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 (pkt->dts != AV_NOPTS_VALUE &&
663  pkt->pts != AV_NOPTS_VALUE &&
664  pkt->dts > pkt->pts) {
665  av_log(s, AV_LOG_WARNING, "Invalid DTS: %"PRId64" PTS: %"PRId64" in output stream %d:%d, replacing by guess\n",
666  pkt->dts, pkt->pts,
667  ost->file_index, ost->st->index);
668  pkt->pts =
669  pkt->dts = pkt->pts + pkt->dts + ost->last_mux_dts + 1
670  - FFMIN3(pkt->pts, pkt->dts, ost->last_mux_dts + 1)
671  - FFMAX3(pkt->pts, pkt->dts, ost->last_mux_dts + 1);
672  }
673  if(
674  (avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) &&
675  pkt->dts != AV_NOPTS_VALUE &&
676  ost->last_mux_dts != AV_NOPTS_VALUE) {
677  int64_t max = ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
678  if (pkt->dts < max) {
679  int loglevel = max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG;
680  av_log(s, loglevel, "Non-monotonous DTS in output stream "
681  "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
682  ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
683  if (exit_on_error) {
684  av_log(NULL, AV_LOG_FATAL, "aborting.\n");
685  exit_program(1);
686  }
687  av_log(s, loglevel, "changing to %"PRId64". This may result "
688  "in incorrect timestamps in the output file.\n",
689  max);
690  if(pkt->pts >= pkt->dts)
691  pkt->pts = FFMAX(pkt->pts, max);
692  pkt->dts = max;
693  }
694  }
695  }
696  ost->last_mux_dts = pkt->dts;
697 
698  ost->data_size += pkt->size;
699  ost->packets_written++;
700 
701  pkt->stream_index = ost->index;
702 
703  if (debug_ts) {
704  av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
705  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
707  av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
708  av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
709  pkt->size
710  );
711  }
712 
713  ret = av_interleaved_write_frame(s, pkt);
714  if (ret < 0) {
715  print_error("av_interleaved_write_frame()", ret);
716  main_return_code = 1;
718  }
719  av_free_packet(pkt);
720 }
721 
723 {
724  OutputFile *of = output_files[ost->file_index];
725 
726  ost->finished |= ENCODER_FINISHED;
727  if (of->shortest) {
728  int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, AV_TIME_BASE_Q);
729  of->recording_time = FFMIN(of->recording_time, end);
730  }
731 }
732 
734 {
735  OutputFile *of = output_files[ost->file_index];
736 
737  if (of->recording_time != INT64_MAX &&
739  AV_TIME_BASE_Q) >= 0) {
740  close_output_stream(ost);
741  return 0;
742  }
743  return 1;
744 }
745 
747  AVFrame *frame)
748 {
749  AVCodecContext *enc = ost->enc_ctx;
750  AVPacket pkt;
751  int got_packet = 0;
752 
753  av_init_packet(&pkt);
754  pkt.data = NULL;
755  pkt.size = 0;
756 
757  if (!check_recording_time(ost))
758  return;
759 
760  if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
761  frame->pts = ost->sync_opts;
762  ost->sync_opts = frame->pts + frame->nb_samples;
763  ost->samples_encoded += frame->nb_samples;
764  ost->frames_encoded++;
765 
766  av_assert0(pkt.size || !pkt.data);
767  update_benchmark(NULL);
768  if (debug_ts) {
769  av_log(NULL, AV_LOG_INFO, "encoder <- type:audio "
770  "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
771  av_ts2str(frame->pts), av_ts2timestr(frame->pts, &enc->time_base),
772  enc->time_base.num, enc->time_base.den);
773  }
774 
775  if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
776  av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
777  exit_program(1);
778  }
779  update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
780 
781  if (got_packet) {
782  av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
783 
784  if (debug_ts) {
785  av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
786  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
787  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
788  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
789  }
790 
791  write_frame(s, &pkt, ost);
792  }
793 }
794 
796  OutputStream *ost,
797  InputStream *ist,
798  AVSubtitle *sub)
799 {
800  int subtitle_out_max_size = 1024 * 1024;
801  int subtitle_out_size, nb, i;
802  AVCodecContext *enc;
803  AVPacket pkt;
804  int64_t pts;
805 
806  if (sub->pts == AV_NOPTS_VALUE) {
807  av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
808  if (exit_on_error)
809  exit_program(1);
810  return;
811  }
812 
813  enc = ost->enc_ctx;
814 
815  if (!subtitle_out) {
816  subtitle_out = av_malloc(subtitle_out_max_size);
817  }
818 
819  /* Note: DVB subtitle need one packet to draw them and one other
820  packet to clear them */
821  /* XXX: signal it in the codec context ? */
823  nb = 2;
824  else
825  nb = 1;
826 
827  /* shift timestamp to honor -ss and make check_recording_time() work with -t */
828  pts = sub->pts;
829  if (output_files[ost->file_index]->start_time != AV_NOPTS_VALUE)
830  pts -= output_files[ost->file_index]->start_time;
831  for (i = 0; i < nb; i++) {
832  unsigned save_num_rects = sub->num_rects;
833 
834  ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
835  if (!check_recording_time(ost))
836  return;
837 
838  sub->pts = pts;
839  // start_display_time is required to be 0
840  sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
842  sub->start_display_time = 0;
843  if (i == 1)
844  sub->num_rects = 0;
845 
846  ost->frames_encoded++;
847 
848  subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
849  subtitle_out_max_size, sub);
850  if (i == 1)
851  sub->num_rects = save_num_rects;
852  if (subtitle_out_size < 0) {
853  av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
854  exit_program(1);
855  }
856 
857  av_init_packet(&pkt);
858  pkt.data = subtitle_out;
859  pkt.size = subtitle_out_size;
860  pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
861  pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
862  if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
863  /* XXX: the pts correction is handled here. Maybe handling
864  it in the codec would be better */
865  if (i == 0)
866  pkt.pts += 90 * sub->start_display_time;
867  else
868  pkt.pts += 90 * sub->end_display_time;
869  }
870  pkt.dts = pkt.pts;
871  write_frame(s, &pkt, ost);
872  }
873 }
874 
876  OutputStream *ost,
877  AVFrame *in_picture)
878 {
879  int ret, format_video_sync;
880  AVPacket pkt;
881  AVCodecContext *enc = ost->enc_ctx;
882  AVCodecContext *mux_enc = ost->st->codec;
883  int nb_frames, i;
884  double sync_ipts, delta;
885  double duration = 0;
886  int frame_size = 0;
887  InputStream *ist = NULL;
888 
889  if (ost->source_index >= 0)
890  ist = input_streams[ost->source_index];
891 
892  if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
893  duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
894 
895  sync_ipts = in_picture->pts;
896  delta = sync_ipts - ost->sync_opts + duration;
897 
898  /* by default, we output a single frame */
899  nb_frames = 1;
900 
901  format_video_sync = video_sync_method;
902  if (format_video_sync == VSYNC_AUTO) {
903  if(!strcmp(s->oformat->name, "avi")) {
904  format_video_sync = VSYNC_VFR;
905  } else
907  if ( ist
908  && format_video_sync == VSYNC_CFR
909  && input_files[ist->file_index]->ctx->nb_streams == 1
910  && input_files[ist->file_index]->input_ts_offset == 0) {
911  format_video_sync = VSYNC_VSCFR;
912  }
913  if (format_video_sync == VSYNC_CFR && copy_ts) {
914  format_video_sync = VSYNC_VSCFR;
915  }
916  }
917 
918  switch (format_video_sync) {
919  case VSYNC_VSCFR:
920  if (ost->frame_number == 0 && delta - duration >= 0.5) {
921  av_log(NULL, AV_LOG_DEBUG, "Not duplicating %d initial frames\n", (int)lrintf(delta - duration));
922  delta = duration;
923  ost->sync_opts = lrint(sync_ipts);
924  }
925  case VSYNC_CFR:
926  // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
927  if (delta < -1.1)
928  nb_frames = 0;
929  else if (delta > 1.1)
930  nb_frames = lrintf(delta);
931  break;
932  case VSYNC_VFR:
933  if (delta <= -0.6)
934  nb_frames = 0;
935  else if (delta > 0.6)
936  ost->sync_opts = lrint(sync_ipts);
937  break;
938  case VSYNC_DROP:
939  case VSYNC_PASSTHROUGH:
940  ost->sync_opts = lrint(sync_ipts);
941  break;
942  default:
943  av_assert0(0);
944  }
945 
946  nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
947  if (nb_frames == 0) {
948  nb_frames_drop++;
949  av_log(NULL, AV_LOG_VERBOSE,
950  "*** dropping frame %d from stream %d at ts %"PRId64"\n",
951  ost->frame_number, ost->st->index, in_picture->pts);
952  return;
953  } else if (nb_frames > 1) {
954  if (nb_frames > dts_error_threshold * 30) {
955  av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
956  nb_frames_drop++;
957  return;
958  }
959  nb_frames_dup += nb_frames - 1;
960  av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
961  }
962 
963  /* duplicates frame if needed */
964  for (i = 0; i < nb_frames; i++) {
965  av_init_packet(&pkt);
966  pkt.data = NULL;
967  pkt.size = 0;
968 
969  in_picture->pts = ost->sync_opts;
970 
971 #if 1
972  if (!check_recording_time(ost))
973 #else
974  if (ost->frame_number >= ost->max_frames)
975 #endif
976  return;
977 
978  if (s->oformat->flags & AVFMT_RAWPICTURE &&
979  enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
980  /* raw pictures are written as AVPicture structure to
981  avoid any copies. We support temporarily the older
982  method. */
983  mux_enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
984  mux_enc->coded_frame->top_field_first = in_picture->top_field_first;
985  if (mux_enc->coded_frame->interlaced_frame)
987  else
989  pkt.data = (uint8_t *)in_picture;
990  pkt.size = sizeof(AVPicture);
991  pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
992  pkt.flags |= AV_PKT_FLAG_KEY;
993 
994  write_frame(s, &pkt, ost);
995  } else {
996  int got_packet, forced_keyframe = 0;
997  double pts_time;
998 
1000  ost->top_field_first >= 0)
1001  in_picture->top_field_first = !!ost->top_field_first;
1002 
1003  if (in_picture->interlaced_frame) {
1004  if (enc->codec->id == AV_CODEC_ID_MJPEG)
1005  mux_enc->field_order = in_picture->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
1006  else
1007  mux_enc->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
1008  } else
1009  mux_enc->field_order = AV_FIELD_PROGRESSIVE;
1010 
1011  in_picture->quality = enc->global_quality;
1012  in_picture->pict_type = 0;
1013 
1014  pts_time = in_picture->pts != AV_NOPTS_VALUE ?
1015  in_picture->pts * av_q2d(enc->time_base) : NAN;
1016  if (ost->forced_kf_index < ost->forced_kf_count &&
1017  in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1018  ost->forced_kf_index++;
1019  forced_keyframe = 1;
1020  } else if (ost->forced_keyframes_pexpr) {
1021  double res;
1022  ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
1025  av_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
1031  res);
1032  if (res) {
1033  forced_keyframe = 1;
1039  }
1040 
1042  }
1043 
1044  if (forced_keyframe) {
1045  in_picture->pict_type = AV_PICTURE_TYPE_I;
1046  av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
1047  }
1048 
1049  update_benchmark(NULL);
1050  if (debug_ts) {
1051  av_log(NULL, AV_LOG_INFO, "encoder <- type:video "
1052  "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
1053  av_ts2str(in_picture->pts), av_ts2timestr(in_picture->pts, &enc->time_base),
1054  enc->time_base.num, enc->time_base.den);
1055  }
1056 
1057  ost->frames_encoded++;
1058 
1059  ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
1060  update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
1061  if (ret < 0) {
1062  av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1063  exit_program(1);
1064  }
1065 
1066  if (got_packet) {
1067  if (debug_ts) {
1068  av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
1069  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
1070  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &enc->time_base),
1071  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &enc->time_base));
1072  }
1073 
1074  if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
1075  pkt.pts = ost->sync_opts;
1076 
1077  av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
1078 
1079  if (debug_ts) {
1080  av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
1081  "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
1082  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
1083  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
1084  }
1085 
1086  frame_size = pkt.size;
1087  write_frame(s, &pkt, ost);
1088 
1089  /* if two pass, output log */
1090  if (ost->logfile && enc->stats_out) {
1091  fprintf(ost->logfile, "%s", enc->stats_out);
1092  }
1093  }
1094  }
1095  ost->sync_opts++;
1096  /*
1097  * For video, number of frames in == number of packets out.
1098  * But there may be reordering, so we can't throw away frames on encoder
1099  * flush, we need to limit them here, before they go into encoder.
