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avconv: move mux_preload and mux_max_delay to options context
[libav.git] / avconv.c
1 /*
2 * avconv main
3 * Copyright (c) 2000-2011 The libav developers.
4 *
5 * This file is part of Libav.
6 *
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include "config.h"
23 #include <ctype.h>
24 #include <string.h>
25 #include <math.h>
26 #include <stdlib.h>
27 #include <errno.h>
28 #include <signal.h>
29 #include <limits.h>
30 #include <unistd.h>
31 #include "libavformat/avformat.h"
32 #include "libavdevice/avdevice.h"
33 #include "libswscale/swscale.h"
34 #include "libavutil/opt.h"
35 #include "libavcodec/audioconvert.h"
36 #include "libavutil/audioconvert.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavformat/os_support.h"
48
49 #if CONFIG_AVFILTER
50 # include "libavfilter/avfilter.h"
51 # include "libavfilter/avfiltergraph.h"
52 # include "libavfilter/vsrc_buffer.h"
53 #endif
54
55 #if HAVE_SYS_RESOURCE_H
56 #include <sys/types.h>
57 #include <sys/time.h>
58 #include <sys/resource.h>
59 #elif HAVE_GETPROCESSTIMES
60 #include <windows.h>
61 #endif
62 #if HAVE_GETPROCESSMEMORYINFO
63 #include <windows.h>
64 #include <psapi.h>
65 #endif
66
67 #if HAVE_SYS_SELECT_H
68 #include <sys/select.h>
69 #endif
70
71 #include <time.h>
72
73 #include "cmdutils.h"
74
75 #include "libavutil/avassert.h"
76
77 const char program_name[] = "avconv";
78 const int program_birth_year = 2000;
79
80 /* select an input stream for an output stream */
81 typedef struct StreamMap {
82 int disabled; /** 1 is this mapping is disabled by a negative map */
83 int file_index;
84 int stream_index;
85 int sync_file_index;
86 int sync_stream_index;
87 } StreamMap;
88
89 /**
90 * select an input file for an output file
91 */
92 typedef struct MetadataMap {
93 int file; ///< file index
94 char type; ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
95 int index; ///< stream/chapter/program number
96 } MetadataMap;
97
98 static const OptionDef options[];
99
100 /* indexed by output file stream index */
101 static int *streamid_map = NULL;
102 static int nb_streamid_map = 0;
103
104 static int frame_width = 0;
105 static int frame_height = 0;
106 static float frame_aspect_ratio = 0;
107 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
108 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
109 static AVRational frame_rate;
110 static float video_qscale = 0;
111 static uint16_t *intra_matrix = NULL;
112 static uint16_t *inter_matrix = NULL;
113 static const char *video_rc_override_string=NULL;
114 static int video_disable = 0;
115 static int video_discard = 0;
116 static unsigned int video_codec_tag = 0;
117 static char *video_language = NULL;
118 static int same_quant = 0;
119 static int do_deinterlace = 0;
120 static int top_field_first = -1;
121 static int me_threshold = 0;
122 static int intra_dc_precision = 8;
123 static int qp_hist = 0;
124 #if CONFIG_AVFILTER
125 static char *vfilters = NULL;
126 #endif
127
128 static int audio_sample_rate = 0;
129 #define QSCALE_NONE -99999
130 static float audio_qscale = QSCALE_NONE;
131 static int audio_disable = 0;
132 static int audio_channels = 0;
133 static unsigned int audio_codec_tag = 0;
134 static char *audio_language = NULL;
135
136 static int subtitle_disable = 0;
137 static char *subtitle_language = NULL;
138 static unsigned int subtitle_codec_tag = 0;
139
140 static int data_disable = 0;
141 static unsigned int data_codec_tag = 0;
142
143 static int file_overwrite = 0;
144 static int do_benchmark = 0;
145 static int do_hex_dump = 0;
146 static int do_pkt_dump = 0;
147 static int do_psnr = 0;
148 static int do_pass = 0;
149 static char *pass_logfilename_prefix = NULL;
150 static int video_sync_method= -1;
151 static int audio_sync_method= 0;
152 static float audio_drift_threshold= 0.1;
153 static int copy_ts= 0;
154 static int copy_tb;
155 static int opt_shortest = 0;
156 static char *vstats_filename;
157 static FILE *vstats_file;
158 static int opt_programid = 0;
159 static int copy_initial_nonkeyframes = 0;
160
161 static int audio_volume = 256;
162
163 static int exit_on_error = 0;
164 static int using_stdin = 0;
165 static int verbose = 1;
166 static int64_t video_size = 0;
167 static int64_t audio_size = 0;
168 static int64_t extra_size = 0;
169 static int nb_frames_dup = 0;
170 static int nb_frames_drop = 0;
171 static int input_sync;
172 static int force_fps = 0;
173 static char *forced_key_frames = NULL;
174
175 static float dts_delta_threshold = 10;
176
177 static uint8_t *audio_buf;
178 static uint8_t *audio_out;
179 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
180
181 static short *samples;
182
183 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
184
185 typedef struct InputStream {
186 int file_index;
187 AVStream *st;
188 int discard; /* true if stream data should be discarded */
189 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
190 AVCodec *dec;
191
192 int64_t start; /* time when read started */
193 int64_t next_pts; /* synthetic pts for cases where pkt.pts
194 is not defined */
195 int64_t pts; /* current pts */
196 PtsCorrectionContext pts_ctx;
197 double ts_scale;
198 int is_start; /* is 1 at the start and after a discontinuity */
199 int showed_multi_packet_warning;
200 AVDictionary *opts;
201 } InputStream;
202
203 typedef struct InputFile {
204 AVFormatContext *ctx;
205 int eof_reached; /* true if eof reached */
206 int ist_index; /* index of first stream in ist_table */
207 int buffer_size; /* current total buffer size */
208 int64_t ts_offset;
209 int nb_streams; /* number of stream that avconv is aware of; may be different
210 from ctx.nb_streams if new streams appear during av_read_frame() */
211 int rate_emu;
212 } InputFile;
213
214 typedef struct OutputStream {
215 int file_index; /* file index */
216 int index; /* stream index in the output file */
217 int source_index; /* InputStream index */
218 AVStream *st; /* stream in the output file */
219 int encoding_needed; /* true if encoding needed for this stream */
220 int frame_number;
221 /* input pts and corresponding output pts
222 for A/V sync */
223 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
224 struct InputStream *sync_ist; /* input stream to sync against */
225 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
226 AVBitStreamFilterContext *bitstream_filters;
227 AVCodec *enc;
228 int64_t max_frames;
229
230 /* video only */
231 int video_resample;
232 AVFrame pict_tmp; /* temporary image for resampling */
233 struct SwsContext *img_resample_ctx; /* for image resampling */
234 int resample_height;
235 int resample_width;
236 int resample_pix_fmt;
237 AVRational frame_rate;
238
239 float frame_aspect_ratio;
240
241 /* forced key frames */
242 int64_t *forced_kf_pts;
243 int forced_kf_count;
244 int forced_kf_index;
245
246 /* audio only */
247 int audio_resample;
248 ReSampleContext *resample; /* for audio resampling */
249 int resample_sample_fmt;
250 int resample_channels;
251 int resample_sample_rate;
252 int reformat_pair;
253 AVAudioConvert *reformat_ctx;
254 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
255 FILE *logfile;
256
257 #if CONFIG_AVFILTER
258 AVFilterContext *output_video_filter;
259 AVFilterContext *input_video_filter;
260 AVFilterBufferRef *picref;
261 char *avfilter;
262 AVFilterGraph *graph;
263 #endif
264
265 int sws_flags;
266 AVDictionary *opts;
267 int is_past_recording_time;
268 } OutputStream;
269
270
271 typedef struct OutputFile {
272 AVFormatContext *ctx;
273 AVDictionary *opts;
274 int ost_index; /* index of the first stream in output_streams */
275 int64_t recording_time; /* desired length of the resulting file in microseconds */
276 int64_t start_time; /* start time in microseconds */
277 uint64_t limit_filesize;
278 } OutputFile;
279
280 static InputStream *input_streams = NULL;
281 static int nb_input_streams = 0;
282 static InputFile *input_files = NULL;
283 static int nb_input_files = 0;
284
285 static OutputStream *output_streams = NULL;
286 static int nb_output_streams = 0;
287 static OutputFile *output_files = NULL;
288 static int nb_output_files = 0;
289
290 typedef struct OptionsContext {
291 /* input/output options */
292 int64_t start_time;
293 const char *format;
294
295 SpecifierOpt *codec_names;
296 int nb_codec_names;
297
298 /* input options */
299 int64_t input_ts_offset;
300 int rate_emu;
301
302 SpecifierOpt *ts_scale;
303 int nb_ts_scale;
304
305 /* output options */
306 StreamMap *stream_maps;
307 int nb_stream_maps;
308 /* first item specifies output metadata, second is input */
309 MetadataMap (*meta_data_maps)[2];
310 int nb_meta_data_maps;
311 int metadata_global_manual;
312 int metadata_streams_manual;
313 int metadata_chapters_manual;
314
315 int chapters_input_file;
316
317 int64_t recording_time;
318 uint64_t limit_filesize;
319 float mux_preload;
320 float mux_max_delay;
321
322 SpecifierOpt *metadata;
323 int nb_metadata;
324 SpecifierOpt *max_frames;
325 int nb_max_frames;
326 SpecifierOpt *bitstream_filters;
327 int nb_bitstream_filters;
328 } OptionsContext;
329
330 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
331 {\
332 int i, ret;\
333 for (i = 0; i < o->nb_ ## name; i++) {\
334 char *spec = o->name[i].specifier;\
335 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
336 outvar = o->name[i].u.type;\
337 else if (ret < 0)\
338 exit_program(1);\
339 }\
340 }
341
342 static void reset_options(OptionsContext *o)
343 {
344 const OptionDef *po = options;
345
346 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
347 while (po->name) {
348 void *dst = (uint8_t*)o + po->u.off;
349
350 if (po->flags & OPT_SPEC) {
351 SpecifierOpt **so = dst;
352 int i, *count = (int*)(so + 1);
353 for (i = 0; i < *count; i++) {
354 av_freep(&(*so)[i].specifier);
355 if (po->flags & OPT_STRING)
356 av_freep(&(*so)[i].u.str);
357 }
358 av_freep(so);
359 *count = 0;
360 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
361 av_freep(dst);
362 po++;
363 }
364
365 av_freep(&o->stream_maps);
366 av_freep(&o->meta_data_maps);
367
368 memset(o, 0, sizeof(*o));
369
370 o->mux_preload = 0.5;
371 o->mux_max_delay = 0.7;
372 o->recording_time = INT64_MAX;
373 o->limit_filesize = UINT64_MAX;
374 o->chapters_input_file = INT_MAX;
375
376 uninit_opts();
377 init_opts();
378 }
379
380 #if CONFIG_AVFILTER
381
382 static int configure_video_filters(InputStream *ist, OutputStream *ost)
383 {
384 AVFilterContext *last_filter, *filter;
385 /** filter graph containing all filters including input & output */
386 AVCodecContext *codec = ost->st->codec;
387 AVCodecContext *icodec = ist->st->codec;
388 FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
389 AVRational sample_aspect_ratio;
390 char args[255];
391 int ret;
392
393 ost->graph = avfilter_graph_alloc();
394
395 if (ist->st->sample_aspect_ratio.num){
396 sample_aspect_ratio = ist->st->sample_aspect_ratio;
397 }else
398 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
399
400 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
401 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
402 sample_aspect_ratio.num, sample_aspect_ratio.den);
403
404 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
405 "src", args, NULL, ost->graph);
406 if (ret < 0)
407 return ret;
408 ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
409 "out", NULL, &ffsink_ctx, ost->graph);
410 if (ret < 0)
411 return ret;
412 last_filter = ost->input_video_filter;
413
414 if (codec->width != icodec->width || codec->height != icodec->height) {
415 snprintf(args, 255, "%d:%d:flags=0x%X",
416 codec->width,
417 codec->height,
418 ost->sws_flags);
419 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
420 NULL, args, NULL, ost->graph)) < 0)
421 return ret;
422 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
423 return ret;
424 last_filter = filter;
425 }
426
427 snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
428 ost->graph->scale_sws_opts = av_strdup(args);
429
430 if (ost->avfilter) {
