FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/tests/checkasm/llviddsp.c
Date: 2026-08-28 18:35:09
Exec Total Coverage
Lines: 117 125 93.6%
Functions: 6 6 100.0%
Branches: 62 180 34.4%
Line Branch Exec Source
1 /*
2 * Copyright (c) 2016 Alexandra Hájková
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (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
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License along
17 * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19 */
20
21 #include <stddef.h>
22 #include <string.h>
23
24 #include "libavutil/cpu.h"
25 #include "libavutil/macros.h"
26 #include "libavutil/mem.h"
27
28 #include "libavcodec/lossless_videodsp.h"
29
30 #include "checkasm.h"
31
32 #define randomize_buffers(buf, size) \
33 do { \
34 int j; \
35 uint8_t *tmp_buf = (uint8_t *)buf;\
36 for (j = 0; j < size; j++) \
37 tmp_buf[j] = rnd() & 0xFF; \
38 } while (0)
39
40 #define init_buffer(a0, a1, type, width)\
41 if (!a0 || !a1)\
42 fail();\
43 randomize_buffers(a0, width * sizeof(type));\
44 memcpy(a1, a0, width*sizeof(type));\
45
46 3 static void check_add_bytes(LLVidDSPContext *c, int width, size_t aligned_width)
47 {
48 3 uint8_t *dst0 = av_mallocz(aligned_width);
49 3 uint8_t *dst1 = av_mallocz(aligned_width);
50 3 uint8_t *src0 = av_malloc(aligned_width);
51 3 uint8_t *src1 = av_malloc(aligned_width);
52 3 declare_func(void, uint8_t *dst, uint8_t *src, ptrdiff_t w);
53
54
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 4230 init_buffer(src0, src1, uint8_t, width);
55
56
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 3 if (!dst0 || !dst1)
57 ✗ fail();
58
59
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 3 call_ref(dst0, src0, width);
61 3 call_new(dst1, src1, width);
62
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 3 if (memcmp(dst0, dst1, width))
63 ✗ fail();
64
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 3 bench_new(dst1, src1, width);
65
66 3 av_free(src0);
67 3 av_free(src1);
68 3 av_free(dst0);
69 3 av_free(dst1);
70 3 }
71
72 2 static void check_add_median_pred(LLVidDSPContext *c, int width, size_t aligned_width)
73 {
74 int a0, a1, b0, b1;
75 2 uint8_t *dst0 = av_mallocz(aligned_width);
76 2 uint8_t *dst1 = av_mallocz(aligned_width);
77 2 uint8_t *src0 = av_malloc(aligned_width);
78 2 uint8_t *src1 = av_malloc(aligned_width);
79 2 uint8_t *diff0 = av_malloc(aligned_width);
80 2 uint8_t *diff1 = av_malloc(aligned_width);
81 2 declare_func(void, uint8_t *dst, const uint8_t *src1,
82 const uint8_t *diff, ptrdiff_t w,
83 int *left, int *left_top);
84
85
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 2820 init_buffer(src0, src1, uint8_t, width);
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 2820 init_buffer(diff0, diff1, uint8_t, width);
87
88 2 a0 = rnd() & 0xFF;
89 2 b0 = rnd() & 0xFF;
90 2 a1 = a0;
91 2 b1 = b0;
92
93
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 2 call_ref(dst0, src0, diff0, width, &a0, &b0);
95 2 call_new(dst1, src1, diff1, width, &a1, &b1);
96
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 2 if (memcmp(dst0, dst1, width) || (a0 != a1) || (b0 != b1))
97 ✗ fail();
98
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 2 bench_new(dst1, src1, diff1, width, &a1, &b1);
99
100 2 av_free(src0);
101 2 av_free(src1);
102 2 av_free(diff0);
103 2 av_free(diff1);
104 2 av_free(dst0);
105 2 av_free(dst1);
106 2 }
107
108 6 static void check_add_left_pred(LLVidDSPContext *c, int width, size_t aligned_width, int acc)
109 {
110 int res0, res1;
111 6 declare_func(int, uint8_t *dst, const uint8_t *src, ptrdiff_t w, int acc);
112 6 uint8_t *dst0 = av_mallocz(aligned_width);
113 6 uint8_t *dst1 = av_mallocz(aligned_width);
114 6 uint8_t *src0 = av_malloc(aligned_width);
115 6 uint8_t *src1 = av_malloc(aligned_width);
116
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 8460 init_buffer(src0, src1, uint8_t, width);
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 6 if (!dst0 || !dst1)
120 ✗ fail();
121
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 6 res0 = call_ref(dst0, src0, width, acc);
123 6 res1 = call_new(dst1, src1, width, acc);
