The init function reads one byte of extradata.
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
const int scale = avctx->codec_id == AV_CODEC_ID_ASV1 ? 1 : 2;
int i;
+ if (avctx->extradata_size < 1) {
+ av_log(avctx, AV_LOG_ERROR, "No extradata provided\n");
+ return AVERROR_INVALIDDATA;
+ }
+
ff_asv_common_init(avctx);
init_vlcs(a);
ff_init_scantable(a->dsp.idct_permutation, &a->scantable, ff_asv_scantab);