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//------------------------------------------------------------------------------
// File: PushSource.H
//
// Desc: DirectShow sample code - In-memory push mode source filter
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------------------------
#ifndef PLUGIN_DSHOW_DSPUSHSOURCE_H
#define PLUGIN_DSHOW_DSPUSHSOURCE_H
#include "plugin_dshow_config.h"
#include <strsafe.h>
// UNITS = 10 ^ 7
// UNITS / 30 = 30 fps;
// UNITS / 20 = 20 fps, etc
const REFERENCE_TIME FPS_30 = UNITS / 30;
const REFERENCE_TIME FPS_20 = UNITS / 20;
const REFERENCE_TIME FPS_10 = UNITS / 10;
const REFERENCE_TIME FPS_5 = UNITS / 5;
const REFERENCE_TIME FPS_4 = UNITS / 4;
const REFERENCE_TIME FPS_3 = UNITS / 3;
const REFERENCE_TIME FPS_2 = UNITS / 2;
const REFERENCE_TIME FPS_1 = UNITS / 1;
const REFERENCE_TIME rtDefaultFrameLength = FPS_10;
// Filter name strings
#define g_wszPushBitmap L"PushSource Bitmap Filter"
#define g_wszPushBitmapSet L"PushSource BitmapSet Filter"
#define g_wszPushDesktop L"PushSource Desktop Filter"
// Number of bitmap files to load in the CPushPinBitmapSet class
#define NUM_FILES 5
// {3FD3081A-A8C9-4958-9F75-07EC89690024}
TDSHOW_DEFINE_GUID(CLSID_PushSourceDesktop,
0x3fd3081a, 0xa8c9, 0x4958, 0x9f, 0x75, 0x7, 0xec, 0x89, 0x69, 0x0, 0x24);
/**********************************************
*
* Class declarations
*
**********************************************/
class CPushPinBitmap : public CSourceStream
{
protected:
int m_FramesWritten; // To track where we are in the file
BOOL m_bZeroMemory; // Do we need to clear the buffer?
CRefTime m_rtSampleTime; // The time stamp for each sample
BITMAPINFO *m_pBmi; // Pointer to the bitmap header
DWORD m_cbBitmapInfo; // Size of the bitmap header
// File opening variables
HANDLE m_hFile; // Handle returned from CreateFile
BYTE * m_pFile; // Points to beginning of file buffer
BYTE * m_pImage; // Points to pixel bits
int m_iFrameNumber;
const REFERENCE_TIME m_rtFrameLength;
CCritSec m_cSharedState; // Protects our internal state
CImageDisplay m_Display; // Figures out our media type for us
public:
CPushPinBitmap(HRESULT *phr, CSource *pFilter);
~CPushPinBitmap();
// Override the version that offers exactly one media type
HRESULT GetMediaType(CMediaType *pMediaType);
HRESULT DecideBufferSize(IMemAllocator *pAlloc, ALLOCATOR_PROPERTIES *pRequest);
HRESULT FillBuffer(IMediaSample *pSample);
// Quality control
// Not implemented because we aren't going in real time.
// If the file-writing filter slows the graph down, we just do nothing, which means
// wait until we're unblocked. No frames are ever dropped.
STDMETHODIMP Notify(IBaseFilter *pSelf, Quality q)
{
return E_FAIL;
}
};
class CPushPinBitmapSet : public CSourceStream
{
protected:
int m_FramesWritten; // To track where we are in the file
BOOL m_bZeroMemory; // Do we need to clear the buffer?
