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dashdemux: Exception handle in _sidx_seek()

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If target seek position is outside of the range of sidx entries,
binary search returns NULL pointer.

https://bugzilla.gnome.org/show_bug.cgi?id=776200
This commit is contained in:
Seungha Yang 2017-03-14 19:41:56 +09:00 committed by Sebastian Dröge
parent 0dcb1e4ecc
commit ad015ceef5
1 changed files with 9 additions and 1 deletions
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10
ext/dash/gstdashdemux.c
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@ -1270,7 +1270,15 @@ gst_dash_demux_stream_sidx_seek (GstDashDemuxStream * dashstream,
sizeof (GstSidxBoxEntry),
(GCompareDataFunc) gst_dash_demux_index_entry_search, mode, &ts, NULL);
idx = entry - sidx->entries;
if (entry) {
idx = entry - sidx->entries;
} else if (mode == GST_SEARCH_MODE_BEFORE) {
/* target ts is smaller than pts of the first entry */
idx = 0;
} else {
/* target ts is larger than pts + duration of the last entry
* idx = sidx->entries_count */
}
/* FIXME in reverse mode, if we are exactly at a fragment start it makes more
* sense to start from the end of the previous fragment */