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avconv: cosmetics -- move parse_forced_key_frames().
[libav.git] / avconv.c
1 /*
2 * avconv main
3 * Copyright (c) 2000-2011 The libav developers.
4 *
5 * This file is part of Libav.
6 *
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include "config.h"
23 #include <ctype.h>
24 #include <string.h>
25 #include <math.h>
26 #include <stdlib.h>
27 #include <errno.h>
28 #include <signal.h>
29 #include <limits.h>
30 #include <unistd.h>
31 #include "libavformat/avformat.h"
32 #include "libavdevice/avdevice.h"
33 #include "libswscale/swscale.h"
34 #include "libavutil/opt.h"
35 #include "libavcodec/audioconvert.h"
36 #include "libavutil/audioconvert.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavformat/os_support.h"
48
49 #if CONFIG_AVFILTER
50 # include "libavfilter/avfilter.h"
51 # include "libavfilter/avfiltergraph.h"
52 # include "libavfilter/vsrc_buffer.h"
53 #endif
54
55 #if HAVE_SYS_RESOURCE_H
56 #include <sys/types.h>
57 #include <sys/time.h>
58 #include <sys/resource.h>
59 #elif HAVE_GETPROCESSTIMES
60 #include <windows.h>
61 #endif
62 #if HAVE_GETPROCESSMEMORYINFO
63 #include <windows.h>
64 #include <psapi.h>
65 #endif
66
67 #if HAVE_SYS_SELECT_H
68 #include <sys/select.h>
69 #endif
70
71 #include <time.h>
72
73 #include "cmdutils.h"
74
75 #include "libavutil/avassert.h"
76
77 const char program_name[] = "avconv";
78 const int program_birth_year = 2000;
79
80 /* select an input stream for an output stream */
81 typedef struct StreamMap {
82 int disabled; /** 1 is this mapping is disabled by a negative map */
83 int file_index;
84 int stream_index;
85 int sync_file_index;
86 int sync_stream_index;
87 } StreamMap;
88
89 /**
90 * select an input file for an output file
91 */
92 typedef struct MetadataMap {
93 int file; //< file index
94 char type; //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
95 int index; //< stream/chapter/program number
96 } MetadataMap;
97
98 static const OptionDef options[];
99
100 #define MAX_FILES 100
101
102 static const char *last_asked_format = NULL;
103 static double *ts_scale;
104 static int nb_ts_scale;
105
106 static AVFormatContext *output_files[MAX_FILES];
107 static AVDictionary *output_opts[MAX_FILES];
108 static int nb_output_files = 0;
109
110 static StreamMap *stream_maps = NULL;
111 static int nb_stream_maps;
112
113 static AVDictionary *codec_names;
114
115 /* first item specifies output metadata, second is input */
116 static MetadataMap (*meta_data_maps)[2] = NULL;
117 static int nb_meta_data_maps;
118 static int metadata_global_autocopy = 1;
119 static int metadata_streams_autocopy = 1;
120 static int metadata_chapters_autocopy = 1;
121
122 static int chapters_input_file = INT_MAX;
123
124 /* indexed by output file stream index */
125 static int *streamid_map = NULL;
126 static int nb_streamid_map = 0;
127
128 static int frame_width = 0;
129 static int frame_height = 0;
130 static float frame_aspect_ratio = 0;
131 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
132 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
133 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
134 static AVRational frame_rate;
135 static float video_qscale = 0;
136 static uint16_t *intra_matrix = NULL;
137 static uint16_t *inter_matrix = NULL;
138 static const char *video_rc_override_string=NULL;
139 static int video_disable = 0;
140 static int video_discard = 0;
141 static unsigned int video_codec_tag = 0;
142 static char *video_language = NULL;
143 static int same_quant = 0;
144 static int do_deinterlace = 0;
145 static int top_field_first = -1;
146 static int me_threshold = 0;
147 static int intra_dc_precision = 8;
148 static int qp_hist = 0;
149 #if CONFIG_AVFILTER
150 static char *vfilters = NULL;
151 #endif
152
153 static int intra_only = 0;
154 static int audio_sample_rate = 0;
155 #define QSCALE_NONE -99999
156 static float audio_qscale = QSCALE_NONE;
157 static int audio_disable = 0;
158 static int audio_channels = 0;
159 static unsigned int audio_codec_tag = 0;
160 static char *audio_language = NULL;
161
162 static int subtitle_disable = 0;
163 static char *subtitle_language = NULL;
164 static unsigned int subtitle_codec_tag = 0;
165
166 static int data_disable = 0;
167 static unsigned int data_codec_tag = 0;
168
169 static float mux_preload= 0.5;
170 static float mux_max_delay= 0.7;
171
172 static int64_t recording_time = INT64_MAX;
173 static int64_t start_time = 0;
174 static int64_t input_ts_offset = 0;
175 static int file_overwrite = 0;
176 static AVDictionary *metadata;
177 static int do_benchmark = 0;
178 static int do_hex_dump = 0;
179 static int do_pkt_dump = 0;
180 static int do_psnr = 0;
181 static int do_pass = 0;
182 static char *pass_logfilename_prefix = NULL;
183 static int video_sync_method= -1;
184 static int audio_sync_method= 0;
185 static float audio_drift_threshold= 0.1;
186 static int copy_ts= 0;
187 static int copy_tb;
188 static int opt_shortest = 0;
189 static char *vstats_filename;
190 static FILE *vstats_file;
191 static int opt_programid = 0;
192 static int copy_initial_nonkeyframes = 0;
193
194 static int rate_emu = 0;
195
196 static int audio_volume = 256;
197
198 static int exit_on_error = 0;
199 static int using_stdin = 0;
200 static int verbose = 1;
201 static int thread_count= 1;
202 static int64_t video_size = 0;
203 static int64_t audio_size = 0;
204 static int64_t extra_size = 0;
205 static int nb_frames_dup = 0;
206 static int nb_frames_drop = 0;
207 static int input_sync;
208 static uint64_t limit_filesize = 0;
209 static int force_fps = 0;
210 static char *forced_key_frames = NULL;
211
212 static float dts_delta_threshold = 10;
213
214 static int64_t timer_start;
215
216 static uint8_t *audio_buf;
217 static uint8_t *audio_out;
218 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
219
220 static short *samples;
221
222 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
223 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
224 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
225
226 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
227
228 struct InputStream;
229
230 typedef struct OutputStream {
231 int file_index; /* file index */
232 int index; /* stream index in the output file */
233 int source_index; /* InputStream index */
234 AVStream *st; /* stream in the output file */
235 int encoding_needed; /* true if encoding needed for this stream */
236 int frame_number;
237 /* input pts and corresponding output pts
238 for A/V sync */
239 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
240 struct InputStream *sync_ist; /* input stream to sync against */
241 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
242 AVBitStreamFilterContext *bitstream_filters;
243 AVCodec *enc;
244
245 /* video only */
246 int video_resample;
247 AVFrame pict_tmp; /* temporary image for resampling */
248 struct SwsContext *img_resample_ctx; /* for image resampling */
249 int resample_height;
250 int resample_width;
251 int resample_pix_fmt;
252 AVRational frame_rate;
253
254 float frame_aspect_ratio;
255
256 /* forced key frames */
257 int64_t *forced_kf_pts;
258 int forced_kf_count;
259 int forced_kf_index;
260
261 /* audio only */
262 int audio_resample;
263 ReSampleContext *resample; /* for audio resampling */
264 int resample_sample_fmt;
265 int resample_channels;
266 int resample_sample_rate;
267 int reformat_pair;
268 AVAudioConvert *reformat_ctx;
269 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
270 FILE *logfile;
271
272 #if CONFIG_AVFILTER
273 AVFilterContext *output_video_filter;
274 AVFilterContext *input_video_filter;
275 AVFilterBufferRef *picref;
276 char *avfilter;
277 AVFilterGraph *graph;
278 #endif
279
280 int sws_flags;
281 AVDictionary *opts;
282 } OutputStream;
283
284 static OutputStream **output_streams_for_file[MAX_FILES] = { NULL };
285 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
286
287 typedef struct InputStream {
288 int file_index;
289 AVStream *st;
290 int discard; /* true if stream data should be discarded */
291 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
292 AVCodec *dec;
293
294 int64_t start; /* time when read started */
295 int64_t next_pts; /* synthetic pts for cases where pkt.pts
296 is not defined */
297 int64_t pts; /* current pts */
298 PtsCorrectionContext pts_ctx;
299 double ts_scale;
300 int is_start; /* is 1 at the start and after a discontinuity */
301 int showed_multi_packet_warning;
302 int is_past_recording_time;
303 AVDictionary *opts;
304 } InputStream;
305
306 typedef struct InputFile {
307 AVFormatContext *ctx;
308 int eof_reached; /* true if eof reached */
309 int ist_index; /* index of first stream in ist_table */
310 int buffer_size; /* current total buffer size */
311 int64_t ts_offset;
312 } InputFile;
313
314 static InputStream *input_streams = NULL;
315 static int nb_input_streams = 0;
316 static InputFile *input_files = NULL;
317 static int nb_input_files = 0;
318
319 #if CONFIG_AVFILTER
320
321 static int configure_video_filters(InputStream *ist, OutputStream *ost)
322 {
323 AVFilterContext *last_filter, *filter;
324 /** filter graph containing all filters including input & output */
325 AVCodecContext *codec = ost->st->codec;
326 AVCodecContext *icodec = ist->st->codec;
327 FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
328 AVRational sample_aspect_ratio;
329 char args[255];
330 int ret;
331
332 ost->graph = avfilter_graph_alloc();
333
334 if (ist->st->sample_aspect_ratio.num){
335 sample_aspect_ratio = ist->st->sample_aspect_ratio;
336 }else
337 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
338
339 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
340 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
341 sample_aspect_ratio.num, sample_aspect_ratio.den);
342
343 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
344 "src", args, NULL, ost->graph);
345 if (ret < 0)
346 return ret;
347 ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
348 "out", NULL, &ffsink_ctx, ost->graph);
349 if (ret < 0)
350 return ret;
351 last_filter = ost->input_video_filter;
352
353 if (codec->width != icodec->width || codec->height != icodec->height) {
354 snprintf(args, 255, "%d:%d:flags=0x%X",
355 codec->width,
356 codec->height,
357 ost->sws_flags);
358 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
359 NULL, args, NULL, ost->graph)) < 0)
360 return ret;
361 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
362 return ret;
363 last_filter = filter;
364 }
365
366 snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
367 ost->graph->scale_sws_opts = av_strdup(args);
368
369 if (ost->avfilter) {
370 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
371 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
372
373 outputs->name = av_strdup("in");
374 outputs->filter_ctx = last_filter;
375 outputs->pad_idx = 0;
376 outputs->next = NULL;
377
378 inputs->name = av_strdup("out");
379 inputs->filter_ctx = ost->output_video_filter;
380 inputs->pad_idx = 0;
381 inputs->next = NULL;
382
383 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
384 return ret;
385 av_freep(&ost->avfilter);
386 } else {
387 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
388 return ret;
389 }
390
391 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
392 return ret;
393
394 codec->width = ost->output_video_filter->inputs[0]->w;
395 codec->height = ost->output_video_filter->inputs[0]->h;
396 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
397 ost->frame_aspect_ratio ? // overriden by the -aspect cli option
398 av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
399 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
400
401 return 0;
402 }
403 #endif /* CONFIG_AVFILTER */
404
405 static void term_exit(void)
406 {
407 av_log(NULL, AV_LOG_QUIET, "");
408 }
409
410 static volatile int received_sigterm = 0;
411 static volatile int received_nb_signals = 0;
412
413 static void
414 sigterm_handler(int sig)
415 {
416 received_sigterm = sig;
417 received_nb_signals++;
418 term_exit();
419 }
420
421 static void term_init(void)
422 {
423 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
424 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
425 #ifdef SIGXCPU
426 signal(SIGXCPU, sigterm_handler);
427 #endif
428 }
429
430 static int decode_interrupt_cb(void)
431 {
432 return received_nb_signals > 1;
433 }
434
435 static int exit_program(int ret)
436 {
437 int i;
438
439 /* close files */
440 for(i=0;i<nb_output_files;i++) {
441 AVFormatContext *s = output_files[i];
442 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
443 avio_close(s->pb);
444 avformat_free_context(s);
445 av_free(output_streams_for_file[i]);
446 av_dict_free(&output_opts[i]);
447 }
448 for(i=0;i<nb_input_files;i++) {
449 av_close_input_file(input_files[i].ctx);
450 }
451 for (i = 0; i < nb_input_streams; i++)
452 av_dict_free(&input_streams[i].opts);
453
454 av_free(intra_matrix);
455 av_free(inter_matrix);
456
457 if (vstats_file)
458 fclose(vstats_file);
459 av_free(vstats_filename);
460
461 av_free(streamid_map);
462 av_free(meta_data_maps);
463
464 av_freep(&input_streams);
465 av_freep(&input_files);
466
467 uninit_opts();
468 av_free(audio_buf);
469 av_free(audio_out);
470 allocated_audio_buf_size= allocated_audio_out_size= 0;
471 av_free(samples);
472
473 #if CONFIG_AVFILTER
474 avfilter_uninit();
475 #endif
476
477 if (received_sigterm) {
478 fprintf(stderr,
479 "Received signal %d: terminating.\n",
480 (int) received_sigterm);
481 exit (255);
482 }
483
484 exit(ret); /* not all OS-es handle main() return value */
485 return ret;
486 }
487
488 static void assert_avoptions(AVDictionary *m)
489 {
490 AVDictionaryEntry *t;
491 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
492 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
493 exit_program(1);
494 }
495 }
496
497 static void assert_codec_experimental(AVCodecContext *c, int encoder)
498 {
499 const char *codec_string = encoder ? "encoder" : "decoder";
500 AVCodec *codec;
501 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
502 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
503 av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
504 "results.\nAdd '-strict experimental' if you want to use it.\n",
505 codec_string, c->codec->name);
506 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
507 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
508 av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
509 codec_string, codec->name);
510 exit_program(1);
511 }
512 }
513
514 /* similar to ff_dynarray_add() and av_fast_realloc() */
515 static void *grow_array(void *array, int elem_size, int *size, int new_size)
516 {
517 if (new_size >= INT_MAX / elem_size) {
518 fprintf(stderr, "Array too big.\n");
519 exit_program(1);
520 }
521 if (*size < new_size) {
522 uint8_t *tmp = av_realloc(array, new_size*elem_size);
523 if (!tmp) {
524 fprintf(stderr, "Could not alloc buffer.\n");
525 exit_program(1);
526 }
527 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
528 *size = new_size;
529 return tmp;
530 }
531 return array;
532 }
533
534 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
535 {
536 if(codec && codec->sample_fmts){
537 const enum AVSampleFormat *p= codec->sample_fmts;
538 for(; *p!=-1; p++){
539 if(*p == st->codec->sample_fmt)
540 break;
541 }
542 if (*p == -1) {
543 av_log(NULL, AV_LOG_WARNING,
544 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
545 av_get_sample_fmt_name(st->codec->sample_fmt),
546 codec->name,
547 av_get_sample_fmt_name(codec->sample_fmts[0]));
548 st->codec->sample_fmt = codec->sample_fmts[0];
549 }
550 }
551 }
552
553 /**
554 * Update the requested input sample format based on the output sample format.