1100  */
1101  ost->frame_number++;
1102 
1103  if (vstats_filename && frame_size)
1104  do_video_stats(ost, frame_size);
1105  }
1106 }
1107 
1108 static double psnr(double d)
1109 {
1110  return -10.0 * log(d) / log(10.0);
1111 }
1112 
1114 {
1115  AVCodecContext *enc;
1116  int frame_number;
1117  double ti1, bitrate, avg_bitrate;
1118 
1119  /* this is executed just the first time do_video_stats is called */
1120  if (!vstats_file) {
1121  vstats_file = fopen(vstats_filename, "w");
1122  if (!vstats_file) {
1123  perror("fopen");
1124  exit_program(1);
1125  }
1126  }
1127 
1128  enc = ost->enc_ctx;
1129  if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1130  frame_number = ost->st->nb_frames;
1131  fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1132  if (enc->flags&CODEC_FLAG_PSNR)
1133  fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1134 
1135  fprintf(vstats_file,"f_size= %6d ", frame_size);
1136  /* compute pts value */
1137  ti1 = av_stream_get_end_pts(ost->st) * av_q2d(ost->st->time_base);
1138  if (ti1 < 0.01)
1139  ti1 = 0.01;
1140 
1141  bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1142  avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
1143  fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1144  (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
1145  fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1146  }
1147 }
1148 
1150 {
1151  OutputFile *of = output_files[ost->file_index];
1152  int i;
1153 
1155 
1156  if (of->shortest) {
1157  for (i = 0; i < of->ctx->nb_streams; i++)
1158  output_streams[of->ost_index + i]->finished = ENCODER_FINISHED | MUXER_FINISHED;
1159  }
1160 }
1161 
1162 /**
1163  * Get and encode new output from any of the filtergraphs, without causing
1164  * activity.
1165  *
1166  * @return 0 for success, <0 for severe errors
1167  */
1168 static int reap_filters(void)
1169 {
1170  AVFrame *filtered_frame = NULL;
1171  int i;
1172  int64_t frame_pts;
1173 
1174  /* Reap all buffers present in the buffer sinks */
1175  for (i = 0; i < nb_output_streams; i++) {
1176  OutputStream *ost = output_streams[i];
1177  OutputFile *of = output_files[ost->file_index];
1179  AVCodecContext *enc = ost->enc_ctx;
1180  int ret = 0;
1181 
1182  if (!ost->filter)
1183  continue;
1184  filter = ost->filter->filter;
1185 
1186  if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
1187  return AVERROR(ENOMEM);
1188  }
1189  filtered_frame = ost->filtered_frame;
1190 
1191  while (1) {
1192  ret = av_buffersink_get_frame_flags(filter, filtered_frame,
1194  if (ret < 0) {
1195  if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1196  av_log(NULL, AV_LOG_WARNING,
1197  "Error in av_buffersink_get_frame_flags(): %s\n", av_err2str(ret));
1198  }
1199  break;
1200  }
1201  if (ost->finished) {
1202  av_frame_unref(filtered_frame);
1203  continue;
1204  }
1205  frame_pts = AV_NOPTS_VALUE;
1206  if (filtered_frame->pts != AV_NOPTS_VALUE) {
1207  int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1208  filtered_frame->pts = frame_pts =
1209  av_rescale_q(filtered_frame->pts, filter->inputs[0]->time_base, enc->time_base) -
1210  av_rescale_q(start_time, AV_TIME_BASE_Q, enc->time_base);
1211  }
1212  //if (ost->source_index >= 0)
1213  // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1214 
1215  switch (filter->inputs[0]->type) {
1216  case AVMEDIA_TYPE_VIDEO:
1217  filtered_frame->pts = frame_pts;
1218  if (!ost->frame_aspect_ratio.num)
1219  enc->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
1220 
1221  if (debug_ts) {
1222  av_log(NULL, AV_LOG_INFO, "filter -> pts:%s pts_time:%s time_base:%d/%d\n",
1223  av_ts2str(filtered_frame->pts), av_ts2timestr(filtered_frame->pts, &enc->time_base),
1224  enc->time_base.num, enc->time_base.den);
1225  }
1226 
1227  do_video_out(of->ctx, ost, filtered_frame);
1228  break;
1229  case AVMEDIA_TYPE_AUDIO:
1230  filtered_frame->pts = frame_pts;
1231  if (!(enc->codec->capabilities & CODEC_CAP_PARAM_CHANGE) &&
1232  enc->channels != av_frame_get_channels(filtered_frame)) {
1233  av_log(NULL, AV_LOG_ERROR,
1234  "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
1235  break;
1236  }
1237  do_audio_out(of->ctx, ost, filtered_frame);
1238  break;
1239  default:
1240  // TODO support subtitle filters
1241  av_assert0(0);
1242  }
1243 
1244  av_frame_unref(filtered_frame);
1245  }
1246  }
1247 
1248  return 0;
1249 }
1250 
1251 static void print_final_stats(int64_t total_size)
1252 {
1253  uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
1254  uint64_t subtitle_size = 0;
1255  uint64_t data_size = 0;
1256  float percent = -1.0;
1257  int i, j;
1258 
1259  for (i = 0; i < nb_output_streams; i++) {
1260  OutputStream *ost = output_streams[i];
1261  switch (ost->enc_ctx->codec_type) {
1262  case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
1263  case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
1264  case AVMEDIA_TYPE_SUBTITLE: subtitle_size += ost->data_size; break;
1265  default: other_size += ost->data_size; break;
1266  }
1267  extra_size += ost->enc_ctx->extradata_size;
1268  data_size += ost->data_size;
1269  }
1270 
1271  if (data_size && total_size>0 && total_size >= data_size)
1272  percent = 100.0 * (total_size - data_size) / data_size;
1273 
1274  av_log(NULL, AV_LOG_INFO, "\n");
1275  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: ",
1276  video_size / 1024.0,
1277  audio_size / 1024.0,
1278  subtitle_size / 1024.0,
1279  other_size / 1024.0,
1280  extra_size / 1024.0);
1281  if (percent >= 0.0)
1282  av_log(NULL, AV_LOG_INFO, "%f%%", percent);
1283  else
1284  av_log(NULL, AV_LOG_INFO, "unknown");
1285  av_log(NULL, AV_LOG_INFO, "\n");
1286 
1287  /* print verbose per-stream stats */
1288  for (i = 0; i < nb_input_files; i++) {
1289  InputFile *f = input_files[i];
1290  uint64_t total_packets = 0, total_size = 0;
1291 
1292  av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
1293  i, f->ctx->filename);
1294 
1295  for (j = 0; j < f->nb_streams; j++) {
1296  InputStream *ist = input_streams[f->ist_index + j];
1297  enum AVMediaType type = ist->dec_ctx->codec_type;
1298 
1299  total_size += ist->data_size;
1300  total_packets += ist->nb_packets;
1301 
1302  av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
1303  i, j, media_type_string(type));
1304  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
1305  ist->nb_packets, ist->data_size);
1306 
1307  if (ist->decoding_needed) {
1308  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
1309  ist->frames_decoded);
1310  if (type == AVMEDIA_TYPE_AUDIO)
1311  av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
1312  av_log(NULL, AV_LOG_VERBOSE, "; ");
1313  }
1314 
1315  av_log(NULL, AV_LOG_VERBOSE, "\n");
1316  }
1317 
1318  av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
1319  total_packets, total_size);
1320  }
1321 
1322  for (i = 0; i < nb_output_files; i++) {
1323  OutputFile *of = output_files[i];
1324  uint64_t total_packets = 0, total_size = 0;
1325 
1326  av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
1327  i, of->ctx->filename);
1328 
1329  for (j = 0; j < of->ctx->nb_streams; j++) {
1330  OutputStream *ost = output_streams[of->ost_index + j];
1331  enum AVMediaType type = ost->enc_ctx->codec_type;
1332 
1333  total_size += ost->data_size;
1334  total_packets += ost->packets_written;
1335 
1336  av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
1337  i, j, media_type_string(type));
1338  if (ost->encoding_needed) {
1339  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
1340  ost->frames_encoded);
1341  if (type == AVMEDIA_TYPE_AUDIO)
1342  av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
1343  av_log(NULL, AV_LOG_VERBOSE, "; ");
1344  }
1345 
1346  av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
1347  ost->packets_written, ost->data_size);
1348 
1349  av_log(NULL, AV_LOG_VERBOSE, "\n");
1350  }
1351 
1352  av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
1353  total_packets, total_size);
1354  }
1355  if(video_size + data_size + audio_size + subtitle_size + extra_size == 0){
1356  av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
1357  }
1358 }
1359 
1360 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1361 {
1362  char buf[1024];
1363  AVBPrint buf_script;
1364  OutputStream *ost;
1365  AVFormatContext *oc;
1366  int64_t total_size;
1367  AVCodecContext *enc;
1368  int frame_number, vid, i;
1369  double bitrate;
1370  int64_t pts = INT64_MIN;
1371  static int64_t last_time = -1;
1372  static int qp_histogram[52];
1373  int hours, mins, secs, us;
1374 
1375  if (!print_stats && !is_last_report && !progress_avio)
1376  return;
1377 
1378  if (!is_last_report) {
1379  if (last_time == -1) {
1380  last_time = cur_time;
1381  return;
1382  }
1383  if ((cur_time - last_time) < 500000)
1384  return;
1385  last_time = cur_time;
1386  }
1387 
1388 
1389  oc = output_files[0]->ctx;
1390 
1391  total_size = avio_size(oc->pb);
1392  if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
1393  total_size = avio_tell(oc->pb);
1394 
1395  buf[0] = '\0';
1396  vid = 0;
1397  av_bprint_init(&buf_script, 0, 1);
1398  for (i = 0; i < nb_output_streams; i++) {
1399  float q = -1;
1400  ost = output_streams[i];
1401  enc = ost->enc_ctx;
1402  if (!ost->stream_copy && enc->coded_frame)
1403  q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1404  if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1405  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1406  av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1407  ost->file_index, ost->index, q);
1408  }
1409  if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1410  float fps, t = (cur_time-timer_start) / 1000000.0;
1411 
1412  frame_number = ost->frame_number;
1413  fps = t > 1 ? frame_number / t : 0;
1414  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
1415  frame_number, fps < 9.95, fps, q);
1416  av_bprintf(&buf_script, "frame=%d\n", frame_number);
1417  av_bprintf(&buf_script, "fps=%.1f\n", fps);
1418  av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1419  ost->file_index, ost->index, q);
1420  if (is_last_report)
1421  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1422  if (qp_hist) {
1423  int j;
1424  int qp = lrintf(q);
1425  if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1426  qp_histogram[qp]++;
1427  for (j = 0; j < 32; j++)
1428  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
1429  }
1430  if ((enc->flags&CODEC_FLAG_PSNR) && (enc->coded_frame || is_last_report)) {
1431  int j;
1432  double error, error_sum = 0;
1433  double scale, scale_sum = 0;
1434  double p;
1435  char type[3] = { 'Y','U','V' };
1436  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1437  for (j = 0; j < 3; j++) {
1438  if (is_last_report) {
1439  error = enc->error[j];
1440  scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1441  } else {
1442  error = enc->coded_frame->error[j];
1443  scale = enc->width * enc->height * 255.0 * 255.0;
1444  }
1445  if (j)
1446  scale /= 4;
1447  error_sum += error;
1448  scale_sum += scale;
1449  p = psnr(error / scale);
1450  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
1451  av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1452  ost->file_index, ost->index, type[j] | 32, p);
1453  }
1454  p = psnr(error_sum / scale_sum);
1455  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1456  av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1457  ost->file_index, ost->index, p);
