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qtdemux: make sure compatible brands buffer exists before dereferencing it

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This commit is contained in:
Tim-Philipp Müller 2009-10-05 11:46:08 +01:00
parent c7b5df91a9
commit 45ff905771
1 changed files with 3 additions and 1 deletions
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4
gst/qtdemux/qtdemux.c
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@ -4844,7 +4844,7 @@ qtdemux_is_brand_3gp (GstQTDemux * qtdemux, gboolean major)
if (major) { if (major) {
return ((qtdemux->major_brand & GST_MAKE_FOURCC (255, 255, 0, 0)) == return ((qtdemux->major_brand & GST_MAKE_FOURCC (255, 255, 0, 0)) ==
GST_MAKE_FOURCC ('3', 'g', 0, 0)); GST_MAKE_FOURCC ('3', 'g', 0, 0));
} else { } else if (qtdemux->comp_brands != NULL) {
guint8 *data = GST_BUFFER_DATA (qtdemux->comp_brands); guint8 *data = GST_BUFFER_DATA (qtdemux->comp_brands);
guint size = GST_BUFFER_SIZE (qtdemux->comp_brands); guint size = GST_BUFFER_SIZE (qtdemux->comp_brands);
gboolean res = FALSE; gboolean res = FALSE;
@ -4856,6 +4856,8 @@ qtdemux_is_brand_3gp (GstQTDemux * qtdemux, gboolean major)
size -= 4; size -= 4;
} }
return res; return res;
} else {
return FALSE;
} }
} }