Message ID | b7291b4e-7efe-1b07-8a75-2b12ccdab8f9@carpalis.nl |
---|---|
State | Accepted |
Commit | 0ec7eb930520b21b9cda34809378b0a8ca3a46e2 |
Headers | show |
diff --git a/libavcodec/vaapi_vc1.c b/libavcodec/vaapi_vc1.c index a137979dd4..e93b7285e3 100644 --- a/libavcodec/vaapi_vc1.c +++ b/libavcodec/vaapi_vc1.c @@ -387,7 +387,7 @@ static int vaapi_vc1_start_frame(AVCodecContext *avctx, av_unused const uint8_t if (err) goto fail; - if (pic_param.bitplane_present.value) { + if (pic_param.bitplane_present.value & 0x7f) { uint8_t *bitplane; const uint8_t *ff_bp[3]; int x, y, n;
avcodec/vaapi: mask unused bits in bitplane_present.value Due to the union construct, unused bits in bitplane_present.value might be uninitialized even when the used bits are all set to a value. Masking the unused bits prevents spurious true values when all used bits are unset, e.g. skipped pictures. Signed-off-by: Jerome Borsboom <jerome.borsboom@carpalis.nl> --- libavcodec/vaapi_vc1.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)