1458  }
1459  vid = 1;
1460  }
1461  /* compute min output value */
1463  pts = FFMAX(pts, av_rescale_q(av_stream_get_end_pts(ost->st),
1464  ost->st->time_base, AV_TIME_BASE_Q));
1465  }
1466 
1467  secs = pts / AV_TIME_BASE;
1468  us = pts % AV_TIME_BASE;
1469  mins = secs / 60;
1470  secs %= 60;
1471  hours = mins / 60;
1472  mins %= 60;
1473 
1474  bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
1475 
1476  if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1477  "size=N/A time=");
1478  else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1479  "size=%8.0fkB time=", total_size / 1024.0);
1480  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1481  "%02d:%02d:%02d.%02d ", hours, mins, secs,
1482  (100 * us) / AV_TIME_BASE);
1483  if (bitrate < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1484  "bitrate=N/A");
1485  else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1486  "bitrate=%6.1fkbits/s", bitrate);
1487  if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
1488  else av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1489  av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1490  av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
1491  hours, mins, secs, us);
1492 
1494  snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1496  av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1497  av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1498 
1499  if (print_stats || is_last_report) {
1500  if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
1501  fprintf(stderr, "%s \r", buf);
1502  } else
1503  av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1504 
1505  fflush(stderr);
1506  }
1507 
1508  if (progress_avio) {
1509  av_bprintf(&buf_script, "progress=%s\n",
1510  is_last_report ? "end" : "continue");
1511  avio_write(progress_avio, buf_script.str,
1512  FFMIN(buf_script.len, buf_script.size - 1));
1513  avio_flush(progress_avio);
1514  av_bprint_finalize(&buf_script, NULL);
1515  if (is_last_report) {
1516  avio_close(progress_avio);
1517  progress_avio = NULL;
1518  }
1519  }
1520 
1521  if (is_last_report)
1522  print_final_stats(total_size);
1523 }
1524 
1525 static void flush_encoders(void)
1526 {
1527  int i, ret;
1528 
1529  for (i = 0; i < nb_output_streams; i++) {
1530  OutputStream *ost = output_streams[i];
1531  AVCodecContext *enc = ost->enc_ctx;
1532  AVFormatContext *os = output_files[ost->file_index]->ctx;
1533  int stop_encoding = 0;
1534 
1535  if (!ost->encoding_needed)
1536  continue;
1537 
1538  if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1539  continue;
1541  continue;
1542 
1543  for (;;) {
1544  int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1545  const char *desc;
1546 
1547  switch (enc->codec_type) {
1548  case AVMEDIA_TYPE_AUDIO:
1549  encode = avcodec_encode_audio2;
1550  desc = "Audio";
1551  break;
1552  case AVMEDIA_TYPE_VIDEO:
1553  encode = avcodec_encode_video2;
1554  desc = "Video";
1555  break;
1556  default:
1557  stop_encoding = 1;
1558  }
1559 
1560  if (encode) {
1561  AVPacket pkt;
1562  int pkt_size;
1563  int got_packet;
1564  av_init_packet(&pkt);
1565  pkt.data = NULL;
1566  pkt.size = 0;
1567 
1568  update_benchmark(NULL);
1569  ret = encode(enc, &pkt, NULL, &got_packet);
1570  update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
1571  if (ret < 0) {
1572  av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1573  exit_program(1);
1574  }
1575  if (ost->logfile && enc->stats_out) {
1576  fprintf(ost->logfile, "%s", enc->stats_out);
1577  }
1578  if (!got_packet) {
1579  stop_encoding = 1;
1580  break;
1581  }
1582  if (ost->finished & MUXER_FINISHED) {
1583  av_free_packet(&pkt);
1584  continue;
1585  }
1586  av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
1587  pkt_size = pkt.size;
1588  write_frame(os, &pkt, ost);
1590  do_video_stats(ost, pkt_size);
1591  }
1592  }
1593 
1594  if (stop_encoding)
1595  break;
1596  }
1597  }
1598 }
1599 
1600 /*
1601  * Check whether a packet from ist should be written into ost at this time
1602  */
1604 {
1605  OutputFile *of = output_files[ost->file_index];
1606  int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1607 
1608  if (ost->source_index != ist_index)
1609  return 0;
1610 
1611  if (ost->finished)
1612  return 0;
1613 
1614  if (of->start_time != AV_NOPTS_VALUE && ist->pts < of->start_time)
1615  return 0;
1616 
1617  return 1;
1618 }
1619 
1620 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1621 {
1622  OutputFile *of = output_files[ost->file_index];
1623  InputFile *f = input_files [ist->file_index];
1624  int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1625  int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1626  int64_t ist_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ist->st->time_base);
1627  AVPicture pict;
1628  AVPacket opkt;
1629 
1630  av_init_packet(&opkt);
1631 
1632  if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1634  return;
1635 
1636  if (pkt->pts == AV_NOPTS_VALUE) {
1637  if (!ost->frame_number && ist->pts < start_time &&
1638  !ost->copy_prior_start)
1639  return;
1640  } else {
1641  if (!ost->frame_number && pkt->pts < ist_tb_start_time &&
1642  !ost->copy_prior_start)
1643  return;
1644  }
1645 
1646  if (of->recording_time != INT64_MAX &&
1647  ist->pts >= of->recording_time + start_time) {
1648  close_output_stream(ost);
1649  return;
1650  }
1651 
1652  if (f->recording_time != INT64_MAX) {
1653  start_time = f->ctx->start_time;
1654  if (f->start_time != AV_NOPTS_VALUE)
1655  start_time += f->start_time;
1656  if (ist->pts >= f->recording_time + start_time) {
1657  close_output_stream(ost);
1658  return;
1659  }
1660  }
1661 
1662  /* force the input stream PTS */
1663  if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
1664  ost->sync_opts++;
1665 
1666  if (pkt->pts != AV_NOPTS_VALUE)
1667  opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1668  else
1669  opkt.pts = AV_NOPTS_VALUE;
1670 
1671  if (pkt->dts == AV_NOPTS_VALUE)
1672  opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
1673  else
1674  opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1675  opkt.dts -= ost_tb_start_time;
1676 
1677  if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
1679  if(!duration)
1680  duration = ist->dec_ctx->frame_size;
1681  opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
1683  ost->st->time_base) - ost_tb_start_time;
1684  }
1685 
1686  opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1687  opkt.flags = pkt->flags;
1688 
1689  // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1690  if ( ost->enc_ctx->codec_id != AV_CODEC_ID_H264
1691  && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG1VIDEO
1692  && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG2VIDEO
1693  && ost->enc_ctx->codec_id != AV_CODEC_ID_VC1
1694  ) {
1695  if (av_parser_change(ost->parser, ost->st->codec,
1696  &opkt.data, &opkt.size,
1697  pkt->data, pkt->size,
1698  pkt->flags & AV_PKT_FLAG_KEY)) {
1699  opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1700  if (!opkt.buf)
1701  exit_program(1);
1702  }
1703  } else {
1704  opkt.data = pkt->data;
1705  opkt.size = pkt->size;
1706  }
1707  av_copy_packet_side_data(&opkt, pkt);
1708 
1709  if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
1710  /* store AVPicture in AVPacket, as expected by the output format */
1711  avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1712  opkt.data = (uint8_t *)&pict;
1713  opkt.size = sizeof(AVPicture);
1714  opkt.flags |= AV_PKT_FLAG_KEY;
1715  }
1716 
1717  write_frame(of->ctx, &opkt, ost);
1718 }
1719 
1721 {
1722  AVCodecContext *dec = ist->dec_ctx;
1723 
1724  if (!dec->channel_layout) {
1725  char layout_name[256];
1726 
1727  if (dec->channels > ist->guess_layout_max)
1728  return 0;
1730  if (!dec->channel_layout)
1731  return 0;
1732  av_get_channel_layout_string(layout_name, sizeof(layout_name),
1733  dec->channels, dec->channel_layout);
1734  av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1735  "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1736  }
1737  return 1;
1738 }
1739 
1740 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1741 {
1742  AVFrame *decoded_frame, *f;
1743  AVCodecContext *avctx = ist->dec_ctx;
1744  int i, ret, err = 0, resample_changed;
1745  AVRational decoded_frame_tb;
1746 
1747  if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1748  return AVERROR(ENOMEM);
1749  if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1750  return AVERROR(ENOMEM);
1751  decoded_frame = ist->decoded_frame;
1752 
1753  update_benchmark(NULL);
1754  ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1755  update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
1756 
1757  if (ret >= 0 && avctx->sample_rate <= 0) {
1758  av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
1759  ret = AVERROR_INVALIDDATA;
1760  }
1761 
1762  if (*got_output || ret<0 || pkt->size)
1763  decode_error_stat[ret<0] ++;
1764 
1765  if (!*got_output || ret < 0) {
1766  if (!pkt->size) {
1767  for (i = 0; i < ist->nb_filters; i++)
1768 #if 1
1769  av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1770 #else
1771  av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1772 #endif
1773  }
1774  return ret;
1775  }
1776 
1777  ist->samples_decoded += decoded_frame->nb_samples;
1778  ist->frames_decoded++;
1779 
1780 #if 1
1781  /* increment next_dts to use for the case where the input stream does not
1782  have timestamps or there are multiple frames in the packet */
1783  ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1784  avctx->sample_rate;
1785  ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1786  avctx->sample_rate;
1787 #endif
1788 
1789  resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1790  ist->resample_channels != avctx->channels ||
1791  ist->resample_channel_layout != decoded_frame->channel_layout ||
1792  ist->resample_sample_rate != decoded_frame->sample_rate;
1793  if (resample_changed) {
1794  char layout1[64], layout2[64];
1795 
1796  if (!guess_input_channel_layout(ist)) {
1797  av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1798  "layout for Input Stream #%d.%d\n", ist->file_index,
1799  ist->st->index);
1800  exit_program(1);
1801  }
1802  decoded_frame->channel_layout = avctx->channel_layout;
1803 
1804  av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1806  av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1807  decoded_frame->channel_layout);
1808 
1809  av_log(NULL, AV_LOG_INFO,
1810  "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",
1811  ist->file_index, ist->st->index,
1813  ist->resample_channels, layout1,
1814  decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1815  avctx->channels, layout2);
1816 
1817  ist->resample_sample_fmt = decoded_frame->format;
1818  ist->resample_sample_rate = decoded_frame->sample_rate;
1819  ist->resample_channel_layout = decoded_frame->channel_layout;
1820  ist->resample_channels = avctx->channels;
1821 
1822  for (i = 0; i < nb_filtergraphs; i++)
1823  if (ist_in_filtergraph(filtergraphs[i], ist)) {
1824  FilterGraph *fg = filtergraphs[i];
1825  if (configure_filtergraph(fg) < 0) {
1826  av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1827  exit_program(1);
1828  }
1829  }
1830  }
1831 
1832  /* if the decoder provides a pts, use it instead of the last packet pts.
