52b92f80c728d0f0a410d10bd051fb71caa30be9
[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 /* indexed by output file stream index */
101 static int *streamid_map = NULL;
102 static int nb_streamid_map = 0;
103
104 static int frame_width = 0;
105 static int frame_height = 0;
106 static float frame_aspect_ratio = 0;
107 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
108 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
109 static AVRational frame_rate;
110 static float video_qscale = 0;
111 static uint16_t *intra_matrix = NULL;
112 static uint16_t *inter_matrix = NULL;
113 static const char *video_rc_override_string=NULL;
114 static int video_disable = 0;
115 static int video_discard = 0;
116 static unsigned int video_codec_tag = 0;
117 static char *video_language = NULL;
118 static int same_quant = 0;
119 static int do_deinterlace = 0;
120 static int top_field_first = -1;
121 static int me_threshold = 0;
122 static int intra_dc_precision = 8;
123 static int qp_hist = 0;
124 #if CONFIG_AVFILTER
125 static char *vfilters = NULL;
126 #endif
127
128 static int audio_sample_rate = 0;
129 #define QSCALE_NONE -99999
130 static float audio_qscale = QSCALE_NONE;
131 static int audio_disable = 0;
132 static int audio_channels = 0;
133 static unsigned int audio_codec_tag = 0;
134 static char *audio_language = NULL;
135
136 static int subtitle_disable = 0;
137 static char *subtitle_language = NULL;
138 static unsigned int subtitle_codec_tag = 0;
139
140 static int data_disable = 0;
141 static unsigned int data_codec_tag = 0;
142
143 static float mux_preload= 0.5;
144 static float mux_max_delay= 0.7;
145
146 static int file_overwrite = 0;
147 static int do_benchmark = 0;
148 static int do_hex_dump = 0;
149 static int do_pkt_dump = 0;
150 static int do_psnr = 0;
151 static int do_pass = 0;
152 static char *pass_logfilename_prefix = NULL;
153 static int video_sync_method= -1;
154 static int audio_sync_method= 0;
155 static float audio_drift_threshold= 0.1;
156 static int copy_ts= 0;
157 static int copy_tb;
158 static int opt_shortest = 0;
159 static char *vstats_filename;
160 static FILE *vstats_file;
161 static int opt_programid = 0;
162 static int copy_initial_nonkeyframes = 0;
163
164 static int audio_volume = 256;
165
166 static int exit_on_error = 0;
167 static int using_stdin = 0;
168 static int verbose = 1;
169 static int64_t video_size = 0;
170 static int64_t audio_size = 0;
171 static int64_t extra_size = 0;
172 static int nb_frames_dup = 0;
173 static int nb_frames_drop = 0;
174 static int input_sync;
175 static int force_fps = 0;
176 static char *forced_key_frames = NULL;
177
178 static float dts_delta_threshold = 10;
179
180 static uint8_t *audio_buf;
181 static uint8_t *audio_out;
182 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
183
184 static short *samples;
185
186 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
187
188 typedef struct InputStream {
189 int file_index;
190 AVStream *st;
191 int discard; /* true if stream data should be discarded */
192 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
193 AVCodec *dec;
194
195 int64_t start; /* time when read started */
196 int64_t next_pts; /* synthetic pts for cases where pkt.pts
197 is not defined */
198 int64_t pts; /* current pts */
199 PtsCorrectionContext pts_ctx;
200 double ts_scale;
201 int is_start; /* is 1 at the start and after a discontinuity */
202 int showed_multi_packet_warning;
203 AVDictionary *opts;
204 } InputStream;
205
206 typedef struct InputFile {
207 AVFormatContext *ctx;
208 int eof_reached; /* true if eof reached */
209 int ist_index; /* index of first stream in ist_table */
210 int buffer_size; /* current total buffer size */
211 int64_t ts_offset;
212 int nb_streams; /* number of stream that avconv is aware of; may be different
213 from ctx.nb_streams if new streams appear during av_read_frame() */
214 int rate_emu;
215 } InputFile;
216
217 typedef struct OutputStream {
218 int file_index; /* file index */
219 int index; /* stream index in the output file */
220 int source_index; /* InputStream index */
221 AVStream *st; /* stream in the output file */
222 int encoding_needed; /* true if encoding needed for this stream */
223 int frame_number;
224 /* input pts and corresponding output pts
225 for A/V sync */
226 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
227 struct InputStream *sync_ist; /* input stream to sync against */
228 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
229 AVBitStreamFilterContext *bitstream_filters;
230 AVCodec *enc;
231 int64_t max_frames;
232
233 /* video only */
234 int video_resample;
235 AVFrame pict_tmp; /* temporary image for resampling */
236 struct SwsContext *img_resample_ctx; /* for image resampling */
237 int resample_height;
238 int resample_width;
239 int resample_pix_fmt;
240 AVRational frame_rate;
241
242 float frame_aspect_ratio;
243
244 /* forced key frames */
245 int64_t *forced_kf_pts;
246 int forced_kf_count;
247 int forced_kf_index;
248
249 /* audio only */
250 int audio_resample;
251 ReSampleContext *resample; /* for audio resampling */
252 int resample_sample_fmt;
253 int resample_channels;
254 int resample_sample_rate;
255 int reformat_pair;
256 AVAudioConvert *reformat_ctx;
257 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
258 FILE *logfile;
259
260 #if CONFIG_AVFILTER
261 AVFilterContext *output_video_filter;
262 AVFilterContext *input_video_filter;
263 AVFilterBufferRef *picref;
264 char *avfilter;
265 AVFilterGraph *graph;
266 #endif
267
268 int sws_flags;
269 AVDictionary *opts;
270 int is_past_recording_time;
271 } OutputStream;
272
273
274 typedef struct OutputFile {
275 AVFormatContext *ctx;
276 AVDictionary *opts;
277 int ost_index; /* index of the first stream in output_streams */
278 int64_t recording_time; /* desired length of the resulting file in microseconds */
279 int64_t start_time; /* start time in microseconds */
280 uint64_t limit_filesize;
281 } OutputFile;
282
283 static InputStream *input_streams = NULL;
284 static int nb_input_streams = 0;
285 static InputFile *input_files = NULL;
286 static int nb_input_files = 0;
287
288 static OutputStream *output_streams = NULL;
289 static int nb_output_streams = 0;
290 static OutputFile *output_files = NULL;
291 static int nb_output_files = 0;
292
293 typedef struct OptionsContext {
294 /* input/output options */
295 int64_t start_time;
296 const char *format;
297
298 SpecifierOpt *codec_names;
299 int nb_codec_names;
300
301 /* input options */
302 int64_t input_ts_offset;
303 int rate_emu;
304
305 SpecifierOpt *ts_scale;
306 int nb_ts_scale;
307
308 /* output options */
309 StreamMap *stream_maps;
310 int nb_stream_maps;
311 /* first item specifies output metadata, second is input */
312 MetadataMap (*meta_data_maps)[2];
313 int nb_meta_data_maps;
314 int metadata_global_manual;
315 int metadata_streams_manual;
316 int metadata_chapters_manual;
317
318 int chapters_input_file;
319
320 int64_t recording_time;
321 uint64_t limit_filesize;
322
323 SpecifierOpt *metadata;
324 int nb_metadata;
325 SpecifierOpt *max_frames;
326 int nb_max_frames;
327 SpecifierOpt *bitstream_filters;
328 int nb_bitstream_filters;
329 } OptionsContext;
330
331 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
332 {\
333 int i, ret;\
334 for (i = 0; i < o->nb_ ## name; i++) {\
335 char *spec = o->name[i].specifier;\
336 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
337 outvar = o->name[i].u.type;\
338 else if (ret < 0)\
339 exit_program(1);\
340 }\
341 }
342
343 static void reset_options(OptionsContext *o)
344 {
345 const OptionDef *po = options;
346
347 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
348 while (po->name) {
349 void *dst = (uint8_t*)o + po->u.off;
350
351 if (po->flags & OPT_SPEC) {
352 SpecifierOpt **so = dst;
353 int i, *count = (int*)(so + 1);
354 for (i = 0; i < *count; i++) {
355 av_freep(&(*so)[i].specifier);
356 if (po->flags & OPT_STRING)
357 av_freep(&(*so)[i].u.str);
358 }
359 av_freep(so);
360 *count = 0;
361 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
362 av_freep(dst);
363 po++;
364 }
365
366 av_freep(&o->stream_maps);
367 av_freep(&o->meta_data_maps);
368
369 memset(o, 0, sizeof(*o));
370
371 o->recording_time = INT64_MAX;
372 o->limit_filesize = UINT64_MAX;
373 o->chapters_input_file = INT_MAX;
374
375 uninit_opts();
376 init_opts();
377 }
378
379 #if CONFIG_AVFILTER
380
381 static int configure_video_filters(InputStream *ist, OutputStream *ost)
382 {
383 AVFilterContext *last_filter, *filter;
384 /** filter graph containing all filters including input & output */
385 AVCodecContext *codec = ost->st->codec;
386 AVCodecContext *icodec = ist->st->codec;
387 FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
388 AVRational sample_aspect_ratio;
389 char args[255];
390 int ret;
391
392 ost->graph = avfilter_graph_alloc();
393
394 if (ist->st->sample_aspect_ratio.num){
395 sample_aspect_ratio = ist->st->sample_aspect_ratio;
396 }else
397 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
398
399 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
400 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
401 sample_aspect_ratio.num, sample_aspect_ratio.den);
402
403 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
404 "src", args, NULL, ost->graph);
405 if (ret < 0)
406 return ret;
407 ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
408 "out", NULL, &ffsink_ctx, ost->graph);
409 if (ret < 0)
410 return ret;
411 last_filter = ost->input_video_filter;
412
413 if (codec->width != icodec->width || codec->height != icodec->height) {
414 snprintf(args, 255, "%d:%d:flags=0x%X",
415 codec->width,
416 codec->height,
417 ost->sws_flags);
418 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
419 NULL, args, NULL, ost->graph)) < 0)
420 return ret;
421 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
422 return ret;
423 last_filter = filter;
424 }
425
426 snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
427 ost->graph->scale_sws_opts = av_strdup(args);
428
429 if (ost->avfilter) {
430 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
431 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
432
433 outputs->name = av_strdup("in");
434 outputs->filter_ctx = last_filter;
435 outputs->pad_idx = 0;
436 outputs->next = NULL;
437
438 inputs->name = av_strdup("out");
439 inputs->filter_ctx = ost->output_video_filter;
440 inputs->pad_idx = 0;
441 inputs->next = NULL;
442
443 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
444 return ret;
445 av_freep(&ost->avfilter);
446 } else {
447 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
448 return ret;
449 }
450
451 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
452 return ret;
453
454 codec->width = ost->output_video_filter->inputs[0]->w;
455 codec->height = ost->output_video_filter->inputs[0]->h;
456 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
457 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
458 av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
459 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
460
461 return 0;
462 }
463 #endif /* CONFIG_AVFILTER */
464
465 static void term_exit(void)
466 {
467 av_log(NULL, AV_LOG_QUIET, "");
468 }
469
470 static volatile int received_sigterm = 0;
471 static volatile int received_nb_signals = 0;
472
473 static void
474 sigterm_handler(int sig)
475 {
476 received_sigterm = sig;
477 received_nb_signals++;
478 term_exit();
479 }
480
481 static void term_init(void)
482 {
483 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
484 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
485 #ifdef SIGXCPU
486 signal(SIGXCPU, sigterm_handler);
487 #endif
488 }
489
490 static int decode_interrupt_cb(void)
491 {
492 return received_nb_signals > 1;
493 }
494
495 void exit_program(int ret)
496 {
497 int i;
498
499 /* close files */
500 for(i=0;i<nb_output_files;i++) {
501 AVFormatContext *s = output_files[i].ctx;
502 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
503 avio_close(s->pb);
504 avformat_free_context(s);
505 av_dict_free(&output_files[i].opts);
506 }
507 for(i=0;i<nb_input_files;i++) {
508 av_close_input_file(input_files[i].ctx);
509 }
510 for (i = 0; i < nb_input_streams; i++)
511 av_dict_free(&input_streams[i].opts);
512
513 av_free(intra_matrix);
514 av_free(inter_matrix);
515
516 if (vstats_file)
517 fclose(vstats_file);
518 av_free(vstats_filename);
519
520 av_freep(&input_streams);
521 av_freep(&input_files);
522 av_freep(&output_streams);
523 av_freep(&output_files);
524
525 uninit_opts();
526 av_free(audio_buf);
527 av_free(audio_out);
528 allocated_audio_buf_size= allocated_audio_out_size= 0;
529 av_free(samples);
530
531 #if CONFIG_AVFILTER
532 avfilter_uninit();
533 #endif
534
535 if (received_sigterm) {
536 fprintf(stderr,
537 "Received signal %d: terminating.\n",
538 (int) received_sigterm);
539 exit (255);
540 }
541
542 exit(ret); /* not all OS-es handle main() return value */
543 }
544
545 static void assert_avoptions(AVDictionary *m)
546 {
547 AVDictionaryEntry *t;
548 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
549 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
550 exit_program(1);
551 }
552 }
553
554 static void assert_codec_experimental(AVCodecContext *c, int encoder)
555 {
556 const char *codec_string = encoder ? "encoder" : "decoder";
557 AVCodec *codec;
558 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
559 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
560 av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
561 "results.\nAdd '-strict experimental' if you want to use it.\n",
562 codec_string, c->codec->name);
563 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
564 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
565 av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
566 codec_string, codec->name);
567 exit_program(1);
568 }
569 }
570
571 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
572 {
573 if(codec && codec->sample_fmts){
574 const enum AVSampleFormat *p= codec->sample_fmts;
575 for(; *p!=-1; p++){
576 if(*p == st->codec->sample_fmt)
577 break;
578 }
579 if (*p == -1) {
580 av_log(NULL, AV_LOG_WARNING,
581 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
582 av_get_sample_fmt_name(st->codec->sample_fmt),
583 codec->name,
584 av_get_sample_fmt_name(codec->sample_fmts[0]));
585 st->codec->sample_fmt = codec->sample_fmts[0];
586 }
587 }
588 }
589
590 /**
591 * Update the requested input sample format based on the output sample format.
