flashsvenc: fix some comment typos
[libav.git] / ffmpeg.c
1 /*
2 * ffmpeg main
3 * Copyright (c) 2000-2003 Fabrice Bellard
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[] = "ffmpeg";
78 const int program_birth_year = 2000;
79
80 /* select an input stream for an output stream */
81 typedef struct StreamMap {
82 int file_index;
83 int stream_index;
84 int sync_file_index;
85 int sync_stream_index;
86 } StreamMap;
87
88 /**
89 * select an input file for an output file
90 */
91 typedef struct MetadataMap {
92 int file; //< file index
93 char type; //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
94 int index; //< stream/chapter/program number
95 } MetadataMap;
96
97 typedef struct ChapterMap {
98 int in_file;
99 int out_file;
100 } ChapterMap;
101
102 static const OptionDef options[];
103
104 #define MAX_FILES 100
105
106 static const char *last_asked_format = NULL;
107 static double *ts_scale;
108 static int nb_ts_scale;
109
110 static AVFormatContext *output_files[MAX_FILES];
111 static AVDictionary *output_opts[MAX_FILES];
112 static int nb_output_files = 0;
113
114 static StreamMap *stream_maps = NULL;
115 static int nb_stream_maps;
116
117 /* first item specifies output metadata, second is input */
118 static MetadataMap (*meta_data_maps)[2] = NULL;
119 static int nb_meta_data_maps;
120 static int metadata_global_autocopy = 1;
121 static int metadata_streams_autocopy = 1;
122 static int metadata_chapters_autocopy = 1;
123
124 static ChapterMap *chapter_maps = NULL;
125 static int nb_chapter_maps;
126
127 /* indexed by output file stream index */
128 static int *streamid_map = NULL;
129 static int nb_streamid_map = 0;
130
131 static int frame_width = 0;
132 static int frame_height = 0;
133 static float frame_aspect_ratio = 0;
134 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
135 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
136 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
137 static AVRational frame_rate;
138 static float video_qscale = 0;
139 static uint16_t *intra_matrix = NULL;
140 static uint16_t *inter_matrix = NULL;
141 static const char *video_rc_override_string=NULL;
142 static int video_disable = 0;
143 static int video_discard = 0;
144 static char *video_codec_name = NULL;
145 static unsigned int video_codec_tag = 0;
146 static char *video_language = NULL;
147 static int same_quality = 0;
148 static int do_deinterlace = 0;
149 static int top_field_first = -1;
150 static int me_threshold = 0;
151 static int intra_dc_precision = 8;
152 static int loop_input = 0;
153 static int loop_output = AVFMT_NOOUTPUTLOOP;
154 static int qp_hist = 0;
155 #if CONFIG_AVFILTER
156 static char *vfilters = NULL;
157 #endif
158
159 static int intra_only = 0;
160 static int audio_sample_rate = 0;
161 #define QSCALE_NONE -99999
162 static float audio_qscale = QSCALE_NONE;
163 static int audio_disable = 0;
164 static int audio_channels = 0;
165 static char *audio_codec_name = NULL;
166 static unsigned int audio_codec_tag = 0;
167 static char *audio_language = NULL;
168
169 static int subtitle_disable = 0;
170 static char *subtitle_codec_name = NULL;
171 static char *subtitle_language = NULL;
172 static unsigned int subtitle_codec_tag = 0;
173
174 static int data_disable = 0;
175 static char *data_codec_name = NULL;
176 static unsigned int data_codec_tag = 0;
177
178 static float mux_preload= 0.5;
179 static float mux_max_delay= 0.7;
180
181 static int64_t recording_time = INT64_MAX;
182 static int64_t start_time = 0;
183 static int64_t input_ts_offset = 0;
184 static int file_overwrite = 0;
185 static AVDictionary *metadata;
186 static int do_benchmark = 0;
187 static int do_hex_dump = 0;
188 static int do_pkt_dump = 0;
189 static int do_psnr = 0;
190 static int do_pass = 0;
191 static char *pass_logfilename_prefix = NULL;
192 static int audio_stream_copy = 0;
193 static int video_stream_copy = 0;
194 static int subtitle_stream_copy = 0;
195 static int data_stream_copy = 0;
196 static int video_sync_method= -1;
197 static int audio_sync_method= 0;
198 static float audio_drift_threshold= 0.1;
199 static int copy_ts= 0;
200 static int copy_tb;
201 static int opt_shortest = 0;
202 static char *vstats_filename;
203 static FILE *vstats_file;
204 static int opt_programid = 0;
205 static int copy_initial_nonkeyframes = 0;
206
207 static int rate_emu = 0;
208
209 static int audio_volume = 256;
210
211 static int exit_on_error = 0;
212 static int using_stdin = 0;
213 static int verbose = 1;
214 static int thread_count= 1;
215 static int64_t video_size = 0;
216 static int64_t audio_size = 0;
217 static int64_t extra_size = 0;
218 static int nb_frames_dup = 0;
219 static int nb_frames_drop = 0;
220 static int input_sync;
221 static uint64_t limit_filesize = 0;
222 static int force_fps = 0;
223 static char *forced_key_frames = NULL;
224
225 static float dts_delta_threshold = 10;
226
227 static int64_t timer_start;
228
229 static uint8_t *audio_buf;
230 static uint8_t *audio_out;
231 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
232
233 static short *samples;
234
235 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
236 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
237 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
238
239 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
240
241 struct InputStream;
242
243 typedef struct OutputStream {
244 int file_index; /* file index */
245 int index; /* stream index in the output file */
246 int source_index; /* InputStream index */
247 AVStream *st; /* stream in the output file */
248 int encoding_needed; /* true if encoding needed for this stream */
249 int frame_number;
250 /* input pts and corresponding output pts
251 for A/V sync */
252 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
253 struct InputStream *sync_ist; /* input stream to sync against */
254 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
255 AVBitStreamFilterContext *bitstream_filters;
256 AVCodec *enc;
257
258 /* video only */
259 int video_resample;
260 AVFrame pict_tmp; /* temporary image for resampling */
261 struct SwsContext *img_resample_ctx; /* for image resampling */
262 int resample_height;
263 int resample_width;
264 int resample_pix_fmt;
265 AVRational frame_rate;
266
267 float frame_aspect_ratio;
268
269 /* forced key frames */
270 int64_t *forced_kf_pts;
271 int forced_kf_count;
272 int forced_kf_index;
273
274 /* audio only */
275 int audio_resample;
276 ReSampleContext *resample; /* for audio resampling */
277 int resample_sample_fmt;
278 int resample_channels;
279 int resample_sample_rate;
280 int reformat_pair;
281 AVAudioConvert *reformat_ctx;
282 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
283 FILE *logfile;
284
285 #if CONFIG_AVFILTER
286 AVFilterContext *output_video_filter;
287 AVFilterContext *input_video_filter;
288 AVFilterBufferRef *picref;
289 char *avfilter;
290 AVFilterGraph *graph;
291 #endif
292
293 int sws_flags;
294 AVDictionary *opts;
295 } OutputStream;
296
297 static OutputStream **output_streams_for_file[MAX_FILES] = { NULL };
298 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
299
300 typedef struct InputStream {
301 int file_index;
302 AVStream *st;
303 int discard; /* true if stream data should be discarded */
304 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
305 AVCodec *dec;
306
307 int64_t start; /* time when read started */
308 int64_t next_pts; /* synthetic pts for cases where pkt.pts
309 is not defined */
310 int64_t pts; /* current pts */
311 PtsCorrectionContext pts_ctx;
312 double ts_scale;
313 int is_start; /* is 1 at the start and after a discontinuity */
314 int showed_multi_packet_warning;
315 int is_past_recording_time;
316 AVDictionary *opts;
317 } InputStream;
318
319 typedef struct InputFile {
320 AVFormatContext *ctx;
321 int eof_reached; /* true if eof reached */
322 int ist_index; /* index of first stream in ist_table */
323 int buffer_size; /* current total buffer size */
324 int64_t ts_offset;
325 } InputFile;
326
327 static InputStream *input_streams = NULL;
328 static int nb_input_streams = 0;
329 static InputFile *input_files = NULL;
330 static int nb_input_files = 0;
331
332 #if CONFIG_AVFILTER
333
334 static int configure_video_filters(InputStream *ist, OutputStream *ost)
335 {
336 AVFilterContext *last_filter, *filter;
337 /** filter graph containing all filters including input & output */
338 AVCodecContext *codec = ost->st->codec;
339 AVCodecContext *icodec = ist->st->codec;
340 FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
341 AVRational sample_aspect_ratio;
342 char args[255];
343 int ret;
344
345 ost->graph = avfilter_graph_alloc();
346
347 if (ist->st->sample_aspect_ratio.num){
348 sample_aspect_ratio = ist->st->sample_aspect_ratio;
349 }else
350 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
351
352 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
353 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
354 sample_aspect_ratio.num, sample_aspect_ratio.den);
355
356 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
357 "src", args, NULL, ost->graph);
358 if (ret < 0)
359 return ret;
360 ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
361 "out", NULL, &ffsink_ctx, ost->graph);
362 if (ret < 0)
363 return ret;
364 last_filter = ost->input_video_filter;
365
366 if (codec->width != icodec->width || codec->height != icodec->height) {
367 snprintf(args, 255, "%d:%d:flags=0x%X",
368 codec->width,
369 codec->height,
370 ost->sws_flags);
371 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
372 NULL, args, NULL, ost->graph)) < 0)
373 return ret;
374 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
375 return ret;
376 last_filter = filter;
377 }
378
379 snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
380 ost->graph->scale_sws_opts = av_strdup(args);
381
382 if (ost->avfilter) {
383 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
384 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
385
386 outputs->name = av_strdup("in");
387 outputs->filter_ctx = last_filter;
388 outputs->pad_idx = 0;
389 outputs->next = NULL;
390
391 inputs->name = av_strdup("out");
392 inputs->filter_ctx = ost->output_video_filter;
393 inputs->pad_idx = 0;
394 inputs->next = NULL;
395
396 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
397 return ret;
398 av_freep(&ost->avfilter);
399 } else {
400 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
401 return ret;
402 }
403
404 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
405 return ret;
406
407 codec->width = ost->output_video_filter->inputs[0]->w;
408 codec->height = ost->output_video_filter->inputs[0]->h;
409 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
410 ost->frame_aspect_ratio ? // overriden by the -aspect cli option
411 av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
412 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
413
414 return 0;
415 }
416 #endif /* CONFIG_AVFILTER */
417
418 static void term_exit(void)
419 {
420 av_log(NULL, AV_LOG_QUIET, "");
421 }
422
423 static volatile int received_sigterm = 0;
424 static volatile int received_nb_signals = 0;
425
426 static void
427 sigterm_handler(int sig)
428 {
429 received_sigterm = sig;
430 received_nb_signals++;
431 term_exit();
432 }
433
434 static void term_init(void)
435 {
436 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
437 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
438 #ifdef SIGXCPU
439 signal(SIGXCPU, sigterm_handler);
440 #endif
441 }
442
443 static int decode_interrupt_cb(void)
444 {
445 return received_nb_signals > 1;
446 }
447
448 static int ffmpeg_exit(int ret)
449 {
450 int i;
451
452 /* close files */
453 for(i=0;i<nb_output_files;i++) {
454 AVFormatContext *s = output_files[i];
455 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
456 avio_close(s->pb);
457 avformat_free_context(s);
458 av_free(output_streams_for_file[i]);
459 av_dict_free(&output_opts[i]);
460 }
461 for(i=0;i<nb_input_files;i++) {
462 av_close_input_file(input_files[i].ctx);
463 }
464 for (i = 0; i < nb_input_streams; i++)
465 av_dict_free(&input_streams[i].opts);
466
467 av_free(intra_matrix);
468 av_free(inter_matrix);
469
470 if (vstats_file)
471 fclose(vstats_file);
472 av_free(vstats_filename);
473
474 av_free(streamid_map);
475 av_free(stream_maps);
476 av_free(meta_data_maps);
477
478 av_freep(&input_streams);
479 av_freep(&input_files);
480
481 av_free(video_codec_name);
482 av_free(audio_codec_name);
483 av_free(subtitle_codec_name);
484 av_free(data_codec_name);
485
486 uninit_opts();
487 av_free(audio_buf);
488 av_free(audio_out);
489 allocated_audio_buf_size= allocated_audio_out_size= 0;
490 av_free(samples);
491
492 #if CONFIG_AVFILTER
493 avfilter_uninit();
494 #endif
495
496 if (received_sigterm) {
497 fprintf(stderr,
498 "Received signal %d: terminating.\n",
499 (int) received_sigterm);
500 exit (255);
501 }
502
503 exit(ret); /* not all OS-es handle main() return value */
504 return ret;
505 }
506
507 static void assert_avoptions(AVDictionary *m)
508 {
509 AVDictionaryEntry *t;
510 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
511 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
512 ffmpeg_exit(1);
513 }
514 }
515
516 static void assert_codec_experimental(AVCodecContext *c, int encoder)
517 {
518 const char *codec_string = encoder ? "encoder" : "decoder";
519 AVCodec *codec;
520 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
521 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
522 av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
523 "results.\nAdd '-strict experimental' if you want to use it.\n",
524 codec_string, c->codec->name);
525 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
526 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
527 av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
528 codec_string, codec->name);
529 ffmpeg_exit(1);
530 }
531 }
532
533 /* similar to ff_dynarray_add() and av_fast_realloc() */
534 static void *grow_array(void *array, int elem_size, int *size, int new_size)
535 {
536 if (new_size >= INT_MAX / elem_size) {
537 fprintf(stderr, "Array too big.\n");
538 ffmpeg_exit(1);
539 }
540 if (*size < new_size) {
541 uint8_t *tmp = av_realloc(array, new_size*elem_size);
542 if (!tmp) {
543 fprintf(stderr, "Could not alloc buffer.\n");
544 ffmpeg_exit(1);
545 }
546 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
547 *size = new_size;
548 return tmp;
549 }
550 return array;
551 }
552
553 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
554 {
555 if(codec && codec->sample_fmts){
556 const enum AVSampleFormat *p= codec->sample_fmts;
557 for(; *p!=-1; p++){
558 if(*p == st->codec->sample_fmt)
559 break;
560 }
561 if (*p == -1) {
562 av_log(NULL, AV_LOG_WARNING,
563 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
564 av_get_sample_fmt_name(st->codec->sample_fmt),
565 codec->name,
566 av_get_sample_fmt_name(codec->sample_fmts[0]));
567 st->codec->sample_fmt = codec->sample_fmts[0];
568 }
569 }
570 }
571
572 /**
573 * Update the requested input sample format based on the output sample format.
