avconv: change semantics of -map
[libav.git] / avconv.c
1 /*
2 * avconv main
3 * Copyright (c) 2000-2011 The libav developers.
4 *
5 * This file is part of Libav.
6 *
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include "config.h"
23 #include <ctype.h>
24 #include <string.h>
25 #include <math.h>
26 #include <stdlib.h>
27 #include <errno.h>
28 #include <signal.h>
29 #include <limits.h>
30 #include <unistd.h>
31 #include "libavformat/avformat.h"
32 #include "libavdevice/avdevice.h"
33 #include "libswscale/swscale.h"
34 #include "libavutil/opt.h"
35 #include "libavcodec/audioconvert.h"
36 #include "libavutil/audioconvert.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavformat/os_support.h"
48
49 #if CONFIG_AVFILTER
50 # include "libavfilter/avfilter.h"
51 # include "libavfilter/avfiltergraph.h"
52 # include "libavfilter/vsrc_buffer.h"
53 #endif
54
55 #if HAVE_SYS_RESOURCE_H
56 #include <sys/types.h>
57 #include <sys/time.h>
58 #include <sys/resource.h>
59 #elif HAVE_GETPROCESSTIMES
60 #include <windows.h>
61 #endif
62 #if HAVE_GETPROCESSMEMORYINFO
63 #include <windows.h>
64 #include <psapi.h>
65 #endif
66
67 #if HAVE_SYS_SELECT_H
68 #include <sys/select.h>
69 #endif
70
71 #include <time.h>
72
73 #include "cmdutils.h"
74
75 #include "libavutil/avassert.h"
76
77 const char program_name[] = "avconv";
78 const int program_birth_year = 2000;
79
80 /* select an input stream for an output stream */
81 typedef struct StreamMap {
82 int disabled; /** 1 is this mapping is disabled by a negative map */
83 int file_index;
84 int stream_index;
85 int sync_file_index;
86 int sync_stream_index;
87 } StreamMap;
88
89 /**
90 * select an input file for an output file
91 */
92 typedef struct MetadataMap {
93 int file; //< file index
94 char type; //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
95 int index; //< stream/chapter/program number
96 } MetadataMap;
97
98 static const OptionDef options[];
99
100 #define MAX_FILES 100
101
102 static const char *last_asked_format = NULL;
103 static double *ts_scale;
104 static int nb_ts_scale;
105
106 static AVFormatContext *output_files[MAX_FILES];
107 static AVDictionary *output_opts[MAX_FILES];
108 static int nb_output_files = 0;
109
110 static StreamMap *stream_maps = NULL;
111 static int nb_stream_maps;
112
113 /* first item specifies output metadata, second is input */
114 static MetadataMap (*meta_data_maps)[2] = NULL;
115 static int nb_meta_data_maps;
116 static int metadata_global_autocopy = 1;
117 static int metadata_streams_autocopy = 1;
118 static int metadata_chapters_autocopy = 1;
119
120 static int chapters_input_file = INT_MAX;
121
122 /* indexed by output file stream index */
123 static int *streamid_map = NULL;
124 static int nb_streamid_map = 0;
125
126 static int frame_width = 0;
127 static int frame_height = 0;
128 static float frame_aspect_ratio = 0;
129 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
130 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
131 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
132 static AVRational frame_rate;
133 static float video_qscale = 0;
134 static uint16_t *intra_matrix = NULL;
135 static uint16_t *inter_matrix = NULL;
136 static const char *video_rc_override_string=NULL;
137 static int video_disable = 0;
138 static int video_discard = 0;
139 static char *video_codec_name = NULL;
140 static unsigned int video_codec_tag = 0;
141 static char *video_language = NULL;
142 static int same_quality = 0;
143 static int do_deinterlace = 0;
144 static int top_field_first = -1;
145 static int me_threshold = 0;
146 static int intra_dc_precision = 8;
147 static int qp_hist = 0;
148 #if CONFIG_AVFILTER
149 static char *vfilters = NULL;
150 #endif
151
152 static int intra_only = 0;
153 static int audio_sample_rate = 0;
154 #define QSCALE_NONE -99999
155 static float audio_qscale = QSCALE_NONE;
156 static int audio_disable = 0;
157 static int audio_channels = 0;
158 static char *audio_codec_name = NULL;
159 static unsigned int audio_codec_tag = 0;
160 static char *audio_language = NULL;
161
162 static int subtitle_disable = 0;
163 static char *subtitle_codec_name = NULL;
164 static char *subtitle_language = NULL;
165 static unsigned int subtitle_codec_tag = 0;
166
167 static int data_disable = 0;
168 static char *data_codec_name = NULL;
169 static unsigned int data_codec_tag = 0;
170
171 static float mux_preload= 0.5;
172 static float mux_max_delay= 0.7;
173
174 static int64_t recording_time = INT64_MAX;
175 static int64_t start_time = 0;
176 static int64_t input_ts_offset = 0;
177 static int file_overwrite = 0;
178 static AVDictionary *metadata;
179 static int do_benchmark = 0;
180 static int do_hex_dump = 0;
181 static int do_pkt_dump = 0;
182 static int do_psnr = 0;
183 static int do_pass = 0;
184 static char *pass_logfilename_prefix = NULL;
185 static int audio_stream_copy = 0;
186 static int video_stream_copy = 0;
187 static int subtitle_stream_copy = 0;
188 static int data_stream_copy = 0;
189 static int video_sync_method= -1;
190 static int audio_sync_method= 0;
191 static float audio_drift_threshold= 0.1;
192 static int copy_ts= 0;
193 static int copy_tb;
194 static int opt_shortest = 0;
195 static char *vstats_filename;
196 static FILE *vstats_file;
197 static int opt_programid = 0;
198 static int copy_initial_nonkeyframes = 0;
199
200 static int rate_emu = 0;
201
202 static int audio_volume = 256;
203
204 static int exit_on_error = 0;
205 static int using_stdin = 0;
206 static int verbose = 1;
207 static int thread_count= 1;
208 static int64_t video_size = 0;
209 static int64_t audio_size = 0;
210 static int64_t extra_size = 0;
211 static int nb_frames_dup = 0;
212 static int nb_frames_drop = 0;
213 static int input_sync;
214 static uint64_t limit_filesize = 0;
215 static int force_fps = 0;
216 static char *forced_key_frames = NULL;
217
218 static float dts_delta_threshold = 10;
219
220 static int64_t timer_start;
221
222 static uint8_t *audio_buf;
223 static uint8_t *audio_out;
224 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
225
226 static short *samples;
227
228 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
229 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
230 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
231
232 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
233
234 struct InputStream;
235
236 typedef struct OutputStream {
237 int file_index; /* file index */
238 int index; /* stream index in the output file */
239 int source_index; /* InputStream index */
240 AVStream *st; /* stream in the output file */
241 int encoding_needed; /* true if encoding needed for this stream */
242 int frame_number;
243 /* input pts and corresponding output pts
244 for A/V sync */
245 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
246 struct InputStream *sync_ist; /* input stream to sync against */
247 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
248 AVBitStreamFilterContext *bitstream_filters;
249 AVCodec *enc;
250
251 /* video only */
252 int video_resample;
253 AVFrame pict_tmp; /* temporary image for resampling */
254 struct SwsContext *img_resample_ctx; /* for image resampling */
255 int resample_height;
256 int resample_width;
257 int resample_pix_fmt;
258 AVRational frame_rate;
259
260 float frame_aspect_ratio;
261
262 /* forced key frames */
263 int64_t *forced_kf_pts;
264 int forced_kf_count;
265 int forced_kf_index;
266
267 /* audio only */
268 int audio_resample;
269 ReSampleContext *resample; /* for audio resampling */
270 int resample_sample_fmt;
271 int resample_channels;
272 int resample_sample_rate;
273 int reformat_pair;
274 AVAudioConvert *reformat_ctx;
275 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
276 FILE *logfile;
277
278 #if CONFIG_AVFILTER
279 AVFilterContext *output_video_filter;
280 AVFilterContext *input_video_filter;
281 AVFilterBufferRef *picref;
282 char *avfilter;
283 AVFilterGraph *graph;
284 #endif
285
286 int sws_flags;
287 AVDictionary *opts;
288 } OutputStream;
289
290 static OutputStream **output_streams_for_file[MAX_FILES] = { NULL };
291 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
292
293 typedef struct InputStream {
294 int file_index;
295 AVStream *st;
296 int discard; /* true if stream data should be discarded */
297 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
298 AVCodec *dec;
299
300 int64_t start; /* time when read started */
301 int64_t next_pts; /* synthetic pts for cases where pkt.pts
302 is not defined */
303 int64_t pts; /* current pts */
304 PtsCorrectionContext pts_ctx;
305 double ts_scale;
