3 * Copyright (c) 2000-2011 The libav developers.
5 * This file is part of Libav.
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.
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.
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
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"
50 # include "libavfilter/avfilter.h"
51 # include "libavfilter/avfiltergraph.h"
52 # include "libavfilter/vsrc_buffer.h"
55 #if HAVE_SYS_RESOURCE_H
56 #include <sys/types.h>
58 #include <sys/resource.h>
59 #elif HAVE_GETPROCESSTIMES
62 #if HAVE_GETPROCESSMEMORYINFO
68 #include <sys/select.h>
75 #include "libavutil/avassert.h"
77 const char program_name[] = "avconv";
78 const int program_birth_year = 2000;
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 */
86 int sync_stream_index;
90 * select an input file for an output file
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
98 static const OptionDef options[];
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;
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;
117 static int opt_shortest = 0;
118 static char *vstats_filename;
119 static FILE *vstats_file;
121 static int audio_volume = 256;
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;
132 static float dts_delta_threshold = 10;
134 static int print_stats = 1;
136 static uint8_t *audio_buf;
137 static uint8_t *audio_out;
138 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
140 static void *samples;
142 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
144 typedef struct InputStream {
147 int discard; /* true if stream data should be discarded */
148 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
151 int64_t start; /* time when read started */
152 int64_t next_pts; /* synthetic pts for cases where pkt.pts
154 int64_t pts; /* current pts */
155 PtsCorrectionContext pts_ctx;
157 int is_start; /* is 1 at the start and after a discontinuity */
158 int showed_multi_packet_warning;
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 */
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() */
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 */
180 /* input pts and corresponding output pts
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;
191 AVFrame pict_tmp; /* temporary image for resampling */
192 struct SwsContext *img_resample_ctx; /* for image resampling */
195 int resample_pix_fmt;
196 AVRational frame_rate;
200 float frame_aspect_ratio;
202 /* forced key frames */
203 int64_t *forced_kf_pts;
209 ReSampleContext *resample; /* for audio resampling */
210 int resample_sample_fmt;
211 int resample_channels;
212 int resample_sample_rate;
214 AVAudioConvert *reformat_ctx;
215 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
219 AVFilterContext *output_video_filter;
220 AVFilterContext *input_video_filter;
221 AVFilterBufferRef *picref;
223 AVFilterGraph *graph;
228 int is_past_recording_time;
230 const char *attachment_filename;
231 int copy_initial_nonkeyframes;
235 typedef struct OutputFile {
236 AVFormatContext *ctx;
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;
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;
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;
254 typedef struct OptionsContext {
255 /* input/output options */
259 SpecifierOpt *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;
267 SpecifierOpt *frame_sizes;
269 SpecifierOpt *frame_pix_fmts;
270 int nb_frame_pix_fmts;
273 int64_t input_ts_offset;
276 SpecifierOpt *ts_scale;
278 SpecifierOpt *dump_attachment;
279 int nb_dump_attachment;
282 StreamMap *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;
293 int chapters_input_file;
295 int64_t recording_time;
296 uint64_t limit_filesize;
302 int subtitle_disable;
305 /* indexed by output file stream index */
309 SpecifierOpt *metadata;
311 SpecifierOpt *max_frames;
313 SpecifierOpt *bitstream_filters;
314 int nb_bitstream_filters;
315 SpecifierOpt *codec_tags;
317 SpecifierOpt *sample_fmts;
319 SpecifierOpt *qscale;
321 SpecifierOpt *forced_key_frames;
322 int nb_forced_key_frames;
323 SpecifierOpt *force_fps;
325 SpecifierOpt *frame_aspect_ratios;
326 int nb_frame_aspect_ratios;
327 SpecifierOpt *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;
337 SpecifierOpt *copy_initial_nonkeyframes;
338 int nb_copy_initial_nonkeyframes;
340 SpecifierOpt *filters;
345 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
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;\
357 static void reset_options(OptionsContext *o)
359 const OptionDef *po = options;
361 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
363 void *dst = (uint8_t*)o + po->u.off;
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);
375 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
380 av_freep(&o->stream_maps);
381 av_freep(&o->meta_data_maps);
382 av_freep(&o->streamid_map);
384 memset(o, 0, sizeof(*o));
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;
397 static int configure_video_filters(InputStream *ist, OutputStream *ost)
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;
408 ost->graph = avfilter_graph_alloc();
410 if (ist->st->sample_aspect_ratio.num){
411 sample_aspect_ratio = ist->st->sample_aspect_ratio;
413 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
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);
419 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
420 "src", args, NULL, ost->graph);
423 ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
424 "out", NULL, &ffsink_ctx, ost->graph);
427 last_filter = ost->input_video_filter;
429 if (codec->width != icodec->width || codec->height != icodec->height) {
430 snprintf(args, 255, "%d:%d:flags=0x%X",
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)
437 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
439 last_filter = filter;
442 snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
443 ost->graph->scale_sws_opts = av_strdup(args);
446 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
447 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
449 outputs->name = av_strdup("in");
450 outputs->filter_ctx = last_filter;
451 outputs->pad_idx = 0;
452 outputs->next = NULL;
454 inputs->name = av_strdup("out");
455 inputs->filter_ctx = ost->output_video_filter;
459 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
461 av_freep(&ost->avfilter);
463 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
467 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
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;
479 #endif /* CONFIG_AVFILTER */
481 static void term_exit(void)
483 av_log(NULL, AV_LOG_QUIET, "");
486 static volatile int received_sigterm = 0;
487 static volatile int received_nb_signals = 0;
490 sigterm_handler(int sig)
492 received_sigterm = sig;
493 received_nb_signals++;
497 static void term_init(void)
499 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
500 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
502 signal(SIGXCPU, sigterm_handler);
506 static int decode_interrupt_cb(void *ctx)
508 return received_nb_signals > 1;
511 static const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
513 void exit_program(int ret)
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)
522 avformat_free_context(s);
523 av_dict_free(&output_files[i].opts);
525 for(i=0;i<nb_input_files;i++) {
526 av_close_input_file(input_files[i].ctx);
528 for (i = 0; i < nb_input_streams; i++)
529 av_dict_free(&input_streams[i].opts);
533 av_free(vstats_filename);
535 av_freep(&input_streams);
536 av_freep(&input_files);
537 av_freep(&output_streams);
538 av_freep(&output_files);
543 allocated_audio_buf_size= allocated_audio_out_size= 0;
549 avformat_network_deinit();
551 if (received_sigterm) {
552 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
553 (int) received_sigterm);
557 exit(ret); /* not all OS-es handle main() return value */
560 static void assert_avoptions(AVDictionary *m)
562 AVDictionaryEntry *t;
563 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
564 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
569 static void assert_codec_experimental(AVCodecContext *c, int encoder)
571 const char *codec_string = encoder ? "encoder" : "decoder";
573 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
574 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
575 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
576 "results.\nAdd '-strict experimental' if you want to use it.\n",
577 codec_string, c->codec->name);
578 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
579 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
580 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
581 codec_string, codec->name);
586 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
588 if(codec && codec->sample_fmts){
589 const enum AVSampleFormat *p= codec->sample_fmts;
591 if(*p == st->codec->sample_fmt)
595 av_log(NULL, AV_LOG_WARNING,
596 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
597 av_get_sample_fmt_name(st->codec->sample_fmt),
599 av_get_sample_fmt_name(codec->sample_fmts[0]));
600 st->codec->sample_fmt = codec->sample_fmts[0];
606 * Update the requested input sample format based on the output sample format.
607 * This is currently only used to request float output from decoders which
608 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
609 * Ideally this will be removed in the future when decoders do not do format
610 * conversion and only output in their native format.
