FFmpeg
vorbisdsp.c
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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 <float.h>
20 
21 #include "libavutil/mem_internal.h"
22 
23 #include "libavcodec/vorbisdsp.h"
24 
25 #include "checkasm.h"
26 
27 #define LEN 512
28 
29 #define randomize_buffer(buf) \
30 do { \
31  double bmg[2], stddev = 10.0, mean = 0.0; \
32  \
33  for (int i = 0; i < LEN; i += 2) { \
34  av_bmg_get(&checkasm_lfg, bmg); \
35  buf[i] = bmg[0] * stddev + mean; \
36  buf[i + 1] = bmg[1] * stddev + mean; \
37  } \
38 } while(0);
39 
40 static void test_inverse_coupling(void)
41 {
42  LOCAL_ALIGNED_16(float, src0, [LEN]);
43  LOCAL_ALIGNED_16(float, src1, [LEN]);
44  LOCAL_ALIGNED_16(float, cdst, [LEN]);
45  LOCAL_ALIGNED_16(float, odst, [LEN]);
46  LOCAL_ALIGNED_16(float, cdst1, [LEN]);
47  LOCAL_ALIGNED_16(float, odst1, [LEN]);
48 
49  declare_func(void, float *restrict mag, float *restrict ang,
50  ptrdiff_t blocksize);
51 
54 
55  memcpy(cdst, src0, LEN * sizeof(*src0));
56  memcpy(cdst1, src1, LEN * sizeof(*src1));
57  memcpy(odst, src0, LEN * sizeof(*src0));
58  memcpy(odst1, src1, LEN * sizeof(*src1));
59 
60  call_ref(cdst, cdst1, LEN);
61  call_new(odst, odst1, LEN);
62  for (int i = 0; i < LEN; i++) {
63  if (!float_near_abs_eps(cdst[i], odst[i], FLT_EPSILON) ||
64  !float_near_abs_eps(cdst1[i], odst1[i], FLT_EPSILON)) {
65  fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
66  i, cdst[i], odst[i], cdst[i] - odst[i]);
67  fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
68  i, cdst1[i], odst1[i], cdst1[i] - odst1[i]);
69  fail();
70  break;
71  }
72  }
74 }
75 
77 {
78  VorbisDSPContext dsp;
79 
80  ff_vorbisdsp_init(&dsp);
81 
82  if (check_func(dsp.vorbis_inverse_coupling, "inverse_coupling"))
84  report("inverse_coupling");
85 }
checkasm_check_vorbisdsp
void checkasm_check_vorbisdsp(void)
Definition: vorbisdsp.c:76
mem_internal.h
src1
const pixel * src1
Definition: h264pred_template.c:421
float_near_abs_eps
int float_near_abs_eps(float a, float b, float eps)
Definition: checkasm.c:409
check_func
#define check_func(func,...)
Definition: checkasm.h:177
float.h
call_ref
#define call_ref(...)
Definition: checkasm.h:192
fail
#define fail()
Definition: checkasm.h:186
checkasm.h
VorbisDSPContext
Definition: vorbisdsp.h:24
LEN
#define LEN
Definition: vorbisdsp.c:27
LOCAL_ALIGNED_16
#define LOCAL_ALIGNED_16(t, v,...)
Definition: mem_internal.h:150
call_new
#define call_new(...)
Definition: checkasm.h:295
VorbisDSPContext::vorbis_inverse_coupling
void(* vorbis_inverse_coupling)(float *mag, float *ang, ptrdiff_t blocksize)
Definition: vorbisdsp.h:26
vorbisdsp.h
randomize_buffer
#define randomize_buffer(buf)
Definition: vorbisdsp.c:29
report
#define report
Definition: checkasm.h:189
bench_new
#define bench_new(...)
Definition: checkasm.h:366
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:256
test_inverse_coupling
static void test_inverse_coupling(void)
Definition: vorbisdsp.c:40
ff_vorbisdsp_init
av_cold void ff_vorbisdsp_init(VorbisDSPContext *dsp)
Definition: vorbisdsp.c:46
src0
const pixel *const src0
Definition: h264pred_template.c:420
declare_func
#define declare_func(ret,...)
Definition: checkasm.h:181