CRefTime m_rtSampleTime; // The time stamp for each sample
BITMAPINFO *m_pBmi[NUM_FILES]; // Pointer to the bitmap headers
DWORD m_cbBitmapInfo[NUM_FILES]; // Size of the bitmap headers
// File opening variables
HANDLE m_hFile[NUM_FILES]; // Handles returned from CreateFile
BYTE * m_pFile[NUM_FILES]; // Points to beginning of file buffers
BYTE * m_pImage[NUM_FILES]; // Points to pixel bits
BOOL m_bFilesLoaded;
int m_iCurrentBitmap; // Which bitmap is being displayed
int m_iFrameNumber; // How many frames have been displayed
const REFERENCE_TIME m_rtFrameLength; // Duration of one frame
CCritSec m_cSharedState; // Protects our internal state
CImageDisplay m_Display; // Figures out our media type for us
public:
CPushPinBitmapSet(HRESULT *phr, CSource *pFilter);
~CPushPinBitmapSet();
// Override the version that offers exactly one media type
HRESULT GetMediaType(CMediaType *pMediaType);
HRESULT DecideBufferSize(IMemAllocator *pAlloc, ALLOCATOR_PROPERTIES *pRequest);
HRESULT FillBuffer(IMediaSample *pSample);
// Quality control
// Not implemented because we aren't going in real time.
// If the file-writing filter slows the graph down, we just do nothing, which means
// wait until we're unblocked. No frames are ever dropped.
STDMETHODIMP Notify(IBaseFilter *pSelf, Quality q)
{
return E_FAIL;
}
};
class CPushPinDesktop : public CSourceStream
{
protected:
int m_FramesWritten; // To track where we are in the file
BOOL m_bZeroMemory; // Do we need to clear the buffer?
CRefTime m_rtSampleTime; // The time stamp for each sample
int m_iFrameNumber;
const REFERENCE_TIME m_rtFrameLength;
RECT m_rScreen; // Rect containing entire screen coordinates
int m_iImageHeight; // The current image height
int m_iImageWidth; // And current image width
int m_iRepeatTime; // Time in msec between frames
int m_nCurrentBitDepth; // Screen bit depth
CMediaType m_MediaType;
CCritSec m_cSharedState; // Protects our internal state
CImageDisplay m_Display; // Figures out our media type for us
HWND m_hSrcHwnd; // Handle to the window to grab
public:
CPushPinDesktop(HRESULT *phr, CSource *pFilter);
~CPushPinDesktop();
// Override the version that offers exactly one media type
HRESULT DecideBufferSize(IMemAllocator *pAlloc, ALLOCATOR_PROPERTIES *pRequest);
HRESULT FillBuffer(IMediaSample *pSample);
// Set the agreed media type and set up the necessary parameters
HRESULT SetMediaType(const CMediaType *pMediaType);
// Support multiple display formats
HRESULT CheckMediaType(const CMediaType *pMediaType);
HRESULT GetMediaType(int iPosition, CMediaType *pmt);
// Quality control
// Not implemented because we aren't going in real time.
// If the file-writing filter slows the graph down, we just do nothing, which means
// wait until we're unblocked. No frames are ever dropped.
STDMETHODIMP Notify(IBaseFilter *pSelf, Quality q)
{
return E_FAIL;
}
HRESULT SetSrcHwnd(HWND hWnd)
{
m_hSrcHwnd = hWnd;
return S_OK;
}
};
class CPushSourceBitmap : public CSource
{
private:
// Constructor is private because you have to use CreateInstance
CPushSourceBitmap(IUnknown *pUnk, HRESULT *phr);
~CPushSourceBitmap();
CPushPinBitmap *m_pPin;
public:
static CUnknown * WINAPI CreateInstance(IUnknown *pUnk, HRESULT *phr);
};
class CPushSourceBitmapSet : public CSource
{
private:
// Constructor is private because you have to use CreateInstance
CPushSourceBitmapSet(IUnknown *pUnk, HRESULT *phr);
