author | Mikael Laine <mikael.laine@ixonos.com> |
Fri, 29 Jan 2010 14:08:33 +0200 | |
changeset 0 | 951a5db380a0 |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (c) 2010 Ixonos Plc. |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of the "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - Initial contribution |
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* |
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* Contributors: |
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* Ixonos Plc |
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* |
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* Description: |
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* |
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*/ |
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|
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/************************************************************************** |
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auddef.h - Constants and general declarations for MPEG type of audio formats. |
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|
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Author(s): Juha Ojanpera |
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Copyright (c) 1999-2004 by Nokia Research Center, Speech and Audio Systems. |
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*************************************************************************/ |
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|
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#ifndef MPAUD_DEF_H_ |
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#define MPAUD_DEF_H_ |
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|
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/*- Project Headers. --*/ |
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#include "defines.h" |
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|
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/************************************************************************** |
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External Objects Provided |
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*************************************************************************/ |
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|
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/*-- General MPx Definitions. --*/ |
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/* |
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#ifndef PI |
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#define PI (3.14159265358979) |
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#endif |
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#define MPEG_AUDIO_ID (1) |
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#define MPEG_PHASE2_LSF (0) |
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#define SBLIMIT (32) |
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#define SSLIMIT (18) |
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#define MAX_MONO_SAMPLES (SBLIMIT * SSLIMIT) |
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#define HAN_SIZE (512) |
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#define NUM_SUBWIN (16) |
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#define SCALE (32768L) |
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#define SYNC_WORD ((long) 0x7ff) |
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#define HEADER_BITS (20) |
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#define MAX_LONG_SFB_BANDS (22) |
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#define MAX_SHORT_SFB_BANDS (13) |
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#define MAX_BITRESER_SIZE (512) |
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#define CRC_MAX_PAYLOAD (34) |
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*/ |
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#define MP_SYNC_WORD_LENGTH (11) |
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/*-- MPEG Header Definitions - Mode Values --*/ |
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#define MPG_MD_STEREO (0) |
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#define MPG_MD_JOINT_STEREO (1) |
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#define MPG_MD_DUAL_CHANNEL (2) |
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#define MPG_MD_MONO (3) |
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/*-- Channel definitions. --*/ |
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#define MONO_CHAN (0) |
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#define MAX_CHANNELS (2) |
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#define LEFT_CHANNEL (MONO_CHAN) |
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#define RIGHT_CHANNEL (MONO_CHAN + 1) |
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/* |
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Purpose: Masks those bit fields from the header to zero that |
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do not remain fixed from frame to frame. |
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Explanation: Following fields are assumed to be fixed : |
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* 12th bit from the sync word |
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* version |
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* layer description |
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* sampling rate |
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* channel mode (layer 3 only) |
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* copyright bit |
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* original bit |
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* de-emphasis |
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|
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Following fields can vary from frame to frame : |
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* protection bit |
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* bit rate |
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* padding bit |
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* private bit |
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* channel mode extension |
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*/ |
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#define HEADER_MASK(header) ((uint32)header & 0x001E0CCF) |
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|
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/* |
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Purpose: Macro to extract layer description. |
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Explanation: This is the bit value, use MP_Header::layer_number method |
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to interpret this value. */ |
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#define LAYER_MASK(header) (((uint32)header >> 17) & 3) |
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|
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/* |
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Purpose: Frame detection status. |
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Explanation: - */ |
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typedef enum SEEK_STATUS |
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{ |
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SYNC_FOUND = 0, |
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SYNC_LOST, |
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SYNC_BITS_OUT, |
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SYNC_MP3_FREE |
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|
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} SEEK_STATUS; |
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|
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/* |
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Purpose: Sync layer codes. |
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Explanation: - */ |
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typedef enum SYNC_STATUS |
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{ |
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117 |
LAYER1_STREAM, |
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118 |
LAYER2_STREAM, |
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119 |
LAYER3_STREAM, |
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120 |
|
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121 |
INIT_LAYER1_STREAM, |
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INIT_LAYER2_STREAM, |
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123 |
INIT_LAYER3_STREAM, |
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124 |
|
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125 |
INIT_MP_STREAM, |
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126 |
GET_1ST_MPSYNC_STREAM, |
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GET_MPSYNC_STREAM, |
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GET_MPHEADER_STREAM, |
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129 |
|