574 * This is currently only used to request float output from decoders which
575 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
576 * Ideally this will be removed in the future when decoders do not do format
577 * conversion and only output in their native format.
578 */
579 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
580 AVCodecContext *enc)
581 {
582 /* if sample formats match or a decoder sample format has already been
583 requested, just return */
584 if (enc->sample_fmt == dec->sample_fmt ||
585 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
586 return;
587
588 /* if decoder supports more than one output format */
589 if (dec_codec && dec_codec->sample_fmts &&
590 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
591 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
592 const enum AVSampleFormat *p;
593 int min_dec = -1, min_inc = -1;
594
595 /* find a matching sample format in the encoder */
596 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
597 if (*p == enc->sample_fmt) {
598 dec->request_sample_fmt = *p;
599 return;
600 } else if (*p > enc->sample_fmt) {
601 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
602 } else
603 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
604 }
605
606 /* if none match, provide the one that matches quality closest */
607 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
608 enc->sample_fmt - min_dec;
609 }
610 }
611
612 static void choose_sample_rate(AVStream *st, AVCodec *codec)
613 {
614 if(codec && codec->supported_samplerates){
615 const int *p= codec->supported_samplerates;
616 int best=0;
617 int best_dist=INT_MAX;
618 for(; *p; p++){
619 int dist= abs(st->codec->sample_rate - *p);
620 if(dist < best_dist){
621 best_dist= dist;
622 best= *p;
623 }
624 }
625 if(best_dist){
626 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
627 }
628 st->codec->sample_rate= best;
629 }
630 }
631
632 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
633 {
634 if(codec && codec->pix_fmts){
635 const enum PixelFormat *p= codec->pix_fmts;
636 if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
637 if(st->codec->codec_id==CODEC_ID_MJPEG){
638 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
639 }else if(st->codec->codec_id==CODEC_ID_LJPEG){
640 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};
641 }
642 }
643 for(; *p!=-1; p++){
644 if(*p == st->codec->pix_fmt)
645 break;
646 }
647 if (*p == -1) {
648 if(st->codec->pix_fmt != PIX_FMT_NONE)
649 av_log(NULL, AV_LOG_WARNING,
650 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
651 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
652 codec->name,
653 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
654 st->codec->pix_fmt = codec->pix_fmts[0];
655 }
656 }
657 }
658
659 static OutputStream *new_output_stream(AVFormatContext *oc, int file_idx, AVCodec *codec)
660 {
661 OutputStream *ost;
662 AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
663 int idx = oc->nb_streams - 1;
664
665 if (!st) {
666 av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
667 ffmpeg_exit(1);
668 }
669
670 output_streams_for_file[file_idx] =
671 grow_array(output_streams_for_file[file_idx],
672 sizeof(*output_streams_for_file[file_idx]),
673 &nb_output_streams_for_file[file_idx],
674 oc->nb_streams);
675 ost = output_streams_for_file[file_idx][idx] =
676 av_mallocz(sizeof(OutputStream));
677 if (!ost) {
678 fprintf(stderr, "Could not alloc output stream\n");
679 ffmpeg_exit(1);
680 }
681 ost->file_index = file_idx;
682 ost->index = idx;
683 ost->st = st;
684 ost->enc = codec;
685 if (codec)
686 ost->opts = filter_codec_opts(codec_opts, codec->id, 1);
687
688 avcodec_get_context_defaults3(st->codec, codec);
689
690 ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
691 return ost;
692 }
693
694 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
695 {
696 int i, err;
697 AVFormatContext *ic = NULL;
698 int nopts = 0;
699
700 err = avformat_open_input(&ic, filename, NULL, NULL);
701 if (err < 0)
702 return err;
703 /* copy stream format */
704 for(i=0;i<ic->nb_streams;i++) {
705 AVStream *st;
706 OutputStream *ost;
707 AVCodec *codec;
708
709 codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
710 ost = new_output_stream(s, nb_output_files, codec);
711 st = ost->st;
712
713 // FIXME: a more elegant solution is needed
714 memcpy(st, ic->streams[i], sizeof(AVStream));
715 st->info = NULL;
716 avcodec_copy_context(st->codec, ic->streams[i]->codec);
717
718 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
719 if (audio_stream_copy) {
720 st->stream_copy = 1;
721 } else
722 choose_sample_fmt(st, codec);
723 } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
724 if (video_stream_copy) {
725 st->stream_copy = 1;
726 } else
727 choose_pixel_fmt(st, codec);
728 }
729
730 if(st->codec->flags & CODEC_FLAG_BITEXACT)
731 nopts = 1;
732 }
733
734 av_close_input_file(ic);
735 return 0;
736 }
737
738 static double
739 get_sync_ipts(const OutputStream *ost)
740 {
741 const InputStream *ist = ost->sync_ist;
742 return (double)(ist->pts - start_time)/AV_TIME_BASE;
743 }
744
745 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
746 int ret;
747
748 while(bsfc){
749 AVPacket new_pkt= *pkt;
750 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
751 &new_pkt.data, &new_pkt.size,
752 pkt->data, pkt->size,
753 pkt->flags & AV_PKT_FLAG_KEY);
754 if(a>0){
755 av_free_packet(pkt);
756 new_pkt.destruct= av_destruct_packet;
757 } else if(a<0){
758 fprintf(stderr, "%s failed for stream %d, codec %s",
759 bsfc->filter->name, pkt->stream_index,
760 avctx->codec ? avctx->codec->name : "copy");
761 print_error("", a);
762 if (exit_on_error)
763 ffmpeg_exit(1);
764 }
765 *pkt= new_pkt;
766
767 bsfc= bsfc->next;
768 }
769
770 ret= av_interleaved_write_frame(s, pkt);
771 if(ret < 0){
772 print_error("av_interleaved_write_frame()", ret);
773 ffmpeg_exit(1);
774 }
775 }
776
777 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
778
779 static void do_audio_out(AVFormatContext *s,
780 OutputStream *ost,
781 InputStream *ist,
782 unsigned char *buf, int size)
783 {
784 uint8_t *buftmp;
785 int64_t audio_out_size, audio_buf_size;
786 int64_t allocated_for_size= size;
787
788 int size_out, frame_bytes, ret, resample_changed;
789 AVCodecContext *enc= ost->st->codec;
790 AVCodecContext *dec= ist->st->codec;
791 int osize = av_get_bytes_per_sample(enc->sample_fmt);
792 int isize = av_get_bytes_per_sample(dec->sample_fmt);
793 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
794
795 need_realloc:
796 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
797 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
798 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
799 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
800 audio_buf_size*= osize*enc->channels;
801
802 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
803 if(coded_bps > 8*osize)
804 audio_out_size= audio_out_size * coded_bps / (8*osize);
805 audio_out_size += FF_MIN_BUFFER_SIZE;
806
807 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
808 fprintf(stderr, "Buffer sizes too large\n");
809 ffmpeg_exit(1);
810 }
811
812 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
813 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
814 if (!audio_buf || !audio_out){
815 fprintf(stderr, "Out of memory in do_audio_out\n");
816 ffmpeg_exit(1);
817 }
818
819 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
820 ost->audio_resample = 1;
821
822 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
823 ost->resample_channels != dec->channels ||
824 ost->resample_sample_rate != dec->sample_rate;
825
826 if ((ost->audio_resample && !ost->resample) || resample_changed) {
827 if (resample_changed) {
828 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",
829 ist->file_index, ist->st->index,
830 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
831 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
832 ost->resample_sample_fmt = dec->sample_fmt;
833 ost->resample_channels = dec->channels;
834 ost->resample_sample_rate = dec->sample_rate;
835 if (ost->resample)
836 audio_resample_close(ost->resample);
837 }
838 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
839 if (audio_sync_method <= 1 &&
840 ost->resample_sample_fmt == enc->sample_fmt &&
841 ost->resample_channels == enc->channels &&
842 ost->resample_sample_rate == enc->sample_rate) {
843 ost->resample = NULL;
844 ost->audio_resample = 0;
845 } else if (ost->audio_resample) {
846 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
847 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
848 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
849 enc->sample_rate, dec->sample_rate,
850 enc->sample_fmt, dec->sample_fmt,
851 16, 10, 0, 0.8);
852 if (!ost->resample) {
853 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
854 dec->channels, dec->sample_rate,
855 enc->channels, enc->sample_rate);
856 ffmpeg_exit(1);
857 }
858 }
859 }
860
861 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
862 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
863 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
864 if (ost->reformat_ctx)
865 av_audio_convert_free(ost->reformat_ctx);
866 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
867 dec->sample_fmt, 1, NULL, 0);
868 if (!ost->reformat_ctx) {
869 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
870 av_get_sample_fmt_name(dec->sample_fmt),
871 av_get_sample_fmt_name(enc->sample_fmt));
872 ffmpeg_exit(1);
873 }
874 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
875 }
876
877 if(audio_sync_method){
878 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
879 - av_fifo_size(ost->fifo)/(enc->channels * 2);
880 double idelta= delta*dec->sample_rate / enc->sample_rate;
881 int byte_delta= ((int)idelta)*2*dec->channels;
882
883 //FIXME resample delay
884 if(fabs(delta) > 50){
885 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
886 if(byte_delta < 0){
887 byte_delta= FFMAX(byte_delta, -size);
888 size += byte_delta;
889 buf -= byte_delta;
890 if(verbose > 2)
891 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
892 if(!size)
893 return;
894 ist->is_start=0;
895 }else{
896 static uint8_t *input_tmp= NULL;
897 input_tmp= av_realloc(input_tmp, byte_delta + size);
898
899 if(byte_delta > allocated_for_size - size){
900 allocated_for_size= byte_delta + (int64_t)size;
901 goto need_realloc;
902 }
903 ist->is_start=0;
904
905 memset(input_tmp, 0, byte_delta);
906 memcpy(input_tmp + byte_delta, buf, size);
907 buf= input_tmp;
908 size += byte_delta;
909 if(verbose > 2)
910 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
911 }
912 }else if(audio_sync_method>1){
913 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
914 av_assert0(ost->audio_resample);
915 if(verbose > 2)
916 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
917 // 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));
918 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
919 }
920 }
921 }else
922 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
923 - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
924
925 if (ost->audio_resample) {
926 buftmp = audio_buf;
927 size_out = audio_resample(ost->resample,
928 (short *)buftmp, (short *)buf,
929 size / (dec->channels * isize));
930 size_out = size_out * enc->channels * osize;
931 } else {
932 buftmp = buf;
933 size_out = size;
934 }
935
936 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
937 const void *ibuf[6]= {buftmp};
938 void *obuf[6]= {audio_buf};
939 int istride[6]= {isize};
