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)
102 static AVCodec *find_decoder(AVStream *st, enum AVCodecID codec_id)
104 if (st->codec->codec)
105 return st->codec->codec;
107 return avcodec_find_decoder(codec_id);
110 int av_format_get_probe_score(const AVFormatContext *s)
112 return s->probe_score;
115 /* an arbitrarily chosen "sane" max packet size -- 50M */
116 #define SANE_CHUNK_SIZE (50000000)
118 int ffio_limit(AVIOContext *s, int size)
121 int64_t remaining= s->maxsize - avio_tell(s);
122 if(remaining < size){
123 int64_t newsize= avio_size(s);
124 if(!s->maxsize || s->maxsize<newsize)
125 s->maxsize= newsize - !newsize;
126 remaining= s->maxsize - avio_tell(s);
127 remaining= FFMAX(remaining, 0);
130 if(s->maxsize>=0 && remaining+1 < size){
131 av_log(NULL, remaining ? AV_LOG_ERROR : AV_LOG_DEBUG, "Truncating packet of size %d to %"PRId64"\n", size, remaining+1);
139 * Read the data in sane-sized chunks and append to pkt.
140 * Return the number of bytes read or an error.
142 static int append_packet_chunked(AVIOContext *s, AVPacket *pkt, int size)
144 int64_t orig_pos = pkt->pos; // av_grow_packet might reset pos
145 int orig_size = pkt->size;
149 int prev_size = pkt->size;
153 * When the caller requests a lot of data, limit it to the amount left
154 * in file or SANE_CHUNK_SIZE when it is not known
157 if (read_size > SANE_CHUNK_SIZE/10) {
158 read_size = ffio_limit(s, read_size);
159 // If filesize/maxsize is unknown, limit to SANE_CHUNK_SIZE
161 read_size = FFMIN(read_size, SANE_CHUNK_SIZE);
164 ret = av_grow_packet(pkt, read_size);
168 ret = avio_read(s, pkt->data + prev_size, read_size);
169 if (ret != read_size) {
170 av_shrink_packet(pkt, prev_size + FFMAX(ret, 0));
177 pkt->flags |= AV_PKT_FLAG_CORRUPT;
182 return pkt->size > orig_size ? pkt->size - orig_size : ret;
185 int av_get_packet(AVIOContext *s, AVPacket *pkt, int size)
190 pkt->pos = avio_tell(s);
192 return append_packet_chunked(s, pkt, size);
195 int av_append_packet(AVIOContext *s, AVPacket *pkt, int size)
198 return av_get_packet(s, pkt, size);
199 return append_packet_chunked(s, pkt, size);
203 int av_filename_number_test(const char *filename)
206 return filename && (av_get_frame_filename(buf, sizeof(buf), filename, 1)>=0);
209 AVInputFormat *av_probe_input_format3(AVProbeData *pd, int is_opened, int *score_ret)
211 AVProbeData lpd = *pd;
212 AVInputFormat *fmt1 = NULL, *fmt;
213 int score, nodat = 0, score_max=0;
214 const static uint8_t zerobuffer[AVPROBE_PADDING_SIZE];
217 lpd.buf = zerobuffer;
219 if (lpd.buf_size > 10 && ff_id3v2_match(lpd.buf, ID3v2_DEFAULT_MAGIC)) {
220 int id3len = ff_id3v2_tag_len(lpd.buf);
221 if (lpd.buf_size > id3len + 16) {
223 lpd.buf_size -= id3len;
229 while ((fmt1 = av_iformat_next(fmt1))) {
230 if (!is_opened == !(fmt1->flags & AVFMT_NOFILE))
233 if (fmt1->read_probe) {
234 score = fmt1->read_probe(&lpd);
235 if(fmt1->extensions && av_match_ext(lpd.filename, fmt1->extensions))
236 score = FFMAX(score, nodat ? AVPROBE_SCORE_EXTENSION / 2 - 1 : 1);
237 } else if (fmt1->extensions) {
238 if (av_match_ext(lpd.filename, fmt1->extensions)) {
239 score = AVPROBE_SCORE_EXTENSION;
242 if (score > score_max) {
245 }else if (score == score_max)
249 score_max = FFMIN(AVPROBE_SCORE_EXTENSION / 2 - 1, score_max);
250 *score_ret= score_max;
255 AVInputFormat *av_probe_input_format2(AVProbeData *pd, int is_opened, int *score_max)
258 AVInputFormat *fmt= av_probe_input_format3(pd, is_opened, &score_ret);
259 if(score_ret > *score_max){
260 *score_max= score_ret;
266 AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened){
268 return av_probe_input_format2(pd, is_opened, &score);
271 static int set_codec_from_probe_data(AVFormatContext *s, AVStream *st, AVProbeData *pd)
273 static const struct {
274 const char *name; enum AVCodecID id; enum AVMediaType type;
276 { "aac" , AV_CODEC_ID_AAC , AVMEDIA_TYPE_AUDIO },
277 { "ac3" , AV_CODEC_ID_AC3 , AVMEDIA_TYPE_AUDIO },
278 { "dts" , AV_CODEC_ID_DTS , AVMEDIA_TYPE_AUDIO },
279 { "eac3" , AV_CODEC_ID_EAC3 , AVMEDIA_TYPE_AUDIO },
280 { "h264" , AV_CODEC_ID_H264 , AVMEDIA_TYPE_VIDEO },
281 { "loas" , AV_CODEC_ID_AAC_LATM , AVMEDIA_TYPE_AUDIO },
282 { "m4v" , AV_CODEC_ID_MPEG4 , AVMEDIA_TYPE_VIDEO },
283 { "mp3" , AV_CODEC_ID_MP3 , AVMEDIA_TYPE_AUDIO },
284 { "mpegvideo", AV_CODEC_ID_MPEG2VIDEO, AVMEDIA_TYPE_VIDEO },
288 AVInputFormat *fmt = av_probe_input_format3(pd, 1, &score);
290 if (fmt && st->request_probe <= score) {
292 av_log(s, AV_LOG_DEBUG, "Probe with size=%d, packets=%d detected %s with score=%d\n",
293 pd->buf_size, MAX_PROBE_PACKETS - st->probe_packets, fmt->name, score);
294 for (i = 0; fmt_id_type[i].name; i++) {
295 if (!strcmp(fmt->name, fmt_id_type[i].name)) {
296 st->codec->codec_id = fmt_id_type[i].id;
297 st->codec->codec_type = fmt_id_type[i].type;
305 /************************************************************/
306 /* input media file */
308 int av_demuxer_open(AVFormatContext *ic){
311 if (ic->iformat->read_header) {
312 err = ic->iformat->read_header(ic);
317 if (ic->pb && !ic->data_offset)
318 ic->data_offset = avio_tell(ic->pb);
324 int av_probe_input_buffer2(AVIOContext *pb, AVInputFormat **fmt,
325 const char *filename, void *logctx,
326 unsigned int offset, unsigned int max_probe_size)
328 AVProbeData pd = { filename ? filename : "", NULL, -offset };
329 unsigned char *buf = NULL;
331 int ret = 0, probe_size, buf_offset = 0;
334 if (!max_probe_size) {
335 max_probe_size = PROBE_BUF_MAX;
336 } else if (max_probe_size > PROBE_BUF_MAX) {
337 max_probe_size = PROBE_BUF_MAX;
338 } else if (max_probe_size < PROBE_BUF_MIN) {
339 av_log(logctx, AV_LOG_ERROR,
340 "Specified probe size value %u cannot be < %u\n", max_probe_size, PROBE_BUF_MIN);
341 return AVERROR(EINVAL);
344 if (offset >= max_probe_size) {
345 return AVERROR(EINVAL);
348 if (!*fmt && pb->av_class && av_opt_get(pb, "mime_type", AV_OPT_SEARCH_CHILDREN, &mime_type) >= 0 && mime_type) {
349 if (!av_strcasecmp(mime_type, "audio/aacp")) {
350 *fmt = av_find_input_format("aac");
352 av_freep(&mime_type);
355 for(probe_size= PROBE_BUF_MIN; probe_size<=max_probe_size && !*fmt;
356 probe_size = FFMIN(probe_size<<1, FFMAX(max_probe_size, probe_size+1))) {
358 if (probe_size < offset) {
361 score = probe_size < max_probe_size ? AVPROBE_SCORE_RETRY : 0;
363 /* read probe data */
364 if ((ret = av_reallocp(&buf, probe_size + AVPROBE_PADDING_SIZE)) < 0)
366 if ((ret = avio_read(pb, buf + buf_offset, probe_size - buf_offset)) < 0) {
367 /* fail if error was not end of file, otherwise, lower score */
368 if (ret != AVERROR_EOF) {
373 ret = 0; /* error was end of file, nothing read */
375 pd.buf_size = buf_offset += ret;
376 pd.buf = &buf[offset];
378 memset(pd.buf + pd.buf_size, 0, AVPROBE_PADDING_SIZE);
380 /* guess file format */
381 *fmt = av_probe_input_format2(&pd, 1, &score);
383 if(score <= AVPROBE_SCORE_RETRY){ //this can only be true in the last iteration
384 av_log(logctx, AV_LOG_WARNING, "Format %s detected only with low score of %d, misdetection possible!\n", (*fmt)->name, score);
386 av_log(logctx, AV_LOG_DEBUG, "Format %s probed with size=%d and score=%d\n", (*fmt)->name, probe_size, score);
392 return AVERROR_INVALIDDATA;
395 /* rewind. reuse probe buffer to avoid seeking */
396 ret = ffio_rewind_with_probe_data(pb, &buf, pd.buf_size);
398 return ret < 0 ? ret : score;
401 int av_probe_input_buffer(AVIOContext *pb, AVInputFormat **fmt,
402 const char *filename, void *logctx,
403 unsigned int offset, unsigned int max_probe_size)
405 int ret = av_probe_input_buffer2(pb, fmt, filename, logctx, offset, max_probe_size);
406 return ret < 0 ? ret : 0;
410 /* open input file and probe the format if necessary */
411 static int init_input(AVFormatContext *s, const char *filename, AVDictionary **options)
414 AVProbeData pd = {filename, NULL, 0};
415 int score = AVPROBE_SCORE_RETRY;
418 s->flags |= AVFMT_FLAG_CUSTOM_IO;
420 return av_probe_input_buffer2(s->pb, &s->iformat, filename, s, 0, s->probesize);
421 else if (s->iformat->flags & AVFMT_NOFILE)
422 av_log(s, AV_LOG_WARNING, "Custom AVIOContext makes no sense and "
423 "will be ignored with AVFMT_NOFILE format.\n");
427 if ( (s->iformat && s->iformat->flags & AVFMT_NOFILE) ||
428 (!s->iformat && (s->iformat = av_probe_input_format2(&pd, 0, &score))))
431 if ((ret = avio_open2(&s->pb, filename, AVIO_FLAG_READ | s->avio_flags,
432 &s->interrupt_callback, options)) < 0)
436 return av_probe_input_buffer2(s->pb, &s->iformat, filename, s, 0, s->probesize);
439 static AVPacket *add_to_pktbuf(AVPacketList **packet_buffer, AVPacket *pkt,
440 AVPacketList **plast_pktl){
441 AVPacketList *pktl = av_mallocz(sizeof(AVPacketList));
446 (*plast_pktl)->next = pktl;
448 *packet_buffer = pktl;
450 /* add the packet in the buffered packet list */
456 int avformat_queue_attached_pictures(AVFormatContext *s)
459 for (i = 0; i < s->nb_streams; i++)
460 if (s->streams[i]->disposition & AV_DISPOSITION_ATTACHED_PIC &&
461 s->streams[i]->discard < AVDISCARD_ALL) {
462 AVPacket copy = s->streams[i]->attached_pic;
463 copy.buf = av_buffer_ref(copy.buf);
465 return AVERROR(ENOMEM);
467 add_to_pktbuf(&s->raw_packet_buffer, ©, &s->raw_packet_buffer_end);
472 int avformat_open_input(AVFormatContext **ps, const char *filename, AVInputFormat *fmt, AVDictionary **options)
474 AVFormatContext *s = *ps;
476 AVDictionary *tmp = NULL;
477 ID3v2ExtraMeta *id3v2_extra_meta = NULL;
479 if (!s && !(s = avformat_alloc_context()))
480 return AVERROR(ENOMEM);
482 av_log(NULL, AV_LOG_ERROR, "Input context has not been properly allocated by avformat_alloc_context() and is not NULL either\n");
483 return AVERROR(EINVAL);
489 av_dict_copy(&tmp, *options, 0);
491 if ((ret = av_opt_set_dict(s, &tmp)) < 0)
494 if ((ret = init_input(s, filename, &tmp)) < 0)
496 s->probe_score = ret;
497 avio_skip(s->pb, s->skip_initial_bytes);
499 /* check filename in case an image number is expected */
500 if (s->iformat->flags & AVFMT_NEEDNUMBER) {
501 if (!av_filename_number_test(filename)) {
502 ret = AVERROR(EINVAL);
507 s->duration = s->start_time = AV_NOPTS_VALUE;
508 av_strlcpy(s->filename, filename ? filename : "", sizeof(s->filename));
510 /* allocate private data */
511 if (s->iformat->priv_data_size > 0) {
512 if (!(s->priv_data = av_mallocz(s->iformat->priv_data_size))) {
513 ret = AVERROR(ENOMEM);
516 if (s->iformat->priv_class) {
517 *(const AVClass**)s->priv_data = s->iformat->priv_class;
518 av_opt_set_defaults(s->priv_data);
519 if ((ret = av_opt_set_dict(s->priv_data, &tmp)) < 0)
524 /* e.g. AVFMT_NOFILE formats will not have a AVIOContext */
526 ff_id3v2_read(s, ID3v2_DEFAULT_MAGIC, &id3v2_extra_meta);
528 if (!(s->flags&AVFMT_FLAG_PRIV_OPT) && s->iformat->read_header)
529 if ((ret = s->iformat->read_header(s)) < 0)
532 if (id3v2_extra_meta) {
533 if (!strcmp(s->iformat->name, "mp3") || !strcmp(s->iformat->name, "aac") ||
534 !strcmp(s->iformat->name, "tta")) {
535 if((ret = ff_id3v2_parse_apic(s, &id3v2_extra_meta)) < 0)
538 av_log(s, AV_LOG_DEBUG, "demuxer does not support additional id3 data, skipping\n");
540 ff_id3v2_free_extra_meta(&id3v2_extra_meta);
542 if ((ret = avformat_queue_attached_pictures(s)) < 0)
545 if (!(s->flags&AVFMT_FLAG_PRIV_OPT) && s->pb && !s->data_offset)
546 s->data_offset = avio_tell(s->pb);
548 s->raw_packet_buffer_remaining_size = RAW_PACKET_BUFFER_SIZE;
551 av_dict_free(options);
558 ff_id3v2_free_extra_meta(&id3v2_extra_meta);
560 if (s->pb && !(s->flags & AVFMT_FLAG_CUSTOM_IO))
562 avformat_free_context(s);
567 /*******************************************************/
569 static void force_codec_ids(AVFormatContext *s, AVStream *st)
571 switch(st->codec->codec_type){
572 case AVMEDIA_TYPE_VIDEO:
573 if(s->video_codec_id) st->codec->codec_id= s->video_codec_id;
575 case AVMEDIA_TYPE_AUDIO:
576 if(s->audio_codec_id) st->codec->codec_id= s->audio_codec_id;
578 case AVMEDIA_TYPE_SUBTITLE:
579 if(s->subtitle_codec_id)st->codec->codec_id= s->subtitle_codec_id;
584 static int probe_codec(AVFormatContext *s, AVStream *st, const AVPacket *pkt)
586 if(st->request_probe>0){
587 AVProbeData *pd = &st->probe_data;
589 av_log(s, AV_LOG_DEBUG, "probing stream %d pp:%d\n", st->index, st->probe_packets);
593 uint8_t *new_buf = av_realloc(pd->buf, pd->buf_size+pkt->size+AVPROBE_PADDING_SIZE);
595 av_log(s, AV_LOG_WARNING,
596 "Failed to reallocate probe buffer for stream %d\n",
601 memcpy(pd->buf+pd->buf_size, pkt->data, pkt->size);
602 pd->buf_size += pkt->size;
603 memset(pd->buf+pd->buf_size, 0, AVPROBE_PADDING_SIZE);
606 st->probe_packets = 0;
608 av_log(s, AV_LOG_WARNING, "nothing to probe for stream %d\n",
613 end= s->raw_packet_buffer_remaining_size <= 0
614 || st->probe_packets<=0;
616 if(end || av_log2(pd->buf_size) != av_log2(pd->buf_size - pkt->size)){
617 int score= set_codec_from_probe_data(s, st, pd);
618 if( (st->codec->codec_id != AV_CODEC_ID_NONE && score > AVPROBE_SCORE_RETRY)
622 st->request_probe= -1;
623 if(st->codec->codec_id != AV_CODEC_ID_NONE){
624 av_log(s, AV_LOG_DEBUG, "probed stream %d\n", st->index);
626 av_log(s, AV_LOG_WARNING, "probed stream %d failed\n", st->index);
628 force_codec_ids(s, st);
634 int ff_read_packet(AVFormatContext *s, AVPacket *pkt)
640 AVPacketList *pktl = s->raw_packet_buffer;
644 st = s->streams[pkt->stream_index];
645 if (s->raw_packet_buffer_remaining_size <= 0) {
646 if ((err = probe_codec(s, st, NULL)) < 0)
649 if(st->request_probe <= 0){
650 s->raw_packet_buffer = pktl->next;
651 s->raw_packet_buffer_remaining_size += pkt->size;
660 ret= s->iformat->read_packet(s, pkt);
662 if (!pktl || ret == AVERROR(EAGAIN))
664 for (i = 0; i < s->nb_streams; i++) {
666 if (st->probe_packets) {
667 if ((err = probe_codec(s, st, NULL)) < 0)
670 av_assert0(st->request_probe <= 0);
675 if ((s->flags & AVFMT_FLAG_DISCARD_CORRUPT) &&
676 (pkt->flags & AV_PKT_FLAG_CORRUPT)) {
677 av_log(s, AV_LOG_WARNING,
678 "Dropped corrupted packet (stream = %d)\n",
684 if(!(s->flags & AVFMT_FLAG_KEEP_SIDE_DATA))
685 av_packet_merge_side_data(pkt);
687 if(pkt->stream_index >= (unsigned)s->nb_streams){
688 av_log(s, AV_LOG_ERROR, "Invalid stream index %d\n", pkt->stream_index);
692 st= s->streams[pkt->stream_index];
693 pkt->dts = wrap_timestamp(st, pkt->dts);
694 pkt->pts = wrap_timestamp(st, pkt->pts);
696 force_codec_ids(s, st);
698 /* TODO: audio: time filter; video: frame reordering (pts != dts) */
699 if (s->use_wallclock_as_timestamps)
700 pkt->dts = pkt->pts = av_rescale_q(av_gettime(), AV_TIME_BASE_Q, st->time_base);
702 if(!pktl && st->request_probe <= 0)
705 add_to_pktbuf(&s->raw_packet_buffer, pkt, &s->raw_packet_buffer_end);
706 s->raw_packet_buffer_remaining_size -= pkt->size;
708 if ((err = probe_codec(s, st, pkt)) < 0)
713 #if FF_API_READ_PACKET
714 int av_read_packet(AVFormatContext *s, AVPacket *pkt)
716 return ff_read_packet(s, pkt);
721 /**********************************************************/
723 static int determinable_frame_size(AVCodecContext *avctx)
725 if (/*avctx->codec_id == AV_CODEC_ID_AAC ||*/
726 avctx->codec_id == AV_CODEC_ID_MP1 ||
727 avctx->codec_id == AV_CODEC_ID_MP2 ||
728 avctx->codec_id == AV_CODEC_ID_MP3/* ||
729 avctx->codec_id == AV_CODEC_ID_CELT*/)
735 * Get the number of samples of an audio frame. Return -1 on error.
