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
25 #include "avio_internal.h"
27 #include "libavcodec/internal.h"
28 #include "libavcodec/raw.h"
29 #include "libavcodec/bytestream.h"
30 #include "libavutil/opt.h"
31 #include "libavutil/dict.h"
32 #include "libavutil/internal.h"
33 #include "libavutil/pixdesc.h"
36 #include "libavutil/avassert.h"
37 #include "libavutil/avstring.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/parseutils.h"
40 #include "libavutil/time.h"
41 #include "libavutil/timestamp.h"
43 #include "audiointerleave.h"
55 * various utility functions for use within FFmpeg
58 unsigned avformat_version(void)
60 av_assert0(LIBAVFORMAT_VERSION_MICRO >= 100);
61 return LIBAVFORMAT_VERSION_INT;
64 const char *avformat_configuration(void)
66 return FFMPEG_CONFIGURATION;
69 const char *avformat_license(void)
71 #define LICENSE_PREFIX "libavformat license: "
72 return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
75 #define RELATIVE_TS_BASE (INT64_MAX - (1LL<<48))
77 static int is_relative(int64_t ts) {
78 return ts > (RELATIVE_TS_BASE - (1LL<<48));
82 * Wrap a given time stamp, if there is an indication for an overflow
85 * @param timestamp the time stamp to wrap
86 * @return resulting time stamp
88 static int64_t wrap_timestamp(AVStream *st, int64_t timestamp)
90 if (st->pts_wrap_behavior != AV_PTS_WRAP_IGNORE &&
91 st->pts_wrap_reference != AV_NOPTS_VALUE && timestamp != AV_NOPTS_VALUE) {
92 if (st->pts_wrap_behavior == AV_PTS_WRAP_ADD_OFFSET &&
93 timestamp < st->pts_wrap_reference)
94 return timestamp + (1ULL<<st->pts_wrap_bits);
95 else if (st->pts_wrap_behavior == AV_PTS_WRAP_SUB_OFFSET &&
96 timestamp >= st->pts_wrap_reference)
97 return timestamp - (1ULL<<st->pts_wrap_bits);
102 MAKE_ACCESSORS(AVStream, stream, AVRational, r_frame_rate)
103 MAKE_ACCESSORS(AVFormatContext, format, AVCodec *, video_codec)
104 MAKE_ACCESSORS(AVFormatContext, format, AVCodec *, audio_codec)
105 MAKE_ACCESSORS(AVFormatContext, format, AVCodec *, subtitle_codec)
107 static AVCodec *find_decoder(AVFormatContext *s, AVStream *st, enum AVCodecID codec_id)
109 if (st->codec->codec)
110 return st->codec->codec;
112 switch(st->codec->codec_type){
113 case AVMEDIA_TYPE_VIDEO:
114 if(s->video_codec) return s->video_codec;
116 case AVMEDIA_TYPE_AUDIO:
117 if(s->audio_codec) return s->audio_codec;
119 case AVMEDIA_TYPE_SUBTITLE:
120 if(s->subtitle_codec) return s->subtitle_codec;
124 return avcodec_find_decoder(codec_id);
127 int av_format_get_probe_score(const AVFormatContext *s)
129 return s->probe_score;
132 /* an arbitrarily chosen "sane" max packet size -- 50M */
133 #define SANE_CHUNK_SIZE (50000000)
135 int ffio_limit(AVIOContext *s, int size)
138 int64_t remaining= s->maxsize - avio_tell(s);
139 if(remaining < size){
140 int64_t newsize= avio_size(s);
141 if(!s->maxsize || s->maxsize<newsize)
142 s->maxsize= newsize - !newsize;
143 remaining= s->maxsize - avio_tell(s);
144 remaining= FFMAX(remaining, 0);
147 if(s->maxsize>=0 && remaining+1 < size){
148 av_log(NULL, remaining ? AV_LOG_ERROR : AV_LOG_DEBUG, "Truncating packet of size %d to %"PRId64"\n", size, remaining+1);
156 * Read the data in sane-sized chunks and append to pkt.
157 * Return the number of bytes read or an error.
159 static int append_packet_chunked(AVIOContext *s, AVPacket *pkt, int size)
161 int64_t orig_pos = pkt->pos; // av_grow_packet might reset pos
162 int orig_size = pkt->size;
166 int prev_size = pkt->size;
170 * When the caller requests a lot of data, limit it to the amount left
171 * in file or SANE_CHUNK_SIZE when it is not known
174 if (read_size > SANE_CHUNK_SIZE/10) {
175 read_size = ffio_limit(s, read_size);
176 // If filesize/maxsize is unknown, limit to SANE_CHUNK_SIZE
178 read_size = FFMIN(read_size, SANE_CHUNK_SIZE);
181 ret = av_grow_packet(pkt, read_size);
185 ret = avio_read(s, pkt->data + prev_size, read_size);
186 if (ret != read_size) {
187 av_shrink_packet(pkt, prev_size + FFMAX(ret, 0));
194 pkt->flags |= AV_PKT_FLAG_CORRUPT;
199 return pkt->size > orig_size ? pkt->size - orig_size : ret;
202 int av_get_packet(AVIOContext *s, AVPacket *pkt, int size)
207 pkt->pos = avio_tell(s);
209 return append_packet_chunked(s, pkt, size);
212 int av_append_packet(AVIOContext *s, AVPacket *pkt, int size)
215 return av_get_packet(s, pkt, size);
216 return append_packet_chunked(s, pkt, size);
220 int av_filename_number_test(const char *filename)
223 return filename && (av_get_frame_filename(buf, sizeof(buf), filename, 1)>=0);
226 AVInputFormat *av_probe_input_format3(AVProbeData *pd, int is_opened, int *score_ret)
228 AVProbeData lpd = *pd;
229 AVInputFormat *fmt1 = NULL, *fmt;
230 int score, nodat = 0, score_max=0;
231 const static uint8_t zerobuffer[AVPROBE_PADDING_SIZE];
234 lpd.buf = zerobuffer;
236 if (lpd.buf_size > 10 && ff_id3v2_match(lpd.buf, ID3v2_DEFAULT_MAGIC)) {
237 int id3len = ff_id3v2_tag_len(lpd.buf);
238 if (lpd.buf_size > id3len + 16) {
240 lpd.buf_size -= id3len;
246 while ((fmt1 = av_iformat_next(fmt1))) {
247 if (!is_opened == !(fmt1->flags & AVFMT_NOFILE))
250 if (fmt1->read_probe) {
251 score = fmt1->read_probe(&lpd);
252 if(fmt1->extensions && av_match_ext(lpd.filename, fmt1->extensions))
253 score = FFMAX(score, nodat ? AVPROBE_SCORE_EXTENSION / 2 - 1 : 1);
254 } else if (fmt1->extensions) {
255 if (av_match_ext(lpd.filename, fmt1->extensions)) {
256 score = AVPROBE_SCORE_EXTENSION;
259 if (score > score_max) {
262 }else if (score == score_max)
266 score_max = FFMIN(AVPROBE_SCORE_EXTENSION / 2 - 1, score_max);
267 *score_ret= score_max;
272 AVInputFormat *av_probe_input_format2(AVProbeData *pd, int is_opened, int *score_max)
275 AVInputFormat *fmt= av_probe_input_format3(pd, is_opened, &score_ret);
276 if(score_ret > *score_max){
277 *score_max= score_ret;
283 AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened){
285 return av_probe_input_format2(pd, is_opened, &score);
288 static int set_codec_from_probe_data(AVFormatContext *s, AVStream *st, AVProbeData *pd)
290 static const struct {
291 const char *name; enum AVCodecID id; enum AVMediaType type;
293 { "aac" , AV_CODEC_ID_AAC , AVMEDIA_TYPE_AUDIO },
294 { "ac3" , AV_CODEC_ID_AC3 , AVMEDIA_TYPE_AUDIO },
295 { "dts" , AV_CODEC_ID_DTS , AVMEDIA_TYPE_AUDIO },
296 { "eac3" , AV_CODEC_ID_EAC3 , AVMEDIA_TYPE_AUDIO },
297 { "h264" , AV_CODEC_ID_H264 , AVMEDIA_TYPE_VIDEO },
298 { "loas" , AV_CODEC_ID_AAC_LATM , AVMEDIA_TYPE_AUDIO },
299 { "m4v" , AV_CODEC_ID_MPEG4 , AVMEDIA_TYPE_VIDEO },
300 { "mp3" , AV_CODEC_ID_MP3 , AVMEDIA_TYPE_AUDIO },
301 { "mpegvideo", AV_CODEC_ID_MPEG2VIDEO, AVMEDIA_TYPE_VIDEO },
305 AVInputFormat *fmt = av_probe_input_format3(pd, 1, &score);
307 if (fmt && st->request_probe <= score) {
309 av_log(s, AV_LOG_DEBUG, "Probe with size=%d, packets=%d detected %s with score=%d\n",
310 pd->buf_size, MAX_PROBE_PACKETS - st->probe_packets, fmt->name, score);
311 for (i = 0; fmt_id_type[i].name; i++) {
312 if (!strcmp(fmt->name, fmt_id_type[i].name)) {
313 st->codec->codec_id = fmt_id_type[i].id;
314 st->codec->codec_type = fmt_id_type[i].type;
322 /************************************************************/
323 /* input media file */
325 int av_demuxer_open(AVFormatContext *ic){
328 if (ic->iformat->read_header) {
329 err = ic->iformat->read_header(ic);
334 if (ic->pb && !ic->data_offset)
335 ic->data_offset = avio_tell(ic->pb);
341 int av_probe_input_buffer2(AVIOContext *pb, AVInputFormat **fmt,
342 const char *filename, void *logctx,
343 unsigned int offset, unsigned int max_probe_size)
345 AVProbeData pd = { filename ? filename : "", NULL, -offset };
346 unsigned char *buf = NULL;
348 int ret = 0, probe_size, buf_offset = 0;
351 if (!max_probe_size) {
352 max_probe_size = PROBE_BUF_MAX;
353 } else if (max_probe_size > PROBE_BUF_MAX) {
354 max_probe_size = PROBE_BUF_MAX;
355 } else if (max_probe_size < PROBE_BUF_MIN) {
356 av_log(logctx, AV_LOG_ERROR,
357 "Specified probe size value %u cannot be < %u\n", max_probe_size, PROBE_BUF_MIN);
358 return AVERROR(EINVAL);
361 if (offset >= max_probe_size) {
362 return AVERROR(EINVAL);
365 if (!*fmt && pb->av_class && av_opt_get(pb, "mime_type", AV_OPT_SEARCH_CHILDREN, &mime_type) >= 0 && mime_type) {
366 if (!av_strcasecmp(mime_type, "audio/aacp")) {
367 *fmt = av_find_input_format("aac");
369 av_freep(&mime_type);
372 for(probe_size= PROBE_BUF_MIN; probe_size<=max_probe_size && !*fmt;
373 probe_size = FFMIN(probe_size<<1, FFMAX(max_probe_size, probe_size+1))) {
375 if (probe_size < offset) {
378 score = probe_size < max_probe_size ? AVPROBE_SCORE_RETRY : 0;
380 /* read probe data */
381 if ((ret = av_reallocp(&buf, probe_size + AVPROBE_PADDING_SIZE)) < 0)
383 if ((ret = avio_read(pb, buf + buf_offset, probe_size - buf_offset)) < 0) {
384 /* fail if error was not end of file, otherwise, lower score */
385 if (ret != AVERROR_EOF) {
390 ret = 0; /* error was end of file, nothing read */
392 pd.buf_size = buf_offset += ret;
393 pd.buf = &buf[offset];
395 memset(pd.buf + pd.buf_size, 0, AVPROBE_PADDING_SIZE);
397 /* guess file format */
398 *fmt = av_probe_input_format2(&pd, 1, &score);
400 if(score <= AVPROBE_SCORE_RETRY){ //this can only be true in the last iteration
401 av_log(logctx, AV_LOG_WARNING, "Format %s detected only with low score of %d, misdetection possible!\n", (*fmt)->name, score);
403 av_log(logctx, AV_LOG_DEBUG, "Format %s probed with size=%d and score=%d\n", (*fmt)->name, probe_size, score);
405 FILE *f = fopen("probestat.tmp", "ab");
406 fprintf(f, "probe_size:%d format:%s score:%d filename:%s\n", probe_size, (*fmt)->name, score, filename);
414 return AVERROR_INVALIDDATA;
417 /* rewind. reuse probe buffer to avoid seeking */
418 ret = ffio_rewind_with_probe_data(pb, &buf, pd.buf_size);
420 return ret < 0 ? ret : score;
423 int av_probe_input_buffer(AVIOContext *pb, AVInputFormat **fmt,
424 const char *filename, void *logctx,
425 unsigned int offset, unsigned int max_probe_size)
427 int ret = av_probe_input_buffer2(pb, fmt, filename, logctx, offset, max_probe_size);
428 return ret < 0 ? ret : 0;
432 /* open input file and probe the format if necessary */
433 static int init_input(AVFormatContext *s, const char *filename, AVDictionary **options)
436 AVProbeData pd = {filename, NULL, 0};
437 int score = AVPROBE_SCORE_RETRY;
440 s->flags |= AVFMT_FLAG_CUSTOM_IO;
442 return av_probe_input_buffer2(s->pb, &s->iformat, filename, s, 0, s->probesize);
443 else if (s->iformat->flags & AVFMT_NOFILE)
444 av_log(s, AV_LOG_WARNING, "Custom AVIOContext makes no sense and "
445 "will be ignored with AVFMT_NOFILE format.\n");
449 if ( (s->iformat && s->iformat->flags & AVFMT_NOFILE) ||
450 (!s->iformat && (s->iformat = av_probe_input_format2(&pd, 0, &score))))
453 if ((ret = avio_open2(&s->pb, filename, AVIO_FLAG_READ | s->avio_flags,
454 &s->interrupt_callback, options)) < 0)
458 return av_probe_input_buffer2(s->pb, &s->iformat, filename, s, 0, s->probesize);
461 static AVPacket *add_to_pktbuf(AVPacketList **packet_buffer, AVPacket *pkt,
462 AVPacketList **plast_pktl){
463 AVPacketList *pktl = av_mallocz(sizeof(AVPacketList));
468 (*plast_pktl)->next = pktl;
470 *packet_buffer = pktl;
472 /* add the packet in the buffered packet list */
478 int avformat_queue_attached_pictures(AVFormatContext *s)
481 for (i = 0; i < s->nb_streams; i++)
482 if (s->streams[i]->disposition & AV_DISPOSITION_ATTACHED_PIC &&
483 s->streams[i]->discard < AVDISCARD_ALL) {
484 AVPacket copy = s->streams[i]->attached_pic;
485 copy.buf = av_buffer_ref(copy.buf);
487 return AVERROR(ENOMEM);
489 add_to_pktbuf(&s->raw_packet_buffer, ©, &s->raw_packet_buffer_end);
494 int avformat_open_input(AVFormatContext **ps, const char *filename, AVInputFormat *fmt, AVDictionary **options)
496 AVFormatContext *s = *ps;
498 AVDictionary *tmp = NULL;
499 ID3v2ExtraMeta *id3v2_extra_meta = NULL;
501 if (!s && !(s = avformat_alloc_context()))
502 return AVERROR(ENOMEM);
504 av_log(NULL, AV_LOG_ERROR, "Input context has not been properly allocated by avformat_alloc_context() and is not NULL either\n");
505 return AVERROR(EINVAL);
511 av_dict_copy(&tmp, *options, 0);
513 if ((ret = av_opt_set_dict(s, &tmp)) < 0)
516 if ((ret = init_input(s, filename, &tmp)) < 0)
518 s->probe_score = ret;
519 avio_skip(s->pb, s->skip_initial_bytes);
521 /* check filename in case an image number is expected */
522 if (s->iformat->flags & AVFMT_NEEDNUMBER) {
523 if (!av_filename_number_test(filename)) {
524 ret = AVERROR(EINVAL);
529 s->duration = s->start_time = AV_NOPTS_VALUE;
530 av_strlcpy(s->filename, filename ? filename : "", sizeof(s->filename));
532 /* allocate private data */
533 if (s->iformat->priv_data_size > 0) {
534 if (!(s->priv_data = av_mallocz(s->iformat->priv_data_size))) {
535 ret = AVERROR(ENOMEM);
538 if (s->iformat->priv_class) {
539 *(const AVClass**)s->priv_data = s->iformat->priv_class;
540 av_opt_set_defaults(s->priv_data);
541 if ((ret = av_opt_set_dict(s->priv_data, &tmp)) < 0)
546 /* e.g. AVFMT_NOFILE formats will not have a AVIOContext */
548 ff_id3v2_read(s, ID3v2_DEFAULT_MAGIC, &id3v2_extra_meta);
550 if (!(s->flags&AVFMT_FLAG_PRIV_OPT) && s->iformat->read_header)
551 if ((ret = s->iformat->read_header(s)) < 0)
554 if (id3v2_extra_meta) {
555 if (!strcmp(s->iformat->name, "mp3") || !strcmp(s->iformat->name, "aac") ||
556 !strcmp(s->iformat->name, "tta")) {
557 if((ret = ff_id3v2_parse_apic(s, &id3v2_extra_meta)) < 0)
560 av_log(s, AV_LOG_DEBUG, "demuxer does not support additional id3 data, skipping\n");
562 ff_id3v2_free_extra_meta(&id3v2_extra_meta);
564 if ((ret = avformat_queue_attached_pictures(s)) < 0)
567 if (!(s->flags&AVFMT_FLAG_PRIV_OPT) && s->pb && !s->data_offset)
568 s->data_offset = avio_tell(s->pb);
570 s->raw_packet_buffer_remaining_size = RAW_PACKET_BUFFER_SIZE;
573 av_dict_free(options);
580 ff_id3v2_free_extra_meta(&id3v2_extra_meta);
582 if (s->pb && !(s->flags & AVFMT_FLAG_CUSTOM_IO))
584 avformat_free_context(s);
589 /*******************************************************/
591 static void force_codec_ids(AVFormatContext *s, AVStream *st)
593 switch(st->codec->codec_type){
594 case AVMEDIA_TYPE_VIDEO:
595 if(s->video_codec_id) st->codec->codec_id= s->video_codec_id;
597 case AVMEDIA_TYPE_AUDIO:
598 if(s->audio_codec_id) st->codec->codec_id= s->audio_codec_id;
600 case AVMEDIA_TYPE_SUBTITLE:
601 if(s->subtitle_codec_id)st->codec->codec_id= s->subtitle_codec_id;
606 static int probe_codec(AVFormatContext *s, AVStream *st, const AVPacket *pkt)
608 if(st->request_probe>0){
609 AVProbeData *pd = &st->probe_data;
611 av_log(s, AV_LOG_DEBUG, "probing stream %d pp:%d\n", st->index, st->probe_packets);
615 uint8_t *new_buf = av_realloc(pd->buf, pd->buf_size+pkt->size+AVPROBE_PADDING_SIZE);
617 av_log(s, AV_LOG_WARNING,
618 "Failed to reallocate probe buffer for stream %d\n",
623 memcpy(pd->buf+pd->buf_size, pkt->data, pkt->size);
624 pd->buf_size += pkt->size;
625 memset(pd->buf+pd->buf_size, 0, AVPROBE_PADDING_SIZE);
628 st->probe_packets = 0;
630 av_log(s, AV_LOG_WARNING, "nothing to probe for stream %d\n",
635 end= s->raw_packet_buffer_remaining_size <= 0
636 || st->probe_packets<=0;
638 if(end || av_log2(pd->buf_size) != av_log2(pd->buf_size - pkt->size)){
639 int score= set_codec_from_probe_data(s, st, pd);
640 if( (st->codec->codec_id != AV_CODEC_ID_NONE && score > AVPROBE_SCORE_RETRY)
644 st->request_probe= -1;
645 if(st->codec->codec_id != AV_CODEC_ID_NONE){
646 av_log(s, AV_LOG_DEBUG, "probed stream %d\n", st->index);
648 av_log(s, AV_LOG_WARNING, "probed stream %d failed\n", st->index);
650 force_codec_ids(s, st);
656 int ff_read_packet(AVFormatContext *s, AVPacket *pkt)
662 AVPacketList *pktl = s->raw_packet_buffer;
666 st = s->streams[pkt->stream_index];
667 if (s->raw_packet_buffer_remaining_size <= 0) {
668 if ((err = probe_codec(s, st, NULL)) < 0)
671 if(st->request_probe <= 0){
672 s->raw_packet_buffer = pktl->next;
673 s->raw_packet_buffer_remaining_size += pkt->size;
682 ret= s->iformat->read_packet(s, pkt);
684 if (!pktl || ret == AVERROR(EAGAIN))
686 for (i = 0; i < s->nb_streams; i++) {
688 if (st->probe_packets) {
689 if ((err = probe_codec(s, st, NULL)) < 0)
692 av_assert0(st->request_probe <= 0);
697 if ((s->flags & AVFMT_FLAG_DISCARD_CORRUPT) &&
698 (pkt->flags & AV_PKT_FLAG_CORRUPT)) {
699 av_log(s, AV_LOG_WARNING,
700 "Dropped corrupted packet (stream = %d)\n",
706 if(pkt->stream_index >= (unsigned)s->nb_streams){
707 av_log(s, AV_LOG_ERROR, "Invalid stream index %d\n", pkt->stream_index);
711 st= s->streams[pkt->stream_index];
712 pkt->dts = wrap_timestamp(st, pkt->dts);
713 pkt->pts = wrap_timestamp(st, pkt->pts);
715 force_codec_ids(s, st);
717 /* TODO: audio: time filter; video: frame reordering (pts != dts) */
718 if (s->use_wallclock_as_timestamps)
719 pkt->dts = pkt->pts = av_rescale_q(av_gettime(), AV_TIME_BASE_Q, st->time_base);
721 if(!pktl && st->request_probe <= 0)
724 add_to_pktbuf(&s->raw_packet_buffer, pkt, &s->raw_packet_buffer_end);
725 s->raw_packet_buffer_remaining_size -= pkt->size;
727 if ((err = probe_codec(s, st, pkt)) < 0)
732 #if FF_API_READ_PACKET
733 int av_read_packet(AVFormatContext *s, AVPacket *pkt)
735 return ff_read_packet(s, pkt);
740 /**********************************************************/
742 static int determinable_frame_size(AVCodecContext *avctx)
744 if (/*avctx->codec_id == AV_CODEC_ID_AAC ||*/
745 avctx->codec_id == AV_CODEC_ID_MP1 ||
746 avctx->codec_id == AV_CODEC_ID_MP2 ||
747 avctx->codec_id == AV_CODEC_ID_MP3/* ||
748 avctx->codec_id == AV_CODEC_ID_CELT*/)
754 * Get the number of samples of an audio frame. Return -1 on error.