940 int ostride[6]= {osize};
941 int len= size_out/istride[0];
942 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
943 printf("av_audio_convert() failed\n");
944 if (exit_on_error)
945 ffmpeg_exit(1);
946 return;
947 }
948 buftmp = audio_buf;
949 size_out = len*osize;
950 }
951
952 /* now encode as many frames as possible */
953 if (enc->frame_size > 1) {
954 /* output resampled raw samples */
955 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
956 fprintf(stderr, "av_fifo_realloc2() failed\n");
957 ffmpeg_exit(1);
958 }
959 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
960
961 frame_bytes = enc->frame_size * osize * enc->channels;
962
963 while (av_fifo_size(ost->fifo) >= frame_bytes) {
964 AVPacket pkt;
965 av_init_packet(&pkt);
966
967 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
968
969 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
970
971 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
972 (short *)audio_buf);
973 if (ret < 0) {
974 fprintf(stderr, "Audio encoding failed\n");
975 ffmpeg_exit(1);
976 }
977 audio_size += ret;
978 pkt.stream_index= ost->index;
979 pkt.data= audio_out;
980 pkt.size= ret;
981 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
982 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
983 pkt.flags |= AV_PKT_FLAG_KEY;
984 write_frame(s, &pkt, enc, ost->bitstream_filters);
985
986 ost->sync_opts += enc->frame_size;
987 }
988 } else {
989 AVPacket pkt;
990 av_init_packet(&pkt);
991
992 ost->sync_opts += size_out / (osize * enc->channels);
993
994 /* output a pcm frame */
995 /* determine the size of the coded buffer */
996 size_out /= osize;
997 if (coded_bps)
998 size_out = size_out*coded_bps/8;
999
1000 if(size_out > audio_out_size){
1001 fprintf(stderr, "Internal error, buffer size too small\n");
1002 ffmpeg_exit(1);
1003 }
1004
1005 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
1006 ret = avcodec_encode_audio(enc, audio_out, size_out,
1007 (short *)buftmp);
1008 if (ret < 0) {
1009 fprintf(stderr, "Audio encoding failed\n");
1010 ffmpeg_exit(1);
1011 }
1012 audio_size += ret;
1013 pkt.stream_index= ost->index;
1014 pkt.data= audio_out;
1015 pkt.size= ret;
1016 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1017 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1018 pkt.flags |= AV_PKT_FLAG_KEY;
1019 write_frame(s, &pkt, enc, ost->bitstream_filters);
1020 }
1021 }
1022
1023 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1024 {
1025 AVCodecContext *dec;
1026 AVPicture *picture2;
1027 AVPicture picture_tmp;
1028 uint8_t *buf = 0;
1029
1030 dec = ist->st->codec;
1031
1032 /* deinterlace : must be done before any resize */
1033 if (do_deinterlace) {
1034 int size;
1035
1036 /* create temporary picture */
1037 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1038 buf = av_malloc(size);
1039 if (!buf)
1040 return;
1041
1042 picture2 = &picture_tmp;
1043 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1044
1045 if(avpicture_deinterlace(picture2, picture,
1046 dec->pix_fmt, dec->width, dec->height) < 0) {
1047 /* if error, do not deinterlace */
1048 fprintf(stderr, "Deinterlacing failed\n");
1049 av_free(buf);
1050 buf = NULL;
1051 picture2 = picture;
1052 }
1053 } else {
1054 picture2 = picture;
1055 }
1056
1057 if (picture != picture2)
1058 *picture = *picture2;
1059 *bufp = buf;
1060 }
1061
1062 /* we begin to correct av delay at this threshold */
1063 #define AV_DELAY_MAX 0.100
1064
1065 static void do_subtitle_out(AVFormatContext *s,
1066 OutputStream *ost,
1067 InputStream *ist,
1068 AVSubtitle *sub,
1069 int64_t pts)
1070 {
1071 static uint8_t *subtitle_out = NULL;
1072 int subtitle_out_max_size = 1024 * 1024;
1073 int subtitle_out_size, nb, i;
1074 AVCodecContext *enc;
1075 AVPacket pkt;
1076
1077 if (pts == AV_NOPTS_VALUE) {
1078 fprintf(stderr, "Subtitle packets must have a pts\n");
1079 if (exit_on_error)
1080 ffmpeg_exit(1);
1081 return;
1082 }
1083
1084 enc = ost->st->codec;
1085
1086 if (!subtitle_out) {
1087 subtitle_out = av_malloc(subtitle_out_max_size);
1088 }
1089
1090 /* Note: DVB subtitle need one packet to draw them and one other
1091 packet to clear them */
1092 /* XXX: signal it in the codec context ? */
1093 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1094 nb = 2;
1095 else
1096 nb = 1;
1097
1098 for(i = 0; i < nb; i++) {
1099 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1100 // start_display_time is required to be 0
1101 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1102 sub->end_display_time -= sub->start_display_time;
1103 sub->start_display_time = 0;
1104 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1105 subtitle_out_max_size, sub);
1106 if (subtitle_out_size < 0) {
1107 fprintf(stderr, "Subtitle encoding failed\n");
1108 ffmpeg_exit(1);
1109 }
1110
1111 av_init_packet(&pkt);
1112 pkt.stream_index = ost->index;
1113 pkt.data = subtitle_out;
1114 pkt.size = subtitle_out_size;
1115 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1116 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1117 /* XXX: the pts correction is handled here. Maybe handling
1118 it in the codec would be better */
1119 if (i == 0)
1120 pkt.pts += 90 * sub->start_display_time;
1121 else
1122 pkt.pts += 90 * sub->end_display_time;
1123 }
1124 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1125 }
1126 }
1127
1128 static int bit_buffer_size= 1024*256;
1129 static uint8_t *bit_buffer= NULL;
1130
1131 static void do_video_out(AVFormatContext *s,
1132 OutputStream *ost,
1133 InputStream *ist,
1134 AVFrame *in_picture,
1135 int *frame_size, float quality)
1136 {
1137 int nb_frames, i, ret, resample_changed;
1138 AVFrame *final_picture, *formatted_picture;
1139 AVCodecContext *enc, *dec;
1140 double sync_ipts;
1141
1142 enc = ost->st->codec;
1143 dec = ist->st->codec;
1144
1145 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1146
1147 /* by default, we output a single frame */
1148 nb_frames = 1;
1149
1150 *frame_size = 0;
1151
1152 if(video_sync_method){
1153 double vdelta = sync_ipts - ost->sync_opts;
1154 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1155 if (vdelta < -1.1)
1156 nb_frames = 0;
1157 else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1158 if(vdelta<=-0.6){
1159 nb_frames=0;
1160 }else if(vdelta>0.6)
1161 ost->sync_opts= lrintf(sync_ipts);
1162 }else if (vdelta > 1.1)
1163 nb_frames = lrintf(vdelta);
1164 //fprintf(stderr, "vdelta:%f, ost->sync_opts:%"PRId64", ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, get_sync_ipts(ost), nb_frames);
1165 if (nb_frames == 0){
1166 ++nb_frames_drop;
1167 if (verbose>2)
1168 fprintf(stderr, "*** drop!\n");
1169 }else if (nb_frames > 1) {
1170 nb_frames_dup += nb_frames - 1;
1171 if (verbose>2)
1172 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1173 }
1174 }else
1175 ost->sync_opts= lrintf(sync_ipts);
1176
1177 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1178 if (nb_frames <= 0)
1179 return;
1180
1181 formatted_picture = in_picture;
1182 final_picture = formatted_picture;
1183
1184 resample_changed = ost->resample_width != dec->width ||
1185 ost->resample_height != dec->height ||
1186 ost->resample_pix_fmt != dec->pix_fmt;
1187
1188 if (resample_changed) {
1189 av_log(NULL, AV_LOG_INFO,
1190 "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1191 ist->file_index, ist->st->index,
1192 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1193 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt));
1194 if(!ost->video_resample)
1195 ffmpeg_exit(1);
1196 }
1197
1198 #if !CONFIG_AVFILTER
1199 if (ost->video_resample) {
1200 final_picture = &ost->pict_tmp;
1201 if (resample_changed) {
1202 /* initialize a new scaler context */
1203 sws_freeContext(ost->img_resample_ctx);
1204 ost->img_resample_ctx = sws_getContext(
1205 ist->st->codec->width,
1206 ist->st->codec->height,
1207 ist->st->codec->pix_fmt,
1208 ost->st->codec->width,
1209 ost->st->codec->height,
1210 ost->st->codec->pix_fmt,
1211 ost->sws_flags, NULL, NULL, NULL);
1212 if (ost->img_resample_ctx == NULL) {
1213 fprintf(stderr, "Cannot get resampling context\n");
1214 ffmpeg_exit(1);
1215 }
1216 }
1217 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1218 0, ost->resample_height, final_picture->data, final_picture->linesize);
1219 }
1220 #endif
1221
1222 /* duplicates frame if needed */
1223 for(i=0;i<nb_frames;i++) {
1224 AVPacket pkt;
1225 av_init_packet(&pkt);
1226 pkt.stream_index= ost->index;
1227
1228 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1229 /* raw pictures are written as AVPicture structure to
1230 avoid any copies. We support temorarily the older
1231 method. */
1232 AVFrame* old_frame = enc->coded_frame;
1233 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1234 pkt.data= (uint8_t *)final_picture;
1235 pkt.size= sizeof(AVPicture);
1236 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1237 pkt.flags |= AV_PKT_FLAG_KEY;
1238
1239 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1240 enc->coded_frame = old_frame;
1241 } else {
1242 AVFrame big_picture;
1243
1244 big_picture= *final_picture;
1245 /* better than nothing: use input picture interlaced
1246 settings */
1247 big_picture.interlaced_frame = in_picture->interlaced_frame;
1248 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1249 if(top_field_first == -1)
1250 big_picture.top_field_first = in_picture->top_field_first;
1251 else
1252 big_picture.top_field_first = top_field_first;
1253 }
1254
1255 /* handles sameq here. This is not correct because it may
1256 not be a global option */
1257 big_picture.quality = quality;
1258 if(!me_threshold)
1259 big_picture.pict_type = 0;
1260 // big_picture.pts = AV_NOPTS_VALUE;
1261 big_picture.pts= ost->sync_opts;
1262 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1263 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1264 if (ost->forced_kf_index < ost->forced_kf_count &&
1265 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1266 big_picture.pict_type = AV_PICTURE_TYPE_I;
1267 ost->forced_kf_index++;
1268 }
1269 ret = avcodec_encode_video(enc,
1270 bit_buffer, bit_buffer_size,
1271 &big_picture);
1272 if (ret < 0) {
1273 fprintf(stderr, "Video encoding failed\n");
1274 ffmpeg_exit(1);
1275 }
1276
1277 if(ret>0){
1278 pkt.data= bit_buffer;
1279 pkt.size= ret;
1280 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1281 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1282 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1283 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1284 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1285
1286 if(enc->coded_frame->key_frame)
1287 pkt.flags |= AV_PKT_FLAG_KEY;
1288 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1289 *frame_size = ret;
1290 video_size += ret;
1291 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1292 // enc->frame_number-1, ret, enc->pict_type);
1293 /* if two pass, output log */
1294 if (ost->logfile && enc->stats_out) {
1295 fprintf(ost->logfile, "%s", enc->stats_out);
1296 }
1297 }
1298 }
1299 ost->sync_opts++;
1300 ost->frame_number++;
1301 }
1302 }
1303
1304 static double psnr(double d){
1305 return -10.0*log(d)/log(10.0);
1306 }
1307
1308 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1309 int frame_size)
1310 {
1311 AVCodecContext *enc;
1312 int frame_number;
1313 double ti1, bitrate, avg_bitrate;
1314
1315 /* this is executed just the first time do_video_stats is called */
1316 if (!vstats_file) {
1317 vstats_file = fopen(vstats_filename, "w");
1318 if (!vstats_file) {
1319 perror("fopen");
1320 ffmpeg_exit(1);
