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comparison src/cdrom/macosx/AudioFilePlayer.h @ 935:f8d5ddc7aef1

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Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX
author Sam Lantinga <slouken@libsdl.org>
date Sat, 21 Aug 2004 02:06:30 +0000
parents b8d311d90021
children 71a2648acc75
comparison
equal deleted inserted replaced
934:af585d6efec8 935:f8d5ddc7aef1
29 #ifndef __AudioFilePlayer_H__ 29 #ifndef __AudioFilePlayer_H__
30 #define __AudioFilePlayer_H__ 30 #define __AudioFilePlayer_H__
31 31
32 #include <CoreServices/CoreServices.h> 32 #include <CoreServices/CoreServices.h>
33 33
34 #include <AudioToolbox/AudioConverter.h>
35 #include <AudioUnit/AudioUnit.h> 34 #include <AudioUnit/AudioUnit.h>
36 35
37 #include "SDL_error.h" 36 #include "SDL_error.h"
38 37
39 const char* AudioFilePlayerErrorStr (OSStatus error); 38 const char* AudioFilePlayerErrorStr (OSStatus error);
63 public: 62 public:
64 AudioFilePlayer (const FSRef *inFileRef); 63 AudioFilePlayer (const FSRef *inFileRef);
65 64
66 ~AudioFilePlayer(); 65 ~AudioFilePlayer();
67 66
68 void SetDestination (AudioUnit &inDestUnit, 67 void SetDestination (AudioUnit &inDestUnit);
69 int inBusNumber);
70 68
71 void SetNotifier (AudioFilePlayNotifier inNotifier, void *inRefCon) 69 void SetNotifier (AudioFilePlayNotifier inNotifier, void *inRefCon)
72 { 70 {
73 mNotifier = inNotifier; 71 mNotifier = inNotifier;
74 mRefCon = inRefCon; 72 mRefCon = inRefCon;
86 84
87 void DoNotification (OSStatus inError) const; 85 void DoNotification (OSStatus inError) const;
88 86
89 bool IsConnected () const { return mConnected; } 87 bool IsConnected () const { return mConnected; }
90 88
91 UInt32 GetBusNumber () const { return mBusNumber; }
92
93 AudioUnit GetDestUnit () const { return mPlayUnit; } 89 AudioUnit GetDestUnit () const { return mPlayUnit; }
94 90
95 AudioConverterRef GetAudioConverter() const { return mConverter; }
96
97 #if DEBUG 91 #if DEBUG
98 void Print() const 92 void Print() const
99 { 93 {
100 printf ("Destination Bus:%ld\n", GetBusNumber());
101 printf ("Is Connected:%s\n", (IsConnected() ? "true" : "false")); 94 printf ("Is Connected:%s\n", (IsConnected() ? "true" : "false"));
102 printf ("- - - - - - - - - - - - - - \n"); 95 printf ("- - - - - - - - - - - - - - \n");
103 } 96 }
104 #endif 97 #endif
105
106 const AudioStreamBasicDescription& GetFileFormat() const { return mFileDescription; }
107 98
108 private: 99 private:
109 AudioUnit mPlayUnit; 100 AudioUnit mPlayUnit;
110 UInt32 mBusNumber;
111 SInt16 mForkRefNum; 101 SInt16 mForkRefNum;
112 102
113 AudioUnitInputCallback mInputCallback; 103 AudioUnitInputCallback mInputCallback;
114 104
115 AudioStreamBasicDescription mFileDescription; 105 AudioStreamBasicDescription mFileDescription;
116 106
117 bool mConnected; 107 bool mConnected;
118 108
119 AudioFileManager* mAudioFileManager; 109 AudioFileManager* mAudioFileManager;
120 AudioConverterRef mConverter;
121 110
122 AudioFilePlayNotifier mNotifier; 111 AudioFilePlayNotifier mNotifier;
123 void* mRefCon; 112 void* mRefCon;
124 113
125 int mStartFrame; 114 int mStartFrame;
139 UInt32 inChunkSize); 128 UInt32 inChunkSize);
140 129
141 ~AudioFileManager(); 130 ~AudioFileManager();
142 131
143 132
144 void Connect (AudioConverterRef inConverter)
145 {
146 mParentConverter = inConverter;
147 DoConnect();
148 }
149
150 // this method should NOT be called by an object of this class 133 // this method should NOT be called by an object of this class
151 // as it is called by the parent's Disconnect() method 134 // as it is called by the parent's Disconnect() method
152 void Disconnect (); 135 void Disconnect ();
136
137 void DoConnect ();
153 138
154 OSStatus Read(char *buffer, UInt32 *len); 139 OSStatus Read(char *buffer, UInt32 *len);
155 140
156 const char* GetFileBuffer () { return mFileBuffer; } 141 const char* GetFileBuffer () { return mFileBuffer; }
157 142
163 148
164 void SetEndOfFile (SInt64 pos); // set the "EOF" (will behave just like it reached eof) 149 void SetEndOfFile (SInt64 pos); // set the "EOF" (will behave just like it reached eof)
165 150
166 protected: 151 protected:
167 AudioFilePlayer& mParent; 152 AudioFilePlayer& mParent;
168 AudioConverterRef mParentConverter;
169 SInt16 mForkRefNum; 153 SInt16 mForkRefNum;
170 SInt64 mAudioDataOffset; 154 SInt64 mAudioDataOffset;
171 155
172 char* mFileBuffer; 156 char* mFileBuffer;
173 157
177 bool mLockUnsuccessful; 161 bool mLockUnsuccessful;
178 bool mIsEngaged; 162 bool mIsEngaged;
179 163
180 int mNumTimesAskedSinceFinished; 164 int mNumTimesAskedSinceFinished;
181 165
166
167 void* mTmpBuffer;
168 UInt32 mBufferSize;
169 UInt32 mBufferOffset;
182 public: 170 public:
183 const UInt32 mChunkSize; 171 const UInt32 mChunkSize;
184 SInt64 mFileLength; 172 SInt64 mFileLength;
185 SInt64 mReadFilePosition; 173 SInt64 mReadFilePosition;
186 bool mWriteToFirstBuffer; 174 bool mWriteToFirstBuffer;
188 176
189 protected: 177 protected:
190 OSStatus Render (AudioBuffer &ioData); 178 OSStatus Render (AudioBuffer &ioData);
191 179
192 OSStatus GetFileData (void** inOutData, UInt32 *inOutDataSize); 180 OSStatus GetFileData (void** inOutData, UInt32 *inOutDataSize);
193
194 void DoConnect ();
195 181
196 void AfterRender (); 182 void AfterRender ();
197 183
198 public: 184 public:
199 static OSStatus FileInputProc (void *inRefCon, 185 static OSStatus FileInputProc (void *inRefCon,
200 AudioUnitRenderActionFlags inActionFlags, 186 AudioUnitRenderActionFlags inActionFlags,
201 const AudioTimeStamp *inTimeStamp, 187 const AudioTimeStamp *inTimeStamp,
202 UInt32 inBusNumber, 188 UInt32 inBusNumber,
203 AudioBuffer *ioData); 189 AudioBuffer *ioData);
204 static OSStatus ACInputProc (AudioConverterRef inAudioConverter,
205 UInt32* outDataSize,
206 void** outData,
207 void* inUserData);
208 }; 190 };
209 191
210 192
211 #endif 193 #endif