612 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
615 /* if sample formats match or a decoder sample format has already been
616 requested, just return */
617 if (enc->sample_fmt == dec->sample_fmt ||
618 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
621 /* if decoder supports more than one output format */
622 if (dec_codec && dec_codec->sample_fmts &&
623 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
624 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
625 const enum AVSampleFormat *p;
626 int min_dec = -1, min_inc = -1;
628 /* find a matching sample format in the encoder */
629 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
630 if (*p == enc->sample_fmt) {
631 dec->request_sample_fmt = *p;
633 } else if (*p > enc->sample_fmt) {
634 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
636 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
639 /* if none match, provide the one that matches quality closest */
640 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
641 enc->sample_fmt - min_dec;
645 static void choose_sample_rate(AVStream *st, AVCodec *codec)
647 if(codec && codec->supported_samplerates){
648 const int *p= codec->supported_samplerates;
650 int best_dist=INT_MAX;
652 int dist= abs(st->codec->sample_rate - *p);
653 if(dist < best_dist){
659 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
661 st->codec->sample_rate= best;
665 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
667 if(codec && codec->pix_fmts){
668 const enum PixelFormat *p= codec->pix_fmts;
669 if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
670 if(st->codec->codec_id==CODEC_ID_MJPEG){
671 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
672 }else if(st->codec->codec_id==CODEC_ID_LJPEG){
673 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 for (; *p != PIX_FMT_NONE; p++) {
677 if(*p == st->codec->pix_fmt)
680 if (*p == PIX_FMT_NONE) {
681 if(st->codec->pix_fmt != PIX_FMT_NONE)
682 av_log(NULL, AV_LOG_WARNING,
683 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
684 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
686 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
687 st->codec->pix_fmt = codec->pix_fmts[0];
693 get_sync_ipts(const OutputStream *ost)
695 const InputStream *ist = ost->sync_ist;
696 OutputFile *of = &output_files[ost->file_index];
697 return (double)(ist->pts - of->start_time)/AV_TIME_BASE;
700 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
704 AVPacket new_pkt= *pkt;
705 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
706 &new_pkt.data, &new_pkt.size,
707 pkt->data, pkt->size,
708 pkt->flags & AV_PKT_FLAG_KEY);
711 new_pkt.destruct= av_destruct_packet;
713 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
714 bsfc->filter->name, pkt->stream_index,
715 avctx->codec ? avctx->codec->name : "copy");
725 ret= av_interleaved_write_frame(s, pkt);
727 print_error("av_interleaved_write_frame()", ret);
732 static void do_audio_out(AVFormatContext *s,
735 unsigned char *buf, int size)
738 int64_t audio_out_size, audio_buf_size;
739 int64_t allocated_for_size= size;
741 int size_out, frame_bytes, ret, resample_changed;
742 AVCodecContext *enc= ost->st->codec;
743 AVCodecContext *dec= ist->st->codec;
744 int osize = av_get_bytes_per_sample(enc->sample_fmt);
745 int isize = av_get_bytes_per_sample(dec->sample_fmt);
746 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
749 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
750 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
751 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
752 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
753 audio_buf_size*= osize*enc->channels;
755 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
756 if(coded_bps > 8*osize)
757 audio_out_size= audio_out_size * coded_bps / (8*osize);
758 audio_out_size += FF_MIN_BUFFER_SIZE;
760 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
761 av_log(NULL, AV_LOG_FATAL, "Buffer sizes too large\n");
765 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
766 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
767 if (!audio_buf || !audio_out){
768 av_log(NULL, AV_LOG_FATAL, "Out of memory in do_audio_out\n");
772 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
773 ost->audio_resample = 1;
775 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
776 ost->resample_channels != dec->channels ||
777 ost->resample_sample_rate != dec->sample_rate;
779 if ((ost->audio_resample && !ost->resample) || resample_changed) {
780 if (resample_changed) {
781 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",
782 ist->file_index, ist->st->index,
783 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
784 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
785 ost->resample_sample_fmt = dec->sample_fmt;
786 ost->resample_channels = dec->channels;
787 ost->resample_sample_rate = dec->sample_rate;
789 audio_resample_close(ost->resample);
791 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
792 if (audio_sync_method <= 1 &&
793 ost->resample_sample_fmt == enc->sample_fmt &&
794 ost->resample_channels == enc->channels &&
795 ost->resample_sample_rate == enc->sample_rate) {
796 ost->resample = NULL;
797 ost->audio_resample = 0;
798 } else if (ost->audio_resample) {
799 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
800 av_log(NULL, AV_LOG_WARNING, "Using s16 intermediate sample format for resampling\n");
801 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
802 enc->sample_rate, dec->sample_rate,
803 enc->sample_fmt, dec->sample_fmt,
805 if (!ost->resample) {
806 av_log(NULL, AV_LOG_FATAL, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
807 dec->channels, dec->sample_rate,
808 enc->channels, enc->sample_rate);
814 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
815 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
816 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
817 if (ost->reformat_ctx)
818 av_audio_convert_free(ost->reformat_ctx);
819 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
820 dec->sample_fmt, 1, NULL, 0);
821 if (!ost->reformat_ctx) {
822 av_log(NULL, AV_LOG_FATAL, "Cannot convert %s sample format to %s sample format\n",
823 av_get_sample_fmt_name(dec->sample_fmt),
824 av_get_sample_fmt_name(enc->sample_fmt));
827 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
830 if(audio_sync_method){
831 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
832 - av_fifo_size(ost->fifo)/(enc->channels * 2);
833 double idelta= delta*dec->sample_rate / enc->sample_rate;
834 int byte_delta= ((int)idelta)*2*dec->channels;
836 //FIXME resample delay
837 if(fabs(delta) > 50){
838 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
840 byte_delta= FFMAX(byte_delta, -size);
843 av_log(NULL, AV_LOG_VERBOSE, "discarding %d audio samples\n", (int)-delta);
848 static uint8_t *input_tmp= NULL;
849 input_tmp= av_realloc(input_tmp, byte_delta + size);
851 if(byte_delta > allocated_for_size - size){
852 allocated_for_size= byte_delta + (int64_t)size;
857 memset(input_tmp, 0, byte_delta);
858 memcpy(input_tmp + byte_delta, buf, size);
861 av_log(NULL, AV_LOG_VERBOSE, "adding %d audio samples of silence\n", (int)delta);
863 }else if(audio_sync_method>1){
864 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
865 av_assert0(ost->audio_resample);
866 av_log(NULL, AV_LOG_VERBOSE, "compensating audio timestamp drift:%f compensation:%d in:%d\n",
867 delta, comp, enc->sample_rate);
868 // 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));
869 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
873 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
874 - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
876 if (ost->audio_resample) {
878 size_out = audio_resample(ost->resample,
879 (short *)buftmp, (short *)buf,
880 size / (dec->channels * isize));
881 size_out = size_out * enc->channels * osize;
887 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
888 const void *ibuf[6]= {buftmp};
889 void *obuf[6]= {audio_buf};
890 int istride[6]= {isize};
891 int ostride[6]= {osize};
892 int len= size_out/istride[0];
893 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
894 printf("av_audio_convert() failed\n");
900 size_out = len*osize;
903 /* now encode as many frames as possible */
904 if (enc->frame_size > 1) {
905 /* output resampled raw samples */
906 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
907 av_log(NULL, AV_LOG_FATAL, "av_fifo_realloc2() failed\n");
910 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
912 frame_bytes = enc->frame_size * osize * enc->channels;
914 while (av_fifo_size(ost->fifo) >= frame_bytes) {
916 av_init_packet(&pkt);
918 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
920 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
922 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
925 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
929 pkt.stream_index= ost->index;
932 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
933 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
934 pkt.flags |= AV_PKT_FLAG_KEY;
935 write_frame(s, &pkt, enc, ost->bitstream_filters);
937 ost->sync_opts += enc->frame_size;
941 av_init_packet(&pkt);
943 ost->sync_opts += size_out / (osize * enc->channels);
945 /* output a pcm frame */
946 /* determine the size of the coded buffer */
949 size_out = size_out*coded_bps/8;
951 if(size_out > audio_out_size){
952 av_log(NULL, AV_LOG_FATAL, "Internal error, buffer size too small\n");
956 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
957 ret = avcodec_encode_audio(enc, audio_out, size_out,
960 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
964 pkt.stream_index= ost->index;
967 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
968 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
969 pkt.flags |= AV_PKT_FLAG_KEY;
970 write_frame(s, &pkt, enc, ost->bitstream_filters);
974 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
978 AVPicture picture_tmp;
981 dec = ist->st->codec;
983 /* deinterlace : must be done before any resize */
984 if (do_deinterlace) {
987 /* create temporary picture */
988 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
989 buf = av_malloc(size);
993 picture2 = &picture_tmp;
994 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
996 if(avpicture_deinterlace(picture2, picture,
997 dec->pix_fmt, dec->width, dec->height) < 0) {
998 /* if error, do not deinterlace */
999 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
1008 if (picture != picture2)
1009 *picture = *picture2;
1013 static void do_subtitle_out(AVFormatContext *s,
1019 static uint8_t *subtitle_out = NULL;
1020 int subtitle_out_max_size = 1024 * 1024;
1021 int subtitle_out_size, nb, i;
1022 AVCodecContext *enc;
1025 if (pts == AV_NOPTS_VALUE) {
1026 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
1032 enc = ost->st->codec;
1034 if (!subtitle_out) {
1035 subtitle_out = av_malloc(subtitle_out_max_size);
1038 /* Note: DVB subtitle need one packet to draw them and one other
1039 packet to clear them */
1040 /* XXX: signal it in the codec context ? */
1041 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1046 for(i = 0; i < nb; i++) {