306 int is_start; /* is 1 at the start and after a discontinuity */
307 int showed_multi_packet_warning;
308 int is_past_recording_time;
309 AVDictionary *opts;
310 } InputStream;
311
312 typedef struct InputFile {
313 AVFormatContext *ctx;
314 int eof_reached; /* true if eof reached */
315 int ist_index; /* index of first stream in ist_table */
316 int buffer_size; /* current total buffer size */
317 int64_t ts_offset;
318 } InputFile;
319
320 static InputStream *input_streams = NULL;
321 static int nb_input_streams = 0;
322 static InputFile *input_files = NULL;
323 static int nb_input_files = 0;
324
325 #if CONFIG_AVFILTER
326
327 static int configure_video_filters(InputStream *ist, OutputStream *ost)
328 {
329 AVFilterContext *last_filter, *filter;
330 /** filter graph containing all filters including input & output */
331 AVCodecContext *codec = ost->st->codec;
332 AVCodecContext *icodec = ist->st->codec;
333 FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
334 AVRational sample_aspect_ratio;
335 char args[255];
336 int ret;
337
338 ost->graph = avfilter_graph_alloc();
339
340 if (ist->st->sample_aspect_ratio.num){
341 sample_aspect_ratio = ist->st->sample_aspect_ratio;
342 }else
343 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
344
345 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
346 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
347 sample_aspect_ratio.num, sample_aspect_ratio.den);
348
349 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
350 "src", args, NULL, ost->graph);
351 if (ret < 0)
352 return ret;
353 ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
354 "out", NULL, &ffsink_ctx, ost->graph);
355 if (ret < 0)
356 return ret;
357 last_filter = ost->input_video_filter;
358
359 if (codec->width != icodec->width || codec->height != icodec->height) {
360 snprintf(args, 255, "%d:%d:flags=0x%X",
361 codec->width,
362 codec->height,
363 ost->sws_flags);
364 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
365 NULL, args, NULL, ost->graph)) < 0)
366 return ret;
367 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
368 return ret;
369 last_filter = filter;
370 }
371
372 snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
373 ost->graph->scale_sws_opts = av_strdup(args);
374
375 if (ost->avfilter) {
376 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
377 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
378
379 outputs->name = av_strdup("in");
380 outputs->filter_ctx = last_filter;
381 outputs->pad_idx = 0;
382 outputs->next = NULL;
383
384 inputs->name = av_strdup("out");
385 inputs->filter_ctx = ost->output_video_filter;
386 inputs->pad_idx = 0;
387 inputs->next = NULL;
388
389 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
390 return ret;
391 av_freep(&ost->avfilter);
392 } else {
393 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
394 return ret;
395 }
396
397 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
398 return ret;
399
400 codec->width = ost->output_video_filter->inputs[0]->w;
401 codec->height = ost->output_video_filter->inputs[0]->h;
402 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
403 ost->frame_aspect_ratio ? // overriden by the -aspect cli option
404 av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
405 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
406
407 return 0;
408 }
409 #endif /* CONFIG_AVFILTER */
410
411 static void term_exit(void)
412 {
413 av_log(NULL, AV_LOG_QUIET, "");
414 }
415
416 static volatile int received_sigterm = 0;
417 static volatile int received_nb_signals = 0;
418
419 static void
420 sigterm_handler(int sig)
421 {
422 received_sigterm = sig;
423 received_nb_signals++;
424 term_exit();
425 }
426
427 static void term_init(void)
428 {
429 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
430 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
431 #ifdef SIGXCPU
432 signal(SIGXCPU, sigterm_handler);
433 #endif
434 }
435
436 static int decode_interrupt_cb(void)
437 {
438 return received_nb_signals > 1;
439 }
440
441 static int exit_program(int ret)
442 {
443 int i;
444
445 /* close files */
446 for(i=0;i<nb_output_files;i++) {
447 AVFormatContext *s = output_files[i];
448 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
449 avio_close(s->pb);
450 avformat_free_context(s);
451 av_free(output_streams_for_file[i]);
452 av_dict_free(&output_opts[i]);
453 }
454 for(i=0;i<nb_input_files;i++) {
455 av_close_input_file(input_files[i].ctx);
456 }
457 for (i = 0; i < nb_input_streams; i++)
458 av_dict_free(&input_streams[i].opts);
459
460 av_free(intra_matrix);
461 av_free(inter_matrix);
462
463 if (vstats_file)
464 fclose(vstats_file);
465 av_free(vstats_filename);
466
467 av_free(streamid_map);
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 {
1951 int ret = 0, i, j, k, n, nb_ostreams = 0;
1952 AVFormatContext *is, *os;
1953 AVCodecContext *codec, *icodec;
1954 OutputStream *ost, **ost_table = NULL;
1955 InputStream *ist;
1956 char error[1024];
1957 int want_sdp = 1;
1958 uint8_t no_packet[MAX_FILES]={0};
1959 int no_packet_count=0;
1960
1961 if (rate_emu)
1962 for (i = 0; i < nb_input_streams; i++)
1963 input_streams[i].start = av_gettime();
1964
1965 /* output stream init */
1966 nb_ostreams = 0;
1967 for(i=0;i<nb_output_files;i++) {
1968 os = output_files[i];
1969 if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1970 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1971 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1972 ret = AVERROR(EINVAL);
1973 goto fail;
1974 }
1975 nb_ostreams += os->nb_streams;
1976 }
1977
1978 ost_table = av_mallocz(sizeof(OutputStream *) * nb_ostreams);
1979 if (!ost_table)
1980 goto fail;
1981 n = 0;
1982 for(k=0;k<nb_output_files;k++) {
1983 os = output_files[k];
1984 for (i = 0; i < os->nb_streams; i++, n++)
1985 ost_table[n] = output_streams_for_file[k][i];
1986 }
1987
1988 /* for each output stream, we compute the right encoding parameters */
1989 for(i=0;i<nb_ostreams;i++) {
1990 ost = ost_table[i];
1991 os = output_files[ost->file_index];
1992 ist = &input_streams[ost->source_index];
1993
1994 codec = ost->st->codec;
1995 icodec = ist->st->codec;
1996
1997 ost->st->disposition = ist->st->disposition;
1998 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1999 codec->chroma_sample_location = icodec->chroma_sample_location;
2000
2001 if (ost->st->stream_copy) {
2002 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2003
2004 if (extra_size > INT_MAX)
2005 goto fail;
2006
2007 /* if stream_copy is selected, no need to decode or encode */
2008 codec->codec_id = icodec->codec_id;
2009 codec->codec_type = icodec->codec_type;
2010
2011 if(!codec->codec_tag){
2012 if( !os->oformat->codec_tag
2013 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2014 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2015 codec->codec_tag = icodec->codec_tag;
2016 }
2017
2018 codec->bit_rate = icodec->bit_rate;
2019 codec->rc_max_rate = icodec->rc_max_rate;
2020 codec->rc_buffer_size = icodec->rc_buffer_size;
2021 codec->extradata= av_mallocz(extra_size);
2022 if (!codec->extradata)
2023 goto fail;
2024 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2025 codec->extradata_size= icodec->extradata_size;
2026 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){
2027 codec->time_base = icodec->time_base;
2028 codec->time_base.num *= icodec->ticks_per_frame;
2029 av_reduce(&codec->time_base.num, &codec->time_base.den,
2030 codec->time_base.num, codec->time_base.den, INT_MAX);
2031 }else
2032 codec->time_base = ist->st->time_base;
2033 switch(codec->codec_type) {
2034 case AVMEDIA_TYPE_AUDIO:
2035 if(audio_volume != 256) {
2036 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2037 exit_program(1);
2038 }
2039 codec->channel_layout = icodec->channel_layout;
2040 codec->sample_rate = icodec->sample_rate;
2041 codec->channels = icodec->channels;
2042 codec->frame_size = icodec->frame_size;
2043 codec->audio_service_type = icodec->audio_service_type;
2044 codec->block_align= icodec->block_align;
2045 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2046 codec->block_align= 0;
2047 if(codec->codec_id == CODEC_ID_AC3)
2048 codec->block_align= 0;
2049 break;
2050 case AVMEDIA_TYPE_VIDEO:
2051 codec->pix_fmt = icodec->pix_fmt;
2052 codec->width = icodec->width;
2053 codec->height = icodec->height;
2054 codec->has_b_frames = icodec->has_b_frames;
2055 if (!codec->sample_aspect_ratio.num) {
2056 codec->sample_aspect_ratio =
2057 ost->st->sample_aspect_ratio =
2058 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2059 ist->st->codec->sample_aspect_ratio.num ?
