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;
116 static int copy_tb = 1;
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 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
142 typedef struct InputStream {
145 int discard; /* true if stream data should be discarded */
146 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
148 AVFrame *decoded_frame;
149 AVFrame *filtered_frame;
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 *metadata_map;
337 SpecifierOpt *presets;
339 SpecifierOpt *copy_initial_nonkeyframes;
340 int nb_copy_initial_nonkeyframes;
342 SpecifierOpt *filters;
347 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
350 for (i = 0; i < o->nb_ ## name; i++) {\
351 char *spec = o->name[i].specifier;\
352 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
353 outvar = o->name[i].u.type;\
359 static void reset_options(OptionsContext *o)
361 const OptionDef *po = options;
363 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
365 void *dst = (uint8_t*)o + po->u.off;
367 if (po->flags & OPT_SPEC) {
368 SpecifierOpt **so = dst;
369 int i, *count = (int*)(so + 1);
370 for (i = 0; i < *count; i++) {
371 av_freep(&(*so)[i].specifier);
372 if (po->flags & OPT_STRING)
373 av_freep(&(*so)[i].u.str);
377 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
382 av_freep(&o->stream_maps);
383 av_freep(&o->meta_data_maps);
384 av_freep(&o->streamid_map);
386 memset(o, 0, sizeof(*o));
388 o->mux_max_delay = 0.7;
389 o->recording_time = INT64_MAX;
390 o->limit_filesize = UINT64_MAX;
391 o->chapters_input_file = INT_MAX;
399 static int configure_video_filters(InputStream *ist, OutputStream *ost)
401 AVFilterContext *last_filter, *filter;
402 /** filter graph containing all filters including input & output */
403 AVCodecContext *codec = ost->st->codec;
404 AVCodecContext *icodec = ist->st->codec;
405 FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
406 AVRational sample_aspect_ratio;
410 ost->graph = avfilter_graph_alloc();
412 if (ist->st->sample_aspect_ratio.num){
413 sample_aspect_ratio = ist->st->sample_aspect_ratio;
415 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
417 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
418 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
419 sample_aspect_ratio.num, sample_aspect_ratio.den);
421 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
422 "src", args, NULL, ost->graph);
425 ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
426 "out", NULL, &ffsink_ctx, ost->graph);
429 last_filter = ost->input_video_filter;
431 if (codec->width != icodec->width || codec->height != icodec->height) {
432 snprintf(args, 255, "%d:%d:flags=0x%X",
435 (unsigned)ost->sws_flags);
436 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
437 NULL, args, NULL, ost->graph)) < 0)
439 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
441 last_filter = filter;
444 snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
445 ost->graph->scale_sws_opts = av_strdup(args);
448 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
449 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
451 outputs->name = av_strdup("in");
452 outputs->filter_ctx = last_filter;
453 outputs->pad_idx = 0;
454 outputs->next = NULL;
456 inputs->name = av_strdup("out");
457 inputs->filter_ctx = ost->output_video_filter;
461 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
463 av_freep(&ost->avfilter);
465 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
469 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
472 codec->width = ost->output_video_filter->inputs[0]->w;
473 codec->height = ost->output_video_filter->inputs[0]->h;
474 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
475 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
476 av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
477 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
481 #endif /* CONFIG_AVFILTER */
483 static void term_exit(void)
485 av_log(NULL, AV_LOG_QUIET, "");
488 static volatile int received_sigterm = 0;
489 static volatile int received_nb_signals = 0;
492 sigterm_handler(int sig)
494 received_sigterm = sig;
495 received_nb_signals++;
499 static void term_init(void)
501 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
502 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
504 signal(SIGXCPU, sigterm_handler);
508 static int decode_interrupt_cb(void *ctx)
510 return received_nb_signals > 1;
513 static const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
515 void exit_program(int ret)
520 for(i=0;i<nb_output_files;i++) {
521 AVFormatContext *s = output_files[i].ctx;
522 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
524 avformat_free_context(s);
525 av_dict_free(&output_files[i].opts);
527 for(i=0;i<nb_input_files;i++) {
528 avformat_close_input(&input_files[i].ctx);
530 for (i = 0; i < nb_input_streams; i++) {
531 av_freep(&input_streams[i].decoded_frame);
532 av_freep(&input_streams[i].filtered_frame);
533 av_dict_free(&input_streams[i].opts);
538 av_free(vstats_filename);
540 av_freep(&input_streams);
541 av_freep(&input_files);
542 av_freep(&output_streams);
543 av_freep(&output_files);
548 allocated_audio_buf_size= allocated_audio_out_size= 0;
553 avformat_network_deinit();
555 if (received_sigterm) {
556 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
557 (int) received_sigterm);
564 static void assert_avoptions(AVDictionary *m)
566 AVDictionaryEntry *t;
567 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
568 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
573 static void assert_codec_experimental(AVCodecContext *c, int encoder)
575 const char *codec_string = encoder ? "encoder" : "decoder";
577 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
578 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
579 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
580 "results.\nAdd '-strict experimental' if you want to use it.\n",
581 codec_string, c->codec->name);
582 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
583 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
584 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
585 codec_string, codec->name);
590 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
592 if(codec && codec->sample_fmts){
593 const enum AVSampleFormat *p= codec->sample_fmts;
595 if(*p == st->codec->sample_fmt)
599 av_log(NULL, AV_LOG_WARNING,
600 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
601 av_get_sample_fmt_name(st->codec->sample_fmt),
603 av_get_sample_fmt_name(codec->sample_fmts[0]));
604 st->codec->sample_fmt = codec->sample_fmts[0];
610 * Update the requested input sample format based on the output sample format.
611 * This is currently only used to request float output from decoders which
612 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
613 * Ideally this will be removed in the future when decoders do not do format
614 * conversion and only output in their native format.
616 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
619 /* if sample formats match or a decoder sample format has already been
620 requested, just return */
621 if (enc->sample_fmt == dec->sample_fmt ||
622 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
625 /* if decoder supports more than one output format */
626 if (dec_codec && dec_codec->sample_fmts &&
627 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
628 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
629 const enum AVSampleFormat *p;
630 int min_dec = -1, min_inc = -1;
632 /* find a matching sample format in the encoder */
633 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
634 if (*p == enc->sample_fmt) {
635 dec->request_sample_fmt = *p;
637 } else if (*p > enc->sample_fmt) {
638 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
640 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
643 /* if none match, provide the one that matches quality closest */
644 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
645 enc->sample_fmt - min_dec;
649 static void choose_sample_rate(AVStream *st, AVCodec *codec)
651 if(codec && codec->supported_samplerates){
652 const int *p= codec->supported_samplerates;
654 int best_dist=INT_MAX;
656 int dist= abs(st->codec->sample_rate - *p);
657 if(dist < best_dist){
663 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
665 st->codec->sample_rate= best;
669 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
671 if(codec && codec->pix_fmts){
672 const enum PixelFormat *p= codec->pix_fmts;
673 if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
674 if(st->codec->codec_id==CODEC_ID_MJPEG){
675 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
676 }else if(st->codec->codec_id==CODEC_ID_LJPEG){
677 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};
680 for (; *p != PIX_FMT_NONE; p++) {
681 if(*p == st->codec->pix_fmt)
684 if (*p == PIX_FMT_NONE) {
685 if(st->codec->pix_fmt != PIX_FMT_NONE)
686 av_log(NULL, AV_LOG_WARNING,
687 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
688 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
690 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
691 st->codec->pix_fmt = codec->pix_fmts[0];
697 get_sync_ipts(const OutputStream *ost)
699 const InputStream *ist = ost->sync_ist;
700 OutputFile *of = &output_files[ost->file_index];
701 return (double)(ist->pts - of->start_time)/AV_TIME_BASE;
704 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
708 AVPacket new_pkt= *pkt;
709 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
710 &new_pkt.data, &new_pkt.size,
711 pkt->data, pkt->size,
712 pkt->flags & AV_PKT_FLAG_KEY);
715 new_pkt.destruct= av_destruct_packet;
717 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
718 bsfc->filter->name, pkt->stream_index,
719 avctx->codec ? avctx->codec->name : "copy");
729 ret= av_interleaved_write_frame(s, pkt);
731 print_error("av_interleaved_write_frame()", ret);
736 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
738 int fill_char = 0x00;
739 if (sample_fmt == AV_SAMPLE_FMT_U8)
741 memset(buf, fill_char, size);
744 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
745 InputStream *ist, AVFrame *decoded_frame)
748 int64_t audio_out_size, audio_buf_size;
750 int size_out, frame_bytes, ret, resample_changed;
751 AVCodecContext *enc= ost->st->codec;
752 AVCodecContext *dec= ist->st->codec;
753 int osize = av_get_bytes_per_sample(enc->sample_fmt);
754 int isize = av_get_bytes_per_sample(dec->sample_fmt);
755 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
756 uint8_t *buf = decoded_frame->data[0];
757 int size = decoded_frame->nb_samples * dec->channels * isize;
758 int64_t allocated_for_size = size;
761 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
762 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
763 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
764 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
765 audio_buf_size*= osize*enc->channels;
767 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
768 if(coded_bps > 8*osize)
769 audio_out_size= audio_out_size * coded_bps / (8*osize);
770 audio_out_size += FF_MIN_BUFFER_SIZE;
772 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