555 * This is currently only used to request float output from decoders which
556 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
557 * Ideally this will be removed in the future when decoders do not do format
558 * conversion and only output in their native format.
559 */
560 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
561 AVCodecContext *enc)
562 {
563 /* if sample formats match or a decoder sample format has already been
564 requested, just return */
565 if (enc->sample_fmt == dec->sample_fmt ||
566 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
567 return;
568
569 /* if decoder supports more than one output format */
570 if (dec_codec && dec_codec->sample_fmts &&
571 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
572 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
573 const enum AVSampleFormat *p;
574 int min_dec = -1, min_inc = -1;
575
576 /* find a matching sample format in the encoder */
577 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
578 if (*p == enc->sample_fmt) {
579 dec->request_sample_fmt = *p;
580 return;
581 } else if (*p > enc->sample_fmt) {
582 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
583 } else
584 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
585 }
586
587 /* if none match, provide the one that matches quality closest */
588 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
589 enc->sample_fmt - min_dec;
590 }
591 }
592
593 static void choose_sample_rate(AVStream *st, AVCodec *codec)
594 {
595 if(codec && codec->supported_samplerates){
596 const int *p= codec->supported_samplerates;
597 int best=0;
598 int best_dist=INT_MAX;
599 for(; *p; p++){
600 int dist= abs(st->codec->sample_rate - *p);
601 if(dist < best_dist){
602 best_dist= dist;
603 best= *p;
604 }
605 }
606 if(best_dist){
607 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
608 }
609 st->codec->sample_rate= best;
610 }
611 }
612
613 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
614 {
615 if(codec && codec->pix_fmts){
616 const enum PixelFormat *p= codec->pix_fmts;
617 if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
618 if(st->codec->codec_id==CODEC_ID_MJPEG){
619 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
620 }else if(st->codec->codec_id==CODEC_ID_LJPEG){
621 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};
622 }
623 }
624 for(; *p!=-1; p++){
625 if(*p == st->codec->pix_fmt)
626 break;
627 }
628 if (*p == -1) {
629 if(st->codec->pix_fmt != PIX_FMT_NONE)
630 av_log(NULL, AV_LOG_WARNING,
631 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
632 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
633 codec->name,
634 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
635 st->codec->pix_fmt = codec->pix_fmts[0];
636 }
637 }
638 }
639
640 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
641 {
642 const char *codec_string = encoder ? "encoder" : "decoder";
643 AVCodec *codec;
644
645 if(!name)
646 return CODEC_ID_NONE;
647 codec = encoder ?
648 avcodec_find_encoder_by_name(name) :
649 avcodec_find_decoder_by_name(name);
650 if(!codec) {
651 av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
652 exit_program(1);
653 }
654 if(codec->type != type) {
655 av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
656 exit_program(1);
657 }
658 return codec->id;
659 }
660
661 static AVCodec *choose_codec(AVFormatContext *s, AVStream *st, enum AVMediaType type, AVDictionary *codec_names)
662 {
663 AVDictionaryEntry *e = NULL;
664 char *codec_name = NULL;
665 int ret;
666
667 while (e = av_dict_get(codec_names, "", e, AV_DICT_IGNORE_SUFFIX)) {
668 char *p = strchr(e->key, ':');
669
670 if ((ret = check_stream_specifier(s, st, p ? p + 1 : "")) > 0)
671 codec_name = e->value;
672 else if (ret < 0)
673 exit_program(1);
674 }
675
676 if (!codec_name) {
677 if (s->oformat) {
678 st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
679 return avcodec_find_encoder(st->codec->codec_id);
680 }
681 } else if (!strcmp(codec_name, "copy"))
682 st->stream_copy = 1;
683 else {
684 st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
685 return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
686 avcodec_find_decoder_by_name(codec_name);
687 }
688
689 return NULL;
690 }
691
692 static OutputStream *new_output_stream(AVFormatContext *oc, int file_idx, enum AVMediaType type)
693 {
694 OutputStream *ost;
695 AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
696 int idx = oc->nb_streams - 1;
697
698 if (!st) {
699 av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
700 exit_program(1);
701 }
702
703 output_streams_for_file[file_idx] =
704 grow_array(output_streams_for_file[file_idx],
705 sizeof(*output_streams_for_file[file_idx]),
706 &nb_output_streams_for_file[file_idx],
707 oc->nb_streams);
708 ost = output_streams_for_file[file_idx][idx] =
709 av_mallocz(sizeof(OutputStream));
710 if (!ost) {
711 fprintf(stderr, "Could not alloc output stream\n");
712 exit_program(1);
713 }
714 ost->file_index = file_idx;
715 ost->index = idx;
716 ost->st = st;
717 st->codec->codec_type = type;
718 ost->enc = choose_codec(oc, st, type, codec_names);
719 if (ost->enc) {
720 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
721 }
722
723 avcodec_get_context_defaults3(st->codec, ost->enc);
724 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
725
726 ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
727 return ost;
728 }
729
730 static int read_avserver_streams(AVFormatContext *s, const char *filename)
731 {
732 int i, err;
733 AVFormatContext *ic = NULL;
734 int nopts = 0;
735
736 err = avformat_open_input(&ic, filename, NULL, NULL);
737 if (err < 0)
738 return err;
739 /* copy stream format */
740 for(i=0;i<ic->nb_streams;i++) {
741 AVStream *st;
742 OutputStream *ost;
743 AVCodec *codec;
744
745 codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
746 ost = new_output_stream(s, nb_output_files, codec->type);
747 st = ost->st;
748
749 // FIXME: a more elegant solution is needed
750 memcpy(st, ic->streams[i], sizeof(AVStream));
751 st->info = NULL;
752 avcodec_copy_context(st->codec, ic->streams[i]->codec);
753
754 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !st->stream_copy)
755 choose_sample_fmt(st, codec);
756 else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !st->stream_copy)
757 choose_pixel_fmt(st, codec);
758
759 if(st->codec->flags & CODEC_FLAG_BITEXACT)
760 nopts = 1;
761 }
762
763 av_close_input_file(ic);
764 return 0;
765 }
766
767 static double
768 get_sync_ipts(const OutputStream *ost)
769 {
770 const InputStream *ist = ost->sync_ist;
771 return (double)(ist->pts - start_time)/AV_TIME_BASE;
772 }
773
774 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
775 int ret;
776
777 while(bsfc){
778 AVPacket new_pkt= *pkt;
779 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
780 &new_pkt.data, &new_pkt.size,
781 pkt->data, pkt->size,
782 pkt->flags & AV_PKT_FLAG_KEY);
783 if(a>0){
784 av_free_packet(pkt);
785 new_pkt.destruct= av_destruct_packet;
786 } else if(a<0){
787 fprintf(stderr, "%s failed for stream %d, codec %s",
788 bsfc->filter->name, pkt->stream_index,
789 avctx->codec ? avctx->codec->name : "copy");
790 print_error("", a);
791 if (exit_on_error)
792 exit_program(1);
793 }
794 *pkt= new_pkt;
795
796 bsfc= bsfc->next;
797 }
798
799 ret= av_interleaved_write_frame(s, pkt);
800 if(ret < 0){
801 print_error("av_interleaved_write_frame()", ret);
802 exit_program(1);
803 }
804 }
805
806 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
807
808 static void do_audio_out(AVFormatContext *s,
809 OutputStream *ost,
810 InputStream *ist,
811 unsigned char *buf, int size)
812 {
813 uint8_t *buftmp;
814 int64_t audio_out_size, audio_buf_size;
815 int64_t allocated_for_size= size;
816
817 int size_out, frame_bytes, ret, resample_changed;
818 AVCodecContext *enc= ost->st->codec;
819 AVCodecContext *dec= ist->st->codec;
820 int osize = av_get_bytes_per_sample(enc->sample_fmt);
821 int isize = av_get_bytes_per_sample(dec->sample_fmt);
822 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
823
824 need_realloc:
825 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
826 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
827 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
828 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
829 audio_buf_size*= osize*enc->channels;
830
831 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
832 if(coded_bps > 8*osize)
833 audio_out_size= audio_out_size * coded_bps / (8*osize);
834 audio_out_size += FF_MIN_BUFFER_SIZE;
835
836 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
837 fprintf(stderr, "Buffer sizes too large\n");
838 exit_program(1);
839 }
840
841 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
842 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
843 if (!audio_buf || !audio_out){
844 fprintf(stderr, "Out of memory in do_audio_out\n");
845 exit_program(1);
846 }
847
848 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
849 ost->audio_resample = 1;
850
851 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
852 ost->resample_channels != dec->channels ||
853 ost->resample_sample_rate != dec->sample_rate;
854
855 if ((ost->audio_resample && !ost->resample) || resample_changed) {
856 if (resample_changed) {
857 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",
858 ist->file_index, ist->st->index,
859 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
860 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
861 ost->resample_sample_fmt = dec->sample_fmt;
862 ost->resample_channels = dec->channels;
863 ost->resample_sample_rate = dec->sample_rate;
864 if (ost->resample)
865 audio_resample_close(ost->resample);
866 }
867 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
868 if (audio_sync_method <= 1 &&
869 ost->resample_sample_fmt == enc->sample_fmt &&
870 ost->resample_channels == enc->channels &&
871 ost->resample_sample_rate == enc->sample_rate) {
872 ost->resample = NULL;
873 ost->audio_resample = 0;
874 } else if (ost->audio_resample) {
875 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
876 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
877 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
878 enc->sample_rate, dec->sample_rate,
879 enc->sample_fmt, dec->sample_fmt,
880 16, 10, 0, 0.8);
881 if (!ost->resample) {
882 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
883 dec->channels, dec->sample_rate,
884 enc->channels, enc->sample_rate);
885 exit_program(1);
886 }
887 }
888 }
889
890 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
891 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
892 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
893 if (ost->reformat_ctx)
894 av_audio_convert_free(ost->reformat_ctx);
895 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
896 dec->sample_fmt, 1, NULL, 0);
897 if (!ost->reformat_ctx) {
898 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
899 av_get_sample_fmt_name(dec->sample_fmt),
900 av_get_sample_fmt_name(enc->sample_fmt));
901 exit_program(1);
902 }
903 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
904 }
905
906 if(audio_sync_method){
907 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
908 - av_fifo_size(ost->fifo)/(enc->channels * 2);
909 double idelta= delta*dec->sample_rate / enc->sample_rate;
910 int byte_delta= ((int)idelta)*2*dec->channels;
911
912 //FIXME resample delay
913 if(fabs(delta) > 50){
914 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
915 if(byte_delta < 0){
916 byte_delta= FFMAX(byte_delta, -size);
917 size += byte_delta;
918 buf -= byte_delta;
919 if(verbose > 2)
920 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
921 if(!size)
922 return;
923 ist->is_start=0;
924 }else{
925 static uint8_t *input_tmp= NULL;
