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/*
* Copyright (C) Microsoft Corporation. All rights reserved.
* 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_CUSTOM_SOURCE_H
#define PLUGIN_WIN_MF_CUSTOM_SOURCE_H
#include "../plugin_win_mf_config.h"
#include <new>
#include <windows.h>
#include <assert.h>
#include <mfapi.h>
#include <mfobjects.h>
#include <mfidl.h>
#include <mferror.h>
#include <shlwapi.h>
class CMFStreamSource;
class CMFSource;
LONGLONG AudioDurationFromBufferSize(const WAVEFORMATEX *pWav, DWORD cbAudioDataSize);
//////////////////////////////////////////////////////////////////////////
// CMFSource
// Description: Media source object.
//////////////////////////////////////////////////////////////////////////
class CMFSource : public IMFMediaSource
{
friend class CMFStreamSource;
public:
static HRESULT CreateInstance(REFIID iid, void **ppSource);
static HRESULT CreateInstanceEx(REFIID iid, void **ppSource, IMFMediaType *pMediaType);
// IMFCustomSource
HRESULT CopyVideoBuffer(UINT32 nWidth, UINT32 nHeight, const void* pBufferPtr, UINT32 nBufferSize);
// IUnknown
STDMETHODIMP QueryInterface(REFIID iid, void** ppv);
STDMETHODIMP_(ULONG) AddRef();
STDMETHODIMP_(ULONG) Release();
// IMFMediaEventGenerator
STDMETHODIMP BeginGetEvent(IMFAsyncCallback* pCallback,IUnknown* punkState);
STDMETHODIMP EndGetEvent(IMFAsyncResult* pResult, IMFMediaEvent** ppEvent);
STDMETHODIMP GetEvent(DWORD dwFlags, IMFMediaEvent** ppEvent);
STDMETHODIMP QueueEvent(MediaEventType met, REFGUID guidExtendedType, HRESULT hrStatus, const PROPVARIANT* pvValue);
// IMFMediaSource
STDMETHODIMP CreatePresentationDescriptor(IMFPresentationDescriptor** ppPresentationDescriptor);
STDMETHODIMP GetCharacteristics(DWORD* pdwCharacteristics);
STDMETHODIMP Pause();
STDMETHODIMP Shutdown();
STDMETHODIMP Start(
IMFPresentationDescriptor* pPresentationDescriptor,
const GUID* pguidTimeFormat,
const PROPVARIANT* pvarStartPosition
);
STDMETHODIMP Stop();
private:
enum State
{
STATE_STOPPED,
STATE_PAUSED,
STATE_STARTED
};
// Constructor is private - client should use static CreateInstance method.
CMFSource(HRESULT &hr, IMFMediaType *pMediaType);
virtual ~CMFSource();
HRESULT CheckShutdown() const
{
if (m_IsShutdown)
{
return MF_E_SHUTDOWN;
}
else
{
return S_OK;
}
}
HRESULT CreatePresentationDescriptor();
HRESULT QueueNewStreamEvent(IMFPresentationDescriptor *pPD);
HRESULT CreateCMFStreamSource(IMFStreamDescriptor *pSD);
HRESULT ValidatePresentationDescriptor(IMFPresentationDescriptor *pPD);
LONGLONG GetCurrentPosition() const;
State GetState() const { return m_state; }
IMFMediaEventQueue *m_pEventQueue; // Event generator helper
IMFPresentationDescriptor *m_pPresentationDescriptor; // Default presentation
CMFStreamSource *m_pStream; // Media stream. Can be NULL is no stream is selected.
long m_nRefCount; // reference count
CRITICAL_SECTION m_critSec;
BOOL m_IsShutdown; // Flag to indicate if Shutdown() method was called.
State m_state; // Current state (running, stopped, paused)
IMFMediaType *m_pMediaType; // The supported mediaType
};
class SampleQueue
{
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; // Anchor node for the linked list.
public:
SampleQueue()
{
m_anchor.next = &m_anchor;
m_anchor.prev = &m_anchor;
}
virtual ~SampleQueue()
{
Clear();
}
HRESULT Queue(IMFSample* item)
{
if (item == NULL)
{
return E_POINTER;
}
Node *pNode = new (std::nothrow) Node(item);
if (pNode == NULL)
{
return E_OUTOFMEMORY;
}
item->AddRef();
Node *pBefore = m_anchor.prev;
Node *pAfter = pBefore->next;
pBefore->next = pNode;
pAfter->prev = pNode;
pNode->prev = pBefore;
pNode->next = pAfter;
return S_OK;
}
HRESULT Dequeue(IMFSample* *ppItem)
{
if (IsEmpty())
{
return E_FAIL;
}
if (ppItem == NULL)
{
return E_POINTER;
}
Node *pNode = m_anchor.next;
// The next node's previous is this node's previous.
pNode->next->prev = m_anchor.next->prev;
// The previous node's next is this node's next.
pNode->prev->next = pNode->next;
*ppItem = pNode->item;
delete pNode;
return S_OK;
}
BOOL IsEmpty() const { return m_anchor.next == &m_anchor; }
void Clear()
{
Node *n = m_anchor.next;
// Delete the nodes
while (n != &m_anchor)
{
if (n->item)
{
n->item->Release();
}
Node *tmp = n->next;
delete n;
n = tmp;
}
// Reset the anchor to point at itself
m_anchor.next = &m_anchor;
m_anchor.prev = &m_anchor;
}
};
//////////////////////////////////////////////////////////////////////////
// CMFStreamSource
// Description: Media stream object.
//////////////////////////////////////////////////////////////////////////
class CMFStreamSource : public IMFMediaStream
{
friend class CMFSource;
public:
// IMFCustomSource
HRESULT CopyVideoBuffer(UINT32 nWidth, UINT32 nHeight, const void* pBufferPtr, UINT32 nBufferSize);
// IUnknown
STDMETHODIMP QueryInterface(REFIID iid, void** ppv);
STDMETHODIMP_(ULONG) AddRef();
STDMETHODIMP_(ULONG) Release();
// IMFMediaEventGenerator
STDMETHODIMP BeginGetEvent(IMFAsyncCallback* pCallback,IUnknown* punkState);
STDMETHODIMP EndGetEvent(IMFAsyncResult* pResult, IMFMediaEvent** ppEvent);
STDMETHODIMP GetEvent(DWORD dwFlags, IMFMediaEvent** ppEvent);
STDMETHODIMP QueueEvent(MediaEventType met, REFGUID guidExtendedType, HRESULT hrStatus, const PROPVARIANT* pvValue);
// IMFMediaStream
STDMETHODIMP GetMediaSource(IMFMediaSource** ppMediaSource);
STDMETHODIMP GetStreamDescriptor(IMFStreamDescriptor** ppStreamDescriptor);
STDMETHODIMP RequestSample(IUnknown* pToken);
private:
CMFStreamSource(CMFSource *pSource, IMFStreamDescriptor *pSD, HRESULT& hr);
~CMFStreamSource();
HRESULT CheckShutdown() const
{
if (m_IsShutdown)
{
return MF_E_SHUTDOWN;
}
else
{
return S_OK;
}
}
HRESULT InitializeParams();
HRESULT Shutdown();
HRESULT CreateSample(IMFSample **pSample);
HRESULT DeliverSample(IMFSample *pSample);
HRESULT DeliverQueuedSamples();
HRESULT Flush();
LONGLONG GetCurrentPosition() const { return m_rtCurrentPosition; }
HRESULT SetPosition(LONGLONG rtNewPosition);
HRESULT CheckEndOfStream();
long m_nRefCount; // reference count
CRITICAL_SECTION m_critSec;
BOOL m_IsShutdown; // Flag to indicate if source's Shutdown() method was called.
LONGLONG m_rtCurrentPosition; // Current position in the stream, in 100-ns units
UINT64 m_rtDuration; // Sample duration, in 100-ns units
BOOL m_discontinuity; // Is the next sample a discontinuity?
BOOL m_EOS; // Did we reach the end of the stream?
IMFMediaEventQueue *m_pEventQueue; // Event generator helper.
CMFSource *m_pSource; // Parent media source
IMFStreamDescriptor *m_pStreamDescriptor; // Stream descriptor for this stream.
SampleQueue m_sampleQueue; // Queue for samples while paused.
GUID m_guidMajorType; // major media type (e.g. MFMediaType_Video or MFMediaType_Audio)
GUID m_guidSubType; // Media subtype (e.g. MFVideoFormat_RGB32 or MFVideoFormat_H264)
IMFMediaBuffer *m_pMediaBuffer; // Pointer to the data to deliver
UINT32 m_nBufferSize; // Size of the data to deliver
struct
{
UINT32 nWidth;
UINT32 nHeigh;
UINT32 nFps;
}
m_structVideoParams;
};
#endif /* PLUGIN_WIN_MF_CUSTOM_SOURCE_H */
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