StreamDriveThru.h

/* 
 *      Copyright (C) 2003-2005 Gabest
 *      http://www.gabest.org
 *
 *  This Program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *   
 *  This Program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  GNU General Public License for more details.
 *   
 *  You should have received a copy of the GNU General Public License
 *  along with GNU Make; see the file COPYING.  If not, write to
 *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. 
 *  http://www.gnu.org/copyleft/gpl.html
 *
 */

#pragma once

#include <atlbase.h>
#include "..\..\..\DSUtil\DSUtil.h"


class CStreamDriveThruInputPin : public CBasePin
{
        CComQIPtr<IAsyncReader> m_pAsyncReader;

public:
        CStreamDriveThruInputPin(TCHAR* pName, CBaseFilter* pFilter, CCritSec* pLock, HRESULT* phr);
        virtual ~CStreamDriveThruInputPin();

        HRESULT GetAsyncReader(IAsyncReader** ppAsyncReader);

        DECLARE_IUNKNOWN;
    STDMETHODIMP NonDelegatingQueryInterface(REFIID riid, void** ppv);

    HRESULT CheckMediaType(const CMediaType* pmt);

    HRESULT CheckConnect(IPin* pPin);
    HRESULT BreakConnect();
        HRESULT CompleteConnect(IPin* pPin);

        STDMETHODIMP BeginFlush();
        STDMETHODIMP EndFlush();
};

class CStreamDriveThruOutputPin : public CBaseOutputPin
{
        CComQIPtr<IStream> m_pStream;

public:
        CStreamDriveThruOutputPin(TCHAR* pName, CBaseFilter* pFilter, CCritSec* pLock, HRESULT* phr);
        virtual ~CStreamDriveThruOutputPin();

        HRESULT GetStream(IStream** ppStream);

        DECLARE_IUNKNOWN;
    STDMETHODIMP NonDelegatingQueryInterface(REFIID riid, void** ppv);

    HRESULT DecideBufferSize(IMemAllocator* pAlloc, ALLOCATOR_PROPERTIES* pProperties);

    HRESULT CheckMediaType(const CMediaType* pmt);
    HRESULT GetMediaType(int iPosition, CMediaType* pmt);

    HRESULT CheckConnect(IPin* pPin);
    HRESULT BreakConnect();
    HRESULT CompleteConnect(IPin* pPin);

        STDMETHODIMP BeginFlush();
        STDMETHODIMP EndFlush();

        STDMETHODIMP Notify(IBaseFilter* pSender, Quality q);
};

[uuid("534FE6FD-F1F0-4aec-9F45-FF397320CE33")]
class CStreamDriveThruFilter : public CBaseFilter, protected CAMThread, public IMediaSeeking
{
        CCritSec m_csLock;

        CStreamDriveThruInputPin* m_pInput;
        CStreamDriveThruOutputPin* m_pOutput;

protected:
        enum {CMD_EXIT, CMD_STOP, CMD_PAUSE, CMD_RUN};
    DWORD ThreadProc();

        LONGLONG m_position;

public:
        CStreamDriveThruFilter(LPUNKNOWN pUnk, HRESULT* phr);
        virtual ~CStreamDriveThruFilter();

        DECLARE_IUNKNOWN;
    STDMETHODIMP NonDelegatingQueryInterface(REFIID riid, void** ppv);

        int GetPinCount();
        CBasePin* GetPin(int n);

        STDMETHODIMP Stop();
        STDMETHODIMP Pause();
        STDMETHODIMP Run(REFERENCE_TIME tStart);

        // IMediaSeeking

        STDMETHODIMP GetCapabilities(DWORD* pCapabilities);
        STDMETHODIMP CheckCapabilities(DWORD* pCapabilities);
        STDMETHODIMP IsFormatSupported(const GUID* pFormat);
        STDMETHODIMP QueryPreferredFormat(GUID* pFormat);
        STDMETHODIMP GetTimeFormat(GUID* pFormat);
        STDMETHODIMP IsUsingTimeFormat(const GUID* pFormat);
        STDMETHODIMP SetTimeFormat(const GUID* pFormat);
        STDMETHODIMP GetDuration(LONGLONG* pDuration);
        STDMETHODIMP GetStopPosition(LONGLONG* pStop);
        STDMETHODIMP GetCurrentPosition(LONGLONG* pCurrent);
        STDMETHODIMP ConvertTimeFormat(LONGLONG* pTarget, const GUID* pTargetFormat, LONGLONG Source, const GUID* pSourceFormat);
        STDMETHODIMP SetPositions(LONGLONG* pCurrent, DWORD dwCurrentFlags, LONGLONG* pStop, DWORD dwStopFlags);
        STDMETHODIMP GetPositions(LONGLONG* pCurrent, LONGLONG* pStop);
        STDMETHODIMP GetAvailable(LONGLONG* pEarliest, LONGLONG* pLatest);
        STDMETHODIMP SetRate(double dRate);
        STDMETHODIMP GetRate(double* pdRate);
        STDMETHODIMP GetPreroll(LONGLONG* pllPreroll);
};

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