2 * various utility functions for use within FFmpeg
3 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
5 * This file is part of FFmpeg.
7 * FFmpeg 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 * FFmpeg 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 FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 #include "avio_internal.h"
25 #include "libavcodec/internal.h"
26 #include "libavcodec/raw.h"
27 #include "libavcodec/bytestream.h"
28 #include "libavutil/opt.h"
29 #include "libavutil/dict.h"
30 #include "libavutil/internal.h"
31 #include "libavutil/pixdesc.h"
34 #include "libavutil/avassert.h"
35 #include "libavutil/avstring.h"
36 #include "libavutil/mathematics.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/time.h"
39 #include "libavutil/timestamp.h"
41 #include "audiointerleave.h"
53 * various utility functions for use within FFmpeg
56 unsigned avformat_version(void)
58 av_assert0(LIBAVFORMAT_VERSION_MICRO >= 100);
59 return LIBAVFORMAT_VERSION_INT;
62 const char *avformat_configuration(void)
64 return FFMPEG_CONFIGURATION;
67 const char *avformat_license(void)
69 #define LICENSE_PREFIX "libavformat license: "
70 return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
73 #define RELATIVE_TS_BASE (INT64_MAX - (1LL<<48))
75 static int is_relative(int64_t ts) {
76 return ts > (RELATIVE_TS_BASE - (1LL<<48));
80 * Wrap a given time stamp, if there is an indication for an overflow
83 * @param timestamp the time stamp to wrap
84 * @return resulting time stamp
86 static int64_t wrap_timestamp(AVStream *st, int64_t timestamp)
88 if (st->pts_wrap_behavior != AV_PTS_WRAP_IGNORE &&
89 st->pts_wrap_reference != AV_NOPTS_VALUE && timestamp != AV_NOPTS_VALUE) {
90 if (st->pts_wrap_behavior == AV_PTS_WRAP_ADD_OFFSET &&
91 timestamp < st->pts_wrap_reference)
92 return timestamp + (1ULL<<st->pts_wrap_bits);
93 else if (st->pts_wrap_behavior == AV_PTS_WRAP_SUB_OFFSET &&
94 timestamp >= st->pts_wrap_reference)
95 return timestamp - (1ULL<<st->pts_wrap_bits);
100 MAKE_ACCESSORS(AVStream, stream, AVRational, r_frame_rate)
101 MAKE_ACCESSORS(AVFormatContext, format, AVCodec *, video_codec)
102 MAKE_ACCESSORS(AVFormatContext, format, AVCodec *, audio_codec)
103 MAKE_ACCESSORS(AVFormatContext, format, AVCodec *, subtitle_codec)
105 static AVCodec *find_decoder(AVFormatContext *s, AVStream *st, enum AVCodecID codec_id)
107 if (st->codec->codec)
108 return st->codec->codec;
110 switch(st->codec->codec_type){
111 case AVMEDIA_TYPE_VIDEO:
112 if(s->video_codec) return s->video_codec;
114 case AVMEDIA_TYPE_AUDIO:
115 if(s->audio_codec) return s->audio_codec;
117 case AVMEDIA_TYPE_SUBTITLE:
118 if(s->subtitle_codec) return s->subtitle_codec;
122 return avcodec_find_decoder(codec_id);
125 int av_format_get_probe_score(const AVFormatContext *s)
127 return s->probe_score;
130 /* an arbitrarily chosen "sane" max packet size -- 50M */
131 #define SANE_CHUNK_SIZE (50000000)
133 int ffio_limit(AVIOContext *s, int size)
136 int64_t remaining= s->maxsize - avio_tell(s);
137 if(remaining < size){
138 int64_t newsize= avio_size(s);
139 if(!s->maxsize || s->maxsize<newsize)
140 s->maxsize= newsize - !newsize;
141 remaining= s->maxsize - avio_tell(s);
142 remaining= FFMAX(remaining, 0);
145 if(s->maxsize>=0 && remaining+1 < size){
146 av_log(NULL, remaining ? AV_LOG_ERROR : AV_LOG_DEBUG, "Truncating packet of size %d to %"PRId64"\n", size, remaining+1);
154 * Read the data in sane-sized chunks and append to pkt.
155 * Return the number of bytes read or an error.
157 static int append_packet_chunked(AVIOContext *s, AVPacket *pkt, int size)
159 int64_t orig_pos = pkt->pos; // av_grow_packet might reset pos
160 int orig_size = pkt->size;
164 int prev_size = pkt->size;
168 * When the caller requests a lot of data, limit it to the amount left
169 * in file or SANE_CHUNK_SIZE when it is not known
172 if (read_size > SANE_CHUNK_SIZE/10) {
173 read_size = ffio_limit(s, read_size);
174 // If filesize/maxsize is unknown, limit to SANE_CHUNK_SIZE
176 read_size = FFMIN(read_size, SANE_CHUNK_SIZE);
179 ret = av_grow_packet(pkt, read_size);
183 ret = avio_read(s, pkt->data + prev_size, read_size);
184 if (ret != read_size) {
185 av_shrink_packet(pkt, prev_size + FFMAX(ret, 0));
192 pkt->flags |= AV_PKT_FLAG_CORRUPT;
197 return pkt->size > orig_size ? pkt->size - orig_size : ret;
200 int av_get_packet(AVIOContext *s, AVPacket *pkt, int size)
205 pkt->pos = avio_tell(s);
207 return append_packet_chunked(s, pkt, size);
210 int av_append_packet(AVIOContext *s, AVPacket *pkt, int size)
213 return av_get_packet(s, pkt, size);
214 return append_packet_chunked(s, pkt, size);
218 int av_filename_number_test(const char *filename)
221 return filename && (av_get_frame_filename(buf, sizeof(buf), filename, 1)>=0);
224 AVInputFormat *av_probe_input_format3(AVProbeData *pd, int is_opened, int *score_ret)
226 AVProbeData lpd = *pd;
227 AVInputFormat *fmt1 = NULL, *fmt;
228 int score, nodat = 0, score_max=0;
229 const static uint8_t zerobuffer[AVPROBE_PADDING_SIZE];
232 lpd.buf = zerobuffer;
234 if (lpd.buf_size > 10 && ff_id3v2_match(lpd.buf, ID3v2_DEFAULT_MAGIC)) {
235 int id3len = ff_id3v2_tag_len(lpd.buf);
236 if (lpd.buf_size > id3len + 16) {
238 lpd.buf_size -= id3len;
244 while ((fmt1 = av_iformat_next(fmt1))) {
245 if (!is_opened == !(fmt1->flags & AVFMT_NOFILE))
248 if (fmt1->read_probe) {
249 score = fmt1->read_probe(&lpd);
250 if(fmt1->extensions && av_match_ext(lpd.filename, fmt1->extensions))
251 score = FFMAX(score, nodat ? AVPROBE_SCORE_EXTENSION / 2 - 1 : 1);
252 } else if (fmt1->extensions) {
253 if (av_match_ext(lpd.filename, fmt1->extensions)) {
254 score = AVPROBE_SCORE_EXTENSION;
257 if (score > score_max) {
260 }else if (score == score_max)
264 score_max = FFMIN(AVPROBE_SCORE_EXTENSION / 2 - 1, score_max);
265 *score_ret= score_max;
270 AVInputFormat *av_probe_input_format2(AVProbeData *pd, int is_opened, int *score_max)
273 AVInputFormat *fmt= av_probe_input_format3(pd, is_opened, &score_ret);
274 if(score_ret > *score_max){
275 *score_max= score_ret;
281 AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened){
283 return av_probe_input_format2(pd, is_opened, &score);
286 static int set_codec_from_probe_data(AVFormatContext *s, AVStream *st, AVProbeData *pd)
288 static const struct {
289 const char *name; enum AVCodecID id; enum AVMediaType type;
291 { "aac" , AV_CODEC_ID_AAC , AVMEDIA_TYPE_AUDIO },
292 { "ac3" , AV_CODEC_ID_AC3 , AVMEDIA_TYPE_AUDIO },
293 { "dts" , AV_CODEC_ID_DTS , AVMEDIA_TYPE_AUDIO },
294 { "eac3" , AV_CODEC_ID_EAC3 , AVMEDIA_TYPE_AUDIO },
295 { "h264" , AV_CODEC_ID_H264 , AVMEDIA_TYPE_VIDEO },
296 { "loas" , AV_CODEC_ID_AAC_LATM , AVMEDIA_TYPE_AUDIO },
297 { "m4v" , AV_CODEC_ID_MPEG4 , AVMEDIA_TYPE_VIDEO },
298 { "mp3" , AV_CODEC_ID_MP3 , AVMEDIA_TYPE_AUDIO },
299 { "mpegvideo", AV_CODEC_ID_MPEG2VIDEO, AVMEDIA_TYPE_VIDEO },
303 AVInputFormat *fmt = av_probe_input_format3(pd, 1, &score);
305 if (fmt && st->request_probe <= score) {
307 av_log(s, AV_LOG_DEBUG, "Probe with size=%d, packets=%d detected %s with score=%d\n",
308 pd->buf_size, MAX_PROBE_PACKETS - st->probe_packets, fmt->name, score);
309 for (i = 0; fmt_id_type[i].name; i++) {
310 if (!strcmp(fmt->name, fmt_id_type[i].name)) {
311 st->codec->codec_id = fmt_id_type[i].id;
312 st->codec->codec_type = fmt_id_type[i].type;
320 /************************************************************/
321 /* input media file */
323 int av_demuxer_open(AVFormatContext *ic){
326 if (ic->iformat->read_header) {
327 err = ic->iformat->read_header(ic);
332 if (ic->pb && !ic->data_offset)
333 ic->data_offset = avio_tell(ic->pb);
339 int av_probe_input_buffer2(AVIOContext *pb, AVInputFormat **fmt,
340 const char *filename, void *logctx,
341 unsigned int offset, unsigned int max_probe_size)
343 AVProbeData pd = { filename ? filename : "", NULL, -offset };
344 unsigned char *buf = NULL;
346 int ret = 0, probe_size, buf_offset = 0;
349 if (!max_probe_size) {
350 max_probe_size = PROBE_BUF_MAX;
351 } else if (max_probe_size > PROBE_BUF_MAX) {
352 max_probe_size = PROBE_BUF_MAX;
353 } else if (max_probe_size < PROBE_BUF_MIN) {
354 av_log(logctx, AV_LOG_ERROR,
355 "Specified probe size value %u cannot be < %u\n", max_probe_size, PROBE_BUF_MIN);
356 return AVERROR(EINVAL);
359 if (offset >= max_probe_size) {
360 return AVERROR(EINVAL);
363 if (!*fmt && pb->av_class && av_opt_get(pb, "mime_type", AV_OPT_SEARCH_CHILDREN, &mime_type) >= 0 && mime_type) {
364 if (!av_strcasecmp(mime_type, "audio/aacp")) {
365 *fmt = av_find_input_format("aac");
367 av_freep(&mime_type);
370 for(probe_size= PROBE_BUF_MIN; probe_size<=max_probe_size && !*fmt;
371 probe_size = FFMIN(probe_size<<1, FFMAX(max_probe_size, probe_size+1))) {
373 if (probe_size < offset) {
376 score = probe_size < max_probe_size ? AVPROBE_SCORE_RETRY : 0;
378 /* read probe data */
379 if ((ret = av_reallocp(&buf, probe_size + AVPROBE_PADDING_SIZE)) < 0)
381 if ((ret = avio_read(pb, buf + buf_offset, probe_size - buf_offset)) < 0) {
382 /* fail if error was not end of file, otherwise, lower score */
383 if (ret != AVERROR_EOF) {
388 ret = 0; /* error was end of file, nothing read */
390 pd.buf_size = buf_offset += ret;
391 pd.buf = &buf[offset];
393 memset(pd.buf + pd.buf_size, 0, AVPROBE_PADDING_SIZE);
395 /* guess file format */
396 *fmt = av_probe_input_format2(&pd, 1, &score);
398 if(score <= AVPROBE_SCORE_RETRY){ //this can only be true in the last iteration
399 av_log(logctx, AV_LOG_WARNING, "Format %s detected only with low score of %d, misdetection possible!\n", (*fmt)->name, score);
401 av_log(logctx, AV_LOG_DEBUG, "Format %s probed with size=%d and score=%d\n", (*fmt)->name, probe_size, score);
407 return AVERROR_INVALIDDATA;
410 /* rewind. reuse probe buffer to avoid seeking */
411 ret = ffio_rewind_with_probe_data(pb, &buf, pd.buf_size);
413 return ret < 0 ? ret : score;
416 int av_probe_input_buffer(AVIOContext *pb, AVInputFormat **fmt,
417 const char *filename, void *logctx,
418 unsigned int offset, unsigned int max_probe_size)
420 int ret = av_probe_input_buffer2(pb, fmt, filename, logctx, offset, max_probe_size);
421 return ret < 0 ? ret : 0;
425 /* open input file and probe the format if necessary */
426 static int init_input(AVFormatContext *s, const char *filename, AVDictionary **options)
429 AVProbeData pd = {filename, NULL, 0};
430 int score = AVPROBE_SCORE_RETRY;
433 s->flags |= AVFMT_FLAG_CUSTOM_IO;
435 return av_probe_input_buffer2(s->pb, &s->iformat, filename, s, 0, s->probesize);
436 else if (s->iformat->flags & AVFMT_NOFILE)
437 av_log(s, AV_LOG_WARNING, "Custom AVIOContext makes no sense and "
438 "will be ignored with AVFMT_NOFILE format.\n");
442 if ( (s->iformat && s->iformat->flags & AVFMT_NOFILE) ||
443 (!s->iformat && (s->iformat = av_probe_input_format2(&pd, 0, &score))))
446 if ((ret = avio_open2(&s->pb, filename, AVIO_FLAG_READ | s->avio_flags,
447 &s->interrupt_callback, options)) < 0)
451 return av_probe_input_buffer2(s->pb, &s->iformat, filename, s, 0, s->probesize);
454 static AVPacket *add_to_pktbuf(AVPacketList **packet_buffer, AVPacket *pkt,
455 AVPacketList **plast_pktl){
456 AVPacketList *pktl = av_mallocz(sizeof(AVPacketList));
461 (*plast_pktl)->next = pktl;
463 *packet_buffer = pktl;
465 /* add the packet in the buffered packet list */
471 int avformat_queue_attached_pictures(AVFormatContext *s)
474 for (i = 0; i < s->nb_streams; i++)
475 if (s->streams[i]->disposition & AV_DISPOSITION_ATTACHED_PIC &&
476 s->streams[i]->discard < AVDISCARD_ALL) {
477 AVPacket copy = s->streams[i]->attached_pic;
478 copy.buf = av_buffer_ref(copy.buf);
480 return AVERROR(ENOMEM);
482 add_to_pktbuf(&s->raw_packet_buffer, ©, &s->raw_packet_buffer_end);
487 int avformat_open_input(AVFormatContext **ps, const char *filename, AVInputFormat *fmt, AVDictionary **options)
489 AVFormatContext *s = *ps;
491 AVDictionary *tmp = NULL;
492 ID3v2ExtraMeta *id3v2_extra_meta = NULL;
494 if (!s && !(s = avformat_alloc_context()))
495 return AVERROR(ENOMEM);
497 av_log(NULL, AV_LOG_ERROR, "Input context has not been properly allocated by avformat_alloc_context() and is not NULL either\n");
498 return AVERROR(EINVAL);
504 av_dict_copy(&tmp, *options, 0);
506 if ((ret = av_opt_set_dict(s, &tmp)) < 0)
509 if ((ret = init_input(s, filename, &tmp)) < 0)
511 s->probe_score = ret;
512 avio_skip(s->pb, s->skip_initial_bytes);
514 /* check filename in case an image number is expected */
515 if (s->iformat->flags & AVFMT_NEEDNUMBER) {
516 if (!av_filename_number_test(filename)) {
517 ret = AVERROR(EINVAL);
522 s->duration = s->start_time = AV_NOPTS_VALUE;
523 av_strlcpy(s->filename, filename ? filename : "", sizeof(s->filename));
525 /* allocate private data */
526 if (s->iformat->priv_data_size > 0) {
527 if (!(s->priv_data = av_mallocz(s->iformat->priv_data_size))) {
528 ret = AVERROR(ENOMEM);
531 if (s->iformat->priv_class) {
532 *(const AVClass**)s->priv_data = s->iformat->priv_class;
533 av_opt_set_defaults(s->priv_data);
534 if ((ret = av_opt_set_dict(s->priv_data, &tmp)) < 0)
539 /* e.g. AVFMT_NOFILE formats will not have a AVIOContext */
541 ff_id3v2_read(s, ID3v2_DEFAULT_MAGIC, &id3v2_extra_meta);
543 if (!(s->flags&AVFMT_FLAG_PRIV_OPT) && s->iformat->read_header)
544 if ((ret = s->iformat->read_header(s)) < 0)
547 if (id3v2_extra_meta) {
548 if (!strcmp(s->iformat->name, "mp3") || !strcmp(s->iformat->name, "aac") ||
549 !strcmp(s->iformat->name, "tta")) {
550 if((ret = ff_id3v2_parse_apic(s, &id3v2_extra_meta)) < 0)
553 av_log(s, AV_LOG_DEBUG, "demuxer does not support additional id3 data, skipping\n");
555 ff_id3v2_free_extra_meta(&id3v2_extra_meta);
557 if ((ret = avformat_queue_attached_pictures(s)) < 0)
560 if (!(s->flags&AVFMT_FLAG_PRIV_OPT) && s->pb && !s->data_offset)
561 s->data_offset = avio_tell(s->pb);
563 s->raw_packet_buffer_remaining_size = RAW_PACKET_BUFFER_SIZE;
566 av_dict_free(options);
573 ff_id3v2_free_extra_meta(&id3v2_extra_meta);
575 if (s->pb && !(s->flags & AVFMT_FLAG_CUSTOM_IO))
577 avformat_free_context(s);
582 /*******************************************************/
584 static void force_codec_ids(AVFormatContext *s, AVStream *st)
586 switch(st->codec->codec_type){
587 case AVMEDIA_TYPE_VIDEO:
588 if(s->video_codec_id) st->codec->codec_id= s->video_codec_id;
590 case AVMEDIA_TYPE_AUDIO:
591 if(s->audio_codec_id) st->codec->codec_id= s->audio_codec_id;
593 case AVMEDIA_TYPE_SUBTITLE:
594 if(s->subtitle_codec_id)st->codec->codec_id= s->subtitle_codec_id;
599 static int probe_codec(AVFormatContext *s, AVStream *st, const AVPacket *pkt)
601 if(st->request_probe>0){
602 AVProbeData *pd = &st->probe_data;
604 av_log(s, AV_LOG_DEBUG, "probing stream %d pp:%d\n", st->index, st->probe_packets);
608 uint8_t *new_buf = av_realloc(pd->buf, pd->buf_size+pkt->size+AVPROBE_PADDING_SIZE);
610 av_log(s, AV_LOG_WARNING,
611 "Failed to reallocate probe buffer for stream %d\n",
616 memcpy(pd->buf+pd->buf_size, pkt->data, pkt->size);
617 pd->buf_size += pkt->size;
618 memset(pd->buf+pd->buf_size, 0, AVPROBE_PADDING_SIZE);
621 st->probe_packets = 0;
623 av_log(s, AV_LOG_WARNING, "nothing to probe for stream %d\n",
628 end= s->raw_packet_buffer_remaining_size <= 0
629 || st->probe_packets<=0;
631 if(end || av_log2(pd->buf_size) != av_log2(pd->buf_size - pkt->size)){
632 int score= set_codec_from_probe_data(s, st, pd);
633 if( (st->codec->codec_id != AV_CODEC_ID_NONE && score > AVPROBE_SCORE_RETRY)
637 st->request_probe= -1;
638 if(st->codec->codec_id != AV_CODEC_ID_NONE){
639 av_log(s, AV_LOG_DEBUG, "probed stream %d\n", st->index);
641 av_log(s, AV_LOG_WARNING, "probed stream %d failed\n", st->index);
643 force_codec_ids(s, st);
649 int ff_read_packet(AVFormatContext *s, AVPacket *pkt)
655 AVPacketList *pktl = s->raw_packet_buffer;
659 st = s->streams[pkt->stream_index];
660 if (s->raw_packet_buffer_remaining_size <= 0) {
661 if ((err = probe_codec(s, st, NULL)) < 0)
664 if(st->request_probe <= 0){
665 s->raw_packet_buffer = pktl->next;
666 s->raw_packet_buffer_remaining_size += pkt->size;
675 ret= s->iformat->read_packet(s, pkt);
677 if (!pktl || ret == AVERROR(EAGAIN))
679 for (i = 0; i < s->nb_streams; i++) {
681 if (st->probe_packets) {
682 if ((err = probe_codec(s, st, NULL)) < 0)
685 av_assert0(st->request_probe <= 0);
690 if ((s->flags & AVFMT_FLAG_DISCARD_CORRUPT) &&
691 (pkt->flags & AV_PKT_FLAG_CORRUPT)) {
692 av_log(s, AV_LOG_WARNING,
693 "Dropped corrupted packet (stream = %d)\n",
699 if(!(s->flags & AVFMT_FLAG_KEEP_SIDE_DATA))
700 av_packet_merge_side_data(pkt);
702 if(pkt->stream_index >= (unsigned)s->nb_streams){
703 av_log(s, AV_LOG_ERROR, "Invalid stream index %d\n", pkt->stream_index);
707 st= s->streams[pkt->stream_index];
708 pkt->dts = wrap_timestamp(st, pkt->dts);
709 pkt->pts = wrap_timestamp(st, pkt->pts);
711 force_codec_ids(s, st);
713 /* TODO: audio: time filter; video: frame reordering (pts != dts) */
714 if (s->use_wallclock_as_timestamps)
715 pkt->dts = pkt->pts = av_rescale_q(av_gettime(), AV_TIME_BASE_Q, st->time_base);
717 if(!pktl && st->request_probe <= 0)
720 add_to_pktbuf(&s->raw_packet_buffer, pkt, &s->raw_packet_buffer_end);
721 s->raw_packet_buffer_remaining_size -= pkt->size;
723 if ((err = probe_codec(s, st, pkt)) < 0)
728 #if FF_API_READ_PACKET
729 int av_read_packet(AVFormatContext *s, AVPacket *pkt)
731 return ff_read_packet(s, pkt);
736 /**********************************************************/
738 static int determinable_frame_size(AVCodecContext *avctx)
740 if (/*avctx->codec_id == AV_CODEC_ID_AAC ||*/
741 avctx->codec_id == AV_CODEC_ID_MP1 ||
742 avctx->codec_id == AV_CODEC_ID_MP2 ||
743 avctx->codec_id == AV_CODEC_ID_MP3/* ||
744 avctx->codec_id == AV_CODEC_ID_CELT*/)
750 * Get the number of samples of an audio frame. Return -1 on error.