592 * This is currently only used to request float output from decoders which
593 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
594 * Ideally this will be removed in the future when decoders do not do format
595 * conversion and only output in their native format.
596 */
597 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
598 AVCodecContext *enc)
599 {
600 /* if sample formats match or a decoder sample format has already been
601 requested, just return */
602 if (enc->sample_fmt == dec->sample_fmt ||
603 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
604 return;
605
606 /* if decoder supports more than one output format */
607 if (dec_codec && dec_codec->sample_fmts &&
608 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
609 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
610 const enum AVSampleFormat *p;
611 int min_dec = -1, min_inc = -1;
612
613 /* find a matching sample format in the encoder */
614 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
615 if (*p == enc->sample_fmt) {
616 dec->request_sample_fmt = *p;
617 return;
618 } else if (*p > enc->sample_fmt) {
619 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
620 } else
621 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
622 }
623
624 /* if none match, provide the one that matches quality closest */
625 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
626 enc->sample_fmt - min_dec;
627 }
628 }
629
630 static void choose_sample_rate(AVStream *st, AVCodec *codec)
631 {
632 if(codec && codec->supported_samplerates){
633 const int *p= codec->supported_samplerates;
634 int best=0;
635 int best_dist=INT_MAX;
636 for(; *p; p++){
637 int dist= abs(st->codec->sample_rate - *p);
638 if(dist < best_dist){
639 best_dist= dist;
640 best= *p;
641 }
642 }
643 if(best_dist){
644 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
645 }
646 st->codec->sample_rate= best;
647 }
648 }
649
650 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
651 {
652 if(codec && codec->pix_fmts){
653 const enum PixelFormat *p= codec->pix_fmts;
654 if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
655 if(st->codec->codec_id==CODEC_ID_MJPEG){
656 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
657 }else if(st->codec->codec_id==CODEC_ID_LJPEG){
658 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};
659 }
660 }
661 for(; *p!=-1; p++){
662 if(*p == st->codec->pix_fmt)
663 break;
664 }
665 if (*p == -1) {
666 if(st->codec->pix_fmt != PIX_FMT_NONE)
667 av_log(NULL, AV_LOG_WARNING,
668 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
669 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
670 codec->name,
671 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
672 st->codec->pix_fmt = codec->pix_fmts[0];
673 }
674 }
675 }
676
677 static double
678 get_sync_ipts(const OutputStream *ost)
679 {
680 const InputStream *ist = ost->sync_ist;
681 OutputFile *of = &output_files[ost->file_index];
682 return (double)(ist->pts - of->start_time)/AV_TIME_BASE;
683 }
684
685 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
686 int ret;
687
688 while(bsfc){
689 AVPacket new_pkt= *pkt;
690 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
691 &new_pkt.data, &new_pkt.size,
692 pkt->data, pkt->size,
693 pkt->flags & AV_PKT_FLAG_KEY);
694 if(a>0){
695 av_free_packet(pkt);
696 new_pkt.destruct= av_destruct_packet;
697 } else if(a<0){
698 fprintf(stderr, "%s failed for stream %d, codec %s",
699 bsfc->filter->name, pkt->stream_index,
700 avctx->codec ? avctx->codec->name : "copy");
701 print_error("", a);
702 if (exit_on_error)
703 exit_program(1);
704 }
705 *pkt= new_pkt;
706
707 bsfc= bsfc->next;
708 }
709
710 ret= av_interleaved_write_frame(s, pkt);
711 if(ret < 0){
712 print_error("av_interleaved_write_frame()", ret);
713 exit_program(1);
714 }
715 }
716
717 static void do_audio_out(AVFormatContext *s,
718 OutputStream *ost,
719 InputStream *ist,
720 unsigned char *buf, int size)
721 {
722 uint8_t *buftmp;
723 int64_t audio_out_size, audio_buf_size;
724 int64_t allocated_for_size= size;
725
726 int size_out, frame_bytes, ret, resample_changed;
727 AVCodecContext *enc= ost->st->codec;
728 AVCodecContext *dec= ist->st->codec;
729 int osize = av_get_bytes_per_sample(enc->sample_fmt);
730 int isize = av_get_bytes_per_sample(dec->sample_fmt);
731 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
732
733 need_realloc:
734 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
735 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
736 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
737 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
738 audio_buf_size*= osize*enc->channels;
739
740 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
741 if(coded_bps > 8*osize)
742 audio_out_size= audio_out_size * coded_bps / (8*osize);
743 audio_out_size += FF_MIN_BUFFER_SIZE;
744
745 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
746 fprintf(stderr, "Buffer sizes too large\n");
747 exit_program(1);
748 }
749
750 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
751 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
752 if (!audio_buf || !audio_out){
753 fprintf(stderr, "Out of memory in do_audio_out\n");
754 exit_program(1);
755 }
756
757 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
758 ost->audio_resample = 1;
759
760 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
761 ost->resample_channels != dec->channels ||
762 ost->resample_sample_rate != dec->sample_rate;
763
764 if ((ost->audio_resample && !ost->resample) || resample_changed) {
765 if (resample_changed) {
766 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",
767 ist->file_index, ist->st->index,
768 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
769 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
770 ost->resample_sample_fmt = dec->sample_fmt;
771 ost->resample_channels = dec->channels;
772 ost->resample_sample_rate = dec->sample_rate;
773 if (ost->resample)
774 audio_resample_close(ost->resample);
775 }
776 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
777 if (audio_sync_method <= 1 &&
778 ost->resample_sample_fmt == enc->sample_fmt &&
779 ost->resample_channels == enc->channels &&
780 ost->resample_sample_rate == enc->sample_rate) {
781 ost->resample = NULL;
782 ost->audio_resample = 0;
783 } else if (ost->audio_resample) {
784 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
785 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
786 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
787 enc->sample_rate, dec->sample_rate,
788 enc->sample_fmt, dec->sample_fmt,
789 16, 10, 0, 0.8);
790 if (!ost->resample) {
791 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
792 dec->channels, dec->sample_rate,
793 enc->channels, enc->sample_rate);
794 exit_program(1);
795 }
796 }
797 }
798
799 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
800 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
801 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
802 if (ost->reformat_ctx)
803 av_audio_convert_free(ost->reformat_ctx);
804 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
805 dec->sample_fmt, 1, NULL, 0);
806 if (!ost->reformat_ctx) {
807 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
808 av_get_sample_fmt_name(dec->sample_fmt),
809 av_get_sample_fmt_name(enc->sample_fmt));
810 exit_program(1);
811 }
812 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
813 }
814
815 if(audio_sync_method){
816 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
817 - av_fifo_size(ost->fifo)/(enc->channels * 2);
818 double idelta= delta*dec->sample_rate / enc->sample_rate;
819 int byte_delta= ((int)idelta)*2*dec->channels;
820
821 //FIXME resample delay
822 if(fabs(delta) > 50){
823 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
824 if(byte_delta < 0){
825 byte_delta= FFMAX(byte_delta, -size);
826 size += byte_delta;
827 buf -= byte_delta;
828 if(verbose > 2)
829 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
830 if(!size)
831 return;
832 ist->is_start=0;
833 }else{
834 static uint8_t *input_tmp= NULL;
835 input_tmp= av_realloc(input_tmp, byte_delta + size);
836
837 if(byte_delta > allocated_for_size - size){
838 allocated_for_size= byte_delta + (int64_t)size;
839 goto need_realloc;
840 }
841 ist->is_start=0;
842
843 memset(input_tmp, 0, byte_delta);
844 memcpy(input_tmp + byte_delta, buf, size);
845 buf= input_tmp;
846 size += byte_delta;
847 if(verbose > 2)
848 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
849 }
850 }else if(audio_sync_method>1){
851 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
852 av_assert0(ost->audio_resample);
853 if(verbose > 2)
854 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
855 // 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));
856 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
857 }
858 }
859 }else
860 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
861 - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
862
863 if (ost->audio_resample) {
864 buftmp = audio_buf;
865 size_out = audio_resample(ost->resample,
866 (short *)buftmp, (short *)buf,
867 size / (dec->channels * isize));
868 size_out = size_out * enc->channels * osize;
869 } else {
870 buftmp = buf;
871 size_out = size;
872 }
873
874 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
875 const void *ibuf[6]= {buftmp};
876 void *obuf[6]= {audio_buf};
877 int istride[6]= {isize};
878 int ostride[6]= {osize};
879 int len= size_out/istride[0];
880 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
881 printf("av_audio_convert() failed\n");
882 if (exit_on_error)
883 exit_program(1);
884 return;
885 }
886 buftmp = audio_buf;
887 size_out = len*osize;
888 }
889
890 /* now encode as many frames as possible */
891 if (enc->frame_size > 1) {
892 /* output resampled raw samples */
893 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
894 fprintf(stderr, "av_fifo_realloc2() failed\n");
895 exit_program(1);
896 }
897 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
898
899 frame_bytes = enc->frame_size * osize * enc->channels;
900
901 while (av_fifo_size(ost->fifo) >= frame_bytes) {
902 AVPacket pkt;
903 av_init_packet(&pkt);
904
905 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
906
907 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
908
909 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
910 (short *)audio_buf);
911 if (ret < 0) {
912 fprintf(stderr, "Audio encoding failed\n");
913 exit_program(1);
914 }
915 audio_size += ret;
916 pkt.stream_index= ost->index;
917 pkt.data= audio_out;
918 pkt.size= ret;
919 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
920 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
921 pkt.flags |= AV_PKT_FLAG_KEY;
922 write_frame(s, &pkt, enc, ost->bitstream_filters);
923
924 ost->sync_opts += enc->frame_size;
925 }
926 } else {
927 AVPacket pkt;
928 av_init_packet(&pkt);
929
930 ost->sync_opts += size_out / (osize * enc->channels);
931
932 /* output a pcm frame */
933 /* determine the size of the coded buffer */
934 size_out /= osize;
935 if (coded_bps)
936 size_out = size_out*coded_bps/8;
937
938 if(size_out > audio_out_size){
939 fprintf(stderr, "Internal error, buffer size too small\n");
940 exit_program(1);
941 }
942
943 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
944 ret = avcodec_encode_audio(enc, audio_out, size_out,
945 (short *)buftmp);
946 if (ret < 0) {
947 fprintf(stderr, "Audio encoding failed\n");
948 exit_program(1);
949 }
950 audio_size += ret;
951 pkt.stream_index= ost->index;
952 pkt.data= audio_out;
953 pkt.size= ret;
954 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
955 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
956 pkt.flags |= AV_PKT_FLAG_KEY;
957 write_frame(s, &pkt, enc, ost->bitstream_filters);
958 }
959 }
960
961 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
962 {
963 AVCodecContext *dec;
964 AVPicture *picture2;
965 AVPicture picture_tmp;
966 uint8_t *buf = 0;
967
968 dec = ist->st->codec;
969
970 /* deinterlace : must be done before any resize */
971 if (do_deinterlace) {
972 int size;
973
974 /* create temporary picture */
975 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
976 buf = av_malloc(size);
977 if (!buf)
978 return;
979
980 picture2 = &picture_tmp;
981 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
982
983 if(avpicture_deinterlace(picture2, picture,
984 dec->pix_fmt, dec->width, dec->height) < 0) {
985 /* if error, do not deinterlace */
986 fprintf(stderr, "Deinterlacing failed\n");
987 av_free(buf);
988 buf = NULL;
989 picture2 = picture;
990 }
991 } else {
992 picture2 = picture;
993 }
994
995 if (picture != picture2)
996 *picture = *picture2;
997 *bufp = buf;
998 }
999
1000 static void do_subtitle_out(AVFormatContext *s,
1001 OutputStream *ost,
1002 InputStream *ist,
1003 AVSubtitle *sub,
1004 int64_t pts)
1005 {
1006 static uint8_t *subtitle_out = NULL;
1007 int subtitle_out_max_size = 1024 * 1024;
1008 int subtitle_out_size, nb, i;
1009 AVCodecContext *enc;
1010 AVPacket pkt;
1011
1012 if (pts == AV_NOPTS_VALUE) {
1013 fprintf(stderr, "Subtitle packets must have a pts\n");
1014 if (exit_on_error)
1015 exit_program(1);
1016 return;
1017 }
1018
1019 enc = ost->st->codec;
1020
1021 if (!subtitle_out) {
1022 subtitle_out = av_malloc(subtitle_out_max_size);
1023 }
1024
1025 /* Note: DVB subtitle need one packet to draw them and one other
1026 packet to clear them */
1027 /* XXX: signal it in the codec context ? */
1028 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1029 nb = 2;
1030 else
1031 nb = 1;
1032
1033 for(i = 0; i < nb; i++) {
1034 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1035 // start_display_time is required to be 0
1036 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1037 sub->end_display_time -= sub->start_display_time;
1038 sub->start_display_time = 0;
1039 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1040 subtitle_out_max_size, sub);
1041 if (subtitle_out_size < 0) {
1042 fprintf(stderr, "Subtitle encoding failed\n");
1043 exit_program(1);
1044 }
1045
1046 av_init_packet(&pkt);
1047 pkt.stream_index = ost->index;
1048 pkt.data = subtitle_out;
1049 pkt.size = subtitle_out_size;
1050 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1051 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1052 /* XXX: the pts correction is handled here. Maybe handling
1053 it in the codec would be better */
1054 if (i == 0)
1055 pkt.pts += 90 * sub->start_display_time;
1056 else
1057 pkt.pts += 90 * sub->end_display_time;
1058 }