773 av_log(NULL, AV_LOG_FATAL, "Buffer sizes too large\n");
777 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
778 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
779 if (!audio_buf || !audio_out){
780 av_log(NULL, AV_LOG_FATAL, "Out of memory in do_audio_out\n");
784 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
785 ost->audio_resample = 1;
787 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
788 ost->resample_channels != dec->channels ||
789 ost->resample_sample_rate != dec->sample_rate;
791 if ((ost->audio_resample && !ost->resample) || resample_changed) {
792 if (resample_changed) {
793 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",
794 ist->file_index, ist->st->index,
795 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
796 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
797 ost->resample_sample_fmt = dec->sample_fmt;
798 ost->resample_channels = dec->channels;
799 ost->resample_sample_rate = dec->sample_rate;
801 audio_resample_close(ost->resample);
803 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
804 if (audio_sync_method <= 1 &&
805 ost->resample_sample_fmt == enc->sample_fmt &&
806 ost->resample_channels == enc->channels &&
807 ost->resample_sample_rate == enc->sample_rate) {
808 ost->resample = NULL;
809 ost->audio_resample = 0;
810 } else if (ost->audio_resample) {
811 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
812 av_log(NULL, AV_LOG_WARNING, "Using s16 intermediate sample format for resampling\n");
813 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
814 enc->sample_rate, dec->sample_rate,
815 enc->sample_fmt, dec->sample_fmt,
817 if (!ost->resample) {
818 av_log(NULL, AV_LOG_FATAL, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
819 dec->channels, dec->sample_rate,
820 enc->channels, enc->sample_rate);
826 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
827 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
828 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
829 if (ost->reformat_ctx)
830 av_audio_convert_free(ost->reformat_ctx);
831 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
832 dec->sample_fmt, 1, NULL, 0);
833 if (!ost->reformat_ctx) {
834 av_log(NULL, AV_LOG_FATAL, "Cannot convert %s sample format to %s sample format\n",
835 av_get_sample_fmt_name(dec->sample_fmt),
836 av_get_sample_fmt_name(enc->sample_fmt));
839 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
842 if(audio_sync_method){
843 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
844 - av_fifo_size(ost->fifo)/(enc->channels * osize);
845 int idelta = delta * dec->sample_rate / enc->sample_rate;
846 int byte_delta = idelta * isize * dec->channels;
848 //FIXME resample delay
849 if(fabs(delta) > 50){
850 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
852 byte_delta= FFMAX(byte_delta, -size);
855 av_log(NULL, AV_LOG_VERBOSE, "discarding %d audio samples\n",
856 -byte_delta / (isize * dec->channels));
861 static uint8_t *input_tmp= NULL;
862 input_tmp= av_realloc(input_tmp, byte_delta + size);
864 if(byte_delta > allocated_for_size - size){
865 allocated_for_size= byte_delta + (int64_t)size;
870 generate_silence(input_tmp, dec->sample_fmt, byte_delta);
871 memcpy(input_tmp + byte_delta, buf, size);
874 av_log(NULL, AV_LOG_VERBOSE, "adding %d audio samples of silence\n", idelta);
876 }else if(audio_sync_method>1){
877 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
878 av_assert0(ost->audio_resample);
879 av_log(NULL, AV_LOG_VERBOSE, "compensating audio timestamp drift:%f compensation:%d in:%d\n",
880 delta, comp, enc->sample_rate);
881 // 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));
882 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
886 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
887 - av_fifo_size(ost->fifo)/(enc->channels * osize); //FIXME wrong
889 if (ost->audio_resample) {
891 size_out = audio_resample(ost->resample,
892 (short *)buftmp, (short *)buf,
893 size / (dec->channels * isize));
894 size_out = size_out * enc->channels * osize;
900 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
901 const void *ibuf[6]= {buftmp};
902 void *obuf[6]= {audio_buf};
903 int istride[6]= {isize};
904 int ostride[6]= {osize};
905 int len= size_out/istride[0];
906 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
907 printf("av_audio_convert() failed\n");
913 size_out = len*osize;
916 /* now encode as many frames as possible */
917 if (enc->frame_size > 1) {
918 /* output resampled raw samples */
919 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
920 av_log(NULL, AV_LOG_FATAL, "av_fifo_realloc2() failed\n");
923 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
925 frame_bytes = enc->frame_size * osize * enc->channels;
927 while (av_fifo_size(ost->fifo) >= frame_bytes) {
929 av_init_packet(&pkt);
931 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
933 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
935 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
938 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
942 pkt.stream_index= ost->index;
945 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
946 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
947 pkt.flags |= AV_PKT_FLAG_KEY;
948 write_frame(s, &pkt, enc, ost->bitstream_filters);
950 ost->sync_opts += enc->frame_size;
954 av_init_packet(&pkt);
956 ost->sync_opts += size_out / (osize * enc->channels);
958 /* output a pcm frame */
959 /* determine the size of the coded buffer */
962 size_out = size_out*coded_bps/8;
964 if(size_out > audio_out_size){
965 av_log(NULL, AV_LOG_FATAL, "Internal error, buffer size too small\n");
969 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
970 ret = avcodec_encode_audio(enc, audio_out, size_out,
973 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
977 pkt.stream_index= ost->index;
980 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
981 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
982 pkt.flags |= AV_PKT_FLAG_KEY;
983 write_frame(s, &pkt, enc, ost->bitstream_filters);
987 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
991 AVPicture picture_tmp;
994 dec = ist->st->codec;
996 /* deinterlace : must be done before any resize */
997 if (do_deinterlace) {
1000 /* create temporary picture */
1001 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1002 buf = av_malloc(size);
1006 picture2 = &picture_tmp;
1007 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1009 if(avpicture_deinterlace(picture2, picture,
1010 dec->pix_fmt, dec->width, dec->height) < 0) {
1011 /* if error, do not deinterlace */
1012 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
1021 if (picture != picture2)
1022 *picture = *picture2;
1026 static void do_subtitle_out(AVFormatContext *s,
1032 static uint8_t *subtitle_out = NULL;
1033 int subtitle_out_max_size = 1024 * 1024;
1034 int subtitle_out_size, nb, i;
1035 AVCodecContext *enc;
1038 if (pts == AV_NOPTS_VALUE) {
1039 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
1045 enc = ost->st->codec;
1047 if (!subtitle_out) {
1048 subtitle_out = av_malloc(subtitle_out_max_size);
1051 /* Note: DVB subtitle need one packet to draw them and one other
1052 packet to clear them */
1053 /* XXX: signal it in the codec context ? */
1054 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1059 for(i = 0; i < nb; i++) {
1060 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1061 // start_display_time is required to be 0
1062 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1063 sub->end_display_time -= sub->start_display_time;
1064 sub->start_display_time = 0;
1065 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1066 subtitle_out_max_size, sub);
1067 if (subtitle_out_size < 0) {
1068 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
1072 av_init_packet(&pkt);
1073 pkt.stream_index = ost->index;
1074 pkt.data = subtitle_out;
1075 pkt.size = subtitle_out_size;
1076 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1077 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1078 /* XXX: the pts correction is handled here. Maybe handling
1079 it in the codec would be better */
1081 pkt.pts += 90 * sub->start_display_time;
1083 pkt.pts += 90 * sub->end_display_time;
1085 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1089 static int bit_buffer_size= 1024*256;
1090 static uint8_t *bit_buffer= NULL;
1092 static void do_video_resample(OutputStream *ost,
1094 AVFrame *in_picture,
1095 AVFrame **out_picture)
1097 int resample_changed = 0;
1098 AVCodecContext *dec = ist->st->codec;
1099 *out_picture = in_picture;
1101 resample_changed = ost->resample_width != dec->width ||
1102 ost->resample_height != dec->height ||
1103 ost->resample_pix_fmt != dec->pix_fmt;
1105 if (resample_changed) {
1106 av_log(NULL, AV_LOG_INFO,
1107 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1108 ist->file_index, ist->st->index,
1109 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1110 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt));
1111 if(!ost->video_resample)
1112 ost->video_resample = 1;
1115 #if !CONFIG_AVFILTER
1116 if (ost->video_resample) {
1117 *out_picture = &ost->pict_tmp;
1118 if (resample_changed) {
1119 /* initialize a new scaler context */
1120 sws_freeContext(ost->img_resample_ctx);
1121 ost->img_resample_ctx = sws_getContext(
1122 ist->st->codec->width,
1123 ist->st->codec->height,
1124 ist->st->codec->pix_fmt,
1125 ost->st->codec->width,
1126 ost->st->codec->height,
1127 ost->st->codec->pix_fmt,
1128 ost->sws_flags, NULL, NULL, NULL);
1129 if (ost->img_resample_ctx == NULL) {
1130 av_log(NULL, AV_LOG_FATAL, "Cannot get resampling context\n");
1134 sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1135 0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1138 if (resample_changed) {
1139 avfilter_graph_free(&ost->graph);
1140 if (configure_video_filters(ist, ost)) {
1141 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1146 if (resample_changed) {
1147 ost->resample_width = dec->width;
1148 ost->resample_height = dec->height;
1149 ost->resample_pix_fmt = dec->pix_fmt;
1154 static void do_video_out(AVFormatContext *s,
1157 AVFrame *in_picture,
1158 int *frame_size, float quality)
1160 int nb_frames, i, ret, format_video_sync;
1161 AVFrame *final_picture;
1162 AVCodecContext *enc;
1165 enc = ost->st->codec;
1167 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1169 /* by default, we output a single frame */
1174 format_video_sync = video_sync_method;
1175 if (format_video_sync < 0)
1176 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? 0 :
1177 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1179 if (format_video_sync) {
1180 double vdelta = sync_ipts - ost->sync_opts;
1181 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1184 else if (format_video_sync == 2) {
1187 }else if(vdelta>0.6)
1188 ost->sync_opts= lrintf(sync_ipts);
1189 }else if (vdelta > 1.1)
1190 nb_frames = lrintf(vdelta);
1191 //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);
1192 if (nb_frames == 0){
1194 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
1195 }else if (nb_frames > 1) {
1196 nb_frames_dup += nb_frames - 1;
1197 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames-1);