752 int ff_get_audio_frame_size(AVCodecContext *enc, int size, int mux)
756 /* give frame_size priority if demuxing */
757 if (!mux && enc->frame_size > 1)
758 return enc->frame_size;
760 if ((frame_size = av_get_audio_frame_duration(enc, size)) > 0)
763 /* Fall back on using frame_size if muxing. */
764 if (enc->frame_size > 1)
765 return enc->frame_size;
767 //For WMA we currently have no other means to calculate duration thus we
768 //do it here by assuming CBR, which is true for all known cases.
769 if(!mux && enc->bit_rate>0 && size>0 && enc->sample_rate>0 && enc->block_align>1) {
770 if (enc->codec_id == AV_CODEC_ID_WMAV1 || enc->codec_id == AV_CODEC_ID_WMAV2)
771 return ((int64_t)size * 8 * enc->sample_rate) / enc->bit_rate;
779 * Return the frame duration in seconds. Return 0 if not available.
781 void ff_compute_frame_duration(int *pnum, int *pden, AVStream *st,
782 AVCodecParserContext *pc, AVPacket *pkt)
788 switch(st->codec->codec_type) {
789 case AVMEDIA_TYPE_VIDEO:
790 if (st->r_frame_rate.num && !pc) {
791 *pnum = st->r_frame_rate.den;
792 *pden = st->r_frame_rate.num;
793 } else if(st->time_base.num*1000LL > st->time_base.den) {
794 *pnum = st->time_base.num;
795 *pden = st->time_base.den;
796 }else if(st->codec->time_base.num*1000LL > st->codec->time_base.den){
797 *pnum = st->codec->time_base.num;
798 *pden = st->codec->time_base.den;
799 if (pc && pc->repeat_pict) {
800 if (*pnum > INT_MAX / (1 + pc->repeat_pict))
801 *pden /= 1 + pc->repeat_pict;
803 *pnum *= 1 + pc->repeat_pict;
805 //If this codec can be interlaced or progressive then we need a parser to compute duration of a packet
806 //Thus if we have no parser in such case leave duration undefined.
807 if(st->codec->ticks_per_frame>1 && !pc){
812 case AVMEDIA_TYPE_AUDIO:
813 frame_size = ff_get_audio_frame_size(st->codec, pkt->size, 0);
814 if (frame_size <= 0 || st->codec->sample_rate <= 0)
817 *pden = st->codec->sample_rate;
824 static int is_intra_only(AVCodecContext *enc){
825 const AVCodecDescriptor *desc;
827 if(enc->codec_type != AVMEDIA_TYPE_VIDEO)
830 desc = av_codec_get_codec_descriptor(enc);
832 desc = avcodec_descriptor_get(enc->codec_id);
833 av_codec_set_codec_descriptor(enc, desc);
836 return !!(desc->props & AV_CODEC_PROP_INTRA_ONLY);
840 static int has_decode_delay_been_guessed(AVStream *st)
842 if(st->codec->codec_id != AV_CODEC_ID_H264) return 1;
843 if(!st->info) // if we have left find_stream_info then nb_decoded_frames won't increase anymore for stream copy
845 #if CONFIG_H264_DECODER
846 if(st->codec->has_b_frames &&
847 avpriv_h264_has_num_reorder_frames(st->codec) == st->codec->has_b_frames)
850 if(st->codec->has_b_frames<3)
851 return st->nb_decoded_frames >= 7;
852 else if(st->codec->has_b_frames<4)
853 return st->nb_decoded_frames >= 18;
855 return st->nb_decoded_frames >= 20;
858 static AVPacketList *get_next_pkt(AVFormatContext *s, AVStream *st, AVPacketList *pktl)
862 if (pktl == s->parse_queue_end)
863 return s->packet_buffer;
867 static int update_wrap_reference(AVFormatContext *s, AVStream *st, int stream_index)
869 if (s->correct_ts_overflow && st->pts_wrap_bits < 63 &&
870 st->pts_wrap_reference == AV_NOPTS_VALUE && st->first_dts != AV_NOPTS_VALUE) {
873 // reference time stamp should be 60 s before first time stamp
874 int64_t pts_wrap_reference = st->first_dts - av_rescale(60, st->time_base.den, st->time_base.num);
875 // if first time stamp is not more than 1/8 and 60s before the wrap point, subtract rather than add wrap offset
876 int pts_wrap_behavior = (st->first_dts < (1LL<<st->pts_wrap_bits) - (1LL<<st->pts_wrap_bits-3)) ||
877 (st->first_dts < (1LL<<st->pts_wrap_bits) - av_rescale(60, st->time_base.den, st->time_base.num)) ?
878 AV_PTS_WRAP_ADD_OFFSET : AV_PTS_WRAP_SUB_OFFSET;
880 AVProgram *first_program = av_find_program_from_stream(s, NULL, stream_index);
882 if (!first_program) {
883 int default_stream_index = av_find_default_stream_index(s);
884 if (s->streams[default_stream_index]->pts_wrap_reference == AV_NOPTS_VALUE) {
885 for (i=0; i<s->nb_streams; i++) {
886 s->streams[i]->pts_wrap_reference = pts_wrap_reference;
887 s->streams[i]->pts_wrap_behavior = pts_wrap_behavior;
891 st->pts_wrap_reference = s->streams[default_stream_index]->pts_wrap_reference;
892 st->pts_wrap_behavior = s->streams[default_stream_index]->pts_wrap_behavior;
896 AVProgram *program = first_program;
898 if (program->pts_wrap_reference != AV_NOPTS_VALUE) {
899 pts_wrap_reference = program->pts_wrap_reference;
900 pts_wrap_behavior = program->pts_wrap_behavior;
903 program = av_find_program_from_stream(s, program, stream_index);
906 // update every program with differing pts_wrap_reference
907 program = first_program;
909 if (program->pts_wrap_reference != pts_wrap_reference) {
910 for (i=0; i<program->nb_stream_indexes; i++) {
911 s->streams[program->stream_index[i]]->pts_wrap_reference = pts_wrap_reference;
912 s->streams[program->stream_index[i]]->pts_wrap_behavior = pts_wrap_behavior;
915 program->pts_wrap_reference = pts_wrap_reference;
916 program->pts_wrap_behavior = pts_wrap_behavior;
918 program = av_find_program_from_stream(s, program, stream_index);
926 static void update_initial_timestamps(AVFormatContext *s, int stream_index,
927 int64_t dts, int64_t pts, AVPacket *pkt)
929 AVStream *st= s->streams[stream_index];
930 AVPacketList *pktl= s->parse_queue ? s->parse_queue : s->packet_buffer;
931 int64_t pts_buffer[MAX_REORDER_DELAY+1];
935 if(st->first_dts != AV_NOPTS_VALUE || dts == AV_NOPTS_VALUE || st->cur_dts == AV_NOPTS_VALUE || is_relative(dts))
938 delay = st->codec->has_b_frames;
939 st->first_dts= dts - (st->cur_dts - RELATIVE_TS_BASE);
941 shift = st->first_dts - RELATIVE_TS_BASE;
943 for (i=0; i<MAX_REORDER_DELAY+1; i++)
944 pts_buffer[i] = AV_NOPTS_VALUE;
946 if (is_relative(pts))
949 for(; pktl; pktl= get_next_pkt(s, st, pktl)){
950 if(pktl->pkt.stream_index != stream_index)
952 if(is_relative(pktl->pkt.pts))
953 pktl->pkt.pts += shift;
955 if(is_relative(pktl->pkt.dts))
956 pktl->pkt.dts += shift;
958 if(st->start_time == AV_NOPTS_VALUE && pktl->pkt.pts != AV_NOPTS_VALUE)
959 st->start_time= pktl->pkt.pts;
961 if(pktl->pkt.pts != AV_NOPTS_VALUE && delay <= MAX_REORDER_DELAY && has_decode_delay_been_guessed(st)){
962 pts_buffer[0]= pktl->pkt.pts;
963 for(i=0; i<delay && pts_buffer[i] > pts_buffer[i+1]; i++)
964 FFSWAP(int64_t, pts_buffer[i], pts_buffer[i+1]);
965 if(pktl->pkt.dts == AV_NOPTS_VALUE)
966 pktl->pkt.dts= pts_buffer[0];
970 if (update_wrap_reference(s, st, stream_index) && st->pts_wrap_behavior == AV_PTS_WRAP_SUB_OFFSET) {
971 // correct first time stamps to negative values
972 st->first_dts = wrap_timestamp(st, st->first_dts);
973 st->cur_dts = wrap_timestamp(st, st->cur_dts);
974 pkt->dts = wrap_timestamp(st, pkt->dts);
975 pkt->pts = wrap_timestamp(st, pkt->pts);
976 pts = wrap_timestamp(st, pts);
979 if (st->start_time == AV_NOPTS_VALUE)
980 st->start_time = pts;
983 static void update_initial_durations(AVFormatContext *s, AVStream *st,
984 int stream_index, int duration)
986 AVPacketList *pktl= s->parse_queue ? s->parse_queue : s->packet_buffer;
987 int64_t cur_dts= RELATIVE_TS_BASE;
989 if(st->first_dts != AV_NOPTS_VALUE){
990 cur_dts= st->first_dts;
991 for(; pktl; pktl= get_next_pkt(s, st, pktl)){
992 if(pktl->pkt.stream_index == stream_index){
993 if(pktl->pkt.pts != pktl->pkt.dts || pktl->pkt.dts != AV_NOPTS_VALUE || pktl->pkt.duration)
998 if(pktl && pktl->pkt.dts != st->first_dts) {
999 av_log(s, AV_LOG_DEBUG, "first_dts %s not matching first dts %s (pts %s, duration %d) in the queue\n",
1000 av_ts2str(st->first_dts), av_ts2str(pktl->pkt.dts), av_ts2str(pktl->pkt.pts), pktl->pkt.duration);
1004 av_log(s, AV_LOG_DEBUG, "first_dts %s but no packet with dts in the queue\n", av_ts2str(st->first_dts));
1007 pktl= s->parse_queue ? s->parse_queue : s->packet_buffer;
1008 st->first_dts = cur_dts;
1009 }else if(st->cur_dts != RELATIVE_TS_BASE)
1012 for(; pktl; pktl= get_next_pkt(s, st, pktl)){
1013 if(pktl->pkt.stream_index != stream_index)
1015 if(pktl->pkt.pts == pktl->pkt.dts && (pktl->pkt.dts == AV_NOPTS_VALUE || pktl->pkt.dts == st->first_dts)
1016 && !pktl->pkt.duration){
1017 pktl->pkt.dts= cur_dts;
1018 if(!st->codec->has_b_frames)
1019 pktl->pkt.pts= cur_dts;
1020 // if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
1021 pktl->pkt.duration = duration;
1024 cur_dts = pktl->pkt.dts + pktl->pkt.duration;
1027 st->cur_dts= cur_dts;
1030 static void compute_pkt_fields(AVFormatContext *s, AVStream *st,
1031 AVCodecParserContext *pc, AVPacket *pkt)
1033 int num, den, presentation_delayed, delay, i;
1036 if (s->flags & AVFMT_FLAG_NOFILLIN)
1039 if((s->flags & AVFMT_FLAG_IGNDTS) && pkt->pts != AV_NOPTS_VALUE)
1040 pkt->dts= AV_NOPTS_VALUE;
1042 if (pc && pc->pict_type == AV_PICTURE_TYPE_B
1043 && !st->codec->has_b_frames)
1044 //FIXME Set low_delay = 0 when has_b_frames = 1
1045 st->codec->has_b_frames = 1;
1047 /* do we have a video B-frame ? */
1048 delay= st->codec->has_b_frames;
1049 presentation_delayed = 0;
1051 /* XXX: need has_b_frame, but cannot get it if the codec is
1054 pc && pc->pict_type != AV_PICTURE_TYPE_B)
1055 presentation_delayed = 1;
1057 if (pkt->pts != AV_NOPTS_VALUE && pkt->dts != AV_NOPTS_VALUE &&
1058 st->pts_wrap_bits < 63 &&
1059 pkt->dts - (1LL << (st->pts_wrap_bits - 1)) > pkt->pts) {
1060 if(is_relative(st->cur_dts) || pkt->dts - (1LL<<(st->pts_wrap_bits-1)) > st->cur_dts) {
1061 pkt->dts -= 1LL<<st->pts_wrap_bits;
1063 pkt->pts += 1LL<<st->pts_wrap_bits;
1066 // some mpeg2 in mpeg-ps lack dts (issue171 / input_file.mpg)
1067 // we take the conservative approach and discard both
1068 // Note, if this is misbehaving for a H.264 file then possibly presentation_delayed is not set correctly.
