Jason Felds
73 lines
2.3 KiB
C++
73 lines
2.3 KiB
C++
#include "global.h"
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#include "RageSoundReader_Pan.h"
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#include "RageSoundUtil.h"
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RageSoundReader_Pan::RageSoundReader_Pan( RageSoundReader *pSource ):
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RageSoundReader_Filter( pSource )
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{
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m_fPan = 0;
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}
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int RageSoundReader_Pan::Read( float *pBuf, int iFrames )
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{
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iFrames = m_pSource->Read( pBuf, iFrames );
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if( iFrames < 0 )
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return iFrames;
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int iSamples = iFrames * m_pSource->GetNumChannels();
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if( m_pSource->GetNumChannels() == 1 )
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{
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RageSoundUtil::ConvertMonoToStereoInPlace( pBuf, iSamples );
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iSamples *= 2;
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}
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/* This block goes from iStreamFrame to iStreamFrame+iGotFrames. */
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if( GetNumChannels() == 2 && m_fPan != 0.0 )
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RageSoundUtil::Pan( pBuf, iFrames, m_fPan );
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return iFrames;
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}
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unsigned RageSoundReader_Pan::GetNumChannels() const
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{
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return max( 2u, RageSoundReader_Filter::GetNumChannels() );
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}
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bool RageSoundReader_Pan::SetProperty( const RString &sProperty, float fValue )
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{
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if( sProperty == "Pan" )
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{
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m_fPan = fValue;
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return true;
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}
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return RageSoundReader_Filter::SetProperty( sProperty, fValue );
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}
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/*
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* Copyright (c) 2006 Glenn Maynard
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, and/or sell copies of the Software, and to permit persons to
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* whom the Software is furnished to do so, provided that the above
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* copyright notice(s) and this permission notice appear in all copies of
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* the Software and that both the above copyright notice(s) and this
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* permission notice appear in supporting documentation.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
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* THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
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* INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
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* OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
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* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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