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18af625ce5b798aabc6ad6b0f66c8ea5e994cd77
[libav.git] / avconv.c
1 /*
2 * avconv main
3 * Copyright (c) 2000-2011 The libav developers.
4 *
5 * This file is part of Libav.
6 *
7 * Libav 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 * Libav 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 Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include "config.h"
23 #include <ctype.h>
24 #include <string.h>
25 #include <math.h>
26 #include <stdlib.h>
27 #include <errno.h>
28 #include <signal.h>
29 #include <limits.h>
30 #include <unistd.h>
31 #include "libavformat/avformat.h"
32 #include "libavdevice/avdevice.h"
33 #include "libswscale/swscale.h"
34 #include "libavutil/opt.h"
35 #include "libavcodec/audioconvert.h"
36 #include "libavutil/audioconvert.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavformat/os_support.h"
48
49 #if CONFIG_AVFILTER
50 # include "libavfilter/avfilter.h"
51 # include "libavfilter/avfiltergraph.h"
52 # include "libavfilter/vsrc_buffer.h"
53 #endif
54
55 #if HAVE_SYS_RESOURCE_H
56 #include <sys/types.h>
57 #include <sys/time.h>
58 #include <sys/resource.h>
59 #elif HAVE_GETPROCESSTIMES
60 #include <windows.h>
61 #endif
62 #if HAVE_GETPROCESSMEMORYINFO
63 #include <windows.h>
64 #include <psapi.h>
65 #endif
66
67 #if HAVE_SYS_SELECT_H
68 #include <sys/select.h>
69 #endif
70
71 #include <time.h>
72
73 #include "cmdutils.h"
74
75 #include "libavutil/avassert.h"
76
77 const char program_name[] = "avconv";
78 const int program_birth_year = 2000;
79
80 /* select an input stream for an output stream */
81 typedef struct StreamMap {
82 int disabled; /** 1 is this mapping is disabled by a negative map */
83 int file_index;
84 int stream_index;
85 int sync_file_index;
86 int sync_stream_index;
87 } StreamMap;
88
89 /**
90 * select an input file for an output file
91 */
92 typedef struct MetadataMap {
93 int file; //< file index
94 char type; //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
95 int index; //< stream/chapter/program number
96 } MetadataMap;
97
98 static const OptionDef options[];
99
100 static const char *last_asked_format = NULL;
101 static AVDictionary *ts_scale;
102
103 static StreamMap *stream_maps = NULL;
104 static int nb_stream_maps;
105
106 static AVDictionary *codec_names;
107
108 /* first item specifies output metadata, second is input */
109 static MetadataMap (*meta_data_maps)[2] = NULL;
110 static int nb_meta_data_maps;
111 static int metadata_global_autocopy = 1;
112 static int metadata_streams_autocopy = 1;
113 static int metadata_chapters_autocopy = 1;
114
115 static int chapters_input_file = INT_MAX;
116
117 /* indexed by output file stream index */
118 static int *streamid_map = NULL;
119 static int nb_streamid_map = 0;
120
121 static int frame_width = 0;
122 static int frame_height = 0;
123 static float frame_aspect_ratio = 0;
124 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
125 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
126 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
127 static AVRational frame_rate;
128 static float video_qscale = 0;
129 static uint16_t *intra_matrix = NULL;
130 static uint16_t *inter_matrix = NULL;
131 static const char *video_rc_override_string=NULL;
132 static int video_disable = 0;
133 static int video_discard = 0;
134 static unsigned int video_codec_tag = 0;
135 static char *video_language = NULL;
136 static int same_quant = 0;
137 static int do_deinterlace = 0;
138 static int top_field_first = -1;
139 static int me_threshold = 0;
140 static int intra_dc_precision = 8;
141 static int qp_hist = 0;
142 #if CONFIG_AVFILTER
143 static char *vfilters = NULL;
144 #endif
145
146 static int intra_only = 0;
147 static int audio_sample_rate = 0;
148 #define QSCALE_NONE -99999
149 static float audio_qscale = QSCALE_NONE;
150 static int audio_disable = 0;
151 static int audio_channels = 0;
152 static unsigned int audio_codec_tag = 0;
153 static char *audio_language = NULL;
154
155 static int subtitle_disable = 0;
156 static char *subtitle_language = NULL;
157 static unsigned int subtitle_codec_tag = 0;
158
159 static int data_disable = 0;
160 static unsigned int data_codec_tag = 0;
161
162 static float mux_preload= 0.5;
163 static float mux_max_delay= 0.7;
164
165 static int64_t recording_time = INT64_MAX;
166 static int64_t start_time = 0;
167 static int64_t input_ts_offset = 0;
168 static int file_overwrite = 0;
169 static AVDictionary *metadata;
170 static int do_benchmark = 0;
171 static int do_hex_dump = 0;
172 static int do_pkt_dump = 0;
173 static int do_psnr = 0;
174 static int do_pass = 0;
175 static char *pass_logfilename_prefix = NULL;
176 static int video_sync_method= -1;
177 static int audio_sync_method= 0;
178 static float audio_drift_threshold= 0.1;
179 static int copy_ts= 0;
180 static int copy_tb;
181 static int opt_shortest = 0;
182 static char *vstats_filename;
183 static FILE *vstats_file;
184 static int opt_programid = 0;
185 static int copy_initial_nonkeyframes = 0;
186
187 static int rate_emu = 0;
188
189 static int audio_volume = 256;
190
191 static int exit_on_error = 0;
192 static int using_stdin = 0;
193 static int verbose = 1;
194 static int thread_count= 1;
195 static int64_t video_size = 0;
196 static int64_t audio_size = 0;
197 static int64_t extra_size = 0;
198 static int nb_frames_dup = 0;
199 static int nb_frames_drop = 0;
200 static int input_sync;
201 static uint64_t limit_filesize = 0;
202 static int force_fps = 0;
203 static char *forced_key_frames = NULL;
204
205 static float dts_delta_threshold = 10;
206
207 static int64_t timer_start;
208
209 static uint8_t *audio_buf;
210 static uint8_t *audio_out;
211 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
212
213 static short *samples;
214
215 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
216 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
217 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
218
219 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
220
221 struct InputStream;
222
223 typedef struct OutputStream {
224 int file_index; /* file index */
225 int index; /* stream index in the output file */
226 int source_index; /* InputStream index */
227 AVStream *st; /* stream in the output file */
228 int encoding_needed; /* true if encoding needed for this stream */
229 int frame_number;
230 /* input pts and corresponding output pts
231 for A/V sync */
232 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
233 struct InputStream *sync_ist; /* input stream to sync against */
234 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
235 AVBitStreamFilterContext *bitstream_filters;
236 AVCodec *enc;
237
238 /* video only */
239 int video_resample;
240 AVFrame pict_tmp; /* temporary image for resampling */
241 struct SwsContext *img_resample_ctx; /* for image resampling */
242 int resample_height;
243 int resample_width;
244 int resample_pix_fmt;
245 AVRational frame_rate;
246
247 float frame_aspect_ratio;
248
249 /* forced key frames */
250 int64_t *forced_kf_pts;
251 int forced_kf_count;
252 int forced_kf_index;
253
254 /* audio only */
255 int audio_resample;
256 ReSampleContext *resample; /* for audio resampling */
257 int resample_sample_fmt;
258 int resample_channels;
259 int resample_sample_rate;
260 int reformat_pair;
261 AVAudioConvert *reformat_ctx;
262 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
263 FILE *logfile;
264
265 #if CONFIG_AVFILTER
266 AVFilterContext *output_video_filter;
267 AVFilterContext *input_video_filter;
268 AVFilterBufferRef *picref;
269 char *avfilter;
270 AVFilterGraph *graph;
271 #endif
272
273 int sws_flags;
274 AVDictionary *opts;
275 } OutputStream;
276
277 typedef struct InputStream {
278 int file_index;
279 AVStream *st;
280 int discard; /* true if stream data should be discarded */
281 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
282 AVCodec *dec;
283
284 int64_t start; /* time when read started */
285 int64_t next_pts; /* synthetic pts for cases where pkt.pts
286 is not defined */
287 int64_t pts; /* current pts */
288 PtsCorrectionContext pts_ctx;
289 double ts_scale;
290 int is_start; /* is 1 at the start and after a discontinuity */
291 int showed_multi_packet_warning;
292 int is_past_recording_time;
293 AVDictionary *opts;
294 } InputStream;
295
296 typedef struct InputFile {
297 AVFormatContext *ctx;
298 int eof_reached; /* true if eof reached */
299 int ist_index; /* index of first stream in ist_table */
300 int buffer_size; /* current total buffer size */
301 int64_t ts_offset;
302 } InputFile;
303
304 typedef struct OutputFile {
305 AVFormatContext *ctx;
306 AVDictionary *opts;
307 int ost_index; /* index of the first stream in output_streams */
308 } OutputFile;
309
310 static InputStream *input_streams = NULL;
311 static int nb_input_streams = 0;
312 static InputFile *input_files = NULL;
313 static int nb_input_files = 0;
314
315 static OutputStream *output_streams = NULL;
316 static int nb_output_streams = 0;
317 static OutputFile *output_files = NULL;
318 static int nb_output_files = 0;
319
320 #if CONFIG_AVFILTER
321
322 static int configure_video_filters(InputStream *ist, OutputStream *ost)
323 {
324 AVFilterContext *last_filter, *filter;
325 /** filter graph containing all filters including input & output */
326 AVCodecContext *codec = ost->st->codec;
327 AVCodecContext *icodec = ist->st->codec;
328 FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
329 AVRational sample_aspect_ratio;
330 char args[255];
331 int ret;
332
333 ost->graph = avfilter_graph_alloc();
334
335 if (ist->st->sample_aspect_ratio.num){
336 sample_aspect_ratio = ist->st->sample_aspect_ratio;
337 }else
338 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
339
340 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
341 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
342 sample_aspect_ratio.num, sample_aspect_ratio.den);
343
344 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
345 "src", args, NULL, ost->graph);
346 if (ret < 0)
347 return ret;
348 ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
349 "out", NULL, &ffsink_ctx, ost->graph);
350 if (ret < 0)
351 return ret;
352 last_filter = ost->input_video_filter;
353
354 if (codec->width != icodec->width || codec->height != icodec->height) {
355 snprintf(args, 255, "%d:%d:flags=0x%X",
356 codec->width,
357 codec->height,
358 ost->sws_flags);
359 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
360 NULL, args, NULL, ost->graph)) < 0)
361 return ret;
362 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
363 return ret;
364 last_filter = filter;
365 }
366
367 snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
368 ost->graph->scale_sws_opts = av_strdup(args);
369
370 if (ost->avfilter) {
371 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
372 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
373
374 outputs->name = av_strdup("in");
375 outputs->filter_ctx = last_filter;
376 outputs->pad_idx = 0;
377 outputs->next = NULL;
378
379 inputs->name = av_strdup("out");
380 inputs->filter_ctx = ost->output_video_filter;
381 inputs->pad_idx = 0;
382 inputs->next = NULL;
383
384 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
385 return ret;
386 av_freep(&ost->avfilter);
387 } else {
388 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
389 return ret;
390 }
391
392 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
393 return ret;
394
395 codec->width = ost->output_video_filter->inputs[0]->w;
396 codec->height = ost->output_video_filter->inputs[0]->h;
397 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
398 ost->frame_aspect_ratio ? // overriden by the -aspect cli option
399 av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
400 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
401
402 return 0;
403 }
404 #endif /* CONFIG_AVFILTER */
405
406 static void term_exit(void)
407 {
408 av_log(NULL, AV_LOG_QUIET, "");
409 }
410
411 static volatile int received_sigterm = 0;
412 static volatile int received_nb_signals = 0;
413
414 static void
415 sigterm_handler(int sig)
416 {
417 received_sigterm = sig;
418 received_nb_signals++;
419 term_exit();
420 }
421
422 static void term_init(void)
423 {
424 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
425 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
426 #ifdef SIGXCPU
427 signal(SIGXCPU, sigterm_handler);
428 #endif
429 }
430
431 static int decode_interrupt_cb(void)
432 {
433 return received_nb_signals > 1;
434 }
435
436 static int exit_program(int ret)
437 {
438 int i;
439
440 /* close files */
441 for(i=0;i<nb_output_files;i++) {
442 AVFormatContext *s = output_files[i].ctx;
443 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
444 avio_close(s->pb);
445 avformat_free_context(s);
446 av_dict_free(&output_files[i].opts);
447 }
448 for(i=0;i<nb_input_files;i++) {
449 av_close_input_file(input_files[i].ctx);
450 }
451 for (i = 0; i < nb_input_streams; i++)
452 av_dict_free(&input_streams[i].opts);
453
454 av_free(intra_matrix);
455 av_free(inter_matrix);
456
457 if (vstats_file)
458 fclose(vstats_file);
459 av_free(vstats_filename);
460
461 av_free(streamid_map);
462 av_free(meta_data_maps);
463
464 av_freep(&input_streams);
465 av_freep(&input_files);
466 av_freep(&output_streams);
467 av_freep(&output_files);
468
469 uninit_opts();
470 av_free(audio_buf);
471 av_free(audio_out);
472 allocated_audio_buf_size= allocated_audio_out_size= 0;
473 av_free(samples);
474
475 #if CONFIG_AVFILTER
476 avfilter_uninit();
477 #endif
478
479 if (received_sigterm) {
480 fprintf(stderr,
481 "Received signal %d: terminating.\n",
482 (int) received_sigterm);
483 exit (255);
484 }
485
486 exit(ret); /* not all OS-es handle main() return value */
487 return ret;
488 }
489
490 static void assert_avoptions(AVDictionary *m)
491 {
492 AVDictionaryEntry *t;
493 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
494 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
495 exit_program(1);
496 }
497 }
498
499 static void assert_codec_experimental(AVCodecContext *c, int encoder)
500 {
501 const char *codec_string = encoder ? "encoder" : "decoder";
502 AVCodec *codec;
503 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
504 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
505 av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
506 "results.\nAdd '-strict experimental' if you want to use it.\n",
507 codec_string, c->codec->name);
508 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
509 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
510 av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
511 codec_string, codec->name);
512 exit_program(1);
513 }
514 }
515
516 /* similar to ff_dynarray_add() and av_fast_realloc() */
517 static void *grow_array(void *array, int elem_size, int *size, int new_size)
518 {
519 if (new_size >= INT_MAX / elem_size) {
520 fprintf(stderr, "Array too big.\n");
521 exit_program(1);
522 }
523 if (*size < new_size) {
524 uint8_t *tmp = av_realloc(array, new_size*elem_size);
525 if (!tmp) {
526 fprintf(stderr, "Could not alloc buffer.\n");
527 exit_program(1);
528 }
529 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
530 *size = new_size;
531 return tmp;
532 }
533 return array;
534 }
535
536 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
537 {
538 if(codec && codec->sample_fmts){
539 const enum AVSampleFormat *p= codec->sample_fmts;
540 for(; *p!=-1; p++){
541 if(*p == st->codec->sample_fmt)
542 break;
543 }
544 if (*p == -1) {
545 av_log(NULL, AV_LOG_WARNING,
546 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
547 av_get_sample_fmt_name(st->codec->sample_fmt),
548 codec->name,
549 av_get_sample_fmt_name(codec->sample_fmts[0]));
550 st->codec->sample_fmt = codec->sample_fmts[0];
551 }
552 }
553 }
554
555 /**
556 * Update the requested input sample format based on the output sample format.