2060 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2061 }
2062 break;
2063 case AVMEDIA_TYPE_SUBTITLE:
2064 codec->width = icodec->width;
2065 codec->height = icodec->height;
2066 break;
2067 case AVMEDIA_TYPE_DATA:
2068 break;
2069 default:
2070 abort();
2071 }
2072 } else {
2073 if (!ost->enc)
2074 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2075 switch(codec->codec_type) {
2076 case AVMEDIA_TYPE_AUDIO:
2077 ost->fifo= av_fifo_alloc(1024);
2078 if(!ost->fifo)
2079 goto fail;
2080 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2081 if (!codec->sample_rate) {
2082 codec->sample_rate = icodec->sample_rate;
2083 if (icodec->lowres)
2084 codec->sample_rate >>= icodec->lowres;
2085 }
2086 choose_sample_rate(ost->st, ost->enc);
2087 codec->time_base = (AVRational){1, codec->sample_rate};
2088 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2089 codec->sample_fmt = icodec->sample_fmt;
2090 choose_sample_fmt(ost->st, ost->enc);
2091 if (!codec->channels)
2092 codec->channels = icodec->channels;
2093 codec->channel_layout = icodec->channel_layout;
2094 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2095 codec->channel_layout = 0;
2096 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2097 icodec->request_channels = codec->channels;
2098 ist->decoding_needed = 1;
2099 ost->encoding_needed = 1;
2100 ost->resample_sample_fmt = icodec->sample_fmt;
2101 ost->resample_sample_rate = icodec->sample_rate;
2102 ost->resample_channels = icodec->channels;
2103 break;
2104 case AVMEDIA_TYPE_VIDEO:
2105 if (codec->pix_fmt == PIX_FMT_NONE)
2106 codec->pix_fmt = icodec->pix_fmt;
2107 choose_pixel_fmt(ost->st, ost->enc);
2108
2109 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2110 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2111 exit_program(1);
2112 }
2113
2114 if (!codec->width || !codec->height) {
2115 codec->width = icodec->width;
2116 codec->height = icodec->height;
2117 }
2118
2119 ost->video_resample = codec->width != icodec->width ||
2120 codec->height != icodec->height ||
2121 codec->pix_fmt != icodec->pix_fmt;
2122 if (ost->video_resample) {
2123 #if !CONFIG_AVFILTER
2124 avcodec_get_frame_defaults(&ost->pict_tmp);
2125 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2126 codec->width, codec->height)) {
2127 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2128 exit_program(1);
2129 }
2130 ost->img_resample_ctx = sws_getContext(
2131 icodec->width,
2132 icodec->height,
2133 icodec->pix_fmt,
2134 codec->width,
2135 codec->height,
2136 codec->pix_fmt,
2137 ost->sws_flags, NULL, NULL, NULL);
2138 if (ost->img_resample_ctx == NULL) {
2139 fprintf(stderr, "Cannot get resampling context\n");
2140 exit_program(1);
2141 }
2142 #endif
2143 codec->bits_per_raw_sample= 0;
2144 }
2145
2146 ost->resample_height = icodec->height;
2147 ost->resample_width = icodec->width;
2148 ost->resample_pix_fmt= icodec->pix_fmt;
2149 ost->encoding_needed = 1;
2150 ist->decoding_needed = 1;
2151
2152 if (!ost->frame_rate.num)
2153 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2154 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2155 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2156 ost->frame_rate = ost->enc->supported_framerates[idx];
2157 }
2158 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2159
2160 #if CONFIG_AVFILTER
2161 if (configure_video_filters(ist, ost)) {
2162 fprintf(stderr, "Error opening filters!\n");
2163 exit(1);
2164 }
2165 #endif
2166 break;
2167 case AVMEDIA_TYPE_SUBTITLE:
2168 ost->encoding_needed = 1;
2169 ist->decoding_needed = 1;
2170 break;
2171 default:
2172 abort();
2173 break;
2174 }
2175 /* two pass mode */
2176 if (ost->encoding_needed &&
2177 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2178 char logfilename[1024];
2179 FILE *f;
2180
2181 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2182 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2183 i);
2184 if (codec->flags & CODEC_FLAG_PASS1) {
2185 f = fopen(logfilename, "wb");
2186 if (!f) {
2187 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2188 exit_program(1);
2189 }
2190 ost->logfile = f;
2191 } else {
2192 char *logbuffer;
2193 size_t logbuffer_size;
2194 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2195 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2196 exit_program(1);
2197 }
2198 codec->stats_in = logbuffer;
2199 }
2200 }
2201 }
2202 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2203 int size= codec->width * codec->height;
2204 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2205 }
2206 }
2207
2208 if (!bit_buffer)
2209 bit_buffer = av_malloc(bit_buffer_size);
2210 if (!bit_buffer) {
2211 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2212 bit_buffer_size);
2213 ret = AVERROR(ENOMEM);
2214 goto fail;
2215 }
2216
2217 /* open each encoder */
2218 for(i=0;i<nb_ostreams;i++) {
2219 ost = ost_table[i];
2220 if (ost->encoding_needed) {
2221 AVCodec *codec = ost->enc;
2222 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2223 if (!codec) {
2224 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2225 ost->st->codec->codec_id, ost->file_index, ost->index);
2226 ret = AVERROR(EINVAL);
2227 goto dump_format;
2228 }
2229 if (dec->subtitle_header) {
2230 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2231 if (!ost->st->codec->subtitle_header) {
2232 ret = AVERROR(ENOMEM);
2233 goto dump_format;
2234 }
2235 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2236 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2237 }
2238 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2239 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2240 ost->file_index, ost->index);
2241 ret = AVERROR(EINVAL);
2242 goto dump_format;
2243 }
2244 assert_codec_experimental(ost->st->codec, 1);
2245 assert_avoptions(ost->opts);
2246 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2247 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2248 "It takes bits/s as argument, not kbits/s\n");
2249 extra_size += ost->st->codec->extradata_size;
2250 }
2251 }
2252
2253 /* open each decoder */
2254 for (i = 0; i < nb_input_streams; i++) {
2255 ist = &input_streams[i];
2256 if (ist->decoding_needed) {
2257 AVCodec *codec = ist->dec;
2258 if (!codec)
2259 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2260 if (!codec) {
2261 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2262 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2263 ret = AVERROR(EINVAL);
2264 goto dump_format;
2265 }
2266
2267 /* update requested sample format for the decoder based on the
2268 corresponding encoder sample format */
2269 for (j = 0; j < nb_ostreams; j++) {
2270 ost = ost_table[j];
2271 if (ost->source_index == i) {
2272 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2273 break;
2274 }
2275 }
2276
2277 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2278 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2279 ist->file_index, ist->st->index);
2280 ret = AVERROR(EINVAL);
2281 goto dump_format;
2282 }
2283 assert_codec_experimental(ist->st->codec, 0);
2284 assert_avoptions(ost->opts);
2285 //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2286 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2287 }
2288 }
2289
2290 /* init pts */
2291 for (i = 0; i < nb_input_streams; i++) {
2292 AVStream *st;
2293 ist = &input_streams[i];
2294 st= ist->st;
2295 ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2296 ist->next_pts = AV_NOPTS_VALUE;
2297 init_pts_correction(&ist->pts_ctx);
2298 ist->is_start = 1;
2299 }
2300
2301 /* open files and write file headers */
2302 for(i=0;i<nb_output_files;i++) {
2303 os = output_files[i];
2304 if (avformat_write_header(os, &output_opts[i]) < 0) {
2305 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2306 ret = AVERROR(EINVAL);
2307 goto dump_format;
2308 }
2309 assert_avoptions(output_opts[i]);
2310 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2311 want_sdp = 0;
2312 }
2313 }
2314
2315 dump_format:
2316 /* dump the file output parameters - cannot be done before in case
2317 of stream copy */
2318 for(i=0;i<nb_output_files;i++) {
2319 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2320 }
2321
2322 /* dump the stream mapping */
2323 if (verbose >= 0) {
2324 fprintf(stderr, "Stream mapping:\n");
2325 for(i=0;i<nb_ostreams;i++) {
2326 ost = ost_table[i];
2327 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2328 input_streams[ost->source_index].file_index,
