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Remove QuantizeBlockWHT() in enc.c

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QuantizeBlockWHT() is basically identical to QuantizeBlock(),
no need to keep two copies.

Change-Id: I970cb6948da1c750c1339971a55e3b40765cdd01
This commit is contained in:
hui su 2016-07-14 10:39:35 -07:00
parent fe57273736
commit 91b59e886b
1 changed files with 1 additions and 27 deletions
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28
src/dsp/enc.c
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@ -656,32 +656,6 @@ static int Quantize2Blocks(int16_t in[32], int16_t out[32],
return nz;
}
static int QuantizeBlockWHT(int16_t in[16], int16_t out[16],
const VP8Matrix* const mtx) {
int n, last = -1;
for (n = 0; n < 16; ++n) {
const int j = kZigzag[n];
const int sign = (in[j] < 0);
const uint32_t coeff = sign ? -in[j] : in[j];
assert(mtx->sharpen_[j] == 0);
if (coeff > mtx->zthresh_[j]) {
const uint32_t Q = mtx->q_[j];
const uint32_t iQ = mtx->iq_[j];
const uint32_t B = mtx->bias_[j];
int level = QUANTDIV(coeff, iQ, B);
if (level > MAX_LEVEL) level = MAX_LEVEL;
if (sign) level = -level;
in[j] = level * (int)Q;
out[n] = level;
if (level) last = n;
} else {
out[n] = 0;
in[j] = 0;
}
}
return (last >= 0);
}
//------------------------------------------------------------------------------
// Block copy
@ -823,7 +797,7 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInit(void) {
VP8TDisto16x16 = Disto16x16;
VP8EncQuantizeBlock = QuantizeBlock;
VP8EncQuantize2Blocks = Quantize2Blocks;
VP8EncQuantizeBlockWHT = QuantizeBlockWHT;
VP8EncQuantizeBlockWHT = QuantizeBlock;
VP8Copy4x4 = Copy4x4;
VP8Copy16x8 = Copy16x8;