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1 | /* | ||
2 | * Copyright (c) 2016 Ronald S. Bultje <rsbultje@gmail.com> | ||
3 | * | ||
4 | * This file is part of FFmpeg. | ||
5 | * | ||
6 | * FFmpeg is free software; you can redistribute it and/or | ||
7 | * modify it under the terms of the GNU Lesser General Public | ||
8 | * License as published by the Free Software Foundation; either | ||
9 | * version 2.1 of the License, or (at your option) any later version. | ||
10 | * | ||
11 | * FFmpeg is distributed in the hope that it will be useful, | ||
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
14 | * Lesser General Public License for more details. | ||
15 | * | ||
16 | * You should have received a copy of the GNU Lesser General Public | ||
17 | * License along with FFmpeg; if not, write to the Free Software | ||
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
19 | */ | ||
20 | |||
21 | #include "libavutil/avassert.h" | ||
22 | |||
23 | #undef avg | ||
24 | #undef ss | ||
25 | |||
26 | #if SS_W == 0 | ||
27 | #define ss 444 | ||
28 | #define avg(a,b,c,d) (a) | ||
29 | #elif SS_H == 0 | ||
30 | #define ss 422 | ||
31 | #define avg(a,b,c,d) (((a) + (b) + 1) >> 1) | ||
32 | #else | ||
33 | #define ss 420 | ||
34 | #define avg(a,b,c,d) (((a) + (b) + (c) + (d) + 2) >> 2) | ||
35 | #endif | ||
36 | |||
37 | #undef fn | ||
38 | #undef fn2 | ||
39 | #undef fn3 | ||
40 | #define fn3(a,b,c) a##_##c##p##b##_c | ||
41 | #define fn2(a,b,c) fn3(a,b,c) | ||
42 | #define fn(a) fn2(a, BIT_DEPTH, ss) | ||
43 | |||
44 | #undef pixel | ||
45 | #undef av_clip_pixel | ||
46 | #if BIT_DEPTH == 8 | ||
47 | #define pixel uint8_t | ||
48 | #define av_clip_pixel(x) av_clip_uint8(x) | ||
49 | #else | ||
50 | #define pixel uint16_t | ||
51 | #define av_clip_pixel(x) av_clip_uintp2(x, BIT_DEPTH) | ||
52 | #endif | ||
53 | |||
54 | 54 | static void fn(yuv2rgb)(int16_t *rgb[3], ptrdiff_t rgb_stride, | |
55 | uint8_t *_yuv[3], const ptrdiff_t yuv_stride[3], | ||
56 | int w, int h, const int16_t yuv2rgb_coeffs[3][3][8], | ||
57 | const int16_t yuv_offset[8]) | ||
58 | { | ||
59 | 54 | pixel **yuv = (pixel **) _yuv; | |
60 | 54 | const pixel *yuv0 = yuv[0], *yuv1 = yuv[1], *yuv2 = yuv[2]; | |
61 | 54 | int16_t *rgb0 = rgb[0], *rgb1 = rgb[1], *rgb2 = rgb[2]; | |
62 | int y, x; | ||
63 | 54 | int cy = yuv2rgb_coeffs[0][0][0]; | |
64 | 54 | int crv = yuv2rgb_coeffs[0][2][0]; | |
65 | 54 | int cgu = yuv2rgb_coeffs[1][1][0]; | |
66 | 54 | int cgv = yuv2rgb_coeffs[1][2][0]; | |
67 | 54 | int cbu = yuv2rgb_coeffs[2][1][0]; | |
68 | 54 | const int sh = BIT_DEPTH - 1, rnd = 1 << (sh - 1); | |
