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videoparseutils: Fix for wrong CEA708 minimum size check

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The minimum possible size of valid CEA708 data is 3 bytes, not 7 bytes

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2505>
This commit is contained in:
Seungha Yang 2021-09-02 22:06:52 +09:00
parent cfc80e5168
commit f2fa75accb
1 changed files with 5 additions and 1 deletions
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6
gst/videoparsers/gstvideoparseutils.c
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@ -142,7 +142,11 @@ gst_video_parse_user_data (GstElement * elt, GstVideoParseUserData * user_data,
}
switch (user_data_type_code) {
case A53_USER_DATA_TYPE_CODE_CC_DATA:
if (gst_byte_reader_get_remaining (br) < 7) {
/* 1 (cc count byte) +
* 1 (reserved byte, 0xff) +
* 1 (marker_bits, 0xff)
*/
if (gst_byte_reader_get_remaining (br) < 3) {
GST_WARNING_OBJECT (elt,
"Closed caption data packet too short, ignoring");
break;