Pass RC parameters on stream copy to the muxer.
[libav.git] / ffmpeg.c
1 /*
2 * FFmpeg main
3 * Copyright (c) 2000-2003 Fabrice Bellard
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 /* needed for usleep() */
23 #define _XOPEN_SOURCE 600
24
25 #include "config.h"
26 #include <ctype.h>
27 #include <string.h>
28 #include <math.h>
29 #include <stdlib.h>
30 #include <errno.h>
31 #include <signal.h>
32 #include <limits.h>
33 #include <unistd.h>
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavcodec/opt.h"
38 #include "libavcodec/audioconvert.h"
39 #include "libavcore/parseutils.h"
40 #include "libavutil/colorspace.h"
41 #include "libavutil/fifo.h"
42 #include "libavutil/pixdesc.h"
43 #include "libavutil/avstring.h"
44 #include "libavutil/libm.h"
45 #include "libavformat/os_support.h"
46
47 #if CONFIG_AVFILTER
48 # include "libavfilter/avfilter.h"
49 # include "libavfilter/avfiltergraph.h"
50 # include "libavfilter/graphparser.h"
51 # include "libavfilter/vsrc_buffer.h"
52 #endif
53
54 #if HAVE_SYS_RESOURCE_H
55 #include <sys/types.h>
56 #include <sys/time.h>
57 #include <sys/resource.h>
58 #elif HAVE_GETPROCESSTIMES
59 #include <windows.h>
60 #endif
61 #if HAVE_GETPROCESSMEMORYINFO
62 #include <windows.h>
63 #include <psapi.h>
64 #endif
65
66 #if HAVE_SYS_SELECT_H
67 #include <sys/select.h>
68 #endif
69
70 #if HAVE_TERMIOS_H
71 #include <fcntl.h>
72 #include <sys/ioctl.h>
73 #include <sys/time.h>
74 #include <termios.h>
75 #elif HAVE_CONIO_H
76 #include <conio.h>
77 #endif
78 #include <time.h>
79
80 #include "cmdutils.h"
81
82 #include "libavutil/avassert.h"
83
84 const char program_name[] = "FFmpeg";
85 const int program_birth_year = 2000;
86
87 /* select an input stream for an output stream */
88 typedef struct AVStreamMap {
89 int file_index;
90 int stream_index;
91 int sync_file_index;
92 int sync_stream_index;
93 } AVStreamMap;
94
95 /**
96 * select an input file for an output file
97 */
98 typedef struct AVMetaDataMap {
99 int out_file;
100 int in_file;
101 } AVMetaDataMap;
102
103 static const OptionDef options[];
104
105 #define MAX_FILES 100
106 #if !FF_API_MAX_STREAMS
107 #define MAX_STREAMS 1024 /* arbitrary sanity check value */
108 #endif
109
110 static const char *last_asked_format = NULL;
111 static AVFormatContext *input_files[MAX_FILES];
112 static int64_t input_files_ts_offset[MAX_FILES];
113 static double *input_files_ts_scale[MAX_FILES] = {NULL};
114 static AVCodec **input_codecs = NULL;
115 static int nb_input_files = 0;
116 static int nb_input_codecs = 0;
117 static int nb_input_files_ts_scale[MAX_FILES] = {0};
118
119 static AVFormatContext *output_files[MAX_FILES];
120 static AVCodec **output_codecs = NULL;
121 static int nb_output_files = 0;
122 static int nb_output_codecs = 0;
123
124 static AVStreamMap *stream_maps = NULL;
125 static int nb_stream_maps;
126
127 static AVMetaDataMap meta_data_maps[MAX_FILES];
128 static int nb_meta_data_maps;
129
130 /* indexed by output file stream index */
131 static int *streamid_map = NULL;
132 static int nb_streamid_map = 0;
133
134 static int frame_width = 0;
135 static int frame_height = 0;
136 static float frame_aspect_ratio = 0;
137 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
138 static enum SampleFormat audio_sample_fmt = SAMPLE_FMT_NONE;
139 static int frame_topBand = 0;
140 static int frame_bottomBand = 0;
141 static int frame_leftBand = 0;
142 static int frame_rightBand = 0;
143 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
144 static AVRational frame_rate;
145 static float video_qscale = 0;
146 static uint16_t *intra_matrix = NULL;
147 static uint16_t *inter_matrix = NULL;
148 static const char *video_rc_override_string=NULL;
149 static int video_disable = 0;
150 static int video_discard = 0;
151 static char *video_codec_name = NULL;
152 static unsigned int video_codec_tag = 0;
153 static char *video_language = NULL;
154 static int same_quality = 0;
155 static int do_deinterlace = 0;
156 static int top_field_first = -1;
157 static int me_threshold = 0;
158 static int intra_dc_precision = 8;
159 static int loop_input = 0;
160 static int loop_output = AVFMT_NOOUTPUTLOOP;
161 static int qp_hist = 0;
162 #if CONFIG_AVFILTER
163 static char *vfilters = NULL;
164 AVFilterGraph *graph = NULL;
165 #endif
166
167 static int intra_only = 0;
168 static int audio_sample_rate = 44100;
169 static int64_t channel_layout = 0;
170 #define QSCALE_NONE -99999
171 static float audio_qscale = QSCALE_NONE;
172 static int audio_disable = 0;
173 static int audio_channels = 1;
174 static char *audio_codec_name = NULL;
175 static unsigned int audio_codec_tag = 0;
176 static char *audio_language = NULL;
177
178 static int subtitle_disable = 0;
179 static char *subtitle_codec_name = NULL;
180 static char *subtitle_language = NULL;
181 static unsigned int subtitle_codec_tag = 0;
182
183 static float mux_preload= 0.5;
184 static float mux_max_delay= 0.7;
185
186 static int64_t recording_time = INT64_MAX;
187 static int64_t start_time = 0;
188 static int64_t recording_timestamp = 0;
189 static int64_t input_ts_offset = 0;
190 static int file_overwrite = 0;
191 static int metadata_count;
192 static AVMetadataTag *metadata;
193 static int do_benchmark = 0;
194 static int do_hex_dump = 0;
195 static int do_pkt_dump = 0;
196 static int do_psnr = 0;
197 static int do_pass = 0;
198 static char *pass_logfilename_prefix = NULL;
199 static int audio_stream_copy = 0;
200 static int video_stream_copy = 0;
201 static int subtitle_stream_copy = 0;
202 static int video_sync_method= -1;
203 static int audio_sync_method= 0;
204 static float audio_drift_threshold= 0.1;
205 static int copy_ts= 0;
206 static int opt_shortest = 0;
207 static int video_global_header = 0;
208 static char *vstats_filename;
209 static FILE *vstats_file;
210 static int opt_programid = 0;
211 static int copy_initial_nonkeyframes = 0;
212
213 static int rate_emu = 0;
214
215 static int video_channel = 0;
216 static char *video_standard;
217
218 static int audio_volume = 256;
219
220 static int exit_on_error = 0;
221 static int using_stdin = 0;
222 static int verbose = 1;
223 static int thread_count= 1;
224 static int q_pressed = 0;
225 static int64_t video_size = 0;
226 static int64_t audio_size = 0;
227 static int64_t extra_size = 0;
228 static int nb_frames_dup = 0;
229 static int nb_frames_drop = 0;
230 static int input_sync;
231 static uint64_t limit_filesize = 0;
232 static int force_fps = 0;
233
234 static int pgmyuv_compatibility_hack=0;
235 static float dts_delta_threshold = 10;
236
237 static unsigned int sws_flags = SWS_BICUBIC;
238
239 static int64_t timer_start;
240
241 static uint8_t *audio_buf;
242 static uint8_t *audio_out;
243 unsigned int allocated_audio_out_size, allocated_audio_buf_size;
244
245 static short *samples;
246
247 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
248 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
249 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
250 static AVBitStreamFilterContext **bitstream_filters[MAX_FILES] = {NULL};
251 static int nb_bitstream_filters[MAX_FILES] = {0};
252
253 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
254
255 struct AVInputStream;
256
257 typedef struct AVOutputStream {
258 int file_index; /* file index */
259 int index; /* stream index in the output file */
260 int source_index; /* AVInputStream index */
261 AVStream *st; /* stream in the output file */
262 int encoding_needed; /* true if encoding needed for this stream */
263 int frame_number;
264 /* input pts and corresponding output pts
265 for A/V sync */
266 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
267 struct AVInputStream *sync_ist; /* input stream to sync against */
268 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
269 /* video only */
270 int video_resample;
271 AVFrame pict_tmp; /* temporary image for resampling */
272 struct SwsContext *img_resample_ctx; /* for image resampling */
273 int resample_height;
274 int resample_width;
275 int resample_pix_fmt;
276
277 /* full frame size of first frame */
278 int original_height;
279 int original_width;
280
281 /* cropping area sizes */
282 int video_crop;
283 int topBand;
284 int bottomBand;
285 int leftBand;
286 int rightBand;
287
288 /* cropping area of first frame */
289 int original_topBand;
290 int original_bottomBand;
291 int original_leftBand;
292 int original_rightBand;
293
294 /* audio only */
295 int audio_resample;
296 ReSampleContext *resample; /* for audio resampling */
297 int reformat_pair;
298 AVAudioConvert *reformat_ctx;
299 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
300 FILE *logfile;
301 } AVOutputStream;
302
303 typedef struct AVInputStream {
304 int file_index;
305 int index;
306 AVStream *st;
307 int discard; /* true if stream data should be discarded */
308 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
309 int64_t sample_index; /* current sample */
310
311 int64_t start; /* time when read started */
312 int64_t next_pts; /* synthetic pts for cases where pkt.pts
313 is not defined */
314 int64_t pts; /* current pts */
315 int is_start; /* is 1 at the start and after a discontinuity */
316 int showed_multi_packet_warning;
317 int is_past_recording_time;
318 #if CONFIG_AVFILTER
319 AVFilterContext *output_video_filter;
320 AVFilterContext *input_video_filter;
321 AVFrame *filter_frame;
322 int has_filter_frame;
323 AVFilterBufferRef *picref;
324 #endif
325 } AVInputStream;
326
327 typedef struct AVInputFile {
328 int eof_reached; /* true if eof reached */
329 int ist_index; /* index of first stream in ist_table */
330 int buffer_size; /* current total buffer size */
331 int nb_streams; /* nb streams we are aware of */
332 } AVInputFile;
333
334 #if HAVE_TERMIOS_H
335
336 /* init terminal so that we can grab keys */
337 static struct termios oldtty;
338 #endif
339
340 #if CONFIG_AVFILTER
341 typedef struct {
342 int pix_fmt;
343 } FilterOutPriv;
344
345
346 static int output_init(AVFilterContext *ctx, const char *args, void *opaque)
347 {
348 FilterOutPriv *priv = ctx->priv;
349
350 if(!opaque) return -1;
351
352 priv->pix_fmt = *((int *)opaque);
353
354 return 0;
355 }
356
357 static void output_end_frame(AVFilterLink *link)
358 {
359 }
360
361 static int output_query_formats(AVFilterContext *ctx)
362 {
363 FilterOutPriv *priv = ctx->priv;
364 enum PixelFormat pix_fmts[] = { priv->pix_fmt, PIX_FMT_NONE };
365
366 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
367 return 0;
368 }
369
370 static int get_filtered_video_pic(AVFilterContext *ctx,
371 AVFilterBufferRef **picref, AVFrame *pic2,
372 uint64_t *pts)
373 {
374 AVFilterBufferRef *pic;
375
376 if(avfilter_request_frame(ctx->inputs[0]))
377 return -1;
378 if(!(pic = ctx->inputs[0]->cur_buf))
379 return -1;
380 *picref = pic;
381 ctx->inputs[0]->cur_buf = NULL;
382
383 *pts = pic->pts;
384
385 memcpy(pic2->data, pic->data, sizeof(pic->data));
386 memcpy(pic2->linesize, pic->linesize, sizeof(pic->linesize));
387 pic2->interlaced_frame = pic->video->interlaced;
388 pic2->top_field_first = pic->video->top_field_first;
389
390 return 1;
391 }
392
393 static AVFilter output_filter =
394 {
395 .name = "ffmpeg_output",
396
397 .priv_size = sizeof(FilterOutPriv),
398 .init = output_init,
399
400 .query_formats = output_query_formats,
401
402 .inputs = (AVFilterPad[]) {{ .name = "default",
403 .type = AVMEDIA_TYPE_VIDEO,
404 .end_frame = output_end_frame,
405 .min_perms = AV_PERM_READ, },
406 { .name = NULL }},
407 .outputs = (AVFilterPad[]) {{ .name = NULL }},
408 };
409
410 static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
411 {
412 AVFilterContext *last_filter, *filter;
413 /** filter graph containing all filters including input & output */
414 AVCodecContext *codec = ost->st->codec;
415 AVCodecContext *icodec = ist->st->codec;
