit_on_error)
3342  exit_program(1);
3343  }
3344 
3345  for (i = 0; i < ifile->nb_streams; i++) {
3346  ist = input_streams[ifile->ist_index + i];
3347  if (ist->decoding_needed) {
3348  ret = process_input_packet(ist, NULL);
3349  if (ret>0)
3350  return 0;
3351  }
3352 
3353  /* mark all outputs that don't go through lavfi as finished */
3354  for (j = 0; j < nb_output_streams; j++) {
3355  OutputStream *ost = output_streams[j];
3356 
3357  if (ost->source_index == ifile->ist_index + i &&
3358  (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
3359  finish_output_stream(ost);
3360  }
3361  }
3362 
3363  ifile->eof_reached = 1;
3364  return AVERROR(EAGAIN);
3365  }
3366 
3367  reset_eagain();
3368 
3369  if (do_pkt_dump) {
3371  is->streams[pkt.stream_index]);
3372  }
3373  /* the following test is needed in case new streams appear
3374  dynamically in stream : we ignore them */
3375  if (pkt.stream_index >= ifile->nb_streams) {
3376  report_new_stream(file_index, &pkt);
3377  goto discard_packet;
3378  }
3379 
3380  ist = input_streams[ifile->ist_index + pkt.stream_index];
3381 
3382  ist->data_size += pkt.size;
3383  ist->nb_packets++;
3384 
3385  if (ist->discard)
3386  goto discard_packet;
3387 
3388  if (debug_ts) {
3389  av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
3390  "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",
3394  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3395  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3396  av_ts2str(input_files[ist->file_index]->ts_offset),
3397  av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3398  }
3399 
3400  if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
3401  int64_t stime, stime2;
3402  // Correcting starttime based on the enabled streams
3403  // 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.
3404  // so we instead do it here as part of discontinuity handling
3405  if ( ist->next_dts == AV_NOPTS_VALUE
3406  && ifile->ts_offset == -is->start_time
3407  && (is->iformat->flags & AVFMT_TS_DISCONT)) {
3408  int64_t new_start_time = INT64_MAX;
3409  for (i=0; i<is->nb_streams; i++) {
3410  AVStream *st = is->streams[i];
3411  if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
3412  continue;
3413  new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
3414  }
3415  if (new_start_time > is->start_time) {
3416  av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
3417  ifile->ts_offset = -new_start_time;
3418  }
3419  }
3420 
3421  stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
3422  stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
3423  ist->wrap_correction_done = 1;
3424 
3425  if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
3426  pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
3427  ist->wrap_correction_done = 0;
3428  }
3429  if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
3430  pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
3431  ist->wrap_correction_done = 0;
3432  }
3433  }
3434 
3435  /* add the stream-global side data to the first packet */
3436  if (ist->nb_packets == 1) {
3437  if (ist->st->nb_side_data)
3439  for (i = 0; i < ist->st->nb_side_data; i++) {
3440  AVPacketSideData *src_sd = &ist->st->side_data[i];
3441  uint8_t *dst_data;
3442 
3443  if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
3444  continue;
3445 
3446  dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
3447  if (!dst_data)
3448  exit_program(1);
3449 
3450  memcpy(dst_data, src_sd->data, src_sd->size);
3451  }
3452  }
3453 
3454  if (pkt.dts != AV_NOPTS_VALUE)
3455  pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3456  if (pkt.pts != AV_NOPTS_VALUE)
3457  pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3458 
3459  if (pkt.pts != AV_NOPTS_VALUE)
3460  pkt.pts *= ist->ts_scale;
3461  if (pkt.dts != AV_NOPTS_VALUE)
3462  pkt.dts *= ist->ts_scale;
3463 
3464  if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts == AV_NOPTS_VALUE && !copy_ts
3465  && (is->iformat->flags & AVFMT_TS_DISCONT) && ifile->last_ts != AV_NOPTS_VALUE) {
3466  int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3467  int64_t delta = pkt_dts - ifile->last_ts;
3468  if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3469  (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
3471  ifile->ts_offset -= delta;
3472  av_log(NULL, AV_LOG_DEBUG,
3473  "Inter stream timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3474  delta, ifile->ts_offset);
3475  pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3476  if (pkt.pts != AV_NOPTS_VALUE)
3477  pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3478  }
3479  }
3480 
3481  if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
3482  !copy_ts) {
3483  int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3484  int64_t delta = pkt_dts - ist->next_dts;
3485  if (is->iformat->flags & AVFMT_TS_DISCONT) {
3486  if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3487  (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
3489  pkt_dts + AV_TIME_BASE/10 < FFMAX(ist->pts, ist->dts)) {
3490  ifile->ts_offset -= delta;
3491  av_log(NULL, AV_LOG_DEBUG,
3492  "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3493  delta, ifile->ts_offset);
3494  pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3495  if (pkt.pts != AV_NOPTS_VALUE)
3496  pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3497  }
3498  } else {
3499  if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3501  av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
3502  pkt.dts = AV_NOPTS_VALUE;
3503  }
3504  if (pkt.pts != AV_NOPTS_VALUE){
3505  int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
3506  delta = pkt_pts - ist->next_dts;
3507  if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3509  av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
3510  pkt.pts = AV_NOPTS_VALUE;
3511  }
3512  }
3513  }
3514  }
3515 
3516  if (pkt.dts != AV_NOPTS_VALUE)
3517  ifile->last_ts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3518 
3519  if (debug_ts) {
3520  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",
3522  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3523  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3524  av_ts2str(input_files[ist->file_index]->ts_offset),
3525  av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3526  }
3527 
3528  sub2video_heartbeat(ist, pkt.pts);
3529 
3530  ret = process_input_packet(ist, &pkt);
3531  if (ret < 0) {
3532  av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
3533  ist->file_index, ist->st->index, av_err2str(ret));
3534  if (exit_on_error)
3535  exit_program(1);
3536  }
3537 
3538 discard_packet:
3539  av_free_packet(&pkt);
3540 
3541  return 0;
3542 }
3543 
3544 /**
3545  * Perform a step of transcoding for the specified filter graph.
