FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/tests/checkasm/huffyuvdsp.c
Date: 2026-09-18 09:24:57
Exec Total Coverage
Lines: 59 63 93.7%
Functions: 4 4 100.0%
Branches: 32 96 33.3%
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 <string.h>
22
23 #include "libavutil/intreadwrite.h"
24 #include "libavutil/mem.h"
25 #include "libavutil/mem_internal.h"
26
27 #include "libavcodec/huffyuvdsp.h"
28
29 #include "checkasm.h"
30
31 enum {
32 MAX_WIDTH = 16*128, ///< arbitrary limit used for the tests
33 };
34
35 #define randomize_buffers(buf, size) \
36 do { \
37 int j; \
38 for (j = 0; j < size; j++) \
39 buf[j] = rnd() & 0xFFFF; \
40 } while (0)
41
42 #define randomize_buffer_mask(buf, width, mask) \
43 do { \
44 unsigned mask2 = mask | (mask << 16); \
45 for (size_t i = 0; i < (width & ~1); i += 2) \
46 AV_WN32A((buf) + i, rnd() & mask2); \
47 if (width & 1) \
48 buf[width - 1] = rnd() & mask; \
49 } while (0)
50
51 28 static void check_add_int16(HuffYUVDSPContext *c, unsigned mask, int width, const char * name)
52 {
53
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 28 if (!check_func(c->add_int16, "%s", name))
54 22 return;
55
56 6 uint16_t *src0 = av_mallocz(width * sizeof(uint16_t));
57 6 uint16_t *src1 = av_mallocz(width * sizeof(uint16_t));
58 6 uint16_t *dst0 = av_mallocz(width * sizeof(uint16_t));
59 6 uint16_t *dst1 = av_mallocz(width * sizeof(uint16_t));
60
61 6 declare_func(void, uint16_t *dst, const uint16_t *src, unsigned mask, int w);
62
63
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 6 if (!src0 || !src1 || !dst0 || !dst1)
64 ✗ fail();
65
66
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 10641 randomize_buffers(src0, width);
67 6 memcpy(src1, src0, width * sizeof(uint16_t));
68
69
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 6 call_ref(dst0, src0, mask, width);
70 6 call_new(dst1, src1, mask, width);
71
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 6 if (memcmp(dst0, dst1, width * sizeof(uint16_t)))
72 ✗ fail();
73
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 6 bench_new(dst1, src1, mask, width);
74
75 6 av_free(src0);
76 6 av_free(src1);
77 6 av_free(dst0);
78 6 av_free(dst1);
79 }
80
81 14 static void check_add_hfyu_median_pred_int16(const HuffYUVDSPContext *c, unsigned mask, int width)
82 {
83 14 declare_func(void, uint16_t *dst, const uint16_t *top,
84 const uint16_t *diff, unsigned mask,
85 int w, int *left, int *left_top);
86
87
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 14 if (!check_func(c->add_hfyu_median_pred_int16, "add_hfyu_median_pred_int16"))
88 12 return;
89
90 DECLARE_ALIGNED(16, uint16_t, top)[MAX_WIDTH];
91 DECLARE_ALIGNED(16, uint16_t, diff)[MAX_WIDTH];
92 DECLARE_ALIGNED(16, uint16_t, dst_new)[MAX_WIDTH];
93 DECLARE_ALIGNED(16, uint16_t, dst_ref)[MAX_WIDTH];
94 2 int left_new = rnd() & mask, left_ref = left_new;
95 2 int lt_new = rnd() & mask, lt_ref = lt_new;
96
97
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 2050 randomize_buffer_mask(top, MAX_WIDTH, mask);
98
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 2050 randomize_buffer_mask(diff, MAX_WIDTH, mask);
99
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 2 call_ref(dst_ref, top, diff, mask, width, &left_ref, &lt_ref);
101 2 call_new(dst_new, top, diff, mask, width, &left_new, &lt_new);
102
103
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 2 if (left_ref != left_new || lt_ref != lt_new ||
104
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 2 memcmp(dst_ref, dst_new, width * sizeof(dst_ref[0])))
105 ✗ fail();
106
107
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 2 bench_new(dst_new, top, diff, mask, width, &left_new, &lt_new);
108 }
109
110 14 static void check_add_hfyu_left_pred_bgr32(HuffYUVDSPContext *c)
111 {
112 #define BUF_SIZE 1080
113 uint8_t src[4 * BUF_SIZE], dst0[4 * BUF_SIZE], dst1[4 * BUF_SIZE];
114 uint8_t left[4], left0[4], left1[4];
115
116 14 declare_func(void, uint8_t *d, const uint8_t *s, intptr_t w, uint8_t *l);
117
118
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 14 if (!check_func(c->add_hfyu_left_pred_bgr32, "add_hfyu_left_pred_bgr32"))
119 12 return;
120
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 8642 randomize_buffers(src, sizeof (src));
122
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 10 randomize_buffers(left, sizeof (left));
123 2 memcpy(left0, left, sizeof (left));
124 2 memcpy(left1, left, sizeof (left));
125
126
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 2 call_ref(dst0, src, BUF_SIZE, left0);
127 2 call_new(dst1, src, BUF_SIZE, left1);
128
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 2 if (memcmp(dst0, dst1, sizeof (dst0)) != 0 ||
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 2 memcmp(left0, left1, sizeof (left0)) != 0) {
131 ✗ fail();
132 }
133
134
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 2 bench_new(dst1, src, BUF_SIZE, left);
135 }
136
137 14 void checkasm_check_huffyuvdsp(void)
138 {
139 HuffYUVDSPContext c;
140
141 14 ff_huffyuvdsp_init(&c);
142
143 14 unsigned bps = 9 + rnd() % 8;
144 14 unsigned mask = (1 << bps) - 1;
145 14 int width = 1 + rnd() % MAX_WIDTH;
146
147 /*! test width not multiple of mmsize */
148 14 check_add_int16(&c, mask, width, "add_int16_rnd_width");
149 14 report("add_int16_rnd_width");
150
151 /*! test always with the same size (for perf test) */
152 14 check_add_int16(&c, mask, MAX_WIDTH, "add_int16_128");
153 14 report("add_int16_128");
154
155 14 check_add_hfyu_median_pred_int16(&c, mask, width);
156 14 report("add_hfyu_median_pred_int16");
157
158 14 check_add_hfyu_left_pred_bgr32(&c);
159 14 report("add_hfyu_left_pred_bgr32");
160 14 }
161