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-rw-r--r--libswscale/swscale.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libswscale/swscale.c b/libswscale/swscale.c
index dbe61c7..bf0c130 100644
--- a/libswscale/swscale.c
+++ b/libswscale/swscale.c
@@ -910,7 +910,7 @@ int attribute_align_arg sws_scale(struct SwsContext *c,
src2[0] = base;
}
- if (!srcSliceY && (c->flags & SWS_ERROR_DIFFUSION))
+ if (!srcSliceY && (c->flags & SWS_BITEXACT) && (c->flags & SWS_ERROR_DIFFUSION))
for (i = 0; i < 4; i++)
memset(c->dither_error[i], 0, sizeof(c->dither_error[0][0]) * (c->dstW+2));
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