2329 input_streams[ost->source_index].st->index,
2330 ost->file_index,
2331 ost->index);
2332 if (ost->sync_ist != &input_streams[ost->source_index])
2333 fprintf(stderr, " [sync #%d.%d]",
2334 ost->sync_ist->file_index,
2335 ost->sync_ist->st->index);
2336 fprintf(stderr, "\n");
2337 }
2338 }
2339
2340 if (ret) {
2341 fprintf(stderr, "%s\n", error);
2342 goto fail;
2343 }
2344
2345 if (want_sdp) {
2346 print_sdp(output_files, nb_output_files);
2347 }
2348
2349 if (verbose >= 0)
2350 fprintf(stderr, "Press ctrl-c to stop encoding\n");
2351 term_init();
2352
2353 timer_start = av_gettime();
2354
2355 for(; received_sigterm == 0;) {
2356 int file_index, ist_index;
2357 AVPacket pkt;
2358 double ipts_min;
2359 double opts_min;
2360
2361 redo:
2362 ipts_min= 1e100;
2363 opts_min= 1e100;
2364
2365 /* select the stream that we must read now by looking at the
2366 smallest output pts */
2367 file_index = -1;
2368 for(i=0;i<nb_ostreams;i++) {
2369 double ipts, opts;
2370 ost = ost_table[i];
2371 os = output_files[ost->file_index];
2372 ist = &input_streams[ost->source_index];
2373 if(ist->is_past_recording_time || no_packet[ist->file_index])
2374 continue;
2375 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2376 ipts = (double)ist->pts;
2377 if (!input_files[ist->file_index].eof_reached){
2378 if(ipts < ipts_min) {
2379 ipts_min = ipts;
2380 if(input_sync ) file_index = ist->file_index;
2381 }
2382 if(opts < opts_min) {
2383 opts_min = opts;
2384 if(!input_sync) file_index = ist->file_index;
2385 }
2386 }
2387 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2388 file_index= -1;
2389 break;
2390 }
2391 }
2392 /* if none, if is finished */
2393 if (file_index < 0) {
2394 if(no_packet_count){
2395 no_packet_count=0;
2396 memset(no_packet, 0, sizeof(no_packet));
2397 usleep(10000);
2398 continue;
2399 }
2400 break;
2401 }
2402
2403 /* finish if limit size exhausted */
2404 if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2405 break;
2406
2407 /* read a frame from it and output it in the fifo */
2408 is = input_files[file_index].ctx;
2409 ret= av_read_frame(is, &pkt);
2410 if(ret == AVERROR(EAGAIN)){
2411 no_packet[file_index]=1;
2412 no_packet_count++;
2413 continue;
2414 }
2415 if (ret < 0) {
2416 input_files[file_index].eof_reached = 1;
2417 if (opt_shortest)
2418 break;
2419 else
2420 continue;
2421 }
2422
2423 no_packet_count=0;
2424 memset(no_packet, 0, sizeof(no_packet));
2425
2426 if (do_pkt_dump) {
2427 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2428 is->streams[pkt.stream_index]);
2429 }
2430 /* the following test is needed in case new streams appear
2431 dynamically in stream : we ignore them */
2432 if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2433 goto discard_packet;
2434 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2435 ist = &input_streams[ist_index];
2436 if (ist->discard)
2437 goto discard_packet;
2438
2439 if (pkt.dts != AV_NOPTS_VALUE)
2440 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2441 if (pkt.pts != AV_NOPTS_VALUE)
2442 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2443
2444 if (ist->ts_scale) {
2445 if(pkt.pts != AV_NOPTS_VALUE)
2446 pkt.pts *= ist->ts_scale;
2447 if(pkt.dts != AV_NOPTS_VALUE)
2448 pkt.dts *= ist->ts_scale;
2449 }
2450
2451 // 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);
2452 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2453 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2454 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2455 int64_t delta= pkt_dts - ist->next_pts;
2456 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2457 input_files[ist->file_index].ts_offset -= delta;
2458 if (verbose > 2)
2459 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2460 delta, input_files[ist->file_index].ts_offset);
2461 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2462 if(pkt.pts != AV_NOPTS_VALUE)
2463 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2464 }
2465 }
2466
2467 /* finish if recording time exhausted */
2468 if (recording_time != INT64_MAX &&
2469 av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2470 ist->is_past_recording_time = 1;
2471 goto discard_packet;
2472 }
2473
2474 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2475 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2476
2477 if (verbose >= 0)
2478 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2479 ist->file_index, ist->st->index);
2480 if (exit_on_error)
2481 exit_program(1);
2482 av_free_packet(&pkt);
2483 goto redo;
2484 }
2485
2486 discard_packet:
2487 av_free_packet(&pkt);
2488
2489 /* dump report by using the output first video and audio streams */
2490 print_report(output_files, ost_table, nb_ostreams, 0);
2491 }
2492
2493 /* at the end of stream, we must flush the decoder buffers */
2494 for (i = 0; i < nb_input_streams; i++) {
2495 ist = &input_streams[i];
2496 if (ist->decoding_needed) {
2497 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2498 }
2499 }
2500
2501 term_exit();
2502
2503 /* write the trailer if needed and close file */
2504 for(i=0;i<nb_output_files;i++) {
2505 os = output_files[i];
2506 av_write_trailer(os);
2507 }
2508
2509 /* dump report by using the first video and audio streams */
2510 print_report(output_files, ost_table, nb_ostreams, 1);
2511
2512 /* close each encoder */
2513 for(i=0;i<nb_ostreams;i++) {
2514 ost = ost_table[i];
2515 if (ost->encoding_needed) {
2516 av_freep(&ost->st->codec->stats_in);
2517 avcodec_close(ost->st->codec);
2518 }
2519 #if CONFIG_AVFILTER
2520 avfilter_graph_free(&ost->graph);
2521 #endif
2522 }
2523
2524 /* close each decoder */
2525 for (i = 0; i < nb_input_streams; i++) {
2526 ist = &input_streams[i];
2527 if (ist->decoding_needed) {
2528 avcodec_close(ist->st->codec);
2529 }
2530 }
2531
2532 /* finished ! */
2533 ret = 0;
2534
2535 fail:
2536 av_freep(&bit_buffer);
2537
2538 if (ost_table) {
2539 for(i=0;i<nb_ostreams;i++) {
2540 ost = ost_table[i];
2541 if (ost) {
2542 if (ost->st->stream_copy)
2543 av_freep(&ost->st->codec->extradata);
2544 if (ost->logfile) {
2545 fclose(ost->logfile);
2546 ost->logfile = NULL;
2547 }
2548 av_fifo_free(ost->fifo); /* works even if fifo is not
2549 initialized but set to zero */
2550 av_freep(&ost->st->codec->subtitle_header);
2551 av_free(ost->pict_tmp.data[0]);
2552 av_free(ost->forced_kf_pts);
2553 if (ost->video_resample)
2554 sws_freeContext(ost->img_resample_ctx);
2555 if (ost->resample)
2556 audio_resample_close(ost->resample);
2557 if (ost->reformat_ctx)
2558 av_audio_convert_free(ost->reformat_ctx);
2559 av_dict_free(&ost->opts);
2560 av_free(ost);
2561 }
2562 }
2563 av_free(ost_table);
2564 }
2565 return ret;
2566 }
2567
2568 static int opt_format(const char *opt, const char *arg)
2569 {
2570 last_asked_format = arg;
2571 return 0;
2572 }
2573
2574 static int opt_video_rc_override_string(const char *opt, const char *arg)
2575 {
2576 video_rc_override_string = arg;
2577 return 0;
2578 }
2579
2580 static int opt_me_threshold(const char *opt, const char *arg)
2581 {
2582 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2583 return 0;
2584 }
2585
2586 static int opt_verbose(const char *opt, const char *arg)
2587 {
2588 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2589 return 0;
2590 }
2591
2592 static int opt_frame_rate(const char *opt, const char *arg)
2593 {
2594 if (av_parse_video_rate(&frame_rate, arg) < 0) {
2595 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2596 exit_program(1);
2597 }
2598 return 0;
2599 }
2600
2601 static int opt_frame_crop(const char *opt, const char *arg)
2602 {
2603 fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2604 return AVERROR(EINVAL);
2605 }
2606
2607 static int opt_frame_size(const char *opt, const char *arg)
2608 {
2609 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2610 fprintf(stderr, "Incorrect frame size\n");
2611 return AVERROR(EINVAL);
2612 }
2613 return 0;
2614 }
2615
2616 static int opt_pad(const char *opt, const char *arg) {
2617 fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2618 return -1;
2619 }
2620
2621 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2622 {
2623 if (strcmp(arg, "list")) {
2624 frame_pix_fmt = av_get_pix_fmt(arg);
2625 if (frame_pix_fmt == PIX_FMT_NONE) {
2626 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2627 return AVERROR(EINVAL);
2628 }
2629 } else {
2630 show_pix_fmts();
2631 exit_program(0);
2632 }
2633 return 0;