1059 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1060 }
1061 }
1062
1063 static int bit_buffer_size= 1024*256;
1064 static uint8_t *bit_buffer= NULL;
1065
1066 static void do_video_resample(OutputStream *ost,
1067 InputStream *ist,
1068 AVFrame *in_picture,
1069 AVFrame **out_picture)
1070 {
1071 int resample_changed = 0;
1072 AVCodecContext *dec = ist->st->codec;
1073 *out_picture = in_picture;
1074
1075 resample_changed = ost->resample_width != dec->width ||
1076 ost->resample_height != dec->height ||
1077 ost->resample_pix_fmt != dec->pix_fmt;
1078
1079 if (resample_changed) {
1080 av_log(NULL, AV_LOG_INFO,
1081 "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1082 ist->file_index, ist->st->index,
1083 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1084 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt));
1085 if(!ost->video_resample)
1086 ost->video_resample = 1;
1087 }
1088
1089 #if !CONFIG_AVFILTER
1090 if (ost->video_resample) {
1091 *out_picture = &ost->pict_tmp;
1092 if (resample_changed) {
1093 /* initialize a new scaler context */
1094 sws_freeContext(ost->img_resample_ctx);
1095 ost->img_resample_ctx = sws_getContext(
1096 ist->st->codec->width,
1097 ist->st->codec->height,
1098 ist->st->codec->pix_fmt,
1099 ost->st->codec->width,
1100 ost->st->codec->height,
1101 ost->st->codec->pix_fmt,
1102 ost->sws_flags, NULL, NULL, NULL);
1103 if (ost->img_resample_ctx == NULL) {
1104 fprintf(stderr, "Cannot get resampling context\n");
1105 exit_program(1);
1106 }
1107 }
1108 sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1109 0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1110 }
1111 #else
1112 if (resample_changed) {
1113 avfilter_graph_free(&ost->graph);
1114 if (configure_video_filters(ist, ost)) {
1115 fprintf(stderr, "Error reinitializing filters!\n");
1116 exit_program(1);
1117 }
1118 }
1119 #endif
1120 if (resample_changed) {
1121 ost->resample_width = dec->width;
1122 ost->resample_height = dec->height;
1123 ost->resample_pix_fmt = dec->pix_fmt;
1124 }
1125 }
1126
1127
1128 static void do_video_out(AVFormatContext *s,
1129 OutputStream *ost,
1130 InputStream *ist,
1131 AVFrame *in_picture,
1132 int *frame_size, float quality)
1133 {
1134 int nb_frames, i, ret, format_video_sync;
1135 AVFrame *final_picture;
1136 AVCodecContext *enc;
1137 double sync_ipts;
1138
1139 enc = ost->st->codec;
1140
1141 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1142
1143 /* by default, we output a single frame */
1144 nb_frames = 1;
1145
1146 *frame_size = 0;
1147
1148 format_video_sync = video_sync_method;
1149 if (format_video_sync < 0)
1150 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1151
1152 if (format_video_sync) {
1153 double vdelta = sync_ipts - ost->sync_opts;
1154 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1155 if (vdelta < -1.1)
1156 nb_frames = 0;
1157 else if (format_video_sync == 2) {
1158 if(vdelta<=-0.6){
1159 nb_frames=0;
1160 }else if(vdelta>0.6)
1161 ost->sync_opts= lrintf(sync_ipts);
1162 }else if (vdelta > 1.1)
1163 nb_frames = lrintf(vdelta);
1164 //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);
1165 if (nb_frames == 0){
1166 ++nb_frames_drop;
1167 if (verbose>2)
1168 fprintf(stderr, "*** drop!\n");
1169 }else if (nb_frames > 1) {
1170 nb_frames_dup += nb_frames - 1;
1171 if (verbose>2)
1172 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1173 }
1174 }else
1175 ost->sync_opts= lrintf(sync_ipts);
1176
1177 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
1178 if (nb_frames <= 0)
1179 return;
1180
1181 do_video_resample(ost, ist, in_picture, &final_picture);
1182
1183 /* duplicates frame if needed */
1184 for(i=0;i<nb_frames;i++) {
1185 AVPacket pkt;
1186 av_init_packet(&pkt);
1187 pkt.stream_index= ost->index;
1188
1189 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1190 /* raw pictures are written as AVPicture structure to
1191 avoid any copies. We support temporarily the older
1192 method. */
1193 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1194 enc->coded_frame->top_field_first = in_picture->top_field_first;
1195 pkt.data= (uint8_t *)final_picture;
1196 pkt.size= sizeof(AVPicture);
1197 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1198 pkt.flags |= AV_PKT_FLAG_KEY;
1199
1200 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1201 } else {
1202 AVFrame big_picture;
1203
1204 big_picture= *final_picture;
1205 /* better than nothing: use input picture interlaced
1206 settings */
1207 big_picture.interlaced_frame = in_picture->interlaced_frame;
1208 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1209 if(top_field_first == -1)
1210 big_picture.top_field_first = in_picture->top_field_first;
1211 else
1212 big_picture.top_field_first = top_field_first;
1213 }
1214
1215 /* handles same_quant here. This is not correct because it may
1216 not be a global option */
1217 big_picture.quality = quality;
1218 if(!me_threshold)
1219 big_picture.pict_type = 0;
1220 // big_picture.pts = AV_NOPTS_VALUE;
1221 big_picture.pts= ost->sync_opts;
1222 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1223 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1224 if (ost->forced_kf_index < ost->forced_kf_count &&
1225 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1226 big_picture.pict_type = AV_PICTURE_TYPE_I;
1227 ost->forced_kf_index++;
1228 }
1229 ret = avcodec_encode_video(enc,
1230 bit_buffer, bit_buffer_size,
1231 &big_picture);
1232 if (ret < 0) {
1233 fprintf(stderr, "Video encoding failed\n");
1234 exit_program(1);
1235 }
1236
1237 if(ret>0){
1238 pkt.data= bit_buffer;
1239 pkt.size= ret;
1240 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1241 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1242 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1243 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1244 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1245
1246 if(enc->coded_frame->key_frame)
1247 pkt.flags |= AV_PKT_FLAG_KEY;
1248 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1249 *frame_size = ret;
1250 video_size += ret;
1251 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1252 // enc->frame_number-1, ret, enc->pict_type);
1253 /* if two pass, output log */
1254 if (ost->logfile && enc->stats_out) {
1255 fprintf(ost->logfile, "%s", enc->stats_out);
1256 }
1257 }
1258 }
1259 ost->sync_opts++;
1260 ost->frame_number++;
1261 }
1262 }
1263
1264 static double psnr(double d){
1265 return -10.0*log(d)/log(10.0);
1266 }
1267
1268 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1269 int frame_size)
1270 {
1271 AVCodecContext *enc;
1272 int frame_number;
1273 double ti1, bitrate, avg_bitrate;
1274
1275 /* this is executed just the first time do_video_stats is called */
1276 if (!vstats_file) {
1277 vstats_file = fopen(vstats_filename, "w");
1278 if (!vstats_file) {
1279 perror("fopen");
1280 exit_program(1);
1281 }
1282 }
1283
1284 enc = ost->st->codec;
1285 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1286 frame_number = ost->frame_number;
1287 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1288 if (enc->flags&CODEC_FLAG_PSNR)
1289 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1290
1291 fprintf(vstats_file,"f_size= %6d ", frame_size);
1292 /* compute pts value */
1293 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1294 if (ti1 < 0.01)
1295 ti1 = 0.01;
1296
1297 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1298 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1299 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1300 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1301 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1302 }
1303 }
1304
1305 static void print_report(OutputFile *output_files,
1306 OutputStream *ost_table, int nb_ostreams,
1307 int is_last_report, int64_t timer_start)
1308 {
1309 char buf[1024];
1310 OutputStream *ost;
1311 AVFormatContext *oc;
1312 int64_t total_size;
1313 AVCodecContext *enc;
1314 int frame_number, vid, i;
1315 double bitrate, ti1, pts;
1316 static int64_t last_time = -1;
1317 static int qp_histogram[52];
1318
1319 if (!is_last_report) {
1320 int64_t cur_time;
1321 /* display the report every 0.5 seconds */
1322 cur_time = av_gettime();
1323 if (last_time == -1) {
1324 last_time = cur_time;
1325 return;
1326 }
1327 if ((cur_time - last_time) < 500000)
1328 return;
1329 last_time = cur_time;
1330 }
1331
1332
1333 oc = output_files[0].ctx;
1334
1335 total_size = avio_size(oc->pb);
1336 if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1337 total_size= avio_tell(oc->pb);
1338
1339 buf[0] = '\0';
1340 ti1 = 1e10;
1341 vid = 0;
1342 for(i=0;i<nb_ostreams;i++) {
1343 float q = -1;
1344 ost = &ost_table[i];
1345 enc = ost->st->codec;
1346 if (!ost->st->stream_copy && enc->coded_frame)
1347 q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1348 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1349 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1350 }
1351 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1352 float t = (av_gettime()-timer_start) / 1000000.0;
1353
1354 frame_number = ost->frame_number;
1355 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1356 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1357 if(is_last_report)
1358 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1359 if(qp_hist){
1360 int j;
1361 int qp = lrintf(q);
1362 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1363 qp_histogram[qp]++;
1364 for(j=0; j<32; j++)
1365 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1366 }
1367 if (enc->flags&CODEC_FLAG_PSNR){
1368 int j;
1369 double error, error_sum=0;
1370 double scale, scale_sum=0;
1371 char type[3]= {'Y','U','V'};
1372 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1373 for(j=0; j<3; j++){
1374 if(is_last_report){
1375 error= enc->error[j];
1376 scale= enc->width*enc->height*255.0*255.0*frame_number;
1377 }else{
1378 error= enc->coded_frame->error[j];
1379 scale= enc->width*enc->height*255.0*255.0;
1380 }
1381 if(j) scale/=4;
1382 error_sum += error;
1383 scale_sum += scale;
1384 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1385 }
1386 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1387 }
1388 vid = 1;
1389 }
1390 /* compute min output value */
1391 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1392 if ((pts < ti1) && (pts > 0))
1393 ti1 = pts;
1394 }
1395 if (ti1 < 0.01)
1396 ti1 = 0.01;
1397
1398 if (verbose > 0 || is_last_report) {
1399 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1400
1401 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1402 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1403 (double)total_size / 1024, ti1, bitrate);
1404
1405 if (nb_frames_dup || nb_frames_drop)
1406 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1407 nb_frames_dup, nb_frames_drop);
1408
1409 if (verbose >= 0)
1410 fprintf(stderr, "%s \r", buf);
1411
1412 fflush(stderr);
1413 }
1414
1415 if (is_last_report && verbose >= 0){
1416 int64_t raw= audio_size + video_size + extra_size;
1417 fprintf(stderr, "\n");
1418 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1419 video_size/1024.0,
1420 audio_size/1024.0,
1421 extra_size/1024.0,
1422 100.0*(total_size - raw)/raw
1423 );
1424 }
1425 }
1426
1427 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1428 {
1429 int fill_char = 0x00;
1430 if (sample_fmt == AV_SAMPLE_FMT_U8)
1431 fill_char = 0x80;
1432 memset(buf, fill_char, size);
1433 }
1434
1435 static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
1436 {
1437 int i, ret;
1438
1439 for (i = 0; i < nb_ostreams; i++) {
1440 OutputStream *ost = &ost_table[i];
1441 AVCodecContext *enc = ost->st->codec;
1442 AVFormatContext *os = output_files[ost->file_index].ctx;
1443
1444 if (!ost->encoding_needed)
1445 continue;
1446
1447 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1448 continue;
1449 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1450 continue;
1451
1452 for(;;) {
1453 AVPacket pkt;
1454 int fifo_bytes;
1455 av_init_packet(&pkt);
1456 pkt.stream_index= ost->index;
1457
1458 switch (ost->st->codec->codec_type) {
1459 case AVMEDIA_TYPE_AUDIO:
1460 fifo_bytes = av_fifo_size(ost->fifo);
1461 ret = 0;
1462 /* encode any samples remaining in fifo */
1463 if (fifo_bytes > 0) {
1464 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1465 int fs_tmp = enc->frame_size;
1466
1467 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1468 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1469 enc->frame_size = fifo_bytes / (osize * enc->channels);
1470 } else { /* pad */
1471 int frame_bytes = enc->frame_size*osize*enc->channels;
1472 if (allocated_audio_buf_size < frame_bytes)
1473 exit_program(1);
1474 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1475 }
1476
1477 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1478 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1479 ost->st->time_base.num, enc->sample_rate);
1480 enc->frame_size = fs_tmp;
1481 }
1482 if (ret <= 0) {
1483 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1484 }
1485 if (ret < 0) {
1486 fprintf(stderr, "Audio encoding failed\n");
1487 exit_program(1);
1488 }
1489 audio_size += ret;
1490 pkt.flags |= AV_PKT_FLAG_KEY;
1491 break;
1492 case AVMEDIA_TYPE_VIDEO:
1493 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1494 if (ret < 0) {
1495 fprintf(stderr, "Video encoding failed\n");
1496 exit_program(1);
1497 }
1498 video_size += ret;
1499 if(enc->coded_frame && enc->coded_frame->key_frame)
1500 pkt.flags |= AV_PKT_FLAG_KEY;
1501 if (ost->logfile && enc->stats_out) {
1502 fprintf(ost->logfile, "%s", enc->stats_out);
1503 }
1504 break;
1505 default:
1506 ret=-1;
1507 }
1508
1509 if (ret <= 0)
1510 break;
1511 pkt.data = bit_buffer;
1512 pkt.size = ret;
1513 if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1514 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1515 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1516 }
1517 }
1518 }
1519
1520 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1521 static int output_packet(InputStream *ist, int ist_index,
1522 OutputStream *ost_table, int nb_ostreams,
1523 const AVPacket *pkt)
1524 {
1525 AVFormatContext *os;
1526 OutputStream *ost;
1527 int ret, i;
1528 int got_output;
1529 AVFrame picture;
1530 void *buffer_to_free = NULL;
1531 static unsigned int samples_size= 0;
1532 AVSubtitle subtitle, *subtitle_to_free;
1533 int64_t pkt_pts = AV_NOPTS_VALUE;
1534 #if CONFIG_AVFILTER
1535 int frame_available;
1536 #endif
1537 float quality;
1538
1539 AVPacket avpkt;