1047 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1048 // start_display_time is required to be 0
1049 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1050 sub->end_display_time -= sub->start_display_time;
1051 sub->start_display_time = 0;
1052 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1053 subtitle_out_max_size, sub);
1054 if (subtitle_out_size < 0) {
1055 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
1059 av_init_packet(&pkt);
1060 pkt.stream_index = ost->index;
1061 pkt.data = subtitle_out;
1062 pkt.size = subtitle_out_size;
1063 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1064 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1065 /* XXX: the pts correction is handled here. Maybe handling
1066 it in the codec would be better */
1068 pkt.pts += 90 * sub->start_display_time;
1070 pkt.pts += 90 * sub->end_display_time;
1072 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1076 static int bit_buffer_size= 1024*256;
1077 static uint8_t *bit_buffer= NULL;
1079 static void do_video_resample(OutputStream *ost,
1081 AVFrame *in_picture,
1082 AVFrame **out_picture)
1084 int resample_changed = 0;
1085 AVCodecContext *dec = ist->st->codec;
1086 *out_picture = in_picture;
1088 resample_changed = ost->resample_width != dec->width ||
1089 ost->resample_height != dec->height ||
1090 ost->resample_pix_fmt != dec->pix_fmt;
1092 if (resample_changed) {
1093 av_log(NULL, AV_LOG_INFO,
1094 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1095 ist->file_index, ist->st->index,
1096 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1097 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt));
1098 if(!ost->video_resample)
1099 ost->video_resample = 1;
1102 #if !CONFIG_AVFILTER
1103 if (ost->video_resample) {
1104 *out_picture = &ost->pict_tmp;
1105 if (resample_changed) {
1106 /* initialize a new scaler context */
1107 sws_freeContext(ost->img_resample_ctx);
1108 ost->img_resample_ctx = sws_getContext(
1109 ist->st->codec->width,
1110 ist->st->codec->height,
1111 ist->st->codec->pix_fmt,
1112 ost->st->codec->width,
1113 ost->st->codec->height,
1114 ost->st->codec->pix_fmt,
1115 ost->sws_flags, NULL, NULL, NULL);
1116 if (ost->img_resample_ctx == NULL) {
1117 av_log(NULL, AV_LOG_FATAL, "Cannot get resampling context\n");
1121 sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1122 0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1125 if (resample_changed) {
1126 avfilter_graph_free(&ost->graph);
1127 if (configure_video_filters(ist, ost)) {
1128 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1133 if (resample_changed) {
1134 ost->resample_width = dec->width;
1135 ost->resample_height = dec->height;
1136 ost->resample_pix_fmt = dec->pix_fmt;
1141 static void do_video_out(AVFormatContext *s,
1144 AVFrame *in_picture,
1145 int *frame_size, float quality)
1147 int nb_frames, i, ret, format_video_sync;
1148 AVFrame *final_picture;
1149 AVCodecContext *enc;
1152 enc = ost->st->codec;
1154 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1156 /* by default, we output a single frame */
1161 format_video_sync = video_sync_method;
1162 if (format_video_sync < 0)
1163 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? 0 :
1164 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1166 if (format_video_sync) {
1167 double vdelta = sync_ipts - ost->sync_opts;
1168 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1171 else if (format_video_sync == 2) {
1174 }else if(vdelta>0.6)
1175 ost->sync_opts= lrintf(sync_ipts);
1176 }else if (vdelta > 1.1)
1177 nb_frames = lrintf(vdelta);
1178 //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);
1179 if (nb_frames == 0){
1181 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
1182 }else if (nb_frames > 1) {
1183 nb_frames_dup += nb_frames - 1;
1184 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames-1);
1187 ost->sync_opts= lrintf(sync_ipts);
1189 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
1193 do_video_resample(ost, ist, in_picture, &final_picture);
1195 /* duplicates frame if needed */
1196 for(i=0;i<nb_frames;i++) {
1198 av_init_packet(&pkt);
1199 pkt.stream_index= ost->index;
1201 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1202 /* raw pictures are written as AVPicture structure to
1203 avoid any copies. We support temporarily the older
1205 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1206 enc->coded_frame->top_field_first = in_picture->top_field_first;
1207 pkt.data= (uint8_t *)final_picture;
1208 pkt.size= sizeof(AVPicture);
1209 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1210 pkt.flags |= AV_PKT_FLAG_KEY;
1212 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1214 AVFrame big_picture;
1216 big_picture= *final_picture;
1217 /* better than nothing: use input picture interlaced
1219 big_picture.interlaced_frame = in_picture->interlaced_frame;
1220 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1221 if (ost->top_field_first == -1)
1222 big_picture.top_field_first = in_picture->top_field_first;
1224 big_picture.top_field_first = !!ost->top_field_first;
1227 /* handles same_quant here. This is not correct because it may
1228 not be a global option */
1229 big_picture.quality = quality;
1230 if (!enc->me_threshold)
1231 big_picture.pict_type = 0;
1232 // big_picture.pts = AV_NOPTS_VALUE;
1233 big_picture.pts= ost->sync_opts;
1234 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1235 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1236 if (ost->forced_kf_index < ost->forced_kf_count &&
1237 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1238 big_picture.pict_type = AV_PICTURE_TYPE_I;
1239 ost->forced_kf_index++;
1241 ret = avcodec_encode_video(enc,
1242 bit_buffer, bit_buffer_size,
1245 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1250 pkt.data= bit_buffer;
1252 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1253 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1254 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1255 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1256 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1258 if(enc->coded_frame->key_frame)
1259 pkt.flags |= AV_PKT_FLAG_KEY;
1260 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1263 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1264 // enc->frame_number-1, ret, enc->pict_type);
1265 /* if two pass, output log */
1266 if (ost->logfile && enc->stats_out) {
1267 fprintf(ost->logfile, "%s", enc->stats_out);
1272 ost->frame_number++;
1276 static double psnr(double d){
1277 return -10.0*log(d)/log(10.0);
1280 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1283 AVCodecContext *enc;
1285 double ti1, bitrate, avg_bitrate;
1287 /* this is executed just the first time do_video_stats is called */
1289 vstats_file = fopen(vstats_filename, "w");
1296 enc = ost->st->codec;
1297 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1298 frame_number = ost->frame_number;
1299 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1300 if (enc->flags&CODEC_FLAG_PSNR)
1301 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1303 fprintf(vstats_file,"f_size= %6d ", frame_size);
1304 /* compute pts value */
1305 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1309 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1310 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1311 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1312 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1313 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1317 static void print_report(OutputFile *output_files,
1318 OutputStream *ost_table, int nb_ostreams,
1319 int is_last_report, int64_t timer_start)
1323 AVFormatContext *oc;
1325 AVCodecContext *enc;
1326 int frame_number, vid, i;
1327 double bitrate, ti1, pts;
1328 static int64_t last_time = -1;
1329 static int qp_histogram[52];
1331 if (!print_stats && !is_last_report)
1334 if (!is_last_report) {
1336 /* display the report every 0.5 seconds */
1337 cur_time = av_gettime();
1338 if (last_time == -1) {
1339 last_time = cur_time;
1342 if ((cur_time - last_time) < 500000)
1344 last_time = cur_time;
1348 oc = output_files[0].ctx;
1350 total_size = avio_size(oc->pb);
1351 if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1352 total_size= avio_tell(oc->pb);
1357 for(i=0;i<nb_ostreams;i++) {
1359 ost = &ost_table[i];
1360 enc = ost->st->codec;
1361 if (!ost->stream_copy && enc->coded_frame)
1362 q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1363 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1364 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1366 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1367 float t = (av_gettime()-timer_start) / 1000000.0;
1369 frame_number = ost->frame_number;
1370 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1371 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1373 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1377 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1380 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1382 if (enc->flags&CODEC_FLAG_PSNR){
1384 double error, error_sum=0;
1385 double scale, scale_sum=0;
1386 char type[3]= {'Y','U','V'};
1387 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1390 error= enc->error[j];
1391 scale= enc->width*enc->height*255.0*255.0*frame_number;
1393 error= enc->coded_frame->error[j];
1394 scale= enc->width*enc->height*255.0*255.0;
1399 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1401 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1405 /* compute min output value */
1406 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1407 if ((pts < ti1) && (pts > 0))
1413 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1415 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1416 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1417 (double)total_size / 1024, ti1, bitrate);
1419 if (nb_frames_dup || nb_frames_drop)
1420 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1421 nb_frames_dup, nb_frames_drop);
1423 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1427 if (is_last_report) {
1428 int64_t raw= audio_size + video_size + extra_size;
1429 av_log(NULL, AV_LOG_INFO, "\n");
1430 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1434 100.0*(total_size - raw)/raw
1439 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1441 int fill_char = 0x00;
1442 if (sample_fmt == AV_SAMPLE_FMT_U8)
1444 memset(buf, fill_char, size);
1447 static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
1451 for (i = 0; i < nb_ostreams; i++) {
1452 OutputStream *ost = &ost_table[i];
1453 AVCodecContext *enc = ost->st->codec;
1454 AVFormatContext *os = output_files[ost->file_index].ctx;
1456 if (!ost->encoding_needed)
1459 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1461 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1467 av_init_packet(&pkt);
1468 pkt.stream_index= ost->index;
1470 switch (ost->st->codec->codec_type) {
1471 case AVMEDIA_TYPE_AUDIO:
1472 fifo_bytes = av_fifo_size(ost->fifo);
1474 /* encode any samples remaining in fifo */
1475 if (fifo_bytes > 0) {
1476 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1477 int fs_tmp = enc->frame_size;
