avconv: remove some redundant temporary variables.
[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 static int video_discard = 0;
101 static int same_quant = 0;
102 static int do_deinterlace = 0;
103 static int intra_dc_precision = 8;
104 static int qp_hist = 0;
105
106 static int file_overwrite = 0;
107 static int do_benchmark = 0;
108 static int do_hex_dump = 0;
109 static int do_pkt_dump = 0;
110 static int do_pass = 0;
111 static char *pass_logfilename_prefix = NULL;
112 static int video_sync_method= -1;
113 static int audio_sync_method= 0;
114 static float audio_drift_threshold= 0.1;
115 static int copy_ts= 0;
116 static int copy_tb;
117 static int opt_shortest = 0;
118 static char *vstats_filename;
119 static FILE *vstats_file;
120
121 static int audio_volume = 256;
122
123 static int exit_on_error = 0;
124 static int using_stdin = 0;
125 static int64_t video_size = 0;
126 static int64_t audio_size = 0;
127 static int64_t extra_size = 0;
128 static int nb_frames_dup = 0;
129 static int nb_frames_drop = 0;
130 static int input_sync;
131
132 static float dts_delta_threshold = 10;
133
134 static int print_stats = 1;
135
136 static uint8_t *audio_buf;
137 static uint8_t *audio_out;
138 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
139
140 static void *samples;
141
142 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
143
144 typedef struct InputStream {
145 int file_index;
146 AVStream *st;
147 int discard; /* true if stream data should be discarded */
148 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
149 AVCodec *dec;
150
151 int64_t start; /* time when read started */
152 int64_t next_pts; /* synthetic pts for cases where pkt.pts
153 is not defined */
154 int64_t pts; /* current pts */
155 PtsCorrectionContext pts_ctx;
156 double ts_scale;
157 int is_start; /* is 1 at the start and after a discontinuity */
158 int showed_multi_packet_warning;
159 AVDictionary *opts;
160 } InputStream;
161
162 typedef struct InputFile {
163 AVFormatContext *ctx;
164 int eof_reached; /* true if eof reached */
165 int ist_index; /* index of first stream in ist_table */
166 int buffer_size; /* current total buffer size */
167 int64_t ts_offset;
168 int nb_streams; /* number of stream that avconv is aware of; may be different
169 from ctx.nb_streams if new streams appear during av_read_frame() */
170 int rate_emu;
171 } InputFile;
172
173 typedef struct OutputStream {
174 int file_index; /* file index */
175 int index; /* stream index in the output file */
176 int source_index; /* InputStream index */
177 AVStream *st; /* stream in the output file */
178 int encoding_needed; /* true if encoding needed for this stream */
179 int frame_number;
180 /* input pts and corresponding output pts
181 for A/V sync */
182 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
183 struct InputStream *sync_ist; /* input stream to sync against */
184 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
185 AVBitStreamFilterContext *bitstream_filters;
186 AVCodec *enc;
187 int64_t max_frames;
188
189 /* video only */
190 int video_resample;
191 AVFrame pict_tmp; /* temporary image for resampling */
192 struct SwsContext *img_resample_ctx; /* for image resampling */
193 int resample_height;
194 int resample_width;
195 int resample_pix_fmt;
196 AVRational frame_rate;
197 int force_fps;
198 int top_field_first;
199
200 float frame_aspect_ratio;
201
202 /* forced key frames */
203 int64_t *forced_kf_pts;
204 int forced_kf_count;
205 int forced_kf_index;
206
207 /* audio only */
208 int audio_resample;
209 ReSampleContext *resample; /* for audio resampling */
210 int resample_sample_fmt;
211 int resample_channels;
212 int resample_sample_rate;
213 int reformat_pair;
214 AVAudioConvert *reformat_ctx;
215 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
216 FILE *logfile;
217
218 #if CONFIG_AVFILTER
219 AVFilterContext *output_video_filter;
220 AVFilterContext *input_video_filter;
221 AVFilterBufferRef *picref;
222 char *avfilter;
223 AVFilterGraph *graph;
224 #endif
225
226 int64_t sws_flags;
227 AVDictionary *opts;
228 int is_past_recording_time;
229 int stream_copy;
230 const char *attachment_filename;
231 int copy_initial_nonkeyframes;
232 } OutputStream;
233
234
235 typedef struct OutputFile {
236 AVFormatContext *ctx;
237 AVDictionary *opts;
238 int ost_index; /* index of the first stream in output_streams */
239 int64_t recording_time; /* desired length of the resulting file in microseconds */
240 int64_t start_time; /* start time in microseconds */
241 uint64_t limit_filesize;
242 } OutputFile;
243
244 static InputStream *input_streams = NULL;
245 static int nb_input_streams = 0;
246 static InputFile *input_files = NULL;
247 static int nb_input_files = 0;
248
249 static OutputStream *output_streams = NULL;
250 static int nb_output_streams = 0;
251 static OutputFile *output_files = NULL;
252 static int nb_output_files = 0;
253
254 typedef struct OptionsContext {
255 /* input/output options */
256 int64_t start_time;
257 const char *format;
258
259 SpecifierOpt *codec_names;
260 int nb_codec_names;
261 SpecifierOpt *audio_channels;
262 int nb_audio_channels;
263 SpecifierOpt *audio_sample_rate;
264 int nb_audio_sample_rate;
265 SpecifierOpt *frame_rates;
266 int nb_frame_rates;
267 SpecifierOpt *frame_sizes;
268 int nb_frame_sizes;
269 SpecifierOpt *frame_pix_fmts;
270 int nb_frame_pix_fmts;
271
272 /* input options */
273 int64_t input_ts_offset;
274 int rate_emu;
275
276 SpecifierOpt *ts_scale;
277 int nb_ts_scale;
278 SpecifierOpt *dump_attachment;
279 int nb_dump_attachment;
280
281 /* output options */
282 StreamMap *stream_maps;
283 int nb_stream_maps;
284 /* first item specifies output metadata, second is input */
285 MetadataMap (*meta_data_maps)[2];
286 int nb_meta_data_maps;
287 int metadata_global_manual;
288 int metadata_streams_manual;
289 int metadata_chapters_manual;
290 const char **attachments;
291 int nb_attachments;
292
293 int chapters_input_file;
294
295 int64_t recording_time;
296 uint64_t limit_filesize;
297 float mux_preload;
298 float mux_max_delay;
299
300 int video_disable;
301 int audio_disable;
302 int subtitle_disable;
303 int data_disable;
304
305 /* indexed by output file stream index */
306 int *streamid_map;
307 int nb_streamid_map;
308
309 SpecifierOpt *metadata;
310 int nb_metadata;
311 SpecifierOpt *max_frames;
312 int nb_max_frames;
313 SpecifierOpt *bitstream_filters;
314 int nb_bitstream_filters;
315 SpecifierOpt *codec_tags;
316 int nb_codec_tags;
317 SpecifierOpt *sample_fmts;
318 int nb_sample_fmts;
319 SpecifierOpt *qscale;
320 int nb_qscale;
321 SpecifierOpt *forced_key_frames;
322 int nb_forced_key_frames;
323 SpecifierOpt *force_fps;
324 int nb_force_fps;
325 SpecifierOpt *frame_aspect_ratios;
326 int nb_frame_aspect_ratios;
327 SpecifierOpt *rc_overrides;
328 int nb_rc_overrides;
329 SpecifierOpt *intra_matrices;
330 int nb_intra_matrices;
331 SpecifierOpt *inter_matrices;
332 int nb_inter_matrices;
333 SpecifierOpt *top_field_first;
334 int nb_top_field_first;
335 SpecifierOpt *presets;
336 int nb_presets;
337 SpecifierOpt *copy_initial_nonkeyframes;
338 int nb_copy_initial_nonkeyframes;
339 #if CONFIG_AVFILTER
340 SpecifierOpt *filters;
341 int nb_filters;
342 #endif
343 } OptionsContext;
344
345 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
346 {\
347 int i, ret;\
348 for (i = 0; i < o->nb_ ## name; i++) {\
349 char *spec = o->name[i].specifier;\
350 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
351 outvar = o->name[i].u.type;\
352 else if (ret < 0)\
353 exit_program(1);\
354 }\
355 }
356
357 static void reset_options(OptionsContext *o)
358 {
359 const OptionDef *po = options;
360
361 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
362 while (po->name) {
363 void *dst = (uint8_t*)o + po->u.off;
364
365 if (po->flags & OPT_SPEC) {
366 SpecifierOpt **so = dst;
367 int i, *count = (int*)(so + 1);
368 for (i = 0; i < *count; i++) {
369 av_freep(&(*so)[i].specifier);
370 if (po->flags & OPT_STRING)
371 av_freep(&(*so)[i].u.str);
372 }
373 av_freep(so);
374 *count = 0;
375 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
376 av_freep(dst);
377 po++;
378 }
379
380 av_freep(&o->stream_maps);
381 av_freep(&o->meta_data_maps);
382 av_freep(&o->streamid_map);
383
384 memset(o, 0, sizeof(*o));
385
386 o->mux_max_delay = 0.7;
387 o->recording_time = INT64_MAX;
388 o->limit_filesize = UINT64_MAX;
389 o->chapters_input_file = INT_MAX;
390
391 uninit_opts();
392 init_opts();
393 }
394
395 #if CONFIG_AVFILTER
396
397 static int configure_video_filters(InputStream *ist, OutputStream *ost)
398 {
399 AVFilterContext *last_filter, *filter;
400 /** filter graph containing all filters including input & output */
401 AVCodecContext *codec = ost->st->codec;
402 AVCodecContext *icodec = ist->st->codec;
403 FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
404 AVRational sample_aspect_ratio;
405 char args[255];
406 int ret;
407
408 ost->graph = avfilter_graph_alloc();
409
410 if (ist->st->sample_aspect_ratio.num){
411 sample_aspect_ratio = ist->st->sample_aspect_ratio;
412 }else
413 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
414
415 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
416 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
417 sample_aspect_ratio.num, sample_aspect_ratio.den);
418
419 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
420 "src", args, NULL, ost->graph);
421 if (ret < 0)
422 return ret;
423 ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
424 "out", NULL, &ffsink_ctx, ost->graph);
425 if (ret < 0)
426 return ret;
427 last_filter = ost->input_video_filter;
428
429 if (codec->width != icodec->width || codec->height != icodec->height) {
430 snprintf(args, 255, "%d:%d:flags=0x%X",
431 codec->width,
432 codec->height,
433 (unsigned)ost->sws_flags);
434 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
435 NULL, args, NULL, ost->graph)) < 0)
436 return ret;
437 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
438 return ret;
439 last_filter = filter;
440 }
441
442 snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
443 ost->graph->scale_sws_opts = av_strdup(args);
444
445 if (ost->avfilter) {
446 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
447 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
448
449 outputs->name = av_strdup("in");
450 outputs->filter_ctx = last_filter;
451 outputs->pad_idx = 0;
452 outputs->next = NULL;
453
454 inputs->name = av_strdup("out");
455 inputs->filter_ctx = ost->output_video_filter;
456 inputs->pad_idx = 0;
457 inputs->next = NULL;
458
459 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
460 return ret;
461 av_freep(&ost->avfilter);
462 } else {
463 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
464 return ret;
465 }
466
467 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
468 return ret;
469
470 codec->width = ost->output_video_filter->inputs[0]->w;
471 codec->height = ost->output_video_filter->inputs[0]->h;
472 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
473 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
474 av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
475 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
476
477 return 0;
478 }
479 #endif /* CONFIG_AVFILTER */
480
481 static void term_exit(void)
482 {
483 av_log(NULL, AV_LOG_QUIET, "");
484 }
485
486 static volatile int received_sigterm = 0;
487 static volatile int received_nb_signals = 0;
488
489 static void
490 sigterm_handler(int sig)
491 {
492 received_sigterm = sig;
493 received_nb_signals++;
494 term_exit();
495 }
496
497 static void term_init(void)
498 {
499 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
500 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
501 #ifdef SIGXCPU
502 signal(SIGXCPU, sigterm_handler);
503 #endif
504 }
505
506 static int decode_interrupt_cb(void)
507 {
508 return received_nb_signals > 1;
509 }
510
511 void exit_program(int ret)
512 {
513 int i;
514
515 /* close files */
516 for(i=0;i<nb_output_files;i++) {
517 AVFormatContext *s = output_files[i].ctx;
518 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
519 avio_close(s->pb);
520 avformat_free_context(s);
521 av_dict_free(&output_files[i].opts);
522 }
523 for(i=0;i<nb_input_files;i++) {
524 av_close_input_file(input_files[i].ctx);
525 }
526 for (i = 0; i < nb_input_streams; i++)
527 av_dict_free(&input_streams[i].opts);
528
529 if (vstats_file)
530 fclose(vstats_file);
531 av_free(vstats_filename);
532
533 av_freep(&input_streams);
534 av_freep(&input_files);
535 av_freep(&output_streams);
536 av_freep(&output_files);
537
538 uninit_opts();
539 av_free(audio_buf);
540 av_free(audio_out);
541 allocated_audio_buf_size= allocated_audio_out_size= 0;
542 av_free(samples);
543
544 #if CONFIG_AVFILTER
545 avfilter_uninit();
546 #endif
547 avformat_network_deinit();
548
549 if (received_sigterm) {
550 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
551 (int) received_sigterm);
552 exit (255);
553 }
554
555 exit(ret); /* not all OS-es handle main() return value */
556 }
557
558 static void assert_avoptions(AVDictionary *m)
559 {
560 AVDictionaryEntry *t;
561 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
562 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
563 exit_program(1);
564 }
565 }
566
567 static void assert_codec_experimental(AVCodecContext *c, int encoder)
568 {
569 const char *codec_string = encoder ? "encoder" : "decoder";
570 AVCodec *codec;
571 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
572 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
573 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
574 "results.\nAdd '-strict experimental' if you want to use it.\n",
575 codec_string, c->codec->name);
576 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
577 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
578 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
579 codec_string, codec->name);
580 exit_program(1);
581 }
582 }
583
584 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
585 {
586 if(codec && codec->sample_fmts){
587 const enum AVSampleFormat *p= codec->sample_fmts;
588 for(; *p!=-1; p++){
589 if(*p == st->codec->sample_fmt)
590 break;
591 }
592 if (*p == -1) {
593 av_log(NULL, AV_LOG_WARNING,
594 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
595 av_get_sample_fmt_name(st->codec->sample_fmt),
596 codec->name,
597 av_get_sample_fmt_name(codec->sample_fmts[0]));
598 st->codec->sample_fmt = codec->sample_fmts[0];
599 }
600 }
601 }
602
603 /**
604 * Update the requested input sample format based on the output sample format.