2634 }
2635
2636 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2637 {
2638 int x = 0, y = 0;
2639 double ar = 0;
2640 const char *p;
2641 char *end;
2642
2643 p = strchr(arg, ':');
2644 if (p) {
2645 x = strtol(arg, &end, 10);
2646 if (end == p)
2647 y = strtol(end+1, &end, 10);
2648 if (x > 0 && y > 0)
2649 ar = (double)x / (double)y;
2650 } else
2651 ar = strtod(arg, NULL);
2652
2653 if (!ar) {
2654 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2655 return AVERROR(EINVAL);
2656 }
2657 frame_aspect_ratio = ar;
2658 return 0;
2659 }
2660
2661 static int opt_metadata(const char *opt, const char *arg)
2662 {
2663 char *mid= strchr(arg, '=');
2664
2665 if(!mid){
2666 fprintf(stderr, "Missing =\n");
2667 exit_program(1);
2668 }
2669 *mid++= 0;
2670
2671 av_dict_set(&metadata, arg, mid, 0);
2672
2673 return 0;
2674 }
2675
2676 static int opt_qscale(const char *opt, const char *arg)
2677 {
2678 video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2679 if (video_qscale == 0) {
2680 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2681 return AVERROR(EINVAL);
2682 }
2683 return 0;
2684 }
2685
2686 static int opt_top_field_first(const char *opt, const char *arg)
2687 {
2688 top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2689 return 0;
2690 }
2691
2692 static int opt_thread_count(const char *opt, const char *arg)
2693 {
2694 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2695 #if !HAVE_THREADS
2696 if (verbose >= 0)
2697 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2698 #endif
2699 return 0;
2700 }
2701
2702 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2703 {
2704 if (strcmp(arg, "list")) {
2705 audio_sample_fmt = av_get_sample_fmt(arg);
2706 if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2707 av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2708 return AVERROR(EINVAL);
2709 }
2710 } else {
2711 int i;
2712 char fmt_str[128];
2713 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2714 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2715 exit_program(0);
2716 }
2717 return 0;
2718 }
2719
2720 static int opt_audio_rate(const char *opt, const char *arg)
2721 {
2722 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2723 return 0;
2724 }
2725
2726 static int opt_audio_channels(const char *opt, const char *arg)
2727 {
2728 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2729 return 0;
2730 }
2731
2732 static int opt_codec(int *pstream_copy, char **pcodec_name,
2733 int codec_type, const char *arg)
2734 {
2735 av_freep(pcodec_name);
2736 if (!strcmp(arg, "copy")) {
2737 *pstream_copy = 1;
2738 } else {
2739 *pcodec_name = av_strdup(arg);
2740 }
2741 return 0;
2742 }
2743
2744 static int opt_audio_codec(const char *opt, const char *arg)
2745 {
2746 return opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2747 }
2748
2749 static int opt_video_codec(const char *opt, const char *arg)
2750 {
2751 return opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2752 }
2753
2754 static int opt_subtitle_codec(const char *opt, const char *arg)
2755 {
2756 return opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2757 }
2758
2759 static int opt_data_codec(const char *opt, const char *arg)
2760 {
2761 return opt_codec(&data_stream_copy, &data_codec_name, AVMEDIA_TYPE_DATA, arg);
2762 }
2763
2764 static int opt_codec_tag(const char *opt, const char *arg)
2765 {
2766 char *tail;
2767 uint32_t *codec_tag;
2768
2769 codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2770 !strcmp(opt, "vtag") ? &video_codec_tag :
2771 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2772 if (!codec_tag)
2773 return -1;
2774
2775 *codec_tag = strtol(arg, &tail, 0);
2776 if (!tail || *tail)
2777 *codec_tag = AV_RL32(arg);
2778
2779 return 0;
2780 }
2781
2782 static int opt_map(const char *opt, const char *arg)
2783 {
2784 StreamMap *m = NULL;
2785 int i, negative = 0, file_idx;
2786 int sync_file_idx = -1, sync_stream_idx;
2787 char *p, *sync;
2788 char *map;
2789
2790 if (*arg == '-') {
2791 negative = 1;
2792 arg++;
2793 }
2794 map = av_strdup(arg);
2795
2796 /* parse sync stream first, just pick first matching stream */
2797 if (sync = strchr(map, ',')) {
2798 *sync = 0;
2799 sync_file_idx = strtol(sync + 1, &sync, 0);
2800 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2801 av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2802 exit_program(1);
2803 }
2804 if (*sync)
2805 sync++;
2806 for (i = 0; i < input_files[sync_file_idx].ctx->nb_streams; i++)
2807 if (check_stream_specifier(input_files[sync_file_idx].ctx,
2808 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2809 sync_stream_idx = i;
2810 break;
2811 }
2812 if (i == input_files[sync_file_idx].ctx->nb_streams) {
2813 av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2814 "match any streams.\n", arg);
2815 exit_program(1);
2816 }
2817 }
2818
2819
2820 file_idx = strtol(map, &p, 0);
2821 if (file_idx >= nb_input_files || file_idx < 0) {
2822 av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2823 exit_program(1);
2824 }
2825 if (negative)
2826 /* disable some already defined maps */
2827 for (i = 0; i < nb_stream_maps; i++) {
2828 m = &stream_maps[i];
2829 if (check_stream_specifier(input_files[m->file_index].ctx,
2830 input_files[m->file_index].ctx->streams[m->stream_index],
2831 *p == ':' ? p + 1 : p) > 0)
2832 m->disabled = 1;
2833 }
2834 else
2835 for (i = 0; i < input_files[file_idx].ctx->nb_streams; i++) {
2836 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2837 *p == ':' ? p + 1 : p) <= 0)
2838 continue;
2839 stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2840 m = &stream_maps[nb_stream_maps - 1];
2841
2842 m->file_index = file_idx;
2843 m->stream_index = i;
2844
2845 if (sync_file_idx >= 0) {
2846 m->sync_file_index = sync_file_idx;
2847 m->sync_stream_index = sync_stream_idx;
2848 } else {
2849 m->sync_file_index = file_idx;
2850 m->sync_stream_index = i;
2851 }
2852 }
2853
2854 if (!m) {
2855 av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2856 exit_program(1);
2857 }
2858
2859 av_freep(&map);
2860 return 0;
2861 }
2862
2863 static void parse_meta_type(char *arg, char *type, int *index)
2864 {
2865 if (*arg == ':') {
2866 *type = *(++arg);
2867 switch (*arg) {
2868 case 'g':
2869 break;
2870 case 's':
2871 case 'c':
2872 case 'p':
2873 if (*(++arg) == ':')
2874 *index = strtol(++arg, NULL, 0);
2875 break;
2876 default:
2877 fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2878 exit_program(1);
2879 }
2880 } else
2881 *type = 'g';
2882 }
2883
2884 static int opt_map_metadata(const char *opt, const char *arg)
2885 {
2886 MetadataMap *m, *m1;
2887 char *p;
2888
2889 meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2890 &nb_meta_data_maps, nb_meta_data_maps + 1);
2891
2892 m = &meta_data_maps[nb_meta_data_maps - 1][1];
2893 m->file = strtol(arg, &p, 0);
2894 parse_meta_type(p, &m->type, &m->index);
2895
2896 m1 = &meta_data_maps[nb_meta_data_maps - 1][0];
2897 if (p = strchr(opt, ':'))
2898 parse_meta_type(p, &m1->type, &m1->index);
2899 else
2900 m1->type = 'g';
2901
2902 if (m->type == 'g' || m1->type == 'g')
2903 metadata_global_autocopy = 0;
2904 if (m->type == 's' || m1->type == 's')
2905 metadata_streams_autocopy = 0;
2906 if (m->type == 'c' || m1->type == 'c')
2907 metadata_chapters_autocopy = 0;
2908
2909 return 0;
2910 }
2911
2912 static int opt_input_ts_scale(const char *opt, const char *arg)
2913 {
2914 unsigned int stream;
2915 double scale;
2916 char *p;
2917
2918 stream = strtol(arg, &p, 0);
2919 if (*p)
2920 p++;
2921 scale= strtod(p, &p);
2922
2923 ts_scale = grow_array(ts_scale, sizeof(*ts_scale), &nb_ts_scale, stream + 1);
2924 ts_scale[stream] = scale;
2925 return 0;
2926 }
2927
2928 static int opt_recording_time(const char *opt, const char *arg)
2929 {
2930 recording_time = parse_time_or_die(opt, arg, 1);
2931 return 0;
2932 }
2933
2934 static int opt_start_time(const char *opt, const char *arg)
2935 {
2936 start_time = parse_time_or_die(opt, arg, 1);
2937 return 0;
2938 }
2939
2940 static int opt_input_ts_offset(const char *opt, const char *arg)
2941 {
2942 input_ts_offset = parse_time_or_die(opt, arg, 1);
2943 return 0;
2944 }
2945
2946 static enum CodecID find_codec_or_die(const char *name, int type, int encoder)
2947 {
2948 const char *codec_string = encoder ? "encoder" : "decoder";
2949 AVCodec *codec;
2950
2951 if(!name)
2952 return CODEC_ID_NONE;
2953 codec = encoder ?
