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 Pathname: PVMP4AudioDecoderGetMemRequirements.c 21 22 ------------------------------------------------------------------------------ 23 REVISION HISTORY 24 25 Description: Copied from aac_decode_frame 26 27 Description: Cleaned up. 28 29 Description: (1) use UInt32 to replace size_t type 30 (2) memory of tDec_Int_File is splitted into 3 pieces, 31 sizeof(tDec_Int_File) is only part of the total memory 32 required. The additional memory required to decode per 33 channel information is allocated by a DPI call outside this 34 API 35 36 Who: Date: MM/DD/YYYY 37 Description: 38 39 ------------------------------------------------------------------------------ 40 INPUT AND OUTPUT DEFINITIONS 41 42 Inputs: None 43 44 Local Stores/Buffers/Pointers Needed: None 45 46 Global Stores/Buffers/Pointers Needed: None 47 48 Outputs: 49 size = amount of memory needed to be allocated by the calling 50 environment. 51 52 Pointers and Buffers Modified: None 53 54 Local Stores Modified: None 55 56 Global Stores Modified: None 57 58 ------------------------------------------------------------------------------ 59 FUNCTION DESCRIPTION 60 61 This function returns the amount of internal memory needed by the library. 62 Presently this is a constant value, but could later be more sophisticated 63 by taking into account mono or stereo, and whether LTP is to be used. 64 65 ------------------------------------------------------------------------------ 66 REQUIREMENTS 67 68 69 ------------------------------------------------------------------------------ 70 REFERENCES 71 72 73 ------------------------------------------------------------------------------ 74 PSEUDO-CODE 75 76 size = sizeof(tDec_Int_File); 77 78 RETURN (size) 79 80 ------------------------------------------------------------------------------ 81 RESOURCES USED 82 When the code is written for a specific target processor the 83 the resources used should be documented below. 84 85 STACK USAGE: [stack count for this module] + [variable to represent 86 stack usage for each subroutine called] 87 88 where: [stack usage variable] = stack usage for [subroutine 89 name] (see [filename].ext) 90 91 DATA MEMORY USED: x words 92 93 PROGRAM MEMORY USED: x words 94 95 CLOCK CYCLES: [cycle count equation for this module] + [variable 96 used to represent cycle count for each subroutine 97 called] 98 99 where: [cycle count variable] = cycle count for [subroutine 100 name] (see [filename].ext) 101 102 ------------------------------------------------------------------------------ 103 */ 104 105 106 /*---------------------------------------------------------------------------- 107 ; INCLUDES 108 ----------------------------------------------------------------------------*/ 109 110 #include "pv_audio_type_defs.h" 111 #include "s_tdec_int_file.h" 112 #include "pvmp4audiodecoder_api.h" /* Where this function is declared */ 113 114 /*---------------------------------------------------------------------------- 115 ; MACROS 116 ; Define module specific macros here 117 ----------------------------------------------------------------------------*/ 118 119 /*---------------------------------------------------------------------------- 120 ; DEFINES 121 ; Include all pre-processor statements here. Include conditional 122 ; compile variables also. 123 ----------------------------------------------------------------------------*/ 124 125 /*---------------------------------------------------------------------------- 126 ; LOCAL FUNCTION DEFINITIONS 127 ; Function Prototype declaration 128 ----------------------------------------------------------------------------*/ 129 130 /*---------------------------------------------------------------------------- 131 ; LOCAL VARIABLE DEFINITIONS 132 ; Variable declaration - defined here and used outside this module 133 ----------------------------------------------------------------------------*/ 134 135 /*---------------------------------------------------------------------------- 136 ; EXTERNAL FUNCTION REFERENCES 137 ; Declare functions defined elsewhere and referenced in this module 138 ----------------------------------------------------------------------------*/ 139 140 /*---------------------------------------------------------------------------- 141 ; EXTERNAL VARIABLES REFERENCES 142 ; Declare variables used in this module but defined elsewhere 143 ----------------------------------------------------------------------------*/ 144 145 /*---------------------------------------------------------------------------- 146 ; FUNCTION CODE 147 ----------------------------------------------------------------------------*/ 148 OSCL_EXPORT_REF UInt32 PVMP4AudioDecoderGetMemRequirements(void) 149 { 150 UInt32 size; 151 152 size = (UInt32) sizeof(tDec_Int_File); 153 154 return (size); 155 156 } /* PVMP4AudioDecoderGetMemRequirements() */ 157 158