605 * This is currently only used to request float output from decoders which
606 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
607 * Ideally this will be removed in the future when decoders do not do format
608 * conversion and only output in their native format.
609 */
610 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
611 AVCodecContext *enc)
612 {
613 /* if sample formats match or a decoder sample format has already been
614 requested, just return */
615 if (enc->sample_fmt == dec->sample_fmt ||
616 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
617 return;
618
619 /* if decoder supports more than one output format */
620 if (dec_codec && dec_codec->sample_fmts &&
621 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
622 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
623 const enum AVSampleFormat *p;
624 int min_dec = -1, min_inc = -1;
625
626 /* find a matching sample format in the encoder */
627 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
628 if (*p == enc->sample_fmt) {
629 dec->request_sample_fmt = *p;
630 return;
631 } else if (*p > enc->sample_fmt) {
632 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
633 } else
634 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
635 }
636
637 /* if none match, provide the one that matches quality closest */
638 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
639 enc->sample_fmt - min_dec;
640 }
641 }
642
643 static void choose_sample_rate(AVStream *st, AVCodec *codec)
644 {
645 if(codec && codec->supported_samplerates){
646 const int *p= codec->supported_samplerates;
647 int best=0;
648 int best_dist=INT_MAX;
649 for(; *p; p++){
650 int dist= abs(st->codec->sample_rate - *p);
651 if(dist < best_dist){
652 best_dist= dist;
653 best= *p;
654 }
655 }
656 if(best_dist){
657 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
658 }
659 st->codec->sample_rate= best;
660 }
661 }
662
663 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
664 {
665 if(codec && codec->pix_fmts){
666 const enum PixelFormat *p= codec->pix_fmts;
667 if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
668 if(st->codec->codec_id==CODEC_ID_MJPEG){
669 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
670 }else if(st->codec->codec_id==CODEC_ID_LJPEG){
671 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};
672 }
673 }
674 for(; *p!=-1; p++){
675 if(*p == st->codec->pix_fmt)
676 break;
677 }
678 if (*p == -1) {
679 if(st->codec->pix_fmt != PIX_FMT_NONE)
680 av_log(NULL, AV_LOG_WARNING,
681 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
682 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
683 codec->name,
684 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
685 st->codec->pix_fmt = codec->pix_fmts[0];
686 }
687 }
688 }
689
690 static double
691 get_sync_ipts(const OutputStream *ost)
692 {
693 const InputStream *ist = ost->sync_ist;
694 OutputFile *of = &output_files[ost->file_index];
695 return (double)(ist->pts - of->start_time)/AV_TIME_BASE;
696 }
697
698 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
699 int ret;
700
701 while(bsfc){
702 AVPacket new_pkt= *pkt;
703 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
704 &new_pkt.data, &new_pkt.size,
705 pkt->data, pkt->size,
706 pkt->flags & AV_PKT_FLAG_KEY);
707 if(a>0){
708 av_free_packet(pkt);
709 new_pkt.destruct= av_destruct_packet;
710 } else if(a<0){
711 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
712 bsfc->filter->name, pkt->stream_index,
713 avctx->codec ? avctx->codec->name : "copy");
714 print_error("", a);
715 if (exit_on_error)
716 exit_program(1);
717 }
718 *pkt= new_pkt;
719
720 bsfc= bsfc->next;
721 }
722
723 ret= av_interleaved_write_frame(s, pkt);
724 if(ret < 0){
725 print_error("av_interleaved_write_frame()", ret);
726 exit_program(1);
727 }
728 }
729
730 static void do_audio_out(AVFormatContext *s,
731 OutputStream *ost,
732 InputStream *ist,
733 unsigned char *buf, int size)
734 {
735 uint8_t *buftmp;
736 int64_t audio_out_size, audio_buf_size;
737 int64_t allocated_for_size= size;
738
739 int size_out, frame_bytes, ret, resample_changed;
740 AVCodecContext *enc= ost->st->codec;
741 AVCodecContext *dec= ist->st->codec;
742 int osize = av_get_bytes_per_sample(enc->sample_fmt);
743 int isize = av_get_bytes_per_sample(dec->sample_fmt);
744 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
745
746 need_realloc:
747 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
748 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
749 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
750 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
751 audio_buf_size*= osize*enc->channels;
752
753 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
754 if(coded_bps > 8*osize)
755 audio_out_size= audio_out_size * coded_bps / (8*osize);
756 audio_out_size += FF_MIN_BUFFER_SIZE;
757
758 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
759 av_log(NULL, AV_LOG_FATAL, "Buffer sizes too large\n");
760 exit_program(1);
761 }
762
763 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
764 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
765 if (!audio_buf || !audio_out){
766 av_log(NULL, AV_LOG_FATAL, "Out of memory in do_audio_out\n");
767 exit_program(1);
768 }
769
770 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
771 ost->audio_resample = 1;
772
773 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
774 ost->resample_channels != dec->channels ||
775 ost->resample_sample_rate != dec->sample_rate;
776
777 if ((ost->audio_resample && !ost->resample) || resample_changed) {
778 if (resample_changed) {
779 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",
780 ist->file_index, ist->st->index,
781 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
782 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
783 ost->resample_sample_fmt = dec->sample_fmt;
784 ost->resample_channels = dec->channels;
785 ost->resample_sample_rate = dec->sample_rate;
786 if (ost->resample)
787 audio_resample_close(ost->resample);
788 }
789 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
790 if (audio_sync_method <= 1 &&
791 ost->resample_sample_fmt == enc->sample_fmt &&
792 ost->resample_channels == enc->channels &&
793 ost->resample_sample_rate == enc->sample_rate) {
794 ost->resample = NULL;
795 ost->audio_resample = 0;
796 } else if (ost->audio_resample) {
797 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
798 av_log(NULL, AV_LOG_WARNING, "Using s16 intermediate sample format for resampling\n");
799 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
800 enc->sample_rate, dec->sample_rate,
801 enc->sample_fmt, dec->sample_fmt,
802 16, 10, 0, 0.8);
803 if (!ost->resample) {
804 av_log(NULL, AV_LOG_FATAL, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
805 dec->channels, dec->sample_rate,
806 enc->channels, enc->sample_rate);
807 exit_program(1);
808 }
809 }
810 }
811
812 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
813 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
814 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
815 if (ost->reformat_ctx)
816 av_audio_convert_free(ost->reformat_ctx);
817 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
818 dec->sample_fmt, 1, NULL, 0);
819 if (!ost->reformat_ctx) {
820 av_log(NULL, AV_LOG_FATAL, "Cannot convert %s sample format to %s sample format\n",
821 av_get_sample_fmt_name(dec->sample_fmt),
822 av_get_sample_fmt_name(enc->sample_fmt));
823 exit_program(1);
824 }
825 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
826 }
827
828 if(audio_sync_method){
829 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
830 - av_fifo_size(ost->fifo)/(enc->channels * 2);
831 double idelta= delta*dec->sample_rate / enc->sample_rate;
832 int byte_delta= ((int)idelta)*2*dec->channels;
833
834 //FIXME resample delay
835 if(fabs(delta) > 50){
836 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
837 if(byte_delta < 0){
838 byte_delta= FFMAX(byte_delta, -size);
839 size += byte_delta;
840 buf -= byte_delta;
841 av_log(NULL, AV_LOG_VERBOSE, "discarding %d audio samples\n", (int)-delta);
842 if(!size)
843 return;
844 ist->is_start=0;
845 }else{
846 static uint8_t *input_tmp= NULL;
847 input_tmp= av_realloc(input_tmp, byte_delta + size);
848
849 if(byte_delta > allocated_for_size - size){
850 allocated_for_size= byte_delta + (int64_t)size;
851 goto need_realloc;
852 }
853 ist->is_start=0;
854
855 memset(input_tmp, 0, byte_delta);
856 memcpy(input_tmp + byte_delta, buf, size);
857 buf= input_tmp;
858 size += byte_delta;
859 av_log(NULL, AV_LOG_VERBOSE, "adding %d audio samples of silence\n", (int)delta);
860 }
861 }else if(audio_sync_method>1){
862 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
863 av_assert0(ost->audio_resample);
864 av_log(NULL, AV_LOG_VERBOSE, "compensating audio timestamp drift:%f compensation:%d in:%d\n",
865 delta, comp, enc->sample_rate);
866 // 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));
867 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
868 }
869 }
870 }else
871 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
872 - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
873
874 if (ost->audio_resample) {
875 buftmp = audio_buf;
876 size_out = audio_resample(ost->resample,
877 (short *)buftmp, (short *)buf,
878 size / (dec->channels * isize));
879 size_out = size_out * enc->channels * osize;
880 } else {
881 buftmp = buf;
882 size_out = size;
883 }
884
885 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
886 const void *ibuf[6]= {buftmp};
887 void *obuf[6]= {audio_buf};
888 int istride[6]= {isize};
889 int ostride[6]= {osize};
890 int len= size_out/istride[0];
891 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
892 printf("av_audio_convert() failed\n");
893 if (exit_on_error)
894 exit_program(1);
895 return;
896 }
897 buftmp = audio_buf;
898 size_out = len*osize;
899 }
900
901 /* now encode as many frames as possible */
902 if (enc->frame_size > 1) {
903 /* output resampled raw samples */
904 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
905 av_log(NULL, AV_LOG_FATAL, "av_fifo_realloc2() failed\n");
906 exit_program(1);
907 }
908 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
909
910 frame_bytes = enc->frame_size * osize * enc->channels;
911
912 while (av_fifo_size(ost->fifo) >= frame_bytes) {
913 AVPacket pkt;
914 av_init_packet(&pkt);
915
916 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
917
918 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
919
920 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
921 (short *)audio_buf);
922 if (ret < 0) {
923 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
924 exit_program(1);
925 }
926 audio_size += ret;
927 pkt.stream_index= ost->index;
928 pkt.data= audio_out;
929 pkt.size= ret;
930 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
931 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
932 pkt.flags |= AV_PKT_FLAG_KEY;
933 write_frame(s, &pkt, enc, ost->bitstream_filters);
934
935 ost->sync_opts += enc->frame_size;
936 }
937 } else {
938 AVPacket pkt;
939 av_init_packet(&pkt);
940
941 ost->sync_opts += size_out / (osize * enc->channels);
942
943 /* output a pcm frame */
944 /* determine the size of the coded buffer */
945 size_out /= osize;
946 if (coded_bps)
947 size_out = size_out*coded_bps/8;
948
949 if(size_out > audio_out_size){