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INIT_AAC_STREAM, |
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131 |
ADTS_STREAM, |
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132 |
GET_ADTSSYNC_STREAM, |
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133 |
GET_ADTSHEADER_STREAM |
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134 |
|
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135 |
} SYNC_STATUS; |
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136 |
|
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137 |
/* |
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138 |
Purpose: Bitrate modes. |
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139 |
Explanation: - */ |
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140 |
/* |
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141 |
typedef enum BrType |
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142 |
{ |
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143 |
UNKNOWN, |
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144 |
CBR, |
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145 |
VBR, |
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146 |
FREE |
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147 |
|
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148 |
} BrType; |
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149 |
*/ |
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150 |
/* |
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151 |
Purpose: |
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152 |
Explanation: - */ |
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153 |
typedef enum GLITCH |
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154 |
{ |
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155 |
GLITCH_FREE, |
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156 |
GLITCH0, |
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157 |
GLITCH1 |
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158 |
|
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159 |
} GLITCH; |
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160 |
|
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161 |
/* |
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162 |
Purpose: Message definitions. |
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163 |
Explanation: - */ |
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164 |
typedef enum MsgType |
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165 |
{ |
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166 |
NO_MESSAGES, |
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167 |
UPDATE_BUFFER, |
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168 |
SEEK_BUFFER, |
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169 |
GET_POSITION, |
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170 |
GET_SIZE |
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171 |
|
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172 |
} MsgType; |
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173 |
|
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174 |
|
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175 |
/* |
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176 |
Purpose: Definition of generic message parameter. |
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177 |
Explanation: - */ |
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178 |
typedef uint32 MsgParam; |
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179 |
|
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180 |
/* |
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181 |
Purpose: Message structure of the decoder and/or player. |
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182 |
Explanation: - */ |
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183 |
typedef struct MsgStr |
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184 |
{ |
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185 |
MsgType msgType; |
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186 |
MsgParam msgInParam; |
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187 |
MsgParam msgOutParam; |
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188 |
|
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189 |
} Msg; |
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190 |
|
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191 |
/* |
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192 |
Purpose: Execution state for user specified functions. |
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193 |
Explanation: - */ |
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194 |
typedef struct ExecStateStr |
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195 |
{ |
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196 |
GLITCH execMode; |
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197 |
int16 a0_s16[3]; |
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198 |
uint32 a0_u32[3]; |
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199 |
Msg *msg; |
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200 |
|
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201 |
} ExecState; |
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202 |
|
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203 |
/* |
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204 |
Purpose: Parent structure for sync layer processing. |
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205 |
Explanation: - */ |
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206 |
typedef struct SyncInfoStr |
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207 |
{ |
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208 |
int16 sync_length; /* Length of sync word. */ |
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209 |
int16 sync_word; /* Synchronization word. */ |
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210 |
int16 sync_mask; /* Bitmask for sync word detection. */ |
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211 |
SYNC_STATUS sync_status; /* Which layer we supposed to be decoding. */ |
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212 |
|
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213 |
} SyncInfo; |
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214 |
|
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215 |
enum |
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Committing the Video Editor package under the Eclipse Public License
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216 |
{ |
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217 |
VBR_MODE = 1, |
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218 |
FILE_SIZE_KNOWN = 2 |
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219 |
}; |
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220 |
|
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221 |
/* |
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222 |
Purpose: Frame detection status. |
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223 |
Explanation: - */ |
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224 |
/* |
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|
225 |
|
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226 |
CAN BE FOUND IN auddef.h |
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227 |
typedef enum SEEK_STATUS |
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228 |
{ |
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229 |
SYNC_FOUND, |
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230 |
SYNC_LOST, |
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231 |
SYNC_BITS_OUT |
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232 |
|
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233 |
} SEEK_STATUS; |
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234 |
*/ |
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235 |
/* |
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236 |
Purpose: State of the decoder. |
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237 |
Explanation: - */ |
951a5db380a0
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typedef enum DecState |
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239 |
{ |
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240 |
STATE_UNDEFINED, |
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241 |
DEC_INIT, |
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242 |
DEC_INIT_COMPLETE, |
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243 |
FIND_FIRST_FRAME, |
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244 |
FIND_FRAME, |
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245 |
FIND_PAYLOAD, |
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246 |
FIND_AVERAGE_BR, |
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247 |
DECODE_FRAME, |
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248 |
CORRUPTED_FRAME, |
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249 |
GET_PAYLOAD, |
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250 |
RESTART_AFTER_VBR, |
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251 |
DECODE_FRAME_CORRUPTED |
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252 |
|