737 int ff_get_audio_frame_size(AVCodecContext *enc, int size, int mux)
741 /* give frame_size priority if demuxing */
742 if (!mux && enc->frame_size > 1)
743 return enc->frame_size;
745 if ((frame_size = av_get_audio_frame_duration(enc, size)) > 0)
748 /* Fall back on using frame_size if muxing. */
749 if (enc->frame_size > 1)
750 return enc->frame_size;
752 //For WMA we currently have no other means to calculate duration thus we
753 //do it here by assuming CBR, which is true for all known cases.
754 if(!mux && enc->bit_rate>0 && size>0 && enc->sample_rate>0 && enc->block_align>1) {
755 if (enc->codec_id == AV_CODEC_ID_WMAV1 || enc->codec_id == AV_CODEC_ID_WMAV2)
756 return ((int64_t)size * 8 * enc->sample_rate) / enc->bit_rate;
764 * Return the frame duration in seconds. Return 0 if not available.
766 void ff_compute_frame_duration(int *pnum, int *pden, AVStream *st,
767 AVCodecParserContext *pc, AVPacket *pkt)
773 switch(st->codec->codec_type) {
774 case AVMEDIA_TYPE_VIDEO:
775 if (st->r_frame_rate.num && !pc) {
776 *pnum = st->r_frame_rate.den;
777 *pden = st->r_frame_rate.num;
778 } else if(st->time_base.num*1000LL > st->time_base.den) {
779 *pnum = st->time_base.num;
780 *pden = st->time_base.den;
781 }else if(st->codec->time_base.num*1000LL > st->codec->time_base.den){
782 *pnum = st->codec->time_base.num;
783 *pden = st->codec->time_base.den;
784 if (pc && pc->repeat_pict) {
785 if (*pnum > INT_MAX / (1 + pc->repeat_pict))
786 *pden /= 1 + pc->repeat_pict;
788 *pnum *= 1 + pc->repeat_pict;
790 //If this codec can be interlaced or progressive then we need a parser to compute duration of a packet
791 //Thus if we have no parser in such case leave duration undefined.
792 if(st->codec->ticks_per_frame>1 && !pc){
797 case AVMEDIA_TYPE_AUDIO:
798 frame_size = ff_get_audio_frame_size(st->codec, pkt->size, 0);
799 if (frame_size <= 0 || st->codec->sample_rate <= 0)
802 *pden = st->codec->sample_rate;
809 static int is_intra_only(AVCodecContext *enc){
810 const AVCodecDescriptor *desc;
812 if(enc->codec_type != AVMEDIA_TYPE_VIDEO)
815 desc = av_codec_get_codec_descriptor(enc);
817 desc = avcodec_descriptor_get(enc->codec_id);
818 av_codec_set_codec_descriptor(enc, desc);
821 return !!(desc->props & AV_CODEC_PROP_INTRA_ONLY);
825 static int has_decode_delay_been_guessed(AVStream *st)
827 if(st->codec->codec_id != AV_CODEC_ID_H264) return 1;
828 if(!st->info) // if we have left find_stream_info then nb_decoded_frames won't increase anymore for stream copy
830 #if CONFIG_H264_DECODER
831 if(st->codec->has_b_frames &&
832 avpriv_h264_has_num_reorder_frames(st->codec) == st->codec->has_b_frames)
835 if(st->codec->has_b_frames<3)
836 return st->nb_decoded_frames >= 7;
837 else if(st->codec->has_b_frames<4)
838 return st->nb_decoded_frames >= 18;
840 return st->nb_decoded_frames >= 20;
843 static AVPacketList *get_next_pkt(AVFormatContext *s, AVStream *st, AVPacketList *pktl)
847 if (pktl == s->parse_queue_end)
848 return s->packet_buffer;
852 static int update_wrap_reference(AVFormatContext *s, AVStream *st, int stream_index)
854 if (s->correct_ts_overflow && st->pts_wrap_bits < 63 &&
855 st->pts_wrap_reference == AV_NOPTS_VALUE && st->first_dts != AV_NOPTS_VALUE) {
858 // reference time stamp should be 60 s before first time stamp
859 int64_t pts_wrap_reference = st->first_dts - av_rescale(60, st->time_base.den, st->time_base.num);
860 // if first time stamp is not more than 1/8 and 60s before the wrap point, subtract rather than add wrap offset
861 int pts_wrap_behavior = (st->first_dts < (1LL<<st->pts_wrap_bits) - (1LL<<st->pts_wrap_bits-3)) ||
862 (st->first_dts < (1LL<<st->pts_wrap_bits) - av_rescale(60, st->time_base.den, st->time_base.num)) ?
863 AV_PTS_WRAP_ADD_OFFSET : AV_PTS_WRAP_SUB_OFFSET;
865 AVProgram *first_program = av_find_program_from_stream(s, NULL, stream_index);
867 if (!first_program) {
868 int default_stream_index = av_find_default_stream_index(s);
869 if (s->streams[default_stream_index]->pts_wrap_reference == AV_NOPTS_VALUE) {
870 for (i=0; i<s->nb_streams; i++) {
871 s->streams[i]->pts_wrap_reference = pts_wrap_reference;
872 s->streams[i]->pts_wrap_behavior = pts_wrap_behavior;
876 st->pts_wrap_reference = s->streams[default_stream_index]->pts_wrap_reference;
877 st->pts_wrap_behavior = s->streams[default_stream_index]->pts_wrap_behavior;
881 AVProgram *program = first_program;
883 if (program->pts_wrap_reference != AV_NOPTS_VALUE) {
884 pts_wrap_reference = program->pts_wrap_reference;
885 pts_wrap_behavior = program->pts_wrap_behavior;
888 program = av_find_program_from_stream(s, program, stream_index);
891 // update every program with differing pts_wrap_reference
892 program = first_program;
894 if (program->pts_wrap_reference != pts_wrap_reference) {
895 for (i=0; i<program->nb_stream_indexes; i++) {
896 s->streams[program->stream_index[i]]->pts_wrap_reference = pts_wrap_reference;
897 s->streams[program->stream_index[i]]->pts_wrap_behavior = pts_wrap_behavior;
900 program->pts_wrap_reference = pts_wrap_reference;
901 program->pts_wrap_behavior = pts_wrap_behavior;
903 program = av_find_program_from_stream(s, program, stream_index);
911 static void update_initial_timestamps(AVFormatContext *s, int stream_index,
912 int64_t dts, int64_t pts, AVPacket *pkt)
914 AVStream *st= s->streams[stream_index];
915 AVPacketList *pktl= s->parse_queue ? s->parse_queue : s->packet_buffer;
916 int64_t pts_buffer[MAX_REORDER_DELAY+1];
920 if(st->first_dts != AV_NOPTS_VALUE || dts == AV_NOPTS_VALUE || st->cur_dts == AV_NOPTS_VALUE || is_relative(dts))
923 delay = st->codec->has_b_frames;
924 st->first_dts= dts - (st->cur_dts - RELATIVE_TS_BASE);
926 shift = st->first_dts - RELATIVE_TS_BASE;
928 for (i=0; i<MAX_REORDER_DELAY+1; i++)
929 pts_buffer[i] = AV_NOPTS_VALUE;
931 if (is_relative(pts))
934 for(; pktl; pktl= get_next_pkt(s, st, pktl)){
935 if(pktl->pkt.stream_index != stream_index)
937 if(is_relative(pktl->pkt.pts))
938 pktl->pkt.pts += shift;
940 if(is_relative(pktl->pkt.dts))
941 pktl->pkt.dts += shift;
943 if(st->start_time == AV_NOPTS_VALUE && pktl->pkt.pts != AV_NOPTS_VALUE)
944 st->start_time= pktl->pkt.pts;
946 if(pktl->pkt.pts != AV_NOPTS_VALUE && delay <= MAX_REORDER_DELAY && has_decode_delay_been_guessed(st)){
947 pts_buffer[0]= pktl->pkt.pts;
948 for(i=0; i<delay && pts_buffer[i] > pts_buffer[i+1]; i++)
949 FFSWAP(int64_t, pts_buffer[i], pts_buffer[i+1]);
950 if(pktl->pkt.dts == AV_NOPTS_VALUE)
951 pktl->pkt.dts= pts_buffer[0];
955 if (update_wrap_reference(s, st, stream_index) && st->pts_wrap_behavior == AV_PTS_WRAP_SUB_OFFSET) {
956 // correct first time stamps to negative values
957 st->first_dts = wrap_timestamp(st, st->first_dts);
958 st->cur_dts = wrap_timestamp(st, st->cur_dts);
959 pkt->dts = wrap_timestamp(st, pkt->dts);
960 pkt->pts = wrap_timestamp(st, pkt->pts);
961 pts = wrap_timestamp(st, pts);
964 if (st->start_time == AV_NOPTS_VALUE)
965 st->start_time = pts;
968 static void update_initial_durations(AVFormatContext *s, AVStream *st,
969 int stream_index, int duration)
971 AVPacketList *pktl= s->parse_queue ? s->parse_queue : s->packet_buffer;
972 int64_t cur_dts= RELATIVE_TS_BASE;
974 if(st->first_dts != AV_NOPTS_VALUE){
975 cur_dts= st->first_dts;
976 for(; pktl; pktl= get_next_pkt(s, st, pktl)){
977 if(pktl->pkt.stream_index == stream_index){
978 if(pktl->pkt.pts != pktl->pkt.dts || pktl->pkt.dts != AV_NOPTS_VALUE || pktl->pkt.duration)
983 if(pktl && pktl->pkt.dts != st->first_dts) {
984 av_log(s, AV_LOG_DEBUG, "first_dts %s not matching first dts %s in the queue\n", av_ts2str(st->first_dts), av_ts2str(pktl->pkt.dts));
988 av_log(s, AV_LOG_DEBUG, "first_dts %s but no packet with dts in the queue\n", av_ts2str(st->first_dts));
991 pktl= s->parse_queue ? s->parse_queue : s->packet_buffer;
992 st->first_dts = cur_dts;
993 }else if(st->cur_dts != RELATIVE_TS_BASE)
996 for(; pktl; pktl= get_next_pkt(s, st, pktl)){
997 if(pktl->pkt.stream_index != stream_index)
999 if(pktl->pkt.pts == pktl->pkt.dts && (pktl->pkt.dts == AV_NOPTS_VALUE || pktl->pkt.dts == st->first_dts)
1000 && !pktl->pkt.duration){
1001 pktl->pkt.dts= cur_dts;
1002 if(!st->codec->has_b_frames)
1003 pktl->pkt.pts= cur_dts;
1004 // if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
1005 pktl->pkt.duration = duration;
1008 cur_dts = pktl->pkt.dts + pktl->pkt.duration;
1011 st->cur_dts= cur_dts;
1014 static void compute_pkt_fields(AVFormatContext *s, AVStream *st,
1015 AVCodecParserContext *pc, AVPacket *pkt)
1017 int num, den, presentation_delayed, delay, i;
1020 if (s->flags & AVFMT_FLAG_NOFILLIN)
1023 if((s->flags & AVFMT_FLAG_IGNDTS) && pkt->pts != AV_NOPTS_VALUE)
1024 pkt->dts= AV_NOPTS_VALUE;
1026 if (st->codec->codec_id != AV_CODEC_ID_H264 && pc && pc->pict_type == AV_PICTURE_TYPE_B)
1027 //FIXME Set low_delay = 0 when has_b_frames = 1
1028 st->codec->has_b_frames = 1;
1030 /* do we have a video B-frame ? */
1031 delay= st->codec->has_b_frames;
1032 presentation_delayed = 0;
1034 /* XXX: need has_b_frame, but cannot get it if the codec is
1037 pc && pc->pict_type != AV_PICTURE_TYPE_B)
1038 presentation_delayed = 1;
1040 if (pkt->pts != AV_NOPTS_VALUE && pkt->dts != AV_NOPTS_VALUE &&
1041 st->pts_wrap_bits < 63 &&
1042 pkt->dts - (1LL << (st->pts_wrap_bits - 1)) > pkt->pts) {
1043 if(is_relative(st->cur_dts) || pkt->dts - (1LL<<(st->pts_wrap_bits-1)) > st->cur_dts) {
1044 pkt->dts -= 1LL<<st->pts_wrap_bits;
1046 pkt->pts += 1LL<<st->pts_wrap_bits;
1049 // some mpeg2 in mpeg-ps lack dts (issue171 / input_file.mpg)
1050 // we take the conservative approach and discard both
1051 // Note, if this is misbehaving for a H.264 file then possibly presentation_delayed is not set correctly.
