avconv: only allocate 1 AVFrame per input stream
[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 = 1;
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 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
141
142 typedef struct InputStream {
143 int file_index;
144 AVStream *st;
145 int discard; /* true if stream data should be discarded */
146 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
147 AVCodec *dec;
148 AVFrame *decoded_frame;
149 AVFrame *filtered_frame;
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 *ctx)
507 {
508 return received_nb_signals > 1;
509 }
510
511 static const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
512
513 void exit_program(int ret)
514 {
515 int i;
516
517 /* close files */
518 for(i=0;i<nb_output_files;i++) {
519 AVFormatContext *s = output_files[i].ctx;
520 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
521 avio_close(s->pb);
522 avformat_free_context(s);
523 av_dict_free(&output_files[i].opts);
524 }
525 for(i=0;i<nb_input_files;i++) {
526 av_close_input_file(input_files[i].ctx);
527 }
528 for (i = 0; i < nb_input_streams; i++) {
529 av_freep(&input_streams[i].decoded_frame);
530 av_freep(&input_streams[i].filtered_frame);
531 av_dict_free(&input_streams[i].opts);
532 }
533
534 if (vstats_file)
535 fclose(vstats_file);
536 av_free(vstats_filename);
537
538 av_freep(&input_streams);
539 av_freep(&input_files);
540 av_freep(&output_streams);
541 av_freep(&output_files);
542
543 uninit_opts();
544 av_free(audio_buf);
545 av_free(audio_out);
546 allocated_audio_buf_size= allocated_audio_out_size= 0;
547
548 #if CONFIG_AVFILTER
549 avfilter_uninit();
550 #endif
551 avformat_network_deinit();
552
553 if (received_sigterm) {
554 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
555 (int) received_sigterm);
556 exit (255);
557 }
558
559 exit(ret); /* not all OS-es handle main() return value */
560 }
561
562 static void assert_avoptions(AVDictionary *m)
563 {
564 AVDictionaryEntry *t;
565 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
566 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
567 exit_program(1);
568 }
569 }
570
571 static void assert_codec_experimental(AVCodecContext *c, int encoder)
572 {
573 const char *codec_string = encoder ? "encoder" : "decoder";
574 AVCodec *codec;
575 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
576 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
577 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
578 "results.\nAdd '-strict experimental' if you want to use it.\n",
579 codec_string, c->codec->name);
580 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
581 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
582 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
583 codec_string, codec->name);
584 exit_program(1);
585 }
586 }
587
588 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
589 {
590 if(codec && codec->sample_fmts){
591 const enum AVSampleFormat *p= codec->sample_fmts;
592 for(; *p!=-1; p++){
593 if(*p == st->codec->sample_fmt)
594 break;
595 }
596 if (*p == -1) {
597 av_log(NULL, AV_LOG_WARNING,
598 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
599 av_get_sample_fmt_name(st->codec->sample_fmt),
600 codec->name,
601 av_get_sample_fmt_name(codec->sample_fmts[0]));
602 st->codec->sample_fmt = codec->sample_fmts[0];
603 }
604 }
605 }
606
607 /**
608 * Update the requested input sample format based on the output sample format.
609 * This is currently only used to request float output from decoders which
610 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
611 * Ideally this will be removed in the future when decoders do not do format
612 * conversion and only output in their native format.
613 */
614 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
615 AVCodecContext *enc)
616 {
617 /* if sample formats match or a decoder sample format has already been
618 requested, just return */
619 if (enc->sample_fmt == dec->sample_fmt ||
620 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
621 return;
622
623 /* if decoder supports more than one output format */
624 if (dec_codec && dec_codec->sample_fmts &&
625 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
626 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
627 const enum AVSampleFormat *p;
628 int min_dec = -1, min_inc = -1;
629
630 /* find a matching sample format in the encoder */
631 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
632 if (*p == enc->sample_fmt) {
633 dec->request_sample_fmt = *p;
634 return;
635 } else if (*p > enc->sample_fmt) {
636 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
637 } else
638 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
639 }
640
641 /* if none match, provide the one that matches quality closest */
642 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
643 enc->sample_fmt - min_dec;
644 }
645 }
646
647 static void choose_sample_rate(AVStream *st, AVCodec *codec)
648 {
649 if(codec && codec->supported_samplerates){
650 const int *p= codec->supported_samplerates;
651 int best=0;
652 int best_dist=INT_MAX;
653 for(; *p; p++){
654 int dist= abs(st->codec->sample_rate - *p);
655 if(dist < best_dist){
656 best_dist= dist;
657 best= *p;
658 }
659 }
660 if(best_dist){
661 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
662 }
663 st->codec->sample_rate= best;
664 }
665 }
666
667 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
668 {
669 if(codec && codec->pix_fmts){
670 const enum PixelFormat *p= codec->pix_fmts;
671 if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
672 if(st->codec->codec_id==CODEC_ID_MJPEG){
673 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
674 }else if(st->codec->codec_id==CODEC_ID_LJPEG){
675 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};
676 }
677 }
678 for (; *p != PIX_FMT_NONE; p++) {
679 if(*p == st->codec->pix_fmt)
680 break;
681 }
682 if (*p == PIX_FMT_NONE) {
683 if(st->codec->pix_fmt != PIX_FMT_NONE)
684 av_log(NULL, AV_LOG_WARNING,
685 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
686 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
687 codec->name,
688 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
689 st->codec->pix_fmt = codec->pix_fmts[0];
690 }
691 }
692 }
693
694 static double
695 get_sync_ipts(const OutputStream *ost)
696 {
697 const InputStream *ist = ost->sync_ist;
698 OutputFile *of = &output_files[ost->file_index];
699 return (double)(ist->pts - of->start_time)/AV_TIME_BASE;
700 }
701
702 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
703 int ret;
704
705 while(bsfc){
706 AVPacket new_pkt= *pkt;
707 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
708 &new_pkt.data, &new_pkt.size,
709 pkt->data, pkt->size,
710 pkt->flags & AV_PKT_FLAG_KEY);
711 if(a>0){
712 av_free_packet(pkt);
713 new_pkt.destruct= av_destruct_packet;
714 } else if(a<0){
715 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
716 bsfc->filter->name, pkt->stream_index,
717 avctx->codec ? avctx->codec->name : "copy");
718 print_error("", a);
719 if (exit_on_error)
720 exit_program(1);
721 }
722 *pkt= new_pkt;
723
724 bsfc= bsfc->next;
725 }
726
727 ret= av_interleaved_write_frame(s, pkt);
728 if(ret < 0){
729 print_error("av_interleaved_write_frame()", ret);
730 exit_program(1);
731 }
732 }
733
734 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
735 {
736 int fill_char = 0x00;
737 if (sample_fmt == AV_SAMPLE_FMT_U8)
738 fill_char = 0x80;
739 memset(buf, fill_char, size);
740 }
741
742 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
743 InputStream *ist, AVFrame *decoded_frame)
744 {
745 uint8_t *buftmp;
746 int64_t audio_out_size, audio_buf_size;
747
748 int size_out, frame_bytes, ret, resample_changed;
749 AVCodecContext *enc= ost->st->codec;
750 AVCodecContext *dec= ist->st->codec;
751 int osize = av_get_bytes_per_sample(enc->sample_fmt);
752 int isize = av_get_bytes_per_sample(dec->sample_fmt);
753 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
754 uint8_t *buf = decoded_frame->data[0];
755 int size = decoded_frame->nb_samples * dec->channels * isize;
756 int64_t allocated_for_size = size;
757
758 need_realloc:
759 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
760 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
761 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
762 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
763 audio_buf_size*= osize*enc->channels;
764
765 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
766 if(coded_bps > 8*osize)
767 audio_out_size= audio_out_size * coded_bps / (8*osize);
768 audio_out_size += FF_MIN_BUFFER_SIZE;
769
770 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
771 av_log(NULL, AV_LOG_FATAL, "Buffer sizes too large\n");
772 exit_program(1);
773 }
774
775 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
776 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
777 if (!audio_buf || !audio_out){
778 av_log(NULL, AV_LOG_FATAL, "Out of memory in do_audio_out\n");
779 exit_program(1);
780 }
781
782 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
783 ost->audio_resample = 1;
784
785 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
786 ost->resample_channels != dec->channels ||
787 ost->resample_sample_rate != dec->sample_rate;
788
789 if ((ost->audio_resample && !ost->resample) || resample_changed) {
790 if (resample_changed) {
791 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",
792 ist->file_index, ist->st->index,
793 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
794 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
795 ost->resample_sample_fmt = dec->sample_fmt;
796 ost->resample_channels = dec->channels;
797 ost->resample_sample_rate = dec->sample_rate;
798 if (ost->resample)
799 audio_resample_close(ost->resample);
800 }
801 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
802 if (audio_sync_method <= 1 &&
803 ost->resample_sample_fmt == enc->sample_fmt &&
804 ost->resample_channels == enc->channels &&
805 ost->resample_sample_rate == enc->sample_rate) {
806 ost->resample = NULL;
807 ost->audio_resample = 0;
808 } else if (ost->audio_resample) {
809 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
810 av_log(NULL, AV_LOG_WARNING, "Using s16 intermediate sample format for resampling\n");
811 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
812 enc->sample_rate, dec->sample_rate,
813 enc->sample_fmt, dec->sample_fmt,
814 16, 10, 0, 0.8);
815 if (!ost->resample) {
816 av_log(NULL, AV_LOG_FATAL, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
817 dec->channels, dec->sample_rate,
818 enc->channels, enc->sample_rate);
819 exit_program(1);
820 }
821 }
822 }
823
824 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
825 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
826 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
827 if (ost->reformat_ctx)
828 av_audio_convert_free(ost->reformat_ctx);
829 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
830 dec->sample_fmt, 1, NULL, 0);
831 if (!ost->reformat_ctx) {
832 av_log(NULL, AV_LOG_FATAL, "Cannot convert %s sample format to %s sample format\n",
833 av_get_sample_fmt_name(dec->sample_fmt),
834 av_get_sample_fmt_name(enc->sample_fmt));
835 exit_program(1);
836 }
837 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
838 }
839
840 if(audio_sync_method){
841 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
842 - av_fifo_size(ost->fifo)/(enc->channels * osize);
843 int idelta = delta * dec->sample_rate / enc->sample_rate;
844 int byte_delta = idelta * isize * dec->channels;
845
846 //FIXME resample delay
847 if(fabs(delta) > 50){
848 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
849 if(byte_delta < 0){
850 byte_delta= FFMAX(byte_delta, -size);
851 size += byte_delta;
852 buf -= byte_delta;
853 av_log(NULL, AV_LOG_VERBOSE, "discarding %d audio samples\n",
854 -byte_delta / (isize * dec->channels));
855 if(!size)
856 return;
857 ist->is_start=0;