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 6 if ((res0 & 0xFF) != (res1 & 0xFF) || memcmp(dst0, dst1, width))
125 ✗ fail();
126
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 6 bench_new(dst1, src1, width, acc);
127
128 6 av_free(src0);
129 6 av_free(src1);
130 6 av_free(dst0);
131 6 av_free(dst1);
132 6 }
133
134 2 static void check_add_left_pred_16(LLVidDSPContext *c, unsigned mask, int width,
135 size_t align, unsigned acc)
136 {
137 int res0, res1;
138 uint16_t *dst0, *dst1, *src0, *src1;
139 2 size_t aligned_width = FFALIGN(width * sizeof(*dst0), align);
140 2 declare_func(int, uint16_t *dst, const uint16_t *src, unsigned mask, ptrdiff_t w, unsigned acc);
141
142 2 dst0 = av_mallocz(aligned_width);
143 2 dst1 = av_mallocz(aligned_width);
144 2 src0 = av_malloc(aligned_width);
145 2 src1 = av_malloc(aligned_width);
146
147
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 5638 init_buffer(src0, src1, uint16_t, width);
148
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 2 if (!dst0 || !dst1)
150 ✗ fail();
151
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 2 res0 = call_ref(dst0, src0, mask, width, acc);
153 2 res1 = call_new(dst1, src1, mask, width, acc);
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 2 if ((res0 & 0xFFFF) != (res1 & 0xFFFF) || memcmp(dst0, dst1, width * sizeof(*dst0)))
155 ✗ fail();
156
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 2 bench_new(dst1, src1, mask, width, acc);
157
158 2 av_free(src0);
159 2 av_free(src1);
160 2 av_free(dst0);
161 2 av_free(dst1);
162 2 }
163
164 3 static void check_add_gradient_pred(LLVidDSPContext *c, int w, size_t align)
165 {
166 int src_size, stride;
167 uint8_t *src0, *src1;
168 3 declare_func(void, uint8_t *src, const ptrdiff_t stride,
169 const ptrdiff_t width);
170
171 3 stride = FFALIGN(w + 32, align);
172 3 src_size = (stride + 32) * 2; /* dsp need previous line, and ignore the start of the line */
173 3 src0 = av_mallocz(src_size);
174 3 src1 = av_mallocz(src_size);
175
176
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 8947 init_buffer(src0, src1, uint8_t, src_size);
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 3 call_ref(src0 + stride + 32, stride, w);
179 3 call_new(src1 + stride + 32, stride, w);
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 3 if (memcmp(src0, src1, stride)||/* previous line doesn't change */
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 3 memcmp(src0+stride, src1 + stride, w + 32)) {
182 ✗ fail();
183 }
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 3 bench_new(src1 + stride + 32, stride, w);
185
186 3 av_free(src0);
187 3 av_free(src1);
188 3 }
189
190 14 void checkasm_check_llviddsp(void)
191 {
192 LLVidDSPContext c;
193 14 int accRnd = rnd() & 0xFF;
194
195 14 size_t align = av_cpu_max_align();
196 14 int width = 1 + rnd() % 16*128;
197 14 size_t aligned_width = FFALIGN(width, align);
198
199 14 ff_llviddsp_init(&c);
200
201
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 14 if (check_func(c.add_bytes, "add_bytes"))
202 3 check_add_bytes(&c, width, aligned_width);
203 14 report("add_bytes");
204
205
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 14 if (check_func(c.add_median_pred, "add_median_pred"))
206 2 check_add_median_pred(&c, width, aligned_width);
207 14 report("add_median_pred");
208
209
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 14 if (check_func(c.add_left_pred, "add_left_pred_zero"))
210 3 check_add_left_pred(&c, width, aligned_width, 0);
211 14 report("add_left_pred_zero");
212
213
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 14 if (check_func(c.add_left_pred, "add_left_pred_rnd_acc"))
214 3 check_add_left_pred(&c, width, aligned_width, accRnd);
215 14 report("add_left_pred_rnd_acc");
216
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 14 if (check_func(c.add_left_pred_int16, "add_left_pred_int16"))
218 2 check_add_left_pred_16(&c, 255, width, align, accRnd);
219 14 report("add_left_pred_int16");
220
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 14 if (check_func(c.add_gradient_pred, "add_gradient_pred"))
222 3 check_add_gradient_pred(&c, width, align);
223 14 report("add_gradient_pred");
224 14 }
225