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