926 input_tmp= av_realloc(input_tmp, byte_delta + size);
927
928 if(byte_delta > allocated_for_size - size){
929 allocated_for_size= byte_delta + (int64_t)size;
930 goto need_realloc;
931 }
932 ist->is_start=0;
933
934 memset(input_tmp, 0, byte_delta);
935 memcpy(input_tmp + byte_delta, buf, size);
936 buf= input_tmp;
937 size += byte_delta;
938 if(verbose > 2)
939 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
940 }
941 }else if(audio_sync_method>1){
942 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
943 av_assert0(ost->audio_resample);
944 if(verbose > 2)
945 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
946 // 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));
947 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
948 }
949 }
950 }else
951 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
952 - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
953
954 if (ost->audio_resample) {
955 buftmp = audio_buf;
956 size_out = audio_resample(ost->resample,
957 (short *)buftmp, (short *)buf,
958 size / (dec->channels * isize));
959 size_out = size_out * enc->channels * osize;
960 } else {
961 buftmp = buf;
962 size_out = size;
963 }
964
965 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
966 const void *ibuf[6]= {buftmp};
967 void *obuf[6]= {audio_buf};
968 int istride[6]= {isize};
969 int ostride[6]= {osize};
970 int len= size_out/istride[0];
971 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
972 printf("av_audio_convert() failed\n");
973 if (exit_on_error)
974 exit_program(1);
975 return;
976 }
977 buftmp = audio_buf;
978 size_out = len*osize;
979 }
980
981 /* now encode as many frames as possible */
982 if (enc->frame_size > 1) {
983 /* output resampled raw samples */
984 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
985 fprintf(stderr, "av_fifo_realloc2() failed\n");
986 exit_program(1);
987 }
988 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
989
990 frame_bytes = enc->frame_size * osize * enc->channels;
991
992 while (av_fifo_size(ost->fifo) >= frame_bytes) {
993 AVPacket pkt;
994 av_init_packet(&pkt);
995
996 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
997
998 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
999
1000 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
1001 (short *)audio_buf);
1002 if (ret < 0) {
1003 fprintf(stderr, "Audio encoding failed\n");
1004 exit_program(1);
1005 }
1006 audio_size += ret;
1007 pkt.stream_index= ost->index;
1008 pkt.data= audio_out;
1009 pkt.size= ret;
1010 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1011 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1012 pkt.flags |= AV_PKT_FLAG_KEY;
1013 write_frame(s, &pkt, enc, ost->bitstream_filters);
1014
1015 ost->sync_opts += enc->frame_size;
1016 }
1017 } else {
1018 AVPacket pkt;
1019 av_init_packet(&pkt);
1020
1021 ost->sync_opts += size_out / (osize * enc->channels);
1022
1023 /* output a pcm frame */
1024 /* determine the size of the coded buffer */
1025 size_out /= osize;
1026 if (coded_bps)
1027 size_out = size_out*coded_bps/8;
1028
1029 if(size_out > audio_out_size){
1030 fprintf(stderr, "Internal error, buffer size too small\n");
1031 exit_program(1);
1032 }
1033
1034 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
1035 ret = avcodec_encode_audio(enc, audio_out, size_out,
1036 (short *)buftmp);
1037 if (ret < 0) {
1038 fprintf(stderr, "Audio encoding failed\n");
1039 exit_program(1);
1040 }
1041 audio_size += ret;
1042 pkt.stream_index= ost->index;
1043 pkt.data= audio_out;
1044 pkt.size= ret;
1045 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1046 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1047 pkt.flags |= AV_PKT_FLAG_KEY;
1048 write_frame(s, &pkt, enc, ost->bitstream_filters);
1049 }
1050 }
1051
1052 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1053 {
1054 AVCodecContext *dec;
1055 AVPicture *picture2;
1056 AVPicture picture_tmp;
1057 uint8_t *buf = 0;
1058
1059 dec = ist->st->codec;
1060
1061 /* deinterlace : must be done before any resize */
1062 if (do_deinterlace) {
1063 int size;
1064
1065 /* create temporary picture */
1066 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1067 buf = av_malloc(size);
1068 if (!buf)
1069 return;
1070
1071 picture2 = &picture_tmp;
1072 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1073
1074 if(avpicture_deinterlace(picture2, picture,
1075 dec->pix_fmt, dec->width, dec->height) < 0) {
1076 /* if error, do not deinterlace */
1077 fprintf(stderr, "Deinterlacing failed\n");
1078 av_free(buf);
1079 buf = NULL;
1080 picture2 = picture;
1081 }
1082 } else {
1083 picture2 = picture;
1084 }
1085
1086 if (picture != picture2)
1087 *picture = *picture2;
1088 *bufp = buf;
1089 }
1090
1091 /* we begin to correct av delay at this threshold */
1092 #define AV_DELAY_MAX 0.100
1093
1094 static void do_subtitle_out(AVFormatContext *s,
1095 OutputStream *ost,
1096 InputStream *ist,
1097 AVSubtitle *sub,
1098 int64_t pts)
1099 {
1100 static uint8_t *subtitle_out = NULL;
1101 int subtitle_out_max_size = 1024 * 1024;
1102 int subtitle_out_size, nb, i;
1103 AVCodecContext *enc;
1104 AVPacket pkt;
1105
1106 if (pts == AV_NOPTS_VALUE) {
1107 fprintf(stderr, "Subtitle packets must have a pts\n");
1108 if (exit_on_error)
1109 exit_program(1);
1110 return;
1111 }
1112
1113 enc = ost->st->codec;
1114
1115 if (!subtitle_out) {
1116 subtitle_out = av_malloc(subtitle_out_max_size);
1117 }
1118
1119 /* Note: DVB subtitle need one packet to draw them and one other
1120 packet to clear them */
1121 /* XXX: signal it in the codec context ? */
1122 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1123 nb = 2;
1124 else
1125 nb = 1;
1126
1127 for(i = 0; i < nb; i++) {
1128 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1129 // start_display_time is required to be 0
1130 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1131 sub->end_display_time -= sub->start_display_time;
1132 sub->start_display_time = 0;
1133 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1134 subtitle_out_max_size, sub);
1135 if (subtitle_out_size < 0) {
1136 fprintf(stderr, "Subtitle encoding failed\n");
1137 exit_program(1);
1138 }
1139
1140 av_init_packet(&pkt);
1141 pkt.stream_index = ost->index;
1142 pkt.data = subtitle_out;
1143 pkt.size = subtitle_out_size;
1144 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1145 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1146 /* XXX: the pts correction is handled here. Maybe handling
1147 it in the codec would be better */
1148 if (i == 0)
1149 pkt.pts += 90 * sub->start_display_time;
1150 else
1151 pkt.pts += 90 * sub->end_display_time;
1152 }
1153 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1154 }
1155 }
1156
1157 static int bit_buffer_size= 1024*256;
1158 static uint8_t *bit_buffer= NULL;
1159
1160 static void do_video_out(AVFormatContext *s,
1161 OutputStream *ost,
1162 InputStream *ist,
1163 AVFrame *in_picture,
1164 int *frame_size, float quality)
1165 {
1166 int nb_frames, i, ret, resample_changed;
1167 AVFrame *final_picture, *formatted_picture;
1168 AVCodecContext *enc, *dec;
1169 double sync_ipts;
1170
1171 enc = ost->st->codec;
1172 dec = ist->st->codec;
1173
1174 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1175
1176 /* by default, we output a single frame */
1177 nb_frames = 1;
1178
1179 *frame_size = 0;
1180
1181 if(video_sync_method){
1182 double vdelta = sync_ipts - ost->sync_opts;
1183 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1184 if (vdelta < -1.1)
1185 nb_frames = 0;
1186 else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1187 if(vdelta<=-0.6){
1188 nb_frames=0;
1189 }else if(vdelta>0.6)
1190 ost->sync_opts= lrintf(sync_ipts);
1191 }else if (vdelta > 1.1)
1192 nb_frames = lrintf(vdelta);
1193 //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);
1194 if (nb_frames == 0){
1195 ++nb_frames_drop;
1196 if (verbose>2)
1197 fprintf(stderr, "*** drop!\n");
1198 }else if (nb_frames > 1) {
1199 nb_frames_dup += nb_frames - 1;
1200 if (verbose>2)
1201 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1202 }
1203 }else
1204 ost->sync_opts= lrintf(sync_ipts);
1205
1206 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1207 if (nb_frames <= 0)
1208 return;
1209
1210 formatted_picture = in_picture;
1211 final_picture = formatted_picture;
1212
1213 resample_changed = ost->resample_width != dec->width ||
1214 ost->resample_height != dec->height ||
1215 ost->resample_pix_fmt != dec->pix_fmt;
1216
1217 if (resample_changed) {
1218 av_log(NULL, AV_LOG_INFO,
1219 "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1220 ist->file_index, ist->st->index,
1221 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1222 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt));
1223 if(!ost->video_resample)
1224 ost->video_resample = 1;
1225 }
1226
1227 #if !CONFIG_AVFILTER
1228 if (ost->video_resample) {
1229 final_picture = &ost->pict_tmp;
1230 if (resample_changed) {
1231 /* initialize a new scaler context */
1232 sws_freeContext(ost->img_resample_ctx);
1233 ost->img_resample_ctx = sws_getContext(
1234 ist->st->codec->width,
1235 ist->st->codec->height,
1236 ist->st->codec->pix_fmt,
1237 ost->st->codec->width,
1238 ost->st->codec->height,
1239 ost->st->codec->pix_fmt,
1240 ost->sws_flags, NULL, NULL, NULL);
1241 if (ost->img_resample_ctx == NULL) {
1242 fprintf(stderr, "Cannot get resampling context\n");
1243 exit_program(1);
1244 }
1245 }
1246 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1247 0, ost->resample_height, final_picture->data, final_picture->linesize);
1248 }
1249 #else
1250 if (resample_changed) {
1251 avfilter_graph_free(&ost->graph);
1252 if (configure_video_filters(ist, ost)) {
1253 fprintf(stderr, "Error reinitialising filters!\n");
1254 exit_program(1);
1255 }
1256 }
1257 #endif
1258 if (resample_changed) {
1259 ost->resample_width = dec->width;
1260 ost->resample_height = dec->height;
1261 ost->resample_pix_fmt = dec->pix_fmt;
1262 }
1263
1264 /* duplicates frame if needed */
1265 for(i=0;i<nb_frames;i++) {
1266 AVPacket pkt;
1267 av_init_packet(&pkt);
1268 pkt.stream_index= ost->index;
1269
1270 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1271 /* raw pictures are written as AVPicture structure to
1272 avoid any copies. We support temorarily the older
1273 method. */
1274 AVFrame* old_frame = enc->coded_frame;
1275 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1276 pkt.data= (uint8_t *)final_picture;
1277 pkt.size= sizeof(AVPicture);
1278 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1279 pkt.flags |= AV_PKT_FLAG_KEY;
1280
1281 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1282 enc->coded_frame = old_frame;
1283 } else {
1284 AVFrame big_picture;
1285
1286 big_picture= *final_picture;
1287 /* better than nothing: use input picture interlaced
1288 settings */
1289 big_picture.interlaced_frame = in_picture->interlaced_frame;
1290 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1291 if(top_field_first == -1)
1292 big_picture.top_field_first = in_picture->top_field_first;
1293 else
1294 big_picture.top_field_first = top_field_first;
1295 }
1296
1297 /* handles same_quant here. This is not correct because it may
1298 not be a global option */
1299 big_picture.quality = quality;
1300 if(!me_threshold)
1301 big_picture.pict_type = 0;
1302 // big_picture.pts = AV_NOPTS_VALUE;
1303 big_picture.pts= ost->sync_opts;
1304 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1305 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1306 if (ost->forced_kf_index < ost->forced_kf_count &&
1307 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1308 big_picture.pict_type = AV_PICTURE_TYPE_I;
1309 ost->forced_kf_index++;
1310 }
1311 ret = avcodec_encode_video(enc,
1312 bit_buffer, bit_buffer_size,
