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

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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
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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, 1998, 1999, 2000, 2001, 2002 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.cpp
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28 //
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29 #include "AudioFilePlayer.h"
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30
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31 void ThrowResult (OSStatus result, const char* str)
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32 {
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33 SDL_SetError ("Error: %s %d", str, result);
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34 throw result;
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35 }
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36
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37 #if DEBUG
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38 void PrintStreamDesc (AudioStreamBasicDescription *inDesc)
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39 {
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40 if (!inDesc) {
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41 printf ("Can't print a NULL desc!\n");
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42 return;
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43 }
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44
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45 printf ("- - - - - - - - - - - - - - - - - - - -\n");
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46 printf (" Sample Rate:%f\n", inDesc->mSampleRate);
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47 printf (" Format ID:%s\n", (char*)&inDesc->mFormatID);
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48 printf (" Format Flags:%lX\n", inDesc->mFormatFlags);
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49 printf (" Bytes per Packet:%ld\n", inDesc->mBytesPerPacket);
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50 printf (" Frames per Packet:%ld\n", inDesc->mFramesPerPacket);
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51 printf (" Bytes per Frame:%ld\n", inDesc->mBytesPerFrame);
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52 printf (" Channels per Frame:%ld\n", inDesc->mChannelsPerFrame);
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53 printf (" Bits per Channel:%ld\n", inDesc->mBitsPerChannel);
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54 printf ("- - - - - - - - - - - - - - - - - - - -\n");
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55 }
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56 #endif
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57
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58 OSStatus AudioFileManager::FileInputProc (void *inRefCon,
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59 AudioUnitRenderActionFlags inActionFlags,
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60 const AudioTimeStamp *inTimeStamp,
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61 UInt32 inBusNumber,
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62 AudioBuffer *ioData)
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63 {
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64 AudioFileManager* THIS = (AudioFileManager*)inRefCon;
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65 return THIS->Render(*ioData);
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66 }
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67
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68 OSStatus AudioFileManager::Render (AudioBuffer &ioData)
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69 {
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70 OSStatus result = noErr;
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71
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72 if (mBufferOffset >= mBufferSize) {
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73 result = GetFileData(&mTmpBuffer, &mBufferSize);
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74 if (result) {
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75 SDL_SetError ("AudioConverterFillBuffer:%ld\n", result);
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76 mParent.DoNotification (result);
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77 return result;
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78 }
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79
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80 mBufferOffset = 0;
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81 }
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82
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83 if (ioData.mDataByteSize > mBufferSize - mBufferOffset)
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84 ioData.mDataByteSize = mBufferSize - mBufferOffset;
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85 ioData.mData = (char *)mTmpBuffer + mBufferOffset;
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86 mBufferOffset += ioData.mDataByteSize;
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87
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88 mByteCounter += ioData.mDataByteSize;
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89 AfterRender();
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90 return result;
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91 }
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92
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93 AudioFileManager::~AudioFileManager ()
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94 {
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95 if (mFileBuffer) {
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96 free (mFileBuffer);
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97 mFileBuffer = 0;
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98 }
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99 }
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100
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101 AudioFilePlayer::AudioFilePlayer (const FSRef *inFileRef)
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102 : mConnected (false),
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103 mAudioFileManager (0),
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104 mNotifier (0),
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105 mStartFrame (0)
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106 {
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107 SInt64 fileDataSize = 0;
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108
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109 OpenFile (inFileRef, fileDataSize);
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110
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111 // we want about 4 seconds worth of data for the buffer
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112 int bytesPerSecond = UInt32 (4 * mFileDescription.mSampleRate * mFileDescription.mBytesPerFrame);
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113
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114 #if DEBUG
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115 printf("File format:\n");
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116 PrintStreamDesc (&mFileDescription);
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117 #endif
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118
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119 mAudioFileManager = new AudioFileManager (*this,
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120 mForkRefNum,
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121 fileDataSize,
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122 bytesPerSecond);
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123 }
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124
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125 void AudioFilePlayer::SetDestination (AudioUnit &inDestUnit)
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126 {
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127 if (mConnected) throw static_cast<OSStatus>(-1); //can't set dest if already engaged
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128
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129 mPlayUnit = inDestUnit;
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130
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131 OSStatus result = noErr;
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132
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133
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134 //we can "down" cast a component instance to a component
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135 ComponentDescription desc;
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136 result = GetComponentInfo ((Component)inDestUnit, &desc, 0, 0, 0);
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137 THROW_RESULT("GetComponentInfo")
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138
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139 // we're going to use this to know which convert routine to call
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140 // a v1 audio unit will have a type of 'aunt'
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141 // a v2 audio unit will have one of several different types.
