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 (st->codec->codec_id != AV_CODEC_ID_H264 && pc && pc->pict_type == AV_PICTURE_TYPE_B)
1043 //FIXME Set low_delay = 0 when has_b_frames = 1
1044 st->codec->has_b_frames = 1;
1046 /* do we have a video B-frame ? */
1047 delay= st->codec->has_b_frames;
1048 presentation_delayed = 0;
1050 /* XXX: need has_b_frame, but cannot get it if the codec is
1053 pc && pc->pict_type != AV_PICTURE_TYPE_B)
1054 presentation_delayed = 1;
1056 if (pkt->pts != AV_NOPTS_VALUE && pkt->dts != AV_NOPTS_VALUE &&
1057 st->pts_wrap_bits < 63 &&
1058 pkt->dts - (1LL << (st->pts_wrap_bits - 1)) > pkt->pts) {
1059 if(is_relative(st->cur_dts) || pkt->dts - (1LL<<(st->pts_wrap_bits-1)) > st->cur_dts) {
1060 pkt->dts -= 1LL<<st->pts_wrap_bits;
1062 pkt->pts += 1LL<<st->pts_wrap_bits;
1065 // some mpeg2 in mpeg-ps lack dts (issue171 / input_file.mpg)
1066 // we take the conservative approach and discard both
1067 // Note, if this is misbehaving for a H.264 file then possibly presentation_delayed is not set correctly.
1068 if(delay==1 && pkt->dts == pkt->pts && pkt->dts != AV_NOPTS_VALUE && presentation_delayed){
1069 av_log(s, AV_LOG_DEBUG, "invalid dts/pts combination %"PRIi64"\n", pkt->dts);
1070 if(strcmp(s->iformat->name, "mov,mp4,m4a,3gp,3g2,mj2")) // otherwise we discard correct timestamps for vc1-wmapro.ism
1071 pkt->dts= AV_NOPTS_VALUE;
1074 if (pkt->duration == 0) {
1075 ff_compute_frame_duration(&num, &den, st, pc, pkt);
1077 pkt->duration = av_rescale_rnd(1, num * (int64_t)st->time_base.den, den * (int64_t)st->time_base.num, AV_ROUND_DOWN);
1080 if(pkt->duration != 0 && (s->packet_buffer || s->parse_queue))
1081 update_initial_durations(s, st, pkt->stream_index, pkt->duration);
1083 /* correct timestamps with byte offset if demuxers only have timestamps
1084 on packet boundaries */
1085 if(pc && st->need_parsing == AVSTREAM_PARSE_TIMESTAMPS && pkt->size){
1086 /* this will estimate bitrate based on this frame's duration and size */
1087 offset = av_rescale(pc->offset, pkt->duration, pkt->size);
1088 if(pkt->pts != AV_NOPTS_VALUE)
1090 if(pkt->dts != AV_NOPTS_VALUE)
1094 if (pc && pc->dts_sync_point >= 0) {
1095 // we have synchronization info from the parser
1096 int64_t den = st->codec->time_base.den * (int64_t) st->time_base.num;
1098 int64_t num = st->codec->time_base.num * (int64_t) st->time_base.den;
1099 if (pkt->dts != AV_NOPTS_VALUE) {
1100 // got DTS from the stream, update reference timestamp
1101 st->reference_dts = pkt->dts - pc->dts_ref_dts_delta * num / den;
1102 } else if (st->reference_dts != AV_NOPTS_VALUE) {
1103 // compute DTS based on reference timestamp
1104 pkt->dts = st->reference_dts + pc->dts_ref_dts_delta * num / den;
1107 if (st->reference_dts != AV_NOPTS_VALUE && pkt->pts == AV_NOPTS_VALUE)
1108 pkt->pts = pkt->dts + pc->pts_dts_delta * num / den;
1110 if (pc->dts_sync_point > 0)
1111 st->reference_dts = pkt->dts; // new reference
1115 /* This may be redundant, but it should not hurt. */
1116 if(pkt->dts != AV_NOPTS_VALUE && pkt->pts != AV_NOPTS_VALUE && pkt->pts > pkt->dts)
1117 presentation_delayed = 1;
1119 av_dlog(NULL, "IN delayed:%d pts:%s, dts:%s cur_dts:%s st:%d pc:%p duration:%d\n",
1120 presentation_delayed, av_ts2str(pkt->pts), av_ts2str(pkt->dts), av_ts2str(st->cur_dts), pkt->stream_index, pc, pkt->duration);
1121 /* interpolate PTS and DTS if they are not present */
1122 //We skip H264 currently because delay and has_b_frames are not reliably set
1123 if((delay==0 || (delay==1 && pc)) && st->codec->codec_id != AV_CODEC_ID_H264){
1124 if (presentation_delayed) {
1125 /* DTS = decompression timestamp */
1126 /* PTS = presentation timestamp */
1127 if (pkt->dts == AV_NOPTS_VALUE)
1128 pkt->dts = st->last_IP_pts;
1129 update_initial_timestamps(s, pkt->stream_index, pkt->dts, pkt->pts, pkt);
1130 if (pkt->dts == AV_NOPTS_VALUE)
1131 pkt->dts = st->cur_dts;
1133 /* this is tricky: the dts must be incremented by the duration
1134 of the frame we are displaying, i.e. the last I- or P-frame */
1135 if (st->last_IP_duration == 0)
1136 st->last_IP_duration = pkt->duration;
1137 if(pkt->dts != AV_NOPTS_VALUE)
1138 st->cur_dts = pkt->dts + st->last_IP_duration;
1139 st->last_IP_duration = pkt->duration;
1140 st->last_IP_pts= pkt->pts;
1141 /* cannot compute PTS if not present (we can compute it only
1142 by knowing the future */
1143 } else if (pkt->pts != AV_NOPTS_VALUE ||
1144 pkt->dts != AV_NOPTS_VALUE ||
1146 int duration = pkt->duration;
1148 /* presentation is not delayed : PTS and DTS are the same */
1149 if (pkt->pts == AV_NOPTS_VALUE)
1150 pkt->pts = pkt->dts;
1151 update_initial_timestamps(s, pkt->stream_index, pkt->pts,
1153 if (pkt->pts == AV_NOPTS_VALUE)
1154 pkt->pts = st->cur_dts;
1155 pkt->dts = pkt->pts;
1156 if (pkt->pts != AV_NOPTS_VALUE)
1157 st->cur_dts = pkt->pts + duration;
1161 if(pkt->pts != AV_NOPTS_VALUE && delay <= MAX_REORDER_DELAY && has_decode_delay_been_guessed(st)){
1162 st->pts_buffer[0]= pkt->pts;
1163 for(i=0; i<delay && st->pts_buffer[i] > st->pts_buffer[i+1]; i++)
1164 FFSWAP(int64_t, st->pts_buffer[i], st->pts_buffer[i+1]);
1165 if(pkt->dts == AV_NOPTS_VALUE)
1166 pkt->dts= st->pts_buffer[0];
1168 if(st->codec->codec_id == AV_CODEC_ID_H264){ // we skipped it above so we try here
1169 update_initial_timestamps(s, pkt->stream_index, pkt->dts, pkt->pts, pkt); // this should happen on the first packet
1171 if(pkt->dts > st->cur_dts)
1172 st->cur_dts = pkt->dts;
1174 av_dlog(NULL, "OUTdelayed:%d/%d pts:%s, dts:%s cur_dts:%s\n",
1175 presentation_delayed, delay, av_ts2str(pkt->pts), av_ts2str(pkt->dts), av_ts2str(st->cur_dts));
1178 if (is_intra_only(st->codec))
1179 pkt->flags |= AV_PKT_FLAG_KEY;
1181 pkt->convergence_duration = pc->convergence_duration;
1184 static void free_packet_buffer(AVPacketList **pkt_buf, AVPacketList **pkt_buf_end)
1187 AVPacketList *pktl = *pkt_buf;
1188 *pkt_buf = pktl->next;
1189 av_free_packet(&pktl->pkt);
1192 *pkt_buf_end = NULL;
1196 * Parse a packet, add all split parts to parse_queue
1198 * @param pkt packet to parse, NULL when flushing the parser at end of stream
1200 static int parse_packet(AVFormatContext *s, AVPacket *pkt, int stream_index)
1202 AVPacket out_pkt = { 0 }, flush_pkt = { 0 };
1203 AVStream *st = s->streams[stream_index];
1204 uint8_t *data = pkt ? pkt->data : NULL;
1205 int size = pkt ? pkt->size : 0;
1206 int ret = 0, got_output = 0;
1209 av_init_packet(&flush_pkt);
1212 } else if (!size && st->parser->flags & PARSER_FLAG_COMPLETE_FRAMES) {
1213 // preserve 0-size sync packets
1214 compute_pkt_fields(s, st, st->parser, pkt);
1217 while (size > 0 || (pkt == &flush_pkt && got_output)) {
1220 av_init_packet(&out_pkt);
1221 len = av_parser_parse2(st->parser, st->codec,
1222 &out_pkt.data, &out_pkt.size, data, size,
1223 pkt->pts, pkt->dts, pkt->pos);
1225 pkt->pts = pkt->dts = AV_NOPTS_VALUE;
1227 /* increment read pointer */
1231 got_output = !!out_pkt.size;
1236 if (pkt->side_data) {
1237 out_pkt.side_data = pkt->side_data;
1238 out_pkt.side_data_elems = pkt->side_data_elems;
1239 pkt->side_data = NULL;
1240 pkt->side_data_elems = 0;
1243 /* set the duration */
1244 out_pkt.duration = 0;
1245 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1246 if (st->codec->sample_rate > 0) {
1247 out_pkt.duration = av_rescale_q_rnd(st->parser->duration,
1248 (AVRational){ 1, st->codec->sample_rate },
1252 } else if (st->codec->time_base.num != 0 &&
1253 st->codec->time_base.den != 0) {
1254 out_pkt.duration = av_rescale_q_rnd(st->parser->duration,
1255 st->codec->time_base,
1260 out_pkt.stream_index = st->index;
1261 out_pkt.pts = st->parser->pts;
1262 out_pkt.dts = st->parser->dts;
1263 out_pkt.pos = st->parser->pos;
1265 if(st->need_parsing == AVSTREAM_PARSE_FULL_RAW)
1266 out_pkt.pos = st->parser->frame_offset;
1268 if (st->parser->key_frame == 1 ||
1269 (st->parser->key_frame == -1 &&
1270 st->parser->pict_type == AV_PICTURE_TYPE_I))
1271 out_pkt.flags |= AV_PKT_FLAG_KEY;
1273 if(st->parser->key_frame == -1 && st->parser->pict_type==AV_PICTURE_TYPE_NONE && (pkt->flags&AV_PKT_FLAG_KEY))
1274 out_pkt.flags |= AV_PKT_FLAG_KEY;
1276 compute_pkt_fields(s, st, st->parser, &out_pkt);
1278 if (out_pkt.data == pkt->data && out_pkt.size == pkt->size) {
1279 out_pkt.buf = pkt->buf;
1281 #if FF_API_DESTRUCT_PACKET
1282 FF_DISABLE_DEPRECATION_WARNINGS
1283 out_pkt.destruct = pkt->destruct;
1284 pkt->destruct = NULL;
1285 FF_ENABLE_DEPRECATION_WARNINGS
1288 if ((ret = av_dup_packet(&out_pkt)) < 0)
1291 if (!add_to_pktbuf(&s->parse_queue, &out_pkt, &s->parse_queue_end)) {
1292 av_free_packet(&out_pkt);
1293 ret = AVERROR(ENOMEM);
1299 /* end of the stream => close and free the parser */
1300 if (pkt == &flush_pkt) {
1301 av_parser_close(st->parser);
1306 av_free_packet(pkt);
1310 static int read_from_packet_buffer(AVPacketList **pkt_buffer,
1311 AVPacketList **pkt_buffer_end,
1315 av_assert0(*pkt_buffer);
1318 *pkt_buffer = pktl->next;
1320 *pkt_buffer_end = NULL;
1325 static int read_frame_internal(AVFormatContext *s, AVPacket *pkt)
1327 int ret = 0, i, got_packet = 0;
1329 av_init_packet(pkt);
1331 while (!got_packet && !s->parse_queue) {
1335 /* read next packet */
1336 ret = ff_read_packet(s, &cur_pkt);
1338 if (ret == AVERROR(EAGAIN))
1340 /* flush the parsers */
1341 for(i = 0; i < s->nb_streams; i++) {
1343 if (st->parser && st->need_parsing)
1344 parse_packet(s, NULL, st->index);
1346 /* all remaining packets are now in parse_queue =>
1347 * really terminate parsing */
1351 st = s->streams[cur_pkt.stream_index];
1353 if (cur_pkt.pts != AV_NOPTS_VALUE &&
1354 cur_pkt.dts != AV_NOPTS_VALUE &&
1355 cur_pkt.pts < cur_pkt.dts) {
1356 av_log(s, AV_LOG_WARNING, "Invalid timestamps stream=%d, pts=%s, dts=%s, size=%d\n",
1357 cur_pkt.stream_index,
1358 av_ts2str(cur_pkt.pts),
1359 av_ts2str(cur_pkt.dts),
1362 if (s->debug & FF_FDEBUG_TS)
1363 av_log(s, AV_LOG_DEBUG, "ff_read_packet stream=%d, pts=%s, dts=%s, size=%d, duration=%d, flags=%d\n",
1364 cur_pkt.stream_index,
1365 av_ts2str(cur_pkt.pts),
1366 av_ts2str(cur_pkt.dts),
1371 if (st->need_parsing && !st->parser && !(s->flags & AVFMT_FLAG_NOPARSE)) {
1372 st->parser = av_parser_init(st->codec->codec_id);
1374 av_log(s, AV_LOG_VERBOSE, "parser not found for codec "
1375 "%s, packets or times may be invalid.\n",
1376 avcodec_get_name(st->codec->codec_id));
1377 /* no parser available: just output the raw packets */
1378 st->need_parsing = AVSTREAM_PARSE_NONE;
1379 } else if(st->need_parsing == AVSTREAM_PARSE_HEADERS) {
1380 st->parser->flags |= PARSER_FLAG_COMPLETE_FRAMES;
1381 } else if(st->need_parsing == AVSTREAM_PARSE_FULL_ONCE) {
1382 st->parser->flags |= PARSER_FLAG_ONCE;
1383 } else if(st->need_parsing == AVSTREAM_PARSE_FULL_RAW) {
1384 st->parser->flags |= PARSER_FLAG_USE_CODEC_TS;
1388 if (!st->need_parsing || !st->parser) {
1389 /* no parsing needed: we just output the packet as is */
1391 compute_pkt_fields(s, st, NULL, pkt);
1392 if ((s->iformat->flags & AVFMT_GENERIC_INDEX) &&
1393 (pkt->flags & AV_PKT_FLAG_KEY) && pkt->dts != AV_NOPTS_VALUE) {
1394 ff_reduce_index(s, st->index);
1395 av_add_index_entry(st, pkt->pos, pkt->dts, 0, 0, AVINDEX_KEYFRAME);
1398 } else if (st->discard < AVDISCARD_ALL) {
1399 if ((ret = parse_packet(s, &cur_pkt, cur_pkt.stream_index)) < 0)
1403 av_free_packet(&cur_pkt);
1405 if (pkt->flags & AV_PKT_FLAG_KEY)
1406 st->skip_to_keyframe = 0;
1407 if (st->skip_to_keyframe) {
1408 av_free_packet(&cur_pkt);
1416 if (!got_packet && s->parse_queue)
1417 ret = read_from_packet_buffer(&s->parse_queue, &s->parse_queue_end, pkt);
1419 if(s->debug & FF_FDEBUG_TS)
1420 av_log(s, AV_LOG_DEBUG, "read_frame_internal stream=%d, pts=%s, dts=%s, size=%d, duration=%d, flags=%d\n",
1422 av_ts2str(pkt->pts),
1423 av_ts2str(pkt->dts),
1431 int av_read_frame(AVFormatContext *s, AVPacket *pkt)
1433 const int genpts = s->flags & AVFMT_FLAG_GENPTS;
1439 ret = s->packet_buffer ?
