b9410e110f3f68ffb31e72a02105ee6be9c3b768
[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 int is_past_recording_time;
276 } OutputStream;
277
278 typedef struct InputStream {
279 int file_index;
280 AVStream *st;
281 int discard; /* true if stream data should be discarded */
282 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
283 AVCodec *dec;
284
285 int64_t start; /* time when read started */
286 int64_t next_pts; /* synthetic pts for cases where pkt.pts
287 is not defined */
288 int64_t pts; /* current pts */
289 PtsCorrectionContext pts_ctx;
290 double ts_scale;
291 int is_start; /* is 1 at the start and after a discontinuity */
292 int showed_multi_packet_warning;
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 int64_t recording_time; /* desired length of the resulting file in microseconds */
309 int64_t start_time; /* start time in microseconds */
310 } OutputFile;
311
312 static InputStream *input_streams = NULL;
313 static int nb_input_streams = 0;
314 static InputFile *input_files = NULL;
315 static int nb_input_files = 0;
316
317 static OutputStream *output_streams = NULL;
318 static int nb_output_streams = 0;
319 static OutputFile *output_files = NULL;
320 static int nb_output_files = 0;
321
322 #if CONFIG_AVFILTER
323
324 static int configure_video_filters(InputStream *ist, OutputStream *ost)
325 {
326 AVFilterContext *last_filter, *filter;
327 /** filter graph containing all filters including input & output */
328 AVCodecContext *codec = ost->st->codec;
329 AVCodecContext *icodec = ist->st->codec;
330 FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
331 AVRational sample_aspect_ratio;
332 char args[255];
333 int ret;
334
335 ost->graph = avfilter_graph_alloc();
336
337 if (ist->st->sample_aspect_ratio.num){
338 sample_aspect_ratio = ist->st->sample_aspect_ratio;
339 }else
340 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
341
342 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
343 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
344 sample_aspect_ratio.num, sample_aspect_ratio.den);
345
346 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
347 "src", args, NULL, ost->graph);
348 if (ret < 0)
349 return ret;
350 ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
351 "out", NULL, &ffsink_ctx, ost->graph);
352 if (ret < 0)
353 return ret;
354 last_filter = ost->input_video_filter;
355
356 if (codec->width != icodec->width || codec->height != icodec->height) {
357 snprintf(args, 255, "%d:%d:flags=0x%X",
358 codec->width,
359 codec->height,
360 ost->sws_flags);
361 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
362 NULL, args, NULL, ost->graph)) < 0)
363 return ret;
364 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
365 return ret;
366 last_filter = filter;
367 }
368
369 snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
370 ost->graph->scale_sws_opts = av_strdup(args);
371
372 if (ost->avfilter) {
373 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
374 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
375
376 outputs->name = av_strdup("in");
377 outputs->filter_ctx = last_filter;
378 outputs->pad_idx = 0;
379 outputs->next = NULL;
380
381 inputs->name = av_strdup("out");
382 inputs->filter_ctx = ost->output_video_filter;
383 inputs->pad_idx = 0;
384 inputs->next = NULL;
385
386 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
387 return ret;
388 av_freep(&ost->avfilter);
389 } else {
390 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
391 return ret;
392 }
393
394 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
395 return ret;
396
397 codec->width = ost->output_video_filter->inputs[0]->w;
398 codec->height = ost->output_video_filter->inputs[0]->h;
399 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
400 ost->frame_aspect_ratio ? // overriden by the -aspect cli option
401 av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
402 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
403
404 return 0;
405 }
406 #endif /* CONFIG_AVFILTER */
407
408 static void term_exit(void)
409 {
410 av_log(NULL, AV_LOG_QUIET, "");
411 }
412
413 static volatile int received_sigterm = 0;
414 static volatile int received_nb_signals = 0;
415
416 static void
417 sigterm_handler(int sig)
418 {
419 received_sigterm = sig;
420 received_nb_signals++;
421 term_exit();
422 }
423
424 static void term_init(void)
425 {
426 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
427 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
428 #ifdef SIGXCPU
429 signal(SIGXCPU, sigterm_handler);
430 #endif
431 }
432
433 static int decode_interrupt_cb(void)
434 {
435 return received_nb_signals > 1;
436 }
437
438 static int exit_program(int ret)
439 {
440 int i;
441
442 /* close files */
443 for(i=0;i<nb_output_files;i++) {
444 AVFormatContext *s = output_files[i].ctx;
445 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
446 avio_close(s->pb);
447 avformat_free_context(s);
448 av_dict_free(&output_files[i].opts);
449 }
450 for(i=0;i<nb_input_files;i++) {
451 av_close_input_file(input_files[i].ctx);
452 }
453 for (i = 0; i < nb_input_streams; i++)
454 av_dict_free(&input_streams[i].opts);
455
456 av_free(intra_matrix);
457 av_free(inter_matrix);
458
459 if (vstats_file)
460 fclose(vstats_file);
461 av_free(vstats_filename);
462
463 av_free(streamid_map);
464 av_free(meta_data_maps);
465
466 av_freep(&input_streams);
467 av_freep(&input_files);
468 av_freep(&output_streams);
469 av_freep(&output_files);
470
471 uninit_opts();
472 av_free(audio_buf);
473 av_free(audio_out);
474 allocated_audio_buf_size= allocated_audio_out_size= 0;
475 av_free(samples);
476
477 #if CONFIG_AVFILTER
478 avfilter_uninit();
479 #endif
480
481 if (received_sigterm) {
482 fprintf(stderr,
483 "Received signal %d: terminating.\n",
484 (int) received_sigterm);
485 exit (255);
486 }
487
488 exit(ret); /* not all OS-es handle main() return value */
489 return ret;
490 }
491
492 static void assert_avoptions(AVDictionary *m)
493 {
494 AVDictionaryEntry *t;
495 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
496 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
497 exit_program(1);
498 }
499 }
500
501 static void assert_codec_experimental(AVCodecContext *c, int encoder)
502 {
503 const char *codec_string = encoder ? "encoder" : "decoder";
504 AVCodec *codec;
505 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
506 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
507 av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
508 "results.\nAdd '-strict experimental' if you want to use it.\n",
509 codec_string, c->codec->name);
510 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
511 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
512 av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
513 codec_string, codec->name);
514 exit_program(1);
515 }
516 }
517
518 /* similar to ff_dynarray_add() and av_fast_realloc() */
519 static void *grow_array(void *array, int elem_size, int *size, int new_size)
520 {
521 if (new_size >= INT_MAX / elem_size) {
522 fprintf(stderr, "Array too big.\n");
523 exit_program(1);
524 }
525 if (*size < new_size) {
526 uint8_t *tmp = av_realloc(array, new_size*elem_size);
527 if (!tmp) {
528 fprintf(stderr, "Could not alloc buffer.\n");
529 exit_program(1);
530 }
531 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
532 *size = new_size;
533 return tmp;
534 }
535 return array;
536 }
537
538 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
539 {
540 if(codec && codec->sample_fmts){
541 const enum AVSampleFormat *p= codec->sample_fmts;
542 for(; *p!=-1; p++){
543 if(*p == st->codec->sample_fmt)
544 break;
545 }
546 if (*p == -1) {
547 av_log(NULL, AV_LOG_WARNING,
548 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
549 av_get_sample_fmt_name(st->codec->sample_fmt),
550 codec->name,
551 av_get_sample_fmt_name(codec->sample_fmts[0]));
552 st->codec->sample_fmt = codec->sample_fmts[0];
553 }
554 }
555 }
556
557 /**
558 * Update the requested input sample format based on the output sample format.
559 * This is currently only used to request float output from decoders which
560 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
561 * Ideally this will be removed in the future when decoders do not do format
562 * conversion and only output in their native format.
563 */
564 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
565 AVCodecContext *enc)
566 {
567 /* if sample formats match or a decoder sample format has already been
568 requested, just return */
569 if (enc->sample_fmt == dec->sample_fmt ||
570 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
571 return;
572
573 /* if decoder supports more than one output format */
574 if (dec_codec && dec_codec->sample_fmts &&
575 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
576 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
577 const enum AVSampleFormat *p;
578 int min_dec = -1, min_inc = -1;
579
580 /* find a matching sample format in the encoder */
581 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
582 if (*p == enc->sample_fmt) {
583 dec->request_sample_fmt = *p;
584 return;
585 } else if (*p > enc->sample_fmt) {
586 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
587 } else
588 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
589 }
590
591 /* if none match, provide the one that matches quality closest */
592 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
593 enc->sample_fmt - min_dec;
594 }
595 }
596
597 static void choose_sample_rate(AVStream *st, AVCodec *codec)
598 {
599 if(codec && codec->supported_samplerates){
600 const int *p= codec->supported_samplerates;
601 int best=0;
602 int best_dist=INT_MAX;
603 for(; *p; p++){
604 int dist= abs(st->codec->sample_rate - *p);
605 if(dist < best_dist){
606 best_dist= dist;
607 best= *p;
608 }
609 }
610 if(best_dist){
611 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
612 }
613 st->codec->sample_rate= best;
614 }
615 }
616
617 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
618 {
619 if(codec && codec->pix_fmts){
620 const enum PixelFormat *p= codec->pix_fmts;
621 if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
622 if(st->codec->codec_id==CODEC_ID_MJPEG){
623 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
624 }else if(st->codec->codec_id==CODEC_ID_LJPEG){
625 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};
626 }
627 }
628 for(; *p!=-1; p++){
629 if(*p == st->codec->pix_fmt)
630 break;
631 }
632 if (*p == -1) {
633 if(st->codec->pix_fmt != PIX_FMT_NONE)
634 av_log(NULL, AV_LOG_WARNING,
635 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
636 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
637 codec->name,
638 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
639 st->codec->pix_fmt = codec->pix_fmts[0];
640 }
641 }
642 }
643
644 static double
645 get_sync_ipts(const OutputStream *ost)
646 {
647 const InputStream *ist = ost->sync_ist;
648 OutputFile *of = &output_files[ost->file_index];
649 return (double)(ist->pts - of->start_time)/AV_TIME_BASE;
650 }
651
652 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
653 int ret;
654
655 while(bsfc){
656 AVPacket new_pkt= *pkt;
657 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
658 &new_pkt.data, &new_pkt.size,
659 pkt->data, pkt->size,
660 pkt->flags & AV_PKT_FLAG_KEY);
661 if(a>0){
662 av_free_packet(pkt);
663 new_pkt.destruct= av_destruct_packet;
664 } else if(a<0){
665 fprintf(stderr, "%s failed for stream %d, codec %s",
666 bsfc->filter->name, pkt->stream_index,
667 avctx->codec ? avctx->codec->name : "copy");
668 print_error("", a);
669 if (exit_on_error)
670 exit_program(1);
671 }
672 *pkt= new_pkt;
673
674 bsfc= bsfc->next;
675 }
676
677 ret= av_interleaved_write_frame(s, pkt);
678 if(ret < 0){
679 print_error("av_interleaved_write_frame()", ret);
680 exit_program(1);
681 }
682 }
683
684 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
685
686 static void do_audio_out(AVFormatContext *s,
687 OutputStream *ost,
688 InputStream *ist,
689 unsigned char *buf, int size)
690 {
691 uint8_t *buftmp;
692 int64_t audio_out_size, audio_buf_size;
693 int64_t allocated_for_size= size;
694
695 int size_out, frame_bytes, ret, resample_changed;
696 AVCodecContext *enc= ost->st->codec;
697 AVCodecContext *dec= ist->st->codec;
698 int osize = av_get_bytes_per_sample(enc->sample_fmt);
699 int isize = av_get_bytes_per_sample(dec->sample_fmt);
700 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
701
702 need_realloc:
703 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
704 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