431 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
432 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
433
434 outputs->name = av_strdup("in");
435 outputs->filter_ctx = last_filter;
436 outputs->pad_idx = 0;
437 outputs->next = NULL;
438
439 inputs->name = av_strdup("out");
440 inputs->filter_ctx = ost->output_video_filter;
441 inputs->pad_idx = 0;
442 inputs->next = NULL;
443
444 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
445 return ret;
446 av_freep(&ost->avfilter);
447 } else {
448 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
449 return ret;
450 }
451
452 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
453 return ret;
454
455 codec->width = ost->output_video_filter->inputs[0]->w;
456 codec->height = ost->output_video_filter->inputs[0]->h;
457 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
458 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
459 av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
460 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
461
462 return 0;
463 }
464 #endif /* CONFIG_AVFILTER */
465
466 static void term_exit(void)
467 {
468 av_log(NULL, AV_LOG_QUIET, "");
469 }
470
471 static volatile int received_sigterm = 0;
472 static volatile int received_nb_signals = 0;
473
474 static void
475 sigterm_handler(int sig)
476 {
477 received_sigterm = sig;
478 received_nb_signals++;
479 term_exit();
480 }
481
482 static void term_init(void)
483 {
484 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
485 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
486 #ifdef SIGXCPU
487 signal(SIGXCPU, sigterm_handler);
488 #endif
489 }
490
491 static int decode_interrupt_cb(void)
492 {
493 return received_nb_signals > 1;
494 }
495
496 void exit_program(int ret)
497 {
498 int i;
499
500 /* close files */
501 for(i=0;i<nb_output_files;i++) {
502 AVFormatContext *s = output_files[i].ctx;
503 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
504 avio_close(s->pb);
505 avformat_free_context(s);
506 av_dict_free(&output_files[i].opts);
507 }
508 for(i=0;i<nb_input_files;i++) {
509 av_close_input_file(input_files[i].ctx);
510 }
511 for (i = 0; i < nb_input_streams; i++)
512 av_dict_free(&input_streams[i].opts);
513
514 av_free(intra_matrix);
515 av_free(inter_matrix);
516
517 if (vstats_file)
518 fclose(vstats_file);
519 av_free(vstats_filename);
520
521 av_freep(&input_streams);
522 av_freep(&input_files);
523 av_freep(&output_streams);
524 av_freep(&output_files);
525
526 uninit_opts();
527 av_free(audio_buf);
528 av_free(audio_out);
529 allocated_audio_buf_size= allocated_audio_out_size= 0;
530 av_free(samples);
531
532 #if CONFIG_AVFILTER
533 avfilter_uninit();
534 #endif
535
536 if (received_sigterm) {
537 fprintf(stderr,
538 "Received signal %d: terminating.\n",
539 (int) received_sigterm);
540 exit (255);
541 }
542
543 exit(ret); /* not all OS-es handle main() return value */
544 }
545
546 static void assert_avoptions(AVDictionary *m)
547 {
548 AVDictionaryEntry *t;
549 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
550 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
551 exit_program(1);
552 }
553 }
554
555 static void assert_codec_experimental(AVCodecContext *c, int encoder)
556 {
557 const char *codec_string = encoder ? "encoder" : "decoder";
558 AVCodec *codec;
559 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
560 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
561 av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
562 "results.\nAdd '-strict experimental' if you want to use it.\n",
563 codec_string, c->codec->name);
564 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
565 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
566 av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
567 codec_string, codec->name);
568 exit_program(1);
569 }
570 }
571
572 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
573 {
574 if(codec && codec->sample_fmts){
575 const enum AVSampleFormat *p= codec->sample_fmts;
576 for(; *p!=-1; p++){
577 if(*p == st->codec->sample_fmt)
578 break;
579 }
580 if (*p == -1) {
581 av_log(NULL, AV_LOG_WARNING,
582 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
583 av_get_sample_fmt_name(st->codec->sample_fmt),
584 codec->name,
585 av_get_sample_fmt_name(codec->sample_fmts[0]));
586 st->codec->sample_fmt = codec->sample_fmts[0];
587 }
588 }
589 }
590
591 /**
592 * Update the requested input sample format based on the output sample format.
593 * This is currently only used to request float output from decoders which
594 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
595 * Ideally this will be removed in the future when decoders do not do format
596 * conversion and only output in their native format.
597 */
598 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
599 AVCodecContext *enc)
600 {
601 /* if sample formats match or a decoder sample format has already been
602 requested, just return */
603 if (enc->sample_fmt == dec->sample_fmt ||
604 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
605 return;
606
607 /* if decoder supports more than one output format */
608 if (dec_codec && dec_codec->sample_fmts &&
609 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
610 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
611 const enum AVSampleFormat *p;
612 int min_dec = -1, min_inc = -1;
613
614 /* find a matching sample format in the encoder */
615 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
616 if (*p == enc->sample_fmt) {
617 dec->request_sample_fmt = *p;
618 return;
619 } else if (*p > enc->sample_fmt) {
620 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
621 } else
622 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
623 }
624
625 /* if none match, provide the one that matches quality closest */
626 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
627 enc->sample_fmt - min_dec;
628 }
629 }
630
631 static void choose_sample_rate(AVStream *st, AVCodec *codec)
632 {
633 if(codec && codec->supported_samplerates){
634 const int *p= codec->supported_samplerates;
635 int best=0;
636 int best_dist=INT_MAX;
637 for(; *p; p++){
638 int dist= abs(st->codec->sample_rate - *p);
639 if(dist < best_dist){
640 best_dist= dist;
641 best= *p;
642 }
643 }
644 if(best_dist){
645 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
646 }
647 st->codec->sample_rate= best;
648 }
649 }
650
651 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
652 {
653 if(codec && codec->pix_fmts){
654 const enum PixelFormat *p= codec->pix_fmts;
655 if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
656 if(st->codec->codec_id==CODEC_ID_MJPEG){
657 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
658 }else if(st->codec->codec_id==CODEC_ID_LJPEG){
659 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};
660 }
661 }
662 for(; *p!=-1; p++){
663 if(*p == st->codec->pix_fmt)
664 break;
665 }
666 if (*p == -1) {
667 if(st->codec->pix_fmt != PIX_FMT_NONE)
668 av_log(NULL, AV_LOG_WARNING,
669 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
670 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
671 codec->name,
672 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
673 st->codec->pix_fmt = codec->pix_fmts[0];
674 }
675 }
676 }
677
678 static double
679 get_sync_ipts(const OutputStream *ost)
680 {
681 const InputStream *ist = ost->sync_ist;
682 OutputFile *of = &output_files[ost->file_index];
683 return (double)(ist->pts - of->start_time)/AV_TIME_BASE;
684 }
685
686 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
687 int ret;
688
689 while(bsfc){
690 AVPacket new_pkt= *pkt;
691 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
692 &new_pkt.data, &new_pkt.size,
693 pkt->data, pkt->size,
694 pkt->flags & AV_PKT_FLAG_KEY);
695 if(a>0){
696 av_free_packet(pkt);
697 new_pkt.destruct= av_destruct_packet;
698 } else if(a<0){
699 fprintf(stderr, "%s failed for stream %d, codec %s",
700 bsfc->filter->name, pkt->stream_index,
701 avctx->codec ? avctx->codec->name : "copy");
702 print_error("", a);
703 if (exit_on_error)
704 exit_program(1);
705 }
706 *pkt= new_pkt;
707
708 bsfc= bsfc->next;
709 }
710
711 ret= av_interleaved_write_frame(s, pkt);
712 if(ret < 0){
713 print_error("av_interleaved_write_frame()", ret);
714 exit_program(1);
715 }
716 }
717
718 static void do_audio_out(AVFormatContext *s,
719 OutputStream *ost,
720 InputStream *ist,
721 unsigned char *buf, int size)
722 {
723 uint8_t *buftmp;
724 int64_t audio_out_size, audio_buf_size;
725 int64_t allocated_for_size= size;
726
727 int size_out, frame_bytes, ret, resample_changed;
728 AVCodecContext *enc= ost->st->codec;
729 AVCodecContext *dec= ist->st->codec;
730 int osize = av_get_bytes_per_sample(enc->sample_fmt);
731 int isize = av_get_bytes_per_sample(dec->sample_fmt);
732 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
733
734 need_realloc:
735 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
736 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
737 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
738 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
739 audio_buf_size*= osize*enc->channels;
740
741 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
742 if(coded_bps > 8*osize)
743 audio_out_size= audio_out_size * coded_bps / (8*osize);
744 audio_out_size += FF_MIN_BUFFER_SIZE;
745
746 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
747 fprintf(stderr, "Buffer sizes too large\n");
748 exit_program(1);
749 }
750
751 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
752 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
753 if (!audio_buf || !audio_out){
754 fprintf(stderr, "Out of memory in do_audio_out\n");
755 exit_program(1);
756 }
757
758 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
759 ost->audio_resample = 1;
760
761 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
762 ost->resample_channels != dec->channels ||
763 ost->resample_sample_rate != dec->sample_rate;
764
765 if ((ost->audio_resample && !ost->resample) || resample_changed) {
766 if (resample_changed) {
767 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",
768 ist->file_index, ist->st->index,
769 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
770 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
771 ost->resample_sample_fmt = dec->sample_fmt;
772 ost->resample_channels = dec->channels;
773 ost->resample_sample_rate = dec->sample_rate;
774 if (ost->resample)
775 audio_resample_close(ost->resample);
776 }
777 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
778 if (audio_sync_method <= 1 &&
779 ost->resample_sample_fmt == enc->sample_fmt &&
780 ost->resample_channels == enc->channels &&
781 ost->resample_sample_rate == enc->sample_rate) {
782 ost->resample = NULL;
783 ost->audio_resample = 0;
784 } else if (ost->audio_resample) {
785 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
786 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
787 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
788 enc->sample_rate, dec->sample_rate,
789 enc->sample_fmt, dec->sample_fmt,
790 16, 10, 0, 0.8);
791 if (!ost->resample) {
792 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
793 dec->channels, dec->sample_rate,
794 enc->channels, enc->sample_rate);
795 exit_program(1);
796 }
797 }
798 }
799
800 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
801 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
802 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
803 if (ost->reformat_ctx)
804 av_audio_convert_free(ost->reformat_ctx);
805 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
806 dec->sample_fmt, 1, NULL, 0);
807 if (!ost->reformat_ctx) {
808 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
809 av_get_sample_fmt_name(dec->sample_fmt),
810 av_get_sample_fmt_name(enc->sample_fmt));
811 exit_program(1);
812 }
813 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
814 }
815
816 if(audio_sync_method){
817 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
818 - av_fifo_size(ost->fifo)/(enc->channels * 2);