~CPushSourceBitmapSet();
CPushPinBitmapSet *m_pPin;
public:
static CUnknown * WINAPI CreateInstance(IUnknown *pUnk, HRESULT *phr);
};
class CPushSourceDesktop : public CSource
{
private:
// Constructor is private because you have to use CreateInstance
CPushSourceDesktop(IUnknown *pUnk, HRESULT *phr);
~CPushSourceDesktop();
CPushPinDesktop *m_pPin;
public:
static CUnknown * WINAPI CreateInstance(IUnknown *pUnk, HRESULT *phr);
DECLARE_IUNKNOWN;
HRESULT SetSrcHwnd(HWND hWnd);
};
#endif /* PLUGIN_DSHOW_DSPUSHSOURCE_H */
//------------------------------------------------------------------------------
// File: PushSource.H
//
// Desc: DirectShow sample code - In-memory push mode source filter
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------------------------
#ifndef PLUGIN_DSHOW_DSPUSHSOURCE_H
#define PLUGIN_DSHOW_DSPUSHSOURCE_H
#include "plugin_dshow_config.h"
#include <strsafe.h>
// UNITS = 10 ^ 7
// UNITS / 30 = 30 fps;
// UNITS / 20 = 20 fps, etc
const REFERENCE_TIME FPS_30 = UNITS / 30;
const REFERENCE_TIME FPS_20 = UNITS / 20;
const REFERENCE_TIME FPS_10 = UNITS / 10;
const REFERENCE_TIME FPS_5 = UNITS / 5;
const REFERENCE_TIME FPS_4 = UNITS / 4;
const REFERENCE_TIME FPS_3 = UNITS / 3;
const REFERENCE_TIME FPS_2 = UNITS / 2;
const REFERENCE_TIME FPS_1 = UNITS / 1;
const REFERENCE_TIME rtDefaultFrameLength = FPS_10;
// Filter name strings
#define g_wszPushBitmap L"PushSource Bitmap Filter"
#define g_wszPushBitmapSet L"PushSource BitmapSet Filter"
#define g_wszPushDesktop L"PushSource Desktop Filter"
// Number of bitmap files to load in the CPushPinBitmapSet class
#define NUM_FILES 5
// {3FD3081A-A8C9-4958-9F75-07EC89690024}
TDSHOW_DEFINE_GUID(CLSID_PushSourceDesktop,
0x3fd3081a, 0xa8c9, 0x4958, 0x9f, 0x75, 0x7, 0xec, 0x89, 0x69, 0x0, 0x24);
/**********************************************
*
* Class declarations
*
**********************************************/
class CPushPinBitmap : public CSourceStream
{
protected:
int m_FramesWritten; // To track where we are in the file
BOOL m_bZeroMemory; // Do we need to clear the buffer?
CRefTime m_rtSampleTime; // The time stamp for each sample
BITMAPINFO *m_pBmi; // Pointer to the bitmap header
DWORD m_cbBitmapInfo; // Size of the bitmap header
// File opening variables
HANDLE m_hFile; // Handle returned from CreateFile
BYTE * m_pFile; // Points to beginning of file buffer
BYTE * m_pImage; // Points to pixel bits
int m_iFrameNumber;
const REFERENCE_TIME m_rtFrameLength;
CCritSec m_cSharedState; // Protects our internal state
CImageDisplay m_Display; // Figures out our media type for us
public:
CPushPinBitmap(HRESULT *phr, CSource *pFilter);
~CPushPinBitmap();
// Override the version that offers exactly one media type
HRESULT GetMediaType(CMediaType *pMediaType);
HRESULT DecideBufferSize(IMemAllocator *pAlloc, ALLOCATOR_PROPERTIES *pRequest);
HRESULT FillBuffer(IMediaSample *pSample);
// Quality control
// Not implemented because we aren't going in real time.
// If the file-writing filter slows the graph down, we just do nothing, which means
// wait until we're unblocked. No frames are ever dropped.
STDMETHODIMP Notify(IBaseFilter *pSelf, Quality q)
{
return E_FAIL;
}
};
class CPushPinBitmapSet : public CSourceStream
{
protected:
int m_FramesWritten; // To track where we are in the file
BOOL m_bZeroMemory; // Do we need to clear the buffer?