1200 ost->sync_opts= lrintf(sync_ipts);
1202 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
1206 do_video_resample(ost, ist, in_picture, &final_picture);
1208 /* duplicates frame if needed */
1209 for(i=0;i<nb_frames;i++) {
1211 av_init_packet(&pkt);
1212 pkt.stream_index= ost->index;
1214 if (s->oformat->flags & AVFMT_RAWPICTURE &&
1215 enc->codec->id == CODEC_ID_RAWVIDEO) {
1216 /* raw pictures are written as AVPicture structure to
1217 avoid any copies. We support temporarily the older
1219 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1220 enc->coded_frame->top_field_first = in_picture->top_field_first;
1221 pkt.data= (uint8_t *)final_picture;
1222 pkt.size= sizeof(AVPicture);
1223 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1224 pkt.flags |= AV_PKT_FLAG_KEY;
1226 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1228 AVFrame big_picture;
1230 big_picture= *final_picture;
1231 /* better than nothing: use input picture interlaced
1233 big_picture.interlaced_frame = in_picture->interlaced_frame;
1234 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1235 if (ost->top_field_first == -1)
1236 big_picture.top_field_first = in_picture->top_field_first;
1238 big_picture.top_field_first = !!ost->top_field_first;
1241 /* handles same_quant here. This is not correct because it may
1242 not be a global option */
1243 big_picture.quality = quality;
1244 if (!enc->me_threshold)
1245 big_picture.pict_type = 0;
1246 // big_picture.pts = AV_NOPTS_VALUE;
1247 big_picture.pts= ost->sync_opts;
1248 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1249 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1250 if (ost->forced_kf_index < ost->forced_kf_count &&
1251 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1252 big_picture.pict_type = AV_PICTURE_TYPE_I;
1253 ost->forced_kf_index++;
1255 ret = avcodec_encode_video(enc,
1256 bit_buffer, bit_buffer_size,
1259 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1264 pkt.data= bit_buffer;
1266 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1267 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1268 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1269 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1270 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1272 if(enc->coded_frame->key_frame)
1273 pkt.flags |= AV_PKT_FLAG_KEY;
1274 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1277 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1278 // enc->frame_number-1, ret, enc->pict_type);
1279 /* if two pass, output log */
1280 if (ost->logfile && enc->stats_out) {
1281 fprintf(ost->logfile, "%s", enc->stats_out);
1286 ost->frame_number++;
1290 static double psnr(double d){
1291 return -10.0*log(d)/log(10.0);
1294 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1297 AVCodecContext *enc;
1299 double ti1, bitrate, avg_bitrate;
1301 /* this is executed just the first time do_video_stats is called */
1303 vstats_file = fopen(vstats_filename, "w");
1310 enc = ost->st->codec;
1311 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1312 frame_number = ost->frame_number;
1313 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1314 if (enc->flags&CODEC_FLAG_PSNR)
1315 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1317 fprintf(vstats_file,"f_size= %6d ", frame_size);
1318 /* compute pts value */
1319 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1323 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1324 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1325 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1326 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1327 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1331 static void print_report(OutputFile *output_files,
1332 OutputStream *ost_table, int nb_ostreams,
1333 int is_last_report, int64_t timer_start)
1337 AVFormatContext *oc;
1339 AVCodecContext *enc;
1340 int frame_number, vid, i;
1341 double bitrate, ti1, pts;
1342 static int64_t last_time = -1;
1343 static int qp_histogram[52];
1345 if (!print_stats && !is_last_report)
1348 if (!is_last_report) {
1350 /* display the report every 0.5 seconds */
1351 cur_time = av_gettime();
1352 if (last_time == -1) {
1353 last_time = cur_time;
1356 if ((cur_time - last_time) < 500000)
1358 last_time = cur_time;
1362 oc = output_files[0].ctx;
1364 total_size = avio_size(oc->pb);
1365 if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1366 total_size= avio_tell(oc->pb);
1371 for(i=0;i<nb_ostreams;i++) {
1373 ost = &ost_table[i];
1374 enc = ost->st->codec;
1375 if (!ost->stream_copy && enc->coded_frame)
1376 q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1377 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1378 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1380 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1381 float t = (av_gettime()-timer_start) / 1000000.0;
1383 frame_number = ost->frame_number;
1384 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1385 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1387 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1391 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1394 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1396 if (enc->flags&CODEC_FLAG_PSNR){
1398 double error, error_sum=0;
1399 double scale, scale_sum=0;
1400 char type[3]= {'Y','U','V'};
1401 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1404 error= enc->error[j];
1405 scale= enc->width*enc->height*255.0*255.0*frame_number;
1407 error= enc->coded_frame->error[j];
1408 scale= enc->width*enc->height*255.0*255.0;
1413 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1415 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1419 /* compute min output value */
1420 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1421 if ((pts < ti1) && (pts > 0))
1427 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1429 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1430 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1431 (double)total_size / 1024, ti1, bitrate);
1433 if (nb_frames_dup || nb_frames_drop)
1434 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1435 nb_frames_dup, nb_frames_drop);
1437 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1441 if (is_last_report) {
1442 int64_t raw= audio_size + video_size + extra_size;
1443 av_log(NULL, AV_LOG_INFO, "\n");
1444 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1448 100.0*(total_size - raw)/raw
1453 static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
1457 for (i = 0; i < nb_ostreams; i++) {
1458 OutputStream *ost = &ost_table[i];
1459 AVCodecContext *enc = ost->st->codec;
1460 AVFormatContext *os = output_files[ost->file_index].ctx;
1462 if (!ost->encoding_needed)
1465 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1467 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == CODEC_ID_RAWVIDEO)
1473 av_init_packet(&pkt);
1474 pkt.stream_index= ost->index;
1476 switch (ost->st->codec->codec_type) {
1477 case AVMEDIA_TYPE_AUDIO:
1478 fifo_bytes = av_fifo_size(ost->fifo);
1480 /* encode any samples remaining in fifo */
1481 if (fifo_bytes > 0) {
1482 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1483 int fs_tmp = enc->frame_size;
1485 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1486 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1487 enc->frame_size = fifo_bytes / (osize * enc->channels);
1489 int frame_bytes = enc->frame_size*osize*enc->channels;
1490 if (allocated_audio_buf_size < frame_bytes)
1492 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1495 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1496 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1497 ost->st->time_base.num, enc->sample_rate);
1498 enc->frame_size = fs_tmp;
1501 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1504 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
1508 pkt.flags |= AV_PKT_FLAG_KEY;
1510 case AVMEDIA_TYPE_VIDEO:
1511 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1513 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1517 if(enc->coded_frame && enc->coded_frame->key_frame)
1518 pkt.flags |= AV_PKT_FLAG_KEY;
1519 if (ost->logfile && enc->stats_out) {
1520 fprintf(ost->logfile, "%s", enc->stats_out);
1529 pkt.data = bit_buffer;
1531 if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1532 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1533 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1539 * Check whether a packet from ist should be written into ost at this time
1541 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1543 OutputFile *of = &output_files[ost->file_index];
1544 int ist_index = ist - input_streams;
1546 if (ost->source_index != ist_index)
1549 if (of->start_time && ist->pts < of->start_time)
1552 if (of->recording_time != INT64_MAX &&
1553 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1554 (AVRational){1, 1000000}) >= 0) {
1555 ost->is_past_recording_time = 1;
1562 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1564 OutputFile *of = &output_files[ost->file_index];
1565 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1568 av_init_packet(&opkt);
1570 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1571 !ost->copy_initial_nonkeyframes)
1574 /* force the input stream PTS */
1575 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1576 audio_size += pkt->size;
1577 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1578 video_size += pkt->size;
1582 opkt.stream_index = ost->index;
1583 if (pkt->pts != AV_NOPTS_VALUE)
1584 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1586 opkt.pts = AV_NOPTS_VALUE;
1588 if (pkt->dts == AV_NOPTS_VALUE)
1589 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1591 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1592 opkt.dts -= ost_tb_start_time;
1594 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1595 opkt.flags = pkt->flags;
1597 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1598 if( ost->st->codec->codec_id != CODEC_ID_H264
1599 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1600 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1602 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1603 opkt.destruct = av_destruct_packet;
1605 opkt.data = pkt->data;
1606 opkt.size = pkt->size;
1609 write_frame(of->ctx, &opkt, ost->st->codec, ost->bitstream_filters);
1610 ost->st->codec->frame_number++;
1611 ost->frame_number++;
1612 av_free_packet(&opkt);
1615 static void rate_emu_sleep(InputStream *ist)
1617 if (input_files[ist->file_index].rate_emu) {
1618 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1619 int64_t now = av_gettime() - ist->start;
1625 static int transcode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1627 AVFrame *decoded_frame;
1628 AVCodecContext *avctx = ist->st->codec;
1629 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1632 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1633 return AVERROR(ENOMEM);
1635 avcodec_get_frame_defaults(ist->decoded_frame);
1636 decoded_frame = ist->decoded_frame;
1638 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1644 /* no audio frame */
1648 /* if the decoder provides a pts, use it instead of the last packet pts.
