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Merge commit 'd1f05dd18375f2f8e68372edee11436927e43ba8'

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* commit 'd1f05dd18375f2f8e68372edee11436927e43ba8':
  ogg: calculate the start position once all the headers are parsed

Conflicts:
	libavformat/oggdec.c
	libavformat/oggparseskeleton.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-09-25 16:00:09 +02:00
commit 0842e32f99
3 changed files with 16 additions and 7 deletions
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4
libavformat/oggdec.c
View File

@ -223,6 +223,7 @@ static int ogg_new_stream(AVFormatContext *s, uint32_t serial)
os->bufsize = DECODER_BUFFER_SIZE;
os->buf = av_malloc(os->bufsize + FF_INPUT_BUFFER_PADDING_SIZE);
os->header = -1;
os->start_granule = OGG_NOGRANULE_VALUE;
if (!os->buf)
return AVERROR(ENOMEM);
@ -609,6 +610,9 @@ static int ogg_read_header(AVFormatContext *s)
} else if (os->codec && os->nb_header < os->codec->nb_header) {
av_log(s, AV_LOG_WARNING, "Number of headers (%d) mismatch for stream %d\n", os->nb_header, i);
}
if (os->start_granule != OGG_NOGRANULE_VALUE)
os->lastpts = s->streams[i]->start_time =
ogg_gptopts(s, i, os->start_granule, NULL);
}
//linear granulepos seek from end

3
libavformat/oggdec.h
View File

@ -67,6 +67,7 @@ struct ogg_stream {
unsigned int pduration;
uint32_t serial;
uint64_t granule;
uint64_t start_granule;
int64_t lastpts;
int64_t lastdts;
int64_t sync_pos; ///< file offset of the first page needed to reconstruct the current packet
@ -105,6 +106,8 @@ struct ogg {
#define OGG_FLAG_BOS 2
#define OGG_FLAG_EOS 4
#define OGG_NOGRANULE_VALUE -1ull
extern const struct ogg_codec ff_celt_codec;
extern const struct ogg_codec ff_dirac_codec;
extern const struct ogg_codec ff_flac_codec;

16
libavformat/oggparseskeleton.c
View File

@ -30,7 +30,8 @@ static int skeleton_header(AVFormatContext *s, int idx)
AVStream *st = s->streams[idx];
uint8_t *buf = os->buf + os->pstart;
int version_major, version_minor;
int64_t start_num, start_den, start_granule;
int64_t start_num, start_den;
uint64_t start_granule;
int target_idx, start_time;
strcpy(st->codec->codec_name, "skeleton");
@ -73,12 +74,13 @@ static int skeleton_header(AVFormatContext *s, int idx)
target_idx = ogg_find_stream(ogg, AV_RL32(buf+12));
start_granule = AV_RL64(buf+36);
if (target_idx >= 0 && start_granule != -1) {
int64_t pts = ogg_gptopts(s, target_idx, start_granule, NULL);
if (pts == AV_NOPTS_VALUE)
return -1;
ogg->streams[target_idx].lastpts =
s->streams[target_idx]->start_time = pts;
if (os->start_granule != OGG_NOGRANULE_VALUE) {
av_log_missing_feature(s, "multiple fisbone for the "
"same stream\n", 0);
return 1;
}
if (target_idx >= 0 && start_granule != OGG_NOGRANULE_VALUE) {
os->start_granule = start_granule;
}
}