1
0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2024-12-18 13:35:13 +00:00

avformat/oggparsevp8: fix pts calculation on pages ending with an invisible frame

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 5adfbd3918)
This commit is contained in:
James Almer 2016-07-12 17:05:42 -03:00
parent 0ca22536c7
commit 470bdd397f

View File

@ -82,7 +82,11 @@ static uint64_t vp8_gptopts(AVFormatContext *s, int idx,
struct ogg *ogg = s->priv_data;
struct ogg_stream *os = ogg->streams + idx;
uint64_t pts = (granule >> 32);
int invcnt = !((granule >> 30) & 3);
// If page granule is that of an invisible vp8 frame, its pts will be
// that of the end of the next visible frame. We substract 1 for those
// to prevent messing up pts calculations.
uint64_t pts = (granule >> 32) - invcnt;
uint32_t dist = (granule >> 3) & 0x07ffffff;
if (!dist)