1052 if(delay==1 && pkt->dts == pkt->pts && pkt->dts != AV_NOPTS_VALUE && presentation_delayed){
1053 av_log(s, AV_LOG_DEBUG, "invalid dts/pts combination %"PRIi64"\n", pkt->dts);
1054 if(strcmp(s->iformat->name, "mov,mp4,m4a,3gp,3g2,mj2")) // otherwise we discard correct timestamps for vc1-wmapro.ism
1055 pkt->dts= AV_NOPTS_VALUE;
1058 if (pkt->duration == 0) {
1059 ff_compute_frame_duration(&num, &den, st, pc, pkt);
1061 pkt->duration = av_rescale_rnd(1, num * (int64_t)st->time_base.den, den * (int64_t)st->time_base.num, AV_ROUND_DOWN);
1064 if(pkt->duration != 0 && (s->packet_buffer || s->parse_queue))
1065 update_initial_durations(s, st, pkt->stream_index, pkt->duration);
1067 /* correct timestamps with byte offset if demuxers only have timestamps
1068 on packet boundaries */
1069 if(pc && st->need_parsing == AVSTREAM_PARSE_TIMESTAMPS && pkt->size){
1070 /* this will estimate bitrate based on this frame's duration and size */
1071 offset = av_rescale(pc->offset, pkt->duration, pkt->size);
1072 if(pkt->pts != AV_NOPTS_VALUE)
1074 if(pkt->dts != AV_NOPTS_VALUE)
1078 if (pc && pc->dts_sync_point >= 0) {
1079 // we have synchronization info from the parser
1080 int64_t den = st->codec->time_base.den * (int64_t) st->time_base.num;
1082 int64_t num = st->codec->time_base.num * (int64_t) st->time_base.den;
1083 if (pkt->dts != AV_NOPTS_VALUE) {
1084 // got DTS from the stream, update reference timestamp
1085 st->reference_dts = pkt->dts - pc->dts_ref_dts_delta * num / den;
1086 pkt->pts = pkt->dts + pc->pts_dts_delta * num / den;
1087 } else if (st->reference_dts != AV_NOPTS_VALUE) {
1088 // compute DTS based on reference timestamp
1089 pkt->dts = st->reference_dts + pc->dts_ref_dts_delta * num / den;
1090 pkt->pts = pkt->dts + pc->pts_dts_delta * num / den;
1092 if (pc->dts_sync_point > 0)
1093 st->reference_dts = pkt->dts; // new reference
1097 /* This may be redundant, but it should not hurt. */
1098 if(pkt->dts != AV_NOPTS_VALUE && pkt->pts != AV_NOPTS_VALUE && pkt->pts > pkt->dts)
1099 presentation_delayed = 1;
1101 av_dlog(NULL, "IN delayed:%d pts:%s, dts:%s cur_dts:%s st:%d pc:%p duration:%d\n",
1102 presentation_delayed, av_ts2str(pkt->pts), av_ts2str(pkt->dts), av_ts2str(st->cur_dts), pkt->stream_index, pc, pkt->duration);
1103 /* interpolate PTS and DTS if they are not present */
1104 //We skip H264 currently because delay and has_b_frames are not reliably set
1105 if((delay==0 || (delay==1 && pc)) && st->codec->codec_id != AV_CODEC_ID_H264){
1106 if (presentation_delayed) {
1107 /* DTS = decompression timestamp */
1108 /* PTS = presentation timestamp */
1109 if (pkt->dts == AV_NOPTS_VALUE)
1110 pkt->dts = st->last_IP_pts;
1111 update_initial_timestamps(s, pkt->stream_index, pkt->dts, pkt->pts, pkt);
1112 if (pkt->dts == AV_NOPTS_VALUE)
1113 pkt->dts = st->cur_dts;
1115 /* this is tricky: the dts must be incremented by the duration
1116 of the frame we are displaying, i.e. the last I- or P-frame */
1117 if (st->last_IP_duration == 0)
1118 st->last_IP_duration = pkt->duration;
1119 if(pkt->dts != AV_NOPTS_VALUE)
1120 st->cur_dts = pkt->dts + st->last_IP_duration;
1121 st->last_IP_duration = pkt->duration;
1122 st->last_IP_pts= pkt->pts;
1123 /* cannot compute PTS if not present (we can compute it only
1124 by knowing the future */
1125 } else if (pkt->pts != AV_NOPTS_VALUE ||
1126 pkt->dts != AV_NOPTS_VALUE ||
1128 int duration = pkt->duration;
1130 /* presentation is not delayed : PTS and DTS are the same */
1131 if (pkt->pts == AV_NOPTS_VALUE)
1132 pkt->pts = pkt->dts;
1133 update_initial_timestamps(s, pkt->stream_index, pkt->pts,
1135 if (pkt->pts == AV_NOPTS_VALUE)
1136 pkt->pts = st->cur_dts;
1137 pkt->dts = pkt->pts;
1138 if (pkt->pts != AV_NOPTS_VALUE)
1139 st->cur_dts = pkt->pts + duration;
1143 if(pkt->pts != AV_NOPTS_VALUE && delay <= MAX_REORDER_DELAY && has_decode_delay_been_guessed(st)){
1144 st->pts_buffer[0]= pkt->pts;
1145 for(i=0; i<delay && st->pts_buffer[i] > st->pts_buffer[i+1]; i++)
1146 FFSWAP(int64_t, st->pts_buffer[i], st->pts_buffer[i+1]);
1147 if(pkt->dts == AV_NOPTS_VALUE)
1148 pkt->dts= st->pts_buffer[0];
1150 if(st->codec->codec_id == AV_CODEC_ID_H264){ // we skipped it above so we try here
1151 update_initial_timestamps(s, pkt->stream_index, pkt->dts, pkt->pts, pkt); // this should happen on the first packet
1153 if(pkt->dts > st->cur_dts)
1154 st->cur_dts = pkt->dts;
1156 av_dlog(NULL, "OUTdelayed:%d/%d pts:%s, dts:%s cur_dts:%s\n",
1157 presentation_delayed, delay, av_ts2str(pkt->pts), av_ts2str(pkt->dts), av_ts2str(st->cur_dts));
1160 if (is_intra_only(st->codec))
1161 pkt->flags |= AV_PKT_FLAG_KEY;
1163 pkt->convergence_duration = pc->convergence_duration;
1166 static void free_packet_buffer(AVPacketList **pkt_buf, AVPacketList **pkt_buf_end)
1169 AVPacketList *pktl = *pkt_buf;
1170 *pkt_buf = pktl->next;
1171 av_free_packet(&pktl->pkt);
1174 *pkt_buf_end = NULL;
1178 * Parse a packet, add all split parts to parse_queue
1180 * @param pkt packet to parse, NULL when flushing the parser at end of stream
1182 static int parse_packet(AVFormatContext *s, AVPacket *pkt, int stream_index)
1184 AVPacket out_pkt = { 0 }, flush_pkt = { 0 };
1185 AVStream *st = s->streams[stream_index];
1186 uint8_t *data = pkt ? pkt->data : NULL;
1187 int size = pkt ? pkt->size : 0;
1188 int ret = 0, got_output = 0;
1191 av_init_packet(&flush_pkt);
1194 } else if (!size && st->parser->flags & PARSER_FLAG_COMPLETE_FRAMES) {
1195 // preserve 0-size sync packets
1196 compute_pkt_fields(s, st, st->parser, pkt);
1199 while (size > 0 || (pkt == &flush_pkt && got_output)) {
1202 av_init_packet(&out_pkt);
1203 len = av_parser_parse2(st->parser, st->codec,
1204 &out_pkt.data, &out_pkt.size, data, size,
1205 pkt->pts, pkt->dts, pkt->pos);
1207 pkt->pts = pkt->dts = AV_NOPTS_VALUE;
1209 /* increment read pointer */
1213 got_output = !!out_pkt.size;
1218 if (pkt->side_data) {
1219 out_pkt.side_data = pkt->side_data;
1220 out_pkt.side_data_elems = pkt->side_data_elems;
1221 pkt->side_data = NULL;
1222 pkt->side_data_elems = 0;
1225 /* set the duration */
1226 out_pkt.duration = 0;
1227 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1228 if (st->codec->sample_rate > 0) {
1229 out_pkt.duration = av_rescale_q_rnd(st->parser->duration,
1230 (AVRational){ 1, st->codec->sample_rate },
1234 } else if (st->codec->time_base.num != 0 &&
1235 st->codec->time_base.den != 0) {
1236 out_pkt.duration = av_rescale_q_rnd(st->parser->duration,
1237 st->codec->time_base,
1242 out_pkt.stream_index = st->index;
1243 out_pkt.pts = st->parser->pts;
1244 out_pkt.dts = st->parser->dts;
1245 out_pkt.pos = st->parser->pos;
1247 if(st->need_parsing == AVSTREAM_PARSE_FULL_RAW)
1248 out_pkt.pos = st->parser->frame_offset;
1250 if (st->parser->key_frame == 1 ||
1251 (st->parser->key_frame == -1 &&
1252 st->parser->pict_type == AV_PICTURE_TYPE_I))
1253 out_pkt.flags |= AV_PKT_FLAG_KEY;
1255 if(st->parser->key_frame == -1 && st->parser->pict_type==AV_PICTURE_TYPE_NONE && (pkt->flags&AV_PKT_FLAG_KEY))
1256 out_pkt.flags |= AV_PKT_FLAG_KEY;
1258 compute_pkt_fields(s, st, st->parser, &out_pkt);
1260 if (out_pkt.data == pkt->data && out_pkt.size == pkt->size) {
1261 out_pkt.buf = pkt->buf;
1263 #if FF_API_DESTRUCT_PACKET
1264 FF_DISABLE_DEPRECATION_WARNINGS
1265 out_pkt.destruct = pkt->destruct;
1266 pkt->destruct = NULL;
1267 FF_ENABLE_DEPRECATION_WARNINGS
1270 if ((ret = av_dup_packet(&out_pkt)) < 0)
1273 if (!add_to_pktbuf(&s->parse_queue, &out_pkt, &s->parse_queue_end)) {
1274 av_free_packet(&out_pkt);
1275 ret = AVERROR(ENOMEM);
1281 /* end of the stream => close and free the parser */
1282 if (pkt == &flush_pkt) {
1283 av_parser_close(st->parser);
1288 av_free_packet(pkt);
1292 static int read_from_packet_buffer(AVPacketList **pkt_buffer,
1293 AVPacketList **pkt_buffer_end,
1297 av_assert0(*pkt_buffer);
1300 *pkt_buffer = pktl->next;
1302 *pkt_buffer_end = NULL;
1307 static int read_frame_internal(AVFormatContext *s, AVPacket *pkt)
1309 int ret = 0, i, got_packet = 0;
1311 av_init_packet(pkt);
1313 while (!got_packet && !s->parse_queue) {
1317 /* read next packet */
1318 ret = ff_read_packet(s, &cur_pkt);
1320 if (ret == AVERROR(EAGAIN))
1322 /* flush the parsers */
1323 for(i = 0; i < s->nb_streams; i++) {
1325 if (st->parser && st->need_parsing)
1326 parse_packet(s, NULL, st->index);
1328 /* all remaining packets are now in parse_queue =>
1329 * really terminate parsing */
1333 st = s->streams[cur_pkt.stream_index];
1335 if (cur_pkt.pts != AV_NOPTS_VALUE &&
1336 cur_pkt.dts != AV_NOPTS_VALUE &&
1337 cur_pkt.pts < cur_pkt.dts) {
1338 av_log(s, AV_LOG_WARNING, "Invalid timestamps stream=%d, pts=%s, dts=%s, size=%d\n",
1339 cur_pkt.stream_index,
1340 av_ts2str(cur_pkt.pts),
1341 av_ts2str(cur_pkt.dts),
1344 if (s->debug & FF_FDEBUG_TS)
1345 av_log(s, AV_LOG_DEBUG, "ff_read_packet stream=%d, pts=%s, dts=%s, size=%d, duration=%d, flags=%d\n",
1346 cur_pkt.stream_index,
1347 av_ts2str(cur_pkt.pts),
1348 av_ts2str(cur_pkt.dts),
1353 if (st->need_parsing && !st->parser && !(s->flags & AVFMT_FLAG_NOPARSE)) {
1354 st->parser = av_parser_init(st->codec->codec_id);
1356 av_log(s, AV_LOG_VERBOSE, "parser not found for codec "
1357 "%s, packets or times may be invalid.\n",
1358 avcodec_get_name(st->codec->codec_id));
1359 /* no parser available: just output the raw packets */
1360 st->need_parsing = AVSTREAM_PARSE_NONE;
1361 } else if(st->need_parsing == AVSTREAM_PARSE_HEADERS) {
1362 st->parser->flags |= PARSER_FLAG_COMPLETE_FRAMES;
1363 } else if(st->need_parsing == AVSTREAM_PARSE_FULL_ONCE) {
1364 st->parser->flags |= PARSER_FLAG_ONCE;
1365 } else if(st->need_parsing == AVSTREAM_PARSE_FULL_RAW) {
1366 st->parser->flags |= PARSER_FLAG_USE_CODEC_TS;
1370 if (!st->need_parsing || !st->parser) {
1371 /* no parsing needed: we just output the packet as is */
1373 compute_pkt_fields(s, st, NULL, pkt);
1374 if ((s->iformat->flags & AVFMT_GENERIC_INDEX) &&
1375 (pkt->flags & AV_PKT_FLAG_KEY) && pkt->dts != AV_NOPTS_VALUE) {
1376 ff_reduce_index(s, st->index);
1377 av_add_index_entry(st, pkt->pos, pkt->dts, 0, 0, AVINDEX_KEYFRAME);
1380 } else if (st->discard < AVDISCARD_ALL) {
1381 if ((ret = parse_packet(s, &cur_pkt, cur_pkt.stream_index)) < 0)
1385 av_free_packet(&cur_pkt);
1387 if (pkt->flags & AV_PKT_FLAG_KEY)
1388 st->skip_to_keyframe = 0;
1389 if (st->skip_to_keyframe) {
1390 av_free_packet(&cur_pkt);
1398 if (!got_packet && s->parse_queue)
1399 ret = read_from_packet_buffer(&s->parse_queue, &s->parse_queue_end, pkt);
1401 if(s->debug & FF_FDEBUG_TS)
1402 av_log(s, AV_LOG_DEBUG, "read_frame_internal stream=%d, pts=%s, dts=%s, size=%d, duration=%d, flags=%d\n",
1404 av_ts2str(pkt->pts),
1405 av_ts2str(pkt->dts),
1413 int av_read_frame(AVFormatContext *s, AVPacket *pkt)
1415 const int genpts = s->flags & AVFMT_FLAG_GENPTS;
1421 ret = s->packet_buffer ?
1422 read_from_packet_buffer(&s->packet_buffer, &s->packet_buffer_end, pkt) :
1423 read_frame_internal(s, pkt);
1430 AVPacketList *pktl = s->packet_buffer;
1433 AVPacket *next_pkt = &pktl->pkt;
1435 if (next_pkt->dts != AV_NOPTS_VALUE) {
1436 int wrap_bits = s->streams[next_pkt->stream_index]->pts_wrap_bits;
1437 // last dts seen for this stream. if any of packets following
1438 // current one had no dts, we will set this to AV_NOPTS_VALUE.
1439 int64_t last_dts = next_pkt->dts;
1440 while (pktl && next_pkt->pts == AV_NOPTS_VALUE) {
1441 if (pktl->pkt.stream_index == next_pkt->stream_index &&
1442 (av_compare_mod(next_pkt->dts, pktl->pkt.dts, 2LL << (wrap_bits - 1)) < 0)) {
1443 if (av_compare_mod(pktl->pkt.pts, pktl->pkt.dts, 2LL << (wrap_bits - 1))) { //not b frame
1444 next_pkt->pts = pktl->pkt.dts;
1446 if (last_dts != AV_NOPTS_VALUE) {
1447 // Once last dts was set to AV_NOPTS_VALUE, we don't change it.
1448 last_dts = pktl->pkt.dts;
1453 if (eof && next_pkt->pts == AV_NOPTS_VALUE && last_dts != AV_NOPTS_VALUE) {
1454 // Fixing the last reference frame had none pts issue (For MXF etc).
1455 // We only do this when
1457 // 2. we are not able to resolve a pts value for current packet.
1458 // 3. the packets for this stream at the end of the files had valid dts.
1459 next_pkt->pts = last_dts + next_pkt->duration;
1461 pktl = s->packet_buffer;
1464 /* read packet from packet buffer, if there is data */
1465 if (!(next_pkt->pts == AV_NOPTS_VALUE &&
1466 next_pkt->dts != AV_NOPTS_VALUE && !eof)) {
1467 ret = read_from_packet_buffer(&s->packet_buffer,
1468 &s->packet_buffer_end, pkt);
1473 ret = read_frame_internal(s, pkt);
1475 if (pktl && ret != AVERROR(EAGAIN)) {
1482 if (av_dup_packet(add_to_pktbuf(&s->packet_buffer, pkt,
1483 &s->packet_buffer_end)) < 0)
1484 return AVERROR(ENOMEM);
1489 st = s->streams[pkt->stream_index];
1490 if (st->skip_samples) {
1491 uint8_t *p = av_packet_new_side_data(pkt, AV_PKT_DATA_SKIP_SAMPLES, 10);
1492 AV_WL32(p, st->skip_samples);
1493 av_log(s, AV_LOG_DEBUG, "demuxer injecting skip %d\n", st->skip_samples);
1494 st->skip_samples = 0;
1497 if ((s->iformat->flags & AVFMT_GENERIC_INDEX) && pkt->flags & AV_PKT_FLAG_KEY) {
1498 ff_reduce_index(s, st->index);
1499 av_add_index_entry(st, pkt->pos, pkt->dts, 0, 0, AVINDEX_KEYFRAME);
1502 if (is_relative(pkt->dts))
1503 pkt->dts -= RELATIVE_TS_BASE;
1504 if (is_relative(pkt->pts))
1505 pkt->pts -= RELATIVE_TS_BASE;
1510 /* XXX: suppress the packet queue */
1511 static void flush_packet_queue(AVFormatContext *s)
1513 free_packet_buffer(&s->parse_queue, &s->parse_queue_end);
1514 free_packet_buffer(&s->packet_buffer, &s->packet_buffer_end);
1515 free_packet_buffer(&s->raw_packet_buffer, &s->raw_packet_buffer_end);
1517 s->raw_packet_buffer_remaining_size = RAW_PACKET_BUFFER_SIZE;
1520 /*******************************************************/
1523 int av_find_default_stream_index(AVFormatContext *s)
1525 int first_audio_index = -1;
1529 if (s->nb_streams <= 0)
1531 for(i = 0; i < s->nb_streams; i++) {
1533 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1534 !(st->disposition & AV_DISPOSITION_ATTACHED_PIC)) {
1537 if (first_audio_index < 0 && st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1538 first_audio_index = i;
1540 return first_audio_index >= 0 ? first_audio_index : 0;
1544 * Flush the frame reader.
