FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/tests/checkasm/float_dsp.c
Date: 2026-08-15 14:54:27
Exec Total Coverage
Lines: 176 221 79.6%
Functions: 12 12 100.0%
Branches: 77 288 26.7%
Line Branch Exec Source
1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License along
15 * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17 */
18
19 #include <float.h>
20 #include <stdint.h>
21 #include <string.h>
22
23 #include "libavutil/float_dsp.h"
24 #include "libavutil/internal.h"
25 #include "libavutil/mem.h"
26 #include "libavutil/mem_internal.h"
27
28 #include "checkasm.h"
29
30 #define LEN 256
31
32 7 static void test_vector_fmul(const float *src0, const float *src1)
33 {
34 7 LOCAL_ALIGNED_32(float, cdst, [LEN]);
35 7 LOCAL_ALIGNED_32(float, odst, [LEN]);
36 int i;
37
38 7 declare_func(void, float *dst, const float *src0, const float *src1,
39 int len);
40
41
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 7 call_ref(cdst, src0, src1, LEN);
42 7 call_new(odst, src0, src1, LEN);
43
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 1799 for (i = 0; i < LEN; i++) {
44 1792 double t = fabs(src0[i]) + fabs(src1[i]) + fabs(src0[i] * src1[i]) + 1.0;
45
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 1792 if (!float_near_abs_eps(cdst[i], odst[i], t * 2 * FLT_EPSILON)) {
46 ✗ fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
47 ✗ i, cdst[i], odst[i], cdst[i] - odst[i]);
48 ✗ fail();
49 ✗ break;
50 }
51 }
52
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 7 bench_new(odst, src0, src1, LEN);
53 7 }
54
55 3 static void test_vector_dmul(const double *src0, const double *src1)
56 {
57 3 LOCAL_ALIGNED_32(double, cdst, [LEN]);
58 3 LOCAL_ALIGNED_32(double, odst, [LEN]);
59 int i;
60
61 3 declare_func(void, double *dst, const double *src0, const double *src1,
62 int len);
63
64
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 3 call_ref(cdst, src0, src1, LEN);
65 3 call_new(odst, src0, src1, LEN);
66
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 771 for (i = 0; i < LEN; i++) {
67 768 double t = fabs(src0[i]) + fabs(src1[i]) + fabs(src0[i] * src1[i]) + 1.0;
68
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 768 if (!double_near_abs_eps(cdst[i], odst[i], t * 2 * DBL_EPSILON)) {
69 ✗ fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
70 ✗ i, cdst[i], odst[i], cdst[i] - odst[i]);
71 ✗ fail();
72 ✗ break;
73 }
74 }
75
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 3 bench_new(odst, src0, src1, LEN);
76 3 }
77
78 #define ARBITRARY_FMUL_ADD_CONST 0.005
79 4 static void test_vector_fmul_add(const float *src0, const float *src1, const float *src2)
80 {
81 4 LOCAL_ALIGNED_32(float, cdst, [LEN]);
82 4 LOCAL_ALIGNED_32(float, odst, [LEN]);
83 int i;
84
85 4 declare_func(void, float *dst, const float *src0, const float *src1,
86 const float *src2, int len);
87
88
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 4 call_ref(cdst, src0, src1, src2, LEN);
89 4 call_new(odst, src0, src1, src2, LEN);
90
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91
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 1024 if (!float_near_abs_eps(cdst[i], odst[i], ARBITRARY_FMUL_ADD_CONST)) {
92 ✗ fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
93 ✗ i, cdst[i], odst[i], cdst[i] - odst[i]);
94 ✗ fail();
95 ✗ break;
96 }
97 }
98
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 4 bench_new(odst, src0, src1, src2, LEN);
99 4 }
100
101 2 static void test_vector_fmul_scalar(const float *src0, const float *src1)
102 {
103 2 LOCAL_ALIGNED_16(float, cdst, [LEN]);
104 2 LOCAL_ALIGNED_16(float, odst, [LEN]);
105 int i;
106
107 2 declare_func(void, float *dst, const float *src, float mul, int len);