1440 read_from_packet_buffer(&s->packet_buffer, &s->packet_buffer_end, pkt) :
1441 read_frame_internal(s, pkt);
1448 AVPacketList *pktl = s->packet_buffer;
1451 AVPacket *next_pkt = &pktl->pkt;
1453 if (next_pkt->dts != AV_NOPTS_VALUE) {
1454 int wrap_bits = s->streams[next_pkt->stream_index]->pts_wrap_bits;
1455 // last dts seen for this stream. if any of packets following
1456 // current one had no dts, we will set this to AV_NOPTS_VALUE.
1457 int64_t last_dts = next_pkt->dts;
1458 while (pktl && next_pkt->pts == AV_NOPTS_VALUE) {
1459 if (pktl->pkt.stream_index == next_pkt->stream_index &&
1460 (av_compare_mod(next_pkt->dts, pktl->pkt.dts, 2LL << (wrap_bits - 1)) < 0)) {
1461 if (av_compare_mod(pktl->pkt.pts, pktl->pkt.dts, 2LL << (wrap_bits - 1))) { //not b frame
1462 next_pkt->pts = pktl->pkt.dts;
1464 if (last_dts != AV_NOPTS_VALUE) {
1465 // Once last dts was set to AV_NOPTS_VALUE, we don't change it.
1466 last_dts = pktl->pkt.dts;
1471 if (eof && next_pkt->pts == AV_NOPTS_VALUE && last_dts != AV_NOPTS_VALUE) {
1472 // Fixing the last reference frame had none pts issue (For MXF etc).
1473 // We only do this when
1475 // 2. we are not able to resolve a pts value for current packet.
1476 // 3. the packets for this stream at the end of the files had valid dts.
1477 next_pkt->pts = last_dts + next_pkt->duration;
1479 pktl = s->packet_buffer;
1482 /* read packet from packet buffer, if there is data */
1483 if (!(next_pkt->pts == AV_NOPTS_VALUE &&
1484 next_pkt->dts != AV_NOPTS_VALUE && !eof)) {
1485 ret = read_from_packet_buffer(&s->packet_buffer,
1486 &s->packet_buffer_end, pkt);
1491 ret = read_frame_internal(s, pkt);
1493 if (pktl && ret != AVERROR(EAGAIN)) {
1500 if (av_dup_packet(add_to_pktbuf(&s->packet_buffer, pkt,
1501 &s->packet_buffer_end)) < 0)
1502 return AVERROR(ENOMEM);
1507 st = s->streams[pkt->stream_index];
1508 if (st->skip_samples) {
1509 uint8_t *p = av_packet_new_side_data(pkt, AV_PKT_DATA_SKIP_SAMPLES, 10);
1511 AV_WL32(p, st->skip_samples);
1512 av_log(s, AV_LOG_DEBUG, "demuxer injecting skip %d\n", st->skip_samples);
1514 st->skip_samples = 0;
1517 if ((s->iformat->flags & AVFMT_GENERIC_INDEX) && pkt->flags & AV_PKT_FLAG_KEY) {
1518 ff_reduce_index(s, st->index);
1519 av_add_index_entry(st, pkt->pos, pkt->dts, 0, 0, AVINDEX_KEYFRAME);
1522 if (is_relative(pkt->dts))
1523 pkt->dts -= RELATIVE_TS_BASE;
1524 if (is_relative(pkt->pts))
1525 pkt->pts -= RELATIVE_TS_BASE;
1530 /* XXX: suppress the packet queue */
1531 static void flush_packet_queue(AVFormatContext *s)
1533 free_packet_buffer(&s->parse_queue, &s->parse_queue_end);
1534 free_packet_buffer(&s->packet_buffer, &s->packet_buffer_end);
1535 free_packet_buffer(&s->raw_packet_buffer, &s->raw_packet_buffer_end);
1537 s->raw_packet_buffer_remaining_size = RAW_PACKET_BUFFER_SIZE;
1540 /*******************************************************/
1543 int av_find_default_stream_index(AVFormatContext *s)
1545 int first_audio_index = -1;
1549 if (s->nb_streams <= 0)
1551 for(i = 0; i < s->nb_streams; i++) {
1553 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1554 !(st->disposition & AV_DISPOSITION_ATTACHED_PIC)) {
1557 if (first_audio_index < 0 && st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1558 first_audio_index = i;
1560 return first_audio_index >= 0 ? first_audio_index : 0;
1564 * Flush the frame reader.
1566 void ff_read_frame_flush(AVFormatContext *s)
1571 flush_packet_queue(s);
1573 /* for each stream, reset read state */
1574 for(i = 0; i < s->nb_streams; i++) {
1578 av_parser_close(st->parser);
1581 st->last_IP_pts = AV_NOPTS_VALUE;
1582 if(st->first_dts == AV_NOPTS_VALUE) st->cur_dts = RELATIVE_TS_BASE;
1583 else st->cur_dts = AV_NOPTS_VALUE; /* we set the current DTS to an unspecified origin */
1584 st->reference_dts = AV_NOPTS_VALUE;
1586 st->probe_packets = MAX_PROBE_PACKETS;
1588 for(j=0; j<MAX_REORDER_DELAY+1; j++)
1589 st->pts_buffer[j]= AV_NOPTS_VALUE;
1593 void ff_update_cur_dts(AVFormatContext *s, AVStream *ref_st, int64_t timestamp)
1597 for(i = 0; i < s->nb_streams; i++) {
1598 AVStream *st = s->streams[i];
1600 st->cur_dts = av_rescale(timestamp,
1601 st->time_base.den * (int64_t)ref_st->time_base.num,
1602 st->time_base.num * (int64_t)ref_st->time_base.den);
1606 void ff_reduce_index(AVFormatContext *s, int stream_index)
1608 AVStream *st= s->streams[stream_index];
1609 unsigned int max_entries= s->max_index_size / sizeof(AVIndexEntry);
1611 if((unsigned)st->nb_index_entries >= max_entries){
1613 for(i=0; 2*i<st->nb_index_entries; i++)
1614 st->index_entries[i]= st->index_entries[2*i];
1615 st->nb_index_entries= i;
1619 int ff_add_index_entry(AVIndexEntry **index_entries,
1620 int *nb_index_entries,
1621 unsigned int *index_entries_allocated_size,
1622 int64_t pos, int64_t timestamp, int size, int distance, int flags)
1624 AVIndexEntry *entries, *ie;
1627 if((unsigned)*nb_index_entries + 1 >= UINT_MAX / sizeof(AVIndexEntry))
1630 if(timestamp == AV_NOPTS_VALUE)
1631 return AVERROR(EINVAL);
1633 if (size < 0 || size > 0x3FFFFFFF)
1634 return AVERROR(EINVAL);
1636 if (is_relative(timestamp)) //FIXME this maintains previous behavior but we should shift by the correct offset once known
1637 timestamp -= RELATIVE_TS_BASE;
1639 entries = av_fast_realloc(*index_entries,
1640 index_entries_allocated_size,
1641 (*nb_index_entries + 1) *
1642 sizeof(AVIndexEntry));
1646 *index_entries= entries;
1648 index= ff_index_search_timestamp(*index_entries, *nb_index_entries, timestamp, AVSEEK_FLAG_ANY);
1651 index= (*nb_index_entries)++;
1652 ie= &entries[index];
1653 av_assert0(index==0 || ie[-1].timestamp < timestamp);
1655 ie= &entries[index];
1656 if(ie->timestamp != timestamp){
1657 if(ie->timestamp <= timestamp)
1659 memmove(entries + index + 1, entries + index, sizeof(AVIndexEntry)*(*nb_index_entries - index));
1660 (*nb_index_entries)++;
1661 }else if(ie->pos == pos && distance < ie->min_distance) //do not reduce the distance
1662 distance= ie->min_distance;
1666 ie->timestamp = timestamp;
1667 ie->min_distance= distance;
1674 int av_add_index_entry(AVStream *st,
1675 int64_t pos, int64_t timestamp, int size, int distance, int flags)
1677 timestamp = wrap_timestamp(st, timestamp);
1678 return ff_add_index_entry(&st->index_entries, &st->nb_index_entries,
1679 &st->index_entries_allocated_size, pos,
1680 timestamp, size, distance, flags);
1683 int ff_index_search_timestamp(const AVIndexEntry *entries, int nb_entries,
1684 int64_t wanted_timestamp, int flags)
1692 //optimize appending index entries at the end
1693 if(b && entries[b-1].timestamp < wanted_timestamp)
1698 timestamp = entries[m].timestamp;
1699 if(timestamp >= wanted_timestamp)
1701 if(timestamp <= wanted_timestamp)
1704 m= (flags & AVSEEK_FLAG_BACKWARD) ? a : b;
1706 if(!(flags & AVSEEK_FLAG_ANY)){
1707 while(m>=0 && m<nb_entries && !(entries[m].flags & AVINDEX_KEYFRAME)){
1708 m += (flags & AVSEEK_FLAG_BACKWARD) ? -1 : 1;
1717 int av_index_search_timestamp(AVStream *st, int64_t wanted_timestamp,
1720 return ff_index_search_timestamp(st->index_entries, st->nb_index_entries,
1721 wanted_timestamp, flags);
1724 static int64_t ff_read_timestamp(AVFormatContext *s, int stream_index, int64_t *ppos, int64_t pos_limit,
1725 int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t ))
1727 int64_t ts = read_timestamp(s, stream_index, ppos, pos_limit);
1728 if (stream_index >= 0)
1729 ts = wrap_timestamp(s->streams[stream_index], ts);
1733 int ff_seek_frame_binary(AVFormatContext *s, int stream_index, int64_t target_ts, int flags)
1735 AVInputFormat *avif= s->iformat;
1736 int64_t av_uninit(pos_min), av_uninit(pos_max), pos, pos_limit;
1737 int64_t ts_min, ts_max, ts;
1742 if (stream_index < 0)
1745 av_dlog(s, "read_seek: %d %s\n", stream_index, av_ts2str(target_ts));
1748 ts_min= AV_NOPTS_VALUE;
1749 pos_limit= -1; //gcc falsely says it may be uninitialized
1751 st= s->streams[stream_index];
1752 if(st->index_entries){
1755 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()
1756 index= FFMAX(index, 0);
1757 e= &st->index_entries[index];
1759 if(e->timestamp <= target_ts || e->pos == e->min_distance){
1761 ts_min= e->timestamp;
1762 av_dlog(s, "using cached pos_min=0x%"PRIx64" dts_min=%s\n",
1763 pos_min, av_ts2str(ts_min));
1765 av_assert1(index==0);
1768 index= av_index_search_timestamp(st, target_ts, flags & ~AVSEEK_FLAG_BACKWARD);
1769 av_assert0(index < st->nb_index_entries);
1771 e= &st->index_entries[index];
1772 av_assert1(e->timestamp >= target_ts);
1774 ts_max= e->timestamp;
1775 pos_limit= pos_max - e->min_distance;
1776 av_dlog(s, "using cached pos_max=0x%"PRIx64" pos_limit=0x%"PRIx64" dts_max=%s\n",
1777 pos_max, pos_limit, av_ts2str(ts_max));
1781 pos= ff_gen_search(s, stream_index, target_ts, pos_min, pos_max, pos_limit, ts_min, ts_max, flags, &ts, avif->read_timestamp);