1479 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1480 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1481 enc->frame_size = fifo_bytes / (osize * enc->channels);
1483 int frame_bytes = enc->frame_size*osize*enc->channels;
1484 if (allocated_audio_buf_size < frame_bytes)
1486 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1489 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1490 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1491 ost->st->time_base.num, enc->sample_rate);
1492 enc->frame_size = fs_tmp;
1495 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1498 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
1502 pkt.flags |= AV_PKT_FLAG_KEY;
1504 case AVMEDIA_TYPE_VIDEO:
1505 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1507 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1511 if(enc->coded_frame && enc->coded_frame->key_frame)
1512 pkt.flags |= AV_PKT_FLAG_KEY;
1513 if (ost->logfile && enc->stats_out) {
1514 fprintf(ost->logfile, "%s", enc->stats_out);
1523 pkt.data = bit_buffer;
1525 if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1526 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1527 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1533 * Check whether a packet from ist should be written into ost at this time
1535 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1537 OutputFile *of = &output_files[ost->file_index];
1538 int ist_index = ist - input_streams;
1540 if (ost->source_index != ist_index)
1543 if (of->start_time && ist->pts < of->start_time)
1546 if (of->recording_time != INT64_MAX &&
1547 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1548 (AVRational){1, 1000000}) >= 0) {
1549 ost->is_past_recording_time = 1;
1556 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1558 OutputFile *of = &output_files[ost->file_index];
1559 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1562 av_init_packet(&opkt);
1564 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1565 !ost->copy_initial_nonkeyframes)
1568 /* force the input stream PTS */
1569 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1570 audio_size += pkt->size;
1571 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1572 video_size += pkt->size;
1576 opkt.stream_index = ost->index;
1577 if (pkt->pts != AV_NOPTS_VALUE)
1578 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1580 opkt.pts = AV_NOPTS_VALUE;
1582 if (pkt->dts == AV_NOPTS_VALUE)
1583 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1585 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1586 opkt.dts -= ost_tb_start_time;
1588 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1589 opkt.flags = pkt->flags;
1591 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1592 if( ost->st->codec->codec_id != CODEC_ID_H264
1593 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1594 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1596 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1597 opkt.destruct = av_destruct_packet;
1599 opkt.data = pkt->data;
1600 opkt.size = pkt->size;
1603 write_frame(of->ctx, &opkt, ost->st->codec, ost->bitstream_filters);
1604 ost->st->codec->frame_number++;
1605 ost->frame_number++;
1606 av_free_packet(&opkt);
1609 static void rate_emu_sleep(InputStream *ist)
1611 if (input_files[ist->file_index].rate_emu) {
1612 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1613 int64_t now = av_gettime() - ist->start;
1619 static int transcode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1621 static unsigned int samples_size = 0;
1622 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1623 uint8_t *decoded_data_buf = NULL;
1624 int decoded_data_size = 0;
1627 if (pkt && samples_size < FFMAX(pkt->size * bps, AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1629 samples_size = FFMAX(pkt->size * bps, AVCODEC_MAX_AUDIO_FRAME_SIZE);
1630 samples = av_malloc(samples_size);
1632 decoded_data_size = samples_size;
1634 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1638 *got_output = decoded_data_size > 0;
1640 /* Some bug in mpeg audio decoder gives */
1641 /* decoded_data_size < 0, it seems they are overflows */
1643 /* no audio frame */
1647 decoded_data_buf = (uint8_t *)samples;
1648 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1649 (ist->st->codec->sample_rate * ist->st->codec->channels);
1651 // preprocess audio (volume)
1652 if (audio_volume != 256) {
1653 switch (ist->st->codec->sample_fmt) {
1654 case AV_SAMPLE_FMT_U8:
1656 uint8_t *volp = samples;
1657 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1658 int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
1659 *volp++ = av_clip_uint8(v);
1663 case AV_SAMPLE_FMT_S16:
1665 int16_t *volp = samples;
1666 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1667 int v = ((*volp) * audio_volume + 128) >> 8;
1668 *volp++ = av_clip_int16(v);
1672 case AV_SAMPLE_FMT_S32:
1674 int32_t *volp = samples;
1675 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1676 int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
1677 *volp++ = av_clipl_int32(v);
1681 case AV_SAMPLE_FMT_FLT:
1683 float *volp = samples;
1684 float scale = audio_volume / 256.f;
1685 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1690 case AV_SAMPLE_FMT_DBL:
1692 double *volp = samples;
1693 double scale = audio_volume / 256.;
1694 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1700 av_log(NULL, AV_LOG_FATAL,
1701 "Audio volume adjustment on sample format %s is not supported.\n",
1702 av_get_sample_fmt_name(ist->st->codec->sample_fmt));
1707 rate_emu_sleep(ist);
1709 for (i = 0; i < nb_output_streams; i++) {
1710 OutputStream *ost = &output_streams[i];
1712 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1714 do_audio_out(output_files[ost->file_index].ctx, ost, ist,
1715 decoded_data_buf, decoded_data_size);
1720 static int transcode_video(InputStream *ist, AVPacket *pkt, int *got_output, int64_t *pkt_pts)
1722 AVFrame *decoded_frame, *filtered_frame = NULL;
1723 void *buffer_to_free = NULL;
1727 int frame_available = 1;
1730 if (!(decoded_frame = avcodec_alloc_frame()))
1731 return AVERROR(ENOMEM);
1732 pkt->pts = *pkt_pts;
1733 pkt->dts = ist->pts;
1734 *pkt_pts = AV_NOPTS_VALUE;
1736 ret = avcodec_decode_video2(ist->st->codec,
1737 decoded_frame, got_output, pkt);
1741 quality = same_quant ? decoded_frame->quality : 0;
1743 /* no picture yet */
1744 av_freep(&decoded_frame);
1747 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1748 decoded_frame->pkt_dts);
1749 if (ist->st->codec->time_base.num != 0) {
1750 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1751 ist->st->codec->ticks_per_frame;
1752 ist->next_pts += ((int64_t)AV_TIME_BASE *
1753 ist->st->codec->time_base.num * ticks) /
1754 ist->st->codec->time_base.den;
1757 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1759 rate_emu_sleep(ist);
1761 for (i = 0; i < nb_output_streams; i++) {
1762 OutputStream *ost = &output_streams[i];
1765 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1769 if (ost->input_video_filter) {
1771 if (ist->st->sample_aspect_ratio.num)
1772 sar = ist->st->sample_aspect_ratio;
1774 sar = ist->st->codec->sample_aspect_ratio;
1775 av_vsrc_buffer_add_frame(ost->input_video_filter, decoded_frame, ist->pts, sar);
1776 if (!(filtered_frame = avcodec_alloc_frame())) {
1777 ret = AVERROR(ENOMEM);
1780 frame_available = avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1782 while (frame_available) {
1783 AVRational ist_pts_tb;
1784 if (ost->output_video_filter)
1785 get_filtered_video_frame(ost->output_video_filter, filtered_frame, &ost->picref, &ist_pts_tb);
1787 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1788 if (ost->picref->video && !ost->frame_aspect_ratio)
1789 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1791 filtered_frame = decoded_frame;
1794 do_video_out(output_files[ost->file_index].ctx, ost, ist, filtered_frame, &frame_size,
1795 same_quant ? quality : ost->st->codec->global_quality);
1796 if (vstats_filename && frame_size)
1797 do_video_stats(output_files[ost->file_index].ctx, ost, frame_size);
1799 frame_available = ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1801 avfilter_unref_buffer(ost->picref);
1803 av_freep(&filtered_frame);
1808 av_free(buffer_to_free);
1809 av_freep(&decoded_frame);
1813 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1815 AVSubtitle subtitle;
1816 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1817 &subtitle, got_output, pkt);
1823 rate_emu_sleep(ist);
1825 for (i = 0; i < nb_output_streams; i++) {
1826 OutputStream *ost = &output_streams[i];
1828 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1831 do_subtitle_out(output_files[ost->file_index].ctx, ost, ist, &subtitle, pkt->pts);
1834 avsubtitle_free(&subtitle);
1838 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1839 static int output_packet(InputStream *ist,
1840 OutputStream *ost_table, int nb_ostreams,
1841 const AVPacket *pkt)
1845 int64_t pkt_pts = AV_NOPTS_VALUE;
1848 if (ist->next_pts == AV_NOPTS_VALUE)
1849 ist->next_pts = ist->pts;
1853 av_init_packet(&avpkt);
1861 if(pkt->dts != AV_NOPTS_VALUE)
1862 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1863 if(pkt->pts != AV_NOPTS_VALUE)
1864 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1866 //while we have more to decode or while the decoder did output something on EOF
1867 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1871 ist->pts = ist->next_pts;
1873 if (avpkt.size && avpkt.size != pkt->size) {
1874 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1875 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1876 ist->showed_multi_packet_warning = 1;
1879 switch(ist->st->codec->codec_type) {
1880 case AVMEDIA_TYPE_AUDIO:
1881 ret = transcode_audio (ist, &avpkt, &got_output);
1883 case AVMEDIA_TYPE_VIDEO:
1884 ret = transcode_video (ist, &avpkt, &got_output, &pkt_pts);
1886 case AVMEDIA_TYPE_SUBTITLE:
1887 ret = transcode_subtitles(ist, &avpkt, &got_output);
1902 /* handle stream copy */
1903 if (!ist->decoding_needed) {
1904 rate_emu_sleep(ist);
1905 switch (ist->st->codec->codec_type) {
1906 case AVMEDIA_TYPE_AUDIO:
1907 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1908 ist->st->codec->sample_rate;
1910 case AVMEDIA_TYPE_VIDEO:
1911 if (ist->st->codec->time_base.num != 0) {
1912 int ticks = ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1913 ist->next_pts += ((int64_t)AV_TIME_BASE *
1914 ist->st->codec->time_base.num * ticks) /
1915 ist->st->codec->time_base.den;
1920 for (i = 0; pkt && i < nb_ostreams; i++) {
1921 OutputStream *ost = &ost_table[i];
1923 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1926 do_streamcopy(ist, ost, pkt);
1932 static void print_sdp(OutputFile *output_files, int n)
1936 AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
1940 for (i = 0; i < n; i++)
1941 avc[i] = output_files[i].ctx;
1943 av_sdp_create(avc, n, sdp, sizeof(sdp));
1944 printf("SDP:\n%s\n", sdp);
1949 static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
1950 char *error, int error_len)
1953 InputStream *ist = &input_streams[ist_index];
1954 if (ist->decoding_needed) {
1955 AVCodec *codec = ist->dec;
1957 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
1958 ist->st->codec->codec_id, ist->file_index, ist->st->index);
1959 return AVERROR(EINVAL);
