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62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
/*
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* Copyright (c) 2010 The VP8 project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "vpx_ports/config.h"
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#include "dequantize.h"
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#include "predictdc.h"
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#include "idct.h"
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#include "vpx_mem/vpx_mem.h"
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extern void vp8_short_idct4x4llm_c(short *input, short *output, int pitch) ;
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extern void vp8_short_idct4x4llm_1_c(short *input, short *output, int pitch);
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void vp8_dequantize_b_c(BLOCKD *d)
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{
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int i;
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short *DQ = d->dqcoeff;
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short *Q = d->qcoeff;
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short *DQC = &d->dequant[0][0];
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for (i = 0; i < 16; i++)
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{
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DQ[i] = Q[i] * DQC[i];
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}
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}
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void vp8_dequant_idct_c(short *input, short *dq, short *output, int pitch)
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{
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int i;
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for (i = 0; i < 16; i++)
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{
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input[i] = dq[i] * input[i];
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}
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vp8_short_idct4x4llm_c(input, output, pitch);
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vpx_memset(input, 0, 32);
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}
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void vp8_dequant_dc_idct_c(short *input, short *dq, short *output, int pitch, int Dc)
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{
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int i;
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input[0] = (short)Dc;
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for (i = 1; i < 16; i++)
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{
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input[i] = dq[i] * input[i];
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}
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vp8_short_idct4x4llm_c(input, output, pitch);
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vpx_memset(input, 0, 32);
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}
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