1649 the decoder could be delaying output by a packet or more. */
1650 if (decoded_frame->pts != AV_NOPTS_VALUE)
1651 ist->next_pts = decoded_frame->pts;
1653 /* increment next_pts to use for the case where the input stream does not
1654 have timestamps or there are multiple frames in the packet */
1655 ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1658 // preprocess audio (volume)
1659 if (audio_volume != 256) {
1660 int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps;
1661 void *samples = decoded_frame->data[0];
1662 switch (avctx->sample_fmt) {
1663 case AV_SAMPLE_FMT_U8:
1665 uint8_t *volp = samples;
1666 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1667 int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
1668 *volp++ = av_clip_uint8(v);
1672 case AV_SAMPLE_FMT_S16:
1674 int16_t *volp = samples;
1675 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1676 int v = ((*volp) * audio_volume + 128) >> 8;
1677 *volp++ = av_clip_int16(v);
1681 case AV_SAMPLE_FMT_S32:
1683 int32_t *volp = samples;
1684 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1685 int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
1686 *volp++ = av_clipl_int32(v);
1690 case AV_SAMPLE_FMT_FLT:
1692 float *volp = samples;
1693 float scale = audio_volume / 256.f;
1694 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1699 case AV_SAMPLE_FMT_DBL:
1701 double *volp = samples;
1702 double scale = audio_volume / 256.;
1703 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1709 av_log(NULL, AV_LOG_FATAL,
1710 "Audio volume adjustment on sample format %s is not supported.\n",
1711 av_get_sample_fmt_name(ist->st->codec->sample_fmt));
1716 rate_emu_sleep(ist);
1718 for (i = 0; i < nb_output_streams; i++) {
1719 OutputStream *ost = &output_streams[i];
1721 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1723 do_audio_out(output_files[ost->file_index].ctx, ost, ist, decoded_frame);
1729 static int transcode_video(InputStream *ist, AVPacket *pkt, int *got_output, int64_t *pkt_pts)
1731 AVFrame *decoded_frame, *filtered_frame = NULL;
1732 void *buffer_to_free = NULL;
1736 int frame_available = 1;
1739 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1740 return AVERROR(ENOMEM);
1742 avcodec_get_frame_defaults(ist->decoded_frame);
1743 decoded_frame = ist->decoded_frame;
1744 pkt->pts = *pkt_pts;
1745 pkt->dts = ist->pts;
1746 *pkt_pts = AV_NOPTS_VALUE;
1748 ret = avcodec_decode_video2(ist->st->codec,
1749 decoded_frame, got_output, pkt);
1753 quality = same_quant ? decoded_frame->quality : 0;
1755 /* no picture yet */
1758 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1759 decoded_frame->pkt_dts);
1761 ist->next_pts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
1762 else if (ist->st->codec->time_base.num != 0) {
1763 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1764 ist->st->codec->ticks_per_frame;
1765 ist->next_pts += ((int64_t)AV_TIME_BASE *
1766 ist->st->codec->time_base.num * ticks) /
1767 ist->st->codec->time_base.den;
1770 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1772 rate_emu_sleep(ist);
1774 for (i = 0; i < nb_output_streams; i++) {
1775 OutputStream *ost = &output_streams[i];
1778 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1782 if (ost->input_video_filter) {
1784 if (ist->st->sample_aspect_ratio.num)
1785 sar = ist->st->sample_aspect_ratio;
1787 sar = ist->st->codec->sample_aspect_ratio;
1788 av_vsrc_buffer_add_frame(ost->input_video_filter, decoded_frame, ist->pts, sar);
1789 if (!ist->filtered_frame && !(ist->filtered_frame = avcodec_alloc_frame())) {
1790 av_free(buffer_to_free);
1791 return AVERROR(ENOMEM);
1793 avcodec_get_frame_defaults(ist->filtered_frame);
1794 filtered_frame = ist->filtered_frame;
1795 frame_available = avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1797 while (frame_available) {
1798 AVRational ist_pts_tb;
1799 if (ost->output_video_filter)
1800 get_filtered_video_frame(ost->output_video_filter, filtered_frame, &ost->picref, &ist_pts_tb);
1802 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1803 if (ost->picref->video && !ost->frame_aspect_ratio)
1804 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1806 filtered_frame = decoded_frame;
1809 do_video_out(output_files[ost->file_index].ctx, ost, ist, filtered_frame, &frame_size,
1810 same_quant ? quality : ost->st->codec->global_quality);
1811 if (vstats_filename && frame_size)
1812 do_video_stats(output_files[ost->file_index].ctx, ost, frame_size);
1814 frame_available = ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1816 avfilter_unref_buffer(ost->picref);
1821 av_free(buffer_to_free);
1825 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1827 AVSubtitle subtitle;
1828 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1829 &subtitle, got_output, pkt);
1835 rate_emu_sleep(ist);
1837 for (i = 0; i < nb_output_streams; i++) {
1838 OutputStream *ost = &output_streams[i];
1840 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1843 do_subtitle_out(output_files[ost->file_index].ctx, ost, ist, &subtitle, pkt->pts);
1846 avsubtitle_free(&subtitle);
1850 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1851 static int output_packet(InputStream *ist,
1852 OutputStream *ost_table, int nb_ostreams,
1853 const AVPacket *pkt)
1857 int64_t pkt_pts = AV_NOPTS_VALUE;
1860 if (ist->next_pts == AV_NOPTS_VALUE)
1861 ist->next_pts = ist->pts;
1865 av_init_packet(&avpkt);
1873 if(pkt->dts != AV_NOPTS_VALUE)
1874 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1875 if(pkt->pts != AV_NOPTS_VALUE)
1876 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1878 //while we have more to decode or while the decoder did output something on EOF
1879 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1883 ist->pts = ist->next_pts;
1885 if (avpkt.size && avpkt.size != pkt->size) {
1886 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1887 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1888 ist->showed_multi_packet_warning = 1;
1891 switch(ist->st->codec->codec_type) {
1892 case AVMEDIA_TYPE_AUDIO:
1893 ret = transcode_audio (ist, &avpkt, &got_output);
1895 case AVMEDIA_TYPE_VIDEO:
1896 ret = transcode_video (ist, &avpkt, &got_output, &pkt_pts);
1898 case AVMEDIA_TYPE_SUBTITLE:
1899 ret = transcode_subtitles(ist, &avpkt, &got_output);
1907 // touch data and size only if not EOF
1917 /* handle stream copy */
1918 if (!ist->decoding_needed) {
1919 rate_emu_sleep(ist);
1920 ist->pts = ist->next_pts;
1921 switch (ist->st->codec->codec_type) {
1922 case AVMEDIA_TYPE_AUDIO:
1923 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1924 ist->st->codec->sample_rate;
1926 case AVMEDIA_TYPE_VIDEO:
1927 if (ist->st->codec->time_base.num != 0) {
1928 int ticks = ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1929 ist->next_pts += ((int64_t)AV_TIME_BASE *
1930 ist->st->codec->time_base.num * ticks) /
1931 ist->st->codec->time_base.den;
1936 for (i = 0; pkt && i < nb_ostreams; i++) {
1937 OutputStream *ost = &ost_table[i];
1939 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1942 do_streamcopy(ist, ost, pkt);
1948 static void print_sdp(OutputFile *output_files, int n)
1952 AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
1956 for (i = 0; i < n; i++)
1957 avc[i] = output_files[i].ctx;
1959 av_sdp_create(avc, n, sdp, sizeof(sdp));
1960 printf("SDP:\n%s\n", sdp);
1965 static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
1966 char *error, int error_len)
1969 InputStream *ist = &input_streams[ist_index];
1970 if (ist->decoding_needed) {
1971 AVCodec *codec = ist->dec;
1973 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
1974 ist->st->codec->codec_id, ist->file_index, ist->st->index);
1975 return AVERROR(EINVAL);
1978 /* update requested sample format for the decoder based on the
1979 corresponding encoder sample format */
1980 for (i = 0; i < nb_output_streams; i++) {
1981 OutputStream *ost = &output_streams[i];
1982 if (ost->source_index == ist_index) {
1983 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
1988 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
1989 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
1990 ist->file_index, ist->st->index);
1991 return AVERROR(EINVAL);
1993 assert_codec_experimental(ist->st->codec, 0);
1994 assert_avoptions(ist->opts);
1997 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;
1998 ist->next_pts = AV_NOPTS_VALUE;
1999 init_pts_correction(&ist->pts_ctx);
2005 static int transcode_init(OutputFile *output_files,
2006 int nb_output_files,
2007 InputFile *input_files,
2010 int ret = 0, i, j, k;
2011 AVFormatContext *oc;
2012 AVCodecContext *codec, *icodec;
2018 /* init framerate emulation */
2019 for (i = 0; i < nb_input_files; i++) {
2020 InputFile *ifile = &input_files[i];
2021 if (ifile->rate_emu)
2022 for (j = 0; j < ifile->nb_streams; j++)
2023 input_streams[j + ifile->ist_index].start = av_gettime();
2026 /* output stream init */
2027 for (i = 0; i < nb_output_files; i++) {
2028 oc = output_files[i].ctx;
2029 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2030 av_dump_format(oc, i, oc->filename, 1);
2031 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2032 return AVERROR(EINVAL);
2036 /* for each output stream, we compute the right encoding parameters */
2037 for (i = 0; i < nb_output_streams; i++) {
2038 ost = &output_streams[i];
2039 oc = output_files[ost->file_index].ctx;
2040 ist = &input_streams[ost->source_index];
2042 if (ost->attachment_filename)