1833  the decoder could be delaying output by a packet or more. */
1834  if (decoded_frame->pts != AV_NOPTS_VALUE) {
1835  ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
1836  decoded_frame_tb = avctx->time_base;
1837  } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
1838  decoded_frame->pts = decoded_frame->pkt_pts;
1839  decoded_frame_tb = ist->st->time_base;
1840  } else if (pkt->pts != AV_NOPTS_VALUE) {
1841  decoded_frame->pts = pkt->pts;
1842  decoded_frame_tb = ist->st->time_base;
1843  }else {
1844  decoded_frame->pts = ist->dts;
1845  decoded_frame_tb = AV_TIME_BASE_Q;
1846  }
1847  pkt->pts = AV_NOPTS_VALUE;
1848  if (decoded_frame->pts != AV_NOPTS_VALUE)
1849  decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
1850  (AVRational){1, avctx->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
1851  (AVRational){1, avctx->sample_rate});
1852  for (i = 0; i < ist->nb_filters; i++) {
1853  if (i < ist->nb_filters - 1) {
1854  f = ist->filter_frame;
1855  err = av_frame_ref(f, decoded_frame);
1856  if (err < 0)
1857  break;
1858  } else
1859  f = decoded_frame;
1860  err = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f,
1862  if (err == AVERROR_EOF)
1863  err = 0; /* ignore */
1864  if (err < 0)
1865  break;
1866  }
1867  decoded_frame->pts = AV_NOPTS_VALUE;
1868 
1869  av_frame_unref(ist->filter_frame);
1870  av_frame_unref(decoded_frame);
1871  return err < 0 ? err : ret;
1872 }
1873 
1874 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1875 {
1876  AVFrame *decoded_frame, *f;
1877  int i, ret = 0, err = 0, resample_changed;
1878  int64_t best_effort_timestamp;
1879  AVRational *frame_sample_aspect;
1880 
1881  if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1882  return AVERROR(ENOMEM);
1883  if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1884  return AVERROR(ENOMEM);
1885  decoded_frame = ist->decoded_frame;
1886  pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
1887 
1888  update_benchmark(NULL);
1889  ret = avcodec_decode_video2(ist->dec_ctx,
1890  decoded_frame, got_output, pkt);
1891  update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
1892 
1893  // The following line may be required in some cases where there is no parser
1894  // or the parser does not has_b_frames correctly
1895  if (ist->st->codec->has_b_frames < ist->dec_ctx->has_b_frames) {
1896  if (ist->dec_ctx->codec_id == AV_CODEC_ID_H264) {
1897  ist->st->codec->has_b_frames = ist->dec_ctx->has_b_frames;
1898  } else
1900  ist->dec_ctx,
1901  "has_b_frames is larger in decoder than demuxer %d > %d ",
1902  ist->dec_ctx->has_b_frames,
1903  ist->st->codec->has_b_frames
1904  );
1905  }
1906 
1907  if (*got_output || ret<0 || pkt->size)
1908  decode_error_stat[ret<0] ++;
1909 
1910  if (!*got_output || ret < 0) {
1911  if (!pkt->size) {
1912  for (i = 0; i < ist->nb_filters; i++)
1913 #if 1
1914  av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1915 #else
1916  av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1917 #endif
1918  }
1919  return ret;
1920  }
1921 
1922  if(ist->top_field_first>=0)
1923  decoded_frame->top_field_first = ist->top_field_first;
1924 
1925  ist->frames_decoded++;
1926 
1927  if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
1928  err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
1929  if (err < 0)
1930  goto fail;
1931  }
1932  ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
1933 
1934  best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
1935  if(best_effort_timestamp != AV_NOPTS_VALUE)
1936  ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
1937 
1938  if (debug_ts) {
1939  av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
1940  "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",
1941  ist->st->index, av_ts2str(decoded_frame->pts),
1942  av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
1943  best_effort_timestamp,
1944  av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
1945  decoded_frame->key_frame, decoded_frame->pict_type,
1946  ist->st->time_base.num, ist->st->time_base.den);
1947  }
1948 
1949  pkt->size = 0;
1950 
1951  if (ist->st->sample_aspect_ratio.num)
1952  decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1953 
1954  resample_changed = ist->resample_width != decoded_frame->width ||
1955  ist->resample_height != decoded_frame->height ||
1956  ist->resample_pix_fmt != decoded_frame->format;
1957  if (resample_changed) {
1958  av_log(NULL, AV_LOG_INFO,
1959  "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1960  ist->file_index, ist->st->index,
1962  decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1963 
1964  ist->resample_width = decoded_frame->width;
1965  ist->resample_height = decoded_frame->height;
1966  ist->resample_pix_fmt = decoded_frame->format;
1967 
1968  for (i = 0; i < nb_filtergraphs; i++) {
1969  if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters &&
1970  configure_filtergraph(filtergraphs[i]) < 0) {
1971  av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1972  exit_program(1);
1973  }
1974  }
1975  }
1976 
1977  frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
1978  for (i = 0; i < ist->nb_filters; i++) {
1979  if (!frame_sample_aspect->num)
1980  *frame_sample_aspect = ist->st->sample_aspect_ratio;
1981 
1982  if (i < ist->nb_filters - 1) {
1983  f = ist->filter_frame;
1984  err = av_frame_ref(f, decoded_frame);
1985  if (err < 0)
1986  break;
1987  } else
1988  f = decoded_frame;
1990  if (ret == AVERROR_EOF) {
1991  ret = 0; /* ignore */
1992  } else if (ret < 0) {
1993  av_log(NULL, AV_LOG_FATAL,
1994  "Failed to inject frame into filter network: %s\n", av_err2str(ret));
1995  exit_program(1);
1996  }
1997  }
1998 
1999 fail:
2001  av_frame_unref(decoded_frame);
2002  return err < 0 ? err : ret;
2003 }
2004 
2005 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
2006 {
2007  AVSubtitle subtitle;
2008  int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
2009  &subtitle, got_output, pkt);
2010 
2011  if (*got_output || ret<0 || pkt->size)
2012  decode_error_stat[ret<0] ++;
2013 
2014  if (ret < 0 || !*got_output) {
2015  if (!pkt->size)
2016  sub2video_flush(ist);
2017  return ret;
2018  }
2019 
2020  if (ist->fix_sub_duration) {
2021  int end = 1;
2022  if (ist->prev_sub.got_output) {
2023  end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
2024  1000, AV_TIME_BASE);
2025  if (end < ist->prev_sub.subtitle.end_display_time) {
2026  av_log(ist->dec_ctx, AV_LOG_DEBUG,
2027  "Subtitle duration reduced from %d to %d%s\n",
2029  end <= 0 ? ", dropping it" : "");
2031  }
2032  }
2033  FFSWAP(int, *got_output, ist->prev_sub.got_output);
2034  FFSWAP(int, ret, ist->prev_sub.ret);
2035  FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
2036  if (end <= 0)
2037  goto out;
2038  }
2039 
2040  if (!*got_output)
2041  return ret;
2042 
2043  sub2video_update(ist, &subtitle);
2044 
2045  if (!subtitle.num_rects)
2046  goto out;
2047 
2048  ist->frames_decoded++;
2049 
2050  for (i = 0; i < nb_output_streams; i++) {
2051  OutputStream *ost = output_streams[i];
2052 
2053  if (!check_output_constraints(ist, ost) || !ost->encoding_needed
2054  || ost->enc->type != AVMEDIA_TYPE_SUBTITLE)
2055  continue;
2056 
2057  do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
2058  }
2059 
2060 out:
2061  avsubtitle_free(&subtitle);
2062  return ret;
2063 }
2064 
2065 /* pkt = NULL means EOF (needed to flush decoder buffers) */
2067 {
2068  int ret = 0, i;
2069  int got_output = 0;
2070 
2071  AVPacket avpkt;
2072  if (!ist->saw_first_ts) {
2073  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;
2074  ist->pts = 0;
2075  if (pkt && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
2076  ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
2077  ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
2078  }
2079  ist->saw_first_ts = 1;
2080  }
2081 
2082  if (ist->next_dts == AV_NOPTS_VALUE)
2083  ist->next_dts = ist->dts;
2084  if (ist->next_pts == AV_NOPTS_VALUE)
2085  ist->next_pts = ist->pts;
2086 
2087  if (!pkt) {
2088  /* EOF handling */
2089  av_init_packet(&avpkt);
2090  avpkt.data = NULL;
2091  avpkt.size = 0;
2092  goto handle_eof;
2093  } else {
2094  avpkt = *pkt;
2095  }
2096 
2097  if (pkt->dts != AV_NOPTS_VALUE) {
2098  ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
2099  if (ist->dec_ctx->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
2100  ist->next_pts = ist->pts = ist->dts;
2101  }
2102 
2103  // while we have more to decode or while the decoder did output something on EOF
2104  while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
2105  int duration;
2106  handle_eof:
2107 
2108  ist->pts = ist->next_pts;
2109  ist->dts = ist->next_dts;
2110 
2111  if (avpkt.size && avpkt.size != pkt->size &&
2112  !(ist->dec->capabilities & CODEC_CAP_SUBFRAMES)) {
2114  "Multiple frames in a packet from stream %d\n", pkt->stream_index);
2115  ist->showed_multi_packet_warning = 1;
2116  }
2117 
2118  switch (ist->dec_ctx->codec_type) {
2119  case AVMEDIA_TYPE_AUDIO:
2120  ret = decode_audio (ist, &avpkt, &got_output);
2121  break;
2122  case AVMEDIA_TYPE_VIDEO:
2123  ret = decode_video (ist, &avpkt, &got_output);
2124  if (avpkt.duration) {
2125  duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
2126  } else if(ist->dec_ctx->framerate.num != 0 && ist->dec_ctx->framerate.den != 0) {
2128  duration = ((int64_t)AV_TIME_BASE *
2129  ist->dec_ctx->framerate.den * ticks) /
2131  } else
2132  duration = 0;
2133 
2134  if(ist->dts != AV_NOPTS_VALUE && duration) {
2135  ist->next_dts += duration;
2136  }else
2137  ist->next_dts = AV_NOPTS_VALUE;
2138 
2139  if (got_output)
2140  ist->next_pts += duration; //FIXME the duration is not correct in some cases
2141  break;
2142  case AVMEDIA_TYPE_SUBTITLE:
2143  ret = transcode_subtitles(ist, &avpkt, &got_output);
2144  break;
2145  default:
2146  return -1;
2147  }
2148 
2149  if (ret < 0)
2150  return ret;
2151 
2152  avpkt.dts=
2153  avpkt.pts= AV_NOPTS_VALUE;
2154 
2155  // touch data and size only if not EOF
2156  if (pkt) {
2158  ret = avpkt.size;
2159  avpkt.data += ret;
2160  avpkt.size -= ret;
2161  }
2162  if (!got_output) {
2163  continue;
2164  }
2165  if (got_output && !pkt)
2166  break;
2167  }
2168 
2169  /* handle stream copy */
2170  if (!ist->decoding_needed) {
2171  ist->dts = ist->next_dts;
2172  switch (ist->dec_ctx->codec_type) {
2173  case AVMEDIA_TYPE_AUDIO:
2174  ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
2175  ist->dec_ctx->sample_rate;
2176  break;
2177  case AVMEDIA_TYPE_VIDEO:
2178  if (ist->framerate.num) {
2179  // TODO: Remove work-around for c99-to-c89 issue 7
2180  AVRational time_base_q = AV_TIME_BASE_Q;
2181  int64_t next_dts = av_rescale_q(ist->next_dts, time_base_q, av_inv_q(ist->framerate));
2182  ist->next_dts = av_rescale_q(next_dts + 1, av_inv_q(ist->framerate), time_base_q);
2183  } else if (pkt->duration) {
2184  ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
2185  } else if(ist->dec_ctx->framerate.num != 0) {
2186  int ticks= av_stream_get_parser(ist->st) ? av_stream_get_parser(ist->st)->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
2187  ist->next_dts += ((int64_t)AV_TIME_BASE *
2188  ist->dec_ctx->framerate.den * ticks) /
2190  }
2191  break;
2192  }
2193  ist->pts = ist->dts;
2194  ist->next_pts = ist->next_dts;
2195  }
2196  for (i = 0; pkt && i < nb_output_streams; i++) {
2197  OutputStream *ost = output_streams[i];
2198 
2199  if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2200  continue;
2201 
2202  do_streamcopy(ist, ost, pkt);
2203  }
2204 
2205  return got_output;
2206 }
2207 
2208 static void print_sdp(void)
2209 {
2210  char sdp[16384];
2211  int i;
2212  AVFormatContext **avc = av_malloc_array(nb_output_files, sizeof(*avc));
2213 
2214  if (!avc)
2215  exit_program(1);
2216  for (i = 0; i < nb_output_files; i++)
2217  avc[i] = output_files[i]->ctx;
2218 
2219  av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
2220  printf("SDP:\n%s\n", sdp);
2221  fflush(stdout);
2222  av_freep(&avc);
2223 }
2224 
2226 {
2227  int i;
2228  for (i = 0; hwaccels[i].name; i++)
2229  if (hwaccels[i].pix_fmt == pix_fmt)
2230  return &hwaccels[i];
2231  return NULL;
2232 }
2233 
2234 static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
2235 {
2236  InputStream *ist = s->opaque;
2237  const enum AVPixelFormat *p;
2238  int ret;
2239 
2240  for (p = pix_fmts; *p != -1; p++) {
2241  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
2242  const HWAccel *hwaccel;
2243 
2244  if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
2245  break;
2246 
2247  hwaccel = get_hwaccel(*p);
2248  if (!hwaccel ||
2249  (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
2250  (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
2251  continue;
2252 
2253  ret = hwaccel->init(s);
2254  if (ret < 0) {
2255  if (ist->hwaccel_id == hwaccel->id) {
2256  av_log(NULL, AV_LOG_FATAL,
2257  "%s hwaccel requested for input stream #%d:%d, "
2258  "but cannot be initialized.\n", hwaccel->name,
2259  ist->file_index, ist->st->index);
2260  exit_program(1);
2261  }
2262  continue;
2263  }
2264  ist->active_hwaccel_id = hwaccel->id;
2265  ist->hwaccel_pix_fmt = *p;
2266  break;
2267  }
2268 
2269  return *p;
2270 }
2271 
2273 {
2274  InputStream *ist = s->opaque;
2275 
2276  if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
