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Git pushed a commit to branch master
in repository ffmpeg.

commit 91b0dc51476c03c8c38f3184ddfbcd18e460c7ad
Author:     Niklas Haas <[email protected]>
AuthorDate: Wed Oct 21 00:58:52 2026 +0200
Commit:     Niklas Haas <[email protected]>
CommitDate: Sat Oct 24 19:10:48 2026 +0000

    swscale/vulkan/ops: reject dithering of non-float values
    
    The dither offsets are added with a float addition, which is not valid
    for integer values.
    
    Co-Authored-By: Claude Opus 5.5 <[email protected]>
    Signed-off-by: Niklas Haas <[email protected]>
---
 libswscale/vulkan/ops.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libswscale/vulkan/ops.c b/libswscale/vulkan/ops.c
index be3be0621b..8a84f7f865 100644
--- a/libswscale/vulkan/ops.c
+++ b/libswscale/vulkan/ops.c
@@ -1282,6 +1282,8 @@ static int add_ops_spirv(SwsContext *sws, VulkanPriv *p, 
FFVulkanOpsCtx *s,
             }
             break;
         case SWS_OP_DITHER: {
+            if (type_in != SWS_PIXEL_F32)
+                return AVERROR(ENOTSUP);
             const struct DitherData *d = &id->dither[oid->buf];
             int x_id = spi_OpCompositeExtract(spi, id->u32_type, gid, 0);
             int y_pos = spi_OpCompositeExtract(spi, id->u32_type, gid, 1);

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