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
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
/*
* 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_mem/vpx_mem.h"
#include "vp9/common/vp9_common.h"
#include "vp9/common/vp9_extend.h"
static void copy_and_extend_plane(const uint8_t *src, int src_pitch,
uint8_t *dst, int dst_pitch,
int w, int h,
int extend_top, int extend_left,
int extend_bottom, int extend_right) {
int i, linesize;
// copy the left and right most columns out
const uint8_t *src_ptr1 = src;
const uint8_t *src_ptr2 = src + w - 1;
uint8_t *dst_ptr1 = dst - extend_left;
uint8_t *dst_ptr2 = dst + w;
for (i = 0; i < h; i++) {
vpx_memset(dst_ptr1, src_ptr1[0], extend_left);
vpx_memcpy(dst_ptr1 + extend_left, src_ptr1, w);
vpx_memset(dst_ptr2, src_ptr2[0], extend_right);
src_ptr1 += src_pitch;
src_ptr2 += src_pitch;
dst_ptr1 += dst_pitch;
dst_ptr2 += dst_pitch;
}
// Now copy the top and bottom lines into each line of the respective
// borders
src_ptr1 = dst - extend_left;
src_ptr2 = dst + dst_pitch * (h - 1) - extend_left;
dst_ptr1 = dst + dst_pitch * (-extend_top) - extend_left;
dst_ptr2 = dst + dst_pitch * (h) - extend_left;
linesize = extend_left + extend_right + w;
for (i = 0; i < extend_top; i++) {
vpx_memcpy(dst_ptr1, src_ptr1, linesize);
dst_ptr1 += dst_pitch;
}
for (i = 0; i < extend_bottom; i++) {
vpx_memcpy(dst_ptr2, src_ptr2, linesize);
dst_ptr2 += dst_pitch;
}
}
void vp9_copy_and_extend_frame(const YV12_BUFFER_CONFIG *src,
YV12_BUFFER_CONFIG *dst) {
// Extend src frame in buffer
// Altref filtering assumes 16 pixel extension
const int et_y = 16;
const int el_y = 16;
// Motion estimation may use src block variance with the block size up
// to 64x64, so the right and bottom need to be extended to 64 multiple
// or up to 16, whichever is greater.
const int eb_y = MAX(ALIGN_POWER_OF_TWO(src->y_width, 6) - src->y_width,
16);
const int er_y = MAX(ALIGN_POWER_OF_TWO(src->y_height, 6) - src->y_height,
16);
const int uv_width_subsampling = (src->uv_width != src->y_width);
const int uv_height_subsampling = (src->uv_height != src->y_height);
const int et_uv = et_y >> uv_height_subsampling;
const int el_uv = el_y >> uv_width_subsampling;
const int eb_uv = eb_y >> uv_height_subsampling;
const int er_uv = er_y >> uv_width_subsampling;
#if CONFIG_ALPHA
const int et_a = dst->border >> (dst->alpha_height != dst->y_height);
const int el_a = dst->border >> (dst->alpha_width != dst->y_width);
const int eb_a = et_a + dst->alpha_height - src->alpha_height;
const int er_a = el_a + dst->alpha_width - src->alpha_width;
copy_and_extend_plane(src->alpha_buffer, src->alpha_stride,
dst->alpha_buffer, dst->alpha_stride,
src->alpha_width, src->alpha_height,
et_a, el_a, eb_a, er_a);
#endif
copy_and_extend_plane(src->y_buffer, src->y_stride,
dst->y_buffer, dst->y_stride,
src->y_width, src->y_height,
et_y, el_y, eb_y, er_y);
copy_and_extend_plane(src->u_buffer, src->uv_stride,
dst->u_buffer, dst->uv_stride,
src->uv_width, src->uv_height,
et_uv, el_uv, eb_uv, er_uv);
copy_and_extend_plane(src->v_buffer, src->uv_stride,
dst->v_buffer, dst->uv_stride,
src->uv_width, src->uv_height,
et_uv, el_uv, eb_uv, er_uv);
}
void vp9_copy_and_extend_frame_with_rect(const YV12_BUFFER_CONFIG *src,
YV12_BUFFER_CONFIG *dst,
int srcy, int srcx,
int srch, int srcw) {
// If the side is not touching the bounder then don't extend.
const int et_y = srcy ? 0 : dst->border;
const int el_y = srcx ? 0 : dst->border;
const int eb_y = srcy + srch != src->y_height ? 0 :
dst->border + dst->y_height - src->y_height;
const int er_y = srcx + srcw != src->y_width ? 0 :
dst->border + dst->y_width - src->y_width;
const int src_y_offset = srcy * src->y_stride + srcx;
const int dst_y_offset = srcy * dst->y_stride + srcx;
const int et_uv = ROUND_POWER_OF_TWO(et_y, 1);
const int el_uv = ROUND_POWER_OF_TWO(el_y, 1);
const int eb_uv = ROUND_POWER_OF_TWO(eb_y, 1);
const int er_uv = ROUND_POWER_OF_TWO(er_y, 1);
const int src_uv_offset = ((srcy * src->uv_stride) >> 1) + (srcx >> 1);
const int dst_uv_offset = ((srcy * dst->uv_stride) >> 1) + (srcx >> 1);
const int srch_uv = ROUND_POWER_OF_TWO(srch, 1);
const int srcw_uv = ROUND_POWER_OF_TWO(srcw, 1);
copy_and_extend_plane(src->y_buffer + src_y_offset, src->y_stride,
dst->y_buffer + dst_y_offset, dst->y_stride,
srcw, srch,
et_y, el_y, eb_y, er_y);
copy_and_extend_plane(src->u_buffer + src_uv_offset, src->uv_stride,
dst->u_buffer + dst_uv_offset, dst->uv_stride,
srcw_uv, srch_uv,
et_uv, el_uv, eb_uv, er_uv);
copy_and_extend_plane(src->v_buffer + src_uv_offset, src->uv_stride,
dst->v_buffer + dst_uv_offset, dst->uv_stride,
srcw_uv, srch_uv,
et_uv, el_uv, eb_uv, er_uv);
}
|