1546 void ff_read_frame_flush(AVFormatContext *s)
1551 flush_packet_queue(s);
1553 /* for each stream, reset read state */
1554 for(i = 0; i < s->nb_streams; i++) {
1558 av_parser_close(st->parser);
1561 st->last_IP_pts = AV_NOPTS_VALUE;
1562 if(st->first_dts == AV_NOPTS_VALUE) st->cur_dts = RELATIVE_TS_BASE;
1563 else st->cur_dts = AV_NOPTS_VALUE; /* we set the current DTS to an unspecified origin */
1564 st->reference_dts = AV_NOPTS_VALUE;
1566 st->probe_packets = MAX_PROBE_PACKETS;
1568 for(j=0; j<MAX_REORDER_DELAY+1; j++)
1569 st->pts_buffer[j]= AV_NOPTS_VALUE;
1573 void ff_update_cur_dts(AVFormatContext *s, AVStream *ref_st, int64_t timestamp)
1577 for(i = 0; i < s->nb_streams; i++) {
1578 AVStream *st = s->streams[i];
1580 st->cur_dts = av_rescale(timestamp,
1581 st->time_base.den * (int64_t)ref_st->time_base.num,
1582 st->time_base.num * (int64_t)ref_st->time_base.den);
1586 void ff_reduce_index(AVFormatContext *s, int stream_index)
1588 AVStream *st= s->streams[stream_index];
1589 unsigned int max_entries= s->max_index_size / sizeof(AVIndexEntry);
1591 if((unsigned)st->nb_index_entries >= max_entries){
1593 for(i=0; 2*i<st->nb_index_entries; i++)
1594 st->index_entries[i]= st->index_entries[2*i];
1595 st->nb_index_entries= i;
1599 int ff_add_index_entry(AVIndexEntry **index_entries,
1600 int *nb_index_entries,
1601 unsigned int *index_entries_allocated_size,
1602 int64_t pos, int64_t timestamp, int size, int distance, int flags)
1604 AVIndexEntry *entries, *ie;
1607 if((unsigned)*nb_index_entries + 1 >= UINT_MAX / sizeof(AVIndexEntry))
1610 if(timestamp == AV_NOPTS_VALUE)
1611 return AVERROR(EINVAL);
1613 if (is_relative(timestamp)) //FIXME this maintains previous behavior but we should shift by the correct offset once known
1614 timestamp -= RELATIVE_TS_BASE;
1616 entries = av_fast_realloc(*index_entries,
1617 index_entries_allocated_size,
1618 (*nb_index_entries + 1) *
1619 sizeof(AVIndexEntry));
1623 *index_entries= entries;
1625 index= ff_index_search_timestamp(*index_entries, *nb_index_entries, timestamp, AVSEEK_FLAG_ANY);
1628 index= (*nb_index_entries)++;
1629 ie= &entries[index];
1630 av_assert0(index==0 || ie[-1].timestamp < timestamp);
1632 ie= &entries[index];
1633 if(ie->timestamp != timestamp){
1634 if(ie->timestamp <= timestamp)
1636 memmove(entries + index + 1, entries + index, sizeof(AVIndexEntry)*(*nb_index_entries - index));
1637 (*nb_index_entries)++;
1638 }else if(ie->pos == pos && distance < ie->min_distance) //do not reduce the distance
1639 distance= ie->min_distance;
1643 ie->timestamp = timestamp;
1644 ie->min_distance= distance;
1651 int av_add_index_entry(AVStream *st,
1652 int64_t pos, int64_t timestamp, int size, int distance, int flags)
1654 timestamp = wrap_timestamp(st, timestamp);
1655 return ff_add_index_entry(&st->index_entries, &st->nb_index_entries,
1656 &st->index_entries_allocated_size, pos,
1657 timestamp, size, distance, flags);
1660 int ff_index_search_timestamp(const AVIndexEntry *entries, int nb_entries,
1661 int64_t wanted_timestamp, int flags)
1669 //optimize appending index entries at the end
1670 if(b && entries[b-1].timestamp < wanted_timestamp)
1675 timestamp = entries[m].timestamp;
1676 if(timestamp >= wanted_timestamp)
1678 if(timestamp <= wanted_timestamp)
1681 m= (flags & AVSEEK_FLAG_BACKWARD) ? a : b;
1683 if(!(flags & AVSEEK_FLAG_ANY)){
1684 while(m>=0 && m<nb_entries && !(entries[m].flags & AVINDEX_KEYFRAME)){
1685 m += (flags & AVSEEK_FLAG_BACKWARD) ? -1 : 1;
1694 int av_index_search_timestamp(AVStream *st, int64_t wanted_timestamp,
1697 return ff_index_search_timestamp(st->index_entries, st->nb_index_entries,
1698 wanted_timestamp, flags);
1701 static int64_t ff_read_timestamp(AVFormatContext *s, int stream_index, int64_t *ppos, int64_t pos_limit,
1702 int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t ))
1704 int64_t ts = read_timestamp(s, stream_index, ppos, pos_limit);
1705 if (stream_index >= 0)
1706 ts = wrap_timestamp(s->streams[stream_index], ts);
1710 int ff_seek_frame_binary(AVFormatContext *s, int stream_index, int64_t target_ts, int flags)
1712 AVInputFormat *avif= s->iformat;
1713 int64_t av_uninit(pos_min), av_uninit(pos_max), pos, pos_limit;
1714 int64_t ts_min, ts_max, ts;
1719 if (stream_index < 0)
1722 av_dlog(s, "read_seek: %d %s\n", stream_index, av_ts2str(target_ts));
1725 ts_min= AV_NOPTS_VALUE;
1726 pos_limit= -1; //gcc falsely says it may be uninitialized
1728 st= s->streams[stream_index];
1729 if(st->index_entries){
1732 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()
1733 index= FFMAX(index, 0);
1734 e= &st->index_entries[index];
1736 if(e->timestamp <= target_ts || e->pos == e->min_distance){
1738 ts_min= e->timestamp;
1739 av_dlog(s, "using cached pos_min=0x%"PRIx64" dts_min=%s\n",
1740 pos_min, av_ts2str(ts_min));
1742 av_assert1(index==0);
1745 index= av_index_search_timestamp(st, target_ts, flags & ~AVSEEK_FLAG_BACKWARD);
1746 av_assert0(index < st->nb_index_entries);
1748 e= &st->index_entries[index];
1749 av_assert1(e->timestamp >= target_ts);
1751 ts_max= e->timestamp;
1752 pos_limit= pos_max - e->min_distance;
1753 av_dlog(s, "using cached pos_max=0x%"PRIx64" pos_limit=0x%"PRIx64" dts_max=%s\n",
1754 pos_max, pos_limit, av_ts2str(ts_max));
1758 pos= ff_gen_search(s, stream_index, target_ts, pos_min, pos_max, pos_limit, ts_min, ts_max, flags, &ts, avif->read_timestamp);
1763 if ((ret = avio_seek(s->pb, pos, SEEK_SET)) < 0)
1766 ff_read_frame_flush(s);
1767 ff_update_cur_dts(s, st, ts);
1772 int ff_find_last_ts(AVFormatContext *s, int stream_index, int64_t *ts, int64_t *pos,
1773 int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t ))
1776 int64_t limit, ts_max;
1777 int64_t filesize = avio_size(s->pb);
1778 int64_t pos_max = filesize - 1;
1781 pos_max = FFMAX(0, (pos_max) - step);
1782 ts_max = ff_read_timestamp(s, stream_index, &pos_max, limit, read_timestamp);
1784 }while(ts_max == AV_NOPTS_VALUE && 2*limit > step);
1785 if (ts_max == AV_NOPTS_VALUE)
1789 int64_t tmp_pos = pos_max + 1;
1790 int64_t tmp_ts = ff_read_timestamp(s, stream_index, &tmp_pos, INT64_MAX, read_timestamp);
1791 if(tmp_ts == AV_NOPTS_VALUE)
1793 av_assert0(tmp_pos > pos_max);
1796 if(tmp_pos >= filesize)
1808 int64_t ff_gen_search(AVFormatContext *s, int stream_index, int64_t target_ts,
1809 int64_t pos_min, int64_t pos_max, int64_t pos_limit,
1810 int64_t ts_min, int64_t ts_max, int flags, int64_t *ts_ret,
1811 int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t ))
1818 av_dlog(s, "gen_seek: %d %s\n", stream_index, av_ts2str(target_ts));
1820 if(ts_min == AV_NOPTS_VALUE){
1821 pos_min = s->data_offset;
1822 ts_min = ff_read_timestamp(s, stream_index, &pos_min, INT64_MAX, read_timestamp);
1823 if (ts_min == AV_NOPTS_VALUE)
1827 if(ts_min >= target_ts){
1832 if(ts_max == AV_NOPTS_VALUE){
1833 if ((ret = ff_find_last_ts(s, stream_index, &ts_max, &pos_max, read_timestamp)) < 0)
1838 if(ts_max <= target_ts){
1843 if(ts_min > ts_max){
1845 }else if(ts_min == ts_max){
1850 while (pos_min < pos_limit) {
1851 av_dlog(s, "pos_min=0x%"PRIx64" pos_max=0x%"PRIx64" dts_min=%s dts_max=%s\n",
1852 pos_min, pos_max, av_ts2str(ts_min), av_ts2str(ts_max));
1853 assert(pos_limit <= pos_max);
1856 int64_t approximate_keyframe_distance= pos_max - pos_limit;
1857 // interpolate position (better than dichotomy)
1858 pos = av_rescale(target_ts - ts_min, pos_max - pos_min, ts_max - ts_min)
1859 + pos_min - approximate_keyframe_distance;
1860 }else if(no_change==1){
1861 // bisection, if interpolation failed to change min or max pos last time
1862 pos = (pos_min + pos_limit)>>1;
1864 /* linear search if bisection failed, can only happen if there
1865 are very few or no keyframes between min/max */
1870 else if(pos > pos_limit)
1874 ts = ff_read_timestamp(s, stream_index, &pos, INT64_MAX, read_timestamp); //may pass pos_limit instead of -1
1879 av_dlog(s, "%"PRId64" %"PRId64" %"PRId64" / %s %s %s target:%s limit:%"PRId64" start:%"PRId64" noc:%d\n",
1880 pos_min, pos, pos_max,
1881 av_ts2str(ts_min), av_ts2str(ts), av_ts2str(ts_max), av_ts2str(target_ts),
1882 pos_limit, start_pos, no_change);
1883 if(ts == AV_NOPTS_VALUE){
1884 av_log(s, AV_LOG_ERROR, "read_timestamp() failed in the middle\n");
1887 assert(ts != AV_NOPTS_VALUE);
1888 if (target_ts <= ts) {
1889 pos_limit = start_pos - 1;
1893 if (target_ts >= ts) {
1899 pos = (flags & AVSEEK_FLAG_BACKWARD) ? pos_min : pos_max;
1900 ts = (flags & AVSEEK_FLAG_BACKWARD) ? ts_min : ts_max;
1903 ts_min = ff_read_timestamp(s, stream_index, &pos_min, INT64_MAX, read_timestamp);
1905 ts_max = ff_read_timestamp(s, stream_index, &pos_min, INT64_MAX, read_timestamp);
1906 av_dlog(s, "pos=0x%"PRIx64" %s<=%s<=%s\n",
1907 pos, av_ts2str(ts_min), av_ts2str(target_ts), av_ts2str(ts_max));
1913 static int seek_frame_byte(AVFormatContext *s, int stream_index, int64_t pos, int flags){
1914 int64_t pos_min, pos_max;
1916 pos_min = s->data_offset;
1917 pos_max = avio_size(s->pb) - 1;
1919 if (pos < pos_min) pos= pos_min;
1920 else if(pos > pos_max) pos= pos_max;
1922 avio_seek(s->pb, pos, SEEK_SET);
1924 s->io_repositioned = 1;
1929 static int seek_frame_generic(AVFormatContext *s,
1930 int stream_index, int64_t timestamp, int flags)
1937 st = s->streams[stream_index];
1939 index = av_index_search_timestamp(st, timestamp, flags);
1941 if(index < 0 && st->nb_index_entries && timestamp < st->index_entries[0].timestamp)
1944 if(index < 0 || index==st->nb_index_entries-1){
1948 if(st->nb_index_entries){
1949 av_assert0(st->index_entries);
1950 ie= &st->index_entries[st->nb_index_entries-1];
1951 if ((ret = avio_seek(s->pb, ie->pos, SEEK_SET)) < 0)
1953 ff_update_cur_dts(s, st, ie->timestamp);
1955 if ((ret = avio_seek(s->pb, s->data_offset, SEEK_SET)) < 0)
1961 read_status = av_read_frame(s, &pkt);
1962 } while (read_status == AVERROR(EAGAIN));
1963 if (read_status < 0)
1965 av_free_packet(&pkt);
1966 if(stream_index == pkt.stream_index && pkt.dts > timestamp){
1967 if(pkt.flags & AV_PKT_FLAG_KEY)
1969 if(nonkey++ > 1000 && st->codec->codec_id != AV_CODEC_ID_CDGRAPHICS){
1970 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);
1975 index = av_index_search_timestamp(st, timestamp, flags);
1980 ff_read_frame_flush(s);
1981 if (s->iformat->read_seek){
1982 if(s->iformat->read_seek(s, stream_index, timestamp, flags) >= 0)
1985 ie = &st->index_entries[index];
1986 if ((ret = avio_seek(s->pb, ie->pos, SEEK_SET)) < 0)
1988 ff_update_cur_dts(s, st, ie->timestamp);
1993 static int seek_frame_internal(AVFormatContext *s, int stream_index,
1994 int64_t timestamp, int flags)
1999 if (flags & AVSEEK_FLAG_BYTE) {
2000 if (s->iformat->flags & AVFMT_NO_BYTE_SEEK)
2002 ff_read_frame_flush(s);
2003 return seek_frame_byte(s, stream_index, timestamp, flags);
2006 if(stream_index < 0){
2007 stream_index= av_find_default_stream_index(s);
2008 if(stream_index < 0)
2011 st= s->streams[stream_index];
2012 /* timestamp for default must be expressed in AV_TIME_BASE units */
2013 timestamp = av_rescale(timestamp, st->time_base.den, AV_TIME_BASE * (int64_t)st->time_base.num);
2016 /* first, we try the format specific seek */
2017 if (s->iformat->read_seek) {
2018 ff_read_frame_flush(s);
2019 ret = s->iformat->read_seek(s, stream_index, timestamp, flags);
2026 if (s->iformat->read_timestamp && !(s->iformat->flags & AVFMT_NOBINSEARCH)) {
2027 ff_read_frame_flush(s);
2028 return ff_seek_frame_binary(s, stream_index, timestamp, flags);
2029 } else if (!(s->iformat->flags & AVFMT_NOGENSEARCH)) {
2030 ff_read_frame_flush(s);
2031 return seek_frame_generic(s, stream_index, timestamp, flags);
2037 int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
2041 if (s->iformat->read_seek2 && !s->iformat->read_seek) {
2042 int64_t min_ts = INT64_MIN, max_ts = INT64_MAX;
2043 if ((flags & AVSEEK_FLAG_BACKWARD))
2047 return avformat_seek_file(s, stream_index, min_ts, timestamp, max_ts,
2048 flags & ~AVSEEK_FLAG_BACKWARD);
2051 ret = seek_frame_internal(s, stream_index, timestamp, flags);
2054 ret = avformat_queue_attached_pictures(s);
2059 int avformat_seek_file(AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags)
2061 if(min_ts > ts || max_ts < ts)
2063 if (stream_index < -1 || stream_index >= (int)s->nb_streams)
2064 return AVERROR(EINVAL);
2067 flags |= AVSEEK_FLAG_ANY;
2068 flags &= ~AVSEEK_FLAG_BACKWARD;
2070 if (s->iformat->read_seek2) {
2072 ff_read_frame_flush(s);
2074 if (stream_index == -1 && s->nb_streams == 1) {
2075 AVRational time_base = s->streams[0]->time_base;
2076 ts = av_rescale_q(ts, AV_TIME_BASE_Q, time_base);
2077 min_ts = av_rescale_rnd(min_ts, time_base.den,
2078 time_base.num * (int64_t)AV_TIME_BASE,
2079 AV_ROUND_UP | AV_ROUND_PASS_MINMAX);
2080 max_ts = av_rescale_rnd(max_ts, time_base.den,
2081 time_base.num * (int64_t)AV_TIME_BASE,
2082 AV_ROUND_DOWN | AV_ROUND_PASS_MINMAX);
2085 ret = s->iformat->read_seek2(s, stream_index, min_ts, ts, max_ts, flags);
2088 ret = avformat_queue_attached_pictures(s);
2092 if(s->iformat->read_timestamp){
2093 //try to seek via read_timestamp()
2096 // Fall back on old API if new is not implemented but old is.
2097 // Note the old API has somewhat different semantics.
2098 if (s->iformat->read_seek || 1) {
2099 int dir = (ts - (uint64_t)min_ts > (uint64_t)max_ts - ts ? AVSEEK_FLAG_BACKWARD : 0);
2100 int ret = av_seek_frame(s, stream_index, ts, flags | dir);
2101 if (ret<0 && ts != min_ts && max_ts != ts) {
2102 ret = av_seek_frame(s, stream_index, dir ? max_ts : min_ts, flags | dir);
2104 ret = av_seek_frame(s, stream_index, ts, flags | (dir^AVSEEK_FLAG_BACKWARD));
2109 // try some generic seek like seek_frame_generic() but with new ts semantics
2110 return -1; //unreachable
2113 /*******************************************************/
2116 * Return TRUE if the stream has accurate duration in any stream.
2118 * @return TRUE if the stream has accurate duration for at least one component.
2120 static int has_duration(AVFormatContext *ic)
2125 for(i = 0;i < ic->nb_streams; i++) {
2126 st = ic->streams[i];
2127 if (st->duration != AV_NOPTS_VALUE)
2130 if (ic->duration != AV_NOPTS_VALUE)
2136 * Estimate the stream timings from the one of each components.
2138 * Also computes the global bitrate if possible.
