ffmpeg | branch: master | Frank Plowman <p...@frankplowman.com> | Thu Nov 28
22:17:28 2024 +0000| [56419fd096c55c646fc56d8dde522e32079c907c] | committer:
Nuo Mi
lavc/vvc: Fix overflow in MVD derivation
H.266 (V3) section 7.4.12.8: "The value of lMvd[ compIdx ] shall be in
the range of −2^{17} to 2^{17} − 1, inclusive."
Signed-off-by: Frank Plowman <p...@frankplowman.com>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=56419fd096c55c646fc56d8dde522e32079c907c
---
libavcodec/vvc/ctu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/vvc/ctu.c b/libavcodec/vvc/ctu.c
index b2c0babe9d..126748360c 100644
--- a/libavcodec/vvc/ctu.c
+++ b/libavcodec/vvc/ctu.c
@@ -1493,7 +1493,7 @@ static int hls_merge_data(VVCLocalContext *lc)
static void hls_mvd_coding(VVCLocalContext *lc, Mv* mvd)
{
- int16_t mv[2];
+ int32_t mv[2];
for (int i = 0; i < 2; i++) {
mv[i] = ff_vvc_abs_mvd_greater0_flag(lc);
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