108
109
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 2 call_ref(cdst, src0, src1[0], LEN);
110 2 call_new(odst, src0, src1[0], LEN);
111
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 514 for (i = 0; i < LEN; i++) {
112 512 double t = fabs(src0[i]) + fabs(src1[0]) + fabs(src0[i] * src1[0]) + 1.0;
113
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 512 if (!float_near_abs_eps(cdst[i], odst[i], t * 2 * FLT_EPSILON)) {
114 ✗ fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
115 ✗ i, cdst[i], odst[i], cdst[i] - odst[i]);
116 ✗ fail();
117 ✗ break;
118 }
119 }
120
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 2 bench_new(odst, src0, src1[0], LEN);
121 2 }
122
123 #define ARBITRARY_FMUL_WINDOW_CONST 0.008
124 2 static void test_vector_fmul_window(const float *src0, const float *src1, const float *win)
125 {
126 2 LOCAL_ALIGNED_16(float, cdst, [LEN]);
127 2 LOCAL_ALIGNED_16(float, odst, [LEN]);
128 int i;
129
130 2 declare_func(void, float *dst, const float *src0, const float *src1,
131 const float *win, int len);
132
133
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 2 call_ref(cdst, src0, src1, win, LEN / 2);
134 2 call_new(odst, src0, src1, win, LEN / 2);
135
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 514 for (i = 0; i < LEN; i++) {
136
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 512 if (!float_near_abs_eps(cdst[i], odst[i], ARBITRARY_FMUL_WINDOW_CONST)) {
137 ✗ fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
138 ✗ i, cdst[i], odst[i], cdst[i] - odst[i]);
139 ✗ fail();
140 ✗ break;
141 }
142 }
143
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 2 bench_new(odst, src0, src1, win, LEN / 2);
144 2 }
145
146 #define ARBITRARY_FMAC_SCALAR_CONST 0.005
147 4 static void test_vector_fmac_scalar(const float *src0, const float *src1, const float *src2)
148 {
149 4 LOCAL_ALIGNED_32(float, cdst, [LEN]);
150 4 LOCAL_ALIGNED_32(float, odst, [LEN]);
151 int i;
152
153 4 declare_func(void, float *dst, const float *src, float mul, int len);
154
155 4 memcpy(cdst, src2, LEN * sizeof(*src2));
156 4 memcpy(odst, src2, LEN * sizeof(*src2));
157
158
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 4 call_ref(cdst, src0, src1[0], LEN);
159 4 call_new(odst, src0, src1[0], LEN);
160
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161
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 1024 if (!float_near_abs_eps(cdst[i], odst[i], ARBITRARY_FMAC_SCALAR_CONST)) {
162 ✗ fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
163 ✗ i, cdst[i], odst[i], cdst[i] - odst[i]);
164 ✗ fail();
165 ✗ break;
166 }
167 }
168 4 memcpy(odst, src2, LEN * sizeof(*src2));
169
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 4 bench_new(odst, src0, src1[0], LEN);
170 4 }
171
172 3 static void test_vector_dmul_scalar(const double *src0, const double *src1)
173 {
174 3 LOCAL_ALIGNED_32(double, cdst, [LEN]);
175 3 LOCAL_ALIGNED_32(double, odst, [LEN]);
176 int i;
177
178 3 declare_func(void, double *dst, const double *src, double mul, int len);
179
180
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 3 call_ref(cdst, src0, src1[0], LEN);
181 3 call_new(odst, src0, src1[0], LEN);
182
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 771 for (i = 0; i < LEN; i++) {
183 768 double t = fabs(src1[0]) + fabs(src0[i]) + fabs(src1[0] * src0[i]) + 1.0;
184
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 768 if (!double_near_abs_eps(cdst[i], odst[i], t * 2 * DBL_EPSILON)) {
185 ✗ fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n", i,
186 ✗ cdst[i], odst[i], cdst[i] - odst[i]);
187 ✗ fail();
188 ✗ break;
189 }
190 }
191