858 }else{
859 static uint8_t *input_tmp= NULL;
860 input_tmp= av_realloc(input_tmp, byte_delta + size);
861
862 if(byte_delta > allocated_for_size - size){
863 allocated_for_size= byte_delta + (int64_t)size;
864 goto need_realloc;
865 }
866 ist->is_start=0;
867
868 generate_silence(input_tmp, dec->sample_fmt, byte_delta);
869 memcpy(input_tmp + byte_delta, buf, size);
870 buf= input_tmp;
871 size += byte_delta;
872 av_log(NULL, AV_LOG_VERBOSE, "adding %d audio samples of silence\n", idelta);
873 }
874 }else if(audio_sync_method>1){
875 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
876 av_assert0(ost->audio_resample);
877 av_log(NULL, AV_LOG_VERBOSE, "compensating audio timestamp drift:%f compensation:%d in:%d\n",
878 delta, comp, enc->sample_rate);
879 // 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));
880 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
881 }
882 }
883 }else
884 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
885 - av_fifo_size(ost->fifo)/(enc->channels * osize); //FIXME wrong
886
887 if (ost->audio_resample) {
888 buftmp = audio_buf;
889 size_out = audio_resample(ost->resample,
890 (short *)buftmp, (short *)buf,
891 size / (dec->channels * isize));
892 size_out = size_out * enc->channels * osize;
893 } else {
894 buftmp = buf;
895 size_out = size;
896 }
897
898 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
899 const void *ibuf[6]= {buftmp};
900 void *obuf[6]= {audio_buf};
901 int istride[6]= {isize};
902 int ostride[6]= {osize};
903 int len= size_out/istride[0];
904 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
905 printf("av_audio_convert() failed\n");
906 if (exit_on_error)
907 exit_program(1);
908 return;
909 }
910 buftmp = audio_buf;
911 size_out = len*osize;
912 }
913
914 /* now encode as many frames as possible */
915 if (enc->frame_size > 1) {
916 /* output resampled raw samples */
917 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
918 av_log(NULL, AV_LOG_FATAL, "av_fifo_realloc2() failed\n");
919 exit_program(1);
920 }
921 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
922
923 frame_bytes = enc->frame_size * osize * enc->channels;
924
925 while (av_fifo_size(ost->fifo) >= frame_bytes) {
926 AVPacket pkt;
927 av_init_packet(&pkt);
928
929 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
930
931 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
932
933 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
934 (short *)audio_buf);
935 if (ret < 0) {
936 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
937 exit_program(1);
938 }
939 audio_size += ret;
940 pkt.stream_index= ost->index;
941 pkt.data= audio_out;
942 pkt.size= ret;
943 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
944 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
945 pkt.flags |= AV_PKT_FLAG_KEY;
946 write_frame(s, &pkt, enc, ost->bitstream_filters);
947
948 ost->sync_opts += enc->frame_size;
949 }
950 } else {
951 AVPacket pkt;
952 av_init_packet(&pkt);
953
954 ost->sync_opts += size_out / (osize * enc->channels);
955
956 /* output a pcm frame */
957 /* determine the size of the coded buffer */
958 size_out /= osize;
959 if (coded_bps)
960 size_out = size_out*coded_bps/8;
961
962 if(size_out > audio_out_size){
963 av_log(NULL, AV_LOG_FATAL, "Internal error, buffer size too small\n");
964 exit_program(1);
965 }
966
967 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
968 ret = avcodec_encode_audio(enc, audio_out, size_out,
969 (short *)buftmp);
970 if (ret < 0) {
971 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
972 exit_program(1);
973 }
974 audio_size += ret;
975 pkt.stream_index= ost->index;
976 pkt.data= audio_out;
977 pkt.size= ret;
978 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
979 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
980 pkt.flags |= AV_PKT_FLAG_KEY;
981 write_frame(s, &pkt, enc, ost->bitstream_filters);
982 }
983 }
984
985 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
986 {
987 AVCodecContext *dec;
988 AVPicture *picture2;
989 AVPicture picture_tmp;
990 uint8_t *buf = 0;
991
992 dec = ist->st->codec;
993
994 /* deinterlace : must be done before any resize */
995 if (do_deinterlace) {
996 int size;
997
998 /* create temporary picture */
999 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1000 buf = av_malloc(size);
1001 if (!buf)
1002 return;
1003
1004 picture2 = &picture_tmp;
1005 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1006
1007 if(avpicture_deinterlace(picture2, picture,
1008 dec->pix_fmt, dec->width, dec->height) < 0) {
1009 /* if error, do not deinterlace */
1010 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
1011 av_free(buf);
1012 buf = NULL;
1013 picture2 = picture;
1014 }
1015 } else {
1016 picture2 = picture;
1017 }
1018
1019 if (picture != picture2)
1020 *picture = *picture2;
1021 *bufp = buf;
1022 }
1023
1024 static void do_subtitle_out(AVFormatContext *s,
1025 OutputStream *ost,
1026 InputStream *ist,
1027 AVSubtitle *sub,
1028 int64_t pts)
1029 {
1030 static uint8_t *subtitle_out = NULL;
1031 int subtitle_out_max_size = 1024 * 1024;
1032 int subtitle_out_size, nb, i;
1033 AVCodecContext *enc;
1034 AVPacket pkt;
1035
1036 if (pts == AV_NOPTS_VALUE) {
1037 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
1038 if (exit_on_error)
1039 exit_program(1);
1040 return;
1041 }
1042
1043 enc = ost->st->codec;
1044
1045 if (!subtitle_out) {
1046 subtitle_out = av_malloc(subtitle_out_max_size);
1047 }
1048
1049 /* Note: DVB subtitle need one packet to draw them and one other
1050 packet to clear them */
1051 /* XXX: signal it in the codec context ? */
1052 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1053 nb = 2;
1054 else
1055 nb = 1;
1056
1057 for(i = 0; i < nb; i++) {
1058 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1059 // start_display_time is required to be 0
1060 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1061 sub->end_display_time -= sub->start_display_time;
1062 sub->start_display_time = 0;
1063 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1064 subtitle_out_max_size, sub);
1065 if (subtitle_out_size < 0) {
1066 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
1067 exit_program(1);
1068 }
1069
1070 av_init_packet(&pkt);
1071 pkt.stream_index = ost->index;
1072 pkt.data = subtitle_out;
1073 pkt.size = subtitle_out_size;
1074 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1075 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1076 /* XXX: the pts correction is handled here. Maybe handling
1077 it in the codec would be better */
1078 if (i == 0)
1079 pkt.pts += 90 * sub->start_display_time;
1080 else
1081 pkt.pts += 90 * sub->end_display_time;
1082 }
1083 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1084 }
1085 }
1086
1087 static int bit_buffer_size= 1024*256;
1088 static uint8_t *bit_buffer= NULL;
1089
1090 static void do_video_resample(OutputStream *ost,
1091 InputStream *ist,
1092 AVFrame *in_picture,
1093 AVFrame **out_picture)
1094 {
1095 int resample_changed = 0;
1096 AVCodecContext *dec = ist->st->codec;
1097 *out_picture = in_picture;
1098
1099 resample_changed = ost->resample_width != dec->width ||
1100 ost->resample_height != dec->height ||
1101 ost->resample_pix_fmt != dec->pix_fmt;
1102
1103 if (resample_changed) {
1104 av_log(NULL, AV_LOG_INFO,
1105 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1106 ist->file_index, ist->st->index,
1107 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1108 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt));
1109 if(!ost->video_resample)
1110 ost->video_resample = 1;
1111 }
1112
1113 #if !CONFIG_AVFILTER
1114 if (ost->video_resample) {
1115 *out_picture = &ost->pict_tmp;
1116 if (resample_changed) {
1117 /* initialize a new scaler context */
1118 sws_freeContext(ost->img_resample_ctx);
1119 ost->img_resample_ctx = sws_getContext(
1120 ist->st->codec->width,
1121 ist->st->codec->height,
1122 ist->st->codec->pix_fmt,
1123 ost->st->codec->width,
1124 ost->st->codec->height,
1125 ost->st->codec->pix_fmt,
1126 ost->sws_flags, NULL, NULL, NULL);
1127 if (ost->img_resample_ctx == NULL) {
1128 av_log(NULL, AV_LOG_FATAL, "Cannot get resampling context\n");
1129 exit_program(1);
1130 }
1131 }
1132 sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1133 0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1134 }
1135 #else
1136 if (resample_changed) {
1137 avfilter_graph_free(&ost->graph);
1138 if (configure_video_filters(ist, ost)) {
1139 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1140 exit_program(1);
1141 }
1142 }
1143 #endif
1144 if (resample_changed) {
1145 ost->resample_width = dec->width;
1146 ost->resample_height = dec->height;
1147 ost->resample_pix_fmt = dec->pix_fmt;
1148 }
1149 }
1150
1151
1152 static void do_video_out(AVFormatContext *s,
1153 OutputStream *ost,
1154 InputStream *ist,
1155 AVFrame *in_picture,
1156 int *frame_size, float quality)
1157 {
1158 int nb_frames, i, ret, format_video_sync;
1159 AVFrame *final_picture;
1160 AVCodecContext *enc;
1161 double sync_ipts;
1162
1163 enc = ost->st->codec;
1164
1165 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1166
1167 /* by default, we output a single frame */
1168 nb_frames = 1;
1169
1170 *frame_size = 0;
1171
1172 format_video_sync = video_sync_method;
1173 if (format_video_sync < 0)
1174 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? 0 :
1175 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1176
1177 if (format_video_sync) {
1178 double vdelta = sync_ipts - ost->sync_opts;
1179 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1180 if (vdelta < -1.1)
1181 nb_frames = 0;
1182 else if (format_video_sync == 2) {
1183 if(vdelta<=-0.6){
1184 nb_frames=0;
1185 }else if(vdelta>0.6)
1186 ost->sync_opts= lrintf(sync_ipts);
1187 }else if (vdelta > 1.1)
1188 nb_frames = lrintf(vdelta);
1189 //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);
1190 if (nb_frames == 0){
1191 ++nb_frames_drop;
1192 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
1193 }else if (nb_frames > 1) {
1194 nb_frames_dup += nb_frames - 1;
1195 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames-1);
1196 }
1197 }else
1198 ost->sync_opts= lrintf(sync_ipts);
1199
1200 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
1201 if (nb_frames <= 0)
1202 return;
1203
1204 do_video_resample(ost, ist, in_picture, &final_picture);
1205
1206 /* duplicates frame if needed */
1207 for(i=0;i<nb_frames;i++) {
1208 AVPacket pkt;
1209 av_init_packet(&pkt);
1210 pkt.stream_index= ost->index;
1211
1212 if (s->oformat->flags & AVFMT_RAWPICTURE &&
1213 enc->codec->id == CODEC_ID_RAWVIDEO) {
1214 /* raw pictures are written as AVPicture structure to
1215 avoid any copies. We support temporarily the older
1216 method. */
1217 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1218 enc->coded_frame->top_field_first = in_picture->top_field_first;
1219 pkt.data= (uint8_t *)final_picture;
1220 pkt.size= sizeof(AVPicture);
1221 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1222 pkt.flags |= AV_PKT_FLAG_KEY;
1223
1224 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1225 } else {
1226 AVFrame big_picture;
1227
1228 big_picture= *final_picture;
1229 /* better than nothing: use input picture interlaced
1230 settings */
1231 big_picture.interlaced_frame = in_picture->interlaced_frame;
1232 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1233 if (ost->top_field_first == -1)
1234 big_picture.top_field_first = in_picture->top_field_first;
1235 else
1236 big_picture.top_field_first = !!ost->top_field_first;
1237 }
1238
1239 /* handles same_quant here. This is not correct because it may
1240 not be a global option */
1241 big_picture.quality = quality;
1242 if (!enc->me_threshold)
1243 big_picture.pict_type = 0;
1244 // big_picture.pts = AV_NOPTS_VALUE;
1245 big_picture.pts= ost->sync_opts;
1246 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1247 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1248 if (ost->forced_kf_index < ost->forced_kf_count &&
