FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/tests/checkasm/float_dsp.c
Date: 2025-11-28 00:28:25
Exec Total Coverage
Lines: 176 221 79.6%
Functions: 12 12 100.0%
Branches: 84 174 48.3%
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
22 #include "libavutil/float_dsp.h"
23 #include "libavutil/internal.h"
24 #include "libavutil/mem.h"
25 #include "libavutil/mem_internal.h"
26
27 #include "checkasm.h"
28
29 #define LEN 256
30
31 #define randomize_buffer(buf) \
32 do { \
33 int i; \
34 double bmg[2], stddev = 10.0, mean = 0.0; \
35 \
36 for (i = 0; i < LEN; i += 2) { \
37 av_bmg_get(&checkasm_lfg, bmg); \
38 buf[i] = bmg[0] * stddev + mean; \
39 buf[i + 1] = bmg[1] * stddev + mean; \
40 } \
41 } while(0);
42
43 7 static void test_vector_fmul(const float *src0, const float *src1)
44 {
45 7 LOCAL_ALIGNED_32(float, cdst, [LEN]);
46 7 LOCAL_ALIGNED_32(float, odst, [LEN]);
47 int i;
48
49 7 declare_func(void, float *dst, const float *src0, const float *src1,
50 int len);
51
52 7 call_ref(cdst, src0, src1, LEN);
53 7 call_new(odst, src0, src1, LEN);
54
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 1799 for (i = 0; i < LEN; i++) {
55 1792 double t = fabs(src0[i]) + fabs(src1[i]) + fabs(src0[i] * src1[i]) + 1.0;
56
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 1792 if (!float_near_abs_eps(cdst[i], odst[i], t * 2 * FLT_EPSILON)) {
57 ✗ fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
58 ✗ i, cdst[i], odst[i], cdst[i] - odst[i]);
59 ✗ fail();
60 ✗ break;
61 }
62 }
63
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 7 bench_new(odst, src0, src1, LEN);
64 7 }
65
66 3 static void test_vector_dmul(const double *src0, const double *src1)
67 {
68 3 LOCAL_ALIGNED_32(double, cdst, [LEN]);
69 3 LOCAL_ALIGNED_32(double, odst, [LEN]);
70 int i;
71
72 3 declare_func(void, double *dst, const double *src0, const double *src1,
73 int len);
74
75 3 call_ref(cdst, src0, src1, LEN);
76 3 call_new(odst, src0, src1, LEN);
77
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 771 for (i = 0; i < LEN; i++) {
78 768 double t = fabs(src0[i]) + fabs(src1[i]) + fabs(src0[i] * src1[i]) + 1.0;
79
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 768 if (!double_near_abs_eps(cdst[i], odst[i], t * 2 * DBL_EPSILON)) {
80 ✗ fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
81 ✗ i, cdst[i], odst[i], cdst[i] - odst[i]);
82 ✗ fail();
83 ✗ break;
84 }
85 }
86
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 3 bench_new(odst, src0, src1, LEN);
87 3 }
88
89 #define ARBITRARY_FMUL_ADD_CONST 0.005
90 4 static void test_vector_fmul_add(const float *src0, const float *src1, const float *src2)
91 {
92 4 LOCAL_ALIGNED_32(float, cdst, [LEN]);
93 4 LOCAL_ALIGNED_32(float, odst, [LEN]);
94 int i;
95
96 4 declare_func(void, float *dst, const float *src0, const float *src1,
97 const float *src2, int len);
98
99 4 call_ref(cdst, src0, src1, src2, LEN);
100 4 call_new(odst, src0, src1, src2, LEN);
101
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102
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 1024 if (!float_near_abs_eps(cdst[i], odst[i], ARBITRARY_FMUL_ADD_CONST)) {
103 ✗ fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
104 ✗ i, cdst[i], odst[i], cdst[i] - odst[i]);
105 ✗ fail();
106 ✗ break;
107 }
108 }
109
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 4 bench_new(odst, src0, src1, src2, LEN);
110 4 }
111
112 2 static void test_vector_fmul_scalar(const float *src0, const float *src1)
113 {
114 2 LOCAL_ALIGNED_16(float, cdst, [LEN]);
115 2 LOCAL_ALIGNED_16(float, odst, [LEN]);
116 int i;
117
118 2 declare_func(void, float *dst, const float *src, float mul, int len);
119