1069 if(delay==1 && pkt->dts == pkt->pts && pkt->dts != AV_NOPTS_VALUE && presentation_delayed){
1070 av_log(s, AV_LOG_DEBUG, "invalid dts/pts combination %"PRIi64"\n", pkt->dts);
1071 if(strcmp(s->iformat->name, "mov,mp4,m4a,3gp,3g2,mj2")) // otherwise we discard correct timestamps for vc1-wmapro.ism
1072 pkt->dts= AV_NOPTS_VALUE;
1075 if (pkt->duration == 0) {
1076 ff_compute_frame_duration(&num, &den, st, pc, pkt);
1078 pkt->duration = av_rescale_rnd(1, num * (int64_t)st->time_base.den, den * (int64_t)st->time_base.num, AV_ROUND_DOWN);
1081 if(pkt->duration != 0 && (s->packet_buffer || s->parse_queue))
1082 update_initial_durations(s, st, pkt->stream_index, pkt->duration);
1084 /* correct timestamps with byte offset if demuxers only have timestamps
1085 on packet boundaries */
1086 if(pc && st->need_parsing == AVSTREAM_PARSE_TIMESTAMPS && pkt->size){
1087 /* this will estimate bitrate based on this frame's duration and size */
1088 offset = av_rescale(pc->offset, pkt->duration, pkt->size);
1089 if(pkt->pts != AV_NOPTS_VALUE)
1091 if(pkt->dts != AV_NOPTS_VALUE)
1095 /* This may be redundant, but it should not hurt. */
1096 if(pkt->dts != AV_NOPTS_VALUE && pkt->pts != AV_NOPTS_VALUE && pkt->pts > pkt->dts)
1097 presentation_delayed = 1;
1099 av_dlog(NULL, "IN delayed:%d pts:%s, dts:%s cur_dts:%s st:%d pc:%p duration:%d\n",
1100 presentation_delayed, av_ts2str(pkt->pts), av_ts2str(pkt->dts), av_ts2str(st->cur_dts), pkt->stream_index, pc, pkt->duration);
1101 /* interpolate PTS and DTS if they are not present */
1102 //We skip H264 currently because delay and has_b_frames are not reliably set
1103 if((delay==0 || (delay==1 && pc)) && st->codec->codec_id != AV_CODEC_ID_H264){
1104 if (presentation_delayed) {
1105 /* DTS = decompression timestamp */
1106 /* PTS = presentation timestamp */
1107 if (pkt->dts == AV_NOPTS_VALUE)
1108 pkt->dts = st->last_IP_pts;
1109 update_initial_timestamps(s, pkt->stream_index, pkt->dts, pkt->pts, pkt);
1110 if (pkt->dts == AV_NOPTS_VALUE)
1111 pkt->dts = st->cur_dts;
1113 /* this is tricky: the dts must be incremented by the duration
1114 of the frame we are displaying, i.e. the last I- or P-frame */
1115 if (st->last_IP_duration == 0)
1116 st->last_IP_duration = pkt->duration;
1117 if(pkt->dts != AV_NOPTS_VALUE)
1118 st->cur_dts = pkt->dts + st->last_IP_duration;
1119 st->last_IP_duration = pkt->duration;
1120 st->last_IP_pts= pkt->pts;
1121 /* cannot compute PTS if not present (we can compute it only
1122 by knowing the future */
1123 } else if (pkt->pts != AV_NOPTS_VALUE ||
1124 pkt->dts != AV_NOPTS_VALUE ||
1126 int duration = pkt->duration;
1128 /* presentation is not delayed : PTS and DTS are the same */
1129 if (pkt->pts == AV_NOPTS_VALUE)
1130 pkt->pts = pkt->dts;
1131 update_initial_timestamps(s, pkt->stream_index, pkt->pts,
1133 if (pkt->pts == AV_NOPTS_VALUE)
1134 pkt->pts = st->cur_dts;
1135 pkt->dts = pkt->pts;
1136 if (pkt->pts != AV_NOPTS_VALUE)
1137 st->cur_dts = pkt->pts + duration;
1141 if(pkt->pts != AV_NOPTS_VALUE && delay <= MAX_REORDER_DELAY && has_decode_delay_been_guessed(st)){
1142 st->pts_buffer[0]= pkt->pts;
1143 for(i=0; i<delay && st->pts_buffer[i] > st->pts_buffer[i+1]; i++)
1144 FFSWAP(int64_t, st->pts_buffer[i], st->pts_buffer[i+1]);
1145 if(pkt->dts == AV_NOPTS_VALUE)
1146 pkt->dts= st->pts_buffer[0];
1148 if(st->codec->codec_id == AV_CODEC_ID_H264){ // we skipped it above so we try here
1149 update_initial_timestamps(s, pkt->stream_index, pkt->dts, pkt->pts, pkt); // this should happen on the first packet
1151 if(pkt->dts > st->cur_dts)
1152 st->cur_dts = pkt->dts;
1154 av_dlog(NULL, "OUTdelayed:%d/%d pts:%s, dts:%s cur_dts:%s\n",
1155 presentation_delayed, delay, av_ts2str(pkt->pts), av_ts2str(pkt->dts), av_ts2str(st->cur_dts));
1158 if (is_intra_only(st->codec))
1159 pkt->flags |= AV_PKT_FLAG_KEY;
1161 pkt->convergence_duration = pc->convergence_duration;
1164 static void free_packet_buffer(AVPacketList **pkt_buf, AVPacketList **pkt_buf_end)
1167 AVPacketList *pktl = *pkt_buf;
1168 *pkt_buf = pktl->next;
1169 av_free_packet(&pktl->pkt);
1172 *pkt_buf_end = NULL;
1176 * Parse a packet, add all split parts to parse_queue
1178 * @param pkt packet to parse, NULL when flushing the parser at end of stream
1180 static int parse_packet(AVFormatContext *s, AVPacket *pkt, int stream_index)
1182 AVPacket out_pkt = { 0 }, flush_pkt = { 0 };
1183 AVStream *st = s->streams[stream_index];
1184 uint8_t *data = pkt ? pkt->data : NULL;
1185 int size = pkt ? pkt->size : 0;
1186 int ret = 0, got_output = 0;
1189 av_init_packet(&flush_pkt);
1192 } else if (!size && st->parser->flags & PARSER_FLAG_COMPLETE_FRAMES) {
1193 // preserve 0-size sync packets
1194 compute_pkt_fields(s, st, st->parser, pkt);
1197 while (size > 0 || (pkt == &flush_pkt && got_output)) {
1200 av_init_packet(&out_pkt);
1201 len = av_parser_parse2(st->parser, st->codec,
1202 &out_pkt.data, &out_pkt.size, data, size,
1203 pkt->pts, pkt->dts, pkt->pos);
1205 pkt->pts = pkt->dts = AV_NOPTS_VALUE;
1207 /* increment read pointer */
1211 got_output = !!out_pkt.size;
1216 if (pkt->side_data) {
1217 out_pkt.side_data = pkt->side_data;
1218 out_pkt.side_data_elems = pkt->side_data_elems;
1219 pkt->side_data = NULL;
1220 pkt->side_data_elems = 0;
1223 /* set the duration */
1224 out_pkt.duration = 0;
1225 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1226 if (st->codec->sample_rate > 0) {
1227 out_pkt.duration = av_rescale_q_rnd(st->parser->duration,
1228 (AVRational){ 1, st->codec->sample_rate },
1232 } else if (st->codec->time_base.num != 0 &&
1233 st->codec->time_base.den != 0) {
1234 out_pkt.duration = av_rescale_q_rnd(st->parser->duration,
1235 st->codec->time_base,
1240 out_pkt.stream_index = st->index;
1241 out_pkt.pts = st->parser->pts;
1242 out_pkt.dts = st->parser->dts;
1243 out_pkt.pos = st->parser->pos;
1245 if(st->need_parsing == AVSTREAM_PARSE_FULL_RAW)
1246 out_pkt.pos = st->parser->frame_offset;
1248 if (st->parser->key_frame == 1 ||
1249 (st->parser->key_frame == -1 &&
1250 st->parser->pict_type == AV_PICTURE_TYPE_I))
1251 out_pkt.flags |= AV_PKT_FLAG_KEY;
1253 if(st->parser->key_frame == -1 && st->parser->pict_type==AV_PICTURE_TYPE_NONE && (pkt->flags&AV_PKT_FLAG_KEY))
1254 out_pkt.flags |= AV_PKT_FLAG_KEY;
1256 compute_pkt_fields(s, st, st->parser, &out_pkt);
1258 if (out_pkt.data == pkt->data && out_pkt.size == pkt->size) {
1259 out_pkt.buf = pkt->buf;
1261 #if FF_API_DESTRUCT_PACKET
1262 FF_DISABLE_DEPRECATION_WARNINGS
1263 out_pkt.destruct = pkt->destruct;
1264 pkt->destruct = NULL;
1265 FF_ENABLE_DEPRECATION_WARNINGS
1268 if ((ret = av_dup_packet(&out_pkt)) < 0)
1271 if (!add_to_pktbuf(&s->parse_queue, &out_pkt, &s->parse_queue_end)) {
1272 av_free_packet(&out_pkt);
1273 ret = AVERROR(ENOMEM);
1279 /* end of the stream => close and free the parser */
1280 if (pkt == &flush_pkt) {
1281 av_parser_close(st->parser);
1286 av_free_packet(pkt);
1290 static int read_from_packet_buffer(AVPacketList **pkt_buffer,
1291 AVPacketList **pkt_buffer_end,
1295 av_assert0(*pkt_buffer);
1298 *pkt_buffer = pktl->next;
1300 *pkt_buffer_end = NULL;
1305 static int read_frame_internal(AVFormatContext *s, AVPacket *pkt)
1307 int ret = 0, i, got_packet = 0;
1309 av_init_packet(pkt);
1311 while (!got_packet && !s->parse_queue) {
1315 /* read next packet */
1316 ret = ff_read_packet(s, &cur_pkt);
1318 if (ret == AVERROR(EAGAIN))
1320 /* flush the parsers */
1321 for(i = 0; i < s->nb_streams; i++) {
1323 if (st->parser && st->need_parsing)
1324 parse_packet(s, NULL, st->index);
1326 /* all remaining packets are now in parse_queue =>
1327 * really terminate parsing */
1331 st = s->streams[cur_pkt.stream_index];
1333 if (cur_pkt.pts != AV_NOPTS_VALUE &&
1334 cur_pkt.dts != AV_NOPTS_VALUE &&
1335 cur_pkt.pts < cur_pkt.dts) {
1336 av_log(s, AV_LOG_WARNING, "Invalid timestamps stream=%d, pts=%s, dts=%s, size=%d\n",
1337 cur_pkt.stream_index,
1338 av_ts2str(cur_pkt.pts),
1339 av_ts2str(cur_pkt.dts),
1342 if (s->debug & FF_FDEBUG_TS)
1343 av_log(s, AV_LOG_DEBUG, "ff_read_packet stream=%d, pts=%s, dts=%s, size=%d, duration=%d, flags=%d\n",
1344 cur_pkt.stream_index,
1345 av_ts2str(cur_pkt.pts),
1346 av_ts2str(cur_pkt.dts),
1351 if (st->need_parsing && !st->parser && !(s->flags & AVFMT_FLAG_NOPARSE)) {
1352 st->parser = av_parser_init(st->codec->codec_id);
1354 av_log(s, AV_LOG_VERBOSE, "parser not found for codec "
1355 "%s, packets or times may be invalid.\n",
1356 avcodec_get_name(st->codec->codec_id));
1357 /* no parser available: just output the raw packets */
1358 st->need_parsing = AVSTREAM_PARSE_NONE;
1359 } else if(st->need_parsing == AVSTREAM_PARSE_HEADERS) {
1360 st->parser->flags |= PARSER_FLAG_COMPLETE_FRAMES;
1361 } else if(st->need_parsing == AVSTREAM_PARSE_FULL_ONCE) {
1362 st->parser->flags |= PARSER_FLAG_ONCE;
1363 } else if(st->need_parsing == AVSTREAM_PARSE_FULL_RAW) {
1364 st->parser->flags |= PARSER_FLAG_USE_CODEC_TS;
1368 if (!st->need_parsing || !st->parser) {
1369 /* no parsing needed: we just output the packet as is */
1371 compute_pkt_fields(s, st, NULL, pkt);
1372 if ((s->iformat->flags & AVFMT_GENERIC_INDEX) &&
1373 (pkt->flags & AV_PKT_FLAG_KEY) && pkt->dts != AV_NOPTS_VALUE) {
1374 ff_reduce_index(s, st->index);
1375 av_add_index_entry(st, pkt->pos, pkt->dts, 0, 0, AVINDEX_KEYFRAME);
1378 } else if (st->discard < AVDISCARD_ALL) {
1379 if ((ret = parse_packet(s, &cur_pkt, cur_pkt.stream_index)) < 0)
1383 av_free_packet(&cur_pkt);
1385 if (pkt->flags & AV_PKT_FLAG_KEY)
1386 st->skip_to_keyframe = 0;
1387 if (st->skip_to_keyframe) {
1388 av_free_packet(&cur_pkt);
1396 if (!got_packet && s->parse_queue)
1397 ret = read_from_packet_buffer(&s->parse_queue, &s->parse_queue_end, pkt);
1399 if(s->debug & FF_FDEBUG_TS)
1400 av_log(s, AV_LOG_DEBUG, "read_frame_internal stream=%d, pts=%s, dts=%s, size=%d, duration=%d, flags=%d\n",
1402 av_ts2str(pkt->pts),
1403 av_ts2str(pkt->dts),
1411 int av_read_frame(AVFormatContext *s, AVPacket *pkt)
1413 const int genpts = s->flags & AVFMT_FLAG_GENPTS;
1419 ret = s->packet_buffer ?
1420 read_from_packet_buffer(&s->packet_buffer, &s->packet_buffer_end, pkt) :
1421 read_frame_internal(s, pkt);
1428 AVPacketList *pktl = s->packet_buffer;
1431 AVPacket *next_pkt = &pktl->pkt;
1433 if (next_pkt->dts != AV_NOPTS_VALUE) {
1434 int wrap_bits = s->streams[next_pkt->stream_index]->pts_wrap_bits;
1435 // last dts seen for this stream. if any of packets following
1436 // current one had no dts, we will set this to AV_NOPTS_VALUE.
1437 int64_t last_dts = next_pkt->dts;
1438 while (pktl && next_pkt->pts == AV_NOPTS_VALUE) {
1439 if (pktl->pkt.stream_index == next_pkt->stream_index &&
1440 (av_compare_mod(next_pkt->dts, pktl->pkt.dts, 2LL << (wrap_bits - 1)) < 0)) {
1441 if (av_compare_mod(pktl->pkt.pts, pktl->pkt.dts, 2LL << (wrap_bits - 1))) { //not b frame
1442 next_pkt->pts = pktl->pkt.dts;
1444 if (last_dts != AV_NOPTS_VALUE) {
1445 // Once last dts was set to AV_NOPTS_VALUE, we don't change it.
1446 last_dts = pktl->pkt.dts;
1451 if (eof && next_pkt->pts == AV_NOPTS_VALUE && last_dts != AV_NOPTS_VALUE) {
1452 // Fixing the last reference frame had none pts issue (For MXF etc).
1453 // We only do this when
1455 // 2. we are not able to resolve a pts value for current packet.
1456 // 3. the packets for this stream at the end of the files had valid dts.
1457 next_pkt->pts = last_dts + next_pkt->duration;
1459 pktl = s->packet_buffer;
1462 /* read packet from packet buffer, if there is data */
1463 if (!(next_pkt->pts == AV_NOPTS_VALUE &&
1464 next_pkt->dts != AV_NOPTS_VALUE && !eof)) {
1465 ret = read_from_packet_buffer(&s->packet_buffer,
1466 &s->packet_buffer_end, pkt);
1471 ret = read_frame_internal(s, pkt);
1473 if (pktl && ret != AVERROR(EAGAIN)) {
1480 if (av_dup_packet(add_to_pktbuf(&s->packet_buffer, pkt,
1481 &s->packet_buffer_end)) < 0)
1482 return AVERROR(ENOMEM);
1487 st = s->streams[pkt->stream_index];
1488 if (st->skip_samples) {
1489 uint8_t *p = av_packet_new_side_data(pkt, AV_PKT_DATA_SKIP_SAMPLES, 10);
1491 AV_WL32(p, st->skip_samples);
1492 av_log(s, AV_LOG_DEBUG, "demuxer injecting skip %d\n", st->skip_samples);
1494 st->skip_samples = 0;
1497 if ((s->iformat->flags & AVFMT_GENERIC_INDEX) && pkt->flags & AV_PKT_FLAG_KEY) {
1498 ff_reduce_index(s, st->index);
1499 av_add_index_entry(st, pkt->pos, pkt->dts, 0, 0, AVINDEX_KEYFRAME);
1502 if (is_relative(pkt->dts))
1503 pkt->dts -= RELATIVE_TS_BASE;
1504 if (is_relative(pkt->pts))
1505 pkt->pts -= RELATIVE_TS_BASE;
1510 /* XXX: suppress the packet queue */
1511 static void flush_packet_queue(AVFormatContext *s)
1513 free_packet_buffer(&s->parse_queue, &s->parse_queue_end);
1514 free_packet_buffer(&s->packet_buffer, &s->packet_buffer_end);
1515 free_packet_buffer(&s->raw_packet_buffer, &s->raw_packet_buffer_end);
1517 s->raw_packet_buffer_remaining_size = RAW_PACKET_BUFFER_SIZE;
1520 /*******************************************************/
1523 int av_find_default_stream_index(AVFormatContext *s)
1525 int first_audio_index = -1;
1529 if (s->nb_streams <= 0)
1531 for(i = 0; i < s->nb_streams; i++) {
1533 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1534 !(st->disposition & AV_DISPOSITION_ATTACHED_PIC)) {
1537 if (first_audio_index < 0 && st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1538 first_audio_index = i;
1540 return first_audio_index >= 0 ? first_audio_index : 0;
1544 * Flush the frame reader.
