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| author | Michael Niedermayer <michael@niedermayer.cc> | 2018-03-08 17:28:36 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-03-10 02:44:45 +0100 |
| commit | f655ddfb47e8484b205b14c7f871c643ad24d701 (patch) | |
| tree | 28bd1b6db8c03b6deb64a9c98ebacd6f5c5ff8b5 | |
| parent | 3e7c847aaf5a298b62afae12b4ecfb8e12385998 (diff) | |
| download | ffmpeg-f655ddfb47e8484b205b14c7f871c643ad24d701.tar.gz | |
avformat/oggparsedaala: Do not adjust AV_NOPTS_VALUE
Fixes: potential signed integer overflow
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/oggparsedaala.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/libavformat/oggparsedaala.c b/libavformat/oggparsedaala.c index a373b41b4c..e944470aca 100644 --- a/libavformat/oggparsedaala.c +++ b/libavformat/oggparsedaala.c @@ -218,6 +218,7 @@ static int daala_packet(AVFormatContext *s, int idx) int seg, duration = 1; struct ogg *ogg = s->priv_data; struct ogg_stream *os = ogg->streams + idx; + int64_t pts; /* * first packet handling: here we parse the duration of each packet in the @@ -230,7 +231,10 @@ static int daala_packet(AVFormatContext *s, int idx) if (os->segments[seg] < 255) duration++; - os->lastpts = os->lastdts = daala_gptopts(s, idx, os->granule, NULL) - duration; + pts = daala_gptopts(s, idx, os->granule, NULL); + if (pts != AV_NOPTS_VALUE) + pts -= duration; + os->lastpts = os->lastdts = pts; if(s->streams[idx]->start_time == AV_NOPTS_VALUE) { s->streams[idx]->start_time = os->lastpts; if (s->streams[idx]->duration != AV_NOPTS_VALUE) |