819 double idelta= delta*dec->sample_rate / enc->sample_rate;
820 int byte_delta= ((int)idelta)*2*dec->channels;
821
822 //FIXME resample delay
823 if(fabs(delta) > 50){
824 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
825 if(byte_delta < 0){
826 byte_delta= FFMAX(byte_delta, -size);
827 size += byte_delta;
828 buf -= byte_delta;
829 if(verbose > 2)
830 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
831 if(!size)
832 return;
833 ist->is_start=0;
834 }else{
835 static uint8_t *input_tmp= NULL;
836 input_tmp= av_realloc(input_tmp, byte_delta + size);
837
838 if(byte_delta > allocated_for_size - size){
839 allocated_for_size= byte_delta + (int64_t)size;
840 goto need_realloc;
841 }
842 ist->is_start=0;
843
844 memset(input_tmp, 0, byte_delta);
845 memcpy(input_tmp + byte_delta, buf, size);
846 buf= input_tmp;
847 size += byte_delta;
848 if(verbose > 2)
849 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
850 }
851 }else if(audio_sync_method>1){
852 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
853 av_assert0(ost->audio_resample);
854 if(verbose > 2)
855 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
856 // 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));
857 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
858 }
859 }
860 }else
861 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
862 - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
863
864 if (ost->audio_resample) {
865 buftmp = audio_buf;
866 size_out = audio_resample(ost->resample,
867 (short *)buftmp, (short *)buf,
868 size / (dec->channels * isize));
869 size_out = size_out * enc->channels * osize;
870 } else {
871 buftmp = buf;
872 size_out = size;
873 }
874
875 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
876 const void *ibuf[6]= {buftmp};
877 void *obuf[6]= {audio_buf};
878 int istride[6]= {isize};
879 int ostride[6]= {osize};
880 int len= size_out/istride[0];
881 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
882 printf("av_audio_convert() failed\n");
883 if (exit_on_error)
884 exit_program(1);
885 return;
886 }
887 buftmp = audio_buf;
888 size_out = len*osize;
889 }
890
891 /* now encode as many frames as possible */
892 if (enc->frame_size > 1) {
893 /* output resampled raw samples */
894 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
895 fprintf(stderr, "av_fifo_realloc2() failed\n");
896 exit_program(1);
897 }
898 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
899
900 frame_bytes = enc->frame_size * osize * enc->channels;
901
902 while (av_fifo_size(ost->fifo) >= frame_bytes) {
903 AVPacket pkt;
904 av_init_packet(&pkt);
905
906 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
907
908 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
909
910 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
911 (short *)audio_buf);
912 if (ret < 0) {
913 fprintf(stderr, "Audio encoding failed\n");
914 exit_program(1);
915 }
916 audio_size += ret;
917 pkt.stream_index= ost->index;
918 pkt.data= audio_out;
919 pkt.size= ret;
920 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
921 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
922 pkt.flags |= AV_PKT_FLAG_KEY;
923 write_frame(s, &pkt, enc, ost->bitstream_filters);
924
925 ost->sync_opts += enc->frame_size;
926 }
927 } else {
928 AVPacket pkt;
929 av_init_packet(&pkt);
930
931 ost->sync_opts += size_out / (osize * enc->channels);
932
933 /* output a pcm frame */
934 /* determine the size of the coded buffer */
935 size_out /= osize;
936 if (coded_bps)
937 size_out = size_out*coded_bps/8;
938
939 if(size_out > audio_out_size){
940 fprintf(stderr, "Internal error, buffer size too small\n");
941 exit_program(1);
942 }
943
944 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
945 ret = avcodec_encode_audio(enc, audio_out, size_out,
946 (short *)buftmp);
947 if (ret < 0) {
948 fprintf(stderr, "Audio encoding failed\n");
949 exit_program(1);
950 }
951 audio_size += ret;
952 pkt.stream_index= ost->index;
953 pkt.data= audio_out;
954 pkt.size= ret;
955 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
956 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
957 pkt.flags |= AV_PKT_FLAG_KEY;
958 write_frame(s, &pkt, enc, ost->bitstream_filters);
959 }
960 }
961
962 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
963 {
964 AVCodecContext *dec;
965 AVPicture *picture2;
966 AVPicture picture_tmp;
967 uint8_t *buf = 0;
968
969 dec = ist->st->codec;
970
971 /* deinterlace : must be done before any resize */
972 if (do_deinterlace) {
973 int size;
974
975 /* create temporary picture */
976 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
977 buf = av_malloc(size);
978 if (!buf)
979 return;
980
981 picture2 = &picture_tmp;
982 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
983
984 if(avpicture_deinterlace(picture2, picture,
985 dec->pix_fmt, dec->width, dec->height) < 0) {
986 /* if error, do not deinterlace */
987 fprintf(stderr, "Deinterlacing failed\n");
988 av_free(buf);
989 buf = NULL;
990 picture2 = picture;
991 }
992 } else {
993 picture2 = picture;
994 }
995
996 if (picture != picture2)
997 *picture = *picture2;
998 *bufp = buf;
999 }
1000
1001 static void do_subtitle_out(AVFormatContext *s,
1002 OutputStream *ost,
1003 InputStream *ist,
1004 AVSubtitle *sub,
1005 int64_t pts)
1006 {
1007 static uint8_t *subtitle_out = NULL;
1008 int subtitle_out_max_size = 1024 * 1024;
1009 int subtitle_out_size, nb, i;
1010 AVCodecContext *enc;
1011 AVPacket pkt;
1012
1013 if (pts == AV_NOPTS_VALUE) {
1014 fprintf(stderr, "Subtitle packets must have a pts\n");
1015 if (exit_on_error)
1016 exit_program(1);
1017 return;
1018 }
1019
1020 enc = ost->st->codec;
1021
1022 if (!subtitle_out) {
1023 subtitle_out = av_malloc(subtitle_out_max_size);
1024 }
1025
1026 /* Note: DVB subtitle need one packet to draw them and one other
1027 packet to clear them */
1028 /* XXX: signal it in the codec context ? */
1029 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1030 nb = 2;
1031 else
1032 nb = 1;
1033
1034 for(i = 0; i < nb; i++) {
1035 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1036 // start_display_time is required to be 0
1037 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1038 sub->end_display_time -= sub->start_display_time;
1039 sub->start_display_time = 0;
1040 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1041 subtitle_out_max_size, sub);
1042 if (subtitle_out_size < 0) {
1043 fprintf(stderr, "Subtitle encoding failed\n");
1044 exit_program(1);
1045 }
1046
1047 av_init_packet(&pkt);
1048 pkt.stream_index = ost->index;
1049 pkt.data = subtitle_out;
1050 pkt.size = subtitle_out_size;
1051 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1052 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1053 /* XXX: the pts correction is handled here. Maybe handling
1054 it in the codec would be better */
1055 if (i == 0)
1056 pkt.pts += 90 * sub->start_display_time;
1057 else
1058 pkt.pts += 90 * sub->end_display_time;
1059 }
1060 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1061 }
1062 }
1063
1064 static int bit_buffer_size= 1024*256;
1065 static uint8_t *bit_buffer= NULL;
1066
1067 static void do_video_resample(OutputStream *ost,
1068 InputStream *ist,
1069 AVFrame *in_picture,
1070 AVFrame **out_picture)
1071 {
1072 int resample_changed = 0;
1073 AVCodecContext *dec = ist->st->codec;
1074 *out_picture = in_picture;
1075
1076 resample_changed = ost->resample_width != dec->width ||
1077 ost->resample_height != dec->height ||
1078 ost->resample_pix_fmt != dec->pix_fmt;
1079
1080 if (resample_changed) {
1081 av_log(NULL, AV_LOG_INFO,
1082 "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1083 ist->file_index, ist->st->index,
1084 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1085 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt));
1086 if(!ost->video_resample)
1087 ost->video_resample = 1;
1088 }
1089
1090 #if !CONFIG_AVFILTER
1091 if (ost->video_resample) {
1092 *out_picture = &ost->pict_tmp;
1093 if (resample_changed) {
1094 /* initialize a new scaler context */
1095 sws_freeContext(ost->img_resample_ctx);
1096 ost->img_resample_ctx = sws_getContext(
1097 ist->st->codec->width,
1098 ist->st->codec->height,
1099 ist->st->codec->pix_fmt,
1100 ost->st->codec->width,
1101 ost->st->codec->height,
1102 ost->st->codec->pix_fmt,
1103 ost->sws_flags, NULL, NULL, NULL);
1104 if (ost->img_resample_ctx == NULL) {
1105 fprintf(stderr, "Cannot get resampling context\n");
1106 exit_program(1);
1107 }
1108 }
1109 sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1110 0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1111 }
1112 #else
1113 if (resample_changed) {
1114 avfilter_graph_free(&ost->graph);
1115 if (configure_video_filters(ist, ost)) {
1116 fprintf(stderr, "Error reinitializing filters!\n");
1117 exit_program(1);
1118 }
1119 }
1120 #endif
1121 if (resample_changed) {
1122 ost->resample_width = dec->width;
1123 ost->resample_height = dec->height;
1124 ost->resample_pix_fmt = dec->pix_fmt;
1125 }
1126 }
1127
1128
1129 static void do_video_out(AVFormatContext *s,
1130 OutputStream *ost,
1131 InputStream *ist,
1132 AVFrame *in_picture,
1133 int *frame_size, float quality)
1134 {
1135 int nb_frames, i, ret, format_video_sync;
1136 AVFrame *final_picture;
1137 AVCodecContext *enc;
1138 double sync_ipts;
1139
1140 enc = ost->st->codec;
1141
1142 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1143
1144 /* by default, we output a single frame */
1145 nb_frames = 1;
1146
1147 *frame_size = 0;
1148
1149 format_video_sync = video_sync_method;
1150 if (format_video_sync < 0)
1151 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1152
1153 if (format_video_sync) {
1154 double vdelta = sync_ipts - ost->sync_opts;
1155 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1156 if (vdelta < -1.1)
1157 nb_frames = 0;
1158 else if (format_video_sync == 2) {
1159 if(vdelta<=-0.6){
1160 nb_frames=0;
1161 }else if(vdelta>0.6)
1162 ost->sync_opts= lrintf(sync_ipts);
1163 }else if (vdelta > 1.1)
1164 nb_frames = lrintf(vdelta);
1165 //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);
1166 if (nb_frames == 0){
1167 ++nb_frames_drop;
1168 if (verbose>2)
1169 fprintf(stderr, "*** drop!\n");
1170 }else if (nb_frames > 1) {
1171 nb_frames_dup += nb_frames - 1;
1172 if (verbose>2)
1173 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1174 }
1175 }else
1176 ost->sync_opts= lrintf(sync_ipts);
1177
1178 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
1179 if (nb_frames <= 0)
1180 return;
1181
1182 do_video_resample(ost, ist, in_picture, &final_picture);
1183
1184 /* duplicates frame if needed */
1185 for(i=0;i<nb_frames;i++) {
1186 AVPacket pkt;
1187 av_init_packet(&pkt);
1188 pkt.stream_index= ost->index;
1189
1190 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1191 /* raw pictures are written as AVPicture structure to
1192 avoid any copies. We support temporarily the older
1193 method. */
1194 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1195 enc->coded_frame->top_field_first = in_picture->top_field_first;
1196 pkt.data= (uint8_t *)final_picture;
1197 pkt.size= sizeof(AVPicture);
1198 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1199 pkt.flags |= AV_PKT_FLAG_KEY;
1200
1201 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1202 } else {
1203 AVFrame big_picture;
1204
1205 big_picture= *final_picture;
1206 /* better than nothing: use input picture interlaced
1207 settings */
1208 big_picture.interlaced_frame = in_picture->interlaced_frame;
1209 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1210 if(top_field_first == -1)
1211 big_picture.top_field_first = in_picture->top_field_first;
1212 else
1213 big_picture.top_field_first = top_field_first;
1214 }
1215
1216 /* handles same_quant here. This is not correct because it may
1217 not be a global option */
1218 big_picture.quality = quality;
1219 if(!me_threshold)
1220 big_picture.pict_type = 0;
1221 // big_picture.pts = AV_NOPTS_VALUE;
1222 big_picture.pts= ost->sync_opts;
