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 Portions of this file are derived from the following 3GPP standard: 20 21 3GPP TS 26.073 22 ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec 23 Available from http://www.3gpp.org 24 25 (C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC) 26 Permission to distribute, modify and use this file under the standard license 27 terms listed above has been obtained from the copyright holder. 28 ****************************************************************************************/ 29 /* 30 ------------------------------------------------------------------------------ 31 32 33 34 Pathname: ./gsm-amr/c/include/amrdecode.h 35 36 Date: 05/23/2001 37 38 ------------------------------------------------------------------------------ 39 REVISION HISTORY 40 41 Description: Added BytesUsed table so that the code can allow for padding 42 at the end of each frame. 43 44 Description: Removed function prototypes for getbits, putbits, 45 put_frame_header_in, and get_frame_header_off. Removed 46 basicop_malloc.h and replaced it with typedef.h in the include 47 section. Fixed table entries for various SID modes. Removed 48 #defines because they are not used by AMRDecode function. 49 Removed tables not used by AMRDecode function. 50 51 Description: The data type Speech_Decode_FrameState is now being passed into 52 this function as a void pointer rather than a structure of type 53 Speech_Decode_FrameState. 54 55 Description: The variable decoder_state was renamed to state_data. 56 57 Description: Updated function prototype and header template. 58 59 Description: Added mode.h and frame_type_3gpp.h to include section, and 60 removed sp_dec.h. 61 62 Description: Removed definition of Changed BytesThisFrame[] table. Added 63 extern declaration for BytesThisFrame[] table. 64 65 Description: Added #define for WMF and IF2. Updated function prototype. 66 67 Description: Moved input format #defines and BytesThisFrame table to 68 dec_input_format_tab.h and dec_input_format_tab.c, respectively. 69 Updated function prototype. 70 71 Description: Updated function prototype of AMRDecode due to the removal of 72 *prev_mode_ptr. Added extern of If2BytesPerFrame 73 74 Description: Added #defines for WMF, IF2, and ETS input formats. 75 76 Description: Changed WmfBytesPerFrame to WmfDecBytesPerFrame, and 77 If2BytesPerFrame to If2DecBytesPerFrame. 78 79 Description: Renamed #defines for input format types to make it unique to the 80 decoder. 81 82 Description: Replaced "int" and/or "char" with OSCL defined types. 83 84 Description: Moved _cplusplus #ifdef after Include section. 85 86 Description: 87 88 ------------------------------------------------------------------------------ 89 INCLUDE DESCRIPTION 90 91 This file contains all the constant definitions and prototype definitions 92 needed by the norm_s function. 93 94 ------------------------------------------------------------------------------ 95 */ 96 97 /*---------------------------------------------------------------------------- 98 ; CONTINUE ONLY IF NOT ALREADY DEFINED 99 ----------------------------------------------------------------------------*/ 100 #ifndef ARMDECODE_H 101 #define ARMDECODE_H 102 103 /*---------------------------------------------------------------------------- 104 ; INCLUDES 105 ----------------------------------------------------------------------------*/ 106 #include "typedef.h" 107 #include "mode.h" 108 #include "frame_type_3gpp.h" 109 110 /*--------------------------------------------------------------------------*/ 111 #ifdef __cplusplus 112 extern "C" 113 { 114 #endif 115 116 /*---------------------------------------------------------------------------- 117 ; MACROS 118 ; Define module specific macros here 119 ----------------------------------------------------------------------------*/ 120 121 /*---------------------------------------------------------------------------- 122 ; DEFINES 123 ; Include all pre-processor statements here. 124 ----------------------------------------------------------------------------*/ 125 #define NUM_AMRSID_RXMODE_BITS 3 126 #define AMRSID_RXMODE_BIT_OFFSET 36 127 #define AMRSID_RXTYPE_BIT_OFFSET 35 128 129 /*---------------------------------------------------------------------------- 130 ; EXTERNAL VARIABLES REFERENCES 131 ; Declare variables used in this module but defined elsewhere 132 ----------------------------------------------------------------------------*/ 133 extern const Word16 WmfDecBytesPerFrame[]; 134 extern const Word16 If2DecBytesPerFrame[]; 135 136 /*---------------------------------------------------------------------------- 137 ; SIMPLE TYPEDEF'S 138 ----------------------------------------------------------------------------*/ 139 140 /*---------------------------------------------------------------------------- 141 ; ENUMERATED TYPEDEF'S 142 ----------------------------------------------------------------------------*/ 143 144 /*---------------------------------------------------------------------------- 145 ; STRUCTURES TYPEDEF'S 146 ----------------------------------------------------------------------------*/ 147 148 /*---------------------------------------------------------------------------- 149 ; GLOBAL FUNCTION DEFINITIONS 150 ; Function Prototype declaration 151 ----------------------------------------------------------------------------*/ 152 153 Word16 AMRDecode( 154 void *state_data, 155 enum Frame_Type_3GPP frame_type, 156 UWord8 *speech_bits_ptr, 157 Word16 *raw_pcm_buffer, 158 bitstream_format input_format 159 ); 160 161 #ifdef __cplusplus 162 } 163 #endif 164 165 #endif /* _AMRDECODE_H_ */ 166