1321 }
1322 }
1323
1324 enc = ost->st->codec;
1325 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1326 frame_number = ost->frame_number;
1327 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1328 if (enc->flags&CODEC_FLAG_PSNR)
1329 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1330
1331 fprintf(vstats_file,"f_size= %6d ", frame_size);
1332 /* compute pts value */
1333 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1334 if (ti1 < 0.01)
1335 ti1 = 0.01;
1336
1337 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1338 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1339 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1340 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1341 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1342 }
1343 }
1344
1345 static void print_report(AVFormatContext **output_files,
1346 OutputStream **ost_table, int nb_ostreams,
1347 int is_last_report)
1348 {
1349 char buf[1024];
1350 OutputStream *ost;
1351 AVFormatContext *oc;
1352 int64_t total_size;
1353 AVCodecContext *enc;
1354 int frame_number, vid, i;
1355 double bitrate, ti1, pts;
1356 static int64_t last_time = -1;
1357 static int qp_histogram[52];
1358
1359 if (!is_last_report) {
1360 int64_t cur_time;
1361 /* display the report every 0.5 seconds */
1362 cur_time = av_gettime();
1363 if (last_time == -1) {
1364 last_time = cur_time;
1365 return;
1366 }
1367 if ((cur_time - last_time) < 500000)
1368 return;
1369 last_time = cur_time;
1370 }
1371
1372
1373 oc = output_files[0];
1374
1375 total_size = avio_size(oc->pb);
1376 if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1377 total_size= avio_tell(oc->pb);
1378
1379 buf[0] = '\0';
1380 ti1 = 1e10;
1381 vid = 0;
1382 for(i=0;i<nb_ostreams;i++) {
1383 float q = -1;
1384 ost = ost_table[i];
1385 enc = ost->st->codec;
1386 if (!ost->st->stream_copy && enc->coded_frame)
1387 q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1388 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1389 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1390 }
1391 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1392 float t = (av_gettime()-timer_start) / 1000000.0;
1393
1394 frame_number = ost->frame_number;
1395 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1396 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1397 if(is_last_report)
1398 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1399 if(qp_hist){
1400 int j;
1401 int qp = lrintf(q);
1402 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1403 qp_histogram[qp]++;
1404 for(j=0; j<32; j++)
1405 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1406 }
1407 if (enc->flags&CODEC_FLAG_PSNR){
1408 int j;
1409 double error, error_sum=0;
1410 double scale, scale_sum=0;
1411 char type[3]= {'Y','U','V'};
1412 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1413 for(j=0; j<3; j++){
1414 if(is_last_report){
1415 error= enc->error[j];
1416 scale= enc->width*enc->height*255.0*255.0*frame_number;
1417 }else{
1418 error= enc->coded_frame->error[j];
1419 scale= enc->width*enc->height*255.0*255.0;
1420 }
1421 if(j) scale/=4;
1422 error_sum += error;
1423 scale_sum += scale;
1424 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1425 }
1426 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1427 }
1428 vid = 1;
1429 }
1430 /* compute min output value */
1431 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1432 if ((pts < ti1) && (pts > 0))
1433 ti1 = pts;
1434 }
1435 if (ti1 < 0.01)
1436 ti1 = 0.01;
1437
1438 if (verbose > 0 || is_last_report) {
1439 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1440
1441 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1442 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1443 (double)total_size / 1024, ti1, bitrate);
1444
1445 if (nb_frames_dup || nb_frames_drop)
1446 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1447 nb_frames_dup, nb_frames_drop);
1448
1449 if (verbose >= 0)
1450 fprintf(stderr, "%s \r", buf);
1451
1452 fflush(stderr);
1453 }
1454
1455 if (is_last_report && verbose >= 0){
1456 int64_t raw= audio_size + video_size + extra_size;
1457 fprintf(stderr, "\n");
1458 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1459 video_size/1024.0,
1460 audio_size/1024.0,
1461 extra_size/1024.0,
1462 100.0*(total_size - raw)/raw
1463 );
1464 }
1465 }
1466
1467 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1468 {
1469 int fill_char = 0x00;
1470 if (sample_fmt == AV_SAMPLE_FMT_U8)
1471 fill_char = 0x80;
1472 memset(buf, fill_char, size);
1473 }
1474
1475 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1476 static int output_packet(InputStream *ist, int ist_index,
1477 OutputStream **ost_table, int nb_ostreams,
1478 const AVPacket *pkt)
1479 {
1480 AVFormatContext *os;
1481 OutputStream *ost;
1482 int ret, i;
1483 int got_output;
1484 AVFrame picture;
1485 void *buffer_to_free = NULL;
1486 static unsigned int samples_size= 0;
1487 AVSubtitle subtitle, *subtitle_to_free;
1488 int64_t pkt_pts = AV_NOPTS_VALUE;
1489 #if CONFIG_AVFILTER
1490 int frame_available;
1491 #endif
1492 float quality;
1493
1494 AVPacket avpkt;
1495 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1496
1497 if(ist->next_pts == AV_NOPTS_VALUE)
1498 ist->next_pts= ist->pts;
1499
1500 if (pkt == NULL) {
1501 /* EOF handling */
1502 av_init_packet(&avpkt);
1503 avpkt.data = NULL;
1504 avpkt.size = 0;
1505 goto handle_eof;
1506 } else {
1507 avpkt = *pkt;
1508 }
1509
1510 if(pkt->dts != AV_NOPTS_VALUE)
1511 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1512 if(pkt->pts != AV_NOPTS_VALUE)
1513 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1514
1515 //while we have more to decode or while the decoder did output something on EOF
1516 while (avpkt.size > 0 || (!pkt && got_output)) {
1517 uint8_t *data_buf, *decoded_data_buf;
1518 int data_size, decoded_data_size;
1519 handle_eof:
1520 ist->pts= ist->next_pts;
1521
1522 if(avpkt.size && avpkt.size != pkt->size &&
1523 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1524 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1525 ist->showed_multi_packet_warning=1;
1526 }
1527
1528 /* decode the packet if needed */
1529 decoded_data_buf = NULL; /* fail safe */
1530 decoded_data_size= 0;
1531 data_buf = avpkt.data;
1532 data_size = avpkt.size;
1533 subtitle_to_free = NULL;
1534 if (ist->decoding_needed) {
1535 switch(ist->st->codec->codec_type) {
1536 case AVMEDIA_TYPE_AUDIO:{
1537 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1538 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1539 av_free(samples);
1540 samples= av_malloc(samples_size);
1541 }
1542 decoded_data_size= samples_size;
1543 /* XXX: could avoid copy if PCM 16 bits with same
1544 endianness as CPU */
1545 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1546 &avpkt);
1547 if (ret < 0)
1548 return ret;
1549 avpkt.data += ret;
1550 avpkt.size -= ret;
1551 data_size = ret;
1552 got_output = decoded_data_size > 0;
1553 /* Some bug in mpeg audio decoder gives */
1554 /* decoded_data_size < 0, it seems they are overflows */
1555 if (!got_output) {
1556 /* no audio frame */
1557 continue;
1558 }
1559 decoded_data_buf = (uint8_t *)samples;
1560 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1561 (ist->st->codec->sample_rate * ist->st->codec->channels);
1562 break;}
1563 case AVMEDIA_TYPE_VIDEO:
1564 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1565 /* XXX: allocate picture correctly */
1566 avcodec_get_frame_defaults(&picture);
1567 avpkt.pts = pkt_pts;
1568 avpkt.dts = ist->pts;
1569 pkt_pts = AV_NOPTS_VALUE;
1570
1571 ret = avcodec_decode_video2(ist->st->codec,
1572 &picture, &got_output, &avpkt);
1573 quality = same_quality ? picture.quality : 0;
1574 if (ret < 0)
1575 return ret;
1576 if (!got_output) {
1577 /* no picture yet */
1578 goto discard_packet;
1579 }
1580 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1581 if (ist->st->codec->time_base.num != 0) {
1582 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1583 ist->next_pts += ((int64_t)AV_TIME_BASE *
1584 ist->st->codec->time_base.num * ticks) /
1585 ist->st->codec->time_base.den;
1586 }
1587 avpkt.size = 0;
1588 buffer_to_free = NULL;
1589 pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1590 break;
1591 case AVMEDIA_TYPE_SUBTITLE:
1592 ret = avcodec_decode_subtitle2(ist->st->codec,
1593 &subtitle, &got_output, &avpkt);
1594 if (ret < 0)
1595 return ret;
1596 if (!got_output) {
1597 goto discard_packet;
1598 }
1599 subtitle_to_free = &subtitle;
1600 avpkt.size = 0;
1601 break;
1602 default:
1603 return -1;
1604 }
1605 } else {
1606 switch(ist->st->codec->codec_type) {
1607 case AVMEDIA_TYPE_AUDIO:
1608 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1609 ist->st->codec->sample_rate;
1610 break;
1611 case AVMEDIA_TYPE_VIDEO:
1612 if (ist->st->codec->time_base.num != 0) {
1613 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1614 ist->next_pts += ((int64_t)AV_TIME_BASE *
1615 ist->st->codec->time_base.num * ticks) /
1616 ist->st->codec->time_base.den;
1617 }
1618 break;
1619 }
1620 ret = avpkt.size;
1621 avpkt.size = 0;
1622 }
1623
1624 #if CONFIG_AVFILTER
1625 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1626 for (i = 0; i < nb_ostreams; i++) {
1627 ost = ost_table[i];
1628 if (ost->input_video_filter && ost->source_index == ist_index) {
1629 AVRational sar;
1630 if (ist->st->sample_aspect_ratio.num)
1631 sar = ist->st->sample_aspect_ratio;
1632 else
1633 sar = ist->st->codec->sample_aspect_ratio;
1634 // add it to be filtered
1635 av_vsrc_buffer_add_frame(ost->input_video_filter, &picture,
1636 ist->pts,
1637 sar);
1638 }
1639 }
1640 }
1641 #endif
1642
1643 // preprocess audio (volume)
1644 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1645 if (audio_volume != 256) {
1646 short *volp;
1647 volp = samples;
1648 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1649 int v = ((*volp) * audio_volume + 128) >> 8;
1650 if (v < -32768) v = -32768;
1651 if (v > 32767) v = 32767;
1652 *volp++ = v;
1653 }
1654 }
1655 }
1656
1657 /* frame rate emulation */
1658 if (rate_emu) {
1659 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1660 int64_t now = av_gettime() - ist->start;
1661 if (pts > now)
1662 usleep(pts - now);
1663 }
1664 /* if output time reached then transcode raw format,
1665 encode packets and output them */
1666 if (start_time == 0 || ist->pts >= start_time)
1667 for(i=0;i<nb_ostreams;i++) {
1668 int frame_size;
1669
1670 ost = ost_table[i];
1671 if (ost->source_index == ist_index) {
1672 #if CONFIG_AVFILTER
1673 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1674 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1675 while (frame_available) {
1676 AVRational ist_pts_tb;
1677 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1678 get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1679 if (ost->picref)
1680 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1681 #endif
1682 os = output_files[ost->file_index];
1683
1684 /* set the input output pts pairs */
1685 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1686
1687 if (ost->encoding_needed) {
1688 av_assert0(ist->decoding_needed);
1689 switch(ost->st->codec->codec_type) {
1690 case AVMEDIA_TYPE_AUDIO:
1691 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1692 break;
1693 case AVMEDIA_TYPE_VIDEO:
1694 #if CONFIG_AVFILTER
1695 if (ost->picref->video && !ost->frame_aspect_ratio)
1696 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1697 #endif
1698 do_video_out(os, ost, ist, &picture, &frame_size,
