FFmpeg
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
alacdsp.c
Go to the documentation of this file.
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 
28 #define BUF_SIZE 256
29 #define MAX_CHANNELS 2
30 
31 #define randomize_buffers() \
32  do { \
33  int i; \
34  for (i = 0; i < BUF_SIZE*MAX_CHANNELS; i++) { \
35  int32_t r = sign_extend(rnd(), 24); \
36  ref_buf[i] = r; \
37  new_buf[i] = r; \
38  } \
39  } while (0)
40 
41 static void check_decorrelate_stereo(void)
42 {
44  LOCAL_ALIGNED_16(int32_t, new_buf, [BUF_SIZE*MAX_CHANNELS]);
45  int32_t *ref[2] = { &ref_buf[BUF_SIZE*0], &ref_buf[BUF_SIZE*1] };
46  int32_t *new[2] = { &new_buf[BUF_SIZE*0], &new_buf[BUF_SIZE*1] };
48 
49  ff_alacdsp_init(&c);
50  if (check_func(c.decorrelate_stereo, "alac_decorrelate_stereo")) {
51  int len = (rnd() & 0xFF) + 1;
52  int shift = rnd() & 0x1F;
53  int weight = rnd() & 0xFF;
54  declare_func(void, int32_t *buf[2], int len, int shift, int weight);
55 
57  call_ref(ref, len, shift, weight);
58  call_new(new, len, shift, weight);
59  if (memcmp(ref[0], new[0], len * sizeof(int32_t)) ||
60  memcmp(ref[1], new[1], len * sizeof(int32_t)))
61  fail();
62  bench_new(new, BUF_SIZE, shift, weight);
63  }
64 
65  report("decorrelate_stereo");
66 }
67 
68 #undef randomize_buffers
69 #define randomize_buffers() \
70  do { \
71  int i, j; \
72  for (i = 0; i < BUF_SIZE; i++) { \
73  for (j = 0; j < ch; j++) { \
74  int32_t r = sign_extend(rnd(), 24); \
75  ref[j][i] = r; \
76  new[j][i] = r; \
77  r = rnd() & 0xFF; \
78  ref_ebb[j][i] = r; \
79  new_ebb[j][i] = r; \
80  } \
81  } \
82  } while (0)
83 
84 static void check_append_extra_bits(void)
85 {
87  LOCAL_ALIGNED_16(int32_t, new_buf, [BUF_SIZE*MAX_CHANNELS*2]);
88  int32_t *ref[2] = { &ref_buf[BUF_SIZE*0], &ref_buf[BUF_SIZE*1] };
89  int32_t *new[2] = { &new_buf[BUF_SIZE*0], &new_buf[BUF_SIZE*1] };
90  int32_t *ref_ebb[2] = { &ref_buf[BUF_SIZE*2], &ref_buf[BUF_SIZE*3] };
91  int32_t *new_ebb[2] = { &new_buf[BUF_SIZE*2], &new_buf[BUF_SIZE*3] };
93  static const char * const channels[2] = { "mono", "stereo" };
94  int ch;
95 
96  ff_alacdsp_init(&c);
97  for (ch = 1; ch <= 2; ch++) {
98  if (check_func(c.append_extra_bits[ch-1], "alac_append_extra_bits_%s", channels[ch-1])) {
99  int len = (rnd() & 0xFF) + 1;
100  declare_func(void, int32_t *buf[2], int32_t *ebb[2], int ebits, int ch, int len);
101 
103  call_ref(ref, ref_ebb, 8, ch, len);
104  call_new(new, new_ebb, 8, ch, len);
105  if ( memcmp(ref[0], new[0], len * sizeof(int32_t)) ||
106  (ch == 2 && memcmp(ref[1], new[1], len * sizeof(int32_t))))
107  fail();
108  bench_new(new, new_ebb, 8, ch, BUF_SIZE);
109  }
110  }
111 
112  report("append_extra_bits");
113 }
114 
116 {
119 }
static int shift(int a, int b)
Definition: sonic.c:82
#define BUF_SIZE
Definition: alacdsp.c:28
#define MAX_CHANNELS
Definition: alacdsp.c:29
void checkasm_check_alacdsp(void)
Definition: alacdsp.c:115
#define report
Definition: checkasm.h:84
#define declare_func(ret,...)
Definition: checkasm.h:77
static void check_decorrelate_stereo(void)
Definition: alacdsp.c:41
#define fail()
Definition: checkasm.h:81
common internal API header
static void check_append_extra_bits(void)
Definition: alacdsp.c:84
#define randomize_buffers()
Definition: alacdsp.c:69
int32_t
#define call_ref(...)
Definition: checkasm.h:87
void * buf
Definition: avisynth_c.h:553
#define check_func(func,...)
Definition: checkasm.h:73
void(* append_extra_bits[2])(int32_t *buffer[2], int32_t *extra_bits_buffer[2], int extra_bits, int channels, int nb_samples)
Definition: alacdsp.h:27
static int weight(int i, int blen, int offset)
Definition: diracdec.c:1429
common internal and external API header
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:107
static double c[64]
#define rnd()
Definition: checkasm.h:66
void(* decorrelate_stereo)(int32_t *buffer[2], int nb_samples, int decorr_shift, int decorr_left_weight)
Definition: alacdsp.h:25
int len
#define bench_new(...)
Definition: checkasm.h:173
#define LOCAL_ALIGNED_16(t, v,...)
Definition: internal.h:121
#define call_new(...)
Definition: checkasm.h:142
av_cold void ff_alacdsp_init(ALACDSPContext *c)
Definition: alacdsp.c:55