416 char args[255];
417 int ret;
418
419 graph = av_mallocz(sizeof(AVFilterGraph));
420
421 if ((ret = avfilter_open(&ist->input_video_filter, avfilter_get_by_name("buffer"), "src")) < 0)
422 return ret;
423 if ((ret = avfilter_open(&ist->output_video_filter, &output_filter, "out")) < 0)
424 return ret;
425
426 snprintf(args, 255, "%d:%d:%d", ist->st->codec->width,
427 ist->st->codec->height, ist->st->codec->pix_fmt);
428 if ((ret = avfilter_init_filter(ist->input_video_filter, args, NULL)) < 0)
429 return ret;
430 if ((ret = avfilter_init_filter(ist->output_video_filter, NULL, &codec->pix_fmt)) < 0)
431 return ret;
432
433 /* add input and output filters to the overall graph */
434 avfilter_graph_add_filter(graph, ist->input_video_filter);
435 avfilter_graph_add_filter(graph, ist->output_video_filter);
436
437 last_filter = ist->input_video_filter;
438
439 if (ost->video_crop) {
440 snprintf(args, 255, "%d:%d:%d:%d",
441 codec->width, codec->height,
442 ost->leftBand, ost->topBand);
443 if ((ret = avfilter_open(&filter, avfilter_get_by_name("crop"), NULL)) < 0)
444 return ret;
445 if ((ret = avfilter_init_filter(filter, args, NULL)) < 0)
446 return ret;
447 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
448 return ret;
449 last_filter = filter;
450 avfilter_graph_add_filter(graph, last_filter);
451 }
452
453 if((codec->width !=
454 icodec->width - (frame_leftBand + frame_rightBand)) ||
455 (codec->height != icodec->height - (frame_topBand + frame_bottomBand))) {
456 snprintf(args, 255, "%d:%d:flags=0x%X",
457 codec->width,
458 codec->height,
459 (int)av_get_int(sws_opts, "sws_flags", NULL));
460 if ((ret = avfilter_open(&filter, avfilter_get_by_name("scale"), NULL)) < 0)
461 return ret;
462 if ((ret = avfilter_init_filter(filter, args, NULL)) < 0)
463 return ret;
464 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
465 return ret;
466 last_filter = filter;
467 avfilter_graph_add_filter(graph, last_filter);
468 }
469
470 snprintf(args, sizeof(args), "flags=0x%X", (int)av_get_int(sws_opts, "sws_flags", NULL));
471 graph->scale_sws_opts = av_strdup(args);
472
473 if (vfilters) {
474 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
475 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
476
477 outputs->name = av_strdup("in");
478 outputs->filter = last_filter;
479 outputs->pad_idx = 0;
480 outputs->next = NULL;
481
482 inputs->name = av_strdup("out");
483 inputs->filter = ist->output_video_filter;
484 inputs->pad_idx = 0;
485 inputs->next = NULL;
486
487 if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
488 return ret;
489 av_freep(&vfilters);
490 } else {
491 if ((ret = avfilter_link(last_filter, 0, ist->output_video_filter, 0)) < 0)
492 return ret;
493 }
494
495 /* configure all the filter links */
496 if ((ret = avfilter_graph_check_validity(graph, NULL)) < 0)
497 return ret;
498 if ((ret = avfilter_graph_config_formats(graph, NULL)) < 0)
499 return ret;
500 if ((ret = avfilter_graph_config_links(graph, NULL)) < 0)
501 return ret;
502
503 codec->width = ist->output_video_filter->inputs[0]->w;
504 codec->height = ist->output_video_filter->inputs[0]->h;
505
506 return 0;
507 }
508 #endif /* CONFIG_AVFILTER */
509
510 static void term_exit(void)
511 {
512 av_log(NULL, AV_LOG_QUIET, "");
513 #if HAVE_TERMIOS_H
514 tcsetattr (0, TCSANOW, &oldtty);
515 #endif
516 }
517
518 static volatile int received_sigterm = 0;
519
520 static void
521 sigterm_handler(int sig)
522 {
523 received_sigterm = sig;
524 term_exit();
525 }
526
527 static void term_init(void)
528 {
529 #if HAVE_TERMIOS_H
530 struct termios tty;
531
532 tcgetattr (0, &tty);
533 oldtty = tty;
534 atexit(term_exit);
535
536 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
537 |INLCR|IGNCR|ICRNL|IXON);
538 tty.c_oflag |= OPOST;
539 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
540 tty.c_cflag &= ~(CSIZE|PARENB);
541 tty.c_cflag |= CS8;
542 tty.c_cc[VMIN] = 1;
543 tty.c_cc[VTIME] = 0;
544
545 tcsetattr (0, TCSANOW, &tty);
546 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
547 #endif
548
549 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
550 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
551 #ifdef SIGXCPU
552 signal(SIGXCPU, sigterm_handler);
553 #endif
554 }
555
556 /* read a key without blocking */
557 static int read_key(void)
558 {
559 #if HAVE_TERMIOS_H
560 int n = 1;
561 unsigned char ch;
562 struct timeval tv;
563 fd_set rfds;
564
565 FD_ZERO(&rfds);
566 FD_SET(0, &rfds);
567 tv.tv_sec = 0;
568 tv.tv_usec = 0;
569 n = select(1, &rfds, NULL, NULL, &tv);
570 if (n > 0) {
571 n = read(0, &ch, 1);
572 if (n == 1)
573 return ch;
574
575 return n;
576 }
577 #elif HAVE_CONIO_H
578 if(kbhit())
579 return(getch());
580 #endif
581 return -1;
582 }
583
584 static int decode_interrupt_cb(void)
585 {
586 return q_pressed || (q_pressed = read_key() == 'q');
587 }
588
589 static int ffmpeg_exit(int ret)
590 {
591 int i;
592
593 /* close files */
594 for(i=0;i<nb_output_files;i++) {
595 /* maybe av_close_output_file ??? */
596 AVFormatContext *s = output_files[i];
597 int j;
598 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
599 url_fclose(s->pb);
600 for(j=0;j<s->nb_streams;j++) {
601 av_metadata_free(&s->streams[j]->metadata);
602 av_free(s->streams[j]->codec);
603 av_free(s->streams[j]);
604 }
605 for(j=0;j<s->nb_programs;j++) {
606 av_metadata_free(&s->programs[j]->metadata);
607 }
608 for(j=0;j<s->nb_chapters;j++) {
609 av_metadata_free(&s->chapters[j]->metadata);
610 }
611 av_metadata_free(&s->metadata);
612 av_free(s);
613 av_free(bitstream_filters[i]);
614 }
615 for(i=0;i<nb_input_files;i++) {
616 av_close_input_file(input_files[i]);
617 av_free(input_files_ts_scale[i]);
618 }
619
620 av_free(intra_matrix);
621 av_free(inter_matrix);
622
623 if (vstats_file)
624 fclose(vstats_file);
625 av_free(vstats_filename);
626
627 av_free(opt_names);
628 av_free(streamid_map);
629 av_free(input_codecs);
630 av_free(output_codecs);
631 av_free(stream_maps);
632
633 av_free(video_codec_name);
634 av_free(audio_codec_name);
635 av_free(subtitle_codec_name);
636
637 av_free(video_standard);
638
639 uninit_opts();
640 av_free(audio_buf);
641 av_free(audio_out);
642 allocated_audio_buf_size= allocated_audio_out_size= 0;
643 av_free(samples);
644
645 #if CONFIG_AVFILTER
646 avfilter_uninit();
647 #endif
648
649 if (received_sigterm) {
650 fprintf(stderr,
651 "Received signal %d: terminating.\n",
652 (int) received_sigterm);
653 exit (255);
654 }
655
656 exit(ret); /* not all OS-es handle main() return value */
657 return ret;
658 }
659
660 /* similar to ff_dynarray_add() and av_fast_realloc() */
661 static void *grow_array(void *array, int elem_size, int *size, int new_size)
662 {
663 if (new_size >= INT_MAX / elem_size) {
664 fprintf(stderr, "Array too big.\n");
665 ffmpeg_exit(1);
666 }
667 if (*size < new_size) {
668 uint8_t *tmp = av_realloc(array, new_size*elem_size);
669 if (!tmp) {
670 fprintf(stderr, "Could not alloc buffer.\n");
671 ffmpeg_exit(1);
672 }
673 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
674 *size = new_size;
675 return tmp;
676 }
677 return array;
678 }
679
680 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
681 {
682 if(codec && codec->sample_fmts){
683 const enum SampleFormat *p= codec->sample_fmts;
684 for(; *p!=-1; p++){
685 if(*p == st->codec->sample_fmt)
686 break;
687 }
688 if(*p == -1)
689 st->codec->sample_fmt = codec->sample_fmts[0];
690 }
691 }
692
693 static void choose_sample_rate(AVStream *st, AVCodec *codec)
694 {
695 if(codec && codec->supported_samplerates){
696 const int *p= codec->supported_samplerates;
697 int best=0;
698 int best_dist=INT_MAX;
699 for(; *p; p++){
700 int dist= abs(st->codec->sample_rate - *p);
701 if(dist < best_dist){
702 best_dist= dist;
703 best= *p;
704 }
705 }
706 if(best_dist){
707 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
708 }
709 st->codec->sample_rate= best;
710 }
711 }
712
713 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
714 {
715 if(codec && codec->pix_fmts){
716 const enum PixelFormat *p= codec->pix_fmts;
717 for(; *p!=-1; p++){
718 if(*p == st->codec->pix_fmt)
719 break;
720 }
721 if(*p == -1
722 && !( st->codec->codec_id==CODEC_ID_MJPEG
723 && st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL
724 && ( st->codec->pix_fmt == PIX_FMT_YUV420P
725 || st->codec->pix_fmt == PIX_FMT_YUV422P)))
726 st->codec->pix_fmt = codec->pix_fmts[0];
727 }
728 }
729
730 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
731 {
732 int i, err;
733 AVFormatContext *ic;
734 int nopts = 0;
735
736 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
737 if (err < 0)
738 return err;
739 /* copy stream format */
740 s->nb_streams = ic->nb_streams;
741 for(i=0;i<ic->nb_streams;i++) {
742 AVStream *st;
743 AVCodec *codec;
744
745 // FIXME: a more elegant solution is needed
746 st = av_mallocz(sizeof(AVStream));
747 memcpy(st, ic->streams[i], sizeof(AVStream));
748 st->codec = avcodec_alloc_context();
749 if (!st->codec) {
750 print_error(filename, AVERROR(ENOMEM));
751 ffmpeg_exit(1);
752 }
753 avcodec_copy_context(st->codec, ic->streams[i]->codec);
754 s->streams[i] = st;
755
756 codec = avcodec_find_encoder(st->codec->codec_id);
757 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
758 if (audio_stream_copy) {
759 st->stream_copy = 1;
760 } else
761 choose_sample_fmt(st, codec);
762 } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
763 if (video_stream_copy) {
764 st->stream_copy = 1;
765 } else
766 choose_pixel_fmt(st, codec);
767 }
768
769 if(!st->codec->thread_count)
770 st->codec->thread_count = 1;
771 if(st->codec->thread_count>1)
772 avcodec_thread_init(st->codec, st->codec->thread_count);
773
774 if(st->codec->flags & CODEC_FLAG_BITEXACT)
775 nopts = 1;
776 }
777
778 if (!nopts)
779 s->timestamp = av_gettime();
780
781 av_close_input_file(ic);
782 return 0;
783 }
784
785 static double
786 get_sync_ipts(const AVOutputStream *ost)
787 {
788 const AVInputStream *ist = ost->sync_ist;
789 return (double)(ist->pts - start_time)/AV_TIME_BASE;
790 }
791
792 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
793 int ret;
794
795 while(bsfc){
796 AVPacket new_pkt= *pkt;
797 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
798 &new_pkt.data, &new_pkt.size,
799 pkt->data, pkt->size,
800 pkt->flags & AV_PKT_FLAG_KEY);
801 if(a>0){
802 av_free_packet(pkt);
803 new_pkt.destruct= av_destruct_packet;
804 } else if(a<0){
805 fprintf(stderr, "%s failed for stream %d, codec %s",
806 bsfc->filter->name, pkt->stream_index,
807 avctx->codec ? avctx->codec->name : "copy");
808 print_error("", a);
809 if (exit_on_error)
810 ffmpeg_exit(1);
811 }
812 *pkt= new_pkt;
813
814 bsfc= bsfc->next;
815 }
816
817 ret= av_interleaved_write_frame(s, pkt);
818 if(ret < 0){
819 print_error("av_interleaved_write_frame()", ret);
820 ffmpeg_exit(1);
821 }
822 }
823
824 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
825
826 static void do_audio_out(AVFormatContext *s,
827 AVOutputStream *ost,
828 AVInputStream *ist,
829 unsigned char *buf, int size)
830 {
831 uint8_t *buftmp;
832 int64_t audio_out_size, audio_buf_size;
833 int64_t allocated_for_size= size;
834
835 int size_out, frame_bytes, ret;
836 AVCodecContext *enc= ost->st->codec;
837 AVCodecContext *dec= ist->st->codec;
838 int osize= av_get_bits_per_sample_format(enc->sample_fmt)/8;
839 int isize= av_get_bits_per_sample_format(dec->sample_fmt)/8;
840 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
841
842 need_realloc:
843 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
844 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
845 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
846 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
847 audio_buf_size*= osize*enc->channels;
848