1962 /* update requested sample format for the decoder based on the
1963 corresponding encoder sample format */
1964 for (i = 0; i < nb_output_streams; i++) {
1965 OutputStream *ost = &output_streams[i];
1966 if (ost->source_index == ist_index) {
1967 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
1972 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
1973 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
1974 ist->file_index, ist->st->index);
1975 return AVERROR(EINVAL);
1977 assert_codec_experimental(ist->st->codec, 0);
1978 assert_avoptions(ist->opts);
1981 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;
1982 ist->next_pts = AV_NOPTS_VALUE;
1983 init_pts_correction(&ist->pts_ctx);
1989 static int transcode_init(OutputFile *output_files,
1990 int nb_output_files,
1991 InputFile *input_files,
1994 int ret = 0, i, j, k;
1995 AVFormatContext *oc;
1996 AVCodecContext *codec, *icodec;
2002 /* init framerate emulation */
2003 for (i = 0; i < nb_input_files; i++) {
2004 InputFile *ifile = &input_files[i];
2005 if (ifile->rate_emu)
2006 for (j = 0; j < ifile->nb_streams; j++)
2007 input_streams[j + ifile->ist_index].start = av_gettime();
2010 /* output stream init */
2011 for (i = 0; i < nb_output_files; i++) {
2012 oc = output_files[i].ctx;
2013 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2014 av_dump_format(oc, i, oc->filename, 1);
2015 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2016 return AVERROR(EINVAL);
2020 /* for each output stream, we compute the right encoding parameters */
2021 for (i = 0; i < nb_output_streams; i++) {
2022 ost = &output_streams[i];
2023 oc = output_files[ost->file_index].ctx;
2024 ist = &input_streams[ost->source_index];
2026 if (ost->attachment_filename)
2029 codec = ost->st->codec;
2030 icodec = ist->st->codec;
2032 ost->st->disposition = ist->st->disposition;
2033 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2034 codec->chroma_sample_location = icodec->chroma_sample_location;
2036 if (ost->stream_copy) {
2037 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2039 if (extra_size > INT_MAX) {
2040 return AVERROR(EINVAL);
2043 /* if stream_copy is selected, no need to decode or encode */
2044 codec->codec_id = icodec->codec_id;
2045 codec->codec_type = icodec->codec_type;
2047 if (!codec->codec_tag) {
2048 if (!oc->oformat->codec_tag ||
2049 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2050 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
2051 codec->codec_tag = icodec->codec_tag;
2054 codec->bit_rate = icodec->bit_rate;
2055 codec->rc_max_rate = icodec->rc_max_rate;
2056 codec->rc_buffer_size = icodec->rc_buffer_size;
2057 codec->extradata = av_mallocz(extra_size);
2058 if (!codec->extradata) {
2059 return AVERROR(ENOMEM);
2061 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2062 codec->extradata_size = icodec->extradata_size;
2064 av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) &&
2065 av_q2d(ist->st->time_base) < 1.0/500) {
2066 codec->time_base = icodec->time_base;
2067 codec->time_base.num *= icodec->ticks_per_frame;
2068 av_reduce(&codec->time_base.num, &codec->time_base.den,
2069 codec->time_base.num, codec->time_base.den, INT_MAX);
2071 codec->time_base = ist->st->time_base;
2073 switch(codec->codec_type) {
2074 case AVMEDIA_TYPE_AUDIO:
2075 if(audio_volume != 256) {
2076 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2079 codec->channel_layout = icodec->channel_layout;
2080 codec->sample_rate = icodec->sample_rate;
2081 codec->channels = icodec->channels;
2082 codec->frame_size = icodec->frame_size;
2083 codec->audio_service_type = icodec->audio_service_type;
2084 codec->block_align = icodec->block_align;
2086 case AVMEDIA_TYPE_VIDEO:
2087 codec->pix_fmt = icodec->pix_fmt;
2088 codec->width = icodec->width;
2089 codec->height = icodec->height;
2090 codec->has_b_frames = icodec->has_b_frames;
2091 if (!codec->sample_aspect_ratio.num) {
2092 codec->sample_aspect_ratio =
2093 ost->st->sample_aspect_ratio =
2094 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2095 ist->st->codec->sample_aspect_ratio.num ?
2096 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2099 case AVMEDIA_TYPE_SUBTITLE:
2100 codec->width = icodec->width;
2101 codec->height = icodec->height;
2103 case AVMEDIA_TYPE_DATA:
2104 case AVMEDIA_TYPE_ATTACHMENT:
2111 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2113 ist->decoding_needed = 1;
2114 ost->encoding_needed = 1;
2116 switch(codec->codec_type) {
2117 case AVMEDIA_TYPE_AUDIO:
2118 ost->fifo = av_fifo_alloc(1024);
2120 return AVERROR(ENOMEM);
2122 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2124 if (!codec->sample_rate)
2125 codec->sample_rate = icodec->sample_rate;
2126 choose_sample_rate(ost->st, ost->enc);
2127 codec->time_base = (AVRational){1, codec->sample_rate};
2129 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2130 codec->sample_fmt = icodec->sample_fmt;
2131 choose_sample_fmt(ost->st, ost->enc);
2133 if (!codec->channels)
2134 codec->channels = icodec->channels;
2135 codec->channel_layout = icodec->channel_layout;
2136 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2137 codec->channel_layout = 0;
2139 ost->audio_resample = codec-> sample_rate != icodec->sample_rate || audio_sync_method > 1;
2140 icodec->request_channels = codec-> channels;
2141 ost->resample_sample_fmt = icodec->sample_fmt;
2142 ost->resample_sample_rate = icodec->sample_rate;
2143 ost->resample_channels = icodec->channels;
2145 case AVMEDIA_TYPE_VIDEO:
2146 if (codec->pix_fmt == PIX_FMT_NONE)
2147 codec->pix_fmt = icodec->pix_fmt;
2148 choose_pixel_fmt(ost->st, ost->enc);
2150 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2151 av_log(NULL, AV_LOG_FATAL, "Video pixel format is unknown, stream cannot be encoded\n");
2155 if (!codec->width || !codec->height) {
2156 codec->width = icodec->width;
2157 codec->height = icodec->height;
2160 ost->video_resample = codec->width != icodec->width ||
2161 codec->height != icodec->height ||
2162 codec->pix_fmt != icodec->pix_fmt;
2163 if (ost->video_resample) {
2164 #if !CONFIG_AVFILTER
2165 avcodec_get_frame_defaults(&ost->pict_tmp);
2166 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2167 codec->width, codec->height)) {
2168 av_log(NULL, AV_LOG_FATAL, "Cannot allocate temp picture, check pix fmt\n");
2171 ost->img_resample_ctx = sws_getContext(
2178 ost->sws_flags, NULL, NULL, NULL);
2179 if (ost->img_resample_ctx == NULL) {
2180 av_log(NULL, AV_LOG_FATAL, "Cannot get resampling context\n");
2184 codec->bits_per_raw_sample= 0;
2187 ost->resample_height = icodec->height;
2188 ost->resample_width = icodec->width;
2189 ost->resample_pix_fmt = icodec->pix_fmt;
2191 if (!ost->frame_rate.num)
2192 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2193 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2194 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2195 ost->frame_rate = ost->enc->supported_framerates[idx];
2197 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2200 if (configure_video_filters(ist, ost)) {
2201 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2206 case AVMEDIA_TYPE_SUBTITLE:
2213 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2214 char logfilename[1024];
2217 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2218 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2220 if (codec->flags & CODEC_FLAG_PASS1) {
2221 f = fopen(logfilename, "wb");
2223 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2224 logfilename, strerror(errno));
2230 size_t logbuffer_size;
2231 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2232 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2236 codec->stats_in = logbuffer;
2240 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2241 int size = codec->width * codec->height;
2242 bit_buffer_size = FFMAX(bit_buffer_size, 6*size + 200);
2247 bit_buffer = av_malloc(bit_buffer_size);
2249 av_log(NULL, AV_LOG_ERROR, "Cannot allocate %d bytes output buffer\n",
2251 return AVERROR(ENOMEM);
2254 /* open each encoder */
2255 for (i = 0; i < nb_output_streams; i++) {
2256 ost = &output_streams[i];
2257 if (ost->encoding_needed) {
2258 AVCodec *codec = ost->enc;
2259 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2261 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d:%d",
2262 ost->st->codec->codec_id, ost->file_index, ost->index);
2263 ret = AVERROR(EINVAL);
2266 if (dec->subtitle_header) {
2267 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2268 if (!ost->st->codec->subtitle_header) {
2269 ret = AVERROR(ENOMEM);
2272 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2273 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2275 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2276 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2277 ost->file_index, ost->index);
2278 ret = AVERROR(EINVAL);
2281 assert_codec_experimental(ost->st->codec, 1);
2282 assert_avoptions(ost->opts);
2283 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2284 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2285 "It takes bits/s as argument, not kbits/s\n");
2286 extra_size += ost->st->codec->extradata_size;
2288 if (ost->st->codec->me_threshold)
2289 input_streams[ost->source_index].st->codec->debug |= FF_DEBUG_MV;
2293 /* init input streams */
2294 for (i = 0; i < nb_input_streams; i++)
2295 if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0)
2298 /* discard unused programs */
2299 for (i = 0; i < nb_input_files; i++) {
2300 InputFile *ifile = &input_files[i];
2301 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2302 AVProgram *p = ifile->ctx->programs[j];
2303 int discard = AVDISCARD_ALL;
2305 for (k = 0; k < p->nb_stream_indexes; k++)
2306 if (!input_streams[ifile->ist_index + p->stream_index[k]].discard) {
2307 discard = AVDISCARD_DEFAULT;
2310 p->discard = discard;
2314 /* open files and write file headers */
2315 for (i = 0; i < nb_output_files; i++) {
2316 oc = output_files[i].ctx;
2317 oc->interrupt_callback = int_cb;
2318 if (avformat_write_header(oc, &output_files[i].opts) < 0) {
2319 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2320 ret = AVERROR(EINVAL);
2323 assert_avoptions(output_files[i].opts);
2324 if (strcmp(oc->oformat->name, "rtp")) {
2330 /* dump the file output parameters - cannot be done before in case
2332 for (i = 0; i < nb_output_files; i++) {
2333 av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2336 /* dump the stream mapping */
2337 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2338 for (i = 0; i < nb_output_streams; i++) {
2339 ost = &output_streams[i];
2341 if (ost->attachment_filename) {
2342 /* an attached file */
2343 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2344 ost->attachment_filename, ost->file_index, ost->index);
2347 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2348 input_streams[ost->source_index].file_index,
2349 input_streams[ost->source_index].st->index,
2352 if (ost->sync_ist != &input_streams[ost->source_index])
2353 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2354 ost->sync_ist->file_index,
2355 ost->sync_ist->st->index);
2356 if (ost->stream_copy)
2357 av_log(NULL, AV_LOG_INFO, " (copy)");
2359 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index].dec ?