120 2 call_ref(cdst, src0, src1[0], LEN);
121 2 call_new(odst, src0, src1[0], LEN);
122
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 514 for (i = 0; i < LEN; i++) {
123 512 double t = fabs(src0[i]) + fabs(src1[0]) + fabs(src0[i] * src1[0]) + 1.0;
124
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 512 if (!float_near_abs_eps(cdst[i], odst[i], t * 2 * FLT_EPSILON)) {
125 ✗ fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
126 ✗ i, cdst[i], odst[i], cdst[i] - odst[i]);
127 ✗ fail();
128 ✗ break;
129 }
130 }
131
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 2 bench_new(odst, src0, src1[0], LEN);
132 2 }
133
134 #define ARBITRARY_FMUL_WINDOW_CONST 0.008
135 2 static void test_vector_fmul_window(const float *src0, const float *src1, const float *win)
136 {
137 2 LOCAL_ALIGNED_16(float, cdst, [LEN]);
138 2 LOCAL_ALIGNED_16(float, odst, [LEN]);
139 int i;
140
141 2 declare_func(void, float *dst, const float *src0, const float *src1,
142 const float *win, int len);
143
144 2 call_ref(cdst, src0, src1, win, LEN / 2);
145 2 call_new(odst, src0, src1, win, LEN / 2);
146
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 514 for (i = 0; i < LEN; i++) {
147
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 512 if (!float_near_abs_eps(cdst[i], odst[i], ARBITRARY_FMUL_WINDOW_CONST)) {
148 ✗ fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
149 ✗ i, cdst[i], odst[i], cdst[i] - odst[i]);
150 ✗ fail();
151 ✗ break;
152 }
153 }
154
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 2 bench_new(odst, src0, src1, win, LEN / 2);
155 2 }
156
157 #define ARBITRARY_FMAC_SCALAR_CONST 0.005
158 4 static void test_vector_fmac_scalar(const float *src0, const float *src1, const float *src2)
159 {
160 4 LOCAL_ALIGNED_32(float, cdst, [LEN]);
161 4 LOCAL_ALIGNED_32(float, odst, [LEN]);
162 int i;
163
164 4 declare_func(void, float *dst, const float *src, float mul, int len);
165
166 4 memcpy(cdst, src2, LEN * sizeof(*src2));
167 4 memcpy(odst, src2, LEN * sizeof(*src2));
168
169 4 call_ref(cdst, src0, src1[0], LEN);
170 4 call_new(odst, src0, src1[0], LEN);
171
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 1028 for (i = 0; i < LEN; i++) {
172
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 1024 if (!float_near_abs_eps(cdst[i], odst[i], ARBITRARY_FMAC_SCALAR_CONST)) {
173 ✗ fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
174 ✗ i, cdst[i], odst[i], cdst[i] - odst[i]);
175 ✗ fail();
176 ✗ break;
177 }
178 }
179 4 memcpy(odst, src2, LEN * sizeof(*src2));
180
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 4 bench_new(odst, src0, src1[0], LEN);
181 4 }
182
183 3 static void test_vector_dmul_scalar(const double *src0, const double *src1)
184 {
185 3 LOCAL_ALIGNED_32(double, cdst, [LEN]);
186 3 LOCAL_ALIGNED_32(double, odst, [LEN]);
187 int i;
188
189 3 declare_func(void, double *dst, const double *src, double mul, int len);
190
191 3 call_ref(cdst, src0, src1[0], LEN);
192 3 call_new(odst, src0, src1[0], LEN);
193
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 771 for (i = 0; i < LEN; i++) {
194 768 double t = fabs(src1[0]) + fabs(src0[i]) + fabs(src1[0] * src0[i]) + 1.0;
195
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 768 if (!double_near_abs_eps(cdst[i], odst[i], t * 2 * DBL_EPSILON)) {
196 ✗ fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n", i,
197 ✗ cdst[i], odst[i], cdst[i] - odst[i]);
198 ✗ fail();
199 ✗ break;
200 }
201 }
202
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 3 bench_new(odst, src0, src1[0], LEN);
203 3 }
204
205 #define ARBITRARY_DMAC_SCALAR_CONST 0.005
206 4 static void test_vector_dmac_scalar(const double *src0, const double *src1, const double *src2)