1699 same_quality ? quality : ost->st->codec->global_quality);
1700 if (vstats_filename && frame_size)
1701 do_video_stats(os, ost, frame_size);
1702 break;
1703 case AVMEDIA_TYPE_SUBTITLE:
1704 do_subtitle_out(os, ost, ist, &subtitle,
1705 pkt->pts);
1706 break;
1707 default:
1708 abort();
1709 }
1710 } else {
1711 AVFrame avframe; //FIXME/XXX remove this
1712 AVPacket opkt;
1713 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1714
1715 av_init_packet(&opkt);
1716
1717 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1718 #if !CONFIG_AVFILTER
1719 continue;
1720 #else
1721 goto cont;
1722 #endif
1723
1724 /* no reencoding needed : output the packet directly */
1725 /* force the input stream PTS */
1726
1727 avcodec_get_frame_defaults(&avframe);
1728 ost->st->codec->coded_frame= &avframe;
1729 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1730
1731 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1732 audio_size += data_size;
1733 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1734 video_size += data_size;
1735 ost->sync_opts++;
1736 }
1737
1738 opkt.stream_index= ost->index;
1739 if(pkt->pts != AV_NOPTS_VALUE)
1740 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1741 else
1742 opkt.pts= AV_NOPTS_VALUE;
1743
1744 if (pkt->dts == AV_NOPTS_VALUE)
1745 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1746 else
1747 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1748 opkt.dts -= ost_tb_start_time;
1749
1750 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1751 opkt.flags= pkt->flags;
1752
1753 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1754 if( ost->st->codec->codec_id != CODEC_ID_H264
1755 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1756 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1757 ) {
1758 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1759 opkt.destruct= av_destruct_packet;
1760 } else {
1761 opkt.data = data_buf;
1762 opkt.size = data_size;
1763 }
1764
1765 write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1766 ost->st->codec->frame_number++;
1767 ost->frame_number++;
1768 av_free_packet(&opkt);
1769 }
1770 #if CONFIG_AVFILTER
1771 cont:
1772 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1773 ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1774 if (ost->picref)
1775 avfilter_unref_buffer(ost->picref);
1776 }
1777 #endif
1778 }
1779 }
1780
1781 av_free(buffer_to_free);
1782 /* XXX: allocate the subtitles in the codec ? */
1783 if (subtitle_to_free) {
1784 avsubtitle_free(subtitle_to_free);
1785 subtitle_to_free = NULL;
1786 }
1787 }
1788 discard_packet:
1789 if (pkt == NULL) {
1790 /* EOF handling */
1791
1792 for(i=0;i<nb_ostreams;i++) {
1793 ost = ost_table[i];
1794 if (ost->source_index == ist_index) {
1795 AVCodecContext *enc= ost->st->codec;
1796 os = output_files[ost->file_index];
1797
1798 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1799 continue;
1800 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1801 continue;
1802
1803 if (ost->encoding_needed) {
1804 for(;;) {
1805 AVPacket pkt;
1806 int fifo_bytes;
1807 av_init_packet(&pkt);
1808 pkt.stream_index= ost->index;
1809
1810 switch(ost->st->codec->codec_type) {
1811 case AVMEDIA_TYPE_AUDIO:
1812 fifo_bytes = av_fifo_size(ost->fifo);
1813 ret = 0;
1814 /* encode any samples remaining in fifo */
1815 if (fifo_bytes > 0) {
1816 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1817 int fs_tmp = enc->frame_size;
1818
1819 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1820 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1821 enc->frame_size = fifo_bytes / (osize * enc->channels);
1822 } else { /* pad */
1823 int frame_bytes = enc->frame_size*osize*enc->channels;
1824 if (allocated_audio_buf_size < frame_bytes)
1825 ffmpeg_exit(1);
1826 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1827 }
1828
1829 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1830 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1831 ost->st->time_base.num, enc->sample_rate);
1832 enc->frame_size = fs_tmp;
1833 }
1834 if(ret <= 0) {
1835 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1836 }
1837 if (ret < 0) {
1838 fprintf(stderr, "Audio encoding failed\n");
1839 ffmpeg_exit(1);
1840 }
1841 audio_size += ret;
1842 pkt.flags |= AV_PKT_FLAG_KEY;
1843 break;
1844 case AVMEDIA_TYPE_VIDEO:
1845 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1846 if (ret < 0) {
1847 fprintf(stderr, "Video encoding failed\n");
1848 ffmpeg_exit(1);
1849 }
1850 video_size += ret;
1851 if(enc->coded_frame && enc->coded_frame->key_frame)
1852 pkt.flags |= AV_PKT_FLAG_KEY;
1853 if (ost->logfile && enc->stats_out) {
1854 fprintf(ost->logfile, "%s", enc->stats_out);
1855 }
1856 break;
1857 default:
1858 ret=-1;
1859 }
1860
1861 if(ret<=0)
1862 break;
1863 pkt.data= bit_buffer;
1864 pkt.size= ret;
1865 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1866 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1867 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1868 }
1869 }
1870 }
1871 }
1872 }
1873
1874 return 0;
1875 }
1876
1877 static void print_sdp(AVFormatContext **avc, int n)
1878 {
1879 char sdp[2048];
1880
1881 av_sdp_create(avc, n, sdp, sizeof(sdp));
1882 printf("SDP:\n%s\n", sdp);
1883 fflush(stdout);
1884 }
1885
1886 static int copy_chapters(int infile, int outfile)
1887 {
1888 AVFormatContext *is = input_files[infile].ctx;
1889 AVFormatContext *os = output_files[outfile];
1890 int i;
1891
1892 for (i = 0; i < is->nb_chapters; i++) {
1893 AVChapter *in_ch = is->chapters[i], *out_ch;
1894 int64_t ts_off = av_rescale_q(start_time - input_files[infile].ts_offset,
1895 AV_TIME_BASE_Q, in_ch->time_base);
1896 int64_t rt = (recording_time == INT64_MAX) ? INT64_MAX :
1897 av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1898
1899
1900 if (in_ch->end < ts_off)
1901 continue;
1902 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1903 break;
1904
1905 out_ch = av_mallocz(sizeof(AVChapter));
1906 if (!out_ch)
1907 return AVERROR(ENOMEM);
1908
1909 out_ch->id = in_ch->id;
1910 out_ch->time_base = in_ch->time_base;
1911 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1912 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1913
1914 if (metadata_chapters_autocopy)
1915 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1916
1917 os->nb_chapters++;
1918 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1919 if (!os->chapters)
1920 return AVERROR(ENOMEM);
1921 os->chapters[os->nb_chapters - 1] = out_ch;
1922 }
1923 return 0;
1924 }
1925
1926 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1927 AVCodecContext *avctx)
1928 {
1929 char *p;
1930 int n = 1, i;
1931 int64_t t;
1932
1933 for (p = kf; *p; p++)
1934 if (*p == ',')
1935 n++;
1936 ost->forced_kf_count = n;
1937 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1938 if (!ost->forced_kf_pts) {
1939 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1940 ffmpeg_exit(1);
1941 }
1942 for (i = 0; i < n; i++) {
1943 p = i ? strchr(p, ',') + 1 : kf;
1944 t = parse_time_or_die("force_key_frames", p, 1);
1945 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1946 }
1947 }
1948
1949 /*
1950 * The following code is the main loop of the file converter
1951 */
1952 static int transcode(AVFormatContext **output_files,
1953 int nb_output_files,
1954 InputFile *input_files,
1955 int nb_input_files,
1956 StreamMap *stream_maps, int nb_stream_maps)
1957 {
1958 int ret = 0, i, j, k, n, nb_ostreams = 0;
1959 AVFormatContext *is, *os;
1960 AVCodecContext *codec, *icodec;
1961 OutputStream *ost, **ost_table = NULL;
1962 InputStream *ist;
1963 char error[1024];
1964 int want_sdp = 1;
1965 uint8_t no_packet[MAX_FILES]={0};
1966 int no_packet_count=0;
1967
1968 if (rate_emu)
1969 for (i = 0; i < nb_input_streams; i++)
1970 input_streams[i].start = av_gettime();
1971
1972 /* output stream init */
1973 nb_ostreams = 0;
1974 for(i=0;i<nb_output_files;i++) {
1975 os = output_files[i];
1976 if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1977 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1978 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1979 ret = AVERROR(EINVAL);
1980 goto fail;
1981 }
1982 nb_ostreams += os->nb_streams;
1983 }
1984 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1985 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1986 ret = AVERROR(EINVAL);
1987 goto fail;
1988 }
1989
1990 /* Sanity check the mapping args -- do the input files & streams exist? */
1991 for(i=0;i<nb_stream_maps;i++) {
1992 int fi = stream_maps[i].file_index;
1993 int si = stream_maps[i].stream_index;
1994
1995 if (fi < 0 || fi > nb_input_files - 1 ||
1996 si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1997 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1998 ret = AVERROR(EINVAL);
1999 goto fail;
2000 }
2001 fi = stream_maps[i].sync_file_index;
2002 si = stream_maps[i].sync_stream_index;
2003 if (fi < 0 || fi > nb_input_files - 1 ||
2004 si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
2005 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2006 ret = AVERROR(EINVAL);
2007 goto fail;
2008 }
2009 }
2010
2011 ost_table = av_mallocz(sizeof(OutputStream *) * nb_ostreams);
2012 if (!ost_table)
2013 goto fail;
2014 n = 0;
2015 for(k=0;k<nb_output_files;k++) {
2016 os = output_files[k];
2017 for(i=0;i<os->nb_streams;i++,n++) {
2018 int found;
2019 ost = ost_table[n] = output_streams_for_file[k][i];
2020 if (nb_stream_maps > 0) {
2021 ost->source_index = input_files[stream_maps[n].file_index].ist_index +
2022 stream_maps[n].stream_index;
2023
2024 /* Sanity check that the stream types match */
2025 if (input_streams[ost->source_index].st->codec->codec_type != ost->st->codec->codec_type) {
2026 int i= ost->file_index;
2027 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2028 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2029 stream_maps[n].file_index, stream_maps[n].stream_index,
2030 ost->file_index, ost->index);
2031 ffmpeg_exit(1);
2032 }
2033
2034 } else {
2035 int best_nb_frames=-1;
2036 /* get corresponding input stream index : we select the first one with the right type */
2037 found = 0;
2038 for (j = 0; j < nb_input_streams; j++) {
2039 int skip=0;
2040 ist = &input_streams[j];
2041 if(opt_programid){
2042 int pi,si;
2043 AVFormatContext *f = input_files[ist->file_index].ctx;
2044 skip=1;
2045 for(pi=0; pi<f->nb_programs; pi++){
2046 AVProgram *p= f->programs[pi];
2047 if(p->id == opt_programid)
2048 for(si=0; si<p->nb_stream_indexes; si++){
2049 if(f->streams[ p->stream_index[si] ] == ist->st)
2050 skip=0;
2051 }
2052 }
2053 }
2054 if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2055 ist->st->codec->codec_type == ost->st->codec->codec_type) {
2056 if(best_nb_frames < ist->st->codec_info_nb_frames){
2057 best_nb_frames= ist->st->codec_info_nb_frames;
2058 ost->source_index = j;
2059 found = 1;
2060 }
2061 }
2062 }
2063
2064 if (!found) {
2065 if(! opt_programid) {
2066 /* try again and reuse existing stream */
2067 for (j = 0; j < nb_input_streams; j++) {
2068 ist = &input_streams[j];
2069 if ( ist->st->codec->codec_type == ost->st->codec->codec_type
2070 && ist->st->discard != AVDISCARD_ALL) {
2071 ost->source_index = j;
2072 found = 1;
2073 }
2074 }
2075 }
2076 if (!found) {
2077 int i= ost->file_index;
2078 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2079 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2080 ost->file_index, ost->index);
2081 ffmpeg_exit(1);
2082 }
2083 }
2084 }
2085 ist = &input_streams[ost->source_index];
2086 ist->discard = 0;
2087 ost->sync_ist = (nb_stream_maps > 0) ?
