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/*
* Copyright (C) 2003-2006 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>
interface __declspec(uuid("63EF0035-3FFE-4c41-9230-4346E028BE20"))
IBufferFilter : public IUnknown
{
STDMETHOD(SetBuffers) (int nBuffers) = 0;
STDMETHOD_(int, GetBuffers) () = 0;
STDMETHOD_(int, GetFreeBuffers) () = 0;
STDMETHOD(SetPriority) (DWORD dwPriority = THREAD_PRIORITY_NORMAL) = 0;
};
class __declspec(uuid("DA2B3D77-2F29-4fd2-AC99-DEE4A8A13BF0"))
CBufferFilter : public CTransformFilter, public IBufferFilter
{
int m_nSamplesToBuffer;
public:
CBufferFilter(LPUNKNOWN lpunk, HRESULT* phr);
virtual ~CBufferFilter();
DECLARE_IUNKNOWN
STDMETHODIMP NonDelegatingQueryInterface(REFIID riid, void** ppv);
// IBufferFilter
STDMETHODIMP SetBuffers(int nBuffers);
STDMETHODIMP_(int) GetBuffers();
STDMETHODIMP_(int) GetFreeBuffers();
STDMETHODIMP SetPriority(DWORD dwPriority = THREAD_PRIORITY_NORMAL);
HRESULT Receive(IMediaSample* pSample);
HRESULT Transform(IMediaSample* pIn, IMediaSample* pOut);
HRESULT CheckInputType(const CMediaType* mtIn);
HRESULT CheckTransform(const CMediaType* mtIn, const CMediaType* mtOut);
HRESULT DecideBufferSize(IMemAllocator* pAllocator, ALLOCATOR_PROPERTIES* pProperties);
HRESULT GetMediaType(int iPosition, CMediaType* pMediaType);
HRESULT StopStreaming();
};
class CBufferFilterOutputPin : public CTransformOutputPin
{
class CBufferFilterOutputQueue : public COutputQueue
{
public:
CBufferFilterOutputQueue(IPin* pInputPin, HRESULT* phr,
DWORD dwPriority = THREAD_PRIORITY_NORMAL,
BOOL bAuto = FALSE, BOOL bQueue = TRUE,
LONG lBatchSize = 1, BOOL bBatchExact = FALSE,
LONG lListSize = DEFAULTCACHE,
bool bFlushingOpt = false)
: COutputQueue(pInputPin, phr, bAuto, bQueue, lBatchSize, bBatchExact, lListSize, dwPriority, bFlushingOpt)
{
}
int GetQueueCount()
{
return m_List ? m_List->GetCount() : -1;
}
bool SetPriority(DWORD dwPriority)
{
return m_hThread ? !!::SetThreadPriority(m_hThread, dwPriority) : false;
}
};
public:
CBufferFilterOutputPin(CTransformFilter* pFilter, HRESULT* phr);
CAutoPtr<CBufferFilterOutputQueue> m_pOutputQueue;
HRESULT Active();
HRESULT Inactive();
HRESULT Deliver(IMediaSample* pMediaSample);
HRESULT DeliverEndOfStream();
HRESULT DeliverBeginFlush();
HRESULT DeliverEndFlush();
HRESULT DeliverNewSegment(REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate);
};
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