557 * This is currently only used to request float output from decoders which
558 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
559 * Ideally this will be removed in the future when decoders do not do format
560 * conversion and only output in their native format.
561 */
562 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
563 AVCodecContext *enc)
564 {
565 /* if sample formats match or a decoder sample format has already been
566 requested, just return */
567 if (enc->sample_fmt == dec->sample_fmt ||
568 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
569 return;
570
571 /* if decoder supports more than one output format */
572 if (dec_codec && dec_codec->sample_fmts &&
573 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
574 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
575 const enum AVSampleFormat *p;
576 int min_dec = -1, min_inc = -1;
577
578 /* find a matching sample format in the encoder */
579 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
580 if (*p == enc->sample_fmt) {
581 dec->request_sample_fmt = *p;
582 return;
583 } else if (*p > enc->sample_fmt) {
584 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
585 } else
586 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
587 }
588
589 /* if none match, provide the one that matches quality closest */
590 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
591 enc->sample_fmt - min_dec;
592 }
593 }
594
595 static void choose_sample_rate(AVStream *st, AVCodec *codec)
596 {
597 if(codec && codec->supported_samplerates){
598 const int *p= codec->supported_samplerates;
599 int best=0;
600 int best_dist=INT_MAX;
601 for(; *p; p++){
602 int dist= abs(st->codec->sample_rate - *p);
603 if(dist < best_dist){
604 best_dist= dist;
605 best= *p;
606 }
607 }
608 if(best_dist){
609 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
610 }
611 st->codec->sample_rate= best;
612 }
613 }
614
615 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
616 {
617 if(codec && codec->pix_fmts){
618 const enum PixelFormat *p= codec->pix_fmts;
619 if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
620 if(st->codec->codec_id==CODEC_ID_MJPEG){
621 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
622 }else if(st->codec->codec_id==CODEC_ID_LJPEG){
623 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE};
624 }
625 }
626 for(; *p!=-1; p++){
627 if(*p == st->codec->pix_fmt)
628 break;
629 }
630 if (*p == -1) {
631 if(st->codec->pix_fmt != PIX_FMT_NONE)
632 av_log(NULL, AV_LOG_WARNING,
633 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
634 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
635 codec->name,
636 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
637 st->codec->pix_fmt = codec->pix_fmts[0];
638 }
639 }
640 }
641
642 static double
643 get_sync_ipts(const OutputStream *ost)
644 {
645 const InputStream *ist = ost->sync_ist;
646 return (double)(ist->pts - start_time)/AV_TIME_BASE;
647 }
648
649 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
650 int ret;
651
652 while(bsfc){
653 AVPacket new_pkt= *pkt;
654 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
655 &new_pkt.data, &new_pkt.size,
656 pkt->data, pkt->size,
657 pkt->flags & AV_PKT_FLAG_KEY);
658 if(a>0){
659 av_free_packet(pkt);
660 new_pkt.destruct= av_destruct_packet;
661 } else if(a<0){
662 fprintf(stderr, "%s failed for stream %d, codec %s",
663 bsfc->filter->name, pkt->stream_index,
664 avctx->codec ? avctx->codec->name : "copy");
665 print_error("", a);
666 if (exit_on_error)
667 exit_program(1);
668 }
669 *pkt= new_pkt;
670
671 bsfc= bsfc->next;
672 }
673
674 ret= av_interleaved_write_frame(s, pkt);
675 if(ret < 0){
676 print_error("av_interleaved_write_frame()", ret);
677 exit_program(1);
678 }
679 }
680
681 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
682
683 static void do_audio_out(AVFormatContext *s,
684 OutputStream *ost,
685 InputStream *ist,
686 unsigned char *buf, int size)
687 {
688 uint8_t *buftmp;
689 int64_t audio_out_size, audio_buf_size;
690 int64_t allocated_for_size= size;
691
692 int size_out, frame_bytes, ret, resample_changed;
693 AVCodecContext *enc= ost->st->codec;
694 AVCodecContext *dec= ist->st->codec;
695 int osize = av_get_bytes_per_sample(enc->sample_fmt);
696 int isize = av_get_bytes_per_sample(dec->sample_fmt);
697 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
698
699 need_realloc:
700 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
701 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
702 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
703 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
704 audio_buf_size*= osize*enc->channels;
705
706 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
707 if(coded_bps > 8*osize)
708 audio_out_size= audio_out_size * coded_bps / (8*osize);
709 audio_out_size += FF_MIN_BUFFER_SIZE;
710
711 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
712 fprintf(stderr, "Buffer sizes too large\n");
713 exit_program(1);
714 }
715
716 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
717 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
718 if (!audio_buf || !audio_out){
719 fprintf(stderr, "Out of memory in do_audio_out\n");
720 exit_program(1);
721 }
722
723 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
724 ost->audio_resample = 1;
725
726 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
727 ost->resample_channels != dec->channels ||
728 ost->resample_sample_rate != dec->sample_rate;
729
730 if ((ost->audio_resample && !ost->resample) || resample_changed) {
731 if (resample_changed) {
732 av_log(NULL, AV_LOG_INFO, "Input stream #%d.%d frame changed from rate:%d fmt:%s ch:%d to rate:%d fmt:%s ch:%d\n",
733 ist->file_index, ist->st->index,
734 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
735 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
736 ost->resample_sample_fmt = dec->sample_fmt;
737 ost->resample_channels = dec->channels;
738 ost->resample_sample_rate = dec->sample_rate;
739 if (ost->resample)
740 audio_resample_close(ost->resample);
741 }
742 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
743 if (audio_sync_method <= 1 &&
744 ost->resample_sample_fmt == enc->sample_fmt &&
745 ost->resample_channels == enc->channels &&
746 ost->resample_sample_rate == enc->sample_rate) {
747 ost->resample = NULL;
748 ost->audio_resample = 0;
749 } else if (ost->audio_resample) {
750 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
751 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
752 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
753 enc->sample_rate, dec->sample_rate,
754 enc->sample_fmt, dec->sample_fmt,
755 16, 10, 0, 0.8);
756 if (!ost->resample) {
757 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
758 dec->channels, dec->sample_rate,
759 enc->channels, enc->sample_rate);
760 exit_program(1);
761 }
762 }
763 }
764
765 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
766 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
767 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
768 if (ost->reformat_ctx)
769 av_audio_convert_free(ost->reformat_ctx);
770 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
771 dec->sample_fmt, 1, NULL, 0);
772 if (!ost->reformat_ctx) {
773 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
774 av_get_sample_fmt_name(dec->sample_fmt),
775 av_get_sample_fmt_name(enc->sample_fmt));
776 exit_program(1);
777 }
778 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
779 }
780
781 if(audio_sync_method){
782 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
783 - av_fifo_size(ost->fifo)/(enc->channels * 2);
784 double idelta= delta*dec->sample_rate / enc->sample_rate;
785 int byte_delta= ((int)idelta)*2*dec->channels;
786
787 //FIXME resample delay
788 if(fabs(delta) > 50){
789 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
790 if(byte_delta < 0){
791 byte_delta= FFMAX(byte_delta, -size);
792 size += byte_delta;
793 buf -= byte_delta;
794 if(verbose > 2)
795 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
796 if(!size)
797 return;
798 ist->is_start=0;
799 }else{
800 static uint8_t *input_tmp= NULL;
801 input_tmp= av_realloc(input_tmp, byte_delta + size);
802
803 if(byte_delta > allocated_for_size - size){
804 allocated_for_size= byte_delta + (int64_t)size;
805 goto need_realloc;
806 }
807 ist->is_start=0;
808
809 memset(input_tmp, 0, byte_delta);
810 memcpy(input_tmp + byte_delta, buf, size);
811 buf= input_tmp;
812 size += byte_delta;
813 if(verbose > 2)
814 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
815 }
816 }else if(audio_sync_method>1){
817 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
818 av_assert0(ost->audio_resample);
819 if(verbose > 2)
820 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
821 // 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));
822 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
823 }
824 }
825 }else
826 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
827 - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
828
829 if (ost->audio_resample) {
830 buftmp = audio_buf;
831 size_out = audio_resample(ost->resample,
832 (short *)buftmp, (short *)buf,
833 size / (dec->channels * isize));
834 size_out = size_out * enc->channels * osize;
835 } else {
836 buftmp = buf;
837 size_out = size;
838 }
839
840 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
841 const void *ibuf[6]= {buftmp};
842 void *obuf[6]= {audio_buf};
843 int istride[6]= {isize};
844 int ostride[6]= {osize};
845 int len= size_out/istride[0];
846 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
847 printf("av_audio_convert() failed\n");
848 if (exit_on_error)
849 exit_program(1);
850 return;
851 }
852 buftmp = audio_buf;
853 size_out = len*osize;
854 }
855
856 /* now encode as many frames as possible */
857 if (enc->frame_size > 1) {
858 /* output resampled raw samples */
859 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
860 fprintf(stderr, "av_fifo_realloc2() failed\n");
861 exit_program(1);
862 }
863 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
864
865 frame_bytes = enc->frame_size * osize * enc->channels;
866
867 while (av_fifo_size(ost->fifo) >= frame_bytes) {
868 AVPacket pkt;
869 av_init_packet(&pkt);
870
871 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
872
873 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
874
875 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
876 (short *)audio_buf);
877 if (ret < 0) {
878 fprintf(stderr, "Audio encoding failed\n");
879 exit_program(1);
880 }
881 audio_size += ret;
882 pkt.stream_index= ost->index;
883 pkt.data= audio_out;
884 pkt.size= ret;
885 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
886 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
887 pkt.flags |= AV_PKT_FLAG_KEY;
888 write_frame(s, &pkt, enc, ost->bitstream_filters);
889
890 ost->sync_opts += enc->frame_size;
891 }
892 } else {
893 AVPacket pkt;
894 av_init_packet(&pkt);
895
896 ost->sync_opts += size_out / (osize * enc->channels);
897
898 /* output a pcm frame */
899 /* determine the size of the coded buffer */
900 size_out /= osize;
901 if (coded_bps)
902 size_out = size_out*coded_bps/8;
903
904 if(size_out > audio_out_size){
905 fprintf(stderr, "Internal error, buffer size too small\n");
906 exit_program(1);
907 }
908
909 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
910 ret = avcodec_encode_audio(enc, audio_out, size_out,
911 (short *)buftmp);
912 if (ret < 0) {
913 fprintf(stderr, "Audio encoding failed\n");
914 exit_program(1);
915 }
916 audio_size += ret;
917 pkt.stream_index= ost->index;
918 pkt.data= audio_out;
919 pkt.size= ret;
920 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
921 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
922 pkt.flags |= AV_PKT_FLAG_KEY;
923 write_frame(s, &pkt, enc, ost->bitstream_filters);
924 }
925 }
926
927 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
928 {
929 AVCodecContext *dec;
930 AVPicture *picture2;
931 AVPicture picture_tmp;
932 uint8_t *buf = 0;
933
934 dec = ist->st->codec;
935
936 /* deinterlace : must be done before any resize */
937 if (do_deinterlace) {
938 int size;
939
940 /* create temporary picture */
941 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
942 buf = av_malloc(size);
943 if (!buf)
944 return;
945
946 picture2 = &picture_tmp;
947 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
948
949 if(avpicture_deinterlace(picture2, picture,
950 dec->pix_fmt, dec->width, dec->height) < 0) {
951 /* if error, do not deinterlace */
952 fprintf(stderr, "Deinterlacing failed\n");
953 av_free(buf);
954 buf = NULL;
955 picture2 = picture;
956 }
957 } else {
958 picture2 = picture;
959 }
960
961 if (picture != picture2)
962 *picture = *picture2;
963 *bufp = buf;
964 }
965
966 /* we begin to correct av delay at this threshold */
967 #define AV_DELAY_MAX 0.100
968
969 static void do_subtitle_out(AVFormatContext *s,
970 OutputStream *ost,
971 InputStream *ist,
972 AVSubtitle *sub,
973 int64_t pts)
974 {
975 static uint8_t *subtitle_out = NULL;
976 int subtitle_out_max_size = 1024 * 1024;
977 int subtitle_out_size, nb, i;
978 AVCodecContext *enc;
979 AVPacket pkt;
980
981 if (pts == AV_NOPTS_VALUE) {
982 fprintf(stderr, "Subtitle packets must have a pts\n");
983 if (exit_on_error)
984 exit_program(1);
985 return;
986 }
987
988 enc = ost->st->codec;
989
990 if (!subtitle_out) {
991 subtitle_out = av_malloc(subtitle_out_max_size);
992 }
993
994 /* Note: DVB subtitle need one packet to draw them and one other
995 packet to clear them */
996 /* XXX: signal it in the codec context ? */
997 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
998 nb = 2;
999 else
1000 nb = 1;
1001
1002 for(i = 0; i < nb; i++) {
1003 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1004 // start_display_time is required to be 0
1005 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1006 sub->end_display_time -= sub->start_display_time;
1007 sub->start_display_time = 0;
1008 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1009 subtitle_out_max_size, sub);
1010 if (subtitle_out_size < 0) {
