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 
593  if (!ost->st->codec->extradata_size && ost->enc_ctx->extradata_size) {
595  if (ost->st->codec->extradata) {
596  memcpy(ost->st->codec->extradata, ost->enc_ctx->extradata, ost->enc_ctx->extradata_size);
598  }
599  }
600 
603  pkt->pts = pkt->dts = AV_NOPTS_VALUE;
604 
605  /*
606  * Audio encoders may split the packets -- #frames in != #packets out.
607  * But there is no reordering, so we can limit the number of output packets
608  * by simply dropping them here.
609  * Counting encoded video frames needs to be done separately because of
610  * reordering, see do_video_out()
611  */
612  if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
613  if (ost->frame_number >= ost->max_frames) {
614  av_free_packet(pkt);
615  return;
616  }
617  ost->frame_number++;
618  }
619 
620  if (bsfc)
622 
623  while (bsfc) {
624  AVPacket new_pkt = *pkt;
625  int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
626  &new_pkt.data, &new_pkt.size,
627  pkt->data, pkt->size,
628  pkt->flags & AV_PKT_FLAG_KEY);
629  if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) {
630  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
631  if(t) {
632  memcpy(t, new_pkt.data, new_pkt.size);
633  memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
634  new_pkt.data = t;
635  new_pkt.buf = NULL;
636  a = 1;
637  } else
638  a = AVERROR(ENOMEM);
639  }
640  if (a > 0) {
641  pkt->side_data = NULL;
642  pkt->side_data_elems = 0;
643  av_free_packet(pkt);
644  new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
645  av_buffer_default_free, NULL, 0);
646  if (!new_pkt.buf)
647  exit_program(1);
648  } else if (a < 0) {
649  av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
650  bsfc->filter->name, pkt->stream_index,
651  avctx->codec ? avctx->codec->name : "copy");
652  print_error("", a);
653  if (exit_on_error)
654  exit_program(1);
655  }
656  *pkt = new_pkt;
657 
658  bsfc = bsfc->next;
659  }
660 
661  if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS)) {
662  if(
663  (avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) &&
664  pkt->dts != AV_NOPTS_VALUE &&
665  ost->last_mux_dts != AV_NOPTS_VALUE) {
666  int64_t max = ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
667  if (pkt->dts < max) {
668  int loglevel = max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG;
669  av_log(s, loglevel, "Non-monotonous DTS in output stream "
670  "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
671  ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
672  if (exit_on_error) {
673  av_log(NULL, AV_LOG_FATAL, "aborting.\n");
674  exit_program(1);
675  }
676  av_log(s, loglevel, "changing to %"PRId64". This may result "
677  "in incorrect timestamps in the output file.\n",
678  max);
679  if(pkt->pts >= pkt->dts)
680  pkt->pts = FFMAX(pkt->pts, max);
681  pkt->dts = max;
682  }
683  }
684  if (pkt->dts != AV_NOPTS_VALUE &&
685  pkt->pts != AV_NOPTS_VALUE &&
686  pkt->dts > pkt->pts) {
687  av_log(s, AV_LOG_WARNING, "Invalid DTS: %"PRId64" PTS: %"PRId64" in output stream %d:%d\n",
688  pkt->dts, pkt->pts,
689  ost->file_index, ost->st->index);
690  pkt->pts = AV_NOPTS_VALUE;
691  pkt->dts = AV_NOPTS_VALUE;
692  }
693  }
694  ost->last_mux_dts = pkt->dts;
695 
696  ost->data_size += pkt->size;
697  ost->packets_written++;
698 
699  pkt->stream_index = ost->index;
700 
701  if (debug_ts) {
702  av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
703  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
705  av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
706  av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
707  pkt->size
708  );
709  }
710 
711  ret = av_interleaved_write_frame(s, pkt);
712  if (ret < 0) {
713  print_error("av_interleaved_write_frame()", ret);
714  main_return_code = 1;
716  }
717  av_free_packet(pkt);
718 }
719 
721 {
722  OutputFile *of = output_files[ost->file_index];
723 
724  ost->finished |= ENCODER_FINISHED;
725  if (of->shortest) {
726  int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, AV_TIME_BASE_Q);
727  of->recording_time = FFMIN(of->recording_time, end);
728  }
729 }
730 
732 {
733  OutputFile *of = output_files[ost->file_index];
734 
735  if (of->recording_time != INT64_MAX &&
737  AV_TIME_BASE_Q) >= 0) {
738  close_output_stream(ost);
739  return 0;
740  }
741  return 1;
742 }
743 
745  AVFrame *frame)
746 {
747  AVCodecContext *enc = ost->enc_ctx;
748  AVPacket pkt;
749  int got_packet = 0;
750 
751  av_init_packet(&pkt);
752  pkt.data = NULL;
753  pkt.size = 0;
754 
755  if (!check_recording_time(ost))
756  return;
757 
758  if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
759  frame->pts = ost->sync_opts;
760  ost->sync_opts = frame->pts + frame->nb_samples;
761  ost->samples_encoded += frame->nb_samples;
762  ost->frames_encoded++;
763 
764  av_assert0(pkt.size || !pkt.data);
765  update_benchmark(NULL);
766  if (debug_ts) {
767  av_log(NULL, AV_LOG_INFO, "encoder <- type:audio "
768  "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
769  av_ts2str(frame->pts), av_ts2timestr(frame->pts, &enc->time_base),
770  enc->time_base.num, enc->time_base.den);
771  }
772 
773  if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
774  av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
775  exit_program(1);
776  }
777  update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
778 
779  if (got_packet) {
780  av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
781 
782  if (debug_ts) {
783  av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
784  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
785  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
786  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
787  }
788 
789  write_frame(s, &pkt, ost);
790  }
791 }
792 
794  OutputStream *ost,
795  InputStream *ist,
796  AVSubtitle *sub)
797 {
798  int subtitle_out_max_size = 1024 * 1024;
799  int subtitle_out_size, nb, i;
800  AVCodecContext *enc;
801  AVPacket pkt;
802  int64_t pts;
803 
804  if (sub->pts == AV_NOPTS_VALUE) {
805  av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
806  if (exit_on_error)
807  exit_program(1);
808  return;
809  }
810 
811  enc = ost->enc_ctx;
812 
813  if (!subtitle_out) {
814  subtitle_out = av_malloc(subtitle_out_max_size);
815  }
816 
817  /* Note: DVB subtitle need one packet to draw them and one other
818  packet to clear them */
819  /* XXX: signal it in the codec context ? */
821  nb = 2;
822  else
823  nb = 1;
824 
825  /* shift timestamp to honor -ss and make check_recording_time() work with -t */
826  pts = sub->pts;
827  if (output_files[ost->file_index]->start_time != AV_NOPTS_VALUE)
828  pts -= output_files[ost->file_index]->start_time;
829  for (i = 0; i < nb; i++) {
830  unsigned save_num_rects = sub->num_rects;
831 
832  ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
833  if (!check_recording_time(ost))
834  return;
835 
836  sub->pts = pts;
837  // start_display_time is required to be 0
838  sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
840  sub->start_display_time = 0;
841  if (i == 1)
842  sub->num_rects = 0;
843 
844  ost->frames_encoded++;
845 
846  subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
847  subtitle_out_max_size, sub);
848  if (i == 1)
849  sub->num_rects = save_num_rects;
850  if (subtitle_out_size < 0) {
851  av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
852  exit_program(1);
853  }
854 
855  av_init_packet(&pkt);
856  pkt.data = subtitle_out;
857  pkt.size = subtitle_out_size;
858  pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
859  pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
860  if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
861  /* XXX: the pts correction is handled here. Maybe handling
862  it in the codec would be better */
863  if (i == 0)
864  pkt.pts += 90 * sub->start_display_time;
865  else
866  pkt.pts += 90 * sub->end_display_time;
867  }
868  pkt.dts = pkt.pts;
869  write_frame(s, &pkt, ost);
870  }
871 }
872 
874  OutputStream *ost,
875  AVFrame *in_picture)
876 {
877  int ret, format_video_sync;
878  AVPacket pkt;
879  AVCodecContext *enc = ost->enc_ctx;
880  AVCodecContext *mux_enc = ost->st->codec;
881  int nb_frames, i;
882  double sync_ipts, delta;
883  double duration = 0;
884  int frame_size = 0;
885  InputStream *ist = NULL;
886 
887  if (ost->source_index >= 0)
888  ist = input_streams[ost->source_index];
889 
890  if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
891  duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
892 
893  sync_ipts = in_picture->pts;
894  delta = sync_ipts - ost->sync_opts + duration;
895 
896  /* by default, we output a single frame */
897  nb_frames = 1;
898 
899  format_video_sync = video_sync_method;
900  if (format_video_sync == VSYNC_AUTO) {
901  if(!strcmp(s->oformat->name, "avi")) {
902  format_video_sync = VSYNC_VFR;
903  } else
905  if ( ist
906  && format_video_sync == VSYNC_CFR
907  && input_files[ist->file_index]->ctx->nb_streams == 1
908  && input_files[ist->file_index]->input_ts_offset == 0) {
909  format_video_sync = VSYNC_VSCFR;
910  }
911  if (format_video_sync == VSYNC_CFR && copy_ts) {
912  format_video_sync = VSYNC_VSCFR;
913  }
914  }
915 
916  switch (format_video_sync) {
917  case VSYNC_VSCFR:
918  if (ost->frame_number == 0 && delta - duration >= 0.5) {
919  av_log(NULL, AV_LOG_DEBUG, "Not duplicating %d initial frames\n", (int)lrintf(delta - duration));
920  delta = duration;
921  ost->sync_opts = lrint(sync_ipts);
922  }
923  case VSYNC_CFR:
924  // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
925  if (delta < -1.1)
926  nb_frames = 0;
927  else if (delta > 1.1)
928  nb_frames = lrintf(delta);
929  break;
930  case VSYNC_VFR:
931  if (delta <= -0.6)
932  nb_frames = 0;
933  else if (delta > 0.6)
934  ost->sync_opts = lrint(sync_ipts);
935  break;
936  case VSYNC_DROP:
937  case VSYNC_PASSTHROUGH:
938  ost->sync_opts = lrint(sync_ipts);
939  break;
940  default:
941  av_assert0(0);
942  }
943 
944  nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
945  if (nb_frames == 0) {
946  nb_frames_drop++;
947  av_log(NULL, AV_LOG_VERBOSE,
948  "*** dropping frame %d from stream %d at ts %"PRId64"\n",
949  ost->frame_number, ost->st->index, in_picture->pts);
950  return;
951  } else if (nb_frames > 1) {
952  if (nb_frames > dts_error_threshold * 30) {
953  av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
954  nb_frames_drop++;
955  return;
956  }
957  nb_frames_dup += nb_frames - 1;
958  av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
959  }
960 
961  /* duplicates frame if needed */
962  for (i = 0; i < nb_frames; i++) {
963  av_init_packet(&pkt);
964  pkt.data = NULL;
965  pkt.size = 0;
966 
967  in_picture->pts = ost->sync_opts;
968 
969 #if 1
970  if (!check_recording_time(ost))
971 #else
972  if (ost->frame_number >= ost->max_frames)
973 #endif
974  return;
975 
976  if (s->oformat->flags & AVFMT_RAWPICTURE &&
977  enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
978  /* raw pictures are written as AVPicture structure to
979  avoid any copies. We support temporarily the older
980  method. */
981  mux_enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
982  mux_enc->coded_frame->top_field_first = in_picture->top_field_first;
983  if (mux_enc->coded_frame->interlaced_frame)
985  else
987  pkt.data = (uint8_t *)in_picture;
988  pkt.size = sizeof(AVPicture);
989  pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
990  pkt.flags |= AV_PKT_FLAG_KEY;
991 
992  write_frame(s, &pkt, ost);
993  } else {
994  int got_packet, forced_keyframe = 0;
995  double pts_time;
996 
998  ost->top_field_first >= 0)
999  in_picture->top_field_first = !!ost->top_field_first;
1000 
1001  if (in_picture->interlaced_frame) {
1002  if (enc->codec->id == AV_CODEC_ID_MJPEG)
1003  mux_enc->field_order = in_picture->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
1004  else
1005  mux_enc->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
1006  } else
1007  mux_enc->field_order = AV_FIELD_PROGRESSIVE;
1008 
1009  in_picture->quality = enc->global_quality;
1010  if (!enc->me_threshold)
1011  in_picture->pict_type = 0;
1012 
1013  pts_time = in_picture->pts != AV_NOPTS_VALUE ?