1313 &big_picture);
1314 if (ret < 0) {
1315 fprintf(stderr, "Video encoding failed\n");
1316 exit_program(1);
1317 }
1318
1319 if(ret>0){
1320 pkt.data= bit_buffer;
1321 pkt.size= ret;
1322 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1323 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1324 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1325 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1326 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1327
1328 if(enc->coded_frame->key_frame)
1329 pkt.flags |= AV_PKT_FLAG_KEY;
1330 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1331 *frame_size = ret;
1332 video_size += ret;
1333 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1334 // enc->frame_number-1, ret, enc->pict_type);
1335 /* if two pass, output log */
1336 if (ost->logfile && enc->stats_out) {
1337 fprintf(ost->logfile, "%s", enc->stats_out);
1338 }
1339 }
1340 }
1341 ost->sync_opts++;
1342 ost->frame_number++;
1343 }
1344 }
1345
1346 static double psnr(double d){
1347 return -10.0*log(d)/log(10.0);
1348 }
1349
1350 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1351 int frame_size)
1352 {
1353 AVCodecContext *enc;
1354 int frame_number;
1355 double ti1, bitrate, avg_bitrate;
1356
1357 /* this is executed just the first time do_video_stats is called */
1358 if (!vstats_file) {
1359 vstats_file = fopen(vstats_filename, "w");
1360 if (!vstats_file) {
1361 perror("fopen");
1362 exit_program(1);
1363 }
1364 }
1365
1366 enc = ost->st->codec;
1367 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1368 frame_number = ost->frame_number;
1369 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1370 if (enc->flags&CODEC_FLAG_PSNR)
1371 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1372
1373 fprintf(vstats_file,"f_size= %6d ", frame_size);
1374 /* compute pts value */
1375 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1376 if (ti1 < 0.01)
1377 ti1 = 0.01;
1378
1379 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1380 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1381 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1382 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1383 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1384 }
1385 }
1386
1387 static void print_report(AVFormatContext **output_files,
1388 OutputStream **ost_table, int nb_ostreams,
1389 int is_last_report)
1390 {
1391 char buf[1024];
1392 OutputStream *ost;
1393 AVFormatContext *oc;
1394 int64_t total_size;
1395 AVCodecContext *enc;
1396 int frame_number, vid, i;
1397 double bitrate, ti1, pts;
1398 static int64_t last_time = -1;
1399 static int qp_histogram[52];
1400
1401 if (!is_last_report) {
1402 int64_t cur_time;
1403 /* display the report every 0.5 seconds */
1404 cur_time = av_gettime();
1405 if (last_time == -1) {
1406 last_time = cur_time;
1407 return;
1408 }
1409 if ((cur_time - last_time) < 500000)
1410 return;
1411 last_time = cur_time;
1412 }
1413
1414
1415 oc = output_files[0];
1416
1417 total_size = avio_size(oc->pb);
1418 if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1419 total_size= avio_tell(oc->pb);
1420
1421 buf[0] = '\0';
1422 ti1 = 1e10;
1423 vid = 0;
1424 for(i=0;i<nb_ostreams;i++) {
1425 float q = -1;
1426 ost = ost_table[i];
1427 enc = ost->st->codec;
1428 if (!ost->st->stream_copy && enc->coded_frame)
1429 q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1430 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1431 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1432 }
1433 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1434 float t = (av_gettime()-timer_start) / 1000000.0;
1435
1436 frame_number = ost->frame_number;
1437 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1438 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1439 if(is_last_report)
1440 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1441 if(qp_hist){
1442 int j;
1443 int qp = lrintf(q);
1444 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1445 qp_histogram[qp]++;
1446 for(j=0; j<32; j++)
1447 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1448 }
1449 if (enc->flags&CODEC_FLAG_PSNR){
1450 int j;
1451 double error, error_sum=0;
1452 double scale, scale_sum=0;
1453 char type[3]= {'Y','U','V'};
1454 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1455 for(j=0; j<3; j++){
1456 if(is_last_report){
1457 error= enc->error[j];
1458 scale= enc->width*enc->height*255.0*255.0*frame_number;
1459 }else{
1460 error= enc->coded_frame->error[j];
1461 scale= enc->width*enc->height*255.0*255.0;
1462 }
1463 if(j) scale/=4;
1464 error_sum += error;
1465 scale_sum += scale;
1466 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1467 }
1468 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1469 }
1470 vid = 1;
1471 }
1472 /* compute min output value */
1473 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1474 if ((pts < ti1) && (pts > 0))
1475 ti1 = pts;
1476 }
1477 if (ti1 < 0.01)
1478 ti1 = 0.01;
1479
1480 if (verbose > 0 || is_last_report) {
1481 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1482
1483 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1484 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1485 (double)total_size / 1024, ti1, bitrate);
1486
1487 if (nb_frames_dup || nb_frames_drop)
1488 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1489 nb_frames_dup, nb_frames_drop);
1490
1491 if (verbose >= 0)
1492 fprintf(stderr, "%s \r", buf);
1493
1494 fflush(stderr);
1495 }
1496
1497 if (is_last_report && verbose >= 0){
1498 int64_t raw= audio_size + video_size + extra_size;
1499 fprintf(stderr, "\n");
1500 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1501 video_size/1024.0,
1502 audio_size/1024.0,
1503 extra_size/1024.0,
1504 100.0*(total_size - raw)/raw
1505 );
1506 }
1507 }
1508
1509 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1510 {
1511 int fill_char = 0x00;
1512 if (sample_fmt == AV_SAMPLE_FMT_U8)
1513 fill_char = 0x80;
1514 memset(buf, fill_char, size);
1515 }
1516
1517 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1518 static int output_packet(InputStream *ist, int ist_index,
1519 OutputStream **ost_table, int nb_ostreams,
1520 const AVPacket *pkt)
1521 {
1522 AVFormatContext *os;
1523 OutputStream *ost;
1524 int ret, i;
1525 int got_output;
1526 AVFrame picture;
1527 void *buffer_to_free = NULL;
1528 static unsigned int samples_size= 0;
1529 AVSubtitle subtitle, *subtitle_to_free;
1530 int64_t pkt_pts = AV_NOPTS_VALUE;
1531 #if CONFIG_AVFILTER
1532 int frame_available;
1533 #endif
1534 float quality;
1535
1536 AVPacket avpkt;
1537 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1538
1539 if(ist->next_pts == AV_NOPTS_VALUE)
1540 ist->next_pts= ist->pts;
1541
1542 if (pkt == NULL) {
1543 /* EOF handling */
1544 av_init_packet(&avpkt);
1545 avpkt.data = NULL;
1546 avpkt.size = 0;
1547 goto handle_eof;
1548 } else {
1549 avpkt = *pkt;
1550 }
1551
1552 if(pkt->dts != AV_NOPTS_VALUE)
1553 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1554 if(pkt->pts != AV_NOPTS_VALUE)
1555 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1556
1557 //while we have more to decode or while the decoder did output something on EOF
1558 while (avpkt.size > 0 || (!pkt && got_output)) {
1559 uint8_t *data_buf, *decoded_data_buf;
1560 int data_size, decoded_data_size;
1561 handle_eof:
1562 ist->pts= ist->next_pts;
1563
1564 if(avpkt.size && avpkt.size != pkt->size &&
1565 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1566 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1567 ist->showed_multi_packet_warning=1;
1568 }
1569
1570 /* decode the packet if needed */
1571 decoded_data_buf = NULL; /* fail safe */
1572 decoded_data_size= 0;
1573 data_buf = avpkt.data;
1574 data_size = avpkt.size;
1575 subtitle_to_free = NULL;
1576 if (ist->decoding_needed) {
1577 switch(ist->st->codec->codec_type) {
1578 case AVMEDIA_TYPE_AUDIO:{
1579 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1580 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1581 av_free(samples);
1582 samples= av_malloc(samples_size);
1583 }
1584 decoded_data_size= samples_size;
1585 /* XXX: could avoid copy if PCM 16 bits with same
1586 endianness as CPU */
1587 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1588 &avpkt);
1589 if (ret < 0)
1590 return ret;
1591 avpkt.data += ret;
1592 avpkt.size -= ret;
1593 data_size = ret;
1594 got_output = decoded_data_size > 0;
1595 /* Some bug in mpeg audio decoder gives */
1596 /* decoded_data_size < 0, it seems they are overflows */
1597 if (!got_output) {
1598 /* no audio frame */
1599 continue;
1600 }
1601 decoded_data_buf = (uint8_t *)samples;
1602 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1603 (ist->st->codec->sample_rate * ist->st->codec->channels);
1604 break;}
1605 case AVMEDIA_TYPE_VIDEO:
1606 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1607 /* XXX: allocate picture correctly */
1608 avcodec_get_frame_defaults(&picture);
1609 avpkt.pts = pkt_pts;
1610 avpkt.dts = ist->pts;
1611 pkt_pts = AV_NOPTS_VALUE;
1612
1613 ret = avcodec_decode_video2(ist->st->codec,
1614 &picture, &got_output, &avpkt);
1615 quality = same_quant ? picture.quality : 0;
1616 if (ret < 0)
1617 return ret;
1618 if (!got_output) {
1619 /* no picture yet */
1620 goto discard_packet;
1621 }
1622 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1623 if (ist->st->codec->time_base.num != 0) {
1624 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1625 ist->next_pts += ((int64_t)AV_TIME_BASE *
1626 ist->st->codec->time_base.num * ticks) /
1627 ist->st->codec->time_base.den;
1628 }
1629 avpkt.size = 0;
1630 buffer_to_free = NULL;
1631 pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1632 break;
1633 case AVMEDIA_TYPE_SUBTITLE:
1634 ret = avcodec_decode_subtitle2(ist->st->codec,
1635 &subtitle, &got_output, &avpkt);
1636 if (ret < 0)
1637 return ret;
1638 if (!got_output) {
1639 goto discard_packet;
1640 }
1641 subtitle_to_free = &subtitle;
1642 avpkt.size = 0;
1643 break;
1644 default:
1645 return -1;
1646 }
1647 } else {
1648 switch(ist->st->codec->codec_type) {
1649 case AVMEDIA_TYPE_AUDIO:
1650 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1651 ist->st->codec->sample_rate;
1652 break;
1653 case AVMEDIA_TYPE_VIDEO:
1654 if (ist->st->codec->time_base.num != 0) {
1655 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1656 ist->next_pts += ((int64_t)AV_TIME_BASE *
1657 ist->st->codec->time_base.num * ticks) /
1658 ist->st->codec->time_base.den;
1659 }
1660 break;
1661 }
1662 ret = avpkt.size;
1663 avpkt.size = 0;
1664 }
1665
1666 #if CONFIG_AVFILTER
1667 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1668 for (i = 0; i < nb_ostreams; i++) {
1669 ost = ost_table[i];
1670 if (ost->input_video_filter && ost->source_index == ist_index) {
1671 AVRational sar;
1672 if (ist->st->sample_aspect_ratio.num)
1673 sar = ist->st->sample_aspect_ratio;
1674 else
1675 sar = ist->st->codec->sample_aspect_ratio;
1676 // add it to be filtered
1677 av_vsrc_buffer_add_frame(ost->input_video_filter, &picture,
1678 ist->pts,
1679 sar);
1680 }
1681 }
1682 }
1683 #endif
1684
1685 // preprocess audio (volume)
1686 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1687 if (audio_volume != 256) {
1688 short *volp;
1689 volp = samples;
1690 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1691 int v = ((*volp) * audio_volume + 128) >> 8;
1692 if (v < -32768) v = -32768;
1693 if (v > 32767) v = 32767;
1694 *volp++ = v;
1695 }
1696 }
1697 }
1698
1699 /* frame rate emulation */
1700 if (rate_emu) {
1701 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1702 int64_t now = av_gettime() - ist->start;
1703 if (pts > now)
1704 usleep(pts - now);
1705 }
1706 /* if output time reached then transcode raw format,
1707 encode packets and output them */