849 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
850 if(coded_bps > 8*osize)
851 audio_out_size= audio_out_size * coded_bps / (8*osize);
852 audio_out_size += FF_MIN_BUFFER_SIZE;
853
854 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
855 fprintf(stderr, "Buffer sizes too large\n");
856 ffmpeg_exit(1);
857 }
858
859 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
860 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
861 if (!audio_buf || !audio_out){
862 fprintf(stderr, "Out of memory in do_audio_out\n");
863 ffmpeg_exit(1);
864 }
865
866 if (enc->channels != dec->channels)
867 ost->audio_resample = 1;
868
869 if (ost->audio_resample && !ost->resample) {
870 if (dec->sample_fmt != SAMPLE_FMT_S16)
871 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
872 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
873 enc->sample_rate, dec->sample_rate,
874 enc->sample_fmt, dec->sample_fmt,
875 16, 10, 0, 0.8);
876 if (!ost->resample) {
877 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
878 dec->channels, dec->sample_rate,
879 enc->channels, enc->sample_rate);
880 ffmpeg_exit(1);
881 }
882 }
883
884 #define MAKE_SFMT_PAIR(a,b) ((a)+SAMPLE_FMT_NB*(b))
885 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
886 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
887 if (ost->reformat_ctx)
888 av_audio_convert_free(ost->reformat_ctx);
889 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
890 dec->sample_fmt, 1, NULL, 0);
891 if (!ost->reformat_ctx) {
892 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
893 avcodec_get_sample_fmt_name(dec->sample_fmt),
894 avcodec_get_sample_fmt_name(enc->sample_fmt));
895 ffmpeg_exit(1);
896 }
897 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
898 }
899
900 if(audio_sync_method){
901 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
902 - av_fifo_size(ost->fifo)/(enc->channels * 2);
903 double idelta= delta*dec->sample_rate / enc->sample_rate;
904 int byte_delta= ((int)idelta)*2*dec->channels;
905
906 //FIXME resample delay
907 if(fabs(delta) > 50){
908 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
909 if(byte_delta < 0){
910 byte_delta= FFMAX(byte_delta, -size);
911 size += byte_delta;
912 buf -= byte_delta;
913 if(verbose > 2)
914 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
915 if(!size)
916 return;
917 ist->is_start=0;
918 }else{
919 static uint8_t *input_tmp= NULL;
920 input_tmp= av_realloc(input_tmp, byte_delta + size);
921
922 if(byte_delta > allocated_for_size - size){
923 allocated_for_size= byte_delta + (int64_t)size;
924 goto need_realloc;
925 }
926 ist->is_start=0;
927
928 memset(input_tmp, 0, byte_delta);
929 memcpy(input_tmp + byte_delta, buf, size);
930 buf= input_tmp;
931 size += byte_delta;
932 if(verbose > 2)
933 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
934 }
935 }else if(audio_sync_method>1){
936 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
937 av_assert0(ost->audio_resample);
938 if(verbose > 2)
939 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
940 // fprintf(stderr, "drift:%f len:%d opts:%"PRId64" ipts:%"PRId64" fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2));
941 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
942 }
943 }
944 }else
945 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
946 - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
947
948 if (ost->audio_resample) {
949 buftmp = audio_buf;
950 size_out = audio_resample(ost->resample,
951 (short *)buftmp, (short *)buf,
952 size / (dec->channels * isize));
953 size_out = size_out * enc->channels * osize;
954 } else {
955 buftmp = buf;
956 size_out = size;
957 }
958
959 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
960 const void *ibuf[6]= {buftmp};
961 void *obuf[6]= {audio_buf};
962 int istride[6]= {isize};
963 int ostride[6]= {osize};
964 int len= size_out/istride[0];
965 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
966 printf("av_audio_convert() failed\n");
967 if (exit_on_error)
968 ffmpeg_exit(1);
969 return;
970 }
971 buftmp = audio_buf;
972 size_out = len*osize;
973 }
974
975 /* now encode as many frames as possible */
976 if (enc->frame_size > 1) {
977 /* output resampled raw samples */
978 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
979 fprintf(stderr, "av_fifo_realloc2() failed\n");
980 ffmpeg_exit(1);
981 }
982 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
983
984 frame_bytes = enc->frame_size * osize * enc->channels;
985
986 while (av_fifo_size(ost->fifo) >= frame_bytes) {
987 AVPacket pkt;
988 av_init_packet(&pkt);
989
990 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
991
992 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
993
994 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
995 (short *)audio_buf);
996 if (ret < 0) {
997 fprintf(stderr, "Audio encoding failed\n");
998 ffmpeg_exit(1);
999 }
1000 audio_size += ret;
1001 pkt.stream_index= ost->index;
1002 pkt.data= audio_out;
1003 pkt.size= ret;
1004 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1005 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1006 pkt.flags |= AV_PKT_FLAG_KEY;
1007 write_frame(s, &pkt, enc, bitstream_filters[ost->file_index][pkt.stream_index]);
1008
1009 ost->sync_opts += enc->frame_size;
1010 }
1011 } else {
1012 AVPacket pkt;
1013 av_init_packet(&pkt);
1014
1015 ost->sync_opts += size_out / (osize * enc->channels);
1016
1017 /* output a pcm frame */
1018 /* determine the size of the coded buffer */
1019 size_out /= osize;
1020 if (coded_bps)
1021 size_out = size_out*coded_bps/8;
1022
1023 if(size_out > audio_out_size){
1024 fprintf(stderr, "Internal error, buffer size too small\n");
1025 ffmpeg_exit(1);
1026 }
1027
1028 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
1029 ret = avcodec_encode_audio(enc, audio_out, size_out,
1030 (short *)buftmp);
1031 if (ret < 0) {
1032 fprintf(stderr, "Audio encoding failed\n");
1033 ffmpeg_exit(1);
1034 }
1035 audio_size += ret;
1036 pkt.stream_index= ost->index;
1037 pkt.data= audio_out;
1038 pkt.size= ret;
1039 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1040 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1041 pkt.flags |= AV_PKT_FLAG_KEY;
1042 write_frame(s, &pkt, enc, bitstream_filters[ost->file_index][pkt.stream_index]);
1043 }
1044 }
1045
1046 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
1047 {
1048 AVCodecContext *dec;
1049 AVPicture *picture2;
1050 AVPicture picture_tmp;
1051 uint8_t *buf = 0;
1052
1053 dec = ist->st->codec;
1054
1055 /* deinterlace : must be done before any resize */
1056 if (do_deinterlace) {
1057 int size;
1058
1059 /* create temporary picture */
1060 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1061 buf = av_malloc(size);
1062 if (!buf)
1063 return;
1064
1065 picture2 = &picture_tmp;
1066 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1067
1068 if(avpicture_deinterlace(picture2, picture,
1069 dec->pix_fmt, dec->width, dec->height) < 0) {
1070 /* if error, do not deinterlace */
1071 fprintf(stderr, "Deinterlacing failed\n");
1072 av_free(buf);
1073 buf = NULL;
1074 picture2 = picture;
1075 }
1076 } else {
1077 picture2 = picture;
1078 }
1079
1080 if (picture != picture2)
1081 *picture = *picture2;
1082 *bufp = buf;
1083 }
1084
1085 /* we begin to correct av delay at this threshold */
1086 #define AV_DELAY_MAX 0.100
1087
1088 static void do_subtitle_out(AVFormatContext *s,
1089 AVOutputStream *ost,
1090 AVInputStream *ist,
1091 AVSubtitle *sub,
1092 int64_t pts)
1093 {
1094 static uint8_t *subtitle_out = NULL;
1095 int subtitle_out_max_size = 1024 * 1024;
1096 int subtitle_out_size, nb, i;
1097 AVCodecContext *enc;
1098 AVPacket pkt;
1099
1100 if (pts == AV_NOPTS_VALUE) {
1101 fprintf(stderr, "Subtitle packets must have a pts\n");
1102 if (exit_on_error)
1103 ffmpeg_exit(1);
1104 return;
1105 }
1106
1107 enc = ost->st->codec;
1108
1109 if (!subtitle_out) {
1110 subtitle_out = av_malloc(subtitle_out_max_size);
1111 }
1112
1113 /* Note: DVB subtitle need one packet to draw them and one other
1114 packet to clear them */
1115 /* XXX: signal it in the codec context ? */
1116 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1117 nb = 2;
1118 else
1119 nb = 1;
1120
1121 for(i = 0; i < nb; i++) {
1122 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1123 // start_display_time is required to be 0
1124 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1125 sub->end_display_time -= sub->start_display_time;
1126 sub->start_display_time = 0;
1127 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1128 subtitle_out_max_size, sub);
1129 if (subtitle_out_size < 0) {
1130 fprintf(stderr, "Subtitle encoding failed\n");
1131 ffmpeg_exit(1);
1132 }
1133
1134 av_init_packet(&pkt);
1135 pkt.stream_index = ost->index;
1136 pkt.data = subtitle_out;
1137 pkt.size = subtitle_out_size;
1138 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1139 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1140 /* XXX: the pts correction is handled here. Maybe handling
1141 it in the codec would be better */
1142 if (i == 0)
1143 pkt.pts += 90 * sub->start_display_time;
1144 else
1145 pkt.pts += 90 * sub->end_display_time;
1146 }
1147 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1148 }
1149 }
1150
1151 static int bit_buffer_size= 1024*256;
1152 static uint8_t *bit_buffer= NULL;
1153
1154 static void do_video_out(AVFormatContext *s,
1155 AVOutputStream *ost,
1156 AVInputStream *ist,
1157 AVFrame *in_picture,
1158 int *frame_size)
1159 {
1160 int nb_frames, i, ret;
1161 #if !CONFIG_AVFILTER
1162 int64_t topBand, bottomBand, leftBand, rightBand;
1163 #endif
1164 AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
1165 AVFrame picture_crop_temp, picture_pad_temp;
1166 AVCodecContext *enc, *dec;
1167 double sync_ipts;
1168
1169 avcodec_get_frame_defaults(&picture_crop_temp);
1170 avcodec_get_frame_defaults(&picture_pad_temp);
1171
1172 enc = ost->st->codec;
1173 dec = ist->st->codec;
1174
1175 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1176
1177 /* by default, we output a single frame */
1178 nb_frames = 1;
1179
1180 *frame_size = 0;
1181
1182 if(video_sync_method){
1183 double vdelta = sync_ipts - ost->sync_opts;
1184 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1185 if (vdelta < -1.1)
1186 nb_frames = 0;
1187 else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1188 if(vdelta<=-0.6){
1189 nb_frames=0;
1190 }else if(vdelta>0.6)
1191 ost->sync_opts= lrintf(sync_ipts);
1192 }else if (vdelta > 1.1)
1193 nb_frames = lrintf(vdelta);
1194 //fprintf(stderr, "vdelta:%f, ost->sync_opts:%"PRId64", ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, get_sync_ipts(ost), nb_frames);
1195 if (nb_frames == 0){
1196 ++nb_frames_drop;
1197 if (verbose>2)
1198 fprintf(stderr, "*** drop!\n");
1199 }else if (nb_frames > 1) {
1200 nb_frames_dup += nb_frames - 1;
1201 if (verbose>2)
1202 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1203 }
1204 }else
1205 ost->sync_opts= lrintf(sync_ipts);
1206
1207 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1208 if (nb_frames <= 0)
1209 return;
1210
1211 #if CONFIG_AVFILTER
1212 formatted_picture = in_picture;
1213 #else
1214 if (ost->video_crop) {
1215 if (av_picture_crop((AVPicture *)&picture_crop_temp, (AVPicture *)in_picture, dec->pix_fmt, ost->topBand, ost->leftBand) < 0) {
1216 fprintf(stderr, "error cropping picture\n");
1217 if (exit_on_error)
1218 ffmpeg_exit(1);
1219 return;
1220 }
1221 formatted_picture = &picture_crop_temp;
1222 } else {
1223 formatted_picture = in_picture;
1224 }
1225 #endif
1226
1227 final_picture = formatted_picture;
1228 padding_src = formatted_picture;
1229 resampling_dst = &ost->pict_tmp;
1230
1231 if( (ost->resample_height != (ist->st->codec->height - (ost->topBand + ost->bottomBand)))
