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# include/cinder/audio/SourceFileWindowsMedia.h

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    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/Buffer.h"
    00028
    00029 #include <Wmsdk.h>
    00030 #include <windows.h>
    00031
    00032
    00033 namespace cinder { namespace audio {
    00034
    00035 typedef shared_ptr<class SourceFileWindowsMedia>    SourceFileWindowsMediaRef;
    00036 typedef shared_ptr<class LoaderSourceFileWindowsMedia>  LoaderSourceFileWindowsMediaRef;
    00037
    00038 class LoaderSourceFileWindowsMedia : public Loader {
    00039   public:
    00040     static LoaderSourceFileWindowsMediaRef  createRef( SourceFileWindowsMedia *source, Target *target );
    00041     ~LoaderSourceFileWindowsMedia();
    00042
    00043     uint32_t getOptimalBufferSize() const { return mMaxBufferSize; }
    00044     void loadData( uint32_t *ioSampleCount, BufferList *ioData );
    00045
    00046     uint64_t getSampleOffset() const;
    00047     void setSampleOffset( uint64_t anOffset );
    00048
    00049   protected:
    00050     LoaderSourceFileWindowsMedia( SourceFileWindowsMedia * source, Target * target );
    00051
    00052     uint64_t timeAtSample( uint64_t aSample ) const;
    00053     uint64_t sampleAtTime( uint64_t aTime ) const;
    00054
    00055     SourceFileWindowsMedia          * mSource;
    00056     WAVEFORMATEX                    mOutputFormat;
    00057
    00058     uint32_t                        mStreamSize;
    00059     IWMSyncReader                   * mReader;
    00060     IWMHeaderInfo                   * mHeaderInfo;
    00061
    00062     uint32_t                        mMaxBufferSize;
    00063     uint64_t                        mSampleOffset;
    00064     uint32_t                        mSrcBlockAlign;
    00065     uint32_t                        mSrcSampleRate;
    00066     uint16_t                        mSrcChannelCount;
    00067     uint32_t                        mSrcBitsPerSample;
    00068 };
    00069
    00070
    00071 class SourceFileWindowsMedia : public Source {
    00072   public:
    00073     static SourceRef                    createRef( DataSourceRef dataSourceRef ) { return createFileRef( dataSourceRef ); }
    00074     static SourceFileWindowsMediaRef    createFileRef( DataSourceRef dataSourceRef );
    00075     ~SourceFileWindowsMedia();
    00076
    00077     virtual LoaderRef getLoader( Target *target ) { return LoaderSourceFileWindowsMedia::createRef( this, target ); }
    00078
    00079     uint32_t getLength() const { return mBuffer.getDataSize(); };
    00080     double getDuration() const { /*TODO*/ return 0.0;  }
    00081
    00082     static void     registerSelf();
    00083   protected:
    00084     SourceFileWindowsMedia( DataSourceRef dataSourceRef );
    00085
    00086     cinder::Buffer mBuffer;
    00087
    00088     friend LoaderSourceFileWindowsMedia;
    00089 };
    00090
    00091 REGISTER_AUDIOIO( SourceFileWindowsMedia )
    00092
    00093 }} //namespace