1011 fprintf(stderr, "Subtitle encoding failed\n");
1012 exit_program(1);
1013 }
1014
1015 av_init_packet(&pkt);
1016 pkt.stream_index = ost->index;
1017 pkt.data = subtitle_out;
1018 pkt.size = subtitle_out_size;
1019 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1020 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1021 /* XXX: the pts correction is handled here. Maybe handling
1022 it in the codec would be better */
1023 if (i == 0)
1024 pkt.pts += 90 * sub->start_display_time;
1025 else
1026 pkt.pts += 90 * sub->end_display_time;
1027 }
1028 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1029 }
1030 }
1031
1032 static int bit_buffer_size= 1024*256;
1033 static uint8_t *bit_buffer= NULL;
1034
1035 static void do_video_resample(OutputStream *ost,
1036 InputStream *ist,
1037 AVFrame *in_picture,
1038 AVFrame **out_picture)
1039 {
1040 int resample_changed = 0;
1041 AVCodecContext *dec = ist->st->codec;
1042 *out_picture = in_picture;
1043
1044 resample_changed = ost->resample_width != dec->width ||
1045 ost->resample_height != dec->height ||
1046 ost->resample_pix_fmt != dec->pix_fmt;
1047
1048 if (resample_changed) {
1049 av_log(NULL, AV_LOG_INFO,
1050 "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1051 ist->file_index, ist->st->index,
1052 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1053 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt));
1054 if(!ost->video_resample)
1055 ost->video_resample = 1;
1056 }
1057
1058 #if !CONFIG_AVFILTER
1059 if (ost->video_resample) {
1060 *out_picture = &ost->pict_tmp;
1061 if (resample_changed) {
1062 /* initialize a new scaler context */
1063 sws_freeContext(ost->img_resample_ctx);
1064 ost->img_resample_ctx = sws_getContext(
1065 ist->st->codec->width,
1066 ist->st->codec->height,
1067 ist->st->codec->pix_fmt,
1068 ost->st->codec->width,
1069 ost->st->codec->height,
1070 ost->st->codec->pix_fmt,
1071 ost->sws_flags, NULL, NULL, NULL);
1072 if (ost->img_resample_ctx == NULL) {
1073 fprintf(stderr, "Cannot get resampling context\n");
1074 exit_program(1);
1075 }
1076 }
1077 sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1078 0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1079 }
1080 #else
1081 if (resample_changed) {
1082 avfilter_graph_free(&ost->graph);
1083 if (configure_video_filters(ist, ost)) {
1084 fprintf(stderr, "Error reinitialising filters!\n");
1085 exit_program(1);
1086 }
1087 }
1088 #endif
1089 if (resample_changed) {
1090 ost->resample_width = dec->width;
1091 ost->resample_height = dec->height;
1092 ost->resample_pix_fmt = dec->pix_fmt;
1093 }
1094 }
1095
1096
1097 static void do_video_out(AVFormatContext *s,
1098 OutputStream *ost,
1099 InputStream *ist,
1100 AVFrame *in_picture,
1101 int *frame_size, float quality)
1102 {
1103 int nb_frames, i, ret, format_video_sync;
1104 AVFrame *final_picture;
1105 AVCodecContext *enc, *dec;
1106 double sync_ipts;
1107
1108 enc = ost->st->codec;
1109 dec = ist->st->codec;
1110
1111 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1112
1113 /* by default, we output a single frame */
1114 nb_frames = 1;
1115
1116 *frame_size = 0;
1117
1118 format_video_sync = video_sync_method;
1119 if (format_video_sync < 0)
1120 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1121
1122 if (format_video_sync) {
1123 double vdelta = sync_ipts - ost->sync_opts;
1124 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1125 if (vdelta < -1.1)
1126 nb_frames = 0;
1127 else if (format_video_sync == 2) {
1128 if(vdelta<=-0.6){
1129 nb_frames=0;
1130 }else if(vdelta>0.6)
1131 ost->sync_opts= lrintf(sync_ipts);
1132 }else if (vdelta > 1.1)
1133 nb_frames = lrintf(vdelta);
1134 //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);
1135 if (nb_frames == 0){
1136 ++nb_frames_drop;
1137 if (verbose>2)
1138 fprintf(stderr, "*** drop!\n");
1139 }else if (nb_frames > 1) {
1140 nb_frames_dup += nb_frames - 1;
1141 if (verbose>2)
1142 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1143 }
1144 }else
1145 ost->sync_opts= lrintf(sync_ipts);
1146
1147 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1148 if (nb_frames <= 0)
1149 return;
1150
1151 do_video_resample(ost, ist, in_picture, &final_picture);
1152
1153 /* duplicates frame if needed */
1154 for(i=0;i<nb_frames;i++) {
1155 AVPacket pkt;
1156 av_init_packet(&pkt);
1157 pkt.stream_index= ost->index;
1158
1159 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1160 /* raw pictures are written as AVPicture structure to
1161 avoid any copies. We support temorarily the older
1162 method. */
1163 AVFrame* old_frame = enc->coded_frame;
1164 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1165 pkt.data= (uint8_t *)final_picture;
1166 pkt.size= sizeof(AVPicture);
1167 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1168 pkt.flags |= AV_PKT_FLAG_KEY;
1169
1170 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1171 enc->coded_frame = old_frame;
1172 } else {
1173 AVFrame big_picture;
1174
1175 big_picture= *final_picture;
1176 /* better than nothing: use input picture interlaced
1177 settings */
1178 big_picture.interlaced_frame = in_picture->interlaced_frame;
1179 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1180 if(top_field_first == -1)
1181 big_picture.top_field_first = in_picture->top_field_first;
1182 else
1183 big_picture.top_field_first = top_field_first;
1184 }
1185
1186 /* handles same_quant here. This is not correct because it may
1187 not be a global option */
1188 big_picture.quality = quality;
1189 if(!me_threshold)
1190 big_picture.pict_type = 0;
1191 // big_picture.pts = AV_NOPTS_VALUE;
1192 big_picture.pts= ost->sync_opts;
1193 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1194 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1195 if (ost->forced_kf_index < ost->forced_kf_count &&
1196 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1197 big_picture.pict_type = AV_PICTURE_TYPE_I;
1198 ost->forced_kf_index++;
1199 }
1200 ret = avcodec_encode_video(enc,
1201 bit_buffer, bit_buffer_size,
1202 &big_picture);
1203 if (ret < 0) {
1204 fprintf(stderr, "Video encoding failed\n");
1205 exit_program(1);
1206 }
1207
1208 if(ret>0){
1209 pkt.data= bit_buffer;
1210 pkt.size= ret;
1211 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1212 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1213 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1214 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1215 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1216
1217 if(enc->coded_frame->key_frame)
1218 pkt.flags |= AV_PKT_FLAG_KEY;
1219 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1220 *frame_size = ret;
1221 video_size += ret;
1222 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1223 // enc->frame_number-1, ret, enc->pict_type);
1224 /* if two pass, output log */
1225 if (ost->logfile && enc->stats_out) {
1226 fprintf(ost->logfile, "%s", enc->stats_out);
1227 }
1228 }
1229 }
1230 ost->sync_opts++;
1231 ost->frame_number++;
1232 }
1233 }
1234
1235 static double psnr(double d){
1236 return -10.0*log(d)/log(10.0);
1237 }
1238
1239 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1240 int frame_size)
1241 {
1242 AVCodecContext *enc;
1243 int frame_number;
1244 double ti1, bitrate, avg_bitrate;
1245
1246 /* this is executed just the first time do_video_stats is called */
1247 if (!vstats_file) {
1248 vstats_file = fopen(vstats_filename, "w");
1249 if (!vstats_file) {
1250 perror("fopen");
1251 exit_program(1);
1252 }
1253 }
1254
1255 enc = ost->st->codec;
1256 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1257 frame_number = ost->frame_number;
1258 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1259 if (enc->flags&CODEC_FLAG_PSNR)
1260 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1261
1262 fprintf(vstats_file,"f_size= %6d ", frame_size);
1263 /* compute pts value */
1264 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1265 if (ti1 < 0.01)
1266 ti1 = 0.01;
1267
1268 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1269 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1270 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1271 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1272 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1273 }
1274 }
1275
1276 static void print_report(OutputFile *output_files,
1277 OutputStream *ost_table, int nb_ostreams,
1278 int is_last_report)
1279 {
1280 char buf[1024];
1281 OutputStream *ost;
1282 AVFormatContext *oc;
1283 int64_t total_size;
1284 AVCodecContext *enc;
1285 int frame_number, vid, i;
1286 double bitrate, ti1, pts;
1287 static int64_t last_time = -1;
1288 static int qp_histogram[52];
1289
1290 if (!is_last_report) {
1291 int64_t cur_time;
1292 /* display the report every 0.5 seconds */
1293 cur_time = av_gettime();
1294 if (last_time == -1) {
1295 last_time = cur_time;
1296 return;
1297 }
1298 if ((cur_time - last_time) < 500000)
1299 return;
1300 last_time = cur_time;
1301 }
1302
1303
1304 oc = output_files[0].ctx;
1305
1306 total_size = avio_size(oc->pb);
1307 if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1308 total_size= avio_tell(oc->pb);
1309
1310 buf[0] = '\0';
1311 ti1 = 1e10;
1312 vid = 0;
1313 for(i=0;i<nb_ostreams;i++) {
1314 float q = -1;
1315 ost = &ost_table[i];
1316 enc = ost->st->codec;
1317 if (!ost->st->stream_copy && enc->coded_frame)
1318 q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1319 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1320 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1321 }
1322 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1323 float t = (av_gettime()-timer_start) / 1000000.0;
1324
1325 frame_number = ost->frame_number;
1326 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1327 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1328 if(is_last_report)
1329 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1330 if(qp_hist){
1331 int j;
1332 int qp = lrintf(q);
1333 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1334 qp_histogram[qp]++;
1335 for(j=0; j<32; j++)
1336 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1337 }
1338 if (enc->flags&CODEC_FLAG_PSNR){
1339 int j;
1340 double error, error_sum=0;
1341 double scale, scale_sum=0;
1342 char type[3]= {'Y','U','V'};
1343 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1344 for(j=0; j<3; j++){
1345 if(is_last_report){
1346 error= enc->error[j];
1347 scale= enc->width*enc->height*255.0*255.0*frame_number;
1348 }else{
1349 error= enc->coded_frame->error[j];
1350 scale= enc->width*enc->height*255.0*255.0;
1351 }
1352 if(j) scale/=4;
1353 error_sum += error;
1354 scale_sum += scale;
1355 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1356 }
1357 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1358 }
1359 vid = 1;
1360 }
1361 /* compute min output value */
1362 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1363 if ((pts < ti1) && (pts > 0))
1364 ti1 = pts;
1365 }
1366 if (ti1 < 0.01)
1367 ti1 = 0.01;
1368
1369 if (verbose > 0 || is_last_report) {
1370 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1371
1372 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1373 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1374 (double)total_size / 1024, ti1, bitrate);
1375
1376 if (nb_frames_dup || nb_frames_drop)
1377 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1378 nb_frames_dup, nb_frames_drop);
1379
1380 if (verbose >= 0)
1381 fprintf(stderr, "%s \r", buf);
1382
1383 fflush(stderr);
1384 }
1385
1386 if (is_last_report && verbose >= 0){
1387 int64_t raw= audio_size + video_size + extra_size;
1388 fprintf(stderr, "\n");
1389 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1390 video_size/1024.0,
1391 audio_size/1024.0,
1392 extra_size/1024.0,
1393 100.0*(total_size - raw)/raw
1394 );
1395 }
1396 }
1397
1398 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1399 {
1400 int fill_char = 0x00;
1401 if (sample_fmt == AV_SAMPLE_FMT_U8)
1402 fill_char = 0x80;
1403 memset(buf, fill_char, size);
1404 }
1405
1406 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1407 static int output_packet(InputStream *ist, int ist_index,
1408 OutputStream *ost_table, int nb_ostreams,
1409 const AVPacket *pkt)
1410 {
1411 AVFormatContext *os;
1412 OutputStream *ost;
1413 int ret, i;
1414 int got_output;
1415 AVFrame picture;
1416 void *buffer_to_free = NULL;
1417 static unsigned int samples_size= 0;
1418 AVSubtitle subtitle, *subtitle_to_free;
1419 int64_t pkt_pts = AV_NOPTS_VALUE;
1420 #if CONFIG_AVFILTER
1421 int frame_available;
1422 #endif
1423 float quality;
1424
1425 AVPacket avpkt;
1426 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1427
1428 if(ist->next_pts == AV_NOPTS_VALUE)
1429 ist->next_pts= ist->pts;
1430
1431 if (pkt == NULL) {
1432 /* EOF handling */
1433 av_init_packet(&avpkt);
1434 avpkt.data = NULL;
1435 avpkt.size = 0;
1436 goto handle_eof;
1437 } else {
1438 avpkt = *pkt;
1439 }
1440
1441 if(pkt->dts != AV_NOPTS_VALUE)
1442 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1443 if(pkt->pts != AV_NOPTS_VALUE)
1444 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1445
1446 //while we have more to decode or while the decoder did output something on EOF
1447 while (avpkt.size > 0 || (!pkt && got_output)) {
1448 uint8_t *data_buf, *decoded_data_buf;
1449 int data_size, decoded_data_size;
1450 handle_eof:
1451 ist->pts= ist->next_pts;
1452
1453 if(avpkt.size && avpkt.size != pkt->size &&
1454 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1455 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1456 ist->showed_multi_packet_warning=1;
1457 }
1458
1459 /* decode the packet if needed */
1460 decoded_data_buf = NULL; /* fail safe */
1461 decoded_data_size= 0;
1462 data_buf = avpkt.data;
1463 data_size = avpkt.size;
1464 subtitle_to_free = NULL;
1465 if (ist->decoding_needed) {
1466 switch(ist->st->codec->codec_type) {
1467 case AVMEDIA_TYPE_AUDIO:{
1468 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1469 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1470 av_free(samples);
1471 samples= av_malloc(samples_size);
1472 }
1473 decoded_data_size= samples_size;