1249 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1250 big_picture.pict_type = AV_PICTURE_TYPE_I;
1251 ost->forced_kf_index++;
1252 }
1253 ret = avcodec_encode_video(enc,
1254 bit_buffer, bit_buffer_size,
1255 &big_picture);
1256 if (ret < 0) {
1257 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1258 exit_program(1);
1259 }
1260
1261 if(ret>0){
1262 pkt.data= bit_buffer;
1263 pkt.size= ret;
1264 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1265 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1266 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1267 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1268 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1269
1270 if(enc->coded_frame->key_frame)
1271 pkt.flags |= AV_PKT_FLAG_KEY;
1272 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1273 *frame_size = ret;
1274 video_size += ret;
1275 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1276 // enc->frame_number-1, ret, enc->pict_type);
1277 /* if two pass, output log */
1278 if (ost->logfile && enc->stats_out) {
1279 fprintf(ost->logfile, "%s", enc->stats_out);
1280 }
1281 }
1282 }
1283 ost->sync_opts++;
1284 ost->frame_number++;
1285 }
1286 }
1287
1288 static double psnr(double d){
1289 return -10.0*log(d)/log(10.0);
1290 }
1291
1292 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1293 int frame_size)
1294 {
1295 AVCodecContext *enc;
1296 int frame_number;
1297 double ti1, bitrate, avg_bitrate;
1298
1299 /* this is executed just the first time do_video_stats is called */
1300 if (!vstats_file) {
1301 vstats_file = fopen(vstats_filename, "w");
1302 if (!vstats_file) {
1303 perror("fopen");
1304 exit_program(1);
1305 }
1306 }
1307
1308 enc = ost->st->codec;
1309 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1310 frame_number = ost->frame_number;
1311 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1312 if (enc->flags&CODEC_FLAG_PSNR)
1313 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1314
1315 fprintf(vstats_file,"f_size= %6d ", frame_size);
1316 /* compute pts value */
1317 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1318 if (ti1 < 0.01)
1319 ti1 = 0.01;
1320
1321 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1322 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1323 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1324 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1325 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1326 }
1327 }
1328
1329 static void print_report(OutputFile *output_files,
1330 OutputStream *ost_table, int nb_ostreams,
1331 int is_last_report, int64_t timer_start)
1332 {
1333 char buf[1024];
1334 OutputStream *ost;
1335 AVFormatContext *oc;
1336 int64_t total_size;
1337 AVCodecContext *enc;
1338 int frame_number, vid, i;
1339 double bitrate, ti1, pts;
1340 static int64_t last_time = -1;
1341 static int qp_histogram[52];
1342
1343 if (!print_stats && !is_last_report)
1344 return;
1345
1346 if (!is_last_report) {
1347 int64_t cur_time;
1348 /* display the report every 0.5 seconds */
1349 cur_time = av_gettime();
1350 if (last_time == -1) {
1351 last_time = cur_time;
1352 return;
1353 }
1354 if ((cur_time - last_time) < 500000)
1355 return;
1356 last_time = cur_time;
1357 }
1358
1359
1360 oc = output_files[0].ctx;
1361
1362 total_size = avio_size(oc->pb);
1363 if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1364 total_size= avio_tell(oc->pb);
1365
1366 buf[0] = '\0';
1367 ti1 = 1e10;
1368 vid = 0;
1369 for(i=0;i<nb_ostreams;i++) {
1370 float q = -1;
1371 ost = &ost_table[i];
1372 enc = ost->st->codec;
1373 if (!ost->stream_copy && enc->coded_frame)
1374 q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1375 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1376 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1377 }
1378 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1379 float t = (av_gettime()-timer_start) / 1000000.0;
1380
1381 frame_number = ost->frame_number;
1382 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1383 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1384 if(is_last_report)
1385 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1386 if(qp_hist){
1387 int j;
1388 int qp = lrintf(q);
1389 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1390 qp_histogram[qp]++;
1391 for(j=0; j<32; j++)
1392 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1393 }
1394 if (enc->flags&CODEC_FLAG_PSNR){
1395 int j;
1396 double error, error_sum=0;
1397 double scale, scale_sum=0;
1398 char type[3]= {'Y','U','V'};
1399 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1400 for(j=0; j<3; j++){
1401 if(is_last_report){
1402 error= enc->error[j];
1403 scale= enc->width*enc->height*255.0*255.0*frame_number;
1404 }else{
1405 error= enc->coded_frame->error[j];
1406 scale= enc->width*enc->height*255.0*255.0;
1407 }
1408 if(j) scale/=4;
1409 error_sum += error;
1410 scale_sum += scale;
1411 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1412 }
1413 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1414 }
1415 vid = 1;
1416 }
1417 /* compute min output value */
1418 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1419 if ((pts < ti1) && (pts > 0))
1420 ti1 = pts;
1421 }
1422 if (ti1 < 0.01)
1423 ti1 = 0.01;
1424
1425 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1426
1427 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1428 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1429 (double)total_size / 1024, ti1, bitrate);
1430
1431 if (nb_frames_dup || nb_frames_drop)
1432 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1433 nb_frames_dup, nb_frames_drop);
1434
1435 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1436
1437 fflush(stderr);
1438
1439 if (is_last_report) {
1440 int64_t raw= audio_size + video_size + extra_size;
1441 av_log(NULL, AV_LOG_INFO, "\n");
1442 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1443 video_size/1024.0,
1444 audio_size/1024.0,
1445 extra_size/1024.0,
1446 100.0*(total_size - raw)/raw
1447 );
1448 }
1449 }
1450
1451 static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
1452 {
1453 int i, ret;
1454
1455 for (i = 0; i < nb_ostreams; i++) {
1456 OutputStream *ost = &ost_table[i];
1457 AVCodecContext *enc = ost->st->codec;
1458 AVFormatContext *os = output_files[ost->file_index].ctx;
1459
1460 if (!ost->encoding_needed)
1461 continue;
1462
1463 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1464 continue;
1465 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == CODEC_ID_RAWVIDEO)
1466 continue;
1467
1468 for(;;) {
1469 AVPacket pkt;
1470 int fifo_bytes;
1471 av_init_packet(&pkt);
1472 pkt.stream_index= ost->index;
1473
1474 switch (ost->st->codec->codec_type) {
1475 case AVMEDIA_TYPE_AUDIO:
1476 fifo_bytes = av_fifo_size(ost->fifo);
1477 ret = 0;
1478 /* encode any samples remaining in fifo */
1479 if (fifo_bytes > 0) {
1480 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1481 int fs_tmp = enc->frame_size;
1482
1483 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1484 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1485 enc->frame_size = fifo_bytes / (osize * enc->channels);
1486 } else { /* pad */
1487 int frame_bytes = enc->frame_size*osize*enc->channels;
1488 if (allocated_audio_buf_size < frame_bytes)
1489 exit_program(1);
1490 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1491 }
1492
1493 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1494 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1495 ost->st->time_base.num, enc->sample_rate);
1496 enc->frame_size = fs_tmp;
1497 }
1498 if (ret <= 0) {
1499 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1500 }
1501 if (ret < 0) {
1502 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
1503 exit_program(1);
1504 }
1505 audio_size += ret;
1506 pkt.flags |= AV_PKT_FLAG_KEY;
1507 break;
1508 case AVMEDIA_TYPE_VIDEO:
1509 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1510 if (ret < 0) {
1511 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1512 exit_program(1);
1513 }
1514 video_size += ret;
1515 if(enc->coded_frame && enc->coded_frame->key_frame)
1516 pkt.flags |= AV_PKT_FLAG_KEY;
1517 if (ost->logfile && enc->stats_out) {
1518 fprintf(ost->logfile, "%s", enc->stats_out);
1519 }
1520 break;
1521 default:
1522 ret=-1;
1523 }
1524
1525 if (ret <= 0)
1526 break;
1527 pkt.data = bit_buffer;
1528 pkt.size = ret;
1529 if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1530 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1531 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1532 }
1533 }
1534 }
1535
1536 /*
1537 * Check whether a packet from ist should be written into ost at this time
1538 */
1539 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1540 {
1541 OutputFile *of = &output_files[ost->file_index];
1542 int ist_index = ist - input_streams;
1543
1544 if (ost->source_index != ist_index)
1545 return 0;
1546
1547 if (of->start_time && ist->pts < of->start_time)
1548 return 0;
1549
1550 if (of->recording_time != INT64_MAX &&
1551 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1552 (AVRational){1, 1000000}) >= 0) {
1553 ost->is_past_recording_time = 1;
1554 return 0;
1555 }
1556
1557 return 1;
1558 }
1559
1560 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1561 {
1562 OutputFile *of = &output_files[ost->file_index];
1563 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1564 AVPacket opkt;
1565
1566 av_init_packet(&opkt);
1567
1568 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1569 !ost->copy_initial_nonkeyframes)
1570 return;
1571
1572 /* force the input stream PTS */
1573 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1574 audio_size += pkt->size;
1575 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1576 video_size += pkt->size;
1577 ost->sync_opts++;
1578 }
1579
1580 opkt.stream_index = ost->index;
1581 if (pkt->pts != AV_NOPTS_VALUE)
1582 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1583 else
1584 opkt.pts = AV_NOPTS_VALUE;
1585
1586 if (pkt->dts == AV_NOPTS_VALUE)
1587 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1588 else
1589 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1590 opkt.dts -= ost_tb_start_time;
1591
1592 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1593 opkt.flags = pkt->flags;
1594
1595 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1596 if( ost->st->codec->codec_id != CODEC_ID_H264
1597 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1598 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1599 ) {
1600 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1601 opkt.destruct = av_destruct_packet;
1602 } else {
1603 opkt.data = pkt->data;
1604 opkt.size = pkt->size;
1605 }
1606
1607 write_frame(of->ctx, &opkt, ost->st->codec, ost->bitstream_filters);
1608 ost->st->codec->frame_number++;
1609 ost->frame_number++;
1610 av_free_packet(&opkt);
1611 }
1612
1613 static void rate_emu_sleep(InputStream *ist)
1614 {
1615 if (input_files[ist->file_index].rate_emu) {
1616 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1617 int64_t now = av_gettime() - ist->start;
1618 if (pts > now)
1619 usleep(pts - now);
1620 }
1621 }
1622
1623 static int transcode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1624 {
1625 AVFrame *decoded_frame;
1626 AVCodecContext *avctx = ist->st->codec;
1627 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1628 int i, ret;
1629
1630 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1631 return AVERROR(ENOMEM);
1632 else
1633 avcodec_get_frame_defaults(ist->decoded_frame);
1634 decoded_frame = ist->decoded_frame;
1635
1636 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1637 if (ret < 0) {
1638 return ret;
1639 }
1640
1641 if (!*got_output) {
1642 /* no audio frame */
1643 return ret;
1644 }
1645
1646 /* if the decoder provides a pts, use it instead of the last packet pts.