1014  in_picture->pts * av_q2d(enc->time_base) : NAN;
1015  if (ost->forced_kf_index < ost->forced_kf_count &&
1016  in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1017  ost->forced_kf_index++;
1018  forced_keyframe = 1;
1019  } else if (ost->forced_keyframes_pexpr) {
1020  double res;
1021  ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
1024  av_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
1030  res);
1031  if (res) {
1032  forced_keyframe = 1;
1038  }
1039 
1041  }
1042 
1043  if (forced_keyframe) {
1044  in_picture->pict_type = AV_PICTURE_TYPE_I;
1045  av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
1046  }
1047 
1048  update_benchmark(NULL);
1049  if (debug_ts) {
1050  av_log(NULL, AV_LOG_INFO, "encoder <- type:video "
1051  "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
1052  av_ts2str(in_picture->pts), av_ts2timestr(in_picture->pts, &enc->time_base),
1053  enc->time_base.num, enc->time_base.den);
1054  }
1055 
1056  ost->frames_encoded++;
1057 
1058  ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
1059  update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
1060  if (ret < 0) {
1061  av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1062  exit_program(1);
1063  }
1064 
1065  if (got_packet) {
1066  if (debug_ts) {
1067  av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
1068  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
1069  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &enc->time_base),
1070  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &enc->time_base));
1071  }
1072 
1073  if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
1074  pkt.pts = ost->sync_opts;
1075 
1076  av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
1077 
1078  if (debug_ts) {
1079  av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
1080  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
1081  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
1082  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
1083  }
1084 
1085  frame_size = pkt.size;
1086  write_frame(s, &pkt, ost);
1087 
1088  /* if two pass, output log */
1089  if (ost->logfile && enc->stats_out) {
1090  fprintf(ost->logfile, "%s", enc->stats_out);
1091  }
1092  }
1093  }
1094  ost->sync_opts++;
1095  /*
1096  * For video, number of frames in == number of packets out.
1097  * But there may be reordering, so we can't throw away frames on encoder
1098  * flush, we need to limit them here, before they go into encoder.
1099  */
1100  ost->frame_number++;
1101 
1102  if (vstats_filename && frame_size)
1103  do_video_stats(ost, frame_size);
1104  }
1105 }
1106 
1107 static double psnr(double d)
1108 {
1109  return -10.0 * log(d) / log(10.0);
1110 }
1111 
1113 {
1114  AVCodecContext *enc;
1115  int frame_number;
1116  double ti1, bitrate, avg_bitrate;
1117 
1118  /* this is executed just the first time do_video_stats is called */
1119  if (!vstats_file) {
1120  vstats_file = fopen(vstats_filename, "w");
1121  if (!vstats_file) {
1122  perror("fopen");
1123  exit_program(1);
1124  }
1125  }
1126 
1127  enc = ost->enc_ctx;
1128  if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1129  frame_number = ost->st->nb_frames;
1130  fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1131  if (enc->flags&CODEC_FLAG_PSNR)
1132  fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1133 
1134  fprintf(vstats_file,"f_size= %6d ", frame_size);
1135  /* compute pts value */
1136  ti1 = av_stream_get_end_pts(ost->st) * av_q2d(ost->st->time_base);
1137  if (ti1 < 0.01)
1138  ti1 = 0.01;
1139 
1140  bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1141  avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
1142  fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1143  (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
1144  fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1145  }
1146 }
1147 
1149 {
1150  OutputFile *of = output_files[ost->file_index];
1151  int i;
1152 
1154 
1155  if (of->shortest) {
1156  for (i = 0; i < of->ctx->nb_streams; i++)
1157  output_streams[of->ost_index + i]->finished = ENCODER_FINISHED | MUXER_FINISHED;
1158  }
1159 }
1160 
1161 /**
1162  * Get and encode new output from any of the filtergraphs, without causing
1163  * activity.
1164  *
1165  * @return 0 for success, <0 for severe errors
1166  */
1167 static int reap_filters(void)
1168 {
1169  AVFrame *filtered_frame = NULL;
1170  int i;
1171  int64_t frame_pts;
1172 
1173  /* Reap all buffers present in the buffer sinks */
1174  for (i = 0; i < nb_output_streams; i++) {
1175  OutputStream *ost = output_streams[i];
1176  OutputFile *of = output_files[ost->file_index];
1178  AVCodecContext *enc = ost->enc_ctx;
1179  int ret = 0;
1180 
1181  if (!ost->filter)
1182  continue;
1183  filter = ost->filter->filter;
1184 
1185  if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
1186  return AVERROR(ENOMEM);
1187  }
1188  filtered_frame = ost->filtered_frame;
1189 
1190  while (1) {
1191  ret = av_buffersink_get_frame_flags(filter, filtered_frame,
1193  if (ret < 0) {
1194  if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1195  av_log(NULL, AV_LOG_WARNING,
1196  "Error in av_buffersink_get_frame_flags(): %s\n", av_err2str(ret));
1197  }
1198  break;
1199  }
1200  if (ost->finished) {
1201  av_frame_unref(filtered_frame);
1202  continue;
1203  }
1204  frame_pts = AV_NOPTS_VALUE;
1205  if (filtered_frame->pts != AV_NOPTS_VALUE) {
1206  int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1207  filtered_frame->pts = frame_pts =
1208  av_rescale_q(filtered_frame->pts, filter->inputs[0]->time_base, enc->time_base) -
1209  av_rescale_q(start_time, AV_TIME_BASE_Q, enc->time_base);
1210  }
1211  //if (ost->source_index >= 0)
1212  // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1213 
1214  switch (filter->inputs[0]->type) {
1215  case AVMEDIA_TYPE_VIDEO:
1216  filtered_frame->pts = frame_pts;
1217  if (!ost->frame_aspect_ratio.num)
1218  enc->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
1219 
1220  if (debug_ts) {
1221  av_log(NULL, AV_LOG_INFO, "filter -> pts:%s pts_time:%s time_base:%d/%d\n",
1222  av_ts2str(filtered_frame->pts), av_ts2timestr(filtered_frame->pts, &enc->time_base),
1223  enc->time_base.num, enc->time_base.den);
1224  }
1225 
1226  do_video_out(of->ctx, ost, filtered_frame);
1227  break;
1228  case AVMEDIA_TYPE_AUDIO:
1229  filtered_frame->pts = frame_pts;
1230  if (!(enc->codec->capabilities & CODEC_CAP_PARAM_CHANGE) &&
1231  enc->channels != av_frame_get_channels(filtered_frame)) {
1232  av_log(NULL, AV_LOG_ERROR,
1233  "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
1234  break;
1235  }
1236  do_audio_out(of->ctx, ost, filtered_frame);
1237  break;
1238  default:
1239  // TODO support subtitle filters
1240  av_assert0(0);
1241  }
1242 
1243  av_frame_unref(filtered_frame);
1244  }
1245  }
1246 
1247  return 0;
1248 }
1249 
1250 static void print_final_stats(int64_t total_size)
1251 {
1252  uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
1253  uint64_t subtitle_size = 0;
1254  uint64_t data_size = 0;
1255  float percent = -1.0;
1256  int i, j;
1257 
1258  for (i = 0; i < nb_output_streams; i++) {
1259  OutputStream *ost = output_streams[i];
1260  switch (ost->enc_ctx->codec_type) {
1261  case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
1262  case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
1263  case AVMEDIA_TYPE_SUBTITLE: subtitle_size += ost->data_size; break;
1264  default: other_size += ost->data_size; break;
1265  }
1266  extra_size += ost->enc_ctx->extradata_size;
1267  data_size += ost->data_size;
1268  }
1269 
1270  if (data_size && total_size>0 && total_size >= data_size)
1271  percent = 100.0 * (total_size - data_size) / data_size;
1272 
1273  av_log(NULL, AV_LOG_INFO, "\n");
1274  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: ",
1275  video_size / 1024.0,
1276  audio_size / 1024.0,
1277  subtitle_size / 1024.0,
1278  other_size / 1024.0,
1279  extra_size / 1024.0);
1280  if (percent >= 0.0)
1281  av_log(NULL, AV_LOG_INFO, "%f%%", percent);
1282  else
1283  av_log(NULL, AV_LOG_INFO, "unknown");
1284  av_log(NULL, AV_LOG_INFO, "\n");
1285 
1286  /* print verbose per-stream stats */
1287  for (i = 0; i < nb_input_files; i++) {
1288  InputFile *f = input_files[i];
1289  uint64_t total_packets = 0, total_size = 0;
1290 
1291  av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
1292  i, f->ctx->filename);
1293 
1294  for (j = 0; j < f->nb_streams; j++) {
1295  InputStream *ist = input_streams[f->ist_index + j];
1296  enum AVMediaType type = ist->dec_ctx->codec_type;
1297 
1298  total_size += ist->data_size;
1299  total_packets += ist->nb_packets;
1300 
1301  av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
1302  i, j, media_type_string(type));
1303  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
1304  ist->nb_packets, ist->data_size);
1305 
1306  if (ist->decoding_needed) {
1307  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
1308  ist->frames_decoded);
1309  if (type == AVMEDIA_TYPE_AUDIO)
1310  av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
1311  av_log(NULL, AV_LOG_VERBOSE, "; ");
1312  }
1313 
1314  av_log(NULL, AV_LOG_VERBOSE, "\n");
1315  }
1316 
1317  av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
1318  total_packets, total_size);
1319  }
1320 
1321  for (i = 0; i < nb_output_files; i++) {
1322  OutputFile *of = output_files[i];
1323  uint64_t total_packets = 0, total_size = 0;
1324 
1325  av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
1326  i, of->ctx->filename);
1327 
1328  for (j = 0; j < of->ctx->nb_streams; j++) {
1329  OutputStream *ost = output_streams[of->ost_index + j];
1330  enum AVMediaType type = ost->enc_ctx->codec_type;
1331 
1332  total_size += ost->data_size;
1333  total_packets += ost->packets_written;
1334 
1335  av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
1336  i, j, media_type_string(type));
1337  if (ost->encoding_needed) {
1338  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
1339  ost->frames_encoded);
1340  if (type == AVMEDIA_TYPE_AUDIO)
1341  av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
1342  av_log(NULL, AV_LOG_VERBOSE, "; ");
1343  }
1344 