1223 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1224 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1225 if (ost->forced_kf_index < ost->forced_kf_count &&
1226 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1227 big_picture.pict_type = AV_PICTURE_TYPE_I;
1228 ost->forced_kf_index++;
1229 }
1230 ret = avcodec_encode_video(enc,
1231 bit_buffer, bit_buffer_size,
1232 &big_picture);
1233 if (ret < 0) {
1234 fprintf(stderr, "Video encoding failed\n");
1235 exit_program(1);
1236 }
1237
1238 if(ret>0){
1239 pkt.data= bit_buffer;
1240 pkt.size= ret;
1241 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1242 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1243 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1244 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1245 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1246
1247 if(enc->coded_frame->key_frame)
1248 pkt.flags |= AV_PKT_FLAG_KEY;
1249 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1250 *frame_size = ret;
1251 video_size += ret;
1252 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1253 // enc->frame_number-1, ret, enc->pict_type);
1254 /* if two pass, output log */
1255 if (ost->logfile && enc->stats_out) {
1256 fprintf(ost->logfile, "%s", enc->stats_out);
1257 }
1258 }
1259 }
1260 ost->sync_opts++;
1261 ost->frame_number++;
1262 }
1263 }
1264
1265 static double psnr(double d){
1266 return -10.0*log(d)/log(10.0);
1267 }
1268
1269 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1270 int frame_size)
1271 {
1272 AVCodecContext *enc;
1273 int frame_number;
1274 double ti1, bitrate, avg_bitrate;
1275
1276 /* this is executed just the first time do_video_stats is called */
1277 if (!vstats_file) {
1278 vstats_file = fopen(vstats_filename, "w");
1279 if (!vstats_file) {
1280 perror("fopen");
1281 exit_program(1);
1282 }
1283 }
1284
1285 enc = ost->st->codec;
1286 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1287 frame_number = ost->frame_number;
1288 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1289 if (enc->flags&CODEC_FLAG_PSNR)
1290 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1291
1292 fprintf(vstats_file,"f_size= %6d ", frame_size);
1293 /* compute pts value */
1294 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1295 if (ti1 < 0.01)
1296 ti1 = 0.01;
1297
1298 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1299 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1300 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1301 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1302 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1303 }
1304 }
1305
1306 static void print_report(OutputFile *output_files,
1307 OutputStream *ost_table, int nb_ostreams,
1308 int is_last_report, int64_t timer_start)
1309 {
1310 char buf[1024];
1311 OutputStream *ost;
1312 AVFormatContext *oc;
1313 int64_t total_size;
1314 AVCodecContext *enc;
1315 int frame_number, vid, i;
1316 double bitrate, ti1, pts;
1317 static int64_t last_time = -1;
1318 static int qp_histogram[52];
1319
1320 if (!is_last_report) {
1321 int64_t cur_time;
1322 /* display the report every 0.5 seconds */
1323 cur_time = av_gettime();
1324 if (last_time == -1) {
1325 last_time = cur_time;
1326 return;
1327 }
1328 if ((cur_time - last_time) < 500000)
1329 return;
1330 last_time = cur_time;
1331 }
1332
1333
1334 oc = output_files[0].ctx;
1335
1336 total_size = avio_size(oc->pb);
1337 if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1338 total_size= avio_tell(oc->pb);
1339
1340 buf[0] = '\0';
1341 ti1 = 1e10;
1342 vid = 0;
1343 for(i=0;i<nb_ostreams;i++) {
1344 float q = -1;
1345 ost = &ost_table[i];
1346 enc = ost->st->codec;
1347 if (!ost->st->stream_copy && enc->coded_frame)
1348 q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1349 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1350 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1351 }
1352 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1353 float t = (av_gettime()-timer_start) / 1000000.0;
1354
1355 frame_number = ost->frame_number;
1356 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1357 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1358 if(is_last_report)
1359 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1360 if(qp_hist){
1361 int j;
1362 int qp = lrintf(q);
1363 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1364 qp_histogram[qp]++;
1365 for(j=0; j<32; j++)
1366 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1367 }
1368 if (enc->flags&CODEC_FLAG_PSNR){
1369 int j;
1370 double error, error_sum=0;
1371 double scale, scale_sum=0;
1372 char type[3]= {'Y','U','V'};
1373 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1374 for(j=0; j<3; j++){
1375 if(is_last_report){
1376 error= enc->error[j];
1377 scale= enc->width*enc->height*255.0*255.0*frame_number;
1378 }else{
1379 error= enc->coded_frame->error[j];
1380 scale= enc->width*enc->height*255.0*255.0;
1381 }
1382 if(j) scale/=4;
1383 error_sum += error;
1384 scale_sum += scale;
1385 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1386 }
1387 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1388 }
1389 vid = 1;
1390 }
1391 /* compute min output value */
1392 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1393 if ((pts < ti1) && (pts > 0))
1394 ti1 = pts;
1395 }
1396 if (ti1 < 0.01)
1397 ti1 = 0.01;
1398
1399 if (verbose > 0 || is_last_report) {
1400 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1401
1402 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1403 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1404 (double)total_size / 1024, ti1, bitrate);
1405
1406 if (nb_frames_dup || nb_frames_drop)
1407 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1408 nb_frames_dup, nb_frames_drop);
1409
1410 if (verbose >= 0)
1411 fprintf(stderr, "%s \r", buf);
1412
1413 fflush(stderr);
1414 }
1415
1416 if (is_last_report && verbose >= 0){
1417 int64_t raw= audio_size + video_size + extra_size;
1418 fprintf(stderr, "\n");
1419 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1420 video_size/1024.0,
1421 audio_size/1024.0,
1422 extra_size/1024.0,
1423 100.0*(total_size - raw)/raw
1424 );
1425 }
1426 }
1427
1428 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1429 {
1430 int fill_char = 0x00;
1431 if (sample_fmt == AV_SAMPLE_FMT_U8)
1432 fill_char = 0x80;
1433 memset(buf, fill_char, size);
1434 }
1435
1436 static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
1437 {
1438 int i, ret;
1439
1440 for (i = 0; i < nb_ostreams; i++) {
1441 OutputStream *ost = &ost_table[i];
1442 AVCodecContext *enc = ost->st->codec;
1443 AVFormatContext *os = output_files[ost->file_index].ctx;
1444
1445 if (!ost->encoding_needed)
1446 continue;
1447
1448 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1449 continue;
1450 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1451 continue;
1452
1453 for(;;) {
1454 AVPacket pkt;
1455 int fifo_bytes;
1456 av_init_packet(&pkt);
1457 pkt.stream_index= ost->index;
1458
1459 switch (ost->st->codec->codec_type) {
1460 case AVMEDIA_TYPE_AUDIO:
1461 fifo_bytes = av_fifo_size(ost->fifo);
1462 ret = 0;
1463 /* encode any samples remaining in fifo */
1464 if (fifo_bytes > 0) {
1465 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1466 int fs_tmp = enc->frame_size;
1467
1468 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1469 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1470 enc->frame_size = fifo_bytes / (osize * enc->channels);
1471 } else { /* pad */
1472 int frame_bytes = enc->frame_size*osize*enc->channels;
1473 if (allocated_audio_buf_size < frame_bytes)
1474 exit_program(1);
1475 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1476 }
1477
1478 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1479 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1480 ost->st->time_base.num, enc->sample_rate);
1481 enc->frame_size = fs_tmp;
1482 }
1483 if (ret <= 0) {
1484 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1485 }
1486 if (ret < 0) {
1487 fprintf(stderr, "Audio encoding failed\n");
1488 exit_program(1);
1489 }
1490 audio_size += ret;
1491 pkt.flags |= AV_PKT_FLAG_KEY;
1492 break;
1493 case AVMEDIA_TYPE_VIDEO:
1494 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1495 if (ret < 0) {
1496 fprintf(stderr, "Video encoding failed\n");
1497 exit_program(1);
1498 }
1499 video_size += ret;
1500 if(enc->coded_frame && enc->coded_frame->key_frame)
1501 pkt.flags |= AV_PKT_FLAG_KEY;
1502 if (ost->logfile && enc->stats_out) {
1503 fprintf(ost->logfile, "%s", enc->stats_out);
1504 }
1505 break;
1506 default:
1507 ret=-1;
1508 }
1509
1510 if (ret <= 0)
1511 break;
1512 pkt.data = bit_buffer;
1513 pkt.size = ret;
1514 if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1515 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1516 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1517 }
1518 }
1519 }
1520
1521 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1522 static int output_packet(InputStream *ist, int ist_index,
1523 OutputStream *ost_table, int nb_ostreams,
1524 const AVPacket *pkt)
1525 {
1526 AVFormatContext *os;
1527 OutputStream *ost;
1528 int ret, i;
1529 int got_output;
1530 AVFrame picture;
1531 void *buffer_to_free = NULL;
1532 static unsigned int samples_size= 0;
1533 AVSubtitle subtitle, *subtitle_to_free;
1534 int64_t pkt_pts = AV_NOPTS_VALUE;
1535 #if CONFIG_AVFILTER
1536 int frame_available;
1537 #endif
1538 float quality;
1539
1540 AVPacket avpkt;
1541 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1542
1543 if(ist->next_pts == AV_NOPTS_VALUE)
1544 ist->next_pts= ist->pts;
1545
1546 if (pkt == NULL) {
1547 /* EOF handling */
1548 av_init_packet(&avpkt);
1549 avpkt.data = NULL;
1550 avpkt.size = 0;
1551 goto handle_eof;
1552 } else {
1553 avpkt = *pkt;
1554 }
1555
1556 if(pkt->dts != AV_NOPTS_VALUE)
1557 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1558 if(pkt->pts != AV_NOPTS_VALUE)
1559 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1560
1561 //while we have more to decode or while the decoder did output something on EOF
1562 while (avpkt.size > 0 || (!pkt && got_output)) {
1563 uint8_t *data_buf, *decoded_data_buf;
1564 int data_size, decoded_data_size;
1565 handle_eof:
1566 ist->pts= ist->next_pts;
1567
1568 if(avpkt.size && avpkt.size != pkt->size &&
1569 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1570 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1571 ist->showed_multi_packet_warning=1;
1572 }
1573
1574 /* decode the packet if needed */
1575 decoded_data_buf = NULL; /* fail safe */
1576 decoded_data_size= 0;
1577 data_buf = avpkt.data;
1578 data_size = avpkt.size;
1579 subtitle_to_free = NULL;
1580 if (ist->decoding_needed) {
1581 switch(ist->st->codec->codec_type) {
1582 case AVMEDIA_TYPE_AUDIO:{
1583 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1584 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1585 av_free(samples);
1586 samples= av_malloc(samples_size);
1587 }
1588 decoded_data_size= samples_size;
1589 /* XXX: could avoid copy if PCM 16 bits with same
1590 endianness as CPU */
1591 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1592 &avpkt);
1593 if (ret < 0)
1594 return ret;
1595 avpkt.data += ret;
1596 avpkt.size -= ret;
1597 data_size = ret;
1598 got_output = decoded_data_size > 0;
1599 /* Some bug in mpeg audio decoder gives */
1600 /* decoded_data_size < 0, it seems they are overflows */
1601 if (!got_output) {
1602 /* no audio frame */
1603 continue;
1604 }
1605 decoded_data_buf = (uint8_t *)samples;
1606 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1607 (ist->st->codec->sample_rate * ist->st->codec->channels);
1608 break;}
1609 case AVMEDIA_TYPE_VIDEO:
1610 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1611 /* XXX: allocate picture correctly */
1612 avcodec_get_frame_defaults(&picture);
1613 avpkt.pts = pkt_pts;
1614 avpkt.dts = ist->pts;
1615 pkt_pts = AV_NOPTS_VALUE;
1616
1617 ret = avcodec_decode_video2(ist->st->codec,
1618 &picture, &got_output, &avpkt);
