00001 /* 00002 Copyright (c) 2009, The Barbarian Group 00003 All rights reserved. 00004 00005 Redistribution and use in source and binary forms, with or without modification, are permitted provided that 00006 the following conditions are met: 00007 00008 * Redistributions of source code must retain the above copyright notice, this list of conditions and 00009 the following disclaimer. 00010 * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 00011 the following disclaimer in the documentation and/or other materials provided with the distribution. 00012 00013 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED 00014 WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 00015 PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR 00016 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 00017 TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00018 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00019 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00020 POSSIBILITY OF SUCH DAMAGE. 00021 */ 00022 00023 #pragma once 00024 00025 #include "cinder/Cinder.h" 00026 #include "cinder/audio/Io.h" 00027 #include "cinder/audio/Buffer.h" 00028 #include "cinder/audio/CocoaCaConverter.h" 00029 00030 #include <AudioToolbox/AudioFile.h> 00031 00032 00033 namespace cinder { namespace audio { 00034 00035 typedef shared_ptr<class SourceFile> SourceFileRef; 00036 typedef shared_ptr<class LoaderSourceFile> LoaderSourceFileRef; 00037 00038 class LoaderSourceFile : public Loader { 00039 public: 00040 static LoaderSourceFileRef createRef( SourceFile *source, Target *target ); 00041 00042 ~LoaderSourceFile() {} 00043 00044 uint64_t getSampleOffset() const; 00045 void setSampleOffset( uint64_t anOffset ); 00046 void loadData( uint32_t *ioSampleCount, BufferList *ioData ); 00047 private: 00048 static void dataInputCallback( Loader* aLoader, uint32_t *ioSampleCount, BufferList *ioData, AudioStreamPacketDescription * packetDescriptions ); 00049 00050 LoaderSourceFile( SourceFile *source, Target *target ); 00051 00052 SourceFile * mSource; 00053 shared_ptr<CocoaCaConverter> mConverter; 00054 uint64_t mPacketOffset; 00055 00056 }; 00057 00058 class SourceFile : public Source { 00059 public: 00060 static SourceRef createRef( DataSourceRef dataSourceRef ) { return createFileRef( dataSourceRef ); } 00061 static SourceFileRef createFileRef( DataSourceRef dataSourceRef ); 00062 ~SourceFile(); 00063 00064 virtual LoaderRef getLoader( Target *target ) { return LoaderSourceFile::createRef( this, target ); } 00065 00066 double getDuration() const { return mDuration; }; 00067 00068 static void registerSelf(); 00069 protected: 00070 SourceFile( DataSourceRef dataSourceRef ); 00071 00072 uint64_t packetAtTime( double aTime ) const; 00073 double timeAtPacket( uint64_t aPacket ) const; 00074 00075 uint64_t packetAtSample( uint64_t aSample ) const; 00076 uint64_t sampleAtPacket( uint64_t aPacket ) const; 00077 00078 shared_ptr<OpaqueAudioFileID> mFileRef; 00079 00080 uint64_t mPacketCount; 00081 uint64_t mByteCount; 00082 double mDuration; 00083 uint32_t mMaxPacketSize; 00084 00085 friend class LoaderSourceFile; 00086 }; 00087 00088 REGISTER_AUDIOIO( SourceFile ) 00089 00090 }} // namespace 00091