1474 /* XXX: could avoid copy if PCM 16 bits with same
1475 endianness as CPU */
1476 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1477 &avpkt);
1478 if (ret < 0)
1479 return ret;
1480 avpkt.data += ret;
1481 avpkt.size -= ret;
1482 data_size = ret;
1483 got_output = decoded_data_size > 0;
1484 /* Some bug in mpeg audio decoder gives */
1485 /* decoded_data_size < 0, it seems they are overflows */
1486 if (!got_output) {
1487 /* no audio frame */
1488 continue;
1489 }
1490 decoded_data_buf = (uint8_t *)samples;
1491 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1492 (ist->st->codec->sample_rate * ist->st->codec->channels);
1493 break;}
1494 case AVMEDIA_TYPE_VIDEO:
1495 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1496 /* XXX: allocate picture correctly */
1497 avcodec_get_frame_defaults(&picture);
1498 avpkt.pts = pkt_pts;
1499 avpkt.dts = ist->pts;
1500 pkt_pts = AV_NOPTS_VALUE;
1501
1502 ret = avcodec_decode_video2(ist->st->codec,
1503 &picture, &got_output, &avpkt);
1504 quality = same_quant ? picture.quality : 0;
1505 if (ret < 0)
1506 return ret;
1507 if (!got_output) {
1508 /* no picture yet */
1509 goto discard_packet;
1510 }
1511 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1512 if (ist->st->codec->time_base.num != 0) {
1513 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1514 ist->next_pts += ((int64_t)AV_TIME_BASE *
1515 ist->st->codec->time_base.num * ticks) /
1516 ist->st->codec->time_base.den;
1517 }
1518 avpkt.size = 0;
1519 buffer_to_free = NULL;
1520 pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1521 break;
1522 case AVMEDIA_TYPE_SUBTITLE:
1523 ret = avcodec_decode_subtitle2(ist->st->codec,
1524 &subtitle, &got_output, &avpkt);
1525 if (ret < 0)
1526 return ret;
1527 if (!got_output) {
1528 goto discard_packet;
1529 }
1530 subtitle_to_free = &subtitle;
1531 avpkt.size = 0;
1532 break;
1533 default:
1534 return -1;
1535 }
1536 } else {
1537 switch(ist->st->codec->codec_type) {
1538 case AVMEDIA_TYPE_AUDIO:
1539 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1540 ist->st->codec->sample_rate;
1541 break;
1542 case AVMEDIA_TYPE_VIDEO:
1543 if (ist->st->codec->time_base.num != 0) {
1544 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1545 ist->next_pts += ((int64_t)AV_TIME_BASE *
1546 ist->st->codec->time_base.num * ticks) /
1547 ist->st->codec->time_base.den;
1548 }
1549 break;
1550 }
1551 ret = avpkt.size;
1552 avpkt.size = 0;
1553 }
1554
1555 #if CONFIG_AVFILTER
1556 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1557 for (i = 0; i < nb_ostreams; i++) {
1558 ost = &ost_table[i];
1559 if (ost->input_video_filter && ost->source_index == ist_index) {
1560 AVRational sar;
1561 if (ist->st->sample_aspect_ratio.num)
1562 sar = ist->st->sample_aspect_ratio;
1563 else
1564 sar = ist->st->codec->sample_aspect_ratio;
1565 // add it to be filtered
1566 av_vsrc_buffer_add_frame(ost->input_video_filter, &picture,
1567 ist->pts,
1568 sar);
1569 }
1570 }
1571 }
1572 #endif
1573
1574 // preprocess audio (volume)
1575 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1576 if (audio_volume != 256) {
1577 short *volp;
1578 volp = samples;
1579 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1580 int v = ((*volp) * audio_volume + 128) >> 8;
1581 if (v < -32768) v = -32768;
1582 if (v > 32767) v = 32767;
1583 *volp++ = v;
1584 }
1585 }
1586 }
1587
1588 /* frame rate emulation */
1589 if (rate_emu) {
1590 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1591 int64_t now = av_gettime() - ist->start;
1592 if (pts > now)
1593 usleep(pts - now);
1594 }
1595 /* if output time reached then transcode raw format,
1596 encode packets and output them */
1597 if (start_time == 0 || ist->pts >= start_time)
1598 for(i=0;i<nb_ostreams;i++) {
1599 int frame_size;
1600
1601 ost = &ost_table[i];
1602 if (ost->source_index != ist_index)
1603 continue;
1604
1605 #if CONFIG_AVFILTER
1606 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1607 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1608 while (frame_available) {
1609 AVRational ist_pts_tb;
1610 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1611 get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1612 if (ost->picref)
1613 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1614 #endif
1615 os = output_files[ost->file_index].ctx;
1616
1617 /* set the input output pts pairs */
1618 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1619
1620 if (ost->encoding_needed) {
1621 av_assert0(ist->decoding_needed);
1622 switch(ost->st->codec->codec_type) {
1623 case AVMEDIA_TYPE_AUDIO:
1624 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1625 break;
1626 case AVMEDIA_TYPE_VIDEO:
1627 #if CONFIG_AVFILTER
1628 if (ost->picref->video && !ost->frame_aspect_ratio)
1629 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1630 #endif
1631 do_video_out(os, ost, ist, &picture, &frame_size,
1632 same_quant ? quality : ost->st->codec->global_quality);
1633 if (vstats_filename && frame_size)
1634 do_video_stats(os, ost, frame_size);
1635 break;
1636 case AVMEDIA_TYPE_SUBTITLE:
1637 do_subtitle_out(os, ost, ist, &subtitle,
1638 pkt->pts);
1639 break;
1640 default:
1641 abort();
1642 }
1643 } else {
1644 AVFrame avframe; //FIXME/XXX remove this
1645 AVPacket opkt;
1646 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1647
1648 av_init_packet(&opkt);
1649
1650 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1651 #if !CONFIG_AVFILTER
1652 continue;
1653 #else
1654 goto cont;
1655 #endif
1656
1657 /* no reencoding needed : output the packet directly */
1658 /* force the input stream PTS */
1659
1660 avcodec_get_frame_defaults(&avframe);
1661 ost->st->codec->coded_frame= &avframe;
1662 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1663
1664 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1665 audio_size += data_size;
1666 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1667 video_size += data_size;
1668 ost->sync_opts++;
1669 }
1670
1671 opkt.stream_index= ost->index;
1672 if(pkt->pts != AV_NOPTS_VALUE)
1673 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1674 else
1675 opkt.pts= AV_NOPTS_VALUE;
1676
1677 if (pkt->dts == AV_NOPTS_VALUE)
1678 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1679 else
1680 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1681 opkt.dts -= ost_tb_start_time;
1682
1683 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1684 opkt.flags= pkt->flags;
1685
1686 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1687 if( ost->st->codec->codec_id != CODEC_ID_H264
1688 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1689 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1690 ) {
1691 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1692 opkt.destruct= av_destruct_packet;
1693 } else {
1694 opkt.data = data_buf;
1695 opkt.size = data_size;
1696 }
1697
1698 write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1699 ost->st->codec->frame_number++;
1700 ost->frame_number++;
1701 av_free_packet(&opkt);
1702 }
1703 #if CONFIG_AVFILTER
1704 cont:
1705 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1706 ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1707 if (ost->picref)
1708 avfilter_unref_buffer(ost->picref);
1709 }
1710 #endif
1711 }
1712
1713 av_free(buffer_to_free);
1714 /* XXX: allocate the subtitles in the codec ? */
1715 if (subtitle_to_free) {
1716 avsubtitle_free(subtitle_to_free);
1717 subtitle_to_free = NULL;
1718 }
1719 }
1720 discard_packet:
1721 if (pkt == NULL) {
1722 /* EOF handling */
1723
1724 for(i=0;i<nb_ostreams;i++) {
1725 ost = &ost_table[i];
1726 if (ost->source_index == ist_index) {
1727 AVCodecContext *enc= ost->st->codec;
1728 os = output_files[ost->file_index].ctx;
1729
1730 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1731 continue;
1732 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1733 continue;
1734
1735 if (ost->encoding_needed) {
1736 for(;;) {
1737 AVPacket pkt;
1738 int fifo_bytes;
1739 av_init_packet(&pkt);
1740 pkt.stream_index= ost->index;
1741
1742 switch(ost->st->codec->codec_type) {
1743 case AVMEDIA_TYPE_AUDIO:
1744 fifo_bytes = av_fifo_size(ost->fifo);
1745 ret = 0;
1746 /* encode any samples remaining in fifo */
1747 if (fifo_bytes > 0) {
1748 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1749 int fs_tmp = enc->frame_size;
1750
1751 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1752 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1753 enc->frame_size = fifo_bytes / (osize * enc->channels);
1754 } else { /* pad */
1755 int frame_bytes = enc->frame_size*osize*enc->channels;
1756 if (allocated_audio_buf_size < frame_bytes)
1757 exit_program(1);
1758 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1759 }
1760
1761 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1762 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1763 ost->st->time_base.num, enc->sample_rate);
1764 enc->frame_size = fs_tmp;
1765 }
1766 if(ret <= 0) {
1767 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1768 }
1769 if (ret < 0) {
1770 fprintf(stderr, "Audio encoding failed\n");
1771 exit_program(1);
1772 }
1773 audio_size += ret;
1774 pkt.flags |= AV_PKT_FLAG_KEY;
1775 break;
1776 case AVMEDIA_TYPE_VIDEO:
1777 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1778 if (ret < 0) {
1779 fprintf(stderr, "Video encoding failed\n");
1780 exit_program(1);
1781 }
1782 video_size += ret;
1783 if(enc->coded_frame && enc->coded_frame->key_frame)
1784 pkt.flags |= AV_PKT_FLAG_KEY;
1785 if (ost->logfile && enc->stats_out) {
1786 fprintf(ost->logfile, "%s", enc->stats_out);
1787 }
1788 break;
1789 default:
1790 ret=-1;
1791 }
1792
1793 if(ret<=0)
1794 break;
1795 pkt.data= bit_buffer;
1796 pkt.size= ret;
1797 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1798 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1799 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1800 }
1801 }
1802 }
1803 }
1804 }
1805
1806 return 0;
1807 }
1808
1809 static void print_sdp(OutputFile *output_files, int n)
1810 {
1811 char sdp[2048];
1812 int i;
1813 AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
1814
1815 if (!avc)
1816 exit_program(1);
1817 for (i = 0; i < n; i++)
1818 avc[i] = output_files[i].ctx;
1819
1820 av_sdp_create(avc, n, sdp, sizeof(sdp));
1821 printf("SDP:\n%s\n", sdp);
1822 fflush(stdout);
1823 av_freep(&avc);
1824 }
1825
1826 /*
1827 * The following code is the main loop of the file converter
1828 */
1829 static int transcode(OutputFile *output_files,
1830 int nb_output_files,
1831 InputFile *input_files,
1832 int nb_input_files)
1833 {
1834 int ret = 0, i, j;
1835 AVFormatContext *is, *os;
1836 AVCodecContext *codec, *icodec;
1837 OutputStream *ost;
1838 InputStream *ist;
1839 char error[1024];
1840 int want_sdp = 1;
1841 uint8_t *no_packet;
1842 int no_packet_count=0;
1843
1844 if (!(no_packet = av_mallocz(nb_input_files)))
1845 exit_program(1);
1846
1847 if (rate_emu)
1848 for (i = 0; i < nb_input_streams; i++)
1849 input_streams[i].start = av_gettime();
1850
1851 /* output stream init */
1852 for(i=0;i<nb_output_files;i++) {
1853 os = output_files[i].ctx;
1854 if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1855 av_dump_format(os, i, os->filename, 1);
1856 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1857 ret = AVERROR(EINVAL);
1858 goto fail;
1859 }
1860 }
1861
1862 /* for each output stream, we compute the right encoding parameters */
1863 for (i = 0; i < nb_output_streams; i++) {
1864 ost = &output_streams[i];
1865 os = output_files[ost->file_index].ctx;
1866 ist = &input_streams[ost->source_index];
1867
1868 codec = ost->st->codec;
1869 icodec = ist->st->codec;
1870
1871 ost->st->disposition = ist->st->disposition;
1872 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1873 codec->chroma_sample_location = icodec->chroma_sample_location;
1874
1875 if (ost->st->stream_copy) {
1876 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1877
1878 if (extra_size > INT_MAX)
1879 goto fail;
1880
1881 /* if stream_copy is selected, no need to decode or encode */
1882 codec->codec_id = icodec->codec_id;
1883 codec->codec_type = icodec->codec_type;
1884
1885 if(!codec->codec_tag){
1886 if( !os->oformat->codec_tag
1887 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1888 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1889 codec->codec_tag = icodec->codec_tag;
1890 }
1891
1892 codec->bit_rate = icodec->bit_rate;
1893 codec->rc_max_rate = icodec->rc_max_rate;
1894 codec->rc_buffer_size = icodec->rc_buffer_size;
1895 codec->extradata= av_mallocz(extra_size);
1896 if (!codec->extradata)
1897 goto fail;
1898 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1899 codec->extradata_size= icodec->extradata_size;
1900 if(!copy_tb && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500){
1901 codec->time_base = icodec->time_base;
1902 codec->time_base.num *= icodec->ticks_per_frame;
1903 av_reduce(&codec->time_base.num, &codec->time_base.den,
1904 codec->time_base.num, codec->time_base.den, INT_MAX);
1905 }else
1906 codec->time_base = ist->st->time_base;
1907 switch(codec->codec_type) {
1908 case AVMEDIA_TYPE_AUDIO:
1909 if(audio_volume != 256) {
1910 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1911 exit_program(1);
1912 }
1913 codec->channel_layout = icodec->channel_layout;
1914 codec->sample_rate = icodec->sample_rate;
1915 codec->channels = icodec->channels;
1916 codec->frame_size = icodec->frame_size;
1917 codec->audio_service_type = icodec->audio_service_type;
1918 codec->block_align= icodec->block_align;
1919 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1920 codec->block_align= 0;
1921 if(codec->codec_id == CODEC_ID_AC3)
1922 codec->block_align= 0;
1923 break;
1924 case AVMEDIA_TYPE_VIDEO:
1925 codec->pix_fmt = icodec->pix_fmt;
1926 codec->width = icodec->width;
1927 codec->height = icodec->height;
1928 codec->has_b_frames = icodec->has_b_frames;
1929 if (!codec->sample_aspect_ratio.num) {
1930 codec->sample_aspect_ratio =
1931 ost->st->sample_aspect_ratio =
1932 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
1933 ist->st->codec->sample_aspect_ratio.num ?
