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vp9: fix type of iadst4_1d intermediates.

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Fixes integer overflows for extreme coefficient values in 10/12bpp content.
This commit is contained in:
Ronald S. Bultje
2015-09-04 17:01:53 -04:00
parent 342bca7f02
commit ef8740d8e5
1 changed files with 1 additions and 1 deletions
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libavcodec/vp9dsp_template.c
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@@ -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);