Detect split RV30 slices

Originally committed as revision 15732 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/libavcodec/rv30.c b/libavcodec/rv30.c
index 2cd12bc..0202873 100644 (file)
--- a/libavcodec/rv30.c
+++ b/libavcodec/rv30.c
@@ -40,7 +40,8 @@ static int rv30_parse_slice_header(RV34DecContext *r, GetBitContext *gb, SliceIn
     int mb_size;
 
     memset(si, 0, sizeof(SliceInfo));
-    skip_bits(gb, 3);
+    if(get_bits(gb, 3))
+        return -1;
     si->type = get_bits(gb, 2);
     if(si->type == 1) si->type = 0;
     if(get_bits1(gb))