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-rw-r--r--libavcodec/rv30.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/libavcodec/rv30.c b/libavcodec/rv30.c
index f724c0b794..074c1265a6 100644
--- a/libavcodec/rv30.c
+++ b/libavcodec/rv30.c
@@ -51,6 +51,11 @@ static int rv30_parse_slice_header(RV34DecContext *r, GetBitContext *gb, SliceIn
skip_bits1(gb);
si->pts = get_bits(gb, 13);
rpr = get_bits(gb, r->rpr);
+ if (r->s.avctx->extradata_size < 8 + rpr*2) {
+ av_log(r->s.avctx, AV_LOG_WARNING,
+ "Extradata does not contain selected resolution\n");
+ rpr = 0;
+ }
if(rpr){
w = r->s.avctx->extradata[6 + rpr*2] << 2;
h = r->s.avctx->extradata[7 + rpr*2] << 2;