RAFixPtResampler.cpp
上传用户:zhongxx05
上传日期:2007-06-06
资源大小:33641k
文件大小:3k
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 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
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (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.
- *
- * 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 ***** */
- #include "RAResampler.h"
- // Create a resampler with a given quality level.
- HX_RESULT
- RAExactResampler::Create(RAExactResampler** pRes, int inrate, int outrate,
- int chans, int intype, Quality quality)
- {
- *pRes = NULL;
- HX_ASSERT(intype == _INT16);
- if (intype == _INT16)
- {
- if ((*pRes = new RAExactResampler()) != NULL)
- {
- (*pRes)->m_pInst = InitResampler(inrate, outrate, chans, (int)quality);
- }
- }
- return ((*pRes && (*pRes)->m_pInst) ? HXR_OK : HXR_FAIL);
- }
- RAExactResampler::RAExactResampler()
- : m_pInst(NULL)
- {}
- RAExactResampler::~RAExactResampler()
- {
- if (m_pInst)
- FreeResampler(m_pInst);
- }
- int
- RAExactResampler::GetMaxOutput(int insamps)
- {
- HX_ASSERT(m_pInst);
- return ::GetMaxOutput(insamps, m_pInst);
- }
- int
- RAExactResampler::GetMinInput(int outsamps)
- {
- HX_ASSERT(m_pInst);
- return ::GetMinInput(outsamps, m_pInst);
- }
- int
- RAExactResampler::GetDelay()
- {
- HX_ASSERT(m_pInst);
- return ::GetDelay(m_pInst);
- }