756 int ff_get_audio_frame_size(AVCodecContext *enc, int size, int mux)
760 /* give frame_size priority if demuxing */
761 if (!mux && enc->frame_size > 1)
762 return enc->frame_size;
764 if ((frame_size = av_get_audio_frame_duration(enc, size)) > 0)
767 /* Fall back on using frame_size if muxing. */
768 if (enc->frame_size > 1)
769 return enc->frame_size;
771 //For WMA we currently have no other means to calculate duration thus we
772 //do it here by assuming CBR, which is true for all known cases.
773 if(!mux && enc->bit_rate>0 && size>0 && enc->sample_rate>0 && enc->block_align>1) {
774 if (enc->codec_id == AV_CODEC_ID_WMAV1 || enc->codec_id == AV_CODEC_ID_WMAV2)
775 return ((int64_t)size * 8 * enc->sample_rate) / enc->bit_rate;
783 * Return the frame duration in seconds. Return 0 if not available.
785 void ff_compute_frame_duration(int *pnum, int *pden, AVStream *st,
786 AVCodecParserContext *pc, AVPacket *pkt)
792 switch(st->codec->codec_type) {
793 case AVMEDIA_TYPE_VIDEO:
794 if (st->r_frame_rate.num && !pc) {
795 *pnum = st->r_frame_rate.den;
796 *pden = st->r_frame_rate.num;
797 } else if(st->time_base.num*1000LL > st->time_base.den) {
798 *pnum = st->time_base.num;
799 *pden = st->time_base.den;
800 }else if(st->codec->time_base.num*1000LL > st->codec->time_base.den){
801 *pnum = st->codec->time_base.num;
802 *pden = st->codec->time_base.den;
803 if (pc && pc->repeat_pict) {
804 if (*pnum > INT_MAX / (1 + pc->repeat_pict))
805 *pden /= 1 + pc->repeat_pict;
807 *pnum *= 1 + pc->repeat_pict;
809 //If this codec can be interlaced or progressive then we need a parser to compute duration of a packet
810 //Thus if we have no parser in such case leave duration undefined.
811 if(st->codec->ticks_per_frame>1 && !pc){
816 case AVMEDIA_TYPE_AUDIO:
817 frame_size = ff_get_audio_frame_size(st->codec, pkt->size, 0);
818 if (frame_size <= 0 || st->codec->sample_rate <= 0)
821 *pden = st->codec->sample_rate;
828 static int is_intra_only(AVCodecContext *enc){
829 const AVCodecDescriptor *desc;
831 if(enc->codec_type != AVMEDIA_TYPE_VIDEO)
834 desc = av_codec_get_codec_descriptor(enc);
836 desc = avcodec_descriptor_get(enc->codec_id);
837 av_codec_set_codec_descriptor(enc, desc);
840 return !!(desc->props & AV_CODEC_PROP_INTRA_ONLY);
844 static int has_decode_delay_been_guessed(AVStream *st)
846 if(st->codec->codec_id != AV_CODEC_ID_H264) return 1;
847 if(!st->info) // if we have left find_stream_info then nb_decoded_frames won't increase anymore for stream copy
849 #if CONFIG_H264_DECODER
850 if(st->codec->has_b_frames &&
851 avpriv_h264_has_num_reorder_frames(st->codec) == st->codec->has_b_frames)
854 if(st->codec->has_b_frames<3)
855 return st->nb_decoded_frames >= 7;
856 else if(st->codec->has_b_frames<4)
857 return st->nb_decoded_frames >= 18;
859 return st->nb_decoded_frames >= 20;
862 static AVPacketList *get_next_pkt(AVFormatContext *s, AVStream *st, AVPacketList *pktl)
866 if (pktl == s->parse_queue_end)
867 return s->packet_buffer;
871 static int update_wrap_reference(AVFormatContext *s, AVStream *st, int stream_index)
873 if (s->correct_ts_overflow && st->pts_wrap_bits < 63 &&
874 st->pts_wrap_reference == AV_NOPTS_VALUE && st->first_dts != AV_NOPTS_VALUE) {
877 int64_t ref = st->first_dts & ((1LL<<st->pts_wrap_bits)-1);
878 // reference time stamp should be 60 s before first time stamp
879 int64_t pts_wrap_reference = ref - av_rescale(60, st->time_base.den, st->time_base.num);
880 // if first time stamp is not more than 1/8 and 60s before the wrap point, subtract rather than add wrap offset
881 int pts_wrap_behavior = (ref < (1LL<<st->pts_wrap_bits) - (1LL<<st->pts_wrap_bits-3)) ||
882 (ref < (1LL<<st->pts_wrap_bits) - av_rescale(60, st->time_base.den, st->time_base.num)) ?
883 AV_PTS_WRAP_ADD_OFFSET : AV_PTS_WRAP_SUB_OFFSET;
885 AVProgram *first_program = av_find_program_from_stream(s, NULL, stream_index);
887 if (!first_program) {
888 int default_stream_index = av_find_default_stream_index(s);
889 if (s->streams[default_stream_index]->pts_wrap_reference == AV_NOPTS_VALUE) {
890 for (i=0; i<s->nb_streams; i++) {
891 s->streams[i]->pts_wrap_reference = pts_wrap_reference;
892 s->streams[i]->pts_wrap_behavior = pts_wrap_behavior;
896 st->pts_wrap_reference = s->streams[default_stream_index]->pts_wrap_reference;
897 st->pts_wrap_behavior = s->streams[default_stream_index]->pts_wrap_behavior;
901 AVProgram *program = first_program;
903 if (program->pts_wrap_reference != AV_NOPTS_VALUE) {
904 pts_wrap_reference = program->pts_wrap_reference;
905 pts_wrap_behavior = program->pts_wrap_behavior;
908 program = av_find_program_from_stream(s, program, stream_index);
911 // update every program with differing pts_wrap_reference
912 program = first_program;
914 if (program->pts_wrap_reference != pts_wrap_reference) {
915 for (i=0; i<program->nb_stream_indexes; i++) {
916 s->streams[program->stream_index[i]]->pts_wrap_reference = pts_wrap_reference;
917 s->streams[program->stream_index[i]]->pts_wrap_behavior = pts_wrap_behavior;
920 program->pts_wrap_reference = pts_wrap_reference;
921 program->pts_wrap_behavior = pts_wrap_behavior;
923 program = av_find_program_from_stream(s, program, stream_index);
931 static void update_initial_timestamps(AVFormatContext *s, int stream_index,
932 int64_t dts, int64_t pts, AVPacket *pkt)
934 AVStream *st= s->streams[stream_index];
935 AVPacketList *pktl= s->parse_queue ? s->parse_queue : s->packet_buffer;
936 int64_t pts_buffer[MAX_REORDER_DELAY+1];
940 if(st->first_dts != AV_NOPTS_VALUE || dts == AV_NOPTS_VALUE || st->cur_dts == AV_NOPTS_VALUE || is_relative(dts))
943 delay = st->codec->has_b_frames;
944 st->first_dts= dts - (st->cur_dts - RELATIVE_TS_BASE);
946 shift = st->first_dts - RELATIVE_TS_BASE;
948 for (i=0; i<MAX_REORDER_DELAY+1; i++)
949 pts_buffer[i] = AV_NOPTS_VALUE;
951 if (is_relative(pts))
954 for(; pktl; pktl= get_next_pkt(s, st, pktl)){
955 if(pktl->pkt.stream_index != stream_index)
957 if(is_relative(pktl->pkt.pts))
958 pktl->pkt.pts += shift;
960 if(is_relative(pktl->pkt.dts))
961 pktl->pkt.dts += shift;
963 if(st->start_time == AV_NOPTS_VALUE && pktl->pkt.pts != AV_NOPTS_VALUE)
964 st->start_time= pktl->pkt.pts;
966 if(pktl->pkt.pts != AV_NOPTS_VALUE && delay <= MAX_REORDER_DELAY && has_decode_delay_been_guessed(st)){
967 pts_buffer[0]= pktl->pkt.pts;
968 for(i=0; i<delay && pts_buffer[i] > pts_buffer[i+1]; i++)
969 FFSWAP(int64_t, pts_buffer[i], pts_buffer[i+1]);
970 if(pktl->pkt.dts == AV_NOPTS_VALUE)
971 pktl->pkt.dts= pts_buffer[0];
975 if (update_wrap_reference(s, st, stream_index) && st->pts_wrap_behavior == AV_PTS_WRAP_SUB_OFFSET) {
976 // correct first time stamps to negative values
977 st->first_dts = wrap_timestamp(st, st->first_dts);
978 st->cur_dts = wrap_timestamp(st, st->cur_dts);
979 pkt->dts = wrap_timestamp(st, pkt->dts);
980 pkt->pts = wrap_timestamp(st, pkt->pts);
981 pts = wrap_timestamp(st, pts);
984 if (st->start_time == AV_NOPTS_VALUE)
985 st->start_time = pts;
988 static void update_initial_durations(AVFormatContext *s, AVStream *st,
989 int stream_index, int duration)
991 AVPacketList *pktl= s->parse_queue ? s->parse_queue : s->packet_buffer;
992 int64_t cur_dts= RELATIVE_TS_BASE;
994 if(st->first_dts != AV_NOPTS_VALUE){
995 cur_dts= st->first_dts;
996 for(; pktl; pktl= get_next_pkt(s, st, pktl)){
997 if(pktl->pkt.stream_index == stream_index){
998 if(pktl->pkt.pts != pktl->pkt.dts || pktl->pkt.dts != AV_NOPTS_VALUE || pktl->pkt.duration)
1000 cur_dts -= duration;
1003 if(pktl && pktl->pkt.dts != st->first_dts) {
1004 av_log(s, AV_LOG_DEBUG, "first_dts %s not matching first dts %s (pts %s, duration %d) in the queue\n",
1005 av_ts2str(st->first_dts), av_ts2str(pktl->pkt.dts), av_ts2str(pktl->pkt.pts), pktl->pkt.duration);
1009 av_log(s, AV_LOG_DEBUG, "first_dts %s but no packet with dts in the queue\n", av_ts2str(st->first_dts));
1012 pktl= s->parse_queue ? s->parse_queue : s->packet_buffer;
1013 st->first_dts = cur_dts;
1014 }else if(st->cur_dts != RELATIVE_TS_BASE)
1017 for(; pktl; pktl= get_next_pkt(s, st, pktl)){
1018 if(pktl->pkt.stream_index != stream_index)
1020 if(pktl->pkt.pts == pktl->pkt.dts && (pktl->pkt.dts == AV_NOPTS_VALUE || pktl->pkt.dts == st->first_dts)
1021 && !pktl->pkt.duration){
1022 pktl->pkt.dts= cur_dts;
1023 if(!st->codec->has_b_frames)
1024 pktl->pkt.pts= cur_dts;
1025 // if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
1026 pktl->pkt.duration = duration;
1029 cur_dts = pktl->pkt.dts + pktl->pkt.duration;
1032 st->cur_dts= cur_dts;
1035 static void compute_pkt_fields(AVFormatContext *s, AVStream *st,
1036 AVCodecParserContext *pc, AVPacket *pkt)
1038 int num, den, presentation_delayed, delay, i;
1041 if (s->flags & AVFMT_FLAG_NOFILLIN)
1044 if((s->flags & AVFMT_FLAG_IGNDTS) && pkt->pts != AV_NOPTS_VALUE)
1045 pkt->dts= AV_NOPTS_VALUE;
1047 if (pc && pc->pict_type == AV_PICTURE_TYPE_B
1048 && !st->codec->has_b_frames)
1049 //FIXME Set low_delay = 0 when has_b_frames = 1
1050 st->codec->has_b_frames = 1;
1052 /* do we have a video B-frame ? */
1053 delay= st->codec->has_b_frames;
1054 presentation_delayed = 0;
1056 /* XXX: need has_b_frame, but cannot get it if the codec is
1059 pc && pc->pict_type != AV_PICTURE_TYPE_B)
1060 presentation_delayed = 1;
1062 if (pkt->pts != AV_NOPTS_VALUE && pkt->dts != AV_NOPTS_VALUE &&
1063 st->pts_wrap_bits < 63 &&
1064 pkt->dts - (1LL << (st->pts_wrap_bits - 1)) > pkt->pts) {
1065 if(is_relative(st->cur_dts) || pkt->dts - (1LL<<(st->pts_wrap_bits-1)) > st->cur_dts) {
1066 pkt->dts -= 1LL<<st->pts_wrap_bits;
1068 pkt->pts += 1LL<<st->pts_wrap_bits;
1071 // some mpeg2 in mpeg-ps lack dts (issue171 / input_file.mpg)
1072 // we take the conservative approach and discard both
1073 // Note, if this is misbehaving for a H.264 file then possibly presentation_delayed is not set correctly.
