Line data Source code
1 : /*
2 : * Copyright (c) 2016, Alliance for Open Media. All rights reserved
3 : *
4 : * This source code is subject to the terms of the BSD 2 Clause License and
5 : * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
6 : * was not distributed with this source code in the LICENSE file, you can
7 : * obtain it at www.aomedia.org/license/software. If the Alliance for Open
8 : * Media Patent License 1.0 was not distributed with this source code in the
9 : * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
10 : */
11 :
12 : #include "aom_dsp/aom_dsp_common.h"
13 : #include "aom_mem/aom_mem.h"
14 : #include "aom_ports/mem.h"
15 :
16 : #include "av1/common/common.h"
17 : #include "av1/encoder/extend.h"
18 :
19 0 : static void copy_and_extend_plane(const uint8_t *src, int src_pitch,
20 : uint8_t *dst, int dst_pitch, int w, int h,
21 : int extend_top, int extend_left,
22 : int extend_bottom, int extend_right) {
23 : int i, linesize;
24 :
25 : // copy the left and right most columns out
26 0 : const uint8_t *src_ptr1 = src;
27 0 : const uint8_t *src_ptr2 = src + w - 1;
28 0 : uint8_t *dst_ptr1 = dst - extend_left;
29 0 : uint8_t *dst_ptr2 = dst + w;
30 :
31 0 : for (i = 0; i < h; i++) {
32 0 : memset(dst_ptr1, src_ptr1[0], extend_left);
33 0 : memcpy(dst_ptr1 + extend_left, src_ptr1, w);
34 0 : memset(dst_ptr2, src_ptr2[0], extend_right);
35 0 : src_ptr1 += src_pitch;
36 0 : src_ptr2 += src_pitch;
37 0 : dst_ptr1 += dst_pitch;
38 0 : dst_ptr2 += dst_pitch;
39 : }
40 :
41 : // Now copy the top and bottom lines into each line of the respective
42 : // borders
43 0 : src_ptr1 = dst - extend_left;
44 0 : src_ptr2 = dst + dst_pitch * (h - 1) - extend_left;
45 0 : dst_ptr1 = dst + dst_pitch * (-extend_top) - extend_left;
46 0 : dst_ptr2 = dst + dst_pitch * (h)-extend_left;
47 0 : linesize = extend_left + extend_right + w;
48 :
49 0 : for (i = 0; i < extend_top; i++) {
50 0 : memcpy(dst_ptr1, src_ptr1, linesize);
51 0 : dst_ptr1 += dst_pitch;
52 : }
53 :
54 0 : for (i = 0; i < extend_bottom; i++) {
55 0 : memcpy(dst_ptr2, src_ptr2, linesize);
56 0 : dst_ptr2 += dst_pitch;
57 : }
58 0 : }
59 :
60 : #if CONFIG_HIGHBITDEPTH
61 0 : static void highbd_copy_and_extend_plane(const uint8_t *src8, int src_pitch,
62 : uint8_t *dst8, int dst_pitch, int w,
63 : int h, int extend_top, int extend_left,
64 : int extend_bottom, int extend_right) {
65 : int i, linesize;
66 0 : uint16_t *src = CONVERT_TO_SHORTPTR(src8);
67 0 : uint16_t *dst = CONVERT_TO_SHORTPTR(dst8);
68 :
69 : // copy the left and right most columns out
70 0 : const uint16_t *src_ptr1 = src;
71 0 : const uint16_t *src_ptr2 = src + w - 1;
72 0 : uint16_t *dst_ptr1 = dst - extend_left;
73 0 : uint16_t *dst_ptr2 = dst + w;
74 :
75 0 : for (i = 0; i < h; i++) {
76 0 : aom_memset16(dst_ptr1, src_ptr1[0], extend_left);
77 0 : memcpy(dst_ptr1 + extend_left, src_ptr1, w * sizeof(src_ptr1[0]));
78 0 : aom_memset16(dst_ptr2, src_ptr2[0], extend_right);
79 0 : src_ptr1 += src_pitch;
80 0 : src_ptr2 += src_pitch;
81 0 : dst_ptr1 += dst_pitch;
82 0 : dst_ptr2 += dst_pitch;
83 : }
84 :
85 : // Now copy the top and bottom lines into each line of the respective
86 : // borders
87 0 : src_ptr1 = dst - extend_left;
88 0 : src_ptr2 = dst + dst_pitch * (h - 1) - extend_left;
89 0 : dst_ptr1 = dst + dst_pitch * (-extend_top) - extend_left;
90 0 : dst_ptr2 = dst + dst_pitch * (h)-extend_left;
91 0 : linesize = extend_left + extend_right + w;
92 :
93 0 : for (i = 0; i < extend_top; i++) {
94 0 : memcpy(dst_ptr1, src_ptr1, linesize * sizeof(src_ptr1[0]));
95 0 : dst_ptr1 += dst_pitch;
96 : }
97 :
98 0 : for (i = 0; i < extend_bottom; i++) {
99 0 : memcpy(dst_ptr2, src_ptr2, linesize * sizeof(src_ptr2[0]));
100 0 : dst_ptr2 += dst_pitch;
101 : }
102 0 : }
103 : #endif // CONFIG_HIGHBITDEPTH
104 :
105 0 : void av1_copy_and_extend_frame(const YV12_BUFFER_CONFIG *src,
106 : YV12_BUFFER_CONFIG *dst) {
107 : // Extend src frame in buffer
108 : // Altref filtering assumes 16 pixel extension
109 0 : const int et_y = 16;
110 0 : const int el_y = 16;
111 : // Motion estimation may use src block variance with the block size up
112 : // to 64x64, so the right and bottom need to be extended to 64 multiple
113 : // or up to 16, whichever is greater.