69 | 54 | const int uv_offset = 128 << (BIT_DEPTH - 8); | |
70 | |||
71 | av_assert2(yuv2rgb_coeffs[0][1][0] == 0); | ||
72 | av_assert2(yuv2rgb_coeffs[2][2][0] == 0); | ||
73 | av_assert2(yuv2rgb_coeffs[1][0][0] == cy && yuv2rgb_coeffs[2][0][0] == cy); | ||
74 | |||
75 | 54 | w = AV_CEIL_RSHIFT(w, SS_W); | |
76 | 54 | h = AV_CEIL_RSHIFT(h, SS_H); | |
77 |
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78 |
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131904 | for (x = 0; x < w; x++) { |
79 | 129024 | int y00 = yuv0[x << SS_W] - yuv_offset[0]; | |
80 | #if SS_W == 1 | ||
81 | 55296 | int y01 = yuv0[2 * x + 1] - yuv_offset[0]; | |
82 | #if SS_H == 1 | ||
83 | 18432 | int y10 = yuv0[yuv_stride[0] / sizeof(pixel) + 2 * x] - yuv_offset[0]; | |
84 | 18432 | int y11 = yuv0[yuv_stride[0] / sizeof(pixel) + 2 * x + 1] - yuv_offset[0]; | |
85 | #endif | ||
86 | #endif | ||
87 | 129024 | int u = yuv1[x] - uv_offset, v = yuv2[x] - uv_offset; | |
88 | |||
89 | 129024 | rgb0[x << SS_W] = av_clip_int16((y00 * cy + crv * v + rnd) >> sh); | |
90 | #if SS_W == 1 | ||
91 | 55296 | rgb0[2 * x + 1] = av_clip_int16((y01 * cy + crv * v + rnd) >> sh); | |
92 | #if SS_H == 1 | ||
93 | 18432 | rgb0[2 * x + rgb_stride] = av_clip_int16((y10 * cy + crv * v + rnd) >> sh); | |
94 | 18432 | rgb0[2 * x + rgb_stride + 1] = av_clip_int16((y11 * cy + crv * v + rnd) >> sh); | |
95 | #endif | ||
96 | #endif | ||
97 | |||
98 | 129024 | rgb1[x << SS_W] = av_clip_int16((y00 * cy + cgu * u + | |
99 | 129024 | cgv * v + rnd) >> sh); | |
100 | #if SS_W == 1 | ||
101 | 55296 | rgb1[2 * x + 1] = av_clip_int16((y01 * cy + cgu * u + | |
102 | 55296 | cgv * v + rnd) >> sh); | |
103 | #if SS_H == 1 | ||
104 | 18432 | rgb1[2 * x + rgb_stride] = av_clip_int16((y10 * cy + cgu * u + | |
105 | 18432 | cgv * v + rnd) >> sh); | |
106 | 18432 | rgb1[2 * x + rgb_stride + 1] = av_clip_int16((y11 * cy + cgu * u + | |
107 | 18432 | cgv * v + rnd) >> sh); | |
108 | #endif | ||
109 | #endif | ||
110 | |||
111 | 129024 | rgb2[x << SS_W] = av_clip_int16((y00 * cy + cbu * u + rnd) >> sh); | |
112 | #if SS_W == 1 | ||
113 | 55296 | rgb2[2 * x + 1] = av_clip_int16((y01 * cy + cbu * u + rnd) >> sh); | |
114 | #if SS_H == 1 | ||
115 | 18432 | rgb2[2 * x + rgb_stride] = av_clip_int16((y10 * cy + cbu * u + rnd) >> sh); | |
116 | 18432 | rgb2[2 * x + rgb_stride + 1] = av_clip_int16((y11 * cy + cbu * u + rnd) >> sh); | |
117 | #endif | ||
118 | #endif | ||
119 | } | ||
120 | |||
121 | 2880 | yuv0 += (yuv_stride[0] * (1 << SS_H)) / sizeof(pixel); | |
122 | 2880 | yuv1 += yuv_stride[1] / sizeof(pixel); | |