2140 static void update_stream_timings(AVFormatContext *ic)
2142 int64_t start_time, start_time1, start_time_text, end_time, end_time1;
2143 int64_t duration, duration1, filesize;
2148 start_time = INT64_MAX;
2149 start_time_text = INT64_MAX;
2150 end_time = INT64_MIN;
2151 duration = INT64_MIN;
2152 for(i = 0;i < ic->nb_streams; i++) {
2153 st = ic->streams[i];
2154 if (st->start_time != AV_NOPTS_VALUE && st->time_base.den) {
2155 start_time1= av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q);
2156 if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE || st->codec->codec_type == AVMEDIA_TYPE_DATA) {
2157 if (start_time1 < start_time_text)
2158 start_time_text = start_time1;
2160 start_time = FFMIN(start_time, start_time1);
2161 end_time1 = AV_NOPTS_VALUE;
2162 if (st->duration != AV_NOPTS_VALUE) {
2163 end_time1 = start_time1
2164 + av_rescale_q(st->duration, st->time_base, AV_TIME_BASE_Q);
2165 end_time = FFMAX(end_time, end_time1);
2167 for(p = NULL; (p = av_find_program_from_stream(ic, p, i)); ){
2168 if(p->start_time == AV_NOPTS_VALUE || p->start_time > start_time1)
2169 p->start_time = start_time1;
2170 if(p->end_time < end_time1)
2171 p->end_time = end_time1;
2174 if (st->duration != AV_NOPTS_VALUE) {
2175 duration1 = av_rescale_q(st->duration, st->time_base, AV_TIME_BASE_Q);
2176 duration = FFMAX(duration, duration1);
2179 if (start_time == INT64_MAX || (start_time > start_time_text && start_time - start_time_text < AV_TIME_BASE))
2180 start_time = start_time_text;
2181 else if(start_time > start_time_text)
2182 av_log(ic, AV_LOG_VERBOSE, "Ignoring outlier non primary stream starttime %f\n", start_time_text / (float)AV_TIME_BASE);
2184 if (start_time != INT64_MAX) {
2185 ic->start_time = start_time;
2186 if (end_time != INT64_MIN) {
2187 if (ic->nb_programs) {
2188 for (i=0; i<ic->nb_programs; i++) {
2189 p = ic->programs[i];
2190 if(p->start_time != AV_NOPTS_VALUE && p->end_time > p->start_time)
2191 duration = FFMAX(duration, p->end_time - p->start_time);
2194 duration = FFMAX(duration, end_time - start_time);
2197 if (duration != INT64_MIN && duration > 0 && ic->duration == AV_NOPTS_VALUE) {
2198 ic->duration = duration;
2200 if (ic->pb && (filesize = avio_size(ic->pb)) > 0 && ic->duration != AV_NOPTS_VALUE) {
2201 /* compute the bitrate */
2202 double bitrate = (double)filesize * 8.0 * AV_TIME_BASE /
2203 (double)ic->duration;
2204 if (bitrate >= 0 && bitrate <= INT_MAX)
2205 ic->bit_rate = bitrate;
2209 static void fill_all_stream_timings(AVFormatContext *ic)
2214 update_stream_timings(ic);
2215 for(i = 0;i < ic->nb_streams; i++) {
2216 st = ic->streams[i];
2217 if (st->start_time == AV_NOPTS_VALUE) {
2218 if(ic->start_time != AV_NOPTS_VALUE)
2219 st->start_time = av_rescale_q(ic->start_time, AV_TIME_BASE_Q, st->time_base);
2220 if(ic->duration != AV_NOPTS_VALUE)
2221 st->duration = av_rescale_q(ic->duration, AV_TIME_BASE_Q, st->time_base);
2226 static void estimate_timings_from_bit_rate(AVFormatContext *ic)
2228 int64_t filesize, duration;
2229 int i, show_warning = 0;
2232 /* if bit_rate is already set, we believe it */
2233 if (ic->bit_rate <= 0) {
2235 for(i=0;i<ic->nb_streams;i++) {
2236 st = ic->streams[i];
2237 if (st->codec->bit_rate > 0) {
2238 if (INT_MAX - st->codec->bit_rate < bit_rate) {
2242 bit_rate += st->codec->bit_rate;
2245 ic->bit_rate = bit_rate;
2248 /* if duration is already set, we believe it */
2249 if (ic->duration == AV_NOPTS_VALUE &&
2250 ic->bit_rate != 0) {
2251 filesize = ic->pb ? avio_size(ic->pb) : 0;
2253 for(i = 0; i < ic->nb_streams; i++) {
2254 st = ic->streams[i];
2255 if ( st->time_base.num <= INT64_MAX / ic->bit_rate
2256 && st->duration == AV_NOPTS_VALUE) {
2257 duration= av_rescale(8*filesize, st->time_base.den, ic->bit_rate*(int64_t)st->time_base.num);
2258 st->duration = duration;
2265 av_log(ic, AV_LOG_WARNING, "Estimating duration from bitrate, this may be inaccurate\n");
2268 #define DURATION_MAX_READ_SIZE 250000LL
2269 #define DURATION_MAX_RETRY 4
2271 /* only usable for MPEG-PS streams */
2272 static void estimate_timings_from_pts(AVFormatContext *ic, int64_t old_offset)
2274 AVPacket pkt1, *pkt = &pkt1;
2276 int read_size, i, ret;
2278 int64_t filesize, offset, duration;
2281 /* flush packet queue */
2282 flush_packet_queue(ic);
2284 for (i=0; i<ic->nb_streams; i++) {
2285 st = ic->streams[i];
2286 if (st->start_time == AV_NOPTS_VALUE && st->first_dts == AV_NOPTS_VALUE)
2287 av_log(st->codec, AV_LOG_WARNING, "start time is not set in estimate_timings_from_pts\n");
2290 av_parser_close(st->parser);
2295 /* estimate the end time (duration) */
2296 /* XXX: may need to support wrapping */
2297 filesize = ic->pb ? avio_size(ic->pb) : 0;
2298 end_time = AV_NOPTS_VALUE;
2300 offset = filesize - (DURATION_MAX_READ_SIZE<<retry);
2304 avio_seek(ic->pb, offset, SEEK_SET);
2307 if (read_size >= DURATION_MAX_READ_SIZE<<(FFMAX(retry-1,0)))
2311 ret = ff_read_packet(ic, pkt);
2312 } while(ret == AVERROR(EAGAIN));
2315 read_size += pkt->size;
2316 st = ic->streams[pkt->stream_index];
2317 if (pkt->pts != AV_NOPTS_VALUE &&
2318 (st->start_time != AV_NOPTS_VALUE ||
2319 st->first_dts != AV_NOPTS_VALUE)) {
2320 duration = end_time = pkt->pts;
2321 if (st->start_time != AV_NOPTS_VALUE)
2322 duration -= st->start_time;
2324 duration -= st->first_dts;
2326 if (st->duration == AV_NOPTS_VALUE || st->info->last_duration<=0 ||
2327 (st->duration < duration && FFABS(duration - st->info->last_duration) < 60LL*st->time_base.den / st->time_base.num))
2328 st->duration = duration;
2329 st->info->last_duration = duration;
2332 av_free_packet(pkt);
2334 }while( end_time==AV_NOPTS_VALUE
2335 && filesize > (DURATION_MAX_READ_SIZE<<retry)
2336 && ++retry <= DURATION_MAX_RETRY);
2338 fill_all_stream_timings(ic);
2340 avio_seek(ic->pb, old_offset, SEEK_SET);
2341 for (i=0; i<ic->nb_streams; i++) {
2343 st->cur_dts= st->first_dts;
2344 st->last_IP_pts = AV_NOPTS_VALUE;
2345 st->reference_dts = AV_NOPTS_VALUE;
2349 static void estimate_timings(AVFormatContext *ic, int64_t old_offset)
2353 /* get the file size, if possible */
2354 if (ic->iformat->flags & AVFMT_NOFILE) {
2357 file_size = avio_size(ic->pb);
2358 file_size = FFMAX(0, file_size);
2361 if ((!strcmp(ic->iformat->name, "mpeg") ||
2362 !strcmp(ic->iformat->name, "mpegts")) &&
2363 file_size && ic->pb->seekable) {
2364 /* get accurate estimate from the PTSes */
2365 estimate_timings_from_pts(ic, old_offset);
2366 ic->duration_estimation_method = AVFMT_DURATION_FROM_PTS;
2367 } else if (has_duration(ic)) {
2368 /* at least one component has timings - we use them for all
2370 fill_all_stream_timings(ic);
2371 ic->duration_estimation_method = AVFMT_DURATION_FROM_STREAM;
2373 /* less precise: use bitrate info */
2374 estimate_timings_from_bit_rate(ic);
2375 ic->duration_estimation_method = AVFMT_DURATION_FROM_BITRATE;
2377 update_stream_timings(ic);
2381 AVStream av_unused *st;
2382 for(i = 0;i < ic->nb_streams; i++) {
2383 st = ic->streams[i];
2384 av_dlog(ic, "%d: start_time: %0.3f duration: %0.3f\n", i,
2385 (double) st->start_time / AV_TIME_BASE,
2386 (double) st->duration / AV_TIME_BASE);
2388 av_dlog(ic, "stream: start_time: %0.3f duration: %0.3f bitrate=%d kb/s\n",
2389 (double) ic->start_time / AV_TIME_BASE,
2390 (double) ic->duration / AV_TIME_BASE,
2391 ic->bit_rate / 1000);
2395 static int has_codec_parameters(AVStream *st, const char **errmsg_ptr)
2397 AVCodecContext *avctx = st->codec;
2399 #define FAIL(errmsg) do { \
2401 *errmsg_ptr = errmsg; \
2405 switch (avctx->codec_type) {
2406 case AVMEDIA_TYPE_AUDIO:
2407 if (!avctx->frame_size && determinable_frame_size(avctx))
2408 FAIL("unspecified frame size");
2409 if (st->info->found_decoder >= 0 && avctx->sample_fmt == AV_SAMPLE_FMT_NONE)
2410 FAIL("unspecified sample format");
2411 if (!avctx->sample_rate)
2412 FAIL("unspecified sample rate");
2413 if (!avctx->channels)
2414 FAIL("unspecified number of channels");
2415 if (st->info->found_decoder >= 0 && !st->nb_decoded_frames && avctx->codec_id == AV_CODEC_ID_DTS)
2416 FAIL("no decodable DTS frames");
2418 case AVMEDIA_TYPE_VIDEO:
2420 FAIL("unspecified size");
2421 if (st->info->found_decoder >= 0 && avctx->pix_fmt == AV_PIX_FMT_NONE)
2422 FAIL("unspecified pixel format");
2423 if (st->codec->codec_id == AV_CODEC_ID_RV30 || st->codec->codec_id == AV_CODEC_ID_RV40)
2424 if (!st->sample_aspect_ratio.num && !st->codec->sample_aspect_ratio.num && !st->codec_info_nb_frames)
2425 FAIL("no frame in rv30/40 and no sar");
2427 case AVMEDIA_TYPE_SUBTITLE:
2428 if (avctx->codec_id == AV_CODEC_ID_HDMV_PGS_SUBTITLE && !avctx->width)
2429 FAIL("unspecified size");
2431 case AVMEDIA_TYPE_DATA:
2432 if(avctx->codec_id == AV_CODEC_ID_NONE) return 1;
2435 if (avctx->codec_id == AV_CODEC_ID_NONE)
2436 FAIL("unknown codec");
2440 /* returns 1 or 0 if or if not decoded data was returned, or a negative error */
2441 static int try_decode_frame(AVStream *st, AVPacket *avpkt, AVDictionary **options)
2443 const AVCodec *codec;
2444 int got_picture = 1, ret = 0;
2445 AVFrame *frame = avcodec_alloc_frame();
2446 AVSubtitle subtitle;
2447 AVPacket pkt = *avpkt;
2450 return AVERROR(ENOMEM);
2452 if (!avcodec_is_open(st->codec) && !st->info->found_decoder) {
2453 AVDictionary *thread_opt = NULL;
2455 codec = find_decoder(st, st->codec->codec_id);
2458 st->info->found_decoder = -1;
2463 /* force thread count to 1 since the h264 decoder will not extract SPS
2464 * and PPS to extradata during multi-threaded decoding */
2465 av_dict_set(options ? options : &thread_opt, "threads", "1", 0);
2466 ret = avcodec_open2(st->codec, codec, options ? options : &thread_opt);
2468 av_dict_free(&thread_opt);
2470 st->info->found_decoder = -1;
2473 st->info->found_decoder = 1;
2474 } else if (!st->info->found_decoder)
2475 st->info->found_decoder = 1;
2477 if (st->info->found_decoder < 0) {
2482 while ((pkt.size > 0 || (!pkt.data && got_picture)) &&
2484 (!has_codec_parameters(st, NULL) ||
2485 !has_decode_delay_been_guessed(st) ||
2486 (!st->codec_info_nb_frames && st->codec->codec->capabilities & CODEC_CAP_CHANNEL_CONF))) {
2488 avcodec_get_frame_defaults(frame);
2489 switch(st->codec->codec_type) {
2490 case AVMEDIA_TYPE_VIDEO:
2491 ret = avcodec_decode_video2(st->codec, frame,
2492 &got_picture, &pkt);
2494 case AVMEDIA_TYPE_AUDIO:
2495 ret = avcodec_decode_audio4(st->codec, frame, &got_picture, &pkt);
2497 case AVMEDIA_TYPE_SUBTITLE:
2498 ret = avcodec_decode_subtitle2(st->codec, &subtitle,
2499 &got_picture, &pkt);
2507 st->nb_decoded_frames++;
2514 if(!pkt.data && !got_picture)
2518 avcodec_free_frame(&frame);
2522 unsigned int ff_codec_get_tag(const AVCodecTag *tags, enum AVCodecID id)
2524 while (tags->id != AV_CODEC_ID_NONE) {
2532 enum AVCodecID ff_codec_get_id(const AVCodecTag *tags, unsigned int tag)
2535 for(i=0; tags[i].id != AV_CODEC_ID_NONE;i++) {
2536 if(tag == tags[i].tag)
2539 for(i=0; tags[i].id != AV_CODEC_ID_NONE; i++) {
2540 if (avpriv_toupper4(tag) == avpriv_toupper4(tags[i].tag))
2543 return AV_CODEC_ID_NONE;
2546 enum AVCodecID ff_get_pcm_codec_id(int bps, int flt, int be, int sflags)
2550 case 32: return be ? AV_CODEC_ID_PCM_F32BE : AV_CODEC_ID_PCM_F32LE;
2551 case 64: return be ? AV_CODEC_ID_PCM_F64BE : AV_CODEC_ID_PCM_F64LE;
2552 default: return AV_CODEC_ID_NONE;
2557 if (sflags & (1 << (bps - 1))) {
2559 case 1: return AV_CODEC_ID_PCM_S8;
2560 case 2: return be ? AV_CODEC_ID_PCM_S16BE : AV_CODEC_ID_PCM_S16LE;
2561 case 3: return be ? AV_CODEC_ID_PCM_S24BE : AV_CODEC_ID_PCM_S24LE;
2562 case 4: return be ? AV_CODEC_ID_PCM_S32BE : AV_CODEC_ID_PCM_S32LE;
2563 default: return AV_CODEC_ID_NONE;
2567 case 1: return AV_CODEC_ID_PCM_U8;
2568 case 2: return be ? AV_CODEC_ID_PCM_U16BE : AV_CODEC_ID_PCM_U16LE;
2569 case 3: return be ? AV_CODEC_ID_PCM_U24BE : AV_CODEC_ID_PCM_U24LE;
2570 case 4: return be ? AV_CODEC_ID_PCM_U32BE : AV_CODEC_ID_PCM_U32LE;
2571 default: return AV_CODEC_ID_NONE;
2577 unsigned int av_codec_get_tag(const AVCodecTag * const *tags, enum AVCodecID id)
2580 if (!av_codec_get_tag2(tags, id, &tag))
2585 int av_codec_get_tag2(const AVCodecTag * const *tags, enum AVCodecID id,
2589 for(i=0; tags && tags[i]; i++){
2590 const AVCodecTag *codec_tags = tags[i];
2591 while (codec_tags->id != AV_CODEC_ID_NONE) {
2592 if (codec_tags->id == id) {
2593 *tag = codec_tags->tag;
2602 enum AVCodecID av_codec_get_id(const AVCodecTag * const *tags, unsigned int tag)
2605 for(i=0; tags && tags[i]; i++){
2606 enum AVCodecID id= ff_codec_get_id(tags[i], tag);
2607 if(id!=AV_CODEC_ID_NONE) return id;
2609 return AV_CODEC_ID_NONE;
2612 static void compute_chapters_end(AVFormatContext *s)
2615 int64_t max_time = s->duration + ((s->start_time == AV_NOPTS_VALUE) ? 0 : s->start_time);
2617 for (i = 0; i < s->nb_chapters; i++)
2618 if (s->chapters[i]->end == AV_NOPTS_VALUE) {
2619 AVChapter *ch = s->chapters[i];
2620 int64_t end = max_time ? av_rescale_q(max_time, AV_TIME_BASE_Q, ch->time_base)
2623 for (j = 0; j < s->nb_chapters; j++) {
2624 AVChapter *ch1 = s->chapters[j];
2625 int64_t next_start = av_rescale_q(ch1->start, ch1->time_base, ch->time_base);
2626 if (j != i && next_start > ch->start && next_start < end)
2629 ch->end = (end == INT64_MAX) ? ch->start : end;
2633 static int get_std_framerate(int i){
2634 if(i<60*12) return (i+1)*1001;
2635 else return ((const int[]){24,30,60,12,15,48})[i-60*12]*1000*12;
2639 * Is the time base unreliable.
2640 * This is a heuristic to balance between quick acceptance of the values in
2641 * the headers vs. some extra checks.
2642 * Old DivX and Xvid often have nonsense timebases like 1fps or 2fps.
2643 * MPEG-2 commonly misuses field repeat flags to store different framerates.
2644 * And there are "variable" fps files this needs to detect as well.