2360 input_streams[ost->source_index].dec->name : "?",
2361 ost->enc ? ost->enc->name : "?");
2362 av_log(NULL, AV_LOG_INFO, "\n");
2366 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2371 print_sdp(output_files, nb_output_files);
2378 * The following code is the main loop of the file converter
2380 static int transcode(OutputFile *output_files,
2381 int nb_output_files,
2382 InputFile *input_files,
2386 AVFormatContext *is, *os;
2390 int no_packet_count=0;
2391 int64_t timer_start;
2393 if (!(no_packet = av_mallocz(nb_input_files)))
2396 ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
2400 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2403 timer_start = av_gettime();
2405 for(; received_sigterm == 0;) {
2406 int file_index, ist_index;
2411 ipts_min = INT64_MAX;
2414 /* select the stream that we must read now by looking at the
2415 smallest output pts */
2417 for (i = 0; i < nb_output_streams; i++) {
2421 ost = &output_streams[i];
2422 of = &output_files[ost->file_index];
2423 os = output_files[ost->file_index].ctx;
2424 ist = &input_streams[ost->source_index];
2425 if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2426 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2428 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2430 if (!input_files[ist->file_index].eof_reached){
2431 if(ipts < ipts_min) {
2433 if(input_sync ) file_index = ist->file_index;
2435 if(opts < opts_min) {
2437 if(!input_sync) file_index = ist->file_index;
2440 if (ost->frame_number >= ost->max_frames) {
2442 for (j = 0; j < of->ctx->nb_streams; j++)
2443 output_streams[of->ost_index + j].is_past_recording_time = 1;
2447 /* if none, if is finished */
2448 if (file_index < 0) {
2449 if(no_packet_count){
2451 memset(no_packet, 0, nb_input_files);
2458 /* read a frame from it and output it in the fifo */
2459 is = input_files[file_index].ctx;
2460 ret= av_read_frame(is, &pkt);
2461 if(ret == AVERROR(EAGAIN)){
2462 no_packet[file_index]=1;
2467 input_files[file_index].eof_reached = 1;
2475 memset(no_packet, 0, nb_input_files);
2478 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2479 is->streams[pkt.stream_index]);
2481 /* the following test is needed in case new streams appear
2482 dynamically in stream : we ignore them */
2483 if (pkt.stream_index >= input_files[file_index].nb_streams)
2484 goto discard_packet;
2485 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2486 ist = &input_streams[ist_index];
2488 goto discard_packet;
2490 if (pkt.dts != AV_NOPTS_VALUE)
2491 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2492 if (pkt.pts != AV_NOPTS_VALUE)
2493 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2495 if(pkt.pts != AV_NOPTS_VALUE)
2496 pkt.pts *= ist->ts_scale;
2497 if(pkt.dts != AV_NOPTS_VALUE)
2498 pkt.dts *= ist->ts_scale;
2500 // 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);
2501 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2502 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2503 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2504 int64_t delta= pkt_dts - ist->next_pts;
2505 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2506 input_files[ist->file_index].ts_offset -= delta;
2507 av_log(NULL, AV_LOG_DEBUG, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2508 delta, input_files[ist->file_index].ts_offset);
2509 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2510 if(pkt.pts != AV_NOPTS_VALUE)
2511 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2515 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2516 if (output_packet(ist, output_streams, nb_output_streams, &pkt) < 0) {
2518 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
2519 ist->file_index, ist->st->index);
2522 av_free_packet(&pkt);
2527 av_free_packet(&pkt);
2529 /* dump report by using the output first video and audio streams */
2530 print_report(output_files, output_streams, nb_output_streams, 0, timer_start);
2533 /* at the end of stream, we must flush the decoder buffers */
2534 for (i = 0; i < nb_input_streams; i++) {
2535 ist = &input_streams[i];
2536 if (ist->decoding_needed) {
2537 output_packet(ist, output_streams, nb_output_streams, NULL);
2540 flush_encoders(output_streams, nb_output_streams);
2544 /* write the trailer if needed and close file */
2545 for(i=0;i<nb_output_files;i++) {
2546 os = output_files[i].ctx;
2547 av_write_trailer(os);
2550 /* dump report by using the first video and audio streams */
2551 print_report(output_files, output_streams, nb_output_streams, 1, timer_start);
2553 /* close each encoder */
2554 for (i = 0; i < nb_output_streams; i++) {
2555 ost = &output_streams[i];
2556 if (ost->encoding_needed) {
2557 av_freep(&ost->st->codec->stats_in);
2558 avcodec_close(ost->st->codec);
2561 avfilter_graph_free(&ost->graph);
2565 /* close each decoder */
2566 for (i = 0; i < nb_input_streams; i++) {
2567 ist = &input_streams[i];
2568 if (ist->decoding_needed) {
2569 avcodec_close(ist->st->codec);
2577 av_freep(&bit_buffer);
2578 av_freep(&no_packet);
2580 if (output_streams) {
2581 for (i = 0; i < nb_output_streams; i++) {
2582 ost = &output_streams[i];
2584 if (ost->stream_copy)
2585 av_freep(&ost->st->codec->extradata);
2587 fclose(ost->logfile);
2588 ost->logfile = NULL;
2590 av_fifo_free(ost->fifo); /* works even if fifo is not
2591 initialized but set to zero */
2592 av_freep(&ost->st->codec->subtitle_header);
2593 av_free(ost->pict_tmp.data[0]);
2594 av_free(ost->forced_kf_pts);
2595 if (ost->video_resample)
2596 sws_freeContext(ost->img_resample_ctx);
2598 audio_resample_close(ost->resample);
2599 if (ost->reformat_ctx)
2600 av_audio_convert_free(ost->reformat_ctx);
2601 av_dict_free(&ost->opts);
2608 static double parse_frame_aspect_ratio(const char *arg)
2615 p = strchr(arg, ':');
2617 x = strtol(arg, &end, 10);
2619 y = strtol(end+1, &end, 10);
2621 ar = (double)x / (double)y;
2623 ar = strtod(arg, NULL);
2626 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
2632 static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
2634 return parse_option(o, "codec:a", arg, options);
2637 static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
2639 return parse_option(o, "codec:v", arg, options);
2642 static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
2644 return parse_option(o, "codec:s", arg, options);
2647 static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
2649 return parse_option(o, "codec:d", arg, options);
2652 static int opt_map(OptionsContext *o, const char *opt, const char *arg)
2654 StreamMap *m = NULL;
2655 int i, negative = 0, file_idx;
2656 int sync_file_idx = -1, sync_stream_idx;
2664 map = av_strdup(arg);
2666 /* parse sync stream first, just pick first matching stream */
2667 if (sync = strchr(map, ',')) {
2669 sync_file_idx = strtol(sync + 1, &sync, 0);
2670 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2671 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
2676 for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
2677 if (check_stream_specifier(input_files[sync_file_idx].ctx,
2678 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2679 sync_stream_idx = i;
2682 if (i == input_files[sync_file_idx].nb_streams) {
2683 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
2684 "match any streams.\n", arg);
2690 file_idx = strtol(map, &p, 0);
2691 if (file_idx >= nb_input_files || file_idx < 0) {
2692 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
2696 /* disable some already defined maps */
2697 for (i = 0; i < o->nb_stream_maps; i++) {
2698 m = &o->stream_maps[i];
2699 if (file_idx == m->file_index &&
2700 check_stream_specifier(input_files[m->file_index].ctx,
2701 input_files[m->file_index].ctx->streams[m->stream_index],
2702 *p == ':' ? p + 1 : p) > 0)
2706 for (i = 0; i < input_files[file_idx].nb_streams; i++) {
2707 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2708 *p == ':' ? p + 1 : p) <= 0)
2710 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
2711 &o->nb_stream_maps, o->nb_stream_maps + 1);
2712 m = &o->stream_maps[o->nb_stream_maps - 1];
2714 m->file_index = file_idx;
2715 m->stream_index = i;
2717 if (sync_file_idx >= 0) {
2718 m->sync_file_index = sync_file_idx;
2719 m->sync_stream_index = sync_stream_idx;
2721 m->sync_file_index = file_idx;
2722 m->sync_stream_index = i;
2727 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
2735 static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
2737 o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
2738 &o->nb_attachments, o->nb_attachments + 1);
2739 o->attachments[o->nb_attachments - 1] = arg;
2743 static void parse_meta_type(char *arg, char *type, int *index)
2753 if (*(++arg) == ':')
2754 *index = strtol(++arg, NULL, 0);
2757 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
2764 static int opt_map_metadata(OptionsContext *o, const char *opt, const char *arg)
2766 MetadataMap *m, *m1;
2769 o->meta_data_maps = grow_array(o->meta_data_maps, sizeof(*o->meta_data_maps),
2770 &o->nb_meta_data_maps, o->nb_meta_data_maps + 1);
2772 m = &o->meta_data_maps[o->nb_meta_data_maps - 1][1];
2773 m->file = strtol(arg, &p, 0);
2774 parse_meta_type(*p ? p + 1 : p, &m->type, &m->index);
2776 m1 = &o->meta_data_maps[o->nb_meta_data_maps - 1][0];
2777 if (p = strchr(opt, ':'))
2778 parse_meta_type(p + 1, &m1->type, &m1->index);
2782 if (m->type == 'g' || m1->type == 'g')
2783 o->metadata_global_manual = 1;
2784 if (m->type == 's' || m1->type == 's')
2785 o->metadata_streams_manual = 1;
2786 if (m->type == 'c' || m1->type == 'c')
2787 o->metadata_chapters_manual = 1;
2792 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2794 const char *codec_string = encoder ? "encoder" : "decoder";
2798 avcodec_find_encoder_by_name(name) :
2799 avcodec_find_decoder_by_name(name);
2801 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
2804 if(codec->type != type) {
2805 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
2811 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
2813 char *codec_name = NULL;
2815 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
2817 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
2818 st->codec->codec_id = codec->id;
2821 return avcodec_find_decoder(st->codec->codec_id);
2825 * Add all the streams from the given input file to the global
2826 * list of input streams.
