Test extradata size before reading from extradata when decoding avui.

13 years ago · 83de4f5fc9
parent d5a17d7f4d
commit 83de4f5fc9
1 changed files with 2 additions and 2 deletions
--- a/libavcodec/avuidec.c
+++ b/libavcodec/avuidec.c
@ -48,8 +48,8 @@ static int avui_decode_frame(AVCodecContext *avctx, void *data,
    if (pic->data[0])
        avctx->release_buffer(avctx, pic);

-    if (!memcmp(&avctx->extradata[4], "APRGAPRG0001", 12) &&
-        avctx->extradata_size >= 24)
+    if (avctx->extradata_size >= 24 &&
+        !memcmp(&avctx->extradata[4], "APRGAPRG0001", 12))
        interlaced = avctx->extradata[19] != 1;
    if (avctx->height == 486) {
        skip = 10;