950 av_log(NULL, AV_LOG_FATAL, "Internal error, buffer size too small\n");
951 exit_program(1);
952 }
953
954 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
955 ret = avcodec_encode_audio(enc, audio_out, size_out,
956 (short *)buftmp);
957 if (ret < 0) {
958 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
959 exit_program(1);
960 }
961 audio_size += ret;
962 pkt.stream_index= ost->index;
963 pkt.data= audio_out;
964 pkt.size= ret;
965 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
966 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
967 pkt.flags |= AV_PKT_FLAG_KEY;
968 write_frame(s, &pkt, enc, ost->bitstream_filters);
969 }
970 }
971
972 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
973 {
974 AVCodecContext *dec;
975 AVPicture *picture2;
976 AVPicture picture_tmp;
977 uint8_t *buf = 0;
978
979 dec = ist->st->codec;
980
981 /* deinterlace : must be done before any resize */
982 if (do_deinterlace) {
983 int size;
984
985 /* create temporary picture */
986 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
987 buf = av_malloc(size);
988 if (!buf)
989 return;
990
991 picture2 = &picture_tmp;
992 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
993
994 if(avpicture_deinterlace(picture2, picture,
995 dec->pix_fmt, dec->width, dec->height) < 0) {
996 /* if error, do not deinterlace */
997 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
998 av_free(buf);
999 buf = NULL;
1000 picture2 = picture;
1001 }
1002 } else {
1003 picture2 = picture;
1004 }
1005
1006 if (picture != picture2)
1007 *picture = *picture2;
1008 *bufp = buf;
1009 }
1010
1011 static void do_subtitle_out(AVFormatContext *s,
1012 OutputStream *ost,
1013 InputStream *ist,
1014 AVSubtitle *sub,
1015 int64_t pts)
1016 {
1017 static uint8_t *subtitle_out = NULL;
1018 int subtitle_out_max_size = 1024 * 1024;
1019 int subtitle_out_size, nb, i;
1020 AVCodecContext *enc;
1021 AVPacket pkt;
1022
1023 if (pts == AV_NOPTS_VALUE) {
1024 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
1025 if (exit_on_error)
1026 exit_program(1);
1027 return;
1028 }
1029
1030 enc = ost->st->codec;
1031
1032 if (!subtitle_out) {
1033 subtitle_out = av_malloc(subtitle_out_max_size);
1034 }
1035
1036 /* Note: DVB subtitle need one packet to draw them and one other
1037 packet to clear them */
1038 /* XXX: signal it in the codec context ? */
1039 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1040 nb = 2;
1041 else
1042 nb = 1;
1043
1044 for(i = 0; i < nb; i++) {
1045 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1046 // start_display_time is required to be 0
1047 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1048 sub->end_display_time -= sub->start_display_time;
1049 sub->start_display_time = 0;
1050 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1051 subtitle_out_max_size, sub);
1052 if (subtitle_out_size < 0) {
1053 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
1054 exit_program(1);
1055 }
1056
1057 av_init_packet(&pkt);
1058 pkt.stream_index = ost->index;
1059 pkt.data = subtitle_out;
1060 pkt.size = subtitle_out_size;
1061 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1062 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1063 /* XXX: the pts correction is handled here. Maybe handling
1064 it in the codec would be better */
1065 if (i == 0)
1066 pkt.pts += 90 * sub->start_display_time;
1067 else
1068 pkt.pts += 90 * sub->end_display_time;
1069 }
1070 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1071 }
1072 }
1073
1074 static int bit_buffer_size= 1024*256;
1075 static uint8_t *bit_buffer= NULL;
1076
1077 static void do_video_resample(OutputStream *ost,
1078 InputStream *ist,
1079 AVFrame *in_picture,
1080 AVFrame **out_picture)
1081 {
1082 int resample_changed = 0;
1083 AVCodecContext *dec = ist->st->codec;
1084 *out_picture = in_picture;
1085
1086 resample_changed = ost->resample_width != dec->width ||
1087 ost->resample_height != dec->height ||
1088 ost->resample_pix_fmt != dec->pix_fmt;
1089
1090 if (resample_changed) {
1091 av_log(NULL, AV_LOG_INFO,
1092 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1093 ist->file_index, ist->st->index,
1094 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1095 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt));
1096 if(!ost->video_resample)
1097 ost->video_resample = 1;
1098 }
1099
1100 #if !CONFIG_AVFILTER
1101 if (ost->video_resample) {
1102 *out_picture = &ost->pict_tmp;
1103 if (resample_changed) {
1104 /* initialize a new scaler context */
1105 sws_freeContext(ost->img_resample_ctx);
1106 ost->img_resample_ctx = sws_getContext(
1107 ist->st->codec->width,
1108 ist->st->codec->height,
1109 ist->st->codec->pix_fmt,
1110 ost->st->codec->width,
1111 ost->st->codec->height,
1112 ost->st->codec->pix_fmt,
1113 ost->sws_flags, NULL, NULL, NULL);
1114 if (ost->img_resample_ctx == NULL) {
1115 av_log(NULL, AV_LOG_FATAL, "Cannot get resampling context\n");
1116 exit_program(1);
1117 }
1118 }
1119 sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1120 0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1121 }
1122 #else
1123 if (resample_changed) {
1124 avfilter_graph_free(&ost->graph);
1125 if (configure_video_filters(ist, ost)) {
1126 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1127 exit_program(1);
1128 }
1129 }
1130 #endif
1131 if (resample_changed) {
1132 ost->resample_width = dec->width;
1133 ost->resample_height = dec->height;
1134 ost->resample_pix_fmt = dec->pix_fmt;
1135 }
1136 }
1137
1138
1139 static void do_video_out(AVFormatContext *s,
1140 OutputStream *ost,
1141 InputStream *ist,
1142 AVFrame *in_picture,
1143 int *frame_size, float quality)
1144 {
1145 int nb_frames, i, ret, format_video_sync;
1146 AVFrame *final_picture;
1147 AVCodecContext *enc;
1148 double sync_ipts;
1149
1150 enc = ost->st->codec;
1151
1152 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1153
1154 /* by default, we output a single frame */
1155 nb_frames = 1;
1156
1157 *frame_size = 0;
1158
1159 format_video_sync = video_sync_method;
1160 if (format_video_sync < 0)
1161 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1162
1163 if (format_video_sync) {
1164 double vdelta = sync_ipts - ost->sync_opts;
1165 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1166 if (vdelta < -1.1)
1167 nb_frames = 0;
1168 else if (format_video_sync == 2) {
1169 if(vdelta<=-0.6){
1170 nb_frames=0;
1171 }else if(vdelta>0.6)
1172 ost->sync_opts= lrintf(sync_ipts);
1173 }else if (vdelta > 1.1)
1174 nb_frames = lrintf(vdelta);
1175 //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);
1176 if (nb_frames == 0){
1177 ++nb_frames_drop;
1178 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
1179 }else if (nb_frames > 1) {
1180 nb_frames_dup += nb_frames - 1;
1181 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames-1);
1182 }
1183 }else
1184 ost->sync_opts= lrintf(sync_ipts);
1185
1186 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
1187 if (nb_frames <= 0)
1188 return;
1189
1190 do_video_resample(ost, ist, in_picture, &final_picture);
1191
1192 /* duplicates frame if needed */
1193 for(i=0;i<nb_frames;i++) {
1194 AVPacket pkt;
1195 av_init_packet(&pkt);
1196 pkt.stream_index= ost->index;
1197
1198 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1199 /* raw pictures are written as AVPicture structure to
1200 avoid any copies. We support temporarily the older
1201 method. */
1202 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1203 enc->coded_frame->top_field_first = in_picture->top_field_first;
1204 pkt.data= (uint8_t *)final_picture;
1205 pkt.size= sizeof(AVPicture);
1206 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1207 pkt.flags |= AV_PKT_FLAG_KEY;
1208
1209 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1210 } else {
1211 AVFrame big_picture;
1212
1213 big_picture= *final_picture;
1214 /* better than nothing: use input picture interlaced
1215 settings */
1216 big_picture.interlaced_frame = in_picture->interlaced_frame;
1217 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1218 if (ost->top_field_first == -1)
1219 big_picture.top_field_first = in_picture->top_field_first;
1220 else
1221 big_picture.top_field_first = !!ost->top_field_first;
1222 }
1223
1224 /* handles same_quant here. This is not correct because it may
1225 not be a global option */
1226 big_picture.quality = quality;
1227 if (!enc->me_threshold)
1228 big_picture.pict_type = 0;
1229 // big_picture.pts = AV_NOPTS_VALUE;
1230 big_picture.pts= ost->sync_opts;
1231 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1232 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1233 if (ost->forced_kf_index < ost->forced_kf_count &&
1234 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1235 big_picture.pict_type = AV_PICTURE_TYPE_I;
1236 ost->forced_kf_index++;
1237 }
1238 ret = avcodec_encode_video(enc,
1239 bit_buffer, bit_buffer_size,
1240 &big_picture);
1241 if (ret < 0) {
1242 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1243 exit_program(1);
1244 }
1245
1246 if(ret>0){
1247 pkt.data= bit_buffer;
1248 pkt.size= ret;
1249 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1250 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1251 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1252 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1253 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1254
1255 if(enc->coded_frame->key_frame)
1256 pkt.flags |= AV_PKT_FLAG_KEY;
1257 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1258 *frame_size = ret;
1259 video_size += ret;
1260 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1261 // enc->frame_number-1, ret, enc->pict_type);
1262 /* if two pass, output log */
1263 if (ost->logfile && enc->stats_out) {
1264 fprintf(ost->logfile, "%s", enc->stats_out);
1265 }
1266 }
1267 }
1268 ost->sync_opts++;
1269 ost->frame_number++;
1270 }
1271 }
1272
1273 static double psnr(double d){
1274 return -10.0*log(d)/log(10.0);
1275 }
1276
1277 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1278 int frame_size)
1279 {
1280 AVCodecContext *enc;
1281 int frame_number;
1282 double ti1, bitrate, avg_bitrate;
1283
1284 /* this is executed just the first time do_video_stats is called */
1285 if (!vstats_file) {
1286 vstats_file = fopen(vstats_filename, "w");
1287 if (!vstats_file) {
1288 perror("fopen");
1289 exit_program(1);
1290 }
1291 }
1292
1293 enc = ost->st->codec;
1294 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1295 frame_number = ost->frame_number;
1296 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1297 if (enc->flags&CODEC_FLAG_PSNR)
1298 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1299
1300 fprintf(vstats_file,"f_size= %6d ", frame_size);
1301 /* compute pts value */
1302 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1303 if (ti1 < 0.01)
1304 ti1 = 0.01;
1305
1306 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1307 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1308 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1309 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1310 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1311 }
1312 }
1313
1314 static void print_report(OutputFile *output_files,
1315 OutputStream *ost_table, int nb_ostreams,
1316 int is_last_report, int64_t timer_start)
1317 {
1318 char buf[1024];
1319 OutputStream *ost;