705 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
706 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
707 audio_buf_size*= osize*enc->channels;
708
709 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
710 if(coded_bps > 8*osize)
711 audio_out_size= audio_out_size * coded_bps / (8*osize);
712 audio_out_size += FF_MIN_BUFFER_SIZE;
713
714 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
715 fprintf(stderr, "Buffer sizes too large\n");
716 exit_program(1);
717 }
718
719 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
720 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
721 if (!audio_buf || !audio_out){
722 fprintf(stderr, "Out of memory in do_audio_out\n");
723 exit_program(1);
724 }
725
726 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
727 ost->audio_resample = 1;
728
729 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
730 ost->resample_channels != dec->channels ||
731 ost->resample_sample_rate != dec->sample_rate;
732
733 if ((ost->audio_resample && !ost->resample) || resample_changed) {
734 if (resample_changed) {
735 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",
736 ist->file_index, ist->st->index,
737 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
738 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
739 ost->resample_sample_fmt = dec->sample_fmt;
740 ost->resample_channels = dec->channels;
741 ost->resample_sample_rate = dec->sample_rate;
742 if (ost->resample)
743 audio_resample_close(ost->resample);
744 }
745 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
746 if (audio_sync_method <= 1 &&
747 ost->resample_sample_fmt == enc->sample_fmt &&
748 ost->resample_channels == enc->channels &&
749 ost->resample_sample_rate == enc->sample_rate) {
750 ost->resample = NULL;
751 ost->audio_resample = 0;
752 } else if (ost->audio_resample) {
753 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
754 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
755 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
756 enc->sample_rate, dec->sample_rate,
757 enc->sample_fmt, dec->sample_fmt,
758 16, 10, 0, 0.8);
759 if (!ost->resample) {
760 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
761 dec->channels, dec->sample_rate,
762 enc->channels, enc->sample_rate);
763 exit_program(1);
764 }
765 }
766 }
767
768 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
769 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
770 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
771 if (ost->reformat_ctx)
772 av_audio_convert_free(ost->reformat_ctx);
773 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
774 dec->sample_fmt, 1, NULL, 0);
775 if (!ost->reformat_ctx) {
776 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
777 av_get_sample_fmt_name(dec->sample_fmt),
778 av_get_sample_fmt_name(enc->sample_fmt));
779 exit_program(1);
780 }
781 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
782 }
783
784 if(audio_sync_method){
785 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
786 - av_fifo_size(ost->fifo)/(enc->channels * 2);
787 double idelta= delta*dec->sample_rate / enc->sample_rate;
788 int byte_delta= ((int)idelta)*2*dec->channels;
789
790 //FIXME resample delay
791 if(fabs(delta) > 50){
792 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
793 if(byte_delta < 0){
794 byte_delta= FFMAX(byte_delta, -size);
795 size += byte_delta;
796 buf -= byte_delta;
797 if(verbose > 2)
798 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
799 if(!size)
800 return;
801 ist->is_start=0;
802 }else{
803 static uint8_t *input_tmp= NULL;
804 input_tmp= av_realloc(input_tmp, byte_delta + size);
805
806 if(byte_delta > allocated_for_size - size){
807 allocated_for_size= byte_delta + (int64_t)size;
808 goto need_realloc;
809 }
810 ist->is_start=0;
811
812 memset(input_tmp, 0, byte_delta);
813 memcpy(input_tmp + byte_delta, buf, size);
814 buf= input_tmp;
815 size += byte_delta;
816 if(verbose > 2)
817 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
818 }
819 }else if(audio_sync_method>1){
820 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
821 av_assert0(ost->audio_resample);
822 if(verbose > 2)
823 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
824 // 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));
825 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
826 }
827 }
828 }else
829 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
830 - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
831
832 if (ost->audio_resample) {
833 buftmp = audio_buf;
834 size_out = audio_resample(ost->resample,
835 (short *)buftmp, (short *)buf,
836 size / (dec->channels * isize));
837 size_out = size_out * enc->channels * osize;
838 } else {
839 buftmp = buf;
840 size_out = size;
841 }
842
843 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
844 const void *ibuf[6]= {buftmp};
845 void *obuf[6]= {audio_buf};
846 int istride[6]= {isize};
847 int ostride[6]= {osize};
848 int len= size_out/istride[0];
849 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
850 printf("av_audio_convert() failed\n");
851 if (exit_on_error)
852 exit_program(1);
853 return;
854 }
855 buftmp = audio_buf;
856 size_out = len*osize;
857 }
858
859 /* now encode as many frames as possible */
860 if (enc->frame_size > 1) {
861 /* output resampled raw samples */
862 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
863 fprintf(stderr, "av_fifo_realloc2() failed\n");
864 exit_program(1);
865 }
866 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
867
868 frame_bytes = enc->frame_size * osize * enc->channels;
869
870 while (av_fifo_size(ost->fifo) >= frame_bytes) {
871 AVPacket pkt;
872 av_init_packet(&pkt);
873
874 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
875
876 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
877
878 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
879 (short *)audio_buf);
880 if (ret < 0) {
881 fprintf(stderr, "Audio encoding failed\n");
882 exit_program(1);
883 }
884 audio_size += ret;
885 pkt.stream_index= ost->index;
886 pkt.data= audio_out;
887 pkt.size= ret;
888 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
889 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
890 pkt.flags |= AV_PKT_FLAG_KEY;
891 write_frame(s, &pkt, enc, ost->bitstream_filters);
892
893 ost->sync_opts += enc->frame_size;
894 }
895 } else {
896 AVPacket pkt;
897 av_init_packet(&pkt);
898
899 ost->sync_opts += size_out / (osize * enc->channels);
900
901 /* output a pcm frame */
902 /* determine the size of the coded buffer */
903 size_out /= osize;
904 if (coded_bps)
905 size_out = size_out*coded_bps/8;
906
907 if(size_out > audio_out_size){
908 fprintf(stderr, "Internal error, buffer size too small\n");
909 exit_program(1);
910 }
911
912 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
913 ret = avcodec_encode_audio(enc, audio_out, size_out,
914 (short *)buftmp);
915 if (ret < 0) {
916 fprintf(stderr, "Audio encoding failed\n");
917 exit_program(1);
918 }
919 audio_size += ret;
920 pkt.stream_index= ost->index;
921 pkt.data= audio_out;
922 pkt.size= ret;
923 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
924 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
925 pkt.flags |= AV_PKT_FLAG_KEY;
926 write_frame(s, &pkt, enc, ost->bitstream_filters);
927 }
928 }
929
930 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
931 {
932 AVCodecContext *dec;
933 AVPicture *picture2;
934 AVPicture picture_tmp;
935 uint8_t *buf = 0;
936
937 dec = ist->st->codec;
938
939 /* deinterlace : must be done before any resize */
940 if (do_deinterlace) {
941 int size;
942
943 /* create temporary picture */
944 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
945 buf = av_malloc(size);
946 if (!buf)
947 return;
948
949 picture2 = &picture_tmp;
950 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
951
952 if(avpicture_deinterlace(picture2, picture,
953 dec->pix_fmt, dec->width, dec->height) < 0) {
954 /* if error, do not deinterlace */
955 fprintf(stderr, "Deinterlacing failed\n");
956 av_free(buf);
957 buf = NULL;
958 picture2 = picture;
959 }
960 } else {
961 picture2 = picture;
962 }
963
964 if (picture != picture2)
965 *picture = *picture2;
966 *bufp = buf;
967 }
968
969 /* we begin to correct av delay at this threshold */
970 #define AV_DELAY_MAX 0.100
971
972 static void do_subtitle_out(AVFormatContext *s,
973 OutputStream *ost,
974 InputStream *ist,
975 AVSubtitle *sub,
976 int64_t pts)
977 {
978 static uint8_t *subtitle_out = NULL;
979 int subtitle_out_max_size = 1024 * 1024;
980 int subtitle_out_size, nb, i;
981 AVCodecContext *enc;
982 AVPacket pkt;
983
984 if (pts == AV_NOPTS_VALUE) {
985 fprintf(stderr, "Subtitle packets must have a pts\n");
986 if (exit_on_error)
987 exit_program(1);
988 return;
989 }
990
991 enc = ost->st->codec;
992
993 if (!subtitle_out) {
994 subtitle_out = av_malloc(subtitle_out_max_size);
995 }
996
997 /* Note: DVB subtitle need one packet to draw them and one other
998 packet to clear them */
999 /* XXX: signal it in the codec context ? */
1000 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1001 nb = 2;
1002 else
1003 nb = 1;
1004
1005 for(i = 0; i < nb; i++) {
1006 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1007 // start_display_time is required to be 0
1008 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1009 sub->end_display_time -= sub->start_display_time;
1010 sub->start_display_time = 0;
1011 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1012 subtitle_out_max_size, sub);
1013 if (subtitle_out_size < 0) {
1014 fprintf(stderr, "Subtitle encoding failed\n");
1015 exit_program(1);
1016 }
1017
1018 av_init_packet(&pkt);
1019 pkt.stream_index = ost->index;
1020 pkt.data = subtitle_out;
1021 pkt.size = subtitle_out_size;
1022 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1023 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1024 /* XXX: the pts correction is handled here. Maybe handling
1025 it in the codec would be better */
1026 if (i == 0)
1027 pkt.pts += 90 * sub->start_display_time;
1028 else
1029 pkt.pts += 90 * sub->end_display_time;
1030 }
1031 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1032 }
1033 }
1034
1035 static int bit_buffer_size= 1024*256;
1036 static uint8_t *bit_buffer= NULL;
1037
1038 static void do_video_resample(OutputStream *ost,
1039 InputStream *ist,
1040 AVFrame *in_picture,
1041 AVFrame **out_picture)
1042 {
1043 int resample_changed = 0;
1044 AVCodecContext *dec = ist->st->codec;
1045 *out_picture = in_picture;
1046
1047 resample_changed = ost->resample_width != dec->width ||
1048 ost->resample_height != dec->height ||
1049 ost->resample_pix_fmt != dec->pix_fmt;
1050
1051 if (resample_changed) {
1052 av_log(NULL, AV_LOG_INFO,
1053 "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1054 ist->file_index, ist->st->index,
1055 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1056 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt));
1057 if(!ost->video_resample)
1058 ost->video_resample = 1;
1059 }
1060
1061 #if !CONFIG_AVFILTER
1062 if (ost->video_resample) {
1063 *out_picture = &ost->pict_tmp;
1064 if (resample_changed) {
1065 /* initialize a new scaler context */
1066 sws_freeContext(ost->img_resample_ctx);
1067 ost->img_resample_ctx = sws_getContext(
1068 ist->st->codec->width,
1069 ist->st->codec->height,
1070 ist->st->codec->pix_fmt,
1071 ost->st->codec->width,
1072 ost->st->codec->height,
1073 ost->st->codec->pix_fmt,
1074 ost->sws_flags, NULL, NULL, NULL);
1075 if (ost->img_resample_ctx == NULL) {
1076 fprintf(stderr, "Cannot get resampling context\n");
1077 exit_program(1);
1078 }
1079 }
1080 sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1081 0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1082 }
1083 #else
1084 if (resample_changed) {
1085 avfilter_graph_free(&ost->graph);
1086 if (configure_video_filters(ist, ost)) {
1087 fprintf(stderr, "Error reinitialising filters!\n");
1088 exit_program(1);
1089 }
1090 }
1091 #endif
1092 if (resample_changed) {
1093 ost->resample_width = dec->width;
1094 ost->resample_height = dec->height;
1095 ost->resample_pix_fmt = dec->pix_fmt;
1096 }
1097 }
1098
1099
1100 static void do_video_out(AVFormatContext *s,
1101 OutputStream *ost,
1102 InputStream *ist,
1103 AVFrame *in_picture,
1104 int *frame_size, float quality)
1105 {
1106 int nb_frames, i, ret, format_video_sync;
1107 AVFrame *final_picture;
1108 AVCodecContext *enc, *dec;
1109 double sync_ipts;
1110
1111 enc = ost->st->codec;
1112 dec = ist->st->codec;
1113
1114 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1115
1116 /* by default, we output a single frame */
1117 nb_frames = 1;
1118
