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 00032 00033 #pragma once 00034 00035 //Local Includes 00036 #include "abstractaudiodllstuff.h" 00037 #include "BasicSeekable.h" 00038 00039 //Forward Declarations 00040 class AbstractAudioDecodeInputPin; 00041 class AbstractAudioDecodeOutputPin; 00042 00043 00044 class ABS_AUDIO_DEC_API AbstractAudioDecodeFilter 00045 //Parent Classes 00046 : public CBaseFilter 00047 //http://msdn.microsoft.com/library/default.asp?url=/library/en-us/directshow/htm/cbasefilterclass.asp 00048 { 00049 public: 00050 //Friend Classes 00051 friend class AbstractAudioDecodeInputPin; 00052 friend class AbstractAudioDecodeOutputPin; 00053 00054 //COM Setup 00055 DECLARE_IUNKNOWN 00056 STDMETHODIMP NonDelegatingQueryInterface(REFIID riid, void **ppv); 00057 00058 //Constants and Enumerations 00059 static const long NUM_PINS = 2; 00060 enum eAudioFormat { 00061 NONE = 0, 00062 VORBIS = 1, 00063 SPEEX = 2, 00064 FLAC = 3, 00065 OTHER = 1000 00066 }; 00067 00068 //Constructors 00069 AbstractAudioDecodeFilter(TCHAR* inFilterName, REFCLSID inFilterGUID, unsigned short inAudioFormat ); 00070 virtual ~AbstractAudioDecodeFilter(void); 00071 00072 //Pin Methods 00073 CBasePin* GetPin(int n); 00074 int GetPinCount(void); 00075 00076 virtual bool ConstructPins() = 0; 00077 virtual void DestroyPins(); 00078 00079 00080 //Media Control Methods 00081 virtual STDMETHODIMP Stop(); 00082 00083 00084 00085 unsigned short mAudioFormat; //TODO::: Make this private at some point 00086 00087 //static CUnknown* WINAPI CreateInstance(LPUNKNOWN pUnk, HRESULT *pHr); 00088 protected: 00089 //Member Data 00090 AbstractAudioDecodeInputPin* mInputPin; 00091 AbstractAudioDecodeOutputPin* mOutputPin; 00092 }; 00093 00094