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eatgq: fix small overread

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2012-10-14 12:54:10 +00:00
parent 82c0055c5e
commit de3b1116da

View File

@ -189,12 +189,13 @@ static int tgq_decode_frame(AVCodecContext *avctx,
int buf_size = avpkt->size;
TgqContext *s = avctx->priv_data;
int x,y;
int big_endian = AV_RL32(&buf[4]) > 0x000FFFFF;
int big_endian;
if (buf_size < 16) {
av_log(avctx, AV_LOG_WARNING, "truncated header\n");
return -1;
}
big_endian = AV_RL32(&buf[4]) > 0x000FFFFF;
bytestream2_init(&s->gb, buf + 8, buf_size - 8);
if (big_endian) {
s->width = bytestream2_get_be16u(&s->gb);