2277  return ist->hwaccel_get_buffer(s, frame, flags);
2278 
2279  return avcodec_default_get_buffer2(s, frame, flags);
2280 }
2281 
2282 static int init_input_stream(int ist_index, char *error, int error_len)
2283 {
2284  int ret;
2285  InputStream *ist = input_streams[ist_index];
2286 
2287  if (ist->decoding_needed) {
2288  AVCodec *codec = ist->dec;
2289  if (!codec) {
2290  snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
2291  avcodec_get_name(ist->dec_ctx->codec_id), ist->file_index, ist->st->index);
2292  return AVERROR(EINVAL);
2293  }
2294 
2295  ist->dec_ctx->opaque = ist;
2296  ist->dec_ctx->get_format = get_format;
2297  ist->dec_ctx->get_buffer2 = get_buffer;
2298  ist->dec_ctx->thread_safe_callbacks = 1;
2299 
2300  av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
2301  if (ist->dec_ctx->codec_id == AV_CODEC_ID_DVB_SUBTITLE &&
2302  (ist->decoding_needed & DECODING_FOR_OST)) {
2303  av_dict_set(&ist->decoder_opts, "compute_edt", "1", AV_DICT_DONT_OVERWRITE);
2305  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");
2306  }
2307 
2308  if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
2309  av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
2310  if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
2311  if (ret == AVERROR_EXPERIMENTAL)
2312  abort_codec_experimental(codec, 0);
2313 
2314  snprintf(error, error_len,
2315  "Error while opening decoder for input stream "
2316  "#%d:%d : %s",
2317  ist->file_index, ist->st->index, av_err2str(ret));
2318  return ret;
2319  }
2321  }
2322 
2323  ist->next_pts = AV_NOPTS_VALUE;
2324  ist->next_dts = AV_NOPTS_VALUE;
2325 
2326  return 0;
2327 }
2328 
2330 {
2331  if (ost->source_index >= 0)
2332  return input_streams[ost->source_index];
2333  return NULL;
2334 }
2335 
2336 static int compare_int64(const void *a, const void *b)
2337 {
2338  int64_t va = *(int64_t *)a, vb = *(int64_t *)b;
2339  return va < vb ? -1 : va > vb ? +1 : 0;
2340 }
2341 
2342 static void parse_forced_key_frames(char *kf, OutputStream *ost,
2343  AVCodecContext *avctx)
2344 {
2345  char *p;
2346  int n = 1, i, size, index = 0;
2347  int64_t t, *pts;
2348 
2349  for (p = kf; *p; p++)
2350  if (*p == ',')
2351  n++;
2352  size = n;
2353  pts = av_malloc_array(size, sizeof(*pts));
2354  if (!pts) {
2355  av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2356  exit_program(1);
2357  }
2358 
2359  p = kf;
2360  for (i = 0; i < n; i++) {
2361  char *next = strchr(p, ',');
2362 
2363  if (next)
2364  *next++ = 0;
2365 
2366  if (!memcmp(p, "chapters", 8)) {
2367 
2368  AVFormatContext *avf = output_files[ost->file_index]->ctx;
2369  int j;
2370 
2371  if (avf->nb_chapters > INT_MAX - size ||
2372  !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
2373  sizeof(*pts)))) {
2374  av_log(NULL, AV_LOG_FATAL,
2375  "Could not allocate forced key frames array.\n");
2376  exit_program(1);
2377  }
2378  t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
2379  t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2380 
2381  for (j = 0; j < avf->nb_chapters; j++) {
2382  AVChapter *c = avf->chapters[j];
2383  av_assert1(index < size);
2384  pts[index++] = av_rescale_q(c->start, c->time_base,
2385  avctx->time_base) + t;
2386  }
2387 
2388  } else {
2389 
2390  t = parse_time_or_die("force_key_frames", p, 1);
2391  av_assert1(index < size);
2392  pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2393 
2394  }
2395 
2396  p = next;
2397  }
2398 
2399  av_assert0(index == size);
2400  qsort(pts, size, sizeof(*pts), compare_int64);
2401  ost->forced_kf_count = size;
2402  ost->forced_kf_pts = pts;
2403 }
2404 
2405 static void report_new_stream(int input_index, AVPacket *pkt)
2406 {
2407  InputFile *file = input_files[input_index];
2408  AVStream *st = file->ctx->streams[pkt->stream_index];
2409 
2410  if (pkt->stream_index < file->nb_streams_warn)
2411  return;
2412  av_log(file->ctx, AV_LOG_WARNING,
2413  "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
2415  input_index, pkt->stream_index,
2416  pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
2417  file->nb_streams_warn = pkt->stream_index + 1;
2418 }
2419 
2421 {
2422  AVDictionaryEntry *e;
2423 
2424  uint8_t *encoder_string;
2425  int encoder_string_len;
2426  int format_flags = 0;
2427  int codec_flags = 0;
2428 
2429  if (av_dict_get(ost->st->metadata, "encoder", NULL, 0))
2430  return;
2431 
2432  e = av_dict_get(of->opts, "fflags", NULL, 0);
2433  if (e) {
2434  const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
2435  if (!o)
2436  return;
2437  av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
2438  }
2439  e = av_dict_get(ost->encoder_opts, "flags", NULL, 0);
2440  if (e) {
2441  const AVOption *o = av_opt_find(ost->enc_ctx, "flags", NULL, 0, 0);
2442  if (!o)
2443  return;
2444  av_opt_eval_flags(ost->enc_ctx, o, e->value, &codec_flags);
2445  }
2446 
2447  encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
2448  encoder_string = av_mallocz(encoder_string_len);
2449  if (!encoder_string)
2450  exit_program(1);
2451 
2452  if (!(format_flags & AVFMT_FLAG_BITEXACT) && !(codec_flags & CODEC_FLAG_BITEXACT))
2453  av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
2454  else
2455  av_strlcpy(encoder_string, "Lavc ", encoder_string_len);
2456  av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
2457  av_dict_set(&ost->st->metadata, "encoder", encoder_string,
2459 }
2460 
2461 static int transcode_init(void)
2462 {
2463  int ret = 0, i, j, k;
2464  AVFormatContext *oc;
2465  OutputStream *ost;
2466  InputStream *ist;
2467  char error[1024];
2468  int want_sdp = 1;
2469 
2470  for (i = 0; i < nb_filtergraphs; i++) {
2471  FilterGraph *fg = filtergraphs[i];
2472  for (j = 0; j < fg->nb_outputs; j++) {
2473  OutputFilter *ofilter = fg->outputs[j];
2474  if (!ofilter->ost || ofilter->ost->source_index >= 0)
2475  continue;
2476  if (fg->nb_inputs != 1)
2477  continue;
2478  for (k = nb_input_streams-1; k >= 0 ; k--)
2479  if (fg->inputs[0]->ist == input_streams[k])
2480  break;
2481  ofilter->ost->source_index = k;
2482  }
2483  }
2484 
2485  /* init framerate emulation */
2486  for (i = 0; i < nb_input_files; i++) {
2487  InputFile *ifile = input_files[i];
2488  if (ifile->rate_emu)
2489  for (j = 0; j < ifile->nb_streams; j++)
2490  input_streams[j + ifile->ist_index]->start = av_gettime_relative();
2491  }
2492 
2493  /* output stream init */
2494  for (i = 0; i < nb_output_files; i++) {
2495  oc = output_files[i]->ctx;
2496  if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2497  av_dump_format(oc, i, oc->filename, 1);
2498  av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2499  return AVERROR(EINVAL);
2500  }
2501  }
2502 
2503  /* init complex filtergraphs */
2504  for (i = 0; i < nb_filtergraphs; i++)
2505  if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2506  return ret;
2507 
2508  /* for each output stream, we compute the right encoding parameters */
2509  for (i = 0; i < nb_output_streams; i++) {
2510  AVCodecContext *enc_ctx;
2511  AVCodecContext *dec_ctx = NULL;
2512  ost = output_streams[i];
2513  oc = output_files[ost->file_index]->ctx;
2514  ist = get_input_stream(ost);
2515 
2516  if (ost->attachment_filename)
2517  continue;
2518 
2519  enc_ctx = ost->enc_ctx;
2520 
2521  if (ist) {
2522  dec_ctx = ist->dec_ctx;
2523 
2524  ost->st->disposition = ist->st->disposition;
2525  enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
2526  enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
2527  } else {
2528  for (j=0; j<oc->nb_streams; j++) {
2529  AVStream *st = oc->streams[j];
2530  if (st != ost->st && st->codec->codec_type == enc_ctx->codec_type)
2531  break;
2532  }
2533  if (j == oc->nb_streams)
2534  if (enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO || enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
2536  }
2537 
2538  if (ost->stream_copy) {
2539  AVRational sar;
2540  uint64_t extra_size;
2541 
2542  av_assert0(ist && !ost->filter);
2543 
2544  extra_size = (uint64_t)dec_ctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2545 
2546  if (extra_size > INT_MAX) {
2547  return AVERROR(EINVAL);
2548  }
2549 
2550  /* if stream_copy is selected, no need to decode or encode */
2551  enc_ctx->codec_id = dec_ctx->codec_id;
2552  enc_ctx->codec_type = dec_ctx->codec_type;
2553 
2554  if (!enc_ctx->codec_tag) {
2555  unsigned int codec_tag;
2556  if (!oc->oformat->codec_tag ||
2557  av_codec_get_id (oc->oformat->codec_tag, dec_ctx->codec_tag) == enc_ctx->codec_id ||
2558  !av_codec_get_tag2(oc->oformat->codec_tag, dec_ctx->codec_id, &codec_tag))
2559  enc_ctx->codec_tag = dec_ctx->codec_tag;
2560  }
2561 
2562  enc_ctx->bit_rate = dec_ctx->bit_rate;
2563  enc_ctx->rc_max_rate = dec_ctx->rc_max_rate;
2564  enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size;
2565  enc_ctx->field_order = dec_ctx->field_order;
2566  enc_ctx->extradata = av_mallocz(extra_size);
2567  if (!enc_ctx->extradata) {
2568  return AVERROR(ENOMEM);
2569  }
2570  memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
2571  enc_ctx->extradata_size= dec_ctx->extradata_size;
2572  enc_ctx->bits_per_coded_sample = dec_ctx->bits_per_coded_sample;
2573 
2574  enc_ctx->time_base = ist->st->time_base;
2575  /*
2576  * Avi is a special case here because it supports variable fps but
2577  * having the fps and timebase differe significantly adds quite some
2578  * overhead
2579  */
2580  if(!strcmp(oc->oformat->name, "avi")) {
2581  if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
2582  && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
2583  && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(dec_ctx->time_base)
2584  && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(dec_ctx->time_base) < 1.0/500
2585  || copy_tb==2){
2586  enc_ctx->time_base.num = ist->st->r_frame_rate.den;
2587  enc_ctx->time_base.den = 2*ist->st->r_frame_rate.num;
2588  enc_ctx->ticks_per_frame = 2;
2589  } else if ( copy_tb<0 && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > 2*av_q2d(ist->st->time_base)
2590  && av_q2d(ist->st->time_base) < 1.0/500
2591  || copy_tb==0){
2592  enc_ctx->time_base = dec_ctx->time_base;
2593  enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
2594  enc_ctx->time_base.den *= 2;
2595  enc_ctx->ticks_per_frame = 2;
2596  }
2597  } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
2598  && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
2599  && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
2600  && strcmp(oc->oformat->name, "f4v")
2601  ) {
2602  if( copy_tb<0 && dec_ctx->time_base.den
2603  && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > av_q2d(ist->st->time_base)
2604  && av_q2d(ist->st->time_base) < 1.0/500
2605  || copy_tb==0){
2606  enc_ctx->time_base = dec_ctx->time_base;
2607  enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
2608  }
2609  }
2610  if ( enc_ctx->codec_tag == AV_RL32("tmcd")
2611  && dec_ctx->time_base.num < dec_ctx->time_base.den
2612  && dec_ctx->time_base.num > 0
2613  && 121LL*dec_ctx->time_base.num > dec_ctx->time_base.den) {
2614  enc_ctx->time_base = dec_ctx->time_base;
2615  }
2616 
2617  if (ist && !ost->frame_rate.num)
2618  ost->frame_rate = ist->framerate;
2619  if(ost->frame_rate.num)
2620  enc_ctx->time_base = av_inv_q(ost->frame_rate);
2621 
2622  av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den,
2623  enc_ctx->time_base.num, enc_ctx->time_base.den, INT_MAX);
2624 
2625  ost->parser = av_parser_init(enc_ctx->codec_id);
2626 
2627  switch (enc_ctx->codec_type) {
2628  case AVMEDIA_TYPE_AUDIO:
2629  if (audio_volume != 256) {
2630  av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2631  exit_program(1);
2632  }
2633  enc_ctx->channel_layout = dec_ctx->channel_layout;
2634  enc_ctx->sample_rate = dec_ctx->sample_rate;
2635  enc_ctx->channels = dec_ctx->channels;
2636  enc_ctx->frame_size = dec_ctx->frame_size;
2637  enc_ctx->audio_service_type = dec_ctx->audio_service_type;
2638  enc_ctx->block_align = dec_ctx->block_align;
2639  enc_ctx->initial_padding = dec_ctx->delay;
2640 #if FF_API_AUDIOENC_DELAY
2641  enc_ctx->delay = dec_ctx->delay;
2642 #endif
2643  if((enc_ctx->block_align == 1 || enc_ctx->block_align == 1152 || enc_ctx->block_align == 576) && enc_ctx->codec_id == AV_CODEC_ID_MP3)
2644  enc_ctx->block_align= 0;
2645  if(enc_ctx->codec_id == AV_CODEC_ID_AC3)
2646  enc_ctx->block_align= 0;
2647  break;
2648  case AVMEDIA_TYPE_VIDEO:
2649  enc_ctx->pix_fmt = dec_ctx->pix_fmt;
2650  enc_ctx->width = dec_ctx->width;
2651  enc_ctx->height = dec_ctx->height;
2652  enc_ctx->has_b_frames = dec_ctx->has_b_frames;
2653  if (ost->frame_aspect_ratio.num) { // overridden by the -aspect cli option
2654  sar =
2656  (AVRational){ enc_ctx->height, enc_ctx->width });
2657  av_log(NULL, AV_LOG_WARNING, "Overriding aspect ratio "
2658  "with stream copy may produce invalid files\n");
2659  }
2660  else if (ist->st->sample_aspect_ratio.num)
2661  sar = ist->st->sample_aspect_ratio;
2662  else
2663  sar = dec_ctx->sample_aspect_ratio;
2664  ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio = sar;
2665  ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2666  break;
2667  case AVMEDIA_TYPE_SUBTITLE:
2668  enc_ctx->width = dec_ctx->width;
2669  enc_ctx->height = dec_ctx->height;
2670  break;
2671  case AVMEDIA_TYPE_DATA:
