c4d1ab573a
Making appropriate memset inside decode_block now. Change-Id: I8e944194668c830de08271c8fb6e413251c201d8
102 lines
3.2 KiB
C
102 lines
3.2 KiB
C
/*
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* Copyright (c) 2010 The WebM 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 "./vp9_rtcd.h"
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#include "vp9/common/vp9_blockd.h"
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#include "vp9/decoder/vp9_idct_blk.h"
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void vp9_iht_add_c(TX_TYPE tx_type, int16_t *input, uint8_t *dest, int stride,
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int eob) {
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if (tx_type == DCT_DCT)
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vp9_idct_add(input, dest, stride, eob);
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else
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vp9_short_iht4x4_add(input, dest, stride, tx_type);
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}
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void vp9_iht_add_8x8_c(TX_TYPE tx_type, int16_t *input, uint8_t *dest,
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int stride, int eob) {
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if (tx_type == DCT_DCT) {
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vp9_idct_add_8x8(input, dest, stride, eob);
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} else {
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if (eob > 0) {
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vp9_short_iht8x8_add(input, dest, stride, tx_type);
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}
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}
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}
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void vp9_idct_add_c(int16_t *input, uint8_t *dest, int stride, int eob) {
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if (eob > 1)
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vp9_short_idct4x4_add(input, dest, stride);
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else
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vp9_short_idct4x4_1_add(input, dest, stride);
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}
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void vp9_idct_add_lossless_c(int16_t *input, uint8_t *dest, int stride,
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int eob) {
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if (eob > 1)
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vp9_short_iwalsh4x4_add(input, dest, stride);
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else
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vp9_short_iwalsh4x4_1_add_c(input, dest, stride);
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}
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void vp9_idct_add_8x8_c(int16_t *input, uint8_t *dest, int stride, int eob) {
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// If dc is 1, then input[0] is the reconstructed value, do not need
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// dequantization. Also, when dc is 1, dc is counted in eobs, namely eobs >=1.
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// The calculation can be simplified if there are not many non-zero dct
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// coefficients. Use eobs to decide what to do.
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// TODO(yunqingwang): "eobs = 1" case is also handled in vp9_short_idct8x8_c.
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// Combine that with code here.
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if (eob) {
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if (eob == 1)
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// DC only DCT coefficient
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vp9_short_idct8x8_1_add(input, dest, stride);
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else if (eob <= 10)
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vp9_short_idct8x8_10_add(input, dest, stride);
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else
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vp9_short_idct8x8_add(input, dest, stride);
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}
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}
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void vp9_iht_add_16x16_c(TX_TYPE tx_type, int16_t *input, uint8_t *dest,
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int stride, int eob) {
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if (tx_type == DCT_DCT) {
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vp9_idct_add_16x16(input, dest, stride, eob);
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} else {
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if (eob > 0) {
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vp9_short_iht16x16_add(input, dest, stride, tx_type);
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}
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}
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}
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void vp9_idct_add_16x16_c(int16_t *input, uint8_t *dest, int stride, int eob) {
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/* The calculation can be simplified if there are not many non-zero dct
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* coefficients. Use eobs to separate different cases. */
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if (eob) {
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if (eob == 1)
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/* DC only DCT coefficient. */
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vp9_short_idct16x16_1_add(input, dest, stride);
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else if (eob <= 10)
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vp9_short_idct16x16_10_add(input, dest, stride);
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else
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vp9_short_idct16x16_add(input, dest, stride);
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}
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}
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void vp9_idct_add_32x32_c(int16_t *input, uint8_t *dest, int stride, int eob) {
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if (eob) {
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if (eob == 1)
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vp9_short_idct32x32_1_add(input, dest, stride);
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else
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vp9_short_idct32x32_add(input, dest, stride);
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}
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}
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