FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/tests/checkasm/hevc_dequant.c
Date: 2026-04-24 10:13:59
Exec Total Coverage
Lines: 21 22 95.5%
Functions: 2 2 100.0%
Branches: 12 20 60.0%

Line Branch Exec Source
1 /*
2 * Copyright (c) 2024 FFmpeg contributors
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_internal.h"
25
26 #include "libavcodec/hevc/dsp.h"
27
28 #include "checkasm.h"
29
30 #define randomize_buffers(buf, size) \
31 do { \
32 int j; \
33 for (j = 0; j < size; j++) { \
34 int16_t r = rnd() & 0x7FFF; \
35 if (rnd() & 1) r = -r; \
36 AV_WN16A(buf + j, r); \
37 } \
38 } while (0)
39
40 42 static void check_dequant(HEVCDSPContext *h, int bit_depth)
41 {
42 int i;
43 42 LOCAL_ALIGNED(32, int16_t, coeffs0, [32 * 32]);
44 42 LOCAL_ALIGNED(32, int16_t, coeffs1, [32 * 32]);
45
46
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210 for (i = 2; i <= 5; i++) {
47 168 int block_size = 1 << i;
48 168 int size = block_size * block_size;
49 168 declare_func(void, int16_t *coeffs, int16_t log2_size);
50
51
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168 if (check_func(h->dequant, "hevc_dequant_%dx%d_%d",
52 block_size, block_size, bit_depth)) {
53
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5456 randomize_buffers(coeffs0, size);
54 16 memcpy(coeffs1, coeffs0, sizeof(*coeffs0) * size);
55
56 16 call_ref(coeffs0, i);
57 16 call_new(coeffs1, i);
58
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16 if (memcmp(coeffs0, coeffs1, sizeof(*coeffs0) * size))
59 fail();
60
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16 bench_new(coeffs1, i);
61 }
62 }
63 42 }
64
65 14 void checkasm_check_hevc_dequant(void)
66 {
67 int bit_depth;
68
69
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56 for (bit_depth = 8; bit_depth <= 12; bit_depth += 2) {
70 HEVCDSPContext h;
71
72 42 ff_hevc_dsp_init(&h, bit_depth);
73 42 check_dequant(&h, bit_depth);
74 }
75 14 report("dequant");
76 14 }
77