1619 quality = same_quant ? picture.quality : 0;
1620 if (ret < 0)
1621 return ret;
1622 if (!got_output) {
1623 /* no picture yet */
1624 goto discard_packet;
1625 }
1626 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1627 if (ist->st->codec->time_base.num != 0) {
1628 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1629 ist->next_pts += ((int64_t)AV_TIME_BASE *
1630 ist->st->codec->time_base.num * ticks) /
1631 ist->st->codec->time_base.den;
1632 }
1633 avpkt.size = 0;
1634 buffer_to_free = NULL;
1635 pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1636 break;
1637 case AVMEDIA_TYPE_SUBTITLE:
1638 ret = avcodec_decode_subtitle2(ist->st->codec,
1639 &subtitle, &got_output, &avpkt);
1640 if (ret < 0)
1641 return ret;
1642 if (!got_output) {
1643 goto discard_packet;
1644 }
1645 subtitle_to_free = &subtitle;
1646 avpkt.size = 0;
1647 break;
1648 default:
1649 return -1;
1650 }
1651 } else {
1652 switch(ist->st->codec->codec_type) {
1653 case AVMEDIA_TYPE_AUDIO:
1654 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1655 ist->st->codec->sample_rate;
1656 break;
1657 case AVMEDIA_TYPE_VIDEO:
1658 if (ist->st->codec->time_base.num != 0) {
1659 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1660 ist->next_pts += ((int64_t)AV_TIME_BASE *
1661 ist->st->codec->time_base.num * ticks) /
1662 ist->st->codec->time_base.den;
1663 }
1664 break;
1665 }
1666 avpkt.size = 0;
1667 }
1668
1669 // preprocess audio (volume)
1670 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1671 if (audio_volume != 256) {
1672 short *volp;
1673 volp = samples;
1674 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1675 int v = ((*volp) * audio_volume + 128) >> 8;
1676 *volp++ = av_clip_int16(v);
1677 }
1678 }
1679 }
1680
1681 /* frame rate emulation */
1682 if (input_files[ist->file_index].rate_emu) {
1683 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1684 int64_t now = av_gettime() - ist->start;
1685 if (pts > now)
1686 usleep(pts - now);
1687 }
1688 /* if output time reached then transcode raw format,
1689 encode packets and output them */
1690 for (i = 0; i < nb_ostreams; i++) {
1691 OutputFile *of = &output_files[ost_table[i].file_index];
1692 int frame_size;
1693
1694 ost = &ost_table[i];
1695 if (ost->source_index != ist_index)
1696 continue;
1697
1698 if (of->start_time && ist->pts < of->start_time)
1699 continue;
1700
1701 if (of->recording_time != INT64_MAX &&
1702 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1703 (AVRational){1, 1000000}) >= 0) {
1704 ost->is_past_recording_time = 1;
1705 continue;
1706 }
1707
1708 #if CONFIG_AVFILTER
1709 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1710 ost->input_video_filter) {
1711 AVRational sar;
1712 if (ist->st->sample_aspect_ratio.num)
1713 sar = ist->st->sample_aspect_ratio;
1714 else
1715 sar = ist->st->codec->sample_aspect_ratio;
1716 av_vsrc_buffer_add_frame(ost->input_video_filter, &picture, ist->pts, sar);
1717 }
1718 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1719 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1720 while (frame_available) {
1721 AVRational ist_pts_tb;
1722 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1723 get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1724 if (ost->picref)
1725 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1726 #endif
1727 os = output_files[ost->file_index].ctx;
1728
1729 /* set the input output pts pairs */
1730 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1731
1732 if (ost->encoding_needed) {
1733 av_assert0(ist->decoding_needed);
1734 switch(ost->st->codec->codec_type) {
1735 case AVMEDIA_TYPE_AUDIO:
1736 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1737 break;
1738 case AVMEDIA_TYPE_VIDEO:
1739 #if CONFIG_AVFILTER
1740 if (ost->picref->video && !ost->frame_aspect_ratio)
1741 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1742 #endif
1743 do_video_out(os, ost, ist, &picture, &frame_size,
1744 same_quant ? quality : ost->st->codec->global_quality);
1745 if (vstats_filename && frame_size)
1746 do_video_stats(os, ost, frame_size);
1747 break;
1748 case AVMEDIA_TYPE_SUBTITLE:
1749 do_subtitle_out(os, ost, ist, &subtitle,
1750 pkt->pts);
1751 break;
1752 default:
1753 abort();
1754 }
1755 } else {
1756 AVFrame avframe; //FIXME/XXX remove this
1757 AVPacket opkt;
1758 int64_t ost_tb_start_time= av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1759
1760 av_init_packet(&opkt);
1761
1762 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1763 #if !CONFIG_AVFILTER
1764 continue;
1765 #else
1766 goto cont;
1767 #endif
1768
1769 /* no reencoding needed : output the packet directly */
1770 /* force the input stream PTS */
1771
1772 avcodec_get_frame_defaults(&avframe);
1773 ost->st->codec->coded_frame= &avframe;
1774 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1775
1776 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1777 audio_size += data_size;
1778 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1779 video_size += data_size;
1780 ost->sync_opts++;
1781 }
1782
1783 opkt.stream_index= ost->index;
1784 if(pkt->pts != AV_NOPTS_VALUE)
1785 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1786 else
1787 opkt.pts= AV_NOPTS_VALUE;
1788
1789 if (pkt->dts == AV_NOPTS_VALUE)
1790 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1791 else
1792 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1793 opkt.dts -= ost_tb_start_time;
1794
1795 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1796 opkt.flags= pkt->flags;
1797
1798 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1799 if( ost->st->codec->codec_id != CODEC_ID_H264
1800 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1801 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1802 ) {
1803 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1804 opkt.destruct= av_destruct_packet;
1805 } else {
1806 opkt.data = data_buf;
1807 opkt.size = data_size;
1808 }
1809
1810 write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1811 ost->st->codec->frame_number++;
1812 ost->frame_number++;
1813 av_free_packet(&opkt);
1814 }
1815 #if CONFIG_AVFILTER
1816 cont:
1817 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1818 ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1819 if (ost->picref)
1820 avfilter_unref_buffer(ost->picref);
1821 }
1822 #endif
1823 }
1824
1825 av_free(buffer_to_free);
1826 /* XXX: allocate the subtitles in the codec ? */
1827 if (subtitle_to_free) {
1828 avsubtitle_free(subtitle_to_free);
1829 subtitle_to_free = NULL;
1830 }
1831 }
1832 discard_packet:
1833
1834 return 0;
1835 }
1836
1837 static void print_sdp(OutputFile *output_files, int n)
1838 {
1839 char sdp[2048];
1840 int i;
1841 AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
1842
1843 if (!avc)
1844 exit_program(1);
1845 for (i = 0; i < n; i++)
1846 avc[i] = output_files[i].ctx;
1847
1848 av_sdp_create(avc, n, sdp, sizeof(sdp));
1849 printf("SDP:\n%s\n", sdp);
1850 fflush(stdout);
1851 av_freep(&avc);
1852 }
1853
1854 static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
1855 char *error, int error_len)
1856 {
1857 int i;
1858 InputStream *ist = &input_streams[ist_index];
1859 if (ist->decoding_needed) {
1860 AVCodec *codec = ist->dec;
1861 if (!codec) {
1862 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d.%d",
1863 ist->st->codec->codec_id, ist->file_index, ist->st->index);
1864 return AVERROR(EINVAL);
1865 }
1866
1867 /* update requested sample format for the decoder based on the
1868 corresponding encoder sample format */
1869 for (i = 0; i < nb_output_streams; i++) {
1870 OutputStream *ost = &output_streams[i];
1871 if (ost->source_index == ist_index) {
1872 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
1873 break;
1874 }
1875 }
1876
1877 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
1878 snprintf(error, error_len, "Error while opening decoder for input stream #%d.%d",
1879 ist->file_index, ist->st->index);
1880 return AVERROR(EINVAL);
1881 }
1882 assert_codec_experimental(ist->st->codec, 0);
1883 assert_avoptions(ist->opts);
1884 }
1885
1886 ist->pts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames*AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
1887 ist->next_pts = AV_NOPTS_VALUE;
1888 init_pts_correction(&ist->pts_ctx);
1889 ist->is_start = 1;
1890
1891 return 0;
1892 }
1893
1894 static int transcode_init(OutputFile *output_files,
1895 int nb_output_files,
1896 InputFile *input_files,
1897 int nb_input_files)
1898 {
1899 int ret = 0, i, j;
1900 AVFormatContext *os;
1901 AVCodecContext *codec, *icodec;
1902 OutputStream *ost;
1903 InputStream *ist;
1904 char error[1024];
1905 int want_sdp = 1;
1906
1907 /* init framerate emulation */
1908 for (i = 0; i < nb_input_files; i++) {
1909 InputFile *ifile = &input_files[i];
1910 if (ifile->rate_emu)
1911 for (j = 0; j < ifile->nb_streams; j++)
1912 input_streams[j + ifile->ist_index].start = av_gettime();
1913 }
1914
1915 /* output stream init */
1916 for(i=0;i<nb_output_files;i++) {
1917 os = output_files[i].ctx;
1918 if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1919 av_dump_format(os, i, os->filename, 1);
1920 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1921 return AVERROR(EINVAL);
1922 }
1923 }
1924
1925 /* for each output stream, we compute the right encoding parameters */
1926 for (i = 0; i < nb_output_streams; i++) {
1927 ost = &output_streams[i];
1928 os = output_files[ost->file_index].ctx;
1929 ist = &input_streams[ost->source_index];
1930
1931 codec = ost->st->codec;
1932 icodec = ist->st->codec;
1933
1934 ost->st->disposition = ist->st->disposition;
1935 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1936 codec->chroma_sample_location = icodec->chroma_sample_location;
1937
1938 if (ost->st->stream_copy) {
1939 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1940
1941 if (extra_size > INT_MAX) {
1942 return AVERROR(EINVAL);
1943 }
1944
1945 /* if stream_copy is selected, no need to decode or encode */
1946 codec->codec_id = icodec->codec_id;
1947 codec->codec_type = icodec->codec_type;
1948
1949 if(!codec->codec_tag){
1950 if( !os->oformat->codec_tag
1951 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1952 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1953 codec->codec_tag = icodec->codec_tag;
1954 }
1955
1956 codec->bit_rate = icodec->bit_rate;
1957 codec->rc_max_rate = icodec->rc_max_rate;
1958 codec->rc_buffer_size = icodec->rc_buffer_size;
1959 codec->extradata= av_mallocz(extra_size);
1960 if (!codec->extradata) {
1961 return AVERROR(ENOMEM);
1962 }
1963 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1964 codec->extradata_size= icodec->extradata_size;
1965 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){
1966 codec->time_base = icodec->time_base;
1967 codec->time_base.num *= icodec->ticks_per_frame;
1968 av_reduce(&codec->time_base.num, &codec->time_base.den,
1969 codec->time_base.num, codec->time_base.den, INT_MAX);
1970 }else
1971 codec->time_base = ist->st->time_base;
1972 switch(codec->codec_type) {
1973 case AVMEDIA_TYPE_AUDIO:
1974 if(audio_volume != 256) {
1975 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1976 exit_program(1);
1977 }
1978 codec->channel_layout = icodec->channel_layout;
1979 codec->sample_rate = icodec->sample_rate;
1980 codec->channels = icodec->channels;
1981 codec->frame_size = icodec->frame_size;
1982 codec->audio_service_type = icodec->audio_service_type;
1983 codec->block_align= icodec->block_align;
1984 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1985 codec->block_align= 0;
1986 if(codec->codec_id == CODEC_ID_AC3)
1987 codec->block_align= 0;
1988 break;
1989 case AVMEDIA_TYPE_VIDEO:
1990 codec->pix_fmt = icodec->pix_fmt;
1991 codec->width = icodec->width;
1992 codec->height = icodec->height;
1993 codec->has_b_frames = icodec->has_b_frames;
1994 if (!codec->sample_aspect_ratio.num) {
1995 codec->sample_aspect_ratio =
1996 ost->st->sample_aspect_ratio =
1997 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
1998 ist->st->codec->sample_aspect_ratio.num ?