1345  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
1346  ost->packets_written, ost->data_size);
1347 
1348  av_log(NULL, AV_LOG_VERBOSE, "\n");
1349  }
1350 
1351  av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
1352  total_packets, total_size);
1353  }
1354  if(video_size + data_size + audio_size + subtitle_size + extra_size == 0){
1355  av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
1356  }
1357 }
1358 
1359 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1360 {
1361  char buf[1024];
1362  AVBPrint buf_script;
1363  OutputStream *ost;
1364  AVFormatContext *oc;
1365  int64_t total_size;
1366  AVCodecContext *enc;
1367  int frame_number, vid, i;
1368  double bitrate;
1369  int64_t pts = INT64_MIN;
1370  static int64_t last_time = -1;
1371  static int qp_histogram[52];
1372  int hours, mins, secs, us;
1373 
1374  if (!print_stats && !is_last_report && !progress_avio)
1375  return;
1376 
1377  if (!is_last_report) {
1378  if (last_time == -1) {
1379  last_time = cur_time;
1380  return;
1381  }
1382  if ((cur_time - last_time) < 500000)
1383  return;
1384  last_time = cur_time;
1385  }
1386 
1387 
1388  oc = output_files[0]->ctx;
1389 
1390  total_size = avio_size(oc->pb);
1391  if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
1392  total_size = avio_tell(oc->pb);
1393 
1394  buf[0] = '\0';
1395  vid = 0;
1396  av_bprint_init(&buf_script, 0, 1);
1397  for (i = 0; i < nb_output_streams; i++) {
1398  float q = -1;
1399  ost = output_streams[i];
1400  enc = ost->enc_ctx;
1401  if (!ost->stream_copy && enc->coded_frame)
1402  q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1403  if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1404  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1405  av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1406  ost->file_index, ost->index, q);
1407  }
1408  if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1409  float fps, t = (cur_time-timer_start) / 1000000.0;
1410 
1411  frame_number = ost->frame_number;
1412  fps = t > 1 ? frame_number / t : 0;
1413  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
1414  frame_number, fps < 9.95, fps, q);
1415  av_bprintf(&buf_script, "frame=%d\n", frame_number);
1416  av_bprintf(&buf_script, "fps=%.1f\n", fps);
1417  av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1418  ost->file_index, ost->index, q);
1419  if (is_last_report)
1420  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1421  if (qp_hist) {
1422  int j;
1423  int qp = lrintf(q);
1424  if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1425  qp_histogram[qp]++;
1426  for (j = 0; j < 32; j++)
1427  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
1428  }
1429  if ((enc->flags&CODEC_FLAG_PSNR) && (enc->coded_frame || is_last_report)) {
1430  int j;
1431  double error, error_sum = 0;
1432  double scale, scale_sum = 0;
1433  double p;
1434  char type[3] = { 'Y','U','V' };
1435  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1436  for (j = 0; j < 3; j++) {
1437  if (is_last_report) {
1438  error = enc->error[j];
1439  scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1440  } else {
1441  error = enc->coded_frame->error[j];
1442  scale = enc->width * enc->height * 255.0 * 255.0;
1443  }
1444  if (j)
1445  scale /= 4;
1446  error_sum += error;
1447  scale_sum += scale;
1448  p = psnr(error / scale);
1449  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
1450  av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1451  ost->file_index, ost->index, type[j] | 32, p);
1452  }
1453  p = psnr(error_sum / scale_sum);
1454  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1455  av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1456  ost->file_index, ost->index, p);
1457  }
1458  vid = 1;
1459  }
1460  /* compute min output value */
1462  pts = FFMAX(pts, av_rescale_q(av_stream_get_end_pts(ost->st),
1463  ost->st->time_base, AV_TIME_BASE_Q));
1464  }
1465 
1466  secs = pts / AV_TIME_BASE;
1467  us = pts % AV_TIME_BASE;
1468  mins = secs / 60;
1469  secs %= 60;
1470  hours = mins / 60;
1471  mins %= 60;
1472 
1473  bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
1474 
1475  if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1476  "size=N/A time=");
1477  else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1478  "size=%8.0fkB time=", total_size / 1024.0);
1479  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1480  "%02d:%02d:%02d.%02d ", hours, mins, secs,
1481  (100 * us) / AV_TIME_BASE);
1482  if (bitrate < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1483  "bitrate=N/A");
1484  else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1485  "bitrate=%6.1fkbits/s", bitrate);
1486  if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
1487  else av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1488  av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1489  av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
1490  hours, mins, secs, us);
1491 
1493  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1495  av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1496  av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1497 
1498  if (print_stats || is_last_report) {
1499  if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
1500  fprintf(stderr, "%s \r", buf);
1501  } else
1502  av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1503 
1504  fflush(stderr);
1505  }
1506 
1507  if (progress_avio) {
1508  av_bprintf(&buf_script, "progress=%s\n",
1509  is_last_report ? "end" : "continue");
1510  avio_write(progress_avio, buf_script.str,
1511  FFMIN(buf_script.len, buf_script.size - 1));
1512  avio_flush(progress_avio);
1513  av_bprint_finalize(&buf_script, NULL);
1514  if (is_last_report) {
1515  avio_close(progress_avio);
1516  progress_avio = NULL;
1517  }
1518  }
1519 
1520  if (is_last_report)
1521  print_final_stats(total_size);
1522 }
1523 
1524 static void flush_encoders(void)
1525 {
1526  int i, ret;
1527 
1528  for (i = 0; i < nb_output_streams; i++) {
1529  OutputStream *ost = output_streams[i];
1530  AVCodecContext *enc = ost->enc_ctx;
1531  AVFormatContext *os = output_files[ost->file_index]->ctx;
1532  int stop_encoding = 0;
1533 
1534  if (!ost->encoding_needed)
1535  continue;
1536 
1537  if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1538  continue;
1540  continue;
1541 
1542  for (;;) {
1543  int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1544  const char *desc;
1545 
1546  switch (enc->codec_type) {
1547  case AVMEDIA_TYPE_AUDIO:
1548  encode = avcodec_encode_audio2;
1549  desc = "Audio";
1550  break;
1551  case AVMEDIA_TYPE_VIDEO:
1552  encode = avcodec_encode_video2;
1553  desc = "Video";
1554  break;
1555  default:
1556  stop_encoding = 1;
1557  }
1558 
1559  if (encode) {
1560  AVPacket pkt;
1561  int pkt_size;
1562  int got_packet;
1563  av_init_packet(&pkt);
1564  pkt.data = NULL;
1565  pkt.size = 0;
1566 
1567  update_benchmark(NULL);
1568  ret = encode(enc, &pkt, NULL, &got_packet);
1569  update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
1570  if (ret < 0) {
1571  av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1572  exit_program(1);
1573  }
1574  if (ost->logfile && enc->stats_out) {
1575  fprintf(ost->logfile, "%s", enc->stats_out);
1576  }
1577  if (!got_packet) {
1578  stop_encoding = 1;
1579  break;
1580  }
1581  if (ost->finished & MUXER_FINISHED) {
1582  av_free_packet(&pkt);
1583  continue;
1584  }
1585  av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
1586  pkt_size = pkt.size;
1587  write_frame(os, &pkt, ost);
1589  do_video_stats(ost, pkt_size);
1590  }
1591  }
1592 
1593  if (stop_encoding)
1594  break;
1595  }
1596  }
1597 }
1598 
1599 /*
1600  * Check whether a packet from ist should be written into ost at this time
1601  */
1603 {
1604  OutputFile *of = output_files[ost->file_index];
1605  int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1606 
1607  if (ost->source_index != ist_index)
1608  return 0;
1609 
1610  if (ost->finished)
1611  return 0;
1612 
1613  if (of->start_time != AV_NOPTS_VALUE && ist->pts < of->start_time)
1614  return 0;
1615 
1616  return 1;
1617 }
1618 
1619 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1620 {
1621  OutputFile *of = output_files[ost->file_index];
1622  InputFile *f = input_files [ist->file_index];
1623  int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1624  int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1625  int64_t ist_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ist->st->time_base);
1626  AVPicture pict;
1627  AVPacket opkt;
1628 
1629  av_init_packet(&opkt);
1630 
1631  if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1633  return;
1634 
1635  if (pkt->pts == AV_NOPTS_VALUE) {
1636  if (!ost->frame_number && ist->pts < start_time &&
1637  !ost->copy_prior_start)
1638  return;
1639  } else {
1640  if (!ost->frame_number && pkt->pts < ist_tb_start_time &&
1641  !ost->copy_prior_start)
1642  return;
1643  }
1644 
1645  if (of->recording_time != INT64_MAX &&
1646  ist->pts >= of->recording_time + start_time) {
1647  close_output_stream(ost);
1648  return;
1649  }
1650 
1651  if (f->recording_time != INT64_MAX) {
1652  start_time = f->ctx->start_time;
1653  if (f->start_time != AV_NOPTS_VALUE)
1654  start_time += f->start_time;
1655  if (ist->pts >= f->recording_time + start_time) {
1656  close_output_stream(ost);
1657  return;
1658  }
1659  }
1660 
1661  /* force the input stream PTS */
1662  if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
1663  ost->sync_opts++;
1664 
1665  if (pkt->pts != AV_NOPTS_VALUE)
1666  opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1667  else
1668  opkt.pts = AV_NOPTS_VALUE;
1669 
1670  if (pkt->dts == AV_NOPTS_VALUE)
1671  opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
1672  else
1673  opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1674  opkt.dts -= ost_tb_start_time;
1675 
1676  if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
1678  if(!duration)
1679  duration = ist->dec_ctx->frame_size;
1680  opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
1682  ost->st->time_base) - ost_tb_start_time;
1683  }
1684 
1685  opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1686  opkt.flags = pkt->flags;