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142 if (desc.componentType != kAudioUnitComponentType) {
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143 result = badComponentInstance;
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144 THROW_RESULT("BAD COMPONENT")
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145 }
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146
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147 /* Set the input format of the audio unit. */
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148 result = AudioUnitSetProperty (inDestUnit,
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149 kAudioUnitProperty_StreamFormat,
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150 kAudioUnitScope_Input,
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151 0,
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152 &mFileDescription,
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153 sizeof (mFileDescription));
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154 THROW_RESULT("AudioUnitSetProperty")
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155 }
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156
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157 void AudioFilePlayer::SetStartFrame (int frame)
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158 {
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159 SInt64 position = frame * 2352;
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160
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161 mStartFrame = frame;
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162 mAudioFileManager->SetPosition (position);
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163 }
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164
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165
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166 int AudioFilePlayer::GetCurrentFrame ()
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167 {
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168 return mStartFrame + (mAudioFileManager->GetByteCounter() / 2352);
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169 }
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170
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171 void AudioFilePlayer::SetStopFrame (int frame)
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172 {
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173 SInt64 position = frame * 2352;
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174
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175 mAudioFileManager->SetEndOfFile (position);
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176 }
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177
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178 AudioFilePlayer::~AudioFilePlayer()
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179 {
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180 Disconnect();
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181
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182 if (mAudioFileManager) {
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183 delete mAudioFileManager;
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184 mAudioFileManager = 0;
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185 }
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186
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187 if (mForkRefNum) {
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188 FSClose (mForkRefNum);
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189 mForkRefNum = 0;
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190 }
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191 }
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192
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193 void AudioFilePlayer::Connect()
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194 {
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195 #if DEBUG
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196 printf ("Connect:%x, engaged=%d\n", (int)mPlayUnit, (mConnected ? 1 : 0));
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197 #endif
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198 if (!mConnected)
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199 {
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200 mAudioFileManager->DoConnect();
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201
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202
613
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203 // set the render callback for the file data to be supplied to the sound converter AU
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204 mInputCallback.inputProc = AudioFileManager::FileInputProc;
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205 mInputCallback.inputProcRefCon = mAudioFileManager;
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206
768
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207 OSStatus result = AudioUnitSetProperty (mPlayUnit,
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208 kAudioUnitProperty_SetInputCallback,
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209 kAudioUnitScope_Input,
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210 0,
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211 &mInputCallback,
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212 sizeof(mInputCallback));
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213 THROW_RESULT("AudioUnitSetProperty")
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214 mConnected = true;
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215 }
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216 }
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217
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218 // warning noted, now please go away ;-)
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219 // #warning This should redirect the calling of notification code to some other thread
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220 void AudioFilePlayer::DoNotification (OSStatus inStatus) const
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221 {
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222 AudioFilePlayer* THIS = const_cast<AudioFilePlayer*>(this);
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223
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224 if (mNotifier) {
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225 (*mNotifier) (mRefCon, inStatus);
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226 } else {
613
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227 SDL_SetError ("Notification posted with no notifier in place");
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228
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229 if (inStatus == kAudioFilePlay_FileIsFinished)
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230 THIS->Disconnect();
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231 else if (inStatus != kAudioFilePlayErr_FilePlayUnderrun)
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232 THIS->Disconnect();
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233 }
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234 }
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235
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236 void AudioFilePlayer::Disconnect ()
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237 {
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238 #if DEBUG
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239 printf ("Disconnect:%x,%ld, engaged=%d\n", (int)mPlayUnit, 0, (mConnected ? 1 : 0));
613
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240 #endif