1119 *frame_size = 0;
1120
1121 format_video_sync = video_sync_method;
1122 if (format_video_sync < 0)
1123 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1124
1125 if (format_video_sync) {
1126 double vdelta = sync_ipts - ost->sync_opts;
1127 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1128 if (vdelta < -1.1)
1129 nb_frames = 0;
1130 else if (format_video_sync == 2) {
1131 if(vdelta<=-0.6){
1132 nb_frames=0;
1133 }else if(vdelta>0.6)
1134 ost->sync_opts= lrintf(sync_ipts);
1135 }else if (vdelta > 1.1)
1136 nb_frames = lrintf(vdelta);
1137 //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);
1138 if (nb_frames == 0){
1139 ++nb_frames_drop;
1140 if (verbose>2)
1141 fprintf(stderr, "*** drop!\n");
1142 }else if (nb_frames > 1) {
1143 nb_frames_dup += nb_frames - 1;
1144 if (verbose>2)
1145 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1146 }
1147 }else
1148 ost->sync_opts= lrintf(sync_ipts);
1149
1150 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1151 if (nb_frames <= 0)
1152 return;
1153
1154 do_video_resample(ost, ist, in_picture, &final_picture);
1155
1156 /* duplicates frame if needed */
1157 for(i=0;i<nb_frames;i++) {
1158 AVPacket pkt;
1159 av_init_packet(&pkt);
1160 pkt.stream_index= ost->index;
1161
1162 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1163 /* raw pictures are written as AVPicture structure to
1164 avoid any copies. We support temorarily the older
1165 method. */
1166 AVFrame* old_frame = enc->coded_frame;
1167 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1168 pkt.data= (uint8_t *)final_picture;
1169 pkt.size= sizeof(AVPicture);
1170 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1171 pkt.flags |= AV_PKT_FLAG_KEY;
1172
1173 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1174 enc->coded_frame = old_frame;
1175 } else {
1176 AVFrame big_picture;
1177
1178 big_picture= *final_picture;
1179 /* better than nothing: use input picture interlaced
1180 settings */
1181 big_picture.interlaced_frame = in_picture->interlaced_frame;
1182 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1183 if(top_field_first == -1)
1184 big_picture.top_field_first = in_picture->top_field_first;
1185 else
1186 big_picture.top_field_first = top_field_first;
1187 }
1188
1189 /* handles same_quant here. This is not correct because it may
1190 not be a global option */
1191 big_picture.quality = quality;
1192 if(!me_threshold)
1193 big_picture.pict_type = 0;
1194 // big_picture.pts = AV_NOPTS_VALUE;
1195 big_picture.pts= ost->sync_opts;
1196 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1197 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1198 if (ost->forced_kf_index < ost->forced_kf_count &&
1199 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1200 big_picture.pict_type = AV_PICTURE_TYPE_I;
1201 ost->forced_kf_index++;
1202 }
1203 ret = avcodec_encode_video(enc,
1204 bit_buffer, bit_buffer_size,
1205 &big_picture);
1206 if (ret < 0) {
1207 fprintf(stderr, "Video encoding failed\n");
1208 exit_program(1);
1209 }
1210
1211 if(ret>0){
1212 pkt.data= bit_buffer;
1213 pkt.size= ret;
1214 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1215 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1216 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1217 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1218 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1219
1220 if(enc->coded_frame->key_frame)
1221 pkt.flags |= AV_PKT_FLAG_KEY;
1222 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1223 *frame_size = ret;
1224 video_size += ret;
1225 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1226 // enc->frame_number-1, ret, enc->pict_type);
1227 /* if two pass, output log */
1228 if (ost->logfile && enc->stats_out) {
1229 fprintf(ost->logfile, "%s", enc->stats_out);
1230 }
1231 }
1232 }
1233 ost->sync_opts++;
1234 ost->frame_number++;
1235 }
1236 }
1237
1238 static double psnr(double d){
1239 return -10.0*log(d)/log(10.0);
1240 }
1241
1242 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1243 int frame_size)
1244 {
1245 AVCodecContext *enc;
1246 int frame_number;
1247 double ti1, bitrate, avg_bitrate;
1248
1249 /* this is executed just the first time do_video_stats is called */
1250 if (!vstats_file) {
1251 vstats_file = fopen(vstats_filename, "w");
1252 if (!vstats_file) {
1253 perror("fopen");
1254 exit_program(1);
1255 }
1256 }
1257
1258 enc = ost->st->codec;
1259 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1260 frame_number = ost->frame_number;
1261 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1262 if (enc->flags&CODEC_FLAG_PSNR)
1263 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1264
1265 fprintf(vstats_file,"f_size= %6d ", frame_size);
1266 /* compute pts value */
1267 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1268 if (ti1 < 0.01)
1269 ti1 = 0.01;
1270
1271 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1272 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1273 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1274 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1275 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1276 }
1277 }
1278
1279 static void print_report(OutputFile *output_files,
1280 OutputStream *ost_table, int nb_ostreams,
1281 int is_last_report)
1282 {
1283 char buf[1024];
1284 OutputStream *ost;
1285 AVFormatContext *oc;
1286 int64_t total_size;
1287 AVCodecContext *enc;
1288 int frame_number, vid, i;
1289 double bitrate, ti1, pts;
1290 static int64_t last_time = -1;
1291 static int qp_histogram[52];
1292
1293 if (!is_last_report) {
1294 int64_t cur_time;
1295 /* display the report every 0.5 seconds */
1296 cur_time = av_gettime();
1297 if (last_time == -1) {
1298 last_time = cur_time;
1299 return;
1300 }
1301 if ((cur_time - last_time) < 500000)
1302 return;
1303 last_time = cur_time;
1304 }
1305
1306
1307 oc = output_files[0].ctx;
1308
1309 total_size = avio_size(oc->pb);
1310 if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1311 total_size= avio_tell(oc->pb);
1312
1313 buf[0] = '\0';
1314 ti1 = 1e10;
1315 vid = 0;
1316 for(i=0;i<nb_ostreams;i++) {
1317 float q = -1;
1318 ost = &ost_table[i];
1319 enc = ost->st->codec;
1320 if (!ost->st->stream_copy && enc->coded_frame)
1321 q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1322 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1323 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1324 }
1325 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1326 float t = (av_gettime()-timer_start) / 1000000.0;
1327
1328 frame_number = ost->frame_number;
1329 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1330 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1331 if(is_last_report)
1332 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1333 if(qp_hist){
1334 int j;
1335 int qp = lrintf(q);
1336 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1337 qp_histogram[qp]++;
1338 for(j=0; j<32; j++)
1339 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1340 }
1341 if (enc->flags&CODEC_FLAG_PSNR){
1342 int j;
1343 double error, error_sum=0;
1344 double scale, scale_sum=0;
1345 char type[3]= {'Y','U','V'};
1346 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1347 for(j=0; j<3; j++){
1348 if(is_last_report){
1349 error= enc->error[j];
1350 scale= enc->width*enc->height*255.0*255.0*frame_number;
1351 }else{
1352 error= enc->coded_frame->error[j];
1353 scale= enc->width*enc->height*255.0*255.0;
1354 }
1355 if(j) scale/=4;
1356 error_sum += error;
1357 scale_sum += scale;
1358 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1359 }
1360 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1361 }
1362 vid = 1;
1363 }
1364 /* compute min output value */
1365 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1366 if ((pts < ti1) && (pts > 0))
1367 ti1 = pts;
1368 }
1369 if (ti1 < 0.01)
1370 ti1 = 0.01;
1371
1372 if (verbose > 0 || is_last_report) {
1373 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1374
1375 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1376 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1377 (double)total_size / 1024, ti1, bitrate);
1378
1379 if (nb_frames_dup || nb_frames_drop)
1380 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1381 nb_frames_dup, nb_frames_drop);
1382
1383 if (verbose >= 0)
1384 fprintf(stderr, "%s \r", buf);
1385
1386 fflush(stderr);
1387 }
1388
1389 if (is_last_report && verbose >= 0){
1390 int64_t raw= audio_size + video_size + extra_size;
1391 fprintf(stderr, "\n");
1392 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1393 video_size/1024.0,
1394 audio_size/1024.0,
1395 extra_size/1024.0,
1396 100.0*(total_size - raw)/raw
1397 );
1398 }
1399 }
1400
1401 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1402 {
1403 int fill_char = 0x00;
1404 if (sample_fmt == AV_SAMPLE_FMT_U8)
1405 fill_char = 0x80;
1406 memset(buf, fill_char, size);
1407 }
1408
1409 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1410 static int output_packet(InputStream *ist, int ist_index,
1411 OutputStream *ost_table, int nb_ostreams,
1412 const AVPacket *pkt)
1413 {
1414 AVFormatContext *os;
1415 OutputStream *ost;
1416 int ret, i;
1417 int got_output;
1418 AVFrame picture;
1419 void *buffer_to_free = NULL;
1420 static unsigned int samples_size= 0;
1421 AVSubtitle subtitle, *subtitle_to_free;
1422 int64_t pkt_pts = AV_NOPTS_VALUE;
1423 #if CONFIG_AVFILTER
1424 int frame_available;
1425 #endif
1426 float quality;
1427
1428 AVPacket avpkt;
1429 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1430
1431 if(ist->next_pts == AV_NOPTS_VALUE)
1432 ist->next_pts= ist->pts;
1433
1434 if (pkt == NULL) {
1435 /* EOF handling */
1436 av_init_packet(&avpkt);
1437 avpkt.data = NULL;
1438 avpkt.size = 0;
1439 goto handle_eof;
1440 } else {
1441 avpkt = *pkt;
1442 }
1443
1444 if(pkt->dts != AV_NOPTS_VALUE)
1445 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1446 if(pkt->pts != AV_NOPTS_VALUE)
1447 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1448
1449 //while we have more to decode or while the decoder did output something on EOF
1450 while (avpkt.size > 0 || (!pkt && got_output)) {
1451 uint8_t *data_buf, *decoded_data_buf;
1452 int data_size, decoded_data_size;
1453 handle_eof:
1454 ist->pts= ist->next_pts;
1455
1456 if(avpkt.size && avpkt.size != pkt->size &&
1457 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1458 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1459 ist->showed_multi_packet_warning=1;
1460 }
1461
1462 /* decode the packet if needed */
1463 decoded_data_buf = NULL; /* fail safe */
1464 decoded_data_size= 0;
1465 data_buf = avpkt.data;
1466 data_size = avpkt.size;
1467 subtitle_to_free = NULL;
1468 if (ist->decoding_needed) {
1469 switch(ist->st->codec->codec_type) {
1470 case AVMEDIA_TYPE_AUDIO:{
1471 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1472 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1473 av_free(samples);
1474 samples= av_malloc(samples_size);
1475 }
1476 decoded_data_size= samples_size;
1477 /* XXX: could avoid copy if PCM 16 bits with same
1478 endianness as CPU */
1479 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1480 &avpkt);
1481 if (ret < 0)
1482 return ret;
1483 avpkt.data += ret;
1484 avpkt.size -= ret;
1485 data_size = ret;
1486 got_output = decoded_data_size > 0;
1487 /* Some bug in mpeg audio decoder gives */
1488 /* decoded_data_size < 0, it seems they are overflows */
1489 if (!got_output) {
1490 /* no audio frame */
1491 continue;
1492 }
1493 decoded_data_buf = (uint8_t *)samples;
1494 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1495 (ist->st->codec->sample_rate * ist->st->codec->channels);
1496 break;}
1497 case AVMEDIA_TYPE_VIDEO:
1498 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1499 /* XXX: allocate picture correctly */
1500 avcodec_get_frame_defaults(&picture);
1501 avpkt.pts = pkt_pts;
1502 avpkt.dts = ist->pts;
1503 pkt_pts = AV_NOPTS_VALUE;
1504
1505 ret = avcodec_decode_video2(ist->st->codec,
1506 &picture, &got_output, &avpkt);
1507 quality = same_quant ? picture.quality : 0;
1508 if (ret < 0)
1509 return ret;
1510 if (!got_output) {
1511 /* no picture yet */
1512 goto discard_packet;
1513 }
1514 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1515 if (ist->st->codec->time_base.num != 0) {
1516 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1517 ist->next_pts += ((int64_t)AV_TIME_BASE *
1518 ist->st->codec->time_base.num * ticks) /
1519 ist->st->codec->time_base.den;
1520 }
1521 avpkt.size = 0;
1522 buffer_to_free = NULL;
1523 pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1524 break;