114 0 : const int er_y =
115 0 : AOMMAX(src->y_width + 16, ALIGN_POWER_OF_TWO(src->y_width, 6)) -
116 0 : src->y_crop_width;
117 0 : const int eb_y =
118 0 : AOMMAX(src->y_height + 16, ALIGN_POWER_OF_TWO(src->y_height, 6)) -
119 0 : src->y_crop_height;
120 0 : const int uv_width_subsampling = (src->uv_width != src->y_width);
121 0 : const int uv_height_subsampling = (src->uv_height != src->y_height);
122 0 : const int et_uv = et_y >> uv_height_subsampling;
123 0 : const int el_uv = el_y >> uv_width_subsampling;
124 0 : const int eb_uv = eb_y >> uv_height_subsampling;
125 0 : const int er_uv = er_y >> uv_width_subsampling;
126 :
127 : #if CONFIG_HIGHBITDEPTH
128 0 : if (src->flags & YV12_FLAG_HIGHBITDEPTH) {
129 0 : highbd_copy_and_extend_plane(src->y_buffer, src->y_stride, dst->y_buffer,
130 : dst->y_stride, src->y_crop_width,
131 : src->y_crop_height, et_y, el_y, eb_y, er_y);
132 :
133 0 : highbd_copy_and_extend_plane(
134 0 : src->u_buffer, src->uv_stride, dst->u_buffer, dst->uv_stride,
135 : src->uv_crop_width, src->uv_crop_height, et_uv, el_uv, eb_uv, er_uv);
136 :
137 0 : highbd_copy_and_extend_plane(
138 0 : src->v_buffer, src->uv_stride, dst->v_buffer, dst->uv_stride,
139 : src->uv_crop_width, src->uv_crop_height, et_uv, el_uv, eb_uv, er_uv);
140 0 : return;
141 : }
142 : #endif // CONFIG_HIGHBITDEPTH
143 :
144 0 : copy_and_extend_plane(src->y_buffer, src->y_stride, dst->y_buffer,
145 : dst->y_stride, src->y_crop_width, src->y_crop_height,
146 : et_y, el_y, eb_y, er_y);
147 :
148 0 : copy_and_extend_plane(src->u_buffer, src->uv_stride, dst->u_buffer,
149 : dst->uv_stride, src->uv_crop_width, src->uv_crop_height,
150 : et_uv, el_uv, eb_uv, er_uv);
151 :
152 0 : copy_and_extend_plane(src->v_buffer, src->uv_stride, dst->v_buffer,
153 : dst->uv_stride, src->uv_crop_width, src->uv_crop_height,
154 : et_uv, el_uv, eb_uv, er_uv);
155 : }
156 :
157 0 : void av1_copy_and_extend_frame_with_rect(const YV12_BUFFER_CONFIG *src,
158 : YV12_BUFFER_CONFIG *dst, int srcy,
159 : int srcx, int srch, int srcw) {
160 : // If the side is not touching the bounder then don't extend.
161 0 : const int et_y = srcy ? 0 : dst->border;
162 0 : const int el_y = srcx ? 0 : dst->border;
163 0 : const int eb_y = srcy + srch != src->y_height
164 : ? 0
165 0 : : dst->border + dst->y_height - src->y_height;
166 0 : const int er_y = srcx + srcw != src->y_width
167 : ? 0
168 0 : : dst->border + dst->y_width - src->y_width;
169 0 : const int src_y_offset = srcy * src->y_stride + srcx;
170 0 : const int dst_y_offset = srcy * dst->y_stride + srcx;
171 :
172 0 : const int et_uv = ROUND_POWER_OF_TWO(et_y, 1);
173 0 : const int el_uv = ROUND_POWER_OF_TWO(el_y, 1);
174 0 : const int eb_uv = ROUND_POWER_OF_TWO(eb_y, 1);
175 0 : const int er_uv = ROUND_POWER_OF_TWO(er_y, 1);
176 0 : const int src_uv_offset = ((srcy * src->uv_stride) >> 1) + (srcx >> 1);
177 0 : const int dst_uv_offset = ((srcy * dst->uv_stride) >> 1) + (srcx >> 1);
178 0 : const int srch_uv = ROUND_POWER_OF_TWO(srch, 1);
179 0 : const int srcw_uv = ROUND_POWER_OF_TWO(srcw, 1);
180 :
181 0 : copy_and_extend_plane(src->y_buffer + src_y_offset, src->y_stride,
182 0 : dst->y_buffer + dst_y_offset, dst->y_stride, srcw, srch,
183 : et_y, el_y, eb_y, er_y);
184 :
185 0 : copy_and_extend_plane(src->u_buffer + src_uv_offset, src->uv_stride,
186 0 : dst->u_buffer + dst_uv_offset, dst->uv_stride, srcw_uv,
187 : srch_uv, et_uv, el_uv, eb_uv, er_uv);
188 :
189 0 : copy_and_extend_plane(src->v_buffer + src_uv_offset, src->uv_stride,
190 0 : dst->v_buffer + dst_uv_offset, dst->uv_stride, srcw_uv,
191 : srch_uv, et_uv, el_uv, eb_uv, er_uv);
192 0 : }
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