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ttadec: use branchless unsigned-to-signed unfolding
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@ -396,8 +396,7 @@ static int tta_decode_frame(AVCodecContext *avctx, void *data,
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}
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}
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// extract coded value
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// extract coded value
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#define UNFOLD(x) (((x)&1) ? (++(x)>>1) : (-(x)>>1))
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*p = 1 + ((value >> 1) ^ ((value & 1) - 1));
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*p = UNFOLD(value);
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// run hybrid filter
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// run hybrid filter
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ttafilter_process(filter, p);
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ttafilter_process(filter, p);
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