1546 void ff_read_frame_flush(AVFormatContext *s)
1551 flush_packet_queue(s);
1553 /* for each stream, reset read state */
1554 for(i = 0; i < s->nb_streams; i++) {
1558 av_parser_close(st->parser);
1561 st->last_IP_pts = AV_NOPTS_VALUE;
1562 if(st->first_dts == AV_NOPTS_VALUE) st->cur_dts = RELATIVE_TS_BASE;
1563 else st->cur_dts = AV_NOPTS_VALUE; /* we set the current DTS to an unspecified origin */
1565 st->probe_packets = MAX_PROBE_PACKETS;
1567 for(j=0; j<MAX_REORDER_DELAY+1; j++)
1568 st->pts_buffer[j]= AV_NOPTS_VALUE;
1572 void ff_update_cur_dts(AVFormatContext *s, AVStream *ref_st, int64_t timestamp)
1576 for(i = 0; i < s->nb_streams; i++) {
1577 AVStream *st = s->streams[i];
1579 st->cur_dts = av_rescale(timestamp,
1580 st->time_base.den * (int64_t)ref_st->time_base.num,
1581 st->time_base.num * (int64_t)ref_st->time_base.den);
1585 void ff_reduce_index(AVFormatContext *s, int stream_index)
1587 AVStream *st= s->streams[stream_index];
1588 unsigned int max_entries= s->max_index_size / sizeof(AVIndexEntry);
1590 if((unsigned)st->nb_index_entries >= max_entries){
1592 for(i=0; 2*i<st->nb_index_entries; i++)
1593 st->index_entries[i]= st->index_entries[2*i];
1594 st->nb_index_entries= i;
1598 int ff_add_index_entry(AVIndexEntry **index_entries,
1599 int *nb_index_entries,
1600 unsigned int *index_entries_allocated_size,
1601 int64_t pos, int64_t timestamp, int size, int distance, int flags)
1603 AVIndexEntry *entries, *ie;
1606 if((unsigned)*nb_index_entries + 1 >= UINT_MAX / sizeof(AVIndexEntry))
1609 if(timestamp == AV_NOPTS_VALUE)
1610 return AVERROR(EINVAL);
1612 if (size < 0 || size > 0x3FFFFFFF)
1613 return AVERROR(EINVAL);
1615 if (is_relative(timestamp)) //FIXME this maintains previous behavior but we should shift by the correct offset once known
1616 timestamp -= RELATIVE_TS_BASE;
1618 entries = av_fast_realloc(*index_entries,
1619 index_entries_allocated_size,
1620 (*nb_index_entries + 1) *
1621 sizeof(AVIndexEntry));
1625 *index_entries= entries;
1627 index= ff_index_search_timestamp(*index_entries, *nb_index_entries, timestamp, AVSEEK_FLAG_ANY);
1630 index= (*nb_index_entries)++;
1631 ie= &entries[index];
1632 av_assert0(index==0 || ie[-1].timestamp < timestamp);
1634 ie= &entries[index];
1635 if(ie->timestamp != timestamp){
1636 if(ie->timestamp <= timestamp)
1638 memmove(entries + index + 1, entries + index, sizeof(AVIndexEntry)*(*nb_index_entries - index));
1639 (*nb_index_entries)++;
1640 }else if(ie->pos == pos && distance < ie->min_distance) //do not reduce the distance
1641 distance= ie->min_distance;
1645 ie->timestamp = timestamp;
1646 ie->min_distance= distance;
1653 int av_add_index_entry(AVStream *st,
1654 int64_t pos, int64_t timestamp, int size, int distance, int flags)
1656 timestamp = wrap_timestamp(st, timestamp);
1657 return ff_add_index_entry(&st->index_entries, &st->nb_index_entries,
1658 &st->index_entries_allocated_size, pos,
1659 timestamp, size, distance, flags);
1662 int ff_index_search_timestamp(const AVIndexEntry *entries, int nb_entries,
1663 int64_t wanted_timestamp, int flags)
1671 //optimize appending index entries at the end
1672 if(b && entries[b-1].timestamp < wanted_timestamp)
1677 timestamp = entries[m].timestamp;
1678 if(timestamp >= wanted_timestamp)
1680 if(timestamp <= wanted_timestamp)
1683 m= (flags & AVSEEK_FLAG_BACKWARD) ? a : b;
1685 if(!(flags & AVSEEK_FLAG_ANY)){
1686 while(m>=0 && m<nb_entries && !(entries[m].flags & AVINDEX_KEYFRAME)){
1687 m += (flags & AVSEEK_FLAG_BACKWARD) ? -1 : 1;
1696 int av_index_search_timestamp(AVStream *st, int64_t wanted_timestamp,
1699 return ff_index_search_timestamp(st->index_entries, st->nb_index_entries,
1700 wanted_timestamp, flags);
1703 static int64_t ff_read_timestamp(AVFormatContext *s, int stream_index, int64_t *ppos, int64_t pos_limit,
1704 int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t ))
1706 int64_t ts = read_timestamp(s, stream_index, ppos, pos_limit);
1707 if (stream_index >= 0)
1708 ts = wrap_timestamp(s->streams[stream_index], ts);
1712 int ff_seek_frame_binary(AVFormatContext *s, int stream_index, int64_t target_ts, int flags)
1714 AVInputFormat *avif= s->iformat;
1715 int64_t av_uninit(pos_min), av_uninit(pos_max), pos, pos_limit;
1716 int64_t ts_min, ts_max, ts;
1721 if (stream_index < 0)
1724 av_dlog(s, "read_seek: %d %s\n", stream_index, av_ts2str(target_ts));
1727 ts_min= AV_NOPTS_VALUE;
1728 pos_limit= -1; //gcc falsely says it may be uninitialized
1730 st= s->streams[stream_index];
1731 if(st->index_entries){
1734 index= av_index_search_timestamp(st, target_ts, flags | AVSEEK_FLAG_BACKWARD); //FIXME whole func must be checked for non-keyframe entries in index case, especially read_timestamp()
1735 index= FFMAX(index, 0);
1736 e= &st->index_entries[index];
1738 if(e->timestamp <= target_ts || e->pos == e->min_distance){
1740 ts_min= e->timestamp;
1741 av_dlog(s, "using cached pos_min=0x%"PRIx64" dts_min=%s\n",
1742 pos_min, av_ts2str(ts_min));
1744 av_assert1(index==0);
1747 index= av_index_search_timestamp(st, target_ts, flags & ~AVSEEK_FLAG_BACKWARD);
1748 av_assert0(index < st->nb_index_entries);
1750 e= &st->index_entries[index];
1751 av_assert1(e->timestamp >= target_ts);
1753 ts_max= e->timestamp;
1754 pos_limit= pos_max - e->min_distance;
1755 av_dlog(s, "using cached pos_max=0x%"PRIx64" pos_limit=0x%"PRIx64" dts_max=%s\n",
1756 pos_max, pos_limit, av_ts2str(ts_max));
1760 pos= ff_gen_search(s, stream_index, target_ts, pos_min, pos_max, pos_limit, ts_min, ts_max, flags, &ts, avif->read_timestamp);
1765 if ((ret = avio_seek(s->pb, pos, SEEK_SET)) < 0)
1768 ff_read_frame_flush(s);
1769 ff_update_cur_dts(s, st, ts);
1774 int ff_find_last_ts(AVFormatContext *s, int stream_index, int64_t *ts, int64_t *pos,
1775 int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t ))
1778 int64_t limit, ts_max;
1779 int64_t filesize = avio_size(s->pb);
1780 int64_t pos_max = filesize - 1;
1783 pos_max = FFMAX(0, (pos_max) - step);
1784 ts_max = ff_read_timestamp(s, stream_index, &pos_max, limit, read_timestamp);
1786 }while(ts_max == AV_NOPTS_VALUE && 2*limit > step);
1787 if (ts_max == AV_NOPTS_VALUE)
1791 int64_t tmp_pos = pos_max + 1;
1792 int64_t tmp_ts = ff_read_timestamp(s, stream_index, &tmp_pos, INT64_MAX, read_timestamp);
1793 if(tmp_ts == AV_NOPTS_VALUE)
1795 av_assert0(tmp_pos > pos_max);
1798 if(tmp_pos >= filesize)
1810 int64_t ff_gen_search(AVFormatContext *s, int stream_index, int64_t target_ts,
1811 int64_t pos_min, int64_t pos_max, int64_t pos_limit,
1812 int64_t ts_min, int64_t ts_max, int flags, int64_t *ts_ret,
1813 int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t ))
1820 av_dlog(s, "gen_seek: %d %s\n", stream_index, av_ts2str(target_ts));
1822 if(ts_min == AV_NOPTS_VALUE){
1823 pos_min = s->data_offset;
1824 ts_min = ff_read_timestamp(s, stream_index, &pos_min, INT64_MAX, read_timestamp);
1825 if (ts_min == AV_NOPTS_VALUE)
1829 if(ts_min >= target_ts){
1834 if(ts_max == AV_NOPTS_VALUE){
1835 if ((ret = ff_find_last_ts(s, stream_index, &ts_max, &pos_max, read_timestamp)) < 0)
1840 if(ts_max <= target_ts){
1845 if(ts_min > ts_max){
1847 }else if(ts_min == ts_max){
1852 while (pos_min < pos_limit) {
1853 av_dlog(s, "pos_min=0x%"PRIx64" pos_max=0x%"PRIx64" dts_min=%s dts_max=%s\n",
1854 pos_min, pos_max, av_ts2str(ts_min), av_ts2str(ts_max));
1855 assert(pos_limit <= pos_max);
1858 int64_t approximate_keyframe_distance= pos_max - pos_limit;
1859 // interpolate position (better than dichotomy)
1860 pos = av_rescale(target_ts - ts_min, pos_max - pos_min, ts_max - ts_min)
1861 + pos_min - approximate_keyframe_distance;
1862 }else if(no_change==1){
1863 // bisection, if interpolation failed to change min or max pos last time
1864 pos = (pos_min + pos_limit)>>1;
1866 /* linear search if bisection failed, can only happen if there
1867 are very few or no keyframes between min/max */
1872 else if(pos > pos_limit)
1876 ts = ff_read_timestamp(s, stream_index, &pos, INT64_MAX, read_timestamp); //may pass pos_limit instead of -1
1881 av_dlog(s, "%"PRId64" %"PRId64" %"PRId64" / %s %s %s target:%s limit:%"PRId64" start:%"PRId64" noc:%d\n",
1882 pos_min, pos, pos_max,
1883 av_ts2str(ts_min), av_ts2str(ts), av_ts2str(ts_max), av_ts2str(target_ts),
1884 pos_limit, start_pos, no_change);
1885 if(ts == AV_NOPTS_VALUE){
1886 av_log(s, AV_LOG_ERROR, "read_timestamp() failed in the middle\n");
1889 assert(ts != AV_NOPTS_VALUE);
1890 if (target_ts <= ts) {
1891 pos_limit = start_pos - 1;
1895 if (target_ts >= ts) {
1901 pos = (flags & AVSEEK_FLAG_BACKWARD) ? pos_min : pos_max;
1902 ts = (flags & AVSEEK_FLAG_BACKWARD) ? ts_min : ts_max;
1905 ts_min = ff_read_timestamp(s, stream_index, &pos_min, INT64_MAX, read_timestamp);
1907 ts_max = ff_read_timestamp(s, stream_index, &pos_min, INT64_MAX, read_timestamp);
1908 av_dlog(s, "pos=0x%"PRIx64" %s<=%s<=%s\n",
1909 pos, av_ts2str(ts_min), av_ts2str(target_ts), av_ts2str(ts_max));
1915 static int seek_frame_byte(AVFormatContext *s, int stream_index, int64_t pos, int flags){
1916 int64_t pos_min, pos_max;
1918 pos_min = s->data_offset;
1919 pos_max = avio_size(s->pb) - 1;
1921 if (pos < pos_min) pos= pos_min;
1922 else if(pos > pos_max) pos= pos_max;
1924 avio_seek(s->pb, pos, SEEK_SET);
1926 s->io_repositioned = 1;
1931 static int seek_frame_generic(AVFormatContext *s,
1932 int stream_index, int64_t timestamp, int flags)
1939 st = s->streams[stream_index];
1941 index = av_index_search_timestamp(st, timestamp, flags);
1943 if(index < 0 && st->nb_index_entries && timestamp < st->index_entries[0].timestamp)
1946 if(index < 0 || index==st->nb_index_entries-1){
1950 if(st->nb_index_entries){
1951 av_assert0(st->index_entries);
1952 ie= &st->index_entries[st->nb_index_entries-1];
1953 if ((ret = avio_seek(s->pb, ie->pos, SEEK_SET)) < 0)
1955 ff_update_cur_dts(s, st, ie->timestamp);
1957 if ((ret = avio_seek(s->pb, s->data_offset, SEEK_SET)) < 0)
1963 read_status = av_read_frame(s, &pkt);
1964 } while (read_status == AVERROR(EAGAIN));
1965 if (read_status < 0)
1967 av_free_packet(&pkt);
1968 if(stream_index == pkt.stream_index && pkt.dts > timestamp){
1969 if(pkt.flags & AV_PKT_FLAG_KEY)
1971 if(nonkey++ > 1000 && st->codec->codec_id != AV_CODEC_ID_CDGRAPHICS){
1972 av_log(s, AV_LOG_ERROR,"seek_frame_generic failed as this stream seems to contain no keyframes after the target timestamp, %d non keyframes found\n", nonkey);
1977 index = av_index_search_timestamp(st, timestamp, flags);
1982 ff_read_frame_flush(s);
1983 if (s->iformat->read_seek){
1984 if(s->iformat->read_seek(s, stream_index, timestamp, flags) >= 0)
1987 ie = &st->index_entries[index];
1988 if ((ret = avio_seek(s->pb, ie->pos, SEEK_SET)) < 0)
1990 ff_update_cur_dts(s, st, ie->timestamp);
1995 static int seek_frame_internal(AVFormatContext *s, int stream_index,
1996 int64_t timestamp, int flags)
2001 if (flags & AVSEEK_FLAG_BYTE) {
2002 if (s->iformat->flags & AVFMT_NO_BYTE_SEEK)
2004 ff_read_frame_flush(s);
2005 return seek_frame_byte(s, stream_index, timestamp, flags);
2008 if(stream_index < 0){
2009 stream_index= av_find_default_stream_index(s);
2010 if(stream_index < 0)
2013 st= s->streams[stream_index];
2014 /* timestamp for default must be expressed in AV_TIME_BASE units */
2015 timestamp = av_rescale(timestamp, st->time_base.den, AV_TIME_BASE * (int64_t)st->time_base.num);
2018 /* first, we try the format specific seek */
2019 if (s->iformat->read_seek) {
2020 ff_read_frame_flush(s);
2021 ret = s->iformat->read_seek(s, stream_index, timestamp, flags);
2028 if (s->iformat->read_timestamp && !(s->iformat->flags & AVFMT_NOBINSEARCH)) {
2029 ff_read_frame_flush(s);
2030 return ff_seek_frame_binary(s, stream_index, timestamp, flags);
2031 } else if (!(s->iformat->flags & AVFMT_NOGENSEARCH)) {
2032 ff_read_frame_flush(s);
2033 return seek_frame_generic(s, stream_index, timestamp, flags);
2039 int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
2043 if (s->iformat->read_seek2 && !s->iformat->read_seek) {
2044 int64_t min_ts = INT64_MIN, max_ts = INT64_MAX;
2045 if ((flags & AVSEEK_FLAG_BACKWARD))
2049 return avformat_seek_file(s, stream_index, min_ts, timestamp, max_ts,
2050 flags & ~AVSEEK_FLAG_BACKWARD);
2053 ret = seek_frame_internal(s, stream_index, timestamp, flags);
2056 ret = avformat_queue_attached_pictures(s);
2061 int avformat_seek_file(AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags)
2063 if(min_ts > ts || max_ts < ts)
2065 if (stream_index < -1 || stream_index >= (int)s->nb_streams)
2066 return AVERROR(EINVAL);
2069 flags |= AVSEEK_FLAG_ANY;
2070 flags &= ~AVSEEK_FLAG_BACKWARD;
2072 if (s->iformat->read_seek2) {
2074 ff_read_frame_flush(s);
2076 if (stream_index == -1 && s->nb_streams == 1) {
2077 AVRational time_base = s->streams[0]->time_base;
2078 ts = av_rescale_q(ts, AV_TIME_BASE_Q, time_base);
2079 min_ts = av_rescale_rnd(min_ts, time_base.den,
2080 time_base.num * (int64_t)AV_TIME_BASE,
2081 AV_ROUND_UP | AV_ROUND_PASS_MINMAX);
2082 max_ts = av_rescale_rnd(max_ts, time_base.den,
2083 time_base.num * (int64_t)AV_TIME_BASE,
2084 AV_ROUND_DOWN | AV_ROUND_PASS_MINMAX);
2087 ret = s->iformat->read_seek2(s, stream_index, min_ts, ts, max_ts, flags);
2090 ret = avformat_queue_attached_pictures(s);
2094 if(s->iformat->read_timestamp){
2095 //try to seek via read_timestamp()
2098 // Fall back on old API if new is not implemented but old is.
2099 // Note the old API has somewhat different semantics.
2100 if (s->iformat->read_seek || 1) {
2101 int dir = (ts - (uint64_t)min_ts > (uint64_t)max_ts - ts ? AVSEEK_FLAG_BACKWARD : 0);
2102 int ret = av_seek_frame(s, stream_index, ts, flags | dir);
2103 if (ret<0 && ts != min_ts && max_ts != ts) {
2104 ret = av_seek_frame(s, stream_index, dir ? max_ts : min_ts, flags | dir);
2106 ret = av_seek_frame(s, stream_index, ts, flags | (dir^AVSEEK_FLAG_BACKWARD));
2111 // try some generic seek like seek_frame_generic() but with new ts semantics
2112 return -1; //unreachable
2115 /*******************************************************/
2118 * Return TRUE if the stream has accurate duration in any stream.
2120 * @return TRUE if the stream has accurate duration for at least one component.
2122 static int has_duration(AVFormatContext *ic)
2127 for(i = 0;i < ic->nb_streams; i++) {
2128 st = ic->streams[i];
2129 if (st->duration != AV_NOPTS_VALUE)
2132 if (ic->duration != AV_NOPTS_VALUE)
2138 * Estimate the stream timings from the one of each components.
2140 * Also computes the global bitrate if possible.