123 | 2880 | yuv2 += yuv_stride[2] / sizeof(pixel); | |
124 | 2880 | rgb0 += rgb_stride * (1 << SS_H); | |
125 | 2880 | rgb1 += rgb_stride * (1 << SS_H); | |
126 | 2880 | rgb2 += rgb_stride * (1 << SS_H); | |
127 | } | ||
128 | 54 | } | |
129 | |||
130 | 54 | static void fn(rgb2yuv)(uint8_t *_yuv[3], const ptrdiff_t yuv_stride[3], | |
131 | int16_t *rgb[3], ptrdiff_t s, | ||
132 | int w, int h, const int16_t rgb2yuv_coeffs[3][3][8], | ||
133 | const int16_t yuv_offset[8]) | ||
134 | { | ||
135 | 54 | pixel **yuv = (pixel **) _yuv; | |
136 | 54 | pixel *yuv0 = yuv[0], *yuv1 = yuv[1], *yuv2 = yuv[2]; | |
137 | 54 | const int16_t *rgb0 = rgb[0], *rgb1 = rgb[1], *rgb2 = rgb[2]; | |
138 | int y, x; | ||
139 | 54 | const int sh = 29 - BIT_DEPTH; | |
140 | 54 | const int rnd = 1 << (sh - 1); | |
141 | 54 | int cry = rgb2yuv_coeffs[0][0][0]; | |
142 | 54 | int cgy = rgb2yuv_coeffs[0][1][0]; | |
143 | 54 | int cby = rgb2yuv_coeffs[0][2][0]; | |
144 | 54 | int cru = rgb2yuv_coeffs[1][0][0]; | |
145 | 54 | int cgu = rgb2yuv_coeffs[1][1][0]; | |
146 | 54 | int cburv = rgb2yuv_coeffs[1][2][0]; | |
147 | 54 | int cgv = rgb2yuv_coeffs[2][1][0]; | |
148 | 54 | int cbv = rgb2yuv_coeffs[2][2][0]; | |
149 | 54 | ptrdiff_t s0 = yuv_stride[0] / sizeof(pixel); | |
150 | 54 | const int uv_offset = 128 << (BIT_DEPTH - 8); | |
151 | |||
152 | av_assert2(rgb2yuv_coeffs[1][2][0] == rgb2yuv_coeffs[2][0][0]); | ||
153 | 54 | w = AV_CEIL_RSHIFT(w, SS_W); | |
154 | 54 | h = AV_CEIL_RSHIFT(h, SS_H); | |
155 |
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157 | 129024 | int r00 = rgb0[x << SS_W], g00 = rgb1[x << SS_W], b00 = rgb2[x << SS_W]; | |
158 | #if SS_W == 1 | ||
159 | 55296 | int r01 = rgb0[x * 2 + 1], g01 = rgb1[x * 2 + 1], b01 = rgb2[x * 2 + 1]; | |
160 | #if SS_H == 1 | ||
161 | 18432 | int r10 = rgb0[x * 2 + 0 + s], g10 = rgb1[x * 2 + 0 + s], b10 = rgb2[x * 2 + 0 + s]; | |
162 | 18432 | int r11 = rgb0[x * 2 + 1 + s], g11 = rgb1[x * 2 + 1 + s], b11 = rgb2[x * 2 + 1 + s]; | |
163 | #endif | ||
164 | #endif | ||
165 | |||
166 | 129024 | yuv0[x << SS_W] = av_clip_pixel(yuv_offset[0] + | |
167 | ((r00 * cry + g00 * cgy + | ||
168 | b00 * cby + rnd) >> sh)); | ||
169 | #if SS_W == 1 | ||
170 | 55296 | yuv0[x * 2 + 1] = av_clip_pixel(yuv_offset[0] + | |
171 | ((r01 * cry + g01 * cgy + | ||
172 | b01 * cby + rnd) >> sh)); | ||
173 | #if SS_H == 1 | ||
174 | 18432 | yuv0[x * 2 + 0 + s0] = av_clip_pixel(yuv_offset[0] + | |
175 | ((r10 * cry + g10 * cgy + | ||
176 | b10 * cby + rnd) >> sh)); | ||
177 | 18432 | yuv0[x * 2 + 1 + s0] = av_clip_pixel(yuv_offset[0] + | |