1786 if ((ret = avio_seek(s->pb, pos, SEEK_SET)) < 0)
1789 ff_read_frame_flush(s);
1790 ff_update_cur_dts(s, st, ts);
1795 int ff_find_last_ts(AVFormatContext *s, int stream_index, int64_t *ts, int64_t *pos,
1796 int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t ))
1799 int64_t limit, ts_max;
1800 int64_t filesize = avio_size(s->pb);
1801 int64_t pos_max = filesize - 1;
1804 pos_max = FFMAX(0, (pos_max) - step);
1805 ts_max = ff_read_timestamp(s, stream_index, &pos_max, limit, read_timestamp);
1807 }while(ts_max == AV_NOPTS_VALUE && 2*limit > step);
1808 if (ts_max == AV_NOPTS_VALUE)
1812 int64_t tmp_pos = pos_max + 1;
1813 int64_t tmp_ts = ff_read_timestamp(s, stream_index, &tmp_pos, INT64_MAX, read_timestamp);
1814 if(tmp_ts == AV_NOPTS_VALUE)
1816 av_assert0(tmp_pos > pos_max);
1819 if(tmp_pos >= filesize)
1831 int64_t ff_gen_search(AVFormatContext *s, int stream_index, int64_t target_ts,
1832 int64_t pos_min, int64_t pos_max, int64_t pos_limit,
1833 int64_t ts_min, int64_t ts_max, int flags, int64_t *ts_ret,
1834 int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t ))
1841 av_dlog(s, "gen_seek: %d %s\n", stream_index, av_ts2str(target_ts));
1843 if(ts_min == AV_NOPTS_VALUE){
1844 pos_min = s->data_offset;
1845 ts_min = ff_read_timestamp(s, stream_index, &pos_min, INT64_MAX, read_timestamp);
1846 if (ts_min == AV_NOPTS_VALUE)
1850 if(ts_min >= target_ts){
1855 if(ts_max == AV_NOPTS_VALUE){
1856 if ((ret = ff_find_last_ts(s, stream_index, &ts_max, &pos_max, read_timestamp)) < 0)
1861 if(ts_max <= target_ts){
1866 if(ts_min > ts_max){
1868 }else if(ts_min == ts_max){
1873 while (pos_min < pos_limit) {
1874 av_dlog(s, "pos_min=0x%"PRIx64" pos_max=0x%"PRIx64" dts_min=%s dts_max=%s\n",
1875 pos_min, pos_max, av_ts2str(ts_min), av_ts2str(ts_max));
1876 assert(pos_limit <= pos_max);
1879 int64_t approximate_keyframe_distance= pos_max - pos_limit;
1880 // interpolate position (better than dichotomy)
1881 pos = av_rescale(target_ts - ts_min, pos_max - pos_min, ts_max - ts_min)
1882 + pos_min - approximate_keyframe_distance;
1883 }else if(no_change==1){
1884 // bisection, if interpolation failed to change min or max pos last time
1885 pos = (pos_min + pos_limit)>>1;
1887 /* linear search if bisection failed, can only happen if there
1888 are very few or no keyframes between min/max */
1893 else if(pos > pos_limit)
1897 ts = ff_read_timestamp(s, stream_index, &pos, INT64_MAX, read_timestamp); //may pass pos_limit instead of -1
1902 av_dlog(s, "%"PRId64" %"PRId64" %"PRId64" / %s %s %s target:%s limit:%"PRId64" start:%"PRId64" noc:%d\n",
1903 pos_min, pos, pos_max,
1904 av_ts2str(ts_min), av_ts2str(ts), av_ts2str(ts_max), av_ts2str(target_ts),
1905 pos_limit, start_pos, no_change);
1906 if(ts == AV_NOPTS_VALUE){
1907 av_log(s, AV_LOG_ERROR, "read_timestamp() failed in the middle\n");
1910 assert(ts != AV_NOPTS_VALUE);
1911 if (target_ts <= ts) {
1912 pos_limit = start_pos - 1;
1916 if (target_ts >= ts) {
1922 pos = (flags & AVSEEK_FLAG_BACKWARD) ? pos_min : pos_max;
1923 ts = (flags & AVSEEK_FLAG_BACKWARD) ? ts_min : ts_max;
1926 ts_min = ff_read_timestamp(s, stream_index, &pos_min, INT64_MAX, read_timestamp);
1928 ts_max = ff_read_timestamp(s, stream_index, &pos_min, INT64_MAX, read_timestamp);
1929 av_dlog(s, "pos=0x%"PRIx64" %s<=%s<=%s\n",
1930 pos, av_ts2str(ts_min), av_ts2str(target_ts), av_ts2str(ts_max));
1936 static int seek_frame_byte(AVFormatContext *s, int stream_index, int64_t pos, int flags){
1937 int64_t pos_min, pos_max;
1939 pos_min = s->data_offset;
1940 pos_max = avio_size(s->pb) - 1;
1942 if (pos < pos_min) pos= pos_min;
1943 else if(pos > pos_max) pos= pos_max;
1945 avio_seek(s->pb, pos, SEEK_SET);
1947 s->io_repositioned = 1;
1952 static int seek_frame_generic(AVFormatContext *s,
1953 int stream_index, int64_t timestamp, int flags)
1960 st = s->streams[stream_index];
1962 index = av_index_search_timestamp(st, timestamp, flags);
1964 if(index < 0 && st->nb_index_entries && timestamp < st->index_entries[0].timestamp)
1967 if(index < 0 || index==st->nb_index_entries-1){
1971 if(st->nb_index_entries){
1972 av_assert0(st->index_entries);
1973 ie= &st->index_entries[st->nb_index_entries-1];
1974 if ((ret = avio_seek(s->pb, ie->pos, SEEK_SET)) < 0)
1976 ff_update_cur_dts(s, st, ie->timestamp);
1978 if ((ret = avio_seek(s->pb, s->data_offset, SEEK_SET)) < 0)
1984 read_status = av_read_frame(s, &pkt);
1985 } while (read_status == AVERROR(EAGAIN));
1986 if (read_status < 0)
1988 av_free_packet(&pkt);
1989 if(stream_index == pkt.stream_index && pkt.dts > timestamp){
1990 if(pkt.flags & AV_PKT_FLAG_KEY)
1992 if(nonkey++ > 1000 && st->codec->codec_id != AV_CODEC_ID_CDGRAPHICS){
1993 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);
1998 index = av_index_search_timestamp(st, timestamp, flags);
2003 ff_read_frame_flush(s);
2004 if (s->iformat->read_seek){
2005 if(s->iformat->read_seek(s, stream_index, timestamp, flags) >= 0)
2008 ie = &st->index_entries[index];
2009 if ((ret = avio_seek(s->pb, ie->pos, SEEK_SET)) < 0)
2011 ff_update_cur_dts(s, st, ie->timestamp);
2016 static int seek_frame_internal(AVFormatContext *s, int stream_index,
2017 int64_t timestamp, int flags)
2022 if (flags & AVSEEK_FLAG_BYTE) {
2023 if (s->iformat->flags & AVFMT_NO_BYTE_SEEK)
2025 ff_read_frame_flush(s);
2026 return seek_frame_byte(s, stream_index, timestamp, flags);
2029 if(stream_index < 0){
2030 stream_index= av_find_default_stream_index(s);
2031 if(stream_index < 0)
2034 st= s->streams[stream_index];
2035 /* timestamp for default must be expressed in AV_TIME_BASE units */
2036 timestamp = av_rescale(timestamp, st->time_base.den, AV_TIME_BASE * (int64_t)st->time_base.num);
2039 /* first, we try the format specific seek */
2040 if (s->iformat->read_seek) {
2041 ff_read_frame_flush(s);
2042 ret = s->iformat->read_seek(s, stream_index, timestamp, flags);
2049 if (s->iformat->read_timestamp && !(s->iformat->flags & AVFMT_NOBINSEARCH)) {
2050 ff_read_frame_flush(s);
2051 return ff_seek_frame_binary(s, stream_index, timestamp, flags);
2052 } else if (!(s->iformat->flags & AVFMT_NOGENSEARCH)) {
2053 ff_read_frame_flush(s);
2054 return seek_frame_generic(s, stream_index, timestamp, flags);
2060 int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
2064 if (s->iformat->read_seek2 && !s->iformat->read_seek) {
2065 int64_t min_ts = INT64_MIN, max_ts = INT64_MAX;
2066 if ((flags & AVSEEK_FLAG_BACKWARD))
2070 return avformat_seek_file(s, stream_index, min_ts, timestamp, max_ts,
2071 flags & ~AVSEEK_FLAG_BACKWARD);
2074 ret = seek_frame_internal(s, stream_index, timestamp, flags);
2077 ret = avformat_queue_attached_pictures(s);
2082 int avformat_seek_file(AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags)
2084 if(min_ts > ts || max_ts < ts)
2086 if (stream_index < -1 || stream_index >= (int)s->nb_streams)
2087 return AVERROR(EINVAL);
2090 flags |= AVSEEK_FLAG_ANY;
2091 flags &= ~AVSEEK_FLAG_BACKWARD;
2093 if (s->iformat->read_seek2) {
2095 ff_read_frame_flush(s);
2097 if (stream_index == -1 && s->nb_streams == 1) {
2098 AVRational time_base = s->streams[0]->time_base;
2099 ts = av_rescale_q(ts, AV_TIME_BASE_Q, time_base);
2100 min_ts = av_rescale_rnd(min_ts, time_base.den,
2101 time_base.num * (int64_t)AV_TIME_BASE,
2102 AV_ROUND_UP | AV_ROUND_PASS_MINMAX);
2103 max_ts = av_rescale_rnd(max_ts, time_base.den,
2104 time_base.num * (int64_t)AV_TIME_BASE,
2105 AV_ROUND_DOWN | AV_ROUND_PASS_MINMAX);
2108 ret = s->iformat->read_seek2(s, stream_index, min_ts, ts, max_ts, flags);
2111 ret = avformat_queue_attached_pictures(s);
2115 if(s->iformat->read_timestamp){
2116 //try to seek via read_timestamp()
2119 // Fall back on old API if new is not implemented but old is.
2120 // Note the old API has somewhat different semantics.
2121 if (s->iformat->read_seek || 1) {
2122 int dir = (ts - (uint64_t)min_ts > (uint64_t)max_ts - ts ? AVSEEK_FLAG_BACKWARD : 0);
2123 int ret = av_seek_frame(s, stream_index, ts, flags | dir);
2124 if (ret<0 && ts != min_ts && max_ts != ts) {
2125 ret = av_seek_frame(s, stream_index, dir ? max_ts : min_ts, flags | dir);
2127 ret = av_seek_frame(s, stream_index, ts, flags | (dir^AVSEEK_FLAG_BACKWARD));
2132 // try some generic seek like seek_frame_generic() but with new ts semantics
2133 return -1; //unreachable
2136 /*******************************************************/
2139 * Return TRUE if the stream has accurate duration in any stream.
2141 * @return TRUE if the stream has accurate duration for at least one component.
2143 static int has_duration(AVFormatContext *ic)
2148 for(i = 0;i < ic->nb_streams; i++) {
2149 st = ic->streams[i];
2150 if (st->duration != AV_NOPTS_VALUE)
2153 if (ic->duration != AV_NOPTS_VALUE)
2159 * Estimate the stream timings from the one of each components.
2161 * Also computes the global bitrate if possible.