1320 AVFormatContext *oc;
1321 int64_t total_size;
1322 AVCodecContext *enc;
1323 int frame_number, vid, i;
1324 double bitrate, ti1, pts;
1325 static int64_t last_time = -1;
1326 static int qp_histogram[52];
1327
1328 if (!print_stats && !is_last_report)
1329 return;
1330
1331 if (!is_last_report) {
1332 int64_t cur_time;
1333 /* display the report every 0.5 seconds */
1334 cur_time = av_gettime();
1335 if (last_time == -1) {
1336 last_time = cur_time;
1337 return;
1338 }
1339 if ((cur_time - last_time) < 500000)
1340 return;
1341 last_time = cur_time;
1342 }
1343
1344
1345 oc = output_files[0].ctx;
1346
1347 total_size = avio_size(oc->pb);
1348 if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1349 total_size= avio_tell(oc->pb);
1350
1351 buf[0] = '\0';
1352 ti1 = 1e10;
1353 vid = 0;
1354 for(i=0;i<nb_ostreams;i++) {
1355 float q = -1;
1356 ost = &ost_table[i];
1357 enc = ost->st->codec;
1358 if (!ost->stream_copy && enc->coded_frame)
1359 q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1360 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1361 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1362 }
1363 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1364 float t = (av_gettime()-timer_start) / 1000000.0;
1365
1366 frame_number = ost->frame_number;
1367 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1368 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1369 if(is_last_report)
1370 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1371 if(qp_hist){
1372 int j;
1373 int qp = lrintf(q);
1374 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1375 qp_histogram[qp]++;
1376 for(j=0; j<32; j++)
1377 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1378 }
1379 if (enc->flags&CODEC_FLAG_PSNR){
1380 int j;
1381 double error, error_sum=0;
1382 double scale, scale_sum=0;
1383 char type[3]= {'Y','U','V'};
1384 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1385 for(j=0; j<3; j++){
1386 if(is_last_report){
1387 error= enc->error[j];
1388 scale= enc->width*enc->height*255.0*255.0*frame_number;
1389 }else{
1390 error= enc->coded_frame->error[j];
1391 scale= enc->width*enc->height*255.0*255.0;
1392 }
1393 if(j) scale/=4;
1394 error_sum += error;
1395 scale_sum += scale;
1396 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1397 }
1398 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1399 }
1400 vid = 1;
1401 }
1402 /* compute min output value */
1403 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1404 if ((pts < ti1) && (pts > 0))
1405 ti1 = pts;
1406 }
1407 if (ti1 < 0.01)
1408 ti1 = 0.01;
1409
1410 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1411
1412 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1413 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1414 (double)total_size / 1024, ti1, bitrate);
1415
1416 if (nb_frames_dup || nb_frames_drop)
1417 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1418 nb_frames_dup, nb_frames_drop);
1419
1420 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1421
1422 fflush(stderr);
1423
1424 if (is_last_report) {
1425 int64_t raw= audio_size + video_size + extra_size;
1426 av_log(NULL, AV_LOG_INFO, "\n");
1427 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1428 video_size/1024.0,
1429 audio_size/1024.0,
1430 extra_size/1024.0,
1431 100.0*(total_size - raw)/raw
1432 );
1433 }
1434 }
1435
1436 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1437 {
1438 int fill_char = 0x00;
1439 if (sample_fmt == AV_SAMPLE_FMT_U8)
1440 fill_char = 0x80;
1441 memset(buf, fill_char, size);
1442 }
1443
1444 static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
1445 {
1446 int i, ret;
1447
1448 for (i = 0; i < nb_ostreams; i++) {
1449 OutputStream *ost = &ost_table[i];
1450 AVCodecContext *enc = ost->st->codec;
1451 AVFormatContext *os = output_files[ost->file_index].ctx;
1452
1453 if (!ost->encoding_needed)
1454 continue;
1455
1456 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1457 continue;
1458 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1459 continue;
1460
1461 for(;;) {
1462 AVPacket pkt;
1463 int fifo_bytes;
1464 av_init_packet(&pkt);
1465 pkt.stream_index= ost->index;
1466
1467 switch (ost->st->codec->codec_type) {
1468 case AVMEDIA_TYPE_AUDIO:
1469 fifo_bytes = av_fifo_size(ost->fifo);
1470 ret = 0;
1471 /* encode any samples remaining in fifo */
1472 if (fifo_bytes > 0) {
1473 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1474 int fs_tmp = enc->frame_size;
1475
1476 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1477 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1478 enc->frame_size = fifo_bytes / (osize * enc->channels);
1479 } else { /* pad */
1480 int frame_bytes = enc->frame_size*osize*enc->channels;
1481 if (allocated_audio_buf_size < frame_bytes)
1482 exit_program(1);
1483 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1484 }
1485
1486 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1487 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1488 ost->st->time_base.num, enc->sample_rate);
1489 enc->frame_size = fs_tmp;
1490 }
1491 if (ret <= 0) {
1492 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1493 }
1494 if (ret < 0) {
1495 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
1496 exit_program(1);
1497 }
1498 audio_size += ret;
1499 pkt.flags |= AV_PKT_FLAG_KEY;
1500 break;
1501 case AVMEDIA_TYPE_VIDEO:
1502 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1503 if (ret < 0) {
1504 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1505 exit_program(1);
1506 }
1507 video_size += ret;
1508 if(enc->coded_frame && enc->coded_frame->key_frame)
1509 pkt.flags |= AV_PKT_FLAG_KEY;
1510 if (ost->logfile && enc->stats_out) {
1511 fprintf(ost->logfile, "%s", enc->stats_out);
1512 }
1513 break;
1514 default:
1515 ret=-1;
1516 }
1517
1518 if (ret <= 0)
1519 break;
1520 pkt.data = bit_buffer;
1521 pkt.size = ret;
1522 if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1523 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1524 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1525 }
1526 }
1527 }
1528
1529 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1530 static int output_packet(InputStream *ist, int ist_index,
1531 OutputStream *ost_table, int nb_ostreams,
1532 const AVPacket *pkt)
1533 {
1534 AVFormatContext *os;
1535 OutputStream *ost;
1536 int ret = 0, i;
1537 int got_output;
1538 void *buffer_to_free = NULL;
1539 static unsigned int samples_size= 0;
1540 AVSubtitle subtitle, *subtitle_to_free;
1541 int64_t pkt_pts = AV_NOPTS_VALUE;
1542 #if CONFIG_AVFILTER
1543 int frame_available;
1544 #endif
1545 float quality;
1546
1547 AVPacket avpkt;
1548 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1549
1550 if(ist->next_pts == AV_NOPTS_VALUE)
1551 ist->next_pts= ist->pts;
1552
1553 if (pkt == NULL) {
1554 /* EOF handling */
1555 av_init_packet(&avpkt);
1556 avpkt.data = NULL;
1557 avpkt.size = 0;
1558 goto handle_eof;
1559 } else {
1560 avpkt = *pkt;
1561 }
1562
1563 if(pkt->dts != AV_NOPTS_VALUE)
1564 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1565 if(pkt->pts != AV_NOPTS_VALUE)
1566 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1567
1568 //while we have more to decode or while the decoder did output something on EOF
1569 while (avpkt.size > 0 || (!pkt && got_output)) {
1570 uint8_t *data_buf, *decoded_data_buf;
1571 int data_size, decoded_data_size;
1572 AVFrame *decoded_frame, *filtered_frame;
1573 handle_eof:
1574 ist->pts= ist->next_pts;
1575
1576 if(avpkt.size && avpkt.size != pkt->size)
1577 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1578 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1579 ist->showed_multi_packet_warning=1;
1580
1581 /* decode the packet if needed */
1582 decoded_frame = filtered_frame = NULL;
1583 decoded_data_buf = NULL; /* fail safe */
1584 decoded_data_size= 0;
1585 data_buf = avpkt.data;
1586 data_size = avpkt.size;
1587 subtitle_to_free = NULL;
1588 if (ist->decoding_needed) {
1589 switch(ist->st->codec->codec_type) {
1590 case AVMEDIA_TYPE_AUDIO:{
1591 if(pkt && samples_size < FFMAX(pkt->size * bps, AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1592 samples_size = FFMAX(pkt->size * bps, AVCODEC_MAX_AUDIO_FRAME_SIZE);
1593 av_free(samples);
1594 samples= av_malloc(samples_size);
1595 }
1596 decoded_data_size= samples_size;
1597 /* XXX: could avoid copy if PCM 16 bits with same
1598 endianness as CPU */
1599 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1600 &avpkt);
1601 if (ret < 0)
1602 return ret;
1603 avpkt.data += ret;
1604 avpkt.size -= ret;
1605 data_size = ret;
1606 got_output = decoded_data_size > 0;
1607 /* Some bug in mpeg audio decoder gives */
1608 /* decoded_data_size < 0, it seems they are overflows */
1609 if (!got_output) {
1610 /* no audio frame */
1611 continue;
1612 }
1613 decoded_data_buf = (uint8_t *)samples;
1614 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1615 (ist->st->codec->sample_rate * ist->st->codec->channels);
1616 break;}
1617 case AVMEDIA_TYPE_VIDEO:
1618 if (!(decoded_frame = avcodec_alloc_frame()))
1619 return AVERROR(ENOMEM);
1620 avpkt.pts = pkt_pts;
1621 avpkt.dts = ist->pts;
1622 pkt_pts = AV_NOPTS_VALUE;
1623
1624 ret = avcodec_decode_video2(ist->st->codec,
1625 decoded_frame, &got_output, &avpkt);
1626 quality = same_quant ? decoded_frame->quality : 0;
1627 if (ret < 0)
1628 goto fail;
1629 if (!got_output) {
1630 /* no picture yet */
1631 av_freep(&decoded_frame);
1632 goto discard_packet;
1633 }
1634 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1635 decoded_frame->pkt_dts);
1636 if (ist->st->codec->time_base.num != 0) {
1637 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1638 ist->next_pts += ((int64_t)AV_TIME_BASE *
1639 ist->st->codec->time_base.num * ticks) /
1640 ist->st->codec->time_base.den;
1641 }
1642 avpkt.size = 0;
1643 buffer_to_free = NULL;
1644 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1645 break;
1646 case AVMEDIA_TYPE_SUBTITLE:
1647 ret = avcodec_decode_subtitle2(ist->st->codec,
1648 &subtitle, &got_output, &avpkt);
1649 if (ret < 0)
1650 return ret;
1651 if (!got_output) {
1652 goto discard_packet;
1653 }
1654 subtitle_to_free = &subtitle;
1655 avpkt.size = 0;
1656 break;
1657 default:
1658 return -1;
1659 }
1660 } else {
1661 switch(ist->st->codec->codec_type) {
1662 case AVMEDIA_TYPE_AUDIO:
1663 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1664 ist->st->codec->sample_rate;
1665 break;
1666 case AVMEDIA_TYPE_VIDEO:
1667 if (ist->st->codec->time_base.num != 0) {
1668 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1669 ist->next_pts += ((int64_t)AV_TIME_BASE *
1670 ist->st->codec->time_base.num * ticks) /
1671 ist->st->codec->time_base.den;
1672 }
1673 break;
1674 }
1675 avpkt.size = 0;
1676 }
1677
1678 // preprocess audio (volume)
1679 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1680 if (audio_volume != 256) {
1681 switch (ist->st->codec->sample_fmt) {
1682 case AV_SAMPLE_FMT_U8:
1683 {
1684 uint8_t *volp = samples;
1685 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1686 int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
1687 *volp++ = av_clip_uint8(v);
1688 }
1689 break;
1690 }
1691 case AV_SAMPLE_FMT_S16:
1692 {
1693 int16_t *volp = samples;
1694 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1695 int v = ((*volp) * audio_volume + 128) >> 8;