178 | ((r11 * cry + g11 * cgy + | ||
179 | b11 * cby + rnd) >> sh)); | ||
180 | #endif | ||
181 | #endif | ||
182 | |||
183 | 129024 | yuv1[x] = av_clip_pixel(uv_offset + | |
184 | ((avg(r00, r01, r10, r11) * cru + | ||
185 | avg(g00, g01, g10, g11) * cgu + | ||
186 | avg(b00, b01, b10, b11) * cburv + rnd) >> sh)); | ||
187 | 129024 | yuv2[x] = av_clip_pixel(uv_offset + | |
188 | ((avg(r00, r01, r10, r11) * cburv + | ||
189 | avg(g00, g01, g10, g11) * cgv + | ||
190 | avg(b00, b01, b10, b11) * cbv + rnd) >> sh)); | ||
191 | } | ||
192 | |||
193 | 2880 | yuv0 += s0 * (1 << SS_H); | |
194 | 2880 | yuv1 += yuv_stride[1] / sizeof(pixel); | |
195 | 2880 | yuv2 += yuv_stride[2] / sizeof(pixel); | |
196 | 2880 | rgb0 += s * (1 << SS_H); | |
197 | 2880 | rgb1 += s * (1 << SS_H); | |
198 | 2880 | rgb2 += s * (1 << SS_H); | |
199 | } | ||
200 | 54 | } | |
201 | |||
202 | /* floyd-steinberg dithering - for any mid-top pixel A in a 3x2 block of pixels: | ||
203 | * 1 A 2 | ||
204 | * 3 4 5 | ||
205 | * the rounding error is distributed over the neighbouring pixels: | ||
206 | * 2: 7/16th, 3: 3/16th, 4: 5/16th and 5: 1/16th | ||
207 | */ | ||
208 | ✗ | static void fn(rgb2yuv_fsb)(uint8_t *_yuv[3], const ptrdiff_t yuv_stride[3], | |
209 | int16_t *rgb[3], ptrdiff_t s, | ||
210 | int w, int h, const int16_t rgb2yuv_coeffs[3][3][8], | ||
211 | const int16_t yuv_offset[8], | ||
212 | int *rnd_scratch[3][2]) | ||
213 | { | ||
214 | ✗ | pixel **yuv = (pixel **) _yuv; | |
215 | ✗ | pixel *yuv0 = yuv[0], *yuv1 = yuv[1], *yuv2 = yuv[2]; | |
216 | ✗ | const int16_t *rgb0 = rgb[0], *rgb1 = rgb[1], *rgb2 = rgb[2]; | |
217 | int y, x; | ||
218 | ✗ | const int sh = 29 - BIT_DEPTH; | |
219 | ✗ | const int rnd = 1 << (sh - 1); | |
220 | ✗ | int cry = rgb2yuv_coeffs[0][0][0]; | |
221 | ✗ | int cgy = rgb2yuv_coeffs[0][1][0]; | |
222 | ✗ | int cby = rgb2yuv_coeffs[0][2][0]; | |
223 | ✗ | int cru = rgb2yuv_coeffs[1][0][0]; | |
224 | ✗ | int cgu = rgb2yuv_coeffs[1][1][0]; | |
225 | ✗ | int cburv = rgb2yuv_coeffs[1][2][0]; | |
226 | ✗ | int cgv = rgb2yuv_coeffs[2][1][0]; | |
227 | ✗ | int cbv = rgb2yuv_coeffs[2][2][0]; | |
228 | ✗ | ptrdiff_t s0 = yuv_stride[0] / sizeof(pixel); | |
229 | ✗ | const int uv_offset = 128 << (BIT_DEPTH - 8); | |
230 | ✗ | unsigned mask = (1 << sh) - 1; | |
231 | |||
232 | ✗ | for (x = 0; x < w; x++) { | |
233 | ✗ | rnd_scratch[0][0][x] = | |
234 | ✗ | rnd_scratch[0][1][x] = rnd; | |
235 | } | ||
236 | av_assert2(rgb2yuv_coeffs[1][2][0] == rgb2yuv_coeffs[2][0][0]); | ||
237 | ✗ | w = AV_CEIL_RSHIFT(w, SS_W); | |
238 | ✗ | h = AV_CEIL_RSHIFT(h, SS_H); | |