1708 if (start_time == 0 || ist->pts >= start_time)
1709 for(i=0;i<nb_ostreams;i++) {
1710 int frame_size;
1711
1712 ost = ost_table[i];
1713 if (ost->source_index == ist_index) {
1714 #if CONFIG_AVFILTER
1715 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1716 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1717 while (frame_available) {
1718 AVRational ist_pts_tb;
1719 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1720 get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1721 if (ost->picref)
1722 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1723 #endif
1724 os = output_files[ost->file_index];
1725
1726 /* set the input output pts pairs */
1727 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1728
1729 if (ost->encoding_needed) {
1730 av_assert0(ist->decoding_needed);
1731 switch(ost->st->codec->codec_type) {
1732 case AVMEDIA_TYPE_AUDIO:
1733 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1734 break;
1735 case AVMEDIA_TYPE_VIDEO:
1736 #if CONFIG_AVFILTER
1737 if (ost->picref->video && !ost->frame_aspect_ratio)
1738 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1739 #endif
1740 do_video_out(os, ost, ist, &picture, &frame_size,
1741 same_quant ? quality : ost->st->codec->global_quality);
1742 if (vstats_filename && frame_size)
1743 do_video_stats(os, ost, frame_size);
1744 break;
1745 case AVMEDIA_TYPE_SUBTITLE:
1746 do_subtitle_out(os, ost, ist, &subtitle,
1747 pkt->pts);
1748 break;
1749 default:
1750 abort();
1751 }
1752 } else {
1753 AVFrame avframe; //FIXME/XXX remove this
1754 AVPacket opkt;
1755 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1756
1757 av_init_packet(&opkt);
1758
1759 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1760 #if !CONFIG_AVFILTER
1761 continue;
1762 #else
1763 goto cont;
1764 #endif
1765
1766 /* no reencoding needed : output the packet directly */
1767 /* force the input stream PTS */
1768
1769 avcodec_get_frame_defaults(&avframe);
1770 ost->st->codec->coded_frame= &avframe;
1771 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1772
1773 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1774 audio_size += data_size;
1775 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1776 video_size += data_size;
1777 ost->sync_opts++;
1778 }
1779
1780 opkt.stream_index= ost->index;
1781 if(pkt->pts != AV_NOPTS_VALUE)
1782 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1783 else
1784 opkt.pts= AV_NOPTS_VALUE;
1785
1786 if (pkt->dts == AV_NOPTS_VALUE)
1787 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1788 else
1789 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1790 opkt.dts -= ost_tb_start_time;
1791
1792 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1793 opkt.flags= pkt->flags;
1794
1795 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1796 if( ost->st->codec->codec_id != CODEC_ID_H264
1797 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1798 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1799 ) {
1800 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1801 opkt.destruct= av_destruct_packet;
1802 } else {
1803 opkt.data = data_buf;
1804 opkt.size = data_size;
1805 }
1806
1807 write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1808 ost->st->codec->frame_number++;
1809 ost->frame_number++;
1810 av_free_packet(&opkt);
1811 }
1812 #if CONFIG_AVFILTER
1813 cont:
1814 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1815 ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1816 if (ost->picref)
1817 avfilter_unref_buffer(ost->picref);
1818 }
1819 #endif
1820 }
1821 }
1822
1823 av_free(buffer_to_free);
1824 /* XXX: allocate the subtitles in the codec ? */
1825 if (subtitle_to_free) {
1826 avsubtitle_free(subtitle_to_free);
1827 subtitle_to_free = NULL;
1828 }
1829 }
1830 discard_packet:
1831 if (pkt == NULL) {
1832 /* EOF handling */
1833
1834 for(i=0;i<nb_ostreams;i++) {
1835 ost = ost_table[i];
1836 if (ost->source_index == ist_index) {
1837 AVCodecContext *enc= ost->st->codec;
1838 os = output_files[ost->file_index];
1839
1840 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1841 continue;
1842 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1843 continue;
1844
1845 if (ost->encoding_needed) {
1846 for(;;) {
1847 AVPacket pkt;
1848 int fifo_bytes;
1849 av_init_packet(&pkt);
1850 pkt.stream_index= ost->index;
1851
1852 switch(ost->st->codec->codec_type) {
1853 case AVMEDIA_TYPE_AUDIO:
1854 fifo_bytes = av_fifo_size(ost->fifo);
1855 ret = 0;
1856 /* encode any samples remaining in fifo */
1857 if (fifo_bytes > 0) {
1858 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1859 int fs_tmp = enc->frame_size;
1860
1861 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1862 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1863 enc->frame_size = fifo_bytes / (osize * enc->channels);
1864 } else { /* pad */
1865 int frame_bytes = enc->frame_size*osize*enc->channels;
1866 if (allocated_audio_buf_size < frame_bytes)
1867 exit_program(1);
1868 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1869 }
1870
1871 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1872 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1873 ost->st->time_base.num, enc->sample_rate);
1874 enc->frame_size = fs_tmp;
1875 }
1876 if(ret <= 0) {
1877 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1878 }
1879 if (ret < 0) {
1880 fprintf(stderr, "Audio encoding failed\n");
1881 exit_program(1);
1882 }
1883 audio_size += ret;
1884 pkt.flags |= AV_PKT_FLAG_KEY;
1885 break;
1886 case AVMEDIA_TYPE_VIDEO:
1887 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1888 if (ret < 0) {
1889 fprintf(stderr, "Video encoding failed\n");
1890 exit_program(1);
1891 }
1892 video_size += ret;
1893 if(enc->coded_frame && enc->coded_frame->key_frame)
1894 pkt.flags |= AV_PKT_FLAG_KEY;
1895 if (ost->logfile && enc->stats_out) {
1896 fprintf(ost->logfile, "%s", enc->stats_out);
1897 }
1898 break;
1899 default:
1900 ret=-1;
1901 }
1902
1903 if(ret<=0)
1904 break;
1905 pkt.data= bit_buffer;
1906 pkt.size= ret;
1907 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1908 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1909 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1910 }
1911 }
1912 }
1913 }
1914 }
1915
1916 return 0;
1917 }
1918
1919 static void print_sdp(AVFormatContext **avc, int n)
1920 {
1921 char sdp[2048];
1922
1923 av_sdp_create(avc, n, sdp, sizeof(sdp));
1924 printf("SDP:\n%s\n", sdp);
1925 fflush(stdout);
1926 }
1927
1928 static int copy_chapters(int infile, int outfile)
1929 {
1930 AVFormatContext *is = input_files[infile].ctx;
1931 AVFormatContext *os = output_files[outfile];
1932 int i;
1933
1934 for (i = 0; i < is->nb_chapters; i++) {
1935 AVChapter *in_ch = is->chapters[i], *out_ch;
1936 int64_t ts_off = av_rescale_q(start_time - input_files[infile].ts_offset,
1937 AV_TIME_BASE_Q, in_ch->time_base);
1938 int64_t rt = (recording_time == INT64_MAX) ? INT64_MAX :
1939 av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1940
1941
1942 if (in_ch->end < ts_off)
1943 continue;
1944 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1945 break;
1946
1947 out_ch = av_mallocz(sizeof(AVChapter));
1948 if (!out_ch)
1949 return AVERROR(ENOMEM);
1950
1951 out_ch->id = in_ch->id;
1952 out_ch->time_base = in_ch->time_base;
1953 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1954 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1955
1956 if (metadata_chapters_autocopy)
1957 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1958
1959 os->nb_chapters++;
1960 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1961 if (!os->chapters)
1962 return AVERROR(ENOMEM);
1963 os->chapters[os->nb_chapters - 1] = out_ch;
1964 }
1965 return 0;
1966 }
1967
1968 /*
1969 * The following code is the main loop of the file converter
1970 */
1971 static int transcode(AVFormatContext **output_files,
1972 int nb_output_files,
1973 InputFile *input_files,
1974 int nb_input_files)
1975 {
1976 int ret = 0, i, j, k, n, nb_ostreams = 0;
1977 AVFormatContext *is, *os;
1978 AVCodecContext *codec, *icodec;
1979 OutputStream *ost, **ost_table = NULL;
1980 InputStream *ist;
1981 char error[1024];
1982 int want_sdp = 1;
1983 uint8_t no_packet[MAX_FILES]={0};
1984 int no_packet_count=0;
1985
1986 if (rate_emu)
1987 for (i = 0; i < nb_input_streams; i++)
1988 input_streams[i].start = av_gettime();
1989
1990 /* output stream init */
1991 nb_ostreams = 0;
1992 for(i=0;i<nb_output_files;i++) {
1993 os = output_files[i];
1994 if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1995 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1996 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1997 ret = AVERROR(EINVAL);
1998 goto fail;
1999 }
2000 nb_ostreams += os->nb_streams;
2001 }
2002
2003 ost_table = av_mallocz(sizeof(OutputStream *) * nb_ostreams);
2004 if (!ost_table)
2005 goto fail;
2006 n = 0;
2007 for(k=0;k<nb_output_files;k++) {
2008 os = output_files[k];
2009 for (i = 0; i < os->nb_streams; i++, n++)
2010 ost_table[n] = output_streams_for_file[k][i];
2011 }
2012
2013 /* for each output stream, we compute the right encoding parameters */
2014 for(i=0;i<nb_ostreams;i++) {
2015 ost = ost_table[i];
2016 os = output_files[ost->file_index];
2017 ist = &input_streams[ost->source_index];
2018
2019 codec = ost->st->codec;
2020 icodec = ist->st->codec;
2021
2022 ost->st->disposition = ist->st->disposition;
2023 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2024 codec->chroma_sample_location = icodec->chroma_sample_location;
2025
2026 if (ost->st->stream_copy) {
2027 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2028
2029 if (extra_size > INT_MAX)
2030 goto fail;
2031
2032 /* if stream_copy is selected, no need to decode or encode */
2033 codec->codec_id = icodec->codec_id;
2034 codec->codec_type = icodec->codec_type;
2035
2036 if(!codec->codec_tag){
2037 if( !os->oformat->codec_tag
2038 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2039 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2040 codec->codec_tag = icodec->codec_tag;
2041 }
2042
2043 codec->bit_rate = icodec->bit_rate;
2044 codec->rc_max_rate = icodec->rc_max_rate;
2045 codec->rc_buffer_size = icodec->rc_buffer_size;
2046 codec->extradata= av_mallocz(extra_size);
2047 if (!codec->extradata)
2048 goto fail;
2049 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2050 codec->extradata_size= icodec->extradata_size;
2051 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){
2052 codec->time_base = icodec->time_base;
2053 codec->time_base.num *= icodec->ticks_per_frame;
2054 av_reduce(&codec->time_base.num, &codec->time_base.den,
2055 codec->time_base.num, codec->time_base.den, INT_MAX);
2056 }else
2057 codec->time_base = ist->st->time_base;
2058 switch(codec->codec_type) {
2059 case AVMEDIA_TYPE_AUDIO:
2060 if(audio_volume != 256) {
2061 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2062 exit_program(1);
2063 }
2064 codec->channel_layout = icodec->channel_layout;
2065 codec->sample_rate = icodec->sample_rate;
2066 codec->channels = icodec->channels;
2067 codec->frame_size = icodec->frame_size;
2068 codec->audio_service_type = icodec->audio_service_type;
2069 codec->block_align= icodec->block_align;
2070 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2071 codec->block_align= 0;
2072 if(codec->codec_id == CODEC_ID_AC3)
2073 codec->block_align= 0;
2074 break;
2075 case AVMEDIA_TYPE_VIDEO:
2076 codec->pix_fmt = icodec->pix_fmt;
2077 codec->width = icodec->width;
2078 codec->height = icodec->height;
2079 codec->has_b_frames = icodec->has_b_frames;
2080 if (!codec->sample_aspect_ratio.num) {
2081 codec->sample_aspect_ratio =
2082 ost->st->sample_aspect_ratio =
2083 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2084 ist->st->codec->sample_aspect_ratio.num ?
