1/* ------------------------------------------------------------------
2 * Copyright (C) 1998-2009 PacketVideo
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
13 * express or implied.
14 * See the License for the specific language governing permissions
15 * and limitations under the License.
16 * -------------------------------------------------------------------
17 */
18/*
19------------------------------------------------------------------------------
20
21   PacketVideo Corp.
22   MP3 Decoder Library
23
24   Filename: pv_mp3_huffman.h
25
26   Date: 09/21/2007
27
28------------------------------------------------------------------------------
29 REVISION HISTORY
30
31 Description:
32------------------------------------------------------------------------------
33 INCLUDE DESCRIPTION
34
35
36------------------------------------------------------------------------------
37 REFERENCES
38
39 [1] ISO MPEG Audio Subgroup Software Simulation Group (1996)
40     ISO 13818-3 MPEG-2 Audio Decoder - Lower Sampling Frequency Extension
41
42------------------------------------------------------------------------------
43*/
44/*----------------------------------------------------------------------------
45; CONTINUE ONLY IF NOT ALREADY DEFINED
46----------------------------------------------------------------------------*/
47
48#ifndef PV_MP3_HUFFMAN_H
49#define PV_MP3_HUFFMAN_H
50
51
52/*----------------------------------------------------------------------------
53; INCLUDES
54----------------------------------------------------------------------------*/
55
56#include "pvmp3_audio_type_defs.h"
57#include "s_mp3bits.h"
58#include "s_tmp3dec_file.h"
59
60/*----------------------------------------------------------------------------
61; MACROS
62; Define module specific macros here
63----------------------------------------------------------------------------*/
64
65/*----------------------------------------------------------------------------
66; EXTERNAL VARIABLES REFERENCES
67----------------------------------------------------------------------------*/
68
69/*----------------------------------------------------------------------------
70; DEFINES AND SIMPLE TYPEDEF'S
71----------------------------------------------------------------------------*/
72
73
74/*----------------------------------------------------------------------------
75; GLOBAL FUNCTION DEFINITIONS
76; Function Prototype declaration
77----------------------------------------------------------------------------*/
78
79#ifdef __cplusplus
80extern "C"
81{
82#endif
83
84    int32 pvmp3_huffman_parsing(int32 is[SUBBANDS_NUMBER*FILTERBANK_BANDS],
85    granuleInfo *grInfo,
86    tmp3dec_file   *pVars,
87    int32 part2_start,
88    mp3Header *info);
89
90
91    void pvmp3_huffman_quad_decoding(struct huffcodetab *h,
92                                     int32 *is,
93                                     tmp3Bits *pMainData);
94
95    void pvmp3_huffman_pair_decoding(struct huffcodetab *h,
96                                     int32 *is,
97                                     tmp3Bits *pMainData);
98
99
100    void pvmp3_huffman_pair_decoding_linbits(struct huffcodetab *h,
101            int32 *is,
102            tmp3Bits *pMainData);
103
104#ifdef __cplusplus
105}
106#endif
107
108/*----------------------------------------------------------------------------
109; END
110----------------------------------------------------------------------------*/
111
112#endif
113
114
115
116