2142 static void update_stream_timings(AVFormatContext *ic)
2144 int64_t start_time, start_time1, start_time_text, end_time, end_time1;
2145 int64_t duration, duration1, filesize;
2150 start_time = INT64_MAX;
2151 start_time_text = INT64_MAX;
2152 end_time = INT64_MIN;
2153 duration = INT64_MIN;
2154 for(i = 0;i < ic->nb_streams; i++) {
2155 st = ic->streams[i];
2156 if (st->start_time != AV_NOPTS_VALUE && st->time_base.den) {
2157 start_time1= av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q);
2158 if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE || st->codec->codec_type == AVMEDIA_TYPE_DATA) {
2159 if (start_time1 < start_time_text)
2160 start_time_text = start_time1;
2162 start_time = FFMIN(start_time, start_time1);
2163 end_time1 = AV_NOPTS_VALUE;
2164 if (st->duration != AV_NOPTS_VALUE) {
2165 end_time1 = start_time1
2166 + av_rescale_q(st->duration, st->time_base, AV_TIME_BASE_Q);
2167 end_time = FFMAX(end_time, end_time1);
2169 for(p = NULL; (p = av_find_program_from_stream(ic, p, i)); ){
2170 if(p->start_time == AV_NOPTS_VALUE || p->start_time > start_time1)
2171 p->start_time = start_time1;
2172 if(p->end_time < end_time1)
2173 p->end_time = end_time1;
2176 if (st->duration != AV_NOPTS_VALUE) {
2177 duration1 = av_rescale_q(st->duration, st->time_base, AV_TIME_BASE_Q);
2178 duration = FFMAX(duration, duration1);
2181 if (start_time == INT64_MAX || (start_time > start_time_text && start_time - start_time_text < AV_TIME_BASE))
2182 start_time = start_time_text;
2183 else if(start_time > start_time_text)
2184 av_log(ic, AV_LOG_VERBOSE, "Ignoring outlier non primary stream starttime %f\n", start_time_text / (float)AV_TIME_BASE);
2186 if (start_time != INT64_MAX) {
2187 ic->start_time = start_time;
2188 if (end_time != INT64_MIN) {
2189 if (ic->nb_programs) {
2190 for (i=0; i<ic->nb_programs; i++) {
2191 p = ic->programs[i];
2192 if(p->start_time != AV_NOPTS_VALUE && p->end_time > p->start_time)
2193 duration = FFMAX(duration, p->end_time - p->start_time);
2196 duration = FFMAX(duration, end_time - start_time);
2199 if (duration != INT64_MIN && duration > 0 && ic->duration == AV_NOPTS_VALUE) {
2200 ic->duration = duration;
2202 if (ic->pb && (filesize = avio_size(ic->pb)) > 0 && ic->duration != AV_NOPTS_VALUE) {
2203 /* compute the bitrate */
2204 double bitrate = (double)filesize * 8.0 * AV_TIME_BASE /
2205 (double)ic->duration;
2206 if (bitrate >= 0 && bitrate <= INT_MAX)
2207 ic->bit_rate = bitrate;
2211 static void fill_all_stream_timings(AVFormatContext *ic)
2216 update_stream_timings(ic);
2217 for(i = 0;i < ic->nb_streams; i++) {
2218 st = ic->streams[i];
2219 if (st->start_time == AV_NOPTS_VALUE) {
2220 if(ic->start_time != AV_NOPTS_VALUE)
2221 st->start_time = av_rescale_q(ic->start_time, AV_TIME_BASE_Q, st->time_base);
2222 if(ic->duration != AV_NOPTS_VALUE)
2223 st->duration = av_rescale_q(ic->duration, AV_TIME_BASE_Q, st->time_base);
2228 static void estimate_timings_from_bit_rate(AVFormatContext *ic)
2230 int64_t filesize, duration;
2231 int i, show_warning = 0;
2234 /* if bit_rate is already set, we believe it */
2235 if (ic->bit_rate <= 0) {
2237 for(i=0;i<ic->nb_streams;i++) {
2238 st = ic->streams[i];
2239 if (st->codec->bit_rate > 0) {
2240 if (INT_MAX - st->codec->bit_rate < bit_rate) {
2244 bit_rate += st->codec->bit_rate;
2247 ic->bit_rate = bit_rate;
2250 /* if duration is already set, we believe it */
2251 if (ic->duration == AV_NOPTS_VALUE &&
2252 ic->bit_rate != 0) {
2253 filesize = ic->pb ? avio_size(ic->pb) : 0;
2255 for(i = 0; i < ic->nb_streams; i++) {
2256 st = ic->streams[i];
2257 if ( st->time_base.num <= INT64_MAX / ic->bit_rate
2258 && st->duration == AV_NOPTS_VALUE) {
2259 duration= av_rescale(8*filesize, st->time_base.den, ic->bit_rate*(int64_t)st->time_base.num);
2260 st->duration = duration;
2267 av_log(ic, AV_LOG_WARNING, "Estimating duration from bitrate, this may be inaccurate\n");
2270 #define DURATION_MAX_READ_SIZE 250000LL
2271 #define DURATION_MAX_RETRY 4
2273 /* only usable for MPEG-PS streams */
2274 static void estimate_timings_from_pts(AVFormatContext *ic, int64_t old_offset)
2276 AVPacket pkt1, *pkt = &pkt1;
2278 int read_size, i, ret;
2280 int64_t filesize, offset, duration;
2283 /* flush packet queue */
2284 flush_packet_queue(ic);
2286 for (i=0; i<ic->nb_streams; i++) {
2287 st = ic->streams[i];
2288 if (st->start_time == AV_NOPTS_VALUE && st->first_dts == AV_NOPTS_VALUE)
2289 av_log(st->codec, AV_LOG_WARNING, "start time is not set in estimate_timings_from_pts\n");
2292 av_parser_close(st->parser);
2297 /* estimate the end time (duration) */
2298 /* XXX: may need to support wrapping */
2299 filesize = ic->pb ? avio_size(ic->pb) : 0;
2300 end_time = AV_NOPTS_VALUE;
2302 offset = filesize - (DURATION_MAX_READ_SIZE<<retry);
2306 avio_seek(ic->pb, offset, SEEK_SET);
2309 if (read_size >= DURATION_MAX_READ_SIZE<<(FFMAX(retry-1,0)))
2313 ret = ff_read_packet(ic, pkt);
2314 } while(ret == AVERROR(EAGAIN));
2317 read_size += pkt->size;
2318 st = ic->streams[pkt->stream_index];
2319 if (pkt->pts != AV_NOPTS_VALUE &&
2320 (st->start_time != AV_NOPTS_VALUE ||
2321 st->first_dts != AV_NOPTS_VALUE)) {
2322 duration = end_time = pkt->pts;
2323 if (st->start_time != AV_NOPTS_VALUE)
2324 duration -= st->start_time;
2326 duration -= st->first_dts;
2328 if (st->duration == AV_NOPTS_VALUE || st->info->last_duration<=0 ||
2329 (st->duration < duration && FFABS(duration - st->info->last_duration) < 60LL*st->time_base.den / st->time_base.num))
2330 st->duration = duration;
2331 st->info->last_duration = duration;
2334 av_free_packet(pkt);
2336 }while( end_time==AV_NOPTS_VALUE
2337 && filesize > (DURATION_MAX_READ_SIZE<<retry)
2338 && ++retry <= DURATION_MAX_RETRY);
2340 fill_all_stream_timings(ic);
2342 avio_seek(ic->pb, old_offset, SEEK_SET);
2343 for (i=0; i<ic->nb_streams; i++) {
2345 st->cur_dts= st->first_dts;
2346 st->last_IP_pts = AV_NOPTS_VALUE;
2350 static void estimate_timings(AVFormatContext *ic, int64_t old_offset)
2354 /* get the file size, if possible */
2355 if (ic->iformat->flags & AVFMT_NOFILE) {
2358 file_size = avio_size(ic->pb);
2359 file_size = FFMAX(0, file_size);
2362 if ((!strcmp(ic->iformat->name, "mpeg") ||
2363 !strcmp(ic->iformat->name, "mpegts")) &&
2364 file_size && ic->pb->seekable) {
2365 /* get accurate estimate from the PTSes */
2366 estimate_timings_from_pts(ic, old_offset);
2367 ic->duration_estimation_method = AVFMT_DURATION_FROM_PTS;
2368 } else if (has_duration(ic)) {
2369 /* at least one component has timings - we use them for all
2371 fill_all_stream_timings(ic);
2372 ic->duration_estimation_method = AVFMT_DURATION_FROM_STREAM;
2374 /* less precise: use bitrate info */
2375 estimate_timings_from_bit_rate(ic);
2376 ic->duration_estimation_method = AVFMT_DURATION_FROM_BITRATE;
2378 update_stream_timings(ic);
2382 AVStream av_unused *st;
2383 for(i = 0;i < ic->nb_streams; i++) {
2384 st = ic->streams[i];
2385 av_dlog(ic, "%d: start_time: %0.3f duration: %0.3f\n", i,
2386 (double) st->start_time / AV_TIME_BASE,
2387 (double) st->duration / AV_TIME_BASE);
2389 av_dlog(ic, "stream: start_time: %0.3f duration: %0.3f bitrate=%d kb/s\n",
2390 (double) ic->start_time / AV_TIME_BASE,
2391 (double) ic->duration / AV_TIME_BASE,
2392 ic->bit_rate / 1000);
2396 static int has_codec_parameters(AVStream *st, const char **errmsg_ptr)
2398 AVCodecContext *avctx = st->codec;
2400 #define FAIL(errmsg) do { \
2402 *errmsg_ptr = errmsg; \
2406 switch (avctx->codec_type) {
2407 case AVMEDIA_TYPE_AUDIO:
2408 if (!avctx->frame_size && determinable_frame_size(avctx))
2409 FAIL("unspecified frame size");
2410 if (st->info->found_decoder >= 0 && avctx->sample_fmt == AV_SAMPLE_FMT_NONE)
2411 FAIL("unspecified sample format");
2412 if (!avctx->sample_rate)
2413 FAIL("unspecified sample rate");
2414 if (!avctx->channels)
2415 FAIL("unspecified number of channels");
2416 if (st->info->found_decoder >= 0 && !st->nb_decoded_frames && avctx->codec_id == AV_CODEC_ID_DTS)
2417 FAIL("no decodable DTS frames");
2419 case AVMEDIA_TYPE_VIDEO:
2421 FAIL("unspecified size");
2422 if (st->info->found_decoder >= 0 && avctx->pix_fmt == AV_PIX_FMT_NONE)
2423 FAIL("unspecified pixel format");
2424 if (st->codec->codec_id == AV_CODEC_ID_RV30 || st->codec->codec_id == AV_CODEC_ID_RV40)
2425 if (!st->sample_aspect_ratio.num && !st->codec->sample_aspect_ratio.num && !st->codec_info_nb_frames)
2426 FAIL("no frame in rv30/40 and no sar");
2428 case AVMEDIA_TYPE_SUBTITLE:
2429 if (avctx->codec_id == AV_CODEC_ID_HDMV_PGS_SUBTITLE && !avctx->width)
2430 FAIL("unspecified size");
2432 case AVMEDIA_TYPE_DATA:
2433 if(avctx->codec_id == AV_CODEC_ID_NONE) return 1;
2436 if (avctx->codec_id == AV_CODEC_ID_NONE)
2437 FAIL("unknown codec");
2441 /* returns 1 or 0 if or if not decoded data was returned, or a negative error */
2442 static int try_decode_frame(AVFormatContext *s, AVStream *st, AVPacket *avpkt, AVDictionary **options)
2444 const AVCodec *codec;
2445 int got_picture = 1, ret = 0;
2446 AVFrame *frame = avcodec_alloc_frame();
2447 AVSubtitle subtitle;
2448 AVPacket pkt = *avpkt;
2451 return AVERROR(ENOMEM);
2453 if (!avcodec_is_open(st->codec) && !st->info->found_decoder) {
2454 AVDictionary *thread_opt = NULL;
2456 codec = find_decoder(s, st, st->codec->codec_id);
2459 st->info->found_decoder = -1;
2464 /* force thread count to 1 since the h264 decoder will not extract SPS
2465 * and PPS to extradata during multi-threaded decoding */
2466 av_dict_set(options ? options : &thread_opt, "threads", "1", 0);
2467 ret = avcodec_open2(st->codec, codec, options ? options : &thread_opt);
2469 av_dict_free(&thread_opt);
2471 st->info->found_decoder = -1;
2474 st->info->found_decoder = 1;
2475 } else if (!st->info->found_decoder)
2476 st->info->found_decoder = 1;
2478 if (st->info->found_decoder < 0) {
2483 while ((pkt.size > 0 || (!pkt.data && got_picture)) &&
2485 (!has_codec_parameters(st, NULL) ||
2486 !has_decode_delay_been_guessed(st) ||
2487 (!st->codec_info_nb_frames && st->codec->codec->capabilities & CODEC_CAP_CHANNEL_CONF))) {
2489 avcodec_get_frame_defaults(frame);
2490 switch(st->codec->codec_type) {
2491 case AVMEDIA_TYPE_VIDEO:
2492 ret = avcodec_decode_video2(st->codec, frame,
2493 &got_picture, &pkt);
2495 case AVMEDIA_TYPE_AUDIO:
2496 ret = avcodec_decode_audio4(st->codec, frame, &got_picture, &pkt);
2498 case AVMEDIA_TYPE_SUBTITLE:
2499 ret = avcodec_decode_subtitle2(st->codec, &subtitle,
2500 &got_picture, &pkt);
2508 st->nb_decoded_frames++;
2515 if(!pkt.data && !got_picture)
2519 avcodec_free_frame(&frame);
2523 unsigned int ff_codec_get_tag(const AVCodecTag *tags, enum AVCodecID id)
2525 while (tags->id != AV_CODEC_ID_NONE) {
2533 enum AVCodecID ff_codec_get_id(const AVCodecTag *tags, unsigned int tag)
2536 for(i=0; tags[i].id != AV_CODEC_ID_NONE;i++) {
2537 if(tag == tags[i].tag)
2540 for(i=0; tags[i].id != AV_CODEC_ID_NONE; i++) {
2541 if (avpriv_toupper4(tag) == avpriv_toupper4(tags[i].tag))
2544 return AV_CODEC_ID_NONE;
2547 enum AVCodecID ff_get_pcm_codec_id(int bps, int flt, int be, int sflags)
2551 case 32: return be ? AV_CODEC_ID_PCM_F32BE : AV_CODEC_ID_PCM_F32LE;
2552 case 64: return be ? AV_CODEC_ID_PCM_F64BE : AV_CODEC_ID_PCM_F64LE;
2553 default: return AV_CODEC_ID_NONE;
2558 if (sflags & (1 << (bps - 1))) {
2560 case 1: return AV_CODEC_ID_PCM_S8;
2561 case 2: return be ? AV_CODEC_ID_PCM_S16BE : AV_CODEC_ID_PCM_S16LE;
2562 case 3: return be ? AV_CODEC_ID_PCM_S24BE : AV_CODEC_ID_PCM_S24LE;
2563 case 4: return be ? AV_CODEC_ID_PCM_S32BE : AV_CODEC_ID_PCM_S32LE;
2564 default: return AV_CODEC_ID_NONE;
2568 case 1: return AV_CODEC_ID_PCM_U8;
2569 case 2: return be ? AV_CODEC_ID_PCM_U16BE : AV_CODEC_ID_PCM_U16LE;
2570 case 3: return be ? AV_CODEC_ID_PCM_U24BE : AV_CODEC_ID_PCM_U24LE;
2571 case 4: return be ? AV_CODEC_ID_PCM_U32BE : AV_CODEC_ID_PCM_U32LE;
2572 default: return AV_CODEC_ID_NONE;
2578 unsigned int av_codec_get_tag(const AVCodecTag * const *tags, enum AVCodecID id)
2581 if (!av_codec_get_tag2(tags, id, &tag))
2586 int av_codec_get_tag2(const AVCodecTag * const *tags, enum AVCodecID id,
2590 for(i=0; tags && tags[i]; i++){
2591 const AVCodecTag *codec_tags = tags[i];
2592 while (codec_tags->id != AV_CODEC_ID_NONE) {
2593 if (codec_tags->id == id) {
2594 *tag = codec_tags->tag;
2603 enum AVCodecID av_codec_get_id(const AVCodecTag * const *tags, unsigned int tag)
2606 for(i=0; tags && tags[i]; i++){
2607 enum AVCodecID id= ff_codec_get_id(tags[i], tag);
2608 if(id!=AV_CODEC_ID_NONE) return id;
2610 return AV_CODEC_ID_NONE;
2613 static void compute_chapters_end(AVFormatContext *s)
2616 int64_t max_time = s->duration + ((s->start_time == AV_NOPTS_VALUE) ? 0 : s->start_time);
2618 for (i = 0; i < s->nb_chapters; i++)
2619 if (s->chapters[i]->end == AV_NOPTS_VALUE) {
2620 AVChapter *ch = s->chapters[i];
2621 int64_t end = max_time ? av_rescale_q(max_time, AV_TIME_BASE_Q, ch->time_base)
2624 for (j = 0; j < s->nb_chapters; j++) {
2625 AVChapter *ch1 = s->chapters[j];
2626 int64_t next_start = av_rescale_q(ch1->start, ch1->time_base, ch->time_base);
2627 if (j != i && next_start > ch->start && next_start < end)
2630 ch->end = (end == INT64_MAX) ? ch->start : end;
2634 static int get_std_framerate(int i){
2635 if(i<60*12) return (i+1)*1001;
2636 else return ((const int[]){24,30,60,12,15,48})[i-60*12]*1000*12;
2640 * Is the time base unreliable.
2641 * This is a heuristic to balance between quick acceptance of the values in
2642 * the headers vs. some extra checks.
2643 * Old DivX and Xvid often have nonsense timebases like 1fps or 2fps.
2644 * MPEG-2 commonly misuses field repeat flags to store different framerates.
2645 * And there are "variable" fps files this needs to detect as well.