2045 codec = ost->st->codec;
2046 icodec = ist->st->codec;
2048 ost->st->disposition = ist->st->disposition;
2049 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2050 codec->chroma_sample_location = icodec->chroma_sample_location;
2052 if (ost->stream_copy) {
2053 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2055 if (extra_size > INT_MAX) {
2056 return AVERROR(EINVAL);
2059 /* if stream_copy is selected, no need to decode or encode */
2060 codec->codec_id = icodec->codec_id;
2061 codec->codec_type = icodec->codec_type;
2063 if (!codec->codec_tag) {
2064 if (!oc->oformat->codec_tag ||
2065 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2066 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
2067 codec->codec_tag = icodec->codec_tag;
2070 codec->bit_rate = icodec->bit_rate;
2071 codec->rc_max_rate = icodec->rc_max_rate;
2072 codec->rc_buffer_size = icodec->rc_buffer_size;
2073 codec->field_order = icodec->field_order;
2074 codec->extradata = av_mallocz(extra_size);
2075 if (!codec->extradata) {
2076 return AVERROR(ENOMEM);
2078 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2079 codec->extradata_size = icodec->extradata_size;
2081 codec->time_base = icodec->time_base;
2082 codec->time_base.num *= icodec->ticks_per_frame;
2083 av_reduce(&codec->time_base.num, &codec->time_base.den,
2084 codec->time_base.num, codec->time_base.den, INT_MAX);
2086 codec->time_base = ist->st->time_base;
2088 switch(codec->codec_type) {
2089 case AVMEDIA_TYPE_AUDIO:
2090 if(audio_volume != 256) {
2091 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2094 codec->channel_layout = icodec->channel_layout;
2095 codec->sample_rate = icodec->sample_rate;
2096 codec->channels = icodec->channels;
2097 codec->frame_size = icodec->frame_size;
2098 codec->audio_service_type = icodec->audio_service_type;
2099 codec->block_align = icodec->block_align;
2101 case AVMEDIA_TYPE_VIDEO:
2102 codec->pix_fmt = icodec->pix_fmt;
2103 codec->width = icodec->width;
2104 codec->height = icodec->height;
2105 codec->has_b_frames = icodec->has_b_frames;
2106 if (!codec->sample_aspect_ratio.num) {
2107 codec->sample_aspect_ratio =
2108 ost->st->sample_aspect_ratio =
2109 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2110 ist->st->codec->sample_aspect_ratio.num ?
2111 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2114 case AVMEDIA_TYPE_SUBTITLE:
2115 codec->width = icodec->width;
2116 codec->height = icodec->height;
2118 case AVMEDIA_TYPE_DATA:
2119 case AVMEDIA_TYPE_ATTACHMENT:
2126 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2128 ist->decoding_needed = 1;
2129 ost->encoding_needed = 1;
2131 switch(codec->codec_type) {
2132 case AVMEDIA_TYPE_AUDIO:
2133 ost->fifo = av_fifo_alloc(1024);
2135 return AVERROR(ENOMEM);
2137 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2139 if (!codec->sample_rate)
2140 codec->sample_rate = icodec->sample_rate;
2141 choose_sample_rate(ost->st, ost->enc);
2142 codec->time_base = (AVRational){1, codec->sample_rate};
2144 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2145 codec->sample_fmt = icodec->sample_fmt;
2146 choose_sample_fmt(ost->st, ost->enc);
2148 if (!codec->channels)
2149 codec->channels = icodec->channels;
2150 codec->channel_layout = icodec->channel_layout;
2151 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2152 codec->channel_layout = 0;
2154 ost->audio_resample = codec-> sample_rate != icodec->sample_rate || audio_sync_method > 1;
2155 icodec->request_channels = codec-> channels;
2156 ost->resample_sample_fmt = icodec->sample_fmt;
2157 ost->resample_sample_rate = icodec->sample_rate;
2158 ost->resample_channels = icodec->channels;
2160 case AVMEDIA_TYPE_VIDEO:
2161 if (codec->pix_fmt == PIX_FMT_NONE)
2162 codec->pix_fmt = icodec->pix_fmt;
2163 choose_pixel_fmt(ost->st, ost->enc);
2165 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2166 av_log(NULL, AV_LOG_FATAL, "Video pixel format is unknown, stream cannot be encoded\n");
2170 if (!codec->width || !codec->height) {
2171 codec->width = icodec->width;
2172 codec->height = icodec->height;
2175 ost->video_resample = codec->width != icodec->width ||
2176 codec->height != icodec->height ||
2177 codec->pix_fmt != icodec->pix_fmt;
2178 if (ost->video_resample) {
2179 #if !CONFIG_AVFILTER
2180 avcodec_get_frame_defaults(&ost->pict_tmp);
2181 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2182 codec->width, codec->height)) {
2183 av_log(NULL, AV_LOG_FATAL, "Cannot allocate temp picture, check pix fmt\n");
2186 ost->img_resample_ctx = sws_getContext(
2193 ost->sws_flags, NULL, NULL, NULL);
2194 if (ost->img_resample_ctx == NULL) {
2195 av_log(NULL, AV_LOG_FATAL, "Cannot get resampling context\n");
2199 codec->bits_per_raw_sample= 0;
2202 ost->resample_height = icodec->height;
2203 ost->resample_width = icodec->width;
2204 ost->resample_pix_fmt = icodec->pix_fmt;
2206 if (!ost->frame_rate.num)
2207 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2208 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2209 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2210 ost->frame_rate = ost->enc->supported_framerates[idx];
2212 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2215 if (configure_video_filters(ist, ost)) {
2216 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2221 case AVMEDIA_TYPE_SUBTITLE:
2228 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2229 char logfilename[1024];
2232 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2233 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2235 if (codec->flags & CODEC_FLAG_PASS1) {
2236 f = fopen(logfilename, "wb");
2238 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2239 logfilename, strerror(errno));
2245 size_t logbuffer_size;
2246 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2247 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2251 codec->stats_in = logbuffer;
2255 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2256 int size = codec->width * codec->height;
2257 bit_buffer_size = FFMAX(bit_buffer_size, 6*size + 200);
2262 bit_buffer = av_malloc(bit_buffer_size);
2264 av_log(NULL, AV_LOG_ERROR, "Cannot allocate %d bytes output buffer\n",
2266 return AVERROR(ENOMEM);
2269 /* open each encoder */
2270 for (i = 0; i < nb_output_streams; i++) {
2271 ost = &output_streams[i];
2272 if (ost->encoding_needed) {
2273 AVCodec *codec = ost->enc;
2274 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2276 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d:%d",
2277 ost->st->codec->codec_id, ost->file_index, ost->index);
2278 ret = AVERROR(EINVAL);
2281 if (dec->subtitle_header) {
2282 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2283 if (!ost->st->codec->subtitle_header) {
2284 ret = AVERROR(ENOMEM);
2287 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2288 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2290 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2291 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2292 ost->file_index, ost->index);
2293 ret = AVERROR(EINVAL);
2296 assert_codec_experimental(ost->st->codec, 1);
2297 assert_avoptions(ost->opts);
2298 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2299 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2300 "It takes bits/s as argument, not kbits/s\n");
2301 extra_size += ost->st->codec->extradata_size;
2303 if (ost->st->codec->me_threshold)
2304 input_streams[ost->source_index].st->codec->debug |= FF_DEBUG_MV;
2308 /* init input streams */
2309 for (i = 0; i < nb_input_streams; i++)
2310 if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0)
2313 /* discard unused programs */
2314 for (i = 0; i < nb_input_files; i++) {
2315 InputFile *ifile = &input_files[i];
2316 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2317 AVProgram *p = ifile->ctx->programs[j];
2318 int discard = AVDISCARD_ALL;
2320 for (k = 0; k < p->nb_stream_indexes; k++)
2321 if (!input_streams[ifile->ist_index + p->stream_index[k]].discard) {
2322 discard = AVDISCARD_DEFAULT;
2325 p->discard = discard;
2329 /* open files and write file headers */
2330 for (i = 0; i < nb_output_files; i++) {
2331 oc = output_files[i].ctx;
2332 oc->interrupt_callback = int_cb;
2333 if (avformat_write_header(oc, &output_files[i].opts) < 0) {
2334 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2335 ret = AVERROR(EINVAL);
2338 assert_avoptions(output_files[i].opts);
2339 if (strcmp(oc->oformat->name, "rtp")) {
2345 /* dump the file output parameters - cannot be done before in case
2347 for (i = 0; i < nb_output_files; i++) {
2348 av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2351 /* dump the stream mapping */
2352 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2353 for (i = 0; i < nb_output_streams; i++) {
2354 ost = &output_streams[i];
2356 if (ost->attachment_filename) {
2357 /* an attached file */
2358 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2359 ost->attachment_filename, ost->file_index, ost->index);
2362 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2363 input_streams[ost->source_index].file_index,
2364 input_streams[ost->source_index].st->index,
2367 if (ost->sync_ist != &input_streams[ost->source_index])
2368 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2369 ost->sync_ist->file_index,
2370 ost->sync_ist->st->index);
2371 if (ost->stream_copy)
2372 av_log(NULL, AV_LOG_INFO, " (copy)");
2374 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index].dec ?