1696 *volp++ = av_clip_int16(v);
1697 }
1698 break;
1699 }
1700 case AV_SAMPLE_FMT_S32:
1701 {
1702 int32_t *volp = samples;
1703 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1704 int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
1705 *volp++ = av_clipl_int32(v);
1706 }
1707 break;
1708 }
1709 case AV_SAMPLE_FMT_FLT:
1710 {
1711 float *volp = samples;
1712 float scale = audio_volume / 256.f;
1713 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1714 *volp++ *= scale;
1715 }
1716 break;
1717 }
1718 case AV_SAMPLE_FMT_DBL:
1719 {
1720 double *volp = samples;
1721 double scale = audio_volume / 256.;
1722 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1723 *volp++ *= scale;
1724 }
1725 break;
1726 }
1727 default:
1728 av_log(NULL, AV_LOG_FATAL,
1729 "Audio volume adjustment on sample format %s is not supported.\n",
1730 av_get_sample_fmt_name(ist->st->codec->sample_fmt));
1731 exit_program(1);
1732 }
1733 }
1734 }
1735
1736 /* frame rate emulation */
1737 if (input_files[ist->file_index].rate_emu) {
1738 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1739 int64_t now = av_gettime() - ist->start;
1740 if (pts > now)
1741 usleep(pts - now);
1742 }
1743 /* if output time reached then transcode raw format,
1744 encode packets and output them */
1745 for (i = 0; i < nb_ostreams; i++) {
1746 OutputFile *of = &output_files[ost_table[i].file_index];
1747 int frame_size;
1748
1749 ost = &ost_table[i];
1750 if (ost->source_index != ist_index)
1751 continue;
1752
1753 if (of->start_time && ist->pts < of->start_time)
1754 continue;
1755
1756 if (of->recording_time != INT64_MAX &&
1757 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1758 (AVRational){1, 1000000}) >= 0) {
1759 ost->is_past_recording_time = 1;
1760 continue;
1761 }
1762
1763 #if CONFIG_AVFILTER
1764 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1765 ost->input_video_filter) {
1766 AVRational sar;
1767 if (ist->st->sample_aspect_ratio.num)
1768 sar = ist->st->sample_aspect_ratio;
1769 else
1770 sar = ist->st->codec->sample_aspect_ratio;
1771 av_vsrc_buffer_add_frame(ost->input_video_filter, decoded_frame, ist->pts, sar);
1772 if (!(filtered_frame = avcodec_alloc_frame())) {
1773 ret = AVERROR(ENOMEM);
1774 goto fail;
1775 }
1776 }
1777 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1778 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1779 while (frame_available) {
1780 AVRational ist_pts_tb;
1781 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1782 get_filtered_video_frame(ost->output_video_filter, filtered_frame, &ost->picref, &ist_pts_tb);
1783 if (ost->picref)
1784 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1785 #else
1786 filtered_frame = decoded_frame;
1787 #endif
1788 os = output_files[ost->file_index].ctx;
1789
1790 /* set the input output pts pairs */
1791 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1792
1793 if (ost->encoding_needed) {
1794 av_assert0(ist->decoding_needed);
1795 switch(ost->st->codec->codec_type) {
1796 case AVMEDIA_TYPE_AUDIO:
1797 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1798 break;
1799 case AVMEDIA_TYPE_VIDEO:
1800 #if CONFIG_AVFILTER
1801 if (ost->picref->video && !ost->frame_aspect_ratio)
1802 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1803 #endif
1804 do_video_out(os, ost, ist, filtered_frame, &frame_size,
1805 same_quant ? quality : ost->st->codec->global_quality);
1806 if (vstats_filename && frame_size)
1807 do_video_stats(os, ost, frame_size);
1808 break;
1809 case AVMEDIA_TYPE_SUBTITLE:
1810 do_subtitle_out(os, ost, ist, &subtitle,
1811 pkt->pts);
1812 break;
1813 default:
1814 abort();
1815 }
1816 } else {
1817 AVPacket opkt;
1818 int64_t ost_tb_start_time= av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1819
1820 av_init_packet(&opkt);
1821
1822 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1823 !ost->copy_initial_nonkeyframes)
1824 #if !CONFIG_AVFILTER
1825 continue;
1826 #else
1827 goto cont;
1828 #endif
1829
1830 /* no reencoding needed : output the packet directly */
1831 /* force the input stream PTS */
1832
1833 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1834 audio_size += data_size;
1835 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1836 video_size += data_size;
1837 ost->sync_opts++;
1838 }
1839
1840 opkt.stream_index= ost->index;
1841 if(pkt->pts != AV_NOPTS_VALUE)
1842 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1843 else
1844 opkt.pts= AV_NOPTS_VALUE;
1845
1846 if (pkt->dts == AV_NOPTS_VALUE)
1847 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1848 else
1849 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1850 opkt.dts -= ost_tb_start_time;
1851
1852 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1853 opkt.flags= pkt->flags;
1854
1855 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1856 if( ost->st->codec->codec_id != CODEC_ID_H264
1857 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1858 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1859 ) {
1860 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1861 opkt.destruct= av_destruct_packet;
1862 } else {
1863 opkt.data = data_buf;
1864 opkt.size = data_size;
1865 }
1866
1867 write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1868 ost->st->codec->frame_number++;
1869 ost->frame_number++;
1870 av_free_packet(&opkt);
1871 }
1872 #if CONFIG_AVFILTER
1873 cont:
1874 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1875 ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1876 if (ost->picref)
1877 avfilter_unref_buffer(ost->picref);
1878 }
1879 av_freep(&filtered_frame);
1880 #endif
1881 }
1882
1883 fail:
1884 av_free(buffer_to_free);
1885 /* XXX: allocate the subtitles in the codec ? */
1886 if (subtitle_to_free) {
1887 avsubtitle_free(subtitle_to_free);
1888 subtitle_to_free = NULL;
1889 }
1890 av_freep(&decoded_frame);
1891 if (ret < 0)
1892 return ret;
1893 }
1894 discard_packet:
1895
1896 return 0;
1897 }
1898
1899 static void print_sdp(OutputFile *output_files, int n)
1900 {
1901 char sdp[2048];
1902 int i;
1903 AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
1904
1905 if (!avc)
1906 exit_program(1);
1907 for (i = 0; i < n; i++)
1908 avc[i] = output_files[i].ctx;
1909
1910 av_sdp_create(avc, n, sdp, sizeof(sdp));
1911 printf("SDP:\n%s\n", sdp);
1912 fflush(stdout);
1913 av_freep(&avc);
1914 }
1915
1916 static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
1917 char *error, int error_len)
1918 {
1919 int i;
1920 InputStream *ist = &input_streams[ist_index];
1921 if (ist->decoding_needed) {
1922 AVCodec *codec = ist->dec;
1923 if (!codec) {
1924 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
1925 ist->st->codec->codec_id, ist->file_index, ist->st->index);
1926 return AVERROR(EINVAL);
1927 }
1928
1929 /* update requested sample format for the decoder based on the
1930 corresponding encoder sample format */
1931 for (i = 0; i < nb_output_streams; i++) {
1932 OutputStream *ost = &output_streams[i];
1933 if (ost->source_index == ist_index) {
1934 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
1935 break;
1936 }
1937 }
1938
1939 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
1940 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
1941 ist->file_index, ist->st->index);
1942 return AVERROR(EINVAL);
1943 }
1944 assert_codec_experimental(ist->st->codec, 0);
1945 assert_avoptions(ist->opts);
1946 }
1947
1948 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;
1949 ist->next_pts = AV_NOPTS_VALUE;
1950 init_pts_correction(&ist->pts_ctx);
1951 ist->is_start = 1;
1952
1953 return 0;
1954 }
1955
1956 static int transcode_init(OutputFile *output_files,
1957 int nb_output_files,
1958 InputFile *input_files,
1959 int nb_input_files)
1960 {
1961 int ret = 0, i, j, k;
1962 AVFormatContext *os;
1963 AVCodecContext *codec, *icodec;
1964 OutputStream *ost;
1965 InputStream *ist;
1966 char error[1024];
1967 int want_sdp = 1;
1968
1969 /* init framerate emulation */
1970 for (i = 0; i < nb_input_files; i++) {
1971 InputFile *ifile = &input_files[i];
1972 if (ifile->rate_emu)
1973 for (j = 0; j < ifile->nb_streams; j++)
1974 input_streams[j + ifile->ist_index].start = av_gettime();
1975 }
1976
1977 /* output stream init */
1978 for(i=0;i<nb_output_files;i++) {
1979 os = output_files[i].ctx;
1980 if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1981 av_dump_format(os, i, os->filename, 1);
1982 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
1983 return AVERROR(EINVAL);
1984 }
1985 }
1986
1987 /* for each output stream, we compute the right encoding parameters */
1988 for (i = 0; i < nb_output_streams; i++) {
1989 ost = &output_streams[i];
1990 os = output_files[ost->file_index].ctx;
1991 ist = &input_streams[ost->source_index];
1992
1993 if (ost->attachment_filename)
1994 continue;
1995
1996 codec = ost->st->codec;
1997 icodec = ist->st->codec;
1998
1999 ost->st->disposition = ist->st->disposition;
2000 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2001 codec->chroma_sample_location = icodec->chroma_sample_location;
2002
2003 if (ost->stream_copy) {
2004 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2005
2006 if (extra_size > INT_MAX) {
2007 return AVERROR(EINVAL);
2008 }
2009
2010 /* if stream_copy is selected, no need to decode or encode */
2011 codec->codec_id = icodec->codec_id;
2012 codec->codec_type = icodec->codec_type;
2013
2014 if(!codec->codec_tag){
2015 if( !os->oformat->codec_tag
2016 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2017 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2018 codec->codec_tag = icodec->codec_tag;
2019 }
2020
2021 codec->bit_rate = icodec->bit_rate;
2022 codec->rc_max_rate = icodec->rc_max_rate;
2023 codec->rc_buffer_size = icodec->rc_buffer_size;
2024 codec->extradata= av_mallocz(extra_size);
2025 if (!codec->extradata) {
2026 return AVERROR(ENOMEM);
2027 }
2028 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2029 codec->extradata_size= icodec->extradata_size;
2030 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){
2031 codec->time_base = icodec->time_base;
2032 codec->time_base.num *= icodec->ticks_per_frame;
2033 av_reduce(&codec->time_base.num, &codec->time_base.den,
2034 codec->time_base.num, codec->time_base.den, INT_MAX);
2035 }else
2036 codec->time_base = ist->st->time_base;
2037 switch(codec->codec_type) {
2038 case AVMEDIA_TYPE_AUDIO:
2039 if(audio_volume != 256) {
2040 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2041 exit_program(1);
2042 }
2043 codec->channel_layout = icodec->channel_layout;
2044 codec->sample_rate = icodec->sample_rate;
2045 codec->channels = icodec->channels;
2046 codec->frame_size = icodec->frame_size;
2047 codec->audio_service_type = icodec->audio_service_type;
2048 codec->block_align= icodec->block_align;
2049 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2050 codec->block_align= 0;
2051 if(codec->codec_id == CODEC_ID_AC3)
2052 codec->block_align= 0;
2053 break;
2054 case AVMEDIA_TYPE_VIDEO:
2055 codec->pix_fmt = icodec->pix_fmt;
2056 codec->width = icodec->width;
2057 codec->height = icodec->height;
2058 codec->has_b_frames = icodec->has_b_frames;
2059 if (!codec->sample_aspect_ratio.num) {
2060 codec->sample_aspect_ratio =
2061 ost->st->sample_aspect_ratio =
2062 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2063 ist->st->codec->sample_aspect_ratio.num ?