1232 || (ost->resample_width != (ist->st->codec->width - (ost->leftBand + ost->rightBand)))
1233 || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1234
1235 fprintf(stderr,"Input Stream #%d.%d frame size changed to %dx%d, %s\n", ist->file_index, ist->index, ist->st->codec->width, ist->st->codec->height,avcodec_get_pix_fmt_name(ist->st->codec->pix_fmt));
1236 if(!ost->video_resample)
1237 ffmpeg_exit(1);
1238 }
1239
1240 #if !CONFIG_AVFILTER
1241 if (ost->video_resample) {
1242 padding_src = NULL;
1243 final_picture = &ost->pict_tmp;
1244 if( (ost->resample_height != (ist->st->codec->height - (ost->topBand + ost->bottomBand)))
1245 || (ost->resample_width != (ist->st->codec->width - (ost->leftBand + ost->rightBand)))
1246 || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1247
1248 /* keep bands proportional to the frame size */
1249 topBand = ((int64_t)ist->st->codec->height * ost->original_topBand / ost->original_height) & ~1;
1250 bottomBand = ((int64_t)ist->st->codec->height * ost->original_bottomBand / ost->original_height) & ~1;
1251 leftBand = ((int64_t)ist->st->codec->width * ost->original_leftBand / ost->original_width) & ~1;
1252 rightBand = ((int64_t)ist->st->codec->width * ost->original_rightBand / ost->original_width) & ~1;
1253
1254 /* sanity check to ensure no bad band sizes sneak in */
1255 av_assert0(topBand <= INT_MAX && topBand >= 0);
1256 av_assert0(bottomBand <= INT_MAX && bottomBand >= 0);
1257 av_assert0(leftBand <= INT_MAX && leftBand >= 0);
1258 av_assert0(rightBand <= INT_MAX && rightBand >= 0);
1259
1260 ost->topBand = topBand;
1261 ost->bottomBand = bottomBand;
1262 ost->leftBand = leftBand;
1263 ost->rightBand = rightBand;
1264
1265 ost->resample_height = ist->st->codec->height - (ost->topBand + ost->bottomBand);
1266 ost->resample_width = ist->st->codec->width - (ost->leftBand + ost->rightBand);
1267 ost->resample_pix_fmt= ist->st->codec->pix_fmt;
1268
1269 /* initialize a new scaler context */
1270 sws_freeContext(ost->img_resample_ctx);
1271 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1272 ost->img_resample_ctx = sws_getContext(
1273 ist->st->codec->width - (ost->leftBand + ost->rightBand),
1274 ist->st->codec->height - (ost->topBand + ost->bottomBand),
1275 ist->st->codec->pix_fmt,
1276 ost->st->codec->width,
1277 ost->st->codec->height,
1278 ost->st->codec->pix_fmt,
1279 sws_flags, NULL, NULL, NULL);
1280 if (ost->img_resample_ctx == NULL) {
1281 fprintf(stderr, "Cannot get resampling context\n");
1282 ffmpeg_exit(1);
1283 }
1284 }
1285 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1286 0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1287 }
1288 #endif
1289
1290 /* duplicates frame if needed */
1291 for(i=0;i<nb_frames;i++) {
1292 AVPacket pkt;
1293 av_init_packet(&pkt);
1294 pkt.stream_index= ost->index;
1295
1296 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1297 /* raw pictures are written as AVPicture structure to
1298 avoid any copies. We support temorarily the older
1299 method. */
1300 AVFrame* old_frame = enc->coded_frame;
1301 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1302 pkt.data= (uint8_t *)final_picture;
1303 pkt.size= sizeof(AVPicture);
1304 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1305 pkt.flags |= AV_PKT_FLAG_KEY;
1306
1307 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1308 enc->coded_frame = old_frame;
1309 } else {
1310 AVFrame big_picture;
1311
1312 big_picture= *final_picture;
1313 /* better than nothing: use input picture interlaced
1314 settings */
1315 big_picture.interlaced_frame = in_picture->interlaced_frame;
1316 if(avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1317 if(top_field_first == -1)
1318 big_picture.top_field_first = in_picture->top_field_first;
1319 else
1320 big_picture.top_field_first = top_field_first;
1321 }
1322
1323 /* handles sameq here. This is not correct because it may
1324 not be a global option */
1325 big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
1326 if(!me_threshold)
1327 big_picture.pict_type = 0;
1328 // big_picture.pts = AV_NOPTS_VALUE;
1329 big_picture.pts= ost->sync_opts;
1330 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1331 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1332 ret = avcodec_encode_video(enc,
1333 bit_buffer, bit_buffer_size,
1334 &big_picture);
1335 if (ret < 0) {
1336 fprintf(stderr, "Video encoding failed\n");
1337 ffmpeg_exit(1);
1338 }
1339
1340 if(ret>0){
1341 pkt.data= bit_buffer;
1342 pkt.size= ret;
1343 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1344 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1345 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1346 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1347 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1348
1349 if(enc->coded_frame->key_frame)
1350 pkt.flags |= AV_PKT_FLAG_KEY;
1351 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1352 *frame_size = ret;
1353 video_size += ret;
1354 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1355 // enc->frame_number-1, ret, enc->pict_type);
1356 /* if two pass, output log */
1357 if (ost->logfile && enc->stats_out) {
1358 fprintf(ost->logfile, "%s", enc->stats_out);
1359 }
1360 }
1361 }
1362 ost->sync_opts++;
1363 ost->frame_number++;
1364 }
1365 }
1366
1367 static double psnr(double d){
1368 return -10.0*log(d)/log(10.0);
1369 }
1370
1371 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1372 int frame_size)
1373 {
1374 AVCodecContext *enc;
1375 int frame_number;
1376 double ti1, bitrate, avg_bitrate;
1377
1378 /* this is executed just the first time do_video_stats is called */
1379 if (!vstats_file) {
1380 vstats_file = fopen(vstats_filename, "w");
1381 if (!vstats_file) {
1382 perror("fopen");
1383 ffmpeg_exit(1);
1384 }
1385 }
1386
1387 enc = ost->st->codec;
1388 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1389 frame_number = ost->frame_number;
1390 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1391 if (enc->flags&CODEC_FLAG_PSNR)
1392 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1393
1394 fprintf(vstats_file,"f_size= %6d ", frame_size);
1395 /* compute pts value */
1396 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1397 if (ti1 < 0.01)
1398 ti1 = 0.01;
1399
1400 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1401 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1402 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1403 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1404 fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1405 }
1406 }
1407
1408 static void print_report(AVFormatContext **output_files,
1409 AVOutputStream **ost_table, int nb_ostreams,
1410 int is_last_report)
1411 {
1412 char buf[1024];
1413 AVOutputStream *ost;
1414 AVFormatContext *oc;
1415 int64_t total_size;
1416 AVCodecContext *enc;
1417 int frame_number, vid, i;
1418 double bitrate, ti1, pts;
1419 static int64_t last_time = -1;
1420 static int qp_histogram[52];
1421
1422 if (!is_last_report) {
1423 int64_t cur_time;
1424 /* display the report every 0.5 seconds */
1425 cur_time = av_gettime();
1426 if (last_time == -1) {
1427 last_time = cur_time;
1428 return;
1429 }
1430 if ((cur_time - last_time) < 500000)
1431 return;
1432 last_time = cur_time;
1433 }
1434
1435
1436 oc = output_files[0];
1437
1438 total_size = url_fsize(oc->pb);
1439 if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1440 total_size= url_ftell(oc->pb);
1441
1442 buf[0] = '\0';
1443 ti1 = 1e10;
1444 vid = 0;
1445 for(i=0;i<nb_ostreams;i++) {
1446 ost = ost_table[i];
1447 enc = ost->st->codec;
1448 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1449 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1450 !ost->st->stream_copy ?
1451 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1452 }
1453 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1454 float t = (av_gettime()-timer_start) / 1000000.0;
1455
1456 frame_number = ost->frame_number;
1457 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1458 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1459 !ost->st->stream_copy ?
1460 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1461 if(is_last_report)
1462 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1463 if(qp_hist){
1464 int j;
1465 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1466 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1467 qp_histogram[qp]++;
1468 for(j=0; j<32; j++)
1469 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1470 }
1471 if (enc->flags&CODEC_FLAG_PSNR){
1472 int j;
1473 double error, error_sum=0;
1474 double scale, scale_sum=0;
1475 char type[3]= {'Y','U','V'};
1476 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1477 for(j=0; j<3; j++){
1478 if(is_last_report){
1479 error= enc->error[j];
1480 scale= enc->width*enc->height*255.0*255.0*frame_number;
1481 }else{
1482 error= enc->coded_frame->error[j];
1483 scale= enc->width*enc->height*255.0*255.0;
1484 }
1485 if(j) scale/=4;
1486 error_sum += error;
1487 scale_sum += scale;
1488 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1489 }
1490 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1491 }
1492 vid = 1;
1493 }
1494 /* compute min output value */
1495 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1496 if ((pts < ti1) && (pts > 0))
1497 ti1 = pts;
1498 }
1499 if (ti1 < 0.01)
1500 ti1 = 0.01;
1501
1502 if (verbose || is_last_report) {
1503 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1504
1505 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1506 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1507 (double)total_size / 1024, ti1, bitrate);
1508
1509 if (nb_frames_dup || nb_frames_drop)
1510 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1511 nb_frames_dup, nb_frames_drop);
1512
1513 if (verbose >= 0)
1514 fprintf(stderr, "%s \r", buf);
1515
1516 fflush(stderr);
1517 }
1518
1519 if (is_last_report && verbose >= 0){
1520 int64_t raw= audio_size + video_size + extra_size;
1521 fprintf(stderr, "\n");
1522 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1523 video_size/1024.0,
1524 audio_size/1024.0,
1525 extra_size/1024.0,
1526 100.0*(total_size - raw)/raw
1527 );
1528 }
1529 }
1530
1531 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1532 static int output_packet(AVInputStream *ist, int ist_index,
1533 AVOutputStream **ost_table, int nb_ostreams,
1534 const AVPacket *pkt)
1535 {
1536 AVFormatContext *os;
1537 AVOutputStream *ost;
1538 int ret, i;
1539 int got_picture;
1540 AVFrame picture;
1541 void *buffer_to_free;
1542 static unsigned int samples_size= 0;
1543 AVSubtitle subtitle, *subtitle_to_free;
1544 #if CONFIG_AVFILTER
1545 int frame_available;
1546 #endif
1547
1548 AVPacket avpkt;
1549 int bps = av_get_bits_per_sample_format(ist->st->codec->sample_fmt)>>3;
1550
1551 if(ist->next_pts == AV_NOPTS_VALUE)
1552 ist->next_pts= ist->pts;
1553
1554 if (pkt == NULL) {
1555 /* EOF handling */
1556 av_init_packet(&avpkt);
1557 avpkt.data = NULL;
1558 avpkt.size = 0;
1559 goto handle_eof;
1560 } else {
1561 avpkt = *pkt;
1562 }
1563
1564 if(pkt->dts != AV_NOPTS_VALUE)
1565 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1566
1567 //while we have more to decode or while the decoder did output something on EOF
1568 while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1569 uint8_t *data_buf, *decoded_data_buf;
1570 int data_size, decoded_data_size;
1571 handle_eof:
1572 ist->pts= ist->next_pts;
1573
1574 if(avpkt.size && avpkt.size != pkt->size &&
1575 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1576 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1577 ist->showed_multi_packet_warning=1;
1578 }
1579
1580 /* decode the packet if needed */
1581 decoded_data_buf = NULL; /* fail safe */
1582 decoded_data_size= 0;
1583 data_buf = avpkt.data;
1584 data_size = avpkt.size;