1540 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1541
1542 if(ist->next_pts == AV_NOPTS_VALUE)
1543 ist->next_pts= ist->pts;
1544
1545 if (pkt == NULL) {
1546 /* EOF handling */
1547 av_init_packet(&avpkt);
1548 avpkt.data = NULL;
1549 avpkt.size = 0;
1550 goto handle_eof;
1551 } else {
1552 avpkt = *pkt;
1553 }
1554
1555 if(pkt->dts != AV_NOPTS_VALUE)
1556 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1557 if(pkt->pts != AV_NOPTS_VALUE)
1558 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1559
1560 //while we have more to decode or while the decoder did output something on EOF
1561 while (avpkt.size > 0 || (!pkt && got_output)) {
1562 uint8_t *data_buf, *decoded_data_buf;
1563 int data_size, decoded_data_size;
1564 handle_eof:
1565 ist->pts= ist->next_pts;
1566
1567 if(avpkt.size && avpkt.size != pkt->size &&
1568 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1569 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1570 ist->showed_multi_packet_warning=1;
1571 }
1572
1573 /* decode the packet if needed */
1574 decoded_data_buf = NULL; /* fail safe */
1575 decoded_data_size= 0;
1576 data_buf = avpkt.data;
1577 data_size = avpkt.size;
1578 subtitle_to_free = NULL;
1579 if (ist->decoding_needed) {
1580 switch(ist->st->codec->codec_type) {
1581 case AVMEDIA_TYPE_AUDIO:{
1582 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1583 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1584 av_free(samples);
1585 samples= av_malloc(samples_size);
1586 }
1587 decoded_data_size= samples_size;
1588 /* XXX: could avoid copy if PCM 16 bits with same
1589 endianness as CPU */
1590 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1591 &avpkt);
1592 if (ret < 0)
1593 return ret;
1594 avpkt.data += ret;
1595 avpkt.size -= ret;
1596 data_size = ret;
1597 got_output = decoded_data_size > 0;
1598 /* Some bug in mpeg audio decoder gives */
1599 /* decoded_data_size < 0, it seems they are overflows */
1600 if (!got_output) {
1601 /* no audio frame */
1602 continue;
1603 }
1604 decoded_data_buf = (uint8_t *)samples;
1605 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1606 (ist->st->codec->sample_rate * ist->st->codec->channels);
1607 break;}
1608 case AVMEDIA_TYPE_VIDEO:
1609 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1610 /* XXX: allocate picture correctly */
1611 avcodec_get_frame_defaults(&picture);
1612 avpkt.pts = pkt_pts;
1613 avpkt.dts = ist->pts;
1614 pkt_pts = AV_NOPTS_VALUE;
1615
1616 ret = avcodec_decode_video2(ist->st->codec,
1617 &picture, &got_output, &avpkt);
1618 quality = same_quant ? picture.quality : 0;
1619 if (ret < 0)
1620 return ret;
1621 if (!got_output) {
1622 /* no picture yet */
1623 goto discard_packet;
1624 }
1625 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1626 if (ist->st->codec->time_base.num != 0) {
1627 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1628 ist->next_pts += ((int64_t)AV_TIME_BASE *
1629 ist->st->codec->time_base.num * ticks) /
1630 ist->st->codec->time_base.den;
1631 }
1632 avpkt.size = 0;
1633 buffer_to_free = NULL;
1634 pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1635 break;
1636 case AVMEDIA_TYPE_SUBTITLE:
1637 ret = avcodec_decode_subtitle2(ist->st->codec,
1638 &subtitle, &got_output, &avpkt);
1639 if (ret < 0)
1640 return ret;
1641 if (!got_output) {
1642 goto discard_packet;
1643 }
1644 subtitle_to_free = &subtitle;
1645 avpkt.size = 0;
1646 break;
1647 default:
1648 return -1;
1649 }
1650 } else {
1651 switch(ist->st->codec->codec_type) {
1652 case AVMEDIA_TYPE_AUDIO:
1653 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1654 ist->st->codec->sample_rate;
1655 break;
1656 case AVMEDIA_TYPE_VIDEO:
1657 if (ist->st->codec->time_base.num != 0) {
1658 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1659 ist->next_pts += ((int64_t)AV_TIME_BASE *
1660 ist->st->codec->time_base.num * ticks) /
1661 ist->st->codec->time_base.den;
1662 }
1663 break;
1664 }
1665 avpkt.size = 0;
1666 }
1667
1668 // preprocess audio (volume)
1669 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1670 if (audio_volume != 256) {
1671 short *volp;
1672 volp = samples;
1673 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1674 int v = ((*volp) * audio_volume + 128) >> 8;
1675 *volp++ = av_clip_int16(v);
1676 }
1677 }
1678 }
1679
1680 /* frame rate emulation */
1681 if (input_files[ist->file_index].rate_emu) {
1682 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1683 int64_t now = av_gettime() - ist->start;
1684 if (pts > now)
1685 usleep(pts - now);
1686 }
1687 /* if output time reached then transcode raw format,
1688 encode packets and output them */
1689 for (i = 0; i < nb_ostreams; i++) {
1690 OutputFile *of = &output_files[ost_table[i].file_index];
1691 int frame_size;
1692
1693 ost = &ost_table[i];
1694 if (ost->source_index != ist_index)
1695 continue;
1696
1697 if (of->start_time && ist->pts < of->start_time)
1698 continue;
1699
1700 if (of->recording_time != INT64_MAX &&
1701 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1702 (AVRational){1, 1000000}) >= 0) {
1703 ost->is_past_recording_time = 1;
1704 continue;
1705 }
1706
1707 #if CONFIG_AVFILTER
1708 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1709 ost->input_video_filter) {
1710 AVRational sar;
1711 if (ist->st->sample_aspect_ratio.num)
1712 sar = ist->st->sample_aspect_ratio;
1713 else
1714 sar = ist->st->codec->sample_aspect_ratio;
1715 av_vsrc_buffer_add_frame(ost->input_video_filter, &picture, ist->pts, sar);
1716 }
1717 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1718 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1719 while (frame_available) {
1720 AVRational ist_pts_tb;
1721 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1722 get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1723 if (ost->picref)
1724 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1725 #endif
1726 os = output_files[ost->file_index].ctx;
1727
1728 /* set the input output pts pairs */
1729 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1730
1731 if (ost->encoding_needed) {
1732 av_assert0(ist->decoding_needed);
1733 switch(ost->st->codec->codec_type) {
1734 case AVMEDIA_TYPE_AUDIO:
1735 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1736 break;
1737 case AVMEDIA_TYPE_VIDEO:
1738 #if CONFIG_AVFILTER
1739 if (ost->picref->video && !ost->frame_aspect_ratio)
1740 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1741 #endif
1742 do_video_out(os, ost, ist, &picture, &frame_size,
1743 same_quant ? quality : ost->st->codec->global_quality);
1744 if (vstats_filename && frame_size)
1745 do_video_stats(os, ost, frame_size);
1746 break;
1747 case AVMEDIA_TYPE_SUBTITLE:
1748 do_subtitle_out(os, ost, ist, &subtitle,
1749 pkt->pts);
1750 break;
1751 default:
1752 abort();
1753 }
1754 } else {
1755 AVFrame avframe; //FIXME/XXX remove this
1756 AVPacket opkt;
1757 int64_t ost_tb_start_time= av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1758
1759 av_init_packet(&opkt);
1760
1761 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1762 #if !CONFIG_AVFILTER
1763 continue;
1764 #else
1765 goto cont;
1766 #endif
1767
1768 /* no reencoding needed : output the packet directly */
1769 /* force the input stream PTS */
1770
1771 avcodec_get_frame_defaults(&avframe);
1772 ost->st->codec->coded_frame= &avframe;
1773 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1774
1775 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1776 audio_size += data_size;
1777 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1778 video_size += data_size;
1779 ost->sync_opts++;
1780 }
1781
1782 opkt.stream_index= ost->index;
1783 if(pkt->pts != AV_NOPTS_VALUE)
1784 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1785 else
1786 opkt.pts= AV_NOPTS_VALUE;
1787
1788 if (pkt->dts == AV_NOPTS_VALUE)
1789 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1790 else
1791 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1792 opkt.dts -= ost_tb_start_time;
1793
1794 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1795 opkt.flags= pkt->flags;
1796
1797 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1798 if( ost->st->codec->codec_id != CODEC_ID_H264
1799 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1800 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1801 ) {
1802 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1803 opkt.destruct= av_destruct_packet;
1804 } else {
1805 opkt.data = data_buf;
1806 opkt.size = data_size;
1807 }
1808
1809 write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1810 ost->st->codec->frame_number++;
1811 ost->frame_number++;
1812 av_free_packet(&opkt);
1813 }
1814 #if CONFIG_AVFILTER
1815 cont:
1816 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1817 ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1818 if (ost->picref)
1819 avfilter_unref_buffer(ost->picref);
1820 }
1821 #endif
1822 }
1823
1824 av_free(buffer_to_free);
1825 /* XXX: allocate the subtitles in the codec ? */
1826 if (subtitle_to_free) {
1827 avsubtitle_free(subtitle_to_free);
1828 subtitle_to_free = NULL;
1829 }
1830 }
1831 discard_packet:
1832
1833 return 0;
1834 }
1835
1836 static void print_sdp(OutputFile *output_files, int n)
1837 {
1838 char sdp[2048];
1839 int i;
1840 AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
1841
1842 if (!avc)
1843 exit_program(1);
1844 for (i = 0; i < n; i++)
1845 avc[i] = output_files[i].ctx;
1846
1847 av_sdp_create(avc, n, sdp, sizeof(sdp));
1848 printf("SDP:\n%s\n", sdp);
1849 fflush(stdout);
1850 av_freep(&avc);
1851 }
1852
1853 static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
1854 char *error, int error_len)
1855 {
1856 int i;
1857 InputStream *ist = &input_streams[ist_index];
1858 if (ist->decoding_needed) {
1859 AVCodec *codec = ist->dec;
1860 if (!codec) {
1861 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d.%d",
1862 ist->st->codec->codec_id, ist->file_index, ist->st->index);
1863 return AVERROR(EINVAL);
1864 }
1865
1866 /* update requested sample format for the decoder based on the
1867 corresponding encoder sample format */
1868 for (i = 0; i < nb_output_streams; i++) {
1869 OutputStream *ost = &output_streams[i];
1870 if (ost->source_index == ist_index) {
1871 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
1872 break;
1873 }
1874 }
1875
1876 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
1877 snprintf(error, error_len, "Error while opening decoder for input stream #%d.%d",
1878 ist->file_index, ist->st->index);
1879 return AVERROR(EINVAL);
1880 }
1881 assert_codec_experimental(ist->st->codec, 0);
1882 assert_avoptions(ist->opts);
1883 }
1884
1885 ist->pts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames*AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
1886 ist->next_pts = AV_NOPTS_VALUE;
1887 init_pts_correction(&ist->pts_ctx);
1888 ist->is_start = 1;
1889
1890 return 0;
1891 }
1892
1893 static int transcode_init(OutputFile *output_files,
1894 int nb_output_files,
1895 InputFile *input_files,
1896 int nb_input_files)
1897 {
1898 int ret = 0, i, j;
1899 AVFormatContext *os;
1900 AVCodecContext *codec, *icodec;
1901 OutputStream *ost;
1902 InputStream *ist;
1903 char error[1024];
1904 int want_sdp = 1;
1905
1906 /* init framerate emulation */
1907 for (i = 0; i < nb_input_files; i++) {
1908 InputFile *ifile = &input_files[i];
1909 if (ifile->rate_emu)
1910 for (j = 0; j < ifile->nb_streams; j++)
1911 input_streams[j + ifile->ist_index].start = av_gettime();
1912 }
1913
1914 /* output stream init */
1915 for(i=0;i<nb_output_files;i++) {
1916 os = output_files[i].ctx;
1917 if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1918 av_dump_format(os, i, os->filename, 1);
1919 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1920 return AVERROR(EINVAL);
1921 }
1922 }
1923
1924 /* for each output stream, we compute the right encoding parameters */
1925 for (i = 0; i < nb_output_streams; i++) {
1926 ost = &output_streams[i];
1927 os = output_files[ost->file_index].ctx;
1928 ist = &input_streams[ost->source_index];
1929
1930 codec = ost->st->codec;
1931 icodec = ist->st->codec;
1932
1933 ost->st->disposition = ist->st->disposition;
1934 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1935 codec->chroma_sample_location = icodec->chroma_sample_location;
1936
1937 if (ost->st->stream_copy) {
1938 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1939
1940 if (extra_size > INT_MAX) {
1941 return AVERROR(EINVAL);
1942 }
1943
1944 /* if stream_copy is selected, no need to decode or encode */
1945 codec->codec_id = icodec->codec_id;
1946 codec->codec_type = icodec->codec_type;
1947
1948 if(!codec->codec_tag){
1949 if( !os->oformat->codec_tag
1950 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1951 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1952 codec->codec_tag = icodec->codec_tag;
1953 }
1954
1955 codec->bit_rate = icodec->bit_rate;
1956 codec->rc_max_rate = icodec->rc_max_rate;
1957 codec->rc_buffer_size = icodec->rc_buffer_size;
1958 codec->extradata= av_mallocz(extra_size);
1959 if (!codec->extradata) {
1960 return AVERROR(ENOMEM);
1961 }
1962 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1963 codec->extradata_size= icodec->extradata_size;
1964 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){
1965 codec->time_base = icodec->time_base;
1966 codec->time_base.num *= icodec->ticks_per_frame;
1967 av_reduce(&codec->time_base.num, &codec->time_base.den,
1968 codec->time_base.num, codec->time_base.den, INT_MAX);
1969 }else
1970 codec->time_base = ist->st->time_base;
1971 switch(codec->codec_type) {
1972 case AVMEDIA_TYPE_AUDIO:
1973 if(audio_volume != 256) {
1974 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1975 exit_program(1);
1976 }
1977 codec->channel_layout = icodec->channel_layout;
1978 codec->sample_rate = icodec->sample_rate;
1979 codec->channels = icodec->channels;
1980 codec->frame_size = icodec->frame_size;
1981 codec->audio_service_type = icodec->audio_service_type;
1982 codec->block_align= icodec->block_align;
1983 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1984 codec->block_align= 0;
1985 if(codec->codec_id == CODEC_ID_AC3)
1986 codec->block_align= 0;
1987 break;
1988 case AVMEDIA_TYPE_VIDEO:
1989 codec->pix_fmt = icodec->pix_fmt;
1990 codec->width = icodec->width;
1991 codec->height = icodec->height;
1992 codec->has_b_frames = icodec->has_b_frames;
1993 if (!codec->sample_aspect_ratio.num) {
1994 codec->sample_aspect_ratio =
1995 ost->st->sample_aspect_ratio =
1996 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
1997 ist->st->codec->sample_aspect_ratio.num ?