2088 &input_streams[input_files[stream_maps[n].sync_file_index].ist_index +
2089 stream_maps[n].sync_stream_index] : ist;
2090 }
2091 }
2092
2093 /* for each output stream, we compute the right encoding parameters */
2094 for(i=0;i<nb_ostreams;i++) {
2095 ost = ost_table[i];
2096 os = output_files[ost->file_index];
2097 ist = &input_streams[ost->source_index];
2098
2099 codec = ost->st->codec;
2100 icodec = ist->st->codec;
2101
2102 if (metadata_streams_autocopy)
2103 av_dict_copy(&ost->st->metadata, ist->st->metadata,
2104 AV_DICT_DONT_OVERWRITE);
2105
2106 ost->st->disposition = ist->st->disposition;
2107 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2108 codec->chroma_sample_location = icodec->chroma_sample_location;
2109
2110 if (ost->st->stream_copy) {
2111 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2112
2113 if (extra_size > INT_MAX)
2114 goto fail;
2115
2116 /* if stream_copy is selected, no need to decode or encode */
2117 codec->codec_id = icodec->codec_id;
2118 codec->codec_type = icodec->codec_type;
2119
2120 if(!codec->codec_tag){
2121 if( !os->oformat->codec_tag
2122 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2123 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2124 codec->codec_tag = icodec->codec_tag;
2125 }
2126
2127 codec->bit_rate = icodec->bit_rate;
2128 codec->rc_max_rate = icodec->rc_max_rate;
2129 codec->rc_buffer_size = icodec->rc_buffer_size;
2130 codec->extradata= av_mallocz(extra_size);
2131 if (!codec->extradata)
2132 goto fail;
2133 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2134 codec->extradata_size= icodec->extradata_size;
2135 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){
2136 codec->time_base = icodec->time_base;
2137 codec->time_base.num *= icodec->ticks_per_frame;
2138 av_reduce(&codec->time_base.num, &codec->time_base.den,
2139 codec->time_base.num, codec->time_base.den, INT_MAX);
2140 }else
2141 codec->time_base = ist->st->time_base;
2142 switch(codec->codec_type) {
2143 case AVMEDIA_TYPE_AUDIO:
2144 if(audio_volume != 256) {
2145 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2146 ffmpeg_exit(1);
2147 }
2148 codec->channel_layout = icodec->channel_layout;
2149 codec->sample_rate = icodec->sample_rate;
2150 codec->channels = icodec->channels;
2151 codec->frame_size = icodec->frame_size;
2152 codec->audio_service_type = icodec->audio_service_type;
2153 codec->block_align= icodec->block_align;
2154 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2155 codec->block_align= 0;
2156 if(codec->codec_id == CODEC_ID_AC3)
2157 codec->block_align= 0;
2158 break;
2159 case AVMEDIA_TYPE_VIDEO:
2160 codec->pix_fmt = icodec->pix_fmt;
2161 codec->width = icodec->width;
2162 codec->height = icodec->height;
2163 codec->has_b_frames = icodec->has_b_frames;
2164 if (!codec->sample_aspect_ratio.num) {
2165 codec->sample_aspect_ratio =
2166 ost->st->sample_aspect_ratio =
2167 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2168 ist->st->codec->sample_aspect_ratio.num ?
2169 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2170 }
2171 break;
2172 case AVMEDIA_TYPE_SUBTITLE:
2173 codec->width = icodec->width;
2174 codec->height = icodec->height;
2175 break;
2176 case AVMEDIA_TYPE_DATA:
2177 break;
2178 default:
2179 abort();
2180 }
2181 } else {
2182 if (!ost->enc)
2183 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2184 switch(codec->codec_type) {
2185 case AVMEDIA_TYPE_AUDIO:
2186 ost->fifo= av_fifo_alloc(1024);
2187 if(!ost->fifo)
2188 goto fail;
2189 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2190 if (!codec->sample_rate) {
2191 codec->sample_rate = icodec->sample_rate;
2192 if (icodec->lowres)
2193 codec->sample_rate >>= icodec->lowres;
2194 }
2195 choose_sample_rate(ost->st, ost->enc);
2196 codec->time_base = (AVRational){1, codec->sample_rate};
2197 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2198 codec->sample_fmt = icodec->sample_fmt;
2199 choose_sample_fmt(ost->st, ost->enc);
2200 if (!codec->channels)
2201 codec->channels = icodec->channels;
2202 codec->channel_layout = icodec->channel_layout;
2203 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2204 codec->channel_layout = 0;
2205 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2206 icodec->request_channels = codec->channels;
2207 ist->decoding_needed = 1;
2208 ost->encoding_needed = 1;
2209 ost->resample_sample_fmt = icodec->sample_fmt;
2210 ost->resample_sample_rate = icodec->sample_rate;
2211 ost->resample_channels = icodec->channels;
2212 break;
2213 case AVMEDIA_TYPE_VIDEO:
2214 if (codec->pix_fmt == PIX_FMT_NONE)
2215 codec->pix_fmt = icodec->pix_fmt;
2216 choose_pixel_fmt(ost->st, ost->enc);
2217
2218 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2219 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2220 ffmpeg_exit(1);
2221 }
2222 ost->video_resample = codec->width != icodec->width ||
2223 codec->height != icodec->height ||
2224 codec->pix_fmt != icodec->pix_fmt;
2225 if (ost->video_resample) {
2226 #if !CONFIG_AVFILTER
2227 avcodec_get_frame_defaults(&ost->pict_tmp);
2228 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2229 codec->width, codec->height)) {
2230 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2231 ffmpeg_exit(1);
2232 }
2233 ost->img_resample_ctx = sws_getContext(
2234 icodec->width,
2235 icodec->height,
2236 icodec->pix_fmt,
2237 codec->width,
2238 codec->height,
2239 codec->pix_fmt,
2240 ost->sws_flags, NULL, NULL, NULL);
2241 if (ost->img_resample_ctx == NULL) {
2242 fprintf(stderr, "Cannot get resampling context\n");
2243 ffmpeg_exit(1);
2244 }
2245 #endif
2246 codec->bits_per_raw_sample= 0;
2247 }
2248 if (!codec->width || !codec->height) {
2249 codec->width = icodec->width;
2250 codec->height = icodec->height;
2251 }
2252 ost->resample_height = icodec->height;
2253 ost->resample_width = icodec->width;
2254 ost->resample_pix_fmt= icodec->pix_fmt;
2255 ost->encoding_needed = 1;
2256 ist->decoding_needed = 1;
2257
2258 if (!ost->frame_rate.num)
2259 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2260 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2261 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2262 ost->frame_rate = ost->enc->supported_framerates[idx];
2263 }
2264 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2265
2266 #if CONFIG_AVFILTER
2267 if (configure_video_filters(ist, ost)) {
2268 fprintf(stderr, "Error opening filters!\n");
2269 exit(1);
2270 }
2271 #endif
2272 break;
2273 case AVMEDIA_TYPE_SUBTITLE:
2274 ost->encoding_needed = 1;
2275 ist->decoding_needed = 1;
2276 break;
2277 default:
2278 abort();
2279 break;
2280 }
2281 /* two pass mode */
2282 if (ost->encoding_needed &&
2283 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2284 char logfilename[1024];
2285 FILE *f;
2286
2287 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2288 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2289 i);
2290 if (codec->flags & CODEC_FLAG_PASS1) {
2291 f = fopen(logfilename, "wb");
2292 if (!f) {
2293 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2294 ffmpeg_exit(1);
2295 }
2296 ost->logfile = f;
2297 } else {
2298 char *logbuffer;
2299 size_t logbuffer_size;
2300 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2301 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2302 ffmpeg_exit(1);
2303 }
2304 codec->stats_in = logbuffer;
2305 }
2306 }
2307 }
2308 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2309 int size= codec->width * codec->height;
2310 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2311 }
2312 }
2313
2314 if (!bit_buffer)
2315 bit_buffer = av_malloc(bit_buffer_size);
2316 if (!bit_buffer) {
2317 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2318 bit_buffer_size);
2319 ret = AVERROR(ENOMEM);
2320 goto fail;
2321 }
2322
2323 /* open each encoder */
2324 for(i=0;i<nb_ostreams;i++) {
2325 ost = ost_table[i];
2326 if (ost->encoding_needed) {
2327 AVCodec *codec = ost->enc;
2328 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2329 if (!codec) {
2330 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2331 ost->st->codec->codec_id, ost->file_index, ost->index);
2332 ret = AVERROR(EINVAL);
2333 goto dump_format;
2334 }
2335 if (dec->subtitle_header) {
2336 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2337 if (!ost->st->codec->subtitle_header) {
2338 ret = AVERROR(ENOMEM);
2339 goto dump_format;
2340 }
2341 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2342 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2343 }
2344 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2345 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2346 ost->file_index, ost->index);
2347 ret = AVERROR(EINVAL);
2348 goto dump_format;
2349 }
2350 assert_codec_experimental(ost->st->codec, 1);
2351 assert_avoptions(ost->opts);
2352 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2353 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2354 "It takes bits/s as argument, not kbits/s\n");
2355 extra_size += ost->st->codec->extradata_size;
2356 }
2357 }
2358
2359 /* open each decoder */
2360 for (i = 0; i < nb_input_streams; i++) {
2361 ist = &input_streams[i];
2362 if (ist->decoding_needed) {
2363 AVCodec *codec = ist->dec;
2364 if (!codec)
2365 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2366 if (!codec) {
2367 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2368 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2369 ret = AVERROR(EINVAL);
2370 goto dump_format;
2371 }
2372
2373 /* update requested sample format for the decoder based on the
2374 corresponding encoder sample format */
2375 for (j = 0; j < nb_ostreams; j++) {
2376 ost = ost_table[j];
2377 if (ost->source_index == i) {
2378 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2379 break;
2380 }
2381 }
2382
2383 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2384 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2385 ist->file_index, ist->st->index);
2386 ret = AVERROR(EINVAL);
2387 goto dump_format;
2388 }
2389 assert_codec_experimental(ist->st->codec, 0);
2390 assert_avoptions(ost->opts);
2391 //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2392 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2393 }
2394 }
2395
2396 /* init pts */
2397 for (i = 0; i < nb_input_streams; i++) {
2398 AVStream *st;
2399 ist = &input_streams[i];
2400 st= ist->st;
2401 ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2402 ist->next_pts = AV_NOPTS_VALUE;