1647 the decoder could be delaying output by a packet or more. */
1648 if (decoded_frame->pts != AV_NOPTS_VALUE)
1649 ist->next_pts = decoded_frame->pts;
1650
1651 /* increment next_pts to use for the case where the input stream does not
1652 have timestamps or there are multiple frames in the packet */
1653 ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1654 avctx->sample_rate;
1655
1656 // preprocess audio (volume)
1657 if (audio_volume != 256) {
1658 int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps;
1659 void *samples = decoded_frame->data[0];
1660 switch (avctx->sample_fmt) {
1661 case AV_SAMPLE_FMT_U8:
1662 {
1663 uint8_t *volp = samples;
1664 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1665 int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
1666 *volp++ = av_clip_uint8(v);
1667 }
1668 break;
1669 }
1670 case AV_SAMPLE_FMT_S16:
1671 {
1672 int16_t *volp = samples;
1673 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1674 int v = ((*volp) * audio_volume + 128) >> 8;
1675 *volp++ = av_clip_int16(v);
1676 }
1677 break;
1678 }
1679 case AV_SAMPLE_FMT_S32:
1680 {
1681 int32_t *volp = samples;
1682 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1683 int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
1684 *volp++ = av_clipl_int32(v);
1685 }
1686 break;
1687 }
1688 case AV_SAMPLE_FMT_FLT:
1689 {
1690 float *volp = samples;
1691 float scale = audio_volume / 256.f;
1692 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1693 *volp++ *= scale;
1694 }
1695 break;
1696 }
1697 case AV_SAMPLE_FMT_DBL:
1698 {
1699 double *volp = samples;
1700 double scale = audio_volume / 256.;
1701 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1702 *volp++ *= scale;
1703 }
1704 break;
1705 }
1706 default:
1707 av_log(NULL, AV_LOG_FATAL,
1708 "Audio volume adjustment on sample format %s is not supported.\n",
1709 av_get_sample_fmt_name(ist->st->codec->sample_fmt));
1710 exit_program(1);
1711 }
1712 }
1713
1714 rate_emu_sleep(ist);
1715
1716 for (i = 0; i < nb_output_streams; i++) {
1717 OutputStream *ost = &output_streams[i];
1718
1719 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1720 continue;
1721 do_audio_out(output_files[ost->file_index].ctx, ost, ist, decoded_frame);
1722 }
1723
1724 return ret;
1725 }
1726
1727 static int transcode_video(InputStream *ist, AVPacket *pkt, int *got_output, int64_t *pkt_pts)
1728 {
1729 AVFrame *decoded_frame, *filtered_frame = NULL;
1730 void *buffer_to_free = NULL;
1731 int i, ret = 0;
1732 float quality;
1733 #if CONFIG_AVFILTER
1734 int frame_available = 1;
1735 #endif
1736
1737 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1738 return AVERROR(ENOMEM);
1739 else
1740 avcodec_get_frame_defaults(ist->decoded_frame);
1741 decoded_frame = ist->decoded_frame;
1742 pkt->pts = *pkt_pts;
1743 pkt->dts = ist->pts;
1744 *pkt_pts = AV_NOPTS_VALUE;
1745
1746 ret = avcodec_decode_video2(ist->st->codec,
1747 decoded_frame, got_output, pkt);
1748 if (ret < 0)
1749 return ret;
1750
1751 quality = same_quant ? decoded_frame->quality : 0;
1752 if (!*got_output) {
1753 /* no picture yet */
1754 return ret;
1755 }
1756 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1757 decoded_frame->pkt_dts);
1758 if (pkt->duration)
1759 ist->next_pts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
1760 else if (ist->st->codec->time_base.num != 0) {
1761 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1762 ist->st->codec->ticks_per_frame;
1763 ist->next_pts += ((int64_t)AV_TIME_BASE *
1764 ist->st->codec->time_base.num * ticks) /
1765 ist->st->codec->time_base.den;
1766 }
1767 pkt->size = 0;
1768 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1769
1770 rate_emu_sleep(ist);
1771
1772 for (i = 0; i < nb_output_streams; i++) {
1773 OutputStream *ost = &output_streams[i];
1774 int frame_size;
1775
1776 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1777 continue;
1778
1779 #if CONFIG_AVFILTER
1780 if (ost->input_video_filter) {
1781 AVRational sar;
1782 if (ist->st->sample_aspect_ratio.num)
1783 sar = ist->st->sample_aspect_ratio;
1784 else
1785 sar = ist->st->codec->sample_aspect_ratio;
1786 av_vsrc_buffer_add_frame(ost->input_video_filter, decoded_frame, ist->pts, sar);
1787 if (!ist->filtered_frame && !(ist->filtered_frame = avcodec_alloc_frame())) {
1788 av_free(buffer_to_free);
1789 return AVERROR(ENOMEM);
1790 } else
1791 avcodec_get_frame_defaults(ist->filtered_frame);
1792 filtered_frame = ist->filtered_frame;
1793 frame_available = avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1794 }
1795 while (frame_available) {
1796 AVRational ist_pts_tb;
1797 if (ost->output_video_filter)
1798 get_filtered_video_frame(ost->output_video_filter, filtered_frame, &ost->picref, &ist_pts_tb);
1799 if (ost->picref)
1800 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1801 if (ost->picref->video && !ost->frame_aspect_ratio)
1802 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1803 #else
1804 filtered_frame = decoded_frame;
1805 #endif
1806
1807 do_video_out(output_files[ost->file_index].ctx, ost, ist, filtered_frame, &frame_size,
1808 same_quant ? quality : ost->st->codec->global_quality);
1809 if (vstats_filename && frame_size)
1810 do_video_stats(output_files[ost->file_index].ctx, ost, frame_size);
1811 #if CONFIG_AVFILTER
1812 frame_available = ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1813 if (ost->picref)
1814 avfilter_unref_buffer(ost->picref);
1815 }
1816 #endif
1817 }
1818
1819 av_free(buffer_to_free);
1820 return ret;
1821 }
1822
1823 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1824 {
1825 AVSubtitle subtitle;
1826 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1827 &subtitle, got_output, pkt);
1828 if (ret < 0)
1829 return ret;
1830 if (!*got_output)
1831 return ret;
1832
1833 rate_emu_sleep(ist);
1834
1835 for (i = 0; i < nb_output_streams; i++) {
1836 OutputStream *ost = &output_streams[i];
1837
1838 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1839 continue;
1840
1841 do_subtitle_out(output_files[ost->file_index].ctx, ost, ist, &subtitle, pkt->pts);
1842 }
1843
1844 avsubtitle_free(&subtitle);
1845 return ret;
1846 }
1847
1848 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1849 static int output_packet(InputStream *ist,
1850 OutputStream *ost_table, int nb_ostreams,
1851 const AVPacket *pkt)
1852 {
1853 int i;
1854 int got_output;
1855 int64_t pkt_pts = AV_NOPTS_VALUE;
1856 AVPacket avpkt;
1857
1858 if (ist->next_pts == AV_NOPTS_VALUE)
1859 ist->next_pts = ist->pts;
1860
1861 if (pkt == NULL) {
1862 /* EOF handling */
1863 av_init_packet(&avpkt);
1864 avpkt.data = NULL;
1865 avpkt.size = 0;
1866 goto handle_eof;
1867 } else {
1868 avpkt = *pkt;
1869 }
1870
1871 if(pkt->dts != AV_NOPTS_VALUE)
1872 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1873 if(pkt->pts != AV_NOPTS_VALUE)
1874 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1875
1876 //while we have more to decode or while the decoder did output something on EOF