2085 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2086 }
2087 break;
2088 case AVMEDIA_TYPE_SUBTITLE:
2089 codec->width = icodec->width;
2090 codec->height = icodec->height;
2091 break;
2092 case AVMEDIA_TYPE_DATA:
2093 break;
2094 default:
2095 abort();
2096 }
2097 } else {
2098 if (!ost->enc)
2099 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2100 switch(codec->codec_type) {
2101 case AVMEDIA_TYPE_AUDIO:
2102 ost->fifo= av_fifo_alloc(1024);
2103 if(!ost->fifo)
2104 goto fail;
2105 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2106 if (!codec->sample_rate) {
2107 codec->sample_rate = icodec->sample_rate;
2108 if (icodec->lowres)
2109 codec->sample_rate >>= icodec->lowres;
2110 }
2111 choose_sample_rate(ost->st, ost->enc);
2112 codec->time_base = (AVRational){1, codec->sample_rate};
2113 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2114 codec->sample_fmt = icodec->sample_fmt;
2115 choose_sample_fmt(ost->st, ost->enc);
2116 if (!codec->channels)
2117 codec->channels = icodec->channels;
2118 codec->channel_layout = icodec->channel_layout;
2119 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2120 codec->channel_layout = 0;
2121 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2122 icodec->request_channels = codec->channels;
2123 ist->decoding_needed = 1;
2124 ost->encoding_needed = 1;
2125 ost->resample_sample_fmt = icodec->sample_fmt;
2126 ost->resample_sample_rate = icodec->sample_rate;
2127 ost->resample_channels = icodec->channels;
2128 break;
2129 case AVMEDIA_TYPE_VIDEO:
2130 if (codec->pix_fmt == PIX_FMT_NONE)
2131 codec->pix_fmt = icodec->pix_fmt;
2132 choose_pixel_fmt(ost->st, ost->enc);
2133
2134 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2135 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2136 exit_program(1);
2137 }
2138
2139 if (!codec->width || !codec->height) {
2140 codec->width = icodec->width;
2141 codec->height = icodec->height;
2142 }
2143
2144 ost->video_resample = codec->width != icodec->width ||
2145 codec->height != icodec->height ||
2146 codec->pix_fmt != icodec->pix_fmt;
2147 if (ost->video_resample) {
2148 #if !CONFIG_AVFILTER
2149 avcodec_get_frame_defaults(&ost->pict_tmp);
2150 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2151 codec->width, codec->height)) {
2152 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2153 exit_program(1);
2154 }
2155 ost->img_resample_ctx = sws_getContext(
2156 icodec->width,
2157 icodec->height,
2158 icodec->pix_fmt,
2159 codec->width,
2160 codec->height,
2161 codec->pix_fmt,
2162 ost->sws_flags, NULL, NULL, NULL);
2163 if (ost->img_resample_ctx == NULL) {
2164 fprintf(stderr, "Cannot get resampling context\n");
2165 exit_program(1);
2166 }
2167 #endif
2168 codec->bits_per_raw_sample= 0;
2169 }
2170
2171 ost->resample_height = icodec->height;
2172 ost->resample_width = icodec->width;
2173 ost->resample_pix_fmt= icodec->pix_fmt;
2174 ost->encoding_needed = 1;
2175 ist->decoding_needed = 1;
2176
2177 if (!ost->frame_rate.num)
2178 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2179 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2180 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2181 ost->frame_rate = ost->enc->supported_framerates[idx];
2182 }
2183 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2184
2185 #if CONFIG_AVFILTER
2186 if (configure_video_filters(ist, ost)) {
2187 fprintf(stderr, "Error opening filters!\n");
2188 exit(1);
2189 }
2190 #endif
2191 break;
2192 case AVMEDIA_TYPE_SUBTITLE:
2193 ost->encoding_needed = 1;
2194 ist->decoding_needed = 1;
2195 break;
2196 default:
2197 abort();
2198 break;
2199 }
2200 /* two pass mode */
2201 if (ost->encoding_needed &&
2202 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2203 char logfilename[1024];
2204 FILE *f;
2205
2206 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2207 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2208 i);
2209 if (codec->flags & CODEC_FLAG_PASS1) {
2210 f = fopen(logfilename, "wb");
2211 if (!f) {
2212 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2213 exit_program(1);
2214 }
2215 ost->logfile = f;
2216 } else {
2217 char *logbuffer;
2218 size_t logbuffer_size;
2219 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2220 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2221 exit_program(1);
2222 }
2223 codec->stats_in = logbuffer;
2224 }
2225 }
2226 }
2227 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2228 int size= codec->width * codec->height;
2229 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2230 }
2231 }
2232
2233 if (!bit_buffer)
2234 bit_buffer = av_malloc(bit_buffer_size);
2235 if (!bit_buffer) {
2236 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2237 bit_buffer_size);
2238 ret = AVERROR(ENOMEM);
2239 goto fail;
2240 }
2241
2242 /* open each encoder */
2243 for(i=0;i<nb_ostreams;i++) {
2244 ost = ost_table[i];
2245 if (ost->encoding_needed) {
2246 AVCodec *codec = ost->enc;
2247 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2248 if (!codec) {
2249 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2250 ost->st->codec->codec_id, ost->file_index, ost->index);
2251 ret = AVERROR(EINVAL);
2252 goto dump_format;
2253 }
2254 if (dec->subtitle_header) {
2255 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2256 if (!ost->st->codec->subtitle_header) {
2257 ret = AVERROR(ENOMEM);
2258 goto dump_format;
2259 }
2260 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2261 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2262 }
2263 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2264 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2265 ost->file_index, ost->index);
2266 ret = AVERROR(EINVAL);
2267 goto dump_format;
2268 }
2269 assert_codec_experimental(ost->st->codec, 1);
2270 assert_avoptions(ost->opts);
2271 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2272 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2273 "It takes bits/s as argument, not kbits/s\n");
2274 extra_size += ost->st->codec->extradata_size;
2275 }
2276 }
2277
2278 /* open each decoder */
2279 for (i = 0; i < nb_input_streams; i++) {
2280 ist = &input_streams[i];
2281 if (ist->decoding_needed) {
2282 AVCodec *codec = ist->dec;
2283 if (!codec)
2284 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2285 if (!codec) {
2286 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2287 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2288 ret = AVERROR(EINVAL);
2289 goto dump_format;
2290 }
2291
2292 /* update requested sample format for the decoder based on the
2293 corresponding encoder sample format */
2294 for (j = 0; j < nb_ostreams; j++) {
2295 ost = ost_table[j];
2296 if (ost->source_index == i) {
2297 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2298 break;
2299 }
2300 }
2301
2302 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2303 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2304 ist->file_index, ist->st->index);
2305 ret = AVERROR(EINVAL);
2306 goto dump_format;
2307 }
2308 assert_codec_experimental(ist->st->codec, 0);
2309 assert_avoptions(ost->opts);
2310 }
2311 }
2312
2313 /* init pts */
2314 for (i = 0; i < nb_input_streams; i++) {
2315 AVStream *st;
2316 ist = &input_streams[i];
2317 st= ist->st;
2318 ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2319 ist->next_pts = AV_NOPTS_VALUE;
2320 init_pts_correction(&ist->pts_ctx);
2321 ist->is_start = 1;
2322 }
2323
2324 /* open files and write file headers */
2325 for(i=0;i<nb_output_files;i++) {
2326 os = output_files[i];
2327 if (avformat_write_header(os, &output_opts[i]) < 0) {
2328 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2329 ret = AVERROR(EINVAL);
2330 goto dump_format;
2331 }
2332 assert_avoptions(output_opts[i]);
2333 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2334 want_sdp = 0;
2335 }
2336 }
2337
2338 dump_format:
2339 /* dump the file output parameters - cannot be done before in case
2340 of stream copy */
2341 for(i=0;i<nb_output_files;i++) {
2342 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2343 }
2344
2345 /* dump the stream mapping */
2346 if (verbose >= 0) {
2347 fprintf(stderr, "Stream mapping:\n");
2348 for(i=0;i<nb_ostreams;i++) {
2349 ost = ost_table[i];
2350 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2351 input_streams[ost->source_index].file_index,
2352 input_streams[ost->source_index].st->index,
2353 ost->file_index,
2354 ost->index);
2355 if (ost->sync_ist != &input_streams[ost->source_index])
2356 fprintf(stderr, " [sync #%d.%d]",
2357 ost->sync_ist->file_index,
2358 ost->sync_ist->st->index);
2359 fprintf(stderr, "\n");
2360 }
2361 }
2362
2363 if (ret) {
2364 fprintf(stderr, "%s\n", error);
2365 goto fail;
2366 }
2367
2368 if (want_sdp) {
2369 print_sdp(output_files, nb_output_files);
2370 }
2371
2372 if (verbose >= 0)
2373 fprintf(stderr, "Press ctrl-c to stop encoding\n");
2374 term_init();
2375
2376 timer_start = av_gettime();
2377
2378 for(; received_sigterm == 0;) {
2379 int file_index, ist_index;
2380 AVPacket pkt;
2381 double ipts_min;
2382 double opts_min;
2383
2384 redo:
2385 ipts_min= 1e100;
2386 opts_min= 1e100;
2387
2388 /* select the stream that we must read now by looking at the
2389 smallest output pts */
2390 file_index = -1;
2391 for(i=0;i<nb_ostreams;i++) {
2392 double ipts, opts;
2393 ost = ost_table[i];
2394 os = output_files[ost->file_index];
2395 ist = &input_streams[ost->source_index];
2396 if(ist->is_past_recording_time || no_packet[ist->file_index])
2397 continue;
2398 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2399 ipts = (double)ist->pts;
2400 if (!input_files[ist->file_index].eof_reached){
2401 if(ipts < ipts_min) {
2402 ipts_min = ipts;
2403 if(input_sync ) file_index = ist->file_index;
2404 }
2405 if(opts < opts_min) {
2406 opts_min = opts;
2407 if(!input_sync) file_index = ist->file_index;
2408 }
2409 }
2410 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2411 file_index= -1;
2412 break;
2413 }
2414 }
2415 /* if none, if is finished */
2416 if (file_index < 0) {
2417 if(no_packet_count){
2418 no_packet_count=0;
2419 memset(no_packet, 0, sizeof(no_packet));
2420 usleep(10000);
2421 continue;
2422 }
2423 break;
2424 }
2425
2426 /* finish if limit size exhausted */
2427 if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2428 break;
