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avcodec/mpegvideo_enc: fix integer overflow with -skip_exp >= 2

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-12-20 13:35:39 +01:00
parent 3f307d79d3
commit 241eccd628
1 changed files with 3 additions and 3 deletions
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6
libavcodec/mpegvideo_enc.c
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@ -1148,9 +1148,9 @@ static int skip_check(MpegEncContext *s, Picture *p, Picture *ref)
switch (s->avctx->frame_skip_exp) {
case 0: score = FFMAX(score, v); break;
case 1: score += FFABS(v); break;
case 2: score += v * v; break;
case 3: score64 += FFABS(v * v * (int64_t)v); break;
case 4: score64 += v * v * (int64_t)(v * v); break;
case 2: score64 += v * (int64_t)v; break;
case 3: score64 += FFABS(v * (int64_t)v * v); break;
case 4: score64 += (v * (int64_t)v) * (v * (int64_t)v); break;
}
}
}