1074 if(delay==1 && pkt->dts == pkt->pts && pkt->dts != AV_NOPTS_VALUE && presentation_delayed){
1075 av_log(s, AV_LOG_DEBUG, "invalid dts/pts combination %"PRIi64"\n", pkt->dts);
1076 if(strcmp(s->iformat->name, "mov,mp4,m4a,3gp,3g2,mj2")) // otherwise we discard correct timestamps for vc1-wmapro.ism
1077 pkt->dts= AV_NOPTS_VALUE;
1080 if (pkt->duration == 0) {
1081 ff_compute_frame_duration(&num, &den, st, pc, pkt);
1083 pkt->duration = av_rescale_rnd(1, num * (int64_t)st->time_base.den, den * (int64_t)st->time_base.num, AV_ROUND_DOWN);
1086 if(pkt->duration != 0 && (s->packet_buffer || s->parse_queue))
1087 update_initial_durations(s, st, pkt->stream_index, pkt->duration);
1089 /* correct timestamps with byte offset if demuxers only have timestamps
1090 on packet boundaries */
1091 if(pc && st->need_parsing == AVSTREAM_PARSE_TIMESTAMPS && pkt->size){
1092 /* this will estimate bitrate based on this frame's duration and size */
1093 offset = av_rescale(pc->offset, pkt->duration, pkt->size);
1094 if(pkt->pts != AV_NOPTS_VALUE)
1096 if(pkt->dts != AV_NOPTS_VALUE)
1100 /* This may be redundant, but it should not hurt. */
1101 if(pkt->dts != AV_NOPTS_VALUE && pkt->pts != AV_NOPTS_VALUE && pkt->pts > pkt->dts)
1102 presentation_delayed = 1;
1104 av_dlog(NULL, "IN delayed:%d pts:%s, dts:%s cur_dts:%s st:%d pc:%p duration:%d\n",
1105 presentation_delayed, av_ts2str(pkt->pts), av_ts2str(pkt->dts), av_ts2str(st->cur_dts), pkt->stream_index, pc, pkt->duration);
1106 /* interpolate PTS and DTS if they are not present */
1107 //We skip H264 currently because delay and has_b_frames are not reliably set
1108 if((delay==0 || (delay==1 && pc)) && st->codec->codec_id != AV_CODEC_ID_H264){
1109 if (presentation_delayed) {
1110 /* DTS = decompression timestamp */
1111 /* PTS = presentation timestamp */
1112 if (pkt->dts == AV_NOPTS_VALUE)
1113 pkt->dts = st->last_IP_pts;
1114 update_initial_timestamps(s, pkt->stream_index, pkt->dts, pkt->pts, pkt);
1115 if (pkt->dts == AV_NOPTS_VALUE)
1116 pkt->dts = st->cur_dts;
1118 /* this is tricky: the dts must be incremented by the duration
1119 of the frame we are displaying, i.e. the last I- or P-frame */
1120 if (st->last_IP_duration == 0)
1121 st->last_IP_duration = pkt->duration;
1122 if(pkt->dts != AV_NOPTS_VALUE)
1123 st->cur_dts = pkt->dts + st->last_IP_duration;
1124 st->last_IP_duration = pkt->duration;
1125 st->last_IP_pts= pkt->pts;
1126 /* cannot compute PTS if not present (we can compute it only
1127 by knowing the future */
1128 } else if (pkt->pts != AV_NOPTS_VALUE ||
1129 pkt->dts != AV_NOPTS_VALUE ||
1131 int duration = pkt->duration;
1133 /* presentation is not delayed : PTS and DTS are the same */
1134 if (pkt->pts == AV_NOPTS_VALUE)
1135 pkt->pts = pkt->dts;
1136 update_initial_timestamps(s, pkt->stream_index, pkt->pts,
1138 if (pkt->pts == AV_NOPTS_VALUE)
1139 pkt->pts = st->cur_dts;
1140 pkt->dts = pkt->pts;
1141 if (pkt->pts != AV_NOPTS_VALUE)
1142 st->cur_dts = pkt->pts + duration;
1146 if(pkt->pts != AV_NOPTS_VALUE && delay <= MAX_REORDER_DELAY && has_decode_delay_been_guessed(st)){
1147 st->pts_buffer[0]= pkt->pts;
1148 for(i=0; i<delay && st->pts_buffer[i] > st->pts_buffer[i+1]; i++)
1149 FFSWAP(int64_t, st->pts_buffer[i], st->pts_buffer[i+1]);
1150 if(pkt->dts == AV_NOPTS_VALUE)
1151 pkt->dts= st->pts_buffer[0];
1153 if(st->codec->codec_id == AV_CODEC_ID_H264){ // we skipped it above so we try here
1154 update_initial_timestamps(s, pkt->stream_index, pkt->dts, pkt->pts, pkt); // this should happen on the first packet
1156 if(pkt->dts > st->cur_dts)
1157 st->cur_dts = pkt->dts;
1159 av_dlog(NULL, "OUTdelayed:%d/%d pts:%s, dts:%s cur_dts:%s\n",
1160 presentation_delayed, delay, av_ts2str(pkt->pts), av_ts2str(pkt->dts), av_ts2str(st->cur_dts));
1163 if (is_intra_only(st->codec))
1164 pkt->flags |= AV_PKT_FLAG_KEY;
1166 pkt->convergence_duration = pc->convergence_duration;
1169 static void free_packet_buffer(AVPacketList **pkt_buf, AVPacketList **pkt_buf_end)
1172 AVPacketList *pktl = *pkt_buf;
1173 *pkt_buf = pktl->next;
1174 av_free_packet(&pktl->pkt);
1177 *pkt_buf_end = NULL;
1181 * Parse a packet, add all split parts to parse_queue
1183 * @param pkt packet to parse, NULL when flushing the parser at end of stream
1185 static int parse_packet(AVFormatContext *s, AVPacket *pkt, int stream_index)
1187 AVPacket out_pkt = { 0 }, flush_pkt = { 0 };
1188 AVStream *st = s->streams[stream_index];
1189 uint8_t *data = pkt ? pkt->data : NULL;
1190 int size = pkt ? pkt->size : 0;
1191 int ret = 0, got_output = 0;
1194 av_init_packet(&flush_pkt);
1197 } else if (!size && st->parser->flags & PARSER_FLAG_COMPLETE_FRAMES) {
1198 // preserve 0-size sync packets
1199 compute_pkt_fields(s, st, st->parser, pkt);
1202 while (size > 0 || (pkt == &flush_pkt && got_output)) {
1205 av_init_packet(&out_pkt);
1206 len = av_parser_parse2(st->parser, st->codec,
1207 &out_pkt.data, &out_pkt.size, data, size,
1208 pkt->pts, pkt->dts, pkt->pos);
1210 pkt->pts = pkt->dts = AV_NOPTS_VALUE;
1212 /* increment read pointer */
1216 got_output = !!out_pkt.size;
1221 if (pkt->side_data) {
1222 out_pkt.side_data = pkt->side_data;
1223 out_pkt.side_data_elems = pkt->side_data_elems;
1224 pkt->side_data = NULL;
1225 pkt->side_data_elems = 0;
1228 /* set the duration */
1229 out_pkt.duration = 0;
1230 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1231 if (st->codec->sample_rate > 0) {
1232 out_pkt.duration = av_rescale_q_rnd(st->parser->duration,
1233 (AVRational){ 1, st->codec->sample_rate },
1237 } else if (st->codec->time_base.num != 0 &&
1238 st->codec->time_base.den != 0) {
1239 out_pkt.duration = av_rescale_q_rnd(st->parser->duration,
1240 st->codec->time_base,
1245 out_pkt.stream_index = st->index;
1246 out_pkt.pts = st->parser->pts;
1247 out_pkt.dts = st->parser->dts;
1248 out_pkt.pos = st->parser->pos;
1250 if(st->need_parsing == AVSTREAM_PARSE_FULL_RAW)
1251 out_pkt.pos = st->parser->frame_offset;
1253 if (st->parser->key_frame == 1 ||
1254 (st->parser->key_frame == -1 &&
1255 st->parser->pict_type == AV_PICTURE_TYPE_I))
1256 out_pkt.flags |= AV_PKT_FLAG_KEY;
1258 if(st->parser->key_frame == -1 && st->parser->pict_type==AV_PICTURE_TYPE_NONE && (pkt->flags&AV_PKT_FLAG_KEY))
1259 out_pkt.flags |= AV_PKT_FLAG_KEY;
1261 compute_pkt_fields(s, st, st->parser, &out_pkt);
1263 if (out_pkt.data == pkt->data && out_pkt.size == pkt->size) {
1264 out_pkt.buf = pkt->buf;
1266 #if FF_API_DESTRUCT_PACKET
1267 FF_DISABLE_DEPRECATION_WARNINGS
1268 out_pkt.destruct = pkt->destruct;
1269 pkt->destruct = NULL;
1270 FF_ENABLE_DEPRECATION_WARNINGS
1273 if ((ret = av_dup_packet(&out_pkt)) < 0)
1276 if (!add_to_pktbuf(&s->parse_queue, &out_pkt, &s->parse_queue_end)) {
1277 av_free_packet(&out_pkt);
1278 ret = AVERROR(ENOMEM);
1284 /* end of the stream => close and free the parser */
1285 if (pkt == &flush_pkt) {
1286 av_parser_close(st->parser);
1291 av_free_packet(pkt);
1295 static int read_from_packet_buffer(AVPacketList **pkt_buffer,
1296 AVPacketList **pkt_buffer_end,
1300 av_assert0(*pkt_buffer);
1303 *pkt_buffer = pktl->next;
1305 *pkt_buffer_end = NULL;
1310 static int read_frame_internal(AVFormatContext *s, AVPacket *pkt)
1312 int ret = 0, i, got_packet = 0;
1314 av_init_packet(pkt);
1316 while (!got_packet && !s->parse_queue) {
1320 /* read next packet */
1321 ret = ff_read_packet(s, &cur_pkt);
1323 if (ret == AVERROR(EAGAIN))
1325 /* flush the parsers */
1326 for(i = 0; i < s->nb_streams; i++) {
1328 if (st->parser && st->need_parsing)
1329 parse_packet(s, NULL, st->index);
1331 /* all remaining packets are now in parse_queue =>
1332 * really terminate parsing */
1336 st = s->streams[cur_pkt.stream_index];
1338 if (cur_pkt.pts != AV_NOPTS_VALUE &&
1339 cur_pkt.dts != AV_NOPTS_VALUE &&
1340 cur_pkt.pts < cur_pkt.dts) {
1341 av_log(s, AV_LOG_WARNING, "Invalid timestamps stream=%d, pts=%s, dts=%s, size=%d\n",
1342 cur_pkt.stream_index,
1343 av_ts2str(cur_pkt.pts),
1344 av_ts2str(cur_pkt.dts),
1347 if (s->debug & FF_FDEBUG_TS)
1348 av_log(s, AV_LOG_DEBUG, "ff_read_packet stream=%d, pts=%s, dts=%s, size=%d, duration=%d, flags=%d\n",
1349 cur_pkt.stream_index,
1350 av_ts2str(cur_pkt.pts),
1351 av_ts2str(cur_pkt.dts),
1356 if (st->need_parsing && !st->parser && !(s->flags & AVFMT_FLAG_NOPARSE)) {
1357 st->parser = av_parser_init(st->codec->codec_id);
1359 av_log(s, AV_LOG_VERBOSE, "parser not found for codec "
1360 "%s, packets or times may be invalid.\n",
1361 avcodec_get_name(st->codec->codec_id));
1362 /* no parser available: just output the raw packets */
1363 st->need_parsing = AVSTREAM_PARSE_NONE;
1364 } else if(st->need_parsing == AVSTREAM_PARSE_HEADERS) {
1365 st->parser->flags |= PARSER_FLAG_COMPLETE_FRAMES;
1366 } else if(st->need_parsing == AVSTREAM_PARSE_FULL_ONCE) {
1367 st->parser->flags |= PARSER_FLAG_ONCE;
1368 } else if(st->need_parsing == AVSTREAM_PARSE_FULL_RAW) {
1369 st->parser->flags |= PARSER_FLAG_USE_CODEC_TS;
1373 if (!st->need_parsing || !st->parser) {
1374 /* no parsing needed: we just output the packet as is */
1376 compute_pkt_fields(s, st, NULL, pkt);
1377 if ((s->iformat->flags & AVFMT_GENERIC_INDEX) &&
1378 (pkt->flags & AV_PKT_FLAG_KEY) && pkt->dts != AV_NOPTS_VALUE) {
1379 ff_reduce_index(s, st->index);
1380 av_add_index_entry(st, pkt->pos, pkt->dts, 0, 0, AVINDEX_KEYFRAME);
1383 } else if (st->discard < AVDISCARD_ALL) {
1384 if ((ret = parse_packet(s, &cur_pkt, cur_pkt.stream_index)) < 0)
1388 av_free_packet(&cur_pkt);
1390 if (pkt->flags & AV_PKT_FLAG_KEY)
1391 st->skip_to_keyframe = 0;
1392 if (st->skip_to_keyframe) {
1393 av_free_packet(&cur_pkt);
1401 if (!got_packet && s->parse_queue)
1402 ret = read_from_packet_buffer(&s->parse_queue, &s->parse_queue_end, pkt);
1405 AVStream *st = s->streams[pkt->stream_index];
1406 if (st->skip_samples) {
1407 uint8_t *p = av_packet_new_side_data(pkt, AV_PKT_DATA_SKIP_SAMPLES, 10);
1409 AV_WL32(p, st->skip_samples);
1410 av_log(s, AV_LOG_DEBUG, "demuxer injecting skip %d\n", st->skip_samples);
1412 st->skip_samples = 0;
1416 if(ret >= 0 && !(s->flags & AVFMT_FLAG_KEEP_SIDE_DATA))
1417 av_packet_merge_side_data(pkt);
1419 if(s->debug & FF_FDEBUG_TS)
1420 av_log(s, AV_LOG_DEBUG, "read_frame_internal stream=%d, pts=%s, dts=%s, size=%d, duration=%d, flags=%d\n",
1422 av_ts2str(pkt->pts),
1423 av_ts2str(pkt->dts),
1431 int av_read_frame(AVFormatContext *s, AVPacket *pkt)
1433 const int genpts = s->flags & AVFMT_FLAG_GENPTS;
1439 ret = s->packet_buffer ?
1440 read_from_packet_buffer(&s->packet_buffer, &s->packet_buffer_end, pkt) :
1441 read_frame_internal(s, pkt);
1448 AVPacketList *pktl = s->packet_buffer;
1451 AVPacket *next_pkt = &pktl->pkt;
1453 if (next_pkt->dts != AV_NOPTS_VALUE) {
1454 int wrap_bits = s->streams[next_pkt->stream_index]->pts_wrap_bits;
1455 // last dts seen for this stream. if any of packets following
1456 // current one had no dts, we will set this to AV_NOPTS_VALUE.
1457 int64_t last_dts = next_pkt->dts;
1458 while (pktl && next_pkt->pts == AV_NOPTS_VALUE) {
1459 if (pktl->pkt.stream_index == next_pkt->stream_index &&
1460 (av_compare_mod(next_pkt->dts, pktl->pkt.dts, 2LL << (wrap_bits - 1)) < 0)) {
1461 if (av_compare_mod(pktl->pkt.pts, pktl->pkt.dts, 2LL << (wrap_bits - 1))) { //not b frame
1462 next_pkt->pts = pktl->pkt.dts;
1464 if (last_dts != AV_NOPTS_VALUE) {
1465 // Once last dts was set to AV_NOPTS_VALUE, we don't change it.
1466 last_dts = pktl->pkt.dts;
1471 if (eof && next_pkt->pts == AV_NOPTS_VALUE && last_dts != AV_NOPTS_VALUE) {
1472 // Fixing the last reference frame had none pts issue (For MXF etc).
1473 // We only do this when
1475 // 2. we are not able to resolve a pts value for current packet.
1476 // 3. the packets for this stream at the end of the files had valid dts.
1477 next_pkt->pts = last_dts + next_pkt->duration;
1479 pktl = s->packet_buffer;
1482 /* read packet from packet buffer, if there is data */
1483 if (!(next_pkt->pts == AV_NOPTS_VALUE &&
1484 next_pkt->dts != AV_NOPTS_VALUE && !eof)) {
1485 ret = read_from_packet_buffer(&s->packet_buffer,
1486 &s->packet_buffer_end, pkt);
1491 ret = read_frame_internal(s, pkt);
1493 if (pktl && ret != AVERROR(EAGAIN)) {
1500 if (av_dup_packet(add_to_pktbuf(&s->packet_buffer, pkt,
1501 &s->packet_buffer_end)) < 0)
1502 return AVERROR(ENOMEM);
1507 st = s->streams[pkt->stream_index];
1508 if ((s->iformat->flags & AVFMT_GENERIC_INDEX) && pkt->flags & AV_PKT_FLAG_KEY) {
1509 ff_reduce_index(s, st->index);
1510 av_add_index_entry(st, pkt->pos, pkt->dts, 0, 0, AVINDEX_KEYFRAME);
1513 if (is_relative(pkt->dts))
1514 pkt->dts -= RELATIVE_TS_BASE;
1515 if (is_relative(pkt->pts))
1516 pkt->pts -= RELATIVE_TS_BASE;
1521 /* XXX: suppress the packet queue */
1522 static void flush_packet_queue(AVFormatContext *s)
1524 free_packet_buffer(&s->parse_queue, &s->parse_queue_end);
1525 free_packet_buffer(&s->packet_buffer, &s->packet_buffer_end);
1526 free_packet_buffer(&s->raw_packet_buffer, &s->raw_packet_buffer_end);
1528 s->raw_packet_buffer_remaining_size = RAW_PACKET_BUFFER_SIZE;
1531 /*******************************************************/
1534 int av_find_default_stream_index(AVFormatContext *s)
1536 int first_audio_index = -1;
1540 if (s->nb_streams <= 0)
1542 for(i = 0; i < s->nb_streams; i++) {
1544 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1545 !(st->disposition & AV_DISPOSITION_ATTACHED_PIC)) {
1548 if (first_audio_index < 0 && st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1549 first_audio_index = i;
1551 return first_audio_index >= 0 ? first_audio_index : 0;
1555 * Flush the frame reader.
