annotate src/cdrom/macosx/AudioFilePlayer.h @ 1135:cf6133247d34

Mac Classic and CodeWarrior patches. --ryan. From: =?ISO-8859-1?Q?Anders_F_Bj=F6rklund?= <afb@algonet.se> Subject: Re: [SDL] Updated Mac patch Date: Tue, 6 Sep 2005 15:21:27 +0200 To: A list for developers using the SDL library <sdl@libsdl.org> Earlier, I wrote: > Updated the previous Mac patch to disable Carbon by default. > Also "fixed" the SDL.spec again, so that it builds on Darwin. > > http://www.algonet.se/~afb/SDL-1.2.9-mac.patch > Also applied fine to SDL12 CVS, when I tried it. > > Haven't completed any new packaging or projects for Xcode/PB, > but it seems to build and install fine here (in development). Tested the new patch to build with old CodeWarrior and MPW, and it seems it needed some hacks with those old headers... Just in case you want to support the archeological versions - here is a small add-on to the above patch, to fix those... http://www.algonet.se/~afb/SDL-1.2.9-classic.patch I couldn't get the old CW5 projects to build without a few modifications - such as deleting the stray old header in: "CWprojects/Support/Carbon/Include/ConditionalMacros.h" ? But I updated both projects to CW6 too and built for Carbon, and it ran all of the Mac test projects without any problems. The MPW file seems to have compiled, with a small order change. As long as you're still shipping the CWProjects and MPWmake with the download, they should probably be updated/fixed ? (another "solution" would of course be to just delete them) I'll post my new projects along with the new Xcode projects later on, along with XML exports of the various .mcp files. (CW5 builds for Classic / "PPC", and CW6 builds for Carbon) It'll be packaged as a part of the next SpriteWorld X release... http://spriteworldx.sourceforge.net/ [Classic/Carbon/Win/X11] --anders
author Ryan C. Gordon <icculus@icculus.org>
date Thu, 08 Sep 2005 06:34:28 +0000
parents f8d5ddc7aef1
children 71a2648acc75
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21
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22 This file based on Apple sample code. We haven't changed the file name,
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23 so if you want to see the original search for it on apple.com/developer
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24 */
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25
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26 //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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27 // AudioFilePlayer.h
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28 //
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29 #ifndef __AudioFilePlayer_H__
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30 #define __AudioFilePlayer_H__
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31
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32 #include <CoreServices/CoreServices.h>
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33
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34 #include <AudioUnit/AudioUnit.h>
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35
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36 #include "SDL_error.h"
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37
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38 const char* AudioFilePlayerErrorStr (OSStatus error);
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39
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40 void ThrowResult (OSStatus result, const char *str);
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41
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42 #define THROW_RESULT(str) \
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43 if (result) { \
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44 ThrowResult (result, str); \
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45 }
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46
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47 typedef void (*AudioFilePlayNotifier)(void *inRefCon,
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48 OSStatus inStatus);
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49
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50 enum {
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51 kAudioFilePlayErr_FilePlayUnderrun = -10000,
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52 kAudioFilePlay_FileIsFinished = -10001,
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53 kAudioFilePlay_PlayerIsUninitialized = -10002
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54 };
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55
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56
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57 class AudioFileManager;
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58
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59 #pragma mark __________ AudioFilePlayer
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60 class AudioFilePlayer
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61 {
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62 public:
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63 AudioFilePlayer (const FSRef *inFileRef);
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64
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65 ~AudioFilePlayer();
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66
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67 void SetDestination (AudioUnit &inDestUnit);
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68
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69 void SetNotifier (AudioFilePlayNotifier inNotifier, void *inRefCon)
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70 {
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71 mNotifier = inNotifier;
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72 mRefCon = inRefCon;
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73 }
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74
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75 void SetStartFrame (int frame); // seek in the file
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76
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77 int GetCurrentFrame (); // get the current frame position
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78
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79 void SetStopFrame (int frame); // set limit in the file
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80
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81 void Connect();
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82
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83 void Disconnect();
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84
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85 void DoNotification (OSStatus inError) const;
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86
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87 bool IsConnected () const { return mConnected; }
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88
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89 AudioUnit GetDestUnit () const { return mPlayUnit; }
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90
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91 #if DEBUG
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92 void Print() const
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93 {
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94 printf ("Is Connected:%s\n", (IsConnected() ? "true" : "false"));
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95 printf ("- - - - - - - - - - - - - - \n");
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96 }
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97 #endif
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98
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99 private:
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100 AudioUnit mPlayUnit;
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101 SInt16 mForkRefNum;
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102
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103 AudioUnitInputCallback mInputCallback;
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104
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105 AudioStreamBasicDescription mFileDescription;
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106
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107 bool mConnected;
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108
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109 AudioFileManager* mAudioFileManager;
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110
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111 AudioFilePlayNotifier mNotifier;
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112 void* mRefCon;
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113
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114 int mStartFrame;
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115
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116 #pragma mark __________ Private_Methods
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117
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118 void OpenFile (const FSRef *inRef, SInt64& outFileSize);
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119 };
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120
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121 #pragma mark __________ AudioFileManager
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122 class AudioFileManager
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123 {
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124 public:
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125 AudioFileManager (AudioFilePlayer &inParent,
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126 SInt16 inForkRefNum,
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127 SInt64 inFileLength,
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128 UInt32 inChunkSize);
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129
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130 ~AudioFileManager();
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131
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132
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133 // this method should NOT be called by an object of this class
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134 // as it is called by the parent's Disconnect() method
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135 void Disconnect ();
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136
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137 void DoConnect ();
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138
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139 OSStatus Read(char *buffer, UInt32 *len);
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140
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141 const char* GetFileBuffer () { return mFileBuffer; }
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142
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143 const AudioFilePlayer& GetParent () const { return mParent; }
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144
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145 void SetPosition (SInt64 pos); // seek/rewind in the file
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146
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147 int GetByteCounter () { return mByteCounter; } // return actual bytes streamed to audio hardware
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148
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149 void SetEndOfFile (SInt64 pos); // set the "EOF" (will behave just like it reached eof)
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150
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151 protected:
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152 AudioFilePlayer& mParent;
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153 SInt16 mForkRefNum;
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154 SInt64 mAudioDataOffset;
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155
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156 char* mFileBuffer;
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157
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158 int mByteCounter;
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159
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160 bool mReadFromFirstBuffer;
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161 bool mLockUnsuccessful;
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162 bool mIsEngaged;
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163
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164 int mNumTimesAskedSinceFinished;
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165
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166
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167 void* mTmpBuffer;
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168 UInt32 mBufferSize;
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169 UInt32 mBufferOffset;
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170 public:
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171 const UInt32 mChunkSize;
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172 SInt64 mFileLength;
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173 SInt64 mReadFilePosition;
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174 bool mWriteToFirstBuffer;
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175 bool mFinishedReadingData;
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176
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177 protected:
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178 OSStatus Render (AudioBuffer &ioData);
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179
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180 OSStatus GetFileData (void** inOutData, UInt32 *inOutDataSize);
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181
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182 void AfterRender ();
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183
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184 public:
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185 static OSStatus FileInputProc (void *inRefCon,
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186 AudioUnitRenderActionFlags inActionFlags,
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187 const AudioTimeStamp *inTimeStamp,
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188 UInt32 inBusNumber,
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189 AudioBuffer *ioData);
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190 };
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191
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192
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193 #endif