2646 static int tb_unreliable(AVCodecContext *c){
2647 if( c->time_base.den >= 101L*c->time_base.num
2648 || c->time_base.den < 5L*c->time_base.num
2649 /* || c->codec_tag == AV_RL32("DIVX")
2650 || c->codec_tag == AV_RL32("XVID")*/
2651 || c->codec_tag == AV_RL32("mp4v")
2652 || c->codec_id == AV_CODEC_ID_MPEG2VIDEO
2653 || c->codec_id == AV_CODEC_ID_H264
2659 #if FF_API_FORMAT_PARAMETERS
2660 int av_find_stream_info(AVFormatContext *ic)
2662 return avformat_find_stream_info(ic, NULL);
2666 int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
2668 int i, count, ret = 0, j;
2671 AVPacket pkt1, *pkt;
2672 int64_t old_offset = avio_tell(ic->pb);
2673 int orig_nb_streams = ic->nb_streams; // new streams might appear, no options for those
2674 int flush_codecs = ic->probesize > 0;
2677 av_log(ic, AV_LOG_DEBUG, "File position before avformat_find_stream_info() is %"PRId64"\n", avio_tell(ic->pb));
2679 for(i=0;i<ic->nb_streams;i++) {
2680 const AVCodec *codec;
2681 AVDictionary *thread_opt = NULL;
2682 st = ic->streams[i];
2684 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2685 st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2686 /* if(!st->time_base.num)
2688 if(!st->codec->time_base.num)
2689 st->codec->time_base= st->time_base;
2691 //only for the split stuff
2692 if (!st->parser && !(ic->flags & AVFMT_FLAG_NOPARSE)) {
2693 st->parser = av_parser_init(st->codec->codec_id);
2695 if(st->need_parsing == AVSTREAM_PARSE_HEADERS){
2696 st->parser->flags |= PARSER_FLAG_COMPLETE_FRAMES;
2697 } else if(st->need_parsing == AVSTREAM_PARSE_FULL_RAW) {
2698 st->parser->flags |= PARSER_FLAG_USE_CODEC_TS;
2700 } else if (st->need_parsing) {
2701 av_log(ic, AV_LOG_VERBOSE, "parser not found for codec "
2702 "%s, packets or times may be invalid.\n",
2703 avcodec_get_name(st->codec->codec_id));
2706 codec = find_decoder(st, st->codec->codec_id);
2708 /* force thread count to 1 since the h264 decoder will not extract SPS
2709 * and PPS to extradata during multi-threaded decoding */
2710 av_dict_set(options ? &options[i] : &thread_opt, "threads", "1", 0);
2712 /* Ensure that subtitle_header is properly set. */
2713 if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE
2714 && codec && !st->codec->codec)
2715 avcodec_open2(st->codec, codec, options ? &options[i]
2718 //try to just open decoders, in case this is enough to get parameters
2719 if (!has_codec_parameters(st, NULL) && st->request_probe <= 0) {
2720 if (codec && !st->codec->codec)
2721 avcodec_open2(st->codec, codec, options ? &options[i]
2725 av_dict_free(&thread_opt);
2728 for (i=0; i<ic->nb_streams; i++) {
2729 #if FF_API_R_FRAME_RATE
2730 ic->streams[i]->info->last_dts = AV_NOPTS_VALUE;
2732 ic->streams[i]->info->fps_first_dts = AV_NOPTS_VALUE;
2733 ic->streams[i]->info->fps_last_dts = AV_NOPTS_VALUE;
2739 if (ff_check_interrupt(&ic->interrupt_callback)){
2741 av_log(ic, AV_LOG_DEBUG, "interrupted\n");
2745 /* check if one codec still needs to be handled */
2746 for(i=0;i<ic->nb_streams;i++) {
2747 int fps_analyze_framecount = 20;
2749 st = ic->streams[i];
2750 if (!has_codec_parameters(st, NULL))
2752 /* if the timebase is coarse (like the usual millisecond precision
2753 of mkv), we need to analyze more frames to reliably arrive at
2755 if (av_q2d(st->time_base) > 0.0005)
2756 fps_analyze_framecount *= 2;
2757 if (ic->fps_probe_size >= 0)
2758 fps_analyze_framecount = ic->fps_probe_size;
2759 if (st->disposition & AV_DISPOSITION_ATTACHED_PIC)
2760 fps_analyze_framecount = 0;
2761 /* variable fps and no guess at the real fps */
2762 if( tb_unreliable(st->codec) && !(st->r_frame_rate.num && st->avg_frame_rate.num)
2763 && st->info->duration_count < fps_analyze_framecount
2764 && st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2766 if(st->parser && st->parser->parser->split && !st->codec->extradata)
2768 if (st->first_dts == AV_NOPTS_VALUE &&
2769 (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2770 st->codec->codec_type == AVMEDIA_TYPE_AUDIO))
2773 if (i == ic->nb_streams) {
2774 /* NOTE: if the format has no header, then we need to read
2775 some packets to get most of the streams, so we cannot
2777 if (!(ic->ctx_flags & AVFMTCTX_NOHEADER)) {
2778 /* if we found the info for all the codecs, we can stop */
2780 av_log(ic, AV_LOG_DEBUG, "All info found\n");
2785 /* we did not get all the codec info, but we read too much data */
2786 if (read_size >= ic->probesize) {
2788 av_log(ic, AV_LOG_DEBUG, "Probe buffer size limit of %d bytes reached\n", ic->probesize);
2789 for (i = 0; i < ic->nb_streams; i++)
2790 if (!ic->streams[i]->r_frame_rate.num &&
2791 ic->streams[i]->info->duration_count <= 1 &&
2792 strcmp(ic->iformat->name, "image2"))
2793 av_log(ic, AV_LOG_WARNING,
2794 "Stream #%d: not enough frames to estimate rate; "
2795 "consider increasing probesize\n", i);
2799 /* NOTE: a new stream can be added there if no header in file
2800 (AVFMTCTX_NOHEADER) */
2801 ret = read_frame_internal(ic, &pkt1);
2802 if (ret == AVERROR(EAGAIN))
2810 if (ic->flags & AVFMT_FLAG_NOBUFFER)
2811 free_packet_buffer(&ic->packet_buffer, &ic->packet_buffer_end);
2813 pkt = add_to_pktbuf(&ic->packet_buffer, &pkt1,
2814 &ic->packet_buffer_end);
2816 ret = AVERROR(ENOMEM);
2817 goto find_stream_info_err;
2819 if ((ret = av_dup_packet(pkt)) < 0)
2820 goto find_stream_info_err;
2823 read_size += pkt->size;
2825 st = ic->streams[pkt->stream_index];
2826 if (pkt->dts != AV_NOPTS_VALUE && st->codec_info_nb_frames > 1) {
2827 /* check for non-increasing dts */
2828 if (st->info->fps_last_dts != AV_NOPTS_VALUE &&
2829 st->info->fps_last_dts >= pkt->dts) {
2830 av_log(ic, AV_LOG_DEBUG, "Non-increasing DTS in stream %d: "
2831 "packet %d with DTS %"PRId64", packet %d with DTS "
2832 "%"PRId64"\n", st->index, st->info->fps_last_dts_idx,
2833 st->info->fps_last_dts, st->codec_info_nb_frames, pkt->dts);
2834 st->info->fps_first_dts = st->info->fps_last_dts = AV_NOPTS_VALUE;
2836 /* check for a discontinuity in dts - if the difference in dts
2837 * is more than 1000 times the average packet duration in the sequence,
2838 * we treat it as a discontinuity */
2839 if (st->info->fps_last_dts != AV_NOPTS_VALUE &&
2840 st->info->fps_last_dts_idx > st->info->fps_first_dts_idx &&
2841 (pkt->dts - st->info->fps_last_dts) / 1000 >
2842 (st->info->fps_last_dts - st->info->fps_first_dts) / (st->info->fps_last_dts_idx - st->info->fps_first_dts_idx)) {
2843 av_log(ic, AV_LOG_WARNING, "DTS discontinuity in stream %d: "
2844 "packet %d with DTS %"PRId64", packet %d with DTS "
2845 "%"PRId64"\n", st->index, st->info->fps_last_dts_idx,
2846 st->info->fps_last_dts, st->codec_info_nb_frames, pkt->dts);
2847 st->info->fps_first_dts = st->info->fps_last_dts = AV_NOPTS_VALUE;
2850 /* update stored dts values */
2851 if (st->info->fps_first_dts == AV_NOPTS_VALUE) {
2852 st->info->fps_first_dts = pkt->dts;
2853 st->info->fps_first_dts_idx = st->codec_info_nb_frames;
2855 st->info->fps_last_dts = pkt->dts;
2856 st->info->fps_last_dts_idx = st->codec_info_nb_frames;
2858 if (st->codec_info_nb_frames>1) {
2860 if (st->time_base.den > 0)
2861 t = av_rescale_q(st->info->codec_info_duration, st->time_base, AV_TIME_BASE_Q);
2862 if (st->avg_frame_rate.num > 0)
2863 t = FFMAX(t, av_rescale_q(st->codec_info_nb_frames, av_inv_q(st->avg_frame_rate), AV_TIME_BASE_Q));
2866 && st->codec_info_nb_frames>30
2867 && st->info->fps_first_dts != AV_NOPTS_VALUE
2868 && st->info->fps_last_dts != AV_NOPTS_VALUE)
2869 t = FFMAX(t, av_rescale_q(st->info->fps_last_dts - st->info->fps_first_dts, st->time_base, AV_TIME_BASE_Q));
2871 if (t >= ic->max_analyze_duration) {
2872 av_log(ic, AV_LOG_VERBOSE, "max_analyze_duration %d reached at %"PRId64" microseconds\n", ic->max_analyze_duration, t);
2875 if (pkt->duration) {
2876 st->info->codec_info_duration += pkt->duration;
2877 st->info->codec_info_duration_fields += st->parser && st->need_parsing && st->codec->ticks_per_frame==2 ? st->parser->repeat_pict + 1 : 2;
2880 #if FF_API_R_FRAME_RATE
2882 int64_t last = st->info->last_dts;
2884 if( pkt->dts != AV_NOPTS_VALUE && last != AV_NOPTS_VALUE && pkt->dts > last
2885 && pkt->dts - (uint64_t)last < INT64_MAX){
2886 double dts= (is_relative(pkt->dts) ? pkt->dts - RELATIVE_TS_BASE : pkt->dts) * av_q2d(st->time_base);
2887 int64_t duration= pkt->dts - last;
2889 if (!st->info->duration_error)
2890 st->info->duration_error = av_mallocz(sizeof(st->info->duration_error[0])*2);
2891 if (!st->info->duration_error)
2892 return AVERROR(ENOMEM);
2894 // if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2895 // av_log(NULL, AV_LOG_ERROR, "%f\n", dts);
2896 for (i=0; i<MAX_STD_TIMEBASES; i++) {
2897 int framerate= get_std_framerate(i);
2898 double sdts= dts*framerate/(1001*12);
2900 int64_t ticks= llrint(sdts+j*0.5);
2901 double error= sdts - ticks + j*0.5;
2902 st->info->duration_error[j][0][i] += error;
2903 st->info->duration_error[j][1][i] += error*error;
2906 st->info->duration_count++;
2907 // ignore the first 4 values, they might have some random jitter
2908 if (st->info->duration_count > 3 && is_relative(pkt->dts) == is_relative(last))
2909 st->info->duration_gcd = av_gcd(st->info->duration_gcd, duration);
2911 if (pkt->dts != AV_NOPTS_VALUE)
2912 st->info->last_dts = pkt->dts;
2915 if(st->parser && st->parser->parser->split && !st->codec->extradata){
2916 int i= st->parser->parser->split(st->codec, pkt->data, pkt->size);
2917 if (i > 0 && i < FF_MAX_EXTRADATA_SIZE) {
2918 st->codec->extradata_size= i;
2919 st->codec->extradata= av_malloc(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
2920 if (!st->codec->extradata)
2921 return AVERROR(ENOMEM);
2922 memcpy(st->codec->extradata, pkt->data, st->codec->extradata_size);
2923 memset(st->codec->extradata + i, 0, FF_INPUT_BUFFER_PADDING_SIZE);
2927 /* if still no information, we try to open the codec and to
2928 decompress the frame. We try to avoid that in most cases as
2929 it takes longer and uses more memory. For MPEG-4, we need to
2930 decompress for QuickTime.
2932 If CODEC_CAP_CHANNEL_CONF is set this will force decoding of at
2933 least one frame of codec data, this makes sure the codec initializes
2934 the channel configuration and does not only trust the values from the container.
2936 try_decode_frame(st, pkt, (options && i < orig_nb_streams ) ? &options[i] : NULL);
2938 st->codec_info_nb_frames++;
2943 AVPacket empty_pkt = { 0 };
2945 av_init_packet(&empty_pkt);
2947 for(i=0;i<ic->nb_streams;i++) {
2949 st = ic->streams[i];
2951 /* flush the decoders */
2952 if (st->info->found_decoder == 1) {
2954 err = try_decode_frame(st, &empty_pkt,
2955 (options && i < orig_nb_streams) ?
2956 &options[i] : NULL);
2957 } while (err > 0 && !has_codec_parameters(st, NULL));
2960 av_log(ic, AV_LOG_INFO,
2961 "decoding for stream %d failed\n", st->index);
2967 // close codecs which were opened in try_decode_frame()
2968 for(i=0;i<ic->nb_streams;i++) {
2969 st = ic->streams[i];
2970 avcodec_close(st->codec);
2972 for(i=0;i<ic->nb_streams;i++) {
2973 st = ic->streams[i];
2974 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2975 if(st->codec->codec_id == AV_CODEC_ID_RAWVIDEO && !st->codec->codec_tag && !st->codec->bits_per_coded_sample){
2976 uint32_t tag= avcodec_pix_fmt_to_codec_tag(st->codec->pix_fmt);
2977 if (avpriv_find_pix_fmt(ff_raw_pix_fmt_tags, tag) == st->codec->pix_fmt)
2978 st->codec->codec_tag= tag;
2981 /* estimate average framerate if not set by demuxer */
2982 if (st->info->codec_info_duration_fields && !st->avg_frame_rate.num && st->info->codec_info_duration) {
2984 double best_error = 0.01;
2986 if (st->info->codec_info_duration >= INT64_MAX / st->time_base.num / 2||
2987 st->info->codec_info_duration_fields >= INT64_MAX / st->time_base.den ||
2988 st->info->codec_info_duration < 0)
2990 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
2991 st->info->codec_info_duration_fields*(int64_t)st->time_base.den,
2992 st->info->codec_info_duration*2*(int64_t)st->time_base.num, 60000);
2994 /* round guessed framerate to a "standard" framerate if it's
2995 * within 1% of the original estimate*/
2996 for (j = 1; j < MAX_STD_TIMEBASES; j++) {
2997 AVRational std_fps = { get_std_framerate(j), 12*1001 };
2998 double error = fabs(av_q2d(st->avg_frame_rate) / av_q2d(std_fps) - 1);
3000 if (error < best_error) {
3002 best_fps = std_fps.num;
3006 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
3007 best_fps, 12*1001, INT_MAX);
3010 // the check for tb_unreliable() is not completely correct, since this is not about handling
3011 // a unreliable/inexact time base, but a time base that is finer than necessary, as e.g.
3012 // ipmovie.c produces.
3013 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)
3014 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);
3015 if (st->info->duration_count>1 && !st->r_frame_rate.num
3016 && tb_unreliable(st->codec)) {
3018 double best_error= 0.01;
3020 for (j=0; j<MAX_STD_TIMEBASES; j++) {
3023 if(st->info->codec_info_duration && st->info->codec_info_duration*av_q2d(st->time_base) < (1001*12.0)/get_std_framerate(j))
3025 if(!st->info->codec_info_duration && 1.0 < (1001*12.0)/get_std_framerate(j))
3028 int n= st->info->duration_count;
3029 double a= st->info->duration_error[k][0][j] / n;
3030 double error= st->info->duration_error[k][1][j]/n - a*a;
3032 if(error < best_error && best_error> 0.000000001){
3034 num = get_std_framerate(j);
3037 av_log(NULL, AV_LOG_DEBUG, "rfps: %f %f\n", get_std_framerate(j) / 12.0/1001, error);
3040 // do not increase frame rate by more than 1 % in order to match a standard rate.