2163 static void update_stream_timings(AVFormatContext *ic)
2165 int64_t start_time, start_time1, start_time_text, end_time, end_time1;
2166 int64_t duration, duration1, filesize;
2171 start_time = INT64_MAX;
2172 start_time_text = INT64_MAX;
2173 end_time = INT64_MIN;
2174 duration = INT64_MIN;
2175 for(i = 0;i < ic->nb_streams; i++) {
2176 st = ic->streams[i];
2177 if (st->start_time != AV_NOPTS_VALUE && st->time_base.den) {
2178 start_time1= av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q);
2179 if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE || st->codec->codec_type == AVMEDIA_TYPE_DATA) {
2180 if (start_time1 < start_time_text)
2181 start_time_text = start_time1;
2183 start_time = FFMIN(start_time, start_time1);
2184 end_time1 = AV_NOPTS_VALUE;
2185 if (st->duration != AV_NOPTS_VALUE) {
2186 end_time1 = start_time1
2187 + av_rescale_q(st->duration, st->time_base, AV_TIME_BASE_Q);
2188 end_time = FFMAX(end_time, end_time1);
2190 for(p = NULL; (p = av_find_program_from_stream(ic, p, i)); ){
2191 if(p->start_time == AV_NOPTS_VALUE || p->start_time > start_time1)
2192 p->start_time = start_time1;
2193 if(p->end_time < end_time1)
2194 p->end_time = end_time1;
2197 if (st->duration != AV_NOPTS_VALUE) {
2198 duration1 = av_rescale_q(st->duration, st->time_base, AV_TIME_BASE_Q);
2199 duration = FFMAX(duration, duration1);
2202 if (start_time == INT64_MAX || (start_time > start_time_text && start_time - start_time_text < AV_TIME_BASE))
2203 start_time = start_time_text;
2204 else if(start_time > start_time_text)
2205 av_log(ic, AV_LOG_VERBOSE, "Ignoring outlier non primary stream starttime %f\n", start_time_text / (float)AV_TIME_BASE);
2207 if (start_time != INT64_MAX) {
2208 ic->start_time = start_time;
2209 if (end_time != INT64_MIN) {
2210 if (ic->nb_programs) {
2211 for (i=0; i<ic->nb_programs; i++) {
2212 p = ic->programs[i];
2213 if(p->start_time != AV_NOPTS_VALUE && p->end_time > p->start_time)
2214 duration = FFMAX(duration, p->end_time - p->start_time);
2217 duration = FFMAX(duration, end_time - start_time);
2220 if (duration != INT64_MIN && duration > 0 && ic->duration == AV_NOPTS_VALUE) {
2221 ic->duration = duration;
2223 if (ic->pb && (filesize = avio_size(ic->pb)) > 0 && ic->duration != AV_NOPTS_VALUE) {
2224 /* compute the bitrate */
2225 double bitrate = (double)filesize * 8.0 * AV_TIME_BASE /
2226 (double)ic->duration;
2227 if (bitrate >= 0 && bitrate <= INT_MAX)
2228 ic->bit_rate = bitrate;
2232 static void fill_all_stream_timings(AVFormatContext *ic)
2237 update_stream_timings(ic);
2238 for(i = 0;i < ic->nb_streams; i++) {
2239 st = ic->streams[i];
2240 if (st->start_time == AV_NOPTS_VALUE) {
2241 if(ic->start_time != AV_NOPTS_VALUE)
2242 st->start_time = av_rescale_q(ic->start_time, AV_TIME_BASE_Q, st->time_base);
2243 if(ic->duration != AV_NOPTS_VALUE)
2244 st->duration = av_rescale_q(ic->duration, AV_TIME_BASE_Q, st->time_base);
2249 static void estimate_timings_from_bit_rate(AVFormatContext *ic)
2251 int64_t filesize, duration;
2252 int i, show_warning = 0;
2255 /* if bit_rate is already set, we believe it */
2256 if (ic->bit_rate <= 0) {
2258 for(i=0;i<ic->nb_streams;i++) {
2259 st = ic->streams[i];
2260 if (st->codec->bit_rate > 0) {
2261 if (INT_MAX - st->codec->bit_rate < bit_rate) {
2265 bit_rate += st->codec->bit_rate;
2268 ic->bit_rate = bit_rate;
2271 /* if duration is already set, we believe it */
2272 if (ic->duration == AV_NOPTS_VALUE &&
2273 ic->bit_rate != 0) {
2274 filesize = ic->pb ? avio_size(ic->pb) : 0;
2276 for(i = 0; i < ic->nb_streams; i++) {
2277 st = ic->streams[i];
2278 if ( st->time_base.num <= INT64_MAX / ic->bit_rate
2279 && st->duration == AV_NOPTS_VALUE) {
2280 duration= av_rescale(8*filesize, st->time_base.den, ic->bit_rate*(int64_t)st->time_base.num);
2281 st->duration = duration;
2288 av_log(ic, AV_LOG_WARNING, "Estimating duration from bitrate, this may be inaccurate\n");
2291 #define DURATION_MAX_READ_SIZE 250000LL
2292 #define DURATION_MAX_RETRY 4
2294 /* only usable for MPEG-PS streams */
2295 static void estimate_timings_from_pts(AVFormatContext *ic, int64_t old_offset)
2297 AVPacket pkt1, *pkt = &pkt1;
2299 int read_size, i, ret;
2301 int64_t filesize, offset, duration;
2304 /* flush packet queue */
2305 flush_packet_queue(ic);
2307 for (i=0; i<ic->nb_streams; i++) {
2308 st = ic->streams[i];
2309 if (st->start_time == AV_NOPTS_VALUE && st->first_dts == AV_NOPTS_VALUE)
2310 av_log(st->codec, AV_LOG_WARNING, "start time is not set in estimate_timings_from_pts\n");
2313 av_parser_close(st->parser);
2318 /* estimate the end time (duration) */
2319 /* XXX: may need to support wrapping */
2320 filesize = ic->pb ? avio_size(ic->pb) : 0;
2321 end_time = AV_NOPTS_VALUE;
2323 offset = filesize - (DURATION_MAX_READ_SIZE<<retry);
2327 avio_seek(ic->pb, offset, SEEK_SET);
2330 if (read_size >= DURATION_MAX_READ_SIZE<<(FFMAX(retry-1,0)))
2334 ret = ff_read_packet(ic, pkt);
2335 } while(ret == AVERROR(EAGAIN));
2338 read_size += pkt->size;
2339 st = ic->streams[pkt->stream_index];
2340 if (pkt->pts != AV_NOPTS_VALUE &&
2341 (st->start_time != AV_NOPTS_VALUE ||
2342 st->first_dts != AV_NOPTS_VALUE)) {
2343 duration = end_time = pkt->pts;
2344 if (st->start_time != AV_NOPTS_VALUE)
2345 duration -= st->start_time;
2347 duration -= st->first_dts;
2349 if (st->duration == AV_NOPTS_VALUE || st->info->last_duration<=0 ||
2350 (st->duration < duration && FFABS(duration - st->info->last_duration) < 60LL*st->time_base.den / st->time_base.num))
2351 st->duration = duration;
2352 st->info->last_duration = duration;
2355 av_free_packet(pkt);
2357 }while( end_time==AV_NOPTS_VALUE
2358 && filesize > (DURATION_MAX_READ_SIZE<<retry)
2359 && ++retry <= DURATION_MAX_RETRY);
2361 fill_all_stream_timings(ic);
2363 avio_seek(ic->pb, old_offset, SEEK_SET);
2364 for (i=0; i<ic->nb_streams; i++) {
2366 st->cur_dts= st->first_dts;
2367 st->last_IP_pts = AV_NOPTS_VALUE;
2368 st->reference_dts = AV_NOPTS_VALUE;
2372 static void estimate_timings(AVFormatContext *ic, int64_t old_offset)
2376 /* get the file size, if possible */
2377 if (ic->iformat->flags & AVFMT_NOFILE) {
2380 file_size = avio_size(ic->pb);
2381 file_size = FFMAX(0, file_size);
2384 if ((!strcmp(ic->iformat->name, "mpeg") ||
2385 !strcmp(ic->iformat->name, "mpegts")) &&
2386 file_size && ic->pb->seekable) {
2387 /* get accurate estimate from the PTSes */
2388 estimate_timings_from_pts(ic, old_offset);
2389 ic->duration_estimation_method = AVFMT_DURATION_FROM_PTS;
2390 } else if (has_duration(ic)) {
2391 /* at least one component has timings - we use them for all
2393 fill_all_stream_timings(ic);
2394 ic->duration_estimation_method = AVFMT_DURATION_FROM_STREAM;
2396 /* less precise: use bitrate info */
2397 estimate_timings_from_bit_rate(ic);
2398 ic->duration_estimation_method = AVFMT_DURATION_FROM_BITRATE;
2400 update_stream_timings(ic);
2404 AVStream av_unused *st;
2405 for(i = 0;i < ic->nb_streams; i++) {
2406 st = ic->streams[i];
2407 av_dlog(ic, "%d: start_time: %0.3f duration: %0.3f\n", i,
2408 (double) st->start_time / AV_TIME_BASE,
2409 (double) st->duration / AV_TIME_BASE);
2411 av_dlog(ic, "stream: start_time: %0.3f duration: %0.3f bitrate=%d kb/s\n",
2412 (double) ic->start_time / AV_TIME_BASE,
2413 (double) ic->duration / AV_TIME_BASE,
2414 ic->bit_rate / 1000);
2418 static int has_codec_parameters(AVStream *st, const char **errmsg_ptr)
2420 AVCodecContext *avctx = st->codec;
2422 #define FAIL(errmsg) do { \
2424 *errmsg_ptr = errmsg; \
2428 switch (avctx->codec_type) {
2429 case AVMEDIA_TYPE_AUDIO:
2430 if (!avctx->frame_size && determinable_frame_size(avctx))
2431 FAIL("unspecified frame size");
2432 if (st->info->found_decoder >= 0 && avctx->sample_fmt == AV_SAMPLE_FMT_NONE)
2433 FAIL("unspecified sample format");
2434 if (!avctx->sample_rate)
2435 FAIL("unspecified sample rate");
2436 if (!avctx->channels)
2437 FAIL("unspecified number of channels");
2438 if (st->info->found_decoder >= 0 && !st->nb_decoded_frames && avctx->codec_id == AV_CODEC_ID_DTS)
2439 FAIL("no decodable DTS frames");
2441 case AVMEDIA_TYPE_VIDEO:
2443 FAIL("unspecified size");
2444 if (st->info->found_decoder >= 0 && avctx->pix_fmt == AV_PIX_FMT_NONE)
2445 FAIL("unspecified pixel format");
2446 if (st->codec->codec_id == AV_CODEC_ID_RV30 || st->codec->codec_id == AV_CODEC_ID_RV40)
2447 if (!st->sample_aspect_ratio.num && !st->codec->sample_aspect_ratio.num && !st->codec_info_nb_frames)
2448 FAIL("no frame in rv30/40 and no sar");
2450 case AVMEDIA_TYPE_SUBTITLE:
2451 if (avctx->codec_id == AV_CODEC_ID_HDMV_PGS_SUBTITLE && !avctx->width)
2452 FAIL("unspecified size");
2454 case AVMEDIA_TYPE_DATA:
2455 if(avctx->codec_id == AV_CODEC_ID_NONE) return 1;
2458 if (avctx->codec_id == AV_CODEC_ID_NONE)
2459 FAIL("unknown codec");
2463 /* returns 1 or 0 if or if not decoded data was returned, or a negative error */
2464 static int try_decode_frame(AVFormatContext *s, AVStream *st, AVPacket *avpkt, AVDictionary **options)
2466 const AVCodec *codec;
2467 int got_picture = 1, ret = 0;
2468 AVFrame *frame = avcodec_alloc_frame();
2469 AVSubtitle subtitle;
2470 AVPacket pkt = *avpkt;
2473 return AVERROR(ENOMEM);
2475 if (!avcodec_is_open(st->codec) && !st->info->found_decoder) {
2476 AVDictionary *thread_opt = NULL;
2478 codec = find_decoder(s, st, st->codec->codec_id);
2481 st->info->found_decoder = -1;
2486 /* force thread count to 1 since the h264 decoder will not extract SPS
2487 * and PPS to extradata during multi-threaded decoding */
2488 av_dict_set(options ? options : &thread_opt, "threads", "1", 0);
2489 ret = avcodec_open2(st->codec, codec, options ? options : &thread_opt);
2491 av_dict_free(&thread_opt);
2493 st->info->found_decoder = -1;
2496 st->info->found_decoder = 1;
2497 } else if (!st->info->found_decoder)
2498 st->info->found_decoder = 1;
2500 if (st->info->found_decoder < 0) {
2505 while ((pkt.size > 0 || (!pkt.data && got_picture)) &&
2507 (!has_codec_parameters(st, NULL) ||
2508 !has_decode_delay_been_guessed(st) ||
2509 (!st->codec_info_nb_frames && st->codec->codec->capabilities & CODEC_CAP_CHANNEL_CONF))) {
2511 avcodec_get_frame_defaults(frame);
2512 switch(st->codec->codec_type) {
2513 case AVMEDIA_TYPE_VIDEO:
2514 ret = avcodec_decode_video2(st->codec, frame,
2515 &got_picture, &pkt);
2517 case AVMEDIA_TYPE_AUDIO:
2518 ret = avcodec_decode_audio4(st->codec, frame, &got_picture, &pkt);
2520 case AVMEDIA_TYPE_SUBTITLE:
2521 ret = avcodec_decode_subtitle2(st->codec, &subtitle,
2522 &got_picture, &pkt);
2530 st->nb_decoded_frames++;
2537 if(!pkt.data && !got_picture)
2541 avcodec_free_frame(&frame);
2545 unsigned int ff_codec_get_tag(const AVCodecTag *tags, enum AVCodecID id)
2547 while (tags->id != AV_CODEC_ID_NONE) {
2555 enum AVCodecID ff_codec_get_id(const AVCodecTag *tags, unsigned int tag)
2558 for(i=0; tags[i].id != AV_CODEC_ID_NONE;i++) {
2559 if(tag == tags[i].tag)
2562 for(i=0; tags[i].id != AV_CODEC_ID_NONE; i++) {
2563 if (avpriv_toupper4(tag) == avpriv_toupper4(tags[i].tag))
2566 return AV_CODEC_ID_NONE;
2569 enum AVCodecID ff_get_pcm_codec_id(int bps, int flt, int be, int sflags)
2573 case 32: return be ? AV_CODEC_ID_PCM_F32BE : AV_CODEC_ID_PCM_F32LE;
2574 case 64: return be ? AV_CODEC_ID_PCM_F64BE : AV_CODEC_ID_PCM_F64LE;
2575 default: return AV_CODEC_ID_NONE;
2580 if (sflags & (1 << (bps - 1))) {
2582 case 1: return AV_CODEC_ID_PCM_S8;
2583 case 2: return be ? AV_CODEC_ID_PCM_S16BE : AV_CODEC_ID_PCM_S16LE;
2584 case 3: return be ? AV_CODEC_ID_PCM_S24BE : AV_CODEC_ID_PCM_S24LE;
2585 case 4: return be ? AV_CODEC_ID_PCM_S32BE : AV_CODEC_ID_PCM_S32LE;
2586 default: return AV_CODEC_ID_NONE;
2590 case 1: return AV_CODEC_ID_PCM_U8;
2591 case 2: return be ? AV_CODEC_ID_PCM_U16BE : AV_CODEC_ID_PCM_U16LE;
2592 case 3: return be ? AV_CODEC_ID_PCM_U24BE : AV_CODEC_ID_PCM_U24LE;
2593 case 4: return be ? AV_CODEC_ID_PCM_U32BE : AV_CODEC_ID_PCM_U32LE;
2594 default: return AV_CODEC_ID_NONE;
2600 unsigned int av_codec_get_tag(const AVCodecTag * const *tags, enum AVCodecID id)
2603 if (!av_codec_get_tag2(tags, id, &tag))
2608 int av_codec_get_tag2(const AVCodecTag * const *tags, enum AVCodecID id,
2612 for(i=0; tags && tags[i]; i++){
2613 const AVCodecTag *codec_tags = tags[i];
2614 while (codec_tags->id != AV_CODEC_ID_NONE) {
2615 if (codec_tags->id == id) {
2616 *tag = codec_tags->tag;
2625 enum AVCodecID av_codec_get_id(const AVCodecTag * const *tags, unsigned int tag)
2628 for(i=0; tags && tags[i]; i++){
2629 enum AVCodecID id= ff_codec_get_id(tags[i], tag);
2630 if(id!=AV_CODEC_ID_NONE) return id;
2632 return AV_CODEC_ID_NONE;
2635 static void compute_chapters_end(AVFormatContext *s)
2638 int64_t max_time = s->duration + ((s->start_time == AV_NOPTS_VALUE) ? 0 : s->start_time);
2640 for (i = 0; i < s->nb_chapters; i++)
2641 if (s->chapters[i]->end == AV_NOPTS_VALUE) {
2642 AVChapter *ch = s->chapters[i];
2643 int64_t end = max_time ? av_rescale_q(max_time, AV_TIME_BASE_Q, ch->time_base)
2646 for (j = 0; j < s->nb_chapters; j++) {
2647 AVChapter *ch1 = s->chapters[j];
2648 int64_t next_start = av_rescale_q(ch1->start, ch1->time_base, ch->time_base);
2649 if (j != i && next_start > ch->start && next_start < end)
2652 ch->end = (end == INT64_MAX) ? ch->start : end;
2656 static int get_std_framerate(int i){
2657 if(i<60*12) return (i+1)*1001;
2658 else return ((const int[]){24,30,60,12,15,48})[i-60*12]*1000*12;
2662 * Is the time base unreliable.
2663 * This is a heuristic to balance between quick acceptance of the values in
2664 * the headers vs. some extra checks.
2665 * Old DivX and Xvid often have nonsense timebases like 1fps or 2fps.
2666 * MPEG-2 commonly misuses field repeat flags to store different framerates.
2667 * And there are "variable" fps files this needs to detect as well.