2403 init_pts_correction(&ist->pts_ctx);
2404 ist->is_start = 1;
2405 }
2406
2407 /* set meta data information from input file if required */
2408 for (i=0;i<nb_meta_data_maps;i++) {
2409 AVFormatContext *files[2];
2410 AVDictionary **meta[2];
2411 int j;
2412
2413 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2414 if ((index) < 0 || (index) >= (nb_elems)) {\
2415 snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2416 (desc), (index));\
2417 ret = AVERROR(EINVAL);\
2418 goto dump_format;\
2419 }
2420
2421 int out_file_index = meta_data_maps[i][0].file;
2422 int in_file_index = meta_data_maps[i][1].file;
2423 if (in_file_index < 0 || out_file_index < 0)
2424 continue;
2425 METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2426 METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2427
2428 files[0] = output_files[out_file_index];
2429 files[1] = input_files[in_file_index].ctx;
2430
2431 for (j = 0; j < 2; j++) {
2432 MetadataMap *map = &meta_data_maps[i][j];
2433
2434 switch (map->type) {
2435 case 'g':
2436 meta[j] = &files[j]->metadata;
2437 break;
2438 case 's':
2439 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2440 meta[j] = &files[j]->streams[map->index]->metadata;
2441 break;
2442 case 'c':
2443 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2444 meta[j] = &files[j]->chapters[map->index]->metadata;
2445 break;
2446 case 'p':
2447 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2448 meta[j] = &files[j]->programs[map->index]->metadata;
2449 break;
2450 }
2451 }
2452
2453 av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
2454 }
2455
2456 /* copy global metadata by default */
2457 if (metadata_global_autocopy) {
2458
2459 for (i = 0; i < nb_output_files; i++)
2460 av_dict_copy(&output_files[i]->metadata, input_files[0].ctx->metadata,
2461 AV_DICT_DONT_OVERWRITE);
2462 }
2463
2464 /* copy chapters according to chapter maps */
2465 for (i = 0; i < nb_chapter_maps; i++) {
2466 int infile = chapter_maps[i].in_file;
2467 int outfile = chapter_maps[i].out_file;
2468
2469 if (infile < 0 || outfile < 0)
2470 continue;
2471 if (infile >= nb_input_files) {
2472 snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2473 ret = AVERROR(EINVAL);
2474 goto dump_format;
2475 }
2476 if (outfile >= nb_output_files) {
2477 snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2478 ret = AVERROR(EINVAL);
2479 goto dump_format;
2480 }
2481 copy_chapters(infile, outfile);
2482 }
2483
2484 /* copy chapters from the first input file that has them*/
2485 if (!nb_chapter_maps)
2486 for (i = 0; i < nb_input_files; i++) {
2487 if (!input_files[i].ctx->nb_chapters)
2488 continue;
2489
2490 for (j = 0; j < nb_output_files; j++)
2491 if ((ret = copy_chapters(i, j)) < 0)
2492 goto dump_format;
2493 break;
2494 }
2495
2496 /* open files and write file headers */
2497 for(i=0;i<nb_output_files;i++) {
2498 os = output_files[i];
2499 if (avformat_write_header(os, &output_opts[i]) < 0) {
2500 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2501 ret = AVERROR(EINVAL);
2502 goto dump_format;
2503 }
2504 assert_avoptions(output_opts[i]);
2505 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2506 want_sdp = 0;
2507 }
2508 }
2509
2510 dump_format:
2511 /* dump the file output parameters - cannot be done before in case
2512 of stream copy */
2513 for(i=0;i<nb_output_files;i++) {
2514 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2515 }
2516
2517 /* dump the stream mapping */
2518 if (verbose >= 0) {
2519 fprintf(stderr, "Stream mapping:\n");
2520 for(i=0;i<nb_ostreams;i++) {
2521 ost = ost_table[i];
2522 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2523 input_streams[ost->source_index].file_index,
2524 input_streams[ost->source_index].st->index,
2525 ost->file_index,
2526 ost->index);
2527 if (ost->sync_ist != &input_streams[ost->source_index])
2528 fprintf(stderr, " [sync #%d.%d]",
2529 ost->sync_ist->file_index,
2530 ost->sync_ist->st->index);
2531 fprintf(stderr, "\n");
2532 }
2533 }
2534
2535 if (ret) {
2536 fprintf(stderr, "%s\n", error);
2537 goto fail;
2538 }
2539
2540 if (want_sdp) {
2541 print_sdp(output_files, nb_output_files);
2542 }
2543
2544 if (verbose >= 0)
2545 fprintf(stderr, "Press ctrl-c to stop encoding\n");
2546 term_init();
2547
2548 timer_start = av_gettime();
2549
2550 for(; received_sigterm == 0;) {
2551 int file_index, ist_index;
2552 AVPacket pkt;
2553 double ipts_min;
2554 double opts_min;
2555
2556 redo:
2557 ipts_min= 1e100;
2558 opts_min= 1e100;
2559
2560 /* select the stream that we must read now by looking at the
2561 smallest output pts */
2562 file_index = -1;
2563 for(i=0;i<nb_ostreams;i++) {
2564 double ipts, opts;
2565 ost = ost_table[i];
2566 os = output_files[ost->file_index];
2567 ist = &input_streams[ost->source_index];
2568 if(ist->is_past_recording_time || no_packet[ist->file_index])
2569 continue;
2570 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2571 ipts = (double)ist->pts;
2572 if (!input_files[ist->file_index].eof_reached){
2573 if(ipts < ipts_min) {
2574 ipts_min = ipts;
2575 if(input_sync ) file_index = ist->file_index;
2576 }
2577 if(opts < opts_min) {
2578 opts_min = opts;
2579 if(!input_sync) file_index = ist->file_index;
2580 }
2581 }
2582 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2583 file_index= -1;
2584 break;
2585 }
2586 }
2587 /* if none, if is finished */
2588 if (file_index < 0) {
2589 if(no_packet_count){
2590 no_packet_count=0;
2591 memset(no_packet, 0, sizeof(no_packet));
2592 usleep(10000);
2593 continue;
2594 }
2595 break;
2596 }
2597
2598 /* finish if limit size exhausted */
2599 if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2600 break;
2601
2602 /* read a frame from it and output it in the fifo */
2603 is = input_files[file_index].ctx;
2604 ret= av_read_frame(is, &pkt);
2605 if(ret == AVERROR(EAGAIN)){
2606 no_packet[file_index]=1;
2607 no_packet_count++;
2608 continue;
2609 }
2610 if (ret < 0) {
2611 input_files[file_index].eof_reached = 1;
2612 if (opt_shortest)
2613 break;
2614 else
2615 continue;
2616 }
2617
2618 no_packet_count=0;
2619 memset(no_packet, 0, sizeof(no_packet));
2620
2621 if (do_pkt_dump) {
2622 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2623 is->streams[pkt.stream_index]);
2624 }
2625 /* the following test is needed in case new streams appear
2626 dynamically in stream : we ignore them */
2627 if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2628 goto discard_packet;
2629 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2630 ist = &input_streams[ist_index];
2631 if (ist->discard)
2632 goto discard_packet;
2633
2634 if (pkt.dts != AV_NOPTS_VALUE)
2635 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2636 if (pkt.pts != AV_NOPTS_VALUE)
2637 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2638
2639 if (ist->ts_scale) {
2640 if(pkt.pts != AV_NOPTS_VALUE)
2641 pkt.pts *= ist->ts_scale;
2642 if(pkt.dts != AV_NOPTS_VALUE)
2643 pkt.dts *= ist->ts_scale;
2644 }
2645
2646 // 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);
2647 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2648 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2649 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2650 int64_t delta= pkt_dts - ist->next_pts;
2651 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2652 input_files[ist->file_index].ts_offset -= delta;
2653 if (verbose > 2)
2654 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2655 delta, input_files[ist->file_index].ts_offset);
2656 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2657 if(pkt.pts != AV_NOPTS_VALUE)
2658 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2659 }
2660 }
2661
2662 /* finish if recording time exhausted */
2663 if (recording_time != INT64_MAX &&
2664 av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2665 ist->is_past_recording_time = 1;
2666 goto discard_packet;
2667 }
2668
2669 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2670 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2671
2672 if (verbose >= 0)
2673 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2674 ist->file_index, ist->st->index);
2675 if (exit_on_error)
2676 ffmpeg_exit(1);
2677 av_free_packet(&pkt);
2678 goto redo;
2679 }
2680
2681 discard_packet:
2682 av_free_packet(&pkt);
2683
2684 /* dump report by using the output first video and audio streams */
2685 print_report(output_files, ost_table, nb_ostreams, 0);
2686 }
2687
2688 /* at the end of stream, we must flush the decoder buffers */
2689 for (i = 0; i < nb_input_streams; i++) {
2690 ist = &input_streams[i];
2691 if (ist->decoding_needed) {
2692 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2693 }
2694 }
2695
2696 term_exit();
2697
2698 /* write the trailer if needed and close file */
2699 for(i=0;i<nb_output_files;i++) {
2700 os = output_files[i];
2701 av_write_trailer(os);
2702 }
2703
2704 /* dump report by using the first video and audio streams */
2705 print_report(output_files, ost_table, nb_ostreams, 1);
2706
2707 /* close each encoder */
2708 for(i=0;i<nb_ostreams;i++) {
2709 ost = ost_table[i];
2710 if (ost->encoding_needed) {
2711 av_freep(&ost->st->codec->stats_in);
2712 avcodec_close(ost->st->codec);
2713 }
2714 #if CONFIG_AVFILTER
2715 avfilter_graph_free(&ost->graph);
2716 #endif
2717 }
2718
2719 /* close each decoder */
2720 for (i = 0; i < nb_input_streams; i++) {
2721 ist = &input_streams[i];
2722 if (ist->decoding_needed) {
2723 avcodec_close(ist->st->codec);
2724 }
2725 }
2726
2727 /* finished ! */
2728 ret = 0;
2729
2730 fail:
2731 av_freep(&bit_buffer);
2732
2733 if (ost_table) {
2734 for(i=0;i<nb_ostreams;i++) {
2735 ost = ost_table[i];
2736 if (ost) {
2737 if (ost->st->stream_copy)
2738 av_freep(&ost->st->codec->extradata);
2739 if (ost->logfile) {
2740 fclose(ost->logfile);
2741 ost->logfile = NULL;
2742 }
2743 av_fifo_free(ost->fifo); /* works even if fifo is not
2744 initialized but set to zero */
2745 av_freep(&ost->st->codec->subtitle_header);
2746 av_free(ost->pict_tmp.data[0]);
2747 av_free(ost->forced_kf_pts);
2748 if (ost->video_resample)
2749 sws_freeContext(ost->img_resample_ctx);
2750 if (ost->resample)
2751 audio_resample_close(ost->resample);
2752 if (ost->reformat_ctx)
2753 av_audio_convert_free(ost->reformat_ctx);
2754 av_dict_free(&ost->opts);
2755 av_free(ost);
2756 }
2757 }
2758 av_free(ost_table);
2759 }