1999 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2000 }
2001 break;
2002 case AVMEDIA_TYPE_SUBTITLE:
2003 codec->width = icodec->width;
2004 codec->height = icodec->height;
2005 break;
2006 case AVMEDIA_TYPE_DATA:
2007 break;
2008 default:
2009 abort();
2010 }
2011 } else {
2012 if (!ost->enc)
2013 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2014 switch(codec->codec_type) {
2015 case AVMEDIA_TYPE_AUDIO:
2016 ost->fifo= av_fifo_alloc(1024);
2017 if (!ost->fifo) {
2018 return AVERROR(ENOMEM);
2019 }
2020 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2021 if (!codec->sample_rate) {
2022 codec->sample_rate = icodec->sample_rate;
2023 if (icodec->lowres)
2024 codec->sample_rate >>= icodec->lowres;
2025 }
2026 choose_sample_rate(ost->st, ost->enc);
2027 codec->time_base = (AVRational){1, codec->sample_rate};
2028 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2029 codec->sample_fmt = icodec->sample_fmt;
2030 choose_sample_fmt(ost->st, ost->enc);
2031 if (!codec->channels)
2032 codec->channels = icodec->channels;
2033 codec->channel_layout = icodec->channel_layout;
2034 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2035 codec->channel_layout = 0;
2036 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2037 icodec->request_channels = codec->channels;
2038 ist->decoding_needed = 1;
2039 ost->encoding_needed = 1;
2040 ost->resample_sample_fmt = icodec->sample_fmt;
2041 ost->resample_sample_rate = icodec->sample_rate;
2042 ost->resample_channels = icodec->channels;
2043 break;
2044 case AVMEDIA_TYPE_VIDEO:
2045 if (codec->pix_fmt == PIX_FMT_NONE)
2046 codec->pix_fmt = icodec->pix_fmt;
2047 choose_pixel_fmt(ost->st, ost->enc);
2048
2049 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2050 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2051 exit_program(1);
2052 }
2053
2054 if (!codec->width || !codec->height) {
2055 codec->width = icodec->width;
2056 codec->height = icodec->height;
2057 }
2058
2059 ost->video_resample = codec->width != icodec->width ||
2060 codec->height != icodec->height ||
2061 codec->pix_fmt != icodec->pix_fmt;
2062 if (ost->video_resample) {
2063 #if !CONFIG_AVFILTER
2064 avcodec_get_frame_defaults(&ost->pict_tmp);
2065 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2066 codec->width, codec->height)) {
2067 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2068 exit_program(1);
2069 }
2070 ost->img_resample_ctx = sws_getContext(
2071 icodec->width,
2072 icodec->height,
2073 icodec->pix_fmt,
2074 codec->width,
2075 codec->height,
2076 codec->pix_fmt,
2077 ost->sws_flags, NULL, NULL, NULL);
2078 if (ost->img_resample_ctx == NULL) {
2079 fprintf(stderr, "Cannot get resampling context\n");
2080 exit_program(1);
2081 }
2082 #endif
2083 codec->bits_per_raw_sample= 0;
2084 }
2085
2086 ost->resample_height = icodec->height;
2087 ost->resample_width = icodec->width;
2088 ost->resample_pix_fmt= icodec->pix_fmt;
2089 ost->encoding_needed = 1;
2090 ist->decoding_needed = 1;
2091
2092 if (!ost->frame_rate.num)
2093 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2094 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2095 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2096 ost->frame_rate = ost->enc->supported_framerates[idx];
2097 }
2098 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2099
2100 #if CONFIG_AVFILTER
2101 if (configure_video_filters(ist, ost)) {
2102 fprintf(stderr, "Error opening filters!\n");
2103 exit(1);
2104 }
2105 #endif
2106 break;
2107 case AVMEDIA_TYPE_SUBTITLE:
2108 ost->encoding_needed = 1;
2109 ist->decoding_needed = 1;
2110 break;
2111 default:
2112 abort();
2113 break;
2114 }
2115 /* two pass mode */
2116 if (ost->encoding_needed &&
2117 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2118 char logfilename[1024];
2119 FILE *f;
2120
2121 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2122 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2123 i);
2124 if (codec->flags & CODEC_FLAG_PASS1) {
2125 f = fopen(logfilename, "wb");
2126 if (!f) {
2127 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2128 exit_program(1);
2129 }
2130 ost->logfile = f;
2131 } else {
2132 char *logbuffer;
2133 size_t logbuffer_size;
2134 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2135 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2136 exit_program(1);
2137 }
2138 codec->stats_in = logbuffer;
2139 }
2140 }
2141 }
2142 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2143 int size= codec->width * codec->height;
2144 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2145 }
2146 }
2147
2148 if (!bit_buffer)
2149 bit_buffer = av_malloc(bit_buffer_size);
2150 if (!bit_buffer) {
2151 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2152 bit_buffer_size);
2153 return AVERROR(ENOMEM);
2154 }
2155
2156 /* open each encoder */
2157 for (i = 0; i < nb_output_streams; i++) {
2158 ost = &output_streams[i];
2159 if (ost->encoding_needed) {
2160 AVCodec *codec = ost->enc;
2161 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2162 if (!codec) {
2163 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2164 ost->st->codec->codec_id, ost->file_index, ost->index);
2165 ret = AVERROR(EINVAL);
2166 goto dump_format;
2167 }
2168 if (dec->subtitle_header) {
2169 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2170 if (!ost->st->codec->subtitle_header) {
2171 ret = AVERROR(ENOMEM);
2172 goto dump_format;
2173 }
2174 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2175 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2176 }
2177 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2178 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2179 ost->file_index, ost->index);
2180 ret = AVERROR(EINVAL);
2181 goto dump_format;
2182 }
2183 assert_codec_experimental(ost->st->codec, 1);
2184 assert_avoptions(ost->opts);
2185 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2186 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2187 "It takes bits/s as argument, not kbits/s\n");
2188 extra_size += ost->st->codec->extradata_size;
2189 }
2190 }
2191
2192 /* init input streams */
2193 for (i = 0; i < nb_input_streams; i++)
2194 if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0)
2195 goto dump_format;
2196
2197 /* open files and write file headers */
2198 for (i = 0; i < nb_output_files; i++) {
2199 os = output_files[i].ctx;
2200 if (avformat_write_header(os, &output_files[i].opts) < 0) {
2201 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2202 ret = AVERROR(EINVAL);
2203 goto dump_format;
2204 }
2205 assert_avoptions(output_files[i].opts);
2206 if (strcmp(os->oformat->name, "rtp")) {
2207 want_sdp = 0;
2208 }
2209 }
2210
2211 dump_format:
2212 /* dump the file output parameters - cannot be done before in case
2213 of stream copy */
2214 for(i=0;i<nb_output_files;i++) {
2215 av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2216 }
2217
2218 /* dump the stream mapping */
2219 if (verbose >= 0) {
2220 fprintf(stderr, "Stream mapping:\n");
2221 for (i = 0; i < nb_output_streams;i ++) {
2222 ost = &output_streams[i];
2223 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2224 input_streams[ost->source_index].file_index,
2225 input_streams[ost->source_index].st->index,
2226 ost->file_index,
2227 ost->index);
2228 if (ost->sync_ist != &input_streams[ost->source_index])
2229 fprintf(stderr, " [sync #%d.%d]",
2230 ost->sync_ist->file_index,
2231 ost->sync_ist->st->index);
2232 if (ost->st->stream_copy)
2233 fprintf(stderr, " (copy)");
2234 else
2235 fprintf(stderr, " (%s -> %s)", input_streams[ost->source_index].dec ?
2236 input_streams[ost->source_index].dec->name : "?",
2237 ost->enc ? ost->enc->name : "?");
2238 fprintf(stderr, "\n");
2239 }
2240 }
2241
2242 if (ret) {
2243 fprintf(stderr, "%s\n", error);
2244 return ret;
2245 }
2246
2247 if (want_sdp) {
2248 print_sdp(output_files, nb_output_files);
2249 }
2250
2251 return 0;
2252 }
2253
2254 /*
2255 * The following code is the main loop of the file converter
2256 */
2257 static int transcode(OutputFile *output_files,
2258 int nb_output_files,
2259 InputFile *input_files,
2260 int nb_input_files)
2261 {
2262 int ret, i;
2263 AVFormatContext *is, *os;
2264 OutputStream *ost;
2265 InputStream *ist;
2266 uint8_t *no_packet;
2267 int no_packet_count=0;
2268 int64_t timer_start;
2269
2270 if (!(no_packet = av_mallocz(nb_input_files)))
2271 exit_program(1);
2272
2273 ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
2274 if (ret < 0)
2275 goto fail;
2276
2277 if (verbose >= 0)
2278 fprintf(stderr, "Press ctrl-c to stop encoding\n");
2279 term_init();
2280
2281 timer_start = av_gettime();
2282
2283 for(; received_sigterm == 0;) {
2284 int file_index, ist_index;
2285 AVPacket pkt;
2286 int64_t ipts_min;
2287 double opts_min;
2288
2289 ipts_min = INT64_MAX;
2290 opts_min= 1e100;
2291
2292 /* select the stream that we must read now by looking at the
2293 smallest output pts */
2294 file_index = -1;
2295 for (i = 0; i < nb_output_streams; i++) {
2296 OutputFile *of;
2297 int64_t ipts;
2298 double opts;
2299 ost = &output_streams[i];
2300 of = &output_files[ost->file_index];
2301 os = output_files[ost->file_index].ctx;
2302 ist = &input_streams[ost->source_index];
2303 if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2304 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2305 continue;
2306 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2307 ipts = ist->pts;
2308 if (!input_files[ist->file_index].eof_reached){
2309 if(ipts < ipts_min) {
2310 ipts_min = ipts;
2311 if(input_sync ) file_index = ist->file_index;
2312 }
2313 if(opts < opts_min) {
2314 opts_min = opts;
2315 if(!input_sync) file_index = ist->file_index;
2316 }
2317 }
2318 if (ost->frame_number >= ost->max_frames) {
2319 int j;
2320 for (j = of->ost_index; j < of->ctx->nb_streams; j++)
2321 output_streams[j].is_past_recording_time = 1;
2322 continue;
2323 }
2324 }
2325 /* if none, if is finished */
2326 if (file_index < 0) {
2327 if(no_packet_count){
2328 no_packet_count=0;
2329 memset(no_packet, 0, nb_input_files);
2330 usleep(10000);
2331 continue;
2332 }
2333 break;
2334 }
2335
2336 /* read a frame from it and output it in the fifo */
2337 is = input_files[file_index].ctx;
2338 ret= av_read_frame(is, &pkt);
2339 if(ret == AVERROR(EAGAIN)){
2340 no_packet[file_index]=1;
2341 no_packet_count++;
2342 continue;
2343 }
2344 if (ret < 0) {
2345 input_files[file_index].eof_reached = 1;
2346 if (opt_shortest)
2347 break;
2348 else
2349 continue;
2350 }
2351
2352 no_packet_count=0;
2353 memset(no_packet, 0, nb_input_files);
2354
2355 if (do_pkt_dump) {
2356 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2357 is->streams[pkt.stream_index]);
2358 }
2359 /* the following test is needed in case new streams appear
2360 dynamically in stream : we ignore them */
2361 if (pkt.stream_index >= input_files[file_index].nb_streams)
2362 goto discard_packet;
2363 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2364 ist = &input_streams[ist_index];
2365 if (ist->discard)
2366 goto discard_packet;
2367
2368 if (pkt.dts != AV_NOPTS_VALUE)
2369 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2370 if (pkt.pts != AV_NOPTS_VALUE)
2371 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2372
2373 if(pkt.pts != AV_NOPTS_VALUE)
2374 pkt.pts *= ist->ts_scale;
2375 if(pkt.dts != AV_NOPTS_VALUE)
2376 pkt.dts *= ist->ts_scale;
2377
2378 // 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);