2669 static int tb_unreliable(AVCodecContext *c){
2670 if( c->time_base.den >= 101L*c->time_base.num
2671 || c->time_base.den < 5L*c->time_base.num
2672 /* || c->codec_tag == AV_RL32("DIVX")
2673 || c->codec_tag == AV_RL32("XVID")*/
2674 || c->codec_tag == AV_RL32("mp4v")
2675 || c->codec_id == AV_CODEC_ID_MPEG2VIDEO
2676 || c->codec_id == AV_CODEC_ID_H264
2682 #if FF_API_FORMAT_PARAMETERS
2683 int av_find_stream_info(AVFormatContext *ic)
2685 return avformat_find_stream_info(ic, NULL);
2689 int ff_alloc_extradata(AVCodecContext *avctx, int size)
2693 if (size < 0 || size >= INT32_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
2694 avctx->extradata_size = 0;
2695 return AVERROR(EINVAL);
2697 avctx->extradata = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
2698 if (avctx->extradata) {
2699 memset(avctx->extradata + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
2700 avctx->extradata_size = size;
2703 avctx->extradata_size = 0;
2704 ret = AVERROR(ENOMEM);
2709 int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
2711 int i, count, ret = 0, j;
2714 AVPacket pkt1, *pkt;
2715 int64_t old_offset = avio_tell(ic->pb);
2716 int orig_nb_streams = ic->nb_streams; // new streams might appear, no options for those
2717 int flush_codecs = ic->probesize > 0;
2720 av_log(ic, AV_LOG_DEBUG, "File position before avformat_find_stream_info() is %"PRId64"\n", avio_tell(ic->pb));
2722 for(i=0;i<ic->nb_streams;i++) {
2723 const AVCodec *codec;
2724 AVDictionary *thread_opt = NULL;
2725 st = ic->streams[i];
2727 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2728 st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2729 /* if(!st->time_base.num)
2731 if(!st->codec->time_base.num)
2732 st->codec->time_base= st->time_base;
2734 //only for the split stuff
2735 if (!st->parser && !(ic->flags & AVFMT_FLAG_NOPARSE)) {
2736 st->parser = av_parser_init(st->codec->codec_id);
2738 if(st->need_parsing == AVSTREAM_PARSE_HEADERS){
2739 st->parser->flags |= PARSER_FLAG_COMPLETE_FRAMES;
2740 } else if(st->need_parsing == AVSTREAM_PARSE_FULL_RAW) {
2741 st->parser->flags |= PARSER_FLAG_USE_CODEC_TS;
2743 } else if (st->need_parsing) {
2744 av_log(ic, AV_LOG_VERBOSE, "parser not found for codec "
2745 "%s, packets or times may be invalid.\n",
2746 avcodec_get_name(st->codec->codec_id));
2749 codec = find_decoder(ic, st, st->codec->codec_id);
2751 /* force thread count to 1 since the h264 decoder will not extract SPS
2752 * and PPS to extradata during multi-threaded decoding */
2753 av_dict_set(options ? &options[i] : &thread_opt, "threads", "1", 0);
2755 /* Ensure that subtitle_header is properly set. */
2756 if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE
2757 && codec && !st->codec->codec)
2758 avcodec_open2(st->codec, codec, options ? &options[i]
2761 //try to just open decoders, in case this is enough to get parameters
2762 if (!has_codec_parameters(st, NULL) && st->request_probe <= 0) {
2763 if (codec && !st->codec->codec)
2764 avcodec_open2(st->codec, codec, options ? &options[i]
2768 av_dict_free(&thread_opt);
2771 for (i=0; i<ic->nb_streams; i++) {
2772 #if FF_API_R_FRAME_RATE
2773 ic->streams[i]->info->last_dts = AV_NOPTS_VALUE;
2775 ic->streams[i]->info->fps_first_dts = AV_NOPTS_VALUE;
2776 ic->streams[i]->info->fps_last_dts = AV_NOPTS_VALUE;
2782 if (ff_check_interrupt(&ic->interrupt_callback)){
2784 av_log(ic, AV_LOG_DEBUG, "interrupted\n");
2788 /* check if one codec still needs to be handled */
2789 for(i=0;i<ic->nb_streams;i++) {
2790 int fps_analyze_framecount = 20;
2792 st = ic->streams[i];
2793 if (!has_codec_parameters(st, NULL))
2795 /* if the timebase is coarse (like the usual millisecond precision
2796 of mkv), we need to analyze more frames to reliably arrive at
2798 if (av_q2d(st->time_base) > 0.0005)
2799 fps_analyze_framecount *= 2;
2800 if (ic->fps_probe_size >= 0)
2801 fps_analyze_framecount = ic->fps_probe_size;
2802 if (st->disposition & AV_DISPOSITION_ATTACHED_PIC)
2803 fps_analyze_framecount = 0;
2804 /* variable fps and no guess at the real fps */
2805 if( tb_unreliable(st->codec) && !(st->r_frame_rate.num && st->avg_frame_rate.num)
2806 && st->info->duration_count < fps_analyze_framecount
2807 && st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2809 if(st->parser && st->parser->parser->split && !st->codec->extradata)
2811 if (st->first_dts == AV_NOPTS_VALUE &&
2812 (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2813 st->codec->codec_type == AVMEDIA_TYPE_AUDIO))
2816 if (i == ic->nb_streams) {
2817 /* NOTE: if the format has no header, then we need to read
2818 some packets to get most of the streams, so we cannot
2820 if (!(ic->ctx_flags & AVFMTCTX_NOHEADER)) {
2821 /* if we found the info for all the codecs, we can stop */
2823 av_log(ic, AV_LOG_DEBUG, "All info found\n");
2828 /* we did not get all the codec info, but we read too much data */
2829 if (read_size >= ic->probesize) {
2831 av_log(ic, AV_LOG_DEBUG, "Probe buffer size limit of %d bytes reached\n", ic->probesize);
2832 for (i = 0; i < ic->nb_streams; i++)
2833 if (!ic->streams[i]->r_frame_rate.num &&
2834 ic->streams[i]->info->duration_count <= 1 &&
2835 strcmp(ic->iformat->name, "image2"))
2836 av_log(ic, AV_LOG_WARNING,
2837 "Stream #%d: not enough frames to estimate rate; "
2838 "consider increasing probesize\n", i);
2842 /* NOTE: a new stream can be added there if no header in file
2843 (AVFMTCTX_NOHEADER) */
2844 ret = read_frame_internal(ic, &pkt1);
2845 if (ret == AVERROR(EAGAIN))
2853 if (ic->flags & AVFMT_FLAG_NOBUFFER)
2854 free_packet_buffer(&ic->packet_buffer, &ic->packet_buffer_end);
2856 pkt = add_to_pktbuf(&ic->packet_buffer, &pkt1,
2857 &ic->packet_buffer_end);
2859 ret = AVERROR(ENOMEM);
2860 goto find_stream_info_err;
2862 if ((ret = av_dup_packet(pkt)) < 0)
2863 goto find_stream_info_err;
2866 read_size += pkt->size;
2868 st = ic->streams[pkt->stream_index];
2869 if (pkt->dts != AV_NOPTS_VALUE && st->codec_info_nb_frames > 1) {
2870 /* check for non-increasing dts */
2871 if (st->info->fps_last_dts != AV_NOPTS_VALUE &&
2872 st->info->fps_last_dts >= pkt->dts) {
2873 av_log(ic, AV_LOG_DEBUG, "Non-increasing DTS in stream %d: "
2874 "packet %d with DTS %"PRId64", packet %d with DTS "
2875 "%"PRId64"\n", st->index, st->info->fps_last_dts_idx,
2876 st->info->fps_last_dts, st->codec_info_nb_frames, pkt->dts);
2877 st->info->fps_first_dts = st->info->fps_last_dts = AV_NOPTS_VALUE;
2879 /* check for a discontinuity in dts - if the difference in dts
2880 * is more than 1000 times the average packet duration in the sequence,
2881 * we treat it as a discontinuity */
2882 if (st->info->fps_last_dts != AV_NOPTS_VALUE &&
2883 st->info->fps_last_dts_idx > st->info->fps_first_dts_idx &&
2884 (pkt->dts - st->info->fps_last_dts) / 1000 >
2885 (st->info->fps_last_dts - st->info->fps_first_dts) / (st->info->fps_last_dts_idx - st->info->fps_first_dts_idx)) {
2886 av_log(ic, AV_LOG_WARNING, "DTS discontinuity in stream %d: "
2887 "packet %d with DTS %"PRId64", packet %d with DTS "
2888 "%"PRId64"\n", st->index, st->info->fps_last_dts_idx,
2889 st->info->fps_last_dts, st->codec_info_nb_frames, pkt->dts);
2890 st->info->fps_first_dts = st->info->fps_last_dts = AV_NOPTS_VALUE;
2893 /* update stored dts values */
2894 if (st->info->fps_first_dts == AV_NOPTS_VALUE) {
2895 st->info->fps_first_dts = pkt->dts;
2896 st->info->fps_first_dts_idx = st->codec_info_nb_frames;
2898 st->info->fps_last_dts = pkt->dts;
2899 st->info->fps_last_dts_idx = st->codec_info_nb_frames;
2901 if (st->codec_info_nb_frames>1) {
2903 if (st->time_base.den > 0)
2904 t = av_rescale_q(st->info->codec_info_duration, st->time_base, AV_TIME_BASE_Q);
2905 if (st->avg_frame_rate.num > 0)
2906 t = FFMAX(t, av_rescale_q(st->codec_info_nb_frames, av_inv_q(st->avg_frame_rate), AV_TIME_BASE_Q));
2909 && st->codec_info_nb_frames>30
2910 && st->info->fps_first_dts != AV_NOPTS_VALUE
2911 && st->info->fps_last_dts != AV_NOPTS_VALUE)
2912 t = FFMAX(t, av_rescale_q(st->info->fps_last_dts - st->info->fps_first_dts, st->time_base, AV_TIME_BASE_Q));
2914 if (t >= ic->max_analyze_duration) {
2915 av_log(ic, AV_LOG_VERBOSE, "max_analyze_duration %d reached at %"PRId64" microseconds\n", ic->max_analyze_duration, t);
2918 if (pkt->duration) {
2919 st->info->codec_info_duration += pkt->duration;
2920 st->info->codec_info_duration_fields += st->parser && st->need_parsing && st->codec->ticks_per_frame==2 ? st->parser->repeat_pict + 1 : 2;
2923 #if FF_API_R_FRAME_RATE
2925 int64_t last = st->info->last_dts;
2927 if( pkt->dts != AV_NOPTS_VALUE && last != AV_NOPTS_VALUE && pkt->dts > last
2928 && pkt->dts - (uint64_t)last < INT64_MAX){
2929 double dts= (is_relative(pkt->dts) ? pkt->dts - RELATIVE_TS_BASE : pkt->dts) * av_q2d(st->time_base);
2930 int64_t duration= pkt->dts - last;
2932 if (!st->info->duration_error)
2933 st->info->duration_error = av_mallocz(sizeof(st->info->duration_error[0])*2);
2934 if (!st->info->duration_error)
2935 return AVERROR(ENOMEM);
2937 // if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2938 // av_log(NULL, AV_LOG_ERROR, "%f\n", dts);
2939 for (i=0; i<MAX_STD_TIMEBASES; i++) {
2940 int framerate= get_std_framerate(i);
2941 double sdts= dts*framerate/(1001*12);
2943 int64_t ticks= llrint(sdts+j*0.5);
2944 double error= sdts - ticks + j*0.5;
2945 st->info->duration_error[j][0][i] += error;
2946 st->info->duration_error[j][1][i] += error*error;
2949 st->info->duration_count++;
2950 // ignore the first 4 values, they might have some random jitter
2951 if (st->info->duration_count > 3 && is_relative(pkt->dts) == is_relative(last))
2952 st->info->duration_gcd = av_gcd(st->info->duration_gcd, duration);
2954 if (pkt->dts != AV_NOPTS_VALUE)
2955 st->info->last_dts = pkt->dts;
2958 if(st->parser && st->parser->parser->split && !st->codec->extradata){
2959 int i= st->parser->parser->split(st->codec, pkt->data, pkt->size);
2960 if (i > 0 && i < FF_MAX_EXTRADATA_SIZE) {
2961 if (ff_alloc_extradata(st->codec, i))
2962 return AVERROR(ENOMEM);
2963 memcpy(st->codec->extradata, pkt->data, st->codec->extradata_size);
2967 /* if still no information, we try to open the codec and to
2968 decompress the frame. We try to avoid that in most cases as
2969 it takes longer and uses more memory. For MPEG-4, we need to
2970 decompress for QuickTime.
2972 If CODEC_CAP_CHANNEL_CONF is set this will force decoding of at
2973 least one frame of codec data, this makes sure the codec initializes
2974 the channel configuration and does not only trust the values from the container.
2976 try_decode_frame(ic, st, pkt, (options && i < orig_nb_streams ) ? &options[i] : NULL);
2978 st->codec_info_nb_frames++;
2983 AVPacket empty_pkt = { 0 };
2985 av_init_packet(&empty_pkt);
2987 for(i=0;i<ic->nb_streams;i++) {
2989 st = ic->streams[i];
2991 /* flush the decoders */
2992 if (st->info->found_decoder == 1) {
2994 err = try_decode_frame(ic, st, &empty_pkt,
2995 (options && i < orig_nb_streams) ?
2996 &options[i] : NULL);
2997 } while (err > 0 && !has_codec_parameters(st, NULL));
3000 av_log(ic, AV_LOG_INFO,
3001 "decoding for stream %d failed\n", st->index);
3007 // close codecs which were opened in try_decode_frame()
3008 for(i=0;i<ic->nb_streams;i++) {
3009 st = ic->streams[i];
3010 avcodec_close(st->codec);
3012 for(i=0;i<ic->nb_streams;i++) {
3013 st = ic->streams[i];
3014 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
3015 if(st->codec->codec_id == AV_CODEC_ID_RAWVIDEO && !st->codec->codec_tag && !st->codec->bits_per_coded_sample){
3016 uint32_t tag= avcodec_pix_fmt_to_codec_tag(st->codec->pix_fmt);
3017 if (avpriv_find_pix_fmt(ff_raw_pix_fmt_tags, tag) == st->codec->pix_fmt)
3018 st->codec->codec_tag= tag;
3021 /* estimate average framerate if not set by demuxer */
3022 if (st->info->codec_info_duration_fields && !st->avg_frame_rate.num && st->info->codec_info_duration) {
3024 double best_error = 0.01;
3026 if (st->info->codec_info_duration >= INT64_MAX / st->time_base.num / 2||
3027 st->info->codec_info_duration_fields >= INT64_MAX / st->time_base.den ||
3028 st->info->codec_info_duration < 0)
3030 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
3031 st->info->codec_info_duration_fields*(int64_t)st->time_base.den,
3032 st->info->codec_info_duration*2*(int64_t)st->time_base.num, 60000);
3034 /* round guessed framerate to a "standard" framerate if it's
3035 * within 1% of the original estimate*/
3036 for (j = 1; j < MAX_STD_TIMEBASES; j++) {
3037 AVRational std_fps = { get_std_framerate(j), 12*1001 };
3038 double error = fabs(av_q2d(st->avg_frame_rate) / av_q2d(std_fps) - 1);
3040 if (error < best_error) {
3042 best_fps = std_fps.num;
3046 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
3047 best_fps, 12*1001, INT_MAX);
3050 // the check for tb_unreliable() is not completely correct, since this is not about handling
3051 // a unreliable/inexact time base, but a time base that is finer than necessary, as e.g.