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253 |
} DecState; |
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254 |
|
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255 |
/* |
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256 |
Purpose: Supported UI features. |
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257 |
Explanation: - */ |
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258 |
typedef enum UIMode |
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259 |
{ |
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260 |
UI_UNDEFINED, |
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261 |
UI_PLAY, |
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262 |
UI_STOP, |
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263 |
UI_WIND_FORWARD, |
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264 |
UI_WIND_BACKWARD, |
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265 |
UI_REPEAT_LOOP |
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266 |
|
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267 |
} UIMode; |
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268 |
|
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269 |
/* |
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270 |
Purpose: A-B repeat. |
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271 |
Explanation: - */ |
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272 |
typedef enum MARKER_ID |
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273 |
{ |
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274 |
RESET_MARKERS = -1, |
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275 |
A_MARKER, |
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276 |
B_MARKER |
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277 |
|
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278 |
} MARKER_ID; |
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279 |
|
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280 |
/* |
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281 |
Purpose: Bitrate modes. |
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282 |
Explanation: - */ |
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283 |
|
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284 |
typedef enum BrType |
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285 |
{ |
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286 |
UNKNOWN, |
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287 |
CBR, |
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288 |
VBR, |
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289 |
FREE |
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290 |
|
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291 |
} BrType; |
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292 |
|
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293 |
|
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294 |
/* |
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295 |
Purpose: Playback quality mappings. |
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296 |
Explanation: - */ |
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297 |
typedef enum QUALITY |
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298 |
{ |
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299 |
FULL_QUALITY, |
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300 |
HALF_QUALITY, |
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301 |
QUARTER_QUALITY |
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302 |
|
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303 |
} QUALITY; |
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304 |
|
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305 |
/* |
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306 |
Purpose: Error codes of the player. |
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307 |
Explanation: - */ |
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308 |
typedef enum MP3_ERROR |
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309 |
{ |
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310 |
AUDIO_OK = 0, |
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311 |
AUDIO_ERROR_CRC, |
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312 |
AUDIO_INVALID_LAYER, |
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313 |
AUDIO_INVALID_SYNTAX, |
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314 |
AUDIO_FREE_FORMAT_ERROR, |
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315 |
AUDIO_FREE_FORMAT_BR_ERROR, |
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316 |
AUDIO_BUFFER_TOO_SMALL |
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317 |
|
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318 |
} MP3_Error; |
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|
319 |
|
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320 |
/* |
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|
321 |
Purpose: General info about the file/stream. |
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|
322 |
Explanation: - */ |
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323 |
typedef struct TrackInfoStr |
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324 |
{ |
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325 |
int32 frequency; |
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326 |
int16 bitRate; |
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327 |
int16 numChannels; |
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328 |
int32 lengthInms; |
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329 |
uint32 numFrames; |
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330 |
BrType brType; |
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Committing the Video Editor package under the Eclipse Public License
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|
331 |
|
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Committing the Video Editor package under the Eclipse Public License
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332 |
} TrackInfo; |
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|
333 |
|
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Committing the Video Editor package under the Eclipse Public License
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|
334 |
/* |
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Committing the Video Editor package under the Eclipse Public License
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|
335 |
Purpose: Playback quality parameters and general init info. |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
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|
336 |
Explanation: - */ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
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|
337 |
typedef struct InitParamStr |
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Committing the Video Editor package under the Eclipse Public License
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|
338 |
{ |
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Committing the Video Editor package under the Eclipse Public License
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|
339 |
uint8 out_channels; |
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Committing the Video Editor package under the Eclipse Public License
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|
340 |
uint8 decim_factor; |
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Committing the Video Editor package under the Eclipse Public License
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341 |
uint8 window_pruning; |
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Committing the Video Editor package under the Eclipse Public License
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342 |
uint8 alias_subbands; |
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343 |
uint8 imdct_subbands; |
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344 |
uint32 specFreqBinLimit; |
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Committing the Video Editor package under the Eclipse Public License
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|
345 |
|
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346 |
int16 bitrate; |
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347 |
int32 VBRframesLimit; |
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Committing the Video Editor package under the Eclipse Public License
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|
348 |
|
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|
349 |
} InitParam; |
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Committing the Video Editor package under the Eclipse Public License
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|
350 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
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|
351 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
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|
352 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
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|
353 |
|
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354 |
#endif /*-- MPAUD_DEF_H_ --*/ |