1525 case AVMEDIA_TYPE_SUBTITLE:
1526 ret = avcodec_decode_subtitle2(ist->st->codec,
1527 &subtitle, &got_output, &avpkt);
1528 if (ret < 0)
1529 return ret;
1530 if (!got_output) {
1531 goto discard_packet;
1532 }
1533 subtitle_to_free = &subtitle;
1534 avpkt.size = 0;
1535 break;
1536 default:
1537 return -1;
1538 }
1539 } else {
1540 switch(ist->st->codec->codec_type) {
1541 case AVMEDIA_TYPE_AUDIO:
1542 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1543 ist->st->codec->sample_rate;
1544 break;
1545 case AVMEDIA_TYPE_VIDEO:
1546 if (ist->st->codec->time_base.num != 0) {
1547 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1548 ist->next_pts += ((int64_t)AV_TIME_BASE *
1549 ist->st->codec->time_base.num * ticks) /
1550 ist->st->codec->time_base.den;
1551 }
1552 break;
1553 }
1554 ret = avpkt.size;
1555 avpkt.size = 0;
1556 }
1557
1558 // preprocess audio (volume)
1559 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1560 if (audio_volume != 256) {
1561 short *volp;
1562 volp = samples;
1563 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1564 int v = ((*volp) * audio_volume + 128) >> 8;
1565 if (v < -32768) v = -32768;
1566 if (v > 32767) v = 32767;
1567 *volp++ = v;
1568 }
1569 }
1570 }
1571
1572 /* frame rate emulation */
1573 if (rate_emu) {
1574 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1575 int64_t now = av_gettime() - ist->start;
1576 if (pts > now)
1577 usleep(pts - now);
1578 }
1579 /* if output time reached then transcode raw format,
1580 encode packets and output them */
1581 for (i = 0; i < nb_ostreams; i++) {
1582 OutputFile *of = &output_files[ost_table[i].file_index];
1583 int frame_size;
1584
1585 ost = &ost_table[i];
1586 if (ost->source_index != ist_index)
1587 continue;
1588
1589 if (of->start_time && ist->pts < of->start_time)
1590 continue;
1591
1592 if (of->recording_time != INT64_MAX &&
1593 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1594 (AVRational){1, 1000000}) >= 0) {
1595 ost->is_past_recording_time = 1;
1596 continue;
1597 }
1598
1599 #if CONFIG_AVFILTER
1600 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1601 ost->input_video_filter) {
1602 AVRational sar;
1603 if (ist->st->sample_aspect_ratio.num)
1604 sar = ist->st->sample_aspect_ratio;
1605 else
1606 sar = ist->st->codec->sample_aspect_ratio;
1607 av_vsrc_buffer_add_frame(ost->input_video_filter, &picture, ist->pts, sar);
1608 }
1609 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1610 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1611 while (frame_available) {
1612 AVRational ist_pts_tb;
1613 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1614 get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1615 if (ost->picref)
1616 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1617 #endif
1618 os = output_files[ost->file_index].ctx;
1619
1620 /* set the input output pts pairs */
1621 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1622
1623 if (ost->encoding_needed) {
1624 av_assert0(ist->decoding_needed);
1625 switch(ost->st->codec->codec_type) {
1626 case AVMEDIA_TYPE_AUDIO:
1627 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1628 break;
1629 case AVMEDIA_TYPE_VIDEO:
1630 #if CONFIG_AVFILTER
1631 if (ost->picref->video && !ost->frame_aspect_ratio)
1632 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1633 #endif
1634 do_video_out(os, ost, ist, &picture, &frame_size,
1635 same_quant ? quality : ost->st->codec->global_quality);
1636 if (vstats_filename && frame_size)
1637 do_video_stats(os, ost, frame_size);
1638 break;
1639 case AVMEDIA_TYPE_SUBTITLE:
1640 do_subtitle_out(os, ost, ist, &subtitle,
1641 pkt->pts);
1642 break;
1643 default:
1644 abort();
1645 }
1646 } else {
1647 AVFrame avframe; //FIXME/XXX remove this
1648 AVPacket opkt;
1649 int64_t ost_tb_start_time= av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1650
1651 av_init_packet(&opkt);
1652
1653 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1654 #if !CONFIG_AVFILTER
1655 continue;
1656 #else
1657 goto cont;
1658 #endif
1659
1660 /* no reencoding needed : output the packet directly */
1661 /* force the input stream PTS */
1662
1663 avcodec_get_frame_defaults(&avframe);
1664 ost->st->codec->coded_frame= &avframe;
1665 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1666
1667 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1668 audio_size += data_size;
1669 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1670 video_size += data_size;
1671 ost->sync_opts++;
1672 }
1673
1674 opkt.stream_index= ost->index;
1675 if(pkt->pts != AV_NOPTS_VALUE)
1676 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1677 else
1678 opkt.pts= AV_NOPTS_VALUE;
1679
1680 if (pkt->dts == AV_NOPTS_VALUE)
1681 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1682 else
1683 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1684 opkt.dts -= ost_tb_start_time;
1685
1686 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1687 opkt.flags= pkt->flags;
1688
1689 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1690 if( ost->st->codec->codec_id != CODEC_ID_H264
1691 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1692 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1693 ) {
1694 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1695 opkt.destruct= av_destruct_packet;
1696 } else {
1697 opkt.data = data_buf;
1698 opkt.size = data_size;
1699 }
1700
1701 write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1702 ost->st->codec->frame_number++;
1703 ost->frame_number++;
1704 av_free_packet(&opkt);
1705 }
1706 #if CONFIG_AVFILTER
1707 cont:
1708 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1709 ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1710 if (ost->picref)
1711 avfilter_unref_buffer(ost->picref);
1712 }
1713 #endif
1714 }
1715
1716 av_free(buffer_to_free);
1717 /* XXX: allocate the subtitles in the codec ? */
1718 if (subtitle_to_free) {
1719 avsubtitle_free(subtitle_to_free);
1720 subtitle_to_free = NULL;
1721 }
1722 }
1723 discard_packet:
1724 if (pkt == NULL) {
1725 /* EOF handling */
1726
1727 for(i=0;i<nb_ostreams;i++) {
1728 ost = &ost_table[i];
1729 if (ost->source_index == ist_index) {
1730 AVCodecContext *enc= ost->st->codec;
1731 os = output_files[ost->file_index].ctx;
1732
1733 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1734 continue;
1735 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1736 continue;
1737
1738 if (ost->encoding_needed) {
1739 for(;;) {
1740 AVPacket pkt;
1741 int fifo_bytes;
1742 av_init_packet(&pkt);
1743 pkt.stream_index= ost->index;
1744
1745 switch(ost->st->codec->codec_type) {
1746 case AVMEDIA_TYPE_AUDIO:
1747 fifo_bytes = av_fifo_size(ost->fifo);
1748 ret = 0;
1749 /* encode any samples remaining in fifo */
1750 if (fifo_bytes > 0) {
1751 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1752 int fs_tmp = enc->frame_size;
1753
1754 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1755 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1756 enc->frame_size = fifo_bytes / (osize * enc->channels);
1757 } else { /* pad */
1758 int frame_bytes = enc->frame_size*osize*enc->channels;
1759 if (allocated_audio_buf_size < frame_bytes)
1760 exit_program(1);
1761 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1762 }
1763
1764 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1765 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1766 ost->st->time_base.num, enc->sample_rate);
1767 enc->frame_size = fs_tmp;
1768 }
1769 if(ret <= 0) {
1770 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1771 }
1772 if (ret < 0) {
1773 fprintf(stderr, "Audio encoding failed\n");
1774 exit_program(1);
1775 }
1776 audio_size += ret;
1777 pkt.flags |= AV_PKT_FLAG_KEY;
1778 break;
1779 case AVMEDIA_TYPE_VIDEO:
1780 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1781 if (ret < 0) {
1782 fprintf(stderr, "Video encoding failed\n");
1783 exit_program(1);
1784 }
1785 video_size += ret;
1786 if(enc->coded_frame && enc->coded_frame->key_frame)
1787 pkt.flags |= AV_PKT_FLAG_KEY;
1788 if (ost->logfile && enc->stats_out) {
1789 fprintf(ost->logfile, "%s", enc->stats_out);
1790 }
1791 break;
1792 default:
1793 ret=-1;
1794 }
1795
1796 if(ret<=0)
1797 break;
1798 pkt.data= bit_buffer;
1799 pkt.size= ret;
1800 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1801 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1802 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1803 }
1804 }
1805 }
1806 }
1807 }
1808
1809 return 0;
1810 }
1811
1812 static void print_sdp(OutputFile *output_files, int n)
1813 {
1814 char sdp[2048];
1815 int i;
1816 AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
1817
1818 if (!avc)
1819 exit_program(1);
1820 for (i = 0; i < n; i++)
1821 avc[i] = output_files[i].ctx;
1822
1823 av_sdp_create(avc, n, sdp, sizeof(sdp));
1824 printf("SDP:\n%s\n", sdp);
1825 fflush(stdout);
1826 av_freep(&avc);
1827 }
1828
1829 /*
1830 * The following code is the main loop of the file converter
1831 */
1832 static int transcode(OutputFile *output_files,
1833 int nb_output_files,
1834 InputFile *input_files,
1835 int nb_input_files)
1836 {
1837 int ret = 0, i, j;
1838 AVFormatContext *is, *os;
1839 AVCodecContext *codec, *icodec;
1840 OutputStream *ost;
1841 InputStream *ist;
1842 char error[1024];
1843 int want_sdp = 1;
1844 uint8_t *no_packet;
1845 int no_packet_count=0;
1846
1847 if (!(no_packet = av_mallocz(nb_input_files)))
1848 exit_program(1);
1849
1850 if (rate_emu)
1851 for (i = 0; i < nb_input_streams; i++)
1852 input_streams[i].start = av_gettime();
1853
1854 /* output stream init */
1855 for(i=0;i<nb_output_files;i++) {
1856 os = output_files[i].ctx;
1857 if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1858 av_dump_format(os, i, os->filename, 1);
1859 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1860 ret = AVERROR(EINVAL);
1861 goto fail;
1862 }
1863 }
1864
1865 /* for each output stream, we compute the right encoding parameters */
1866 for (i = 0; i < nb_output_streams; i++) {
1867 ost = &output_streams[i];
1868 os = output_files[ost->file_index].ctx;
1869 ist = &input_streams[ost->source_index];
1870
1871 codec = ost->st->codec;
1872 icodec = ist->st->codec;
1873
1874 ost->st->disposition = ist->st->disposition;
1875 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1876 codec->chroma_sample_location = icodec->chroma_sample_location;
1877
1878 if (ost->st->stream_copy) {
1879 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1880
1881 if (extra_size > INT_MAX)
1882 goto fail;
1883
1884 /* if stream_copy is selected, no need to decode or encode */
1885 codec->codec_id = icodec->codec_id;
1886 codec->codec_type = icodec->codec_type;
1887
1888 if(!codec->codec_tag){
1889 if( !os->oformat->codec_tag
1890 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1891 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1892 codec->codec_tag = icodec->codec_tag;
1893 }
1894
1895 codec->bit_rate = icodec->bit_rate;
1896 codec->rc_max_rate = icodec->rc_max_rate;
1897 codec->rc_buffer_size = icodec->rc_buffer_size;
1898 codec->extradata= av_mallocz(extra_size);
1899 if (!codec->extradata)
1900 goto fail;
1901 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1902 codec->extradata_size= icodec->extradata_size;
1903 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){
1904 codec->time_base = icodec->time_base;
1905 codec->time_base.num *= icodec->ticks_per_frame;
1906 av_reduce(&codec->time_base.num, &codec->time_base.den,
1907 codec->time_base.num, codec->time_base.den, INT_MAX);
1908 }else
1909 codec->time_base = ist->st->time_base;
1910 switch(codec->codec_type) {
1911 case AVMEDIA_TYPE_AUDIO:
1912 if(audio_volume != 256) {
1913 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1914 exit_program(1);
1915 }
1916 codec->channel_layout = icodec->channel_layout;
1917 codec->sample_rate = icodec->sample_rate;
1918 codec->channels = icodec->channels;
1919 codec->frame_size = icodec->frame_size;
1920 codec->audio_service_type = icodec->audio_service_type;
1921 codec->block_align= icodec->block_align;
1922 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1923 codec->block_align= 0;
1924 if(codec->codec_id == CODEC_ID_AC3)
1925 codec->block_align= 0;
1926 break;
1927 case AVMEDIA_TYPE_VIDEO:
1928 codec->pix_fmt = icodec->pix_fmt;
1929 codec->width = icodec->width;
1930 codec->height = icodec->height;
1931 codec->has_b_frames = icodec->has_b_frames;
1932 if (!codec->sample_aspect_ratio.num) {
1933 codec->sample_aspect_ratio =
1934 ost->st->sample_aspect_ratio =
1935 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
1936 ist->st->codec->sample_aspect_ratio.num ?
