00001 //=========================================================================== 00002 //Copyright (C) 2003, 2004 Zentaro Kavanagh 00003 // 00004 //Redistribution and use in source and binary forms, with or without 00005 //modification, are permitted provided that the following conditions 00006 //are met: 00007 // 00008 //- Redistributions of source code must retain the above copyright 00009 // notice, this list of conditions and the following disclaimer. 00010 // 00011 //- Redistributions in binary form must reproduce the above copyright 00012 // notice, this list of conditions and the following disclaimer in the 00013 // documentation and/or other materials provided with the distribution. 00014 // 00015 //- Neither the name of Zentaro Kavanagh nor the names of contributors 00016 // may be used to endorse or promote products derived from this software 00017 // without specific prior written permission. 00018 // 00019 //THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 00020 //``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00021 //LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 00022 //PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE ORGANISATION OR 00023 //CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00024 //EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 00025 //PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00026 //PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00027 //LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00028 //NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00029 //SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00030 //=========================================================================== 00031 #include "stdafx.h" 00032 #include "abstractaudioencodefilter.h" 00033 00034 00035 00036 AbstractAudioEncodeFilter::AbstractAudioEncodeFilter(TCHAR* inFilterName, REFCLSID inFilterGUID, unsigned short inAudioFormat ) 00037 : CBaseFilter(inFilterName, NULL,m_pLock, inFilterGUID), 00038 mAudioFormat(inAudioFormat) 00039 { 00040 00041 m_pLock = new CCritSec; 00042 00043 } 00044 00045 AbstractAudioEncodeFilter::~AbstractAudioEncodeFilter(void) 00046 { 00047 delete m_pLock; 00048 DestroyPins(); 00049 } 00050 00051 void AbstractAudioEncodeFilter::DestroyPins() { 00052 delete mOutputPin; 00053 delete mInputPin; 00054 } 00055 00056 STDMETHODIMP AbstractAudioEncodeFilter::NonDelegatingQueryInterface(REFIID riid, void **ppv) { 00057 return CBaseFilter::NonDelegatingQueryInterface(riid, ppv); 00058 } 00059 00060 CBasePin* AbstractAudioEncodeFilter::GetPin(int inPinNo) { 00061 //FIX::: Errors here 00062 if (inPinNo < 0 ) { 00063 return NULL; 00064 } else if (inPinNo == 0) { 00065 return mInputPin; 00066 } else if (inPinNo == 1) { 00067 return mOutputPin; 00068 } else { 00069 return NULL; 00070 } 00071 } 00072 00073 STDMETHODIMP AbstractAudioEncodeFilter::Stop() { 00074 CAutoLock locLock(m_pLock); 00075 mInputPin->ResetFrameCount(); 00076 return CBaseFilter::Stop(); 00077 } 00078 int AbstractAudioEncodeFilter::GetPinCount(void) { 00079 const long NUM_PINS = 2; 00080 return NUM_PINS; 00081 } 00082