239 | ✗ | for (x = 0; x < w; x++) { | |
240 | ✗ | rnd_scratch[1][0][x] = | |
241 | ✗ | rnd_scratch[1][1][x] = | |
242 | ✗ | rnd_scratch[2][0][x] = | |
243 | ✗ | rnd_scratch[2][1][x] = rnd; | |
244 | } | ||
245 | ✗ | for (y = 0; y < h; y++) { | |
246 | ✗ | for (x = 0; x < w; x++) { | |
247 | ✗ | int r00 = rgb0[x << SS_W], g00 = rgb1[x << SS_W], b00 = rgb2[x << SS_W]; | |
248 | int y00; | ||
249 | #if SS_W == 1 | ||
250 | ✗ | int r01 = rgb0[x * 2 + 1], g01 = rgb1[x * 2 + 1], b01 = rgb2[x * 2 + 1]; | |
251 | int y01; | ||
252 | #if SS_H == 1 | ||
253 | ✗ | int r10 = rgb0[x * 2 + 0 + s], g10 = rgb1[x * 2 + 0 + s], b10 = rgb2[x * 2 + 0 + s]; | |
254 | ✗ | int r11 = rgb0[x * 2 + 1 + s], g11 = rgb1[x * 2 + 1 + s], b11 = rgb2[x * 2 + 1 + s]; | |
255 | int y10, y11; | ||
256 | #endif | ||
257 | #endif | ||
258 | int u, v, diff; | ||
259 | |||
260 | ✗ | y00 = r00 * cry + g00 * cgy + b00 * cby + rnd_scratch[0][y & !SS_H][x << SS_W]; | |
261 | ✗ | diff = (y00 & mask) - rnd; | |
262 | ✗ | yuv0[x << SS_W] = av_clip_pixel(yuv_offset[0] + (y00 >> sh)); | |
263 | ✗ | rnd_scratch[0][ (y & !SS_H)][(x << SS_W) + 1] += (diff * 7 + 8) >> 4; | |
264 | ✗ | rnd_scratch[0][!(y & !SS_H)][(x << SS_W) - 1] += (diff * 3 + 8) >> 4; | |
265 | ✗ | rnd_scratch[0][!(y & !SS_H)][(x << SS_W) + 0] += (diff * 5 + 8) >> 4; | |
266 | ✗ | rnd_scratch[0][!(y & !SS_H)][(x << SS_W) + 1] += (diff * 1 + 8) >> 4; | |
267 | ✗ | rnd_scratch[0][ (y & !SS_H)][(x << SS_W) + 0] = rnd; | |
268 | #if SS_W == 1 | ||
269 | ✗ | y01 = r01 * cry + g01 * cgy + b01 * cby + rnd_scratch[0][y & !SS_H][x * 2 + 1]; | |
270 | ✗ | diff = (y01 & mask) - rnd; | |
271 | ✗ | yuv0[x * 2 + 1] = av_clip_pixel(yuv_offset[0] + (y01 >> sh)); | |
272 | ✗ | rnd_scratch[0][ (y & !SS_H)][x * 2 + 2] += (diff * 7 + 8) >> 4; | |
273 | ✗ | rnd_scratch[0][!(y & !SS_H)][x * 2 + 0] += (diff * 3 + 8) >> 4; | |
274 | ✗ | rnd_scratch[0][!(y & !SS_H)][x * 2 + 1] += (diff * 5 + 8) >> 4; | |
275 | ✗ | rnd_scratch[0][!(y & !SS_H)][x * 2 + 2] += (diff * 1 + 8) >> 4; | |
276 | ✗ | rnd_scratch[0][ (y & !SS_H)][x * 2 + 1] = rnd; | |
277 | #if SS_H == 1 | ||
278 | ✗ | y10 = r10 * cry + g10 * cgy + b10 * cby + rnd_scratch[0][1][x * 2 + 0]; | |
279 | ✗ | diff = (y10 & mask) - rnd; | |
280 | ✗ | yuv0[x * 2 + 0 + s0] = av_clip_pixel(yuv_offset[0] + (y10 >> sh)); | |
281 | ✗ | rnd_scratch[0][1][x * 2 + 1] += (diff * 7 + 8) >> 4; | |
282 | ✗ | rnd_scratch[0][0][x * 2 - 1] += (diff * 3 + 8) >> 4; | |
283 | ✗ | rnd_scratch[0][0][x * 2 + 0] += (diff * 5 + 8) >> 4; | |
284 | ✗ | rnd_scratch[0][0][x * 2 + 1] += (diff * 1 + 8) >> 4; | |
285 | ✗ | rnd_scratch[0][1][x * 2 + 0] = rnd; | |