1998 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
1999 }
2000 break;
2001 case AVMEDIA_TYPE_SUBTITLE:
2002 codec->width = icodec->width;
2003 codec->height = icodec->height;
2004 break;
2005 case AVMEDIA_TYPE_DATA:
2006 break;
2007 default:
2008 abort();
2009 }
2010 } else {
2011 if (!ost->enc)
2012 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2013 switch(codec->codec_type) {
2014 case AVMEDIA_TYPE_AUDIO:
2015 ost->fifo= av_fifo_alloc(1024);
2016 if (!ost->fifo) {
2017 return AVERROR(ENOMEM);
2018 }
2019 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2020 if (!codec->sample_rate) {
2021 codec->sample_rate = icodec->sample_rate;
2022 if (icodec->lowres)
2023 codec->sample_rate >>= icodec->lowres;
2024 }
2025 choose_sample_rate(ost->st, ost->enc);
2026 codec->time_base = (AVRational){1, codec->sample_rate};
2027 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2028 codec->sample_fmt = icodec->sample_fmt;
2029 choose_sample_fmt(ost->st, ost->enc);
2030 if (!codec->channels)
2031 codec->channels = icodec->channels;
2032 codec->channel_layout = icodec->channel_layout;
2033 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2034 codec->channel_layout = 0;
2035 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2036 icodec->request_channels = codec->channels;
2037 ist->decoding_needed = 1;
2038 ost->encoding_needed = 1;
2039 ost->resample_sample_fmt = icodec->sample_fmt;
2040 ost->resample_sample_rate = icodec->sample_rate;
2041 ost->resample_channels = icodec->channels;
2042 break;
2043 case AVMEDIA_TYPE_VIDEO:
2044 if (codec->pix_fmt == PIX_FMT_NONE)
2045 codec->pix_fmt = icodec->pix_fmt;
2046 choose_pixel_fmt(ost->st, ost->enc);
2047
2048 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2049 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2050 exit_program(1);
2051 }
2052
2053 if (!codec->width || !codec->height) {
2054 codec->width = icodec->width;
2055 codec->height = icodec->height;
2056 }
2057
2058 ost->video_resample = codec->width != icodec->width ||
2059 codec->height != icodec->height ||
2060 codec->pix_fmt != icodec->pix_fmt;
2061 if (ost->video_resample) {
2062 #if !CONFIG_AVFILTER
2063 avcodec_get_frame_defaults(&ost->pict_tmp);
2064 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2065 codec->width, codec->height)) {
2066 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2067 exit_program(1);
2068 }
2069 ost->img_resample_ctx = sws_getContext(
2070 icodec->width,
2071 icodec->height,
2072 icodec->pix_fmt,
2073 codec->width,
2074 codec->height,
2075 codec->pix_fmt,
2076 ost->sws_flags, NULL, NULL, NULL);
2077 if (ost->img_resample_ctx == NULL) {
2078 fprintf(stderr, "Cannot get resampling context\n");
2079 exit_program(1);
2080 }
2081 #endif
2082 codec->bits_per_raw_sample= 0;
2083 }
2084
2085 ost->resample_height = icodec->height;
2086 ost->resample_width = icodec->width;
2087 ost->resample_pix_fmt= icodec->pix_fmt;
2088 ost->encoding_needed = 1;
2089 ist->decoding_needed = 1;
2090
2091 if (!ost->frame_rate.num)
2092 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2093 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2094 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2095 ost->frame_rate = ost->enc->supported_framerates[idx];
2096 }
2097 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2098
2099 #if CONFIG_AVFILTER
2100 if (configure_video_filters(ist, ost)) {
2101 fprintf(stderr, "Error opening filters!\n");
2102 exit(1);
2103 }
2104 #endif
2105 break;
2106 case AVMEDIA_TYPE_SUBTITLE:
2107 ost->encoding_needed = 1;
2108 ist->decoding_needed = 1;
2109 break;
2110 default:
2111 abort();
2112 break;
2113 }
2114 /* two pass mode */
2115 if (ost->encoding_needed &&
2116 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2117 char logfilename[1024];
2118 FILE *f;
2119
2120 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2121 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2122 i);
2123 if (codec->flags & CODEC_FLAG_PASS1) {
2124 f = fopen(logfilename, "wb");
2125 if (!f) {
2126 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2127 exit_program(1);
2128 }
2129 ost->logfile = f;
2130 } else {
2131 char *logbuffer;
2132 size_t logbuffer_size;
2133 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2134 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2135 exit_program(1);
2136 }
2137 codec->stats_in = logbuffer;
2138 }
2139 }
2140 }
2141 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2142 int size= codec->width * codec->height;
2143 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2144 }
2145 }
2146
2147 if (!bit_buffer)
2148 bit_buffer = av_malloc(bit_buffer_size);
2149 if (!bit_buffer) {
2150 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2151 bit_buffer_size);
2152 return AVERROR(ENOMEM);
2153 }
2154
2155 /* open each encoder */
2156 for (i = 0; i < nb_output_streams; i++) {
2157 ost = &output_streams[i];
2158 if (ost->encoding_needed) {
2159 AVCodec *codec = ost->enc;
2160 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2161 if (!codec) {
2162 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2163 ost->st->codec->codec_id, ost->file_index, ost->index);
2164 ret = AVERROR(EINVAL);
2165 goto dump_format;
2166 }
2167 if (dec->subtitle_header) {
2168 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2169 if (!ost->st->codec->subtitle_header) {
2170 ret = AVERROR(ENOMEM);
2171 goto dump_format;
2172 }
2173 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2174 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2175 }
2176 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2177 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2178 ost->file_index, ost->index);
2179 ret = AVERROR(EINVAL);
2180 goto dump_format;
2181 }
2182 assert_codec_experimental(ost->st->codec, 1);
2183 assert_avoptions(ost->opts);
2184 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2185 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2186 "It takes bits/s as argument, not kbits/s\n");
2187 extra_size += ost->st->codec->extradata_size;
2188 }
2189 }
2190
2191 /* init input streams */
2192 for (i = 0; i < nb_input_streams; i++)
2193 if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0)
2194 goto dump_format;
2195
2196 /* open files and write file headers */
2197 for (i = 0; i < nb_output_files; i++) {
2198 os = output_files[i].ctx;
2199 if (avformat_write_header(os, &output_files[i].opts) < 0) {
2200 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2201 ret = AVERROR(EINVAL);
2202 goto dump_format;
2203 }
2204 assert_avoptions(output_files[i].opts);
2205 if (strcmp(os->oformat->name, "rtp")) {
2206 want_sdp = 0;
2207 }
2208 }
2209
2210 dump_format:
2211 /* dump the file output parameters - cannot be done before in case
2212 of stream copy */
2213 for(i=0;i<nb_output_files;i++) {
2214 av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2215 }
2216
2217 /* dump the stream mapping */
2218 if (verbose >= 0) {
2219 fprintf(stderr, "Stream mapping:\n");
2220 for (i = 0; i < nb_output_streams;i ++) {
2221 ost = &output_streams[i];
2222 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2223 input_streams[ost->source_index].file_index,
2224 input_streams[ost->source_index].st->index,
2225 ost->file_index,
2226 ost->index);
2227 if (ost->sync_ist != &input_streams[ost->source_index])
2228 fprintf(stderr, " [sync #%d.%d]",
2229 ost->sync_ist->file_index,
2230 ost->sync_ist->st->index);
2231 if (ost->st->stream_copy)
2232 fprintf(stderr, " (copy)");
2233 else
2234 fprintf(stderr, " (%s -> %s)", input_streams[ost->source_index].dec ?
