FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/tests/checkasm/av_tx.c
Date: 2025-11-01 17:46:10
Exec Total Coverage
Lines: 22 22 100.0%
Functions: 2 2 100.0%
Branches: 48 78 61.5%
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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 "libavutil/mem.h"
20 #include "libavutil/mem_internal.h"
21 #include "libavutil/tx.h"
22 #include "libavutil/error.h"
23
24 #include "checkasm.h"
25
26 #include <stdlib.h>
27
28 #define EPS 0.0005
29
30 #define SCALE_NOOP(x) (x)
31 #define SCALE_INT20(x) (av_clip64(lrintf((x) * 2147483648.0), INT32_MIN, INT32_MAX) >> 12)
32
33 #define randomize_complex(BUF, LEN, TYPE, SCALE) \
34 do { \
35 TYPE *buf = (TYPE *)BUF; \
36 for (int i = 0; i < LEN; i++) { \
37 double fre = (double)rnd() / UINT_MAX; \
38 double fim = (double)rnd() / UINT_MAX; \
39 buf[i] = (TYPE){ SCALE(fre), SCALE(fim) }; \
40 } \
41 } while (0)
42
43 static const int check_lens[] = {
44 2, 4, 8, 16, 32, 64, 120, 960, 1024, 1920, 16384,
45 };
46
47 static AVTXContext *tx_refs[AV_TX_NB][2 /* Direction */][FF_ARRAY_ELEMS(check_lens)] = { 0 };
48 static int init = 0;
49
50 1 static void free_tx_refs(void)
51 {
52
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 19 for (int i = 0; i < FF_ARRAY_ELEMS(tx_refs); i++)
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 54 for (int j = 0; j < FF_ARRAY_ELEMS(*tx_refs); j++)
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 432 for (int k = 0; k < FF_ARRAY_ELEMS(**tx_refs); k++)
55 396 av_tx_uninit(&tx_refs[i][j][k]);
56 1 }
57
58 #define CHECK_TEMPLATE(PREFIX, TYPE, DIR, DATA_TYPE, SCALE_TYPE, LENGTHS, CHECK_EXPRESSION) \
59 do { \
60 int err; \
61 AVTXContext *tx; \
62 av_tx_fn fn; \
63 int num_checks = 0; \
64 int last_check = 0; \
65 \
66 for (int i = 0; i < FF_ARRAY_ELEMS(LENGTHS); i++) { \
67 int len = LENGTHS[i]; \
68 const SCALE_TYPE scale = 1.0 / len; \
69 \
70 if ((err = av_tx_init(&tx, &fn, TYPE, DIR, len, &scale, 0x0)) < 0) { \
71 fprintf(stderr, "av_tx: %s\n", av_err2str(err)); \
72 return; \
73 } \
74 \
75 if (check_func(fn, PREFIX "_%i", len)) { \
76 AVTXContext *tx_ref = tx_refs[TYPE][DIR][i]; \
77 if (!tx_ref) \
78 tx_ref = tx; \
79 num_checks++; \
80 last_check = len; \
81 call_ref(tx_ref, out_ref, in, sizeof(DATA_TYPE)); \
82 call_new(tx, out_new, in, sizeof(DATA_TYPE)); \
83 if (CHECK_EXPRESSION) { \
84 fail(); \
85 av_tx_uninit(&tx); \
86 break; \
87 } \
88 bench_new(tx, out_new, in, sizeof(DATA_TYPE)); \
89 av_tx_uninit(&tx_refs[TYPE][DIR][i]); \
90 tx_refs[TYPE][DIR][i] = tx; \
91 } else { \
92 av_tx_uninit(&tx); \
93 } \
94 } \
95 \
96 if (num_checks == 1) \
97 report(PREFIX "_%i", last_check); \
98 else if (num_checks) \
99 report(PREFIX); \
100 } while (0)
101
102 13 void checkasm_check_av_tx(void)
103 {
104 13 declare_func(void, AVTXContext *tx, void *out, void *in, ptrdiff_t stride);
105
106 13 void *in = av_malloc(16384*2*8);
107 13 void *out_ref = av_malloc(16384*2*8);
108 13 void *out_new = av_malloc(16384*2*8);
109
110
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 213005 randomize_complex(in, 16384, AVComplexFloat, SCALE_NOOP);
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 156 CHECK_TEMPLATE("float_fft", AV_TX_FLOAT_FFT, 0, AVComplexFloat, float, check_lens,
112 !float_near_abs_eps_array(out_ref, out_new, EPS, len*2));
113
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 156 CHECK_TEMPLATE("float_imdct", AV_TX_FLOAT_MDCT, 1, float, float, check_lens,
115 !float_near_abs_eps_array(out_ref, out_new, EPS, len));
116
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 213005 randomize_complex(in, 16384, AVComplexDouble, SCALE_NOOP);
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 156 CHECK_TEMPLATE("double_fft", AV_TX_DOUBLE_FFT, 0, AVComplexDouble, double, check_lens,
119 !double_near_abs_eps_array(out_ref, out_new, EPS, len*2));
120
121 13 av_free(in);
122 13 av_free(out_ref);
123 13 av_free(out_new);
124
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 13 if (!init) {
126 1 init = 1;
127 1 atexit(free_tx_refs);
128 }
129 }
130