1557 void ff_read_frame_flush(AVFormatContext *s)
1562 flush_packet_queue(s);
1564 /* for each stream, reset read state */
1565 for(i = 0; i < s->nb_streams; i++) {
1569 av_parser_close(st->parser);
1572 st->last_IP_pts = AV_NOPTS_VALUE;
1573 if(st->first_dts == AV_NOPTS_VALUE) st->cur_dts = RELATIVE_TS_BASE;
1574 else st->cur_dts = AV_NOPTS_VALUE; /* we set the current DTS to an unspecified origin */
1576 st->probe_packets = MAX_PROBE_PACKETS;
1578 for(j=0; j<MAX_REORDER_DELAY+1; j++)
1579 st->pts_buffer[j]= AV_NOPTS_VALUE;
1583 void ff_update_cur_dts(AVFormatContext *s, AVStream *ref_st, int64_t timestamp)
1587 for(i = 0; i < s->nb_streams; i++) {
1588 AVStream *st = s->streams[i];
1590 st->cur_dts = av_rescale(timestamp,
1591 st->time_base.den * (int64_t)ref_st->time_base.num,
1592 st->time_base.num * (int64_t)ref_st->time_base.den);
1596 void ff_reduce_index(AVFormatContext *s, int stream_index)
1598 AVStream *st= s->streams[stream_index];
1599 unsigned int max_entries= s->max_index_size / sizeof(AVIndexEntry);
1601 if((unsigned)st->nb_index_entries >= max_entries){
1603 for(i=0; 2*i<st->nb_index_entries; i++)
1604 st->index_entries[i]= st->index_entries[2*i];
1605 st->nb_index_entries= i;
1609 int ff_add_index_entry(AVIndexEntry **index_entries,
1610 int *nb_index_entries,
1611 unsigned int *index_entries_allocated_size,
1612 int64_t pos, int64_t timestamp, int size, int distance, int flags)
1614 AVIndexEntry *entries, *ie;
1617 if((unsigned)*nb_index_entries + 1 >= UINT_MAX / sizeof(AVIndexEntry))
1620 if(timestamp == AV_NOPTS_VALUE)
1621 return AVERROR(EINVAL);
1623 if (size < 0 || size > 0x3FFFFFFF)
1624 return AVERROR(EINVAL);
1626 if (is_relative(timestamp)) //FIXME this maintains previous behavior but we should shift by the correct offset once known
1627 timestamp -= RELATIVE_TS_BASE;
1629 entries = av_fast_realloc(*index_entries,
1630 index_entries_allocated_size,
1631 (*nb_index_entries + 1) *
1632 sizeof(AVIndexEntry));
1636 *index_entries= entries;
1638 index= ff_index_search_timestamp(*index_entries, *nb_index_entries, timestamp, AVSEEK_FLAG_ANY);
1641 index= (*nb_index_entries)++;
1642 ie= &entries[index];
1643 av_assert0(index==0 || ie[-1].timestamp < timestamp);
1645 ie= &entries[index];
1646 if(ie->timestamp != timestamp){
1647 if(ie->timestamp <= timestamp)
1649 memmove(entries + index + 1, entries + index, sizeof(AVIndexEntry)*(*nb_index_entries - index));
1650 (*nb_index_entries)++;
1651 }else if(ie->pos == pos && distance < ie->min_distance) //do not reduce the distance
1652 distance= ie->min_distance;
1656 ie->timestamp = timestamp;
1657 ie->min_distance= distance;
1664 int av_add_index_entry(AVStream *st,
1665 int64_t pos, int64_t timestamp, int size, int distance, int flags)
1667 timestamp = wrap_timestamp(st, timestamp);
1668 return ff_add_index_entry(&st->index_entries, &st->nb_index_entries,
1669 &st->index_entries_allocated_size, pos,
1670 timestamp, size, distance, flags);
1673 int ff_index_search_timestamp(const AVIndexEntry *entries, int nb_entries,
1674 int64_t wanted_timestamp, int flags)
1682 //optimize appending index entries at the end
1683 if(b && entries[b-1].timestamp < wanted_timestamp)
1688 timestamp = entries[m].timestamp;
1689 if(timestamp >= wanted_timestamp)
1691 if(timestamp <= wanted_timestamp)
1694 m= (flags & AVSEEK_FLAG_BACKWARD) ? a : b;
1696 if(!(flags & AVSEEK_FLAG_ANY)){
1697 while(m>=0 && m<nb_entries && !(entries[m].flags & AVINDEX_KEYFRAME)){
1698 m += (flags & AVSEEK_FLAG_BACKWARD) ? -1 : 1;
1707 int av_index_search_timestamp(AVStream *st, int64_t wanted_timestamp,
1710 return ff_index_search_timestamp(st->index_entries, st->nb_index_entries,
1711 wanted_timestamp, flags);
1714 static int64_t ff_read_timestamp(AVFormatContext *s, int stream_index, int64_t *ppos, int64_t pos_limit,
1715 int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t ))
1717 int64_t ts = read_timestamp(s, stream_index, ppos, pos_limit);
1718 if (stream_index >= 0)
1719 ts = wrap_timestamp(s->streams[stream_index], ts);
1723 int ff_seek_frame_binary(AVFormatContext *s, int stream_index, int64_t target_ts, int flags)
1725 AVInputFormat *avif= s->iformat;
1726 int64_t av_uninit(pos_min), av_uninit(pos_max), pos, pos_limit;
1727 int64_t ts_min, ts_max, ts;
1732 if (stream_index < 0)
1735 av_dlog(s, "read_seek: %d %s\n", stream_index, av_ts2str(target_ts));
1738 ts_min= AV_NOPTS_VALUE;
1739 pos_limit= -1; //gcc falsely says it may be uninitialized
1741 st= s->streams[stream_index];
1742 if(st->index_entries){
1745 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()
1746 index= FFMAX(index, 0);
1747 e= &st->index_entries[index];
1749 if(e->timestamp <= target_ts || e->pos == e->min_distance){
1751 ts_min= e->timestamp;
1752 av_dlog(s, "using cached pos_min=0x%"PRIx64" dts_min=%s\n",
1753 pos_min, av_ts2str(ts_min));
1755 av_assert1(index==0);
1758 index= av_index_search_timestamp(st, target_ts, flags & ~AVSEEK_FLAG_BACKWARD);
1759 av_assert0(index < st->nb_index_entries);
1761 e= &st->index_entries[index];
1762 av_assert1(e->timestamp >= target_ts);
1764 ts_max= e->timestamp;
1765 pos_limit= pos_max - e->min_distance;
1766 av_dlog(s, "using cached pos_max=0x%"PRIx64" pos_limit=0x%"PRIx64" dts_max=%s\n",
1767 pos_max, pos_limit, av_ts2str(ts_max));
1771 pos= ff_gen_search(s, stream_index, target_ts, pos_min, pos_max, pos_limit, ts_min, ts_max, flags, &ts, avif->read_timestamp);
1776 if ((ret = avio_seek(s->pb, pos, SEEK_SET)) < 0)
1779 ff_read_frame_flush(s);
1780 ff_update_cur_dts(s, st, ts);
1785 int ff_find_last_ts(AVFormatContext *s, int stream_index, int64_t *ts, int64_t *pos,
1786 int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t ))
1789 int64_t limit, ts_max;
1790 int64_t filesize = avio_size(s->pb);
1791 int64_t pos_max = filesize - 1;
1794 pos_max = FFMAX(0, (pos_max) - step);
1795 ts_max = ff_read_timestamp(s, stream_index, &pos_max, limit, read_timestamp);
1797 }while(ts_max == AV_NOPTS_VALUE && 2*limit > step);
1798 if (ts_max == AV_NOPTS_VALUE)
1802 int64_t tmp_pos = pos_max + 1;
1803 int64_t tmp_ts = ff_read_timestamp(s, stream_index, &tmp_pos, INT64_MAX, read_timestamp);
1804 if(tmp_ts == AV_NOPTS_VALUE)
1806 av_assert0(tmp_pos > pos_max);
1809 if(tmp_pos >= filesize)
1821 int64_t ff_gen_search(AVFormatContext *s, int stream_index, int64_t target_ts,
1822 int64_t pos_min, int64_t pos_max, int64_t pos_limit,
1823 int64_t ts_min, int64_t ts_max, int flags, int64_t *ts_ret,
1824 int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t ))
1831 av_dlog(s, "gen_seek: %d %s\n", stream_index, av_ts2str(target_ts));
1833 if(ts_min == AV_NOPTS_VALUE){
1834 pos_min = s->data_offset;
1835 ts_min = ff_read_timestamp(s, stream_index, &pos_min, INT64_MAX, read_timestamp);
1836 if (ts_min == AV_NOPTS_VALUE)
1840 if(ts_min >= target_ts){
1845 if(ts_max == AV_NOPTS_VALUE){
1846 if ((ret = ff_find_last_ts(s, stream_index, &ts_max, &pos_max, read_timestamp)) < 0)
1851 if(ts_max <= target_ts){
1856 if(ts_min > ts_max){
1858 }else if(ts_min == ts_max){
1863 while (pos_min < pos_limit) {
1864 av_dlog(s, "pos_min=0x%"PRIx64" pos_max=0x%"PRIx64" dts_min=%s dts_max=%s\n",
1865 pos_min, pos_max, av_ts2str(ts_min), av_ts2str(ts_max));
1866 assert(pos_limit <= pos_max);
1869 int64_t approximate_keyframe_distance= pos_max - pos_limit;
1870 // interpolate position (better than dichotomy)
1871 pos = av_rescale(target_ts - ts_min, pos_max - pos_min, ts_max - ts_min)
1872 + pos_min - approximate_keyframe_distance;
1873 }else if(no_change==1){
1874 // bisection, if interpolation failed to change min or max pos last time
1875 pos = (pos_min + pos_limit)>>1;
1877 /* linear search if bisection failed, can only happen if there
1878 are very few or no keyframes between min/max */
1883 else if(pos > pos_limit)
1887 ts = ff_read_timestamp(s, stream_index, &pos, INT64_MAX, read_timestamp); //may pass pos_limit instead of -1
1892 av_dlog(s, "%"PRId64" %"PRId64" %"PRId64" / %s %s %s target:%s limit:%"PRId64" start:%"PRId64" noc:%d\n",
1893 pos_min, pos, pos_max,
1894 av_ts2str(ts_min), av_ts2str(ts), av_ts2str(ts_max), av_ts2str(target_ts),
1895 pos_limit, start_pos, no_change);
1896 if(ts == AV_NOPTS_VALUE){
1897 av_log(s, AV_LOG_ERROR, "read_timestamp() failed in the middle\n");
1900 assert(ts != AV_NOPTS_VALUE);
1901 if (target_ts <= ts) {
1902 pos_limit = start_pos - 1;
1906 if (target_ts >= ts) {
1912 pos = (flags & AVSEEK_FLAG_BACKWARD) ? pos_min : pos_max;
1913 ts = (flags & AVSEEK_FLAG_BACKWARD) ? ts_min : ts_max;
1916 ts_min = ff_read_timestamp(s, stream_index, &pos_min, INT64_MAX, read_timestamp);
1918 ts_max = ff_read_timestamp(s, stream_index, &pos_min, INT64_MAX, read_timestamp);
1919 av_dlog(s, "pos=0x%"PRIx64" %s<=%s<=%s\n",
1920 pos, av_ts2str(ts_min), av_ts2str(target_ts), av_ts2str(ts_max));
1926 static int seek_frame_byte(AVFormatContext *s, int stream_index, int64_t pos, int flags){
1927 int64_t pos_min, pos_max;
1929 pos_min = s->data_offset;
1930 pos_max = avio_size(s->pb) - 1;
1932 if (pos < pos_min) pos= pos_min;
1933 else if(pos > pos_max) pos= pos_max;
1935 avio_seek(s->pb, pos, SEEK_SET);
1937 s->io_repositioned = 1;
1942 static int seek_frame_generic(AVFormatContext *s,
1943 int stream_index, int64_t timestamp, int flags)
1950 st = s->streams[stream_index];
1952 index = av_index_search_timestamp(st, timestamp, flags);
1954 if(index < 0 && st->nb_index_entries && timestamp < st->index_entries[0].timestamp)
1957 if(index < 0 || index==st->nb_index_entries-1){
1961 if(st->nb_index_entries){
1962 av_assert0(st->index_entries);
1963 ie= &st->index_entries[st->nb_index_entries-1];
1964 if ((ret = avio_seek(s->pb, ie->pos, SEEK_SET)) < 0)
1966 ff_update_cur_dts(s, st, ie->timestamp);
1968 if ((ret = avio_seek(s->pb, s->data_offset, SEEK_SET)) < 0)
1974 read_status = av_read_frame(s, &pkt);
1975 } while (read_status == AVERROR(EAGAIN));
1976 if (read_status < 0)
1978 av_free_packet(&pkt);
1979 if(stream_index == pkt.stream_index && pkt.dts > timestamp){
1980 if(pkt.flags & AV_PKT_FLAG_KEY)
1982 if(nonkey++ > 1000 && st->codec->codec_id != AV_CODEC_ID_CDGRAPHICS){
1983 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);
1988 index = av_index_search_timestamp(st, timestamp, flags);
1993 ff_read_frame_flush(s);
1994 if (s->iformat->read_seek){
1995 if(s->iformat->read_seek(s, stream_index, timestamp, flags) >= 0)
1998 ie = &st->index_entries[index];
1999 if ((ret = avio_seek(s->pb, ie->pos, SEEK_SET)) < 0)
2001 ff_update_cur_dts(s, st, ie->timestamp);
2006 static int seek_frame_internal(AVFormatContext *s, int stream_index,
2007 int64_t timestamp, int flags)
2012 if (flags & AVSEEK_FLAG_BYTE) {
2013 if (s->iformat->flags & AVFMT_NO_BYTE_SEEK)
2015 ff_read_frame_flush(s);
2016 return seek_frame_byte(s, stream_index, timestamp, flags);
2019 if(stream_index < 0){
2020 stream_index= av_find_default_stream_index(s);
2021 if(stream_index < 0)
2024 st= s->streams[stream_index];
2025 /* timestamp for default must be expressed in AV_TIME_BASE units */
2026 timestamp = av_rescale(timestamp, st->time_base.den, AV_TIME_BASE * (int64_t)st->time_base.num);
2029 /* first, we try the format specific seek */
2030 if (s->iformat->read_seek) {
2031 ff_read_frame_flush(s);
2032 ret = s->iformat->read_seek(s, stream_index, timestamp, flags);
2039 if (s->iformat->read_timestamp && !(s->iformat->flags & AVFMT_NOBINSEARCH)) {
2040 ff_read_frame_flush(s);
2041 return ff_seek_frame_binary(s, stream_index, timestamp, flags);
2042 } else if (!(s->iformat->flags & AVFMT_NOGENSEARCH)) {
2043 ff_read_frame_flush(s);
2044 return seek_frame_generic(s, stream_index, timestamp, flags);
2050 int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
2054 if (s->iformat->read_seek2 && !s->iformat->read_seek) {
2055 int64_t min_ts = INT64_MIN, max_ts = INT64_MAX;
2056 if ((flags & AVSEEK_FLAG_BACKWARD))
2060 return avformat_seek_file(s, stream_index, min_ts, timestamp, max_ts,
2061 flags & ~AVSEEK_FLAG_BACKWARD);
2064 ret = seek_frame_internal(s, stream_index, timestamp, flags);
2067 ret = avformat_queue_attached_pictures(s);
2072 int avformat_seek_file(AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags)
2074 if(min_ts > ts || max_ts < ts)
2076 if (stream_index < -1 || stream_index >= (int)s->nb_streams)
2077 return AVERROR(EINVAL);
2080 flags |= AVSEEK_FLAG_ANY;
2081 flags &= ~AVSEEK_FLAG_BACKWARD;
2083 if (s->iformat->read_seek2) {
2085 ff_read_frame_flush(s);
2087 if (stream_index == -1 && s->nb_streams == 1) {
2088 AVRational time_base = s->streams[0]->time_base;
2089 ts = av_rescale_q(ts, AV_TIME_BASE_Q, time_base);
2090 min_ts = av_rescale_rnd(min_ts, time_base.den,
2091 time_base.num * (int64_t)AV_TIME_BASE,
2092 AV_ROUND_UP | AV_ROUND_PASS_MINMAX);
2093 max_ts = av_rescale_rnd(max_ts, time_base.den,
2094 time_base.num * (int64_t)AV_TIME_BASE,
2095 AV_ROUND_DOWN | AV_ROUND_PASS_MINMAX);
2098 ret = s->iformat->read_seek2(s, stream_index, min_ts, ts, max_ts, flags);
2101 ret = avformat_queue_attached_pictures(s);
2105 if(s->iformat->read_timestamp){
2106 //try to seek via read_timestamp()
2109 // Fall back on old API if new is not implemented but old is.
2110 // Note the old API has somewhat different semantics.
2111 if (s->iformat->read_seek || 1) {
2112 int dir = (ts - (uint64_t)min_ts > (uint64_t)max_ts - ts ? AVSEEK_FLAG_BACKWARD : 0);
2113 int ret = av_seek_frame(s, stream_index, ts, flags | dir);
2114 if (ret<0 && ts != min_ts && max_ts != ts) {
2115 ret = av_seek_frame(s, stream_index, dir ? max_ts : min_ts, flags | dir);
2117 ret = av_seek_frame(s, stream_index, ts, flags | (dir^AVSEEK_FLAG_BACKWARD));
2122 // try some generic seek like seek_frame_generic() but with new ts semantics
2123 return -1; //unreachable
2126 /*******************************************************/
2129 * Return TRUE if the stream has accurate duration in any stream.
2131 * @return TRUE if the stream has accurate duration for at least one component.
2133 static int has_duration(AVFormatContext *ic)
2138 for(i = 0;i < ic->nb_streams; i++) {
2139 st = ic->streams[i];
2140 if (st->duration != AV_NOPTS_VALUE)
2143 if (ic->duration != AV_NOPTS_VALUE)
2149 * Estimate the stream timings from the one of each components.
2151 * Also computes the global bitrate if possible.