2379 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2380 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2381 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2382 int64_t delta= pkt_dts - ist->next_pts;
2383 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2384 input_files[ist->file_index].ts_offset -= delta;
2385 if (verbose > 2)
2386 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2387 delta, input_files[ist->file_index].ts_offset);
2388 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2389 if(pkt.pts != AV_NOPTS_VALUE)
2390 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2391 }
2392 }
2393
2394 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2395 if (output_packet(ist, ist_index, output_streams, nb_output_streams, &pkt) < 0) {
2396
2397 if (verbose >= 0)
2398 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2399 ist->file_index, ist->st->index);
2400 if (exit_on_error)
2401 exit_program(1);
2402 av_free_packet(&pkt);
2403 continue;
2404 }
2405
2406 discard_packet:
2407 av_free_packet(&pkt);
2408
2409 /* dump report by using the output first video and audio streams */
2410 print_report(output_files, output_streams, nb_output_streams, 0, timer_start);
2411 }
2412
2413 /* at the end of stream, we must flush the decoder buffers */
2414 for (i = 0; i < nb_input_streams; i++) {
2415 ist = &input_streams[i];
2416 if (ist->decoding_needed) {
2417 output_packet(ist, i, output_streams, nb_output_streams, NULL);
2418 }
2419 }
2420 flush_encoders(output_streams, nb_output_streams);
2421
2422 term_exit();
2423
2424 /* write the trailer if needed and close file */
2425 for(i=0;i<nb_output_files;i++) {
2426 os = output_files[i].ctx;
2427 av_write_trailer(os);
2428 }
2429
2430 /* dump report by using the first video and audio streams */
2431 print_report(output_files, output_streams, nb_output_streams, 1, timer_start);
2432
2433 /* close each encoder */
2434 for (i = 0; i < nb_output_streams; i++) {
2435 ost = &output_streams[i];
2436 if (ost->encoding_needed) {
2437 av_freep(&ost->st->codec->stats_in);
2438 avcodec_close(ost->st->codec);
2439 }
2440 #if CONFIG_AVFILTER
2441 avfilter_graph_free(&ost->graph);
2442 #endif
2443 }
2444
2445 /* close each decoder */
2446 for (i = 0; i < nb_input_streams; i++) {
2447 ist = &input_streams[i];
2448 if (ist->decoding_needed) {
2449 avcodec_close(ist->st->codec);
2450 }
2451 }
2452
2453 /* finished ! */
2454 ret = 0;
2455
2456 fail:
2457 av_freep(&bit_buffer);
2458 av_freep(&no_packet);
2459
2460 if (output_streams) {
2461 for (i = 0; i < nb_output_streams; i++) {
2462 ost = &output_streams[i];
2463 if (ost) {
2464 if (ost->st->stream_copy)
2465 av_freep(&ost->st->codec->extradata);
2466 if (ost->logfile) {
2467 fclose(ost->logfile);
2468 ost->logfile = NULL;
2469 }
2470 av_fifo_free(ost->fifo); /* works even if fifo is not
2471 initialized but set to zero */
2472 av_freep(&ost->st->codec->subtitle_header);
2473 av_free(ost->pict_tmp.data[0]);
2474 av_free(ost->forced_kf_pts);
2475 if (ost->video_resample)
2476 sws_freeContext(ost->img_resample_ctx);
2477 if (ost->resample)
2478 audio_resample_close(ost->resample);
2479 if (ost->reformat_ctx)
2480 av_audio_convert_free(ost->reformat_ctx);
2481 av_dict_free(&ost->opts);
2482 }
2483 }
2484 }
2485 return ret;
2486 }
2487
2488 static int opt_video_rc_override_string(const char *opt, const char *arg)
2489 {
2490 video_rc_override_string = arg;
2491 return 0;
2492 }
2493
2494 static int opt_me_threshold(const char *opt, const char *arg)
2495 {
2496 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2497 return 0;
2498 }
2499
2500 static int opt_verbose(const char *opt, const char *arg)
2501 {
2502 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2503 return 0;
2504 }
2505
2506 static int opt_frame_rate(const char *opt, const char *arg)
2507 {
2508 if (av_parse_video_rate(&frame_rate, arg) < 0) {
2509 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2510 exit_program(1);
2511 }
2512 return 0;
2513 }
2514
2515 static int opt_frame_size(const char *opt, const char *arg)
2516 {
2517 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2518 fprintf(stderr, "Incorrect frame size\n");
2519 return AVERROR(EINVAL);
2520 }
2521 return 0;
2522 }
2523
2524 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2525 {
2526 if (strcmp(arg, "list")) {
2527 frame_pix_fmt = av_get_pix_fmt(arg);
2528 if (frame_pix_fmt == PIX_FMT_NONE) {
2529 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2530 return AVERROR(EINVAL);
2531 }
2532 } else {
2533 show_pix_fmts();
2534 exit_program(0);
2535 }
2536 return 0;
2537 }
2538
2539 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2540 {
2541 int x = 0, y = 0;
2542 double ar = 0;
2543 const char *p;
2544 char *end;
2545
2546 p = strchr(arg, ':');
2547 if (p) {
2548 x = strtol(arg, &end, 10);
2549 if (end == p)
2550 y = strtol(end+1, &end, 10);
2551 if (x > 0 && y > 0)
2552 ar = (double)x / (double)y;
2553 } else
2554 ar = strtod(arg, NULL);
2555
2556 if (!ar) {
2557 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2558 return AVERROR(EINVAL);
2559 }
2560 frame_aspect_ratio = ar;
2561 return 0;
2562 }
2563
2564 static int opt_qscale(const char *opt, const char *arg)
2565 {
2566 video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2567 if (video_qscale == 0) {
2568 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2569 return AVERROR(EINVAL);
2570 }
2571 return 0;
2572 }
2573
2574 static int opt_top_field_first(const char *opt, const char *arg)
2575 {
2576 top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2577 return 0;
2578 }
2579
2580 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2581 {
2582 if (strcmp(arg, "list")) {
2583 audio_sample_fmt = av_get_sample_fmt(arg);
2584 if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2585 av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2586 return AVERROR(EINVAL);
2587 }
2588 } else {
2589 int i;
2590 char fmt_str[128];
2591 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2592 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2593 exit_program(0);
2594 }
2595 return 0;
2596 }
2597
2598 static int opt_audio_rate(const char *opt, const char *arg)
2599 {
2600 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2601 return 0;
2602 }
2603
2604 static int opt_audio_channels(const char *opt, const char *arg)
2605 {
2606 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2607 return 0;
2608 }
2609
2610 static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
2611 {
2612 return parse_option(o, "codec:a", arg, options);
2613 }
2614
2615 static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
2616 {
2617 return parse_option(o, "codec:v", arg, options);
2618 }
2619
2620 static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
2621 {
2622 return parse_option(o, "codec:s", arg, options);
2623 }
2624
2625 static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
2626 {
2627 return parse_option(o, "codec:d", arg, options);
2628 }
2629
2630 static int opt_codec_tag(const char *opt, const char *arg)
2631 {
2632 char *tail;
2633 uint32_t *codec_tag;
2634
2635 codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2636 !strcmp(opt, "vtag") ? &video_codec_tag :
2637 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2638 if (!codec_tag)
2639 return -1;
2640
2641 *codec_tag = strtol(arg, &tail, 0);
2642 if (!tail || *tail)
2643 *codec_tag = AV_RL32(arg);
2644
2645 return 0;
2646 }
2647
2648 static int opt_map(OptionsContext *o, const char *opt, const char *arg)
2649 {
2650 StreamMap *m = NULL;
2651 int i, negative = 0, file_idx;
2652 int sync_file_idx = -1, sync_stream_idx;
2653 char *p, *sync;
2654 char *map;
2655
2656 if (*arg == '-') {
2657 negative = 1;
2658 arg++;
2659 }
2660 map = av_strdup(arg);
2661
2662 /* parse sync stream first, just pick first matching stream */
2663 if (sync = strchr(map, ',')) {
2664 *sync = 0;
2665 sync_file_idx = strtol(sync + 1, &sync, 0);
2666 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2667 av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2668 exit_program(1);
2669 }
2670 if (*sync)
2671 sync++;
2672 for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
2673 if (check_stream_specifier(input_files[sync_file_idx].ctx,
2674 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2675 sync_stream_idx = i;
2676 break;
2677 }
2678 if (i == input_files[sync_file_idx].nb_streams) {
2679 av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2680 "match any streams.\n", arg);
2681 exit_program(1);
2682 }
2683 }
2684
2685
2686 file_idx = strtol(map, &p, 0);
2687 if (file_idx >= nb_input_files || file_idx < 0) {
2688 av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2689 exit_program(1);
2690 }
2691 if (negative)
2692 /* disable some already defined maps */
2693 for (i = 0; i < o->nb_stream_maps; i++) {
2694 m = &o->stream_maps[i];
2695 if (check_stream_specifier(input_files[m->file_index].ctx,
2696 input_files[m->file_index].ctx->streams[m->stream_index],
2697 *p == ':' ? p + 1 : p) > 0)
2698 m->disabled = 1;
2699 }
2700 else
2701 for (i = 0; i < input_files[file_idx].nb_streams; i++) {
2702 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2703 *p == ':' ? p + 1 : p) <= 0)
2704 continue;
2705 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
2706 &o->nb_stream_maps, o->nb_stream_maps + 1);
2707 m = &o->stream_maps[o->nb_stream_maps - 1];
2708
2709 m->file_index = file_idx;
2710 m->stream_index = i;
2711
2712 if (sync_file_idx >= 0) {
2713 m->sync_file_index = sync_file_idx;
2714 m->sync_stream_index = sync_stream_idx;
2715 } else {
2716 m->sync_file_index = file_idx;
2717 m->sync_stream_index = i;
2718 }
2719 }
2720
2721 if (!m) {
2722 av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2723 exit_program(1);
2724 }
2725
2726 av_freep(&map);
2727 return 0;
2728 }
2729
2730 static void parse_meta_type(char *arg, char *type, int *index)
2731 {
2732 if (*arg) {
2733 *type = *(++arg);
2734 switch (*arg) {
2735 case 'g':
2736 break;
2737 case 's':
2738 case 'c':
2739 case 'p':
2740 if (*(++arg) == ':')
2741 *index = strtol(++arg, NULL, 0);
2742 break;
2743 default:
2744 fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2745 exit_program(1);
2746 }
2747 } else
2748 *type = 'g';
2749 }
2750
2751 static int opt_map_metadata(OptionsContext *o, const char *opt, const char *arg)
2752 {
2753 MetadataMap *m, *m1;
2754 char *p;
2755
2756 o->meta_data_maps = grow_array(o->meta_data_maps, sizeof(*o->meta_data_maps),
2757 &o->nb_meta_data_maps, o->nb_meta_data_maps + 1);
2758
2759 m = &o->meta_data_maps[o->nb_meta_data_maps - 1][1];
2760 m->file = strtol(arg, &p, 0);
2761 parse_meta_type(*p ? p + 1 : p, &m->type, &m->index);
2762
2763 m1 = &o->meta_data_maps[o->nb_meta_data_maps - 1][0];
2764 if (p = strchr(opt, ':'))
2765 parse_meta_type(p + 1, &m1->type, &m1->index);
2766 else
2767 m1->type = 'g';
2768
2769 if (m->type == 'g' || m1->type == 'g')
2770 o->metadata_global_manual = 1;
2771 if (m->type == 's' || m1->type == 's')
2772 o->metadata_streams_manual = 1;
2773 if (m->type == 'c' || m1->type == 'c')
2774 o->metadata_chapters_manual = 1;
2775
2776 return 0;
2777 }
2778
2779 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2780 {
2781 const char *codec_string = encoder ? "encoder" : "decoder";
2782 AVCodec *codec;
2783
2784 if(!name)
2785 return CODEC_ID_NONE;
2786 codec = encoder ?
