1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
/*
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "vp9/common/vp9_invtrans.h"
#include "./vp9_rtcd.h"
void vp9_inverse_transform_b_4x4(MACROBLOCKD *xd, int block, int pitch) {
BLOCKD *b = &xd->block[block];
if (b->eob <= 1)
xd->inv_txm4x4_1(b->dqcoeff, b->diff, pitch);
else
xd->inv_txm4x4(b->dqcoeff, b->diff, pitch);
}
void vp9_inverse_transform_mby_4x4(MACROBLOCKD *xd) {
int i;
for (i = 0; i < 16; i++) {
TX_TYPE tx_type = get_tx_type_4x4(xd, &xd->block[i]);
if (tx_type != DCT_DCT) {
vp9_short_iht4x4(xd->block[i].dqcoeff, xd->block[i].diff,
32, tx_type);
} else {
vp9_inverse_transform_b_4x4(xd, i, 32);
}
}
}
void vp9_inverse_transform_mbuv_4x4(MACROBLOCKD *xd) {
int i;
for (i = 16; i < 24; i++) {
vp9_inverse_transform_b_4x4(xd, i, 16);
}
}
void vp9_inverse_transform_mb_4x4(MACROBLOCKD *xd) {
vp9_inverse_transform_mby_4x4(xd);
vp9_inverse_transform_mbuv_4x4(xd);
}
void vp9_inverse_transform_b_8x8(int16_t *input_dqcoeff, int16_t *output_coeff,
int pitch) {
vp9_short_idct8x8(input_dqcoeff, output_coeff, pitch);
}
void vp9_inverse_transform_mby_8x8(MACROBLOCKD *xd) {
int i;
BLOCKD *blockd = xd->block;
for (i = 0; i < 9; i += 8) {
TX_TYPE tx_type = get_tx_type_8x8(xd, &xd->block[i]);
if (tx_type != DCT_DCT) {
vp9_short_iht8x8(xd->block[i].dqcoeff, xd->block[i].diff,
32, tx_type);
} else {
vp9_inverse_transform_b_8x8(&blockd[i].dqcoeff[0],
&blockd[i].diff[0], 32);
}
}
for (i = 2; i < 11; i += 8) {
TX_TYPE tx_type = get_tx_type_8x8(xd, &xd->block[i]);
if (tx_type != DCT_DCT) {
vp9_short_iht8x8(xd->block[i + 2].dqcoeff, xd->block[i].diff,
32, tx_type);
} else {
vp9_inverse_transform_b_8x8(&blockd[i + 2].dqcoeff[0],
&blockd[i].diff[0], 32);
}
}
}
void vp9_inverse_transform_mbuv_8x8(MACROBLOCKD *xd) {
int i;
BLOCKD *blockd = xd->block;
for (i = 16; i < 24; i += 4) {
vp9_inverse_transform_b_8x8(&blockd[i].dqcoeff[0],
&blockd[i].diff[0], 16);
}
}
void vp9_inverse_transform_mb_8x8(MACROBLOCKD *xd) {
vp9_inverse_transform_mby_8x8(xd);
vp9_inverse_transform_mbuv_8x8(xd);
}
void vp9_inverse_transform_b_16x16(int16_t *input_dqcoeff,
int16_t *output_coeff, int pitch) {
vp9_short_idct16x16(input_dqcoeff, output_coeff, pitch);
}
void vp9_inverse_transform_mby_16x16(MACROBLOCKD *xd) {
BLOCKD *bd = &xd->block[0];
TX_TYPE tx_type = get_tx_type_16x16(xd, bd);
if (tx_type != DCT_DCT) {
vp9_short_iht16x16(bd->dqcoeff, bd->diff, 32, tx_type);
} else {
vp9_inverse_transform_b_16x16(&xd->block[0].dqcoeff[0],
&xd->block[0].diff[0], 32);
}
}
void vp9_inverse_transform_mb_16x16(MACROBLOCKD *xd) {
vp9_inverse_transform_mby_16x16(xd);
vp9_inverse_transform_mbuv_8x8(xd);
}
void vp9_inverse_transform_sby_32x32(SUPERBLOCKD *xd_sb) {
vp9_short_idct32x32(xd_sb->dqcoeff, xd_sb->diff, 64);
}
void vp9_inverse_transform_sbuv_16x16(SUPERBLOCKD *xd_sb) {
vp9_inverse_transform_b_16x16(xd_sb->dqcoeff + 1024,
xd_sb->diff + 1024, 32);
vp9_inverse_transform_b_16x16(xd_sb->dqcoeff + 1280,
xd_sb->diff + 1280, 32);
}
|