1877 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1878 int ret = 0;
1879 handle_eof:
1880
1881 ist->pts = ist->next_pts;
1882
1883 if (avpkt.size && avpkt.size != pkt->size) {
1884 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1885 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1886 ist->showed_multi_packet_warning = 1;
1887 }
1888
1889 switch(ist->st->codec->codec_type) {
1890 case AVMEDIA_TYPE_AUDIO:
1891 ret = transcode_audio (ist, &avpkt, &got_output);
1892 break;
1893 case AVMEDIA_TYPE_VIDEO:
1894 ret = transcode_video (ist, &avpkt, &got_output, &pkt_pts);
1895 break;
1896 case AVMEDIA_TYPE_SUBTITLE:
1897 ret = transcode_subtitles(ist, &avpkt, &got_output);
1898 break;
1899 default:
1900 return -1;
1901 }
1902
1903 if (ret < 0)
1904 return ret;
1905 // touch data and size only if not EOF
1906 if (pkt) {
1907 avpkt.data += ret;
1908 avpkt.size -= ret;
1909 }
1910 if (!got_output) {
1911 continue;
1912 }
1913 }
1914
1915 /* handle stream copy */
1916 if (!ist->decoding_needed) {
1917 rate_emu_sleep(ist);
1918 ist->pts = ist->next_pts;
1919 switch (ist->st->codec->codec_type) {
1920 case AVMEDIA_TYPE_AUDIO:
1921 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1922 ist->st->codec->sample_rate;
1923 break;
1924 case AVMEDIA_TYPE_VIDEO:
1925 if (ist->st->codec->time_base.num != 0) {
1926 int ticks = ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1927 ist->next_pts += ((int64_t)AV_TIME_BASE *
1928 ist->st->codec->time_base.num * ticks) /
1929 ist->st->codec->time_base.den;
1930 }
1931 break;
1932 }
1933 }
1934 for (i = 0; pkt && i < nb_ostreams; i++) {
1935 OutputStream *ost = &ost_table[i];
1936
1937 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1938 continue;
1939
1940 do_streamcopy(ist, ost, pkt);
1941 }
1942
1943 return 0;
1944 }
1945
1946 static void print_sdp(OutputFile *output_files, int n)
1947 {
1948 char sdp[2048];
1949 int i;
1950 AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
1951
1952 if (!avc)
1953 exit_program(1);
1954 for (i = 0; i < n; i++)
1955 avc[i] = output_files[i].ctx;
1956
1957 av_sdp_create(avc, n, sdp, sizeof(sdp));
1958 printf("SDP:\n%s\n", sdp);
1959 fflush(stdout);
1960 av_freep(&avc);
1961 }
1962
1963 static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
1964 char *error, int error_len)
1965 {
1966 int i;
1967 InputStream *ist = &input_streams[ist_index];
1968 if (ist->decoding_needed) {
1969 AVCodec *codec = ist->dec;
1970 if (!codec) {
1971 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
1972 ist->st->codec->codec_id, ist->file_index, ist->st->index);
1973 return AVERROR(EINVAL);
1974 }
1975
1976 /* update requested sample format for the decoder based on the
1977 corresponding encoder sample format */
1978 for (i = 0; i < nb_output_streams; i++) {
1979 OutputStream *ost = &output_streams[i];
1980 if (ost->source_index == ist_index) {
1981 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
1982 break;
1983 }
1984 }
1985
1986 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
1987 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
1988 ist->file_index, ist->st->index);
1989 return AVERROR(EINVAL);
1990 }
1991 assert_codec_experimental(ist->st->codec, 0);
1992 assert_avoptions(ist->opts);
1993 }
1994
1995 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;
1996 ist->next_pts = AV_NOPTS_VALUE;
1997 init_pts_correction(&ist->pts_ctx);
1998 ist->is_start = 1;
1999
2000 return 0;
2001 }
2002
2003 static int transcode_init(OutputFile *output_files,
2004 int nb_output_files,
2005 InputFile *input_files,
2006 int nb_input_files)
2007 {
2008 int ret = 0, i, j, k;
2009 AVFormatContext *oc;
2010 AVCodecContext *codec, *icodec;
2011 OutputStream *ost;
2012 InputStream *ist;
2013 char error[1024];
2014 int want_sdp = 1;
2015
2016 /* init framerate emulation */
2017 for (i = 0; i < nb_input_files; i++) {
2018 InputFile *ifile = &input_files[i];
2019 if (ifile->rate_emu)
2020 for (j = 0; j < ifile->nb_streams; j++)
2021 input_streams[j + ifile->ist_index].start = av_gettime();
2022 }
2023
2024 /* output stream init */
2025 for (i = 0; i < nb_output_files; i++) {
2026 oc = output_files[i].ctx;
2027 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2028 av_dump_format(oc, i, oc->filename, 1);
2029 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2030 return AVERROR(EINVAL);
2031 }
2032 }
2033
2034 /* for each output stream, we compute the right encoding parameters */
2035 for (i = 0; i < nb_output_streams; i++) {
2036 ost = &output_streams[i];
2037 oc = output_files[ost->file_index].ctx;
2038 ist = &input_streams[ost->source_index];
2039
2040 if (ost->attachment_filename)
2041 continue;
2042
2043 codec = ost->st->codec;
2044 icodec = ist->st->codec;
2045
2046 ost->st->disposition = ist->st->disposition;
2047 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2048 codec->chroma_sample_location = icodec->chroma_sample_location;
2049
2050 if (ost->stream_copy) {
2051 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2052
2053 if (extra_size > INT_MAX) {
2054 return AVERROR(EINVAL);
2055 }
2056
2057 /* if stream_copy is selected, no need to decode or encode */
2058 codec->codec_id = icodec->codec_id;
2059 codec->codec_type = icodec->codec_type;
2060
2061 if (!codec->codec_tag) {
2062 if (!oc->oformat->codec_tag ||
2063 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2064 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
2065 codec->codec_tag = icodec->codec_tag;
2066 }
2067
2068 codec->bit_rate = icodec->bit_rate;
2069 codec->rc_max_rate = icodec->rc_max_rate;
2070 codec->rc_buffer_size = icodec->rc_buffer_size;
2071 codec->extradata = av_mallocz(extra_size);
2072 if (!codec->extradata) {
2073 return AVERROR(ENOMEM);
2074 }
2075 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2076 codec->extradata_size = icodec->extradata_size;
2077 if (!copy_tb) {
2078 codec->time_base = icodec->time_base;
2079 codec->time_base.num *= icodec->ticks_per_frame;
2080 av_reduce(&codec->time_base.num, &codec->time_base.den,
2081 codec->time_base.num, codec->time_base.den, INT_MAX);
2082 } else
2083 codec->time_base = ist->st->time_base;
2084
2085 switch(codec->codec_type) {
2086 case AVMEDIA_TYPE_AUDIO:
2087 if(audio_volume != 256) {
2088 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2089 exit_program(1);
2090 }
2091 codec->channel_layout = icodec->channel_layout;
2092 codec->sample_rate = icodec->sample_rate;
2093 codec->channels = icodec->channels;
2094 codec->frame_size = icodec->frame_size;
2095 codec->audio_service_type = icodec->audio_service_type;
2096 codec->block_align = icodec->block_align;
2097 break;
2098 case AVMEDIA_TYPE_VIDEO:
2099 codec->pix_fmt = icodec->pix_fmt;
2100 codec->width = icodec->width;
2101 codec->height = icodec->height;
2102 codec->has_b_frames = icodec->has_b_frames;
2103 if (!codec->sample_aspect_ratio.num) {
2104 codec->sample_aspect_ratio =
2105 ost->st->sample_aspect_ratio =
2106 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2107 ist->st->codec->sample_aspect_ratio.num ?