3041 if (num && (!st->r_frame_rate.num || (double)num/(12*1001) < 1.01 * av_q2d(st->r_frame_rate)))
3042 av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den, num, 12*1001, INT_MAX);
3045 if (!st->r_frame_rate.num){
3046 if( st->codec->time_base.den * (int64_t)st->time_base.num
3047 <= st->codec->time_base.num * st->codec->ticks_per_frame * (int64_t)st->time_base.den){
3048 st->r_frame_rate.num = st->codec->time_base.den;
3049 st->r_frame_rate.den = st->codec->time_base.num * st->codec->ticks_per_frame;
3051 st->r_frame_rate.num = st->time_base.den;
3052 st->r_frame_rate.den = st->time_base.num;
3055 }else if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3056 if(!st->codec->bits_per_coded_sample)
3057 st->codec->bits_per_coded_sample= av_get_bits_per_sample(st->codec->codec_id);
3058 // set stream disposition based on audio service type
3059 switch (st->codec->audio_service_type) {
3060 case AV_AUDIO_SERVICE_TYPE_EFFECTS:
3061 st->disposition = AV_DISPOSITION_CLEAN_EFFECTS; break;
3062 case AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED:
3063 st->disposition = AV_DISPOSITION_VISUAL_IMPAIRED; break;
3064 case AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED:
3065 st->disposition = AV_DISPOSITION_HEARING_IMPAIRED; break;
3066 case AV_AUDIO_SERVICE_TYPE_COMMENTARY:
3067 st->disposition = AV_DISPOSITION_COMMENT; break;
3068 case AV_AUDIO_SERVICE_TYPE_KARAOKE:
3069 st->disposition = AV_DISPOSITION_KARAOKE; break;
3075 estimate_timings(ic, old_offset);
3077 if (ret >= 0 && ic->nb_streams)
3078 ret = -1; /* we could not have all the codec parameters before EOF */
3079 for(i=0;i<ic->nb_streams;i++) {
3081 st = ic->streams[i];
3082 if (!has_codec_parameters(st, &errmsg)) {
3084 avcodec_string(buf, sizeof(buf), st->codec, 0);
3085 av_log(ic, AV_LOG_WARNING,
3086 "Could not find codec parameters for stream %d (%s): %s\n"
3087 "Consider increasing the value for the 'analyzeduration' and 'probesize' options\n",
3094 compute_chapters_end(ic);
3096 find_stream_info_err:
3097 for (i=0; i < ic->nb_streams; i++) {
3098 st = ic->streams[i];
3099 if (ic->streams[i]->codec && ic->streams[i]->codec->codec_type != AVMEDIA_TYPE_AUDIO)
3100 ic->streams[i]->codec->thread_count = 0;
3102 av_freep(&st->info->duration_error);
3103 av_freep(&ic->streams[i]->info);
3106 av_log(ic, AV_LOG_DEBUG, "File position after avformat_find_stream_info() is %"PRId64"\n", avio_tell(ic->pb));
3110 AVProgram *av_find_program_from_stream(AVFormatContext *ic, AVProgram *last, int s)
3114 for (i = 0; i < ic->nb_programs; i++) {
3115 if (ic->programs[i] == last) {
3119 for (j = 0; j < ic->programs[i]->nb_stream_indexes; j++)
3120 if (ic->programs[i]->stream_index[j] == s)
3121 return ic->programs[i];
3127 int av_find_best_stream(AVFormatContext *ic,
3128 enum AVMediaType type,
3129 int wanted_stream_nb,
3131 AVCodec **decoder_ret,
3134 int i, nb_streams = ic->nb_streams;
3135 int ret = AVERROR_STREAM_NOT_FOUND, best_count = -1, best_bitrate = -1, best_multiframe = -1, count, bitrate, multiframe;
3136 unsigned *program = NULL;
3137 AVCodec *decoder = NULL, *best_decoder = NULL;
3139 if (related_stream >= 0 && wanted_stream_nb < 0) {
3140 AVProgram *p = av_find_program_from_stream(ic, NULL, related_stream);
3142 program = p->stream_index;
3143 nb_streams = p->nb_stream_indexes;
3146 for (i = 0; i < nb_streams; i++) {
3147 int real_stream_index = program ? program[i] : i;
3148 AVStream *st = ic->streams[real_stream_index];
3149 AVCodecContext *avctx = st->codec;
3150 if (avctx->codec_type != type)
3152 if (wanted_stream_nb >= 0 && real_stream_index != wanted_stream_nb)
3154 if (st->disposition & (AV_DISPOSITION_HEARING_IMPAIRED|AV_DISPOSITION_VISUAL_IMPAIRED))
3157 decoder = find_decoder(st, st->codec->codec_id);
3160 ret = AVERROR_DECODER_NOT_FOUND;
3164 count = st->codec_info_nb_frames;
3165 bitrate = avctx->bit_rate;
3166 multiframe = FFMIN(5, count);
3167 if ((best_multiframe > multiframe) ||
3168 (best_multiframe == multiframe && best_bitrate > bitrate) ||
3169 (best_multiframe == multiframe && best_bitrate == bitrate && best_count >= count))
3172 best_bitrate = bitrate;
3173 best_multiframe = multiframe;
3174 ret = real_stream_index;
3175 best_decoder = decoder;
3176 if (program && i == nb_streams - 1 && ret < 0) {
3178 nb_streams = ic->nb_streams;
3179 i = 0; /* no related stream found, try again with everything */
3183 *decoder_ret = best_decoder;
3187 /*******************************************************/
3189 int av_read_play(AVFormatContext *s)
3191 if (s->iformat->read_play)
3192 return s->iformat->read_play(s);
3194 return avio_pause(s->pb, 0);
3195 return AVERROR(ENOSYS);
3198 int av_read_pause(AVFormatContext *s)
3200 if (s->iformat->read_pause)
3201 return s->iformat->read_pause(s);
3203 return avio_pause(s->pb, 1);
3204 return AVERROR(ENOSYS);
3207 void ff_free_stream(AVFormatContext *s, AVStream *st){
3208 av_assert0(s->nb_streams>0);
3209 av_assert0(s->streams[ s->nb_streams-1 ] == st);
3212 av_parser_close(st->parser);
3214 if (st->attached_pic.data)
3215 av_free_packet(&st->attached_pic);
3216 av_dict_free(&st->metadata);
3217 av_freep(&st->probe_data.buf);
3218 av_freep(&st->index_entries);
3219 av_freep(&st->codec->extradata);
3220 av_freep(&st->codec->subtitle_header);
3221 av_freep(&st->codec);
3222 av_freep(&st->priv_data);
3224 av_freep(&st->info->duration_error);
3225 av_freep(&st->info);
3226 av_freep(&s->streams[ --s->nb_streams ]);
3229 void avformat_free_context(AVFormatContext *s)
3237 if (s->iformat && s->iformat->priv_class && s->priv_data)
3238 av_opt_free(s->priv_data);
3240 for(i=s->nb_streams-1; i>=0; i--) {
3241 ff_free_stream(s, s->streams[i]);
3243 for(i=s->nb_programs-1; i>=0; i--) {
3244 av_dict_free(&s->programs[i]->metadata);
3245 av_freep(&s->programs[i]->stream_index);
3246 av_freep(&s->programs[i]);
3248 av_freep(&s->programs);
3249 av_freep(&s->priv_data);
3250 while(s->nb_chapters--) {
3251 av_dict_free(&s->chapters[s->nb_chapters]->metadata);
3252 av_freep(&s->chapters[s->nb_chapters]);
3254 av_freep(&s->chapters);
3255 av_dict_free(&s->metadata);
3256 av_freep(&s->streams);
3260 #if FF_API_CLOSE_INPUT_FILE
3261 void av_close_input_file(AVFormatContext *s)
3263 avformat_close_input(&s);
3267 void avformat_close_input(AVFormatContext **ps)
3278 if ((s->iformat && s->iformat->flags & AVFMT_NOFILE) ||
3279 (s->flags & AVFMT_FLAG_CUSTOM_IO))
3282 flush_packet_queue(s);
3285 if (s->iformat->read_close)
3286 s->iformat->read_close(s);
3289 avformat_free_context(s);
3296 #if FF_API_NEW_STREAM
3297 AVStream *av_new_stream(AVFormatContext *s, int id)
3299 AVStream *st = avformat_new_stream(s, NULL);
3306 AVStream *avformat_new_stream(AVFormatContext *s, const AVCodec *c)
3312 if (s->nb_streams >= INT_MAX/sizeof(*streams))
3314 streams = av_realloc_array(s->streams, s->nb_streams + 1, sizeof(*streams));
3317 s->streams = streams;
3319 st = av_mallocz(sizeof(AVStream));
3322 if (!(st->info = av_mallocz(sizeof(*st->info)))) {
3326 st->info->last_dts = AV_NOPTS_VALUE;
3328 st->codec = avcodec_alloc_context3(c);
3330 /* no default bitrate if decoding */
3331 st->codec->bit_rate = 0;
3333 st->index = s->nb_streams;
3334 st->start_time = AV_NOPTS_VALUE;
3335 st->duration = AV_NOPTS_VALUE;
3336 /* we set the current DTS to 0 so that formats without any timestamps
3337 but durations get some timestamps, formats with some unknown
3338 timestamps have their first few packets buffered and the
3339 timestamps corrected before they are returned to the user */
3340 st->cur_dts = s->iformat ? RELATIVE_TS_BASE : 0;
3341 st->first_dts = AV_NOPTS_VALUE;
3342 st->probe_packets = MAX_PROBE_PACKETS;
3343 st->pts_wrap_reference = AV_NOPTS_VALUE;
3344 st->pts_wrap_behavior = AV_PTS_WRAP_IGNORE;
3346 /* default pts setting is MPEG-like */
3347 avpriv_set_pts_info(st, 33, 1, 90000);
3348 st->last_IP_pts = AV_NOPTS_VALUE;
3349 for(i=0; i<MAX_REORDER_DELAY+1; i++)
3350 st->pts_buffer[i]= AV_NOPTS_VALUE;
3351 st->reference_dts = AV_NOPTS_VALUE;
3353 st->sample_aspect_ratio = (AVRational){0,1};
3355 #if FF_API_R_FRAME_RATE
3356 st->info->last_dts = AV_NOPTS_VALUE;
3358 st->info->fps_first_dts = AV_NOPTS_VALUE;
3359 st->info->fps_last_dts = AV_NOPTS_VALUE;
3361 s->streams[s->nb_streams++] = st;
3365 AVProgram *av_new_program(AVFormatContext *ac, int id)
3367 AVProgram *program=NULL;
3370 av_dlog(ac, "new_program: id=0x%04x\n", id);
3372 for(i=0; i<ac->nb_programs; i++)
3373 if(ac->programs[i]->id == id)
3374 program = ac->programs[i];
3377 program = av_mallocz(sizeof(AVProgram));
3380 dynarray_add(&ac->programs, &ac->nb_programs, program);
3381 program->discard = AVDISCARD_NONE;
3384 program->pts_wrap_reference = AV_NOPTS_VALUE;
3385 program->pts_wrap_behavior = AV_PTS_WRAP_IGNORE;
3387 program->start_time =
3388 program->end_time = AV_NOPTS_VALUE;
3393 AVChapter *avpriv_new_chapter(AVFormatContext *s, int id, AVRational time_base, int64_t start, int64_t end, const char *title)
3395 AVChapter *chapter = NULL;
3398 for(i=0; i<s->nb_chapters; i++)
3399 if(s->chapters[i]->id == id)
3400 chapter = s->chapters[i];
3403 chapter= av_mallocz(sizeof(AVChapter));
3406 dynarray_add(&s->chapters, &s->nb_chapters, chapter);
3408 av_dict_set(&chapter->metadata, "title", title, 0);
3410 chapter->time_base= time_base;
3411 chapter->start = start;
3417 void ff_program_add_stream_index(AVFormatContext *ac, int progid, unsigned int idx)
3420 AVProgram *program=NULL;
3423 if (idx >= ac->nb_streams) {
3424 av_log(ac, AV_LOG_ERROR, "stream index %d is not valid\n", idx);
3428 for(i=0; i<ac->nb_programs; i++){
3429 if(ac->programs[i]->id != progid)
3431 program = ac->programs[i];
3432 for(j=0; j<program->nb_stream_indexes; j++)
3433 if(program->stream_index[j] == idx)
3436 tmp = av_realloc_array(program->stream_index, program->nb_stream_indexes+1, sizeof(unsigned int));
3439 program->stream_index = tmp;
3440 program->stream_index[program->nb_stream_indexes++] = idx;
3445 static void print_fps(double d, const char *postfix){
3446 uint64_t v= lrintf(d*100);
3447 if (v% 100 ) av_log(NULL, AV_LOG_INFO, ", %3.2f %s", d, postfix);
3448 else if(v%(100*1000)) av_log(NULL, AV_LOG_INFO, ", %1.0f %s", d, postfix);
3449 else av_log(NULL, AV_LOG_INFO, ", %1.0fk %s", d/1000, postfix);
3452 static void dump_metadata(void *ctx, AVDictionary *m, const char *indent)
3454 if(m && !(av_dict_count(m) == 1 && av_dict_get(m, "language", NULL, 0))){
3455 AVDictionaryEntry *tag=NULL;
3457 av_log(ctx, AV_LOG_INFO, "%sMetadata:\n", indent);
3458 while((tag=av_dict_get(m, "", tag, AV_DICT_IGNORE_SUFFIX))) {
3459 if(strcmp("language", tag->key)){
3460 const char *p = tag->value;
3461 av_log(ctx, AV_LOG_INFO, "%s %-16s: ", indent, tag->key);
3464 size_t len = strcspn(p, "\x8\xa\xb\xc\xd");
3465 av_strlcpy(tmp, p, FFMIN(sizeof(tmp), len+1));
3466 av_log(ctx, AV_LOG_INFO, "%s", tmp);
3468 if (*p == 0xd) av_log(ctx, AV_LOG_INFO, " ");
3469 if (*p == 0xa) av_log(ctx, AV_LOG_INFO, "\n%s %-16s: ", indent, "");
3472 av_log(ctx, AV_LOG_INFO, "\n");
3478 /* "user interface" functions */
3479 static void dump_stream_format(AVFormatContext *ic, int i, int index, int is_output)
3482 int flags = (is_output ? ic->oformat->flags : ic->iformat->flags);
3483 AVStream *st = ic->streams[i];
3484 int g = av_gcd(st->time_base.num, st->time_base.den);
3485 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL, 0);
3486 avcodec_string(buf, sizeof(buf), st->codec, is_output);
3487 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d", index, i);
3488 /* the pid is an important information, so we display it */
3489 /* XXX: add a generic system */
3490 if (flags & AVFMT_SHOW_IDS)
3491 av_log(NULL, AV_LOG_INFO, "[0x%x]", st->id);
3493 av_log(NULL, AV_LOG_INFO, "(%s)", lang->value);
3494 av_log(NULL, AV_LOG_DEBUG, ", %d, %d/%d", st->codec_info_nb_frames, st->time_base.num/g, st->time_base.den/g);
3495 av_log(NULL, AV_LOG_INFO, ": %s", buf);
3496 if (st->sample_aspect_ratio.num && // default
3497 av_cmp_q(st->sample_aspect_ratio, st->codec->sample_aspect_ratio)) {
3498 AVRational display_aspect_ratio;
3499 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
3500 st->codec->width*st->sample_aspect_ratio.num,
3501 st->codec->height*st->sample_aspect_ratio.den,
3503 av_log(NULL, AV_LOG_INFO, ", SAR %d:%d DAR %d:%d",
3504 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
3505 display_aspect_ratio.num, display_aspect_ratio.den);
3507 if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO){
3508 if(st->avg_frame_rate.den && st->avg_frame_rate.num)
3509 print_fps(av_q2d(st->avg_frame_rate), "fps");
3510 #if FF_API_R_FRAME_RATE
3511 if(st->r_frame_rate.den && st->r_frame_rate.num)
3512 print_fps(av_q2d(st->r_frame_rate), "tbr");
3514 if(st->time_base.den && st->time_base.num)
3515 print_fps(1/av_q2d(st->time_base), "tbn");
3516 if(st->codec->time_base.den && st->codec->time_base.num)
3517 print_fps(1/av_q2d(st->codec->time_base), "tbc");
3519 if (st->disposition & AV_DISPOSITION_DEFAULT)
3520 av_log(NULL, AV_LOG_INFO, " (default)");
3521 if (st->disposition & AV_DISPOSITION_DUB)
3522 av_log(NULL, AV_LOG_INFO, " (dub)");
3523 if (st->disposition & AV_DISPOSITION_ORIGINAL)
3524 av_log(NULL, AV_LOG_INFO, " (original)");
3525 if (st->disposition & AV_DISPOSITION_COMMENT)
3526 av_log(NULL, AV_LOG_INFO, " (comment)");
3527 if (st->disposition & AV_DISPOSITION_LYRICS)
3528 av_log(NULL, AV_LOG_INFO, " (lyrics)");
3529 if (st->disposition & AV_DISPOSITION_KARAOKE)
3530 av_log(NULL, AV_LOG_INFO, " (karaoke)");
3531 if (st->disposition & AV_DISPOSITION_FORCED)
3532 av_log(NULL, AV_LOG_INFO, " (forced)");
3533 if (st->disposition & AV_DISPOSITION_HEARING_IMPAIRED)
3534 av_log(NULL, AV_LOG_INFO, " (hearing impaired)");
3535 if (st->disposition & AV_DISPOSITION_VISUAL_IMPAIRED)
3536 av_log(NULL, AV_LOG_INFO, " (visual impaired)");
3537 if (st->disposition & AV_DISPOSITION_CLEAN_EFFECTS)
3538 av_log(NULL, AV_LOG_INFO, " (clean effects)");
3539 av_log(NULL, AV_LOG_INFO, "\n");
3540 dump_metadata(NULL, st->metadata, " ");
3543 void av_dump_format(AVFormatContext *ic,
3549 uint8_t *printed = ic->nb_streams ? av_mallocz(ic->nb_streams) : NULL;
3550 if (ic->nb_streams && !printed)
3553 av_log(NULL, AV_LOG_INFO, "%s #%d, %s, %s '%s':\n",
3554 is_output ? "Output" : "Input",
3556 is_output ? ic->oformat->name : ic->iformat->name,
3557 is_output ? "to" : "from", url);
3558 dump_metadata(NULL, ic->metadata, " ");
3560 av_log(NULL, AV_LOG_INFO, " Duration: ");
3561 if (ic->duration != AV_NOPTS_VALUE) {
3562 int hours, mins, secs, us;
3563 int64_t duration = ic->duration + 5000;
3564 secs = duration / AV_TIME_BASE;
3565 us = duration % AV_TIME_BASE;
3570 av_log(NULL, AV_LOG_INFO, "%02d:%02d:%02d.%02d", hours, mins, secs,
3571 (100 * us) / AV_TIME_BASE);
3573 av_log(NULL, AV_LOG_INFO, "N/A");
3575 if (ic->start_time != AV_NOPTS_VALUE) {
3577 av_log(NULL, AV_LOG_INFO, ", start: ");
3578 secs = ic->start_time / AV_TIME_BASE;
3579 us = abs(ic->start_time % AV_TIME_BASE);
3580 av_log(NULL, AV_LOG_INFO, "%d.%06d",
3581 secs, (int)av_rescale(us, 1000000, AV_TIME_BASE));
3583 av_log(NULL, AV_LOG_INFO, ", bitrate: ");
3585 av_log(NULL, AV_LOG_INFO,"%d kb/s", ic->bit_rate / 1000);
3587 av_log(NULL, AV_LOG_INFO, "N/A");
3589 av_log(NULL, AV_LOG_INFO, "\n");
3591 for (i = 0; i < ic->nb_chapters; i++) {
3592 AVChapter *ch = ic->chapters[i];
3593 av_log(NULL, AV_LOG_INFO, " Chapter #%d.%d: ", index, i);
3594 av_log(NULL, AV_LOG_INFO, "start %f, ", ch->start * av_q2d(ch->time_base));