207 {
208 4 LOCAL_ALIGNED_32(double, cdst, [LEN]);
209 4 LOCAL_ALIGNED_32(double, odst, [LEN]);
210 int i;
211
212 4 declare_func(void, double *dst, const double *src, double mul, int len);
213
214 4 memcpy(cdst, src2, LEN * sizeof(*src2));
215 4 memcpy(odst, src2, LEN * sizeof(*src2));
216 4 call_ref(cdst, src0, src1[0], LEN);
217 4 call_new(odst, src0, src1[0], LEN);
218
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 1028 for (i = 0; i < LEN; i++) {
219
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 1024 if (!double_near_abs_eps(cdst[i], odst[i], ARBITRARY_DMAC_SCALAR_CONST)) {
220 ✗ fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
221 ✗ i, cdst[i], odst[i], cdst[i] - odst[i]);
222 ✗ fail();
223 ✗ break;
224 }
225 }
226 4 memcpy(odst, src2, LEN * sizeof(*src2));
227
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 4 bench_new(odst, src0, src1[0], LEN);
228 4 }
229
230 2 static void test_butterflies_float(const float *src0, const float *src1)
231 {
232 2 LOCAL_ALIGNED_16(float, cdst, [LEN]);
233 2 LOCAL_ALIGNED_16(float, odst, [LEN]);
234 2 LOCAL_ALIGNED_16(float, cdst1, [LEN]);
235 2 LOCAL_ALIGNED_16(float, odst1, [LEN]);
236 int i;
237
238 2 declare_func(void, float *restrict src0, float *restrict src1,
239 int len);
240
241 2 memcpy(cdst, src0, LEN * sizeof(*src0));
242 2 memcpy(cdst1, src1, LEN * sizeof(*src1));
243 2 memcpy(odst, src0, LEN * sizeof(*src0));
244 2 memcpy(odst1, src1, LEN * sizeof(*src1));
245
246 2 call_ref(cdst, cdst1, LEN);
247 2 call_new(odst, odst1, LEN);
248
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 514 for (i = 0; i < LEN; i++) {
249
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 1024 if (!float_near_abs_eps(cdst[i], odst[i], FLT_EPSILON) ||
250 512 !float_near_abs_eps(cdst1[i], odst1[i], FLT_EPSILON)) {
251 ✗ fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
252 ✗ i, cdst[i], odst[i], cdst[i] - odst[i]);
253 ✗ fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
254 ✗ i, cdst1[i], odst1[i], cdst1[i] - odst1[i]);
255 ✗ fail();
256 ✗ break;
257 }
258 }
259 2 memcpy(odst, src0, LEN * sizeof(*src0));
260 2 memcpy(odst1, src1, LEN * sizeof(*src1));
261
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 2 bench_new(odst, odst1, LEN);
262 2 }
263
264 #define ARBITRARY_SCALARPRODUCT_CONST 0.2
265 3 static void test_scalarproduct_float(const float *src0, const float *src1)
266 {
267 float cprod, oprod;
268
269 3 declare_func_float(float, const float *src0, const float *src1, int len);
270
271 3 cprod = call_ref(src0, src1, LEN);
272 3 oprod = call_new(src0, src1, LEN);
273
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 3 if (!float_near_abs_eps(cprod, oprod, ARBITRARY_SCALARPRODUCT_CONST)) {
274 ✗ fprintf(stderr, "%- .12f - %- .12f = % .12g\n",
275 ✗ cprod, oprod, cprod - oprod);
276 ✗ fail();
277 }
278
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 3 bench_new(src0, src1, LEN);
279 3 }
280
281 3 static void test_scalarproduct_double(const double *src0, const double *src1)
282 {
283 double cprod, oprod;
284
285 3 declare_func_float(double, const double *, const double *, size_t);
286
287 3 cprod = call_ref(src0, src1, LEN);
288 3 oprod = call_new(src0, src1, LEN);
289
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 3 if (!double_near_abs_eps(cprod, oprod, ARBITRARY_SCALARPRODUCT_CONST)) {
290 ✗ fprintf(stderr, "%- .12f - %- .12f = % .12g\n",
291 cprod, oprod, cprod - oprod);
292 ✗ fail();
293 }
294
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 3 bench_new(src0, src1, LEN);
295 3 }
296
297 13 void checkasm_check_float_dsp(void)
298 {
299 13 LOCAL_ALIGNED_32(float, src0, [LEN]);