2673  break;
2674  default:
2675  abort();
2676  }
2677  } else {
2678  if (!ost->enc)
2679  ost->enc = avcodec_find_encoder(enc_ctx->codec_id);
2680  if (!ost->enc) {
2681  /* should only happen when a default codec is not present. */
2682  snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2683  avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2684  ret = AVERROR(EINVAL);
2685  goto dump_format;
2686  }
2687 
2688  if (ist)
2690  ost->encoding_needed = 1;
2691 
2692  set_encoder_id(output_files[ost->file_index], ost);
2693 
2694  if (!ost->filter &&
2695  (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
2696  enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO)) {
2697  FilterGraph *fg;
2698  fg = init_simple_filtergraph(ist, ost);
2699  if (configure_filtergraph(fg)) {
2700  av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2701  exit_program(1);
2702  }
2703  }
2704 
2705  if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
2706  if (ost->filter && !ost->frame_rate.num)
2708  if (ist && !ost->frame_rate.num)
2709  ost->frame_rate = ist->framerate;
2710  if (ist && !ost->frame_rate.num)
2711  ost->frame_rate = ist->st->r_frame_rate;
2712  if (ist && !ost->frame_rate.num) {
2713  ost->frame_rate = (AVRational){25, 1};
2714  av_log(NULL, AV_LOG_WARNING,
2715  "No information "
2716  "about the input framerate is available. Falling "
2717  "back to a default value of 25fps for output stream #%d:%d. Use the -r option "
2718  "if you want a different framerate.\n",
2719  ost->file_index, ost->index);
2720  }
2721 // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2722  if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2724  ost->frame_rate = ost->enc->supported_framerates[idx];
2725  }
2726  if (enc_ctx->codec_id == AV_CODEC_ID_MPEG4) {
2727  av_reduce(&ost->frame_rate.num, &ost->frame_rate.den,
2728  ost->frame_rate.num, ost->frame_rate.den, 65535);
2729  }
2730  }
2731 
2732  switch (enc_ctx->codec_type) {
2733  case AVMEDIA_TYPE_AUDIO:
2734  enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format;
2735  enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2736  enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2737  enc_ctx->channels = avfilter_link_get_channels(ost->filter->filter->inputs[0]);
2738  enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
2739  break;
2740  case AVMEDIA_TYPE_VIDEO:
2741  enc_ctx->time_base = av_inv_q(ost->frame_rate);
2742  if (ost->filter && !(enc_ctx->time_base.num && enc_ctx->time_base.den))
2743  enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
2744  if ( av_q2d(enc_ctx->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
2746  av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
2747  "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
2748  }
2749  for (j = 0; j < ost->forced_kf_count; j++)
2750  ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2752  enc_ctx->time_base);
2753 
2754  enc_ctx->width = ost->filter->filter->inputs[0]->w;
2755  enc_ctx->height = ost->filter->filter->inputs[0]->h;
2756  enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2757  ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option
2758  av_mul_q(ost->frame_aspect_ratio, (AVRational){ enc_ctx->height, enc_ctx->width }) :
2760  if (!strncmp(ost->enc->name, "libx264", 7) &&
2761  enc_ctx->pix_fmt == AV_PIX_FMT_NONE &&
2763  av_log(NULL, AV_LOG_WARNING,
2764  "No pixel format specified, %s for H.264 encoding chosen.\n"
2765  "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2767  if (!strncmp(ost->enc->name, "mpeg2video", 10) &&
2768  enc_ctx->pix_fmt == AV_PIX_FMT_NONE &&
2770  av_log(NULL, AV_LOG_WARNING,
2771  "No pixel format specified, %s for MPEG-2 encoding chosen.\n"
2772  "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2774  enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
2775 
2776  ost->st->avg_frame_rate = ost->frame_rate;
2777 
2778  if (!dec_ctx ||
2779  enc_ctx->width != dec_ctx->width ||
2780  enc_ctx->height != dec_ctx->height ||
2781  enc_ctx->pix_fmt != dec_ctx->pix_fmt) {
2782  enc_ctx->bits_per_raw_sample = frame_bits_per_raw_sample;
2783  }
2784 
2785  if (ost->forced_keyframes) {
2786  if (!strncmp(ost->forced_keyframes, "expr:", 5)) {
2788  forced_keyframes_const_names, NULL, NULL, NULL, NULL, 0, NULL);
2789  if (ret < 0) {
2790  av_log(NULL, AV_LOG_ERROR,
2791  "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5);
2792  return ret;
2793  }
2798  } else {
2800  }
2801  }
2802  break;
2803  case AVMEDIA_TYPE_SUBTITLE:
2804  enc_ctx->time_base = (AVRational){1, 1000};
2805  if (!enc_ctx->width) {
2806  enc_ctx->width = input_streams[ost->source_index]->st->codec->width;
2807  enc_ctx->height = input_streams[ost->source_index]->st->codec->height;
2808  }
2809  break;
2810  default:
2811  abort();
2812  break;
2813  }
2814  /* two pass mode */
2815  if (enc_ctx->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
2816  char logfilename[1024];
2817  FILE *f;
2818 
2819  snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2820  ost->logfile_prefix ? ost->logfile_prefix :
2822  i);
2823  if (!strcmp(ost->enc->name, "libx264")) {
2824  av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2825  } else {
2826  if (enc_ctx->flags & CODEC_FLAG_PASS2) {
2827  char *logbuffer;
2828  size_t logbuffer_size;
2829  if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2830  av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2831  logfilename);
2832  exit_program(1);
2833  }
2834  enc_ctx->stats_in = logbuffer;
2835  }
2836  if (enc_ctx->flags & CODEC_FLAG_PASS1) {
2837  f = av_fopen_utf8(logfilename, "wb");
2838  if (!f) {
2839  av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2840  logfilename, strerror(errno));
2841  exit_program(1);
2842  }
2843  ost->logfile = f;
2844  }
2845  }
2846  }
2847  }
2848  }
2849 
2850  /* open each encoder */
2851  for (i = 0; i < nb_output_streams; i++) {
2852  ost = output_streams[i];
2853  if (ost->encoding_needed) {
2854  AVCodec *codec = ost->enc;
2855  AVCodecContext *dec = NULL;
2856 
2857  if ((ist = get_input_stream(ost)))
2858  dec = ist->dec_ctx;
2859  if (dec && dec->subtitle_header) {
2860  /* ASS code assumes this buffer is null terminated so add extra byte. */
2861  ost->enc_ctx->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
2862  if (!ost->enc_ctx->subtitle_header) {
2863  ret = AVERROR(ENOMEM);
2864  goto dump_format;
2865  }
2866  memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2867  ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
2868  }
2869  if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
2870  av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
2871  av_dict_set(&ost->encoder_opts, "side_data_only_packets", "1", 0);
2872 
2873  if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
2874  if (ret == AVERROR_EXPERIMENTAL)
2875  abort_codec_experimental(codec, 1);
2876  snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2877  ost->file_index, ost->index);
2878  goto dump_format;
2879  }
2880  if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
2881  !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
2882  av_buffersink_set_frame_size(ost->filter->filter,
2883  ost->enc_ctx->frame_size);
2884  assert_avoptions(ost->encoder_opts);
2885  if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000)
2886  av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2887  " It takes bits/s as argument, not kbits/s\n");
2888  } else {
2889  ret = av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts);
2890  if (ret < 0) {
2891  av_log(NULL, AV_LOG_FATAL,
2892  "Error setting up codec context options.\n");
2893  return ret;
2894  }
2895  }
2896 
2897  ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx);
2898  if (ret < 0) {
2899  av_log(NULL, AV_LOG_FATAL,
2900  "Error initializing the output stream codec context.\n");
2901  exit_program(1);
2902  }
2903  ost->st->codec->codec= ost->enc_ctx->codec;
2904 
2905  // copy timebase while removing common factors
2906  ost->st->time_base = av_add_q(ost->enc_ctx->time_base, (AVRational){0, 1});
2907  }
2908 
2909  /* init input streams */
2910  for (i = 0; i < nb_input_streams; i++)
2911  if ((ret = init_input_stream(i, error, sizeof(error))) < 0) {
2912  for (i = 0; i < nb_output_streams; i++) {
2913  ost = output_streams[i];
2914  avcodec_close(ost->enc_ctx);
2915  }
2916  goto dump_format;
2917  }
2918 
2919  /* discard unused programs */
2920  for (i = 0; i < nb_input_files; i++) {
2921  InputFile *ifile = input_files[i];
2922  for (j = 0; j < ifile->ctx->nb_programs; j++) {
2923  AVProgram *p = ifile->ctx->programs[j];
2924  int discard = AVDISCARD_ALL;
2925 
2926  for (k = 0; k < p->nb_stream_indexes; k++)
2927  if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2928  discard = AVDISCARD_DEFAULT;
2929  break;
2930  }
2931  p->discard = discard;
2932  }
2933  }
2934 
2935  /* open files and write file headers */
2936  for (i = 0; i < nb_output_files; i++) {
2937  oc = output_files[i]->ctx;
2938  oc->interrupt_callback = int_cb;
2939  if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2940  snprintf(error, sizeof(error),
2941  "Could not write header for output file #%d "
2942  "(incorrect codec parameters ?): %s",
2943  i, av_err2str(ret));
2944  ret = AVERROR(EINVAL);
2945  goto dump_format;
2946  }
2947 // assert_avoptions(output_files[i]->opts);
2948  if (strcmp(oc->oformat->name, "rtp")) {
2949  want_sdp = 0;
2950  }
2951  }
2952 
2953  dump_format:
2954  /* dump the file output parameters - cannot be done before in case
2955  of stream copy */
2956  for (i = 0; i < nb_output_files; i++) {
2957  av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2958  }
2959 
2960  /* dump the stream mapping */
2961  av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2962  for (i = 0; i < nb_input_streams; i++) {
2963  ist = input_streams[i];
2964 
2965  for (j = 0; j < ist->nb_filters; j++) {
2966  if (ist->filters[j]->graph->graph_desc) {
2967  av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2968  ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2969  ist->filters[j]->name);
2970  if (nb_filtergraphs > 1)
2971  av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2972  av_log(NULL, AV_LOG_INFO, "\n");
2973  }
2974  }
2975  }
2976 
2977  for (i = 0; i < nb_output_streams; i++) {
2978  ost = output_streams[i];
2979 
2980  if (ost->attachment_filename) {
2981  /* an attached file */
2982  av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2983  ost->attachment_filename, ost->file_index, ost->index);
2984  continue;
2985  }
2986 
2987  if (ost->filter && ost->filter->graph->graph_desc) {
2988  /* output from a complex graph */
2989  av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2990  if (nb_filtergraphs > 1)
2991  av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2992 
2993  av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2994  ost->index, ost->enc ? ost->enc->name : "?");
2995  continue;
2996  }
2997 
2998  av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2999  input_streams[ost->source_index]->file_index,
3000  input_streams[ost->source_index]->st->index,
3001  ost->file_index,
3002  ost->index);
3003  if (ost->sync_ist != input_streams[ost->source_index])
3004  av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
3005  ost->sync_ist->file_index,
3006  ost->sync_ist->st->index);
3007  if (ost->stream_copy)
3008  av_log(NULL, AV_LOG_INFO, " (copy)");
3009  else {
3010  const AVCodec *in_codec = input_streams[ost->source_index]->dec;
3011  const AVCodec *out_codec = ost->enc;
3012  const char *decoder_name = "?";
3013  const char *in_codec_name = "?";
3014  const char *encoder_name = "?";
3015  const char *out_codec_name = "?";
3016 
3017  if (in_codec) {
3018  decoder_name = in_codec->name;
3019  in_codec_name = avcodec_descriptor_get(in_codec->id)->name;
3020  if (!strcmp(decoder_name, in_codec_name))
3021  decoder_name = "native";
3022  }
3023 
3024  if (out_codec) {
3025  encoder_name = out_codec->name;
3026  out_codec_name = avcodec_descriptor_get(out_codec->id)->name;
3027  if (!strcmp(encoder_name, out_codec_name))
3028  encoder_name = "native";
3029  }
3030 
3031  av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
3032  in_codec_name, decoder_name,
3033  out_codec_name, encoder_name);
3034  }
3035  av_log(NULL, AV_LOG_INFO, "\n");
3036  }
3037 
3038  if (ret) {
3039  av_log(NULL, AV_LOG_ERROR, "%s\n", error);
3040  return ret;
3041  }
3042 
3043  if (want_sdp) {
3044  print_sdp();
3045  }
3046 
3047  transcode_init_done = 1;
3048 
3049  return 0;
3050 }
3051 
3052 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
3053 static int need_output(void)
3054 {
3055  int i;
3056 
3057  for (i = 0; i < nb_output_streams; i++) {
3058  OutputStream *ost = output_streams[i];
3059  OutputFile *of = output_files[ost->file_index];
3060  AVFormatContext *os = output_files[ost->file_index]->ctx;
3061 
3062  if (ost->finished ||
3063  (os->pb && avio_tell(os->pb) >= of->limit_filesize))
3064  continue;
3065  if (ost->frame_number >= ost->max_frames) {
3066  int j;
3067  for (j = 0; j < of->ctx->nb_streams; j++)
3068  close_output_stream(output_streams[of->ost_index + j]);
3069  continue;
3070  }
3071 
3072  return 1;
3073  }
3074 
3075  return 0;
3076 }
3077 
3078 /**
3079  * Select the output stream to process.