2429
2430 /* read a frame from it and output it in the fifo */
2431 is = input_files[file_index].ctx;
2432 ret= av_read_frame(is, &pkt);
2433 if(ret == AVERROR(EAGAIN)){
2434 no_packet[file_index]=1;
2435 no_packet_count++;
2436 continue;
2437 }
2438 if (ret < 0) {
2439 input_files[file_index].eof_reached = 1;
2440 if (opt_shortest)
2441 break;
2442 else
2443 continue;
2444 }
2445
2446 no_packet_count=0;
2447 memset(no_packet, 0, sizeof(no_packet));
2448
2449 if (do_pkt_dump) {
2450 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2451 is->streams[pkt.stream_index]);
2452 }
2453 /* the following test is needed in case new streams appear
2454 dynamically in stream : we ignore them */
2455 if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2456 goto discard_packet;
2457 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2458 ist = &input_streams[ist_index];
2459 if (ist->discard)
2460 goto discard_packet;
2461
2462 if (pkt.dts != AV_NOPTS_VALUE)
2463 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2464 if (pkt.pts != AV_NOPTS_VALUE)
2465 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2466
2467 if (ist->ts_scale) {
2468 if(pkt.pts != AV_NOPTS_VALUE)
2469 pkt.pts *= ist->ts_scale;
2470 if(pkt.dts != AV_NOPTS_VALUE)
2471 pkt.dts *= ist->ts_scale;
2472 }
2473
2474 // 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);
2475 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2476 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2477 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2478 int64_t delta= pkt_dts - ist->next_pts;
2479 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2480 input_files[ist->file_index].ts_offset -= delta;
2481 if (verbose > 2)
2482 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2483 delta, input_files[ist->file_index].ts_offset);
2484 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2485 if(pkt.pts != AV_NOPTS_VALUE)
2486 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2487 }
2488 }
2489
2490 /* finish if recording time exhausted */
2491 if (recording_time != INT64_MAX &&
2492 av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2493 ist->is_past_recording_time = 1;
2494 goto discard_packet;
2495 }
2496
2497 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2498 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2499
2500 if (verbose >= 0)
2501 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2502 ist->file_index, ist->st->index);
2503 if (exit_on_error)
2504 exit_program(1);
2505 av_free_packet(&pkt);
2506 goto redo;
2507 }
2508
2509 discard_packet:
2510 av_free_packet(&pkt);
2511
2512 /* dump report by using the output first video and audio streams */
2513 print_report(output_files, ost_table, nb_ostreams, 0);
2514 }
2515
2516 /* at the end of stream, we must flush the decoder buffers */
2517 for (i = 0; i < nb_input_streams; i++) {
2518 ist = &input_streams[i];
2519 if (ist->decoding_needed) {
2520 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2521 }
2522 }
2523
2524 term_exit();
2525
2526 /* write the trailer if needed and close file */
2527 for(i=0;i<nb_output_files;i++) {
2528 os = output_files[i];
2529 av_write_trailer(os);
2530 }
2531
2532 /* dump report by using the first video and audio streams */
2533 print_report(output_files, ost_table, nb_ostreams, 1);
2534
2535 /* close each encoder */
2536 for(i=0;i<nb_ostreams;i++) {
2537 ost = ost_table[i];
2538 if (ost->encoding_needed) {
2539 av_freep(&ost->st->codec->stats_in);
2540 avcodec_close(ost->st->codec);
2541 }
2542 #if CONFIG_AVFILTER
2543 avfilter_graph_free(&ost->graph);
2544 #endif
2545 }
2546
2547 /* close each decoder */
2548 for (i = 0; i < nb_input_streams; i++) {
2549 ist = &input_streams[i];
2550 if (ist->decoding_needed) {
2551 avcodec_close(ist->st->codec);
2552 }
2553 }
2554
2555 /* finished ! */
2556 ret = 0;
2557
2558 fail:
2559 av_freep(&bit_buffer);
2560
2561 if (ost_table) {
2562 for(i=0;i<nb_ostreams;i++) {
2563 ost = ost_table[i];
2564 if (ost) {
2565 if (ost->st->stream_copy)
2566 av_freep(&ost->st->codec->extradata);
2567 if (ost->logfile) {
2568 fclose(ost->logfile);
2569 ost->logfile = NULL;
2570 }
2571 av_fifo_free(ost->fifo); /* works even if fifo is not
2572 initialized but set to zero */
2573 av_freep(&ost->st->codec->subtitle_header);
2574 av_free(ost->pict_tmp.data[0]);
2575 av_free(ost->forced_kf_pts);
2576 if (ost->video_resample)
2577 sws_freeContext(ost->img_resample_ctx);
2578 if (ost->resample)
2579 audio_resample_close(ost->resample);
2580 if (ost->reformat_ctx)
2581 av_audio_convert_free(ost->reformat_ctx);
2582 av_dict_free(&ost->opts);
2583 av_free(ost);
2584 }
2585 }
2586 av_free(ost_table);
2587 }
2588 return ret;
2589 }
2590
2591 static int opt_format(const char *opt, const char *arg)
2592 {
2593 last_asked_format = arg;
2594 return 0;
2595 }
2596
2597 static int opt_video_rc_override_string(const char *opt, const char *arg)
2598 {
2599 video_rc_override_string = arg;
2600 return 0;
2601 }
2602
2603 static int opt_me_threshold(const char *opt, const char *arg)
2604 {
2605 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2606 return 0;
2607 }
2608
2609 static int opt_verbose(const char *opt, const char *arg)
2610 {
2611 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2612 return 0;
2613 }
2614
2615 static int opt_frame_rate(const char *opt, const char *arg)
2616 {
2617 if (av_parse_video_rate(&frame_rate, arg) < 0) {
2618 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2619 exit_program(1);
2620 }
2621 return 0;
2622 }
2623
2624 static int opt_frame_crop(const char *opt, const char *arg)
2625 {
2626 fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2627 return AVERROR(EINVAL);
2628 }
2629
2630 static int opt_frame_size(const char *opt, const char *arg)
2631 {
2632 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2633 fprintf(stderr, "Incorrect frame size\n");
2634 return AVERROR(EINVAL);
2635 }
2636 return 0;
2637 }
2638
2639 static int opt_pad(const char *opt, const char *arg) {
2640 fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2641 return -1;
2642 }
2643
2644 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2645 {
2646 if (strcmp(arg, "list")) {
2647 frame_pix_fmt = av_get_pix_fmt(arg);
2648 if (frame_pix_fmt == PIX_FMT_NONE) {
2649 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2650 return AVERROR(EINVAL);
2651 }
2652 } else {
2653 show_pix_fmts();
2654 exit_program(0);
2655 }
2656 return 0;
2657 }
2658
2659 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2660 {
2661 int x = 0, y = 0;
2662 double ar = 0;
2663 const char *p;
2664 char *end;
2665
2666 p = strchr(arg, ':');
2667 if (p) {
2668 x = strtol(arg, &end, 10);
2669 if (end == p)
2670 y = strtol(end+1, &end, 10);
2671 if (x > 0 && y > 0)
2672 ar = (double)x / (double)y;
2673 } else
2674 ar = strtod(arg, NULL);
2675
2676 if (!ar) {
2677 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2678 return AVERROR(EINVAL);
2679 }
2680 frame_aspect_ratio = ar;
2681 return 0;
2682 }
2683
2684 static int opt_metadata(const char *opt, const char *arg)
2685 {
2686 char *mid= strchr(arg, '=');
2687
2688 if(!mid){
2689 fprintf(stderr, "Missing =\n");
2690 exit_program(1);
2691 }
2692 *mid++= 0;
2693
2694 av_dict_set(&metadata, arg, mid, 0);
2695
2696 return 0;
2697 }
2698
2699 static int opt_qscale(const char *opt, const char *arg)
2700 {
2701 video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2702 if (video_qscale == 0) {
2703 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2704 return AVERROR(EINVAL);
2705 }
2706 return 0;
2707 }
2708
2709 static int opt_top_field_first(const char *opt, const char *arg)
2710 {
2711 top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2712 return 0;
2713 }
2714
2715 static int opt_thread_count(const char *opt, const char *arg)
2716 {
2717 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2718 #if !HAVE_THREADS
2719 if (verbose >= 0)
2720 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2721 #endif
2722 return 0;
2723 }
2724
2725 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2726 {
2727 if (strcmp(arg, "list")) {
2728 audio_sample_fmt = av_get_sample_fmt(arg);
2729 if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2730 av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2731 return AVERROR(EINVAL);
2732 }
2733 } else {
2734 int i;
2735 char fmt_str[128];
2736 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2737 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2738 exit_program(0);
2739 }
2740 return 0;
2741 }
2742
2743 static int opt_audio_rate(const char *opt, const char *arg)
2744 {
2745 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2746 return 0;
2747 }
2748
2749 static int opt_audio_channels(const char *opt, const char *arg)
2750 {
2751 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2752 return 0;
2753 }
2754
2755 static int opt_codec(const char *opt, const char *arg)
2756 {
2757 return av_dict_set(&codec_names, opt, arg, 0);
2758 }
2759
2760 static int opt_audio_codec(const char *opt, const char *arg)
2761 {
2762 return opt_codec("codec:a", arg);
2763 }
2764
2765 static int opt_video_codec(const char *opt, const char *arg)
2766 {
2767 return opt_codec("codec:v", arg);
2768 }
2769
2770 static int opt_subtitle_codec(const char *opt, const char *arg)
2771 {
2772 return opt_codec("codec:s", arg);
2773 }
2774
2775 static int opt_data_codec(const char *opt, const char *arg)
2776 {
2777 return opt_codec("codec:d", arg);
2778 }
2779
2780 static int opt_codec_tag(const char *opt, const char *arg)
2781 {
2782 char *tail;
2783 uint32_t *codec_tag;
2784
2785 codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2786 !strcmp(opt, "vtag") ? &video_codec_tag :
2787 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2788 if (!codec_tag)
2789 return -1;
2790
2791 *codec_tag = strtol(arg, &tail, 0);
2792 if (!tail || *tail)
2793 *codec_tag = AV_RL32(arg);
2794
2795 return 0;
2796 }
2797
2798 static int opt_map(const char *opt, const char *arg)
2799 {
2800 StreamMap *m = NULL;
2801 int i, negative = 0, file_idx;
2802 int sync_file_idx = -1, sync_stream_idx;
2803 char *p, *sync;
2804 char *map;
2805
2806 if (*arg == '-') {
2807 negative = 1;
2808 arg++;
2809 }
2810 map = av_strdup(arg);
2811