1687 
1688  // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1689  if ( ost->enc_ctx->codec_id != AV_CODEC_ID_H264
1690  && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG1VIDEO
1691  && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG2VIDEO
1692  && ost->enc_ctx->codec_id != AV_CODEC_ID_VC1
1693  ) {
1694  if (av_parser_change(ost->parser, ost->st->codec,
1695  &opkt.data, &opkt.size,
1696  pkt->data, pkt->size,
1697  pkt->flags & AV_PKT_FLAG_KEY)) {
1698  opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1699  if (!opkt.buf)
1700  exit_program(1);
1701  }
1702  } else {
1703  opkt.data = pkt->data;
1704  opkt.size = pkt->size;
1705  }
1706  av_copy_packet_side_data(&opkt, pkt);
1707 
1708  if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
1709  /* store AVPicture in AVPacket, as expected by the output format */
1710  avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1711  opkt.data = (uint8_t *)&pict;
1712  opkt.size = sizeof(AVPicture);
1713  opkt.flags |= AV_PKT_FLAG_KEY;
1714  }
1715 
1716  write_frame(of->ctx, &opkt, ost);
1717 }
1718 
1720 {
1721  AVCodecContext *dec = ist->dec_ctx;
1722 
1723  if (!dec->channel_layout) {
1724  char layout_name[256];
1725 
1726  if (dec->channels > ist->guess_layout_max)
1727  return 0;
1729  if (!dec->channel_layout)
1730  return 0;
1731  av_get_channel_layout_string(layout_name, sizeof(layout_name),
1732  dec->channels, dec->channel_layout);
1733  av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1734  "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1735  }
1736  return 1;
1737 }
1738 
1739 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1740 {
1741  AVFrame *decoded_frame, *f;
1742  AVCodecContext *avctx = ist->dec_ctx;
1743  int i, ret, err = 0, resample_changed;
1744  AVRational decoded_frame_tb;
1745 
1746  if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1747  return AVERROR(ENOMEM);
1748  if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1749  return AVERROR(ENOMEM);
1750  decoded_frame = ist->decoded_frame;
1751 
1752  update_benchmark(NULL);
1753  ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1754  update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
1755 
1756  if (ret >= 0 && avctx->sample_rate <= 0) {
1757  av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
1758  ret = AVERROR_INVALIDDATA;
1759  }
1760 
1761  if (*got_output || ret<0 || pkt->size)
1762  decode_error_stat[ret<0] ++;
1763 
1764  if (!*got_output || ret < 0) {
1765  if (!pkt->size) {
1766  for (i = 0; i < ist->nb_filters; i++)
1767 #if 1
1768  av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1769 #else
1770  av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1771 #endif
1772  }
1773  return ret;
1774  }
1775 
1776  ist->samples_decoded += decoded_frame->nb_samples;
1777  ist->frames_decoded++;
1778 
1779 #if 1
1780  /* increment next_dts to use for the case where the input stream does not
1781  have timestamps or there are multiple frames in the packet */
1782  ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1783  avctx->sample_rate;
1784  ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1785  avctx->sample_rate;
1786 #endif
1787 
1788  resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1789  ist->resample_channels != avctx->channels ||
1790  ist->resample_channel_layout != decoded_frame->channel_layout ||
1791  ist->resample_sample_rate != decoded_frame->sample_rate;
1792  if (resample_changed) {
1793  char layout1[64], layout2[64];
1794 
1795  if (!guess_input_channel_layout(ist)) {
1796  av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1797  "layout for Input Stream #%d.%d\n", ist->file_index,
1798  ist->st->index);
1799  exit_program(1);
1800  }
1801  decoded_frame->channel_layout = avctx->channel_layout;
1802 
1803  av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1805  av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1806  decoded_frame->channel_layout);
1807 
1808  av_log(NULL, AV_LOG_INFO,
1809  "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",
1810  ist->file_index, ist->st->index,
1812  ist->resample_channels, layout1,
1813  decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1814  avctx->channels, layout2);
1815 
1816  ist->resample_sample_fmt = decoded_frame->format;
1817  ist->resample_sample_rate = decoded_frame->sample_rate;
1818  ist->resample_channel_layout = decoded_frame->channel_layout;
1819  ist->resample_channels = avctx->channels;
1820 
1821  for (i = 0; i < nb_filtergraphs; i++)
1822  if (ist_in_filtergraph(filtergraphs[i], ist)) {
1823  FilterGraph *fg = filtergraphs[i];
1824  if (configure_filtergraph(fg) < 0) {
1825  av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1826  exit_program(1);
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);
2300  if (ist->dec_ctx->codec_id == AV_CODEC_ID_DVB_SUBTITLE &&
2301  (ist->decoding_needed & DECODING_FOR_OST)) {
2302  av_dict_set(&ist->decoder_opts, "compute_edt", "1", AV_DICT_DONT_OVERWRITE);
2304  av_log(NULL, AV_LOG_WARNING, "Warning using DVB subtitles for filtering and output at the same time is not fully supported, also see -compute_edt [0|1]\n");
2305  }
2306 
2307  if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
2308  av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
2309  if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
2310  if (ret == AVERROR_EXPERIMENTAL)
2311  abort_codec_experimental(codec, 0);
2312 
2313  snprintf(error, error_len,
2314  "Error while opening decoder for input stream "
2315  "#%d:%d : %s",
2316  ist->file_index, ist->st->index, av_err2str(ret));
2317  return ret;
2318  }
2320  }
2321 
2322  ist->next_pts = AV_NOPTS_VALUE;
2323  ist->next_dts = AV_NOPTS_VALUE;
2324 
2325  return 0;
2326 }
2327 
2329 {
2330  if (ost->source_index >= 0)
2331  return input_streams[ost->source_index];
2332  return NULL;
2333 }
2334 
2335 static int compare_int64(const void *a, const void *b)
2336 {
2337  int64_t va = *(int64_t *)a, vb = *(int64_t *)b;
2338  return va < vb ? -1 : va > vb ? +1 : 0;
2339 }
2340 
2341 static void parse_forced_key_frames(char *kf, OutputStream *ost,
2342  AVCodecContext *avctx)
2343 {
2344  char *p;
2345  int n = 1, i, size, index = 0;
2346  int64_t t, *pts;
2347 
2348  for (p = kf; *p; p++)
2349  if (*p == ',')
2350  n++;
2351  size = n;
2352  pts = av_malloc_array(size, sizeof(*pts));
2353  if (!pts) {
2354  av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2355  exit_program(1);
2356  }
2357 
2358  p = kf;
2359  for (i = 0; i < n; i++) {
2360  char *next = strchr(p, ',');
2361 
2362  if (next)
2363  *next++ = 0;
2364 
2365  if (!memcmp(p, "chapters", 8)) {
2366 
2367  AVFormatContext *avf = output_files[ost->file_index]->ctx;
2368  int j;
2369 
2370  if (avf->nb_chapters > INT_MAX - size ||
2371  !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
2372  sizeof(*pts)))) {
2373  av_log(NULL, AV_LOG_FATAL,
2374  "Could not allocate forced key frames array.\n");
2375  exit_program(1);
2376  }
2377  t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
2378  t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2379 
2380  for (j = 0; j < avf->nb_chapters; j++) {
2381  AVChapter *c = avf->chapters[j];
2382  av_assert1(index < size);
2383  pts[index++] = av_rescale_q(c->start, c->time_base,
2384  avctx->time_base) + t;
2385  }
2386 
2387  } else {
2388 
2389  t = parse_time_or_die("force_key_frames", p, 1);
2390  av_assert1(index < size);
2391  pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2392 
2393  }
2394 
2395  p = next;
2396  }
2397 
2398  av_assert0(index == size);
2399  qsort(pts, size, sizeof(*pts), compare_int64);
2400  ost->forced_kf_count = size;
2401  ost->forced_kf_pts = pts;
2402 }
2403 
2404 static void report_new_stream(int input_index, AVPacket *pkt)
2405 {
2406  InputFile *file = input_files[input_index];
2407  AVStream *st = file->ctx->streams[pkt->stream_index];
2408 
2409  if (pkt->stream_index < file->nb_streams_warn)
2410  return;
2411  av_log(file->ctx, AV_LOG_WARNING,
2412  "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
2414  input_index, pkt->stream_index,
2415  pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
2416  file->nb_streams_warn = pkt->stream_index + 1;
2417 }
2418 
2420 {
2421  AVDictionaryEntry *e;
2422 
2423  uint8_t *encoder_string;
2424  int encoder_string_len;
2425  int format_flags = 0;
2426  int codec_flags = 0;
2427 
2428  if (av_dict_get(ost->st->metadata, "encoder", NULL, 0))
2429  return;
2430 
2431  e = av_dict_get(of->opts, "fflags", NULL, 0);
2432  if (e) {
2433  const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
2434  if (!o)
2435  return;
2436  av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
2437  }
2438  e = av_dict_get(ost->encoder_opts, "flags", NULL, 0);
2439  if (e) {
2440  const AVOption *o = av_opt_find(ost->enc_ctx, "flags", NULL, 0, 0);
2441  if (!o)
2442  return;
2443  av_opt_eval_flags(ost->enc_ctx, o, e->value, &codec_flags);
2444  }
2445 
2446  encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
2447  encoder_string = av_mallocz(encoder_string_len);
2448  if (!encoder_string)
2449  exit_program(1);
2450 
2451  if (!(format_flags & AVFMT_FLAG_BITEXACT) && !(codec_flags & CODEC_FLAG_BITEXACT))
2452  av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
2453  else
2454  av_strlcpy(encoder_string, "Lavc ", encoder_string_len);
2455  av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
2456  av_dict_set(&ost->st->metadata, "encoder", encoder_string,
2458 }
2459 
2460 static int transcode_init(void)
2461 {
2462  int ret = 0, i, j, k;
2463  AVFormatContext *oc;
2464  OutputStream *ost;
2465  InputStream *ist;
2466  char error[1024];
2467  int want_sdp = 1;
2468 
2469  for (i = 0; i < nb_filtergraphs; i++) {
2470  FilterGraph *fg = filtergraphs[i];
2471  for (j = 0; j < fg->nb_outputs; j++) {
2472  OutputFilter *ofilter = fg->outputs[j];
2473  if (!ofilter->ost || ofilter->ost->source_index >= 0)
2474  continue;
2475  if (fg->nb_inputs != 1)
2476  continue;
2477  for (k = nb_input_streams-1; k >= 0 ; k--)
2478  if (fg->inputs[0]->ist == input_streams[k])
2479  break;
2480  ofilter->ost->source_index = k;
2481  }
2482  }
2483 
2484  /* init framerate emulation */
