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