1937 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
1938 }
1939 break;
1940 case AVMEDIA_TYPE_SUBTITLE:
1941 codec->width = icodec->width;
1942 codec->height = icodec->height;
1943 break;
1944 case AVMEDIA_TYPE_DATA:
1945 break;
1946 default:
1947 abort();
1948 }
1949 } else {
1950 if (!ost->enc)
1951 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
1952 switch(codec->codec_type) {
1953 case AVMEDIA_TYPE_AUDIO:
1954 ost->fifo= av_fifo_alloc(1024);
1955 if(!ost->fifo)
1956 goto fail;
1957 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
1958 if (!codec->sample_rate) {
1959 codec->sample_rate = icodec->sample_rate;
1960 if (icodec->lowres)
1961 codec->sample_rate >>= icodec->lowres;
1962 }
1963 choose_sample_rate(ost->st, ost->enc);
1964 codec->time_base = (AVRational){1, codec->sample_rate};
1965 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
1966 codec->sample_fmt = icodec->sample_fmt;
1967 choose_sample_fmt(ost->st, ost->enc);
1968 if (!codec->channels)
1969 codec->channels = icodec->channels;
1970 codec->channel_layout = icodec->channel_layout;
1971 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
1972 codec->channel_layout = 0;
1973 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
1974 icodec->request_channels = codec->channels;
1975 ist->decoding_needed = 1;
1976 ost->encoding_needed = 1;
1977 ost->resample_sample_fmt = icodec->sample_fmt;
1978 ost->resample_sample_rate = icodec->sample_rate;
1979 ost->resample_channels = icodec->channels;
1980 break;
1981 case AVMEDIA_TYPE_VIDEO:
1982 if (codec->pix_fmt == PIX_FMT_NONE)
1983 codec->pix_fmt = icodec->pix_fmt;
1984 choose_pixel_fmt(ost->st, ost->enc);
1985
1986 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
1987 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
1988 exit_program(1);
1989 }
1990
1991 if (!codec->width || !codec->height) {
1992 codec->width = icodec->width;
1993 codec->height = icodec->height;
1994 }
1995
1996 ost->video_resample = codec->width != icodec->width ||
1997 codec->height != icodec->height ||
1998 codec->pix_fmt != icodec->pix_fmt;
1999 if (ost->video_resample) {
2000 #if !CONFIG_AVFILTER
2001 avcodec_get_frame_defaults(&ost->pict_tmp);
2002 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2003 codec->width, codec->height)) {
2004 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2005 exit_program(1);
2006 }
2007 ost->img_resample_ctx = sws_getContext(
2008 icodec->width,
2009 icodec->height,
2010 icodec->pix_fmt,
2011 codec->width,
2012 codec->height,
2013 codec->pix_fmt,
2014 ost->sws_flags, NULL, NULL, NULL);
2015 if (ost->img_resample_ctx == NULL) {
2016 fprintf(stderr, "Cannot get resampling context\n");
2017 exit_program(1);
2018 }
2019 #endif
2020 codec->bits_per_raw_sample= 0;
2021 }
2022
2023 ost->resample_height = icodec->height;
2024 ost->resample_width = icodec->width;
2025 ost->resample_pix_fmt= icodec->pix_fmt;
2026 ost->encoding_needed = 1;
2027 ist->decoding_needed = 1;
2028
2029 if (!ost->frame_rate.num)
2030 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2031 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2032 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2033 ost->frame_rate = ost->enc->supported_framerates[idx];
2034 }
2035 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2036
2037 #if CONFIG_AVFILTER
2038 if (configure_video_filters(ist, ost)) {
2039 fprintf(stderr, "Error opening filters!\n");
2040 exit(1);
2041 }
2042 #endif
2043 break;
2044 case AVMEDIA_TYPE_SUBTITLE:
2045 ost->encoding_needed = 1;
2046 ist->decoding_needed = 1;
2047 break;
2048 default:
2049 abort();
2050 break;
2051 }
2052 /* two pass mode */
2053 if (ost->encoding_needed &&
2054 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2055 char logfilename[1024];
2056 FILE *f;
2057
2058 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2059 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2060 i);
2061 if (codec->flags & CODEC_FLAG_PASS1) {
2062 f = fopen(logfilename, "wb");
2063 if (!f) {
2064 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2065 exit_program(1);
2066 }
2067 ost->logfile = f;
2068 } else {
2069 char *logbuffer;
2070 size_t logbuffer_size;
2071 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2072 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2073 exit_program(1);
2074 }
2075 codec->stats_in = logbuffer;
2076 }
2077 }
2078 }
2079 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2080 int size= codec->width * codec->height;
2081 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2082 }
2083 }
2084
2085 if (!bit_buffer)
2086 bit_buffer = av_malloc(bit_buffer_size);
2087 if (!bit_buffer) {
2088 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2089 bit_buffer_size);
2090 ret = AVERROR(ENOMEM);
2091 goto fail;
2092 }
2093
2094 /* open each encoder */
2095 for (i = 0; i < nb_output_streams; i++) {
2096 ost = &output_streams[i];
2097 if (ost->encoding_needed) {
2098 AVCodec *codec = ost->enc;
2099 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2100 if (!codec) {
2101 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2102 ost->st->codec->codec_id, ost->file_index, ost->index);
2103 ret = AVERROR(EINVAL);
2104 goto dump_format;
2105 }
2106 if (dec->subtitle_header) {
2107 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2108 if (!ost->st->codec->subtitle_header) {
2109 ret = AVERROR(ENOMEM);
2110 goto dump_format;
2111 }
2112 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2113 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2114 }
2115 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2116 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2117 ost->file_index, ost->index);
2118 ret = AVERROR(EINVAL);
2119 goto dump_format;
2120 }
2121 assert_codec_experimental(ost->st->codec, 1);
2122 assert_avoptions(ost->opts);
2123 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2124 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2125 "It takes bits/s as argument, not kbits/s\n");
2126 extra_size += ost->st->codec->extradata_size;
2127 }
2128 }
2129
2130 /* open each decoder */
2131 for (i = 0; i < nb_input_streams; i++) {
2132 ist = &input_streams[i];
2133 if (ist->decoding_needed) {
2134 AVCodec *codec = ist->dec;
2135 if (!codec)
2136 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2137 if (!codec) {
2138 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2139 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2140 ret = AVERROR(EINVAL);
2141 goto dump_format;
2142 }
2143
2144 /* update requested sample format for the decoder based on the
2145 corresponding encoder sample format */
2146 for (j = 0; j < nb_output_streams; j++) {
2147 ost = &output_streams[j];
2148 if (ost->source_index == i) {
2149 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2150 break;
2151 }
2152 }
2153
2154 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2155 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2156 ist->file_index, ist->st->index);
2157 ret = AVERROR(EINVAL);
2158 goto dump_format;
2159 }
2160 assert_codec_experimental(ist->st->codec, 0);
2161 assert_avoptions(ost->opts);
2162 }
2163 }
2164
2165 /* init pts */
2166 for (i = 0; i < nb_input_streams; i++) {
2167 AVStream *st;
2168 ist = &input_streams[i];
2169 st= ist->st;
2170 ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2171 ist->next_pts = AV_NOPTS_VALUE;
2172 init_pts_correction(&ist->pts_ctx);
2173 ist->is_start = 1;
2174 }
2175
2176 /* open files and write file headers */
2177 for (i = 0; i < nb_output_files; i++) {
2178 os = output_files[i].ctx;
2179 if (avformat_write_header(os, &output_files[i].opts) < 0) {
2180 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2181 ret = AVERROR(EINVAL);
2182 goto dump_format;
2183 }
2184 assert_avoptions(output_files[i].opts);
2185 if (strcmp(os->oformat->name, "rtp")) {
2186 want_sdp = 0;
2187 }
2188 }
2189
2190 dump_format:
2191 /* dump the file output parameters - cannot be done before in case
2192 of stream copy */
2193 for(i=0;i<nb_output_files;i++) {
2194 av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2195 }
2196
2197 /* dump the stream mapping */
2198 if (verbose >= 0) {
2199 fprintf(stderr, "Stream mapping:\n");
2200 for (i = 0; i < nb_output_streams;i ++) {
2201 ost = &output_streams[i];
2202 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2203 input_streams[ost->source_index].file_index,
2204 input_streams[ost->source_index].st->index,
2205 ost->file_index,
2206 ost->index);
2207 if (ost->sync_ist != &input_streams[ost->source_index])
2208 fprintf(stderr, " [sync #%d.%d]",
2209 ost->sync_ist->file_index,
2210 ost->sync_ist->st->index);
2211 if (ost->st->stream_copy)
2212 fprintf(stderr, " (copy)");
2213 fprintf(stderr, "\n");
2214 }
2215 }
2216
2217 if (ret) {
2218 fprintf(stderr, "%s\n", error);
2219 goto fail;
2220 }
2221
2222 if (want_sdp) {
2223 print_sdp(output_files, nb_output_files);
2224 }
2225
2226 if (verbose >= 0)
2227 fprintf(stderr, "Press ctrl-c to stop encoding\n");
2228 term_init();
2229
2230 timer_start = av_gettime();
2231
2232 for(; received_sigterm == 0;) {
2233 int file_index, ist_index;
2234 AVPacket pkt;
2235 int64_t ipts_min;
2236 double opts_min;
2237
2238 redo:
2239 ipts_min = INT64_MAX;
2240 opts_min= 1e100;
2241
2242 /* select the stream that we must read now by looking at the
2243 smallest output pts */
2244 file_index = -1;
2245 for (i = 0; i < nb_output_streams; i++) {
2246 int64_t ipts;
2247 double opts;
2248 ost = &output_streams[i];
2249 os = output_files[ost->file_index].ctx;
2250 ist = &input_streams[ost->source_index];
2251 if(ost->is_past_recording_time || no_packet[ist->file_index])
2252 continue;
2253 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2254 ipts = ist->pts;
2255 if (!input_files[ist->file_index].eof_reached){
2256 if(ipts < ipts_min) {
2257 ipts_min = ipts;
2258 if(input_sync ) file_index = ist->file_index;
2259 }
2260 if(opts < opts_min) {
2261 opts_min = opts;
2262 if(!input_sync) file_index = ist->file_index;
2263 }
2264 }
2265 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2266 file_index= -1;
2267 break;
2268 }
2269 }
2270 /* if none, if is finished */
2271 if (file_index < 0) {
2272 if(no_packet_count){
2273 no_packet_count=0;
2274 memset(no_packet, 0, nb_input_files);
2275 usleep(10000);
2276 continue;
2277 }
2278 break;
2279 }
2280
2281 /* finish if limit size exhausted */
2282 if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0].ctx->pb))
2283 break;
2284
2285 /* read a frame from it and output it in the fifo */
2286 is = input_files[file_index].ctx;
2287 ret= av_read_frame(is, &pkt);
2288 if(ret == AVERROR(EAGAIN)){
2289 no_packet[file_index]=1;
2290 no_packet_count++;
2291 continue;
2292 }
2293 if (ret < 0) {
2294 input_files[file_index].eof_reached = 1;
2295 if (opt_shortest)
2296 break;
2297 else
2298 continue;
2299 }
2300
2301 no_packet_count=0;
2302 memset(no_packet, 0, nb_input_files);
2303
2304 if (do_pkt_dump) {
2305 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2306 is->streams[pkt.stream_index]);
2307 }
2308 /* the following test is needed in case new streams appear
2309 dynamically in stream : we ignore them */
2310 if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2311 goto discard_packet;
2312 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2313 ist = &input_streams[ist_index];
2314 if (ist->discard)
2315 goto discard_packet;
2316
2317 if (pkt.dts != AV_NOPTS_VALUE)
2318 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2319 if (pkt.pts != AV_NOPTS_VALUE)
2320 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2321
2322 if (ist->ts_scale) {
2323 if(pkt.pts != AV_NOPTS_VALUE)
2324 pkt.pts *= ist->ts_scale;
2325 if(pkt.dts != AV_NOPTS_VALUE)
2326 pkt.dts *= ist->ts_scale;
2327 }
2328
2329 // 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);
2330 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2331 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2332 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2333 int64_t delta= pkt_dts - ist->next_pts;
2334 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2335 input_files[ist->file_index].ts_offset -= delta;
2336 if (verbose > 2)
2337 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2338 delta, input_files[ist->file_index].ts_offset);
2339 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2340 if(pkt.pts != AV_NOPTS_VALUE)
2341 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2342 }
2343 }
2344
2345 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2346 if (output_packet(ist, ist_index, output_streams, nb_output_streams, &pkt) < 0) {
2347
2348 if (verbose >= 0)
2349 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2350 ist->file_index, ist->st->index);
2351 if (exit_on_error)
2352 exit_program(1);
2353 av_free_packet(&pkt);
2354 goto redo;
2355 }
2356
2357 discard_packet:
2358 av_free_packet(&pkt);
2359
2360 /* dump report by using the output first video and audio streams */
2361 print_report(output_files, output_streams, nb_output_streams, 0);
2362 }