3080  *
3081  * @return selected output stream, or NULL if none available
3082  */
3084 {
3085  int i;
3086  int64_t opts_min = INT64_MAX;
3087  OutputStream *ost_min = NULL;
3088 
3089  for (i = 0; i < nb_output_streams; i++) {
3090  OutputStream *ost = output_streams[i];
3091  int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
3092  AV_TIME_BASE_Q);
3093  if (!ost->unavailable && !ost->finished && opts < opts_min) {
3094  opts_min = opts;
3095  ost_min = ost;
3096  }
3097  }
3098  return ost_min;
3099 }
3100 
3102 {
3103  int i, ret, key;
3104  static int64_t last_time;
3105  if (received_nb_signals)
3106  return AVERROR_EXIT;
3107  /* read_key() returns 0 on EOF */
3108  if(cur_time - last_time >= 100000 && !run_as_daemon){
3109  key = read_key();
3110  last_time = cur_time;
3111  }else
3112  key = -1;
3113  if (key == 'q')
3114  return AVERROR_EXIT;
3115  if (key == '+') av_log_set_level(av_log_get_level()+10);
3116  if (key == '-') av_log_set_level(av_log_get_level()-10);
3117  if (key == 's') qp_hist ^= 1;
3118  if (key == 'h'){
3119  if (do_hex_dump){
3120  do_hex_dump = do_pkt_dump = 0;
3121  } else if(do_pkt_dump){
3122  do_hex_dump = 1;
3123  } else
3124  do_pkt_dump = 1;
3126  }
3127  if (key == 'c' || key == 'C'){
3128  char buf[4096], target[64], command[256], arg[256] = {0};
3129  double time;
3130  int k, n = 0;
3131  fprintf(stderr, "\nEnter command: <target>|all <time>|-1 <command>[ <argument>]\n");
3132  i = 0;
3133  while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
3134  if (k > 0)
3135  buf[i++] = k;
3136  buf[i] = 0;
3137  if (k > 0 &&
3138  (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
3139  av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
3140  target, time, command, arg);
3141  for (i = 0; i < nb_filtergraphs; i++) {
3142  FilterGraph *fg = filtergraphs[i];
3143  if (fg->graph) {
3144  if (time < 0) {
3145  ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
3146  key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
3147  fprintf(stderr, "Command reply for stream %d: ret:%d res:\n%s", i, ret, buf);
3148  } else if (key == 'c') {
3149  fprintf(stderr, "Queing commands only on filters supporting the specific command is unsupported\n");
3150  ret = AVERROR_PATCHWELCOME;
3151  } else {
3152  ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
3153  }
3154  }
3155  }
3156  } else {
3157  av_log(NULL, AV_LOG_ERROR,
3158  "Parse error, at least 3 arguments were expected, "
3159  "only %d given in string '%s'\n", n, buf);
3160  }
3161  }
3162  if (key == 'd' || key == 'D'){
3163  int debug=0;
3164  if(key == 'D') {
3165  debug = input_streams[0]->st->codec->debug<<1;
3166  if(!debug) debug = 1;
3167  while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
3168  debug += debug;
3169  }else
3170  if(scanf("%d", &debug)!=1)
3171  fprintf(stderr,"error parsing debug value\n");
3172  for(i=0;i<nb_input_streams;i++) {
3173  input_streams[i]->st->codec->debug = debug;
3174  }
3175  for(i=0;i<nb_output_streams;i++) {
3176  OutputStream *ost = output_streams[i];
3177  ost->enc_ctx->debug = debug;
3178  }
3179  if(debug) av_log_set_level(AV_LOG_DEBUG);
3180  fprintf(stderr,"debug=%d\n", debug);
3181  }
3182  if (key == '?'){
3183  fprintf(stderr, "key function\n"
3184  "? show this help\n"
3185  "+ increase verbosity\n"
3186  "- decrease verbosity\n"
3187  "c Send command to first matching filter supporting it\n"
3188  "C Send/Que command to all matching filters\n"
3189  "D cycle through available debug modes\n"
3190  "h dump packets/hex press to cycle through the 3 states\n"
3191  "q quit\n"
3192  "s Show QP histogram\n"
3193  );
3194  }
3195  return 0;
3196 }
3197 
3198 #if HAVE_PTHREADS
3199 static void *input_thread(void *arg)
3200 {
3201  InputFile *f = arg;
3202  int ret = 0;
3203 
3204  while (1) {
3205  AVPacket pkt;
3206  ret = av_read_frame(f->ctx, &pkt);
3207 
3208  if (ret == AVERROR(EAGAIN)) {
3209  av_usleep(10000);
3210  continue;
3211  }
3212  if (ret < 0) {
3213  av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
3214  break;
3215  }
3216  av_dup_packet(&pkt);
3217  ret = av_thread_message_queue_send(f->in_thread_queue, &pkt, 0);
3218  if (ret < 0) {
3219  if (ret != AVERROR_EOF)
3220  av_log(f->ctx, AV_LOG_ERROR,
3221  "Unable to send packet to main thread: %s\n",
3222  av_err2str(ret));
3223  av_free_packet(&pkt);
3224  av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
3225  break;
3226  }
3227  }
3228 
3229  return NULL;
3230 }
3231 
3232 static void free_input_threads(void)
3233 {
3234  int i;
3235 
3236  for (i = 0; i < nb_input_files; i++) {
3237  InputFile *f = input_files[i];
3238  AVPacket pkt;
3239 
3240  if (!f->in_thread_queue)
3241  continue;
3243  while (av_thread_message_queue_recv(f->in_thread_queue, &pkt, 0) >= 0)
3244  av_free_packet(&pkt);
3245 
3246  pthread_join(f->thread, NULL);
3247  f->joined = 1;
3248  av_thread_message_queue_free(&f->in_thread_queue);
3249  }
3250 }
3251 
3252 static int init_input_threads(void)
3253 {
3254  int i, ret;
3255 
3256  if (nb_input_files == 1)
3257  return 0;
3258 
3259  for (i = 0; i < nb_input_files; i++) {
3260  InputFile *f = input_files[i];
3261 
3262  if (f->ctx->pb ? !f->ctx->pb->seekable :
3263  strcmp(f->ctx->iformat->name, "lavfi"))
3264  f->non_blocking = 1;
3265  ret = av_thread_message_queue_alloc(&f->in_thread_queue,
3266  8, sizeof(AVPacket));
3267  if (ret < 0)
3268  return ret;
3269 
3270  if ((ret = pthread_create(&f->thread, NULL, input_thread, f))) {
3271  av_log(NULL, AV_LOG_ERROR, "pthread_create failed: %s. Try to increase `ulimit -v` or decrease `ulimit -s`.\n", strerror(ret));
3272  av_thread_message_queue_free(&f->in_thread_queue);
3273  return AVERROR(ret);
3274  }
3275  }
3276  return 0;
3277 }
3278 
3279 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
3280 {
3281  return av_thread_message_queue_recv(f->in_thread_queue, pkt,
3282  f->non_blocking ?
3284 }
3285 #endif
3286 
3288 {
3289  if (f->rate_emu) {
3290  int i;
3291  for (i = 0; i < f->nb_streams; i++) {
3292  InputStream *ist = input_streams[f->ist_index + i];
3293  int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
3294  int64_t now = av_gettime_relative() - ist->start;
3295  if (pts > now)
3296  return AVERROR(EAGAIN);
3297  }
3298  }
3299 
3300 #if HAVE_PTHREADS
3301  if (nb_input_files > 1)
3302  return get_input_packet_mt(f, pkt);
3303 #endif
3304  return av_read_frame(f->ctx, pkt);
3305 }
3306 
3307 static int got_eagain(void)
3308 {
3309  int i;
3310  for (i = 0; i < nb_output_streams; i++)
3311  if (output_streams[i]->unavailable)
3312  return 1;
3313  return 0;
3314 }
3315 
3316 static void reset_eagain(void)
3317 {
3318  int i;
3319  for (i = 0; i < nb_input_files; i++)
3320  input_files[i]->eagain = 0;
3321  for (i = 0; i < nb_output_streams; i++)
3322  output_streams[i]->unavailable = 0;
3323 }
3324 
3325 /*
3326  * Return
3327  * - 0 -- one packet was read and processed
3328  * - AVERROR(EAGAIN) -- no packets were available for selected file,
3329  * this function should be called again
3330  * - AVERROR_EOF -- this function should not be called again
3331  */
3332 static int process_input(int file_index)
3333 {
3334  InputFile *ifile = input_files[file_index];
3335  AVFormatContext *is;
3336  InputStream *ist;
3337  AVPacket pkt;
3338  int ret, i, j;
3339 
3340  is = ifile->ctx;
3341  ret = get_input_packet(ifile, &pkt);
3342 
3343  if (ret == AVERROR(EAGAIN)) {
3344  ifile->eagain = 1;
3345  return ret;
3346  }
3347  if (ret < 0) {
3348  if (ret != AVERROR_EOF) {
3349  print_error(is->filename, ret);
3350  if (exit_on_error)
3351  exit_program(1);
3352  }
3353 
3354  for (i = 0; i < ifile->nb_streams; i++) {
3355  ist = input_streams[ifile->ist_index + i];
3356  if (ist->decoding_needed) {
3357  ret = process_input_packet(ist, NULL);
3358  if (ret>0)
3359  return 0;
3360  }
3361 
3362  /* mark all outputs that don't go through lavfi as finished */
3363  for (j = 0; j < nb_output_streams; j++) {
3364  OutputStream *ost = output_streams[j];
3365 
3366  if (ost->source_index == ifile->ist_index + i &&
3367  (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
3368  finish_output_stream(ost);
3369  }
3370  }
3371 
3372  ifile->eof_reached = 1;
3373  return AVERROR(EAGAIN);
3374  }
3375 
3376  reset_eagain();
3377 
3378  if (do_pkt_dump) {
3380  is->streams[pkt.stream_index]);
3381  }
3382  /* the following test is needed in case new streams appear
3383  dynamically in stream : we ignore them */
3384  if (pkt.stream_index >= ifile->nb_streams) {
3385  report_new_stream(file_index, &pkt);
3386  goto discard_packet;
3387  }
3388 
3389  ist = input_streams[ifile->ist_index + pkt.stream_index];
3390 
3391  ist->data_size += pkt.size;
3392  ist->nb_packets++;
3393 
3394  if (ist->discard)
3395  goto discard_packet;
3396 
3397  if (debug_ts) {
3398  av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
3399  "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",
3403  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3404  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3405  av_ts2str(input_files[ist->file_index]->ts_offset),
3406  av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3407  }
3408 
3409  if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
3410  int64_t stime, stime2;
3411  // Correcting starttime based on the enabled streams
3412  // 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.
