FFmpeg  4.4.6
alacdsp.c
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1 /*
2  * Copyright (c) 2015 James Almer
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 #include "checkasm.h"
23 #include "libavcodec/alacdsp.h"
24 #include "libavcodec/mathops.h"
25 #include "libavutil/common.h"
26 #include "libavutil/internal.h"
27 #include "libavutil/mem_internal.h"
28 
29 #define BUF_SIZE 256
30 #define MAX_CHANNELS 2
31 
32 #define randomize_buffers() \
33  do { \
34  int i; \
35  for (i = 0; i < BUF_SIZE*MAX_CHANNELS; i++) { \
36  int32_t r = sign_extend(rnd(), 24); \
37  ref_buf[i] = r; \
38  new_buf[i] = r; \
39  } \
40  } while (0)
41 
42 static void check_decorrelate_stereo(void)
43 {
46  int32_t *ref[2] = { &ref_buf[BUF_SIZE*0], &ref_buf[BUF_SIZE*1] };
47  int32_t *new[2] = { &new_buf[BUF_SIZE*0], &new_buf[BUF_SIZE*1] };
49 
51  if (check_func(c.decorrelate_stereo, "alac_decorrelate_stereo")) {
52  int len = (rnd() & 0xFF) + 1;
53  int shift = rnd() & 0x1F;
54  int weight = rnd() & 0xFF;
55  declare_func(void, int32_t *buf[2], int len, int shift, int weight);
56 
59  call_new(new, len, shift, weight);
60  if (memcmp(ref[0], new[0], len * sizeof(int32_t)) ||
61  memcmp(ref[1], new[1], len * sizeof(int32_t)))
62  fail();
64  }
65 
66  report("decorrelate_stereo");
67 }
68 
69 #undef randomize_buffers
70 #define randomize_buffers() \
71  do { \
72  int i, j; \
73  for (i = 0; i < BUF_SIZE; i++) { \
74  for (j = 0; j < ch; j++) { \
75  int32_t r = sign_extend(rnd(), 24); \
76  ref[j][i] = r; \
77  new[j][i] = r; \
78  r = rnd() & 0xFF; \
79  ref_ebb[j][i] = r; \
80  new_ebb[j][i] = r; \
81  } \
82  } \
83  } while (0)
84 
85 static void check_append_extra_bits(void)
86 {
89  int32_t *ref[2] = { &ref_buf[BUF_SIZE*0], &ref_buf[BUF_SIZE*1] };
90  int32_t *new[2] = { &new_buf[BUF_SIZE*0], &new_buf[BUF_SIZE*1] };
91  int32_t *ref_ebb[2] = { &ref_buf[BUF_SIZE*2], &ref_buf[BUF_SIZE*3] };
92  int32_t *new_ebb[2] = { &new_buf[BUF_SIZE*2], &new_buf[BUF_SIZE*3] };
94  static const char * const channels[2] = { "mono", "stereo" };
95  int ch;
96 
98  for (ch = 1; ch <= 2; ch++) {
99  if (check_func(c.append_extra_bits[ch-1], "alac_append_extra_bits_%s", channels[ch-1])) {
100  int len = (rnd() & 0xFF) + 1;
101  declare_func(void, int32_t *buf[2], int32_t *ebb[2], int ebits, int ch, int len);
102 
104  call_ref(ref, ref_ebb, 8, ch, len);
105  call_new(new, new_ebb, 8, ch, len);
106  if ( memcmp(ref[0], new[0], len * sizeof(int32_t)) ||
107  (ch == 2 && memcmp(ref[1], new[1], len * sizeof(int32_t))))
108  fail();
109  bench_new(new, new_ebb, 8, ch, BUF_SIZE);
110  }
111  }
112 
113  report("append_extra_bits");
114 }
115 
117 {
120 }
channels
Definition: aptx.h:33
int32_t
#define call_new(...)
Definition: checkasm.h:211
#define check_func(func,...)
Definition: checkasm.h:124
#define call_ref(...)
Definition: checkasm.h:139
#define rnd()
Definition: checkasm.h:117
#define fail()
Definition: checkasm.h:133
#define declare_func(ret,...)
Definition: checkasm.h:128
#define report
Definition: checkasm.h:136
#define bench_new(...)
Definition: checkasm.h:271
common internal and external API header
av_cold void ff_alacdsp_init(ALACDSPContext *c)
Definition: alacdsp.c:55
static int weight(int i, int blen, int offset)
Definition: diracdec.c:1561
common internal API header
#define LOCAL_ALIGNED_16(t, v,...)
Definition: mem_internal.h:130
static int shift(int a, int b)
Definition: sonic.c:82
#define randomize_buffers()
Definition: alacdsp.c:70
static void check_decorrelate_stereo(void)
Definition: alacdsp.c:42
static void check_append_extra_bits(void)
Definition: alacdsp.c:85
#define BUF_SIZE
Definition: alacdsp.c:29
void checkasm_check_alacdsp(void)
Definition: alacdsp.c:116
#define MAX_CHANNELS
Definition: alacdsp.c:30
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:107
int len
static double c[64]