2375 input_streams[ost->source_index].dec->name : "?",
2376 ost->enc ? ost->enc->name : "?");
2377 av_log(NULL, AV_LOG_INFO, "\n");
2381 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2386 print_sdp(output_files, nb_output_files);
2393 * The following code is the main loop of the file converter
2395 static int transcode(OutputFile *output_files,
2396 int nb_output_files,
2397 InputFile *input_files,
2401 AVFormatContext *is, *os;
2405 int no_packet_count=0;
2406 int64_t timer_start;
2408 if (!(no_packet = av_mallocz(nb_input_files)))
2411 ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
2415 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2418 timer_start = av_gettime();
2420 for(; received_sigterm == 0;) {
2421 int file_index, ist_index;
2426 ipts_min = INT64_MAX;
2429 /* select the stream that we must read now by looking at the
2430 smallest output pts */
2432 for (i = 0; i < nb_output_streams; i++) {
2436 ost = &output_streams[i];
2437 of = &output_files[ost->file_index];
2438 os = output_files[ost->file_index].ctx;
2439 ist = &input_streams[ost->source_index];
2440 if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2441 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2443 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2445 if (!input_files[ist->file_index].eof_reached){
2446 if(ipts < ipts_min) {
2448 if(input_sync ) file_index = ist->file_index;
2450 if(opts < opts_min) {
2452 if(!input_sync) file_index = ist->file_index;
2455 if (ost->frame_number >= ost->max_frames) {
2457 for (j = 0; j < of->ctx->nb_streams; j++)
2458 output_streams[of->ost_index + j].is_past_recording_time = 1;
2462 /* if none, if is finished */
2463 if (file_index < 0) {
2464 if(no_packet_count){
2466 memset(no_packet, 0, nb_input_files);
2473 /* read a frame from it and output it in the fifo */
2474 is = input_files[file_index].ctx;
2475 ret= av_read_frame(is, &pkt);
2476 if(ret == AVERROR(EAGAIN)){
2477 no_packet[file_index]=1;
2482 input_files[file_index].eof_reached = 1;
2490 memset(no_packet, 0, nb_input_files);
2493 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2494 is->streams[pkt.stream_index]);
2496 /* the following test is needed in case new streams appear
2497 dynamically in stream : we ignore them */
2498 if (pkt.stream_index >= input_files[file_index].nb_streams)
2499 goto discard_packet;
2500 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2501 ist = &input_streams[ist_index];
2503 goto discard_packet;
2505 if (pkt.dts != AV_NOPTS_VALUE)
2506 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2507 if (pkt.pts != AV_NOPTS_VALUE)
2508 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2510 if(pkt.pts != AV_NOPTS_VALUE)
2511 pkt.pts *= ist->ts_scale;
2512 if(pkt.dts != AV_NOPTS_VALUE)
2513 pkt.dts *= ist->ts_scale;
2515 // 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);
2516 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2517 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2518 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2519 int64_t delta= pkt_dts - ist->next_pts;
2520 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2521 input_files[ist->file_index].ts_offset -= delta;
2522 av_log(NULL, AV_LOG_DEBUG, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2523 delta, input_files[ist->file_index].ts_offset);
2524 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2525 if(pkt.pts != AV_NOPTS_VALUE)
2526 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2530 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2531 if (output_packet(ist, output_streams, nb_output_streams, &pkt) < 0) {
2533 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
2534 ist->file_index, ist->st->index);
2537 av_free_packet(&pkt);
2542 av_free_packet(&pkt);
2544 /* dump report by using the output first video and audio streams */
2545 print_report(output_files, output_streams, nb_output_streams, 0, timer_start);
2548 /* at the end of stream, we must flush the decoder buffers */
2549 for (i = 0; i < nb_input_streams; i++) {
2550 ist = &input_streams[i];
2551 if (ist->decoding_needed) {
2552 output_packet(ist, output_streams, nb_output_streams, NULL);
2555 flush_encoders(output_streams, nb_output_streams);
2559 /* write the trailer if needed and close file */
2560 for(i=0;i<nb_output_files;i++) {
2561 os = output_files[i].ctx;
2562 av_write_trailer(os);
2565 /* dump report by using the first video and audio streams */
2566 print_report(output_files, output_streams, nb_output_streams, 1, timer_start);
2568 /* close each encoder */
2569 for (i = 0; i < nb_output_streams; i++) {
2570 ost = &output_streams[i];
2571 if (ost->encoding_needed) {
2572 av_freep(&ost->st->codec->stats_in);
2573 avcodec_close(ost->st->codec);
2576 avfilter_graph_free(&ost->graph);
2580 /* close each decoder */
2581 for (i = 0; i < nb_input_streams; i++) {
2582 ist = &input_streams[i];
2583 if (ist->decoding_needed) {
2584 avcodec_close(ist->st->codec);
2592 av_freep(&bit_buffer);
2593 av_freep(&no_packet);
2595 if (output_streams) {
2596 for (i = 0; i < nb_output_streams; i++) {
2597 ost = &output_streams[i];
2599 if (ost->stream_copy)
2600 av_freep(&ost->st->codec->extradata);
2602 fclose(ost->logfile);
2603 ost->logfile = NULL;
2605 av_fifo_free(ost->fifo); /* works even if fifo is not
2606 initialized but set to zero */
2607 av_freep(&ost->st->codec->subtitle_header);
2608 av_free(ost->pict_tmp.data[0]);
2609 av_free(ost->forced_kf_pts);
2610 if (ost->video_resample)
2611 sws_freeContext(ost->img_resample_ctx);
2613 audio_resample_close(ost->resample);
2614 if (ost->reformat_ctx)
2615 av_audio_convert_free(ost->reformat_ctx);
2616 av_dict_free(&ost->opts);
2623 static double parse_frame_aspect_ratio(const char *arg)
2630 p = strchr(arg, ':');
2632 x = strtol(arg, &end, 10);
2634 y = strtol(end+1, &end, 10);
2636 ar = (double)x / (double)y;
2638 ar = strtod(arg, NULL);
2641 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
2647 static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
2649 return parse_option(o, "codec:a", arg, options);
2652 static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
2654 return parse_option(o, "codec:v", arg, options);
2657 static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
2659 return parse_option(o, "codec:s", arg, options);
2662 static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
2664 return parse_option(o, "codec:d", arg, options);
2667 static int opt_map(OptionsContext *o, const char *opt, const char *arg)
2669 StreamMap *m = NULL;
2670 int i, negative = 0, file_idx;
2671 int sync_file_idx = -1, sync_stream_idx;
2679 map = av_strdup(arg);
2681 /* parse sync stream first, just pick first matching stream */
2682 if (sync = strchr(map, ',')) {
2684 sync_file_idx = strtol(sync + 1, &sync, 0);
2685 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2686 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
2691 for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
2692 if (check_stream_specifier(input_files[sync_file_idx].ctx,
2693 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2694 sync_stream_idx = i;
2697 if (i == input_files[sync_file_idx].nb_streams) {
2698 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
2699 "match any streams.\n", arg);
2705 file_idx = strtol(map, &p, 0);
2706 if (file_idx >= nb_input_files || file_idx < 0) {
2707 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
2711 /* disable some already defined maps */
2712 for (i = 0; i < o->nb_stream_maps; i++) {
2713 m = &o->stream_maps[i];
2714 if (file_idx == m->file_index &&
2715 check_stream_specifier(input_files[m->file_index].ctx,
2716 input_files[m->file_index].ctx->streams[m->stream_index],
2717 *p == ':' ? p + 1 : p) > 0)
2721 for (i = 0; i < input_files[file_idx].nb_streams; i++) {
2722 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2723 *p == ':' ? p + 1 : p) <= 0)
2725 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
2726 &o->nb_stream_maps, o->nb_stream_maps + 1);
2727 m = &o->stream_maps[o->nb_stream_maps - 1];
2729 m->file_index = file_idx;
2730 m->stream_index = i;
2732 if (sync_file_idx >= 0) {
2733 m->sync_file_index = sync_file_idx;
2734 m->sync_stream_index = sync_stream_idx;
2736 m->sync_file_index = file_idx;
2737 m->sync_stream_index = i;
2742 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
2750 static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
2752 o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
2753 &o->nb_attachments, o->nb_attachments + 1);
2754 o->attachments[o->nb_attachments - 1] = arg;
2759 * Parse a metadata specifier in arg.
