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Add a read_timestamp function to ogg demuxer 

Originally committed as revision 10701 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Reimar Döffinger 2007-10-10 10:33:07 +00:00
parent 03d3cab876
commit a1f29b959b
1 changed files with 16 additions and 9 deletions
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25
libavformat/ogg2.c
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@ -659,21 +659,28 @@ ogg_read_seek (AVFormatContext * s, int stream_index, int64_t target_ts,
}
#if 0
static int64_t
ogg_read_timestamp (AVFormatContext * s, int stream_index, int64_t * pos_arg,
int64_t pos_limit)
{
ogg_t *ogg = s->priv_data;
ByteIOContext *bc = &s->pb;
int64_t pos, pts;
if (*pos_arg < 0)
return AV_NOPTS_VALUE;
pos = *pos_arg;
int64_t pts = AV_NOPTS_VALUE;
int i;
url_fseek(bc, *pos_arg, SEEK_SET);
while (url_ftell(bc) < pos_limit && !ogg_read_page (s, &i)) {
if (ogg->streams[i].granule != -1 && ogg->streams[i].granule != 0 &&
ogg->streams[i].codec && i == stream_index) {
pts = ogg_gptopts(s, i, ogg->streams[i].granule);
// FIXME: this is the position of the packet after the one with above
// pts.
*pos_arg = url_ftell(bc);
break;
}
}
ogg_reset(ogg);
return pts;
}
#endif
static int ogg_probe(AVProbeData *p)
{
@ -694,6 +701,6 @@ AVInputFormat ogg_demuxer = {
ogg_read_packet,
ogg_read_close,
ogg_read_seek,
// ogg_read_timestamp,
ogg_read_timestamp,
.extensions = "ogg",
};