1585 subtitle_to_free = NULL;
1586 if (ist->decoding_needed) {
1587 switch(ist->st->codec->codec_type) {
1588 case AVMEDIA_TYPE_AUDIO:{
1589 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1590 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1591 av_free(samples);
1592 samples= av_malloc(samples_size);
1593 }
1594 decoded_data_size= samples_size;
1595 /* XXX: could avoid copy if PCM 16 bits with same
1596 endianness as CPU */
1597 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1598 &avpkt);
1599 if (ret < 0)
1600 goto fail_decode;
1601 avpkt.data += ret;
1602 avpkt.size -= ret;
1603 data_size = ret;
1604 /* Some bug in mpeg audio decoder gives */
1605 /* decoded_data_size < 0, it seems they are overflows */
1606 if (decoded_data_size <= 0) {
1607 /* no audio frame */
1608 continue;
1609 }
1610 decoded_data_buf = (uint8_t *)samples;
1611 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1612 (ist->st->codec->sample_rate * ist->st->codec->channels);
1613 break;}
1614 case AVMEDIA_TYPE_VIDEO:
1615 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1616 /* XXX: allocate picture correctly */
1617 avcodec_get_frame_defaults(&picture);
1618
1619 ret = avcodec_decode_video2(ist->st->codec,
1620 &picture, &got_picture, &avpkt);
1621 ist->st->quality= picture.quality;
1622 if (ret < 0)
1623 goto fail_decode;
1624 if (!got_picture) {
1625 /* no picture yet */
1626 goto discard_packet;
1627 }
1628 if (ist->st->codec->time_base.num != 0) {
1629 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1630 ist->next_pts += ((int64_t)AV_TIME_BASE *
1631 ist->st->codec->time_base.num * ticks) /
1632 ist->st->codec->time_base.den;
1633 }
1634 avpkt.size = 0;
1635 break;
1636 case AVMEDIA_TYPE_SUBTITLE:
1637 ret = avcodec_decode_subtitle2(ist->st->codec,
1638 &subtitle, &got_picture, &avpkt);
1639 if (ret < 0)
1640 goto fail_decode;
1641 if (!got_picture) {
1642 goto discard_packet;
1643 }
1644 subtitle_to_free = &subtitle;
1645 avpkt.size = 0;
1646 break;
1647 default:
1648 goto fail_decode;
1649 }
1650 } else {
1651 switch(ist->st->codec->codec_type) {
1652 case AVMEDIA_TYPE_AUDIO:
1653 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1654 ist->st->codec->sample_rate;
1655 break;
1656 case AVMEDIA_TYPE_VIDEO:
1657 if (ist->st->codec->time_base.num != 0) {
1658 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1659 ist->next_pts += ((int64_t)AV_TIME_BASE *
1660 ist->st->codec->time_base.num * ticks) /
1661 ist->st->codec->time_base.den;
1662 }
1663 break;
1664 }
1665 ret = avpkt.size;
1666 avpkt.size = 0;
1667 }
1668
1669 buffer_to_free = NULL;
1670 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1671 pre_process_video_frame(ist, (AVPicture *)&picture,
1672 &buffer_to_free);
1673 }
1674
1675 #if CONFIG_AVFILTER
1676 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->input_video_filter) {
1677 // add it to be filtered
1678 av_vsrc_buffer_add_frame(ist->input_video_filter, &picture,
1679 ist->pts,
1680 ist->st->codec->sample_aspect_ratio);
1681 }
1682 #endif
1683
1684 // preprocess audio (volume)
1685 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1686 if (audio_volume != 256) {
1687 short *volp;
1688 volp = samples;
1689 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1690 int v = ((*volp) * audio_volume + 128) >> 8;
1691 if (v < -32768) v = -32768;
1692 if (v > 32767) v = 32767;
1693 *volp++ = v;
1694 }
1695 }
1696 }
1697
1698 /* frame rate emulation */
1699 if (rate_emu) {
1700 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1701 int64_t now = av_gettime() - ist->start;
1702 if (pts > now)
1703 usleep(pts - now);
1704 }
1705 #if CONFIG_AVFILTER
1706 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1707 !ist->output_video_filter || avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1708 #endif
1709 /* if output time reached then transcode raw format,
1710 encode packets and output them */
1711 if (start_time == 0 || ist->pts >= start_time)
1712 #if CONFIG_AVFILTER
1713 while (frame_available) {
1714 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->output_video_filter)
1715 get_filtered_video_pic(ist->output_video_filter, &ist->picref, &picture, &ist->pts);
1716 #endif
1717 for(i=0;i<nb_ostreams;i++) {
1718 int frame_size;
1719
1720 ost = ost_table[i];
1721 if (ost->source_index == ist_index) {
1722 os = output_files[ost->file_index];
1723
1724 /* set the input output pts pairs */
1725 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1726
1727 if (ost->encoding_needed) {
1728 av_assert0(ist->decoding_needed);
1729 switch(ost->st->codec->codec_type) {
1730 case AVMEDIA_TYPE_AUDIO:
1731 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1732 break;
1733 case AVMEDIA_TYPE_VIDEO:
1734 #if CONFIG_AVFILTER
1735 if (ist->picref->video)
1736 ost->st->codec->sample_aspect_ratio = ist->picref->video->pixel_aspect;
1737 #endif
1738 do_video_out(os, ost, ist, &picture, &frame_size);
1739 if (vstats_filename && frame_size)
1740 do_video_stats(os, ost, frame_size);
1741 break;
1742 case AVMEDIA_TYPE_SUBTITLE:
1743 do_subtitle_out(os, ost, ist, &subtitle,
1744 pkt->pts);
1745 break;
1746 default:
1747 abort();
1748 }
1749 } else {
1750 AVFrame avframe; //FIXME/XXX remove this
1751 AVPacket opkt;
1752 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1753
1754 av_init_packet(&opkt);
1755
1756 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1757 continue;
1758
1759 /* no reencoding needed : output the packet directly */
1760 /* force the input stream PTS */
1761
1762 avcodec_get_frame_defaults(&avframe);
1763 ost->st->codec->coded_frame= &avframe;
1764 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1765
1766 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1767 audio_size += data_size;
1768 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1769 video_size += data_size;
1770 ost->sync_opts++;
1771 }
1772
1773 opkt.stream_index= ost->index;
1774 if(pkt->pts != AV_NOPTS_VALUE)
1775 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1776 else
1777 opkt.pts= AV_NOPTS_VALUE;
1778
1779 if (pkt->dts == AV_NOPTS_VALUE)
1780 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1781 else
1782 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1783 opkt.dts -= ost_tb_start_time;
1784
1785 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1786 opkt.flags= pkt->flags;
1787
1788 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1789 if( ost->st->codec->codec_id != CODEC_ID_H264
1790 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1791 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1792 ) {
1793 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1794 opkt.destruct= av_destruct_packet;
1795 } else {
1796 opkt.data = data_buf;
1797 opkt.size = data_size;
1798 }
1799
1800 write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);
1801 ost->st->codec->frame_number++;
1802 ost->frame_number++;
1803 av_free_packet(&opkt);
1804 }
1805 }
1806 }
1807
1808 #if CONFIG_AVFILTER
1809 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1810 ist->output_video_filter && avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1811 if(ist->picref)
1812 avfilter_unref_buffer(ist->picref);
1813 }
1814 #endif
1815 av_free(buffer_to_free);
1816 /* XXX: allocate the subtitles in the codec ? */
1817 if (subtitle_to_free) {
1818 if (subtitle_to_free->rects != NULL) {
1819 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1820 av_freep(&subtitle_to_free->rects[i]->pict.data[0]);
1821 av_freep(&subtitle_to_free->rects[i]->pict.data[1]);
1822 av_freep(&subtitle_to_free->rects[i]);
1823 }
1824 av_freep(&subtitle_to_free->rects);
1825 }
1826 subtitle_to_free->num_rects = 0;
1827 subtitle_to_free = NULL;
1828 }
1829 }
1830 discard_packet:
1831 if (pkt == NULL) {
1832 /* EOF handling */
1833
1834 for(i=0;i<nb_ostreams;i++) {
1835 ost = ost_table[i];
1836 if (ost->source_index == ist_index) {
1837 AVCodecContext *enc= ost->st->codec;
1838 os = output_files[ost->file_index];
1839
1840 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1841 continue;
1842 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1843 continue;
1844
1845 if (ost->encoding_needed) {
1846 for(;;) {
1847 AVPacket pkt;
1848 int fifo_bytes;
1849 av_init_packet(&pkt);
1850 pkt.stream_index= ost->index;
1851
1852 switch(ost->st->codec->codec_type) {
1853 case AVMEDIA_TYPE_AUDIO:
1854 fifo_bytes = av_fifo_size(ost->fifo);
1855 ret = 0;
1856 /* encode any samples remaining in fifo */
1857 if (fifo_bytes > 0) {
1858 int osize = av_get_bits_per_sample_format(enc->sample_fmt) >> 3;
1859 int fs_tmp = enc->frame_size;
1860
1861 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1862 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1863 enc->frame_size = fifo_bytes / (osize * enc->channels);
1864 } else { /* pad */
1865 int frame_bytes = enc->frame_size*osize*enc->channels;
1866 if (allocated_audio_buf_size < frame_bytes)
1867 ffmpeg_exit(1);
1868 memset(audio_buf+fifo_bytes, 0, frame_bytes - fifo_bytes);
1869 }
1870
1871 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1872 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1873 ost->st->time_base.num, enc->sample_rate);
1874 enc->frame_size = fs_tmp;
1875 }
1876 if(ret <= 0) {
1877 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1878 }
1879 if (ret < 0) {
1880 fprintf(stderr, "Audio encoding failed\n");
1881 ffmpeg_exit(1);
1882 }
1883 audio_size += ret;
1884 pkt.flags |= AV_PKT_FLAG_KEY;
1885 break;
1886 case AVMEDIA_TYPE_VIDEO:
1887 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1888 if (ret < 0) {
1889 fprintf(stderr, "Video encoding failed\n");
1890 ffmpeg_exit(1);
1891 }
1892 video_size += ret;
1893 if(enc->coded_frame && enc->coded_frame->key_frame)
1894 pkt.flags |= AV_PKT_FLAG_KEY;
1895 if (ost->logfile && enc->stats_out) {
1896 fprintf(ost->logfile, "%s", enc->stats_out);
1897 }
1898 break;
1899 default:
1900 ret=-1;
1901 }
1902
1903 if(ret<=0)
1904 break;
1905 pkt.data= bit_buffer;
1906 pkt.size= ret;
1907 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1908 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1909 write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1910 }
1911 }
1912 }
1913 }
1914 }
1915
1916 return 0;
1917 fail_decode:
1918 return -1;
1919 }
1920
1921 static void print_sdp(AVFormatContext **avc, int n)
1922 {
1923 char sdp[2048];
1924
1925 avf_sdp_create(avc, n, sdp, sizeof(sdp));
1926 printf("SDP:\n%s\n", sdp);
1927 fflush(stdout);
1928 }
1929
1930 static int copy_chapters(int infile, int outfile)
1931 {
1932 AVFormatContext *is = input_files[infile];
1933 AVFormatContext *os = output_files[outfile];
1934 int i;
1935
1936 for (i = 0; i < is->nb_chapters; i++) {
1937 AVChapter *in_ch = is->chapters[i], *out_ch;
1938 AVMetadataTag *t = NULL;
1939 int64_t ts_off = av_rescale_q(start_time - input_files_ts_offset[infile],
1940 AV_TIME_BASE_Q, in_ch->time_base);
1941 int64_t rt = (recording_time == INT64_MAX) ? INT64_MAX :
1942 av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1943
1944
1945 if (in_ch->end < ts_off)
1946 continue;
1947 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1948 break;
1949
1950 out_ch = av_mallocz(sizeof(AVChapter));
1951 if (!out_ch)
1952 return AVERROR(ENOMEM);
1953
1954 out_ch->id = in_ch->id;
1955 out_ch->time_base = in_ch->time_base;
1956 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1957 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1958
1959 while ((t = av_metadata_get(in_ch->metadata, "", t, AV_METADATA_IGNORE_SUFFIX)))
1960 av_metadata_set2(&out_ch->metadata, t->key, t->value, 0);
1961
1962 os->nb_chapters++;
1963 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1964 if (!os->chapters)
1965 return AVERROR(ENOMEM);
1966 os->chapters[os->nb_chapters - 1] = out_ch;
1967 }
1968 return 0;