2647 static int tb_unreliable(AVCodecContext *c){
2648 if( c->time_base.den >= 101L*c->time_base.num
2649 || c->time_base.den < 5L*c->time_base.num
2650 /* || c->codec_tag == AV_RL32("DIVX")
2651 || c->codec_tag == AV_RL32("XVID")*/
2652 || c->codec_tag == AV_RL32("mp4v")
2653 || c->codec_id == AV_CODEC_ID_MPEG2VIDEO
2654 || c->codec_id == AV_CODEC_ID_H264
2660 #if FF_API_FORMAT_PARAMETERS
2661 int av_find_stream_info(AVFormatContext *ic)
2663 return avformat_find_stream_info(ic, NULL);
2667 int ff_alloc_extradata(AVCodecContext *avctx, int size)
2671 if (size < 0 || size >= INT32_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
2672 avctx->extradata_size = 0;
2673 return AVERROR(EINVAL);
2675 avctx->extradata = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
2676 if (avctx->extradata) {
2677 memset(avctx->extradata + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
2678 avctx->extradata_size = size;
2681 avctx->extradata_size = 0;
2682 ret = AVERROR(ENOMEM);
2687 int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
2689 int i, count, ret = 0, j;
2692 AVPacket pkt1, *pkt;
2693 int64_t old_offset = avio_tell(ic->pb);
2694 int orig_nb_streams = ic->nb_streams; // new streams might appear, no options for those
2695 int flush_codecs = ic->probesize > 0;
2698 av_log(ic, AV_LOG_DEBUG, "File position before avformat_find_stream_info() is %"PRId64"\n", avio_tell(ic->pb));
2700 for(i=0;i<ic->nb_streams;i++) {
2701 const AVCodec *codec;
2702 AVDictionary *thread_opt = NULL;
2703 st = ic->streams[i];
2705 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2706 st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2707 /* if(!st->time_base.num)
2709 if(!st->codec->time_base.num)
2710 st->codec->time_base= st->time_base;
2712 //only for the split stuff
2713 if (!st->parser && !(ic->flags & AVFMT_FLAG_NOPARSE)) {
2714 st->parser = av_parser_init(st->codec->codec_id);
2716 if(st->need_parsing == AVSTREAM_PARSE_HEADERS){
2717 st->parser->flags |= PARSER_FLAG_COMPLETE_FRAMES;
2718 } else if(st->need_parsing == AVSTREAM_PARSE_FULL_RAW) {
2719 st->parser->flags |= PARSER_FLAG_USE_CODEC_TS;
2721 } else if (st->need_parsing) {
2722 av_log(ic, AV_LOG_VERBOSE, "parser not found for codec "
2723 "%s, packets or times may be invalid.\n",
2724 avcodec_get_name(st->codec->codec_id));
2727 codec = find_decoder(ic, st, st->codec->codec_id);
2729 /* force thread count to 1 since the h264 decoder will not extract SPS
2730 * and PPS to extradata during multi-threaded decoding */
2731 av_dict_set(options ? &options[i] : &thread_opt, "threads", "1", 0);
2733 /* Ensure that subtitle_header is properly set. */
2734 if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE
2735 && codec && !st->codec->codec)
2736 avcodec_open2(st->codec, codec, options ? &options[i]
2739 //try to just open decoders, in case this is enough to get parameters
2740 if (!has_codec_parameters(st, NULL) && st->request_probe <= 0) {
2741 if (codec && !st->codec->codec)
2742 avcodec_open2(st->codec, codec, options ? &options[i]
2746 av_dict_free(&thread_opt);
2749 for (i=0; i<ic->nb_streams; i++) {
2750 #if FF_API_R_FRAME_RATE
2751 ic->streams[i]->info->last_dts = AV_NOPTS_VALUE;
2753 ic->streams[i]->info->fps_first_dts = AV_NOPTS_VALUE;
2754 ic->streams[i]->info->fps_last_dts = AV_NOPTS_VALUE;
2760 if (ff_check_interrupt(&ic->interrupt_callback)){
2762 av_log(ic, AV_LOG_DEBUG, "interrupted\n");
2766 /* check if one codec still needs to be handled */
2767 for(i=0;i<ic->nb_streams;i++) {
2768 int fps_analyze_framecount = 20;
2770 st = ic->streams[i];
2771 if (!has_codec_parameters(st, NULL))
2773 /* if the timebase is coarse (like the usual millisecond precision
2774 of mkv), we need to analyze more frames to reliably arrive at
2776 if (av_q2d(st->time_base) > 0.0005)
2777 fps_analyze_framecount *= 2;
2778 if (ic->fps_probe_size >= 0)
2779 fps_analyze_framecount = ic->fps_probe_size;
2780 if (st->disposition & AV_DISPOSITION_ATTACHED_PIC)
2781 fps_analyze_framecount = 0;
2782 /* variable fps and no guess at the real fps */
2783 if( tb_unreliable(st->codec) && !(st->r_frame_rate.num && st->avg_frame_rate.num)
2784 && st->info->duration_count < fps_analyze_framecount
2785 && st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2787 if(st->parser && st->parser->parser->split && !st->codec->extradata)
2789 if (st->first_dts == AV_NOPTS_VALUE &&
2790 (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2791 st->codec->codec_type == AVMEDIA_TYPE_AUDIO))
2794 if (i == ic->nb_streams) {
2795 /* NOTE: if the format has no header, then we need to read
2796 some packets to get most of the streams, so we cannot
2798 if (!(ic->ctx_flags & AVFMTCTX_NOHEADER)) {
2799 /* if we found the info for all the codecs, we can stop */
2801 av_log(ic, AV_LOG_DEBUG, "All info found\n");
2806 /* we did not get all the codec info, but we read too much data */
2807 if (read_size >= ic->probesize) {
2809 av_log(ic, AV_LOG_DEBUG, "Probe buffer size limit of %d bytes reached\n", ic->probesize);
2810 for (i = 0; i < ic->nb_streams; i++)
2811 if (!ic->streams[i]->r_frame_rate.num &&
2812 ic->streams[i]->info->duration_count <= 1 &&
2813 strcmp(ic->iformat->name, "image2"))
2814 av_log(ic, AV_LOG_WARNING,
2815 "Stream #%d: not enough frames to estimate rate; "
2816 "consider increasing probesize\n", i);
2820 /* NOTE: a new stream can be added there if no header in file
2821 (AVFMTCTX_NOHEADER) */
2822 ret = read_frame_internal(ic, &pkt1);
2823 if (ret == AVERROR(EAGAIN))
2831 if (ic->flags & AVFMT_FLAG_NOBUFFER)
2832 free_packet_buffer(&ic->packet_buffer, &ic->packet_buffer_end);
2834 pkt = add_to_pktbuf(&ic->packet_buffer, &pkt1,
2835 &ic->packet_buffer_end);
2837 ret = AVERROR(ENOMEM);
2838 goto find_stream_info_err;
2840 if ((ret = av_dup_packet(pkt)) < 0)
2841 goto find_stream_info_err;
2844 read_size += pkt->size;
2846 st = ic->streams[pkt->stream_index];
2847 if (pkt->dts != AV_NOPTS_VALUE && st->codec_info_nb_frames > 1) {
2848 /* check for non-increasing dts */
2849 if (st->info->fps_last_dts != AV_NOPTS_VALUE &&
2850 st->info->fps_last_dts >= pkt->dts) {
2851 av_log(ic, AV_LOG_DEBUG, "Non-increasing DTS in stream %d: "
2852 "packet %d with DTS %"PRId64", packet %d with DTS "
2853 "%"PRId64"\n", st->index, st->info->fps_last_dts_idx,
2854 st->info->fps_last_dts, st->codec_info_nb_frames, pkt->dts);
2855 st->info->fps_first_dts = st->info->fps_last_dts = AV_NOPTS_VALUE;
2857 /* check for a discontinuity in dts - if the difference in dts
2858 * is more than 1000 times the average packet duration in the sequence,
2859 * we treat it as a discontinuity */
2860 if (st->info->fps_last_dts != AV_NOPTS_VALUE &&
2861 st->info->fps_last_dts_idx > st->info->fps_first_dts_idx &&
2862 (pkt->dts - st->info->fps_last_dts) / 1000 >
2863 (st->info->fps_last_dts - st->info->fps_first_dts) / (st->info->fps_last_dts_idx - st->info->fps_first_dts_idx)) {
2864 av_log(ic, AV_LOG_WARNING, "DTS discontinuity in stream %d: "
2865 "packet %d with DTS %"PRId64", packet %d with DTS "
2866 "%"PRId64"\n", st->index, st->info->fps_last_dts_idx,
2867 st->info->fps_last_dts, st->codec_info_nb_frames, pkt->dts);
2868 st->info->fps_first_dts = st->info->fps_last_dts = AV_NOPTS_VALUE;
2871 /* update stored dts values */
2872 if (st->info->fps_first_dts == AV_NOPTS_VALUE) {
2873 st->info->fps_first_dts = pkt->dts;
2874 st->info->fps_first_dts_idx = st->codec_info_nb_frames;
2876 st->info->fps_last_dts = pkt->dts;
2877 st->info->fps_last_dts_idx = st->codec_info_nb_frames;
2879 if (st->codec_info_nb_frames>1) {
2881 if (st->time_base.den > 0)
2882 t = av_rescale_q(st->info->codec_info_duration, st->time_base, AV_TIME_BASE_Q);
2883 if (st->avg_frame_rate.num > 0)
2884 t = FFMAX(t, av_rescale_q(st->codec_info_nb_frames, av_inv_q(st->avg_frame_rate), AV_TIME_BASE_Q));
2887 && st->codec_info_nb_frames>30
2888 && st->info->fps_first_dts != AV_NOPTS_VALUE
2889 && st->info->fps_last_dts != AV_NOPTS_VALUE)
2890 t = FFMAX(t, av_rescale_q(st->info->fps_last_dts - st->info->fps_first_dts, st->time_base, AV_TIME_BASE_Q));
2892 if (t >= ic->max_analyze_duration) {
2893 av_log(ic, AV_LOG_VERBOSE, "max_analyze_duration %d reached at %"PRId64" microseconds\n", ic->max_analyze_duration, t);
2896 if (pkt->duration) {
2897 st->info->codec_info_duration += pkt->duration;
2898 st->info->codec_info_duration_fields += st->parser && st->need_parsing && st->codec->ticks_per_frame==2 ? st->parser->repeat_pict + 1 : 2;
2901 #if FF_API_R_FRAME_RATE
2903 int64_t last = st->info->last_dts;
2905 if( pkt->dts != AV_NOPTS_VALUE && last != AV_NOPTS_VALUE && pkt->dts > last
2906 && pkt->dts - (uint64_t)last < INT64_MAX){
2907 double dts= (is_relative(pkt->dts) ? pkt->dts - RELATIVE_TS_BASE : pkt->dts) * av_q2d(st->time_base);
2908 int64_t duration= pkt->dts - last;
2910 if (!st->info->duration_error)
2911 st->info->duration_error = av_mallocz(sizeof(st->info->duration_error[0])*2);
2912 if (!st->info->duration_error)
2913 return AVERROR(ENOMEM);
2915 // if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2916 // av_log(NULL, AV_LOG_ERROR, "%f\n", dts);
2917 for (i=0; i<MAX_STD_TIMEBASES; i++) {
2918 int framerate= get_std_framerate(i);
2919 double sdts= dts*framerate/(1001*12);
2921 int64_t ticks= llrint(sdts+j*0.5);
2922 double error= sdts - ticks + j*0.5;
2923 st->info->duration_error[j][0][i] += error;
2924 st->info->duration_error[j][1][i] += error*error;
2927 st->info->duration_count++;
2928 // ignore the first 4 values, they might have some random jitter
2929 if (st->info->duration_count > 3 && is_relative(pkt->dts) == is_relative(last))
2930 st->info->duration_gcd = av_gcd(st->info->duration_gcd, duration);
2932 if (pkt->dts != AV_NOPTS_VALUE)
2933 st->info->last_dts = pkt->dts;
2936 if(st->parser && st->parser->parser->split && !st->codec->extradata){
2937 int i= st->parser->parser->split(st->codec, pkt->data, pkt->size);
2938 if (i > 0 && i < FF_MAX_EXTRADATA_SIZE) {
2939 if (ff_alloc_extradata(st->codec, i))
2940 return AVERROR(ENOMEM);
2941 memcpy(st->codec->extradata, pkt->data, st->codec->extradata_size);
2945 /* if still no information, we try to open the codec and to
2946 decompress the frame. We try to avoid that in most cases as
2947 it takes longer and uses more memory. For MPEG-4, we need to
2948 decompress for QuickTime.
2950 If CODEC_CAP_CHANNEL_CONF is set this will force decoding of at
2951 least one frame of codec data, this makes sure the codec initializes
2952 the channel configuration and does not only trust the values from the container.
2954 try_decode_frame(ic, st, pkt, (options && i < orig_nb_streams ) ? &options[i] : NULL);
2956 st->codec_info_nb_frames++;
2961 AVPacket empty_pkt = { 0 };
2963 av_init_packet(&empty_pkt);
2965 for(i=0;i<ic->nb_streams;i++) {
2967 st = ic->streams[i];
2969 /* flush the decoders */
2970 if (st->info->found_decoder == 1) {
2972 err = try_decode_frame(ic, st, &empty_pkt,
2973 (options && i < orig_nb_streams) ?
2974 &options[i] : NULL);
2975 } while (err > 0 && !has_codec_parameters(st, NULL));
2978 av_log(ic, AV_LOG_INFO,
2979 "decoding for stream %d failed\n", st->index);
2985 // close codecs which were opened in try_decode_frame()
2986 for(i=0;i<ic->nb_streams;i++) {
2987 st = ic->streams[i];
2988 avcodec_close(st->codec);
2990 for(i=0;i<ic->nb_streams;i++) {
2991 st = ic->streams[i];
2992 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2993 if(st->codec->codec_id == AV_CODEC_ID_RAWVIDEO && !st->codec->codec_tag && !st->codec->bits_per_coded_sample){
2994 uint32_t tag= avcodec_pix_fmt_to_codec_tag(st->codec->pix_fmt);
2995 if (avpriv_find_pix_fmt(ff_raw_pix_fmt_tags, tag) == st->codec->pix_fmt)
2996 st->codec->codec_tag= tag;
2999 /* estimate average framerate if not set by demuxer */
3000 if (st->info->codec_info_duration_fields && !st->avg_frame_rate.num && st->info->codec_info_duration) {
3002 double best_error = 0.01;
3004 if (st->info->codec_info_duration >= INT64_MAX / st->time_base.num / 2||
3005 st->info->codec_info_duration_fields >= INT64_MAX / st->time_base.den ||
3006 st->info->codec_info_duration < 0)
3008 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
3009 st->info->codec_info_duration_fields*(int64_t)st->time_base.den,
3010 st->info->codec_info_duration*2*(int64_t)st->time_base.num, 60000);
3012 /* round guessed framerate to a "standard" framerate if it's
3013 * within 1% of the original estimate*/
3014 for (j = 1; j < MAX_STD_TIMEBASES; j++) {
3015 AVRational std_fps = { get_std_framerate(j), 12*1001 };
3016 double error = fabs(av_q2d(st->avg_frame_rate) / av_q2d(std_fps) - 1);
3018 if (error < best_error) {
3020 best_fps = std_fps.num;
3024 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
3025 best_fps, 12*1001, INT_MAX);
3028 // the check for tb_unreliable() is not completely correct, since this is not about handling
3029 // a unreliable/inexact time base, but a time base that is finer than necessary, as e.g.
3030 // ipmovie.c produces.
3031 if (tb_unreliable(st->codec) && st->info->duration_count > 15 && st->info->duration_gcd > FFMAX(1, st->time_base.den/(500LL*st->time_base.num)) && !st->r_frame_rate.num)
3032 av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den, st->time_base.den, st->time_base.num * st->info->duration_gcd, INT_MAX);
3033 if (st->info->duration_count>1 && !st->r_frame_rate.num
3034 && tb_unreliable(st->codec)) {
3036 double best_error= 0.01;
3038 for (j=0; j<MAX_STD_TIMEBASES; j++) {
3041 if(st->info->codec_info_duration && st->info->codec_info_duration*av_q2d(st->time_base) < (1001*12.0)/get_std_framerate(j))
3043 if(!st->info->codec_info_duration && 1.0 < (1001*12.0)/get_std_framerate(j))
3046 int n= st->info->duration_count;
3047 double a= st->info->duration_error[k][0][j] / n;
3048 double error= st->info->duration_error[k][1][j]/n - a*a;
3050 if(error < best_error && best_error> 0.000000001){
3052 num = get_std_framerate(j);
3055 av_log(NULL, AV_LOG_DEBUG, "rfps: %f %f\n", get_std_framerate(j) / 12.0/1001, error);
3058 // do not increase frame rate by more than 1 % in order to match a standard rate.
