FFmpeg
flacdsp.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/flacdsp.h"
24 #include "libavutil/common.h"
25 #include "libavutil/internal.h"
26 #include "libavutil/intreadwrite.h"
27 #include "libavutil/mem_internal.h"
28 
29 #define BUF_SIZE 256
30 #define MAX_CHANNELS 8
31 
32 #define randomize_buffers() \
33  do { \
34  int i, j; \
35  for (i = 0; i < BUF_SIZE; i += 4) { \
36  for (j = 0; j < channels; j++) { \
37  uint32_t r = rnd() & (1 << (bits - 2)) - 1; \
38  AV_WN32A(ref_src[j] + i, r); \
39  AV_WN32A(new_src[j] + i, r); \
40  } \
41  } \
42  } while (0)
43 
44 static void check_decorrelate(uint8_t **ref_dst, uint8_t **ref_src, uint8_t **new_dst, uint8_t **new_src,
45  int channels, int bits) {
46  declare_func(void, uint8_t **out, int32_t **in, int channels, int len, int shift);
47 
49  call_ref(ref_dst, (int32_t **)ref_src, channels, BUF_SIZE / sizeof(int32_t), 8);
50  call_new(new_dst, (int32_t **)new_src, channels, BUF_SIZE / sizeof(int32_t), 8);
51  if (memcmp(*ref_dst, *new_dst, bits == 16 ? BUF_SIZE * (channels/2) : BUF_SIZE * channels) ||
52  memcmp(*ref_src, *new_src, BUF_SIZE * channels))
53  fail();
54  bench_new(new_dst, (int32_t **)new_src, channels, BUF_SIZE / sizeof(int32_t), 8);
55 }
56 
58 {
59  LOCAL_ALIGNED_16(uint8_t, ref_dst, [BUF_SIZE*MAX_CHANNELS]);
60  LOCAL_ALIGNED_16(uint8_t, ref_buf, [BUF_SIZE*MAX_CHANNELS]);
61  LOCAL_ALIGNED_16(uint8_t, new_dst, [BUF_SIZE*MAX_CHANNELS]);
62  LOCAL_ALIGNED_16(uint8_t, new_buf, [BUF_SIZE*MAX_CHANNELS]);
63  uint8_t *ref_src[] = { &ref_buf[BUF_SIZE*0], &ref_buf[BUF_SIZE*1], &ref_buf[BUF_SIZE*2], &ref_buf[BUF_SIZE*3],
64  &ref_buf[BUF_SIZE*4], &ref_buf[BUF_SIZE*5], &ref_buf[BUF_SIZE*6], &ref_buf[BUF_SIZE*7] };
65  uint8_t *new_src[] = { &new_buf[BUF_SIZE*0], &new_buf[BUF_SIZE*1], &new_buf[BUF_SIZE*2], &new_buf[BUF_SIZE*3],
66  &new_buf[BUF_SIZE*4], &new_buf[BUF_SIZE*5], &new_buf[BUF_SIZE*6], &new_buf[BUF_SIZE*7] };
67  static const char * const names[3] = { "ls", "rs", "ms" };
68  static const struct {
69  enum AVSampleFormat fmt;
70  int bits;
71  } fmts[] = {
72  { AV_SAMPLE_FMT_S16, 16 },
73  { AV_SAMPLE_FMT_S32, 32 },
74  };
76  int i, j;
77 
78  for (i = 0; i < 2; i++) {
79  ff_flacdsp_init(&h, fmts[i].fmt, 2, 0);
80  for (j = 0; j < 3; j++)
81  if (check_func(h.decorrelate[j], "flac_decorrelate_%s_%d", names[j], fmts[i].bits))
82  check_decorrelate(&ref_dst, ref_src, &new_dst, new_src, 2, fmts[i].bits);
83  for (j = 2; j <= MAX_CHANNELS; j += 2) {
84  ff_flacdsp_init(&h, fmts[i].fmt, j, 0);
85  if (check_func(h.decorrelate[0], "flac_decorrelate_indep%d_%d", j, fmts[i].bits))
86  check_decorrelate(&ref_dst, ref_src, &new_dst, new_src, j, fmts[i].bits);
87  }
88  }
89 
90  report("decorrelate");
91 }
mem_internal.h
out
FILE * out
Definition: movenc.c:54
ff_flacdsp_init
av_cold void ff_flacdsp_init(FLACDSPContext *c, enum AVSampleFormat fmt, int channels, int bps)
Definition: flacdsp.c:88
check_func
#define check_func(func,...)
Definition: checkasm.h:118
flacdsp.h
call_ref
#define call_ref(...)
Definition: checkasm.h:133
fail
#define fail()
Definition: checkasm.h:127
checkasm.h
intreadwrite.h
bits
uint8_t bits
Definition: vp3data.h:141
LOCAL_ALIGNED_16
#define LOCAL_ALIGNED_16(t, v,...)
Definition: mem_internal.h:130
channels
channels
Definition: aptx.h:33
checkasm_check_flacdsp
void checkasm_check_flacdsp(void)
Definition: flacdsp.c:57
call_new
#define call_new(...)
Definition: checkasm.h:205
MAX_CHANNELS
#define MAX_CHANNELS
Definition: flacdsp.c:30
report
#define report
Definition: checkasm.h:130
i
int i
Definition: input.c:406
bench_new
#define bench_new(...)
Definition: checkasm.h:268
check_decorrelate
static void check_decorrelate(uint8_t **ref_dst, uint8_t **ref_src, uint8_t **new_dst, uint8_t **new_src, int channels, int bits)
Definition: flacdsp.c:44
randomize_buffers
#define randomize_buffers()
Definition: flacdsp.c:32
internal.h
common.h
AVSampleFormat
AVSampleFormat
Audio sample formats.
Definition: samplefmt.h:58
AV_SAMPLE_FMT_S16
@ AV_SAMPLE_FMT_S16
signed 16 bits
Definition: samplefmt.h:61
len
int len
Definition: vorbis_enc_data.h:426
shift
static int shift(int a, int b)
Definition: sonic.c:83
declare_func
#define declare_func(ret,...)
Definition: checkasm.h:122
int32_t
int32_t
Definition: audioconvert.c:56
h
h
Definition: vp9dsp_template.c:2038
BUF_SIZE
#define BUF_SIZE
Definition: flacdsp.c:29
AV_SAMPLE_FMT_S32
@ AV_SAMPLE_FMT_S32
signed 32 bits
Definition: samplefmt.h:62
FLACDSPContext
Definition: flacdsp.h:26