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matroskademux: Avoid division by zero assert in gst_matroska_demux_search_pos

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https://bugzilla.gnome.org/show_bug.cgi?id=711829
This commit is contained in:
Per x Johansson 2013-10-24 13:16:42 +02:00 committed by Sebastian Dröge
parent 0ee332378b
commit b3e0b1dbca
1 changed files with 10 additions and 5 deletions
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15
gst/matroska/matroska-demux.c
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@ -1872,12 +1872,17 @@ retry:
GST_TIME_FORMAT, opos, GST_TIME_ARGS (otime),
GST_TIME_ARGS (otime - demux->stream_start_time),
GST_TIME_ARGS (demux->stream_start_time), GST_TIME_ARGS (time));
newpos =
gst_util_uint64_scale (opos - demux->common.ebml_segment_start,
time - demux->stream_start_time,
otime - demux->stream_start_time) - chunk;
if (newpos < 0)
if (otime <= demux->stream_start_time) {
newpos = 0;
} else {
newpos =
gst_util_uint64_scale (opos - demux->common.ebml_segment_start,
time - demux->stream_start_time,
otime - demux->stream_start_time) - chunk;
if (newpos < 0)
newpos = 0;
}
/* favour undershoot */
newpos = newpos * 90 / 100;
newpos += demux->common.ebml_segment_start;