2954 avcodec_find_encoder_by_name(name) :
2955 avcodec_find_decoder_by_name(name);
2956 if(!codec) {
2957 fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
2958 exit_program(1);
2959 }
2960 if(codec->type != type) {
2961 fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
2962 exit_program(1);
2963 }
2964 return codec->id;
2965 }
2966
2967 static int opt_input_file(const char *opt, const char *filename)
2968 {
2969 AVFormatContext *ic;
2970 AVInputFormat *file_iformat = NULL;
2971 int err, i, ret, rfps, rfps_base;
2972 int64_t timestamp;
2973 uint8_t buf[128];
2974 AVDictionary **opts;
2975 int orig_nb_streams; // number of streams before avformat_find_stream_info
2976
2977 if (last_asked_format) {
2978 if (!(file_iformat = av_find_input_format(last_asked_format))) {
2979 fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
2980 exit_program(1);
2981 }
2982 last_asked_format = NULL;
2983 }
2984
2985 if (!strcmp(filename, "-"))
2986 filename = "pipe:";
2987
2988 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2989 !strcmp(filename, "/dev/stdin");
2990
2991 /* get default parameters from command line */
2992 ic = avformat_alloc_context();
2993 if (!ic) {
2994 print_error(filename, AVERROR(ENOMEM));
2995 exit_program(1);
2996 }
2997 if (audio_sample_rate) {
2998 snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
2999 av_dict_set(&format_opts, "sample_rate", buf, 0);
3000 }
3001 if (audio_channels) {
3002 snprintf(buf, sizeof(buf), "%d", audio_channels);
3003 av_dict_set(&format_opts, "channels", buf, 0);
3004 }
3005 if (frame_rate.num) {
3006 snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
3007 av_dict_set(&format_opts, "framerate", buf, 0);
3008 }
3009 if (frame_width && frame_height) {
3010 snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
3011 av_dict_set(&format_opts, "video_size", buf, 0);
3012 }
3013 if (frame_pix_fmt != PIX_FMT_NONE)
3014 av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
3015
3016 ic->video_codec_id =
3017 find_codec_or_die(video_codec_name , AVMEDIA_TYPE_VIDEO , 0);
3018 ic->audio_codec_id =
3019 find_codec_or_die(audio_codec_name , AVMEDIA_TYPE_AUDIO , 0);
3020 ic->subtitle_codec_id=
3021 find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0);
3022 ic->flags |= AVFMT_FLAG_NONBLOCK;
3023
3024 /* open the input file with generic libav function */
3025 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3026 if (err < 0) {
3027 print_error(filename, err);
3028 exit_program(1);
3029 }
3030 assert_avoptions(format_opts);
3031
3032 if(opt_programid) {
3033 int i, j;
3034 int found=0;
3035 for(i=0; i<ic->nb_streams; i++){
3036 ic->streams[i]->discard= AVDISCARD_ALL;
3037 }
3038 for(i=0; i<ic->nb_programs; i++){
3039 AVProgram *p= ic->programs[i];
3040 if(p->id != opt_programid){
3041 p->discard = AVDISCARD_ALL;
3042 }else{
3043 found=1;
3044 for(j=0; j<p->nb_stream_indexes; j++){
3045 ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3046 }
3047 }
3048 }
3049 if(!found){
3050 fprintf(stderr, "Specified program id not found\n");
3051 exit_program(1);
3052 }
3053 opt_programid=0;
3054 }
3055
3056 /* Set AVCodecContext options for avformat_find_stream_info */
3057 opts = setup_find_stream_info_opts(ic, codec_opts);
3058 orig_nb_streams = ic->nb_streams;
3059
3060 /* If not enough info to get the stream parameters, we decode the
3061 first frames to get it. (used in mpeg case for example) */
3062 ret = avformat_find_stream_info(ic, opts);
3063 if (ret < 0 && verbose >= 0) {
3064 fprintf(stderr, "%s: could not find codec parameters\n", filename);
3065 av_close_input_file(ic);
3066 exit_program(1);
3067 }
3068
3069 timestamp = start_time;
3070 /* add the stream start time */
3071 if (ic->start_time != AV_NOPTS_VALUE)
3072 timestamp += ic->start_time;
3073
3074 /* if seeking requested, we execute it */
3075 if (start_time != 0) {
3076 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3077 if (ret < 0) {
3078 fprintf(stderr, "%s: could not seek to position %0.3f\n",
3079 filename, (double)timestamp / AV_TIME_BASE);
3080 }
3081 /* reset seek info */
3082 start_time = 0;
3083 }
3084
3085 /* update the current parameters so that they match the one of the input stream */
3086 for(i=0;i<ic->nb_streams;i++) {
3087 AVStream *st = ic->streams[i];
3088 AVCodecContext *dec = st->codec;
3089 InputStream *ist;
3090
3091 dec->thread_count = thread_count;
3092
3093 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3094 ist = &input_streams[nb_input_streams - 1];
3095 ist->st = st;
3096 ist->file_index = nb_input_files;
3097 ist->discard = 1;
3098 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
3099
3100 if (i < nb_ts_scale)
3101 ist->ts_scale = ts_scale[i];
3102
3103 switch (dec->codec_type) {
3104 case AVMEDIA_TYPE_AUDIO:
3105 ist->dec = avcodec_find_decoder_by_name(audio_codec_name);
3106 if(audio_disable)
3107 st->discard= AVDISCARD_ALL;
3108 break;
3109 case AVMEDIA_TYPE_VIDEO:
3110 ist->dec = avcodec_find_decoder_by_name(video_codec_name);
3111 rfps = ic->streams[i]->r_frame_rate.num;
3112 rfps_base = ic->streams[i]->r_frame_rate.den;
3113 if (dec->lowres) {
3114 dec->flags |= CODEC_FLAG_EMU_EDGE;
3115 dec->height >>= dec->lowres;
3116 dec->width >>= dec->lowres;
3117 }
3118 if(me_threshold)
3119 dec->debug |= FF_DEBUG_MV;
3120
3121 if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3122
3123 if (verbose >= 0)
3124 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3125 i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3126
3127 (float)rfps / rfps_base, rfps, rfps_base);
3128 }
3129
3130 if(video_disable)
3131 st->discard= AVDISCARD_ALL;
3132 else if(video_discard)
3133 st->discard= video_discard;
3134 break;
3135 case AVMEDIA_TYPE_DATA:
3136 break;
3137 case AVMEDIA_TYPE_SUBTITLE:
3138 ist->dec = avcodec_find_decoder_by_name(subtitle_codec_name);
3139 if(subtitle_disable)
3140 st->discard = AVDISCARD_ALL;
3141 break;
3142 case AVMEDIA_TYPE_ATTACHMENT:
3143 case AVMEDIA_TYPE_UNKNOWN:
3144 break;
3145 default:
3146 abort();
3147 }
3148 }
3149
3150 /* dump the file content */
3151 if (verbose >= 0)
3152 av_dump_format(ic, nb_input_files, filename, 0);
3153
3154 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3155 input_files[nb_input_files - 1].ctx = ic;
3156 input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
3157 input_files[nb_input_files - 1].ts_offset = input_ts_offset - (copy_ts ? 0 : timestamp);
3158
3159 frame_rate = (AVRational){0, 0};
3160 frame_pix_fmt = PIX_FMT_NONE;
3161 frame_height = 0;
3162 frame_width = 0;
3163 audio_sample_rate = 0;
3164 audio_channels = 0;
3165 audio_sample_fmt = AV_SAMPLE_FMT_NONE;
3166 av_freep(&ts_scale);
3167 nb_ts_scale = 0;
3168
3169 for (i = 0; i < orig_nb_streams; i++)
3170 av_dict_free(&opts[i]);
3171 av_freep(&opts);
3172 av_freep(&video_codec_name);
3173 av_freep(&audio_codec_name);
3174 av_freep(&subtitle_codec_name);
3175 uninit_opts();
3176 init_opts();
3177 return 0;
3178 }
3179
3180 static OutputStream *new_video_stream(AVFormatContext *oc, int file_idx)
3181 {
3182 AVStream *st;
3183 OutputStream *ost;
3184 AVCodecContext *video_enc;
3185 enum CodecID codec_id = CODEC_ID_NONE;
3186 AVCodec *codec= NULL;
3187