1969 }
1970
1971 /*
1972 * The following code is the main loop of the file converter
1973 */
1974 static int transcode(AVFormatContext **output_files,
1975 int nb_output_files,
1976 AVFormatContext **input_files,
1977 int nb_input_files,
1978 AVStreamMap *stream_maps, int nb_stream_maps)
1979 {
1980 int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1981 AVFormatContext *is, *os;
1982 AVCodecContext *codec, *icodec;
1983 AVOutputStream *ost, **ost_table = NULL;
1984 AVInputStream *ist, **ist_table = NULL;
1985 AVInputFile *file_table;
1986 char error[1024];
1987 int key;
1988 int want_sdp = 1;
1989 uint8_t no_packet[MAX_FILES]={0};
1990 int no_packet_count=0;
1991
1992 file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1993 if (!file_table)
1994 goto fail;
1995
1996 /* input stream init */
1997 j = 0;
1998 for(i=0;i<nb_input_files;i++) {
1999 is = input_files[i];
2000 file_table[i].ist_index = j;
2001 file_table[i].nb_streams = is->nb_streams;
2002 j += is->nb_streams;
2003 }
2004 nb_istreams = j;
2005
2006 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
2007 if (!ist_table)
2008 goto fail;
2009
2010 for(i=0;i<nb_istreams;i++) {
2011 ist = av_mallocz(sizeof(AVInputStream));
2012 if (!ist)
2013 goto fail;
2014 ist_table[i] = ist;
2015 }
2016 j = 0;
2017 for(i=0;i<nb_input_files;i++) {
2018 is = input_files[i];
2019 for(k=0;k<is->nb_streams;k++) {
2020 ist = ist_table[j++];
2021 ist->st = is->streams[k];
2022 ist->file_index = i;
2023 ist->index = k;
2024 ist->discard = 1; /* the stream is discarded by default
2025 (changed later) */
2026
2027 if (rate_emu) {
2028 ist->start = av_gettime();
2029 }
2030 }
2031 }
2032
2033 /* output stream init */
2034 nb_ostreams = 0;
2035 for(i=0;i<nb_output_files;i++) {
2036 os = output_files[i];
2037 if (!os->nb_streams) {
2038 dump_format(output_files[i], i, output_files[i]->filename, 1);
2039 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
2040 ret = AVERROR(EINVAL);
2041 goto fail;
2042 }
2043 nb_ostreams += os->nb_streams;
2044 }
2045 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
2046 fprintf(stderr, "Number of stream maps must match number of output streams\n");
2047 ret = AVERROR(EINVAL);
2048 goto fail;
2049 }
2050
2051 /* Sanity check the mapping args -- do the input files & streams exist? */
2052 for(i=0;i<nb_stream_maps;i++) {
2053 int fi = stream_maps[i].file_index;
2054 int si = stream_maps[i].stream_index;
2055
2056 if (fi < 0 || fi > nb_input_files - 1 ||
2057 si < 0 || si > file_table[fi].nb_streams - 1) {
2058 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
2059 ret = AVERROR(EINVAL);
2060 goto fail;
2061 }
2062 fi = stream_maps[i].sync_file_index;
2063 si = stream_maps[i].sync_stream_index;
2064 if (fi < 0 || fi > nb_input_files - 1 ||
2065 si < 0 || si > file_table[fi].nb_streams - 1) {
2066 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2067 ret = AVERROR(EINVAL);
2068 goto fail;
2069 }
2070 }
2071
2072 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
2073 if (!ost_table)
2074 goto fail;
2075 for(i=0;i<nb_ostreams;i++) {
2076 ost = av_mallocz(sizeof(AVOutputStream));
2077 if (!ost)
2078 goto fail;
2079 ost_table[i] = ost;
2080 }
2081
2082 n = 0;
2083 for(k=0;k<nb_output_files;k++) {
2084 os = output_files[k];
2085 for(i=0;i<os->nb_streams;i++,n++) {
2086 int found;
2087 ost = ost_table[n];
2088 ost->file_index = k;
2089 ost->index = i;
2090 ost->st = os->streams[i];
2091 if (nb_stream_maps > 0) {
2092 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
2093 stream_maps[n].stream_index;
2094
2095 /* Sanity check that the stream types match */
2096 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
2097 int i= ost->file_index;
2098 dump_format(output_files[i], i, output_files[i]->filename, 1);
2099 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2100 stream_maps[n].file_index, stream_maps[n].stream_index,
2101 ost->file_index, ost->index);
2102 ffmpeg_exit(1);
2103 }
2104
2105 } else {
2106 int best_nb_frames=-1;
2107 /* get corresponding input stream index : we select the first one with the right type */
2108 found = 0;
2109 for(j=0;j<nb_istreams;j++) {
2110 int skip=0;
2111 ist = ist_table[j];
2112 if(opt_programid){
2113 int pi,si;
2114 AVFormatContext *f= input_files[ ist->file_index ];
2115 skip=1;
2116 for(pi=0; pi<f->nb_programs; pi++){
2117 AVProgram *p= f->programs[pi];
2118 if(p->id == opt_programid)
2119 for(si=0; si<p->nb_stream_indexes; si++){
2120 if(f->streams[ p->stream_index[si] ] == ist->st)
2121 skip=0;
2122 }
2123 }
2124 }
2125 if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2126 ist->st->codec->codec_type == ost->st->codec->codec_type) {
2127 if(best_nb_frames < ist->st->codec_info_nb_frames){
2128 best_nb_frames= ist->st->codec_info_nb_frames;
2129 ost->source_index = j;
2130 found = 1;
2131 }
2132 }
2133 }
2134
2135 if (!found) {
2136 if(! opt_programid) {
2137 /* try again and reuse existing stream */
2138 for(j=0;j<nb_istreams;j++) {
2139 ist = ist_table[j];
2140 if ( ist->st->codec->codec_type == ost->st->codec->codec_type
2141 && ist->st->discard != AVDISCARD_ALL) {
2142 ost->source_index = j;
2143 found = 1;
2144 }
2145 }
2146 }
2147 if (!found) {
2148 int i= ost->file_index;
2149 dump_format(output_files[i], i, output_files[i]->filename, 1);
2150 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2151 ost->file_index, ost->index);
2152 ffmpeg_exit(1);
2153 }
2154 }
2155 }
2156 ist = ist_table[ost->source_index];
2157 ist->discard = 0;
2158 ost->sync_ist = (nb_stream_maps > 0) ?
2159 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2160 stream_maps[n].sync_stream_index] : ist;
2161 }
2162 }
2163
2164 /* for each output stream, we compute the right encoding parameters */
2165 for(i=0;i<nb_ostreams;i++) {
2166 AVMetadataTag *t = NULL;
2167 ost = ost_table[i];
2168 os = output_files[ost->file_index];
2169 ist = ist_table[ost->source_index];
2170
2171 codec = ost->st->codec;
2172 icodec = ist->st->codec;
2173
2174 while ((t = av_metadata_get(ist->st->metadata, "", t, AV_METADATA_IGNORE_SUFFIX))) {
2175 av_metadata_set2(&ost->st->metadata, t->key, t->value, AV_METADATA_DONT_OVERWRITE);
2176 }
2177
2178 ost->st->disposition = ist->st->disposition;
2179 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2180 codec->chroma_sample_location = icodec->chroma_sample_location;
2181
2182 if (ost->st->stream_copy) {
2183 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2184
2185 if (extra_size > INT_MAX)
2186 goto fail;
2187
2188 /* if stream_copy is selected, no need to decode or encode */
2189 codec->codec_id = icodec->codec_id;
2190 codec->codec_type = icodec->codec_type;
2191
2192 if(!codec->codec_tag){
2193 if( !os->oformat->codec_tag
2194 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2195 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2196 codec->codec_tag = icodec->codec_tag;
2197 }
2198
2199 codec->bit_rate = icodec->bit_rate;
2200 codec->rc_max_rate = icodec->rc_max_rate;
2201 codec->rc_buffer_size = icodec->rc_buffer_size;
2202 codec->extradata= av_mallocz(extra_size);
2203 if (!codec->extradata)
2204 goto fail;
2205 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2206 codec->extradata_size= icodec->extradata_size;
2207 if(av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/1000){
2208 codec->time_base = icodec->time_base;
2209 codec->time_base.num *= icodec->ticks_per_frame;
2210 av_reduce(&codec->time_base.num, &codec->time_base.den,
2211 codec->time_base.num, codec->time_base.den, INT_MAX);
2212 }else
2213 codec->time_base = ist->st->time_base;
2214 switch(codec->codec_type) {
2215 case AVMEDIA_TYPE_AUDIO:
2216 if(audio_volume != 256) {
2217 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2218 ffmpeg_exit(1);
2219 }
2220 codec->channel_layout = icodec->channel_layout;
2221 codec->sample_rate = icodec->sample_rate;
2222 codec->channels = icodec->channels;
2223 codec->frame_size = icodec->frame_size;
2224 codec->block_align= icodec->block_align;
2225 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2226 codec->block_align= 0;
2227 if(codec->codec_id == CODEC_ID_AC3)
2228 codec->block_align= 0;
2229 break;
2230 case AVMEDIA_TYPE_VIDEO:
2231 codec->pix_fmt = icodec->pix_fmt;
2232 codec->width = icodec->width;
2233 codec->height = icodec->height;
2234 codec->has_b_frames = icodec->has_b_frames;
2235 break;
2236 case AVMEDIA_TYPE_SUBTITLE:
2237 codec->width = icodec->width;
2238 codec->height = icodec->height;
2239 break;
2240 default:
2241 abort();
2242 }
2243 } else {
2244 switch(codec->codec_type) {
2245 case AVMEDIA_TYPE_AUDIO:
2246 ost->fifo= av_fifo_alloc(1024);
2247 if(!ost->fifo)
2248 goto fail;
2249 ost->reformat_pair = MAKE_SFMT_PAIR(SAMPLE_FMT_NONE,SAMPLE_FMT_NONE);
2250 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2251 icodec->request_channels = codec->channels;
2252 ist->decoding_needed = 1;
2253 ost->encoding_needed = 1;
2254 break;
2255 case AVMEDIA_TYPE_VIDEO:
2256 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2257 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2258 ffmpeg_exit(1);
2259 }
2260 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
2261 ost->video_resample = ((codec->width != icodec->width -
2262 (frame_leftBand + frame_rightBand)) ||
2263 (codec->height != icodec->height -
2264 (frame_topBand + frame_bottomBand)) ||
2265 (codec->pix_fmt != icodec->pix_fmt));
2266 if (ost->video_crop) {
2267 ost->topBand = ost->original_topBand = frame_topBand;
2268 ost->bottomBand = ost->original_bottomBand = frame_bottomBand;
2269 ost->leftBand = ost->original_leftBand = frame_leftBand;
2270 ost->rightBand = ost->original_rightBand = frame_rightBand;
2271 }
2272 if (ost->video_resample) {
2273 avcodec_get_frame_defaults(&ost->pict_tmp);
2274 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2275 codec->width, codec->height)) {
2276 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2277 ffmpeg_exit(1);
2278 }
2279 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
2280 ost->img_resample_ctx = sws_getContext(
2281 icodec->width - (frame_leftBand + frame_rightBand),
2282 icodec->height - (frame_topBand + frame_bottomBand),
2283 icodec->pix_fmt,
2284 codec->width,
2285 codec->height,
2286 codec->pix_fmt,
2287 sws_flags, NULL, NULL, NULL);
2288 if (ost->img_resample_ctx == NULL) {
2289 fprintf(stderr, "Cannot get resampling context\n");
2290 ffmpeg_exit(1);
2291 }
2292
2293 #if !CONFIG_AVFILTER
2294 ost->original_height = icodec->height;
2295 ost->original_width = icodec->width;
2296 #endif
2297 codec->bits_per_raw_sample= 0;
2298 }
2299 ost->resample_height = icodec->height - (frame_topBand + frame_bottomBand);
2300 ost->resample_width = icodec->width - (frame_leftBand + frame_rightBand);
2301 ost->resample_pix_fmt= icodec->pix_fmt;
2302 ost->encoding_needed = 1;
2303 ist->decoding_needed = 1;
2304
2305 #if CONFIG_AVFILTER
2306 if (configure_filters(ist, ost)) {
2307 fprintf(stderr, "Error opening filters!\n");
2308 exit(1);
2309 }
2310 #endif
2311 break;
2312 case AVMEDIA_TYPE_SUBTITLE:
2313 ost->encoding_needed = 1;
2314 ist->decoding_needed = 1;
2315 break;
2316 default:
2317 abort();
2318 break;
2319 }
2320 /* two pass mode */
2321 if (ost->encoding_needed &&
2322 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2323 char logfilename[1024];
2324 FILE *f;
2325
2326 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2327 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2328 i);
2329 if (codec->flags & CODEC_FLAG_PASS1) {
2330 f = fopen(logfilename, "wb");
2331 if (!f) {
2332 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2333 ffmpeg_exit(1);
2334 }
2335 ost->logfile = f;
2336 } else {
2337 char *logbuffer;
2338 size_t logbuffer_size;
2339 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2340 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2341 ffmpeg_exit(1);