2485  for (i = 0; i < nb_input_files; i++) {
2486  InputFile *ifile = input_files[i];
2487  if (ifile->rate_emu)
2488  for (j = 0; j < ifile->nb_streams; j++)
2489  input_streams[j + ifile->ist_index]->start = av_gettime_relative();
2490  }
2491 
2492  /* output stream init */
2493  for (i = 0; i < nb_output_files; i++) {
2494  oc = output_files[i]->ctx;
2495  if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2496  av_dump_format(oc, i, oc->filename, 1);
2497  av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2498  return AVERROR(EINVAL);
2499  }
2500  }
2501 
2502  /* init complex filtergraphs */
2503  for (i = 0; i < nb_filtergraphs; i++)
2504  if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2505  return ret;
2506 
2507  /* for each output stream, we compute the right encoding parameters */
2508  for (i = 0; i < nb_output_streams; i++) {
2509  AVCodecContext *enc_ctx;
2510  AVCodecContext *dec_ctx = NULL;
2511  ost = output_streams[i];
2512  oc = output_files[ost->file_index]->ctx;
2513  ist = get_input_stream(ost);
2514 
2515  if (ost->attachment_filename)
2516  continue;
2517 
2518  enc_ctx = ost->enc_ctx;
2519 
2520  if (ist) {
2521  dec_ctx = ist->dec_ctx;
2522 
2523  ost->st->disposition = ist->st->disposition;
2524  enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
2525  enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
2526  } else {
2527  for (j=0; j<oc->nb_streams; j++) {
2528  AVStream *st = oc->streams[j];
2529  if (st != ost->st && st->codec->codec_type == enc_ctx->codec_type)
2530  break;
2531  }
2532  if (j == oc->nb_streams)
2533  if (enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO || enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
2535  }
2536 
2537  if (ost->stream_copy) {
2538  AVRational sar;
2539  uint64_t extra_size;
2540 
2541  av_assert0(ist && !ost->filter);
2542 
2543  extra_size = (uint64_t)dec_ctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2544 
2545  if (extra_size > INT_MAX) {
2546  return AVERROR(EINVAL);
2547  }
2548 
2549  /* if stream_copy is selected, no need to decode or encode */
2550  enc_ctx->codec_id = dec_ctx->codec_id;
2551  enc_ctx->codec_type = dec_ctx->codec_type;
2552 
2553  if (!enc_ctx->codec_tag) {
2554  unsigned int codec_tag;
2555  if (!oc->oformat->codec_tag ||
2556  av_codec_get_id (oc->oformat->codec_tag, dec_ctx->codec_tag) == enc_ctx->codec_id ||
2557  !av_codec_get_tag2(oc->oformat->codec_tag, dec_ctx->codec_id, &codec_tag))
2558  enc_ctx->codec_tag = dec_ctx->codec_tag;
2559  }
2560 
2561  enc_ctx->bit_rate = dec_ctx->bit_rate;
2562  enc_ctx->rc_max_rate = dec_ctx->rc_max_rate;
2563  enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size;
2564  enc_ctx->field_order = dec_ctx->field_order;
2565  enc_ctx->extradata = av_mallocz(extra_size);
2566  if (!enc_ctx->extradata) {
2567  return AVERROR(ENOMEM);
2568  }
2569  memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
2570  enc_ctx->extradata_size= dec_ctx->extradata_size;
2571  enc_ctx->bits_per_coded_sample = dec_ctx->bits_per_coded_sample;
2572 
2573  enc_ctx->time_base = ist->st->time_base;
2574  /*
2575  * Avi is a special case here because it supports variable fps but
2576  * having the fps and timebase differe significantly adds quite some
2577  * overhead
2578  */
2579  if(!strcmp(oc->oformat->name, "avi")) {
2580  if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
2581  && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
2582  && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(dec_ctx->time_base)
2583  && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(dec_ctx->time_base) < 1.0/500
2584  || copy_tb==2){
2585  enc_ctx->time_base.num = ist->st->r_frame_rate.den;
2586  enc_ctx->time_base.den = 2*ist->st->r_frame_rate.num;
2587  enc_ctx->ticks_per_frame = 2;
2588  } else if ( copy_tb<0 && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > 2*av_q2d(ist->st->time_base)
2589  && av_q2d(ist->st->time_base) < 1.0/500
2590  || copy_tb==0){
2591  enc_ctx->time_base = dec_ctx->time_base;
2592  enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
2593  enc_ctx->time_base.den *= 2;
2594  enc_ctx->ticks_per_frame = 2;
2595  }
2596  } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
2597  && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
2598  && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
2599  && strcmp(oc->oformat->name, "f4v")
2600  ) {
2601  if( copy_tb<0 && dec_ctx->time_base.den
2602  && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > av_q2d(ist->st->time_base)
2603  && av_q2d(ist->st->time_base) < 1.0/500
2604  || copy_tb==0){
2605  enc_ctx->time_base = dec_ctx->time_base;
2606  enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
2607  }
2608  }
2609  if ( enc_ctx->codec_tag == AV_RL32("tmcd")
2610  && dec_ctx->time_base.num < dec_ctx->time_base.den
2611  && dec_ctx->time_base.num > 0
2612  && 121LL*dec_ctx->time_base.num > dec_ctx->time_base.den) {
2613  enc_ctx->time_base = dec_ctx->time_base;
2614  }
2615 
2616  if (ist && !ost->frame_rate.num)
2617  ost->frame_rate = ist->framerate;
2618  if(ost->frame_rate.num)
2619  enc_ctx->time_base = av_inv_q(ost->frame_rate);
2620 
2621  av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den,
2622  enc_ctx->time_base.num, enc_ctx->time_base.den, INT_MAX);
2623 
2624  ost->parser = av_parser_init(enc_ctx->codec_id);
2625 
2626  switch (enc_ctx->codec_type) {
2627  case AVMEDIA_TYPE_AUDIO:
2628  if (audio_volume != 256) {
2629  av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2630  exit_program(1);
2631  }
2632  enc_ctx->channel_layout = dec_ctx->channel_layout;
2633  enc_ctx->sample_rate = dec_ctx->sample_rate;
2634  enc_ctx->channels = dec_ctx->channels;
2635  enc_ctx->frame_size = dec_ctx->frame_size;
2636  enc_ctx->audio_service_type = dec_ctx->audio_service_type;
2637  enc_ctx->block_align = dec_ctx->block_align;
2638  enc_ctx->delay = dec_ctx->delay;
2639  if((enc_ctx->block_align == 1 || enc_ctx->block_align == 1152 || enc_ctx->block_align == 576) && enc_ctx->codec_id == AV_CODEC_ID_MP3)
2640  enc_ctx->block_align= 0;
2641  if(enc_ctx->codec_id == AV_CODEC_ID_AC3)
2642  enc_ctx->block_align= 0;
2643  break;
2644  case AVMEDIA_TYPE_VIDEO:
2645  enc_ctx->pix_fmt = dec_ctx->pix_fmt;
2646  enc_ctx->width = dec_ctx->width;
2647  enc_ctx->height = dec_ctx->height;
2648  enc_ctx->has_b_frames = dec_ctx->has_b_frames;
2649  if (ost->frame_aspect_ratio.num) { // overridden by the -aspect cli option
2650  sar =
2652  (AVRational){ enc_ctx->height, enc_ctx->width });
2653  av_log(NULL, AV_LOG_WARNING, "Overriding aspect ratio "
2654  "with stream copy may produce invalid files\n");
2655  }
2656  else if (ist->st->sample_aspect_ratio.num)
2657  sar = ist->st->sample_aspect_ratio;
2658  else
2659  sar = dec_ctx->sample_aspect_ratio;
2660  ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio = sar;
2661  ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2662  break;
2663  case AVMEDIA_TYPE_SUBTITLE:
2664  enc_ctx->width = dec_ctx->width;
2665  enc_ctx->height = dec_ctx->height;
2666  break;
2667  case AVMEDIA_TYPE_DATA:
2669  break;
2670  default:
2671  abort();
2672  }
2673  } else {
2674  if (!ost->enc)
2675  ost->enc = avcodec_find_encoder(enc_ctx->codec_id);
2676  if (!ost->enc) {
2677  /* should only happen when a default codec is not present. */
2678  snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2679  avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2680  ret = AVERROR(EINVAL);
2681  goto dump_format;
2682  }
2683 
2684  if (ist)
2686  ost->encoding_needed = 1;
2687 
2688  set_encoder_id(output_files[ost->file_index], ost);
2689 
2690  if (!ost->filter &&
2691  (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
2692  enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO)) {
2693  FilterGraph *fg;
2694  fg = init_simple_filtergraph(ist, ost);
2695  if (configure_filtergraph(fg)) {
2696  av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2697  exit_program(1);
2698  }
2699  }
2700 
2701  if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
2702  if (ost->filter && !ost->frame_rate.num)
2704  if (ist && !ost->frame_rate.num)
2705  ost->frame_rate = ist->framerate;
2706  if (ist && !ost->frame_rate.num)
2707  ost->frame_rate = ist->st->r_frame_rate;
2708  if (ist && !ost->frame_rate.num) {
2709  ost->frame_rate = (AVRational){25, 1};
2710  av_log(NULL, AV_LOG_WARNING,
2711  "No information "
2712  "about the input framerate is available. Falling "
2713  "back to a default value of 25fps for output stream #%d:%d. Use the -r option "
2714  "if you want a different framerate.\n",
2715  ost->file_index, ost->index);
2716  }
2717 // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2718  if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2720  ost->frame_rate = ost->enc->supported_framerates[idx];
2721  }
2722  if (enc_ctx->codec_id == AV_CODEC_ID_MPEG4) {
2723  av_reduce(&ost->frame_rate.num, &ost->frame_rate.den,
2724  ost->frame_rate.num, ost->frame_rate.den, 65535);
2725  }
2726  }
2727 
2728  switch (enc_ctx->codec_type) {
2729  case AVMEDIA_TYPE_AUDIO:
2730  enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format;
2731  enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2732  enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2733  enc_ctx->channels = avfilter_link_get_channels(ost->filter->filter->inputs[0]);
2734  enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
2735  break;
2736  case AVMEDIA_TYPE_VIDEO:
2737  enc_ctx->time_base = av_inv_q(ost->frame_rate);
2738  if (ost->filter && !(enc_ctx->time_base.num && enc_ctx->time_base.den))
2739  enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
2740  if ( av_q2d(enc_ctx->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
2742  av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
2743  "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
2744  }
2745  for (j = 0; j < ost->forced_kf_count; j++)
2746  ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2748  enc_ctx->time_base);
2749 
2750  enc_ctx->width = ost->filter->filter->inputs[0]->w;
2751  enc_ctx->height = ost->filter->filter->inputs[0]->h;