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241 if (mConnected)
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242 {
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243 mConnected = false;
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244
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245 mInputCallback.inputProc = 0;
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246 mInputCallback.inputProcRefCon = 0;
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247 OSStatus result = AudioUnitSetProperty (mPlayUnit,
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248 kAudioUnitProperty_SetInputCallback,
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249 kAudioUnitScope_Input,
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250 0,
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251 &mInputCallback,
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252 sizeof(mInputCallback));
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253 if (result)
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254 SDL_SetError ("AudioUnitSetProperty:RemoveInputCallback:%ld", result);
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255
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256 mAudioFileManager->Disconnect();
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257 }
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258 }
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259
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260 struct SSNDData {
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261 UInt32 offset;
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262 UInt32 blockSize;
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263 };
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264
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265 void AudioFilePlayer::OpenFile (const FSRef *inRef, SInt64& outFileDataSize)
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266 {
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267 ContainerChunk chunkHeader;
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268 ChunkHeader chunk;
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269 SSNDData ssndData;
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270
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271 OSErr result;
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272 HFSUniStr255 dfName;
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273 ByteCount actual;
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274 SInt64 offset;
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275
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276 // Open the data fork of the input file
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277 result = FSGetDataForkName(&dfName);
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278 THROW_RESULT("AudioFilePlayer::OpenFile(): FSGetDataForkName")
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279
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280 result = FSOpenFork(inRef, dfName.length, dfName.unicode, fsRdPerm, &mForkRefNum);
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281 THROW_RESULT("AudioFilePlayer::OpenFile(): FSOpenFork")
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282
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283 // Read the file header, and check if it's indeed an AIFC file
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284 result = FSReadFork(mForkRefNum, fsAtMark, 0, sizeof(chunkHeader), &chunkHeader, &actual);
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285 THROW_RESULT("AudioFilePlayer::OpenFile(): FSReadFork")
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286
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287 if (chunkHeader.ckID != 'FORM') {
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288 result = -1;
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289 THROW_RESULT("AudioFilePlayer::OpenFile(): chunk id is not 'FORM'");
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290 }
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291
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292 if (chunkHeader.formType != 'AIFC') {
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293 result = -1;
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294 THROW_RESULT("AudioFilePlayer::OpenFile(): file format is not 'AIFC'");
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295 }
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296
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297 // Search for the SSND chunk. We ignore all compression etc. information
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298 // in other chunks. Of course that is kind of evil, but for now we are lazy
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299 // and rely on the cdfs to always give us the same fixed format.
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300 // TODO: Parse the COMM chunk we currently skip to fill in mFileDescription.
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301 offset = 0;
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302 do {
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303 result = FSReadFork(mForkRefNum, fsFromMark, offset, sizeof(chunk), &chunk, &actual);
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304 THROW_RESULT("AudioFilePlayer::OpenFile(): FSReadFork")
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305
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306 // Skip the chunk data
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307 offset = chunk.ckSize;
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308 } while (chunk.ckID != 'SSND');
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309
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310 // Read the header of the SSND chunk. After this, we are positioned right
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311 // at the start of the audio data.
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312 result = FSReadFork(mForkRefNum, fsAtMark, 0, sizeof(ssndData), &ssndData, &actual);
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313 THROW_RESULT("AudioFilePlayer::OpenFile(): FSReadFork")
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314
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315 result = FSSetForkPosition(mForkRefNum, fsFromMark, ssndData.offset);
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316 THROW_RESULT("AudioFilePlayer::OpenFile(): FSSetForkPosition")
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317
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318 // Data size
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319 outFileDataSize = chunk.ckSize - ssndData.offset - 8;
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320
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321 // File format
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322 mFileDescription.mSampleRate = 44100;
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323 mFileDescription.mFormatID = kAudioFormatLinearPCM;
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324 mFileDescription.mFormatFlags = kLinearPCMFormatFlagIsPacked | kLinearPCMFormatFlagIsSignedInteger;
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325 mFileDescription.mBytesPerPacket = 4;
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326 mFileDescription.mFramesPerPacket = 1;
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327 mFileDescription.mBytesPerFrame = 4;
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328 mFileDescription.mChannelsPerFrame = 2;
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329 mFileDescription.mBitsPerChannel = 16;
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330 }