1934 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
1935 }
1936 break;
1937 case AVMEDIA_TYPE_SUBTITLE:
1938 codec->width = icodec->width;
1939 codec->height = icodec->height;
1940 break;
1941 case AVMEDIA_TYPE_DATA:
1942 break;
1943 default:
1944 abort();
1945 }
1946 } else {
1947 if (!ost->enc)
1948 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
1949 switch(codec->codec_type) {
1950 case AVMEDIA_TYPE_AUDIO:
1951 ost->fifo= av_fifo_alloc(1024);
1952 if(!ost->fifo)
1953 goto fail;
1954 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
1955 if (!codec->sample_rate) {
1956 codec->sample_rate = icodec->sample_rate;
1957 if (icodec->lowres)
1958 codec->sample_rate >>= icodec->lowres;
1959 }
1960 choose_sample_rate(ost->st, ost->enc);
1961 codec->time_base = (AVRational){1, codec->sample_rate};
1962 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
1963 codec->sample_fmt = icodec->sample_fmt;
1964 choose_sample_fmt(ost->st, ost->enc);
1965 if (!codec->channels)
1966 codec->channels = icodec->channels;
1967 codec->channel_layout = icodec->channel_layout;
1968 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
1969 codec->channel_layout = 0;
1970 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
1971 icodec->request_channels = codec->channels;
1972 ist->decoding_needed = 1;
1973 ost->encoding_needed = 1;
1974 ost->resample_sample_fmt = icodec->sample_fmt;
1975 ost->resample_sample_rate = icodec->sample_rate;
1976 ost->resample_channels = icodec->channels;
1977 break;
1978 case AVMEDIA_TYPE_VIDEO:
1979 if (codec->pix_fmt == PIX_FMT_NONE)
1980 codec->pix_fmt = icodec->pix_fmt;
1981 choose_pixel_fmt(ost->st, ost->enc);
1982
1983 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
1984 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
1985 exit_program(1);
1986 }
1987
1988 if (!codec->width || !codec->height) {
1989 codec->width = icodec->width;
1990 codec->height = icodec->height;
1991 }
1992
1993 ost->video_resample = codec->width != icodec->width ||
1994 codec->height != icodec->height ||
1995 codec->pix_fmt != icodec->pix_fmt;
1996 if (ost->video_resample) {
1997 #if !CONFIG_AVFILTER
1998 avcodec_get_frame_defaults(&ost->pict_tmp);
1999 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2000 codec->width, codec->height)) {
2001 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2002 exit_program(1);
2003 }
2004 ost->img_resample_ctx = sws_getContext(
2005 icodec->width,
2006 icodec->height,
2007 icodec->pix_fmt,
2008 codec->width,
2009 codec->height,
2010 codec->pix_fmt,
2011 ost->sws_flags, NULL, NULL, NULL);
2012 if (ost->img_resample_ctx == NULL) {
2013 fprintf(stderr, "Cannot get resampling context\n");
2014 exit_program(1);
2015 }
2016 #endif
2017 codec->bits_per_raw_sample= 0;
2018 }
2019
2020 ost->resample_height = icodec->height;
2021 ost->resample_width = icodec->width;
2022 ost->resample_pix_fmt= icodec->pix_fmt;
2023 ost->encoding_needed = 1;
2024 ist->decoding_needed = 1;
2025
2026 if (!ost->frame_rate.num)
2027 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2028 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2029 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2030 ost->frame_rate = ost->enc->supported_framerates[idx];
2031 }
2032 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2033
2034 #if CONFIG_AVFILTER
2035 if (configure_video_filters(ist, ost)) {
2036 fprintf(stderr, "Error opening filters!\n");
2037 exit(1);
2038 }
2039 #endif
2040 break;
2041 case AVMEDIA_TYPE_SUBTITLE:
2042 ost->encoding_needed = 1;
2043 ist->decoding_needed = 1;
2044 break;
2045 default:
2046 abort();
2047 break;
2048 }
2049 /* two pass mode */
2050 if (ost->encoding_needed &&
2051 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2052 char logfilename[1024];
2053 FILE *f;
2054
2055 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2056 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2057 i);
2058 if (codec->flags & CODEC_FLAG_PASS1) {
2059 f = fopen(logfilename, "wb");
2060 if (!f) {
2061 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2062 exit_program(1);
2063 }
2064 ost->logfile = f;
2065 } else {
2066 char *logbuffer;
2067 size_t logbuffer_size;
2068 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2069 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2070 exit_program(1);
2071 }
2072 codec->stats_in = logbuffer;
2073 }
2074 }
2075 }
2076 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2077 int size= codec->width * codec->height;
2078 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2079 }
2080 }
2081
2082 if (!bit_buffer)
2083 bit_buffer = av_malloc(bit_buffer_size);
2084 if (!bit_buffer) {
2085 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2086 bit_buffer_size);
2087 ret = AVERROR(ENOMEM);
2088 goto fail;
2089 }
2090
2091 /* open each encoder */
2092 for (i = 0; i < nb_output_streams; i++) {
2093 ost = &output_streams[i];
2094 if (ost->encoding_needed) {
2095 AVCodec *codec = ost->enc;
2096 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2097 if (!codec) {
2098 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2099 ost->st->codec->codec_id, ost->file_index, ost->index);
2100 ret = AVERROR(EINVAL);
2101 goto dump_format;
2102 }
2103 if (dec->subtitle_header) {
2104 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2105 if (!ost->st->codec->subtitle_header) {
2106 ret = AVERROR(ENOMEM);
2107 goto dump_format;
2108 }
2109 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2110 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2111 }
2112 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2113 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2114 ost->file_index, ost->index);
2115 ret = AVERROR(EINVAL);
2116 goto dump_format;
2117 }
2118 assert_codec_experimental(ost->st->codec, 1);
2119 assert_avoptions(ost->opts);
2120 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2121 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2122 "It takes bits/s as argument, not kbits/s\n");
2123 extra_size += ost->st->codec->extradata_size;
2124 }
2125 }
2126
2127 /* open each decoder */
2128 for (i = 0; i < nb_input_streams; i++) {
2129 ist = &input_streams[i];
2130 if (ist->decoding_needed) {
2131 AVCodec *codec = ist->dec;
2132 if (!codec)
2133 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2134 if (!codec) {
2135 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2136 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2137 ret = AVERROR(EINVAL);
2138 goto dump_format;
2139 }
2140
2141 /* update requested sample format for the decoder based on the
2142 corresponding encoder sample format */
2143 for (j = 0; j < nb_output_streams; j++) {
2144 ost = &output_streams[j];
2145 if (ost->source_index == i) {
2146 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2147 break;
2148 }
2149 }
2150
2151 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2152 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2153 ist->file_index, ist->st->index);
2154 ret = AVERROR(EINVAL);
2155 goto dump_format;
2156 }
2157 assert_codec_experimental(ist->st->codec, 0);
2158 assert_avoptions(ost->opts);
2159 }
2160 }
2161
2162 /* init pts */
2163 for (i = 0; i < nb_input_streams; i++) {
2164 AVStream *st;
2165 ist = &input_streams[i];
2166 st= ist->st;
2167 ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2168 ist->next_pts = AV_NOPTS_VALUE;
2169 init_pts_correction(&ist->pts_ctx);
2170 ist->is_start = 1;
2171 }
2172
2173 /* open files and write file headers */
2174 for (i = 0; i < nb_output_files; i++) {
2175 os = output_files[i].ctx;
2176 if (avformat_write_header(os, &output_files[i].opts) < 0) {
2177 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2178 ret = AVERROR(EINVAL);
2179 goto dump_format;
2180 }
2181 assert_avoptions(output_files[i].opts);
2182 if (strcmp(os->oformat->name, "rtp")) {
2183 want_sdp = 0;
2184 }
2185 }
2186
2187 dump_format:
2188 /* dump the file output parameters - cannot be done before in case
2189 of stream copy */
2190 for(i=0;i<nb_output_files;i++) {
2191 av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2192 }
2193
2194 /* dump the stream mapping */
2195 if (verbose >= 0) {
2196 fprintf(stderr, "Stream mapping:\n");
2197 for (i = 0; i < nb_output_streams;i ++) {
2198 ost = &output_streams[i];
2199 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2200 input_streams[ost->source_index].file_index,
2201 input_streams[ost->source_index].st->index,
2202 ost->file_index,
2203 ost->index);
2204 if (ost->sync_ist != &input_streams[ost->source_index])
2205 fprintf(stderr, " [sync #%d.%d]",
2206 ost->sync_ist->file_index,
2207 ost->sync_ist->st->index);
2208 if (ost->st->stream_copy)
2209 fprintf(stderr, " (copy)");
2210 fprintf(stderr, "\n");
2211 }
2212 }
2213
2214 if (ret) {
2215 fprintf(stderr, "%s\n", error);
2216 goto fail;
2217 }
2218
2219 if (want_sdp) {
2220 print_sdp(output_files, nb_output_files);
2221 }
2222
2223 if (verbose >= 0)
2224 fprintf(stderr, "Press ctrl-c to stop encoding\n");
2225 term_init();
2226
2227 timer_start = av_gettime();
2228
2229 for(; received_sigterm == 0;) {
2230 int file_index, ist_index;
2231 AVPacket pkt;
2232 int64_t ipts_min;
2233 double opts_min;
2234
2235 redo:
2236 ipts_min = INT64_MAX;
2237 opts_min= 1e100;
2238
2239 /* select the stream that we must read now by looking at the
2240 smallest output pts */
2241 file_index = -1;
2242 for (i = 0; i < nb_output_streams; i++) {
2243 int64_t ipts;
2244 double opts;
2245 ost = &output_streams[i];
2246 os = output_files[ost->file_index].ctx;
2247 ist = &input_streams[ost->source_index];
2248 if(ist->is_past_recording_time || no_packet[ist->file_index])
2249 continue;
2250 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2251 ipts = ist->pts;
2252 if (!input_files[ist->file_index].eof_reached){
2253 if(ipts < ipts_min) {
2254 ipts_min = ipts;
2255 if(input_sync ) file_index = ist->file_index;
2256 }
2257 if(opts < opts_min) {
2258 opts_min = opts;
2259 if(!input_sync) file_index = ist->file_index;
2260 }
2261 }
2262 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2263 file_index= -1;
2264 break;
2265 }
2266 }
2267 /* if none, if is finished */
2268 if (file_index < 0) {
2269 if(no_packet_count){
2270 no_packet_count=0;
2271 memset(no_packet, 0, nb_input_files);
2272 usleep(10000);
2273 continue;
2274 }
2275 break;
2276 }
2277
2278 /* finish if limit size exhausted */
2279 if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0].ctx->pb))
2280 break;
2281
2282 /* read a frame from it and output it in the fifo */
2283 is = input_files[file_index].ctx;
2284 ret= av_read_frame(is, &pkt);
2285 if(ret == AVERROR(EAGAIN)){
2286 no_packet[file_index]=1;
2287 no_packet_count++;
2288 continue;
2289 }
2290 if (ret < 0) {
2291 input_files[file_index].eof_reached = 1;
2292 if (opt_shortest)
2293 break;
2294 else
2295 continue;
2296 }
2297
2298 no_packet_count=0;
2299 memset(no_packet, 0, nb_input_files);
2300
2301 if (do_pkt_dump) {
2302 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2303 is->streams[pkt.stream_index]);
2304 }
2305 /* the following test is needed in case new streams appear
2306 dynamically in stream : we ignore them */
2307 if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2308 goto discard_packet;
2309 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2310 ist = &input_streams[ist_index];
2311 if (ist->discard)
2312 goto discard_packet;
2313
2314 if (pkt.dts != AV_NOPTS_VALUE)
2315 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2316 if (pkt.pts != AV_NOPTS_VALUE)
2317 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2318
2319 if (ist->ts_scale) {
2320 if(pkt.pts != AV_NOPTS_VALUE)
2321 pkt.pts *= ist->ts_scale;
2322 if(pkt.dts != AV_NOPTS_VALUE)
2323 pkt.dts *= ist->ts_scale;
2324 }
2325
2326 // fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files[ist->file_index].ts_offset, ist->st->codec->codec_type);
2327 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2328 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2329 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2330 int64_t delta= pkt_dts - ist->next_pts;
2331 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2332 input_files[ist->file_index].ts_offset -= delta;
2333 if (verbose > 2)
2334 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2335 delta, input_files[ist->file_index].ts_offset);
2336 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2337 if(pkt.pts != AV_NOPTS_VALUE)