3188 if(!video_stream_copy){
3189 if (video_codec_name) {
3190 codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1);
3191 codec = avcodec_find_encoder_by_name(video_codec_name);
3192 } else {
3193 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3194 codec = avcodec_find_encoder(codec_id);
3195 }
3196 }
3197
3198 ost = new_output_stream(oc, file_idx, codec);
3199 st = ost->st;
3200 if (!video_stream_copy) {
3201 ost->frame_aspect_ratio = frame_aspect_ratio;
3202 frame_aspect_ratio = 0;
3203 #if CONFIG_AVFILTER
3204 ost->avfilter= vfilters;
3205 vfilters = NULL;
3206 #endif
3207 }
3208
3209 ost->bitstream_filters = video_bitstream_filters;
3210 video_bitstream_filters= NULL;
3211
3212 st->codec->thread_count= thread_count;
3213
3214 video_enc = st->codec;
3215
3216 if(video_codec_tag)
3217 video_enc->codec_tag= video_codec_tag;
3218
3219 if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3220 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3221 }
3222
3223 video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3224 if (video_stream_copy) {
3225 st->stream_copy = 1;
3226 video_enc->sample_aspect_ratio =
3227 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3228 } else {
3229 const char *p;
3230 int i;
3231
3232 if (frame_rate.num)
3233 ost->frame_rate = frame_rate;
3234 video_enc->codec_id = codec_id;
3235
3236 video_enc->width = frame_width;
3237 video_enc->height = frame_height;
3238 video_enc->pix_fmt = frame_pix_fmt;
3239 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3240
3241 if (intra_only)
3242 video_enc->gop_size = 0;
3243 if (video_qscale || same_quality) {
3244 video_enc->flags |= CODEC_FLAG_QSCALE;
3245 video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3246 }
3247
3248 if(intra_matrix)
3249 video_enc->intra_matrix = intra_matrix;
3250 if(inter_matrix)
3251 video_enc->inter_matrix = inter_matrix;
3252
3253 p= video_rc_override_string;
3254 for(i=0; p; i++){
3255 int start, end, q;
3256 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3257 if(e!=3){
3258 fprintf(stderr, "error parsing rc_override\n");
3259 exit_program(1);
3260 }
3261 video_enc->rc_override=
3262 av_realloc(video_enc->rc_override,
3263 sizeof(RcOverride)*(i+1));
3264 video_enc->rc_override[i].start_frame= start;
3265 video_enc->rc_override[i].end_frame = end;
3266 if(q>0){
3267 video_enc->rc_override[i].qscale= q;
3268 video_enc->rc_override[i].quality_factor= 1.0;
3269 }
3270 else{
3271 video_enc->rc_override[i].qscale= 0;
3272 video_enc->rc_override[i].quality_factor= -q/100.0;
3273 }
3274 p= strchr(p, '/');
3275 if(p) p++;
3276 }
3277 video_enc->rc_override_count=i;
3278 if (!video_enc->rc_initial_buffer_occupancy)
3279 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3280 video_enc->me_threshold= me_threshold;
3281 video_enc->intra_dc_precision= intra_dc_precision - 8;
3282
3283 if (do_psnr)
3284 video_enc->flags|= CODEC_FLAG_PSNR;
3285
3286 /* two pass mode */
3287 if (do_pass) {
3288 if (do_pass == 1) {
3289 video_enc->flags |= CODEC_FLAG_PASS1;
3290 } else {
3291 video_enc->flags |= CODEC_FLAG_PASS2;
3292 }
3293 }
3294
3295 if (forced_key_frames)
3296 parse_forced_key_frames(forced_key_frames, ost, video_enc);
3297 }
3298 if (video_language) {
3299 av_dict_set(&st->metadata, "language", video_language, 0);
3300 av_freep(&video_language);
3301 }
3302
3303 /* reset some key parameters */
3304 video_disable = 0;
3305 av_freep(&video_codec_name);
3306 av_freep(&forced_key_frames);
3307 video_stream_copy = 0;
3308 frame_pix_fmt = PIX_FMT_NONE;
3309 return ost;
3310 }
3311
3312 static OutputStream *new_audio_stream(AVFormatContext *oc, int file_idx)
3313 {
3314 AVStream *st;
3315 OutputStream *ost;
3316 AVCodec *codec= NULL;
3317 AVCodecContext *audio_enc;
3318 enum CodecID codec_id = CODEC_ID_NONE;
3319
3320 if(!audio_stream_copy){
3321 if (audio_codec_name) {
3322 codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1);
3323 codec = avcodec_find_encoder_by_name(audio_codec_name);
3324 } else {
3325 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3326 codec = avcodec_find_encoder(codec_id);
3327 }
3328 }
3329 ost = new_output_stream(oc, file_idx, codec);
3330 st = ost->st;
3331
3332 ost->bitstream_filters = audio_bitstream_filters;
3333 audio_bitstream_filters= NULL;
3334
3335 st->codec->thread_count= thread_count;
3336
3337 audio_enc = st->codec;
3338 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3339
3340 if(audio_codec_tag)
3341 audio_enc->codec_tag= audio_codec_tag;
3342
3343 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3344 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3345 }
3346 if (audio_stream_copy) {
3347 st->stream_copy = 1;
3348 } else {
3349 audio_enc->codec_id = codec_id;
3350
3351 if (audio_qscale > QSCALE_NONE) {
3352 audio_enc->flags |= CODEC_FLAG_QSCALE;
3353 audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3354 }
3355 if (audio_channels)
3356 audio_enc->channels = audio_channels;
3357 if (audio_sample_fmt != AV_SAMPLE_FMT_NONE)
3358 audio_enc->sample_fmt = audio_sample_fmt;
3359 if (audio_sample_rate)
3360 audio_enc->sample_rate = audio_sample_rate;
3361 }
3362 if (audio_language) {
3363 av_dict_set(&st->metadata, "language", audio_language, 0);
3364 av_freep(&audio_language);
3365 }
3366
3367 /* reset some key parameters */
3368 audio_disable = 0;
3369 av_freep(&audio_codec_name);
3370 audio_stream_copy = 0;
3371
3372 return ost;
3373 }
3374
3375 static OutputStream *new_data_stream(AVFormatContext *oc, int file_idx)
3376 {
3377 AVStream *st;
3378 OutputStream *ost;
3379 AVCodecContext *data_enc;
3380
3381 ost = new_output_stream(oc, file_idx, NULL);
3382 st = ost->st;
3383 data_enc = st->codec;
3384 if (!data_stream_copy) {
3385 fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3386 exit_program(1);
3387 }
3388
3389 data_enc->codec_type = AVMEDIA_TYPE_DATA;
3390
3391 if (data_codec_tag)
3392 data_enc->codec_tag= data_codec_tag;
3393
3394 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3395 data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3396 }
3397 if (data_stream_copy) {
3398 st->stream_copy = 1;
3399 }
3400
3401 data_disable = 0;
3402 av_freep(&data_codec_name);
3403 data_stream_copy = 0;
3404 return ost;
3405 }
3406
3407 static OutputStream *new_subtitle_stream(AVFormatContext *oc, int file_idx)
3408 {
3409 AVStream *st;
3410 OutputStream *ost;
3411 AVCodec *codec=NULL;
3412 AVCodecContext *subtitle_enc;
3413 enum CodecID codec_id = CODEC_ID_NONE;
3414
3415 if(!subtitle_stream_copy){
3416 if (subtitle_codec_name) {
3417 codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1);
3418 codec = avcodec_find_encoder_by_name(subtitle_codec_name);
3419 } else {
3420 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_SUBTITLE);
3421 codec = avcodec_find_encoder(codec_id);
3422 }
3423 }
3424 ost = new_output_stream(oc, file_idx, codec);
3425 st = ost->st;
3426 subtitle_enc = st->codec;
3427
3428 ost->bitstream_filters = subtitle_bitstream_filters;
3429 subtitle_bitstream_filters= NULL;
3430
3431 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3432
3433 if(subtitle_codec_tag)
3434 subtitle_enc->codec_tag= subtitle_codec_tag;
3435