2812 /* parse sync stream first, just pick first matching stream */
2813 if (sync = strchr(map, ',')) {
2814 *sync = 0;
2815 sync_file_idx = strtol(sync + 1, &sync, 0);
2816 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2817 av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2818 exit_program(1);
2819 }
2820 if (*sync)
2821 sync++;
2822 for (i = 0; i < input_files[sync_file_idx].ctx->nb_streams; i++)
2823 if (check_stream_specifier(input_files[sync_file_idx].ctx,
2824 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2825 sync_stream_idx = i;
2826 break;
2827 }
2828 if (i == input_files[sync_file_idx].ctx->nb_streams) {
2829 av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2830 "match any streams.\n", arg);
2831 exit_program(1);
2832 }
2833 }
2834
2835
2836 file_idx = strtol(map, &p, 0);
2837 if (file_idx >= nb_input_files || file_idx < 0) {
2838 av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2839 exit_program(1);
2840 }
2841 if (negative)
2842 /* disable some already defined maps */
2843 for (i = 0; i < nb_stream_maps; i++) {
2844 m = &stream_maps[i];
2845 if (check_stream_specifier(input_files[m->file_index].ctx,
2846 input_files[m->file_index].ctx->streams[m->stream_index],
2847 *p == ':' ? p + 1 : p) > 0)
2848 m->disabled = 1;
2849 }
2850 else
2851 for (i = 0; i < input_files[file_idx].ctx->nb_streams; i++) {
2852 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2853 *p == ':' ? p + 1 : p) <= 0)
2854 continue;
2855 stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2856 m = &stream_maps[nb_stream_maps - 1];
2857
2858 m->file_index = file_idx;
2859 m->stream_index = i;
2860
2861 if (sync_file_idx >= 0) {
2862 m->sync_file_index = sync_file_idx;
2863 m->sync_stream_index = sync_stream_idx;
2864 } else {
2865 m->sync_file_index = file_idx;
2866 m->sync_stream_index = i;
2867 }
2868 }
2869
2870 if (!m) {
2871 av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2872 exit_program(1);
2873 }
2874
2875 av_freep(&map);
2876 return 0;
2877 }
2878
2879 static void parse_meta_type(char *arg, char *type, int *index)
2880 {
2881 if (*arg == ':') {
2882 *type = *(++arg);
2883 switch (*arg) {
2884 case 'g':
2885 break;
2886 case 's':
2887 case 'c':
2888 case 'p':
2889 if (*(++arg) == ':')
2890 *index = strtol(++arg, NULL, 0);
2891 break;
2892 default:
2893 fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2894 exit_program(1);
2895 }
2896 } else
2897 *type = 'g';
2898 }
2899
2900 static int opt_map_metadata(const char *opt, const char *arg)
2901 {
2902 MetadataMap *m, *m1;
2903 char *p;
2904
2905 meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2906 &nb_meta_data_maps, nb_meta_data_maps + 1);
2907
2908 m = &meta_data_maps[nb_meta_data_maps - 1][1];
2909 m->file = strtol(arg, &p, 0);
2910 parse_meta_type(p, &m->type, &m->index);
2911
2912 m1 = &meta_data_maps[nb_meta_data_maps - 1][0];
2913 if (p = strchr(opt, ':'))
2914 parse_meta_type(p, &m1->type, &m1->index);
2915 else
2916 m1->type = 'g';
2917
2918 if (m->type == 'g' || m1->type == 'g')
2919 metadata_global_autocopy = 0;
2920 if (m->type == 's' || m1->type == 's')
2921 metadata_streams_autocopy = 0;
2922 if (m->type == 'c' || m1->type == 'c')
2923 metadata_chapters_autocopy = 0;
2924
2925 return 0;
2926 }
2927
2928 static int opt_input_ts_scale(const char *opt, const char *arg)
2929 {
2930 unsigned int stream;
2931 double scale;
2932 char *p;
2933
2934 stream = strtol(arg, &p, 0);
2935 if (*p)
2936 p++;
2937 scale= strtod(p, &p);
2938
2939 ts_scale = grow_array(ts_scale, sizeof(*ts_scale), &nb_ts_scale, stream + 1);
2940 ts_scale[stream] = scale;
2941 return 0;
2942 }
2943
2944 static int opt_recording_time(const char *opt, const char *arg)
2945 {
2946 recording_time = parse_time_or_die(opt, arg, 1);
2947 return 0;
2948 }
2949
2950 static int opt_start_time(const char *opt, const char *arg)
2951 {
2952 start_time = parse_time_or_die(opt, arg, 1);
2953 return 0;
2954 }
2955
2956 static int opt_input_ts_offset(const char *opt, const char *arg)
2957 {
2958 input_ts_offset = parse_time_or_die(opt, arg, 1);
2959 return 0;
2960 }
2961
2962
2963 static int opt_input_file(const char *opt, const char *filename)
2964 {
2965 AVFormatContext *ic;
2966 AVInputFormat *file_iformat = NULL;
2967 int err, i, ret, rfps, rfps_base;
2968 int64_t timestamp;
2969 uint8_t buf[128];
2970 AVDictionary **opts;
2971 int orig_nb_streams; // number of streams before avformat_find_stream_info
2972
2973 if (last_asked_format) {
2974 if (!(file_iformat = av_find_input_format(last_asked_format))) {
2975 fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
2976 exit_program(1);
2977 }
2978 last_asked_format = NULL;
2979 }
2980
2981 if (!strcmp(filename, "-"))
2982 filename = "pipe:";
2983
2984 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2985 !strcmp(filename, "/dev/stdin");
2986
2987 /* get default parameters from command line */
2988 ic = avformat_alloc_context();
2989 if (!ic) {
2990 print_error(filename, AVERROR(ENOMEM));
2991 exit_program(1);
2992 }
2993 if (audio_sample_rate) {
2994 snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
2995 av_dict_set(&format_opts, "sample_rate", buf, 0);
2996 }
2997 if (audio_channels) {
2998 snprintf(buf, sizeof(buf), "%d", audio_channels);
2999 av_dict_set(&format_opts, "channels", buf, 0);
3000 }
3001 if (frame_rate.num) {
3002 snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
3003 av_dict_set(&format_opts, "framerate", buf, 0);
3004 }
3005 if (frame_width && frame_height) {
3006 snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
3007 av_dict_set(&format_opts, "video_size", buf, 0);
3008 }
3009 if (frame_pix_fmt != PIX_FMT_NONE)
3010 av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
3011
3012 ic->flags |= AVFMT_FLAG_NONBLOCK;
3013
3014 /* open the input file with generic libav function */
3015 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3016 if (err < 0) {
3017 print_error(filename, err);
3018 exit_program(1);
3019 }
3020 assert_avoptions(format_opts);
3021
3022 if(opt_programid) {
3023 int i, j;
3024 int found=0;
3025 for(i=0; i<ic->nb_streams; i++){
3026 ic->streams[i]->discard= AVDISCARD_ALL;
3027 }
3028 for(i=0; i<ic->nb_programs; i++){
3029 AVProgram *p= ic->programs[i];
3030 if(p->id != opt_programid){
3031 p->discard = AVDISCARD_ALL;
3032 }else{
3033 found=1;
3034 for(j=0; j<p->nb_stream_indexes; j++){
3035 ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3036 }
3037 }
3038 }
3039 if(!found){
3040 fprintf(stderr, "Specified program id not found\n");
3041 exit_program(1);
3042 }
3043 opt_programid=0;
3044 }
3045
3046 /* apply forced codec ids */
3047 for (i = 0; i < ic->nb_streams; i++)
3048 choose_codec(ic, ic->streams[i], ic->streams[i]->codec->codec_type, codec_names);
3049
3050 /* Set AVCodecContext options for avformat_find_stream_info */
3051 opts = setup_find_stream_info_opts(ic, codec_opts);
3052 orig_nb_streams = ic->nb_streams;
3053
3054 /* If not enough info to get the stream parameters, we decode the
3055 first frames to get it. (used in mpeg case for example) */
3056 ret = avformat_find_stream_info(ic, opts);
3057 if (ret < 0 && verbose >= 0) {
3058 fprintf(stderr, "%s: could not find codec parameters\n", filename);
3059 av_close_input_file(ic);
3060 exit_program(1);
3061 }
3062
3063 timestamp = start_time;
3064 /* add the stream start time */
3065 if (ic->start_time != AV_NOPTS_VALUE)
3066 timestamp += ic->start_time;
3067
3068 /* if seeking requested, we execute it */
3069 if (start_time != 0) {
3070 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3071 if (ret < 0) {
3072 fprintf(stderr, "%s: could not seek to position %0.3f\n",
3073 filename, (double)timestamp / AV_TIME_BASE);
3074 }
3075 /* reset seek info */
3076 start_time = 0;
3077 }
3078
3079 /* update the current parameters so that they match the one of the input stream */
3080 for(i=0;i<ic->nb_streams;i++) {
3081 AVStream *st = ic->streams[i];
3082 AVCodecContext *dec = st->codec;
3083 InputStream *ist;
3084
3085 dec->thread_count = thread_count;
3086
3087 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3088 ist = &input_streams[nb_input_streams - 1];
3089 ist->st = st;
3090 ist->file_index = nb_input_files;
3091 ist->discard = 1;
3092 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
3093
3094 if (i < nb_ts_scale)
3095 ist->ts_scale = ts_scale[i];
3096
3097 ist->dec = choose_codec(ic, st, dec->codec_type, codec_names);
3098
3099 switch (dec->codec_type) {
3100 case AVMEDIA_TYPE_AUDIO:
3101 if(audio_disable)
3102 st->discard= AVDISCARD_ALL;
3103 break;
3104 case AVMEDIA_TYPE_VIDEO:
3105 rfps = ic->streams[i]->r_frame_rate.num;
3106 rfps_base = ic->streams[i]->r_frame_rate.den;
3107 if (dec->lowres) {
3108 dec->flags |= CODEC_FLAG_EMU_EDGE;
3109 dec->height >>= dec->lowres;
3110 dec->width >>= dec->lowres;
3111 }
3112 if(me_threshold)
3113 dec->debug |= FF_DEBUG_MV;
3114
3115 if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3116
3117 if (verbose >= 0)
3118 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3119 i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3120
3121 (float)rfps / rfps_base, rfps, rfps_base);
3122 }
3123
3124 if(video_disable)
3125 st->discard= AVDISCARD_ALL;
3126 else if(video_discard)
3127 st->discard= video_discard;
3128 break;
3129 case AVMEDIA_TYPE_DATA:
3130 break;
3131 case AVMEDIA_TYPE_SUBTITLE:
3132 if(subtitle_disable)
3133 st->discard = AVDISCARD_ALL;
3134 break;
3135 case AVMEDIA_TYPE_ATTACHMENT:
3136 case AVMEDIA_TYPE_UNKNOWN:
3137 break;
3138 default:
3139 abort();
3140 }
3141 }
3142
3143 /* dump the file content */
3144 if (verbose >= 0)
3145 av_dump_format(ic, nb_input_files, filename, 0);
3146
3147 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3148 input_files[nb_input_files - 1].ctx = ic;
3149 input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
3150 input_files[nb_input_files - 1].ts_offset = input_ts_offset - (copy_ts ? 0 : timestamp);
3151
3152 frame_rate = (AVRational){0, 0};
3153 frame_pix_fmt = PIX_FMT_NONE;
3154 frame_height = 0;
3155 frame_width = 0;
3156 audio_sample_rate = 0;
3157 audio_channels = 0;
3158 audio_sample_fmt = AV_SAMPLE_FMT_NONE;
3159 av_freep(&ts_scale);
3160 nb_ts_scale = 0;
3161
3162 for (i = 0; i < orig_nb_streams; i++)
3163 av_dict_free(&opts[i]);
3164 av_freep(&opts);