2108 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2109 }
2110 break;
2111 case AVMEDIA_TYPE_SUBTITLE:
2112 codec->width = icodec->width;
2113 codec->height = icodec->height;
2114 break;
2115 case AVMEDIA_TYPE_DATA:
2116 case AVMEDIA_TYPE_ATTACHMENT:
2117 break;
2118 default:
2119 abort();
2120 }
2121 } else {
2122 if (!ost->enc)
2123 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2124
2125 ist->decoding_needed = 1;
2126 ost->encoding_needed = 1;
2127
2128 switch(codec->codec_type) {
2129 case AVMEDIA_TYPE_AUDIO:
2130 ost->fifo = av_fifo_alloc(1024);
2131 if (!ost->fifo) {
2132 return AVERROR(ENOMEM);
2133 }
2134 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2135
2136 if (!codec->sample_rate)
2137 codec->sample_rate = icodec->sample_rate;
2138 choose_sample_rate(ost->st, ost->enc);
2139 codec->time_base = (AVRational){1, codec->sample_rate};
2140
2141 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2142 codec->sample_fmt = icodec->sample_fmt;
2143 choose_sample_fmt(ost->st, ost->enc);
2144
2145 if (!codec->channels)
2146 codec->channels = icodec->channels;
2147 codec->channel_layout = icodec->channel_layout;
2148 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2149 codec->channel_layout = 0;
2150
2151 ost->audio_resample = codec-> sample_rate != icodec->sample_rate || audio_sync_method > 1;
2152 icodec->request_channels = codec-> channels;
2153 ost->resample_sample_fmt = icodec->sample_fmt;
2154 ost->resample_sample_rate = icodec->sample_rate;
2155 ost->resample_channels = icodec->channels;
2156 break;
2157 case AVMEDIA_TYPE_VIDEO:
2158 if (codec->pix_fmt == PIX_FMT_NONE)
2159 codec->pix_fmt = icodec->pix_fmt;
2160 choose_pixel_fmt(ost->st, ost->enc);
2161
2162 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2163 av_log(NULL, AV_LOG_FATAL, "Video pixel format is unknown, stream cannot be encoded\n");
2164 exit_program(1);
2165 }
2166
2167 if (!codec->width || !codec->height) {
2168 codec->width = icodec->width;
2169 codec->height = icodec->height;
2170 }
2171
2172 ost->video_resample = codec->width != icodec->width ||
2173 codec->height != icodec->height ||
2174 codec->pix_fmt != icodec->pix_fmt;
2175 if (ost->video_resample) {
2176 #if !CONFIG_AVFILTER
2177 avcodec_get_frame_defaults(&ost->pict_tmp);
2178 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2179 codec->width, codec->height)) {
2180 av_log(NULL, AV_LOG_FATAL, "Cannot allocate temp picture, check pix fmt\n");
2181 exit_program(1);
2182 }
2183 ost->img_resample_ctx = sws_getContext(
2184 icodec->width,
2185 icodec->height,
2186 icodec->pix_fmt,
2187 codec->width,
2188 codec->height,
2189 codec->pix_fmt,
2190 ost->sws_flags, NULL, NULL, NULL);
2191 if (ost->img_resample_ctx == NULL) {
2192 av_log(NULL, AV_LOG_FATAL, "Cannot get resampling context\n");
2193 exit_program(1);
2194 }
2195 #endif
2196 codec->bits_per_raw_sample= 0;
2197 }
2198
2199 ost->resample_height = icodec->height;
2200 ost->resample_width = icodec->width;
2201 ost->resample_pix_fmt = icodec->pix_fmt;
2202
2203 if (!ost->frame_rate.num)
2204 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2205 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2206 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2207 ost->frame_rate = ost->enc->supported_framerates[idx];
2208 }
2209 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2210
2211 #if CONFIG_AVFILTER
2212 if (configure_video_filters(ist, ost)) {
2213 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2214 exit(1);
2215 }
2216 #endif
2217 break;
2218 case AVMEDIA_TYPE_SUBTITLE:
2219 break;
2220 default:
2221 abort();
2222 break;
2223 }
2224 /* two pass mode */
2225 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2226 char logfilename[1024];
2227 FILE *f;
2228
2229 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2230 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2231 i);
2232 if (codec->flags & CODEC_FLAG_PASS1) {
2233 f = fopen(logfilename, "wb");
2234 if (!f) {
2235 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2236 logfilename, strerror(errno));
2237 exit_program(1);
2238 }
2239 ost->logfile = f;
2240 } else {
2241 char *logbuffer;
2242 size_t logbuffer_size;
2243 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2244 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2245 logfilename);
2246 exit_program(1);
2247 }
2248 codec->stats_in = logbuffer;
2249 }
2250 }
2251 }
2252 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2253 int size = codec->width * codec->height;
2254 bit_buffer_size = FFMAX(bit_buffer_size, 6*size + 200);
2255 }
2256 }
2257
2258 if (!bit_buffer)
2259 bit_buffer = av_malloc(bit_buffer_size);
2260 if (!bit_buffer) {
2261 av_log(NULL, AV_LOG_ERROR, "Cannot allocate %d bytes output buffer\n",
2262 bit_buffer_size);
2263 return AVERROR(ENOMEM);
2264 }
2265
2266 /* open each encoder */
2267 for (i = 0; i < nb_output_streams; i++) {
2268 ost = &output_streams[i];
2269 if (ost->encoding_needed) {
2270 AVCodec *codec = ost->enc;
2271 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2272 if (!codec) {
2273 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d:%d",
2274 ost->st->codec->codec_id, ost->file_index, ost->index);
2275 ret = AVERROR(EINVAL);
2276 goto dump_format;
2277 }
2278 if (dec->subtitle_header) {
2279 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2280 if (!ost->st->codec->subtitle_header) {
2281 ret = AVERROR(ENOMEM);
2282 goto dump_format;
2283 }
2284 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2285 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2286 }
2287 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2288 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2289 ost->file_index, ost->index);
2290 ret = AVERROR(EINVAL);
2291 goto dump_format;
2292 }
2293 assert_codec_experimental(ost->st->codec, 1);
2294 assert_avoptions(ost->opts);
2295 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2296 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2297 "It takes bits/s as argument, not kbits/s\n");
2298 extra_size += ost->st->codec->extradata_size;
2299
2300 if (ost->st->codec->me_threshold)
2301 input_streams[ost->source_index].st->codec->debug |= FF_DEBUG_MV;
2302 }
2303 }
2304
2305 /* init input streams */
2306 for (i = 0; i < nb_input_streams; i++)
2307 if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0)
2308 goto dump_format;
2309
2310 /* discard unused programs */
2311 for (i = 0; i < nb_input_files; i++) {
2312 InputFile *ifile = &input_files[i];
2313 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2314 AVProgram *p = ifile->ctx->programs[j];
2315 int discard = AVDISCARD_ALL;
2316
2317 for (k = 0; k < p->nb_stream_indexes; k++)
2318 if (!input_streams[ifile->ist_index + p->stream_index[k]].discard) {
2319 discard = AVDISCARD_DEFAULT;
2320 break;
2321 }
2322 p->discard = discard;
2323 }
2324 }
2325
2326 /* open files and write file headers */
2327 for (i = 0; i < nb_output_files; i++) {
2328 oc = output_files[i].ctx;
2329 oc->interrupt_callback = int_cb;
2330 if (avformat_write_header(oc, &output_files[i].opts) < 0) {
2331 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2332 ret = AVERROR(EINVAL);
2333 goto dump_format;
2334 }
2335 assert_avoptions(output_files[i].opts);
2336 if (strcmp(oc->oformat->name, "rtp")) {
2337 want_sdp = 0;
2338 }
2339 }
2340
2341 dump_format:
2342 /* dump the file output parameters - cannot be done before in case
2343 of stream copy */
2344 for (i = 0; i < nb_output_files; i++) {
2345 av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2346 }
2347
2348 /* dump the stream mapping */
2349 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2350 for (i = 0; i < nb_output_streams; i++) {
2351 ost = &output_streams[i];
2352
2353 if (ost->attachment_filename) {
2354 /* an attached file */
2355 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2356 ost->attachment_filename, ost->file_index, ost->index);
2357 continue;
2358 }
2359 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2360 input_streams[ost->source_index].file_index,
2361 input_streams[ost->source_index].st->index,
2362 ost->file_index,
2363 ost->index);
2364 if (ost->sync_ist != &input_streams[ost->source_index])
2365 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2366 ost->sync_ist->file_index,
2367 ost->sync_ist->st->index);
2368 if (ost->stream_copy)
2369 av_log(NULL, AV_LOG_INFO, " (copy)");
2370 else
2371 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index].dec ?
2372 input_streams[ost->source_index].dec->name : "?",
2373 ost->enc ? ost->enc->name : "?");
2374 av_log(NULL, AV_LOG_INFO, "\n");
2375 }
2376
2377 if (ret) {
2378 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2379 return ret;
2380 }
2381
2382 if (want_sdp) {
2383 print_sdp(output_files, nb_output_files);
2384 }
2385
2386 return 0;
2387 }
2388
2389 /*
2390 * The following code is the main loop of the file converter
2391 */
2392 static int transcode(OutputFile *output_files,
2393 int nb_output_files,
2394 InputFile *input_files,
2395 int nb_input_files)
2396 {
2397 int ret, i;
2398 AVFormatContext *is, *os;
2399 OutputStream *ost;
2400 InputStream *ist;
2401 uint8_t *no_packet;
2402 int no_packet_count=0;
2403 int64_t timer_start;
2404
2405 if (!(no_packet = av_mallocz(nb_input_files)))
2406 exit_program(1);
2407
2408 ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
2409 if (ret < 0)
2410 goto fail;
2411
2412 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2413 term_init();
2414
2415 timer_start = av_gettime();
2416
2417 for(; received_sigterm == 0;) {
2418 int file_index, ist_index;
2419 AVPacket pkt;
2420 int64_t ipts_min;
2421 double opts_min;
2422
2423 ipts_min = INT64_MAX;
2424 opts_min= 1e100;
2425
2426 /* select the stream that we must read now by looking at the
2427 smallest output pts */
2428 file_index = -1;
2429 for (i = 0; i < nb_output_streams; i++) {
2430 OutputFile *of;
2431 int64_t ipts;
2432 double opts;
2433 ost = &output_streams[i];
2434 of = &output_files[ost->file_index];
2435 os = output_files[ost->file_index].ctx;
2436 ist = &input_streams[ost->source_index];
2437 if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2438 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2439 continue;
2440 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2441 ipts = ist->pts;
2442 if (!input_files[ist->file_index].eof_reached){
2443 if(ipts < ipts_min) {
2444 ipts_min = ipts;
2445 if(input_sync ) file_index = ist->file_index;
2446 }
2447 if(opts < opts_min) {
2448 opts_min = opts;
2449 if(!input_sync) file_index = ist->file_index;
2450 }
2451 }
2452 if (ost->frame_number >= ost->max_frames) {
2453 int j;
2454 for (j = 0; j < of->ctx->nb_streams; j++)
2455 output_streams[of->ost_index + j].is_past_recording_time = 1;
2456 continue;
2457 }
2458 }
2459 /* if none, if is finished */