2828 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
2830 int i, rfps, rfps_base;
2832 for (i = 0; i < ic->nb_streams; i++) {
2833 AVStream *st = ic->streams[i];
2834 AVCodecContext *dec = st->codec;
2837 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2838 ist = &input_streams[nb_input_streams - 1];
2840 ist->file_index = nb_input_files;
2842 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2844 ist->ts_scale = 1.0;
2845 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
2847 ist->dec = choose_decoder(o, ic, st);
2849 switch (dec->codec_type) {
2850 case AVMEDIA_TYPE_AUDIO:
2851 if (o->audio_disable)
2852 st->discard= AVDISCARD_ALL;
2854 case AVMEDIA_TYPE_VIDEO:
2855 rfps = ic->streams[i]->r_frame_rate.num;
2856 rfps_base = ic->streams[i]->r_frame_rate.den;
2858 dec->flags |= CODEC_FLAG_EMU_EDGE;
2859 dec->height >>= dec->lowres;
2860 dec->width >>= dec->lowres;
2863 if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
2865 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",
2866 i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
2867 (float)rfps / rfps_base, rfps, rfps_base);
2870 if (o->video_disable)
2871 st->discard= AVDISCARD_ALL;
2872 else if(video_discard)
2873 st->discard= video_discard;
2875 case AVMEDIA_TYPE_DATA:
2877 case AVMEDIA_TYPE_SUBTITLE:
2878 if (o->subtitle_disable)
2879 st->discard = AVDISCARD_ALL;
2881 case AVMEDIA_TYPE_ATTACHMENT:
2882 case AVMEDIA_TYPE_UNKNOWN:
2890 static void assert_file_overwrite(const char *filename)
2892 if (!file_overwrite &&
2893 (strchr(filename, ':') == NULL || filename[1] == ':' ||
2894 av_strstart(filename, "file:", NULL))) {
2895 if (avio_check(filename, 0) == 0) {
2897 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
2899 if (!read_yesno()) {
2900 fprintf(stderr, "Not overwriting - exiting\n");
2905 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
2912 static void dump_attachment(AVStream *st, const char *filename)
2915 AVIOContext *out = NULL;
2916 AVDictionaryEntry *e;
2918 if (!st->codec->extradata_size) {
2919 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
2920 nb_input_files - 1, st->index);
2923 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
2924 filename = e->value;
2926 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
2927 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
2931 assert_file_overwrite(filename);
2933 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
2934 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
2939 avio_write(out, st->codec->extradata, st->codec->extradata_size);
2944 static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
2946 AVFormatContext *ic;
2947 AVInputFormat *file_iformat = NULL;
2951 AVDictionary **opts;
2952 int orig_nb_streams; // number of streams before avformat_find_stream_info
2955 if (!(file_iformat = av_find_input_format(o->format))) {
2956 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
2961 if (!strcmp(filename, "-"))
2964 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2965 !strcmp(filename, "/dev/stdin");
2967 /* get default parameters from command line */
2968 ic = avformat_alloc_context();
2970 print_error(filename, AVERROR(ENOMEM));
2973 if (o->nb_audio_sample_rate) {
2974 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
2975 av_dict_set(&format_opts, "sample_rate", buf, 0);
2977 if (o->nb_audio_channels) {
2978 snprintf(buf, sizeof(buf), "%d", o->audio_channels[o->nb_audio_channels - 1].u.i);
2979 av_dict_set(&format_opts, "channels", buf, 0);
2981 if (o->nb_frame_rates) {
2982 av_dict_set(&format_opts, "framerate", o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
2984 if (o->nb_frame_sizes) {
2985 av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
2987 if (o->nb_frame_pix_fmts)
2988 av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
2990 ic->flags |= AVFMT_FLAG_NONBLOCK;
2991 ic->interrupt_callback = int_cb;
2993 /* open the input file with generic libav function */
2994 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
2996 print_error(filename, err);
2999 assert_avoptions(format_opts);
3001 /* apply forced codec ids */
3002 for (i = 0; i < ic->nb_streams; i++)
3003 choose_decoder(o, ic, ic->streams[i]);
3005 /* Set AVCodecContext options for avformat_find_stream_info */
3006 opts = setup_find_stream_info_opts(ic, codec_opts);
3007 orig_nb_streams = ic->nb_streams;
3009 /* If not enough info to get the stream parameters, we decode the
3010 first frames to get it. (used in mpeg case for example) */
3011 ret = avformat_find_stream_info(ic, opts);
3013 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
3014 av_close_input_file(ic);
3018 timestamp = o->start_time;
3019 /* add the stream start time */
3020 if (ic->start_time != AV_NOPTS_VALUE)
3021 timestamp += ic->start_time;
3023 /* if seeking requested, we execute it */
3024 if (o->start_time != 0) {
3025 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3027 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
3028 filename, (double)timestamp / AV_TIME_BASE);
3032 /* update the current parameters so that they match the one of the input stream */
3033 add_input_streams(o, ic);
3035 /* dump the file content */
3036 av_dump_format(ic, nb_input_files, filename, 0);
3038 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3039 input_files[nb_input_files - 1].ctx = ic;
3040 input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
3041 input_files[nb_input_files - 1].ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
3042 input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
3043 input_files[nb_input_files - 1].rate_emu = o->rate_emu;
3045 for (i = 0; i < o->nb_dump_attachment; i++) {
3048 for (j = 0; j < ic->nb_streams; j++) {
3049 AVStream *st = ic->streams[j];
3051 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
3052 dump_attachment(st, o->dump_attachment[i].u.str);
3056 for (i = 0; i < orig_nb_streams; i++)
3057 av_dict_free(&opts[i]);
3064 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3065 AVCodecContext *avctx)
3071 for (p = kf; *p; p++)
3074 ost->forced_kf_count = n;
3075 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3076 if (!ost->forced_kf_pts) {
3077 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3080 for (i = 0; i < n; i++) {
3081 p = i ? strchr(p, ',') + 1 : kf;
3082 t = parse_time_or_die("force_key_frames", p, 1);
3083 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3087 static uint8_t *get_line(AVIOContext *s)
3093 if (avio_open_dyn_buf(&line) < 0) {
3094 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
3098 while ((c = avio_r8(s)) && c != '\n')
3101 avio_close_dyn_buf(line, &buf);
3106 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
3109 char filename[1000];
3110 const char *base[3] = { getenv("AVCONV_DATADIR"),
3115 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret; i++) {
3119 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
3120 i != 1 ? "" : "/.avconv", codec_name, preset_name);
3121 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
3124 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
3125 i != 1 ? "" : "/.avconv", preset_name);
3126 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
3132 static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
3134 char *codec_name = NULL;
3136 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
3138 ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
3139 NULL, ost->st->codec->codec_type);
3140 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
3141 } else if (!strcmp(codec_name, "copy"))
3142 ost->stream_copy = 1;
3144 ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
3145 ost->st->codec->codec_id = ost->enc->id;
3149 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
3152 AVStream *st = avformat_new_stream(oc, NULL);
3153 int idx = oc->nb_streams - 1, ret = 0;
3154 char *bsf = NULL, *next, *codec_tag = NULL;
3155 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
3157 char *buf = NULL, *arg = NULL, *preset = NULL;
3158 AVIOContext *s = NULL;
3161 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
3165 if (oc->nb_streams - 1 < o->nb_streamid_map)
3166 st->id = o->streamid_map[oc->nb_streams - 1];
3168 output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3169 nb_output_streams + 1);
3170 ost = &output_streams[nb_output_streams - 1];
3171 ost->file_index = nb_output_files;
3174 st->codec->codec_type = type;
3175 choose_encoder(o, oc, ost);
3177 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3180 avcodec_get_context_defaults3(st->codec, ost->enc);
3181 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3183 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
3184 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
3187 if (!buf[0] || buf[0] == '#') {
3191 if (!(arg = strchr(buf, '='))) {
3192 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
3196 av_dict_set(&ost->opts, buf, arg, AV_DICT_DONT_OVERWRITE);
3198 } while (!s->eof_reached);
3202 av_log(NULL, AV_LOG_FATAL,
3203 "Preset %s specified for stream %d:%d, but could not be opened.\n",
3204 preset, ost->file_index, ost->index);
3208 ost->max_frames = INT64_MAX;
3209 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
3211 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
3213 if (next = strchr(bsf, ','))
3215 if (!(bsfc = av_bitstream_filter_init(bsf))) {
3216 av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
3220 bsfc_prev->next = bsfc;
3222 ost->bitstream_filters = bsfc;
3228 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
3230 uint32_t tag = strtol(codec_tag, &next, 0);
3232 tag = AV_RL32(codec_tag);
3233 st->codec->codec_tag = tag;
3236 MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
3237 if (qscale >= 0 || same_quant) {
3238 st->codec->flags |= CODEC_FLAG_QSCALE;
3239 st->codec->global_quality = FF_QP2LAMBDA * qscale;
3242 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
3243 st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
3245 av_opt_get_int(sws_opts, "sws_flags", 0, &ost->sws_flags);
3249 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
3252 const char *p = str;
3259 av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
3266 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
3270 AVCodecContext *video_enc;
3272 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
3274 video_enc = st->codec;
3276 if (!ost->stream_copy) {
3277 const char *p = NULL;
3278 char *forced_key_frames = NULL, *frame_rate = NULL, *frame_size = NULL;
3279 char *frame_aspect_ratio = NULL, *frame_pix_fmt = NULL;
