avcodec/mmvideo: Fix undefined behavior (left shift of negative value)

Fixes: asan_heap-oob_4da4f3_8_asan_heap-oob_4da4f3_419_scene1a.mm Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago · 9db9b209e3
parent 1acc9189b4
commit 9db9b209e3
1 changed files with 1 additions and 1 deletions
--- a/libavcodec/mmvideo.c
+++ b/libavcodec/mmvideo.c
@ -49,7 +49,7 @@
 typedef struct MmContext {
    AVCodecContext *avctx;
    AVFrame *frame;
-    int palette[AVPALETTE_COUNT];
+    unsigned int palette[AVPALETTE_COUNT];
    GetByteContext gb;
 } MmContext;