3059 if (num && (!st->r_frame_rate.num || (double)num/(12*1001) < 1.01 * av_q2d(st->r_frame_rate)))
3060 av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den, num, 12*1001, INT_MAX);
3063 if (!st->r_frame_rate.num){
3064 if( st->codec->time_base.den * (int64_t)st->time_base.num
3065 <= st->codec->time_base.num * st->codec->ticks_per_frame * (int64_t)st->time_base.den){
3066 st->r_frame_rate.num = st->codec->time_base.den;
3067 st->r_frame_rate.den = st->codec->time_base.num * st->codec->ticks_per_frame;
3069 st->r_frame_rate.num = st->time_base.den;
3070 st->r_frame_rate.den = st->time_base.num;
3073 }else if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3074 if(!st->codec->bits_per_coded_sample)
3075 st->codec->bits_per_coded_sample= av_get_bits_per_sample(st->codec->codec_id);
3076 // set stream disposition based on audio service type
3077 switch (st->codec->audio_service_type) {
3078 case AV_AUDIO_SERVICE_TYPE_EFFECTS:
3079 st->disposition = AV_DISPOSITION_CLEAN_EFFECTS; break;
3080 case AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED:
3081 st->disposition = AV_DISPOSITION_VISUAL_IMPAIRED; break;
3082 case AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED:
3083 st->disposition = AV_DISPOSITION_HEARING_IMPAIRED; break;
3084 case AV_AUDIO_SERVICE_TYPE_COMMENTARY:
3085 st->disposition = AV_DISPOSITION_COMMENT; break;
3086 case AV_AUDIO_SERVICE_TYPE_KARAOKE:
3087 st->disposition = AV_DISPOSITION_KARAOKE; break;
3093 estimate_timings(ic, old_offset);
3095 if (ret >= 0 && ic->nb_streams)
3096 ret = -1; /* we could not have all the codec parameters before EOF */
3097 for(i=0;i<ic->nb_streams;i++) {
3099 st = ic->streams[i];
3100 if (!has_codec_parameters(st, &errmsg)) {
3102 avcodec_string(buf, sizeof(buf), st->codec, 0);
3103 av_log(ic, AV_LOG_WARNING,
3104 "Could not find codec parameters for stream %d (%s): %s\n"
3105 "Consider increasing the value for the 'analyzeduration' and 'probesize' options\n",
3112 compute_chapters_end(ic);
3114 find_stream_info_err:
3115 for (i=0; i < ic->nb_streams; i++) {
3116 st = ic->streams[i];
3117 if (ic->streams[i]->codec && ic->streams[i]->codec->codec_type != AVMEDIA_TYPE_AUDIO)
3118 ic->streams[i]->codec->thread_count = 0;
3120 av_freep(&st->info->duration_error);
3121 av_freep(&ic->streams[i]->info);
3124 av_log(ic, AV_LOG_DEBUG, "File position after avformat_find_stream_info() is %"PRId64"\n", avio_tell(ic->pb));
3128 AVProgram *av_find_program_from_stream(AVFormatContext *ic, AVProgram *last, int s)
3132 for (i = 0; i < ic->nb_programs; i++) {
3133 if (ic->programs[i] == last) {
3137 for (j = 0; j < ic->programs[i]->nb_stream_indexes; j++)
3138 if (ic->programs[i]->stream_index[j] == s)
3139 return ic->programs[i];
3145 int av_find_best_stream(AVFormatContext *ic,
3146 enum AVMediaType type,
3147 int wanted_stream_nb,
3149 AVCodec **decoder_ret,
3152 int i, nb_streams = ic->nb_streams;
3153 int ret = AVERROR_STREAM_NOT_FOUND, best_count = -1, best_bitrate = -1, best_multiframe = -1, count, bitrate, multiframe;
3154 unsigned *program = NULL;
3155 AVCodec *decoder = NULL, *best_decoder = NULL;
3157 if (related_stream >= 0 && wanted_stream_nb < 0) {
3158 AVProgram *p = av_find_program_from_stream(ic, NULL, related_stream);
3160 program = p->stream_index;
3161 nb_streams = p->nb_stream_indexes;
3164 for (i = 0; i < nb_streams; i++) {
3165 int real_stream_index = program ? program[i] : i;
3166 AVStream *st = ic->streams[real_stream_index];
3167 AVCodecContext *avctx = st->codec;
3168 if (avctx->codec_type != type)
3170 if (wanted_stream_nb >= 0 && real_stream_index != wanted_stream_nb)
3172 if (st->disposition & (AV_DISPOSITION_HEARING_IMPAIRED|AV_DISPOSITION_VISUAL_IMPAIRED))
3175 decoder = find_decoder(ic, st, st->codec->codec_id);
3178 ret = AVERROR_DECODER_NOT_FOUND;
3182 count = st->codec_info_nb_frames;
3183 bitrate = avctx->bit_rate;
3184 multiframe = FFMIN(5, count);
3185 if ((best_multiframe > multiframe) ||
3186 (best_multiframe == multiframe && best_bitrate > bitrate) ||
3187 (best_multiframe == multiframe && best_bitrate == bitrate && best_count >= count))
3190 best_bitrate = bitrate;
3191 best_multiframe = multiframe;
3192 ret = real_stream_index;
3193 best_decoder = decoder;
3194 if (program && i == nb_streams - 1 && ret < 0) {
3196 nb_streams = ic->nb_streams;
3197 i = 0; /* no related stream found, try again with everything */
3201 *decoder_ret = best_decoder;
3205 /*******************************************************/
3207 int av_read_play(AVFormatContext *s)
3209 if (s->iformat->read_play)
3210 return s->iformat->read_play(s);
3212 return avio_pause(s->pb, 0);
3213 return AVERROR(ENOSYS);
3216 int av_read_pause(AVFormatContext *s)
3218 if (s->iformat->read_pause)
3219 return s->iformat->read_pause(s);
3221 return avio_pause(s->pb, 1);
3222 return AVERROR(ENOSYS);
3225 void ff_free_stream(AVFormatContext *s, AVStream *st){
3226 av_assert0(s->nb_streams>0);
3227 av_assert0(s->streams[ s->nb_streams-1 ] == st);
3230 av_parser_close(st->parser);
3232 if (st->attached_pic.data)
3233 av_free_packet(&st->attached_pic);
3234 av_dict_free(&st->metadata);
3235 av_freep(&st->probe_data.buf);
3236 av_freep(&st->index_entries);
3237 av_freep(&st->codec->extradata);
3238 av_freep(&st->codec->subtitle_header);
3239 av_freep(&st->codec);
3240 av_freep(&st->priv_data);
3242 av_freep(&st->info->duration_error);
3243 av_freep(&st->info);
3244 av_freep(&s->streams[ --s->nb_streams ]);
3247 void avformat_free_context(AVFormatContext *s)
3255 if (s->iformat && s->iformat->priv_class && s->priv_data)
3256 av_opt_free(s->priv_data);
3258 for(i=s->nb_streams-1; i>=0; i--) {
3259 ff_free_stream(s, s->streams[i]);
3261 for(i=s->nb_programs-1; i>=0; i--) {
3262 av_dict_free(&s->programs[i]->metadata);
3263 av_freep(&s->programs[i]->stream_index);
3264 av_freep(&s->programs[i]);
3266 av_freep(&s->programs);
3267 av_freep(&s->priv_data);
3268 while(s->nb_chapters--) {
3269 av_dict_free(&s->chapters[s->nb_chapters]->metadata);
3270 av_freep(&s->chapters[s->nb_chapters]);
3272 av_freep(&s->chapters);
3273 av_dict_free(&s->metadata);
3274 av_freep(&s->streams);
3278 #if FF_API_CLOSE_INPUT_FILE
3279 void av_close_input_file(AVFormatContext *s)
3281 avformat_close_input(&s);
3285 void avformat_close_input(AVFormatContext **ps)
3296 if ((s->iformat && s->iformat->flags & AVFMT_NOFILE) ||
3297 (s->flags & AVFMT_FLAG_CUSTOM_IO))
3300 flush_packet_queue(s);
3303 if (s->iformat->read_close)
3304 s->iformat->read_close(s);
3307 avformat_free_context(s);
3314 #if FF_API_NEW_STREAM
3315 AVStream *av_new_stream(AVFormatContext *s, int id)
3317 AVStream *st = avformat_new_stream(s, NULL);
3324 AVStream *avformat_new_stream(AVFormatContext *s, const AVCodec *c)
3330 if (s->nb_streams >= INT_MAX/sizeof(*streams))
3332 streams = av_realloc_array(s->streams, s->nb_streams + 1, sizeof(*streams));
3335 s->streams = streams;
3337 st = av_mallocz(sizeof(AVStream));
3340 if (!(st->info = av_mallocz(sizeof(*st->info)))) {
3344 st->info->last_dts = AV_NOPTS_VALUE;
3346 st->codec = avcodec_alloc_context3(c);
3348 /* no default bitrate if decoding */
3349 st->codec->bit_rate = 0;
3351 st->index = s->nb_streams;
3352 st->start_time = AV_NOPTS_VALUE;
3353 st->duration = AV_NOPTS_VALUE;
3354 /* we set the current DTS to 0 so that formats without any timestamps
3355 but durations get some timestamps, formats with some unknown
3356 timestamps have their first few packets buffered and the
3357 timestamps corrected before they are returned to the user */
3358 st->cur_dts = s->iformat ? RELATIVE_TS_BASE : 0;
3359 st->first_dts = AV_NOPTS_VALUE;
3360 st->probe_packets = MAX_PROBE_PACKETS;
3361 st->pts_wrap_reference = AV_NOPTS_VALUE;
3362 st->pts_wrap_behavior = AV_PTS_WRAP_IGNORE;
3364 /* default pts setting is MPEG-like */
3365 avpriv_set_pts_info(st, 33, 1, 90000);
3366 st->last_IP_pts = AV_NOPTS_VALUE;
3367 for(i=0; i<MAX_REORDER_DELAY+1; i++)
3368 st->pts_buffer[i]= AV_NOPTS_VALUE;
3370 st->sample_aspect_ratio = (AVRational){0,1};
3372 #if FF_API_R_FRAME_RATE
3373 st->info->last_dts = AV_NOPTS_VALUE;
3375 st->info->fps_first_dts = AV_NOPTS_VALUE;
3376 st->info->fps_last_dts = AV_NOPTS_VALUE;
3378 s->streams[s->nb_streams++] = st;
3382 AVProgram *av_new_program(AVFormatContext *ac, int id)
3384 AVProgram *program=NULL;
3387 av_dlog(ac, "new_program: id=0x%04x\n", id);
3389 for(i=0; i<ac->nb_programs; i++)
3390 if(ac->programs[i]->id == id)
3391 program = ac->programs[i];
3394 program = av_mallocz(sizeof(AVProgram));
3397 dynarray_add(&ac->programs, &ac->nb_programs, program);
3398 program->discard = AVDISCARD_NONE;
3401 program->pts_wrap_reference = AV_NOPTS_VALUE;
3402 program->pts_wrap_behavior = AV_PTS_WRAP_IGNORE;
3404 program->start_time =
3405 program->end_time = AV_NOPTS_VALUE;
3410 AVChapter *avpriv_new_chapter(AVFormatContext *s, int id, AVRational time_base, int64_t start, int64_t end, const char *title)
3412 AVChapter *chapter = NULL;
3415 for(i=0; i<s->nb_chapters; i++)
3416 if(s->chapters[i]->id == id)
3417 chapter = s->chapters[i];
3420 chapter= av_mallocz(sizeof(AVChapter));
3423 dynarray_add(&s->chapters, &s->nb_chapters, chapter);
3425 av_dict_set(&chapter->metadata, "title", title, 0);
3427 chapter->time_base= time_base;
3428 chapter->start = start;
3434 void ff_program_add_stream_index(AVFormatContext *ac, int progid, unsigned int idx)
3437 AVProgram *program=NULL;
3440 if (idx >= ac->nb_streams) {
3441 av_log(ac, AV_LOG_ERROR, "stream index %d is not valid\n", idx);
3445 for(i=0; i<ac->nb_programs; i++){
3446 if(ac->programs[i]->id != progid)
3448 program = ac->programs[i];
3449 for(j=0; j<program->nb_stream_indexes; j++)
3450 if(program->stream_index[j] == idx)
3453 tmp = av_realloc_array(program->stream_index, program->nb_stream_indexes+1, sizeof(unsigned int));
3456 program->stream_index = tmp;
3457 program->stream_index[program->nb_stream_indexes++] = idx;
3462 static void print_fps(double d, const char *postfix){
3463 uint64_t v= lrintf(d*100);
3464 if (v% 100 ) av_log(NULL, AV_LOG_INFO, ", %3.2f %s", d, postfix);
3465 else if(v%(100*1000)) av_log(NULL, AV_LOG_INFO, ", %1.0f %s", d, postfix);
3466 else av_log(NULL, AV_LOG_INFO, ", %1.0fk %s", d/1000, postfix);
3469 static void dump_metadata(void *ctx, AVDictionary *m, const char *indent)
3471 if(m && !(av_dict_count(m) == 1 && av_dict_get(m, "language", NULL, 0))){
3472 AVDictionaryEntry *tag=NULL;
3474 av_log(ctx, AV_LOG_INFO, "%sMetadata:\n", indent);
3475 while((tag=av_dict_get(m, "", tag, AV_DICT_IGNORE_SUFFIX))) {
3476 if(strcmp("language", tag->key)){
3477 const char *p = tag->value;
3478 av_log(ctx, AV_LOG_INFO, "%s %-16s: ", indent, tag->key);
3481 size_t len = strcspn(p, "\x8\xa\xb\xc\xd");
3482 av_strlcpy(tmp, p, FFMIN(sizeof(tmp), len+1));
3483 av_log(ctx, AV_LOG_INFO, "%s", tmp);
3485 if (*p == 0xd) av_log(ctx, AV_LOG_INFO, " ");
3486 if (*p == 0xa) av_log(ctx, AV_LOG_INFO, "\n%s %-16s: ", indent, "");
3489 av_log(ctx, AV_LOG_INFO, "\n");
3495 /* "user interface" functions */
3496 static void dump_stream_format(AVFormatContext *ic, int i, int index, int is_output)
3499 int flags = (is_output ? ic->oformat->flags : ic->iformat->flags);
3500 AVStream *st = ic->streams[i];
3501 int g = av_gcd(st->time_base.num, st->time_base.den);
3502 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL, 0);
3503 avcodec_string(buf, sizeof(buf), st->codec, is_output);
3504 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d", index, i);
3505 /* the pid is an important information, so we display it */
3506 /* XXX: add a generic system */
3507 if (flags & AVFMT_SHOW_IDS)
3508 av_log(NULL, AV_LOG_INFO, "[0x%x]", st->id);
3510 av_log(NULL, AV_LOG_INFO, "(%s)", lang->value);
3511 av_log(NULL, AV_LOG_DEBUG, ", %d, %d/%d", st->codec_info_nb_frames, st->time_base.num/g, st->time_base.den/g);
3512 av_log(NULL, AV_LOG_INFO, ": %s", buf);
3513 if (st->sample_aspect_ratio.num && // default
3514 av_cmp_q(st->sample_aspect_ratio, st->codec->sample_aspect_ratio)) {
3515 AVRational display_aspect_ratio;
3516 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
3517 st->codec->width*st->sample_aspect_ratio.num,
3518 st->codec->height*st->sample_aspect_ratio.den,
3520 av_log(NULL, AV_LOG_INFO, ", SAR %d:%d DAR %d:%d",
3521 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
3522 display_aspect_ratio.num, display_aspect_ratio.den);
3524 if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO){
3525 if(st->avg_frame_rate.den && st->avg_frame_rate.num)
3526 print_fps(av_q2d(st->avg_frame_rate), "fps");
3527 #if FF_API_R_FRAME_RATE
3528 if(st->r_frame_rate.den && st->r_frame_rate.num)
3529 print_fps(av_q2d(st->r_frame_rate), "tbr");
3531 if(st->time_base.den && st->time_base.num)
3532 print_fps(1/av_q2d(st->time_base), "tbn");
3533 if(st->codec->time_base.den && st->codec->time_base.num)
3534 print_fps(1/av_q2d(st->codec->time_base), "tbc");
3536 if (st->disposition & AV_DISPOSITION_DEFAULT)
3537 av_log(NULL, AV_LOG_INFO, " (default)");
3538 if (st->disposition & AV_DISPOSITION_DUB)
3539 av_log(NULL, AV_LOG_INFO, " (dub)");
3540 if (st->disposition & AV_DISPOSITION_ORIGINAL)
3541 av_log(NULL, AV_LOG_INFO, " (original)");
3542 if (st->disposition & AV_DISPOSITION_COMMENT)
3543 av_log(NULL, AV_LOG_INFO, " (comment)");
3544 if (st->disposition & AV_DISPOSITION_LYRICS)
3545 av_log(NULL, AV_LOG_INFO, " (lyrics)");
3546 if (st->disposition & AV_DISPOSITION_KARAOKE)
3547 av_log(NULL, AV_LOG_INFO, " (karaoke)");
3548 if (st->disposition & AV_DISPOSITION_FORCED)
3549 av_log(NULL, AV_LOG_INFO, " (forced)");
3550 if (st->disposition & AV_DISPOSITION_HEARING_IMPAIRED)
3551 av_log(NULL, AV_LOG_INFO, " (hearing impaired)");
3552 if (st->disposition & AV_DISPOSITION_VISUAL_IMPAIRED)
3553 av_log(NULL, AV_LOG_INFO, " (visual impaired)");
3554 if (st->disposition & AV_DISPOSITION_CLEAN_EFFECTS)
3555 av_log(NULL, AV_LOG_INFO, " (clean effects)");
3556 av_log(NULL, AV_LOG_INFO, "\n");
3557 dump_metadata(NULL, st->metadata, " ");
3560 void av_dump_format(AVFormatContext *ic,
3566 uint8_t *printed = ic->nb_streams ? av_mallocz(ic->nb_streams) : NULL;
3567 if (ic->nb_streams && !printed)
3570 av_log(NULL, AV_LOG_INFO, "%s #%d, %s, %s '%s':\n",
3571 is_output ? "Output" : "Input",
3573 is_output ? ic->oformat->name : ic->iformat->name,
3574 is_output ? "to" : "from", url);
3575 dump_metadata(NULL, ic->metadata, " ");
3577 av_log(NULL, AV_LOG_INFO, " Duration: ");
3578 if (ic->duration != AV_NOPTS_VALUE) {
3579 int hours, mins, secs, us;
3580 int64_t duration = ic->duration + 5000;
3581 secs = duration / AV_TIME_BASE;
3582 us = duration % AV_TIME_BASE;
3587 av_log(NULL, AV_LOG_INFO, "%02d:%02d:%02d.%02d", hours, mins, secs,
3588 (100 * us) / AV_TIME_BASE);
3590 av_log(NULL, AV_LOG_INFO, "N/A");
3592 if (ic->start_time != AV_NOPTS_VALUE) {
3594 av_log(NULL, AV_LOG_INFO, ", start: ");
3595 secs = ic->start_time / AV_TIME_BASE;
3596 us = abs(ic->start_time % AV_TIME_BASE);
3597 av_log(NULL, AV_LOG_INFO, "%d.%06d",
3598 secs, (int)av_rescale(us, 1000000, AV_TIME_BASE));
3600 av_log(NULL, AV_LOG_INFO, ", bitrate: ");
3602 av_log(NULL, AV_LOG_INFO,"%d kb/s", ic->bit_rate / 1000);
3604 av_log(NULL, AV_LOG_INFO, "N/A");
3606 av_log(NULL, AV_LOG_INFO, "\n");
3608 for (i = 0; i < ic->nb_chapters; i++) {
3609 AVChapter *ch = ic->chapters[i];
3610 av_log(NULL, AV_LOG_INFO, " Chapter #%d.%d: ", index, i);
3611 av_log(NULL, AV_LOG_INFO, "start %f, ", ch->start * av_q2d(ch->time_base));