2064 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2065 }
2066 break;
2067 case AVMEDIA_TYPE_SUBTITLE:
2068 codec->width = icodec->width;
2069 codec->height = icodec->height;
2070 break;
2071 case AVMEDIA_TYPE_DATA:
2072 case AVMEDIA_TYPE_ATTACHMENT:
2073 break;
2074 default:
2075 abort();
2076 }
2077 } else {
2078 if (!ost->enc)
2079 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2080 ist->decoding_needed = 1;
2081 ost->encoding_needed = 1;
2082 switch(codec->codec_type) {
2083 case AVMEDIA_TYPE_AUDIO:
2084 ost->fifo= av_fifo_alloc(1024);
2085 if (!ost->fifo) {
2086 return AVERROR(ENOMEM);
2087 }
2088 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2089 if (!codec->sample_rate)
2090 codec->sample_rate = icodec->sample_rate;
2091 choose_sample_rate(ost->st, ost->enc);
2092 codec->time_base = (AVRational){1, codec->sample_rate};
2093 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2094 codec->sample_fmt = icodec->sample_fmt;
2095 choose_sample_fmt(ost->st, ost->enc);
2096 if (!codec->channels)
2097 codec->channels = icodec->channels;
2098 codec->channel_layout = icodec->channel_layout;
2099 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2100 codec->channel_layout = 0;
2101 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2102 icodec->request_channels = codec->channels;
2103 ost->resample_sample_fmt = icodec->sample_fmt;
2104 ost->resample_sample_rate = icodec->sample_rate;
2105 ost->resample_channels = icodec->channels;
2106 break;
2107 case AVMEDIA_TYPE_VIDEO:
2108 if (codec->pix_fmt == PIX_FMT_NONE)
2109 codec->pix_fmt = icodec->pix_fmt;
2110 choose_pixel_fmt(ost->st, ost->enc);
2111
2112 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2113 av_log(NULL, AV_LOG_FATAL, "Video pixel format is unknown, stream cannot be encoded\n");
2114 exit_program(1);
2115 }
2116
2117 if (!codec->width || !codec->height) {
2118 codec->width = icodec->width;
2119 codec->height = icodec->height;
2120 }
2121
2122 ost->video_resample = codec->width != icodec->width ||
2123 codec->height != icodec->height ||
2124 codec->pix_fmt != icodec->pix_fmt;
2125 if (ost->video_resample) {
2126 #if !CONFIG_AVFILTER
2127 avcodec_get_frame_defaults(&ost->pict_tmp);
2128 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2129 codec->width, codec->height)) {
2130 av_log(NULL, AV_LOG_FATAL, "Cannot allocate temp picture, check pix fmt\n");
2131 exit_program(1);
2132 }
2133 ost->img_resample_ctx = sws_getContext(
2134 icodec->width,
2135 icodec->height,
2136 icodec->pix_fmt,
2137 codec->width,
2138 codec->height,
2139 codec->pix_fmt,
2140 ost->sws_flags, NULL, NULL, NULL);
2141 if (ost->img_resample_ctx == NULL) {
2142 av_log(NULL, AV_LOG_FATAL, "Cannot get resampling context\n");
2143 exit_program(1);
2144 }
2145 #endif
2146 codec->bits_per_raw_sample= 0;
2147 }
2148
2149 ost->resample_height = icodec->height;
2150 ost->resample_width = icodec->width;
2151 ost->resample_pix_fmt= icodec->pix_fmt;
2152
2153 if (!ost->frame_rate.num)
2154 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2155 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2156 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2157 ost->frame_rate = ost->enc->supported_framerates[idx];
2158 }
2159 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2160
2161 #if CONFIG_AVFILTER
2162 if (configure_video_filters(ist, ost)) {
2163 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2164 exit(1);
2165 }
2166 #endif
2167 break;
2168 case AVMEDIA_TYPE_SUBTITLE:
2169 break;
2170 default:
2171 abort();
2172 break;
2173 }
2174 /* two pass mode */
2175 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2176 char logfilename[1024];
2177 FILE *f;
2178
2179 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2180 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2181 i);
2182 if (codec->flags & CODEC_FLAG_PASS1) {
2183 f = fopen(logfilename, "wb");
2184 if (!f) {
2185 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2186 logfilename, strerror(errno));
2187 exit_program(1);
2188 }
2189 ost->logfile = f;
2190 } else {
2191 char *logbuffer;
2192 size_t logbuffer_size;
2193 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2194 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2195 logfilename);
2196 exit_program(1);
2197 }
2198 codec->stats_in = logbuffer;
2199 }
2200 }
2201 }
2202 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2203 int size= codec->width * codec->height;
2204 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2205 }
2206 }
2207
2208 if (!bit_buffer)
2209 bit_buffer = av_malloc(bit_buffer_size);
2210 if (!bit_buffer) {
2211 av_log(NULL, AV_LOG_ERROR, "Cannot allocate %d bytes output buffer\n",
2212 bit_buffer_size);
2213 return AVERROR(ENOMEM);
2214 }
2215
2216 /* open each encoder */
2217 for (i = 0; i < nb_output_streams; i++) {
2218 ost = &output_streams[i];
2219 if (ost->encoding_needed) {
2220 AVCodec *codec = ost->enc;
2221 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2222 if (!codec) {
2223 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d:%d",
2224 ost->st->codec->codec_id, ost->file_index, ost->index);
2225 ret = AVERROR(EINVAL);
2226 goto dump_format;
2227 }
2228 if (dec->subtitle_header) {
2229 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2230 if (!ost->st->codec->subtitle_header) {
2231 ret = AVERROR(ENOMEM);
2232 goto dump_format;
2233 }
2234 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2235 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2236 }
2237 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2238 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2239 ost->file_index, ost->index);
2240 ret = AVERROR(EINVAL);
2241 goto dump_format;
2242 }
2243 assert_codec_experimental(ost->st->codec, 1);
2244 assert_avoptions(ost->opts);
2245 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2246 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2247 "It takes bits/s as argument, not kbits/s\n");
2248 extra_size += ost->st->codec->extradata_size;
2249
2250 if (ost->st->codec->me_threshold)
2251 input_streams[ost->source_index].st->codec->debug |= FF_DEBUG_MV;
2252 }
2253 }
2254
2255 /* init input streams */
2256 for (i = 0; i < nb_input_streams; i++)
2257 if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0)
2258 goto dump_format;
2259
2260 /* discard unused programs */
2261 for (i = 0; i < nb_input_files; i++) {
2262 InputFile *ifile = &input_files[i];
2263 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2264 AVProgram *p = ifile->ctx->programs[j];
2265 int discard = AVDISCARD_ALL;
2266
2267 for (k = 0; k < p->nb_stream_indexes; k++)
2268 if (!input_streams[ifile->ist_index + p->stream_index[k]].discard) {
2269 discard = AVDISCARD_DEFAULT;
2270 break;
2271 }
2272 p->discard = discard;
2273 }
2274 }
2275
2276 /* open files and write file headers */
2277 for (i = 0; i < nb_output_files; i++) {
2278 os = output_files[i].ctx;
2279 if (avformat_write_header(os, &output_files[i].opts) < 0) {
2280 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2281 ret = AVERROR(EINVAL);
2282 goto dump_format;
2283 }
2284 assert_avoptions(output_files[i].opts);
2285 if (strcmp(os->oformat->name, "rtp")) {
2286 want_sdp = 0;
2287 }
2288 }
2289
2290 dump_format:
2291 /* dump the file output parameters - cannot be done before in case
2292 of stream copy */
2293 for(i=0;i<nb_output_files;i++) {
2294 av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2295 }
2296
2297 /* dump the stream mapping */
2298 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2299 for (i = 0; i < nb_output_streams; i++) {
2300 ost = &output_streams[i];
2301
2302 if (ost->attachment_filename) {
2303 /* an attached file */
2304 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2305 ost->attachment_filename, ost->file_index, ost->index);
2306 continue;
2307 }
2308 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2309 input_streams[ost->source_index].file_index,
2310 input_streams[ost->source_index].st->index,
2311 ost->file_index,
2312 ost->index);
2313 if (ost->sync_ist != &input_streams[ost->source_index])
2314 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2315 ost->sync_ist->file_index,
2316 ost->sync_ist->st->index);
2317 if (ost->stream_copy)
2318 av_log(NULL, AV_LOG_INFO, " (copy)");
2319 else
2320 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index].dec ?
