FFmpeg
libavcodec
nellymoser.h
Go to the documentation of this file.
1
/*
2
* Common code between Nellymoser encoder and decoder
3
* Copyright (c) 2007 a840bda5870ba11f19698ff6eb9581dfb0f95fa5,
4
* 539459aeb7d425140b62a3ec7dbf6dc8e408a306, and
5
* 520e17cd55896441042b14df2566a6eb610ed444
6
* Copyright (c) 2007 Loic Minier <lool at dooz.org>
7
* Benjamin Larsson
8
*
9
* Permission is hereby granted, free of charge, to any person obtaining a
10
* copy of this software and associated documentation files (the "Software"),
11
* to deal in the Software without restriction, including without limitation
12
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
13
* and/or sell copies of the Software, and to permit persons to whom the
14
* Software is furnished to do so, subject to the following conditions:
15
*
16
* The above copyright notice and this permission notice shall be included in
17
* all copies or substantial portions of the Software.
18
*
19
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
24
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
25
* DEALINGS IN THE SOFTWARE.
26
*/
27
28
/**
29
* @file
30
* The 3 alphanumeric copyright notices are md5summed they are from the original
31
* implementors. The original code is available from http://code.google.com/p/nelly2pcm/
32
*/
33
34
#ifndef AVCODEC_NELLYMOSER_H
35
#define AVCODEC_NELLYMOSER_H
36
37
#include <stdint.h>
38
39
#define NELLY_BANDS 23
40
#define NELLY_BLOCK_LEN 64
41
#define NELLY_HEADER_BITS 116
42
#define NELLY_DETAIL_BITS 198
43
#define NELLY_BUF_LEN 128
44
#define NELLY_FILL_LEN 124
45
#define NELLY_BIT_CAP 6
46
#define NELLY_BASE_OFF 4228
47
#define NELLY_BASE_SHIFT 19
48
#define NELLY_SAMPLES (2 * NELLY_BUF_LEN)
49
50
extern
const
float
ff_nelly_dequantization_table
[127];
51
extern
const
uint8_t
ff_nelly_band_sizes_table
[
NELLY_BANDS
];
52
extern
const
uint16_t
ff_nelly_init_table
[64];
53
extern
const
int16_t
ff_nelly_delta_table
[32];
54
55
void
ff_nelly_get_sample_bits
(
const
float
*buf,
int
*
bits
);
56
57
#endif
/* AVCODEC_NELLYMOSER_H */
NELLY_BANDS
#define NELLY_BANDS
Definition:
nellymoser.h:39
bits
uint8_t bits
Definition:
vp3data.h:128
ff_nelly_delta_table
const int16_t ff_nelly_delta_table[32]
Definition:
nellymoser.c:81
ff_nelly_get_sample_bits
void ff_nelly_get_sample_bits(const float *buf, int *bits)
Definition:
nellymoser.c:118
ff_nelly_init_table
const uint16_t ff_nelly_init_table[64]
Definition:
nellymoser.c:72
ff_nelly_band_sizes_table
const uint8_t ff_nelly_band_sizes_table[NELLY_BANDS]
Definition:
nellymoser.c:68
ff_nelly_dequantization_table
const float ff_nelly_dequantization_table[127]
Definition:
nellymoser.c:41
Generated on Thu Oct 10 2024 19:21:39 for FFmpeg by
1.8.17