2760 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
2761 * @param index for type c/p, chapter/program index is written here
2762 * @param stream_spec for type s, the stream specifier is written here
2764 static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
2772 if (*(++arg) && *arg != ':') {
2773 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
2776 *stream_spec = *arg == ':' ? arg + 1 : "";
2780 if (*(++arg) == ':')
2781 *index = strtol(++arg, NULL, 0);
2784 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
2791 static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
2793 AVDictionary **meta_in = NULL;
2794 AVDictionary **meta_out;
2796 char type_in, type_out;
2797 const char *istream_spec = NULL, *ostream_spec = NULL;
2798 int idx_in = 0, idx_out = 0;
2800 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
2801 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
2803 if (type_in == 'g' || type_out == 'g')
2804 o->metadata_global_manual = 1;
2805 if (type_in == 's' || type_out == 's')
2806 o->metadata_streams_manual = 1;
2807 if (type_in == 'c' || type_out == 'c')
2808 o->metadata_chapters_manual = 1;
2810 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2811 if ((index) < 0 || (index) >= (nb_elems)) {\
2812 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
2817 #define SET_DICT(type, meta, context, index)\
2820 meta = &context->metadata;\
2823 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
2824 meta = &context->chapters[index]->metadata;\
2827 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
2828 meta = &context->programs[index]->metadata;\
2832 SET_DICT(type_in, meta_in, ic, idx_in);
2833 SET_DICT(type_out, meta_out, oc, idx_out);
2835 /* for input streams choose first matching stream */
2836 if (type_in == 's') {
2837 for (i = 0; i < ic->nb_streams; i++) {
2838 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
2839 meta_in = &ic->streams[i]->metadata;
2845 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
2850 if (type_out == 's') {
2851 for (i = 0; i < oc->nb_streams; i++) {
2852 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
2853 meta_out = &oc->streams[i]->metadata;
2854 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
2859 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
2864 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2866 const char *codec_string = encoder ? "encoder" : "decoder";
2870 avcodec_find_encoder_by_name(name) :
2871 avcodec_find_decoder_by_name(name);
2873 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
2876 if(codec->type != type) {
2877 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
2883 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
2885 char *codec_name = NULL;
2887 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
2889 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
2890 st->codec->codec_id = codec->id;
2893 return avcodec_find_decoder(st->codec->codec_id);
2897 * Add all the streams from the given input file to the global
2898 * list of input streams.
2900 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
2902 int i, rfps, rfps_base;
2904 for (i = 0; i < ic->nb_streams; i++) {
2905 AVStream *st = ic->streams[i];
2906 AVCodecContext *dec = st->codec;
2909 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2910 ist = &input_streams[nb_input_streams - 1];
2912 ist->file_index = nb_input_files;
2914 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2916 ist->ts_scale = 1.0;
2917 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
2919 ist->dec = choose_decoder(o, ic, st);
2921 switch (dec->codec_type) {
2922 case AVMEDIA_TYPE_AUDIO:
2923 if (o->audio_disable)
2924 st->discard= AVDISCARD_ALL;
2926 case AVMEDIA_TYPE_VIDEO:
2927 rfps = ic->streams[i]->r_frame_rate.num;
2928 rfps_base = ic->streams[i]->r_frame_rate.den;
2930 dec->flags |= CODEC_FLAG_EMU_EDGE;
2931 dec->height >>= dec->lowres;
2932 dec->width >>= dec->lowres;
2935 if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
2937 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",
2938 i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
2939 (float)rfps / rfps_base, rfps, rfps_base);
2942 if (o->video_disable)
2943 st->discard= AVDISCARD_ALL;
2944 else if(video_discard)
2945 st->discard= video_discard;
2947 case AVMEDIA_TYPE_DATA:
2949 case AVMEDIA_TYPE_SUBTITLE:
2950 if (o->subtitle_disable)
2951 st->discard = AVDISCARD_ALL;
2953 case AVMEDIA_TYPE_ATTACHMENT:
2954 case AVMEDIA_TYPE_UNKNOWN:
2962 static void assert_file_overwrite(const char *filename)
2964 if (!file_overwrite &&
2965 (strchr(filename, ':') == NULL || filename[1] == ':' ||
2966 av_strstart(filename, "file:", NULL))) {
2967 if (avio_check(filename, 0) == 0) {
2969 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
2971 if (!read_yesno()) {
2972 fprintf(stderr, "Not overwriting - exiting\n");
2977 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
2984 static void dump_attachment(AVStream *st, const char *filename)
2987 AVIOContext *out = NULL;
2988 AVDictionaryEntry *e;
2990 if (!st->codec->extradata_size) {
2991 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
2992 nb_input_files - 1, st->index);
2995 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
2996 filename = e->value;
2998 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
2999 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
3003 assert_file_overwrite(filename);
3005 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
3006 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
3011 avio_write(out, st->codec->extradata, st->codec->extradata_size);
3016 static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
3018 AVFormatContext *ic;
3019 AVInputFormat *file_iformat = NULL;
3023 AVDictionary **opts;
3024 int orig_nb_streams; // number of streams before avformat_find_stream_info
3027 if (!(file_iformat = av_find_input_format(o->format))) {
3028 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
3033 if (!strcmp(filename, "-"))
3036 using_stdin |= !strncmp(filename, "pipe:", 5) ||
3037 !strcmp(filename, "/dev/stdin");
3039 /* get default parameters from command line */
3040 ic = avformat_alloc_context();
3042 print_error(filename, AVERROR(ENOMEM));
3045 if (o->nb_audio_sample_rate) {
3046 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
3047 av_dict_set(&format_opts, "sample_rate", buf, 0);
3049 if (o->nb_audio_channels) {
3050 snprintf(buf, sizeof(buf), "%d", o->audio_channels[o->nb_audio_channels - 1].u.i);
3051 av_dict_set(&format_opts, "channels", buf, 0);
3053 if (o->nb_frame_rates) {
3054 av_dict_set(&format_opts, "framerate", o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
3056 if (o->nb_frame_sizes) {
3057 av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
3059 if (o->nb_frame_pix_fmts)
3060 av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
3062 ic->flags |= AVFMT_FLAG_NONBLOCK;
3063 ic->interrupt_callback = int_cb;
3065 /* open the input file with generic libav function */
3066 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3068 print_error(filename, err);
3071 assert_avoptions(format_opts);
3073 /* apply forced codec ids */
3074 for (i = 0; i < ic->nb_streams; i++)
3075 choose_decoder(o, ic, ic->streams[i]);
3077 /* Set AVCodecContext options for avformat_find_stream_info */
3078 opts = setup_find_stream_info_opts(ic, codec_opts);
3079 orig_nb_streams = ic->nb_streams;
3081 /* If not enough info to get the stream parameters, we decode the
3082 first frames to get it. (used in mpeg case for example) */
3083 ret = avformat_find_stream_info(ic, opts);
3085 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
3086 avformat_close_input(&ic);
3090 timestamp = o->start_time;
3091 /* add the stream start time */
3092 if (ic->start_time != AV_NOPTS_VALUE)
3093 timestamp += ic->start_time;
3095 /* if seeking requested, we execute it */
3096 if (o->start_time != 0) {
3097 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3099 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
3100 filename, (double)timestamp / AV_TIME_BASE);
3104 /* update the current parameters so that they match the one of the input stream */
3105 add_input_streams(o, ic);
3107 /* dump the file content */
3108 av_dump_format(ic, nb_input_files, filename, 0);
3110 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3111 input_files[nb_input_files - 1].ctx = ic;
3112 input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
3113 input_files[nb_input_files - 1].ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
3114 input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
3115 input_files[nb_input_files - 1].rate_emu = o->rate_emu;
3117 for (i = 0; i < o->nb_dump_attachment; i++) {
3120 for (j = 0; j < ic->nb_streams; j++) {
3121 AVStream *st = ic->streams[j];
3123 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
3124 dump_attachment(st, o->dump_attachment[i].u.str);
3128 for (i = 0; i < orig_nb_streams; i++)
3129 av_dict_free(&opts[i]);
3136 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3137 AVCodecContext *avctx)
3143 for (p = kf; *p; p++)
3146 ost->forced_kf_count = n;
3147 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3148 if (!ost->forced_kf_pts) {
3149 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3152 for (i = 0; i < n; i++) {
3153 p = i ? strchr(p, ',') + 1 : kf;
3154 t = parse_time_or_die("force_key_frames", p, 1);
3155 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3159 static uint8_t *get_line(AVIOContext *s)
3165 if (avio_open_dyn_buf(&line) < 0) {
3166 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
3170 while ((c = avio_r8(s)) && c != '\n')
3173 avio_close_dyn_buf(line, &buf);
3178 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
3181 char filename[1000];
3182 const char *base[3] = { getenv("AVCONV_DATADIR"),
3187 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret; i++) {
3191 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
3192 i != 1 ? "" : "/.avconv", codec_name, preset_name);
3193 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
3196 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
3197 i != 1 ? "" : "/.avconv", preset_name);
3198 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
3204 static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
3206 char *codec_name = NULL;
3208 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
3210 ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
3211 NULL, ost->st->codec->codec_type);
3212 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
3213 } else if (!strcmp(codec_name, "copy"))
3214 ost->stream_copy = 1;
3216 ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
3217 ost->st->codec->codec_id = ost->enc->id;
3221 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
3224 AVStream *st = avformat_new_stream(oc, NULL);
3225 int idx = oc->nb_streams - 1, ret = 0;
3226 char *bsf = NULL, *next, *codec_tag = NULL;
3227 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
3229 char *buf = NULL, *arg = NULL, *preset = NULL;
3230 AVIOContext *s = NULL;