3280 char *intra_matrix = NULL, *inter_matrix = NULL, *filters = NULL;
3283 MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
3284 if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
3285 av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
3289 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
3290 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
3291 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
3295 MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
3296 if (frame_aspect_ratio)
3297 ost->frame_aspect_ratio = parse_frame_aspect_ratio(frame_aspect_ratio);
3299 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
3300 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == PIX_FMT_NONE) {
3301 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
3304 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3306 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
3308 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
3309 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
3312 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
3314 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
3316 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
3317 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
3320 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
3323 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
3326 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3328 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
3331 video_enc->rc_override=
3332 av_realloc(video_enc->rc_override,
3333 sizeof(RcOverride)*(i+1));
3334 video_enc->rc_override[i].start_frame= start;
3335 video_enc->rc_override[i].end_frame = end;
3337 video_enc->rc_override[i].qscale= q;
3338 video_enc->rc_override[i].quality_factor= 1.0;
3341 video_enc->rc_override[i].qscale= 0;
3342 video_enc->rc_override[i].quality_factor= -q/100.0;
3347 video_enc->rc_override_count=i;
3348 if (!video_enc->rc_initial_buffer_occupancy)
3349 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3350 video_enc->intra_dc_precision= intra_dc_precision - 8;
3355 video_enc->flags |= CODEC_FLAG_PASS1;
3357 video_enc->flags |= CODEC_FLAG_PASS2;
3361 MATCH_PER_STREAM_OPT(forced_key_frames, str, forced_key_frames, oc, st);
3362 if (forced_key_frames)
3363 parse_forced_key_frames(forced_key_frames, ost, video_enc);
3365 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
3367 ost->top_field_first = -1;
3368 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
3370 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
3373 MATCH_PER_STREAM_OPT(filters, str, filters, oc, st);
3375 ost->avfilter = av_strdup(filters);
3382 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc)
3386 AVCodecContext *audio_enc;
3388 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO);
3391 audio_enc = st->codec;
3392 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3394 if (!ost->stream_copy) {
3395 char *sample_fmt = NULL;
3397 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
3399 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
3401 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
3402 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
3406 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
3412 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc)
3416 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA);
3417 if (!ost->stream_copy) {
3418 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
3425 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc)
3427 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT);
3428 ost->stream_copy = 1;
3432 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc)
3436 AVCodecContext *subtitle_enc;
3438 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE);
3440 subtitle_enc = st->codec;
3442 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3447 /* arg format is "output-stream-index:streamid-value". */
3448 static int opt_streamid(OptionsContext *o, const char *opt, const char *arg)
3454 av_strlcpy(idx_str, arg, sizeof(idx_str));
3455 p = strchr(idx_str, ':');
3457 av_log(NULL, AV_LOG_FATAL,
3458 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3463 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
3464 o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
3465 o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3469 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
3471 AVFormatContext *is = ifile->ctx;
3472 AVFormatContext *os = ofile->ctx;
3475 for (i = 0; i < is->nb_chapters; i++) {
3476 AVChapter *in_ch = is->chapters[i], *out_ch;
3477 int64_t ts_off = av_rescale_q(ofile->start_time - ifile->ts_offset,
3478 AV_TIME_BASE_Q, in_ch->time_base);
3479 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
3480 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
3483 if (in_ch->end < ts_off)
3485 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
3488 out_ch = av_mallocz(sizeof(AVChapter));
3490 return AVERROR(ENOMEM);
3492 out_ch->id = in_ch->id;
3493 out_ch->time_base = in_ch->time_base;
3494 out_ch->start = FFMAX(0, in_ch->start - ts_off);
3495 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
3498 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
3501 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
3503 return AVERROR(ENOMEM);
3504 os->chapters[os->nb_chapters - 1] = out_ch;
3509 static int read_avserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
3512 AVFormatContext *ic = avformat_alloc_context();
3514 ic->interrupt_callback = int_cb;
3515 err = avformat_open_input(&ic, filename, NULL, NULL);
3518 /* copy stream format */
3519 for(i=0;i<ic->nb_streams;i++) {
3524 codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
3525 ost = new_output_stream(o, s, codec->type);
3528 // FIXME: a more elegant solution is needed
3529 memcpy(st, ic->streams[i], sizeof(AVStream));
3531 avcodec_copy_context(st->codec, ic->streams[i]->codec);
3533 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !ost->stream_copy)
3534 choose_sample_fmt(st, codec);
3535 else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !ost->stream_copy)
3536 choose_pixel_fmt(st, codec);
3539 av_close_input_file(ic);
3543 static void opt_output_file(void *optctx, const char *filename)
3545 OptionsContext *o = optctx;
3546 AVFormatContext *oc;
3548 AVOutputFormat *file_oformat;
3552 if (!strcmp(filename, "-"))
3555 oc = avformat_alloc_context();
3557 print_error(filename, AVERROR(ENOMEM));
3562 file_oformat = av_guess_format(o->format, NULL, NULL);
3563 if (!file_oformat) {
3564 av_log(NULL, AV_LOG_FATAL, "Requested output format '%s' is not a suitable output format\n", o->format);
3568 file_oformat = av_guess_format(NULL, filename, NULL);
3569 if (!file_oformat) {
3570 av_log(NULL, AV_LOG_FATAL, "Unable to find a suitable output format for '%s'\n",
3576 oc->oformat = file_oformat;
3577 oc->interrupt_callback = int_cb;
3578 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3580 if (!strcmp(file_oformat->name, "ffm") &&
3581 av_strstart(filename, "http:", NULL)) {
3582 /* special case for files sent to avserver: we get the stream
3583 parameters from avserver */
3584 int err = read_avserver_streams(o, oc, filename);
3586 print_error(filename, err);
3589 } else if (!o->nb_stream_maps) {
3590 /* pick the "best" stream of each type */
3591 #define NEW_STREAM(type, index)\
3593 ost = new_ ## type ## _stream(o, oc);\
3594 ost->source_index = index;\
3595 ost->sync_ist = &input_streams[index];\
3596 input_streams[index].discard = 0;\
3599 /* video: highest resolution */
3600 if (!o->video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
3601 int area = 0, idx = -1;
3602 for (i = 0; i < nb_input_streams; i++) {
3603 ist = &input_streams[i];
3604 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3605 ist->st->codec->width * ist->st->codec->height > area) {
3606 area = ist->st->codec->width * ist->st->codec->height;
3610 NEW_STREAM(video, idx);
3613 /* audio: most channels */
3614 if (!o->audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
3615 int channels = 0, idx = -1;
3616 for (i = 0; i < nb_input_streams; i++) {
3617 ist = &input_streams[i];
3618 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
3619 ist->st->codec->channels > channels) {
3620 channels = ist->st->codec->channels;
3624 NEW_STREAM(audio, idx);
3627 /* subtitles: pick first */
3628 if (!o->subtitle_disable && oc->oformat->subtitle_codec != CODEC_ID_NONE) {
3629 for (i = 0; i < nb_input_streams; i++)
3630 if (input_streams[i].st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3631 NEW_STREAM(subtitle, i);
3635 /* do something with data? */
3637 for (i = 0; i < o->nb_stream_maps; i++) {
3638 StreamMap *map = &o->stream_maps[i];
3643 ist = &input_streams[input_files[map->file_index].ist_index + map->stream_index];
3644 switch (ist->st->codec->codec_type) {
3645 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc); break;
3646 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc); break;
3647 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(o, oc); break;
3648 case AVMEDIA_TYPE_DATA: ost = new_data_stream(o, oc); break;
3649 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc); break;
3651 av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
3652 map->file_index, map->stream_index);
3656 ost->source_index = input_files[map->file_index].ist_index + map->stream_index;
3657 ost->sync_ist = &input_streams[input_files[map->sync_file_index].ist_index +
3658 map->sync_stream_index];
3663 /* handle attached files */
3664 for (i = 0; i < o->nb_attachments; i++) {
3666 uint8_t *attachment;
3670 if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
3671 av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
3675 if ((len = avio_size(pb)) <= 0) {
3676 av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
3680 if (!(attachment = av_malloc(len))) {
3681 av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
3685 avio_read(pb, attachment, len);
3687 ost = new_attachment_stream(o, oc);
3688 ost->stream_copy = 0;
3689 ost->source_index = -1;
3690 ost->attachment_filename = o->attachments[i];
3691 ost->st->codec->extradata = attachment;
3692 ost->st->codec->extradata_size = len;
3694 p = strrchr(o->attachments[i], '/');
3695 av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
3699 output_files = grow_array(output_files, sizeof(*output_files), &nb_output_files, nb_output_files + 1);
3700 output_files[nb_output_files - 1].ctx = oc;
3701 output_files[nb_output_files - 1].ost_index = n