2363
2364 /* at the end of stream, we must flush the decoder buffers */
2365 for (i = 0; i < nb_input_streams; i++) {
2366 ist = &input_streams[i];
2367 if (ist->decoding_needed) {
2368 output_packet(ist, i, output_streams, nb_output_streams, NULL);
2369 }
2370 }
2371
2372 term_exit();
2373
2374 /* write the trailer if needed and close file */
2375 for(i=0;i<nb_output_files;i++) {
2376 os = output_files[i].ctx;
2377 av_write_trailer(os);
2378 }
2379
2380 /* dump report by using the first video and audio streams */
2381 print_report(output_files, output_streams, nb_output_streams, 1);
2382
2383 /* close each encoder */
2384 for (i = 0; i < nb_output_streams; i++) {
2385 ost = &output_streams[i];
2386 if (ost->encoding_needed) {
2387 av_freep(&ost->st->codec->stats_in);
2388 avcodec_close(ost->st->codec);
2389 }
2390 #if CONFIG_AVFILTER
2391 avfilter_graph_free(&ost->graph);
2392 #endif
2393 }
2394
2395 /* close each decoder */
2396 for (i = 0; i < nb_input_streams; i++) {
2397 ist = &input_streams[i];
2398 if (ist->decoding_needed) {
2399 avcodec_close(ist->st->codec);
2400 }
2401 }
2402
2403 /* finished ! */
2404 ret = 0;
2405
2406 fail:
2407 av_freep(&bit_buffer);
2408 av_freep(&no_packet);
2409
2410 if (output_streams) {
2411 for (i = 0; i < nb_output_streams; i++) {
2412 ost = &output_streams[i];
2413 if (ost) {
2414 if (ost->st->stream_copy)
2415 av_freep(&ost->st->codec->extradata);
2416 if (ost->logfile) {
2417 fclose(ost->logfile);
2418 ost->logfile = NULL;
2419 }
2420 av_fifo_free(ost->fifo); /* works even if fifo is not
2421 initialized but set to zero */
2422 av_freep(&ost->st->codec->subtitle_header);
2423 av_free(ost->pict_tmp.data[0]);
2424 av_free(ost->forced_kf_pts);
2425 if (ost->video_resample)
2426 sws_freeContext(ost->img_resample_ctx);
2427 if (ost->resample)
2428 audio_resample_close(ost->resample);
2429 if (ost->reformat_ctx)
2430 av_audio_convert_free(ost->reformat_ctx);
2431 av_dict_free(&ost->opts);
2432 }
2433 }
2434 }
2435 return ret;
2436 }
2437
2438 static int opt_format(const char *opt, const char *arg)
2439 {
2440 last_asked_format = arg;
2441 return 0;
2442 }
2443
2444 static int opt_video_rc_override_string(const char *opt, const char *arg)
2445 {
2446 video_rc_override_string = arg;
2447 return 0;
2448 }
2449
2450 static int opt_me_threshold(const char *opt, const char *arg)
2451 {
2452 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2453 return 0;
2454 }
2455
2456 static int opt_verbose(const char *opt, const char *arg)
2457 {
2458 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2459 return 0;
2460 }
2461
2462 static int opt_frame_rate(const char *opt, const char *arg)
2463 {
2464 if (av_parse_video_rate(&frame_rate, arg) < 0) {
2465 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2466 exit_program(1);
2467 }
2468 return 0;
2469 }
2470
2471 static int opt_frame_crop(const char *opt, const char *arg)
2472 {
2473 fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2474 return AVERROR(EINVAL);
2475 }
2476
2477 static int opt_frame_size(const char *opt, const char *arg)
2478 {
2479 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2480 fprintf(stderr, "Incorrect frame size\n");
2481 return AVERROR(EINVAL);
2482 }
2483 return 0;
2484 }
2485
2486 static int opt_pad(const char *opt, const char *arg) {
2487 fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2488 return -1;
2489 }
2490
2491 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2492 {
2493 if (strcmp(arg, "list")) {
2494 frame_pix_fmt = av_get_pix_fmt(arg);
2495 if (frame_pix_fmt == PIX_FMT_NONE) {
2496 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2497 return AVERROR(EINVAL);
2498 }
2499 } else {
2500 show_pix_fmts();
2501 exit_program(0);
2502 }
2503 return 0;
2504 }
2505
2506 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2507 {
2508 int x = 0, y = 0;
2509 double ar = 0;
2510 const char *p;
2511 char *end;
2512
2513 p = strchr(arg, ':');
2514 if (p) {
2515 x = strtol(arg, &end, 10);
2516 if (end == p)
2517 y = strtol(end+1, &end, 10);
2518 if (x > 0 && y > 0)
2519 ar = (double)x / (double)y;
2520 } else
2521 ar = strtod(arg, NULL);
2522
2523 if (!ar) {
2524 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2525 return AVERROR(EINVAL);
2526 }
2527 frame_aspect_ratio = ar;
2528 return 0;
2529 }
2530
2531 static int opt_metadata(const char *opt, const char *arg)
2532 {
2533 char *mid= strchr(arg, '=');
2534
2535 if(!mid){
2536 fprintf(stderr, "Missing =\n");
2537 exit_program(1);
2538 }
2539 *mid++= 0;
2540
2541 av_dict_set(&metadata, arg, mid, 0);
2542
2543 return 0;
2544 }
2545
2546 static int opt_qscale(const char *opt, const char *arg)
2547 {
2548 video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2549 if (video_qscale == 0) {
2550 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2551 return AVERROR(EINVAL);
2552 }
2553 return 0;
2554 }
2555
2556 static int opt_top_field_first(const char *opt, const char *arg)
2557 {
2558 top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2559 return 0;
2560 }
2561
2562 static int opt_thread_count(const char *opt, const char *arg)
2563 {
2564 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2565 #if !HAVE_THREADS
2566 if (verbose >= 0)
2567 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2568 #endif
2569 return 0;
2570 }
2571
2572 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2573 {
2574 if (strcmp(arg, "list")) {
2575 audio_sample_fmt = av_get_sample_fmt(arg);
2576 if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2577 av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2578 return AVERROR(EINVAL);
2579 }
2580 } else {
2581 int i;
2582 char fmt_str[128];
2583 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2584 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2585 exit_program(0);
2586 }
2587 return 0;
2588 }
2589
2590 static int opt_audio_rate(const char *opt, const char *arg)
2591 {
2592 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2593 return 0;
2594 }
2595
2596 static int opt_audio_channels(const char *opt, const char *arg)
2597 {
2598 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2599 return 0;
2600 }
2601
2602 static int opt_codec(const char *opt, const char *arg)
2603 {
2604 return av_dict_set(&codec_names, opt, arg, 0);
2605 }
2606
2607 static int opt_audio_codec(const char *opt, const char *arg)
2608 {
2609 return opt_codec("codec:a", arg);
2610 }
2611
2612 static int opt_video_codec(const char *opt, const char *arg)
2613 {
2614 return opt_codec("codec:v", arg);
2615 }
2616
2617 static int opt_subtitle_codec(const char *opt, const char *arg)
2618 {
2619 return opt_codec("codec:s", arg);
2620 }
2621
2622 static int opt_data_codec(const char *opt, const char *arg)
2623 {
2624 return opt_codec("codec:d", arg);
2625 }
2626
2627 static int opt_codec_tag(const char *opt, const char *arg)
2628 {
2629 char *tail;
2630 uint32_t *codec_tag;
2631
2632 codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2633 !strcmp(opt, "vtag") ? &video_codec_tag :
2634 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2635 if (!codec_tag)
2636 return -1;
2637
2638 *codec_tag = strtol(arg, &tail, 0);
2639 if (!tail || *tail)
2640 *codec_tag = AV_RL32(arg);
2641
2642 return 0;
2643 }
2644
2645 static int opt_map(const char *opt, const char *arg)
2646 {
2647 StreamMap *m = NULL;
2648 int i, negative = 0, file_idx;
2649 int sync_file_idx = -1, sync_stream_idx;
2650 char *p, *sync;
2651 char *map;
2652
2653 if (*arg == '-') {
2654 negative = 1;
2655 arg++;
2656 }
2657 map = av_strdup(arg);
2658
2659 /* parse sync stream first, just pick first matching stream */
2660 if (sync = strchr(map, ',')) {
2661 *sync = 0;
2662 sync_file_idx = strtol(sync + 1, &sync, 0);
2663 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2664 av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2665 exit_program(1);
2666 }
2667 if (*sync)
2668 sync++;
2669 for (i = 0; i < input_files[sync_file_idx].ctx->nb_streams; i++)
2670 if (check_stream_specifier(input_files[sync_file_idx].ctx,
2671 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2672 sync_stream_idx = i;
2673 break;
2674 }
2675 if (i == input_files[sync_file_idx].ctx->nb_streams) {
2676 av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2677 "match any streams.\n", arg);
2678 exit_program(1);
2679 }
2680 }
2681
2682
2683 file_idx = strtol(map, &p, 0);
2684 if (file_idx >= nb_input_files || file_idx < 0) {
2685 av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2686 exit_program(1);
2687 }
2688 if (negative)
2689 /* disable some already defined maps */
2690 for (i = 0; i < nb_stream_maps; i++) {
2691 m = &stream_maps[i];
2692 if (check_stream_specifier(input_files[m->file_index].ctx,
2693 input_files[m->file_index].ctx->streams[m->stream_index],
2694 *p == ':' ? p + 1 : p) > 0)
2695 m->disabled = 1;
2696 }
2697 else
2698 for (i = 0; i < input_files[file_idx].ctx->nb_streams; i++) {
2699 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2700 *p == ':' ? p + 1 : p) <= 0)
2701 continue;
2702 stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2703 m = &stream_maps[nb_stream_maps - 1];
2704
2705 m->file_index = file_idx;
2706 m->stream_index = i;
2707
2708 if (sync_file_idx >= 0) {
2709 m->sync_file_index = sync_file_idx;
2710 m->sync_stream_index = sync_stream_idx;
2711 } else {
2712 m->sync_file_index = file_idx;
2713 m->sync_stream_index = i;
2714 }
2715 }
2716
2717 if (!m) {
2718 av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2719 exit_program(1);
2720 }
2721
2722 av_freep(&map);
2723 return 0;
2724 }
2725
2726 static void parse_meta_type(char *arg, char *type, int *index)
2727 {
2728 if (*arg == ':') {
2729 *type = *(++arg);
2730 switch (*arg) {
2731 case 'g':
2732 break;
2733 case 's':
2734 case 'c':
2735 case 'p':
2736 if (*(++arg) == ':')
2737 *index = strtol(++arg, NULL, 0);
2738 break;
2739 default:
2740 fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2741 exit_program(1);
2742 }
2743 } else
2744 *type = 'g';
2745 }
2746
2747 static int opt_map_metadata(const char *opt, const char *arg)
2748 {
2749 MetadataMap *m, *m1;
2750 char *p;
2751
2752 meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2753 &nb_meta_data_maps, nb_meta_data_maps + 1);
2754
2755 m = &meta_data_maps[nb_meta_data_maps - 1][1];
2756 m->file = strtol(arg, &p, 0);
2757 parse_meta_type(p, &m->type, &m->index);
2758
2759 m1 = &meta_data_maps[nb_meta_data_maps - 1][0];
2760 if (p = strchr(opt, ':'))
2761 parse_meta_type(p, &m1->type, &m1->index);
2762 else
2763 m1->type = 'g';
2764
2765 if (m->type == 'g' || m1->type == 'g')
2766 metadata_global_autocopy = 0;
2767 if (m->type == 's' || m1->type == 's')
2768 metadata_streams_autocopy = 0;
2769 if (m->type == 'c' || m1->type == 'c')
2770 metadata_chapters_autocopy = 0;
2771
2772 return 0;
2773 }
2774
2775 static int opt_input_ts_scale(const char *opt, const char *arg)
2776 {
2777 return av_dict_set(&ts_scale, opt, arg, 0);
2778 }
2779
2780 static int opt_recording_time(const char *opt, const char *arg)
2781 {
2782 recording_time = parse_time_or_die(opt, arg, 1);
2783 return 0;
2784 }
2785
2786 static int opt_start_time(const char *opt, const char *arg)
2787 {
2788 start_time = parse_time_or_die(opt, arg, 1);
2789 return 0;
2790 }
2791
2792 static int opt_input_ts_offset(const char *opt, const char *arg)
2793 {
2794 input_ts_offset = parse_time_or_die(opt, arg, 1);
2795 return 0;
2796 }
2797
2798 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2799 {
2800 const char *codec_string = encoder ? "encoder" : "decoder";
2801 AVCodec *codec;
2802
2803 if(!name)
2804 return CODEC_ID_NONE;
2805 codec = encoder ?
2806 avcodec_find_encoder_by_name(name) :
2807 avcodec_find_decoder_by_name(name);
2808 if(!codec) {
2809 av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2810 exit_program(1);
2811 }
2812 if(codec->type != type) {
2813 av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2814 exit_program(1);
2815 }
2816 return codec->id;
2817 }
2818
2819 static AVCodec *choose_codec(AVFormatContext *s, AVStream *st, enum AVMediaType type, AVDictionary *codec_names)
2820 {
2821 AVDictionaryEntry *e = NULL;
2822 char *codec_name = NULL;
2823 int ret;
2824
2825 while (e = av_dict_get(codec_names, "", e, AV_DICT_IGNORE_SUFFIX)) {
2826 char *p = strchr(e->key, ':');
2827
2828 if ((ret = check_stream_specifier(s, st, p ? p + 1 : "")) > 0)
2829 codec_name = e->value;
2830 else if (ret < 0)
2831 exit_program(1);
2832 }
2833
2834 if (!codec_name) {
2835 if (s->oformat) {
2836 st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
2837 return avcodec_find_encoder(st->codec->codec_id);
2838 }
2839 } else if (!strcmp(codec_name, "copy"))
2840 st->stream_copy = 1;
2841 else {
2842 st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
2843 return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
2844 avcodec_find_decoder_by_name(codec_name);
2845 }
2846
2847 return NULL;
2848 }
2849
2850 /**
2851 * Add all the streams from the given input file to the global
2852 * list of input streams.