2760 return ret;
2761 }
2762
2763 static int opt_format(const char *opt, const char *arg)
2764 {
2765 last_asked_format = arg;
2766 return 0;
2767 }
2768
2769 static int opt_video_rc_override_string(const char *opt, const char *arg)
2770 {
2771 video_rc_override_string = arg;
2772 return 0;
2773 }
2774
2775 static int opt_me_threshold(const char *opt, const char *arg)
2776 {
2777 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2778 return 0;
2779 }
2780
2781 static int opt_verbose(const char *opt, const char *arg)
2782 {
2783 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2784 return 0;
2785 }
2786
2787 static int opt_frame_rate(const char *opt, const char *arg)
2788 {
2789 if (av_parse_video_rate(&frame_rate, arg) < 0) {
2790 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2791 ffmpeg_exit(1);
2792 }
2793 return 0;
2794 }
2795
2796 static int opt_frame_crop(const char *opt, const char *arg)
2797 {
2798 fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2799 return AVERROR(EINVAL);
2800 }
2801
2802 static int opt_frame_size(const char *opt, const char *arg)
2803 {
2804 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2805 fprintf(stderr, "Incorrect frame size\n");
2806 return AVERROR(EINVAL);
2807 }
2808 return 0;
2809 }
2810
2811 static int opt_pad(const char *opt, const char *arg) {
2812 fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2813 return -1;
2814 }
2815
2816 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2817 {
2818 if (strcmp(arg, "list")) {
2819 frame_pix_fmt = av_get_pix_fmt(arg);
2820 if (frame_pix_fmt == PIX_FMT_NONE) {
2821 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2822 return AVERROR(EINVAL);
2823 }
2824 } else {
2825 show_pix_fmts();
2826 ffmpeg_exit(0);
2827 }
2828 return 0;
2829 }
2830
2831 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2832 {
2833 int x = 0, y = 0;
2834 double ar = 0;
2835 const char *p;
2836 char *end;
2837
2838 p = strchr(arg, ':');
2839 if (p) {
2840 x = strtol(arg, &end, 10);
2841 if (end == p)
2842 y = strtol(end+1, &end, 10);
2843 if (x > 0 && y > 0)
2844 ar = (double)x / (double)y;
2845 } else
2846 ar = strtod(arg, NULL);
2847
2848 if (!ar) {
2849 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2850 return AVERROR(EINVAL);
2851 }
2852 frame_aspect_ratio = ar;
2853 return 0;
2854 }
2855
2856 static int opt_metadata(const char *opt, const char *arg)
2857 {
2858 char *mid= strchr(arg, '=');
2859
2860 if(!mid){
2861 fprintf(stderr, "Missing =\n");
2862 ffmpeg_exit(1);
2863 }
2864 *mid++= 0;
2865
2866 av_dict_set(&metadata, arg, mid, 0);
2867
2868 return 0;
2869 }
2870
2871 static int opt_qscale(const char *opt, const char *arg)
2872 {
2873 video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2874 if (video_qscale == 0) {
2875 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2876 return AVERROR(EINVAL);
2877 }
2878 return 0;
2879 }
2880
2881 static int opt_top_field_first(const char *opt, const char *arg)
2882 {
2883 top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2884 return 0;
2885 }
2886
2887 static int opt_thread_count(const char *opt, const char *arg)
2888 {
2889 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2890 #if !HAVE_THREADS
2891 if (verbose >= 0)
2892 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2893 #endif
2894 return 0;
2895 }
2896
2897 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2898 {
2899 if (strcmp(arg, "list")) {
2900 audio_sample_fmt = av_get_sample_fmt(arg);
2901 if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2902 av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2903 return AVERROR(EINVAL);
2904 }
2905 } else {
2906 int i;
2907 char fmt_str[128];
2908 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2909 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2910 ffmpeg_exit(0);
2911 }
2912 return 0;
2913 }
2914
2915 static int opt_audio_rate(const char *opt, const char *arg)
2916 {
2917 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2918 return 0;
2919 }
2920
2921 static int opt_audio_channels(const char *opt, const char *arg)
2922 {
2923 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2924 return 0;
2925 }
2926
2927 static int opt_video_channel(const char *opt, const char *arg)
2928 {
2929 av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
2930 opt_default("channel", arg);
2931 return 0;
2932 }
2933
2934 static int opt_video_standard(const char *opt, const char *arg)
2935 {
2936 av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
2937 opt_default("standard", arg);
2938 return 0;
2939 }
2940
2941 static int opt_codec(int *pstream_copy, char **pcodec_name,
2942 int codec_type, const char *arg)
2943 {
2944 av_freep(pcodec_name);
2945 if (!strcmp(arg, "copy")) {
2946 *pstream_copy = 1;
2947 } else {
2948 *pcodec_name = av_strdup(arg);
2949 }
2950 return 0;
2951 }
2952
2953 static int opt_audio_codec(const char *opt, const char *arg)
2954 {
2955 return opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2956 }
2957
2958 static int opt_video_codec(const char *opt, const char *arg)
2959 {
2960 return opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2961 }
2962
2963 static int opt_subtitle_codec(const char *opt, const char *arg)
2964 {
2965 return opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2966 }
2967
2968 static int opt_data_codec(const char *opt, const char *arg)
2969 {
2970 return opt_codec(&data_stream_copy, &data_codec_name, AVMEDIA_TYPE_DATA, arg);
2971 }
2972
2973 static int opt_codec_tag(const char *opt, const char *arg)
2974 {
2975 char *tail;
2976 uint32_t *codec_tag;
2977
2978 codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2979 !strcmp(opt, "vtag") ? &video_codec_tag :
2980 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2981 if (!codec_tag)
2982 return -1;
2983
2984 *codec_tag = strtol(arg, &tail, 0);
2985 if (!tail || *tail)
2986 *codec_tag = AV_RL32(arg);
2987
2988 return 0;
2989 }
2990
2991 static int opt_map(const char *opt, const char *arg)
2992 {
2993 StreamMap *m;
2994 char *p;
2995
2996 stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2997 m = &stream_maps[nb_stream_maps-1];
2998
2999 m->file_index = strtol(arg, &p, 0);
3000 if (*p)
3001 p++;
3002
3003 m->stream_index = strtol(p, &p, 0);
3004 if (*p) {
3005 p++;
3006 m->sync_file_index = strtol(p, &p, 0);
3007 if (*p)
3008 p++;
3009 m->sync_stream_index = strtol(p, &p, 0);
3010 } else {
3011 m->sync_file_index = m->file_index;
3012 m->sync_stream_index = m->stream_index;
3013 }
3014 return 0;
3015 }
3016
3017 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
3018 {
3019 *endptr = arg;
3020 if (*arg == ',') {
3021 *type = *(++arg);
3022 switch (*arg) {
3023 case 'g':
3024 break;
3025 case 's':
3026 case 'c':
3027 case 'p':
3028 *index = strtol(++arg, endptr, 0);
3029 break;
3030 default:
3031 fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3032 ffmpeg_exit(1);
3033 }
3034 } else
3035 *type = 'g';
3036 }
3037
3038 static int opt_map_metadata(const char *opt, const char *arg)
3039 {
3040 MetadataMap *m, *m1;
3041 char *p;
3042
3043 meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3044 &nb_meta_data_maps, nb_meta_data_maps + 1);
3045
3046 m = &meta_data_maps[nb_meta_data_maps - 1][0];
3047 m->file = strtol(arg, &p, 0);
3048 parse_meta_type(p, &m->type, &m->index, &p);
3049 if (*p)
3050 p++;
3051
3052 m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3053 m1->file = strtol(p, &p, 0);
3054 parse_meta_type(p, &m1->type, &m1->index, &p);
3055
3056 if (m->type == 'g' || m1->type == 'g')
3057 metadata_global_autocopy = 0;
3058 if (m->type == 's' || m1->type == 's')
3059 metadata_streams_autocopy = 0;
3060 if (m->type == 'c' || m1->type == 'c')
3061 metadata_chapters_autocopy = 0;
3062
3063 return 0;
3064 }
3065
3066 static int opt_map_meta_data(const char *opt, const char *arg)
3067 {
3068 fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3069 "Use -map_metadata instead.\n");
3070 return opt_map_metadata(opt, arg);
3071 }
3072
3073 static int opt_map_chapters(const char *opt, const char *arg)
3074 {
3075 ChapterMap *c;
3076 char *p;
3077
3078 chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3079 nb_chapter_maps + 1);
3080 c = &chapter_maps[nb_chapter_maps - 1];
3081 c->out_file = strtol(arg, &p, 0);
3082 if (*p)
3083 p++;
3084
3085 c->in_file = strtol(p, &p, 0);
3086 return 0;
3087 }
3088
3089 static int opt_input_ts_scale(const char *opt, const char *arg)
3090 {
3091 unsigned int stream;
3092 double scale;
3093 char *p;
3094
3095 stream = strtol(arg, &p, 0);
3096 if (*p)
3097 p++;
3098 scale= strtod(p, &p);
3099
3100 ts_scale = grow_array(ts_scale, sizeof(*ts_scale), &nb_ts_scale, stream + 1);
3101 ts_scale[stream] = scale;
3102 return 0;
3103 }
3104
3105 static int opt_recording_time(const char *opt, const char *arg)
3106 {
3107 recording_time = parse_time_or_die(opt, arg, 1);
3108 return 0;
3109 }
3110
3111 static int opt_start_time(const char *opt, const char *arg)
3112 {
3113 start_time = parse_time_or_die(opt, arg, 1);
3114 return 0;
3115 }
3116
3117 static int opt_recording_timestamp(const char *opt, const char *arg)
3118 {
3119 char buf[128];
3120 int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
3121 struct tm time = *gmtime((time_t*)&recording_timestamp);
3122 strftime(buf, sizeof(buf), "creation_time=%FT%T%z", &time);
3123 opt_metadata("metadata", buf);
3124
3125 av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
3126 "tag instead.\n", opt);
3127 return 0;
3128 }
3129
3130 static int opt_input_ts_offset(const char *opt, const char *arg)
3131 {
3132 input_ts_offset = parse_time_or_die(opt, arg, 1);
3133 return 0;
3134 }
3135
3136 static enum CodecID find_codec_or_die(const char *name, int type, int encoder)
3137 {
3138 const char *codec_string = encoder ? "encoder" : "decoder";
3139 AVCodec *codec;
3140
3141 if(!name)
3142 return CODEC_ID_NONE;
3143 codec = encoder ?
3144 avcodec_find_encoder_by_name(name) :
3145 avcodec_find_decoder_by_name(name);
3146 if(!codec) {
3147 fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3148 ffmpeg_exit(1);
3149 }
3150 if(codec->type != type) {
3151 fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3152 ffmpeg_exit(1);
3153 }
3154 return codec->id;
3155 }
3156
3157 static int opt_input_file(const char *opt, const char *filename)
3158 {
3159 AVFormatContext *ic;
3160 AVInputFormat *file_iformat = NULL;
3161 int err, i