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commit 82487bf39f3b88bcaac1387c3eb12db1708ad45f Author: Niklas Haas <[email protected]> AuthorDate: Tue Nov 3 21:07:44 2026 +0100 Commit: Niklas Haas <[email protected]> CommitDate: Sun Nov 8 01:48:12 2026 +0000 swscale/x86/ops: pack SCALE constant as dword The SSE4 path loads this as `movd`, so packing it as a u16 is technically wrong, since it relies on implicit union padding guarantees to ensure the remaining bytes are all 0. Conversily, the other direction (storing as u32 and reading as u16) is always safe since x86 is little endian. Signed-off-by: Niklas Haas <[email protected]> --- libswscale/x86/ops.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libswscale/x86/ops.c b/libswscale/x86/ops.c index ab9a5c7a8f..1e518a3f03 100644 --- a/libswscale/x86/ops.c +++ b/libswscale/x86/ops.c @@ -271,7 +271,7 @@ static int setup_scale(const SwsImplParams *params, SwsImplResult *out) { const SwsUOp *uop = params->uop; switch (uop->type) { - case SWS_PIXEL_U8: out->priv.u16[0] = uop->data.scalar.u8; break; /* for pmullw */ + case SWS_PIXEL_U8: out->priv.u32[0] = uop->data.scalar.u8; break; /* for movd */ case SWS_PIXEL_U16: out->priv.u16[0] = uop->data.scalar.u16; break; case SWS_PIXEL_U32: out->priv.u32[0] = uop->data.scalar.u32; break; case SWS_PIXEL_F32: out->priv.f32[0] = uop->data.scalar.f32; break; -- To stop receiving notification emails like this one, please contact [email protected]. _______________________________________________ ffmpeg-cvslog mailing list -- [email protected] To unsubscribe send an email to [email protected]