3052 // ipmovie.c produces.
3053 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)
3054 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);
3055 if (st->info->duration_count>1 && !st->r_frame_rate.num
3056 && tb_unreliable(st->codec)) {
3058 double best_error= 0.01;
3060 for (j=0; j<MAX_STD_TIMEBASES; j++) {
3063 if(st->info->codec_info_duration && st->info->codec_info_duration*av_q2d(st->time_base) < (1001*12.0)/get_std_framerate(j))
3065 if(!st->info->codec_info_duration && 1.0 < (1001*12.0)/get_std_framerate(j))
3068 int n= st->info->duration_count;
3069 double a= st->info->duration_error[k][0][j] / n;
3070 double error= st->info->duration_error[k][1][j]/n - a*a;
3072 if(error < best_error && best_error> 0.000000001){
3074 num = get_std_framerate(j);
3077 av_log(NULL, AV_LOG_DEBUG, "rfps: %f %f\n", get_std_framerate(j) / 12.0/1001, error);
3080 // do not increase frame rate by more than 1 % in order to match a standard rate.
3081 if (num && (!st->r_frame_rate.num || (double)num/(12*1001) < 1.01 * av_q2d(st->r_frame_rate)))
3082 av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den, num, 12*1001, INT_MAX);
3085 if (!st->r_frame_rate.num){
3086 if( st->codec->time_base.den * (int64_t)st->time_base.num
3087 <= st->codec->time_base.num * st->codec->ticks_per_frame * (int64_t)st->time_base.den){
3088 st->r_frame_rate.num = st->codec->time_base.den;
3089 st->r_frame_rate.den = st->codec->time_base.num * st->codec->ticks_per_frame;
3091 st->r_frame_rate.num = st->time_base.den;
3092 st->r_frame_rate.den = st->time_base.num;
3095 }else if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3096 if(!st->codec->bits_per_coded_sample)
3097 st->codec->bits_per_coded_sample= av_get_bits_per_sample(st->codec->codec_id);
3098 // set stream disposition based on audio service type
3099 switch (st->codec->audio_service_type) {
3100 case AV_AUDIO_SERVICE_TYPE_EFFECTS:
3101 st->disposition = AV_DISPOSITION_CLEAN_EFFECTS; break;
3102 case AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED:
3103 st->disposition = AV_DISPOSITION_VISUAL_IMPAIRED; break;
3104 case AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED:
3105 st->disposition = AV_DISPOSITION_HEARING_IMPAIRED; break;
3106 case AV_AUDIO_SERVICE_TYPE_COMMENTARY:
3107 st->disposition = AV_DISPOSITION_COMMENT; break;
3108 case AV_AUDIO_SERVICE_TYPE_KARAOKE:
3109 st->disposition = AV_DISPOSITION_KARAOKE; break;
3115 estimate_timings(ic, old_offset);
3117 if (ret >= 0 && ic->nb_streams)
3118 ret = -1; /* we could not have all the codec parameters before EOF */
3119 for(i=0;i<ic->nb_streams;i++) {
3121 st = ic->streams[i];
3122 if (!has_codec_parameters(st, &errmsg)) {
3124 avcodec_string(buf, sizeof(buf), st->codec, 0);
3125 av_log(ic, AV_LOG_WARNING,
3126 "Could not find codec parameters for stream %d (%s): %s\n"
3127 "Consider increasing the value for the 'analyzeduration' and 'probesize' options\n",
3134 compute_chapters_end(ic);
3136 find_stream_info_err:
3137 for (i=0; i < ic->nb_streams; i++) {
3138 st = ic->streams[i];
3139 if (ic->streams[i]->codec && ic->streams[i]->codec->codec_type != AVMEDIA_TYPE_AUDIO)
3140 ic->streams[i]->codec->thread_count = 0;
3142 av_freep(&st->info->duration_error);
3143 av_freep(&ic->streams[i]->info);
3146 av_log(ic, AV_LOG_DEBUG, "File position after avformat_find_stream_info() is %"PRId64"\n", avio_tell(ic->pb));
3150 AVProgram *av_find_program_from_stream(AVFormatContext *ic, AVProgram *last, int s)
3154 for (i = 0; i < ic->nb_programs; i++) {
3155 if (ic->programs[i] == last) {
3159 for (j = 0; j < ic->programs[i]->nb_stream_indexes; j++)
3160 if (ic->programs[i]->stream_index[j] == s)
3161 return ic->programs[i];
3167 int av_find_best_stream(AVFormatContext *ic,
3168 enum AVMediaType type,
3169 int wanted_stream_nb,
3171 AVCodec **decoder_ret,
3174 int i, nb_streams = ic->nb_streams;
3175 int ret = AVERROR_STREAM_NOT_FOUND, best_count = -1, best_bitrate = -1, best_multiframe = -1, count, bitrate, multiframe;
3176 unsigned *program = NULL;
3177 AVCodec *decoder = NULL, *best_decoder = NULL;
3179 if (related_stream >= 0 && wanted_stream_nb < 0) {
3180 AVProgram *p = av_find_program_from_stream(ic, NULL, related_stream);
3182 program = p->stream_index;
3183 nb_streams = p->nb_stream_indexes;
3186 for (i = 0; i < nb_streams; i++) {
3187 int real_stream_index = program ? program[i] : i;
3188 AVStream *st = ic->streams[real_stream_index];
3189 AVCodecContext *avctx = st->codec;
3190 if (avctx->codec_type != type)
3192 if (wanted_stream_nb >= 0 && real_stream_index != wanted_stream_nb)
3194 if (st->disposition & (AV_DISPOSITION_HEARING_IMPAIRED|AV_DISPOSITION_VISUAL_IMPAIRED))
3197 decoder = find_decoder(ic, st, st->codec->codec_id);
3200 ret = AVERROR_DECODER_NOT_FOUND;
3204 count = st->codec_info_nb_frames;
3205 bitrate = avctx->bit_rate;
3206 multiframe = FFMIN(5, count);
3207 if ((best_multiframe > multiframe) ||
3208 (best_multiframe == multiframe && best_bitrate > bitrate) ||
3209 (best_multiframe == multiframe && best_bitrate == bitrate && best_count >= count))
3212 best_bitrate = bitrate;
3213 best_multiframe = multiframe;
3214 ret = real_stream_index;
3215 best_decoder = decoder;
3216 if (program && i == nb_streams - 1 && ret < 0) {
3218 nb_streams = ic->nb_streams;
3219 i = 0; /* no related stream found, try again with everything */
3223 *decoder_ret = best_decoder;
3227 /*******************************************************/
3229 int av_read_play(AVFormatContext *s)
3231 if (s->iformat->read_play)
3232 return s->iformat->read_play(s);
3234 return avio_pause(s->pb, 0);
3235 return AVERROR(ENOSYS);
3238 int av_read_pause(AVFormatContext *s)
3240 if (s->iformat->read_pause)
3241 return s->iformat->read_pause(s);
3243 return avio_pause(s->pb, 1);
3244 return AVERROR(ENOSYS);
3247 void ff_free_stream(AVFormatContext *s, AVStream *st){
3248 av_assert0(s->nb_streams>0);
3249 av_assert0(s->streams[ s->nb_streams-1 ] == st);
3252 av_parser_close(st->parser);
3254 if (st->attached_pic.data)
3255 av_free_packet(&st->attached_pic);
3256 av_dict_free(&st->metadata);
3257 av_freep(&st->probe_data.buf);
3258 av_freep(&st->index_entries);
3259 av_freep(&st->codec->extradata);
3260 av_freep(&st->codec->subtitle_header);
3261 av_freep(&st->codec);
3262 av_freep(&st->priv_data);
3264 av_freep(&st->info->duration_error);
3265 av_freep(&st->info);
3266 av_freep(&s->streams[ --s->nb_streams ]);
3269 void avformat_free_context(AVFormatContext *s)
3277 if (s->iformat && s->iformat->priv_class && s->priv_data)
3278 av_opt_free(s->priv_data);
3280 for(i=s->nb_streams-1; i>=0; i--) {
3281 ff_free_stream(s, s->streams[i]);
3283 for(i=s->nb_programs-1; i>=0; i--) {
3284 av_dict_free(&s->programs[i]->metadata);
3285 av_freep(&s->programs[i]->stream_index);
3286 av_freep(&s->programs[i]);
3288 av_freep(&s->programs);
3289 av_freep(&s->priv_data);
3290 while(s->nb_chapters--) {
3291 av_dict_free(&s->chapters[s->nb_chapters]->metadata);
3292 av_freep(&s->chapters[s->nb_chapters]);
3294 av_freep(&s->chapters);
3295 av_dict_free(&s->metadata);
3296 av_freep(&s->streams);
3300 #if FF_API_CLOSE_INPUT_FILE
3301 void av_close_input_file(AVFormatContext *s)
3303 avformat_close_input(&s);
3307 void avformat_close_input(AVFormatContext **ps)
3318 if ((s->iformat && s->iformat->flags & AVFMT_NOFILE) ||
3319 (s->flags & AVFMT_FLAG_CUSTOM_IO))
3322 flush_packet_queue(s);
3325 if (s->iformat->read_close)
3326 s->iformat->read_close(s);
3329 avformat_free_context(s);
3336 #if FF_API_NEW_STREAM
3337 AVStream *av_new_stream(AVFormatContext *s, int id)
3339 AVStream *st = avformat_new_stream(s, NULL);
3346 AVStream *avformat_new_stream(AVFormatContext *s, const AVCodec *c)
3352 if (s->nb_streams >= INT_MAX/sizeof(*streams))
3354 streams = av_realloc_array(s->streams, s->nb_streams + 1, sizeof(*streams));
3357 s->streams = streams;
3359 st = av_mallocz(sizeof(AVStream));
3362 if (!(st->info = av_mallocz(sizeof(*st->info)))) {
3366 st->info->last_dts = AV_NOPTS_VALUE;
3368 st->codec = avcodec_alloc_context3(c);
3370 /* no default bitrate if decoding */
3371 st->codec->bit_rate = 0;
3373 st->index = s->nb_streams;
3374 st->start_time = AV_NOPTS_VALUE;
3375 st->duration = AV_NOPTS_VALUE;
3376 /* we set the current DTS to 0 so that formats without any timestamps
3377 but durations get some timestamps, formats with some unknown
3378 timestamps have their first few packets buffered and the
3379 timestamps corrected before they are returned to the user */
3380 st->cur_dts = s->iformat ? RELATIVE_TS_BASE : 0;
3381 st->first_dts = AV_NOPTS_VALUE;
3382 st->probe_packets = MAX_PROBE_PACKETS;
3383 st->pts_wrap_reference = AV_NOPTS_VALUE;
3384 st->pts_wrap_behavior = AV_PTS_WRAP_IGNORE;
3386 /* default pts setting is MPEG-like */
3387 avpriv_set_pts_info(st, 33, 1, 90000);
3388 st->last_IP_pts = AV_NOPTS_VALUE;
3389 for(i=0; i<MAX_REORDER_DELAY+1; i++)
3390 st->pts_buffer[i]= AV_NOPTS_VALUE;
3391 st->reference_dts = AV_NOPTS_VALUE;
3393 st->sample_aspect_ratio = (AVRational){0,1};
3395 #if FF_API_R_FRAME_RATE
3396 st->info->last_dts = AV_NOPTS_VALUE;
3398 st->info->fps_first_dts = AV_NOPTS_VALUE;
3399 st->info->fps_last_dts = AV_NOPTS_VALUE;
3401 s->streams[s->nb_streams++] = st;
3405 AVProgram *av_new_program(AVFormatContext *ac, int id)
3407 AVProgram *program=NULL;
3410 av_dlog(ac, "new_program: id=0x%04x\n", id);
3412 for(i=0; i<ac->nb_programs; i++)
3413 if(ac->programs[i]->id == id)
3414 program = ac->programs[i];
3417 program = av_mallocz(sizeof(AVProgram));
3420 dynarray_add(&ac->programs, &ac->nb_programs, program);
3421 program->discard = AVDISCARD_NONE;
3424 program->pts_wrap_reference = AV_NOPTS_VALUE;
3425 program->pts_wrap_behavior = AV_PTS_WRAP_IGNORE;
3427 program->start_time =
3428 program->end_time = AV_NOPTS_VALUE;
3433 AVChapter *avpriv_new_chapter(AVFormatContext *s, int id, AVRational time_base, int64_t start, int64_t end, const char *title)
3435 AVChapter *chapter = NULL;
3438 for(i=0; i<s->nb_chapters; i++)
3439 if(s->chapters[i]->id == id)
3440 chapter = s->chapters[i];
3443 chapter= av_mallocz(sizeof(AVChapter));
3446 dynarray_add(&s->chapters, &s->nb_chapters, chapter);
3448 av_dict_set(&chapter->metadata, "title", title, 0);
3450 chapter->time_base= time_base;
3451 chapter->start = start;
3457 void ff_program_add_stream_index(AVFormatContext *ac, int progid, unsigned int idx)
3460 AVProgram *program=NULL;
3463 if (idx >= ac->nb_streams) {
3464 av_log(ac, AV_LOG_ERROR, "stream index %d is not valid\n", idx);
3468 for(i=0; i<ac->nb_programs; i++){
3469 if(ac->programs[i]->id != progid)
3471 program = ac->programs[i];