2752  enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2753  ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option
2754  av_mul_q(ost->frame_aspect_ratio, (AVRational){ enc_ctx->height, enc_ctx->width }) :
2756  if (!strncmp(ost->enc->name, "libx264", 7) &&
2757  enc_ctx->pix_fmt == AV_PIX_FMT_NONE &&
2759  av_log(NULL, AV_LOG_WARNING,
2760  "No pixel format specified, %s for H.264 encoding chosen.\n"
2761  "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2763  if (!strncmp(ost->enc->name, "mpeg2video", 10) &&
2764  enc_ctx->pix_fmt == AV_PIX_FMT_NONE &&
2766  av_log(NULL, AV_LOG_WARNING,
2767  "No pixel format specified, %s for MPEG-2 encoding chosen.\n"
2768  "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2770  enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
2771 
2772  ost->st->avg_frame_rate = ost->frame_rate;
2773 
2774  if (!dec_ctx ||
2775  enc_ctx->width != dec_ctx->width ||
2776  enc_ctx->height != dec_ctx->height ||
2777  enc_ctx->pix_fmt != dec_ctx->pix_fmt) {
2778  enc_ctx->bits_per_raw_sample = frame_bits_per_raw_sample;
2779  }
2780 
2781  if (ost->forced_keyframes) {
2782  if (!strncmp(ost->forced_keyframes, "expr:", 5)) {
2784  forced_keyframes_const_names, NULL, NULL, NULL, NULL, 0, NULL);
2785  if (ret < 0) {
2786  av_log(NULL, AV_LOG_ERROR,
2787  "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5);
2788  return ret;
2789  }
2794  } else {
2796  }
2797  }
2798  break;
2799  case AVMEDIA_TYPE_SUBTITLE:
2800  enc_ctx->time_base = (AVRational){1, 1000};
2801  if (!enc_ctx->width) {
2802  enc_ctx->width = input_streams[ost->source_index]->st->codec->width;
2803  enc_ctx->height = input_streams[ost->source_index]->st->codec->height;
2804  }
2805  break;
2806  default:
2807  abort();
2808  break;
2809  }
2810  /* two pass mode */
2811  if (enc_ctx->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
2812  char logfilename[1024];
2813  FILE *f;
2814 
2815  snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2816  ost->logfile_prefix ? ost->logfile_prefix :
2818  i);
2819  if (!strcmp(ost->enc->name, "libx264")) {
2820  av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2821  } else {
2822  if (enc_ctx->flags & CODEC_FLAG_PASS2) {
2823  char *logbuffer;
2824  size_t logbuffer_size;
2825  if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2826  av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2827  logfilename);
2828  exit_program(1);
2829  }
2830  enc_ctx->stats_in = logbuffer;
2831  }
2832  if (enc_ctx->flags & CODEC_FLAG_PASS1) {
2833  f = av_fopen_utf8(logfilename, "wb");
2834  if (!f) {
2835  av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2836  logfilename, strerror(errno));
2837  exit_program(1);
2838  }
2839  ost->logfile = f;
2840  }
2841  }
2842  }
2843  }
2844  }
2845 
2846  /* open each encoder */
2847  for (i = 0; i < nb_output_streams; i++) {
2848  ost = output_streams[i];
2849  if (ost->encoding_needed) {
2850  AVCodec *codec = ost->enc;
2851  AVCodecContext *dec = NULL;
2852 
2853  if ((ist = get_input_stream(ost)))
2854  dec = ist->dec_ctx;
2855  if (dec && dec->subtitle_header) {
2856  /* ASS code assumes this buffer is null terminated so add extra byte. */
2857  ost->enc_ctx->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
2858  if (!ost->enc_ctx->subtitle_header) {
2859  ret = AVERROR(ENOMEM);
2860  goto dump_format;
2861  }
2862  memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2863  ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
2864  }
2865  if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
2866  av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
2867  av_dict_set(&ost->encoder_opts, "side_data_only_packets", "1", 0);
2868 
2869  if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
2870  if (ret == AVERROR_EXPERIMENTAL)
2871  abort_codec_experimental(codec, 1);
2872  snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2873  ost->file_index, ost->index);
2874  goto dump_format;
2875  }
2876  if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
2877  !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
2878  av_buffersink_set_frame_size(ost->filter->filter,
2879  ost->enc_ctx->frame_size);
2880  assert_avoptions(ost->encoder_opts);
2881  if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000)
2882  av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2883  " It takes bits/s as argument, not kbits/s\n");
2884  } else {
2885  if (av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts) < 0) {
2886  av_log(NULL, AV_LOG_FATAL,
2887  "Error setting up codec context options.\n");
2888  exit_program(1);
2889  }
2890  }
2891 
2892  ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx);
2893  if (ret < 0) {
2894  av_log(NULL, AV_LOG_FATAL,
2895  "Error initializing the output stream codec context.\n");
2896  exit_program(1);
2897  }
2898  ost->st->codec->codec= ost->enc_ctx->codec;
2899 
2900  // copy timebase while removing common factors
2901  ost->st->time_base = av_add_q(ost->enc_ctx->time_base, (AVRational){0, 1});
2902  }
2903 
2904  /* init input streams */
2905  for (i = 0; i < nb_input_streams; i++)
2906  if ((ret = init_input_stream(i, error, sizeof(error))) < 0) {
2907  for (i = 0; i < nb_output_streams; i++) {
2908  ost = output_streams[i];
2909  avcodec_close(ost->enc_ctx);
2910  }
2911  goto dump_format;
2912  }
2913 
2914  /* discard unused programs */
2915  for (i = 0; i < nb_input_files; i++) {
2916  InputFile *ifile = input_files[i];
2917  for (j = 0; j < ifile->ctx->nb_programs; j++) {
2918  AVProgram *p = ifile->ctx->programs[j];
2919  int discard = AVDISCARD_ALL;
2920 
2921  for (k = 0; k < p->nb_stream_indexes; k++)
2922  if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2923  discard = AVDISCARD_DEFAULT;
2924  break;
2925  }
2926  p->discard = discard;
2927  }
2928  }
2929 
2930  /* open files and write file headers */
2931  for (i = 0; i < nb_output_files; i++) {
2932  oc = output_files[i]->ctx;
2933  oc->interrupt_callback = int_cb;
2934  if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2935  snprintf(error, sizeof(error),
2936  "Could not write header for output file #%d "
2937  "(incorrect codec parameters ?): %s",
2938  i, av_err2str(ret));
2939  ret = AVERROR(EINVAL);
2940  goto dump_format;
2941  }
2942 // assert_avoptions(output_files[i]->opts);
2943  if (strcmp(oc->oformat->name, "rtp")) {
2944  want_sdp = 0;
2945  }
2946  }
2947 
2948  dump_format:
2949  /* dump the file output parameters - cannot be done before in case
2950  of stream copy */
2951  for (i = 0; i < nb_output_files; i++) {
2952  av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2953  }
2954 
2955  /* dump the stream mapping */
2956  av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2957  for (i = 0; i < nb_input_streams; i++) {
2958  ist = input_streams[i];
2959 
2960  for (j = 0; j < ist->nb_filters; j++) {
2961  if (ist->filters[j]->graph->graph_desc) {
2962  av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2963  ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2964  ist->filters[j]->name);
2965  if (nb_filtergraphs > 1)
2966  av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2967  av_log(NULL, AV_LOG_INFO, "\n");
2968  }
2969  }
2970  }
2971 
2972  for (i = 0; i < nb_output_streams; i++) {
2973  ost = output_streams[i];
2974 
2975  if (ost->attachment_filename) {
2976  /* an attached file */
2977  av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2978  ost->attachment_filename, ost->file_index, ost->index);
2979  continue;
2980  }
2981 
2982  if (ost->filter && ost->filter->graph->graph_desc) {
2983  /* output from a complex graph */
2984  av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2985  if (nb_filtergraphs > 1)
2986  av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2987 
2988  av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2989  ost->index, ost->enc ? ost->enc->name : "?");
2990  continue;
2991  }
2992 
2993  av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2994  input_streams[ost->source_index]->file_index,
2995  input_streams[ost->source_index]->st->index,
2996  ost->file_index,
2997  ost->index);
2998  if (ost->sync_ist != input_streams[ost->source_index])
2999  av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
3000  ost->sync_ist->file_index,
3001  ost->sync_ist->st->index);
3002  if (ost->stream_copy)
3003  av_log(NULL, AV_LOG_INFO, " (copy)");
3004  else {
3005  const AVCodec *in_codec = input_streams[ost->source_index]->dec;
3006  const AVCodec *out_codec = ost->enc;
3007  const char *decoder_name = "?";
3008  const char *in_codec_name = "?";
3009  const char *encoder_name = "?";
3010  const char *out_codec_name = "?";
3011 
3012  if (in_codec) {
3013  decoder_name = in_codec->name;
3014  in_codec_name = avcodec_descriptor_get(in_codec->id)->name;
3015  if (!strcmp(decoder_name, in_codec_name))
3016  decoder_name = "native";
3017  }
3018 
3019  if (out_codec) {
3020  encoder_name = out_codec->name;
3021  out_codec_name = avcodec_descriptor_get(out_codec->id)->name;
3022  if (!strcmp(encoder_name, out_codec_name))
3023  encoder_name = "native";
3024  }
3025 
3026  av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
3027  in_codec_name, decoder_name,
3028  out_codec_name, encoder_name);
3029  }
3030  av_log(NULL, AV_LOG_INFO, "\n");
3031  }
3032 
3033  if (ret) {
3034  av_log(NULL, AV_LOG_ERROR, "%s\n", error);
3035  return ret;
3036  }
3037 
3038  if (want_sdp) {
3039  print_sdp();
3040  }
3041 
3042  transcode_init_done = 1;
3043 
3044  return 0;
3045 }
3046 
3047 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
3048 static int need_output(void)
3049 {
3050  int i;
3051 
3052  for (i = 0; i < nb_output_streams; i++) {
3053  OutputStream *ost = output_streams[i];
3054  OutputFile *of = output_files[ost->file_index];
3055  AVFormatContext *os = output_files[ost->file_index]->ctx;
3056 
3057  if (ost->finished ||
3058  (os->pb && avio_tell(os->pb) >= of->limit_filesize))
3059  continue;
3060  if (ost->frame_number >= ost->max_frames) {
3061  int j;
3062  for (j = 0; j < of->ctx->nb_streams; j++)
3063  close_output_stream(output_streams[of->ost_index + j]);
3064  continue;
3065  }
3066 
3067  return 1;
3068  }
3069 
3070  return 0;
3071 }
3072 
3073 /**
3074  * Select the output stream to process.
