matroskadec: add assert on lack of overflow in pkt_size+offset

currently a overflow there should be impossible but future changes to
the code could easily introduce a bug that no longer limits the 2
values sufficiently so better protect it via av_assert.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-06-15 01:35:52 +02:00
parent 4b7c52346a
commit 59c122b3b0

View File

@ -2053,6 +2053,7 @@ static int matroska_parse_block(MatroskaDemuxContext *matroska, uint8_t *data,
offset = matroska_decode_buffer(&pkt_data,&pkt_size, track);
if (offset < 0)
continue;
av_assert0(offset + pkt_size >= pkt_size);
}
pkt = av_mallocz(sizeof(AVPacket));