3472 for(j=0; j<program->nb_stream_indexes; j++)
3473 if(program->stream_index[j] == idx)
3476 tmp = av_realloc_array(program->stream_index, program->nb_stream_indexes+1, sizeof(unsigned int));
3479 program->stream_index = tmp;
3480 program->stream_index[program->nb_stream_indexes++] = idx;
3485 static void print_fps(double d, const char *postfix){
3486 uint64_t v= lrintf(d*100);
3487 if (v% 100 ) av_log(NULL, AV_LOG_INFO, ", %3.2f %s", d, postfix);
3488 else if(v%(100*1000)) av_log(NULL, AV_LOG_INFO, ", %1.0f %s", d, postfix);
3489 else av_log(NULL, AV_LOG_INFO, ", %1.0fk %s", d/1000, postfix);
3492 static void dump_metadata(void *ctx, AVDictionary *m, const char *indent)
3494 if(m && !(av_dict_count(m) == 1 && av_dict_get(m, "language", NULL, 0))){
3495 AVDictionaryEntry *tag=NULL;
3497 av_log(ctx, AV_LOG_INFO, "%sMetadata:\n", indent);
3498 while((tag=av_dict_get(m, "", tag, AV_DICT_IGNORE_SUFFIX))) {
3499 if(strcmp("language", tag->key)){
3500 const char *p = tag->value;
3501 av_log(ctx, AV_LOG_INFO, "%s %-16s: ", indent, tag->key);
3504 size_t len = strcspn(p, "\x8\xa\xb\xc\xd");
3505 av_strlcpy(tmp, p, FFMIN(sizeof(tmp), len+1));
3506 av_log(ctx, AV_LOG_INFO, "%s", tmp);
3508 if (*p == 0xd) av_log(ctx, AV_LOG_INFO, " ");
3509 if (*p == 0xa) av_log(ctx, AV_LOG_INFO, "\n%s %-16s: ", indent, "");
3512 av_log(ctx, AV_LOG_INFO, "\n");
3518 /* "user interface" functions */
3519 static void dump_stream_format(AVFormatContext *ic, int i, int index, int is_output)
3522 int flags = (is_output ? ic->oformat->flags : ic->iformat->flags);
3523 AVStream *st = ic->streams[i];
3524 int g = av_gcd(st->time_base.num, st->time_base.den);
3525 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL, 0);
3526 avcodec_string(buf, sizeof(buf), st->codec, is_output);
3527 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d", index, i);
3528 /* the pid is an important information, so we display it */
3529 /* XXX: add a generic system */
3530 if (flags & AVFMT_SHOW_IDS)
3531 av_log(NULL, AV_LOG_INFO, "[0x%x]", st->id);
3533 av_log(NULL, AV_LOG_INFO, "(%s)", lang->value);
3534 av_log(NULL, AV_LOG_DEBUG, ", %d, %d/%d", st->codec_info_nb_frames, st->time_base.num/g, st->time_base.den/g);
3535 av_log(NULL, AV_LOG_INFO, ": %s", buf);
3536 if (st->sample_aspect_ratio.num && // default
3537 av_cmp_q(st->sample_aspect_ratio, st->codec->sample_aspect_ratio)) {
3538 AVRational display_aspect_ratio;
3539 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
3540 st->codec->width*st->sample_aspect_ratio.num,
3541 st->codec->height*st->sample_aspect_ratio.den,
3543 av_log(NULL, AV_LOG_INFO, ", SAR %d:%d DAR %d:%d",
3544 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
3545 display_aspect_ratio.num, display_aspect_ratio.den);
3547 if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO){
3548 if(st->avg_frame_rate.den && st->avg_frame_rate.num)
3549 print_fps(av_q2d(st->avg_frame_rate), "fps");
3550 #if FF_API_R_FRAME_RATE
3551 if(st->r_frame_rate.den && st->r_frame_rate.num)
3552 print_fps(av_q2d(st->r_frame_rate), "tbr");
3554 if(st->time_base.den && st->time_base.num)
3555 print_fps(1/av_q2d(st->time_base), "tbn");
3556 if(st->codec->time_base.den && st->codec->time_base.num)
3557 print_fps(1/av_q2d(st->codec->time_base), "tbc");
3559 if (st->disposition & AV_DISPOSITION_DEFAULT)
3560 av_log(NULL, AV_LOG_INFO, " (default)");
3561 if (st->disposition & AV_DISPOSITION_DUB)
3562 av_log(NULL, AV_LOG_INFO, " (dub)");
3563 if (st->disposition & AV_DISPOSITION_ORIGINAL)
3564 av_log(NULL, AV_LOG_INFO, " (original)");
3565 if (st->disposition & AV_DISPOSITION_COMMENT)
3566 av_log(NULL, AV_LOG_INFO, " (comment)");
3567 if (st->disposition & AV_DISPOSITION_LYRICS)
3568 av_log(NULL, AV_LOG_INFO, " (lyrics)");
3569 if (st->disposition & AV_DISPOSITION_KARAOKE)
3570 av_log(NULL, AV_LOG_INFO, " (karaoke)");
3571 if (st->disposition & AV_DISPOSITION_FORCED)
3572 av_log(NULL, AV_LOG_INFO, " (forced)");
3573 if (st->disposition & AV_DISPOSITION_HEARING_IMPAIRED)
3574 av_log(NULL, AV_LOG_INFO, " (hearing impaired)");
3575 if (st->disposition & AV_DISPOSITION_VISUAL_IMPAIRED)
3576 av_log(NULL, AV_LOG_INFO, " (visual impaired)");
3577 if (st->disposition & AV_DISPOSITION_CLEAN_EFFECTS)
3578 av_log(NULL, AV_LOG_INFO, " (clean effects)");
3579 av_log(NULL, AV_LOG_INFO, "\n");
3580 dump_metadata(NULL, st->metadata, " ");
3583 void av_dump_format(AVFormatContext *ic,
3589 uint8_t *printed = ic->nb_streams ? av_mallocz(ic->nb_streams) : NULL;
3590 if (ic->nb_streams && !printed)
3593 av_log(NULL, AV_LOG_INFO, "%s #%d, %s, %s '%s':\n",
3594 is_output ? "Output" : "Input",
3596 is_output ? ic->oformat->name : ic->iformat->name,
3597 is_output ? "to" : "from", url);
3598 dump_metadata(NULL, ic->metadata, " ");
3600 av_log(NULL, AV_LOG_INFO, " Duration: ");
3601 if (ic->duration != AV_NOPTS_VALUE) {
3602 int hours, mins, secs, us;
3603 int64_t duration = ic->duration + 5000;
3604 secs = duration / AV_TIME_BASE;
3605 us = duration % AV_TIME_BASE;
3610 av_log(NULL, AV_LOG_INFO, "%02d:%02d:%02d.%02d", hours, mins, secs,
3611 (100 * us) / AV_TIME_BASE);
3613 av_log(NULL, AV_LOG_INFO, "N/A");
3615 if (ic->start_time != AV_NOPTS_VALUE) {
3617 av_log(NULL, AV_LOG_INFO, ", start: ");
3618 secs = ic->start_time / AV_TIME_BASE;
3619 us = abs(ic->start_time % AV_TIME_BASE);
3620 av_log(NULL, AV_LOG_INFO, "%d.%06d",
3621 secs, (int)av_rescale(us, 1000000, AV_TIME_BASE));
3623 av_log(NULL, AV_LOG_INFO, ", bitrate: ");
3625 av_log(NULL, AV_LOG_INFO,"%d kb/s", ic->bit_rate / 1000);
3627 av_log(NULL, AV_LOG_INFO, "N/A");
3629 av_log(NULL, AV_LOG_INFO, "\n");
3631 for (i = 0; i < ic->nb_chapters; i++) {
3632 AVChapter *ch = ic->chapters[i];
3633 av_log(NULL, AV_LOG_INFO, " Chapter #%d.%d: ", index, i);
3634 av_log(NULL, AV_LOG_INFO, "start %f, ", ch->start * av_q2d(ch->time_base));
3635 av_log(NULL, AV_LOG_INFO, "end %f\n", ch->end * av_q2d(ch->time_base));
3637 dump_metadata(NULL, ch->metadata, " ");
3639 if(ic->nb_programs) {
3640 int j, k, total = 0;
3641 for(j=0; j<ic->nb_programs; j++) {
3642 AVDictionaryEntry *name = av_dict_get(ic->programs[j]->metadata,
3644 av_log(NULL, AV_LOG_INFO, " Program %d %s\n", ic->programs[j]->id,
3645 name ? name->value : "");
3646 dump_metadata(NULL, ic->programs[j]->metadata, " ");
3647 for(k=0; k<ic->programs[j]->nb_stream_indexes; k++) {
3648 dump_stream_format(ic, ic->programs[j]->stream_index[k], index, is_output);
3649 printed[ic->programs[j]->stream_index[k]] = 1;
3651 total += ic->programs[j]->nb_stream_indexes;
3653 if (total < ic->nb_streams)
3654 av_log(NULL, AV_LOG_INFO, " No Program\n");
3656 for(i=0;i<ic->nb_streams;i++)
3658 dump_stream_format(ic, i, index, is_output);
3663 uint64_t ff_ntp_time(void)
3665 return (av_gettime() / 1000) * 1000 + NTP_OFFSET_US;
3668 int av_get_frame_filename(char *buf, int buf_size,
3669 const char *path, int number)
3672 char *q, buf1[20], c;
3673 int nd, len, percentd_found;
3685 while (av_isdigit(*p)) {
3686 nd = nd * 10 + *p++ - '0';
3689 } while (av_isdigit(c));
3698 snprintf(buf1, sizeof(buf1), "%0*d", nd, number);
3700 if ((q - buf + len) > buf_size - 1)
3702 memcpy(q, buf1, len);
3710 if ((q - buf) < buf_size - 1)
3714 if (!percentd_found)
3723 static void hex_dump_internal(void *avcl, FILE *f, int level,
3724 const uint8_t *buf, int size)
3727 #define PRINT(...) do { if (!f) av_log(avcl, level, __VA_ARGS__); else fprintf(f, __VA_ARGS__); } while(0)
3729 for(i=0;i<size;i+=16) {
3736 PRINT(" %02x", buf[i+j]);
3741 for(j=0;j<len;j++) {
3743 if (c < ' ' || c > '~')
3752 void av_hex_dump(FILE *f, const uint8_t *buf, int size)
3754 hex_dump_internal(NULL, f, 0, buf, size);
3757 void av_hex_dump_log(void *avcl, int level, const uint8_t *buf, int size)
3759 hex_dump_internal(avcl, NULL, level, buf, size);
3762 static void pkt_dump_internal(void *avcl, FILE *f, int level, AVPacket *pkt, int dump_payload, AVRational time_base)
3764 #define PRINT(...) do { if (!f) av_log(avcl, level, __VA_ARGS__); else fprintf(f, __VA_ARGS__); } while(0)
3765 PRINT("stream #%d:\n", pkt->stream_index);
3766 PRINT(" keyframe=%d\n", ((pkt->flags & AV_PKT_FLAG_KEY) != 0));
3767 PRINT(" duration=%0.3f\n", pkt->duration * av_q2d(time_base));
3768 /* DTS is _always_ valid after av_read_frame() */
3770 if (pkt->dts == AV_NOPTS_VALUE)
3773 PRINT("%0.3f", pkt->dts * av_q2d(time_base));
3774 /* PTS may not be known if B-frames are present. */
3776 if (pkt->pts == AV_NOPTS_VALUE)
3779 PRINT("%0.3f", pkt->pts * av_q2d(time_base));
3781 PRINT(" size=%d\n", pkt->size);
3784 av_hex_dump(f, pkt->data, pkt->size);
3787 void av_pkt_dump2(FILE *f, AVPacket *pkt, int dump_payload, AVStream *st)
3789 pkt_dump_internal(NULL, f, 0, pkt, dump_payload, st->time_base);
3792 void av_pkt_dump_log2(void *avcl, int level, AVPacket *pkt, int dump_payload,
3795 pkt_dump_internal(avcl, NULL, level, pkt, dump_payload, st->time_base);
3798 void av_url_split(char *proto, int proto_size,
3799 char *authorization, int authorization_size,
3800 char *hostname, int hostname_size,
3802 char *path, int path_size,
3805 const char *p, *ls, *ls2, *at, *at2, *col, *brk;
3807 if (port_ptr) *port_ptr = -1;
3808 if (proto_size > 0) proto[0] = 0;
3809 if (authorization_size > 0) authorization[0] = 0;
3810 if (hostname_size > 0) hostname[0] = 0;
3811 if (path_size > 0) path[0] = 0;
3813 /* parse protocol */
3814 if ((p = strchr(url, ':'))) {
3815 av_strlcpy(proto, url, FFMIN(proto_size, p + 1 - url));
3820 /* no protocol means plain filename */
3821 av_strlcpy(path, url, path_size);
3825 /* separate path from hostname */
3826 ls = strchr(p, '/');
3827 ls2 = strchr(p, '?');
3831 ls = FFMIN(ls, ls2);
3833 av_strlcpy(path, ls, path_size);
3835 ls = &p[strlen(p)]; // XXX
3837 /* the rest is hostname, use that to parse auth/port */
3839 /* authorization (user[:pass]@hostname) */
3841 while ((at = strchr(p, '@')) && at < ls) {
3842 av_strlcpy(authorization, at2,
3843 FFMIN(authorization_size, at + 1 - at2));
3844 p = at + 1; /* skip '@' */
3847 if (*p == '[' && (brk = strchr(p, ']')) && brk < ls) {
3849 av_strlcpy(hostname, p + 1,
3850 FFMIN(hostname_size, brk - p));
3851 if (brk[1] == ':' && port_ptr)
3852 *port_ptr = atoi(brk + 2);
3853 } else if ((col = strchr(p, ':')) && col < ls) {
3854 av_strlcpy(hostname, p,
3855 FFMIN(col + 1 - p, hostname_size));
3856 if (port_ptr) *port_ptr = atoi(col + 1);
3858 av_strlcpy(hostname, p,
3859 FFMIN(ls + 1 - p, hostname_size));
3863 char *ff_data_to_hex(char *buff, const uint8_t *src, int s, int lowercase)
3866 static const char hex_table_uc[16] = { '0', '1', '2', '3',
3869 'C', 'D', 'E', 'F' };