3413  // so we instead do it here as part of discontinuity handling
3414  if ( ist->next_dts == AV_NOPTS_VALUE
3415  && ifile->ts_offset == -is->start_time
3416  && (is->iformat->flags & AVFMT_TS_DISCONT)) {
3417  int64_t new_start_time = INT64_MAX;
3418  for (i=0; i<is->nb_streams; i++) {
3419  AVStream *st = is->streams[i];
3420  if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
3421  continue;
3422  new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
3423  }
3424  if (new_start_time > is->start_time) {
3425  av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
3426  ifile->ts_offset = -new_start_time;
3427  }
3428  }
3429 
3430  stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
3431  stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
3432  ist->wrap_correction_done = 1;
3433 
3434  if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
3435  pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
3436  ist->wrap_correction_done = 0;
3437  }
3438  if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
3439  pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
3440  ist->wrap_correction_done = 0;
3441  }
3442  }
3443 
3444  /* add the stream-global side data to the first packet */
3445  if (ist->nb_packets == 1) {
3446  if (ist->st->nb_side_data)
3448  for (i = 0; i < ist->st->nb_side_data; i++) {
3449  AVPacketSideData *src_sd = &ist->st->side_data[i];
3450  uint8_t *dst_data;
3451 
3452  if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
3453  continue;
3454 
3455  dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
3456  if (!dst_data)
3457  exit_program(1);
3458 
3459  memcpy(dst_data, src_sd->data, src_sd->size);
3460  }
3461  }
3462 
3463  if (pkt.dts != AV_NOPTS_VALUE)
3464  pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3465  if (pkt.pts != AV_NOPTS_VALUE)
3466  pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3467 
3468  if (pkt.pts != AV_NOPTS_VALUE)
3469  pkt.pts *= ist->ts_scale;
3470  if (pkt.dts != AV_NOPTS_VALUE)
3471  pkt.dts *= ist->ts_scale;
3472 
3473  if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
3475  pkt.dts != AV_NOPTS_VALUE && ist->next_dts == AV_NOPTS_VALUE && !copy_ts
3476  && (is->iformat->flags & AVFMT_TS_DISCONT) && ifile->last_ts != AV_NOPTS_VALUE) {
3477  int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3478  int64_t delta = pkt_dts - ifile->last_ts;
3479  if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3480  delta > 1LL*dts_delta_threshold*AV_TIME_BASE){
3481  ifile->ts_offset -= delta;
3482  av_log(NULL, AV_LOG_DEBUG,
3483  "Inter stream timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3484  delta, ifile->ts_offset);
3485  pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3486  if (pkt.pts != AV_NOPTS_VALUE)
3487  pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3488  }
3489  }
3490 
3491  if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
3493  pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
3494  !copy_ts) {
3495  int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3496  int64_t delta = pkt_dts - ist->next_dts;
3497  if (is->iformat->flags & AVFMT_TS_DISCONT) {
3498  if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3499  delta > 1LL*dts_delta_threshold*AV_TIME_BASE ||
3500  pkt_dts + AV_TIME_BASE/10 < FFMAX(ist->pts, ist->dts)) {
3501  ifile->ts_offset -= delta;
3502  av_log(NULL, AV_LOG_DEBUG,
3503  "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3504  delta, ifile->ts_offset);
3505  pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3506  if (pkt.pts != AV_NOPTS_VALUE)
3507  pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3508  }
3509  } else {
3510  if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3511  delta > 1LL*dts_error_threshold*AV_TIME_BASE) {
3512  av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
3513  pkt.dts = AV_NOPTS_VALUE;
3514  }
3515  if (pkt.pts != AV_NOPTS_VALUE){
3516  int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
3517  delta = pkt_pts - ist->next_dts;
3518  if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3519  delta > 1LL*dts_error_threshold*AV_TIME_BASE) {
3520  av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
3521  pkt.pts = AV_NOPTS_VALUE;
3522  }
3523  }
3524  }
3525  }
3526 
3527  if (pkt.dts != AV_NOPTS_VALUE)
3528  ifile->last_ts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3529 
3530  if (debug_ts) {
3531  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",
3533  av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3534  av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3535  av_ts2str(input_files[ist->file_index]->ts_offset),
3536  av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3537  }
3538 
3539  sub2video_heartbeat(ist, pkt.pts);
3540 
3541  ret = process_input_packet(ist, &pkt);
3542  if (ret < 0) {
3543  av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
3544  ist->file_index, ist->st->index, av_err2str(ret));
3545  if (exit_on_error)
3546  exit_program(1);
3547  }
3548 
3549 discard_packet:
3550  av_free_packet(&pkt);
3551 
3552  return 0;
3553 }
3554 
3555 /**
3556  * Perform a step of transcoding for the specified filter graph.
3557  *
3558  * @param[in] graph filter graph to consider
3559  * @param[out] best_ist input stream where a frame would allow to continue
3560  * @return 0 for success, <0 for error
3561  */
3562 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
3563 {
3564  int i, ret;
3565  int nb_requests, nb_requests_max = 0;
3566  InputFilter *ifilter;
3567  InputStream *ist;
3568 
3569  *best_ist = NULL;
3570  ret = avfilter_graph_request_oldest(graph->graph);
3571  if (ret >= 0)
3572  return reap_filters();
3573 
3574  if (ret == AVERROR_EOF) {
3575  ret = reap_filters();
3576  for (i = 0; i < graph->nb_outputs; i++)
3577  close_output_stream(graph->outputs[i]->ost);
3578  return ret;
3579  }
3580  if (ret != AVERROR(EAGAIN))
3581  return ret;
3582 
3583  for (i = 0; i < graph->nb_inputs; i++) {
3584  ifilter = graph->inputs[i];
3585  ist = ifilter->ist;
3586  if (input_files[ist->file_index]->eagain ||
3587  input_files[ist->file_index]->eof_reached)
3588  continue;
3589  nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
3590  if (nb_requests > nb_requests_max) {
3591  nb_requests_max = nb_requests;
3592  *best_ist = ist;
3593  }
3594  }
3595 
3596  if (!*best_ist)
3597  for (i = 0; i < graph->nb_outputs; i++)
3598  graph->outputs[i]->ost->unavailable = 1;
3599 
3600  return 0;
3601 }
3602 
3603 /**
3604  * Run a single step of transcoding.
3605  *
3606  * @return 0 for success, <0 for error
3607  */
3608 static int transcode_step(void)
3609 {
3610  OutputStream *ost;
3611  InputStream *ist;
3612  int ret;
3613 
3614  ost = choose_output();
3615  if (!ost) {
3616  if (got_eagain()) {
3617  reset_eagain();
3618  av_usleep(10000);
3619  return 0;
3620  }
3621  av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
3622  return AVERROR_EOF;
3623  }
3624 
3625  if (ost->filter) {
3626  if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
3627  return ret;
3628  if (!ist)
3629  return 0;
3630  } else {
3631  av_assert0(ost->source_index >= 0);
3632  ist = input_streams[ost->source_index];
3633  }
3634 
3635  ret = process_input(ist->file_index);
3636  if (ret == AVERROR(EAGAIN)) {
3637  if (input_files[ist->file_index]->eagain)
3638  ost->unavailable = 1;
3639  return 0;
3640  }
3641  if (ret < 0)
3642  return ret == AVERROR_EOF ? 0 : ret;
3643 
3644  return reap_filters();
3645 }
3646 
3647 /*
3648  * The following code is the main loop of the file converter
3649  */
3650 static int transcode(void)
3651 {
3652  int ret, i;
3653  AVFormatContext *os;
3654  OutputStream *ost;
3655  InputStream *ist;
3656  int64_t timer_start;
3657 
3658  ret = transcode_init();
3659  if (ret < 0)
3660  goto fail;
3661 
3662  if (stdin_interaction) {
3663  av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
3664  }
3665 
3666  timer_start = av_gettime_relative();
3667 
3668 #if HAVE_PTHREADS
3669  if ((ret = init_input_threads()) < 0)
3670  goto fail;
3671 #endif
3672 
3673  while (!received_sigterm) {
3674  int64_t cur_time= av_gettime_relative();
3675 
3676  /* if 'q' pressed, exits */
3677  if (stdin_interaction)
3678  if (check_keyboard_interaction(cur_time) < 0)
3679  break;
3680 
3681  /* check if there's any stream where output is still needed */
3682  if (!need_output()) {
3683  av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3684  break;
3685  }
3686 
3687  ret = transcode_step();
3688  if (ret < 0) {
3689  if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
3690  continue;
3691 
3692  av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
3693  break;
3694  }
3695 
3696  /* dump report by using the output first video and audio streams */
3697  print_report(0, timer_start, cur_time);
3698  }
3699 #if HAVE_PTHREADS
3701 #endif
3702 
3703  /* at the end of stream, we must flush the decoder buffers */
3704  for (i = 0; i < nb_input_streams; i++) {
3705  ist = input_streams[i];
3706  if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
3707  process_input_packet(ist, NULL);
3708  }
3709  }
3710  flush_encoders();
3711 
3712  term_exit();
3713 
3714  /* write the trailer if needed and close file */
3715  for (i = 0; i < nb_output_files; i++) {
3716  os = output_files[i]->ctx;
3717  av_write_trailer(os);
3718  }
3719 
3720  /* dump report by using the first video and audio streams */
3721  print_report(1, timer_start, av_gettime_relative());
3722 
3723  /* close each encoder */
3724  for (i = 0; i < nb_output_streams; i++) {
3725  ost = output_streams[i];
3726  if (ost->encoding_needed) {
3727  av_freep(&ost->enc_ctx->stats_in);
3728  }
3729  }
3730 
3731  /* close each decoder */
3732  for (i = 0; i < nb_input_streams; i++) {
3733  ist = input_streams[i];
3734  if (ist->decoding_needed) {
3735  avcodec_close(ist->dec_ctx);
3736  if (ist->hwaccel_uninit)
3737  ist->hwaccel_uninit(ist->dec_ctx);
3738  }
3739  }
3740 
3741  /* finished ! */
3742  ret = 0;
3743 
3744  fail:
3745 #if HAVE_PTHREADS
3747 #endif
3748 
3749  if (output_streams) {
3750  for (i = 0; i < nb_output_streams; i++) {
3751  ost = output_streams[i];
3752  if (ost) {
3753  if (ost->logfile) {
3754  fclose(ost->logfile);
3755  ost->logfile = NULL;
3756  }
3757  av_freep(&ost->forced_kf_pts);
3758  av_freep(&ost->apad);
3759  av_dict_free(&ost->encoder_opts);
3760  av_dict_free(&ost->swr_opts);
3761  av_dict_free(&ost->resample_opts);
3762  }
3763  }
3764  }
3765  return ret;
3766 }
3767 
3768 
3769 static int64_t getutime(void)
3770 {
3771 #if HAVE_GETRUSAGE
3772  struct rusage rusage;
3773 
3774  getrusage(RUSAGE_SELF, &rusage);
3775  return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3776 #elif HAVE_GETPROCESSTIMES
3777  HANDLE proc;
3778  FILETIME c, e, k, u;
3779  proc = GetCurrentProcess();
3780  GetProcessTimes(proc, &c, &e, &k, &u);
3781  return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3782 #else
3783  return av_gettime();
3784 #endif
3785 }
3786 
3787 static int64_t getmaxrss(void)
3788 {
3789 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3790  struct rusage rusage;
3791  getrusage(RUSAGE_SELF, &rusage);
3792  return (int64_t)rusage.ru_maxrss * 1024;
3793 #elif HAVE_GETPROCESSMEMORYINFO
3794  HANDLE proc;
3795  PROCESS_MEMORY_COUNTERS memcounters;
3796  proc = GetCurrentProcess();
3797  memcounters.cb = sizeof(memcounters);
3798  GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3799  return memcounters.PeakPagefileUsage;
3800 #else
3801  return 0;
3802 #endif
3803 }
3804 
3805 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
3806 {
3807 }
3808 
3809 int main(int argc, char **argv)
3810 {
3811  int ret;
3812  int64_t ti;
3813 
3815 
3816  setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
3817 
3819  parse_loglevel(argc, argv, options);
3820 
3821  if(argc>1 && !strcmp(argv[1], "-d")){
3822  run_as_daemon=1;
3824  argc--;
3825  argv++;
3826  }
3827 
3829 #if CONFIG_AVDEVICE
3831 #endif
3833  av_register_all();
3835 
3836  show_banner(argc, argv, options);
3837 
3838  term_init();
3839 
3840  /* parse options and open all input/output files */
3841  ret = ffmpeg_parse_options(argc, argv);
3842  if (ret < 0)
3843  exit_program(1);
3844 
3845  if (nb_output_files <= 0 && nb_input_files == 0) {
3846  show_usage();
3847  av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3848  exit_program(1);
3849  }
3850 
3851  /* file converter / grab */
3852  if (nb_output_files <= 0) {
3853  av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
3854  exit_program(1);
3855  }
3856 
3857 // if (nb_input_files == 0) {
3858 // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
3859 // exit_program(1);
3860 // }
3861 
3862  current_time = ti = getutime();
3863  if (transcode() < 0)
3864  exit_program(1);
3865  ti = getutime() - ti;
3866  if (do_benchmark) {
3867  printf("bench: utime=%0.3fs\n", ti / 1000000.0);
3868  }
3869  av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n",
3872  exit_program(69);
3873 
3875  return main_return_code;
3876 }