2235 input_streams[ost->source_index].dec->name : "?",
2236 ost->enc ? ost->enc->name : "?");
2237 fprintf(stderr, "\n");
2238 }
2239 }
2240
2241 if (ret) {
2242 fprintf(stderr, "%s\n", error);
2243 return ret;
2244 }
2245
2246 if (want_sdp) {
2247 print_sdp(output_files, nb_output_files);
2248 }
2249
2250 return 0;
2251 }
2252
2253 /*
2254 * The following code is the main loop of the file converter
2255 */
2256 static int transcode(OutputFile *output_files,
2257 int nb_output_files,
2258 InputFile *input_files,
2259 int nb_input_files)
2260 {
2261 int ret, i;
2262 AVFormatContext *is, *os;
2263 OutputStream *ost;
2264 InputStream *ist;
2265 uint8_t *no_packet;
2266 int no_packet_count=0;
2267 int64_t timer_start;
2268
2269 if (!(no_packet = av_mallocz(nb_input_files)))
2270 exit_program(1);
2271
2272 ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
2273 if (ret < 0)
2274 goto fail;
2275
2276 if (verbose >= 0)
2277 fprintf(stderr, "Press ctrl-c to stop encoding\n");
2278 term_init();
2279
2280 timer_start = av_gettime();
2281
2282 for(; received_sigterm == 0;) {
2283 int file_index, ist_index;
2284 AVPacket pkt;
2285 int64_t ipts_min;
2286 double opts_min;
2287
2288 ipts_min = INT64_MAX;
2289 opts_min= 1e100;
2290
2291 /* select the stream that we must read now by looking at the
2292 smallest output pts */
2293 file_index = -1;
2294 for (i = 0; i < nb_output_streams; i++) {
2295 OutputFile *of;
2296 int64_t ipts;
2297 double opts;
2298 ost = &output_streams[i];
2299 of = &output_files[ost->file_index];
2300 os = output_files[ost->file_index].ctx;
2301 ist = &input_streams[ost->source_index];
2302 if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2303 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2304 continue;
2305 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2306 ipts = ist->pts;
2307 if (!input_files[ist->file_index].eof_reached){
2308 if(ipts < ipts_min) {
2309 ipts_min = ipts;
2310 if(input_sync ) file_index = ist->file_index;
2311 }
2312 if(opts < opts_min) {
2313 opts_min = opts;
2314 if(!input_sync) file_index = ist->file_index;
2315 }
2316 }
2317 if (ost->frame_number >= ost->max_frames) {
2318 int j;
2319 for (j = of->ost_index; j < of->ctx->nb_streams; j++)
2320 output_streams[j].is_past_recording_time = 1;
2321 continue;
2322 }
2323 }
2324 /* if none, if is finished */
2325 if (file_index < 0) {
2326 if(no_packet_count){
2327 no_packet_count=0;
2328 memset(no_packet, 0, nb_input_files);
2329 usleep(10000);
2330 continue;
2331 }
2332 break;
2333 }
2334
2335 /* read a frame from it and output it in the fifo */
2336 is = input_files[file_index].ctx;
2337 ret= av_read_frame(is, &pkt);
2338 if(ret == AVERROR(EAGAIN)){
2339 no_packet[file_index]=1;
2340 no_packet_count++;
2341 continue;
2342 }
2343 if (ret < 0) {
2344 input_files[file_index].eof_reached = 1;
2345 if (opt_shortest)
2346 break;
2347 else
2348 continue;
2349 }
2350
2351 no_packet_count=0;
2352 memset(no_packet, 0, nb_input_files);
2353
2354 if (do_pkt_dump) {
2355 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2356 is->streams[pkt.stream_index]);
2357 }
2358 /* the following test is needed in case new streams appear
2359 dynamically in stream : we ignore them */
2360 if (pkt.stream_index >= input_files[file_index].nb_streams)
2361 goto discard_packet;
2362 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2363 ist = &input_streams[ist_index];
2364 if (ist->discard)
2365 goto discard_packet;
2366
2367 if (pkt.dts != AV_NOPTS_VALUE)
2368 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2369 if (pkt.pts != AV_NOPTS_VALUE)
2370 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2371
2372 if(pkt.pts != AV_NOPTS_VALUE)
2373 pkt.pts *= ist->ts_scale;
2374 if(pkt.dts != AV_NOPTS_VALUE)
2375 pkt.dts *= ist->ts_scale;
2376
2377 // 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);
2378 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2379 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2380 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2381 int64_t delta= pkt_dts - ist->next_pts;
2382 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2383 input_files[ist->file_index].ts_offset -= delta;
2384 if (verbose > 2)
2385 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2386 delta, input_files[ist->file_index].ts_offset);
2387 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2388 if(pkt.pts != AV_NOPTS_VALUE)
2389 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2390 }
2391 }
2392
2393 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2394 if (output_packet(ist, ist_index, output_streams, nb_output_streams, &pkt) < 0) {
2395
2396 if (verbose >= 0)
2397 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2398 ist->file_index, ist->st->index);
2399 if (exit_on_error)
2400 exit_program(1);
2401 av_free_packet(&pkt);
2402 continue;
2403 }
2404
2405 discard_packet:
2406 av_free_packet(&pkt);
2407
2408 /* dump report by using the output first video and audio streams */
2409 print_report(output_files, output_streams, nb_output_streams, 0, timer_start);
2410 }
2411
2412 /* at the end of stream, we must flush the decoder buffers */
2413 for (i = 0; i < nb_input_streams; i++) {
2414 ist = &input_streams[i];
2415 if (ist->decoding_needed) {
2416 output_packet(ist, i, output_streams, nb_output_streams, NULL);
2417 }
2418 }
2419 flush_encoders(output_streams, nb_output_streams);
2420
2421 term_exit();
2422
2423 /* write the trailer if needed and close file */
2424 for(i=0;i<nb_output_files;i++) {
2425 os = output_files[i].ctx;
2426 av_write_trailer(os);
2427 }
2428
2429 /* dump report by using the first video and audio streams */
2430 print_report(output_files, output_streams, nb_output_streams, 1, timer_start);
2431
2432 /* close each encoder */
2433 for (i = 0; i < nb_output_streams; i++) {
2434 ost = &output_streams[i];
2435 if (ost->encoding_needed) {
2436 av_freep(&ost->st->codec->stats_in);
2437 avcodec_close(ost->st->codec);
2438 }
2439 #if CONFIG_AVFILTER
2440 avfilter_graph_free(&ost->graph);
2441 #endif
2442 }
2443
2444 /* close each decoder */
2445 for (i = 0; i < nb_input_streams; i++) {
2446 ist = &input_streams[i];
2447 if (ist->decoding_needed) {
2448 avcodec_close(ist->st->codec);
2449 }
2450 }
2451
2452 /* finished ! */
2453 ret = 0;
2454
2455 fail:
2456 av_freep(&bit_buffer);
2457 av_freep(&no_packet);
2458
2459 if (output_streams) {
2460 for (i = 0; i < nb_output_streams; i++) {
2461 ost = &output_streams[i];
2462 if (ost) {
2463 if (ost->st->stream_copy)
2464 av_freep(&ost->st->codec->extradata);
2465 if (ost->logfile) {
2466 fclose(ost->logfile);
2467 ost->logfile = NULL;
2468 }
2469 av_fifo_free(ost->fifo); /* works even if fifo is not
2470 initialized but set to zero */
2471 av_freep(&ost->st->codec->subtitle_header);
2472 av_free(ost->pict_tmp.data[0]);
2473 av_free(ost->forced_kf_pts);
2474 if (ost->video_resample)
2475 sws_freeContext(ost->img_resample_ctx);
2476 if (ost->resample)
2477 audio_resample_close(ost->resample);
2478 if (ost->reformat_ctx)
2479 av_audio_convert_free(ost->reformat_ctx);
2480 av_dict_free(&ost->opts);
2481 }
2482 }
2483 }
2484 return ret;
2485 }
2486
2487 static int opt_video_rc_override_string(const char *opt, const char *arg)
2488 {
2489 video_rc_override_string = arg;
2490 return 0;
2491 }
2492
2493 static int opt_me_threshold(const char *opt, const char *arg)
2494 {
2495 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2496 return 0;
2497 }
2498
2499 static int opt_verbose(const char *opt, const char *arg)
2500 {
2501 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2502 return 0;
2503 }
2504
2505 static int opt_frame_rate(const char *opt, const char *arg)
2506 {
2507 if (av_parse_video_rate(&frame_rate, arg) < 0) {
2508 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2509 exit_program(1);
2510 }
2511 return 0;
2512 }
2513
2514 static int opt_frame_size(const char *opt, const char *arg)
2515 {
2516 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2517 fprintf(stderr, "Incorrect frame size\n");
2518 return AVERROR(EINVAL);
2519 }
2520 return 0;
2521 }
2522
2523 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2524 {
2525 if (strcmp(arg, "list")) {
2526 frame_pix_fmt = av_get_pix_fmt(arg);
2527 if (frame_pix_fmt == PIX_FMT_NONE) {
2528 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2529 return AVERROR(EINVAL);
2530 }
2531 } else {
2532 show_pix_fmts();
2533 exit_program(0);
2534 }
2535 return 0;
2536 }
2537
2538 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2539 {
2540 int x = 0, y = 0;
2541 double ar = 0;
2542 const char *p;
2543 char *end;
2544
2545 p = strchr(arg, ':');
2546 if (p) {
2547 x = strtol(arg, &end, 10);
2548 if (end == p)
2549 y = strtol(end+1, &end, 10);
2550 if (x > 0 && y > 0)
2551 ar = (double)x / (double)y;
2552 } else
2553 ar = strtod(arg, NULL);
2554
2555 if (!ar) {
2556 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2557 return AVERROR(EINVAL);
2558 }
2559 frame_aspect_ratio = ar;
2560 return 0;
2561 }
2562
2563 static int opt_qscale(const char *opt, const char *arg)
2564 {
2565 video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2566 if (video_qscale == 0) {
2567 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2568 return AVERROR(EINVAL);
2569 }
2570 return 0;
2571 }
2572
2573 static int opt_top_field_first(const char *opt, const char *arg)
2574 {
2575 top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2576 return 0;
2577 }
2578
2579 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2580 {
2581 if (strcmp(arg, "list")) {
2582 audio_sample_fmt = av_get_sample_fmt(arg);
2583 if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2584 av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2585 return AVERROR(EINVAL);
2586 }
2587 } else {
2588 int i;
2589 char fmt_str[128];
2590 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2591 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2592 exit_program(0);
2593 }
2594 return 0;
2595 }
2596
2597 static int opt_audio_rate(const char *opt, const char *arg)
2598 {
2599 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2600 return 0;
2601 }
2602
2603 static int opt_audio_channels(const char *opt, const char *arg)
2604 {
2605 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2606 return 0;
2607 }
2608
2609 static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
2610 {
2611 return parse_option(o, "codec:a", arg, options);
2612 }
2613
2614 static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
2615 {
2616 return parse_option(o, "codec:v", arg, options);
2617 }
2618
2619 static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
2620 {
2621 return parse_option(o, "codec:s", arg, options);
2622 }
2623
2624 static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
2625 {
2626 return parse_option(o, "codec:d", arg, options);
2627 }
2628
2629 static int opt_codec_tag(const char *opt, const char *arg)
2630 {
2631 char *tail;
2632 uint32_t *codec_tag;
2633
2634 codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2635 !strcmp(opt, "vtag") ? &video_codec_tag :
2636 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2637 if (!codec_tag)
2638 return -1;
2639
2640 *codec_tag = strtol(arg, &tail, 0);
2641 if (!tail || *tail)
2642 *codec_tag = AV_RL32(arg);
2643
2644 return 0;
2645 }
2646
2647 static int opt_map(OptionsContext *o, const char *opt, const char *arg)
2648 {
2649 StreamMap *m = NULL;
2650 int i, negative = 0, file_idx;
2651 int sync_file_idx = -1, sync_stream_idx;
2652 char *p, *sync;
2653 char *map;
2654
2655 if (*arg == '-') {
2656 negative = 1;
2657 arg++;
2658 }
2659 map = av_strdup(arg);
2660
2661 /* parse sync stream first, just pick first matching stream */
2662 if (sync = strchr(map, ',')) {
2663 *sync = 0;
2664 sync_file_idx = strtol(sync + 1, &sync, 0);
2665 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2666 av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2667 exit_program(1);
2668 }
2669 if (*sync)
2670 sync++;
2671 for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
2672 if (check_stream_specifier(input_files[sync_file_idx].ctx,
2673 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2674 sync_stream_idx = i;
2675 break;
2676 }
2677 if (i == input_files[sync_file_idx].nb_streams) {
2678 av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2679 "match any streams.\n", arg);
2680 exit_program(1);
2681 }
2682 }
2683
2684
2685 file_idx = strtol(map, &p, 0);
2686 if (file_idx >= nb_input_files || file_idx < 0) {
2687 av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2688 exit_program(1);
2689 }
2690 if (negative)
2691 /* disable some already defined maps */
2692 for (i = 0; i < o->nb_stream_maps; i++) {
2693 m = &o->stream_maps[i];
2694 if (check_stream_specifier(input_files[m->file_index].ctx,
2695 input_files[m->file_index].ctx->streams[m->stream_index],
2696 *p == ':' ? p + 1 : p) > 0)
2697 m->disabled = 1;
2698 }
2699 else
2700 for (i = 0; i < input_files[file_idx].nb_streams; i++) {
2701 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2702 *p == ':' ? p + 1 : p) <= 0)
2703 continue;
2704 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
2705 &o->nb_stream_maps, o->nb_stream_maps + 1);
2706 m = &o->stream_maps[o->nb_stream_maps - 1];
2707
2708 m->file_index = file_idx;
2709 m->stream_index = i;
2710
2711 if (sync_file_idx >= 0) {
2712 m->sync_file_index = sync_file_idx;
2713 m->sync_stream_index = sync_stream_idx;
2714 } else {
2715 m->sync_file_index = file_idx;
2716 m->sync_stream_index = i;
2717 }
2718 }
2719
2720 if (!m) {
2721 av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2722 exit_program(1);
2723 }
2724
2725 av_freep(&map);
2726 return 0;
2727 }
2728
2729 static void parse_meta_type(char *arg, char *type, int *index)
2730 {
2731 if (*arg) {
2732 *type = *(++arg);
2733 switch (*arg) {
2734 case 'g':
2735 break;
2736 case 's':
2737 case 'c':
2738 case 'p':
2739 if (*(++arg) == ':')
2740 *index = strtol(++arg, NULL, 0);
2741 break;
2742 default:
2743 fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2744 exit_program(1);
2745 }
2746 } else
2747 *type = 'g';
2748 }
2749
2750 static int opt_map_metadata(OptionsContext *o, const char *opt, const char *arg)
2751 {
2752 MetadataMap *m, *m1;
2753 char *p;
2754
2755 o->meta_data_maps = grow_array(o->meta_data_maps, sizeof(*o->meta_data_maps),
2756 &o->nb_meta_data_maps, o->nb_meta_data_maps + 1);
2757
2758 m = &o->meta_data_maps[o->nb_meta_data_maps - 1][1];
2759 m->file = strtol(arg, &p, 0);
2760 parse_meta_type(*p ? p + 1 : p, &m->type, &m->index);
2761
2762 m1 = &o->meta_data_maps[o->nb_meta_data_maps - 1][0];
2763 if (p = strchr(opt, ':'))
2764 parse_meta_type(p + 1, &m1->type, &m1->index);
2765 else
2766 m1->type = 'g';
2767
2768 if (m->type == 'g' || m1->type == 'g')
2769 o->metadata_global_manual = 1;
2770 if (m->type == 's' || m1->type == 's')
2771 o->metadata_streams_manual = 1;
2772 if (m->type == 'c' || m1->type == 'c')
2773 o->metadata_chapters_manual = 1;
2774
2775 return 0;
2776 }
2777
2778 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2779 {
2780 const char *codec_string = encoder ? "encoder" : "decoder";
2781 AVCodec *codec;
2782
2783 if(!name)
2784 return CODEC_ID_NONE;
2785 codec = encoder ?
2786 avcodec_find_encoder_by_name(name) :
2787 avcodec_find_decoder_by_name(name);
2788 if(!codec) {
2789 av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2790 exit_program(1);
2791 }
2792 if(codec->type != type) {
2793 av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2794 exit_program(1);
2795 }
2796 return codec->id;
2797 }
2798
2799 static AVCodec *choose_codec(OptionsContext *o, AVFormatContext *s, AVStream *st, enum AVMediaType type)
2800 {
2801 char *codec_name = NULL;
2802
2803 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
2804
2805 if (!codec_name) {
2806 if (s->oformat) {
2807 st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
2808 return avcodec_find_encoder(st->codec->codec_id);
2809 }
2810 } else if (!strcmp(codec_name, "copy"))
2811 st->stream_copy = 1;
2812 else {
2813 st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
2814 return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
2815 avcodec_find_decoder_by_name(codec_name);
2816 }
2817
2818 return NULL;
2819 }
2820
2821 /**
2822 * Add all the streams from the given input file to the global
2823 * list of input streams.