2153 static void update_stream_timings(AVFormatContext *ic)
2155 int64_t start_time, start_time1, start_time_text, end_time, end_time1;
2156 int64_t duration, duration1, filesize;
2161 start_time = INT64_MAX;
2162 start_time_text = INT64_MAX;
2163 end_time = INT64_MIN;
2164 duration = INT64_MIN;
2165 for(i = 0;i < ic->nb_streams; i++) {
2166 st = ic->streams[i];
2167 if (st->start_time != AV_NOPTS_VALUE && st->time_base.den) {
2168 start_time1= av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q);
2169 if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE || st->codec->codec_type == AVMEDIA_TYPE_DATA) {
2170 if (start_time1 < start_time_text)
2171 start_time_text = start_time1;
2173 start_time = FFMIN(start_time, start_time1);
2174 end_time1 = AV_NOPTS_VALUE;
2175 if (st->duration != AV_NOPTS_VALUE) {
2176 end_time1 = start_time1
2177 + av_rescale_q(st->duration, st->time_base, AV_TIME_BASE_Q);
2178 end_time = FFMAX(end_time, end_time1);
2180 for(p = NULL; (p = av_find_program_from_stream(ic, p, i)); ){
2181 if(p->start_time == AV_NOPTS_VALUE || p->start_time > start_time1)
2182 p->start_time = start_time1;
2183 if(p->end_time < end_time1)
2184 p->end_time = end_time1;
2187 if (st->duration != AV_NOPTS_VALUE) {
2188 duration1 = av_rescale_q(st->duration, st->time_base, AV_TIME_BASE_Q);
2189 duration = FFMAX(duration, duration1);
2192 if (start_time == INT64_MAX || (start_time > start_time_text && start_time - start_time_text < AV_TIME_BASE))
2193 start_time = start_time_text;
2194 else if(start_time > start_time_text)
2195 av_log(ic, AV_LOG_VERBOSE, "Ignoring outlier non primary stream starttime %f\n", start_time_text / (float)AV_TIME_BASE);
2197 if (start_time != INT64_MAX) {
2198 ic->start_time = start_time;
2199 if (end_time != INT64_MIN) {
2200 if (ic->nb_programs) {
2201 for (i=0; i<ic->nb_programs; i++) {
2202 p = ic->programs[i];
2203 if(p->start_time != AV_NOPTS_VALUE && p->end_time > p->start_time)
2204 duration = FFMAX(duration, p->end_time - p->start_time);
2207 duration = FFMAX(duration, end_time - start_time);
2210 if (duration != INT64_MIN && duration > 0 && ic->duration == AV_NOPTS_VALUE) {
2211 ic->duration = duration;
2213 if (ic->pb && (filesize = avio_size(ic->pb)) > 0 && ic->duration != AV_NOPTS_VALUE) {
2214 /* compute the bitrate */
2215 double bitrate = (double)filesize * 8.0 * AV_TIME_BASE /
2216 (double)ic->duration;
2217 if (bitrate >= 0 && bitrate <= INT_MAX)
2218 ic->bit_rate = bitrate;
2222 static void fill_all_stream_timings(AVFormatContext *ic)
2227 update_stream_timings(ic);
2228 for(i = 0;i < ic->nb_streams; i++) {
2229 st = ic->streams[i];
2230 if (st->start_time == AV_NOPTS_VALUE) {
2231 if(ic->start_time != AV_NOPTS_VALUE)
2232 st->start_time = av_rescale_q(ic->start_time, AV_TIME_BASE_Q, st->time_base);
2233 if(ic->duration != AV_NOPTS_VALUE)
2234 st->duration = av_rescale_q(ic->duration, AV_TIME_BASE_Q, st->time_base);
2239 static void estimate_timings_from_bit_rate(AVFormatContext *ic)
2241 int64_t filesize, duration;
2242 int i, show_warning = 0;
2245 /* if bit_rate is already set, we believe it */
2246 if (ic->bit_rate <= 0) {
2248 for(i=0;i<ic->nb_streams;i++) {
2249 st = ic->streams[i];
2250 if (st->codec->bit_rate > 0) {
2251 if (INT_MAX - st->codec->bit_rate < bit_rate) {
2255 bit_rate += st->codec->bit_rate;
2258 ic->bit_rate = bit_rate;
2261 /* if duration is already set, we believe it */
2262 if (ic->duration == AV_NOPTS_VALUE &&
2263 ic->bit_rate != 0) {
2264 filesize = ic->pb ? avio_size(ic->pb) : 0;
2266 for(i = 0; i < ic->nb_streams; i++) {
2267 st = ic->streams[i];
2268 if ( st->time_base.num <= INT64_MAX / ic->bit_rate
2269 && st->duration == AV_NOPTS_VALUE) {
2270 duration= av_rescale(8*filesize, st->time_base.den, ic->bit_rate*(int64_t)st->time_base.num);
2271 st->duration = duration;
2278 av_log(ic, AV_LOG_WARNING, "Estimating duration from bitrate, this may be inaccurate\n");
2281 #define DURATION_MAX_READ_SIZE 250000LL
2282 #define DURATION_MAX_RETRY 4
2284 /* only usable for MPEG-PS streams */
2285 static void estimate_timings_from_pts(AVFormatContext *ic, int64_t old_offset)
2287 AVPacket pkt1, *pkt = &pkt1;
2289 int read_size, i, ret;
2291 int64_t filesize, offset, duration;
2294 /* flush packet queue */
2295 flush_packet_queue(ic);
2297 for (i=0; i<ic->nb_streams; i++) {
2298 st = ic->streams[i];
2299 if (st->start_time == AV_NOPTS_VALUE && st->first_dts == AV_NOPTS_VALUE)
2300 av_log(st->codec, AV_LOG_WARNING, "start time is not set in estimate_timings_from_pts\n");
2303 av_parser_close(st->parser);
2308 /* estimate the end time (duration) */
2309 /* XXX: may need to support wrapping */
2310 filesize = ic->pb ? avio_size(ic->pb) : 0;
2311 end_time = AV_NOPTS_VALUE;
2313 offset = filesize - (DURATION_MAX_READ_SIZE<<retry);
2317 avio_seek(ic->pb, offset, SEEK_SET);
2320 if (read_size >= DURATION_MAX_READ_SIZE<<(FFMAX(retry-1,0)))
2324 ret = ff_read_packet(ic, pkt);
2325 } while(ret == AVERROR(EAGAIN));
2328 read_size += pkt->size;
2329 st = ic->streams[pkt->stream_index];
2330 if (pkt->pts != AV_NOPTS_VALUE &&
2331 (st->start_time != AV_NOPTS_VALUE ||
2332 st->first_dts != AV_NOPTS_VALUE)) {
2333 duration = end_time = pkt->pts;
2334 if (st->start_time != AV_NOPTS_VALUE)
2335 duration -= st->start_time;
2337 duration -= st->first_dts;
2339 if (st->duration == AV_NOPTS_VALUE || st->info->last_duration<=0 ||
2340 (st->duration < duration && FFABS(duration - st->info->last_duration) < 60LL*st->time_base.den / st->time_base.num))
2341 st->duration = duration;
2342 st->info->last_duration = duration;
2345 av_free_packet(pkt);
2347 }while( end_time==AV_NOPTS_VALUE
2348 && filesize > (DURATION_MAX_READ_SIZE<<retry)
2349 && ++retry <= DURATION_MAX_RETRY);
2351 fill_all_stream_timings(ic);
2353 avio_seek(ic->pb, old_offset, SEEK_SET);
2354 for (i=0; i<ic->nb_streams; i++) {
2356 st->cur_dts= st->first_dts;
2357 st->last_IP_pts = AV_NOPTS_VALUE;
2361 static void estimate_timings(AVFormatContext *ic, int64_t old_offset)
2365 /* get the file size, if possible */
2366 if (ic->iformat->flags & AVFMT_NOFILE) {
2369 file_size = avio_size(ic->pb);
2370 file_size = FFMAX(0, file_size);
2373 if ((!strcmp(ic->iformat->name, "mpeg") ||
2374 !strcmp(ic->iformat->name, "mpegts")) &&
2375 file_size && ic->pb->seekable) {
2376 /* get accurate estimate from the PTSes */
2377 estimate_timings_from_pts(ic, old_offset);
2378 ic->duration_estimation_method = AVFMT_DURATION_FROM_PTS;
2379 } else if (has_duration(ic)) {
2380 /* at least one component has timings - we use them for all
2382 fill_all_stream_timings(ic);
2383 ic->duration_estimation_method = AVFMT_DURATION_FROM_STREAM;
2385 /* less precise: use bitrate info */
2386 estimate_timings_from_bit_rate(ic);
2387 ic->duration_estimation_method = AVFMT_DURATION_FROM_BITRATE;
2389 update_stream_timings(ic);
2393 AVStream av_unused *st;
2394 for(i = 0;i < ic->nb_streams; i++) {
2395 st = ic->streams[i];
2396 av_dlog(ic, "%d: start_time: %0.3f duration: %0.3f\n", i,
2397 (double) st->start_time / AV_TIME_BASE,
2398 (double) st->duration / AV_TIME_BASE);
2400 av_dlog(ic, "stream: start_time: %0.3f duration: %0.3f bitrate=%d kb/s\n",
2401 (double) ic->start_time / AV_TIME_BASE,
2402 (double) ic->duration / AV_TIME_BASE,
2403 ic->bit_rate / 1000);
2407 static int has_codec_parameters(AVStream *st, const char **errmsg_ptr)
2409 AVCodecContext *avctx = st->codec;
2411 #define FAIL(errmsg) do { \
2413 *errmsg_ptr = errmsg; \
2417 switch (avctx->codec_type) {
2418 case AVMEDIA_TYPE_AUDIO:
2419 if (!avctx->frame_size && determinable_frame_size(avctx))
2420 FAIL("unspecified frame size");
2421 if (st->info->found_decoder >= 0 && avctx->sample_fmt == AV_SAMPLE_FMT_NONE)
2422 FAIL("unspecified sample format");
2423 if (!avctx->sample_rate)
2424 FAIL("unspecified sample rate");
2425 if (!avctx->channels)
2426 FAIL("unspecified number of channels");
2427 if (st->info->found_decoder >= 0 && !st->nb_decoded_frames && avctx->codec_id == AV_CODEC_ID_DTS)
2428 FAIL("no decodable DTS frames");
2430 case AVMEDIA_TYPE_VIDEO:
2432 FAIL("unspecified size");
2433 if (st->info->found_decoder >= 0 && avctx->pix_fmt == AV_PIX_FMT_NONE)
2434 FAIL("unspecified pixel format");
2435 if (st->codec->codec_id == AV_CODEC_ID_RV30 || st->codec->codec_id == AV_CODEC_ID_RV40)
2436 if (!st->sample_aspect_ratio.num && !st->codec->sample_aspect_ratio.num && !st->codec_info_nb_frames)
2437 FAIL("no frame in rv30/40 and no sar");
2439 case AVMEDIA_TYPE_SUBTITLE:
2440 if (avctx->codec_id == AV_CODEC_ID_HDMV_PGS_SUBTITLE && !avctx->width)
2441 FAIL("unspecified size");
2443 case AVMEDIA_TYPE_DATA:
2444 if(avctx->codec_id == AV_CODEC_ID_NONE) return 1;
2447 if (avctx->codec_id == AV_CODEC_ID_NONE)
2448 FAIL("unknown codec");
2452 /* returns 1 or 0 if or if not decoded data was returned, or a negative error */
2453 static int try_decode_frame(AVFormatContext *s, AVStream *st, AVPacket *avpkt, AVDictionary **options)
2455 const AVCodec *codec;
2456 int got_picture = 1, ret = 0;
2457 AVFrame *frame = av_frame_alloc();
2458 AVSubtitle subtitle;
2459 AVPacket pkt = *avpkt;
2462 return AVERROR(ENOMEM);
2464 if (!avcodec_is_open(st->codec) && !st->info->found_decoder) {
2465 AVDictionary *thread_opt = NULL;
2467 codec = find_decoder(s, st, st->codec->codec_id);
2470 st->info->found_decoder = -1;
2475 /* force thread count to 1 since the h264 decoder will not extract SPS
2476 * and PPS to extradata during multi-threaded decoding */
2477 av_dict_set(options ? options : &thread_opt, "threads", "1", 0);
2478 ret = avcodec_open2(st->codec, codec, options ? options : &thread_opt);
2480 av_dict_free(&thread_opt);
2482 st->info->found_decoder = -1;
2485 st->info->found_decoder = 1;
2486 } else if (!st->info->found_decoder)
2487 st->info->found_decoder = 1;
2489 if (st->info->found_decoder < 0) {
2494 while ((pkt.size > 0 || (!pkt.data && got_picture)) &&
2496 (!has_codec_parameters(st, NULL) ||
2497 !has_decode_delay_been_guessed(st) ||
2498 (!st->codec_info_nb_frames && st->codec->codec->capabilities & CODEC_CAP_CHANNEL_CONF))) {
2500 avcodec_get_frame_defaults(frame);
2501 switch(st->codec->codec_type) {
2502 case AVMEDIA_TYPE_VIDEO:
2503 ret = avcodec_decode_video2(st->codec, frame,
2504 &got_picture, &pkt);
2506 case AVMEDIA_TYPE_AUDIO:
2507 ret = avcodec_decode_audio4(st->codec, frame, &got_picture, &pkt);
2509 case AVMEDIA_TYPE_SUBTITLE:
2510 ret = avcodec_decode_subtitle2(st->codec, &subtitle,
2511 &got_picture, &pkt);
2519 st->nb_decoded_frames++;
2526 if(!pkt.data && !got_picture)
2530 avcodec_free_frame(&frame);
2534 unsigned int ff_codec_get_tag(const AVCodecTag *tags, enum AVCodecID id)
2536 while (tags->id != AV_CODEC_ID_NONE) {
2544 enum AVCodecID ff_codec_get_id(const AVCodecTag *tags, unsigned int tag)
2547 for(i=0; tags[i].id != AV_CODEC_ID_NONE;i++) {
2548 if(tag == tags[i].tag)
2551 for(i=0; tags[i].id != AV_CODEC_ID_NONE; i++) {
2552 if (avpriv_toupper4(tag) == avpriv_toupper4(tags[i].tag))
2555 return AV_CODEC_ID_NONE;
2558 enum AVCodecID ff_get_pcm_codec_id(int bps, int flt, int be, int sflags)
2562 case 32: return be ? AV_CODEC_ID_PCM_F32BE : AV_CODEC_ID_PCM_F32LE;
2563 case 64: return be ? AV_CODEC_ID_PCM_F64BE : AV_CODEC_ID_PCM_F64LE;
2564 default: return AV_CODEC_ID_NONE;
2569 if (sflags & (1 << (bps - 1))) {
2571 case 1: return AV_CODEC_ID_PCM_S8;
2572 case 2: return be ? AV_CODEC_ID_PCM_S16BE : AV_CODEC_ID_PCM_S16LE;
2573 case 3: return be ? AV_CODEC_ID_PCM_S24BE : AV_CODEC_ID_PCM_S24LE;
2574 case 4: return be ? AV_CODEC_ID_PCM_S32BE : AV_CODEC_ID_PCM_S32LE;
2575 default: return AV_CODEC_ID_NONE;
2579 case 1: return AV_CODEC_ID_PCM_U8;
2580 case 2: return be ? AV_CODEC_ID_PCM_U16BE : AV_CODEC_ID_PCM_U16LE;
2581 case 3: return be ? AV_CODEC_ID_PCM_U24BE : AV_CODEC_ID_PCM_U24LE;
2582 case 4: return be ? AV_CODEC_ID_PCM_U32BE : AV_CODEC_ID_PCM_U32LE;
2583 default: return AV_CODEC_ID_NONE;
2589 unsigned int av_codec_get_tag(const AVCodecTag * const *tags, enum AVCodecID id)
2592 if (!av_codec_get_tag2(tags, id, &tag))
2597 int av_codec_get_tag2(const AVCodecTag * const *tags, enum AVCodecID id,
2601 for(i=0; tags && tags[i]; i++){
2602 const AVCodecTag *codec_tags = tags[i];
2603 while (codec_tags->id != AV_CODEC_ID_NONE) {
2604 if (codec_tags->id == id) {
2605 *tag = codec_tags->tag;
2614 enum AVCodecID av_codec_get_id(const AVCodecTag * const *tags, unsigned int tag)
2617 for(i=0; tags && tags[i]; i++){
2618 enum AVCodecID id= ff_codec_get_id(tags[i], tag);
2619 if(id!=AV_CODEC_ID_NONE) return id;
2621 return AV_CODEC_ID_NONE;
2624 static void compute_chapters_end(AVFormatContext *s)
2627 int64_t max_time = s->duration + ((s->start_time == AV_NOPTS_VALUE) ? 0 : s->start_time);
2629 for (i = 0; i < s->nb_chapters; i++)
2630 if (s->chapters[i]->end == AV_NOPTS_VALUE) {
2631 AVChapter *ch = s->chapters[i];
2632 int64_t end = max_time ? av_rescale_q(max_time, AV_TIME_BASE_Q, ch->time_base)
2635 for (j = 0; j < s->nb_chapters; j++) {
2636 AVChapter *ch1 = s->chapters[j];
2637 int64_t next_start = av_rescale_q(ch1->start, ch1->time_base, ch->time_base);
2638 if (j != i && next_start > ch->start && next_start < end)
2641 ch->end = (end == INT64_MAX) ? ch->start : end;
2645 static int get_std_framerate(int i){
2646 if(i<60*12) return (i+1)*1001;
2647 else return ((const int[]){24,30,60,12,15,48})[i-60*12]*1000*12;
2651 * Is the time base unreliable.
2652 * This is a heuristic to balance between quick acceptance of the values in
2653 * the headers vs. some extra checks.
2654 * Old DivX and Xvid often have nonsense timebases like 1fps or 2fps.
2655 * MPEG-2 commonly misuses field repeat flags to store different framerates.
2656 * And there are "variable" fps files this needs to detect as well.