300 13 LOCAL_ALIGNED_32(float, src1, [LEN]);
301 13 LOCAL_ALIGNED_32(float, src2, [LEN]);
302 13 LOCAL_ALIGNED_16(float, src3, [LEN]);
303 13 LOCAL_ALIGNED_16(float, src4, [LEN]);
304 13 LOCAL_ALIGNED_16(float, src5, [LEN]);
305 13 LOCAL_ALIGNED_32(double, dbl_src0, [LEN]);
306 13 LOCAL_ALIGNED_32(double, dbl_src1, [LEN]);
307 13 LOCAL_ALIGNED_32(double, dbl_src2, [LEN]);
308 13 AVFloatDSPContext *fdsp = avpriv_float_dsp_alloc(1);
309
310
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 13 if (!fdsp) {
311 ✗ fprintf(stderr, "floatdsp: Out of memory error\n");
312 ✗ return;
313 }
314
315
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 1677 randomize_buffer(src0);
316
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 1677 randomize_buffer(src1);
317
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 1677 randomize_buffer(src2);
318
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 1677 randomize_buffer(src3);
319
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 1677 randomize_buffer(src4);
320
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 1677 randomize_buffer(src5);
321
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 1677 randomize_buffer(dbl_src0);
322
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 1677 randomize_buffer(dbl_src1);
323
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 1677 randomize_buffer(dbl_src2);
324
325
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 13 if (check_func(fdsp->vector_fmul, "vector_fmul"))
326 3 test_vector_fmul(src0, src1);
327
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 13 if (check_func(fdsp->vector_fmul_add, "vector_fmul_add"))
328 4 test_vector_fmul_add(src0, src1, src2);
329
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 13 if (check_func(fdsp->vector_fmul_scalar, "vector_fmul_scalar"))
330 2 test_vector_fmul_scalar(src3, src4);
331
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 13 if (check_func(fdsp->vector_fmul_reverse, "vector_fmul_reverse"))
332 4 test_vector_fmul(src0, src1);
333
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 13 if (check_func(fdsp->vector_fmul_window, "vector_fmul_window"))
334 2 test_vector_fmul_window(src3, src4, src5);
335 13 report("vector_fmul");
336
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 13 if (check_func(fdsp->vector_fmac_scalar, "vector_fmac_scalar"))
337 4 test_vector_fmac_scalar(src0, src1, src2);
338 13 report("vector_fmac");
339
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 13 if (check_func(fdsp->vector_dmul, "vector_dmul"))
340 3 test_vector_dmul(dbl_src0, dbl_src1);
341
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 13 if (check_func(fdsp->vector_dmul_scalar, "vector_dmul_scalar"))
342 3 test_vector_dmul_scalar(dbl_src0, dbl_src1);
343 13 report("vector_dmul");
344
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 13 if (check_func(fdsp->vector_dmac_scalar, "vector_dmac_scalar"))
345 4 test_vector_dmac_scalar(dbl_src0, dbl_src1, dbl_src2);
346 13 report("vector_dmac");
347
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 13 if (check_func(fdsp->butterflies_float, "butterflies_float"))
348 2 test_butterflies_float(src3, src4);
349 13 report("butterflies_float");
350
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 13 if (check_func(fdsp->scalarproduct_float, "scalarproduct_float"))
351 3 test_scalarproduct_float(src3, src4);
352 13 report("scalarproduct_float");
353
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 13 if (check_func(fdsp->scalarproduct_double, "scalarproduct_double"))
354 3 test_scalarproduct_double(dbl_src0, dbl_src1);
355 13 report("scalarproduct_double");
356
357 13 av_freep(&fdsp);
358 }
359