CRefTime m_rtSampleTime; // The time stamp for each sample
BITMAPINFO *m_pBmi[NUM_FILES]; // Pointer to the bitmap headers
DWORD m_cbBitmapInfo[NUM_FILES]; // Size of the bitmap headers
// File opening variables
HANDLE m_hFile[NUM_FILES]; // Handles returned from CreateFile
BYTE * m_pFile[NUM_FILES]; // Points to beginning of file buffers
BYTE * m_pImage[NUM_FILES]; // Points to pixel bits
BOOL m_bFilesLoaded;
int m_iCurrentBitmap; // Which bitmap is being displayed
int m_iFrameNumber; // How many frames have been displayed
const REFERENCE_TIME m_rtFrameLength; // Duration of one frame
CCritSec m_cSharedState; // Protects our internal state
CImageDisplay m_Display; // Figures out our media type for us
public:
CPushPinBitmapSet(HRESULT *phr, CSource *pFilter);
~CPushPinBitmapSet();
// Override the version that offers exactly one media type
HRESULT GetMediaType(CMediaType *pMediaType);
HRESULT DecideBufferSize(IMemAllocator *pAlloc, ALLOCATOR_PROPERTIES *pRequest);
HRESULT FillBuffer(IMediaSample *pSample);
// Quality control
// Not implemented because we aren't going in real time.
// If the file-writing filter slows the graph down, we just do nothing, which means
// wait until we're unblocked. No frames are ever dropped.
STDMETHODIMP Notify(IBaseFilter *pSelf, Quality q)
{
return E_FAIL;
}
};
class CPushPinDesktop : public CSourceStream
{
protected:
int m_FramesWritten; // To track where we are in the file
BOOL m_bZeroMemory; // Do we need to clear the buffer?
CRefTime m_rtSampleTime; // The time stamp for each sample
int m_iFrameNumber;
const REFERENCE_TIME m_rtFrameLength;
RECT m_rScreen; // Rect containing entire screen coordinates
int m_iImageHeight; // The current image height
int m_iImageWidth; // And current image width
int m_iRepeatTime; // Time in msec between frames
int m_nCurrentBitDepth; // Screen bit depth
CMediaType m_MediaType;
CCritSec m_cSharedState; // Protects our internal state
CImageDisplay m_Display; // Figures out our media type for us
HWND m_hSrcHwnd; // Handle to the window to grab
public:
CPushPinDesktop(HRESULT *phr, CSource *pFilter);
~CPushPinDesktop();
// Override the version that offers exactly one media type
HRESULT DecideBufferSize(IMemAllocator *pAlloc, ALLOCATOR_PROPERTIES *pRequest);
HRESULT FillBuffer(IMediaSample *pSample);
// Set the agreed media type and set up the necessary parameters
HRESULT SetMediaType(const CMediaType *pMediaType);
// Support multiple display formats
HRESULT CheckMediaType(const CMediaType *pMediaType);
HRESULT GetMediaType(int iPosition, CMediaType *pmt);
// Quality control
// Not implemented because we aren't going in real time.
// If the file-writing filter slows the graph down, we just do nothing, which means
// wait until we're unblocked. No frames are ever dropped.
STDMETHODIMP Notify(IBaseFilter *pSelf, Quality q)
{
return E_FAIL;
}
HRESULT SetSrcHwnd(HWND hWnd)
{
m_hSrcHwnd = hWnd;
return S_OK;
}
};
class CPushSourceBitmap : public CSource
{
private:
// Constructor is private because you have to use CreateInstance
CPushSourceBitmap(IUnknown *pUnk, HRESULT *phr);
~CPushSourceBitmap();
CPushPinBitmap *m_pPin;
public:
static CUnknown * WINAPI CreateInstance(IUnknown *pUnk, HRESULT *phr);
};
class CPushSourceBitmapSet : public CSource
{
private:
// Constructor is private because you have to use CreateInstance
CPushSourceBitmapSet(IUnknown *pUnk, HRESULT *phr);
~CPushSourceBitmapSet();
CPushPinBitmapSet *m_pPin;
public:
static CUnknown * WINAPI CreateInstance(IUnknown *pUnk, HRESULT *phr);
};
class CPushSourceDesktop : public CSource
{
private:
// Constructor is private because you have to use CreateInstance
CPushSourceDesktop(IUnknown *pUnk, HRESULT *phr);
~CPushSourceDesktop();
CPushPinDesktop *m_pPin;
public:
static CUnknown * WINAPI CreateInstance(IUnknown *pUnk, HRESULT *phr);
DECLARE_IUNKNOWN;
HRESULT SetSrcHwnd(HWND hWnd);
};
#endif /* PLUGIN_DSHOW_DSPUSHSOURCE_H */
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