2658 static int tb_unreliable(AVCodecContext *c){
2659 if( c->time_base.den >= 101L*c->time_base.num
2660 || c->time_base.den < 5L*c->time_base.num
2661 /* || c->codec_tag == AV_RL32("DIVX")
2662 || c->codec_tag == AV_RL32("XVID")*/
2663 || c->codec_tag == AV_RL32("mp4v")
2664 || c->codec_id == AV_CODEC_ID_MPEG2VIDEO
2665 || c->codec_id == AV_CODEC_ID_H264
2671 #if FF_API_FORMAT_PARAMETERS
2672 int av_find_stream_info(AVFormatContext *ic)
2674 return avformat_find_stream_info(ic, NULL);
2678 int ff_alloc_extradata(AVCodecContext *avctx, int size)
2682 if (size < 0 || size >= INT32_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
2683 avctx->extradata_size = 0;
2684 return AVERROR(EINVAL);
2686 avctx->extradata = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
2687 if (avctx->extradata) {
2688 memset(avctx->extradata + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
2689 avctx->extradata_size = size;
2692 avctx->extradata_size = 0;
2693 ret = AVERROR(ENOMEM);
2698 int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
2700 int i, count, ret = 0, j;
2703 AVPacket pkt1, *pkt;
2704 int64_t old_offset = avio_tell(ic->pb);
2705 int orig_nb_streams = ic->nb_streams; // new streams might appear, no options for those
2706 int flush_codecs = ic->probesize > 0;
2709 av_log(ic, AV_LOG_DEBUG, "File position before avformat_find_stream_info() is %"PRId64"\n", avio_tell(ic->pb));
2711 for(i=0;i<ic->nb_streams;i++) {
2712 const AVCodec *codec;
2713 AVDictionary *thread_opt = NULL;
2714 st = ic->streams[i];
2716 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2717 st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2718 /* if(!st->time_base.num)
2720 if(!st->codec->time_base.num)
2721 st->codec->time_base= st->time_base;
2723 //only for the split stuff
2724 if (!st->parser && !(ic->flags & AVFMT_FLAG_NOPARSE)) {
2725 st->parser = av_parser_init(st->codec->codec_id);
2727 if(st->need_parsing == AVSTREAM_PARSE_HEADERS){
2728 st->parser->flags |= PARSER_FLAG_COMPLETE_FRAMES;
2729 } else if(st->need_parsing == AVSTREAM_PARSE_FULL_RAW) {
2730 st->parser->flags |= PARSER_FLAG_USE_CODEC_TS;
2732 } else if (st->need_parsing) {
2733 av_log(ic, AV_LOG_VERBOSE, "parser not found for codec "
2734 "%s, packets or times may be invalid.\n",
2735 avcodec_get_name(st->codec->codec_id));
2738 codec = find_decoder(ic, st, st->codec->codec_id);
2740 /* force thread count to 1 since the h264 decoder will not extract SPS
2741 * and PPS to extradata during multi-threaded decoding */
2742 av_dict_set(options ? &options[i] : &thread_opt, "threads", "1", 0);
2744 /* Ensure that subtitle_header is properly set. */
2745 if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE
2746 && codec && !st->codec->codec)
2747 avcodec_open2(st->codec, codec, options ? &options[i]
2750 //try to just open decoders, in case this is enough to get parameters
2751 if (!has_codec_parameters(st, NULL) && st->request_probe <= 0) {
2752 if (codec && !st->codec->codec)
2753 avcodec_open2(st->codec, codec, options ? &options[i]
2757 av_dict_free(&thread_opt);
2760 for (i=0; i<ic->nb_streams; i++) {
2761 #if FF_API_R_FRAME_RATE
2762 ic->streams[i]->info->last_dts = AV_NOPTS_VALUE;
2764 ic->streams[i]->info->fps_first_dts = AV_NOPTS_VALUE;
2765 ic->streams[i]->info->fps_last_dts = AV_NOPTS_VALUE;
2771 if (ff_check_interrupt(&ic->interrupt_callback)){
2773 av_log(ic, AV_LOG_DEBUG, "interrupted\n");
2777 /* check if one codec still needs to be handled */
2778 for(i=0;i<ic->nb_streams;i++) {
2779 int fps_analyze_framecount = 20;
2781 st = ic->streams[i];
2782 if (!has_codec_parameters(st, NULL))
2784 /* if the timebase is coarse (like the usual millisecond precision
2785 of mkv), we need to analyze more frames to reliably arrive at
2787 if (av_q2d(st->time_base) > 0.0005)
2788 fps_analyze_framecount *= 2;
2789 if (ic->fps_probe_size >= 0)
2790 fps_analyze_framecount = ic->fps_probe_size;
2791 if (st->disposition & AV_DISPOSITION_ATTACHED_PIC)
2792 fps_analyze_framecount = 0;
2793 /* variable fps and no guess at the real fps */
2794 if( tb_unreliable(st->codec) && !(st->r_frame_rate.num && st->avg_frame_rate.num)
2795 && st->info->duration_count < fps_analyze_framecount
2796 && st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2798 if(st->parser && st->parser->parser->split && !st->codec->extradata)
2800 if (st->first_dts == AV_NOPTS_VALUE &&
2801 (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2802 st->codec->codec_type == AVMEDIA_TYPE_AUDIO))
2805 if (i == ic->nb_streams) {
2806 /* NOTE: if the format has no header, then we need to read
2807 some packets to get most of the streams, so we cannot
2809 if (!(ic->ctx_flags & AVFMTCTX_NOHEADER)) {
2810 /* if we found the info for all the codecs, we can stop */
2812 av_log(ic, AV_LOG_DEBUG, "All info found\n");
2817 /* we did not get all the codec info, but we read too much data */
2818 if (read_size >= ic->probesize) {
2820 av_log(ic, AV_LOG_DEBUG, "Probe buffer size limit of %d bytes reached\n", ic->probesize);
2821 for (i = 0; i < ic->nb_streams; i++)
2822 if (!ic->streams[i]->r_frame_rate.num &&
2823 ic->streams[i]->info->duration_count <= 1 &&
2824 strcmp(ic->iformat->name, "image2"))
2825 av_log(ic, AV_LOG_WARNING,
2826 "Stream #%d: not enough frames to estimate rate; "
2827 "consider increasing probesize\n", i);
2831 /* NOTE: a new stream can be added there if no header in file
2832 (AVFMTCTX_NOHEADER) */
2833 ret = read_frame_internal(ic, &pkt1);
2834 if (ret == AVERROR(EAGAIN))
2842 if (ic->flags & AVFMT_FLAG_NOBUFFER)
2843 free_packet_buffer(&ic->packet_buffer, &ic->packet_buffer_end);
2845 pkt = add_to_pktbuf(&ic->packet_buffer, &pkt1,
2846 &ic->packet_buffer_end);
2848 ret = AVERROR(ENOMEM);
2849 goto find_stream_info_err;
2851 if ((ret = av_dup_packet(pkt)) < 0)
2852 goto find_stream_info_err;
2855 st = ic->streams[pkt->stream_index];
2856 if (!(st->disposition & AV_DISPOSITION_ATTACHED_PIC))
2857 read_size += pkt->size;
2859 if (pkt->dts != AV_NOPTS_VALUE && st->codec_info_nb_frames > 1) {
2860 /* check for non-increasing dts */
2861 if (st->info->fps_last_dts != AV_NOPTS_VALUE &&
2862 st->info->fps_last_dts >= pkt->dts) {
2863 av_log(ic, AV_LOG_DEBUG, "Non-increasing DTS in stream %d: "
2864 "packet %d with DTS %"PRId64", packet %d with DTS "
2865 "%"PRId64"\n", st->index, st->info->fps_last_dts_idx,
2866 st->info->fps_last_dts, st->codec_info_nb_frames, pkt->dts);
2867 st->info->fps_first_dts = st->info->fps_last_dts = AV_NOPTS_VALUE;
2869 /* check for a discontinuity in dts - if the difference in dts
2870 * is more than 1000 times the average packet duration in the sequence,
2871 * we treat it as a discontinuity */
2872 if (st->info->fps_last_dts != AV_NOPTS_VALUE &&
2873 st->info->fps_last_dts_idx > st->info->fps_first_dts_idx &&
2874 (pkt->dts - st->info->fps_last_dts) / 1000 >
2875 (st->info->fps_last_dts - st->info->fps_first_dts) / (st->info->fps_last_dts_idx - st->info->fps_first_dts_idx)) {
2876 av_log(ic, AV_LOG_WARNING, "DTS discontinuity in stream %d: "
2877 "packet %d with DTS %"PRId64", packet %d with DTS "
2878 "%"PRId64"\n", st->index, st->info->fps_last_dts_idx,
2879 st->info->fps_last_dts, st->codec_info_nb_frames, pkt->dts);
2880 st->info->fps_first_dts = st->info->fps_last_dts = AV_NOPTS_VALUE;
2883 /* update stored dts values */
2884 if (st->info->fps_first_dts == AV_NOPTS_VALUE) {
2885 st->info->fps_first_dts = pkt->dts;
2886 st->info->fps_first_dts_idx = st->codec_info_nb_frames;
2888 st->info->fps_last_dts = pkt->dts;
2889 st->info->fps_last_dts_idx = st->codec_info_nb_frames;
2891 if (st->codec_info_nb_frames>1) {
2893 if (st->time_base.den > 0)
2894 t = av_rescale_q(st->info->codec_info_duration, st->time_base, AV_TIME_BASE_Q);
2895 if (st->avg_frame_rate.num > 0)
2896 t = FFMAX(t, av_rescale_q(st->codec_info_nb_frames, av_inv_q(st->avg_frame_rate), AV_TIME_BASE_Q));
2899 && st->codec_info_nb_frames>30
2900 && st->info->fps_first_dts != AV_NOPTS_VALUE
2901 && st->info->fps_last_dts != AV_NOPTS_VALUE)
2902 t = FFMAX(t, av_rescale_q(st->info->fps_last_dts - st->info->fps_first_dts, st->time_base, AV_TIME_BASE_Q));
2904 if (t >= ic->max_analyze_duration) {
2905 av_log(ic, AV_LOG_VERBOSE, "max_analyze_duration %d reached at %"PRId64" microseconds\n", ic->max_analyze_duration, t);
2908 if (pkt->duration) {
2909 st->info->codec_info_duration += pkt->duration;
2910 st->info->codec_info_duration_fields += st->parser && st->need_parsing && st->codec->ticks_per_frame==2 ? st->parser->repeat_pict + 1 : 2;
2913 #if FF_API_R_FRAME_RATE
2915 int64_t last = st->info->last_dts;
2917 if( pkt->dts != AV_NOPTS_VALUE && last != AV_NOPTS_VALUE && pkt->dts > last
2918 && pkt->dts - (uint64_t)last < INT64_MAX){
2919 double dts= (is_relative(pkt->dts) ? pkt->dts - RELATIVE_TS_BASE : pkt->dts) * av_q2d(st->time_base);
2920 int64_t duration= pkt->dts - last;
2922 if (!st->info->duration_error)
2923 st->info->duration_error = av_mallocz(sizeof(st->info->duration_error[0])*2);
2924 if (!st->info->duration_error)
2925 return AVERROR(ENOMEM);
2927 // if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2928 // av_log(NULL, AV_LOG_ERROR, "%f\n", dts);
2929 for (i=0; i<MAX_STD_TIMEBASES; i++) {
2930 int framerate= get_std_framerate(i);
2931 double sdts= dts*framerate/(1001*12);
2933 int64_t ticks= llrint(sdts+j*0.5);
2934 double error= sdts - ticks + j*0.5;
2935 st->info->duration_error[j][0][i] += error;
2936 st->info->duration_error[j][1][i] += error*error;
2939 st->info->duration_count++;
2940 // ignore the first 4 values, they might have some random jitter
2941 if (st->info->duration_count > 3 && is_relative(pkt->dts) == is_relative(last))
2942 st->info->duration_gcd = av_gcd(st->info->duration_gcd, duration);
2944 if (pkt->dts != AV_NOPTS_VALUE)
2945 st->info->last_dts = pkt->dts;
2948 if(st->parser && st->parser->parser->split && !st->codec->extradata){
2949 int i= st->parser->parser->split(st->codec, pkt->data, pkt->size);
2950 if (i > 0 && i < FF_MAX_EXTRADATA_SIZE) {
2951 if (ff_alloc_extradata(st->codec, i))
2952 return AVERROR(ENOMEM);
2953 memcpy(st->codec->extradata, pkt->data, st->codec->extradata_size);
2957 /* if still no information, we try to open the codec and to
2958 decompress the frame. We try to avoid that in most cases as
2959 it takes longer and uses more memory. For MPEG-4, we need to
2960 decompress for QuickTime.
2962 If CODEC_CAP_CHANNEL_CONF is set this will force decoding of at
2963 least one frame of codec data, this makes sure the codec initializes
2964 the channel configuration and does not only trust the values from the container.
2966 try_decode_frame(ic, st, pkt, (options && i < orig_nb_streams ) ? &options[i] : NULL);
2968 st->codec_info_nb_frames++;
2973 AVPacket empty_pkt = { 0 };
2975 av_init_packet(&empty_pkt);
2977 for(i=0;i<ic->nb_streams;i++) {
2979 st = ic->streams[i];
2981 /* flush the decoders */
2982 if (st->info->found_decoder == 1) {
2984 err = try_decode_frame(ic, st, &empty_pkt,
2985 (options && i < orig_nb_streams) ?
2986 &options[i] : NULL);
2987 } while (err > 0 && !has_codec_parameters(st, NULL));
2990 av_log(ic, AV_LOG_INFO,
2991 "decoding for stream %d failed\n", st->index);
2997 // close codecs which were opened in try_decode_frame()
2998 for(i=0;i<ic->nb_streams;i++) {
2999 st = ic->streams[i];
3000 avcodec_close(st->codec);
3002 for(i=0;i<ic->nb_streams;i++) {
3003 st = ic->streams[i];
3004 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
3005 if(st->codec->codec_id == AV_CODEC_ID_RAWVIDEO && !st->codec->codec_tag && !st->codec->bits_per_coded_sample){
3006 uint32_t tag= avcodec_pix_fmt_to_codec_tag(st->codec->pix_fmt);
3007 if (avpriv_find_pix_fmt(ff_raw_pix_fmt_tags, tag) == st->codec->pix_fmt)
3008 st->codec->codec_tag= tag;
3011 /* estimate average framerate if not set by demuxer */
3012 if (st->info->codec_info_duration_fields && !st->avg_frame_rate.num && st->info->codec_info_duration) {
3014 double best_error = 0.01;
3016 if (st->info->codec_info_duration >= INT64_MAX / st->time_base.num / 2||
3017 st->info->codec_info_duration_fields >= INT64_MAX / st->time_base.den ||
3018 st->info->codec_info_duration < 0)
3020 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
3021 st->info->codec_info_duration_fields*(int64_t)st->time_base.den,
3022 st->info->codec_info_duration*2*(int64_t)st->time_base.num, 60000);
3024 /* round guessed framerate to a "standard" framerate if it's
3025 * within 1% of the original estimate*/
3026 for (j = 1; j < MAX_STD_TIMEBASES; j++) {
3027 AVRational std_fps = { get_std_framerate(j), 12*1001 };
3028 double error = fabs(av_q2d(st->avg_frame_rate) / av_q2d(std_fps) - 1);
3030 if (error < best_error) {
3032 best_fps = std_fps.num;
3036 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
3037 best_fps, 12*1001, INT_MAX);
3040 // the check for tb_unreliable() is not completely correct, since this is not about handling
3041 // a unreliable/inexact time base, but a time base that is finer than necessary, as e.g.
3042 // ipmovie.c produces.
3043 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)
3044 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);
3045 if (st->info->duration_count>1 && !st->r_frame_rate.num
3046 && tb_unreliable(st->codec)) {
3048 double best_error= 0.01;
3050 for (j=0; j<MAX_STD_TIMEBASES; j++) {
3053 if(st->info->codec_info_duration && st->info->codec_info_duration*av_q2d(st->time_base) < (1001*12.0)/get_std_framerate(j))
3055 if(!st->info->codec_info_duration && 1.0 < (1001*12.0)/get_std_framerate(j))
3058 int n= st->info->duration_count;
3059 double a= st->info->duration_error[k][0][j] / n;
3060 double error= st->info->duration_error[k][1][j]/n - a*a;
3062 if(error < best_error && best_error> 0.000000001){
3064 num = get_std_framerate(j);
3067 av_log(NULL, AV_LOG_DEBUG, "rfps: %f %f\n", get_std_framerate(j) / 12.0/1001, error);
3070 // do not increase frame rate by more than 1 % in order to match a standard rate.
