---
libavcodec/vulkan/ffv1_common.comp | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/libavcodec/vulkan/ffv1_common.comp
b/libavcodec/vulkan/ffv1_common.comp
index 1f222bdc42..3d40592739 100644
--- a/libavcodec/vulkan/ffv1_common.comp
+++ b/libavcodec/vulkan/ffv1_common.comp
@@ -100,17 +100,17 @@ uint slice_coord(uint width, uint sx, uint num_h_slices,
uint chroma_shift)
ivec2 get_pred(readonly uimage2D pred, ivec2 sp, ivec2 off,
int comp, int sw, uint8_t quant_table_idx, bool extend_lookup)
{
- const ivec2 yoff_border1 = expectEXT(off.x == 0, false) ? ivec2(1, -1) :
ivec2(0, 0);
+ const ivec2 yoff_border1 = expectEXT(off.x == 0, false) ? off + ivec2(1,
-1) : off;
/* Thanks to the same coincidence as below, we can skip checking if off ==
0, 1 */
- VTYPE3 top = VTYPE3(TYPE(imageLoad(pred, sp + LADDR(off + ivec2(-1, -1) +
yoff_border1))[comp]),
+ VTYPE3 top = VTYPE3(TYPE(imageLoad(pred, sp + LADDR(yoff_border1 +
ivec2(-1, -1)))[comp]),
TYPE(imageLoad(pred, sp + LADDR(off + ivec2(0,
-1)))[comp]),
TYPE(imageLoad(pred, sp + LADDR(off + ivec2(min(1, sw
- off.x - 1), -1)))[comp]));
/* Normally, we'd need to check if off != ivec2(0, 0) here, since
otherwise, we must
* return zero. However, ivec2(-1, 0) + ivec2(1, -1) == ivec2(0, -1),
e.g. previous
* row, 0 offset, same slice, which is zero since we zero out the buffer
for RGB */
- TYPE cur = TYPE(imageLoad(pred, sp + LADDR(off + ivec2(-1, 0) +
yoff_border1))[comp]);
+ TYPE cur = TYPE(imageLoad(pred, sp + LADDR(yoff_border1 + ivec2(-1,
0)))[comp]);
int base = quant_table[quant_table_idx][0][(cur - top[0]) &
MAX_QUANT_TABLE_MASK] +
quant_table[quant_table_idx][1][(top[0] - top[1]) &
MAX_QUANT_TABLE_MASK] +
--
2.49.0.395.g12beb8f557c
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