3075  *
3076  * @return selected output stream, or NULL if none available
3077  */
3079 {
3080  int i;
3081  int64_t opts_min = INT64_MAX;
3082  OutputStream *ost_min = NULL;
3083 
3084  for (i = 0; i < nb_output_streams; i++) {
3085  OutputStream *ost = output_streams[i];
3086  int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
3087  AV_TIME_BASE_Q);
3088  if (!ost->unavailable && !ost->finished && opts < opts_min) {
3089  opts_min = opts;
3090  ost_min = ost;
3091  }
3092  }
3093  return ost_min;
3094 }
3095 
3097 {
3098  int i, ret, key;
3099  static int64_t last_time;
3100  if (received_nb_signals)
3101  return AVERROR_EXIT;
3102  /* read_key() returns 0 on EOF */
3103  if(cur_time - last_time >= 100000 && !run_as_daemon){
3104  key = read_key();
3105  last_time = cur_time;
3106  }else
3107  key = -1;
3108  if (key == 'q')
3109  return AVERROR_EXIT;
3110  if (key == '+') av_log_set_level(av_log_get_level()+10);
3111  if (key == '-') av_log_set_level(av_log_get_level()-10);
3112  if (key == 's') qp_hist ^= 1;
3113  if (key == 'h'){
3114  if (do_hex_dump){
3115  do_hex_dump = do_pkt_dump = 0;
3116  } else if(do_pkt_dump){
3117  do_hex_dump = 1;
3118  } else
3119  do_pkt_dump = 1;
3121  }
3122  if (key == 'c' || key == 'C'){
3123  char buf[4096], target[64], command[256], arg[256] = {0};
3124  double time;
3125  int k, n = 0;
3126  fprintf(stderr, "\nEnter command: <target>|all <time>|-1 <command>[ <argument>]\n");
3127  i = 0;
3128  while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
3129  if (k > 0)
3130  buf[i++] = k;
3131  buf[i] = 0;
3132  if (k > 0 &&
3133  (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
3134  av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
3135  target, time, command, arg);
3136  for (i = 0; i < nb_filtergraphs; i++) {
3137  FilterGraph *fg = filtergraphs[i];
3138  if (fg->graph) {
3139  if (time < 0) {
3140  ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
3141  key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
3142  fprintf(stderr, "Command reply for stream %d: ret:%d res:\n%s", i, ret, buf);
3143  } else if (key == 'c') {
3144  fprintf(stderr, "Queing commands only on filters supporting the specific command is unsupported\n");
3145  ret = AVERROR_PATCHWELCOME;
3146  } else {
3147  ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
3148  }
3149  }
3150  }
3151  } else {
3152  av_log(NULL, AV_LOG_ERROR,
3153  "Parse error, at least 3 arguments were expected, "
3154  "only %d given in string '%s'\n", n, buf);
3155  }
3156  }
3157  if (key == 'd' || key == 'D'){
3158  int debug=0;
3159  if(key == 'D') {
3160  debug = input_streams[0]->st->codec->debug<<1;
3161  if(!debug) debug = 1;
3162  while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
3163  debug += debug;
3164  }else
3165  if(scanf("%d", &debug)!=1)
3166  fprintf(stderr,"error parsing debug value\n");
3167  for(i=0;i<nb_input_streams;i++) {
3168  input_streams[i]->st->codec->debug = debug;
3169  }
3170  for(i=0;i<nb_output_streams;i++) {
3171  OutputStream *ost = output_streams[i];
3172  ost->enc_ctx->debug = debug;
3173  }
3174  if(debug) av_log_set_level(AV_LOG_DEBUG);
3175  fprintf(stderr,"debug=%d\n", debug);
3176  }
3177  if (key == '?'){
3178  fprintf(stderr, "key function\n"
3179  "? show this help\n"
3180  "+ increase verbosity\n"
3181  "- decrease verbosity\n"
3182  "c Send command to first matching filter supporting it\n"
3183  "C Send/Que command to all matching filters\n"
3184  "D cycle through available debug modes\n"
3185  "h dump packets/hex press to cycle through the 3 states\n"
3186  "q quit\n"
3187  "s Show QP histogram\n"
3188  );
3189  }
3190  return 0;
3191 }
3192 
3193 #if HAVE_PTHREADS
3194 static void *input_thread(void *arg)
3195 {
3196  InputFile *f = arg;
3197  int ret = 0;
3198 
3199  while (1) {
3200  AVPacket pkt;
3201  ret = av_read_frame(f->ctx, &pkt);
3202 
3203  if (ret == AVERROR(EAGAIN)) {
3204  av_usleep(10000);
3205  continue;
3206  }
3207  if (ret < 0) {
3208  av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
3209  break;
3210  }
3211  av_dup_packet(&pkt);
3212  ret = av_thread_message_queue_send(f->in_thread_queue, &pkt, 0);
3213  if (ret < 0) {
3214  if (ret != AVERROR_EOF)
3215  av_log(f->ctx, AV_LOG_ERROR,
3216  "Unable to send packet to main thread: %s\n",
3217  av_err2str(ret));
3218  av_free_packet(&pkt);
3219  av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
3220  break;
3221  }
3222  }
3223 
3224  return NULL;
3225 }
3226 
3227 static void free_input_threads(void)
3228 {
3229  int i;
3230 
3231  for (i = 0; i < nb_input_files; i++) {
3232  InputFile *f = input_files[i];
3233  AVPacket pkt;
3234 
3235  if (!f->in_thread_queue)
3236  continue;
3238  while (av_thread_message_queue_recv(f->in_thread_queue, &pkt, 0) >= 0)
3239  av_free_packet(&pkt);
3240 
3241  pthread_join(f->thread, NULL);
3242  f->joined = 1;
3243  av_thread_message_queue_free(&f->in_thread_queue);
3244  }
3245 }
3246 
3247 static int init_input_threads(void)
3248 {
3249  int i, ret;
3250 
3251  if (nb_input_files == 1)
3252  return 0;
3253 
3254  for (i = 0; i < nb_input_files; i++) {
3255  InputFile *f = input_files[i];
3256 
3257  if (f->ctx->pb ? !f->ctx->pb->seekable :
3258  strcmp(f->ctx->iformat->name, "lavfi"))
3259  f->non_blocking = 1;
3260  ret = av_thread_message_queue_alloc(&f->in_thread_queue,
3261  8, sizeof(AVPacket));
3262  if (ret < 0)
3263  return ret;
3264 
3265  if ((ret = pthread_create(&f->thread, NULL, input_thread, f))) {
3266  av_log(NULL, AV_LOG_ERROR, "pthread_create failed: %s. Try to increase `ulimit -v` or decrease `ulimit -s`.\n", strerror(ret));
3267  av_thread_message_queue_free(&f->in_thread_queue);
3268  return AVERROR(ret);
3269  }
3270  }
3271  return 0;
3272 }
3273 
3274 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
3275 {
3276  return av_thread_message_queue_recv(f->in_thread_queue, pkt,
3277  f->non_blocking ?
3279 }
3280 #endif
3281 
3283 {
3284  if (f->rate_emu) {
3285  int i;
3286  for (i = 0; i < f->nb_streams; i++) {
3287  InputStream *ist = input_streams[f->ist_index + i];
3288  int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
3289  int64_t now = av_gettime_relative() - ist->start;
3290  if (pts > now)
3291  return AVERROR(EAGAIN);
3292  }
3293  }
3294 
3295 #if HAVE_PTHREADS
3296  if (nb_input_files > 1)
3297  return get_input_packet_mt(f, pkt);
3298 #endif
3299  return av_read_frame(f->ctx, pkt);
3300 }
3301 
3302 static int got_eagain(void)
3303 {
3304  int i;
3305  for (i = 0; i < nb_output_streams; i++)
3306  if (output_streams[i]->unavailable)
3307  return 1;
3308  return 0;
3309 }
3310 
3311 static void reset_eagain(void)
3312 {
3313  int i;
3314  for (i = 0; i < nb_input_files; i++)
3315  input_files[i]->eagain = 0;
3316  for (i = 0; i < nb_output_streams; i++)
3317  output_streams[i]->unavailable = 0;
3318 }
3319 
3320 /*
3321  * Return
3322  * - 0 -- one packet was read and processed
3323  * - AVERROR(EAGAIN) -- no packets were available for selected file,
3324  * this function should be called again
3325  * - AVERROR_EOF -- this function should not be called again
3326  */
3327 static int process_input(int file_index)
3328 {
3329  InputFile *ifile = input_files[file_index];
3330  AVFormatContext *is;
3331  InputStream *ist;
3332  AVPacket pkt;
3333  int ret, i, j;
3334 
3335  is = ifile->ctx;
3336  ret = get_input_packet(ifile, &pkt);
3337 
3338  if (ret == AVERROR(EAGAIN)) {
3339  ifile->eagain = 1;
3340  return ret;
3341  }
3342  if (ret < 0) {
3343  if (ret != AVERROR_EOF) {
3344  print_error(is->filename, ret);
3345  if (exit_on_error)
3346  exit_program(1);
3347  }
3348 
3349  for (i = 0; i < ifile->nb_streams; i++) {
3350  ist = input_streams[ifile->ist_index + i];
3351  if (ist->decoding_needed) {
3352  ret = process_input_packet(ist, NULL);
3353  if (ret>0)
3354  return 0;
3355  }
3356 
3357  /* mark all outputs that don't go through lavfi as finished */
3358  for (j = 0; j < nb_output_streams; j++) {
3359  OutputStream *ost = output_streams[j];
3360 
3361  if (ost->source_index == ifile->ist_index + i &&
3362  (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
3363  finish_output_stream(ost);
3364  }
3365  }
3366 
3367  ifile->eof_reached = 1;
3368  return AVERROR(EAGAIN);
3369  }
3370 
3371  reset_eagain();
3372 
3373  if (do_pkt_dump) {
3375  is->streams[pkt.stream_index]);
3376  }
3377  /* the following test is needed in case new streams appear
3378  dynamically in stream : we ignore them */
3379  if (pkt.stream_index >= ifile->nb_streams) {
3380  report_new_stream(file_index, &pkt);
3381  goto discard_packet;
3382  }
3383 
3384  ist = input_streams[ifile->ist_index + pkt.stream_index];
3385 
3386  ist->data_size += pkt.size;
3387  ist->nb_packets++;
3388 
3389  if (ist->discard)
3390  goto discard_packet;
3391 
3392  if (debug_ts) {
3393  av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
3394  "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",
3398  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3399  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3400  av_ts2str(input_files[ist->file_index]->ts_offset),
3401  av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3402  }
3403 
3404  if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
3405  int64_t stime, stime2;
3406  // Correcting starttime based on the enabled streams
3407  // 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.