2824 */
2825 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
2826 {
2827 int i, rfps, rfps_base;
2828
2829 for (i = 0; i < ic->nb_streams; i++) {
2830 AVStream *st = ic->streams[i];
2831 AVCodecContext *dec = st->codec;
2832 InputStream *ist;
2833 double scale = 1.0;
2834
2835 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2836 ist = &input_streams[nb_input_streams - 1];
2837 ist->st = st;
2838 ist->file_index = nb_input_files;
2839 ist->discard = 1;
2840 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2841
2842 MATCH_PER_STREAM_OPT(ts_scale, dbl, scale, ic, st);
2843 ist->ts_scale = scale;
2844
2845 ist->dec = choose_codec(o, ic, st, dec->codec_type);
2846 if (!ist->dec)
2847 ist->dec = avcodec_find_decoder(dec->codec_id);
2848
2849 switch (dec->codec_type) {
2850 case AVMEDIA_TYPE_AUDIO:
2851 if(audio_disable)
2852 st->discard= AVDISCARD_ALL;
2853 break;
2854 case AVMEDIA_TYPE_VIDEO:
2855 rfps = ic->streams[i]->r_frame_rate.num;
2856 rfps_base = ic->streams[i]->r_frame_rate.den;
2857 if (dec->lowres) {
2858 dec->flags |= CODEC_FLAG_EMU_EDGE;
2859 dec->height >>= dec->lowres;
2860 dec->width >>= dec->lowres;
2861 }
2862 if(me_threshold)
2863 dec->debug |= FF_DEBUG_MV;
2864
2865 if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
2866
2867 if (verbose >= 0)
2868 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2869 i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
2870
2871 (float)rfps / rfps_base, rfps, rfps_base);
2872 }
2873
2874 if(video_disable)
2875 st->discard= AVDISCARD_ALL;
2876 else if(video_discard)
2877 st->discard= video_discard;
2878 break;
2879 case AVMEDIA_TYPE_DATA:
2880 break;
2881 case AVMEDIA_TYPE_SUBTITLE:
2882 if(subtitle_disable)
2883 st->discard = AVDISCARD_ALL;
2884 break;
2885 case AVMEDIA_TYPE_ATTACHMENT:
2886 case AVMEDIA_TYPE_UNKNOWN:
2887 break;
2888 default:
2889 abort();
2890 }
2891 }
2892 }
2893
2894 static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
2895 {
2896 AVFormatContext *ic;
2897 AVInputFormat *file_iformat = NULL;
2898 int err, i, ret;
2899 int64_t timestamp;
2900 uint8_t buf[128];
2901 AVDictionary **opts;
2902 int orig_nb_streams; // number of streams before avformat_find_stream_info
2903
2904 if (o->format) {
2905 if (!(file_iformat = av_find_input_format(o->format))) {
2906 fprintf(stderr, "Unknown input format: '%s'\n", o->format);
2907 exit_program(1);
2908 }
2909 }
2910
2911 if (!strcmp(filename, "-"))
2912 filename = "pipe:";
2913
2914 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2915 !strcmp(filename, "/dev/stdin");
2916
2917 /* get default parameters from command line */
2918 ic = avformat_alloc_context();
2919 if (!ic) {
2920 print_error(filename, AVERROR(ENOMEM));
2921 exit_program(1);
2922 }
2923 if (audio_sample_rate) {
2924 snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
2925 av_dict_set(&format_opts, "sample_rate", buf, 0);
2926 }
2927 if (audio_channels) {
2928 snprintf(buf, sizeof(buf), "%d", audio_channels);
2929 av_dict_set(&format_opts, "channels", buf, 0);
2930 }
2931 if (frame_rate.num) {
2932 snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
2933 av_dict_set(&format_opts, "framerate", buf, 0);
2934 }
2935 if (frame_width && frame_height) {
2936 snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
2937 av_dict_set(&format_opts, "video_size", buf, 0);
2938 }
2939 if (frame_pix_fmt != PIX_FMT_NONE)
2940 av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
2941
2942 ic->flags |= AVFMT_FLAG_NONBLOCK;
2943
2944 /* open the input file with generic libav function */
2945 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
2946 if (err < 0) {
2947 print_error(filename, err);
2948 exit_program(1);
2949 }
2950 assert_avoptions(format_opts);
2951
2952 if(opt_programid) {
2953 int i, j;
2954 int found=0;
2955 for(i=0; i<ic->nb_streams; i++){
2956 ic->streams[i]->discard= AVDISCARD_ALL;
2957 }
2958 for(i=0; i<ic->nb_programs; i++){
2959 AVProgram *p= ic->programs[i];
2960 if(p->id != opt_programid){
2961 p->discard = AVDISCARD_ALL;
2962 }else{
2963 found=1;
2964 for(j=0; j<p->nb_stream_indexes; j++){
2965 ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
2966 }
2967 }
2968 }
2969 if(!found){
2970 fprintf(stderr, "Specified program id not found\n");
2971 exit_program(1);
2972 }
2973 opt_programid=0;
2974 }
2975
2976 /* apply forced codec ids */
2977 for (i = 0; i < ic->nb_streams; i++)
2978 choose_codec(o, ic, ic->streams[i], ic->streams[i]->codec->codec_type);
2979
2980 /* Set AVCodecContext options for avformat_find_stream_info */
2981 opts = setup_find_stream_info_opts(ic, codec_opts);
2982 orig_nb_streams = ic->nb_streams;
2983
2984 /* If not enough info to get the stream parameters, we decode the
2985 first frames to get it. (used in mpeg case for example) */
2986 ret = avformat_find_stream_info(ic, opts);
2987 if (ret < 0 && verbose >= 0) {
2988 fprintf(stderr, "%s: could not find codec parameters\n", filename);
2989 av_close_input_file(ic);
2990 exit_program(1);
2991 }
2992
2993 timestamp = o->start_time;
2994 /* add the stream start time */
2995 if (ic->start_time != AV_NOPTS_VALUE)
2996 timestamp += ic->start_time;
2997
2998 /* if seeking requested, we execute it */
2999 if (o->start_time != 0) {
3000 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3001 if (ret < 0) {
3002 fprintf(stderr, "%s: could not seek to position %0.3f\n",
3003 filename, (double)timestamp / AV_TIME_BASE);
3004 }
3005 }
3006
3007 /* update the current parameters so that they match the one of the input stream */
3008 add_input_streams(o, ic);
3009
3010 /* dump the file content */
3011 if (verbose >= 0)
3012 av_dump_format(ic, nb_input_files, filename, 0);
3013
3014 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3015 input_files[nb_input_files - 1].ctx = ic;
3016 input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
3017 input_files[nb_input_files - 1].ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
3018 input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
3019
3020 frame_rate = (AVRational){0, 0};
3021 frame_pix_fmt = PIX_FMT_NONE;
3022 frame_height = 0;
3023 frame_width = 0;
3024 audio_sample_rate = 0;
3025 audio_channels = 0;
3026 audio_sample_fmt = AV_SAMPLE_FMT_NONE;
3027
3028 for (i = 0; i < orig_nb_streams; i++)
3029 av_dict_free(&opts[i]);
3030 av_freep(&opts);
3031
3032 reset_options(o);
3033 return 0;
3034 }
3035
3036 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3037 AVCodecContext *avctx)
3038 {
3039 char *p;
3040 int n = 1, i;
3041 int64_t t;
3042
3043 for (p = kf; *p; p++)
3044 if (*p == ',')
3045 n++;
3046 ost->forced_kf_count = n;
3047 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3048 if (!ost->forced_kf_pts) {
3049 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3050 exit_program(1);
3051 }
3052 for (i = 0; i < n; i++) {
3053 p = i ? strchr(p, ',') + 1 : kf;
3054 t = parse_time_or_die("force_key_frames", p, 1);
3055 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3056 }
3057 }
3058
3059 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
3060 {
3061 OutputStream *ost;
3062 AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3063 int idx = oc->nb_streams - 1;
3064 int64_t max_frames = INT64_MAX;
3065 char *bsf = NULL, *next;
3066 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
3067
3068 if (!st) {
3069 av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
3070 exit_program(1);
3071 }
3072
3073 output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3074 nb_output_streams + 1);
3075 ost = &output_streams[nb_output_streams - 1];
3076 ost->file_index = nb_output_files;
3077 ost->index = idx;
3078 ost->st = st;
3079 st->codec->codec_type = type;
3080 ost->enc = choose_codec(o, oc, st, type);
3081 if (ost->enc) {
3082 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3083 }
3084
3085 avcodec_get_context_defaults3(st->codec, ost->enc);
3086 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3087
3088 MATCH_PER_STREAM_OPT(max_frames, i64, max_frames, oc, st);
3089 ost->max_frames = max_frames;
3090
3091 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
3092 while (bsf) {
3093 if (next = strchr(bsf, ','))
3094 *next++ = 0;
3095 if (!(bsfc = av_bitstream_filter_init(bsf))) {
3096 av_log(NULL, AV_LOG_ERROR, "Unknown bitstream filter %s\n", bsf);
3097 exit_program(1);
3098 }
3099 if (bsfc_prev)
3100 bsfc_prev->next = bsfc;
3101 else
3102 ost->bitstream_filters = bsfc;
3103
3104 bsfc_prev = bsfc;
3105 bsf = next;
3106 }
3107
3108 ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
3109 return ost;
3110 }
3111
3112 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
3113 {
3114 AVStream *st;
3115 OutputStream *ost;
3116 AVCodecContext *video_enc;
3117
3118 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
3119 st = ost->st;
3120 if (!st->stream_copy) {
3121 ost->frame_aspect_ratio = frame_aspect_ratio;
3122 frame_aspect_ratio = 0;
3123 #if CONFIG_AVFILTER
3124 ost->avfilter= vfilters;
3125 vfilters = NULL;
3126 #endif
3127 }
3128
3129 video_enc = st->codec;
3130
3131 if(video_codec_tag)
3132 video_enc->codec_tag= video_codec_tag;
3133
3134 if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3135 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3136 }
3137
3138 if (st->stream_copy) {
3139 video_enc->sample_aspect_ratio =
3140 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3141 } else {
3142 const char *p;
3143 int i;
3144
3145 if (frame_rate.num)
3146 ost->frame_rate = frame_rate;
3147
3148 video_enc->width = frame_width;
3149 video_enc->height = frame_height;
3150 video_enc->pix_fmt = frame_pix_fmt;
3151 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3152
3153 if (video_qscale || same_quant) {
3154 video_enc->flags |= CODEC_FLAG_QSCALE;
3155 video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3156 }
3157
3158 if(intra_matrix)
3159 video_enc->intra_matrix = intra_matrix;
3160 if(inter_matrix)
3161 video_enc->inter_matrix = inter_matrix;
3162
3163 p= video_rc_override_string;
3164 for(i=0; p; i++){
3165 int start, end, q;
3166 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3167 if(e!=3){
3168 fprintf(stderr, "error parsing rc_override\n");
3169 exit_program(1);
3170 }
3171 video_enc->rc_override=
3172 av_realloc(video_enc->rc_override,
3173 sizeof(RcOverride)*(i+1));
3174 video_enc->rc_override[i].start_frame= start;
3175 video_enc->rc_override[i].end_frame = end;
3176 if(q>0){
3177 video_enc->rc_override[i].qscale= q;
3178 video_enc->rc_override[i].quality_factor= 1.0;
3179 }
3180 else{
3181 video_enc->rc_override[i].qscale= 0;
3182 video_enc->rc_override[i].quality_factor= -q/100.0;
3183 }
3184 p= strchr(p, '/');
3185 if(p) p++;
3186 }
3187 video_enc->rc_override_count=i;
3188 if (!video_enc->rc_initial_buffer_occupancy)
3189 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3190 video_enc->me_threshold= me_threshold;
3191 video_enc->intra_dc_precision= intra_dc_precision - 8;
3192
3193 if (do_psnr)
3194 video_enc->flags|= CODEC_FLAG_PSNR;
3195
3196 /* two pass mode */
3197 if (do_pass) {
3198 if (do_pass == 1) {
3199 video_enc->flags |= CODEC_FLAG_PASS1;
3200 } else {
3201 video_enc->flags |= CODEC_FLAG_PASS2;
3202 }
3203 }
3204
3205 if (forced_key_frames)
3206 parse_forced_key_frames(forced_key_frames, ost, video_enc);
3207 }
3208 if (video_language) {
3209 av_dict_set(&st->metadata, "language", video_language, 0);
3210 av_freep(&video_language);
3211 }
3212
3213 /* reset some key parameters */
3214 video_disable = 0;
3215 av_freep(&forced_key_frames);
3216 frame_pix_fmt = PIX_FMT_NONE;
3217 return ost;
3218 }
3219
3220 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc)
3221 {
3222 AVStream *st;
3223 OutputStream *ost;
3224 AVCodecContext *audio_enc;
3225
3226 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO);
3227 st = ost->st;
3228
3229 audio_enc = st->codec;
3230 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3231
3232 if(audio_codec_tag)
3233 audio_enc->codec_tag= audio_codec_tag;
3234
3235 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3236 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3237 }
3238 if (!st->stream_copy) {
3239 if (audio_qscale > QSCALE_NONE) {
3240 audio_enc->flags |= CODEC_FLAG_QSCALE;
3241 audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3242 }
3243 if (audio_channels)
3244 audio_enc->channels = audio_channels;
3245 if (audio_sample_fmt != AV_SAMPLE_FMT_NONE)
3246 audio_enc->sample_fmt = audio_sample_fmt;
3247 if (audio_sample_rate)
3248 audio_enc->sample_rate = audio_sample_rate;
3249 }
3250 if (audio_language) {
3251 av_dict_set(&st->metadata, "language", audio_language, 0);
3252 av_freep(&audio_language);
3253 }
3254
3255 /* reset some key parameters */
3256 audio_disable = 0;
3257
3258 return ost;
3259 }
3260
3261 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc)