286 | |||
287 | ✗ | y11 = r11 * cry + g11 * cgy + b11 * cby + rnd_scratch[0][1][x * 2 + 1]; | |
288 | ✗ | diff = (y11 & mask) - rnd; | |
289 | ✗ | yuv0[x * 2 + 1 + s0] = av_clip_pixel(yuv_offset[0] + (y11 >> sh)); | |
290 | ✗ | rnd_scratch[0][1][x * 2 + 2] += (diff * 7 + 8) >> 4; | |
291 | ✗ | rnd_scratch[0][0][x * 2 + 0] += (diff * 3 + 8) >> 4; | |
292 | ✗ | rnd_scratch[0][0][x * 2 + 1] += (diff * 5 + 8) >> 4; | |
293 | ✗ | rnd_scratch[0][0][x * 2 + 2] += (diff * 1 + 8) >> 4; | |
294 | ✗ | rnd_scratch[0][1][x * 2 + 1] = rnd; | |
295 | #endif | ||
296 | #endif | ||
297 | |||
298 | ✗ | u = avg(r00, r01, r10, r11) * cru + | |
299 | ✗ | avg(g00, g01, g10, g11) * cgu + | |
300 | ✗ | avg(b00, b01, b10, b11) * cburv + rnd_scratch[1][y & 1][x]; | |
301 | ✗ | diff = (u & mask) - rnd; | |
302 | ✗ | yuv1[x] = av_clip_pixel(uv_offset + (u >> sh)); | |
303 | ✗ | rnd_scratch[1][ (y & 1)][x + 1] += (diff * 7 + 8) >> 4; | |
304 | ✗ | rnd_scratch[1][!(y & 1)][x - 1] += (diff * 3 + 8) >> 4; | |
305 | ✗ | rnd_scratch[1][!(y & 1)][x + 0] += (diff * 5 + 8) >> 4; | |
306 | ✗ | rnd_scratch[1][!(y & 1)][x + 1] += (diff * 1 + 8) >> 4; | |
307 | ✗ | rnd_scratch[1][ (y & 1)][x + 0] = rnd; | |
308 | |||
309 | ✗ | v = avg(r00, r01, r10, r11) * cburv + | |
310 | ✗ | avg(g00, g01, g10, g11) * cgv + | |
311 | ✗ | avg(b00, b01, b10, b11) * cbv + rnd_scratch[2][y & 1][x]; | |
312 | ✗ | diff = (v & mask) - rnd; | |
313 | ✗ | yuv2[x] = av_clip_pixel(uv_offset + (v >> sh)); | |
314 | ✗ | rnd_scratch[2][ (y & 1)][x + 1] += (diff * 7 + 8) >> 4; | |
315 | ✗ | rnd_scratch[2][!(y & 1)][x - 1] += (diff * 3 + 8) >> 4; | |
316 | ✗ | rnd_scratch[2][!(y & 1)][x + 0] += (diff * 5 + 8) >> 4; | |
317 | ✗ | rnd_scratch[2][!(y & 1)][x + 1] += (diff * 1 + 8) >> 4; | |
318 | ✗ | rnd_scratch[2][ (y & 1)][x + 0] = rnd; | |
319 | } | ||
320 | |||
321 | ✗ | yuv0 += s0 * (1 << SS_H); | |
322 | ✗ | yuv1 += yuv_stride[1] / sizeof(pixel); | |
323 | ✗ | yuv2 += yuv_stride[2] / sizeof(pixel); | |
324 | ✗ | rgb0 += s * (1 << SS_H); | |
325 | ✗ | rgb1 += s * (1 << SS_H); | |
326 | ✗ | rgb2 += s * (1 << SS_H); | |
327 | } | ||
328 | ✗ | } | |
329 | |||
330 | #undef IN_BIT_DEPTH | ||
331 | #undef OUT_BIT_DEPTH | ||
332 | #define OUT_BIT_DEPTH BIT_DEPTH | ||
333 | #define IN_BIT_DEPTH 8 | ||
334 | #include "colorspacedsp_yuv2yuv_template.c" | ||
335 | |||
336 | #undef IN_BIT_DEPTH | ||
337 | #define IN_BIT_DEPTH 10 | ||
338 | #include "colorspacedsp_yuv2yuv_template.c" | ||
339 | |||
340 | #undef IN_BIT_DEPTH | ||
341 | #define IN_BIT_DEPTH 12 | ||
342 | #include "colorspacedsp_yuv2yuv_template.c" | ||
343 |