3870 static const char hex_table_lc[16] = { '0', '1', '2', '3',
3873 'c', 'd', 'e', 'f' };
3874 const char *hex_table = lowercase ? hex_table_lc : hex_table_uc;
3876 for(i = 0; i < s; i++) {
3877 buff[i * 2] = hex_table[src[i] >> 4];
3878 buff[i * 2 + 1] = hex_table[src[i] & 0xF];
3884 int ff_hex_to_data(uint8_t *data, const char *p)
3891 p += strspn(p, SPACE_CHARS);
3894 c = av_toupper((unsigned char) *p++);
3895 if (c >= '0' && c <= '9')
3897 else if (c >= 'A' && c <= 'F')
3912 #if FF_API_SET_PTS_INFO
3913 void av_set_pts_info(AVStream *s, int pts_wrap_bits,
3914 unsigned int pts_num, unsigned int pts_den)
3916 avpriv_set_pts_info(s, pts_wrap_bits, pts_num, pts_den);
3920 void avpriv_set_pts_info(AVStream *s, int pts_wrap_bits,
3921 unsigned int pts_num, unsigned int pts_den)
3924 if(av_reduce(&new_tb.num, &new_tb.den, pts_num, pts_den, INT_MAX)){
3925 if(new_tb.num != pts_num)
3926 av_log(NULL, AV_LOG_DEBUG, "st:%d removing common factor %d from timebase\n", s->index, pts_num/new_tb.num);
3928 av_log(NULL, AV_LOG_WARNING, "st:%d has too large timebase, reducing\n", s->index);
3930 if(new_tb.num <= 0 || new_tb.den <= 0) {
3931 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);
3934 s->time_base = new_tb;
3935 av_codec_set_pkt_timebase(s->codec, new_tb);
3936 s->pts_wrap_bits = pts_wrap_bits;
3939 void ff_parse_key_value(const char *str, ff_parse_key_val_cb callback_get_buf,
3942 const char *ptr = str;
3944 /* Parse key=value pairs. */
3947 char *dest = NULL, *dest_end;
3948 int key_len, dest_len = 0;
3950 /* Skip whitespace and potential commas. */
3951 while (*ptr && (av_isspace(*ptr) || *ptr == ','))
3958 if (!(ptr = strchr(key, '=')))
3961 key_len = ptr - key;
3963 callback_get_buf(context, key, key_len, &dest, &dest_len);
3964 dest_end = dest + dest_len - 1;
3968 while (*ptr && *ptr != '\"') {
3972 if (dest && dest < dest_end)
3976 if (dest && dest < dest_end)
3984 for (; *ptr && !(av_isspace(*ptr) || *ptr == ','); ptr++)
3985 if (dest && dest < dest_end)
3993 int ff_find_stream_index(AVFormatContext *s, int id)
3996 for (i = 0; i < s->nb_streams; i++) {
3997 if (s->streams[i]->id == id)
4003 int64_t ff_iso8601_to_unix_time(const char *datestr)
4005 struct tm time1 = {0}, time2 = {0};
4007 ret1 = av_small_strptime(datestr, "%Y - %m - %d %H:%M:%S", &time1);
4008 ret2 = av_small_strptime(datestr, "%Y - %m - %dT%H:%M:%S", &time2);
4010 return av_timegm(&time2);
4012 return av_timegm(&time1);
4015 int avformat_query_codec(AVOutputFormat *ofmt, enum AVCodecID codec_id, int std_compliance)
4018 if (ofmt->query_codec)
4019 return ofmt->query_codec(codec_id, std_compliance);
4020 else if (ofmt->codec_tag)
4021 return !!av_codec_get_tag(ofmt->codec_tag, codec_id);
4022 else if (codec_id == ofmt->video_codec || codec_id == ofmt->audio_codec ||
4023 codec_id == ofmt->subtitle_codec)
4026 return AVERROR_PATCHWELCOME;
4029 int avformat_network_init(void)
4033 ff_network_inited_globally = 1;
4034 if ((ret = ff_network_init()) < 0)
4041 int avformat_network_deinit(void)
4050 int ff_add_param_change(AVPacket *pkt, int32_t channels,
4051 uint64_t channel_layout, int32_t sample_rate,
4052 int32_t width, int32_t height)
4058 return AVERROR(EINVAL);
4061 flags |= AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT;
4063 if (channel_layout) {
4065 flags |= AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT;
4069 flags |= AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE;
4071 if (width || height) {
4073 flags |= AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS;
4075 data = av_packet_new_side_data(pkt, AV_PKT_DATA_PARAM_CHANGE, size);
4077 return AVERROR(ENOMEM);
4078 bytestream_put_le32(&data, flags);
4080 bytestream_put_le32(&data, channels);
4082 bytestream_put_le64(&data, channel_layout);
4084 bytestream_put_le32(&data, sample_rate);
4085 if (width || height) {
4086 bytestream_put_le32(&data, width);
4087 bytestream_put_le32(&data, height);
4092 AVRational av_guess_sample_aspect_ratio(AVFormatContext *format, AVStream *stream, AVFrame *frame)
4094 AVRational undef = {0, 1};
4095 AVRational stream_sample_aspect_ratio = stream ? stream->sample_aspect_ratio : undef;
4096 AVRational codec_sample_aspect_ratio = stream && stream->codec ? stream->codec->sample_aspect_ratio : undef;
4097 AVRational frame_sample_aspect_ratio = frame ? frame->sample_aspect_ratio : codec_sample_aspect_ratio;
4099 av_reduce(&stream_sample_aspect_ratio.num, &stream_sample_aspect_ratio.den,
4100 stream_sample_aspect_ratio.num, stream_sample_aspect_ratio.den, INT_MAX);
4101 if (stream_sample_aspect_ratio.num <= 0 || stream_sample_aspect_ratio.den <= 0)
4102 stream_sample_aspect_ratio = undef;
4104 av_reduce(&frame_sample_aspect_ratio.num, &frame_sample_aspect_ratio.den,
4105 frame_sample_aspect_ratio.num, frame_sample_aspect_ratio.den, INT_MAX);
4106 if (frame_sample_aspect_ratio.num <= 0 || frame_sample_aspect_ratio.den <= 0)
4107 frame_sample_aspect_ratio = undef;
4109 if (stream_sample_aspect_ratio.num)
4110 return stream_sample_aspect_ratio;
4112 return frame_sample_aspect_ratio;
4115 AVRational av_guess_frame_rate(AVFormatContext *format, AVStream *st, AVFrame *frame)
4117 AVRational fr = st->r_frame_rate;
4119 if (st->codec->ticks_per_frame > 1) {
4120 AVRational codec_fr = av_inv_q(st->codec->time_base);
4121 AVRational avg_fr = st->avg_frame_rate;
4122 codec_fr.den *= st->codec->ticks_per_frame;
4123 if ( codec_fr.num > 0 && codec_fr.den > 0 && av_q2d(codec_fr) < av_q2d(fr)*0.7
4124 && fabs(1.0 - av_q2d(av_div_q(avg_fr, fr))) > 0.1)
4131 int avformat_match_stream_specifier(AVFormatContext *s, AVStream *st,
4134 if (*spec <= '9' && *spec >= '0') /* opt:index */
4135 return strtol(spec, NULL, 0) == st->index;
4136 else if (*spec == 'v' || *spec == 'a' || *spec == 's' || *spec == 'd' ||
4137 *spec == 't') { /* opt:[vasdt] */
4138 enum AVMediaType type;
4141 case 'v': type = AVMEDIA_TYPE_VIDEO; break;
4142 case 'a': type = AVMEDIA_TYPE_AUDIO; break;
4143 case 's': type = AVMEDIA_TYPE_SUBTITLE; break;
4144 case 'd': type = AVMEDIA_TYPE_DATA; break;
4145 case 't': type = AVMEDIA_TYPE_ATTACHMENT; break;
4146 default: av_assert0(0);
4148 if (type != st->codec->codec_type)
4150 if (*spec++ == ':') { /* possibly followed by :index */
4151 int i, index = strtol(spec, NULL, 0);
4152 for (i = 0; i < s->nb_streams; i++)
4153 if (s->streams[i]->codec->codec_type == type && index-- == 0)
4154 return i == st->index;
4158 } else if (*spec == 'p' && *(spec + 1) == ':') {
4162 prog_id = strtol(spec, &endptr, 0);
4163 for (i = 0; i < s->nb_programs; i++) {
4164 if (s->programs[i]->id != prog_id)
4167 if (*endptr++ == ':') {
4168 int stream_idx = strtol(endptr, NULL, 0);
4169 return stream_idx >= 0 &&
4170 stream_idx < s->programs[i]->nb_stream_indexes &&
4171 st->index == s->programs[i]->stream_index[stream_idx];
4174 for (j = 0; j < s->programs[i]->nb_stream_indexes; j++)
4175 if (st->index == s->programs[i]->stream_index[j])
4179 } else if (*spec == '#') {
4182 sid = strtol(spec + 1, &endptr, 0);
4184 return st->id == sid;
4185 } else if (!*spec) /* empty specifier, matches everything */
4188 av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
4189 return AVERROR(EINVAL);
4192 void ff_generate_avci_extradata(AVStream *st)
4194 static const uint8_t avci100_1080p_extradata[] = {
4196 0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
4197 0xb6, 0xd4, 0x20, 0x22, 0x33, 0x19, 0xc6, 0x63,
4198 0x23, 0x21, 0x01, 0x11, 0x98, 0xce, 0x33, 0x19,
4199 0x18, 0x21, 0x02, 0x56, 0xb9, 0x3d, 0x7d, 0x7e,
4200 0x4f, 0xe3, 0x3f, 0x11, 0xf1, 0x9e, 0x08, 0xb8,
4201 0x8c, 0x54, 0x43, 0xc0, 0x78, 0x02, 0x27, 0xe2,
4202 0x70, 0x1e, 0x30, 0x10, 0x10, 0x14, 0x00, 0x00,
4203 0x03, 0x00, 0x04, 0x00, 0x00, 0x03, 0x00, 0xca,
4204 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
4206 0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x33, 0x48,
4209 static const uint8_t avci100_1080i_extradata[] = {
4211 0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
4212 0xb6, 0xd4, 0x20, 0x22, 0x33, 0x19, 0xc6, 0x63,
4213 0x23, 0x21, 0x01, 0x11, 0x98, 0xce, 0x33, 0x19,
4214 0x18, 0x21, 0x03, 0x3a, 0x46, 0x65, 0x6a, 0x65,
4215 0x24, 0xad, 0xe9, 0x12, 0x32, 0x14, 0x1a, 0x26,
4216 0x34, 0xad, 0xa4, 0x41, 0x82, 0x23, 0x01, 0x50,
4217 0x2b, 0x1a, 0x24, 0x69, 0x48, 0x30, 0x40, 0x2e,
4218 0x11, 0x12, 0x08, 0xc6, 0x8c, 0x04, 0x41, 0x28,
4219 0x4c, 0x34, 0xf0, 0x1e, 0x01, 0x13, 0xf2, 0xe0,
4220 0x3c, 0x60, 0x20, 0x20, 0x28, 0x00, 0x00, 0x03,
4221 0x00, 0x08, 0x00, 0x00, 0x03, 0x01, 0x94, 0x00,
4223 0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x33, 0x48,
4226 static const uint8_t avci50_1080i_extradata[] = {
4228 0x00, 0x00, 0x00, 0x01, 0x67, 0x6e, 0x10, 0x28,
4229 0xa6, 0xd4, 0x20, 0x32, 0x33, 0x0c, 0x71, 0x18,
4230 0x88, 0x62, 0x10, 0x19, 0x19, 0x86, 0x38, 0x8c,
4231 0x44, 0x30, 0x21, 0x02, 0x56, 0x4e, 0x6e, 0x61,
4232 0x87, 0x3e, 0x73, 0x4d, 0x98, 0x0c, 0x03, 0x06,
4233 0x9c, 0x0b, 0x73, 0xe6, 0xc0, 0xb5, 0x18, 0x63,
4234 0x0d, 0x39, 0xe0, 0x5b, 0x02, 0xd4, 0xc6, 0x19,
4235 0x1a, 0x79, 0x8c, 0x32, 0x34, 0x24, 0xf0, 0x16,
4236 0x81, 0x13, 0xf7, 0xff, 0x80, 0x02, 0x00, 0x01,
4237 0xf1, 0x80, 0x80, 0x80, 0xa0, 0x00, 0x00, 0x03,
4238 0x00, 0x20, 0x00, 0x00, 0x06, 0x50, 0x80, 0x00,
4240 0x00, 0x00, 0x00, 0x01, 0x68, 0xee, 0x31, 0x12,
4243 static const uint8_t avci100_720p_extradata[] = {
4245 0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
4246 0xb6, 0xd4, 0x20, 0x2a, 0x33, 0x1d, 0xc7, 0x62,
4247 0xa1, 0x08, 0x40, 0x54, 0x66, 0x3b, 0x8e, 0xc5,
4248 0x42, 0x02, 0x10, 0x25, 0x64, 0x2c, 0x89, 0xe8,
4249 0x85, 0xe4, 0x21, 0x4b, 0x90, 0x83, 0x06, 0x95,
4250 0xd1, 0x06, 0x46, 0x97, 0x20, 0xc8, 0xd7, 0x43,
4251 0x08, 0x11, 0xc2, 0x1e, 0x4c, 0x91, 0x0f, 0x01,
4252 0x40, 0x16, 0xec, 0x07, 0x8c, 0x04, 0x04, 0x05,
4253 0x00, 0x00, 0x03, 0x00, 0x01, 0x00, 0x00, 0x03,
4254 0x00, 0x64, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00,
4256 0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x31, 0x12,
4260 const uint8_t *data = 0;
4261 if (st->codec->width == 1920) {
4262 if (st->codec->field_order == AV_FIELD_PROGRESSIVE) {
4263 data = avci100_1080p_extradata;
4264 size = sizeof(avci100_1080p_extradata);
4266 data = avci100_1080i_extradata;
4267 size = sizeof(avci100_1080i_extradata);
4269 } else if (st->codec->width == 1440) {
4270 data = avci50_1080i_extradata;
4271 size = sizeof(avci50_1080i_extradata);
4272 } else if (st->codec->width == 1280) {
4273 data = avci100_720p_extradata;
4274 size = sizeof(avci100_720p_extradata);
4278 av_freep(&st->codec->extradata);
4279 if (ff_alloc_extradata(st->codec, size))
4281 memcpy(st->codec->extradata, data, size);