2338 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2339 }
2340 }
2341
2342 /* finish if recording time exhausted */
2343 if (recording_time != INT64_MAX &&
2344 av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2345 ist->is_past_recording_time = 1;
2346 goto discard_packet;
2347 }
2348
2349 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2350 if (output_packet(ist, ist_index, output_streams, nb_output_streams, &pkt) < 0) {
2351
2352 if (verbose >= 0)
2353 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2354 ist->file_index, ist->st->index);
2355 if (exit_on_error)
2356 exit_program(1);
2357 av_free_packet(&pkt);
2358 goto redo;
2359 }
2360
2361 discard_packet:
2362 av_free_packet(&pkt);
2363
2364 /* dump report by using the output first video and audio streams */
2365 print_report(output_files, output_streams, nb_output_streams, 0);
2366 }
2367
2368 /* at the end of stream, we must flush the decoder buffers */
2369 for (i = 0; i < nb_input_streams; i++) {
2370 ist = &input_streams[i];
2371 if (ist->decoding_needed) {
2372 output_packet(ist, i, output_streams, nb_output_streams, NULL);
2373 }
2374 }
2375
2376 term_exit();
2377
2378 /* write the trailer if needed and close file */
2379 for(i=0;i<nb_output_files;i++) {
2380 os = output_files[i].ctx;
2381 av_write_trailer(os);
2382 }
2383
2384 /* dump report by using the first video and audio streams */
2385 print_report(output_files, output_streams, nb_output_streams, 1);
2386
2387 /* close each encoder */
2388 for (i = 0; i < nb_output_streams; i++) {
2389 ost = &output_streams[i];
2390 if (ost->encoding_needed) {
2391 av_freep(&ost->st->codec->stats_in);
2392 avcodec_close(ost->st->codec);
2393 }
2394 #if CONFIG_AVFILTER
2395 avfilter_graph_free(&ost->graph);
2396 #endif
2397 }
2398
2399 /* close each decoder */
2400 for (i = 0; i < nb_input_streams; i++) {
2401 ist = &input_streams[i];
2402 if (ist->decoding_needed) {
2403 avcodec_close(ist->st->codec);
2404 }
2405 }
2406
2407 /* finished ! */
2408 ret = 0;
2409
2410 fail:
2411 av_freep(&bit_buffer);
2412 av_freep(&no_packet);
2413
2414 if (output_streams) {
2415 for (i = 0; i < nb_output_streams; i++) {
2416 ost = &output_streams[i];
2417 if (ost) {
2418 if (ost->st->stream_copy)
2419 av_freep(&ost->st->codec->extradata);
2420 if (ost->logfile) {
2421 fclose(ost->logfile);
2422 ost->logfile = NULL;
2423 }
2424 av_fifo_free(ost->fifo); /* works even if fifo is not
2425 initialized but set to zero */
2426 av_freep(&ost->st->codec->subtitle_header);
2427 av_free(ost->pict_tmp.data[0]);
2428 av_free(ost->forced_kf_pts);
2429 if (ost->video_resample)
2430 sws_freeContext(ost->img_resample_ctx);
2431 if (ost->resample)
2432 audio_resample_close(ost->resample);
2433 if (ost->reformat_ctx)
2434 av_audio_convert_free(ost->reformat_ctx);
2435 av_dict_free(&ost->opts);
2436 }
2437 }
2438 }
2439 return ret;
2440 }
2441
2442 static int opt_format(const char *opt, const char *arg)
2443 {
2444 last_asked_format = arg;
2445 return 0;
2446 }
2447
2448 static int opt_video_rc_override_string(const char *opt, const char *arg)
2449 {
2450 video_rc_override_string = arg;
2451 return 0;
2452 }
2453
2454 static int opt_me_threshold(const char *opt, const char *arg)
2455 {
2456 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2457 return 0;
2458 }
2459
2460 static int opt_verbose(const char *opt, const char *arg)
2461 {
2462 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2463 return 0;
2464 }
2465
2466 static int opt_frame_rate(const char *opt, const char *arg)
2467 {
2468 if (av_parse_video_rate(&frame_rate, arg) < 0) {
2469 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2470 exit_program(1);
2471 }
2472 return 0;
2473 }
2474
2475 static int opt_frame_crop(const char *opt, const char *arg)
2476 {
2477 fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2478 return AVERROR(EINVAL);
2479 }
2480
2481 static int opt_frame_size(const char *opt, const char *arg)
2482 {
2483 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2484 fprintf(stderr, "Incorrect frame size\n");
2485 return AVERROR(EINVAL);
2486 }
2487 return 0;
2488 }
2489
2490 static int opt_pad(const char *opt, const char *arg) {
2491 fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2492 return -1;
2493 }
2494
2495 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2496 {
2497 if (strcmp(arg, "list")) {
2498 frame_pix_fmt = av_get_pix_fmt(arg);
2499 if (frame_pix_fmt == PIX_FMT_NONE) {
2500 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2501 return AVERROR(EINVAL);
2502 }
2503 } else {
2504 show_pix_fmts();
2505 exit_program(0);
2506 }
2507 return 0;
2508 }
2509
2510 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2511 {
2512 int x = 0, y = 0;
2513 double ar = 0;
2514 const char *p;
2515 char *end;
2516
2517 p = strchr(arg, ':');
2518 if (p) {
2519 x = strtol(arg, &end, 10);
2520 if (end == p)
2521 y = strtol(end+1, &end, 10);
2522 if (x > 0 && y > 0)
2523 ar = (double)x / (double)y;
2524 } else
2525 ar = strtod(arg, NULL);
2526
2527 if (!ar) {
2528 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2529 return AVERROR(EINVAL);
2530 }
2531 frame_aspect_ratio = ar;
2532 return 0;
2533 }
2534
2535 static int opt_metadata(const char *opt, const char *arg)
2536 {
2537 char *mid= strchr(arg, '=');
2538
2539 if(!mid){
2540 fprintf(stderr, "Missing =\n");
2541 exit_program(1);
2542 }
2543 *mid++= 0;
2544
2545 av_dict_set(&metadata, arg, mid, 0);
2546
2547 return 0;
2548 }
2549
2550 static int opt_qscale(const char *opt, const char *arg)
2551 {
2552 video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2553 if (video_qscale == 0) {
2554 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2555 return AVERROR(EINVAL);
2556 }
2557 return 0;
2558 }
2559
2560 static int opt_top_field_first(const char *opt, const char *arg)
2561 {
2562 top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2563 return 0;
2564 }
2565
2566 static int opt_thread_count(const char *opt, const char *arg)
2567 {
2568 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2569 #if !HAVE_THREADS
2570 if (verbose >= 0)
2571 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2572 #endif
2573 return 0;
2574 }
2575
2576 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2577 {
2578 if (strcmp(arg, "list")) {
2579 audio_sample_fmt = av_get_sample_fmt(arg);
2580 if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2581 av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2582 return AVERROR(EINVAL);
2583 }
2584 } else {
2585 int i;
2586 char fmt_str[128];
2587 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2588 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2589 exit_program(0);
2590 }
2591 return 0;
2592 }
2593
2594 static int opt_audio_rate(const char *opt, const char *arg)
2595 {
2596 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2597 return 0;
2598 }
2599
2600 static int opt_audio_channels(const char *opt, const char *arg)
2601 {
2602 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2603 return 0;
2604 }
2605
2606 static int opt_codec(const char *opt, const char *arg)
2607 {
2608 return av_dict_set(&codec_names, opt, arg, 0);
2609 }
2610
2611 static int opt_audio_codec(const char *opt, const char *arg)
2612 {
2613 return opt_codec("codec:a", arg);
2614 }
2615
2616 static int opt_video_codec(const char *opt, const char *arg)
2617 {
2618 return opt_codec("codec:v", arg);
2619 }
2620
2621 static int opt_subtitle_codec(const char *opt, const char *arg)
2622 {
2623 return opt_codec("codec:s", arg);
2624 }
2625
2626 static int opt_data_codec(const char *opt, const char *arg)
2627 {
2628 return opt_codec("codec:d", arg);
2629 }
2630
2631 static int opt_codec_tag(const char *opt, const char *arg)
2632 {
2633 char *tail;
2634 uint32_t *codec_tag;
2635
2636 codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2637 !strcmp(opt, "vtag") ? &video_codec_tag :
2638 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2639 if (!codec_tag)
2640 return -1;
2641
2642 *codec_tag = strtol(arg, &tail, 0);
2643 if (!tail || *tail)
2644 *codec_tag = AV_RL32(arg);
2645
2646 return 0;
2647 }
2648
2649 static int opt_map(const char *opt, const char *arg)
2650 {
2651 StreamMap *m = NULL;
2652 int i, negative = 0, file_idx;
2653 int sync_file_idx = -1, sync_stream_idx;
2654 char *p, *sync;
2655 char *map;
2656
2657 if (*arg == '-') {
2658 negative = 1;
2659 arg++;
2660 }
2661 map = av_strdup(arg);
2662
2663 /* parse sync stream first, just pick first matching stream */
2664 if (sync = strchr(map, ',')) {
2665 *sync = 0;
2666 sync_file_idx = strtol(sync + 1, &sync, 0);
2667 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2668 av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2669 exit_program(1);
2670 }
2671 if (*sync)
2672 sync++;
2673 for (i = 0; i < input_files[sync_file_idx].ctx->nb_streams; i++)
2674 if (check_stream_specifier(input_files[sync_file_idx].ctx,
2675 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2676 sync_stream_idx = i;
2677 break;
2678 }
2679 if (i == input_files[sync_file_idx].ctx->nb_streams) {
2680 av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2681 "match any streams.\n", arg);
2682 exit_program(1);
2683 }
2684 }
2685
2686
2687 file_idx = strtol(map, &p, 0);
2688 if (file_idx >= nb_input_files || file_idx < 0) {
2689 av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2690 exit_program(1);
2691 }
2692 if (negative)
2693 /* disable some already defined maps */
2694 for (i = 0; i < nb_stream_maps; i++) {
2695 m = &stream_maps[i];
2696 if (check_stream_specifier(input_files[m->file_index].ctx,
2697 input_files[m->file_index].ctx->streams[m->stream_index],
2698 *p == ':' ? p + 1 : p) > 0)
2699 m->disabled = 1;
2700 }
2701 else
2702 for (i = 0; i < input_files[file_idx].ctx->nb_streams; i++) {
2703 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2704 *p == ':' ? p + 1 : p) <= 0)
2705 continue;
2706 stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2707 m = &stream_maps[nb_stream_maps - 1];
2708
2709 m->file_index = file_idx;
2710 m->stream_index = i;
2711
2712 if (sync_file_idx >= 0) {
2713 m->sync_file_index = sync_file_idx;
2714 m->sync_stream_index = sync_stream_idx;
2715 } else {
2716 m->sync_file_index = file_idx;
2717 m->sync_stream_index = i;
2718 }
2719 }
2720
2721 if (!m) {
2722 av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2723 exit_program(1);
2724 }
2725
2726 av_freep(&map);
2727 return 0;
2728 }
2729
2730 static void parse_meta_type(char *arg, char *type, int *index)
2731 {
2732 if (*arg == ':') {
2733 *type = *(++arg);
2734 switch (*arg) {
2735 case 'g':
2736 break;
2737 case 's':
2738 case 'c':
2739 case 'p':
2740 if (*(++arg) == ':')
2741 *index = strtol(++arg, NULL, 0);
2742 break;
2743 default:
2744 fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2745 exit_program(1);
2746 }
2747 } else
2748 *type = 'g';
2749 }
2750
2751 static int opt_map_metadata(const char *opt, const char *arg)
2752 {
2753 MetadataMap *m, *m1;
2754 char *p;
2755
2756 meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2757 &nb_meta_data_maps, nb_meta_data_maps + 1);
2758
2759 m = &meta_data_maps[nb_meta_data_maps - 1][1];
2760 m->file = strtol(arg, &p, 0);
2761 parse_meta_type(p, &m->type, &m->index);
2762
2763 m1 = &meta_data_maps[nb_meta_data_maps - 1][0];
2764 if (p = strchr(opt, ':'))
2765 parse_meta_type(p, &m1->type, &m1->index);
2766 else
2767 m1->type = 'g';
2768
2769 if (m->type == 'g' || m1->type == 'g')
2770 metadata_global_autocopy = 0;
2771 if (m->type == 's' || m1->type == 's')
2772 metadata_streams_autocopy = 0;
2773 if (m->type == 'c' || m1->type == 'c')
2774 metadata_chapters_autocopy = 0;
2775
2776 return 0;
2777 }
2778
2779 static int opt_input_ts_scale(const char *opt, const char *arg)
2780 {
2781 return av_dict_set(&ts_scale, opt, arg, 0);
2782 }
2783
2784 static int opt_recording_time(const char *opt, const char *arg)
2785 {
2786 recording_time = parse_time_or_die(opt, arg, 1);
2787 return 0;
2788 }
2789
2790 static int opt_start_time(const char *opt, const char *arg)
2791 {
2792 start_time = parse_time_or_die(opt, arg, 1);
2793 return 0;
2794 }
2795
2796 static int opt_input_ts_offset(const char *opt, const char *arg)
2797 {
2798 input_ts_offset = parse_time_or_die(opt, arg, 1);
2799 return 0;
2800 }
2801
2802 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2803 {
2804 const char *codec_string = encoder ? "encoder" : "decoder";
2805 AVCodec *codec;
2806
2807 if(!name)
2808 return CODEC_ID_NONE;
2809 codec = encoder ?
