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
|
/*
* 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 "./vpx_config.h"
#include "vp9_rtcd.h"
#include "vp9/encoder/vp9_quantize.h"
#include "vp9/common/vp9_reconintra.h"
#include "vp9/encoder/vp9_encodemb.h"
#include "vp9/common/vp9_invtrans.h"
#include "vp9/encoder/vp9_encodeintra.h"
static void encode_intra4x4block(MACROBLOCK *x, int ib, BLOCK_SIZE_TYPE bs);
int vp9_encode_intra(VP9_COMP *cpi, MACROBLOCK *x, int use_16x16_pred) {
MB_MODE_INFO * mbmi = &x->e_mbd.mode_info_context->mbmi;
(void) cpi;
if (use_16x16_pred) {
mbmi->mode = DC_PRED;
mbmi->uv_mode = DC_PRED;
mbmi->ref_frame = INTRA_FRAME;
vp9_encode_intra16x16mby(&cpi->common, x);
} else {
int i;
for (i = 0; i < 16; i++)
encode_intra4x4block(x, i, BLOCK_SIZE_MB16X16);
}
return vp9_get_mb_ss(x->plane[0].src_diff);
}
// This function is used only by the firstpass encoding.
static void encode_intra4x4block(MACROBLOCK *x, int ib,
BLOCK_SIZE_TYPE bsize) {
MACROBLOCKD * const xd = &x->e_mbd;
uint8_t* const src =
raster_block_offset_uint8(xd, bsize, 0, ib,
x->plane[0].src.buf, x->plane[0].src.stride);
uint8_t* const dst =
raster_block_offset_uint8(xd, bsize, 0, ib,
xd->plane[0].dst.buf, xd->plane[0].dst.stride);
int16_t* const src_diff =
raster_block_offset_int16(xd, bsize, 0, ib,
x->plane[0].src_diff);
int16_t* const coeff = BLOCK_OFFSET(x->plane[0].coeff, ib, 16);
const int bwl = b_width_log2(bsize), bhl = b_height_log2(bsize);
assert(ib < (1 << (bwl + bhl)));
vp9_intra4x4_predict(&x->e_mbd, ib, bsize, DC_PRED,
dst, xd->plane[0].dst.stride);
vp9_subtract_block(4, 4, src_diff, 4 << bwl,
src, x->plane[0].src.stride,
dst, xd->plane[0].dst.stride);
x->fwd_txm4x4(src_diff, coeff, 8 << bwl);
x->quantize_b_4x4(x, ib, DCT_DCT, 16);
vp9_inverse_transform_b_4x4_add(&x->e_mbd, xd->plane[0].eobs[ib],
BLOCK_OFFSET(xd->plane[0].dqcoeff, ib, 16),
dst, xd->plane[0].dst.stride);
}
void vp9_encode_intra16x16mby(VP9_COMMON *const cm, MACROBLOCK *x) {
MACROBLOCKD *xd = &x->e_mbd;
vp9_build_intra_predictors_sby_s(xd, BLOCK_SIZE_MB16X16);
vp9_encode_sby(cm, x, BLOCK_SIZE_MB16X16);
}
void vp9_encode_intra16x16mbuv(VP9_COMMON *const cm, MACROBLOCK *x) {
MACROBLOCKD *xd = &x->e_mbd;
vp9_build_intra_predictors_sbuv_s(xd, BLOCK_SIZE_MB16X16);
vp9_encode_sbuv(cm, x, BLOCK_SIZE_MB16X16);
}
|