3595 av_log(NULL, AV_LOG_INFO, "end %f\n", ch->end * av_q2d(ch->time_base));
3597 dump_metadata(NULL, ch->metadata, " ");
3599 if(ic->nb_programs) {
3600 int j, k, total = 0;
3601 for(j=0; j<ic->nb_programs; j++) {
3602 AVDictionaryEntry *name = av_dict_get(ic->programs[j]->metadata,
3604 av_log(NULL, AV_LOG_INFO, " Program %d %s\n", ic->programs[j]->id,
3605 name ? name->value : "");
3606 dump_metadata(NULL, ic->programs[j]->metadata, " ");
3607 for(k=0; k<ic->programs[j]->nb_stream_indexes; k++) {
3608 dump_stream_format(ic, ic->programs[j]->stream_index[k], index, is_output);
3609 printed[ic->programs[j]->stream_index[k]] = 1;
3611 total += ic->programs[j]->nb_stream_indexes;
3613 if (total < ic->nb_streams)
3614 av_log(NULL, AV_LOG_INFO, " No Program\n");
3616 for(i=0;i<ic->nb_streams;i++)
3618 dump_stream_format(ic, i, index, is_output);
3623 uint64_t ff_ntp_time(void)
3625 return (av_gettime() / 1000) * 1000 + NTP_OFFSET_US;
3628 int av_get_frame_filename(char *buf, int buf_size,
3629 const char *path, int number)
3632 char *q, buf1[20], c;
3633 int nd, len, percentd_found;
3645 while (av_isdigit(*p)) {
3646 nd = nd * 10 + *p++ - '0';
3649 } while (av_isdigit(c));
3658 snprintf(buf1, sizeof(buf1), "%0*d", nd, number);
3660 if ((q - buf + len) > buf_size - 1)
3662 memcpy(q, buf1, len);
3670 if ((q - buf) < buf_size - 1)
3674 if (!percentd_found)
3683 static void hex_dump_internal(void *avcl, FILE *f, int level,
3684 const uint8_t *buf, int size)
3687 #define PRINT(...) do { if (!f) av_log(avcl, level, __VA_ARGS__); else fprintf(f, __VA_ARGS__); } while(0)
3689 for(i=0;i<size;i+=16) {
3696 PRINT(" %02x", buf[i+j]);
3701 for(j=0;j<len;j++) {
3703 if (c < ' ' || c > '~')
3712 void av_hex_dump(FILE *f, const uint8_t *buf, int size)
3714 hex_dump_internal(NULL, f, 0, buf, size);
3717 void av_hex_dump_log(void *avcl, int level, const uint8_t *buf, int size)
3719 hex_dump_internal(avcl, NULL, level, buf, size);
3722 static void pkt_dump_internal(void *avcl, FILE *f, int level, AVPacket *pkt, int dump_payload, AVRational time_base)
3724 #define PRINT(...) do { if (!f) av_log(avcl, level, __VA_ARGS__); else fprintf(f, __VA_ARGS__); } while(0)
3725 PRINT("stream #%d:\n", pkt->stream_index);
3726 PRINT(" keyframe=%d\n", ((pkt->flags & AV_PKT_FLAG_KEY) != 0));
3727 PRINT(" duration=%0.3f\n", pkt->duration * av_q2d(time_base));
3728 /* DTS is _always_ valid after av_read_frame() */
3730 if (pkt->dts == AV_NOPTS_VALUE)
3733 PRINT("%0.3f", pkt->dts * av_q2d(time_base));
3734 /* PTS may not be known if B-frames are present. */
3736 if (pkt->pts == AV_NOPTS_VALUE)
3739 PRINT("%0.3f", pkt->pts * av_q2d(time_base));
3741 PRINT(" size=%d\n", pkt->size);
3744 av_hex_dump(f, pkt->data, pkt->size);
3747 void av_pkt_dump2(FILE *f, AVPacket *pkt, int dump_payload, AVStream *st)
3749 pkt_dump_internal(NULL, f, 0, pkt, dump_payload, st->time_base);
3752 void av_pkt_dump_log2(void *avcl, int level, AVPacket *pkt, int dump_payload,
3755 pkt_dump_internal(avcl, NULL, level, pkt, dump_payload, st->time_base);
3758 void av_url_split(char *proto, int proto_size,
3759 char *authorization, int authorization_size,
3760 char *hostname, int hostname_size,
3762 char *path, int path_size,
3765 const char *p, *ls, *ls2, *at, *at2, *col, *brk;
3767 if (port_ptr) *port_ptr = -1;
3768 if (proto_size > 0) proto[0] = 0;
3769 if (authorization_size > 0) authorization[0] = 0;
3770 if (hostname_size > 0) hostname[0] = 0;
3771 if (path_size > 0) path[0] = 0;
3773 /* parse protocol */
3774 if ((p = strchr(url, ':'))) {
3775 av_strlcpy(proto, url, FFMIN(proto_size, p + 1 - url));
3780 /* no protocol means plain filename */
3781 av_strlcpy(path, url, path_size);
3785 /* separate path from hostname */
3786 ls = strchr(p, '/');
3787 ls2 = strchr(p, '?');
3791 ls = FFMIN(ls, ls2);
3793 av_strlcpy(path, ls, path_size);
3795 ls = &p[strlen(p)]; // XXX
3797 /* the rest is hostname, use that to parse auth/port */
3799 /* authorization (user[:pass]@hostname) */
3801 while ((at = strchr(p, '@')) && at < ls) {
3802 av_strlcpy(authorization, at2,
3803 FFMIN(authorization_size, at + 1 - at2));
3804 p = at + 1; /* skip '@' */
3807 if (*p == '[' && (brk = strchr(p, ']')) && brk < ls) {
3809 av_strlcpy(hostname, p + 1,
3810 FFMIN(hostname_size, brk - p));
3811 if (brk[1] == ':' && port_ptr)
3812 *port_ptr = atoi(brk + 2);
3813 } else if ((col = strchr(p, ':')) && col < ls) {
3814 av_strlcpy(hostname, p,
3815 FFMIN(col + 1 - p, hostname_size));
3816 if (port_ptr) *port_ptr = atoi(col + 1);
3818 av_strlcpy(hostname, p,
3819 FFMIN(ls + 1 - p, hostname_size));
3823 char *ff_data_to_hex(char *buff, const uint8_t *src, int s, int lowercase)
3826 static const char hex_table_uc[16] = { '0', '1', '2', '3',
3829 'C', 'D', 'E', 'F' };
3830 static const char hex_table_lc[16] = { '0', '1', '2', '3',
3833 'c', 'd', 'e', 'f' };
3834 const char *hex_table = lowercase ? hex_table_lc : hex_table_uc;
3836 for(i = 0; i < s; i++) {
3837 buff[i * 2] = hex_table[src[i] >> 4];
3838 buff[i * 2 + 1] = hex_table[src[i] & 0xF];
3844 int ff_hex_to_data(uint8_t *data, const char *p)
3851 p += strspn(p, SPACE_CHARS);
3854 c = av_toupper((unsigned char) *p++);
3855 if (c >= '0' && c <= '9')
3857 else if (c >= 'A' && c <= 'F')
3872 #if FF_API_SET_PTS_INFO
3873 void av_set_pts_info(AVStream *s, int pts_wrap_bits,
3874 unsigned int pts_num, unsigned int pts_den)
3876 avpriv_set_pts_info(s, pts_wrap_bits, pts_num, pts_den);
3880 void avpriv_set_pts_info(AVStream *s, int pts_wrap_bits,
3881 unsigned int pts_num, unsigned int pts_den)
3884 if(av_reduce(&new_tb.num, &new_tb.den, pts_num, pts_den, INT_MAX)){
3885 if(new_tb.num != pts_num)
3886 av_log(NULL, AV_LOG_DEBUG, "st:%d removing common factor %d from timebase\n", s->index, pts_num/new_tb.num);
3888 av_log(NULL, AV_LOG_WARNING, "st:%d has too large timebase, reducing\n", s->index);
3890 if(new_tb.num <= 0 || new_tb.den <= 0) {
3891 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);
3894 s->time_base = new_tb;
3895 av_codec_set_pkt_timebase(s->codec, new_tb);
3896 s->pts_wrap_bits = pts_wrap_bits;
3899 void ff_parse_key_value(const char *str, ff_parse_key_val_cb callback_get_buf,
3902 const char *ptr = str;
3904 /* Parse key=value pairs. */
3907 char *dest = NULL, *dest_end;
3908 int key_len, dest_len = 0;
3910 /* Skip whitespace and potential commas. */
3911 while (*ptr && (av_isspace(*ptr) || *ptr == ','))
3918 if (!(ptr = strchr(key, '=')))
3921 key_len = ptr - key;
3923 callback_get_buf(context, key, key_len, &dest, &dest_len);
3924 dest_end = dest + dest_len - 1;
3928 while (*ptr && *ptr != '\"') {
3932 if (dest && dest < dest_end)
3936 if (dest && dest < dest_end)
3944 for (; *ptr && !(av_isspace(*ptr) || *ptr == ','); ptr++)
3945 if (dest && dest < dest_end)
3953 int ff_find_stream_index(AVFormatContext *s, int id)
3956 for (i = 0; i < s->nb_streams; i++) {
3957 if (s->streams[i]->id == id)
3963 int64_t ff_iso8601_to_unix_time(const char *datestr)
3965 struct tm time1 = {0}, time2 = {0};
3967 ret1 = av_small_strptime(datestr, "%Y - %m - %d %H:%M:%S", &time1);
3968 ret2 = av_small_strptime(datestr, "%Y - %m - %dT%H:%M:%S", &time2);
3970 return av_timegm(&time2);
3972 return av_timegm(&time1);
3975 int avformat_query_codec(AVOutputFormat *ofmt, enum AVCodecID codec_id, int std_compliance)
3978 if (ofmt->query_codec)
3979 return ofmt->query_codec(codec_id, std_compliance);
3980 else if (ofmt->codec_tag)
3981 return !!av_codec_get_tag(ofmt->codec_tag, codec_id);
3982 else if (codec_id == ofmt->video_codec || codec_id == ofmt->audio_codec ||
3983 codec_id == ofmt->subtitle_codec)
3986 return AVERROR_PATCHWELCOME;
3989 int avformat_network_init(void)
3993 ff_network_inited_globally = 1;
3994 if ((ret = ff_network_init()) < 0)
4001 int avformat_network_deinit(void)
4010 int ff_add_param_change(AVPacket *pkt, int32_t channels,
4011 uint64_t channel_layout, int32_t sample_rate,
4012 int32_t width, int32_t height)
4018 return AVERROR(EINVAL);
4021 flags |= AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT;
4023 if (channel_layout) {
4025 flags |= AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT;
4029 flags |= AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE;
4031 if (width || height) {
4033 flags |= AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS;
4035 data = av_packet_new_side_data(pkt, AV_PKT_DATA_PARAM_CHANGE, size);
4037 return AVERROR(ENOMEM);
4038 bytestream_put_le32(&data, flags);
4040 bytestream_put_le32(&data, channels);
4042 bytestream_put_le64(&data, channel_layout);
4044 bytestream_put_le32(&data, sample_rate);
4045 if (width || height) {
4046 bytestream_put_le32(&data, width);
4047 bytestream_put_le32(&data, height);
4052 AVRational av_guess_sample_aspect_ratio(AVFormatContext *format, AVStream *stream, AVFrame *frame)
4054 AVRational undef = {0, 1};
4055 AVRational stream_sample_aspect_ratio = stream ? stream->sample_aspect_ratio : undef;
4056 AVRational codec_sample_aspect_ratio = stream && stream->codec ? stream->codec->sample_aspect_ratio : undef;
4057 AVRational frame_sample_aspect_ratio = frame ? frame->sample_aspect_ratio : codec_sample_aspect_ratio;
4059 av_reduce(&stream_sample_aspect_ratio.num, &stream_sample_aspect_ratio.den,
4060 stream_sample_aspect_ratio.num, stream_sample_aspect_ratio.den, INT_MAX);
4061 if (stream_sample_aspect_ratio.num <= 0 || stream_sample_aspect_ratio.den <= 0)
4062 stream_sample_aspect_ratio = undef;
4064 av_reduce(&frame_sample_aspect_ratio.num, &frame_sample_aspect_ratio.den,
4065 frame_sample_aspect_ratio.num, frame_sample_aspect_ratio.den, INT_MAX);
4066 if (frame_sample_aspect_ratio.num <= 0 || frame_sample_aspect_ratio.den <= 0)
4067 frame_sample_aspect_ratio = undef;
4069 if (stream_sample_aspect_ratio.num)
4070 return stream_sample_aspect_ratio;
4072 return frame_sample_aspect_ratio;
4075 AVRational av_guess_frame_rate(AVFormatContext *format, AVStream *st, AVFrame *frame)
4077 AVRational fr = st->r_frame_rate;
4079 if (st->codec->ticks_per_frame > 1) {
4080 AVRational codec_fr = av_inv_q(st->codec->time_base);
4081 AVRational avg_fr = st->avg_frame_rate;
4082 codec_fr.den *= st->codec->ticks_per_frame;
4083 if ( codec_fr.num > 0 && codec_fr.den > 0 && av_q2d(codec_fr) < av_q2d(fr)*0.7
4084 && fabs(1.0 - av_q2d(av_div_q(avg_fr, fr))) > 0.1)
4091 int avformat_match_stream_specifier(AVFormatContext *s, AVStream *st,
4094 if (*spec <= '9' && *spec >= '0') /* opt:index */
4095 return strtol(spec, NULL, 0) == st->index;
4096 else if (*spec == 'v' || *spec == 'a' || *spec == 's' || *spec == 'd' ||
4097 *spec == 't') { /* opt:[vasdt] */
4098 enum AVMediaType type;
4101 case 'v': type = AVMEDIA_TYPE_VIDEO; break;
4102 case 'a': type = AVMEDIA_TYPE_AUDIO; break;
4103 case 's': type = AVMEDIA_TYPE_SUBTITLE; break;
4104 case 'd': type = AVMEDIA_TYPE_DATA; break;
4105 case 't': type = AVMEDIA_TYPE_ATTACHMENT; break;
4106 default: av_assert0(0);
4108 if (type != st->codec->codec_type)
4110 if (*spec++ == ':') { /* possibly followed by :index */
4111 int i, index = strtol(spec, NULL, 0);
4112 for (i = 0; i < s->nb_streams; i++)
4113 if (s->streams[i]->codec->codec_type == type && index-- == 0)
4114 return i == st->index;
4118 } else if (*spec == 'p' && *(spec + 1) == ':') {
4122 prog_id = strtol(spec, &endptr, 0);
4123 for (i = 0; i < s->nb_programs; i++) {
4124 if (s->programs[i]->id != prog_id)
4127 if (*endptr++ == ':') {
4128 int stream_idx = strtol(endptr, NULL, 0);
4129 return stream_idx >= 0 &&
4130 stream_idx < s->programs[i]->nb_stream_indexes &&
4131 st->index == s->programs[i]->stream_index[stream_idx];
4134 for (j = 0; j < s->programs[i]->nb_stream_indexes; j++)
4135 if (st->index == s->programs[i]->stream_index[j])
4139 } else if (*spec == '#') {
4142 sid = strtol(spec + 1, &endptr, 0);
4144 return st->id == sid;
4145 } else if (!*spec) /* empty specifier, matches everything */
4148 av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
4149 return AVERROR(EINVAL);
4152 void ff_generate_avci_extradata(AVStream *st)
4154 static const uint8_t avci100_1080p_extradata[] = {
4156 0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
4157 0xb6, 0xd4, 0x20, 0x22, 0x33, 0x19, 0xc6, 0x63,
4158 0x23, 0x21, 0x01, 0x11, 0x98, 0xce, 0x33, 0x19,
4159 0x18, 0x21, 0x02, 0x56, 0xb9, 0x3d, 0x7d, 0x7e,
4160 0x4f, 0xe3, 0x3f, 0x11, 0xf1, 0x9e, 0x08, 0xb8,
4161 0x8c, 0x54, 0x43, 0xc0, 0x78, 0x02, 0x27, 0xe2,
4162 0x70, 0x1e, 0x30, 0x10, 0x10, 0x14, 0x00, 0x00,
4163 0x03, 0x00, 0x04, 0x00, 0x00, 0x03, 0x00, 0xca,
4164 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
4166 0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x33, 0x48,
4169 static const uint8_t avci100_1080i_extradata[] = {
4171 0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
4172 0xb6, 0xd4, 0x20, 0x22, 0x33, 0x19, 0xc6, 0x63,
4173 0x23, 0x21, 0x01, 0x11, 0x98, 0xce, 0x33, 0x19,
4174 0x18, 0x21, 0x03, 0x3a, 0x46, 0x65, 0x6a, 0x65,
4175 0x24, 0xad, 0xe9, 0x12, 0x32, 0x14, 0x1a, 0x26,
4176 0x34, 0xad, 0xa4, 0x41, 0x82, 0x23, 0x01, 0x50,
4177 0x2b, 0x1a, 0x24, 0x69, 0x48, 0x30, 0x40, 0x2e,
4178 0x11, 0x12, 0x08, 0xc6, 0x8c, 0x04, 0x41, 0x28,
4179 0x4c, 0x34, 0xf0, 0x1e, 0x01, 0x13, 0xf2, 0xe0,
4180 0x3c, 0x60, 0x20, 0x20, 0x28, 0x00, 0x00, 0x03,
4181 0x00, 0x08, 0x00, 0x00, 0x03, 0x01, 0x94, 0x00,
4183 0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x33, 0x48,
4186 static const uint8_t avci50_1080i_extradata[] = {
4188 0x00, 0x00, 0x00, 0x01, 0x67, 0x6e, 0x10, 0x28,
4189 0xa6, 0xd4, 0x20, 0x32, 0x33, 0x0c, 0x71, 0x18,
4190 0x88, 0x62, 0x10, 0x19, 0x19, 0x86, 0x38, 0x8c,
4191 0x44, 0x30, 0x21, 0x02, 0x56, 0x4e, 0x6e, 0x61,
4192 0x87, 0x3e, 0x73, 0x4d, 0x98, 0x0c, 0x03, 0x06,
4193 0x9c, 0x0b, 0x73, 0xe6, 0xc0, 0xb5, 0x18, 0x63,
4194 0x0d, 0x39, 0xe0, 0x5b, 0x02, 0xd4, 0xc6, 0x19,
4195 0x1a, 0x79, 0x8c, 0x32, 0x34, 0x24, 0xf0, 0x16,
4196 0x81, 0x13, 0xf7, 0xff, 0x80, 0x02, 0x00, 0x01,
4197 0xf1, 0x80, 0x80, 0x80, 0xa0, 0x00, 0x00, 0x03,
4198 0x00, 0x20, 0x00, 0x00, 0x06, 0x50, 0x80, 0x00,
4200 0x00, 0x00, 0x00, 0x01, 0x68, 0xee, 0x31, 0x12,
4203 static const uint8_t avci100_720p_extradata[] = {
4205 0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
4206 0xb6, 0xd4, 0x20, 0x2a, 0x33, 0x1d, 0xc7, 0x62,
4207 0xa1, 0x08, 0x40, 0x54, 0x66, 0x3b, 0x8e, 0xc5,
4208 0x42, 0x02, 0x10, 0x25, 0x64, 0x2c, 0x89, 0xe8,
4209 0x85, 0xe4, 0x21, 0x4b, 0x90, 0x83, 0x06, 0x95,
4210 0xd1, 0x06, 0x46, 0x97, 0x20, 0xc8, 0xd7, 0x43,
4211 0x08, 0x11, 0xc2, 0x1e, 0x4c, 0x91, 0x0f, 0x01,
4212 0x40, 0x16, 0xec, 0x07, 0x8c, 0x04, 0x04, 0x05,
4213 0x00, 0x00, 0x03, 0x00, 0x01, 0x00, 0x00, 0x03,
4214 0x00, 0x64, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00,
4216 0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x31, 0x12,
4220 const uint8_t *data = 0;
4221 if (st->codec->width == 1920) {
4222 if (st->codec->field_order == AV_FIELD_PROGRESSIVE) {
4223 data = avci100_1080p_extradata;
4224 size = sizeof(avci100_1080p_extradata);
4226 data = avci100_1080i_extradata;
4227 size = sizeof(avci100_1080i_extradata);
4229 } else if (st->codec->width == 1440) {
4230 data = avci50_1080i_extradata;
4231 size = sizeof(avci50_1080i_extradata);
4232 } else if (st->codec->width == 1280) {
4233 data = avci100_720p_extradata;
4234 size = sizeof(avci100_720p_extradata);
4238 av_freep(&st->codec->extradata);
4239 st->codec->extradata_size = 0;
4240 st->codec->extradata = av_mallocz(size + FF_INPUT_BUFFER_PADDING_SIZE);
4241 if (!st->codec->extradata)
4243 memcpy(st->codec->extradata, data, size);
4244 st->codec->extradata_size = size;