2810 avcodec_find_encoder_by_name(name) :
2811 avcodec_find_decoder_by_name(name);
2812 if(!codec) {
2813 av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2814 exit_program(1);
2815 }
2816 if(codec->type != type) {
2817 av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2818 exit_program(1);
2819 }
2820 return codec->id;
2821 }
2822
2823 static AVCodec *choose_codec(AVFormatContext *s, AVStream *st, enum AVMediaType type, AVDictionary *codec_names)
2824 {
2825 AVDictionaryEntry *e = NULL;
2826 char *codec_name = NULL;
2827 int ret;
2828
2829 while (e = av_dict_get(codec_names, "", e, AV_DICT_IGNORE_SUFFIX)) {
2830 char *p = strchr(e->key, ':');
2831
2832 if ((ret = check_stream_specifier(s, st, p ? p + 1 : "")) > 0)
2833 codec_name = e->value;
2834 else if (ret < 0)
2835 exit_program(1);
2836 }
2837
2838 if (!codec_name) {
2839 if (s->oformat) {
2840 st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
2841 return avcodec_find_encoder(st->codec->codec_id);
2842 }
2843 } else if (!strcmp(codec_name, "copy"))
2844 st->stream_copy = 1;
2845 else {
2846 st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
2847 return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
2848 avcodec_find_decoder_by_name(codec_name);
2849 }
2850
2851 return NULL;
2852 }
2853
2854 /**
2855 * Add all the streams from the given input file to the global
2856 * list of input streams.
2857 */
2858 static void add_input_streams(AVFormatContext *ic)
2859 {
2860 int i, rfps, rfps_base, ret;
2861
2862 for (i = 0; i < ic->nb_streams; i++) {
2863 AVStream *st = ic->streams[i];
2864 AVCodecContext *dec = st->codec;
2865 AVDictionaryEntry *e = NULL;
2866 InputStream *ist;
2867 char *scale = NULL;
2868
2869 dec->thread_count = thread_count;
2870
2871 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2872 ist = &input_streams[nb_input_streams - 1];
2873 ist->st = st;
2874 ist->file_index = nb_input_files;
2875 ist->discard = 1;
2876 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2877
2878 while (e = av_dict_get(ts_scale, "", e, AV_DICT_IGNORE_SUFFIX)) {
2879 char *p = strchr(e->key, ':');
2880
2881 if ((ret = check_stream_specifier(ic, st, p ? p + 1 : "")) > 0)
2882 scale = e->value;
2883 else if (ret < 0)
2884 exit_program(1);
2885 }
2886 if (scale)
2887 ist->ts_scale = strtod(scale, NULL);
2888
2889 ist->dec = choose_codec(ic, st, dec->codec_type, codec_names);
2890
2891 switch (dec->codec_type) {
2892 case AVMEDIA_TYPE_AUDIO:
2893 if(audio_disable)
2894 st->discard= AVDISCARD_ALL;
2895 break;
2896 case AVMEDIA_TYPE_VIDEO:
2897 rfps = ic->streams[i]->r_frame_rate.num;
2898 rfps_base = ic->streams[i]->r_frame_rate.den;
2899 if (dec->lowres) {
2900 dec->flags |= CODEC_FLAG_EMU_EDGE;
2901 dec->height >>= dec->lowres;
2902 dec->width >>= dec->lowres;
2903 }
2904 if(me_threshold)
2905 dec->debug |= FF_DEBUG_MV;
2906
2907 if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
2908
2909 if (verbose >= 0)
2910 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2911 i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
2912
2913 (float)rfps / rfps_base, rfps, rfps_base);
2914 }
2915
2916 if(video_disable)
2917 st->discard= AVDISCARD_ALL;
2918 else if(video_discard)
2919 st->discard= video_discard;
2920 break;
2921 case AVMEDIA_TYPE_DATA:
2922 break;
2923 case AVMEDIA_TYPE_SUBTITLE:
2924 if(subtitle_disable)
2925 st->discard = AVDISCARD_ALL;
2926 break;
2927 case AVMEDIA_TYPE_ATTACHMENT:
2928 case AVMEDIA_TYPE_UNKNOWN:
2929 break;
2930 default:
2931 abort();
2932 }
2933 }
2934 }
2935
2936 static int opt_input_file(const char *opt, const char *filename)
2937 {
2938 AVFormatContext *ic;
2939 AVInputFormat *file_iformat = NULL;
2940 int err, i, ret;
2941 int64_t timestamp;
2942 uint8_t buf[128];
2943 AVDictionary **opts;
2944 int orig_nb_streams; // number of streams before avformat_find_stream_info
2945
2946 if (last_asked_format) {
2947 if (!(file_iformat = av_find_input_format(last_asked_format))) {
2948 fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
2949 exit_program(1);
2950 }
2951 last_asked_format = NULL;
2952 }
2953
2954 if (!strcmp(filename, "-"))
2955 filename = "pipe:";
2956
2957 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2958 !strcmp(filename, "/dev/stdin");
2959
2960 /* get default parameters from command line */
2961 ic = avformat_alloc_context();
2962 if (!ic) {
2963 print_error(filename, AVERROR(ENOMEM));
2964 exit_program(1);
2965 }
2966 if (audio_sample_rate) {
2967 snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
2968 av_dict_set(&format_opts, "sample_rate", buf, 0);
2969 }
2970 if (audio_channels) {
2971 snprintf(buf, sizeof(buf), "%d", audio_channels);
2972 av_dict_set(&format_opts, "channels", buf, 0);
2973 }
2974 if (frame_rate.num) {
2975 snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
2976 av_dict_set(&format_opts, "framerate", buf, 0);
2977 }
2978 if (frame_width && frame_height) {
2979 snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
2980 av_dict_set(&format_opts, "video_size", buf, 0);
2981 }
2982 if (frame_pix_fmt != PIX_FMT_NONE)
2983 av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
2984
2985 ic->flags |= AVFMT_FLAG_NONBLOCK;
2986
2987 /* open the input file with generic libav function */
2988 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
2989 if (err < 0) {
2990 print_error(filename, err);
2991 exit_program(1);
2992 }
2993 assert_avoptions(format_opts);
2994
2995 if(opt_programid) {
2996 int i, j;
2997 int found=0;
2998 for(i=0; i<ic->nb_streams; i++){
2999 ic->streams[i]->discard= AVDISCARD_ALL;
3000 }
3001 for(i=0; i<ic->nb_programs; i++){
3002 AVProgram *p= ic->programs[i];
3003 if(p->id != opt_programid){
3004 p->discard = AVDISCARD_ALL;
3005 }else{
3006 found=1;
3007 for(j=0; j<p->nb_stream_indexes; j++){
3008 ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3009 }
3010 }
3011 }
3012 if(!found){
3013 fprintf(stderr, "Specified program id not found\n");
3014 exit_program(1);
3015 }
3016 opt_programid=0;
3017 }
3018
3019 /* apply forced codec ids */
3020 for (i = 0; i < ic->nb_streams; i++)
3021 choose_codec(ic, ic->streams[i], ic->streams[i]->codec->codec_type, codec_names);
3022
3023 /* Set AVCodecContext options for avformat_find_stream_info */
3024 opts = setup_find_stream_info_opts(ic, codec_opts);
3025 orig_nb_streams = ic->nb_streams;
3026
3027 /* If not enough info to get the stream parameters, we decode the
3028 first frames to get it. (used in mpeg case for example) */
3029 ret = avformat_find_stream_info(ic, opts);
3030 if (ret < 0 && verbose >= 0) {
3031 fprintf(stderr, "%s: could not find codec parameters\n", filename);
3032 av_close_input_file(ic);
3033 exit_program(1);
3034 }
3035
3036 timestamp = start_time;
3037 /* add the stream start time */
3038 if (ic->start_time != AV_NOPTS_VALUE)
3039 timestamp += ic->start_time;
3040
3041 /* if seeking requested, we execute it */
3042 if (start_time != 0) {
3043 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3044 if (ret < 0) {
3045 fprintf(stderr, "%s: could not seek to position %0.3f\n",
3046 filename, (double)timestamp / AV_TIME_BASE);
3047 }
3048 /* reset seek info */
3049 start_time = 0;
3050 }
3051
3052 /* update the current parameters so that they match the one of the input stream */
3053 add_input_streams(ic);
3054
3055 /* dump the file content */
3056 if (verbose >= 0)
3057 av_dump_format(ic, nb_input_files, filename, 0);
3058
3059 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3060 input_files[nb_input_files - 1].ctx = ic;
3061 input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
3062 input_files[nb_input_files - 1].ts_offset = input_ts_offset - (copy_ts ? 0 : timestamp);
3063
3064 frame_rate = (AVRational){0, 0};
3065 frame_pix_fmt = PIX_FMT_NONE;
3066 frame_height = 0;
3067 frame_width = 0;
3068 audio_sample_rate = 0;
3069 audio_channels = 0;
3070 audio_sample_fmt = AV_SAMPLE_FMT_NONE;
3071 av_dict_free(&ts_scale);
3072
3073 for (i = 0; i < orig_nb_streams; i++)
3074 av_dict_free(&opts[i]);
3075 av_freep(&opts);
3076 av_dict_free(&codec_names);
3077 uninit_opts();
3078 init_opts();
3079 return 0;
3080 }
3081
3082 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3083 AVCodecContext *avctx)
3084 {
3085 char *p;
3086 int n = 1, i;
3087 int64_t t;
3088
3089 for (p = kf; *p; p++)
3090 if (*p == ',')
3091 n++;
3092 ost->forced_kf_count = n;
3093 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3094 if (!ost->forced_kf_pts) {
3095 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3096 exit_program(1);
3097 }
3098 for (i = 0; i < n; i++) {
3099 p = i ? strchr(p, ',') + 1 : kf;
3100 t = parse_time_or_die("force_key_frames", p, 1);
3101 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3102 }
3103 }
3104
3105 static OutputStream *new_output_stream(AVFormatContext *oc, enum AVMediaType type)
3106 {
3107 OutputStream *ost;
3108 AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3109 int idx = oc->nb_streams - 1;
3110
3111 if (!st) {
3112 av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
3113 exit_program(1);
3114 }
3115
3116 output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3117 nb_output_streams + 1);
3118 ost = &output_streams[nb_output_streams - 1];
3119 ost->file_index = nb_output_files;
3120 ost->index = idx;
3121 ost->st = st;
3122 st->codec->codec_type = type;
3123 ost->enc = choose_codec(oc, st, type, codec_names);
3124 if (ost->enc) {
3125 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3126 }
3127
3128 avcodec_get_context_defaults3(st->codec, ost->enc);
3129 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3130
3131 ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
3132 return ost;
3133 }
3134
3135 static OutputStream *new_video_stream(AVFormatContext *oc)
3136 {
3137 AVStream *st;
3138 OutputStream *ost;
3139 AVCodecContext *video_enc;
3140
3141 ost = new_output_stream(oc, AVMEDIA_TYPE_VIDEO);
3142 st = ost->st;
3143 if (!st->stream_copy) {
3144 ost->frame_aspect_ratio = frame_aspect_ratio;
3145 frame_aspect_ratio = 0;
3146 #if CONFIG_AVFILTER
3147 ost->avfilter= vfilters;
3148 vfilters = NULL;
3149 #endif
3150 }
3151
3152 ost->bitstream_filters = video_bitstream_filters;
3153 video_bitstream_filters= NULL;
3154
3155 st->codec->thread_count= thread_count;
3156
3157 video_enc = st->codec;
3158
3159 if(video_codec_tag)
3160 video_enc->codec_tag= video_codec_tag;
3161
3162 if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3163 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3164 }
3165
3166 if (st->stream_copy) {
3167 video_enc->sample_aspect_ratio =
3168 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3169 } else {
3170 const char *p;
3171 int i;
3172
3173 if (frame_rate.num)
3174 ost->frame_rate = frame_rate;
3175
3176 video_enc->width = frame_width;
3177 video_enc->height = frame_height;
3178 video_enc->pix_fmt = frame_pix_fmt;
3179 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3180
3181 if (intra_only)
3182 video_enc->gop_size = 0;
3183 if (video_qscale || same_quant) {
3184 video_enc->flags |= CODEC_FLAG_QSCALE;
3185 video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3186 }
3187
3188 if(intra_matrix)
3189 video_enc->intra_matrix = intra_matrix;
3190 if(inter_matrix)
3191 video_enc->inter_matrix = inter_matrix;
3192
3193 p= video_rc_override_string;
3194 for(i=0; p; i++){
3195 int start, end, q;
3196 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3197 if(e!=3){
3198 fprintf(stderr, "error parsing rc_override\n");
3199 exit_program(1);
3200 }
3201 video_enc->rc_override=
3202 av_realloc(video_enc->rc_override,
3203 sizeof(RcOverride)*(i+1));
3204 video_enc->rc_override[i].start_frame= start;
3205 video_enc->rc_override[i].end_frame = end;
3206 if(q>0){
3207 video_enc->rc_override[i].qscale= q;
3208 video_enc->rc_override[i].quality_factor= 1.0;
3209 }
3210 else{
3211 video_enc->rc_override[i].qscale= 0;
3212 video_enc->rc_override[i].quality_factor= -q/100.0;
3213 }
3214 p= strchr(p, '/');
3215 if(p) p++;
3216 }
3217 video_enc->rc_override_count=i;
3218 if (!video_enc->rc_initial_buffer_occupancy)
3219 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3220 video_enc->me_threshold= me_threshold;
3221 video_enc->intra_dc_precision= intra_dc_precision - 8;
3222
3223 if (do_psnr)
3224 video_enc->flags|= CODEC_FLAG_PSNR;
3225
3226 /* two pass mode */
3227 if (do_pass) {
3228 if (do_pass == 1) {
3229 video_enc->flags |= CODEC_FLAG_PASS1;
3230 } else {
3231 video_enc->flags |= CODEC_FLAG_PASS2;
3232 }
3233 }
3234
3235 if (forced_key_frames)
3236 parse_forced_key_frames(forced_key_frames, ost, video_enc);
3237 }
3238 if (video_language) {
3239 av_dict_set(&st->metadata, "language", video_language, 0);
3240 av_freep(&video_language);
3241 }
3242
3243 /* reset some key parameters */
3244 video_disable = 0;
3245 av_freep(&forced_key_frames);
3246 frame_pix_fmt = PIX_FMT_NONE;
3247 return ost;
3248 }
3249
3250 static OutputStream *new_audio_stream(AVFormatContext *oc)
3251 {
3252 AVStream *st;