2321 input_streams[ost->source_index].dec->name : "?",
2322 ost->enc ? ost->enc->name : "?");
2323 av_log(NULL, AV_LOG_INFO, "\n");
2324 }
2325
2326 if (ret) {
2327 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2328 return ret;
2329 }
2330
2331 if (want_sdp) {
2332 print_sdp(output_files, nb_output_files);
2333 }
2334
2335 return 0;
2336 }
2337
2338 /*
2339 * The following code is the main loop of the file converter
2340 */
2341 static int transcode(OutputFile *output_files,
2342 int nb_output_files,
2343 InputFile *input_files,
2344 int nb_input_files)
2345 {
2346 int ret, i;
2347 AVFormatContext *is, *os;
2348 OutputStream *ost;
2349 InputStream *ist;
2350 uint8_t *no_packet;
2351 int no_packet_count=0;
2352 int64_t timer_start;
2353
2354 if (!(no_packet = av_mallocz(nb_input_files)))
2355 exit_program(1);
2356
2357 ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
2358 if (ret < 0)
2359 goto fail;
2360
2361 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2362 term_init();
2363
2364 timer_start = av_gettime();
2365
2366 for(; received_sigterm == 0;) {
2367 int file_index, ist_index;
2368 AVPacket pkt;
2369 int64_t ipts_min;
2370 double opts_min;
2371
2372 ipts_min = INT64_MAX;
2373 opts_min= 1e100;
2374
2375 /* select the stream that we must read now by looking at the
2376 smallest output pts */
2377 file_index = -1;
2378 for (i = 0; i < nb_output_streams; i++) {
2379 OutputFile *of;
2380 int64_t ipts;
2381 double opts;
2382 ost = &output_streams[i];
2383 of = &output_files[ost->file_index];
2384 os = output_files[ost->file_index].ctx;
2385 ist = &input_streams[ost->source_index];
2386 if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2387 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2388 continue;
2389 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2390 ipts = ist->pts;
2391 if (!input_files[ist->file_index].eof_reached){
2392 if(ipts < ipts_min) {
2393 ipts_min = ipts;
2394 if(input_sync ) file_index = ist->file_index;
2395 }
2396 if(opts < opts_min) {
2397 opts_min = opts;
2398 if(!input_sync) file_index = ist->file_index;
2399 }
2400 }
2401 if (ost->frame_number >= ost->max_frames) {
2402 int j;
2403 for (j = 0; j < of->ctx->nb_streams; j++)
2404 output_streams[of->ost_index + j].is_past_recording_time = 1;
2405 continue;
2406 }
2407 }
2408 /* if none, if is finished */
2409 if (file_index < 0) {
2410 if(no_packet_count){
2411 no_packet_count=0;
2412 memset(no_packet, 0, nb_input_files);
2413 usleep(10000);
2414 continue;
2415 }
2416 break;
2417 }
2418
2419 /* read a frame from it and output it in the fifo */
2420 is = input_files[file_index].ctx;
2421 ret= av_read_frame(is, &pkt);
2422 if(ret == AVERROR(EAGAIN)){
2423 no_packet[file_index]=1;
2424 no_packet_count++;
2425 continue;
2426 }
2427 if (ret < 0) {
2428 input_files[file_index].eof_reached = 1;
2429 if (opt_shortest)
2430 break;
2431 else
2432 continue;
2433 }
2434
2435 no_packet_count=0;
2436 memset(no_packet, 0, nb_input_files);
2437
2438 if (do_pkt_dump) {
2439 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2440 is->streams[pkt.stream_index]);
2441 }
2442 /* the following test is needed in case new streams appear
2443 dynamically in stream : we ignore them */
2444 if (pkt.stream_index >= input_files[file_index].nb_streams)
2445 goto discard_packet;
2446 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2447 ist = &input_streams[ist_index];
2448 if (ist->discard)
2449 goto discard_packet;
2450
2451 if (pkt.dts != AV_NOPTS_VALUE)
2452 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2453 if (pkt.pts != AV_NOPTS_VALUE)
2454 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2455
2456 if(pkt.pts != AV_NOPTS_VALUE)
2457 pkt.pts *= ist->ts_scale;
2458 if(pkt.dts != AV_NOPTS_VALUE)
2459 pkt.dts *= ist->ts_scale;
2460
2461 // 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);
2462 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2463 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2464 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2465 int64_t delta= pkt_dts - ist->next_pts;
2466 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2467 input_files[ist->file_index].ts_offset -= delta;
2468 av_log(NULL, AV_LOG_DEBUG, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2469 delta, input_files[ist->file_index].ts_offset);
2470 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2471 if(pkt.pts != AV_NOPTS_VALUE)
2472 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2473 }
2474 }
2475
2476 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2477 if (output_packet(ist, ist_index, output_streams, nb_output_streams, &pkt) < 0) {
2478
2479 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
2480 ist->file_index, ist->st->index);
2481 if (exit_on_error)
2482 exit_program(1);
2483 av_free_packet(&pkt);
2484 continue;
2485 }
2486
2487 discard_packet:
2488 av_free_packet(&pkt);
2489
2490 /* dump report by using the output first video and audio streams */
2491 print_report(output_files, output_streams, nb_output_streams, 0, timer_start);
2492 }
2493
2494 /* at the end of stream, we must flush the decoder buffers */
2495 for (i = 0; i < nb_input_streams; i++) {
2496 ist = &input_streams[i];
2497 if (ist->decoding_needed) {
2498 output_packet(ist, i, output_streams, nb_output_streams, NULL);
2499 }
2500 }
2501 flush_encoders(output_streams, nb_output_streams);
2502
2503 term_exit();
2504
2505 /* write the trailer if needed and close file */
2506 for(i=0;i<nb_output_files;i++) {
2507 os = output_files[i].ctx;
2508 av_write_trailer(os);
2509 }
2510
2511 /* dump report by using the first video and audio streams */
2512 print_report(output_files, output_streams, nb_output_streams, 1, timer_start);
2513
2514 /* close each encoder */
2515 for (i = 0; i < nb_output_streams; i++) {
2516 ost = &output_streams[i];
2517 if (ost->encoding_needed) {
2518 av_freep(&ost->st->codec->stats_in);
2519 avcodec_close(ost->st->codec);
2520 }
2521 #if CONFIG_AVFILTER
2522 avfilter_graph_free(&ost->graph);
2523 #endif
2524 }
2525
2526 /* close each decoder */
2527 for (i = 0; i < nb_input_streams; i++) {
2528 ist = &input_streams[i];
2529 if (ist->decoding_needed) {
2530 avcodec_close(ist->st->codec);
2531 }
2532 }
2533
2534 /* finished ! */
2535 ret = 0;
2536
2537 fail:
2538 av_freep(&bit_buffer);
2539 av_freep(&no_packet);
2540
2541 if (output_streams) {
2542 for (i = 0; i < nb_output_streams; i++) {
2543 ost = &output_streams[i];
2544 if (ost) {
2545 if (ost->stream_copy)
2546 av_freep(&ost->st->codec->extradata);
2547 if (ost->logfile) {
2548 fclose(ost->logfile);
2549 ost->logfile = NULL;
2550 }
2551 av_fifo_free(ost->fifo); /* works even if fifo is not
2552 initialized but set to zero */
2553 av_freep(&ost->st->codec->subtitle_header);
2554 av_free(ost->pict_tmp.data[0]);
2555 av_free(ost->forced_kf_pts);
2556 if (ost->video_resample)
2557 sws_freeContext(ost->img_resample_ctx);
2558 if (ost->resample)
2559 audio_resample_close(ost->resample);
2560 if (ost->reformat_ctx)
2561 av_audio_convert_free(ost->reformat_ctx);
2562 av_dict_free(&ost->opts);
2563 }
2564 }
2565 }
2566 return ret;
2567 }
2568
2569 static double parse_frame_aspect_ratio(const char *arg)
2570 {
2571 int x = 0, y = 0;
2572 double ar = 0;
2573 const char *p;
2574 char *end;
2575
2576 p = strchr(arg, ':');
2577 if (p) {
2578 x = strtol(arg, &end, 10);
2579 if (end == p)
2580 y = strtol(end+1, &end, 10);
2581 if (x > 0 && y > 0)
2582 ar = (double)x / (double)y;
2583 } else
2584 ar = strtod(arg, NULL);
2585
2586 if (!ar) {
2587 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
2588 exit_program(1);
2589 }
2590 return ar;
2591 }
2592
2593 static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
2594 {
2595 return parse_option(o, "codec:a", arg, options);
2596 }
2597
2598 static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
2599 {
2600 return parse_option(o, "codec:v", arg, options);
2601 }
2602
2603 static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
2604 {
2605 return parse_option(o, "codec:s", arg, options);
2606 }
2607
2608 static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
2609 {
2610 return parse_option(o, "codec:d", arg, options);
2611 }
2612
2613 static int opt_map(OptionsContext *o, const char *opt, const char *arg)
2614 {
2615 StreamMap *m = NULL;
2616 int i, negative = 0, file_idx;
2617 int sync_file_idx = -1, sync_stream_idx;
2618 char *p, *sync;
2619 char *map;
2620
2621 if (*arg == '-') {
2622 negative = 1;
2623 arg++;
2624 }
2625 map = av_strdup(arg);
2626
2627 /* parse sync stream first, just pick first matching stream */
2628 if (sync = strchr(map, ',')) {
2629 *sync = 0;
2630 sync_file_idx = strtol(sync + 1, &sync, 0);
2631 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2632 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
2633 exit_program(1);
2634 }
2635 if (*sync)
2636 sync++;
2637 for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
2638 if (check_stream_specifier(input_files[sync_file_idx].ctx,
2639 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2640 sync_stream_idx = i;
2641 break;
2642 }
2643 if (i == input_files[sync_file_idx].nb_streams) {
2644 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
2645 "match any streams.\n", arg);
2646 exit_program(1);
2647 }
2648 }
2649
2650
2651 file_idx = strtol(map, &p, 0);
2652 if (file_idx >= nb_input_files || file_idx < 0) {
2653 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
2654 exit_program(1);
2655 }
2656 if (negative)
2657 /* disable some already defined maps */
2658 for (i = 0; i < o->nb_stream_maps; i++) {
2659 m = &o->stream_maps[i];
2660 if (file_idx == m->file_index &&
2661 check_stream_specifier(input_files[m->file_index].ctx,
2662 input_files[m->file_index].ctx->streams[m->stream_index],
2663 *p == ':' ? p + 1 : p) > 0)
2664 m->disabled = 1;
2665 }
2666 else
2667 for (i = 0; i < input_files[file_idx].nb_streams; i++) {
2668 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2669 *p == ':' ? p + 1 : p) <= 0)
2670 continue;
2671 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
2672 &o->nb_stream_maps, o->nb_stream_maps + 1);
2673 m = &o->stream_maps[o->nb_stream_maps - 1];
2674
2675 m->file_index = file_idx;
2676 m->stream_index = i;
2677
2678 if (sync_file_idx >= 0) {
2679 m->sync_file_index = sync_file_idx;
2680 m->sync_stream_index = sync_stream_idx;
2681 } else {
2682 m->sync_file_index = file_idx;
2683 m->sync_stream_index = i;
2684 }
2685 }
2686
2687 if (!m) {
2688 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
2689 exit_program(1);
2690 }
2691
2692 av_freep(&map);
2693 return 0;
2694 }
2695
2696 static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
2697 {
2698 o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
2699 &o->nb_attachments, o->nb_attachments + 1);
2700 o->attachments[o->nb_attachments - 1] = arg;
2701 return 0;
2702 }
2703
2704 static void parse_meta_type(char *arg, char *type, int *index)
2705 {
2706 if (*arg) {
2707 *type = *arg;
2708 switch (*arg) {
2709 case 'g':
2710 break;
2711 case 's':
2712 case 'c':
2713 case 'p':
2714 if (*(++arg) == ':')
2715 *index = strtol(++arg, NULL, 0);
2716 break;
2717 default:
2718 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
2719 exit_program(1);
2720 }
2721 } else
2722 *type = 'g';
2723 }
2724
2725 static int opt_map_metadata(OptionsContext *o, const char *opt, const char *arg)
2726 {
2727 MetadataMap *m, *m1;
2728 char *p;
2729
2730 o->meta_data_maps = grow_array(o->meta_data_maps, sizeof(*o->meta_data_maps),
2731 &o->nb_meta_data_maps, o->nb_meta_data_maps + 1);
2732
2733 m = &o->meta_data_maps[o->nb_meta_data_maps - 1][1];
2734 m->file = strtol(arg, &p, 0);
2735 parse_meta_type(*p ? p + 1 : p, &m->type, &m->index);
2736
2737 m1 = &o->meta_data_maps[o->nb_meta_data_maps - 1][0];
2738 if (p = strchr(opt, ':'))
2739 parse_meta_type(p + 1, &m1->type, &m1->index);
2740 else
2741 m1->type = 'g';
2742
2743 if (m->type == 'g' || m1->type == 'g')
2744 o->metadata_global_manual = 1;
2745 if (m->type == 's' || m1->type == 's')
2746 o->metadata_streams_manual = 1;
2747 if (m->type == 'c' || m1->type == 'c')
2748 o->metadata_chapters_manual = 1;
2749
2750 return 0;
2751 }
2752
2753 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2754 {
2755 const char *codec_string = encoder ? "encoder" : "decoder";
2756 AVCodec *codec;
2757
2758 codec = encoder ?
2759 avcodec_find_encoder_by_name(name) :
2760 avcodec_find_decoder_by_name(name);
2761 if(!codec) {
2762 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
2763 exit_program(1);
2764 }
2765 if(codec->type != type) {
2766 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
2767 exit_program(1);
2768 }
2769 return codec;
2770 }
2771
2772 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
2773 {
2774 char *codec_name = NULL;
2775
2776 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
2777 if (codec_name) {
2778 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
2779 st->codec->codec_id = codec->id;
2780 return codec;
2781 } else
2782 return avcodec_find_decoder(st->codec->codec_id);
2783 }
2784
2785 /**
2786 * Add all the streams from the given input file to the global
2787 * list of input streams.