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 3 bench_new(odst, src0, src1[0], LEN);
192 3 }
193
194 #define ARBITRARY_DMAC_SCALAR_CONST 0.005
195 4 static void test_vector_dmac_scalar(const double *src0, const double *src1, const double *src2)
196 {
197 4 LOCAL_ALIGNED_32(double, cdst, [LEN]);
198 4 LOCAL_ALIGNED_32(double, odst, [LEN]);
199 int i;
200
201 4 declare_func(void, double *dst, const double *src, double mul, int len);
202
203 4 memcpy(cdst, src2, LEN * sizeof(*src2));
204 4 memcpy(odst, src2, LEN * sizeof(*src2));
205
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 4 call_ref(cdst, src0, src1[0], LEN);
206 4 call_new(odst, src0, src1[0], LEN);
207
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208
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 1024 if (!double_near_abs_eps(cdst[i], odst[i], ARBITRARY_DMAC_SCALAR_CONST)) {
209 ✗ fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
210 ✗ i, cdst[i], odst[i], cdst[i] - odst[i]);
211 ✗ fail();
212 ✗ break;
213 }
214 }
215 4 memcpy(odst, src2, LEN * sizeof(*src2));
216
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 4 bench_new(odst, src0, src1[0], LEN);
217 4 }
218
219 2 static void test_butterflies_float(const float *src0, const float *src1)
220 {
221 2 LOCAL_ALIGNED_16(float, cdst, [LEN]);
222 2 LOCAL_ALIGNED_16(float, odst, [LEN]);
223 2 LOCAL_ALIGNED_16(float, cdst1, [LEN]);
224 2 LOCAL_ALIGNED_16(float, odst1, [LEN]);
225 int i;
226
227 2 declare_func(void, float *restrict src0, float *restrict src1,
228 int len);
229
230 2 memcpy(cdst, src0, LEN * sizeof(*src0));
231 2 memcpy(cdst1, src1, LEN * sizeof(*src1));
232 2 memcpy(odst, src0, LEN * sizeof(*src0));
233 2 memcpy(odst1, src1, LEN * sizeof(*src1));
234
235
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 2 call_ref(cdst, cdst1, LEN);
236 2 call_new(odst, odst1, LEN);
237
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 514 for (i = 0; i < LEN; i++) {
238
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 1024 if (!float_near_abs_eps(cdst[i], odst[i], FLT_EPSILON) ||
239 512 !float_near_abs_eps(cdst1[i], odst1[i], FLT_EPSILON)) {
240 ✗ fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
241 ✗ i, cdst[i], odst[i], cdst[i] - odst[i]);
242 ✗ fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
243 ✗ i, cdst1[i], odst1[i], cdst1[i] - odst1[i]);
244 ✗ fail();
245 ✗ break;
246 }
247 }
248 2 memcpy(odst, src0, LEN * sizeof(*src0));
249 2 memcpy(odst1, src1, LEN * sizeof(*src1));
250
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 2 bench_new(odst, odst1, LEN);
251 2 }
252
253 #define ARBITRARY_SCALARPRODUCT_CONST 0.2
254 3 static void test_scalarproduct_float(const float *src0, const float *src1)
255 {
256 float cprod, oprod;
257
258 3 declare_func_float(float, const float *src0, const float *src1, int len);
259
260
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 3 cprod = call_ref(src0, src1, LEN);
261 3 oprod = call_new(src0, src1, LEN);
262
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 3 if (!float_near_abs_eps(cprod, oprod, ARBITRARY_SCALARPRODUCT_CONST)) {
263 ✗ fprintf(stderr, "%- .12f - %- .12f = % .12g\n",
264 ✗ cprod, oprod, cprod - oprod);
265 ✗ fail();
266 }
267
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 3 bench_new(src0, src1, LEN);
268 3 }
269
270 3 static void test_scalarproduct_double(const double *src0, const double *src1)
271 {
272 double cprod, oprod;
273
274 3 declare_func_float(double, const double *, const double *, size_t);
275
276
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 3 cprod = call_ref(src0, src1, LEN);
277 3 oprod = call_new(src0, src1, LEN);
278