2853 */
2854 static void add_input_streams(AVFormatContext *ic)
2855 {
2856 int i, rfps, rfps_base, ret;
2857
2858 for (i = 0; i < ic->nb_streams; i++) {
2859 AVStream *st = ic->streams[i];
2860 AVCodecContext *dec = st->codec;
2861 AVDictionaryEntry *e = NULL;
2862 InputStream *ist;
2863 char *scale = NULL;
2864
2865 dec->thread_count = thread_count;
2866
2867 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2868 ist = &input_streams[nb_input_streams - 1];
2869 ist->st = st;
2870 ist->file_index = nb_input_files;
2871 ist->discard = 1;
2872 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2873
2874 while (e = av_dict_get(ts_scale, "", e, AV_DICT_IGNORE_SUFFIX)) {
2875 char *p = strchr(e->key, ':');
2876
2877 if ((ret = check_stream_specifier(ic, st, p ? p + 1 : "")) > 0)
2878 scale = e->value;
2879 else if (ret < 0)
2880 exit_program(1);
2881 }
2882 if (scale)
2883 ist->ts_scale = strtod(scale, NULL);
2884
2885 ist->dec = choose_codec(ic, st, dec->codec_type, codec_names);
2886
2887 switch (dec->codec_type) {
2888 case AVMEDIA_TYPE_AUDIO:
2889 if(audio_disable)
2890 st->discard= AVDISCARD_ALL;
2891 break;
2892 case AVMEDIA_TYPE_VIDEO:
2893 rfps = ic->streams[i]->r_frame_rate.num;
2894 rfps_base = ic->streams[i]->r_frame_rate.den;
2895 if (dec->lowres) {
2896 dec->flags |= CODEC_FLAG_EMU_EDGE;
2897 dec->height >>= dec->lowres;
2898 dec->width >>= dec->lowres;
2899 }
2900 if(me_threshold)
2901 dec->debug |= FF_DEBUG_MV;
2902
2903 if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
2904
2905 if (verbose >= 0)
2906 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2907 i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
2908
2909 (float)rfps / rfps_base, rfps, rfps_base);
2910 }
2911
2912 if(video_disable)
2913 st->discard= AVDISCARD_ALL;
2914 else if(video_discard)
2915 st->discard= video_discard;
2916 break;
2917 case AVMEDIA_TYPE_DATA:
2918 break;
2919 case AVMEDIA_TYPE_SUBTITLE:
2920 if(subtitle_disable)
2921 st->discard = AVDISCARD_ALL;
2922 break;
2923 case AVMEDIA_TYPE_ATTACHMENT:
2924 case AVMEDIA_TYPE_UNKNOWN:
2925 break;
2926 default:
2927 abort();
2928 }
2929 }
2930 }
2931
2932 static int opt_input_file(const char *opt, const char *filename)
2933 {
2934 AVFormatContext *ic;
2935 AVInputFormat *file_iformat = NULL;
2936 int err, i, ret;
2937 int64_t timestamp;
2938 uint8_t buf[128];
2939 AVDictionary **opts;
2940 int orig_nb_streams; // number of streams before avformat_find_stream_info
2941
2942 if (last_asked_format) {
2943 if (!(file_iformat = av_find_input_format(last_asked_format))) {
2944 fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
2945 exit_program(1);
2946 }
2947 last_asked_format = NULL;
2948 }
2949
2950 if (!strcmp(filename, "-"))
2951 filename = "pipe:";
2952
2953 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2954 !strcmp(filename, "/dev/stdin");
2955
2956 /* get default parameters from command line */
2957 ic = avformat_alloc_context();
2958 if (!ic) {
2959 print_error(filename, AVERROR(ENOMEM));
2960 exit_program(1);
2961 }
2962 if (audio_sample_rate) {
2963 snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
2964 av_dict_set(&format_opts, "sample_rate", buf, 0);
2965 }
2966 if (audio_channels) {
2967 snprintf(buf, sizeof(buf), "%d", audio_channels);
2968 av_dict_set(&format_opts, "channels", buf, 0);
2969 }
2970 if (frame_rate.num) {
2971 snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
2972 av_dict_set(&format_opts, "framerate", buf, 0);
2973 }
2974 if (frame_width && frame_height) {
2975 snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
2976 av_dict_set(&format_opts, "video_size", buf, 0);
2977 }
2978 if (frame_pix_fmt != PIX_FMT_NONE)
2979 av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
2980
2981 ic->flags |= AVFMT_FLAG_NONBLOCK;
2982
2983 /* open the input file with generic libav function */
2984 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
2985 if (err < 0) {
2986 print_error(filename, err);
2987 exit_program(1);
2988 }
2989 assert_avoptions(format_opts);
2990
2991 if(opt_programid) {
2992 int i, j;
2993 int found=0;
2994 for(i=0; i<ic->nb_streams; i++){
2995 ic->streams[i]->discard= AVDISCARD_ALL;
2996 }
2997 for(i=0; i<ic->nb_programs; i++){
2998 AVProgram *p= ic->programs[i];
2999 if(p->id != opt_programid){
3000 p->discard = AVDISCARD_ALL;
3001 }else{
3002 found=1;
3003 for(j=0; j<p->nb_stream_indexes; j++){
3004 ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3005 }
3006 }
3007 }
3008 if(!found){
3009 fprintf(stderr, "Specified program id not found\n");
3010 exit_program(1);
3011 }
3012 opt_programid=0;
3013 }
3014
3015 /* apply forced codec ids */
3016 for (i = 0; i < ic->nb_streams; i++)
3017 choose_codec(ic, ic->streams[i], ic->streams[i]->codec->codec_type, codec_names);
3018
3019 /* Set AVCodecContext options for avformat_find_stream_info */
3020 opts = setup_find_stream_info_opts(ic, codec_opts);
3021 orig_nb_streams = ic->nb_streams;
3022
3023 /* If not enough info to get the stream parameters, we decode the
3024 first frames to get it. (used in mpeg case for example) */
3025 ret = avformat_find_stream_info(ic, opts);
3026 if (ret < 0 && verbose >= 0) {
3027 fprintf(stderr, "%s: could not find codec parameters\n", filename);
3028 av_close_input_file(ic);
3029 exit_program(1);
3030 }
3031
3032 timestamp = start_time;
3033 /* add the stream start time */
3034 if (ic->start_time != AV_NOPTS_VALUE)
3035 timestamp += ic->start_time;
3036
3037 /* if seeking requested, we execute it */
3038 if (start_time != 0) {
3039 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3040 if (ret < 0) {
3041 fprintf(stderr, "%s: could not seek to position %0.3f\n",
3042 filename, (double)timestamp / AV_TIME_BASE);
3043 }
3044 /* reset seek info */
3045 start_time = 0;
3046 }
3047
3048 /* update the current parameters so that they match the one of the input stream */
3049 add_input_streams(ic);
3050
3051 /* dump the file content */
3052 if (verbose >= 0)
3053 av_dump_format(ic, nb_input_files, filename, 0);
3054
3055 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3056 input_files[nb_input_files - 1].ctx = ic;
3057 input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
3058 input_files[nb_input_files - 1].ts_offset = input_ts_offset - (copy_ts ? 0 : timestamp);
3059
3060 frame_rate = (AVRational){0, 0};
3061 frame_pix_fmt = PIX_FMT_NONE;
3062 frame_height = 0;
3063 frame_width = 0;
3064 audio_sample_rate = 0;
3065 audio_channels = 0;
3066 audio_sample_fmt = AV_SAMPLE_FMT_NONE;
3067 av_dict_free(&ts_scale);
3068
3069 for (i = 0; i < orig_nb_streams; i++)
3070 av_dict_free(&opts[i]);
3071 av_freep(&opts);
3072 av_dict_free(&codec_names);
3073 uninit_opts();
3074 init_opts();
3075 return 0;
3076 }
3077
3078 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3079 AVCodecContext *avctx)
3080 {
3081 char *p;
3082 int n = 1, i;
3083 int64_t t;
3084
3085 for (p = kf; *p; p++)
3086 if (*p == ',')
3087 n++;
3088 ost->forced_kf_count = n;
3089 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3090 if (!ost->forced_kf_pts) {
3091 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3092 exit_program(1);
3093 }
3094 for (i = 0; i < n; i++) {
3095 p = i ? strchr(p, ',') + 1 : kf;
3096 t = parse_time_or_die("force_key_frames", p, 1);
3097 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3098 }
3099 }
3100
3101 static OutputStream *new_output_stream(AVFormatContext *oc, enum AVMediaType type)
3102 {
3103 OutputStream *ost;
3104 AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3105 int idx = oc->nb_streams - 1;
3106
3107 if (!st) {
3108 av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
3109 exit_program(1);
3110 }
3111
3112 output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3113 nb_output_streams + 1);
3114 ost = &output_streams[nb_output_streams - 1];
3115 ost->file_index = nb_output_files;
3116 ost->index = idx;
3117 ost->st = st;
3118 st->codec->codec_type = type;
3119 ost->enc = choose_codec(oc, st, type, codec_names);
3120 if (ost->enc) {
3121 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3122 }
3123
3124 avcodec_get_context_defaults3(st->codec, ost->enc);
3125 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3126
3127 ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
3128 return ost;
3129 }
3130
3131 static OutputStream *new_video_stream(AVFormatContext *oc)
3132 {
3133 AVStream *st;
3134 OutputStream *ost;
3135 AVCodecContext *video_enc;
3136
3137 ost = new_output_stream(oc, AVMEDIA_TYPE_VIDEO);
3138 st = ost->st;
3139 if (!st->stream_copy) {
3140 ost->frame_aspect_ratio = frame_aspect_ratio;
3141 frame_aspect_ratio = 0;
3142 #if CONFIG_AVFILTER
3143 ost->avfilter= vfilters;
3144 vfilters = NULL;
3145 #endif
3146 }
3147
3148 ost->bitstream_filters = video_bitstream_filters;
3149 video_bitstream_filters= NULL;
3150
3151 st->codec->thread_count= thread_count;
3152
3153 video_enc = st->codec;
3154
3155 if(video_codec_tag)
3156 video_enc->codec_tag= video_codec_tag;
3157
3158 if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3159 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3160 }
3161
3162 if (st->stream_copy) {
3163 video_enc->sample_aspect_ratio =
3164 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3165 } else {
3166 const char *p;
3167 int i;
3168
3169 if (frame_rate.num)
3170 ost->frame_rate = frame_rate;
3171
3172 video_enc->width = frame_width;
3173 video_enc->height = frame_height;
3174 video_enc->pix_fmt = frame_pix_fmt;
3175 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3176
3177 if (intra_only)
3178 video_enc->gop_size = 0;
3179 if (video_qscale || same_quant) {
3180 video_enc->flags |= CODEC_FLAG_QSCALE;
3181 video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3182 }
3183
3184 if(intra_matrix)
3185 video_enc->intra_matrix = intra_matrix;
3186 if(inter_matrix)
3187 video_enc->inter_matrix = inter_matrix;
3188
3189 p= video_rc_override_string;
3190 for(i=0; p; i++){
3191 int start, end, q;
3192 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3193 if(e!=3){
3194 fprintf(stderr, "error parsing rc_override\n");
3195 exit_program(1);
3196 }
3197 video_enc->rc_override=
3198 av_realloc(video_enc->rc_override,
3199 sizeof(RcOverride)*(i+1));
3200 video_enc->rc_override[i].start_frame= start;
3201 video_enc->rc_override[i].end_frame = end;
3202 if(q>0){
3203 video_enc->rc_override[i].qscale= q;
3204 video_enc->rc_override[i].quality_factor= 1.0;
3205 }
3206 else{
3207 video_enc->rc_override[i].qscale= 0;
3208 video_enc->rc_override[i].quality_factor= -q/100.0;
3209 }
3210 p= strchr(p, '/');
3211 if(p) p++;
3212 }
3213 video_enc->rc_override_count=i;
3214 if (!video_enc->rc_initial_buffer_occupancy)
3215 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3216 video_enc->me_threshold= me_threshold;
3217 video_enc->intra_dc_precision= intra_dc_precision - 8;
3218
3219 if (do_psnr)
3220 video_enc->flags|= CODEC_FLAG_PSNR;
3221
3222 /* two pass mode */
3223 if (do_pass) {
3224 if (do_pass == 1) {
3225 video_enc->flags |= CODEC_FLAG_PASS1;
3226 } else {
3227 video_enc->flags |= CODEC_FLAG_PASS2;
3228 }
3229 }
3230
3231 if (forced_key_frames)
3232 parse_forced_key_frames(forced_key_frames, ost, video_enc);
3233 }
3234 if (video_language) {
3235 av_dict_set(&st->metadata, "language", video_language, 0);
3236 av_freep(&video_language);
3237 }
3238
3239 /* reset some key parameters */
3240 video_disable = 0;
3241 av_freep(&forced_key_frames);
3242 frame_pix_fmt = PIX_FMT_NONE;
3243 return ost;
3244 }
3245
3246 static OutputStream *new_audio_stream(AVFormatContext *oc)
3247 {
3248 AVStream *st;
3249 OutputStream *ost;
3250 AVCodecContext *audio_enc;
3251
3252 ost = new_output_stream(oc, AVMEDIA_TYPE_AUDIO);
3253 st = ost->st;
3254
3255 ost->bitstream_filters = audio_bitstream_filters;
3256 audio_bitstream_filters= NULL;
3257
3258 st->codec->thread_count= thread_count;
3259
3260 audio_enc = st->codec;
3261 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3262
3263 if(audio_codec_tag)
3264 audio_enc->codec_tag= audio_codec_tag;
3265
3266 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3267 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3268 }
3269 if (!st->stream_copy) {
3270 if (audio_qscale > QSCALE_NONE) {
3271 audio_enc->flags |= CODEC_FLAG_QSCALE;
3272 audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3273 }
