OggDemuxPacketSourcePin.h

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//===========================================================================
//Copyright (C) 2003, 2004, 2005 Zentaro Kavanagh
//
//Redistribution and use in source and binary forms, with or without
//modification, are permitted provided that the following conditions
//are met:
//
//- Redistributions of source code must retain the above copyright
//  notice, this list of conditions and the following disclaimer.
//
//- Redistributions in binary form must reproduce the above copyright
//  notice, this list of conditions and the following disclaimer in the
//  documentation and/or other materials provided with the distribution.
//
//- Neither the name of Zentaro Kavanagh nor the names of contributors 
//  may be used to endorse or promote products derived from this software 
//  without specific prior written permission.
//
//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
//``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
//LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
//PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE ORGANISATION OR
//CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
//EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
//PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
//PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
//LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
//NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
//SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//===========================================================================
#pragma once

#include <libOOOgg/OggPacket.h>
#include <libOOOgg/IOggCallback.h>
#include <libOOOgg/OggPacketiser.h>
#include "IOggDecoder.h"
#include "IOggOutputPin.h"

class OggDemuxPacketSourcePin
        :       public CBaseOutputPin
        ,       public BasicSeekPassThrough
        ,       public IOggCallback
        ,       public IOggOutputPin
        ,       protected IStampedOggPacketSink
{
public:

        DECLARE_IUNKNOWN
        STDMETHODIMP NonDelegatingQueryInterface(REFIID riid, void **ppv);
        //OggDemuxPacketSourcePin(void);
        OggDemuxPacketSourcePin(        TCHAR* inObjectName, 
                                                        OggDemuxPacketSourceFilter* inParentFilter,
                                                        CCritSec* inFilterLock,
                                                        OggPacket* inIdentHeader,
                                                        unsigned long inSerialNo);
                                                        //StreamHeaders* inHeaderSource, 
                                                        //CMediaType* inMediaType,
                                                        //wstring inPinName,
                                                        //bool inAllowSeek,
                                                        //unsigned long inNumBuffers,
                                                        //unsigned long inBufferSize);
        virtual ~OggDemuxPacketSourcePin(void);

        static const unsigned long NUM_PAGE_BUFFERS = 100;

        unsigned long getSerialNo();
        IOggDecoder* getDecoderInterface();
        bool isStreamReady()                                                    {               return mIsStreamReady;                          }
        void setIsStreamReady(bool inIsStreamReady)             {               mIsStreamReady = inIsStreamReady;       }

        //IOggCallback Interface
        virtual bool acceptOggPage(OggPage* inOggPage);


        //CBasePin virtuals
        virtual HRESULT GetMediaType(int inPosition, CMediaType* outMediaType);
        virtual HRESULT CheckMediaType(const CMediaType* inMediaType);
        virtual HRESULT DecideBufferSize(IMemAllocator* inoutAllocator, ALLOCATOR_PROPERTIES* inoutInputRequest);

        //Pin Conenction Methods
        virtual HRESULT BreakConnect();
        virtual HRESULT CompleteConnect(IPin *inReceivePin);

        //Pin streaming methods
        virtual HRESULT DeliverNewSegment(REFERENCE_TIME inStart, REFERENCE_TIME inStop, double inRate);
        virtual HRESULT DeliverEndOfStream(void);
        virtual HRESULT DeliverEndFlush(void);
        virtual HRESULT DeliverBeginFlush(void);

        //IOggOutputPin interface
        virtual bool notifyStreamBaseTime(__int64 inStreamTime);
        virtual __int64 getGlobalBaseTime();
protected:
        //IStampedOggPacketSink
        virtual bool acceptStampedOggPacket(StampedOggPacket* inPacket);
        virtual bool dispatchPacket(StampedOggPacket* inPacket);

        //What is this actually for ?
        HRESULT mFilterHR;

        BYTE* getIdentAsFormatBlock();
        unsigned long getIdentSize();
        unsigned long mSerialNo;

        CCritSec* mPacketiserLock;

        unsigned long mNumBuffers;
        
        OggPacket* mIdentHeader;
        IOggDecoder* mDecoderInterface;
        OggPacketiser mPacketiser;

        COutputQueue* mDataQueue;

        bool mIsStreamReady;
        bool mAcceptingData;
};

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