3253 OutputStream *ost;
3254 AVCodecContext *audio_enc;
3255
3256 ost = new_output_stream(oc, AVMEDIA_TYPE_AUDIO);
3257 st = ost->st;
3258
3259 ost->bitstream_filters = audio_bitstream_filters;
3260 audio_bitstream_filters= NULL;
3261
3262 st->codec->thread_count= thread_count;
3263
3264 audio_enc = st->codec;
3265 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3266
3267 if(audio_codec_tag)
3268 audio_enc->codec_tag= audio_codec_tag;
3269
3270 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3271 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3272 }
3273 if (!st->stream_copy) {
3274 if (audio_qscale > QSCALE_NONE) {
3275 audio_enc->flags |= CODEC_FLAG_QSCALE;
3276 audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3277 }
3278 if (audio_channels)
3279 audio_enc->channels = audio_channels;
3280 if (audio_sample_fmt != AV_SAMPLE_FMT_NONE)
3281 audio_enc->sample_fmt = audio_sample_fmt;
3282 if (audio_sample_rate)
3283 audio_enc->sample_rate = audio_sample_rate;
3284 }
3285 if (audio_language) {
3286 av_dict_set(&st->metadata, "language", audio_language, 0);
3287 av_freep(&audio_language);
3288 }
3289
3290 /* reset some key parameters */
3291 audio_disable = 0;
3292
3293 return ost;
3294 }
3295
3296 static OutputStream *new_data_stream(AVFormatContext *oc)
3297 {
3298 AVStream *st;
3299 OutputStream *ost;
3300 AVCodecContext *data_enc;
3301
3302 ost = new_output_stream(oc, AVMEDIA_TYPE_DATA);
3303 st = ost->st;
3304 data_enc = st->codec;
3305 if (!st->stream_copy) {
3306 fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3307 exit_program(1);
3308 }
3309
3310 if (data_codec_tag)
3311 data_enc->codec_tag= data_codec_tag;
3312
3313 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3314 data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3315 }
3316
3317 data_disable = 0;
3318 return ost;
3319 }
3320
3321 static OutputStream *new_subtitle_stream(AVFormatContext *oc)
3322 {
3323 AVStream *st;
3324 OutputStream *ost;
3325 AVCodecContext *subtitle_enc;
3326
3327 ost = new_output_stream(oc, AVMEDIA_TYPE_SUBTITLE);
3328 st = ost->st;
3329 subtitle_enc = st->codec;
3330
3331 ost->bitstream_filters = subtitle_bitstream_filters;
3332 subtitle_bitstream_filters= NULL;
3333
3334 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3335
3336 if(subtitle_codec_tag)
3337 subtitle_enc->codec_tag= subtitle_codec_tag;
3338
3339 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3340 subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3341 }
3342
3343 if (subtitle_language) {
3344 av_dict_set(&st->metadata, "language", subtitle_language, 0);
3345 av_freep(&subtitle_language);
3346 }
3347
3348 subtitle_disable = 0;
3349 return ost;
3350 }
3351
3352 /* arg format is "output-stream-index:streamid-value". */
3353 static int opt_streamid(const char *opt, const char *arg)
3354 {
3355 int idx;
3356 char *p;
3357 char idx_str[16];
3358
3359 av_strlcpy(idx_str, arg, sizeof(idx_str));
3360 p = strchr(idx_str, ':');
3361 if (!p) {
3362 fprintf(stderr,
3363 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3364 arg, opt);
3365 exit_program(1);
3366 }
3367 *p++ = '\0';
3368 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
3369 streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
3370 streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3371 return 0;
3372 }
3373
3374 static int copy_chapters(int infile, int outfile)
3375 {
3376 AVFormatContext *is = input_files[infile].ctx;
3377 AVFormatContext *os = output_files[outfile].ctx;
3378 int i;
3379
3380 for (i = 0; i < is->nb_chapters; i++) {
3381 AVChapter *in_ch = is->chapters[i], *out_ch;
3382 int64_t ts_off = av_rescale_q(start_time - input_files[infile].ts_offset,
3383 AV_TIME_BASE_Q, in_ch->time_base);
3384 int64_t rt = (recording_time == INT64_MAX) ? INT64_MAX :
3385 av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
3386
3387
3388 if (in_ch->end < ts_off)
3389 continue;
3390 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
3391 break;
3392
3393 out_ch = av_mallocz(sizeof(AVChapter));
3394 if (!out_ch)
3395 return AVERROR(ENOMEM);
3396
3397 out_ch->id = in_ch->id;
3398 out_ch->time_base = in_ch->time_base;
3399 out_ch->start = FFMAX(0, in_ch->start - ts_off);
3400 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
3401
3402 if (metadata_chapters_autocopy)
3403 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
3404
3405 os->nb_chapters++;
3406 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
3407 if (!os->chapters)
3408 return AVERROR(ENOMEM);
3409 os->chapters[os->nb_chapters - 1] = out_ch;
3410 }
3411 return 0;
3412 }
3413
3414 static int read_avserver_streams(AVFormatContext *s, const char *filename)
3415 {
3416 int i, err;
3417 AVFormatContext *ic = NULL;
3418
3419 err = avformat_open_input(&ic, filename, NULL, NULL);
3420 if (err < 0)
3421 return err;
3422 /* copy stream format */
3423 for(i=0;i<ic->nb_streams;i++) {
3424 AVStream *st;
3425 OutputStream *ost;
3426 AVCodec *codec;
3427
3428 codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
3429 ost = new_output_stream(s, codec->type);
3430 st = ost->st;
3431
3432 // FIXME: a more elegant solution is needed
3433 memcpy(st, ic->streams[i], sizeof(AVStream));
3434 st->info = NULL;
3435 avcodec_copy_context(st->codec, ic->streams[i]->codec);
3436
3437 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !st->stream_copy)
3438 choose_sample_fmt(st, codec);
3439 else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !st->stream_copy)
3440 choose_pixel_fmt(st, codec);
3441 }
3442
3443 av_close_input_file(ic);
3444 return 0;
3445 }
3446
3447 static void opt_output_file(const char *filename)
3448 {
3449 AVFormatContext *oc;
3450 int i, err;
3451 AVOutputFormat *file_oformat;
3452 OutputStream *ost;
3453 InputStream *ist;
3454
3455 if (!strcmp(filename, "-"))
3456 filename = "pipe:";
3457
3458 oc = avformat_alloc_context();
3459 if (!oc) {
3460 print_error(filename, AVERROR(ENOMEM));
3461 exit_program(1);
3462 }
3463
3464 if (last_asked_format) {
3465 file_oformat = av_guess_format(last_asked_format, NULL, NULL);
3466 if (!file_oformat) {
3467 fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", last_asked_format);
3468 exit_program(1);
3469 }
3470 last_asked_format = NULL;
3471 } else {
3472 file_oformat = av_guess_format(NULL, filename, NULL);
3473 if (!file_oformat) {
3474 fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3475 filename);
3476 exit_program(1);
3477 }
3478 }
3479
3480 oc->oformat = file_oformat;
3481 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3482
3483 if (!strcmp(file_oformat->name, "ffm") &&
3484 av_strstart(filename, "http:", NULL)) {
3485 /* special case for files sent to avserver: we get the stream
3486 parameters from avserver */
3487 int err = read_avserver_streams(oc, filename);
3488 if (err < 0) {
3489 print_error(filename, err);
3490 exit_program(1);
3491 }
3492 } else if (!nb_stream_maps) {
3493 /* pick the "best" stream of each type */
3494 #define NEW_STREAM(type, index)\
3495 if (index >= 0) {\
3496 ost = new_ ## type ## _stream(oc);\
3497 ost->source_index = index;\
3498 ost->sync_ist = &input_streams[index];\
3499 input_streams[index].discard = 0;\
3500 }
3501
3502 /* video: highest resolution */
3503 if (!video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
3504 int area = 0, idx = -1;
3505 for (i = 0; i < nb_input_streams; i++) {
3506 ist = &input_streams[i];
3507 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3508 ist->st->codec->width * ist->st->codec->height > area) {
3509 area = ist->st->codec->width * ist->st->codec->height;
3510 idx = i;
3511 }
3512 }
3513 NEW_STREAM(video, idx);
3514 }
3515
3516 /* audio: most channels */
3517 if (!audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
3518 int channels = 0, idx = -1;
3519 for (i = 0; i < nb_input_streams; i++) {
3520 ist = &input_streams[i];
3521 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
3522 ist->st->codec->channels > channels) {
3523 channels = ist->st->codec->channels;
3524 idx = i;
3525 }
3526 }
3527 NEW_STREAM(audio, idx);
3528 }
3529
3530 /* subtitles: pick first */
3531 if (!subtitle_disable && oc->oformat->subtitle_codec != CODEC_ID_NONE) {
3532 for (i = 0; i < nb_input_streams; i++)
3533 if (input_streams[i].st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3534 NEW_STREAM(subtitle, i);
3535 break;
3536 }
3537 }
3538 /* do something with data? */
3539 } else {
3540 for (i = 0; i < nb_stream_maps; i++) {
3541 StreamMap *map = &stream_maps[i];
3542
3543 if (map->disabled)
3544 continue;
3545
3546 ist = &input_streams[input_files[map->file_index].ist_index + map->stream_index];
3547 switch (ist->st->codec->codec_type) {
3548 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(oc); break;
3549 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(oc); break;
3550 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(oc); break;
3551 case AVMEDIA_TYPE_DATA: ost = new_data_stream(oc); break;
3552 default:
3553 av_log(NULL, AV_LOG_ERROR, "Cannot map stream #%d.%d - unsupported type.\n",
3554 map->file_index, map->stream_index);
3555 exit_program(1);
3556 }
3557
3558 ost->source_index = input_files[map->file_index].ist_index + map->stream_index;
3559 ost->sync_ist = &input_streams[input_files[map->sync_file_index].ist_index +
3560 map->sync_stream_index];
3561 ist->discard = 0;
3562 }
3563 }
3564
3565 av_dict_copy(&oc->metadata, metadata, 0);
3566 av_dict_free(&metadata);
3567
3568
3569 output_files = grow_array(output_files, sizeof(*output_files), &nb_output_files, nb_output_files + 1);
3570 output_files[nb_output_files - 1].ctx = oc;
3571 output_files[nb_output_files - 1].ost_index = nb_output_streams - oc->nb_streams;
3572 av_dict_copy(&output_files[nb_output_files - 1].opts, format_opts, 0);
3573
3574 /* check filename in case of an image number is expected */
3575 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3576 if (!av_filename_number_test(oc->filename)) {
3577 print_error(oc->filename, AVERROR(EINVAL));
3578 exit_program(1);
3579 }
3580 }
3581
3582 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
3583 /* test if it already exists to avoid loosing precious files */
3584 if (!file_overwrite &&
3585 (strchr(filename, ':') == NULL ||
3586 filename[1] == ':' ||
3587 av_strstart(filename, "file:", NULL))) {
3588 if (avio_check(filename, 0) == 0) {
3589 if (!using_stdin) {
3590 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3591 fflush(stderr);
3592 if (!read_yesno()) {
3593 fprintf(stderr, "Not overwriting - exiting\n");
3594 exit_program(1);
3595 }
3596 }
3597 else {
3598 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3599 exit_program(1);
3600 }
3601 }
3602 }
3603
3604 /* open the file */
3605 if ((err = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE)) < 0) {
3606 print_error(filename, err);
3607 exit_program(1);
3608 }
3609 }
3610
3611 oc->preload= (int)(mux_preload*AV_TIME_BASE);
3612 oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
3613 oc->flags |= AVFMT_FLAG_NONBLOCK;
3614
3615 /* copy chapters */
3616 if (chapters_input_file >= nb_input_files) {
3617 if (chapters_input_file == INT_MAX) {
3618 /* copy chapters from the first input file that has them*/
3619 chapters_input_file = -1;
3620 for (i = 0; i < nb_input_files; i++)
3621 if (input_files[i].ctx->nb_chapters) {
3622 chapters_input_file = i;
3623 break;
3624 }
3625 } else {
3626 av_log(NULL, AV_LOG_ERROR, "Invalid input file index %d in chapter mapping.\n",
3627 chapters_input_file);
3628 exit_program(1);
3629 }
3630 }
3631 if (chapters_input_file >= 0)
3632 copy_chapters(chapters_input_file, nb_output_files - 1);
3633
3634 /* copy metadata */
3635 for (i = 0; i < nb_meta_data_maps; i++) {
3636 AVFormatContext *files[2];
3637 AVDictionary **meta[2];
3638 int j;
3639
3640 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3641 if ((index) < 0 || (index) >= (nb_elems)) {\
3642 av_log(NULL, AV_LOG_ERROR, "Invalid %s index %d while processing metadata maps\n",\
3643 (desc), (index));\
3644 exit_program(1);\
3645 }
3646
3647 int in_file_index = meta_data_maps[i][1].file;
3648 if (in_file_index < 0)
3649 continue;
3650 METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
3651
3652 files[0] = oc;
3653 files[1] = input_files[in_file_index].ctx;
3654
3655 for (j = 0; j < 2; j++) {
3656 MetadataMap *map = &meta_data_maps[i][j];
3657
3658 switch (map->type) {
3659 case 'g':
3660 meta[j] = &files[j]->metadata;
3661 break;
3662 case 's':
3663 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
3664 meta[j] = &files[j]->streams[map->index]->metadata;
3665 break;
3666 case 'c':
3667 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
3668 meta[j] = &files[j]->chapters[map->index]->metadata;
3669 break;
3670 case 'p':
3671 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
3672 meta[j] = &files[j]->programs[map->index]->metadata;
3673 break;
3674 }
3675 }
3676
3677 av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
3678 }