3274 if (audio_channels)
3275 audio_enc->channels = audio_channels;
3276 if (audio_sample_fmt != AV_SAMPLE_FMT_NONE)
3277 audio_enc->sample_fmt = audio_sample_fmt;
3278 if (audio_sample_rate)
3279 audio_enc->sample_rate = audio_sample_rate;
3280 }
3281 if (audio_language) {
3282 av_dict_set(&st->metadata, "language", audio_language, 0);
3283 av_freep(&audio_language);
3284 }
3285
3286 /* reset some key parameters */
3287 audio_disable = 0;
3288
3289 return ost;
3290 }
3291
3292 static OutputStream *new_data_stream(AVFormatContext *oc)
3293 {
3294 AVStream *st;
3295 OutputStream *ost;
3296 AVCodecContext *data_enc;
3297
3298 ost = new_output_stream(oc, AVMEDIA_TYPE_DATA);
3299 st = ost->st;
3300 data_enc = st->codec;
3301 if (!st->stream_copy) {
3302 fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3303 exit_program(1);
3304 }
3305
3306 if (data_codec_tag)
3307 data_enc->codec_tag= data_codec_tag;
3308
3309 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3310 data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3311 }
3312
3313 data_disable = 0;
3314 return ost;
3315 }
3316
3317 static OutputStream *new_subtitle_stream(AVFormatContext *oc)
3318 {
3319 AVStream *st;
3320 OutputStream *ost;
3321 AVCodecContext *subtitle_enc;
3322
3323 ost = new_output_stream(oc, AVMEDIA_TYPE_SUBTITLE);
3324 st = ost->st;
3325 subtitle_enc = st->codec;
3326
3327 ost->bitstream_filters = subtitle_bitstream_filters;
3328 subtitle_bitstream_filters= NULL;
3329
3330 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3331
3332 if(subtitle_codec_tag)
3333 subtitle_enc->codec_tag= subtitle_codec_tag;
3334
3335 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3336 subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3337 }
3338
3339 if (subtitle_language) {
3340 av_dict_set(&st->metadata, "language", subtitle_language, 0);
3341 av_freep(&subtitle_language);
3342 }
3343
3344 subtitle_disable = 0;
3345 return ost;
3346 }
3347
3348 /* arg format is "output-stream-index:streamid-value". */
3349 static int opt_streamid(const char *opt, const char *arg)
3350 {
3351 int idx;
3352 char *p;
3353 char idx_str[16];
3354
3355 av_strlcpy(idx_str, arg, sizeof(idx_str));
3356 p = strchr(idx_str, ':');
3357 if (!p) {
3358 fprintf(stderr,
3359 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3360 arg, opt);
3361 exit_program(1);
3362 }
3363 *p++ = '\0';
3364 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
3365 streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
3366 streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3367 return 0;
3368 }
3369
3370 static int copy_chapters(int infile, int outfile)
3371 {
3372 AVFormatContext *is = input_files[infile].ctx;
3373 AVFormatContext *os = output_files[outfile].ctx;
3374 int i;
3375
3376 for (i = 0; i < is->nb_chapters; i++) {
3377 AVChapter *in_ch = is->chapters[i], *out_ch;
3378 int64_t ts_off = av_rescale_q(start_time - input_files[infile].ts_offset,
3379 AV_TIME_BASE_Q, in_ch->time_base);
3380 int64_t rt = (recording_time == INT64_MAX) ? INT64_MAX :
3381 av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
3382
3383
3384 if (in_ch->end < ts_off)
3385 continue;
3386 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
3387 break;
3388
3389 out_ch = av_mallocz(sizeof(AVChapter));
3390 if (!out_ch)
3391 return AVERROR(ENOMEM);
3392
3393 out_ch->id = in_ch->id;
3394 out_ch->time_base = in_ch->time_base;
3395 out_ch->start = FFMAX(0, in_ch->start - ts_off);
3396 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
3397
3398 if (metadata_chapters_autocopy)
3399 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
3400
3401 os->nb_chapters++;
3402 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
3403 if (!os->chapters)
3404 return AVERROR(ENOMEM);
3405 os->chapters[os->nb_chapters - 1] = out_ch;
3406 }
3407 return 0;
3408 }
3409
3410 static int read_avserver_streams(AVFormatContext *s, const char *filename)
3411 {
3412 int i, err;
3413 AVFormatContext *ic = NULL;
3414
3415 err = avformat_open_input(&ic, filename, NULL, NULL);
3416 if (err < 0)
3417 return err;
3418 /* copy stream format */
3419 for(i=0;i<ic->nb_streams;i++) {
3420 AVStream *st;
3421 OutputStream *ost;
3422 AVCodec *codec;
3423
3424 codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
3425 ost = new_output_stream(s, codec->type);
3426 st = ost->st;
3427
3428 // FIXME: a more elegant solution is needed
3429 memcpy(st, ic->streams[i], sizeof(AVStream));
3430 st->info = NULL;
3431 avcodec_copy_context(st->codec, ic->streams[i]->codec);
3432
3433 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !st->stream_copy)
3434 choose_sample_fmt(st, codec);
3435 else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !st->stream_copy)
3436 choose_pixel_fmt(st, codec);
3437 }
3438
3439 av_close_input_file(ic);
3440 return 0;
3441 }
3442
3443 static void opt_output_file(const char *filename)
3444 {
3445 AVFormatContext *oc;
3446 int i, err;
3447 AVOutputFormat *file_oformat;
3448 OutputStream *ost;
3449 InputStream *ist;
3450
3451 if (!strcmp(filename, "-"))
3452 filename = "pipe:";
3453
3454 oc = avformat_alloc_context();
3455 if (!oc) {
3456 print_error(filename, AVERROR(ENOMEM));
3457 exit_program(1);
3458 }
3459
3460 if (last_asked_format) {
3461 file_oformat = av_guess_format(last_asked_format, NULL, NULL);
3462 if (!file_oformat) {
3463 fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", last_asked_format);
3464 exit_program(1);
3465 }
3466 last_asked_format = NULL;
3467 } else {
3468 file_oformat = av_guess_format(NULL, filename, NULL);
3469 if (!file_oformat) {
3470 fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3471 filename);
3472 exit_program(1);
3473 }
3474 }
3475
3476 oc->oformat = file_oformat;
3477 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3478
3479 if (!strcmp(file_oformat->name, "ffm") &&
3480 av_strstart(filename, "http:", NULL)) {
3481 /* special case for files sent to avserver: we get the stream
3482 parameters from avserver */
3483 int err = read_avserver_streams(oc, filename);
3484 if (err < 0) {
3485 print_error(filename, err);
3486 exit_program(1);
3487 }
3488 } else if (!nb_stream_maps) {
3489 /* pick the "best" stream of each type */
3490 #define NEW_STREAM(type, index)\
3491 if (index >= 0) {\
3492 ost = new_ ## type ## _stream(oc);\
3493 ost->source_index = index;\
3494 ost->sync_ist = &input_streams[index];\
3495 input_streams[index].discard = 0;\
3496 }
3497
3498 /* video: highest resolution */
3499 if (!video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
3500 int area = 0, idx = -1;
3501 for (i = 0; i < nb_input_streams; i++) {
3502 ist = &input_streams[i];
3503 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3504 ist->st->codec->width * ist->st->codec->height > area) {
3505 area = ist->st->codec->width * ist->st->codec->height;
3506 idx = i;
3507 }
3508 }
3509 NEW_STREAM(video, idx);
3510 }
3511
3512 /* audio: most channels */
3513 if (!audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
3514 int channels = 0, idx = -1;
3515 for (i = 0; i < nb_input_streams; i++) {
3516 ist = &input_streams[i];
3517 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
3518 ist->st->codec->channels > channels) {
3519 channels = ist->st->codec->channels;
3520 idx = i;
3521 }
3522 }
3523 NEW_STREAM(audio, idx);
3524 }
3525
3526 /* subtitles: pick first */
3527 if (!subtitle_disable && oc->oformat->subtitle_codec != CODEC_ID_NONE) {
3528 for (i = 0; i < nb_input_streams; i++)
3529 if (input_streams[i].st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3530 NEW_STREAM(subtitle, i);
3531 break;
3532 }
3533 }
3534 /* do something with data? */
3535 } else {
3536 for (i = 0; i < nb_stream_maps; i++) {
3537 StreamMap *map = &stream_maps[i];
3538
3539 if (map->disabled)
3540 continue;
3541
3542 ist = &input_streams[input_files[map->file_index].ist_index + map->stream_index];
3543 switch (ist->st->codec->codec_type) {
3544 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(oc); break;
3545 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(oc); break;
3546 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(oc); break;
3547 case AVMEDIA_TYPE_DATA: ost = new_data_stream(oc); break;
3548 default:
3549 av_log(NULL, AV_LOG_ERROR, "Cannot map stream #%d.%d - unsupported type.\n",
3550 map->file_index, map->stream_index);
3551 exit_program(1);
3552 }
3553
3554 ost->source_index = input_files[map->file_index].ist_index + map->stream_index;
3555 ost->sync_ist = &input_streams[input_files[map->sync_file_index].ist_index +
3556 map->sync_stream_index];
3557 ist->discard = 0;
3558 }
3559 }
3560
3561 av_dict_copy(&oc->metadata, metadata, 0);
3562 av_dict_free(&metadata);
3563
3564
3565 output_files = grow_array(output_files, sizeof(*output_files), &nb_output_files, nb_output_files + 1);
3566 output_files[nb_output_files - 1].ctx = oc;
3567 output_files[nb_output_files - 1].ost_index = nb_output_streams - oc->nb_streams;
3568 output_files[nb_output_files - 1].recording_time = recording_time;
3569 output_files[nb_output_files - 1].start_time = start_time;
3570 av_dict_copy(&output_files[nb_output_files - 1].opts, format_opts, 0);
3571
3572 /* check filename in case of an image number is expected */
3573 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3574 if (!av_filename_number_test(oc->filename)) {
3575 print_error(oc->filename, AVERROR(EINVAL));
3576 exit_program(1);
3577 }
3578 }
3579
3580 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
3581 /* test if it already exists to avoid loosing precious files */
3582 if (!file_overwrite &&
3583 (strchr(filename, ':') == NULL ||
3584 filename[1] == ':' ||
3585 av_strstart(filename, "file:", NULL))) {
3586 if (avio_check(filename, 0) == 0) {
3587 if (!using_stdin) {
3588 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3589 fflush(stderr);
3590 if (!read_yesno()) {
3591 fprintf(stderr, "Not overwriting - exiting\n");
3592 exit_program(1);
3593 }
3594 }
3595 else {
3596 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3597 exit_program(1);
3598 }
3599 }
3600 }
3601
3602 /* open the file */
3603 if ((err = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE)) < 0) {
3604 print_error(filename, err);
3605 exit_program(1);
3606 }
3607 }
3608
3609 oc->preload= (int)(mux_preload*AV_TIME_BASE);
3610 oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
3611 oc->flags |= AVFMT_FLAG_NONBLOCK;
3612
3613 /* copy chapters */
3614 if (chapters_input_file >= nb_input_files) {
3615 if (chapters_input_file == INT_MAX) {
3616 /* copy chapters from the first input file that has them*/
3617 chapters_input_file = -1;
3618 for (i = 0; i < nb_input_files; i++)
3619 if (input_files[i].ctx->nb_chapters) {
3620 chapters_input_file = i;
3621 break;
3622 }
3623 } else {
3624 av_log(NULL, AV_LOG_ERROR, "Invalid input file index %d in chapter mapping.\n",
3625 chapters_input_file);
3626 exit_program(1);
3627 }
3628 }
3629 if (chapters_input_file >= 0)
3630 copy_chapters(chapters_input_file, nb_output_files - 1);
3631
3632 /* copy metadata */
3633 for (i = 0; i < nb_meta_data_maps; i++) {
3634 AVFormatContext *files[2];
3635 AVDictionary **meta[2];
3636 int j;
3637
3638 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3639 if ((index) < 0 || (index) >= (nb_elems)) {\
3640 av_log(NULL, AV_LOG_ERROR, "Invalid %s index %d while processing metadata maps\n",\
3641 (desc), (index));\
3642 exit_program(1);\
3643 }
3644
3645 int in_file_index = meta_data_maps[i][1].file;
3646 if (in_file_index < 0)
3647 continue;
3648 METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
3649
3650 files[0] = oc;
3651 files[1] = input_files[in_file_index].ctx;
3652
3653 for (j = 0; j < 2; j++) {
3654 MetadataMap *map = &meta_data_maps[i][j];
3655
3656 switch (map->type) {
3657 case 'g':
3658 meta[j] = &files[j]->metadata;
3659 break;
3660 case 's':
3661 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
3662 meta[j] = &files[j]->streams[map->index]->metadata;
3663 break;
3664 case 'c':
3665 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
3666 meta[j] = &files[j]->chapters[map->index]->metadata;
3667 break;
3668 case 'p':
3669 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
3670 meta[j] = &files[j]->programs[map->index]->metadata;
3671 break;
3672 }
3673 }
3674
3675 av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
3676 }
3677