3436 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3437 subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3438 }
3439 if (subtitle_stream_copy) {
3440 st->stream_copy = 1;
3441 } else {
3442 subtitle_enc->codec_id = codec_id;
3443 }
3444
3445 if (subtitle_language) {
3446 av_dict_set(&st->metadata, "language", subtitle_language, 0);
3447 av_freep(&subtitle_language);
3448 }
3449
3450 subtitle_disable = 0;
3451 av_freep(&subtitle_codec_name);
3452 subtitle_stream_copy = 0;
3453 return ost;
3454 }
3455
3456 /* arg format is "output-stream-index:streamid-value". */
3457 static int opt_streamid(const char *opt, const char *arg)
3458 {
3459 int idx;
3460 char *p;
3461 char idx_str[16];
3462
3463 av_strlcpy(idx_str, arg, sizeof(idx_str));
3464 p = strchr(idx_str, ':');
3465 if (!p) {
3466 fprintf(stderr,
3467 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3468 arg, opt);
3469 exit_program(1);
3470 }
3471 *p++ = '\0';
3472 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
3473 streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
3474 streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3475 return 0;
3476 }
3477
3478 static void opt_output_file(const char *filename)
3479 {
3480 AVFormatContext *oc;
3481 int i, err;
3482 AVOutputFormat *file_oformat;
3483 OutputStream *ost;
3484 InputStream *ist;
3485
3486 if (!strcmp(filename, "-"))
3487 filename = "pipe:";
3488
3489 oc = avformat_alloc_context();
3490 if (!oc) {
3491 print_error(filename, AVERROR(ENOMEM));
3492 exit_program(1);
3493 }
3494
3495 if (last_asked_format) {
3496 file_oformat = av_guess_format(last_asked_format, NULL, NULL);
3497 if (!file_oformat) {
3498 fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", last_asked_format);
3499 exit_program(1);
3500 }
3501 last_asked_format = NULL;
3502 } else {
3503 file_oformat = av_guess_format(NULL, filename, NULL);
3504 if (!file_oformat) {
3505 fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3506 filename);
3507 exit_program(1);
3508 }
3509 }
3510
3511 oc->oformat = file_oformat;
3512 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3513
3514 if (!strcmp(file_oformat->name, "ffm") &&
3515 av_strstart(filename, "http:", NULL)) {
3516 /* special case for files sent to avserver: we get the stream
3517 parameters from avserver */
3518 int err = read_avserver_streams(oc, filename);
3519 if (err < 0) {
3520 print_error(filename, err);
3521 exit_program(1);
3522 }
3523 } else if (!nb_stream_maps) {
3524 /* pick the "best" stream of each type */
3525 #define NEW_STREAM(type, index)\
3526 if (index >= 0) {\
3527 ost = new_ ## type ## _stream(oc, nb_output_files);\
3528 ost->source_index = index;\
3529 ost->sync_ist = &input_streams[index];\
3530 input_streams[index].discard = 0;\
3531 }
3532
3533 /* video: highest resolution */
3534 if (!video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
3535 int area = 0, idx = -1;
3536 for (i = 0; i < nb_input_streams; i++) {
3537 ist = &input_streams[i];
3538 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3539 ist->st->codec->width * ist->st->codec->height > area) {
3540 area = ist->st->codec->width * ist->st->codec->height;
3541 idx = i;
3542 }
3543 }
3544 NEW_STREAM(video, idx);
3545 }
3546
3547 /* audio: most channels */
3548 if (!audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
3549 int channels = 0, idx = -1;
3550 for (i = 0; i < nb_input_streams; i++) {
3551 ist = &input_streams[i];
3552 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
3553 ist->st->codec->channels > channels) {
3554 channels = ist->st->codec->channels;
3555 idx = i;
3556 }
3557 }
3558 NEW_STREAM(audio, idx);
3559 }
3560
3561 /* subtitles: pick first */
3562 if (!subtitle_disable && oc->oformat->subtitle_codec != CODEC_ID_NONE) {
3563 for (i = 0; i < nb_input_streams; i++)
3564 if (input_streams[i].st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3565 NEW_STREAM(subtitle, i);
3566 break;
3567 }
3568 }
3569 /* do something with data? */
3570 } else {
3571 for (i = 0; i < nb_stream_maps; i++) {
3572 StreamMap *map = &stream_maps[i];
3573
3574 if (map->disabled)
3575 continue;
3576
3577 ist = &input_streams[input_files[map->file_index].ist_index + map->stream_index];
3578 switch (ist->st->codec->codec_type) {
3579 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(oc, nb_output_files); break;
3580 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(oc, nb_output_files); break;
3581 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(oc, nb_output_files); break;
3582 case AVMEDIA_TYPE_DATA: ost = new_data_stream(oc, nb_output_files); break;
3583 default:
3584 av_log(NULL, AV_LOG_ERROR, "Cannot map stream #%d.%d - unsupported type.\n",
3585 map->file_index, map->stream_index);
3586 exit_program(1);
3587 }
3588
3589 ost->source_index = input_files[map->file_index].ist_index + map->stream_index;
3590 ost->sync_ist = &input_streams[input_files[map->sync_file_index].ist_index +
3591 map->sync_stream_index];
3592 ist->discard = 0;
3593 }
3594 }
3595
3596 av_dict_copy(&oc->metadata, metadata, 0);
3597 av_dict_free(&metadata);
3598
3599 av_dict_copy(&output_opts[nb_output_files], format_opts, 0);
3600 output_files[nb_output_files++] = oc;
3601
3602 /* check filename in case of an image number is expected */
3603 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3604 if (!av_filename_number_test(oc->filename)) {
3605 print_error(oc->filename, AVERROR(EINVAL));
3606 exit_program(1);
3607 }
3608 }
3609
3610 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
3611 /* test if it already exists to avoid loosing precious files */
3612 if (!file_overwrite &&
3613 (strchr(filename, ':') == NULL ||
3614 filename[1] == ':' ||
3615 av_strstart(filename, "file:", NULL))) {
3616 if (avio_check(filename, 0) == 0) {
3617 if (!using_stdin) {
3618 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3619 fflush(stderr);
3620 if (!read_yesno()) {
3621 fprintf(stderr, "Not overwriting - exiting\n");
3622 exit_program(1);
3623 }
3624 }
3625 else {
3626 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3627 exit_program(1);
3628 }
3629 }
3630 }
3631
3632 /* open the file */
3633 if ((err = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE)) < 0) {
3634 print_error(filename, err);
3635 exit_program(1);
3636 }
3637 }
3638
3639 oc->preload= (int)(mux_preload*AV_TIME_BASE);
3640 oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
3641 oc->flags |= AVFMT_FLAG_NONBLOCK;
3642
3643 /* copy chapters */
3644 if (chapters_input_file >= nb_input_files) {
3645 if (chapters_input_file == INT_MAX) {
3646 /* copy chapters from the first input file that has them*/
3647 chapters_input_file = -1;
3648 for (i = 0; i < nb_input_files; i++)
3649 if (input_files[i].ctx->nb_chapters) {
3650 chapters_input_file = i;
3651 break;
3652 }
3653 } else {
3654 av_log(NULL, AV_LOG_ERROR, "Invalid input file index %d in chapter mapping.\n",
3655 chapters_input_file);
3656 exit_program(1);
3657 }
3658 }
3659 if (chapters_input_file >= 0)
3660 copy_chapters(chapters_input_file, nb_output_files - 1);
3661
3662 /* copy metadata */
3663 for (i = 0; i < nb_meta_data_maps; i++) {
3664 AVFormatContext *files[2];
3665 AVDictionary **meta[2];
3666 int j;