hxrsmp2.h
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- /* ***** BEGIN LICENSE BLOCK *****
- * Source last modified: $Id: hxrsmp2.h,v 1.1.1.1.50.1 2004/07/09 02:01:13 hubbe Exp $
- *
- * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file,
- * are subject to the current version of the RealNetworks Public
- * Source License (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the current version of the RealNetworks Community
- * Source License (the "RCSL") available at
- * http://www.helixcommunity.org/content/rcsl, in which case the RCSL
- * will apply. You may also obtain the license terms directly from
- * RealNetworks. You may not use this file except in compliance with
- * the RPSL or, if you have a valid RCSL with RealNetworks applicable
- * to this file, the RCSL. Please see the applicable RPSL or RCSL for
- * the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL") in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your version of
- * this file only under the terms of the GPL, and not to allow others
- * to use your version of this file under the terms of either the RPSL
- * or RCSL, indicate your decision by deleting the provisions above
- * and replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient may
- * use your version of this file under the terms of any one of the
- * RPSL, the RCSL or the GPL.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the
- * portions it created.
- *
- * This file, and the files included with this file, is distributed
- * and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
- * KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
- * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET
- * ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #ifndef _HXRSMP2_H_
- #define _HXRSMP2_H_
- #include "growingq.h"
- #include "hxcomm.h"
- #include "RAResampler.h"
- typedef enum _AudioChannelConversion
- {
- AUDIO_CHANNEL_NONE,
- AUDIO_CHANNEL_UP,
- AUDIO_CHANNEL_DOWN
- } AudioChannelConversion;
- typedef enum _AudioSampleConversion
- {
- AUDIO_SAMPLE_NONE,
- AUDIO_SAMPLE_NEEDED
- } AudioSampleConversion;
- class HXCDQualityResampler : public IHXAudioResampler
- {
- protected:
- LONG32 m_lRefCount;
- RAExactResampler* m_pResampler;
- AudioChannelConversion m_audioChannelConversion;
- AudioSampleConversion m_audioSampleConversion;
- HXAudioFormat m_inAudioFormat;
- HXAudioFormat m_outAudioFormat;
- UINT32 m_ulSamplesSaved;
- UINT32 m_ulSamplesFixed;
- UINT32 m_ulBytesFixed;
- short* m_pBPS8To16Out;
- void Downmix16(INT16* pIn, UINT32 nSamplesIn);
- void BPS8To16(INT16* pIn, UINT32 ulBytesIn, INT16* pOut, UINT32& ulBytesOut);
- void Close(void);
- void CopyAudioFormat(HXAudioFormat from, REF(HXAudioFormat) to);
- public:
- HXCDQualityResampler();
- ~HXCDQualityResampler();
- /*
- * IUnknown methods
- */
- STDMETHOD(QueryInterface) (THIS_
- REFIID riid,
- void** ppvObj);
- STDMETHOD_(ULONG32,AddRef) (THIS);
- STDMETHOD_(ULONG32,Release) (THIS);
- /*
- * IHXResampler methods
- */
- /*
- * IHXResampler methods
- */
- /**********************************************************************
- * Method:
- * IHXAudioResampler::Resample
- * Purpose:
- * Will produce 1 output frame for every (upFactor/downFactor) inputs
- * frames, straddling if not an integer. Works down to 1 sample/call.
- *
- * Returns actual number of output frames.
- ***********************************************************************/
- STDMETHOD_(UINT32, Resample) ( THIS_
- UINT16* pInput,
- UINT32 ulInputBytes,
- UINT16* pOutput);
- /**********************************************************************
- * Method:
- * IHXAudioResampler::Requires
- * Purpose:
- * Returns number of input frames required to produce this number
- * of output frames, given the current state of the filter.
- */
- STDMETHOD_(UINT32, Requires) ( THIS_
- UINT32 ulOutputFrames);
- HX_RESULT Init(HXAudioFormat inAudioFormat,
- REF(HXAudioFormat) outAudioFormat);
- };
- #endif //_HXRSMP2_H_