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matroskademux: Don't get stuck at the same offset when searching for clusters

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This could happen if there is an invalid cluster with size 0, and in that
case just error out instead of looping forever.
This commit is contained in:
Sebastian Dröge 2014-12-29 15:00:02 +01:00
parent aa94fc6beb
commit e596a3b6a7
1 changed files with 5 additions and 0 deletions
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5
gst/matroska/matroska-demux.c
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@ -1610,6 +1610,11 @@ gst_matroska_demux_search_cluster (GstMatroskaDemux * demux, gint64 * pos)
GST_DEBUG_OBJECT (demux, "cluster is first cluster -> OK"); GST_DEBUG_OBJECT (demux, "cluster is first cluster -> OK");
break; break;
} }
if (newpos == demux->common.offset) {
GST_ERROR_OBJECT (demux, "Stuck at the same offset");
ret = GST_FLOW_ERROR;
goto exit;
}
demux->common.offset = newpos; demux->common.offset = newpos;
ret = gst_matroska_read_common_peek_id_length_pull (&demux->common, ret = gst_matroska_read_common_peek_id_length_pull (&demux->common,
GST_ELEMENT_CAST (demux), &id, &length, &needed); GST_ELEMENT_CAST (demux), &id, &length, &needed);