2460 if (file_index < 0) {
2461 if(no_packet_count){
2462 no_packet_count=0;
2463 memset(no_packet, 0, nb_input_files);
2464 usleep(10000);
2465 continue;
2466 }
2467 break;
2468 }
2469
2470 /* read a frame from it and output it in the fifo */
2471 is = input_files[file_index].ctx;
2472 ret= av_read_frame(is, &pkt);
2473 if(ret == AVERROR(EAGAIN)){
2474 no_packet[file_index]=1;
2475 no_packet_count++;
2476 continue;
2477 }
2478 if (ret < 0) {
2479 input_files[file_index].eof_reached = 1;
2480 if (opt_shortest)
2481 break;
2482 else
2483 continue;
2484 }
2485
2486 no_packet_count=0;
2487 memset(no_packet, 0, nb_input_files);
2488
2489 if (do_pkt_dump) {
2490 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2491 is->streams[pkt.stream_index]);
2492 }
2493 /* the following test is needed in case new streams appear
2494 dynamically in stream : we ignore them */
2495 if (pkt.stream_index >= input_files[file_index].nb_streams)
2496 goto discard_packet;
2497 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2498 ist = &input_streams[ist_index];
2499 if (ist->discard)
2500 goto discard_packet;
2501
2502 if (pkt.dts != AV_NOPTS_VALUE)
2503 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2504 if (pkt.pts != AV_NOPTS_VALUE)
2505 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2506
2507 if(pkt.pts != AV_NOPTS_VALUE)
2508 pkt.pts *= ist->ts_scale;
2509 if(pkt.dts != AV_NOPTS_VALUE)
2510 pkt.dts *= ist->ts_scale;
2511
2512 // 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);
2513 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2514 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2515 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2516 int64_t delta= pkt_dts - ist->next_pts;
2517 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2518 input_files[ist->file_index].ts_offset -= delta;
2519 av_log(NULL, AV_LOG_DEBUG, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2520 delta, input_files[ist->file_index].ts_offset);
2521 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2522 if(pkt.pts != AV_NOPTS_VALUE)
2523 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2524 }
2525 }
2526
2527 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2528 if (output_packet(ist, output_streams, nb_output_streams, &pkt) < 0) {
2529
2530 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
2531 ist->file_index, ist->st->index);
2532 if (exit_on_error)
2533 exit_program(1);
2534 av_free_packet(&pkt);
2535 continue;
2536 }
2537
2538 discard_packet:
2539 av_free_packet(&pkt);
2540
2541 /* dump report by using the output first video and audio streams */
2542 print_report(output_files, output_streams, nb_output_streams, 0, timer_start);
2543 }
2544
2545 /* at the end of stream, we must flush the decoder buffers */
2546 for (i = 0; i < nb_input_streams; i++) {
2547 ist = &input_streams[i];
2548 if (ist->decoding_needed) {
2549 output_packet(ist, output_streams, nb_output_streams, NULL);
2550 }
2551 }
2552 flush_encoders(output_streams, nb_output_streams);
2553
2554 term_exit();
2555
2556 /* write the trailer if needed and close file */
2557 for(i=0;i<nb_output_files;i++) {
2558 os = output_files[i].ctx;
2559 av_write_trailer(os);
2560 }
2561
2562 /* dump report by using the first video and audio streams */
2563 print_report(output_files, output_streams, nb_output_streams, 1, timer_start);
2564
2565 /* close each encoder */
2566 for (i = 0; i < nb_output_streams; i++) {
2567 ost = &output_streams[i];
2568 if (ost->encoding_needed) {
2569 av_freep(&ost->st->codec->stats_in);
2570 avcodec_close(ost->st->codec);
2571 }
2572 #if CONFIG_AVFILTER
2573 avfilter_graph_free(&ost->graph);
2574 #endif
2575 }
2576
2577 /* close each decoder */
2578 for (i = 0; i < nb_input_streams; i++) {
2579 ist = &input_streams[i];
2580 if (ist->decoding_needed) {
2581 avcodec_close(ist->st->codec);
2582 }
2583 }
2584
2585 /* finished ! */
2586 ret = 0;
2587
2588 fail:
2589 av_freep(&bit_buffer);
2590 av_freep(&no_packet);
2591
2592 if (output_streams) {
2593 for (i = 0; i < nb_output_streams; i++) {
2594 ost = &output_streams[i];
2595 if (ost) {
2596 if (ost->stream_copy)
2597 av_freep(&ost->st->codec->extradata);
2598 if (ost->logfile) {
2599 fclose(ost->logfile);
2600 ost->logfile = NULL;
2601 }
2602 av_fifo_free(ost->fifo); /* works even if fifo is not
2603 initialized but set to zero */
2604 av_freep(&ost->st->codec->subtitle_header);
2605 av_free(ost->pict_tmp.data[0]);
2606 av_free(ost->forced_kf_pts);
2607 if (ost->video_resample)
2608 sws_freeContext(ost->img_resample_ctx);
2609 if (ost->resample)
2610 audio_resample_close(ost->resample);
2611 if (ost->reformat_ctx)
2612 av_audio_convert_free(ost->reformat_ctx);
2613 av_dict_free(&ost->opts);
2614 }
2615 }
2616 }
2617 return ret;
2618 }
2619
2620 static double parse_frame_aspect_ratio(const char *arg)
2621 {
2622 int x = 0, y = 0;
2623 double ar = 0;
2624 const char *p;
2625 char *end;
2626
2627 p = strchr(arg, ':');
2628 if (p) {
2629 x = strtol(arg, &end, 10);
2630 if (end == p)
2631 y = strtol(end+1, &end, 10);
2632 if (x > 0 && y > 0)
2633 ar = (double)x / (double)y;
2634 } else
2635 ar = strtod(arg, NULL);
2636
2637 if (!ar) {
2638 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
2639 exit_program(1);
2640 }
2641 return ar;
2642 }
2643
2644 static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
2645 {
2646 return parse_option(o, "codec:a", arg, options);
2647 }
2648
2649 static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
2650 {
2651 return parse_option(o, "codec:v", arg, options);
2652 }
2653
2654 static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
2655 {
2656 return parse_option(o, "codec:s", arg, options);
2657 }
2658
2659 static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
2660 {
2661 return parse_option(o, "codec:d", arg, options);
2662 }
2663
2664 static int opt_map(OptionsContext *o, const char *opt, const char *arg)
2665 {
2666 StreamMap *m = NULL;
2667 int i, negative = 0, file_idx;
2668 int sync_file_idx = -1, sync_stream_idx;
2669 char *p, *sync;
2670 char *map;
2671
2672 if (*arg == '-') {
2673 negative = 1;
2674 arg++;
2675 }
2676 map = av_strdup(arg);
2677
2678 /* parse sync stream first, just pick first matching stream */
2679 if (sync = strchr(map, ',')) {
2680 *sync = 0;
2681 sync_file_idx = strtol(sync + 1, &sync, 0);
2682 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2683 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
2684 exit_program(1);
2685 }
2686 if (*sync)
2687 sync++;
2688 for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
2689 if (check_stream_specifier(input_files[sync_file_idx].ctx,
2690 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2691 sync_stream_idx = i;
2692 break;
2693 }
2694 if (i == input_files[sync_file_idx].nb_streams) {
2695 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
2696 "match any streams.\n", arg);
2697 exit_program(1);
2698 }
2699 }
2700
2701
2702 file_idx = strtol(map, &p, 0);
2703 if (file_idx >= nb_input_files || file_idx < 0) {
2704 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
2705 exit_program(1);
2706 }
2707 if (negative)
2708 /* disable some already defined maps */
2709 for (i = 0; i < o->nb_stream_maps; i++) {
2710 m = &o->stream_maps[i];
2711 if (file_idx == m->file_index &&
2712 check_stream_specifier(input_files[m->file_index].ctx,
2713 input_files[m->file_index].ctx->streams[m->stream_index],
2714 *p == ':' ? p + 1 : p) > 0)
2715 m->disabled = 1;
2716 }
2717 else
2718 for (i = 0; i < input_files[file_idx].nb_streams; i++) {
2719 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2720 *p == ':' ? p + 1 : p) <= 0)
2721 continue;
2722 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
2723 &o->nb_stream_maps, o->nb_stream_maps + 1);
2724 m = &o->stream_maps[o->nb_stream_maps - 1];
2725
2726 m->file_index = file_idx;
2727 m->stream_index = i;
2728
2729 if (sync_file_idx >= 0) {
2730 m->sync_file_index = sync_file_idx;
2731 m->sync_stream_index = sync_stream_idx;
2732 } else {
2733 m->sync_file_index = file_idx;
2734 m->sync_stream_index = i;
2735 }
2736 }
2737
2738 if (!m) {
2739 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
2740 exit_program(1);
2741 }
2742
2743 av_freep(&map);
2744 return 0;
2745 }
2746
2747 static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
2748 {
2749 o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
2750 &o->nb_attachments, o->nb_attachments + 1);
2751 o->attachments[o->nb_attachments - 1] = arg;
2752 return 0;
2753 }
2754
2755 static void parse_meta_type(char *arg, char *type, int *index)
2756 {
2757 if (*arg) {
2758 *type = *arg;
2759 switch (*arg) {
2760 case 'g':
2761 break;
2762 case 's':
2763 case 'c':
2764 case 'p':
2765 if (*(++arg) == ':')
2766 *index = strtol(++arg, NULL, 0);
2767 break;
2768 default:
2769 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
2770 exit_program(1);
2771 }
2772 } else
2773 *type = 'g';
2774 }
2775
2776 static int opt_map_metadata(OptionsContext *o, const char *opt, const char *arg)
2777 {
2778 MetadataMap *m, *m1;
2779 char *p;
2780
2781 o->meta_data_maps = grow_array(o->meta_data_maps, sizeof(*o->meta_data_maps),
2782 &o->nb_meta_data_maps, o->nb_meta_data_maps + 1);
2783
2784 m = &o->meta_data_maps[o->nb_meta_data_maps - 1][1];
2785 m->file = strtol(arg, &p, 0);
2786 parse_meta_type(*p ? p + 1 : p, &m->type, &m->index);
2787
2788 m1 = &o->meta_data_maps[o->nb_meta_data_maps - 1][0];
2789 if (p = strchr(opt, ':'))
2790 parse_meta_type(p + 1, &m1->type, &m1->index);
2791 else
2792 m1->type = 'g';
2793
2794 if (m->type == 'g' || m1->type == 'g')
2795 o->metadata_global_manual = 1;
2796 if (m->type == 's' || m1->type == 's')
2797 o->metadata_streams_manual = 1;
2798 if (m->type == 'c' || m1->type == 'c')
2799 o->metadata_chapters_manual = 1;
2800
2801 return 0;
2802 }
2803
2804 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2805 {
2806 const char *codec_string = encoder ? "encoder" : "decoder";
2807 AVCodec *codec;
2808
2809 codec = encoder ?
2810 avcodec_find_encoder_by_name(name) :
2811 avcodec_find_decoder_by_name(name);
2812 if(!codec) {
2813 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
2814 exit_program(1);
2815 }
2816 if(codec->type != type) {
2817 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
2818 exit_program(1);
2819 }
2820 return codec;
2821 }
2822
2823 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
2824 {
2825 char *codec_name = NULL;
2826
2827 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
2828 if (codec_name) {
2829 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
2830 st->codec->codec_id = codec->id;
2831 return codec;
2832 } else
2833 return avcodec_find_decoder(st->codec->codec_id);
2834 }
2835
2836 /**
2837 * Add all the streams from the given input file to the global
2838 * list of input streams.
