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 80 extern "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
