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authorMichael Niedermayer <michaelni@gmx.at>2014-12-09 03:34:20 +0100
committerMichael Niedermayer <michaelni@gmx.at>2014-12-09 03:34:20 +0100
commitdd70470d72758b4e94b17c6808a5ed0c9e8fe097 (patch)
treed9f095743aa3fcc7ee3d7cb33694032554b84b4e /libavformat
parent9e561410c08ebe128e0be86f7b4492dc7bc87bb2 (diff)
avformat/utils: Compute the current pts of mpeg1/2 I/P frames from the next frame when available
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavformat')
-rw-r--r--libavformat/utils.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/libavformat/utils.c b/libavformat/utils.c
index f70223bfe2..3246da67ed 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -1102,6 +1102,14 @@ static void compute_pkt_fields(AVFormatContext *s, AVStream *st,
st->last_IP_duration = pkt->duration;
if (pkt->dts != AV_NOPTS_VALUE)
st->cur_dts = pkt->dts + st->last_IP_duration;
+ if (pkt->dts != AV_NOPTS_VALUE &&
+ pkt->pts == AV_NOPTS_VALUE &&
+ st->last_IP_duration > 0 &&
+ (st->cur_dts - next_dts) <= 1 &&
+ next_dts != next_pts &&
+ next_pts != AV_NOPTS_VALUE)
+ pkt->pts = next_dts;
+
st->last_IP_duration = pkt->duration;
st->last_IP_pts = pkt->pts;
/* Cannot compute PTS if not present (we can compute it only