FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/tests/checkasm/sbcdsp.c
Date: 2026-07-16 17:05:34
Exec Total Coverage
Lines: 42 44 95.5%
Functions: 3 3 100.0%
Branches: 42 82 51.2%
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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 <stddef.h>
20 #include <stdint.h>
21
22 #include "checkasm.h"
23 #include "libavcodec/sbcdsp.h"
24 #include "libavcodec/sbcdsp_data.h"
25 #include "libavutil/macros.h"
26 #include "libavutil/mem_internal.h"
27
28 enum {
29 SBC_MAX_SUBBANDS = 8,
30 };
31
32 #define randomize_buffer(buf) \
33 do { \
34 for (size_t k = 0; k < FF_ARRAY_ELEMS(buf); ++k) \
35 buf[k] = rnd(); \
36 } while (0)
37
38 14 static void check_sbc_analyze(SBCDSPContext *sbcdsp)
39 {
40 DECLARE_ALIGNED(SBC_ALIGN, int16_t, in)[10 * SBC_MAX_SUBBANDS];
41 DECLARE_ALIGNED(SBC_ALIGN, int32_t, out_ref)[SBC_MAX_SUBBANDS];
42 DECLARE_ALIGNED(SBC_ALIGN, int32_t, out_new)[SBC_MAX_SUBBANDS];
43
44 14 declare_func(void, const int16_t *in, int32_t *out, const int16_t *consts);
45
46
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 42 for (int i = 0; i < 2; ++i) {
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 28 if (check_func(i ? sbcdsp->sbc_analyze_8 : sbcdsp->sbc_analyze_4, "sbc_analyze_%u", i ? 8 : 4)) {
48
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 324 randomize_buffer(in);
49
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 36 randomize_buffer(out_ref);
50 4 memcpy(out_new, out_ref, sizeof(out_new));
51
52 // the input is always 16-byte aligned for sbc_analyze_8
53 // for sbc_analyze_4 it can be 0 or 8 mod 16.
54
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 4 const int16_t *const inp = i || rnd() & 1 ? in : in + 4;
55 // Use the proper const tables as random ones can cause overflow
56 #define CONST(SIZE, ODDEVEN) sbcdsp_analysis_consts_fixed ## SIZE ## _simd_ ## ODDEVEN
57
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 6 const int16_t *const consts = rnd() & 1 ? (i ? CONST(8, odd) : CONST(4, odd))
58
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 6 : (i ? CONST(8, even) : CONST(4, even));
59
60 4 call_ref(inp, out_ref, consts);
61 4 call_new(inp, out_new, consts);
62
63
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 4 if (memcmp(out_ref, out_new, sizeof(out_new)))
64 ✗ fail();
65
66
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 4 bench_new(inp, out_new, consts);
67 }
68 }
69 14 report("sbc_analyze");
70 14 }
71
72 14 static void check_sbc_calc_scalefactors(const SBCDSPContext *const sbcdsp)
73 {
74 DECLARE_ALIGNED(SBC_ALIGN, int32_t, sb_sample_f)[16][2][8];
75 DECLARE_ALIGNED(SBC_ALIGN, uint32_t, scale_factor_ref)[2][8];
76 DECLARE_ALIGNED(SBC_ALIGN, uint32_t, scale_factor_new)[2][8];
77
78 14 declare_func(void, const int32_t sb_sample_f[16][2][8],
79 uint32_t scale_factor[2][8],
80 int blocks, int channels, int subbands);
81
82 static int blocks = 0;
83
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 14 if (!blocks)
84 1 blocks = ((const int[]){4, 8, 12, 15, 16})[rnd() % 5];
85 14 int inited = 0;
86
87
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 18 for (int ch = 1; ch <= 2; ++ch) {
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 24 for (int subbands = 4; subbands <= 8; subbands += 4) {
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 20 if (!check_func(sbcdsp->sbc_calc_scalefactors, "calc_scalefactors_%dch_%dsubbands", ch, subbands))
90 12 return;
91
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 8 if (!inited) {
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 136 for (size_t i = 0; i < FF_ARRAY_ELEMS(sb_sample_f); ++i)
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 384 for (size_t j = 0; j < FF_ARRAY_ELEMS(sb_sample_f[0]); ++j)
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 2304 for (size_t k = 0; k < FF_ARRAY_ELEMS(sb_sample_f[0][0]); ++k)
96 2048 sb_sample_f[i][j][k] = rnd();
97 }
98
99 8 call_ref(sb_sample_f, scale_factor_ref, blocks, ch, subbands);
100 8 call_new(sb_sample_f, scale_factor_new, blocks, ch, subbands);
101
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 20 for (int i = 0; i < ch; ++i)
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 84 for (int j = 0; j < subbands; ++j)
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 72 if (scale_factor_ref[i][j] != scale_factor_new[i][j])
104 ✗ fail();
105
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 8 bench_new(sb_sample_f, scale_factor_new, blocks, ch, subbands);
107 }
108 }
109 }
110
111 14 void checkasm_check_sbcdsp(void)
112 {
113 SBCDSPContext sbcdsp;
114
115 14 ff_sbcdsp_init(&sbcdsp);
116
117 14 check_sbc_analyze(&sbcdsp);
118
119 14 check_sbc_calc_scalefactors(&sbcdsp);
120 14 report("calc_scalefactors");
121 14 }
122