3262 {
3263 AVStream *st;
3264 OutputStream *ost;
3265 AVCodecContext *data_enc;
3266
3267 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA);
3268 st = ost->st;
3269 data_enc = st->codec;
3270 if (!st->stream_copy) {
3271 fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3272 exit_program(1);
3273 }
3274
3275 if (data_codec_tag)
3276 data_enc->codec_tag= data_codec_tag;
3277
3278 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3279 data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3280 }
3281
3282 data_disable = 0;
3283 return ost;
3284 }
3285
3286 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc)
3287 {
3288 AVStream *st;
3289 OutputStream *ost;
3290 AVCodecContext *subtitle_enc;
3291
3292 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE);
3293 st = ost->st;
3294 subtitle_enc = st->codec;
3295
3296 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3297
3298 if(subtitle_codec_tag)
3299 subtitle_enc->codec_tag= subtitle_codec_tag;
3300
3301 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3302 subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3303 }
3304
3305 if (subtitle_language) {
3306 av_dict_set(&st->metadata, "language", subtitle_language, 0);
3307 av_freep(&subtitle_language);
3308 }
3309
3310 subtitle_disable = 0;
3311 return ost;
3312 }
3313
3314 /* arg format is "output-stream-index:streamid-value". */
3315 static int opt_streamid(const char *opt, const char *arg)
3316 {
3317 int idx;
3318 char *p;
3319 char idx_str[16];
3320
3321 av_strlcpy(idx_str, arg, sizeof(idx_str));
3322 p = strchr(idx_str, ':');
3323 if (!p) {
3324 fprintf(stderr,
3325 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3326 arg, opt);
3327 exit_program(1);
3328 }
3329 *p++ = '\0';
3330 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
3331 streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
3332 streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3333 return 0;
3334 }
3335
3336 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
3337 {
3338 AVFormatContext *is = ifile->ctx;
3339 AVFormatContext *os = ofile->ctx;
3340 int i;
3341
3342 for (i = 0; i < is->nb_chapters; i++) {
3343 AVChapter *in_ch = is->chapters[i], *out_ch;
3344 int64_t ts_off = av_rescale_q(ofile->start_time - ifile->ts_offset,
3345 AV_TIME_BASE_Q, in_ch->time_base);
3346 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
3347 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
3348
3349
3350 if (in_ch->end < ts_off)
3351 continue;
3352 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
3353 break;
3354
3355 out_ch = av_mallocz(sizeof(AVChapter));
3356 if (!out_ch)
3357 return AVERROR(ENOMEM);
3358
3359 out_ch->id = in_ch->id;
3360 out_ch->time_base = in_ch->time_base;
3361 out_ch->start = FFMAX(0, in_ch->start - ts_off);
3362 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
3363
3364 if (copy_metadata)
3365 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
3366
3367 os->nb_chapters++;
3368 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
3369 if (!os->chapters)
3370 return AVERROR(ENOMEM);
3371 os->chapters[os->nb_chapters - 1] = out_ch;
3372 }
3373 return 0;
3374 }
3375
3376 static int read_avserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
3377 {
3378 int i, err;
3379 AVFormatContext *ic = NULL;
3380
3381 err = avformat_open_input(&ic, filename, NULL, NULL);
3382 if (err < 0)
3383 return err;
3384 /* copy stream format */
3385 for(i=0;i<ic->nb_streams;i++) {
3386 AVStream *st;
3387 OutputStream *ost;
3388 AVCodec *codec;
3389
3390 codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
3391 ost = new_output_stream(o, s, codec->type);
3392 st = ost->st;
3393
3394 // FIXME: a more elegant solution is needed
3395 memcpy(st, ic->streams[i], sizeof(AVStream));
3396 st->info = NULL;
3397 avcodec_copy_context(st->codec, ic->streams[i]->codec);
3398
3399 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !st->stream_copy)
3400 choose_sample_fmt(st, codec);
3401 else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !st->stream_copy)
3402 choose_pixel_fmt(st, codec);
3403 }
3404
3405 av_close_input_file(ic);
3406 return 0;
3407 }
3408
3409 static void opt_output_file(void *optctx, const char *filename)
3410 {
3411 OptionsContext *o = optctx;
3412 AVFormatContext *oc;
3413 int i, err;
3414 AVOutputFormat *file_oformat;
3415 OutputStream *ost;
3416 InputStream *ist;
3417
3418 if (!strcmp(filename, "-"))
3419 filename = "pipe:";
3420
3421 oc = avformat_alloc_context();
3422 if (!oc) {
3423 print_error(filename, AVERROR(ENOMEM));
3424 exit_program(1);
3425 }
3426
3427 if (o->format) {
3428 file_oformat = av_guess_format(o->format, NULL, NULL);
3429 if (!file_oformat) {
3430 fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", o->format);
3431 exit_program(1);
3432 }
3433 } else {
3434 file_oformat = av_guess_format(NULL, filename, NULL);
3435 if (!file_oformat) {
3436 fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3437 filename);
3438 exit_program(1);
3439 }
3440 }
3441
3442 oc->oformat = file_oformat;
3443 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3444
3445 if (!strcmp(file_oformat->name, "ffm") &&
3446 av_strstart(filename, "http:", NULL)) {
3447 /* special case for files sent to avserver: we get the stream
3448 parameters from avserver */
3449 int err = read_avserver_streams(o, oc, filename);
3450 if (err < 0) {
3451 print_error(filename, err);
3452 exit_program(1);
3453 }
3454 } else if (!o->nb_stream_maps) {
3455 /* pick the "best" stream of each type */
3456 #define NEW_STREAM(type, index)\
3457 if (index >= 0) {\
3458 ost = new_ ## type ## _stream(o, oc);\
3459 ost->source_index = index;\
3460 ost->sync_ist = &input_streams[index];\
3461 input_streams[index].discard = 0;\
3462 }
3463
3464 /* video: highest resolution */
3465 if (!video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
3466 int area = 0, idx = -1;
3467 for (i = 0; i < nb_input_streams; i++) {
3468 ist = &input_streams[i];
3469 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3470 ist->st->codec->width * ist->st->codec->height > area) {
3471 area = ist->st->codec->width * ist->st->codec->height;
3472 idx = i;
3473 }
3474 }
3475 NEW_STREAM(video, idx);
3476 }
3477
3478 /* audio: most channels */
3479 if (!audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
3480 int channels = 0, idx = -1;
3481 for (i = 0; i < nb_input_streams; i++) {
3482 ist = &input_streams[i];
3483 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
3484 ist->st->codec->channels > channels) {
3485 channels = ist->st->codec->channels;
3486 idx = i;
3487 }
3488 }
3489 NEW_STREAM(audio, idx);
3490 }
3491
3492 /* subtitles: pick first */
3493 if (!subtitle_disable && oc->oformat->subtitle_codec != CODEC_ID_NONE) {
3494 for (i = 0; i < nb_input_streams; i++)
3495 if (input_streams[i].st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3496 NEW_STREAM(subtitle, i);
3497 break;
3498 }
3499 }
3500 /* do something with data? */
3501 } else {
3502 for (i = 0; i < o->nb_stream_maps; i++) {
3503 StreamMap *map = &o->stream_maps[i];
3504
3505 if (map->disabled)
3506 continue;
3507
3508 ist = &input_streams[input_files[map->file_index].ist_index + map->stream_index];
3509 switch (ist->st->codec->codec_type) {
3510 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc); break;
3511 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc); break;
3512 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(o, oc); break;
3513 case AVMEDIA_TYPE_DATA: ost = new_data_stream(o, oc); break;
3514 default:
3515 av_log(NULL, AV_LOG_ERROR, "Cannot map stream #%d.%d - unsupported type.\n",
3516 map->file_index, map->stream_index);
3517 exit_program(1);
3518 }
3519
3520 ost->source_index = input_files[map->file_index].ist_index + map->stream_index;
3521 ost->sync_ist = &input_streams[input_files[map->sync_file_index].ist_index +
3522 map->sync_stream_index];
3523 ist->discard = 0;
3524 }
3525 }
3526
3527 output_files = grow_array(output_files, sizeof(*output_files), &nb_output_files, nb_output_files + 1);
3528 output_files[nb_output_files - 1].ctx = oc;
3529 output_files[nb_output_files - 1].ost_index = nb_output_streams - oc->nb_streams;
3530 output_files[nb_output_files - 1].recording_time = o->recording_time;
3531 output_files[nb_output_files - 1].start_time = o->start_time;
3532 output_files[nb_output_files - 1].limit_filesize = o->limit_filesize;
3533 av_dict_copy(&output_files[nb_output_files - 1].opts, format_opts, 0);
3534
3535 /* check filename in case of an image number is expected */
3536 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3537 if (!av_filename_number_test(oc->filename)) {
3538 print_error(oc->filename, AVERROR(EINVAL));
3539 exit_program(1);
3540 }
3541 }
3542
3543 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
3544 /* test if it already exists to avoid loosing precious files */
3545 if (!file_overwrite &&
3546 (strchr(filename, ':') == NULL ||
3547 filename[1] == ':' ||
3548 av_strstart(filename, "file:", NULL))) {
3549 if (avio_check(filename, 0) == 0) {
3550 if (!using_stdin) {
3551 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3552 fflush(stderr);
3553 if (!read_yesno()) {
3554 fprintf(stderr, "Not overwriting - exiting\n");
3555 exit_program(1);
3556 }
3557 }
3558 else {
3559 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3560 exit_program(1);
3561 }
3562 }
3563 }
3564
3565 /* open the file */
3566 if ((err = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE)) < 0) {
3567 print_error(filename, err);
3568 exit_program(1);
3569 }
3570 }
3571
3572 oc->preload= (int)(mux_preload*AV_TIME_BASE);
3573 oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
3574 oc->flags |= AVFMT_FLAG_NONBLOCK;
3575
3576 /* copy chapters */
3577 if (o->chapters_input_file >= nb_input_files) {
3578 if (o->chapters_input_file == INT_MAX) {
3579 /* copy chapters from the first input file that has them*/
3580 o->chapters_input_file = -1;
3581 for (i = 0; i < nb_input_files; i++)
3582 if (input_files[i].ctx->nb_chapters) {
3583 o->chapters_input_file = i;
3584 break;
3585 }
3586 } else {
3587 av_log(NULL, AV_LOG_ERROR, "Invalid input file index %d in chapter mapping.\n",
3588 o->chapters_input_file);
3589 exit_program(1);
3590 }
3591 }
3592 if (o->chapters_input_file >= 0)
3593 copy_chapters(&input_files[o->chapters_input_file], &output_files[nb_output_files - 1],
3594 o->metadata_chapters_manual);
3595
3596 /* copy metadata */
3597 for (i = 0; i < o->nb_meta_data_maps; i++) {
3598 AVFormatContext *files[2];
3599 AVDictionary **meta[2];
3600 int j;
3601
3602 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3603 if ((index) < 0 || (index) >= (nb_elems)) {\
3604 av_log(NULL, AV_LOG_ERROR, "Invalid %s index %d while processing metadata maps\n",\
3605 (desc), (index));\
3606 exit_program(1);\
3607 }
3608
3609 int in_file_index = o->meta_data_maps[i][1].file;
3610 if (in_file_index < 0)
3611 continue;
3612 METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
3613
3614 files[0] = oc;
3615 files[1] = input_files[in_file_index].ctx;
3616
3617 for (j = 0; j < 2; j++) {
3618 MetadataMap *map = &o->meta_data_maps[i][j];
3619
3620 switch (map->type) {
3621 case 'g':
3622 meta[j] = &files[j]->metadata;
3623 break;
3624 case 's':
3625 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
3626 meta[j] = &files[j]->streams[map->index]->metadata;
3627 break;
3628 case 'c':
3629 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
3630 meta[j] = &files[j]->chapters[map->index]->metadata;
3631 break;
3632 case 'p':
3633 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
3634 meta[j] = &files[j]->programs[map->index]->metadata;
3635 break;
3636 }
3637 }
3638
3639 av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
3640 }
3641
3642 /* copy global metadata by default */
3643 if (!o->metadata_global_manual && nb_input_files)
3644 av_dict_copy(&oc->metadata, input_files[0].ctx->metadata,
3645 AV_DICT_DONT_OVERWRITE);
3646 if (!o->metadata_streams_manual)
3647 for (i = output_files[nb_output_files - 1].ost_index; i < nb_output_streams; i++) {
3648 InputStream *ist = &input_streams[output_streams[i].source_index];
3649 av_dict_copy(&output_streams[i].st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
3650 }
3651
3652 /* process manually set metadata */
3653 for (i = 0; i < o->nb_metadata; i++) {
3654 AVDictionary **m;
3655 char type, *val;
3656 int index = 0;
3657
3658 val = strchr(o->metadata[i].u.str, '=');
3659 if (!val) {
3660 av_log(NULL, AV_LOG_ERROR, "No '=' character in metadata string %s.\n",
3661 o->metadata[i].u.str);
3662 exit_program(1);
3663 }
3664 *val++ = 0;
3665
3666 parse_meta_type(o->metadata[i].specifier, &type, &index);
3667 switch (type) {
3668 case 'g':
3669 m = &oc->