FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavfilter/colorspacedsp_template.c
Date: 2022-12-09 07:38:14
Exec Total Coverage
Lines: 80 171 46.8%
Functions: 18 27 66.7%
Branches: 8 16 50.0%

Line Branch Exec Source
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