3546  *
3547  * @param[in] graph filter graph to consider
3548  * @param[out] best_ist input stream where a frame would allow to continue
3549  * @return 0 for success, <0 for error
3550  */
3551 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
3552 {
3553  int i, ret;
3554  int nb_requests, nb_requests_max = 0;
3555  InputFilter *ifilter;
3556  InputStream *ist;
3557 
3558  *best_ist = NULL;
3559  ret = avfilter_graph_request_oldest(graph->graph);
3560  if (ret >= 0)
3561  return reap_filters();
3562 
3563  if (ret == AVERROR_EOF) {
3564  ret = reap_filters();
3565  for (i = 0; i < graph->nb_outputs; i++)
3566  close_output_stream(graph->outputs[i]->ost);
3567  return ret;
3568  }
3569  if (ret != AVERROR(EAGAIN))
3570  return ret;
3571 
3572  for (i = 0; i < graph->nb_inputs; i++) {
3573  ifilter = graph->inputs[i];
3574  ist = ifilter->ist;
3575  if (input_files[ist->file_index]->eagain ||
3576  input_files[ist->file_index]->eof_reached)
3577  continue;
3578  nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
3579  if (nb_requests > nb_requests_max) {
3580  nb_requests_max = nb_requests;
3581  *best_ist = ist;
3582  }
3583  }
3584 
3585  if (!*best_ist)
3586  for (i = 0; i < graph->nb_outputs; i++)
3587  graph->outputs[i]->ost->unavailable = 1;
3588 
3589  return 0;
3590 }
3591 
3592 /**
3593  * Run a single step of transcoding.
3594  *
3595  * @return 0 for success, <0 for error
3596  */
3597 static int transcode_step(void)
3598 {
3599  OutputStream *ost;
3600  InputStream *ist;
3601  int ret;
3602 
3603  ost = choose_output();
3604  if (!ost) {
3605  if (got_eagain()) {
3606  reset_eagain();
3607  av_usleep(10000);
3608  return 0;
3609  }
3610  av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
3611  return AVERROR_EOF;
3612  }
3613 
3614  if (ost->filter) {
3615  if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
3616  return ret;
3617  if (!ist)
3618  return 0;
3619  } else {
3620  av_assert0(ost->source_index >= 0);
3621  ist = input_streams[ost->source_index];
3622  }
3623 
3624  ret = process_input(ist->file_index);
3625  if (ret == AVERROR(EAGAIN)) {
3626  if (input_files[ist->file_index]->eagain)
3627  ost->unavailable = 1;
3628  return 0;
3629  }
3630  if (ret < 0)
3631  return ret == AVERROR_EOF ? 0 : ret;
3632 
3633  return reap_filters();
3634 }
3635 
3636 /*
3637  * The following code is the main loop of the file converter
3638  */
3639 static int transcode(void)
3640 {
3641  int ret, i;
3642  AVFormatContext *os;
3643  OutputStream *ost;
3644  InputStream *ist;
3645  int64_t timer_start;
3646 
3647  ret = transcode_init();
3648  if (ret < 0)
3649  goto fail;
3650 
3651  if (stdin_interaction) {
3652  av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
3653  }
3654 
3655  timer_start = av_gettime_relative();
3656 
3657 #if HAVE_PTHREADS
3658  if ((ret = init_input_threads()) < 0)
3659  goto fail;
3660 #endif
3661 
3662  while (!received_sigterm) {
3663  int64_t cur_time= av_gettime_relative();
3664 
3665  /* if 'q' pressed, exits */
3666  if (stdin_interaction)
3667  if (check_keyboard_interaction(cur_time) < 0)
3668  break;
3669 
3670  /* check if there's any stream where output is still needed */
3671  if (!need_output()) {
3672  av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3673  break;
3674  }
3675 
3676  ret = transcode_step();
3677  if (ret < 0) {
3678  if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
3679  continue;
3680 
3681  av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
3682  break;
3683  }
3684 
3685  /* dump report by using the output first video and audio streams */
3686  print_report(0, timer_start, cur_time);
3687  }
3688 #if HAVE_PTHREADS
3690 #endif
3691 
3692  /* at the end of stream, we must flush the decoder buffers */
3693  for (i = 0; i < nb_input_streams; i++) {
3694  ist = input_streams[i];
3695  if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
3696  process_input_packet(ist, NULL);