3612 av_log(NULL, AV_LOG_INFO, "end %f\n", ch->end * av_q2d(ch->time_base));
3614 dump_metadata(NULL, ch->metadata, " ");
3616 if(ic->nb_programs) {
3617 int j, k, total = 0;
3618 for(j=0; j<ic->nb_programs; j++) {
3619 AVDictionaryEntry *name = av_dict_get(ic->programs[j]->metadata,
3621 av_log(NULL, AV_LOG_INFO, " Program %d %s\n", ic->programs[j]->id,
3622 name ? name->value : "");
3623 dump_metadata(NULL, ic->programs[j]->metadata, " ");
3624 for(k=0; k<ic->programs[j]->nb_stream_indexes; k++) {
3625 dump_stream_format(ic, ic->programs[j]->stream_index[k], index, is_output);
3626 printed[ic->programs[j]->stream_index[k]] = 1;
3628 total += ic->programs[j]->nb_stream_indexes;
3630 if (total < ic->nb_streams)
3631 av_log(NULL, AV_LOG_INFO, " No Program\n");
3633 for(i=0;i<ic->nb_streams;i++)
3635 dump_stream_format(ic, i, index, is_output);
3640 uint64_t ff_ntp_time(void)
3642 return (av_gettime() / 1000) * 1000 + NTP_OFFSET_US;
3645 int av_get_frame_filename(char *buf, int buf_size,
3646 const char *path, int number)
3649 char *q, buf1[20], c;
3650 int nd, len, percentd_found;
3662 while (av_isdigit(*p)) {
3663 nd = nd * 10 + *p++ - '0';
3666 } while (av_isdigit(c));
3675 snprintf(buf1, sizeof(buf1), "%0*d", nd, number);
3677 if ((q - buf + len) > buf_size - 1)
3679 memcpy(q, buf1, len);
3687 if ((q - buf) < buf_size - 1)
3691 if (!percentd_found)
3700 static void hex_dump_internal(void *avcl, FILE *f, int level,
3701 const uint8_t *buf, int size)
3704 #define PRINT(...) do { if (!f) av_log(avcl, level, __VA_ARGS__); else fprintf(f, __VA_ARGS__); } while(0)
3706 for(i=0;i<size;i+=16) {
3713 PRINT(" %02x", buf[i+j]);
3718 for(j=0;j<len;j++) {
3720 if (c < ' ' || c > '~')
3729 void av_hex_dump(FILE *f, const uint8_t *buf, int size)
3731 hex_dump_internal(NULL, f, 0, buf, size);
3734 void av_hex_dump_log(void *avcl, int level, const uint8_t *buf, int size)
3736 hex_dump_internal(avcl, NULL, level, buf, size);
3739 static void pkt_dump_internal(void *avcl, FILE *f, int level, AVPacket *pkt, int dump_payload, AVRational time_base)
3741 #define PRINT(...) do { if (!f) av_log(avcl, level, __VA_ARGS__); else fprintf(f, __VA_ARGS__); } while(0)
3742 PRINT("stream #%d:\n", pkt->stream_index);
3743 PRINT(" keyframe=%d\n", ((pkt->flags & AV_PKT_FLAG_KEY) != 0));
3744 PRINT(" duration=%0.3f\n", pkt->duration * av_q2d(time_base));
3745 /* DTS is _always_ valid after av_read_frame() */
3747 if (pkt->dts == AV_NOPTS_VALUE)
3750 PRINT("%0.3f", pkt->dts * av_q2d(time_base));
3751 /* PTS may not be known if B-frames are present. */
3753 if (pkt->pts == AV_NOPTS_VALUE)
3756 PRINT("%0.3f", pkt->pts * av_q2d(time_base));
3758 PRINT(" size=%d\n", pkt->size);
3761 av_hex_dump(f, pkt->data, pkt->size);
3764 void av_pkt_dump2(FILE *f, AVPacket *pkt, int dump_payload, AVStream *st)
3766 pkt_dump_internal(NULL, f, 0, pkt, dump_payload, st->time_base);
3769 void av_pkt_dump_log2(void *avcl, int level, AVPacket *pkt, int dump_payload,
3772 pkt_dump_internal(avcl, NULL, level, pkt, dump_payload, st->time_base);
3775 void av_url_split(char *proto, int proto_size,
3776 char *authorization, int authorization_size,
3777 char *hostname, int hostname_size,
3779 char *path, int path_size,
3782 const char *p, *ls, *ls2, *at, *at2, *col, *brk;
3784 if (port_ptr) *port_ptr = -1;
3785 if (proto_size > 0) proto[0] = 0;
3786 if (authorization_size > 0) authorization[0] = 0;
3787 if (hostname_size > 0) hostname[0] = 0;
3788 if (path_size > 0) path[0] = 0;
3790 /* parse protocol */
3791 if ((p = strchr(url, ':'))) {
3792 av_strlcpy(proto, url, FFMIN(proto_size, p + 1 - url));
3797 /* no protocol means plain filename */
3798 av_strlcpy(path, url, path_size);
3802 /* separate path from hostname */
3803 ls = strchr(p, '/');
3804 ls2 = strchr(p, '?');
3808 ls = FFMIN(ls, ls2);
3810 av_strlcpy(path, ls, path_size);
3812 ls = &p[strlen(p)]; // XXX
3814 /* the rest is hostname, use that to parse auth/port */
3816 /* authorization (user[:pass]@hostname) */
3818 while ((at = strchr(p, '@')) && at < ls) {
3819 av_strlcpy(authorization, at2,
3820 FFMIN(authorization_size, at + 1 - at2));
3821 p = at + 1; /* skip '@' */
3824 if (*p == '[' && (brk = strchr(p, ']')) && brk < ls) {
3826 av_strlcpy(hostname, p + 1,
3827 FFMIN(hostname_size, brk - p));
3828 if (brk[1] == ':' && port_ptr)
3829 *port_ptr = atoi(brk + 2);
3830 } else if ((col = strchr(p, ':')) && col < ls) {
3831 av_strlcpy(hostname, p,
3832 FFMIN(col + 1 - p, hostname_size));
3833 if (port_ptr) *port_ptr = atoi(col + 1);
3835 av_strlcpy(hostname, p,
3836 FFMIN(ls + 1 - p, hostname_size));
3840 char *ff_data_to_hex(char *buff, const uint8_t *src, int s, int lowercase)
3843 static const char hex_table_uc[16] = { '0', '1', '2', '3',
3846 'C', 'D', 'E', 'F' };
3847 static const char hex_table_lc[16] = { '0', '1', '2', '3',
3850 'c', 'd', 'e', 'f' };
3851 const char *hex_table = lowercase ? hex_table_lc : hex_table_uc;
3853 for(i = 0; i < s; i++) {
3854 buff[i * 2] = hex_table[src[i] >> 4];
3855 buff[i * 2 + 1] = hex_table[src[i] & 0xF];
3861 int ff_hex_to_data(uint8_t *data, const char *p)
3868 p += strspn(p, SPACE_CHARS);
3871 c = av_toupper((unsigned char) *p++);
3872 if (c >= '0' && c <= '9')
3874 else if (c >= 'A' && c <= 'F')
3889 #if FF_API_SET_PTS_INFO
3890 void av_set_pts_info(AVStream *s, int pts_wrap_bits,
3891 unsigned int pts_num, unsigned int pts_den)
3893 avpriv_set_pts_info(s, pts_wrap_bits, pts_num, pts_den);
3897 void avpriv_set_pts_info(AVStream *s, int pts_wrap_bits,
3898 unsigned int pts_num, unsigned int pts_den)
3901 if(av_reduce(&new_tb.num, &new_tb.den, pts_num, pts_den, INT_MAX)){
3902 if(new_tb.num != pts_num)
3903 av_log(NULL, AV_LOG_DEBUG, "st:%d removing common factor %d from timebase\n", s->index, pts_num/new_tb.num);
3905 av_log(NULL, AV_LOG_WARNING, "st:%d has too large timebase, reducing\n", s->index);
3907 if(new_tb.num <= 0 || new_tb.den <= 0) {
3908 av_log(NULL, AV_LOG_ERROR, "Ignoring attempt to set invalid timebase %d/%d for st:%d\n", new_tb.num, new_tb.den, s->index);
3911 s->time_base = new_tb;
3912 av_codec_set_pkt_timebase(s->codec, new_tb);
3913 s->pts_wrap_bits = pts_wrap_bits;
3916 void ff_parse_key_value(const char *str, ff_parse_key_val_cb callback_get_buf,
3919 const char *ptr = str;
3921 /* Parse key=value pairs. */
3924 char *dest = NULL, *dest_end;
3925 int key_len, dest_len = 0;
3927 /* Skip whitespace and potential commas. */
3928 while (*ptr && (av_isspace(*ptr) || *ptr == ','))
3935 if (!(ptr = strchr(key, '=')))
3938 key_len = ptr - key;
3940 callback_get_buf(context, key, key_len, &dest, &dest_len);
3941 dest_end = dest + dest_len - 1;
3945 while (*ptr && *ptr != '\"') {
3949 if (dest && dest < dest_end)
3953 if (dest && dest < dest_end)
3961 for (; *ptr && !(av_isspace(*ptr) || *ptr == ','); ptr++)
3962 if (dest && dest < dest_end)
3970 int ff_find_stream_index(AVFormatContext *s, int id)
3973 for (i = 0; i < s->nb_streams; i++) {
3974 if (s->streams[i]->id == id)
3980 int64_t ff_iso8601_to_unix_time(const char *datestr)
3982 struct tm time1 = {0}, time2 = {0};
3984 ret1 = av_small_strptime(datestr, "%Y - %m - %d %H:%M:%S", &time1);
3985 ret2 = av_small_strptime(datestr, "%Y - %m - %dT%H:%M:%S", &time2);
3987 return av_timegm(&time2);
3989 return av_timegm(&time1);
3992 int avformat_query_codec(AVOutputFormat *ofmt, enum AVCodecID codec_id, int std_compliance)
3995 if (ofmt->query_codec)
3996 return ofmt->query_codec(codec_id, std_compliance);
3997 else if (ofmt->codec_tag)
3998 return !!av_codec_get_tag(ofmt->codec_tag, codec_id);
3999 else if (codec_id == ofmt->video_codec || codec_id == ofmt->audio_codec ||
4000 codec_id == ofmt->subtitle_codec)
4003 return AVERROR_PATCHWELCOME;
4006 int avformat_network_init(void)
4010 ff_network_inited_globally = 1;
4011 if ((ret = ff_network_init()) < 0)
4018 int avformat_network_deinit(void)
4027 int ff_add_param_change(AVPacket *pkt, int32_t channels,
4028 uint64_t channel_layout, int32_t sample_rate,
4029 int32_t width, int32_t height)
4035 return AVERROR(EINVAL);
4038 flags |= AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT;
4040 if (channel_layout) {
4042 flags |= AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT;
4046 flags |= AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE;
4048 if (width || height) {
4050 flags |= AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS;
4052 data = av_packet_new_side_data(pkt, AV_PKT_DATA_PARAM_CHANGE, size);
4054 return AVERROR(ENOMEM);
4055 bytestream_put_le32(&data, flags);
4057 bytestream_put_le32(&data, channels);
4059 bytestream_put_le64(&data, channel_layout);
4061 bytestream_put_le32(&data, sample_rate);
4062 if (width || height) {
4063 bytestream_put_le32(&data, width);
4064 bytestream_put_le32(&data, height);
4069 AVRational av_guess_sample_aspect_ratio(AVFormatContext *format, AVStream *stream, AVFrame *frame)
4071 AVRational undef = {0, 1};
4072 AVRational stream_sample_aspect_ratio = stream ? stream->sample_aspect_ratio : undef;
4073 AVRational codec_sample_aspect_ratio = stream && stream->codec ? stream->codec->sample_aspect_ratio : undef;
4074 AVRational frame_sample_aspect_ratio = frame ? frame->sample_aspect_ratio : codec_sample_aspect_ratio;
4076 av_reduce(&stream_sample_aspect_ratio.num, &stream_sample_aspect_ratio.den,
4077 stream_sample_aspect_ratio.num, stream_sample_aspect_ratio.den, INT_MAX);
4078 if (stream_sample_aspect_ratio.num <= 0 || stream_sample_aspect_ratio.den <= 0)
4079 stream_sample_aspect_ratio = undef;
4081 av_reduce(&frame_sample_aspect_ratio.num, &frame_sample_aspect_ratio.den,
4082 frame_sample_aspect_ratio.num, frame_sample_aspect_ratio.den, INT_MAX);
4083 if (frame_sample_aspect_ratio.num <= 0 || frame_sample_aspect_ratio.den <= 0)
4084 frame_sample_aspect_ratio = undef;
4086 if (stream_sample_aspect_ratio.num)
4087 return stream_sample_aspect_ratio;
4089 return frame_sample_aspect_ratio;
4092 AVRational av_guess_frame_rate(AVFormatContext *format, AVStream *st, AVFrame *frame)
4094 AVRational fr = st->r_frame_rate;
4096 if (st->codec->ticks_per_frame > 1) {
4097 AVRational codec_fr = av_inv_q(st->codec->time_base);
4098 AVRational avg_fr = st->avg_frame_rate;
4099 codec_fr.den *= st->codec->ticks_per_frame;
4100 if ( codec_fr.num > 0 && codec_fr.den > 0 && av_q2d(codec_fr) < av_q2d(fr)*0.7
4101 && fabs(1.0 - av_q2d(av_div_q(avg_fr, fr))) > 0.1)
4108 int avformat_match_stream_specifier(AVFormatContext *s, AVStream *st,
4111 if (*spec <= '9' && *spec >= '0') /* opt:index */
4112 return strtol(spec, NULL, 0) == st->index;
4113 else if (*spec == 'v' || *spec == 'a' || *spec == 's' || *spec == 'd' ||
4114 *spec == 't') { /* opt:[vasdt] */
4115 enum AVMediaType type;
4118 case 'v': type = AVMEDIA_TYPE_VIDEO; break;
4119 case 'a': type = AVMEDIA_TYPE_AUDIO; break;
4120 case 's': type = AVMEDIA_TYPE_SUBTITLE; break;
4121 case 'd': type = AVMEDIA_TYPE_DATA; break;
4122 case 't': type = AVMEDIA_TYPE_ATTACHMENT; break;
4123 default: av_assert0(0);
4125 if (type != st->codec->codec_type)
4127 if (*spec++ == ':') { /* possibly followed by :index */
4128 int i, index = strtol(spec, NULL, 0);
4129 for (i = 0; i < s->nb_streams; i++)
4130 if (s->streams[i]->codec->codec_type == type && index-- == 0)
4131 return i == st->index;
4135 } else if (*spec == 'p' && *(spec + 1) == ':') {
4139 prog_id = strtol(spec, &endptr, 0);
4140 for (i = 0; i < s->nb_programs; i++) {
4141 if (s->programs[i]->id != prog_id)
4144 if (*endptr++ == ':') {
4145 int stream_idx = strtol(endptr, NULL, 0);
4146 return stream_idx >= 0 &&
4147 stream_idx < s->programs[i]->nb_stream_indexes &&
4148 st->index == s->programs[i]->stream_index[stream_idx];
4151 for (j = 0; j < s->programs[i]->nb_stream_indexes; j++)
4152 if (st->index == s->programs[i]->stream_index[j])
4156 } else if (*spec == '#') {
4159 sid = strtol(spec + 1, &endptr, 0);
4161 return st->id == sid;
4162 } else if (!*spec) /* empty specifier, matches everything */
4165 av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
4166 return AVERROR(EINVAL);
4169 void ff_generate_avci_extradata(AVStream *st)
4171 static const uint8_t avci100_1080p_extradata[] = {
4173 0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
4174 0xb6, 0xd4, 0x20, 0x22, 0x33, 0x19, 0xc6, 0x63,
4175 0x23, 0x21, 0x01, 0x11, 0x98, 0xce, 0x33, 0x19,
4176 0x18, 0x21, 0x02, 0x56, 0xb9, 0x3d, 0x7d, 0x7e,
4177 0x4f, 0xe3, 0x3f, 0x11, 0xf1, 0x9e, 0x08, 0xb8,
4178 0x8c, 0x54, 0x43, 0xc0, 0x78, 0x02, 0x27, 0xe2,
4179 0x70, 0x1e, 0x30, 0x10, 0x10, 0x14, 0x00, 0x00,
4180 0x03, 0x00, 0x04, 0x00, 0x00, 0x03, 0x00, 0xca,
4181 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
4183 0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x33, 0x48,
4186 static const uint8_t avci100_1080i_extradata[] = {
4188 0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
4189 0xb6, 0xd4, 0x20, 0x22, 0x33, 0x19, 0xc6, 0x63,
4190 0x23, 0x21, 0x01, 0x11, 0x98, 0xce, 0x33, 0x19,
4191 0x18, 0x21, 0x03, 0x3a, 0x46, 0x65, 0x6a, 0x65,
4192 0x24, 0xad, 0xe9, 0x12, 0x32, 0x14, 0x1a, 0x26,
4193 0x34, 0xad, 0xa4, 0x41, 0x82, 0x23, 0x01, 0x50,
4194 0x2b, 0x1a, 0x24, 0x69, 0x48, 0x30, 0x40, 0x2e,
4195 0x11, 0x12, 0x08, 0xc6, 0x8c, 0x04, 0x41, 0x28,
4196 0x4c, 0x34, 0xf0, 0x1e, 0x01, 0x13, 0xf2, 0xe0,
4197 0x3c, 0x60, 0x20, 0x20, 0x28, 0x00, 0x00, 0x03,
4198 0x00, 0x08, 0x00, 0x00, 0x03, 0x01, 0x94, 0x00,
4200 0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x33, 0x48,
4203 static const uint8_t avci50_1080i_extradata[] = {
4205 0x00, 0x00, 0x00, 0x01, 0x67, 0x6e, 0x10, 0x28,
4206 0xa6, 0xd4, 0x20, 0x32, 0x33, 0x0c, 0x71, 0x18,
4207 0x88, 0x62, 0x10, 0x19, 0x19, 0x86, 0x38, 0x8c,
4208 0x44, 0x30, 0x21, 0x02, 0x56, 0x4e, 0x6e, 0x61,
4209 0x87, 0x3e, 0x73, 0x4d, 0x98, 0x0c, 0x03, 0x06,
4210 0x9c, 0x0b, 0x73, 0xe6, 0xc0, 0xb5, 0x18, 0x63,
4211 0x0d, 0x39, 0xe0, 0x5b, 0x02, 0xd4, 0xc6, 0x19,
4212 0x1a, 0x79, 0x8c, 0x32, 0x34, 0x24, 0xf0, 0x16,
4213 0x81, 0x13, 0xf7, 0xff, 0x80, 0x02, 0x00, 0x01,
4214 0xf1, 0x80, 0x80, 0x80, 0xa0, 0x00, 0x00, 0x03,
4215 0x00, 0x20, 0x00, 0x00, 0x06, 0x50, 0x80, 0x00,
4217 0x00, 0x00, 0x00, 0x01, 0x68, 0xee, 0x31, 0x12,
4220 static const uint8_t avci100_720p_extradata[] = {
4222 0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
4223 0xb6, 0xd4, 0x20, 0x2a, 0x33, 0x1d, 0xc7, 0x62,
4224 0xa1, 0x08, 0x40, 0x54, 0x66, 0x3b, 0x8e, 0xc5,
4225 0x42, 0x02, 0x10, 0x25, 0x64, 0x2c, 0x89, 0xe8,
4226 0x85, 0xe4, 0x21, 0x4b, 0x90, 0x83, 0x06, 0x95,
4227 0xd1, 0x06, 0x46, 0x97, 0x20, 0xc8, 0xd7, 0x43,
4228 0x08, 0x11, 0xc2, 0x1e, 0x4c, 0x91, 0x0f, 0x01,
4229 0x40, 0x16, 0xec, 0x07, 0x8c, 0x04, 0x04, 0x05,
4230 0x00, 0x00, 0x03, 0x00, 0x01, 0x00, 0x00, 0x03,
4231 0x00, 0x64, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00,
4233 0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x31, 0x12,
4237 const uint8_t *data = 0;
4238 if (st->codec->width == 1920) {
4239 if (st->codec->field_order == AV_FIELD_PROGRESSIVE) {
4240 data = avci100_1080p_extradata;
4241 size = sizeof(avci100_1080p_extradata);
4243 data = avci100_1080i_extradata;
4244 size = sizeof(avci100_1080i_extradata);
4246 } else if (st->codec->width == 1440) {
4247 data = avci50_1080i_extradata;
4248 size = sizeof(avci50_1080i_extradata);
4249 } else if (st->codec->width == 1280) {
4250 data = avci100_720p_extradata;
4251 size = sizeof(avci100_720p_extradata);
4255 av_freep(&st->codec->extradata);
4256 if (ff_alloc_extradata(st->codec, size))
4258 memcpy(st->codec->extradata, data, size);