2788 */
2789 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
2790 {
2791 int i, rfps, rfps_base;
2792
2793 for (i = 0; i < ic->nb_streams; i++) {
2794 AVStream *st = ic->streams[i];
2795 AVCodecContext *dec = st->codec;
2796 InputStream *ist;
2797
2798 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2799 ist = &input_streams[nb_input_streams - 1];
2800 ist->st = st;
2801 ist->file_index = nb_input_files;
2802 ist->discard = 1;
2803 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2804
2805 ist->ts_scale = 1.0;
2806 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
2807
2808 ist->dec = choose_decoder(o, ic, st);
2809
2810 switch (dec->codec_type) {
2811 case AVMEDIA_TYPE_AUDIO:
2812 if (o->audio_disable)
2813 st->discard= AVDISCARD_ALL;
2814 break;
2815 case AVMEDIA_TYPE_VIDEO:
2816 rfps = ic->streams[i]->r_frame_rate.num;
2817 rfps_base = ic->streams[i]->r_frame_rate.den;
2818 if (dec->lowres) {
2819 dec->flags |= CODEC_FLAG_EMU_EDGE;
2820 dec->height >>= dec->lowres;
2821 dec->width >>= dec->lowres;
2822 }
2823
2824 if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
2825
2826 av_log(NULL, AV_LOG_INFO,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2827 i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
2828 (float)rfps / rfps_base, rfps, rfps_base);
2829 }
2830
2831 if (o->video_disable)
2832 st->discard= AVDISCARD_ALL;
2833 else if(video_discard)
2834 st->discard= video_discard;
2835 break;
2836 case AVMEDIA_TYPE_DATA:
2837 break;
2838 case AVMEDIA_TYPE_SUBTITLE:
2839 if (o->subtitle_disable)
2840 st->discard = AVDISCARD_ALL;
2841 break;
2842 case AVMEDIA_TYPE_ATTACHMENT:
2843 case AVMEDIA_TYPE_UNKNOWN:
2844 break;
2845 default:
2846 abort();
2847 }
2848 }
2849 }
2850
2851 static void assert_file_overwrite(const char *filename)
2852 {
2853 if (!file_overwrite &&
2854 (strchr(filename, ':') == NULL || filename[1] == ':' ||
2855 av_strstart(filename, "file:", NULL))) {
2856 if (avio_check(filename, 0) == 0) {
2857 if (!using_stdin) {
2858 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
2859 fflush(stderr);
2860 if (!read_yesno()) {
2861 fprintf(stderr, "Not overwriting - exiting\n");
2862 exit_program(1);
2863 }
2864 }
2865 else {
2866 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
2867 exit_program(1);
2868 }
2869 }
2870 }
2871 }
2872
2873 static void dump_attachment(AVStream *st, const char *filename)
2874 {
2875 int ret;
2876 AVIOContext *out = NULL;
2877 AVDictionaryEntry *e;
2878
2879 if (!st->codec->extradata_size) {
2880 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
2881 nb_input_files - 1, st->index);
2882 return;
2883 }
2884 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
2885 filename = e->value;
2886 if (!*filename) {
2887 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
2888 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
2889 exit_program(1);
2890 }
2891
2892 assert_file_overwrite(filename);
2893
2894 if ((ret = avio_open (&out, filename, AVIO_FLAG_WRITE)) < 0) {
2895 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
2896 filename);
2897 exit_program(1);
2898 }
2899
2900 avio_write(out, st->codec->extradata, st->codec->extradata_size);
2901 avio_flush(out);
2902 avio_close(out);
2903 }
2904
2905 static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
2906 {
2907 AVFormatContext *ic;
2908 AVInputFormat *file_iformat = NULL;
2909 int err, i, ret;
2910 int64_t timestamp;
2911 uint8_t buf[128];
2912 AVDictionary **opts;
2913 int orig_nb_streams; // number of streams before avformat_find_stream_info
2914
2915 if (o->format) {
2916 if (!(file_iformat = av_find_input_format(o->format))) {
2917 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
2918 exit_program(1);
2919 }
2920 }
2921
2922 if (!strcmp(filename, "-"))
2923 filename = "pipe:";
2924
2925 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2926 !strcmp(filename, "/dev/stdin");
2927
2928 /* get default parameters from command line */
2929 ic = avformat_alloc_context();
2930 if (!ic) {
2931 print_error(filename, AVERROR(ENOMEM));
2932 exit_program(1);
2933 }
2934 if (o->nb_audio_sample_rate) {
2935 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
2936 av_dict_set(&format_opts, "sample_rate", buf, 0);
2937 }
2938 if (o->nb_audio_channels) {
2939 snprintf(buf, sizeof(buf), "%d", o->audio_channels[o->nb_audio_channels - 1].u.i);
2940 av_dict_set(&format_opts, "channels", buf, 0);
2941 }
2942 if (o->nb_frame_rates) {
2943 av_dict_set(&format_opts, "framerate", o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
2944 }
2945 if (o->nb_frame_sizes) {
2946 av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
2947 }
2948 if (o->nb_frame_pix_fmts)
2949 av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
2950
2951 ic->flags |= AVFMT_FLAG_NONBLOCK;
2952
2953 /* open the input file with generic libav function */
2954 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
2955 if (err < 0) {
2956 print_error(filename, err);
2957 exit_program(1);
2958 }
2959 assert_avoptions(format_opts);
2960
2961 /* apply forced codec ids */
2962 for (i = 0; i < ic->nb_streams; i++)
2963 choose_decoder(o, ic, ic->streams[i]);
2964
2965 /* Set AVCodecContext options for avformat_find_stream_info */
2966 opts = setup_find_stream_info_opts(ic, codec_opts);
2967 orig_nb_streams = ic->nb_streams;
2968
2969 /* If not enough info to get the stream parameters, we decode the
2970 first frames to get it. (used in mpeg case for example) */
2971 ret = avformat_find_stream_info(ic, opts);
2972 if (ret < 0) {
2973 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
2974 av_close_input_file(ic);
2975 exit_program(1);
2976 }
2977
2978 timestamp = o->start_time;
2979 /* add the stream start time */
2980 if (ic->start_time != AV_NOPTS_VALUE)
2981 timestamp += ic->start_time;
2982
2983 /* if seeking requested, we execute it */
2984 if (o->start_time != 0) {
2985 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2986 if (ret < 0) {
2987 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
2988 filename, (double)timestamp / AV_TIME_BASE);
2989 }
2990 }
2991
2992 /* update the current parameters so that they match the one of the input stream */
2993 add_input_streams(o, ic);
2994
2995 /* dump the file content */
2996 av_dump_format(ic, nb_input_files, filename, 0);
2997
2998 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
2999 input_files[nb_input_files - 1].ctx = ic;
3000 input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
3001 input_files[nb_input_files - 1].ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
3002 input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
3003 input_files[nb_input_files - 1].rate_emu = o->rate_emu;
3004
3005 for (i = 0; i < o->nb_dump_attachment; i++) {
3006 int j;
3007
3008 for (j = 0; j < ic->nb_streams; j++) {
3009 AVStream *st = ic->streams[j];
3010
3011 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
3012 dump_attachment(st, o->dump_attachment[i].u.str);
3013 }
3014 }
3015
3016 for (i = 0; i < orig_nb_streams; i++)
3017 av_dict_free(&opts[i]);
3018 av_freep(&opts);
3019
3020 reset_options(o);
3021 return 0;
3022 }
3023
3024 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3025 AVCodecContext *avctx)
3026 {
3027 char *p;
3028 int n = 1, i;
3029 int64_t t;
3030
3031 for (p = kf; *p; p++)
3032 if (*p == ',')
3033 n++;
3034 ost->forced_kf_count = n;
3035 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3036 if (!ost->forced_kf_pts) {
3037 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3038 exit_program(1);
3039 }
3040 for (i = 0; i < n; i++) {
3041 p = i ? strchr(p, ',') + 1 : kf;
3042 t = parse_time_or_die("force_key_frames", p, 1);
3043 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3044 }
3045 }
3046
3047 static uint8_t *get_line(AVIOContext *s)
3048 {
3049 AVIOContext *line;
3050 uint8_t *buf;
3051 char c;
3052
3053 if (avio_open_dyn_buf(&line) < 0) {
3054 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
3055 exit_program(1);
3056 }
3057
3058 while ((c = avio_r8(s)) && c != '\n')
3059 avio_w8(line, c);
3060 avio_w8(line, 0);
3061 avio_close_dyn_buf(line, &buf);
3062
3063 return buf;
3064 }
3065
3066 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
3067 {
3068 int i, ret = 1;
3069 char filename[1000];
3070 const char *base[3] = { getenv("AVCONV_DATADIR"),
3071 getenv("HOME"),
3072 AVCONV_DATADIR,
3073 };
3074
3075 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret; i++) {
3076 if (!base[i])
3077 continue;
3078 if (codec_name) {
3079 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
3080 i != 1 ? "" : "/.avconv", codec_name, preset_name);
3081 ret = avio_open(s, filename, AVIO_FLAG_READ);
3082 }
3083 if (ret) {
3084 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
3085 i != 1 ? "" : "/.avconv", preset_name);
3086 ret = avio_open(s, filename, AVIO_FLAG_READ);
3087 }
3088 }
3089 return ret;
3090 }
3091
3092 static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
3093 {
3094 char *codec_name = NULL;
3095
3096 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
3097 if (!codec_name) {
3098 ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
3099 NULL, ost->st->codec->codec_type);
3100 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
3101 } else if (!strcmp(codec_name, "copy"))
3102 ost->stream_copy = 1;
3103 else {
3104 ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
3105 ost->st->codec->codec_id = ost->enc->id;
3106 }
3107 }
3108
3109 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
3110 {
3111 OutputStream *ost;
3112 AVStream *st = avformat_new_stream(oc, NULL);
3113 int idx = oc->nb_streams - 1, ret = 0;
3114 char *bsf = NULL, *next, *codec_tag = NULL;
3115 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
3116 double qscale = -1;
3117 char *buf = NULL, *arg = NULL, *preset = NULL;
3118 AVIOContext *s = NULL;
3119
3120 if (!st) {
3121 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
3122 exit_program(1);
3123 }
3124
3125 if (oc->nb_streams - 1 < o->nb_streamid_map)
3126 st->id = o->streamid_map[oc->nb_streams - 1];
3127
3128 output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3129 nb_output_streams + 1);
3130 ost = &output_streams[nb_output_streams - 1];
3131 ost->file_index = nb_output_files;
3132 ost->index = idx;
3133 ost->st = st;
3134 st->codec->codec_type = type;
3135 choose_encoder(o, oc, ost);
3136 if (ost->enc) {
3137 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3138 }
3139
3140 avcodec_get_context_defaults3(st->codec, ost->enc);
3141 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3142
3143 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
3144 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
3145 do {
3146 buf = get_line(s);
3147 if (!buf[0] || buf[0] == '#') {
3148 av_free(buf);
3149 continue;
3150 }
3151 if (!(arg = strchr(buf, '='))) {
3152 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
3153 exit_program(1);
3154 }
3155 *arg++ = 0;
3156 av_dict_set(&ost->opts, buf, arg, AV_DICT_DONT_OVERWRITE);
3157 av_free(buf);
3158 } while (!s->eof_reached);
3159 avio_close(s);
3160 }
3161 if (ret) {
3162 av_lo