AbstractTransformOutputPin.h

Go to the documentation of this file.
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 #pragma once
00033 
00034 //Local Includes
00035 #include "directshowabstractsdllstuff.h"
00036 #include "BasicSeekPassThrough.h"
00037 
00038 //STL Includes
00039 #include <vector>
00040 using namespace std;
00041 
00042 //Forward Declarations
00043 class AbstractTransformFilter;
00044 
00045 class AbstractTransformOutputPin 
00046         //Base Classes
00047         :       public CBaseOutputPin
00048                         //http://msdn.microsoft.com/library/default.asp?url=/library/en-us/directshow/htm/cbaseoutputpinclass.asp
00049         ,       public BasicSeekPassThrough
00050 {
00051 public:
00052         //COM Initialisation
00053         DECLARE_IUNKNOWN
00054         STDMETHODIMP NonDelegatingQueryInterface(REFIID riid, void **ppv);
00055 
00056         //Constructors
00057         AbstractTransformOutputPin(AbstractTransformFilter* inParentFilter, CCritSec* inFilterLock, CHAR* inObjectName, LPCWSTR inPinDisplayName, int inBuffSize, int inNumBuffs, vector<CMediaType*> inAcceptableMediaTypes);
00058         virtual ~AbstractTransformOutputPin(void);
00059 
00060         //Buffer control method
00061         virtual HRESULT DecideBufferSize(IMemAllocator* inAllocator, ALLOCATOR_PROPERTIES *inReqAllocProps);
00062 
00063         //Media Type control methods.
00064         virtual HRESULT CheckMediaType(const CMediaType *inMediaType);
00065         virtual HRESULT GetMediaType(int inPosition, CMediaType *outMediaType);
00066 
00067         //Pure virtuals for codec specific format data
00068         virtual HRESULT CreateAndFillFormatBuffer(CMediaType* outMediaType, int inPosition) = 0;
00069 
00070         //Virtuals for data queue delegation
00071         virtual HRESULT BreakConnect(void);
00072         virtual HRESULT CompleteConnect (IPin *inReceivePin);
00073         virtual HRESULT DeliverNewSegment(REFERENCE_TIME inStartTime, REFERENCE_TIME inStopTime, double inRate);
00074         virtual HRESULT DeliverEndOfStream(void);
00075         virtual HRESULT DeliverEndFlush(void);
00076         virtual HRESULT DeliverBeginFlush(void);
00077         
00078 protected:
00079         //Helper methods
00080         void FillMediaType(CMediaType* outMediaType, int inPosition);
00081 
00082         //Pin member data
00083         AbstractTransformFilter* mParentFilter;
00084         COutputQueue* mDataQueue;
00085         vector<CMediaType*> mAcceptableMediaTypes;
00086         
00087         HRESULT mHR;            //Is this even used ??
00088 
00089         //Buffer parameter member data
00090         int mDesiredBufferSize;
00091         int mDesiredBufferCount;
00092         int mActualBufferSize;
00093         int mActualBufferCount;
00094 
00095         
00096 };
00097 
00098 

Generated on Tue Feb 15 14:54:20 2005 for oggdsf by  doxygen 1.3.9