3697  }
3698  }
3699  flush_encoders();
3700 
3701  term_exit();
3702 
3703  /* write the trailer if needed and close file */
3704  for (i = 0; i < nb_output_files; i++) {
3705  os = output_files[i]->ctx;
3706  av_write_trailer(os);
3707  }
3708 
3709  /* dump report by using the first video and audio streams */
3710  print_report(1, timer_start, av_gettime_relative());
3711 
3712  /* close each encoder */
3713  for (i = 0; i < nb_output_streams; i++) {
3714  ost = output_streams[i];
3715  if (ost->encoding_needed) {
3716  av_freep(&ost->enc_ctx->stats_in);
3717  }
3718  }
3719 
3720  /* close each decoder */
3721  for (i = 0; i < nb_input_streams; i++) {
3722  ist = input_streams[i];
3723  if (ist->decoding_needed) {
3724  avcodec_close(ist->dec_ctx);
3725  if (ist->hwaccel_uninit)
3726  ist->hwaccel_uninit(ist->dec_ctx);
3727  }
3728  }
3729 
3730  /* finished ! */
3731  ret = 0;
3732 
3733  fail:
3734 #if HAVE_PTHREADS
3736 #endif
3737 
3738  if (output_streams) {
3739  for (i = 0; i < nb_output_streams; i++) {
3740  ost = output_streams[i];
3741  if (ost) {
3742  if (ost->logfile) {
3743  fclose(ost->logfile);
3744  ost->logfile = NULL;
3745  }
3746  av_freep(&ost->forced_kf_pts);
3747  av_freep(&ost->apad);
3748  av_dict_free(&ost->encoder_opts);
3749  av_dict_free(&ost->swr_opts);
3750  av_dict_free(&ost->resample_opts);
3751  }
3752  }
3753  }
3754  return ret;
3755 }
3756 
3757 
3758 static int64_t getutime(void)
3759 {
3760 #if HAVE_GETRUSAGE
3761  struct rusage rusage;
3762 
3763  getrusage(RUSAGE_SELF, &rusage);
3764  return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3765 #elif HAVE_GETPROCESSTIMES
3766  HANDLE proc;
3767  FILETIME c, e, k, u;
3768  proc = GetCurrentProcess();
3769  GetProcessTimes(proc, &c, &e, &k, &u);
3770  return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3771 #else
3772  return av_gettime();
3773 #endif
3774 }
3775 
3776 static int64_t getmaxrss(void)
3777 {
3778 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3779  struct rusage rusage;
3780  getrusage(RUSAGE_SELF, &rusage);
3781  return (int64_t)rusage.ru_maxrss * 1024;
3782 #elif HAVE_GETPROCESSMEMORYINFO
3783  HANDLE proc;
3784  PROCESS_MEMORY_COUNTERS memcounters;
3785  proc = GetCurrentProcess();
3786  memcounters.cb = sizeof(memcounters);
3787  GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3788  return memcounters.PeakPagefileUsage;
3789 #else
3790  return 0;
3791 #endif
3792 }
3793 
3794 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
3795 {
3796 }
3797 
3798 int main(int argc, char **argv)
3799 {
3800  int ret;
3801  int64_t ti;
3802 
3804 
3805  setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
3806 
3808  parse_loglevel(argc, argv, options);
3809 
3810  if(argc>1 && !strcmp(argv[1], "-d")){
3811  run_as_daemon=1;
3813  argc--;
3814  argv++;
3815  }
3816 
3818 #if CONFIG_AVDEVICE
3820 #endif
3822  av_register_all();
3824 
3825  show_banner(argc, argv, options);
3826 
3827  term_init();
3828 
3829  /* parse options and open all input/output files */
3830  ret = ffmpeg_parse_options(argc, argv);
3831  if (ret < 0)
3832  exit_program(1);
3833 
3834  if (nb_output_files <= 0 && nb_input_files == 0) {
3835  show_usage();
3836  av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3837  exit_program(1);
3838  }
3839 
3840  /* file converter / grab */
3841  if (nb_output_files <= 0) {
3842  av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
3843  exit_program(1);
3844  }
3845 
3846 // if (nb_input_files == 0) {
3847 // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
3848 // exit_program(1);
3849 // }
3850 
3851  current_time = ti = getutime();
3852  if (transcode() < 0)
3853  exit_program(1);
3854  ti = getutime() - ti;
3855  if (do_benchmark) {
3856  printf("bench: utime=%0.3fs\n", ti / 1000000.0);
3857  }
3858  av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n",
3861  exit_program(69);
3862 
3864  return main_return_code;
3865 }