2342 }
2343 codec->stats_in = logbuffer;
2344 }
2345 }
2346 }
2347 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2348 int size= codec->width * codec->height;
2349 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2350 }
2351 }
2352
2353 if (!bit_buffer)
2354 bit_buffer = av_malloc(bit_buffer_size);
2355 if (!bit_buffer) {
2356 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2357 bit_buffer_size);
2358 ret = AVERROR(ENOMEM);
2359 goto fail;
2360 }
2361
2362 /* open each encoder */
2363 for(i=0;i<nb_ostreams;i++) {
2364 ost = ost_table[i];
2365 if (ost->encoding_needed) {
2366 AVCodec *codec = i < nb_output_codecs ? output_codecs[i] : NULL;
2367 if (!codec)
2368 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2369 if (!codec) {
2370 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2371 ost->st->codec->codec_id, ost->file_index, ost->index);
2372 ret = AVERROR(EINVAL);
2373 goto dump_format;
2374 }
2375 if (avcodec_open(ost->st->codec, codec) < 0) {
2376 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2377 ost->file_index, ost->index);
2378 ret = AVERROR(EINVAL);
2379 goto dump_format;
2380 }
2381 extra_size += ost->st->codec->extradata_size;
2382 }
2383 }
2384
2385 /* open each decoder */
2386 for(i=0;i<nb_istreams;i++) {
2387 ist = ist_table[i];
2388 if (ist->decoding_needed) {
2389 AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2390 if (!codec)
2391 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2392 if (!codec) {
2393 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2394 ist->st->codec->codec_id, ist->file_index, ist->index);
2395 ret = AVERROR(EINVAL);
2396 goto dump_format;
2397 }
2398 if (avcodec_open(ist->st->codec, codec) < 0) {
2399 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2400 ist->file_index, ist->index);
2401 ret = AVERROR(EINVAL);
2402 goto dump_format;
2403 }
2404 //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2405 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2406 }
2407 }
2408
2409 /* init pts */
2410 for(i=0;i<nb_istreams;i++) {
2411 AVStream *st;
2412 ist = ist_table[i];
2413 st= ist->st;
2414 ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2415 ist->next_pts = AV_NOPTS_VALUE;
2416 ist->is_start = 1;
2417 }
2418
2419 /* set meta data information from input file if required */
2420 for (i=0;i<nb_meta_data_maps;i++) {
2421 AVFormatContext *out_file;
2422 AVFormatContext *in_file;
2423 AVMetadataTag *mtag;
2424
2425 int out_file_index = meta_data_maps[i].out_file;
2426 int in_file_index = meta_data_maps[i].in_file;
2427 if (out_file_index < 0 || out_file_index >= nb_output_files) {
2428 snprintf(error, sizeof(error), "Invalid output file index %d map_meta_data(%d,%d)",
2429 out_file_index, out_file_index, in_file_index);
2430 ret = AVERROR(EINVAL);
2431 goto dump_format;
2432 }
2433 if (in_file_index < 0 || in_file_index >= nb_input_files) {
2434 snprintf(error, sizeof(error), "Invalid input file index %d map_meta_data(%d,%d)",
2435 in_file_index, out_file_index, in_file_index);
2436 ret = AVERROR(EINVAL);
2437 goto dump_format;
2438 }
2439
2440 out_file = output_files[out_file_index];
2441 in_file = input_files[in_file_index];
2442
2443
2444 mtag=NULL;
2445 while((mtag=av_metadata_get(in_file->metadata, "", mtag, AV_METADATA_IGNORE_SUFFIX)))
2446 av_metadata_set2(&out_file->metadata, mtag->key, mtag->value, AV_METADATA_DONT_OVERWRITE);
2447 av_metadata_conv(out_file, out_file->oformat->metadata_conv,
2448 in_file->iformat->metadata_conv);
2449 }
2450
2451 /* copy chapters from the first input file that has them*/
2452 for (i = 0; i < nb_input_files; i++) {
2453 if (!input_files[i]->nb_chapters)
2454 continue;
2455
2456 for (j = 0; j < nb_output_files; j++)
2457 if ((ret = copy_chapters(i, j)) < 0)
2458 goto dump_format;
2459 }
2460
2461 /* open files and write file headers */
2462 for(i=0;i<nb_output_files;i++) {
2463 os = output_files[i];
2464 if (av_write_header(os) < 0) {
2465 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2466 ret = AVERROR(EINVAL);
2467 goto dump_format;
2468 }
2469 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2470 want_sdp = 0;
2471 }
2472 }
2473
2474 dump_format:
2475 /* dump the file output parameters - cannot be done before in case
2476 of stream copy */
2477 for(i=0;i<nb_output_files;i++) {
2478 dump_format(output_files[i], i, output_files[i]->filename, 1);
2479 }
2480
2481 /* dump the stream mapping */
2482 if (verbose >= 0) {
2483 fprintf(stderr, "Stream mapping:\n");
2484 for(i=0;i<nb_ostreams;i++) {
2485 ost = ost_table[i];
2486 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2487 ist_table[ost->source_index]->file_index,
2488 ist_table[ost->source_index]->index,
2489 ost->file_index,
2490 ost->index);
2491 if (ost->sync_ist != ist_table[ost->source_index])
2492 fprintf(stderr, " [sync #%d.%d]",
2493 ost->sync_ist->file_index,
2494 ost->sync_ist->index);
2495 fprintf(stderr, "\n");
2496 }
2497 }
2498
2499 if (ret) {
2500 fprintf(stderr, "%s\n", error);
2501 goto fail;
2502 }
2503
2504 if (want_sdp) {
2505 print_sdp(output_files, nb_output_files);
2506 }
2507
2508 if (!using_stdin && verbose >= 0) {
2509 fprintf(stderr, "Press [q] to stop encoding\n");
2510 url_set_interrupt_cb(decode_interrupt_cb);
2511 }
2512 term_init();
2513
2514 timer_start = av_gettime();
2515
2516 for(; received_sigterm == 0;) {
2517 int file_index, ist_index;
2518 AVPacket pkt;
2519 double ipts_min;
2520 double opts_min;
2521
2522 redo:
2523 ipts_min= 1e100;
2524 opts_min= 1e100;
2525 /* if 'q' pressed, exits */
2526 if (!using_stdin) {
2527 if (q_pressed)
2528 break;
2529 /* read_key() returns 0 on EOF */
2530 key = read_key();
2531 if (key == 'q')
2532 break;
2533 }
2534
2535 /* select the stream that we must read now by looking at the
2536 smallest output pts */
2537 file_index = -1;
2538 for(i=0;i<nb_ostreams;i++) {
2539 double ipts, opts;
2540 ost = ost_table[i];
2541 os = output_files[ost->file_index];
2542 ist = ist_table[ost->source_index];
2543 if(ist->is_past_recording_time || no_packet[ist->file_index])
2544 continue;
2545 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2546 ipts = (double)ist->pts;
2547 if (!file_table[ist->file_index].eof_reached){
2548 if(ipts < ipts_min) {
2549 ipts_min = ipts;
2550 if(input_sync ) file_index = ist->file_index;
2551 }
2552 if(opts < opts_min) {
2553 opts_min = opts;
2554 if(!input_sync) file_index = ist->file_index;
2555 }
2556 }
2557 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2558 file_index= -1;
2559 break;
2560 }
2561 }
2562 /* if none, if is finished */
2563 if (file_index < 0) {
2564 if(no_packet_count){
2565 no_packet_count=0;
2566 memset(no_packet, 0, sizeof(no_packet));
2567 usleep(10000);
2568 continue;
2569 }
2570 break;
2571 }
2572
2573 /* finish if limit size exhausted */
2574 if (limit_filesize != 0 && limit_filesize <= url_ftell(output_files[0]->pb))
2575 break;
2576
2577 /* read a frame from it and output it in the fifo */
2578 is = input_files[file_index];
2579 ret= av_read_frame(is, &pkt);
2580 if(ret == AVERROR(EAGAIN)){
2581 no_packet[file_index]=1;
2582 no_packet_count++;
2583 continue;
2584 }
2585 if (ret < 0) {
2586 file_table[file_index].eof_reached = 1;
2587 if (opt_shortest)
2588 break;
2589 else
2590 continue;
2591 }
2592
2593 no_packet_count=0;
2594 memset(no_packet, 0, sizeof(no_packet));
2595
2596 if (do_pkt_dump) {
2597 av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2598 }
2599 /* the following test is needed in case new streams appear
2600 dynamically in stream : we ignore them */
2601 if (pkt.stream_index >= file_table[file_index].nb_streams)
2602 goto discard_packet;
2603 ist_index = file_table[file_index].ist_index + pkt.stream_index;
2604 ist = ist_table[ist_index];
2605 if (ist->discard)
2606 goto discard_packet;
2607
2608 if (pkt.dts != AV_NOPTS_VALUE)
2609 pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2610 if (pkt.pts != AV_NOPTS_VALUE)
2611 pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2612
2613 if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2614 && input_files_ts_scale[file_index][pkt.stream_index]){
2615 if(pkt.pts != AV_NOPTS_VALUE)
2616 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2617 if(pkt.dts != AV_NOPTS_VALUE)
2618 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2619 }
2620
2621 // fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files_ts_offset[ist->file_index], ist->st->codec->codec_type);
2622 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2623 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2624 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2625 int64_t delta= pkt_dts - ist->next_pts;
2626 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2627 input_files_ts_offset[ist->file_index]-= delta;
2628 if (verbose > 2)
2629 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2630 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2631 if(pkt.pts != AV_NOPTS_VALUE)
2632 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2633 }
2634 }
2635
2636 /* finish if recording time exhausted */
2637 if (recording_time != INT64_MAX &&
2638 av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2639 ist->is_past_recording_time = 1;
2640 goto discard_packet;
2641 }
2642
2643 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2644 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2645
2646 if (verbose >= 0)
2647 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2648 ist->file_index, ist->index);
2649 if (exit_on_error)
2650 ffmpeg_exit(1);
2651 av_free_packet(&pkt);
2652 goto redo;
2653 }
2654
2655 discard_packet:
2656 av_free_packet(&pkt);
2657
2658 /* dump report by using the output first video and audio streams */
2659 print_report(output_files, ost_table, nb_ostreams, 0);
2660 }
2661
2662 /* at the end of stream, we must flush the decoder buffers */
2663 for(i=0;i<nb_istreams;i++) {
2664 ist = ist_table[i];
2665 if (ist->decoding_needed) {
2666 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2667 }
2668 }
2669
2670 term_exit();
2671
2672 /* write the trailer if needed and close file */
2673 for(i=0;i<nb_output_files;i++) {
2674 os = output_files[i];
2675 av_write_trailer(os);
2676 }
2677
2678 /* dump report by using the first video and audio streams */
2679 print_report(output_files, ost_table, nb_ostreams, 1);
2680
2681 /* close each encoder */
2682 for(i=0;i<nb_ostreams;i++) {
2683 ost = ost_table[i];
2684 if (ost->encoding_needed) {
2685 av_freep(&ost->st->codec->stats_in);
2686 avcodec_close(ost->st->codec);
2687 }
2688 }
2689
2690 /* close each decoder */
2691 for(i=0;i<nb_istreams;i++) {
2692 ist = ist_table[i];
2693 if (ist->decoding_needed) {
2694 avcodec_close(ist->st->codec);
2695 }
2696 }
2697 #if CONFIG_AVFILTER
2698 if (graph) {
2699 avfilter_graph_destroy(graph);
2700 av_freep(&graph);
2701 }
2702 #endif
2703
2704 /* finished ! */
2705 ret = 0;
2706
2707 fail:
2708 av_freep(&bit_buffer);
2709 av_free(file_table);
2710
2711 if (ist_table) {
2712 for(i=0;i<nb_istreams;i++) {
2713 ist = ist_table[i];
2714 av_free(ist);
2715 }
2716 av_free(ist_table);
2717 }
2718 if (ost_table) {
2719 for(i=0;i<nb_ostreams;i++) {
2720 ost = ost_table[i];
2721 if (ost) {
2722 if (ost->st->stream_copy)
2723 av_freep(&ost->st->codec->extradata);
2724 if (ost->logfile) {
2725 fclose(ost->logfile);
2726 ost->logfile = NULL;
2727 }
2728 av_fifo_free(ost->fifo); /* works even if fifo is not
2729 initialized but set to zero */
2730 av_free(ost->pict_tmp.data[0]);
2731 if (ost->video_resample)
2732 sws_freeContext(ost->img_resample_ctx);
2733 if (ost->resample)
2734 audio_resample_close(ost->resample);
2735 if (ost->reformat_ctx)
2736 av_audio_convert_free(ost->reformat_ctx);
2737 av_free(ost);
2738 }
2739 }
2740 av_free(ost_table);
2741 }