3233 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
3237 if (oc->nb_streams - 1 < o->nb_streamid_map)
3238 st->id = o->streamid_map[oc->nb_streams - 1];
3240 output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3241 nb_output_streams + 1);
3242 ost = &output_streams[nb_output_streams - 1];
3243 ost->file_index = nb_output_files;
3246 st->codec->codec_type = type;
3247 choose_encoder(o, oc, ost);
3249 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3252 avcodec_get_context_defaults3(st->codec, ost->enc);
3253 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3255 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
3256 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
3259 if (!buf[0] || buf[0] == '#') {
3263 if (!(arg = strchr(buf, '='))) {
3264 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
3268 av_dict_set(&ost->opts, buf, arg, AV_DICT_DONT_OVERWRITE);
3270 } while (!s->eof_reached);
3274 av_log(NULL, AV_LOG_FATAL,
3275 "Preset %s specified for stream %d:%d, but could not be opened.\n",
3276 preset, ost->file_index, ost->index);
3280 ost->max_frames = INT64_MAX;
3281 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
3283 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
3285 if (next = strchr(bsf, ','))
3287 if (!(bsfc = av_bitstream_filter_init(bsf))) {
3288 av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
3292 bsfc_prev->next = bsfc;
3294 ost->bitstream_filters = bsfc;
3300 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
3302 uint32_t tag = strtol(codec_tag, &next, 0);
3304 tag = AV_RL32(codec_tag);
3305 st->codec->codec_tag = tag;
3308 MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
3309 if (qscale >= 0 || same_quant) {
3310 st->codec->flags |= CODEC_FLAG_QSCALE;
3311 st->codec->global_quality = FF_QP2LAMBDA * qscale;
3314 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
3315 st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
3317 av_opt_get_int(sws_opts, "sws_flags", 0, &ost->sws_flags);
3321 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
3324 const char *p = str;
3331 av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
3338 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
3342 AVCodecContext *video_enc;
3344 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
3346 video_enc = st->codec;
3348 if (!ost->stream_copy) {
3349 const char *p = NULL;
3350 char *forced_key_frames = NULL, *frame_rate = NULL, *frame_size = NULL;
3351 char *frame_aspect_ratio = NULL, *frame_pix_fmt = NULL;
3352 char *intra_matrix = NULL, *inter_matrix = NULL, *filters = NULL;
3355 MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
3356 if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
3357 av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
3361 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
3362 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
3363 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
3367 MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
3368 if (frame_aspect_ratio)
3369 ost->frame_aspect_ratio = parse_frame_aspect_ratio(frame_aspect_ratio);
3371 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
3372 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == PIX_FMT_NONE) {
3373 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
3376 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3378 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
3380 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
3381 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
3384 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
3386 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
3388 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
3389 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
3392 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
3395 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
3398 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3400 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
3403 video_enc->rc_override=
3404 av_realloc(video_enc->rc_override,
3405 sizeof(RcOverride)*(i+1));
3406 video_enc->rc_override[i].start_frame= start;
3407 video_enc->rc_override[i].end_frame = end;
3409 video_enc->rc_override[i].qscale= q;
3410 video_enc->rc_override[i].quality_factor= 1.0;
3413 video_enc->rc_override[i].qscale= 0;
3414 video_enc->rc_override[i].quality_factor= -q/100.0;
3419 video_enc->rc_override_count=i;
3420 if (!video_enc->rc_initial_buffer_occupancy)
3421 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3422 video_enc->intra_dc_precision= intra_dc_precision - 8;
3427 video_enc->flags |= CODEC_FLAG_PASS1;
3429 video_enc->flags |= CODEC_FLAG_PASS2;
3433 MATCH_PER_STREAM_OPT(forced_key_frames, str, forced_key_frames, oc, st);
3434 if (forced_key_frames)
3435 parse_forced_key_frames(forced_key_frames, ost, video_enc);
3437 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
3439 ost->top_field_first = -1;
3440 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
3442 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
3445 MATCH_PER_STREAM_OPT(filters, str, filters, oc, st);
3447 ost->avfilter = av_strdup(filters);
3454 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc)
3458 AVCodecContext *audio_enc;
3460 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO);
3463 audio_enc = st->codec;
3464 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3466 if (!ost->stream_copy) {
3467 char *sample_fmt = NULL;
3469 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
3471 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
3473 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
3474 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
3478 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
3484 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc)
3488 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA);
3489 if (!ost->stream_copy) {
3490 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
3497 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc)
3499 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT);
3500 ost->stream_copy = 1;
3504 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc)
3508 AVCodecContext *subtitle_enc;
3510 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE);
3512 subtitle_enc = st->codec;
3514 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3519 /* arg format is "output-stream-index:streamid-value". */
3520 static int opt_streamid(OptionsContext *o, const char *opt, const char *arg)
3526 av_strlcpy(idx_str, arg, sizeof(idx_str));
3527 p = strchr(idx_str, ':');
3529 av_log(NULL, AV_LOG_FATAL,
3530 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3535 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
3536 o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
3537 o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3541 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
3543 AVFormatContext *is = ifile->ctx;
3544 AVFormatContext *os = ofile->ctx;
3547 for (i = 0; i < is->nb_chapters; i++) {
3548 AVChapter *in_ch = is->chapters[i], *out_ch;
3549 int64_t ts_off = av_rescale_q(ofile->start_time - ifile->ts_offset,
3550 AV_TIME_BASE_Q, in_ch->time_base);
3551 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
3552 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
3555 if (in_ch->end < ts_off)
3557 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
3560 out_ch = av_mallocz(sizeof(AVChapter));
3562 return AVERROR(ENOMEM);
3564 out_ch->id = in_ch->id;
3565 out_ch->time_base = in_ch->time_base;
3566 out_ch->start = FFMAX(0, in_ch->start - ts_off);
3567 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
3570 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
3573 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
3575 return AVERROR(ENOMEM);
3576 os->chapters[os->nb_chapters - 1] = out_ch;
3581 static void opt_output_file(void *optctx, const char *filename)
3583 OptionsContext *o = optctx;
3584 AVFormatContext *oc;
3586 AVOutputFormat *file_oformat;
3590 if (!strcmp(filename, "-"))
3593 oc = avformat_alloc_context();
3595 print_error(filename, AVERROR(ENOMEM));
3600 file_oformat = av_guess_format(o->format, NULL, NULL);
3601 if (!file_oformat) {
3602 av_log(NULL, AV_LOG_FATAL, "Requested output format '%s' is not a suitable output format\n", o->format);
3606 file_oformat = av_guess_format(NULL, filename, NULL);
3607 if (!file_oformat) {
3608 av_log(NULL, AV_LOG_FATAL, "Unable to find a suitable output format for '%s'\n",
3614 oc->oformat = file_oformat;
3615 oc->interrupt_callback = int_cb;
3616 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3618 if (!o->nb_stream_maps) {
3619 /* pick the "best" stream of each type */
3620 #define NEW_STREAM(type, index)\
3622 ost = new_ ## type ## _stream(o, oc);\
3623 ost->source_index = index;\
3624 ost->sync_ist = &input_streams[index];\
3625 input_streams[index].discard = 0;\
3628 /* video: highest resolution */
3629 if (!o->video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
3630 int area = 0, idx = -1;
3631 for (i = 0; i < nb_input_streams; i++) {
3632 ist = &input_streams[i];
3633 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3634 ist->st->codec->width * ist->st->codec->height > area) {
3635 area = ist->st->codec->width * ist->st->codec->height;
3639 NEW_STREAM(video, idx);
3642 /* audio: most channels */
3643 if (!o->audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
3644 int channels = 0, idx = -1;
3645 for (i = 0; i < nb_input_streams; i++) {
3646 ist = &input_streams[i];
3647 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
3648 ist->st->codec->channels > channels) {
3649 channels = ist->st->codec->channels;
3653 NEW_STREAM(audio, idx);
3656 /* subtitles: pick first */
3657 if (!o->subtitle_disable && oc->oformat->subtitle_codec != CODEC_ID_NONE) {
3658 for (i = 0; i < nb_input_streams; i++)
3659 if (input_streams[i].st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3660 NEW_STREAM(subtitle, i);
3664 /* do something with data? */
3666 for (i = 0; i < o->nb_stream_maps; i++) {
3667 StreamMap *map = &o->stream_maps[i];
3672 ist = &input_streams[input_files[map->file_index].ist_index + map->stream_index];
3673 switch (ist->st->codec->codec_type) {
3674 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc); break;
3675 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc); break;
3676 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(o, oc); break;
3677 case AVMEDIA_TYPE_DATA: ost = new_data_stream(o, oc); break;
3678 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc); break;
3680 av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
3681 map->file_index, map->stream_index);
3685 ost->source_index = input_files[map->file_index].ist_index + map->stream_index;
3686 ost->sync_ist = &input_streams[input_files[map->sync_file_index].ist_index +
3687 map->sync_stream_index];
3692 /* handle attached files */
3693 for (i = 0; i < o->nb_attachments; i++) {
3695 uint8_t *attachment;
3699 if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {