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/* Copyright (C) 2013 Mamadou DIOP
* Copyright (C) 2013 Doubango Telecom <http://www.doubango.org>
*
* This file is part of Open Source Doubango Framework.
*
* DOUBANGO 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 3 of the License, or
* (at your option) any later version.
*
* DOUBANGO 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 DOUBANGO.
*/
#ifndef PLUGIN_WIN_MF_SAMPLE_QUEUE_H
#define PLUGIN_WIN_MF_SAMPLE_QUEUE_H
#include "../plugin_win_mf_config.h"
#include <new>
#include <mfapi.h>
#include <mfidl.h>
#include <Mferror.h>
#include <shlwapi.h>
class MFSampleQueue : public IUnknown
{
protected:
// Nodes in the linked list
struct Node
{
Node *prev;
Node *next;
IMFSample* item;
Node() : prev(NULL), next(NULL)
{
}
Node(IMFSample* item) : prev(NULL), next(NULL)
{
this->item = item;
}
IMFSample* Item() const { return item; }
};
protected:
Node m_anchor;
long m_nCount;
CRITICAL_SECTION m_critSec;
private:
long m_nRefCount;
public:
MFSampleQueue();
virtual ~MFSampleQueue();
// IUnknown
STDMETHODIMP QueryInterface(REFIID iid, void** ppv);
STDMETHODIMP_(ULONG) AddRef();
STDMETHODIMP_(ULONG) Release();
HRESULT Queue(IMFSample* item);
HRESULT Dequeue(IMFSample* *ppItem);
HRESULT Clear();
inline BOOL IsEmpty() const { return m_anchor.next == &m_anchor; }
inline long Count() { return m_nCount; }
};
#endif /* PLUGIN_WIN_MF_SAMPLE_QUEUE_H */
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