3071 if (num && (!st->r_frame_rate.num || (double)num/(12*1001) < 1.01 * av_q2d(st->r_frame_rate)))
3072 av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den, num, 12*1001, INT_MAX);
3075 if (!st->r_frame_rate.num){
3076 if( st->codec->time_base.den * (int64_t)st->time_base.num
3077 <= st->codec->time_base.num * st->codec->ticks_per_frame * (int64_t)st->time_base.den){
3078 st->r_frame_rate.num = st->codec->time_base.den;
3079 st->r_frame_rate.den = st->codec->time_base.num * st->codec->ticks_per_frame;
3081 st->r_frame_rate.num = st->time_base.den;
3082 st->r_frame_rate.den = st->time_base.num;
3085 }else if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3086 if(!st->codec->bits_per_coded_sample)
3087 st->codec->bits_per_coded_sample= av_get_bits_per_sample(st->codec->codec_id);
3088 // set stream disposition based on audio service type
3089 switch (st->codec->audio_service_type) {
3090 case AV_AUDIO_SERVICE_TYPE_EFFECTS:
3091 st->disposition = AV_DISPOSITION_CLEAN_EFFECTS; break;
3092 case AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED:
3093 st->disposition = AV_DISPOSITION_VISUAL_IMPAIRED; break;
3094 case AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED:
3095 st->disposition = AV_DISPOSITION_HEARING_IMPAIRED; break;
3096 case AV_AUDIO_SERVICE_TYPE_COMMENTARY:
3097 st->disposition = AV_DISPOSITION_COMMENT; break;
3098 case AV_AUDIO_SERVICE_TYPE_KARAOKE:
3099 st->disposition = AV_DISPOSITION_KARAOKE; break;
3105 estimate_timings(ic, old_offset);
3107 if (ret >= 0 && ic->nb_streams)
3108 ret = -1; /* we could not have all the codec parameters before EOF */
3109 for(i=0;i<ic->nb_streams;i++) {
3111 st = ic->streams[i];
3112 if (!has_codec_parameters(st, &errmsg)) {
3114 avcodec_string(buf, sizeof(buf), st->codec, 0);
3115 av_log(ic, AV_LOG_WARNING,
3116 "Could not find codec parameters for stream %d (%s): %s\n"
3117 "Consider increasing the value for the 'analyzeduration' and 'probesize' options\n",
3124 compute_chapters_end(ic);
3126 find_stream_info_err:
3127 for (i=0; i < ic->nb_streams; i++) {
3128 st = ic->streams[i];
3129 if (ic->streams[i]->codec && ic->streams[i]->codec->codec_type != AVMEDIA_TYPE_AUDIO)
3130 ic->streams[i]->codec->thread_count = 0;
3132 av_freep(&st->info->duration_error);
3133 av_freep(&ic->streams[i]->info);
3136 av_log(ic, AV_LOG_DEBUG, "File position after avformat_find_stream_info() is %"PRId64"\n", avio_tell(ic->pb));
3140 AVProgram *av_find_program_from_stream(AVFormatContext *ic, AVProgram *last, int s)
3144 for (i = 0; i < ic->nb_programs; i++) {
3145 if (ic->programs[i] == last) {
3149 for (j = 0; j < ic->programs[i]->nb_stream_indexes; j++)
3150 if (ic->programs[i]->stream_index[j] == s)
3151 return ic->programs[i];
3157 int av_find_best_stream(AVFormatContext *ic,
3158 enum AVMediaType type,
3159 int wanted_stream_nb,
3161 AVCodec **decoder_ret,
3164 int i, nb_streams = ic->nb_streams;
3165 int ret = AVERROR_STREAM_NOT_FOUND, best_count = -1, best_bitrate = -1, best_multiframe = -1, count, bitrate, multiframe;
3166 unsigned *program = NULL;
3167 AVCodec *decoder = NULL, *best_decoder = NULL;
3169 if (related_stream >= 0 && wanted_stream_nb < 0) {
3170 AVProgram *p = av_find_program_from_stream(ic, NULL, related_stream);
3172 program = p->stream_index;
3173 nb_streams = p->nb_stream_indexes;
3176 for (i = 0; i < nb_streams; i++) {
3177 int real_stream_index = program ? program[i] : i;
3178 AVStream *st = ic->streams[real_stream_index];
3179 AVCodecContext *avctx = st->codec;
3180 if (avctx->codec_type != type)
3182 if (wanted_stream_nb >= 0 && real_stream_index != wanted_stream_nb)
3184 if (st->disposition & (AV_DISPOSITION_HEARING_IMPAIRED|AV_DISPOSITION_VISUAL_IMPAIRED))
3187 decoder = find_decoder(ic, st, st->codec->codec_id);
3190 ret = AVERROR_DECODER_NOT_FOUND;
3194 count = st->codec_info_nb_frames;
3195 bitrate = avctx->bit_rate;
3196 multiframe = FFMIN(5, count);
3197 if ((best_multiframe > multiframe) ||
3198 (best_multiframe == multiframe && best_bitrate > bitrate) ||
3199 (best_multiframe == multiframe && best_bitrate == bitrate && best_count >= count))
3202 best_bitrate = bitrate;
3203 best_multiframe = multiframe;
3204 ret = real_stream_index;
3205 best_decoder = decoder;
3206 if (program && i == nb_streams - 1 && ret < 0) {
3208 nb_streams = ic->nb_streams;
3209 i = 0; /* no related stream found, try again with everything */
3213 *decoder_ret = best_decoder;
3217 /*******************************************************/
3219 int av_read_play(AVFormatContext *s)
3221 if (s->iformat->read_play)
3222 return s->iformat->read_play(s);
3224 return avio_pause(s->pb, 0);
3225 return AVERROR(ENOSYS);
3228 int av_read_pause(AVFormatContext *s)
3230 if (s->iformat->read_pause)
3231 return s->iformat->read_pause(s);
3233 return avio_pause(s->pb, 1);
3234 return AVERROR(ENOSYS);
3237 void ff_free_stream(AVFormatContext *s, AVStream *st){
3238 av_assert0(s->nb_streams>0);
3239 av_assert0(s->streams[ s->nb_streams-1 ] == st);
3242 av_parser_close(st->parser);
3244 if (st->attached_pic.data)
3245 av_free_packet(&st->attached_pic);
3246 av_dict_free(&st->metadata);
3247 av_freep(&st->probe_data.buf);
3248 av_freep(&st->index_entries);
3249 av_freep(&st->codec->extradata);
3250 av_freep(&st->codec->subtitle_header);
3251 av_freep(&st->codec);
3252 av_freep(&st->priv_data);
3254 av_freep(&st->info->duration_error);
3255 av_freep(&st->info);
3256 av_freep(&s->streams[ --s->nb_streams ]);
3259 void avformat_free_context(AVFormatContext *s)
3267 if (s->iformat && s->iformat->priv_class && s->priv_data)
3268 av_opt_free(s->priv_data);
3270 for(i=s->nb_streams-1; i>=0; i--) {
3271 ff_free_stream(s, s->streams[i]);
3273 for(i=s->nb_programs-1; i>=0; i--) {
3274 av_dict_free(&s->programs[i]->metadata);
3275 av_freep(&s->programs[i]->stream_index);
3276 av_freep(&s->programs[i]);
3278 av_freep(&s->programs);
3279 av_freep(&s->priv_data);
3280 while(s->nb_chapters--) {
3281 av_dict_free(&s->chapters[s->nb_chapters]->metadata);
3282 av_freep(&s->chapters[s->nb_chapters]);
3284 av_freep(&s->chapters);
3285 av_dict_free(&s->metadata);
3286 av_freep(&s->streams);
3290 #if FF_API_CLOSE_INPUT_FILE
3291 void av_close_input_file(AVFormatContext *s)
3293 avformat_close_input(&s);
3297 void avformat_close_input(AVFormatContext **ps)
3308 if ((s->iformat && s->iformat->flags & AVFMT_NOFILE) ||
3309 (s->flags & AVFMT_FLAG_CUSTOM_IO))
3312 flush_packet_queue(s);
3315 if (s->iformat->read_close)
3316 s->iformat->read_close(s);
3319 avformat_free_context(s);
3326 #if FF_API_NEW_STREAM
3327 AVStream *av_new_stream(AVFormatContext *s, int id)
3329 AVStream *st = avformat_new_stream(s, NULL);
3336 AVStream *avformat_new_stream(AVFormatContext *s, const AVCodec *c)
3342 if (s->nb_streams >= INT_MAX/sizeof(*streams))
3344 streams = av_realloc_array(s->streams, s->nb_streams + 1, sizeof(*streams));
3347 s->streams = streams;
3349 st = av_mallocz(sizeof(AVStream));
3352 if (!(st->info = av_mallocz(sizeof(*st->info)))) {
3356 st->info->last_dts = AV_NOPTS_VALUE;
3358 st->codec = avcodec_alloc_context3(c);
3360 /* no default bitrate if decoding */
3361 st->codec->bit_rate = 0;
3363 st->index = s->nb_streams;
3364 st->start_time = AV_NOPTS_VALUE;
3365 st->duration = AV_NOPTS_VALUE;
3366 /* we set the current DTS to 0 so that formats without any timestamps
3367 but durations get some timestamps, formats with some unknown
3368 timestamps have their first few packets buffered and the
3369 timestamps corrected before they are returned to the user */
3370 st->cur_dts = s->iformat ? RELATIVE_TS_BASE : 0;
3371 st->first_dts = AV_NOPTS_VALUE;
3372 st->probe_packets = MAX_PROBE_PACKETS;
3373 st->pts_wrap_reference = AV_NOPTS_VALUE;
3374 st->pts_wrap_behavior = AV_PTS_WRAP_IGNORE;
3376 /* default pts setting is MPEG-like */
3377 avpriv_set_pts_info(st, 33, 1, 90000);
3378 st->last_IP_pts = AV_NOPTS_VALUE;
3379 for(i=0; i<MAX_REORDER_DELAY+1; i++)
3380 st->pts_buffer[i]= AV_NOPTS_VALUE;
3382 st->sample_aspect_ratio = (AVRational){0,1};
3384 #if FF_API_R_FRAME_RATE
3385 st->info->last_dts = AV_NOPTS_VALUE;
3387 st->info->fps_first_dts = AV_NOPTS_VALUE;
3388 st->info->fps_last_dts = AV_NOPTS_VALUE;
3390 s->streams[s->nb_streams++] = st;
3394 AVProgram *av_new_program(AVFormatContext *ac, int id)
3396 AVProgram *program=NULL;
3399 av_dlog(ac, "new_program: id=0x%04x\n", id);
3401 for(i=0; i<ac->nb_programs; i++)
3402 if(ac->programs[i]->id == id)
3403 program = ac->programs[i];
3406 program = av_mallocz(sizeof(AVProgram));
3409 dynarray_add(&ac->programs, &ac->nb_programs, program);
3410 program->discard = AVDISCARD_NONE;
3413 program->pts_wrap_reference = AV_NOPTS_VALUE;
3414 program->pts_wrap_behavior = AV_PTS_WRAP_IGNORE;
3416 program->start_time =
3417 program->end_time = AV_NOPTS_VALUE;
3422 AVChapter *avpriv_new_chapter(AVFormatContext *s, int id, AVRational time_base, int64_t start, int64_t end, const char *title)
3424 AVChapter *chapter = NULL;
3427 for(i=0; i<s->nb_chapters; i++)
3428 if(s->chapters[i]->id == id)
3429 chapter = s->chapters[i];
3432 chapter= av_mallocz(sizeof(AVChapter));
3435 dynarray_add(&s->chapters, &s->nb_chapters, chapter);
3437 av_dict_set(&chapter->metadata, "title", title, 0);
3439 chapter->time_base= time_base;
3440 chapter->start = start;
3446 void ff_program_add_stream_index(AVFormatContext *ac, int progid, unsigned int idx)
3449 AVProgram *program=NULL;
3452 if (idx >= ac->nb_streams) {
3453 av_log(ac, AV_LOG_ERROR, "stream index %d is not valid\n", idx);
3457 for(i=0; i<ac->nb_programs; i++){
3458 if(ac->programs[i]->id != progid)
3460 program = ac->programs[i];
3461 for(j=0; j<program->nb_stream_indexes; j++)
3462 if(program->stream_index[j] == idx)
3465 tmp = av_realloc_array(program->stream_index, program->nb_stream_indexes+1, sizeof(unsigned int));
3468 program->stream_index = tmp;
3469 program->stream_index[program->nb_stream_indexes++] = idx;
3474 static void print_fps(double d, const char *postfix){
3475 uint64_t v= lrintf(d*100);
3476 if (v% 100 ) av_log(NULL, AV_LOG_INFO, ", %3.2f %s", d, postfix);
3477 else if(v%(100*1000)) av_log(NULL, AV_LOG_INFO, ", %1.0f %s", d, postfix);
3478 else av_log(NULL, AV_LOG_INFO, ", %1.0fk %s", d/1000, postfix);
3481 static void dump_metadata(void *ctx, AVDictionary *m, const char *indent)
3483 if(m && !(av_dict_count(m) == 1 && av_dict_get(m, "language", NULL, 0))){
3484 AVDictionaryEntry *tag=NULL;
3486 av_log(ctx, AV_LOG_INFO, "%sMetadata:\n", indent);
3487 while((tag=av_dict_get(m, "", tag, AV_DICT_IGNORE_SUFFIX))) {
3488 if(strcmp("language", tag->key)){
3489 const char *p = tag->value;
3490 av_log(ctx, AV_LOG_INFO, "%s %-16s: ", indent, tag->key);
3493 size_t len = strcspn(p, "\x8\xa\xb\xc\xd");
3494 av_strlcpy(tmp, p, FFMIN(sizeof(tmp), len+1));
3495 av_log(ctx, AV_LOG_INFO, "%s", tmp);
3497 if (*p == 0xd) av_log(ctx, AV_LOG_INFO, " ");
3498 if (*p == 0xa) av_log(ctx, AV_LOG_INFO, "\n%s %-16s: ", indent, "");
3501 av_log(ctx, AV_LOG_INFO, "\n");
3507 /* "user interface" functions */
3508 static void dump_stream_format(AVFormatContext *ic, int i, int index, int is_output)
3511 int flags = (is_output ? ic->oformat->flags : ic->iformat->flags);
3512 AVStream *st = ic->streams[i];
3513 int g = av_gcd(st->time_base.num, st->time_base.den);
3514 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL, 0);
3515 avcodec_string(buf, sizeof(buf), st->codec, is_output);
3516 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d", index, i);
3517 /* the pid is an important information, so we display it */
3518 /* XXX: add a generic system */
3519 if (flags & AVFMT_SHOW_IDS)
3520 av_log(NULL, AV_LOG_INFO, "[0x%x]", st->id);
3522 av_log(NULL, AV_LOG_INFO, "(%s)", lang->value);
3523 av_log(NULL, AV_LOG_DEBUG, ", %d, %d/%d", st->codec_info_nb_frames, st->time_base.num/g, st->time_base.den/g);
3524 av_log(NULL, AV_LOG_INFO, ": %s", buf);
3525 if (st->sample_aspect_ratio.num && // default
3526 av_cmp_q(st->sample_aspect_ratio, st->codec->sample_aspect_ratio)) {
3527 AVRational display_aspect_ratio;
3528 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
3529 st->codec->width*st->sample_aspect_ratio.num,
3530 st->codec->height*st->sample_aspect_ratio.den,
3532 av_log(NULL, AV_LOG_INFO, ", SAR %d:%d DAR %d:%d",
3533 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
3534 display_aspect_ratio.num, display_aspect_ratio.den);
3536 if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO){
3537 if(st->avg_frame_rate.den && st->avg_frame_rate.num)
3538 print_fps(av_q2d(st->avg_frame_rate), "fps");
3539 #if FF_API_R_FRAME_RATE
3540 if(st->r_frame_rate.den && st->r_frame_rate.num)
3541 print_fps(av_q2d(st->r_frame_rate), "tbr");
3543 if(st->time_base.den && st->time_base.num)
3544 print_fps(1/av_q2d(st->time_base), "tbn");
3545 if(st->codec->time_base.den && st->codec->time_base.num)
3546 print_fps(1/av_q2d(st->codec->time_base), "tbc");
3548 if (st->disposition & AV_DISPOSITION_DEFAULT)
3549 av_log(NULL, AV_LOG_INFO, " (default)");
3550 if (st->disposition & AV_DISPOSITION_DUB)
3551 av_log(NULL, AV_LOG_INFO, " (dub)");
3552 if (st->disposition & AV_DISPOSITION_ORIGINAL)
3553 av_log(NULL, AV_LOG_INFO, " (original)");
3554 if (st->disposition & AV_DISPOSITION_COMMENT)
3555 av_log(NULL, AV_LOG_INFO, " (comment)");
3556 if (st->disposition & AV_DISPOSITION_LYRICS)
3557 av_log(NULL, AV_LOG_INFO, " (lyrics)");
3558 if (st->disposition & AV_DISPOSITION_KARAOKE)
3559 av_log(NULL, AV_LOG_INFO, " (karaoke)");
3560 if (st->disposition & AV_DISPOSITION_FORCED)
3561 av_log(NULL, AV_LOG_INFO, " (forced)");
3562 if (st->disposition & AV_DISPOSITION_HEARING_IMPAIRED)
3563 av_log(NULL, AV_LOG_INFO, " (hearing impaired)");
3564 if (st->disposition & AV_DISPOSITION_VISUAL_IMPAIRED)
3565 av_log(NULL, AV_LOG_INFO, " (visual impaired)");
3566 if (st->disposition & AV_DISPOSITION_CLEAN_EFFECTS)
3567 av_log(NULL, AV_LOG_INFO, " (clean effects)");
3568 av_log(NULL, AV_LOG_INFO, "\n");
3569 dump_metadata(NULL, st->metadata, " ");
3572 void av_dump_format(AVFormatContext *ic,
3578 uint8_t *printed = ic->nb_streams ? av_mallocz(ic->nb_streams) : NULL;
3579 if (ic->nb_streams && !printed)
3582 av_log(NULL, AV_LOG_INFO, "%s #%d, %s, %s '%s':\n",
3583 is_output ? "Output" : "Input",
3585 is_output ? ic->oformat->name : ic->iformat->name,
3586 is_output ? "to" : "from", url);
3587 dump_metadata(NULL, ic->metadata, " ");
3589 av_log(NULL, AV_LOG_INFO, " Duration: ");
3590 if (ic->duration != AV_NOPTS_VALUE) {
3591 int hours, mins, secs, us;
3592 int64_t duration = ic->duration + 5000;
3593 secs = duration / AV_TIME_BASE;
3594 us = duration % AV_TIME_BASE;
3599 av_log(NULL, AV_LOG_INFO, "%02d:%02d:%02d.%02d", hours, mins, secs,
3600 (100 * us) / AV_TIME_BASE);
3602 av_log(NULL, AV_LOG_INFO, "N/A");
3604 if (ic->start_time != AV_NOPTS_VALUE) {
3606 av_log(NULL, AV_LOG_INFO, ", start: ");
3607 secs = ic->start_time / AV_TIME_BASE;
3608 us = abs(ic->start_time % AV_TIME_BASE);
3609 av_log(NULL, AV_LOG_INFO, "%d.%06d",
3610 secs, (int)av_rescale(us, 1000000, AV_TIME_BASE));
3612 av_log(NULL, AV_LOG_INFO, ", bitrate: ");
3614 av_log(NULL, AV_LOG_INFO,"%d kb/s", ic->bit_rate / 1000);
3616 av_log(NULL, AV_LOG_INFO, "N/A");
3618 av_log(NULL, AV_LOG_INFO, "\n");
3620 for (i = 0; i < ic->nb_chapters; i++) {
3621 AVChapter *ch = ic->chapters[i];
3622 av_log(NULL, AV_LOG_INFO, " Chapter #%d.%d: ", index, i);
3623 av_log(NULL, AV_LOG_INFO, "start %f, ", ch->start * av_q2d(ch->time_base));