2839 */
2840 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
2841 {
2842 int i, rfps, rfps_base;
2843
2844 for (i = 0; i < ic->nb_streams; i++) {
2845 AVStream *st = ic->streams[i];
2846 AVCodecContext *dec = st->codec;
2847 InputStream *ist;
2848
2849 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2850 ist = &input_streams[nb_input_streams - 1];
2851 ist->st = st;
2852 ist->file_index = nb_input_files;
2853 ist->discard = 1;
2854 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2855
2856 ist->ts_scale = 1.0;
2857 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
2858
2859 ist->dec = choose_decoder(o, ic, st);
2860
2861 switch (dec->codec_type) {
2862 case AVMEDIA_TYPE_AUDIO:
2863 if (o->audio_disable)
2864 st->discard= AVDISCARD_ALL;
2865 break;
2866 case AVMEDIA_TYPE_VIDEO:
2867 rfps = ic->streams[i]->r_frame_rate.num;
2868 rfps_base = ic->streams[i]->r_frame_rate.den;
2869 if (dec->lowres) {
2870 dec->flags |= CODEC_FLAG_EMU_EDGE;
2871 dec->height >>= dec->lowres;
2872 dec->width >>= dec->lowres;
2873 }
2874
2875 if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
2876
2877 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",
2878 i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
2879 (float)rfps / rfps_base, rfps, rfps_base);
2880 }
2881
2882 if (o->video_disable)
2883 st->discard= AVDISCARD_ALL;
2884 else if(video_discard)
2885 st->discard= video_discard;
2886 break;
2887 case AVMEDIA_TYPE_DATA:
2888 break;
2889 case AVMEDIA_TYPE_SUBTITLE:
2890 if (o->subtitle_disable)
2891 st->discard = AVDISCARD_ALL;
2892 break;
2893 case AVMEDIA_TYPE_ATTACHMENT:
2894 case AVMEDIA_TYPE_UNKNOWN:
2895 break;
2896 default:
2897 abort();
2898 }
2899 }
2900 }
2901
2902 static void assert_file_overwrite(const char *filename)
2903 {
2904 if (!file_overwrite &&
2905 (strchr(filename, ':') == NULL || filename[1] == ':' ||
2906 av_strstart(filename, "file:", NULL))) {
2907 if (avio_check(filename, 0) == 0) {
2908 if (!using_stdin) {
2909 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
2910 fflush(stderr);
2911 if (!read_yesno()) {
2912 fprintf(stderr, "Not overwriting - exiting\n");
2913 exit_program(1);
2914 }
2915 }
2916 else {
2917 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
2918 exit_program(1);
2919 }
2920 }
2921 }
2922 }
2923
2924 static void dump_attachment(AVStream *st, const char *filename)
2925 {
2926 int ret;
2927 AVIOContext *out = NULL;
2928 AVDictionaryEntry *e;
2929
2930 if (!st->codec->extradata_size) {
2931 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
2932 nb_input_files - 1, st->index);
2933 return;
2934 }
2935 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
2936 filename = e->value;
2937 if (!*filename) {
2938 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
2939 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
2940 exit_program(1);
2941 }
2942
2943 assert_file_overwrite(filename);
2944
2945 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
2946 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
2947 filename);
2948 exit_program(1);
2949 }
2950
2951 avio_write(out, st->codec->extradata, st->codec->extradata_size);
2952 avio_flush(out);
2953 avio_close(out);
2954 }
2955
2956 static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
2957 {
2958 AVFormatContext *ic;
2959 AVInputFormat *file_iformat = NULL;
2960 int err, i, ret;
2961 int64_t timestamp;
2962 uint8_t buf[128];
2963 AVDictionary **opts;
2964 int orig_nb_streams; // number of streams before avformat_find_stream_info
2965
2966 if (o->format) {
2967 if (!(file_iformat = av_find_input_format(o->format))) {
2968 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
2969 exit_program(1);
2970 }
2971 }
2972
2973 if (!strcmp(filename, "-"))
2974 filename = "pipe:";
2975
2976 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2977 !strcmp(filename, "/dev/stdin");
2978
2979 /* get default parameters from command line */
2980 ic = avformat_alloc_context();
2981 if (!ic) {
2982 print_error(filename, AVERROR(ENOMEM));
2983 exit_program(1);
2984 }
2985 if (o->nb_audio_sample_rate) {
2986 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
2987 av_dict_set(&format_opts, "sample_rate", buf, 0);
2988 }
2989 if (o->nb_audio_channels) {
2990 snprintf(buf, sizeof(buf), "%d", o->audio_channels[o->nb_audio_channels - 1].u.i);
2991 av_dict_set(&format_opts, "channels", buf, 0);
2992 }
2993 if (o->nb_frame_rates) {
2994 av_dict_set(&format_opts, "framerate", o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
2995 }
2996 if (o->nb_frame_sizes) {
2997 av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
2998 }
2999 if (o->nb_frame_pix_fmts)
3000 av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
3001
3002 ic->flags |= AVFMT_FLAG_NONBLOCK;
3003 ic->interrupt_callback = int_cb;
3004
3005 /* open the input file with generic libav function */
3006 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3007 if (err < 0) {
3008 print_error(filename, err);
3009 exit_program(1);
3010 }
3011 assert_avoptions(format_opts);
3012
3013 /* apply forced codec ids */
3014 for (i = 0; i < ic->nb_streams; i++)
3015 choose_decoder(o, ic, ic->streams[i]);
3016
3017 /* Set AVCodecContext options for avformat_find_stream_info */
3018 opts = setup_find_stream_info_opts(ic, codec_opts);
3019 orig_nb_streams = ic->nb_streams;
3020
3021 /* If not enough info to get the stream parameters, we decode the
3022 first frames to get it. (used in mpeg case for example) */
3023 ret = avformat_find_stream_info(ic, opts);
3024 if (ret < 0) {
3025 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
3026 av_close_input_file(ic);
3027 exit_program(1);
3028 }
3029
3030 timestamp = o->start_time;
3031 /* add the stream start time */
3032 if (ic->start_time != AV_NOPTS_VALUE)
3033 timestamp += ic->start_time;
3034
3035 /* if seeking requested, we execute it */
3036 if (o->start_time != 0) {
3037 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3038 if (ret < 0) {
3039 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
3040 filename, (double)timestamp / AV_TIME_BASE);
3041 }
3042 }
3043
3044 /* update the current parameters so that they match the one of the input stream */
3045 add_input_streams(o, ic);
3046
3047 /* dump the file content */
3048 av_dump_format(ic, nb_input_files, filename, 0);
3049
3050 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3051 input_files[nb_input_files - 1].ctx = ic;
3052 input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
3053 input_files[nb_input_files - 1].ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
3054 input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
3055 input_files[nb_input_files - 1].rate_emu = o->rate_emu;
3056
3057 for (i = 0; i < o->nb_dump_attachment; i++) {
3058 int j;
3059
3060 for (j = 0; j < ic->nb_streams; j++) {
3061 AVStream *st = ic->streams[j];
3062
3063 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
3064 dump_attachment(st, o->dump_attachment[i].u.str);
3065 }
3066 }
3067
3068 for (i = 0; i < orig_nb_streams; i++)
3069 av_dict_free(&opts[i]);
3070 av_freep(&opts);
3071
3072 reset_options(o);
3073 return 0;
3074 }
3075
3076 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3077 AVCodecContext *avctx)
3078 {
3079 char *p;
3080 int n = 1, i;
3081 int64_t t;
3082
3083 for (p = kf; *p; p++)
3084 if (*p == ',')
3085 n++;
3086 ost->forced_kf_count = n;
3087 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3088 if (!ost->forced_kf_pts) {
3089 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3090 exit_program(1);
3091 }
3092 for (i = 0; i < n; i++) {
3093 p = i ? strchr(p, ',') + 1 : kf;
3094 t = parse_time_or_die("force_key_frames", p, 1);
3095 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3096 }
3097 }
3098
3099 static uint8_t *get_line(AVIOContext *s)
3100 {
3101 AVIOContext *line;
3102 uint8_t *buf;
3103 char c;
3104
3105 if (avio_open_dyn_buf(&line) < 0) {
3106 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
3107 exit_program(1);
3108 }
3109
3110 while ((c = avio_r8(s)) && c != '\n')
3111 avio_w8(line, c);
3112 avio_w8(line, 0);
3113 avio_close_dyn_buf(line, &buf);
3114
3115 return buf;
3116 }
3117
3118 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
3119 {
3120 int i, ret = 1;
3121 char filename[1000];
3122 const char *base[3] = { getenv("AVCONV_DATADIR"),
3123 getenv("HOME"),
3124 AVCONV_DATADIR,
3125 };
3126
3127 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret; i++) {
3128 if (!base[i])
3129 continue;
3130 if (codec_name) {
3131 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
3132 i != 1 ? "" : "/.avconv", codec_name, preset_name);
3133 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
3134 }
3135 if (ret) {
3136 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
3137 i != 1 ? "" : "/.avconv", preset_name);
3138 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
3139 }
3140 }
3141 return ret;
3142 }
3143
3144 static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
3145 {
3146 char *codec_name = NULL;
3147
3148 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
3149 if (!codec_name) {
3150 ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
3151 NULL, ost->st->codec->codec_type);
3152 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
3153 } else if (!strcmp(codec_name, "copy"))
3154 ost->stream_copy = 1;
3155 else {
3156 ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
3157 ost->st->codec->codec_id = ost->enc->id;
3158 }
3159 }
3160
3161 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
3162 {
3163 OutputStream *ost;
3164 AVStream *st = avformat_new_stream(oc, NULL);
3165 int idx = oc->nb_streams - 1, ret = 0;
3166 char *bsf = NULL, *next, *codec_tag = NULL;
3167 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
3168 double qscale = -1;
3169 char *buf = NULL, *arg = NULL, *preset = NULL;
3170 AVIOContext *s = NULL;
3171
3172 if (!st) {
3173 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
3174 exit_program(1);
3175 }
3176
3177 if (oc->nb_streams - 1 < o->nb_streamid_map)