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 3 if (!double_near_abs_eps(cprod, oprod, ARBITRARY_SCALARPRODUCT_CONST)) {
279 ✗ fprintf(stderr, "%- .12f - %- .12f = % .12g\n",
280 cprod, oprod, cprod - oprod);
281 ✗ fail();
282 }
283
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 3 bench_new(src0, src1, LEN);
284 3 }
285
286 14 void checkasm_check_float_dsp(void)
287 {
288 14 LOCAL_ALIGNED_32(float, src0, [LEN]);
289 14 LOCAL_ALIGNED_32(float, src1, [LEN]);
290 14 LOCAL_ALIGNED_32(float, src2, [LEN]);
291 14 LOCAL_ALIGNED_16(float, src3, [LEN]);
292 14 LOCAL_ALIGNED_16(float, src4, [LEN]);
293 14 LOCAL_ALIGNED_16(float, src5, [LEN]);
294 14 LOCAL_ALIGNED_32(double, dbl_src0, [LEN]);
295 14 LOCAL_ALIGNED_32(double, dbl_src1, [LEN]);
296 14 LOCAL_ALIGNED_32(double, dbl_src2, [LEN]);
297 14 AVFloatDSPContext *fdsp = avpriv_float_dsp_alloc(1);
298
299
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 14 if (!fdsp) {
300 ✗ fprintf(stderr, "floatdsp: Out of memory error\n");
301 ✗ return;
302 }
303
304 14 randomize_stddev(src0, LEN, 10.0);
305 14 randomize_stddev(src1, LEN, 10.0);
306 14 randomize_stddev(src2, LEN, 10.0);
307 14 randomize_stddev(src3, LEN, 10.0);
308 14 randomize_stddev(src4, LEN, 10.0);
309 14 randomize_stddev(src5, LEN, 10.0);
310 14 randomize_stddev_dbl(dbl_src0, LEN, 10.0);
311 14 randomize_stddev_dbl(dbl_src1, LEN, 10.0);
312 14 randomize_stddev_dbl(dbl_src2, LEN, 10.0);
313
314
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 14 if (check_func(fdsp->vector_fmul, "vector_fmul"))
315 3 test_vector_fmul(src0, src1);
316
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 14 if (check_func(fdsp->vector_fmul_add, "vector_fmul_add"))
317 4 test_vector_fmul_add(src0, src1, src2);
318
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 14 if (check_func(fdsp->vector_fmul_scalar, "vector_fmul_scalar"))
319 2 test_vector_fmul_scalar(src3, src4);
320
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 14 if (check_func(fdsp->vector_fmul_reverse, "vector_fmul_reverse"))
321 4 test_vector_fmul(src0, src1);
322
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 14 if (check_func(fdsp->vector_fmul_window, "vector_fmul_window"))
323 2 test_vector_fmul_window(src3, src4, src5);
324 14 report("vector_fmul");
325
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 14 if (check_func(fdsp->vector_fmac_scalar, "vector_fmac_scalar"))
326 4 test_vector_fmac_scalar(src0, src1, src2);
327 14 report("vector_fmac");
328
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 14 if (check_func(fdsp->vector_dmul, "vector_dmul"))
329 3 test_vector_dmul(dbl_src0, dbl_src1);
330
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 14 if (check_func(fdsp->vector_dmul_scalar, "vector_dmul_scalar"))
331 3 test_vector_dmul_scalar(dbl_src0, dbl_src1);
332 14 report("vector_dmul");
333
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 14 if (check_func(fdsp->vector_dmac_scalar, "vector_dmac_scalar"))
334 4 test_vector_dmac_scalar(dbl_src0, dbl_src1, dbl_src2);
335 14 report("vector_dmac");
336
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 14 if (check_func(fdsp->butterflies_float, "butterflies_float"))
337 2 test_butterflies_float(src3, src4);
338 14 report("butterflies_float");
339
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 14 if (check_func(fdsp->scalarproduct_float, "scalarproduct_float"))
340 3 test_scalarproduct_float(src3, src4);
341 14 report("scalarproduct_float");
342
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 14 if (check_func(fdsp->scalarproduct_double, "scalarproduct_double"))
343 3 test_scalarproduct_double(dbl_src0, dbl_src1);
344 14 report("scalarproduct_double");
345
346 14 av_freep(&fdsp);
347 }
348