3624 av_log(NULL, AV_LOG_INFO, "end %f\n", ch->end * av_q2d(ch->time_base));
3626 dump_metadata(NULL, ch->metadata, " ");
3628 if(ic->nb_programs) {
3629 int j, k, total = 0;
3630 for(j=0; j<ic->nb_programs; j++) {
3631 AVDictionaryEntry *name = av_dict_get(ic->programs[j]->metadata,
3633 av_log(NULL, AV_LOG_INFO, " Program %d %s\n", ic->programs[j]->id,
3634 name ? name->value : "");
3635 dump_metadata(NULL, ic->programs[j]->metadata, " ");
3636 for(k=0; k<ic->programs[j]->nb_stream_indexes; k++) {
3637 dump_stream_format(ic, ic->programs[j]->stream_index[k], index, is_output);
3638 printed[ic->programs[j]->stream_index[k]] = 1;
3640 total += ic->programs[j]->nb_stream_indexes;
3642 if (total < ic->nb_streams)
3643 av_log(NULL, AV_LOG_INFO, " No Program\n");
3645 for(i=0;i<ic->nb_streams;i++)
3647 dump_stream_format(ic, i, index, is_output);
3652 uint64_t ff_ntp_time(void)
3654 return (av_gettime() / 1000) * 1000 + NTP_OFFSET_US;
3657 int av_get_frame_filename(char *buf, int buf_size,
3658 const char *path, int number)
3661 char *q, buf1[20], c;
3662 int nd, len, percentd_found;
3674 while (av_isdigit(*p)) {
3675 nd = nd * 10 + *p++ - '0';
3678 } while (av_isdigit(c));
3687 snprintf(buf1, sizeof(buf1), "%0*d", nd, number);
3689 if ((q - buf + len) > buf_size - 1)
3691 memcpy(q, buf1, len);
3699 if ((q - buf) < buf_size - 1)
3703 if (!percentd_found)
3712 static void hex_dump_internal(void *avcl, FILE *f, int level,
3713 const uint8_t *buf, int size)
3716 #define PRINT(...) do { if (!f) av_log(avcl, level, __VA_ARGS__); else fprintf(f, __VA_ARGS__); } while(0)
3718 for(i=0;i<size;i+=16) {
3725 PRINT(" %02x", buf[i+j]);
3730 for(j=0;j<len;j++) {
3732 if (c < ' ' || c > '~')
3741 void av_hex_dump(FILE *f, const uint8_t *buf, int size)
3743 hex_dump_internal(NULL, f, 0, buf, size);
3746 void av_hex_dump_log(void *avcl, int level, const uint8_t *buf, int size)
3748 hex_dump_internal(avcl, NULL, level, buf, size);
3751 static void pkt_dump_internal(void *avcl, FILE *f, int level, AVPacket *pkt, int dump_payload, AVRational time_base)
3753 #define PRINT(...) do { if (!f) av_log(avcl, level, __VA_ARGS__); else fprintf(f, __VA_ARGS__); } while(0)
3754 PRINT("stream #%d:\n", pkt->stream_index);
3755 PRINT(" keyframe=%d\n", ((pkt->flags & AV_PKT_FLAG_KEY) != 0));
3756 PRINT(" duration=%0.3f\n", pkt->duration * av_q2d(time_base));
3757 /* DTS is _always_ valid after av_read_frame() */
3759 if (pkt->dts == AV_NOPTS_VALUE)
3762 PRINT("%0.3f", pkt->dts * av_q2d(time_base));
3763 /* PTS may not be known if B-frames are present. */
3765 if (pkt->pts == AV_NOPTS_VALUE)
3768 PRINT("%0.3f", pkt->pts * av_q2d(time_base));
3770 PRINT(" size=%d\n", pkt->size);
3773 av_hex_dump(f, pkt->data, pkt->size);
3776 void av_pkt_dump2(FILE *f, AVPacket *pkt, int dump_payload, AVStream *st)
3778 pkt_dump_internal(NULL, f, 0, pkt, dump_payload, st->time_base);
3781 void av_pkt_dump_log2(void *avcl, int level, AVPacket *pkt, int dump_payload,
3784 pkt_dump_internal(avcl, NULL, level, pkt, dump_payload, st->time_base);
3787 void av_url_split(char *proto, int proto_size,
3788 char *authorization, int authorization_size,
3789 char *hostname, int hostname_size,
3791 char *path, int path_size,
3794 const char *p, *ls, *ls2, *at, *at2, *col, *brk;
3796 if (port_ptr) *port_ptr = -1;
3797 if (proto_size > 0) proto[0] = 0;
3798 if (authorization_size > 0) authorization[0] = 0;
3799 if (hostname_size > 0) hostname[0] = 0;
3800 if (path_size > 0) path[0] = 0;
3802 /* parse protocol */
3803 if ((p = strchr(url, ':'))) {
3804 av_strlcpy(proto, url, FFMIN(proto_size, p + 1 - url));
3809 /* no protocol means plain filename */
3810 av_strlcpy(path, url, path_size);
3814 /* separate path from hostname */
3815 ls = strchr(p, '/');
3816 ls2 = strchr(p, '?');
3820 ls = FFMIN(ls, ls2);
3822 av_strlcpy(path, ls, path_size);
3824 ls = &p[strlen(p)]; // XXX
3826 /* the rest is hostname, use that to parse auth/port */
3828 /* authorization (user[:pass]@hostname) */
3830 while ((at = strchr(p, '@')) && at < ls) {
3831 av_strlcpy(authorization, at2,
3832 FFMIN(authorization_size, at + 1 - at2));
3833 p = at + 1; /* skip '@' */
3836 if (*p == '[' && (brk = strchr(p, ']')) && brk < ls) {
3838 av_strlcpy(hostname, p + 1,
3839 FFMIN(hostname_size, brk - p));
3840 if (brk[1] == ':' && port_ptr)
3841 *port_ptr = atoi(brk + 2);
3842 } else if ((col = strchr(p, ':')) && col < ls) {
3843 av_strlcpy(hostname, p,
3844 FFMIN(col + 1 - p, hostname_size));
3845 if (port_ptr) *port_ptr = atoi(col + 1);
3847 av_strlcpy(hostname, p,
3848 FFMIN(ls + 1 - p, hostname_size));
3852 char *ff_data_to_hex(char *buff, const uint8_t *src, int s, int lowercase)
3855 static const char hex_table_uc[16] = { '0', '1', '2', '3',
3858 'C', 'D', 'E', 'F' };
3859 static const char hex_table_lc[16] = { '0', '1', '2', '3',
3862 'c', 'd', 'e', 'f' };
3863 const char *hex_table = lowercase ? hex_table_lc : hex_table_uc;
3865 for(i = 0; i < s; i++) {
3866 buff[i * 2] = hex_table[src[i] >> 4];
3867 buff[i * 2 + 1] = hex_table[src[i] & 0xF];
3873 int ff_hex_to_data(uint8_t *data, const char *p)
3880 p += strspn(p, SPACE_CHARS);
3883 c = av_toupper((unsigned char) *p++);
3884 if (c >= '0' && c <= '9')
3886 else if (c >= 'A' && c <= 'F')
3901 #if FF_API_SET_PTS_INFO
3902 void av_set_pts_info(AVStream *s, int pts_wrap_bits,
3903 unsigned int pts_num, unsigned int pts_den)
3905 avpriv_set_pts_info(s, pts_wrap_bits, pts_num, pts_den);
3909 void avpriv_set_pts_info(AVStream *s, int pts_wrap_bits,
3910 unsigned int pts_num, unsigned int pts_den)
3913 if(av_reduce(&new_tb.num, &new_tb.den, pts_num, pts_den, INT_MAX)){
3914 if(new_tb.num != pts_num)
3915 av_log(NULL, AV_LOG_DEBUG, "st:%d removing common factor %d from timebase\n", s->index, pts_num/new_tb.num);
3917 av_log(NULL, AV_LOG_WARNING, "st:%d has too large timebase, reducing\n", s->index);
3919 if(new_tb.num <= 0 || new_tb.den <= 0) {
3920 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);
3923 s->time_base = new_tb;
3924 av_codec_set_pkt_timebase(s->codec, new_tb);
3925 s->pts_wrap_bits = pts_wrap_bits;
3928 void ff_parse_key_value(const char *str, ff_parse_key_val_cb callback_get_buf,
3931 const char *ptr = str;
3933 /* Parse key=value pairs. */
3936 char *dest = NULL, *dest_end;
3937 int key_len, dest_len = 0;
3939 /* Skip whitespace and potential commas. */
3940 while (*ptr && (av_isspace(*ptr) || *ptr == ','))
3947 if (!(ptr = strchr(key, '=')))
3950 key_len = ptr - key;
3952 callback_get_buf(context, key, key_len, &dest, &dest_len);
3953 dest_end = dest + dest_len - 1;
3957 while (*ptr && *ptr != '\"') {
3961 if (dest && dest < dest_end)
3965 if (dest && dest < dest_end)
3973 for (; *ptr && !(av_isspace(*ptr) || *ptr == ','); ptr++)
3974 if (dest && dest < dest_end)
3982 int ff_find_stream_index(AVFormatContext *s, int id)
3985 for (i = 0; i < s->nb_streams; i++) {
3986 if (s->streams[i]->id == id)
3992 int64_t ff_iso8601_to_unix_time(const char *datestr)
3994 struct tm time1 = {0}, time2 = {0};
3996 ret1 = av_small_strptime(datestr, "%Y - %m - %d %H:%M:%S", &time1);
3997 ret2 = av_small_strptime(datestr, "%Y - %m - %dT%H:%M:%S", &time2);
3999 return av_timegm(&time2);
4001 return av_timegm(&time1);
4004 int avformat_query_codec(AVOutputFormat *ofmt, enum AVCodecID codec_id, int std_compliance)
4007 if (ofmt->query_codec)
4008 return ofmt->query_codec(codec_id, std_compliance);
4009 else if (ofmt->codec_tag)
4010 return !!av_codec_get_tag(ofmt->codec_tag, codec_id);
4011 else if (codec_id == ofmt->video_codec || codec_id == ofmt->audio_codec ||
4012 codec_id == ofmt->subtitle_codec)
4015 return AVERROR_PATCHWELCOME;
4018 int avformat_network_init(void)
4022 ff_network_inited_globally = 1;
4023 if ((ret = ff_network_init()) < 0)
4030 int avformat_network_deinit(void)
4039 int ff_add_param_change(AVPacket *pkt, int32_t channels,
4040 uint64_t channel_layout, int32_t sample_rate,
4041 int32_t width, int32_t height)
4047 return AVERROR(EINVAL);
4050 flags |= AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT;
4052 if (channel_layout) {
4054 flags |= AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT;
4058 flags |= AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE;
4060 if (width || height) {
4062 flags |= AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS;
4064 data = av_packet_new_side_data(pkt, AV_PKT_DATA_PARAM_CHANGE, size);
4066 return AVERROR(ENOMEM);
4067 bytestream_put_le32(&data, flags);
4069 bytestream_put_le32(&data, channels);
4071 bytestream_put_le64(&data, channel_layout);
4073 bytestream_put_le32(&data, sample_rate);
4074 if (width || height) {
4075 bytestream_put_le32(&data, width);
4076 bytestream_put_le32(&data, height);
4081 AVRational av_guess_sample_aspect_ratio(AVFormatContext *format, AVStream *stream, AVFrame *frame)
4083 AVRational undef = {0, 1};
4084 AVRational stream_sample_aspect_ratio = stream ? stream->sample_aspect_ratio : undef;
4085 AVRational codec_sample_aspect_ratio = stream && stream->codec ? stream->codec->sample_aspect_ratio : undef;
4086 AVRational frame_sample_aspect_ratio = frame ? frame->sample_aspect_ratio : codec_sample_aspect_ratio;
4088 av_reduce(&stream_sample_aspect_ratio.num, &stream_sample_aspect_ratio.den,
4089 stream_sample_aspect_ratio.num, stream_sample_aspect_ratio.den, INT_MAX);
4090 if (stream_sample_aspect_ratio.num <= 0 || stream_sample_aspect_ratio.den <= 0)
4091 stream_sample_aspect_ratio = undef;
4093 av_reduce(&frame_sample_aspect_ratio.num, &frame_sample_aspect_ratio.den,
4094 frame_sample_aspect_ratio.num, frame_sample_aspect_ratio.den, INT_MAX);
4095 if (frame_sample_aspect_ratio.num <= 0 || frame_sample_aspect_ratio.den <= 0)
4096 frame_sample_aspect_ratio = undef;
4098 if (stream_sample_aspect_ratio.num)
4099 return stream_sample_aspect_ratio;
4101 return frame_sample_aspect_ratio;
4104 AVRational av_guess_frame_rate(AVFormatContext *format, AVStream *st, AVFrame *frame)
4106 AVRational fr = st->r_frame_rate;
4108 if (st->codec->ticks_per_frame > 1) {
4109 AVRational codec_fr = av_inv_q(st->codec->time_base);
4110 AVRational avg_fr = st->avg_frame_rate;
4111 codec_fr.den *= st->codec->ticks_per_frame;
4112 if ( codec_fr.num > 0 && codec_fr.den > 0 && av_q2d(codec_fr) < av_q2d(fr)*0.7
4113 && fabs(1.0 - av_q2d(av_div_q(avg_fr, fr))) > 0.1)
4120 int avformat_match_stream_specifier(AVFormatContext *s, AVStream *st,
4123 if (*spec <= '9' && *spec >= '0') /* opt:index */
4124 return strtol(spec, NULL, 0) == st->index;
4125 else if (*spec == 'v' || *spec == 'a' || *spec == 's' || *spec == 'd' ||
4126 *spec == 't') { /* opt:[vasdt] */
4127 enum AVMediaType type;
4130 case 'v': type = AVMEDIA_TYPE_VIDEO; break;
4131 case 'a': type = AVMEDIA_TYPE_AUDIO; break;
4132 case 's': type = AVMEDIA_TYPE_SUBTITLE; break;
4133 case 'd': type = AVMEDIA_TYPE_DATA; break;
4134 case 't': type = AVMEDIA_TYPE_ATTACHMENT; break;
4135 default: av_assert0(0);
4137 if (type != st->codec->codec_type)
4139 if (*spec++ == ':') { /* possibly followed by :index */
4140 int i, index = strtol(spec, NULL, 0);
4141 for (i = 0; i < s->nb_streams; i++)
4142 if (s->streams[i]->codec->codec_type == type && index-- == 0)
4143 return i == st->index;
4147 } else if (*spec == 'p' && *(spec + 1) == ':') {
4151 prog_id = strtol(spec, &endptr, 0);
4152 for (i = 0; i < s->nb_programs; i++) {
4153 if (s->programs[i]->id != prog_id)
4156 if (*endptr++ == ':') {
4157 int stream_idx = strtol(endptr, NULL, 0);
4158 return stream_idx >= 0 &&
4159 stream_idx < s->programs[i]->nb_stream_indexes &&
4160 st->index == s->programs[i]->stream_index[stream_idx];
4163 for (j = 0; j < s->programs[i]->nb_stream_indexes; j++)
4164 if (st->index == s->programs[i]->stream_index[j])
4168 } else if (*spec == '#') {
4171 sid = strtol(spec + 1, &endptr, 0);
4173 return st->id == sid;
4174 } else if (!*spec) /* empty specifier, matches everything */
4177 av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
4178 return AVERROR(EINVAL);
4181 int ff_generate_avci_extradata(AVStream *st)
4183 static const uint8_t avci100_1080p_extradata[] = {
4185 0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
4186 0xb6, 0xd4, 0x20, 0x22, 0x33, 0x19, 0xc6, 0x63,
4187 0x23, 0x21, 0x01, 0x11, 0x98, 0xce, 0x33, 0x19,
4188 0x18, 0x21, 0x02, 0x56, 0xb9, 0x3d, 0x7d, 0x7e,
4189 0x4f, 0xe3, 0x3f, 0x11, 0xf1, 0x9e, 0x08, 0xb8,
4190 0x8c, 0x54, 0x43, 0xc0, 0x78, 0x02, 0x27, 0xe2,
4191 0x70, 0x1e, 0x30, 0x10, 0x10, 0x14, 0x00, 0x00,
4192 0x03, 0x00, 0x04, 0x00, 0x00, 0x03, 0x00, 0xca,
4193 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
4195 0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x33, 0x48,
4198 static const uint8_t avci100_1080i_extradata[] = {
4200 0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
4201 0xb6, 0xd4, 0x20, 0x22, 0x33, 0x19, 0xc6, 0x63,
4202 0x23, 0x21, 0x01, 0x11, 0x98, 0xce, 0x33, 0x19,
4203 0x18, 0x21, 0x03, 0x3a, 0x46, 0x65, 0x6a, 0x65,
4204 0x24, 0xad, 0xe9, 0x12, 0x32, 0x14, 0x1a, 0x26,
4205 0x34, 0xad, 0xa4, 0x41, 0x82, 0x23, 0x01, 0x50,
4206 0x2b, 0x1a, 0x24, 0x69, 0x48, 0x30, 0x40, 0x2e,
4207 0x11, 0x12, 0x08, 0xc6, 0x8c, 0x04, 0x41, 0x28,
4208 0x4c, 0x34, 0xf0, 0x1e, 0x01, 0x13, 0xf2, 0xe0,
4209 0x3c, 0x60, 0x20, 0x20, 0x28, 0x00, 0x00, 0x03,
4210 0x00, 0x08, 0x00, 0x00, 0x03, 0x01, 0x94, 0x00,
4212 0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x33, 0x48,
4215 static const uint8_t avci50_1080i_extradata[] = {
4217 0x00, 0x00, 0x00, 0x01, 0x67, 0x6e, 0x10, 0x28,
4218 0xa6, 0xd4, 0x20, 0x32, 0x33, 0x0c, 0x71, 0x18,
4219 0x88, 0x62, 0x10, 0x19, 0x19, 0x86, 0x38, 0x8c,
4220 0x44, 0x30, 0x21, 0x02, 0x56, 0x4e, 0x6e, 0x61,
4221 0x87, 0x3e, 0x73, 0x4d, 0x98, 0x0c, 0x03, 0x06,
4222 0x9c, 0x0b, 0x73, 0xe6, 0xc0, 0xb5, 0x18, 0x63,
4223 0x0d, 0x39, 0xe0, 0x5b, 0x02, 0xd4, 0xc6, 0x19,
4224 0x1a, 0x79, 0x8c, 0x32, 0x34, 0x24, 0xf0, 0x16,
4225 0x81, 0x13, 0xf7, 0xff, 0x80, 0x02, 0x00, 0x01,
4226 0xf1, 0x80, 0x80, 0x80, 0xa0, 0x00, 0x00, 0x03,
4227 0x00, 0x20, 0x00, 0x00, 0x06, 0x50, 0x80, 0x00,
4229 0x00, 0x00, 0x00, 0x01, 0x68, 0xee, 0x31, 0x12,
4232 static const uint8_t avci100_720p_extradata[] = {
4234 0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
4235 0xb6, 0xd4, 0x20, 0x2a, 0x33, 0x1d, 0xc7, 0x62,
4236 0xa1, 0x08, 0x40, 0x54, 0x66, 0x3b, 0x8e, 0xc5,
4237 0x42, 0x02, 0x10, 0x25, 0x64, 0x2c, 0x89, 0xe8,
4238 0x85, 0xe4, 0x21, 0x4b, 0x90, 0x83, 0x06, 0x95,
4239 0xd1, 0x06, 0x46, 0x97, 0x20, 0xc8, 0xd7, 0x43,
4240 0x08, 0x11, 0xc2, 0x1e, 0x4c, 0x91, 0x0f, 0x01,
4241 0x40, 0x16, 0xec, 0x07, 0x8c, 0x04, 0x04, 0x05,
4242 0x00, 0x00, 0x03, 0x00, 0x01, 0x00, 0x00, 0x03,
4243 0x00, 0x64, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00,
4245 0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x31, 0x12,
4249 const uint8_t *data = NULL;
4252 if (st->codec->width == 1920) {
4253 if (st->codec->field_order == AV_FIELD_PROGRESSIVE) {
4254 data = avci100_1080p_extradata;
4255 size = sizeof(avci100_1080p_extradata);
4257 data = avci100_1080i_extradata;
4258 size = sizeof(avci100_1080i_extradata);
4260 } else if (st->codec->width == 1440) {
4261 data = avci50_1080i_extradata;
4262 size = sizeof(avci50_1080i_extradata);
4263 } else if (st->codec->width == 1280) {
4264 data = avci100_720p_extradata;
4265 size = sizeof(avci100_720p_extradata);
4271 av_freep(&st->codec->extradata);
4272 if (ff_alloc_extradata(st->codec, size))
4273 return AVERROR(ENOMEM);
4274 memcpy(st->codec->extradata, data, size);