[FFmpeg-devel] [PATCH] vp9: fix type of iadst4_1d intermediates.

[Ronald S. Bultje]

Fixes integer overflows for extreme coefficient values in 10/12bpp content.
---
 libavcodec/vp9dsp_template.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/vp9dsp_template.c b/libavcodec/vp9dsp_template.c
index 9395a0c..4d810fe 100644
--- a/libavcodec/vp9dsp_template.c
+++ b/libavcodec/vp9dsp_template.c
@@ -1186,7 +1186,7 @@ static av_always_inline void idct4_1d(const dctcoef *in, ptrdiff_t stride,
 static av_always_inline void iadst4_1d(const dctcoef *in, ptrdiff_t stride,
                                        dctcoef *out, int pass)
 {
-    int t0, t1, t2, t3;
+    dctint t0, t1, t2, t3;
 
     t0 =  5283 * IN(0) + 15212 * IN(2) +  9929 * IN(3);
     t1 =  9929 * IN(0) -  5283 * IN(2) - 15212 * IN(3);
-- 
2.1.2