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