2787 avcodec_find_encoder_by_name(name) :
2788 avcodec_find_decoder_by_name(name);
2789 if(!codec) {
2790 av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2791 exit_program(1);
2792 }
2793 if(codec->type != type) {
2794 av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2795 exit_program(1);
2796 }
2797 return codec->id;
2798 }
2799
2800 static AVCodec *choose_codec(OptionsContext *o, AVFormatContext *s, AVStream *st, enum AVMediaType type)
2801 {
2802 char *codec_name = NULL;
2803
2804 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
2805
2806 if (!codec_name) {
2807 if (s->oformat) {
2808 st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
2809 return avcodec_find_encoder(st->codec->codec_id);
2810 }
2811 } else if (!strcmp(codec_name, "copy"))
2812 st->stream_copy = 1;
2813 else {
2814 st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
2815 return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
2816 avcodec_find_decoder_by_name(codec_name);
2817 }
2818
2819 return NULL;
2820 }
2821
2822 /**
2823 * Add all the streams from the given input file to the global
2824 * list of input streams.
2825 */
2826 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
2827 {
2828 int i, rfps, rfps_base;
2829
2830 for (i = 0; i < ic->nb_streams; i++) {
2831 AVStream *st = ic->streams[i];
2832 AVCodecContext *dec = st->codec;
2833 InputStream *ist;
2834 double scale = 1.0;
2835
2836 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2837 ist = &input_streams[nb_input_streams - 1];
2838 ist->st = st;
2839 ist->file_index = nb_input_files;
2840 ist->discard = 1;
2841 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2842
2843 MATCH_PER_STREAM_OPT(ts_scale, dbl, scale, ic, st);
2844 ist->ts_scale = scale;
2845
2846 ist->dec = choose_codec(o, ic, st, dec->codec_type);
2847 if (!ist->dec)
2848 ist->dec = avcodec_find_decoder(dec->codec_id);
2849
2850 switch (dec->codec_type) {
2851 case AVMEDIA_TYPE_AUDIO:
2852 if(audio_disable)
2853 st->discard= AVDISCARD_ALL;
2854 break;
2855 case AVMEDIA_TYPE_VIDEO:
2856 rfps = ic->streams[i]->r_frame_rate.num;
2857 rfps_base = ic->streams[i]->r_frame_rate.den;
2858 if (dec->lowres) {
2859 dec->flags |= CODEC_FLAG_EMU_EDGE;
2860 dec->height >>= dec->lowres;
2861 dec->width >>= dec->lowres;
2862 }
2863 if(me_threshold)
2864 dec->debug |= FF_DEBUG_MV;
2865
2866 if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
2867
2868 if (verbose >= 0)
2869 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2870 i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
2871
2872 (float)rfps / rfps_base, rfps, rfps_base);
2873 }
2874
2875 if(video_disable)
2876 st->discard= AVDISCARD_ALL;
2877 else if(video_discard)
2878 st->discard= video_discard;
2879 break;
2880 case AVMEDIA_TYPE_DATA:
2881 break;
2882 case AVMEDIA_TYPE_SUBTITLE:
2883 if(subtitle_disable)
2884 st->discard = AVDISCARD_ALL;
2885 break;
2886 case AVMEDIA_TYPE_ATTACHMENT:
2887 case AVMEDIA_TYPE_UNKNOWN:
2888 break;
2889 default:
2890 abort();
2891 }
2892 }
2893 }
2894
2895 static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
2896 {
2897 AVFormatContext *ic;
2898 AVInputFormat *file_iformat = NULL;
2899 int err, i, ret;
2900 int64_t timestamp;
2901 uint8_t buf[128];
2902 AVDictionary **opts;
2903 int orig_nb_streams; // number of streams before avformat_find_stream_info
2904
2905 if (o->format) {
2906 if (!(file_iformat = av_find_input_format(o->format))) {
2907 fprintf(stderr, "Unknown input format: '%s'\n", o->format);
2908 exit_program(1);
2909 }
2910 }
2911
2912 if (!strcmp(filename, "-"))
2913 filename = "pipe:";
2914
2915 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2916 !strcmp(filename, "/dev/stdin");
2917
2918 /* get default parameters from command line */
2919 ic = avformat_alloc_context();
2920 if (!ic) {
2921 print_error(filename, AVERROR(ENOMEM));
2922 exit_program(1);
2923 }
2924 if (audio_sample_rate) {
2925 snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
2926 av_dict_set(&format_opts, "sample_rate", buf, 0);
2927 }
2928 if (audio_channels) {
2929 snprintf(buf, sizeof(buf), "%d", audio_channels);
2930 av_dict_set(&format_opts, "channels", buf, 0);
2931 }
2932 if (frame_rate.num) {
2933 snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
2934 av_dict_set(&format_opts, "framerate", buf, 0);
2935 }
2936 if (frame_width && frame_height) {
2937 snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
2938 av_dict_set(&format_opts, "video_size", buf, 0);
2939 }
2940 if (frame_pix_fmt != PIX_FMT_NONE)
2941 av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
2942
2943 ic->flags |= AVFMT_FLAG_NONBLOCK;
2944
2945 /* open the input file with generic libav function */
2946 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
2947 if (err < 0) {
2948 print_error(filename, err);
2949 exit_program(1);
2950 }
2951 assert_avoptions(format_opts);
2952
2953 if(opt_programid) {
2954 int i, j;
2955 int found=0;
2956 for(i=0; i<ic->nb_streams; i++){
2957 ic->streams[i]->discard= AVDISCARD_ALL;
2958 }
2959 for(i=0; i<ic->nb_programs; i++){
2960 AVProgram *p= ic->programs[i];
2961 if(p->id != opt_programid){
2962 p->discard = AVDISCARD_ALL;
2963 }else{
2964 found=1;
2965 for(j=0; j<p->nb_stream_indexes; j++){
2966 ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
2967 }
2968 }
2969 }
2970 if(!found){
2971 fprintf(stderr, "Specified program id not found\n");
2972 exit_program(1);
2973 }
2974 opt_programid=0;
2975 }
2976
2977 /* apply forced codec ids */
2978 for (i = 0; i < ic->nb_streams; i++)
2979 choose_codec(o, ic, ic->streams[i], ic->streams[i]->codec->codec_type);
2980
2981 /* Set AVCodecContext options for avformat_find_stream_info */
2982 opts = setup_find_stream_info_opts(ic, codec_opts);
2983 orig_nb_streams = ic->nb_streams;
2984
2985 /* If not enough info to get the stream parameters, we decode the
2986 first frames to get it. (used in mpeg case for example) */
2987 ret = avformat_find_stream_info(ic, opts);
2988 if (ret < 0 && verbose >= 0) {
2989 fprintf(stderr, "%s: could not find codec parameters\n", filename);
2990 av_close_input_file(ic);
2991 exit_program(1);
2992 }
2993
2994 timestamp = o->start_time;
2995 /* add the stream start time */
2996 if (ic->start_time != AV_NOPTS_VALUE)
2997 timestamp += ic->start_time;
2998
2999 /* if seeking requested, we execute it */
3000 if (o->start_time != 0) {
3001 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3002 if (ret < 0) {
3003 fprintf(stderr, "%s: could not seek to position %0.3f\n",
3004 filename, (double)timestamp / AV_TIME_BASE);
3005 }
3006 }
3007
3008 /* update the current parameters so that they match the one of the input stream */
3009 add_input_streams(o, ic);
3010
3011 /* dump the file content */
3012 if (verbose >= 0)
3013 av_dump_format(ic, nb_input_files, filename, 0);
3014
3015 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3016 input_files[nb_input_files - 1].ctx = ic;
3017 input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
3018 input_files[nb_input_files - 1].ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
3019 input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
3020
3021 frame_rate = (AVRational){0, 0};
3022 frame_pix_fmt = PIX_FMT_NONE;
3023 frame_height = 0;
3024 frame_width = 0;
3025 audio_sample_rate = 0;
3026 audio_channels = 0;
3027 audio_sample_fmt = AV_SAMPLE_FMT_NONE;
3028
3029 for (i = 0; i < orig_nb_streams; i++)
3030 av_dict_free(&opts[i]);
3031 av_freep(&opts);
3032
3033 reset_options(o);
3034 return 0;
3035 }
3036
3037 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3038 AVCodecContext *avctx)
3039 {
3040 char *p;
3041 int n = 1, i;
3042 int64_t t;
3043
3044 for (p = kf; *p; p++)
3045 if (*p == ',')
3046 n++;
3047 ost->forced_kf_count = n;
3048 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3049 if (!ost->forced_kf_pts) {
3050 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3051 exit_program(1);
3052 }
3053 for (i = 0; i < n; i++) {
3054 p = i ? strchr(p, ',') + 1 : kf;
3055 t = parse_time_or_die("force_key_frames", p, 1);
3056 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3057 }
3058 }
3059
3060 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
3061 {
3062 OutputStream *ost;
3063 AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3064 int idx = oc->nb_streams - 1;
3065 int64_t max_frames = INT64_MAX;
3066 char *bsf = NULL, *next;
3067 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
3068
3069 if (!st) {
3070 av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
3071 exit_program(1);
3072 }
3073
3074 output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3075 nb_output_streams + 1);
3076 ost = &output_streams[nb_output_streams - 1];
3077 ost->file_index = nb_output_files;
3078 ost->index = idx;
3079 ost->st = st;
3080 st->codec->codec_type = type;
3081 ost->enc = choose_codec(o, oc, st, type);
3082 if (ost->enc) {
3083 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3084 }
3085
3086 avcodec_get_context_defaults3(st->codec, ost->enc);
3087 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3088
3089 MATCH_PER_STREAM_OPT(max_frames, i64, max_frames, oc, st);
3090 ost->max_frames = max_frames;
3091
3092 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
3093 while (bsf) {
3094 if (next = strchr(bsf, ','))
3095 *next++ = 0;
3096 if (!(bsfc = av_bitstream_filter_init(bsf))) {
3097 av_log(NULL, AV_LOG_ERROR, "Unknown bitstream filter %s\n", bsf);
3098 exit_program(1);
3099 }
3100 if (bsfc_prev)
3101 bsfc_prev->next = bsfc;
3102 else
3103 ost->bitstream_filters = bsfc;
3104
3105 bsfc_prev = bsfc;
3106 bsf = next;
3107 }
3108
3109 ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
3110 return ost;
3111 }
3112
3113 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
3114 {
3115 AVStream *st;
3116 OutputStream *ost;
3117 AVCodecContext *video_enc;
3118
3119 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
3120 st = ost->st;
3121 if (!st->stream_copy) {
3122 ost->frame_aspect_ratio = frame_aspect_ratio;
3123 frame_aspect_ratio = 0;
3124 #if CONFIG_AVFILTER
3125 ost->avfilter= vfilters;
3126 vfilters = NULL;
3127 #endif
3128 }
3129
3130 video_enc = st->codec;
3131
3132 if(video_codec_tag)
3133 video_enc->codec_tag= video_codec_tag;
3134
3135 if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3136 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3137 }
3138
3139 if (st->stream_copy) {
3140 video_enc->sample_aspect_ratio =
3141 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3142 } else {
3143 const char *p;
3144 int i;
3145
3146 if (frame_rate.num)
3147 ost->frame_rate = frame_rate;
3148
3149 video_enc->width = frame_width;
3150 video_enc->height = frame_height;
3151 video_enc->pix_fmt = frame_pix_fmt;
3152 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3153
3154 if (video_qscale || same_quant) {
3155 video_enc->flags |= CODEC_FLAG_QSCALE;
3156 video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3157 }
3158
3159 if(intra_matrix)
3160 video_enc->intra_matrix = intra_matrix;
3161 if(inter_matrix)
3162 video_enc->inter_matrix = inter_matrix;
3163
3164 p= video_rc_override_string;
3165 for(i=0; p; i++){
3166 int start, end, q;
3167 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3168 if(e!=3){
3169 fprintf(stderr, "error parsing rc_override\n");
3170 exit_program(1);
3171 }
3172 video_enc->rc_override=