2742 return ret;
2743 }
2744
2745 static void opt_format(const char *arg)
2746 {
2747 /* compatibility stuff for pgmyuv */
2748 if (!strcmp(arg, "pgmyuv")) {
2749 pgmyuv_compatibility_hack=1;
2750 // opt_image_format(arg);
2751 arg = "image2";
2752 fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2753 }
2754
2755 last_asked_format = arg;
2756 }
2757
2758 static void opt_video_rc_override_string(const char *arg)
2759 {
2760 video_rc_override_string = arg;
2761 }
2762
2763 static int opt_me_threshold(const char *opt, const char *arg)
2764 {
2765 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2766 return 0;
2767 }
2768
2769 static int opt_verbose(const char *opt, const char *arg)
2770 {
2771 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2772 return 0;
2773 }
2774
2775 static int opt_frame_rate(const char *opt, const char *arg)
2776 {
2777 if (av_parse_video_rate(&frame_rate, arg) < 0) {
2778 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2779 ffmpeg_exit(1);
2780 }
2781 return 0;
2782 }
2783
2784 static int opt_bitrate(const char *opt, const char *arg)
2785 {
2786 int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2787
2788 opt_default(opt, arg);
2789
2790 if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2791 fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2792
2793 return 0;
2794 }
2795
2796 static void opt_frame_crop_top(const char *arg)
2797 {
2798 frame_topBand = atoi(arg);
2799 if (frame_topBand < 0) {
2800 fprintf(stderr, "Incorrect top crop size\n");
2801 ffmpeg_exit(1);
2802 }
2803 if ((frame_topBand) >= frame_height){
2804 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2805 ffmpeg_exit(1);
2806 }
2807 fprintf(stderr, "-crop* is deprecated in favor of the crop avfilter\n");
2808 frame_height -= frame_topBand;
2809 }
2810
2811 static void opt_frame_crop_bottom(const char *arg)
2812 {
2813 frame_bottomBand = atoi(arg);
2814 if (frame_bottomBand < 0) {
2815 fprintf(stderr, "Incorrect bottom crop size\n");
2816 ffmpeg_exit(1);
2817 }
2818 if ((frame_bottomBand) >= frame_height){
2819 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2820 ffmpeg_exit(1);
2821 }
2822 fprintf(stderr, "-crop* is deprecated in favor of the crop avfilter\n");
2823 frame_height -= frame_bottomBand;
2824 }
2825
2826 static void opt_frame_crop_left(const char *arg)
2827 {
2828 frame_leftBand = atoi(arg);
2829 if (frame_leftBand < 0) {
2830 fprintf(stderr, "Incorrect left crop size\n");
2831 ffmpeg_exit(1);
2832 }
2833 if ((frame_leftBand) >= frame_width){
2834 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2835 ffmpeg_exit(1);
2836 }
2837 fprintf(stderr, "-crop* is deprecated in favor of the crop avfilter\n");
2838 frame_width -= frame_leftBand;
2839 }
2840
2841 static void opt_frame_crop_right(const char *arg)
2842 {
2843 frame_rightBand = atoi(arg);
2844 if (frame_rightBand < 0) {
2845 fprintf(stderr, "Incorrect right crop size\n");
2846 ffmpeg_exit(1);
2847 }
2848 if ((frame_rightBand) >= frame_width){
2849 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2850 ffmpeg_exit(1);
2851 }
2852 fprintf(stderr, "-crop* is deprecated in favor of the crop avfilter\n");
2853 frame_width -= frame_rightBand;
2854 }
2855
2856 static void opt_frame_size(const char *arg)
2857 {
2858 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2859 fprintf(stderr, "Incorrect frame size\n");
2860 ffmpeg_exit(1);
2861 }
2862 }
2863
2864 static int opt_pad(const char *opt, const char *arg) {
2865 fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2866 return -1;
2867 }
2868
2869 static void opt_frame_pix_fmt(const char *arg)
2870 {
2871 if (strcmp(arg, "list")) {
2872 frame_pix_fmt = av_get_pix_fmt(arg);
2873 if (frame_pix_fmt == PIX_FMT_NONE) {
2874 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2875 ffmpeg_exit(1);
2876 }
2877 } else {
2878 show_pix_fmts();
2879 ffmpeg_exit(0);
2880 }
2881 }
2882
2883 static void opt_frame_aspect_ratio(const char *arg)
2884 {
2885 int x = 0, y = 0;
2886 double ar = 0;
2887 const char *p;
2888 char *end;
2889
2890 p = strchr(arg, ':');
2891 if (p) {
2892 x = strtol(arg, &end, 10);
2893 if (end == p)
2894 y = strtol(end+1, &end, 10);
2895 if (x > 0 && y > 0)
2896 ar = (double)x / (double)y;
2897 } else
2898 ar = strtod(arg, NULL);
2899
2900 if (!ar) {
2901 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2902 ffmpeg_exit(1);
2903 }
2904 frame_aspect_ratio = ar;
2905 }
2906
2907 static int opt_metadata(const char *opt, const char *arg)
2908 {
2909 char *mid= strchr(arg, '=');
2910
2911 if(!mid){
2912 fprintf(stderr, "Missing =\n");
2913 ffmpeg_exit(1);
2914 }
2915 *mid++= 0;
2916
2917 metadata_count++;
2918 metadata= av_realloc(metadata, sizeof(*metadata)*metadata_count);
2919 metadata[metadata_count-1].key = av_strdup(arg);
2920 metadata[metadata_count-1].value= av_strdup(mid);
2921
2922 return 0;
2923 }
2924
2925 static void opt_qscale(const char *arg)
2926 {
2927 video_qscale = atof(arg);
2928 if (video_qscale <= 0 ||
2929 video_qscale > 255) {
2930 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2931 ffmpeg_exit(1);
2932 }
2933 }
2934
2935 static void opt_top_field_first(const char *arg)
2936 {
2937 top_field_first= atoi(arg);
2938 }
2939
2940 static int opt_thread_count(const char *opt, const char *arg)
2941 {
2942 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2943 #if !HAVE_THREADS
2944 if (verbose >= 0)
2945 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2946 #endif
2947 return 0;
2948 }
2949
2950 static void opt_audio_sample_fmt(const char *arg)
2951 {
2952 if (strcmp(arg, "list"))
2953 audio_sample_fmt = avcodec_get_sample_fmt(arg);
2954 else {
2955 list_fmts(avcodec_sample_fmt_string, SAMPLE_FMT_NB);
2956 ffmpeg_exit(0);
2957 }
2958 }
2959
2960 static int opt_audio_rate(const char *opt, const char *arg)
2961 {
2962 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2963 return 0;
2964 }
2965
2966 static int opt_audio_channels(const char *opt, const char *arg)
2967 {
2968 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2969 return 0;
2970 }
2971
2972 static void opt_video_channel(const char *arg)
2973 {
2974 video_channel = strtol(arg, NULL, 0);
2975 }
2976
2977 static void opt_video_standard(const char *arg)
2978 {
2979 video_standard = av_strdup(arg);
2980 }
2981
2982 static void opt_codec(int *pstream_copy, char **pcodec_name,
2983 int codec_type, const char *arg)
2984 {
2985 av_freep(pcodec_name);
2986 if (!strcmp(arg, "copy")) {
2987 *pstream_copy = 1;
2988 } else {
2989 *pcodec_name = av_strdup(arg);
2990 }
2991 }
2992
2993 static void opt_audio_codec(const char *arg)
2994 {
2995 opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2996 }
2997
2998 static void opt_audio_tag(const char *arg)
2999 {
3000 char *tail;
3001 audio_codec_tag= strtol(arg, &tail, 0);
3002
3003 if(!tail || *tail)
3004 audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
3005 }
3006
3007 static void opt_video_tag(const char *arg)
3008 {
3009 char *tail;
3010 video_codec_tag= strtol(arg, &tail, 0);
3011
3012 if(!tail || *tail)
3013 video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
3014 }
3015
3016 static void opt_video_codec(const char *arg)
3017 {
3018 opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
3019 }
3020
3021 static void opt_subtitle_codec(const char *arg)
3022 {
3023 opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
3024 }
3025
3026 static void opt_subtitle_tag(const char *arg)
3027 {
3028 char *tail;
3029 subtitle_codec_tag= strtol(arg, &tail, 0);
3030
3031 if(!tail || *tail)
3032 subtitle_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
3033 }
3034
3035 static void opt_map(const char *arg)
3036 {
3037 AVStreamMap *m;
3038 char *p;
3039
3040 stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
3041 m = &stream_maps[nb_stream_maps-1];
3042
3043 m->file_index = strtol(arg, &p, 0);
3044 if (*p)
3045 p++;
3046
3047 m->stream_index = strtol(p, &p, 0);
3048 if (*p) {
3049 p++;
3050 m->sync_file_index = strtol(p, &p, 0);
3051 if (*p)
3052 p++;
3053 m->sync_stream_index = strtol(p, &p, 0);
3054 } else {
3055 m->sync_file_index = m->file_index;
3056 m->sync_stream_index = m->stream_index;
3057 }
3058 }
3059
3060 static void opt_map_meta_data(const char *arg)
3061 {
3062 AVMetaDataMap *m;
3063 char *p;
3064
3065 m = &meta_data_maps[nb_meta_data_maps++];
3066
3067 m->out_file = strtol(arg, &p, 0);
3068 if (*p)
3069 p++;
3070
3071 m->in_file = strtol(p, &p, 0);
3072 }
3073
3074 static void opt_input_ts_scale(const char *arg)
3075 {
3076 unsigned int stream;
3077 double scale;
3078 char *p;
3079
3080 stream = strtol(arg, &p, 0);
3081 if (*p)
3082 p++;
3083 scale= strtod(p, &p);
3084
3085 if(stream >= MAX_STREAMS)
3086 ffmpeg_exit(1);
3087
3088 input_files_ts_scale[nb_input_files] = grow_array(input_files_ts_scale[nb_input_files], sizeof(*input_files_ts_scale[nb_input_files]), &nb_input_files_ts_scale[nb_input_files], stream + 1);
3089 input_files_ts_scale[nb_input_files][stream]= scale;
3090 }
3091
3092 static int opt_recording_time(const char *opt, const char *arg)
3093 {
3094 recording_time = parse_time_or_die(opt, arg, 1);
3095 return 0;
3096 }
3097
3098 static int opt_start_time(const char *opt, const char *arg)
3099 {
3100 start_time = parse_time_or_die(opt, arg, 1);
3101 return 0;
3102 }
3103
3104 static int opt_recording_timestamp(const char *opt, const char *arg)
3105 {
3106 recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3107 return 0;
3108 }
3109
3110 static int opt_input_ts_offset(const char *opt, const char *arg)
3111 {
3112 input_ts_offset = parse_time_or_die(opt, arg, 1);
3113 return 0;
3114 }
3115
3116 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3117 {
3118 const char *codec_string = encoder ? "encoder" : "decoder";
3119 AVCodec *codec;
3120
3121 if(!name)
3122 return CODEC_ID_NONE;
3123 codec = encoder ?
3124 avcodec_find_encoder_by_name(name) :
3125 avcodec_find_decoder_by_name(name);
3126 if(!codec) {
3127 fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3128 ffmpeg_exit(1);
3129 }
3130 if(codec->type != type) {
3131 fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3132 ffmpeg_exit(1);
3133 }
3134 if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3135 strict > FF_COMPLIANCE_EXPERIMENTAL) {
3136 fprintf(stderr, "%s '%s' is experimental and might produce bad "
3137 "results.\nAdd '-strict experimental' if you want to use it.\n",
3138 codec_string, codec->name);
3139 codec = encoder ?
3140 avcodec_find_encoder(codec->id) :
3141 avcodec_find_decoder(codec->id);
3142 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3143 fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3144 codec_string, codec->name);
3145 ffmpeg_exit(1);
3146 }
3147 return codec->id;
3148 }
3149
3150 static void opt_input_file(const char *filename)
3151 {
3152 AVFormatContext *ic;
3153 AVFormatParameters params, *ap = &params;
3154 AVInputFormat *file_iformat = NULL;
3155 int err, i, ret, rfps, rfps_base;
3156 int64_t timestamp;
3157
3158 if (last_asked_format) {
3159 if (!(file_iformat = av_find_input_format(last_asked_format))) {
3160 fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3161 ffmpeg_exit(1);
3162 }
3163 last_asked_format = NULL;
3164 }
3165
3166 if (!strcmp(filename, "-"))
3167 filename = "pipe:";
3168
3169 using_stdin |= !strncmp(filename, "pipe:", 5) ||
3170 !strcmp(filename, "/dev/stdin");
3171
3172 /* get default parameters from command line */
3173 ic = avformat_alloc_context();
3174 if (!ic) {
3175 print_error(filename, AVERROR(ENOMEM));
3176 ffmpeg_exit(1);
3177 }
3178
3179 memset(ap, 0, sizeof(*ap));
3180 ap->prealloced_context = 1;
3181 ap->sample_rate = audio_sample_rate;
3182 ap->channels = audio_channels;
3183 ap->time_base.den = frame_rate.num;
3184 ap->time_base.num = frame_rate.den;
3185 ap->width = frame_width;