3408  // so we instead do it here as part of discontinuity handling
3409  if ( ist->next_dts == AV_NOPTS_VALUE
3410  && ifile->ts_offset == -is->start_time
3411  && (is->iformat->flags & AVFMT_TS_DISCONT)) {
3412  int64_t new_start_time = INT64_MAX;
3413  for (i=0; i<is->nb_streams; i++) {
3414  AVStream *st = is->streams[i];
3415  if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
3416  continue;
3417  new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
3418  }
3419  if (new_start_time > is->start_time) {
3420  av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
3421  ifile->ts_offset = -new_start_time;
3422  }
3423  }
3424 
3425  stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
3426  stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
3427  ist->wrap_correction_done = 1;
3428 
3429  if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
3430  pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
3431  ist->wrap_correction_done = 0;
3432  }
3433  if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
3434  pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
3435  ist->wrap_correction_done = 0;
3436  }
3437  }
3438 
3439  /* add the stream-global side data to the first packet */
3440  if (ist->nb_packets == 1) {
3441  if (ist->st->nb_side_data)
3443  for (i = 0; i < ist->st->nb_side_data; i++) {
3444  AVPacketSideData *src_sd = &ist->st->side_data[i];
3445  uint8_t *dst_data;
3446 
3447  if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
3448  continue;
3449 
3450  dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
3451  if (!dst_data)
3452  exit_program(1);
3453 
3454  memcpy(dst_data, src_sd->data, src_sd->size);
3455  }
3456  }
3457 
3458  if (pkt.dts != AV_NOPTS_VALUE)
3459  pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3460  if (pkt.pts != AV_NOPTS_VALUE)
3461  pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3462 
3463  if (pkt.pts != AV_NOPTS_VALUE)
3464  pkt.pts *= ist->ts_scale;
3465  if (pkt.dts != AV_NOPTS_VALUE)
3466  pkt.dts *= ist->ts_scale;
3467 
3468  if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts == AV_NOPTS_VALUE && !copy_ts
3469  && (is->iformat->flags & AVFMT_TS_DISCONT) && ifile->last_ts != AV_NOPTS_VALUE) {
3470  int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3471  int64_t delta = pkt_dts - ifile->last_ts;
3472  if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3473  (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
3475  ifile->ts_offset -= delta;
3476  av_log(NULL, AV_LOG_DEBUG,
3477  "Inter stream timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3478  delta, ifile->ts_offset);
3479  pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3480  if (pkt.pts != AV_NOPTS_VALUE)
3481  pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3482  }
3483  }
3484 
3485  if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
3486  !copy_ts) {
3487  int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3488  int64_t delta = pkt_dts - ist->next_dts;
3489  if (is->iformat->flags & AVFMT_TS_DISCONT) {
3490  if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3491  (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
3493  pkt_dts + AV_TIME_BASE/10 < FFMAX(ist->pts, ist->dts)) {
3494  ifile->ts_offset -= delta;
3495  av_log(NULL, AV_LOG_DEBUG,
3496  "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3497  delta, ifile->ts_offset);
3498  pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3499  if (pkt.pts != AV_NOPTS_VALUE)
3500  pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3501  }
3502  } else {
3503  if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3505  av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
3506  pkt.dts = AV_NOPTS_VALUE;
3507  }
3508  if (pkt.pts != AV_NOPTS_VALUE){
3509  int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
3510  delta = pkt_pts - ist->next_dts;
3511  if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3513  av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
3514  pkt.pts = AV_NOPTS_VALUE;
3515  }
3516  }
3517  }
3518  }
3519 
3520  if (pkt.dts != AV_NOPTS_VALUE)
3521  ifile->last_ts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3522 
3523  if (debug_ts) {
3524  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",
3526  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3527  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3528  av_ts2str(input_files[ist->file_index]->ts_offset),
3529  av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3530  }
3531 
3532  sub2video_heartbeat(ist, pkt.pts);
3533 
3534  ret = process_input_packet(ist, &pkt);
3535  if (ret < 0) {
3536  av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
3537  ist->file_index, ist->st->index, av_err2str(ret));
3538  if (exit_on_error)
3539  exit_program(1);
3540  }
3541 
3542 discard_packet:
3543  av_free_packet(&pkt);
3544 
3545  return 0;
3546 }
3547 
3548 /**
3549  * Perform a step of transcoding for the specified filter graph.
3550  *
3551  * @param[in] graph filter graph to consider
3552  * @param[out] best_ist input stream where a frame would allow to continue
3553  * @return 0 for success, <0 for error
3554  */
3555 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
3556 {
3557  int i, ret;
3558  int nb_requests, nb_requests_max = 0;
3559  InputFilter *ifilter;
3560  InputStream *ist;
3561 
3562  *best_ist = NULL;
3563  ret = avfilter_graph_request_oldest(graph->graph);
3564  if (ret >= 0)
3565  return reap_filters();
3566 
3567  if (ret == AVERROR_EOF) {
3568  ret = reap_filters();
3569  for (i = 0; i < graph->nb_outputs; i++)
3570  close_output_stream(graph->outputs[i]->ost);
3571  return ret;
3572  }
3573  if (ret != AVERROR(EAGAIN))
3574  return ret;
3575 
3576  for (i = 0; i < graph->nb_inputs; i++) {
3577  ifilter = graph->inputs[i];
3578  ist = ifilter->ist;
3579  if (input_files[ist->file_index]->eagain ||
3580  input_files[ist->file_index]->eof_reached)
3581  continue;
3582  nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
3583  if (nb_requests > nb_requests_max) {
3584  nb_requests_max = nb_requests;
3585  *best_ist = ist;
3586  }
3587  }
3588 
3589  if (!*best_ist)
3590  for (i = 0; i < graph->nb_outputs; i++)
3591  graph->outputs[i]->ost->unavailable = 1;
3592 
3593  return 0;
3594 }
3595 
3596 /**
3597  * Run a single step of transcoding.
3598  *
3599  * @return 0 for success, <0 for error
3600  */
3601 static int transcode_step(void)
3602 {
3603  OutputStream *ost;
3604  InputStream *ist;
3605  int ret;
3606 
3607  ost = choose_output();
3608  if (!ost) {
3609  if (got_eagain()) {
3610  reset_eagain();
3611  av_usleep(10000);
3612  return 0;
3613  }
3614  av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
3615  return AVERROR_EOF;
3616  }
3617 
3618  if (ost->filter) {
3619  if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
3620  return ret;
3621  if (!ist)
3622  return 0;
3623  } else {
3624  av_assert0(ost->source_index >= 0);
3625  ist = input_streams[ost->source_index];
3626  }
3627 
3628  ret = process_input(ist->file_index);
3629  if (ret == AVERROR(EAGAIN)) {
3630  if (input_files[ist->file_index]->eagain)
3631  ost->unavailable = 1;
3632  return 0;
3633  }
3634  if (ret < 0)
3635  return ret == AVERROR_EOF ? 0 : ret;
3636 
3637  return reap_filters();
3638 }
3639 
3640 /*
3641  * The following code is the main loop of the file converter
3642  */
3643 static int transcode(void)
3644 {
3645  int ret, i;
3646  AVFormatContext *os;
3647  OutputStream *ost;
3648  InputStream *ist;
3649  int64_t timer_start;
3650 
3651  ret = transcode_init();
3652  if (ret < 0)
3653  goto fail;
3654 
3655  if (stdin_interaction) {
3656  av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
3657  }
3658 
3659  timer_start = av_gettime_relative();
3660 
3661 #if HAVE_PTHREADS
3662  if ((ret = init_input_threads()) < 0)
3663  goto fail;
3664 #endif
3665 
3666  while (!received_sigterm) {
3667  int64_t cur_time= av_gettime_relative();
3668 
3669  /* if 'q' pressed, exits */
3670  if (stdin_interaction)
3671  if (check_keyboard_interaction(cur_time) < 0)
3672  break;
3673 
3674  /* check if there's any stream where output is still needed */
3675  if (!need_output()) {
3676  av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3677  break;
3678  }
3679 
3680  ret = transcode_step();
3681  if (ret < 0) {
3682  if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
3683  continue;
3684 
3685  av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
3686  break;
3687  }
3688 
3689  /* dump report by using the output first video and audio streams */
3690  print_report(0, timer_start, cur_time);
3691  }
3692 #if HAVE_PTHREADS
3694 #endif
3695 
3696  /* at the end of stream, we must flush the decoder buffers */
3697  for (i = 0; i < nb_input_streams; i++) {
3698  ist = input_streams[i];
3699  if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
3700  process_input_packet(ist, NULL);
3701  }
3702  }
3703  flush_encoders();
3704 
3705  term_exit();
3706 
3707  /* write the trailer if needed and close file */
3708  for (i = 0; i < nb_output_files; i++) {
3709  os = output_files[i]->ctx;
3710  av_write_trailer(os);
3711  }
3712 
3713  /* dump report by using the first video and audio streams */
3714  print_report(1, timer_start, av_gettime_relative());
3715 
3716  /* close each encoder */
3717  for (i = 0; i < nb_output_streams; i++) {
3718  ost = output_streams[i];
3719  if (ost->encoding_needed) {
3720  av_freep(&ost->enc_ctx->stats_in);
3721  }
3722  }
3723 
3724  /* close each decoder */
3725  for (i = 0; i < nb_input_streams; i++) {
3726  ist = input_streams[i];
3727  if (ist->decoding_needed) {
3728  avcodec_close(ist->dec_ctx);
3729  if (ist->hwaccel_uninit)
3730  ist->hwaccel_uninit(ist->dec_ctx);
3731  }
3732  }
3733 
3734  /* finished ! */
3735  ret = 0;
3736 
3737  fail:
3738 #if HAVE_PTHREADS
3740 #endif
3741 
3742  if (output_streams) {
3743  for (i = 0; i < nb_output_streams; i++) {
3744  ost = output_streams[i];
3745  if (ost) {
3746  if (ost->logfile) {
3747  fclose(ost->logfile);
3748  ost->logfile = NULL;
3749  }
3750  av_freep(&ost->forced_kf_pts);
3751  av_freep(&ost->apad);
3752  av_dict_free(&ost->encoder_opts);
3753  av_dict_free(&ost->swr_opts);
3754  av_dict_free(&ost->resample_opts);
3755  }
3756  }
3757  }
3758  return ret;
3759 }
3760 
3761 
3762 static int64_t getutime(void)
3763 {
3764 #if HAVE_GETRUSAGE
3765  struct rusage rusage;
3766 
3767  getrusage(RUSAGE_SELF, &rusage);
3768  return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3769 #elif HAVE_GETPROCESSTIMES
3770  HANDLE proc;
3771  FILETIME c, e, k, u;
3772  proc = GetCurrentProcess();
3773  GetProcessTimes(proc, &c, &e, &k, &u);
3774  return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3775 #else
3776  return av_gettime();
3777 #endif
3778 }
3779 
3780 static int64_t getmaxrss(void)
3781 {
3782 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3783  struct rusage rusage;
3784  getrusage(RUSAGE_SELF, &rusage);
3785  return (int64_t)rusage.ru_maxrss * 1024;
3786 #elif HAVE_GETPROCESSMEMORYINFO
3787  HANDLE proc;
3788  PROCESS_MEMORY_COUNTERS memcounters;
3789  proc = GetCurrentProcess();
3790  memcounters.cb = sizeof(memcounters);
3791  GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3792  return memcounters.PeakPagefileUsage;
3793 #else
3794  return 0;
3795 #endif
3796 }
3797 
3798 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
3799 {
3800 }
3801 
3802 int main(int argc, char **argv)
3803 {
3804  int ret;
3805  int64_t ti;
3806 
3808 
3809  setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
3810 
3812  parse_loglevel(argc, argv, options);
3813 
3814  if(argc>1 && !strcmp(argv[1], "-d")){
3815  run_as_daemon=1;
3817  argc--;
3818  argv++;
3819  }
3820 
3822 #if CONFIG_AVDEVICE
3824 #endif
3826  av_register_all();
3828 
3829  show_banner(argc, argv, options);
3830 
3831  term_init();
3832 
3833  /* parse options and open all input/output files */
3834  ret = ffmpeg_parse_options(argc, argv);
3835  if (ret < 0)
3836  exit_program(1);
3837 
3838  if (nb_output_files <= 0 && nb_input_files == 0) {
3839  show_usage();
3840  av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3841  exit_program(1);
3842  }
3843 
3844  /* file converter / grab */
3845  if (nb_output_files <= 0) {
3846  av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
3847  exit_program(1);
3848  }
3849 
3850 // if (nb_input_files == 0) {
3851 // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
3852 // exit_program(1);
3853 // }
3854 
3855  current_time = ti = getutime();
3856  if (transcode() < 0)
3857  exit_program(1);
3858  ti = getutime() - ti;
3859  if (do_benchmark) {
3860  printf("bench: utime=%0.3fs\n", ti / 1000000.0);
3861  }
3862  av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n",
3865  exit_program(69);
3866 
3868  return main_return_code;
3869 }