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Diffstat (limited to 'branches/1.0/thirdparties/win32/include/directshow/transfrm.h')
| -rw-r--r-- | branches/1.0/thirdparties/win32/include/directshow/transfrm.h | 304 |
1 files changed, 0 insertions, 304 deletions
diff --git a/branches/1.0/thirdparties/win32/include/directshow/transfrm.h b/branches/1.0/thirdparties/win32/include/directshow/transfrm.h deleted file mode 100644 index 55a07dc..0000000 --- a/branches/1.0/thirdparties/win32/include/directshow/transfrm.h +++ /dev/null @@ -1,304 +0,0 @@ -//------------------------------------------------------------------------------
-// File: Transfrm.h
-//
-// Desc: DirectShow base classes - defines classes from which simple
-// transform codecs may be derived.
-//
-// Copyright (c) Microsoft Corporation. All rights reserved.
-//------------------------------------------------------------------------------
-
-
-// It assumes the codec has one input and one output stream, and has no
-// interest in memory management, interface negotiation or anything else.
-//
-// derive your class from this, and supply Transform and the media type/format
-// negotiation functions. Implement that class, compile and link and
-// you're done.
-
-
-#ifndef __TRANSFRM__
-#define __TRANSFRM__
-
-// ======================================================================
-// This is the com object that represents a simple transform filter. It
-// supports IBaseFilter, IMediaFilter and two pins through nested interfaces
-// ======================================================================
-
-class CTransformFilter;
-
-// ==================================================
-// Implements the input pin
-// ==================================================
-
-class CTransformInputPin : public CBaseInputPin
-{
- friend class CTransformFilter;
-
-protected:
- CTransformFilter *m_pTransformFilter;
-
-
-public:
-
- CTransformInputPin(
- TCHAR *pObjectName,
- CTransformFilter *pTransformFilter,
- HRESULT * phr,
- LPCWSTR pName);
-#ifdef UNICODE
- CTransformInputPin(
- char *pObjectName,
- CTransformFilter *pTransformFilter,
- HRESULT * phr,
- LPCWSTR pName);
-#endif
-
- STDMETHODIMP QueryId(LPWSTR * Id)
- {
- return AMGetWideString(L"In", Id);
- }
-
- // Grab and release extra interfaces if required
-
- HRESULT CheckConnect(IPin *pPin);
- HRESULT BreakConnect();
- HRESULT CompleteConnect(IPin *pReceivePin);
-
- // check that we can support this output type
- HRESULT CheckMediaType(const CMediaType* mtIn);
-
- // set the connection media type
- HRESULT SetMediaType(const CMediaType* mt);
-
- // --- IMemInputPin -----
-
- // here's the next block of data from the stream.
- // AddRef it yourself if you need to hold it beyond the end
- // of this call.
- STDMETHODIMP Receive(IMediaSample * pSample);
-
- // provide EndOfStream that passes straight downstream
- // (there is no queued data)
- STDMETHODIMP EndOfStream(void);
-
- // passes it to CTransformFilter::BeginFlush
- STDMETHODIMP BeginFlush(void);
-
- // passes it to CTransformFilter::EndFlush
- STDMETHODIMP EndFlush(void);
-
- STDMETHODIMP NewSegment(
- REFERENCE_TIME tStart,
- REFERENCE_TIME tStop,
- double dRate);
-
- // Check if it's OK to process samples
- virtual HRESULT CheckStreaming();
-
- // Media type
-public:
- CMediaType& CurrentMediaType() { return m_mt; };
-
-};
-
-// ==================================================
-// Implements the output pin
-// ==================================================
-
-class CTransformOutputPin : public CBaseOutputPin
-{
- friend class CTransformFilter;
-
-protected:
- CTransformFilter *m_pTransformFilter;
-
-public:
-
- // implement IMediaPosition by passing upstream
- IUnknown * m_pPosition;
-
- CTransformOutputPin(
- TCHAR *pObjectName,
- CTransformFilter *pTransformFilter,
- HRESULT * phr,
- LPCWSTR pName);
-#ifdef UNICODE
- CTransformOutputPin(
- CHAR *pObjectName,
- CTransformFilter *pTransformFilter,
- HRESULT * phr,
- LPCWSTR pName);
-#endif
- ~CTransformOutputPin();
-
- // override to expose IMediaPosition
- STDMETHODIMP NonDelegatingQueryInterface(REFIID riid, void **ppv);
-
- // --- CBaseOutputPin ------------
-
- STDMETHODIMP QueryId(LPWSTR * Id)
- {
- return AMGetWideString(L"Out", Id);
- }
-
- // Grab and release extra interfaces if required
-
- HRESULT CheckConnect(IPin *pPin);
- HRESULT BreakConnect();
- HRESULT CompleteConnect(IPin *pReceivePin);
-
- // check that we can support this output type
- HRESULT CheckMediaType(const CMediaType* mtOut);
-
- // set the connection media type
- HRESULT SetMediaType(const CMediaType *pmt);
-
- // called from CBaseOutputPin during connection to ask for
- // the count and size of buffers we need.
- HRESULT DecideBufferSize(
- IMemAllocator * pAlloc,
- ALLOCATOR_PROPERTIES *pProp);
-
- // returns the preferred formats for a pin
- HRESULT GetMediaType(int iPosition,CMediaType *pMediaType);
-
- // inherited from IQualityControl via CBasePin
- STDMETHODIMP Notify(IBaseFilter * pSender, Quality q);
-
- // Media type
-public:
- CMediaType& CurrentMediaType() { return m_mt; };
-};
-
-
-class AM_NOVTABLE CTransformFilter : public CBaseFilter
-{
-
-public:
-
- // map getpin/getpincount for base enum of pins to owner
- // override this to return more specialised pin objects
-
- virtual int GetPinCount();
- virtual CBasePin * GetPin(int n);
- STDMETHODIMP FindPin(LPCWSTR Id, IPin **ppPin);
-
- // override state changes to allow derived transform filter
- // to control streaming start/stop
- STDMETHODIMP Stop();
- STDMETHODIMP Pause();
-
-public:
-
- CTransformFilter(TCHAR *, LPUNKNOWN, REFCLSID clsid);
-#ifdef UNICODE
- CTransformFilter(CHAR *, LPUNKNOWN, REFCLSID clsid);
-#endif
- ~CTransformFilter();
-
- // =================================================================
- // ----- override these bits ---------------------------------------
- // =================================================================
-
- // These must be supplied in a derived class
-
- virtual HRESULT Transform(IMediaSample * pIn, IMediaSample *pOut);
-
- // check if you can support mtIn
- virtual HRESULT CheckInputType(const CMediaType* mtIn) PURE;
-
- // check if you can support the transform from this input to this output
- virtual HRESULT CheckTransform(const CMediaType* mtIn, const CMediaType* mtOut) PURE;
-
- // this goes in the factory template table to create new instances
- // static CCOMObject * CreateInstance(LPUNKNOWN, HRESULT *);
-
- // call the SetProperties function with appropriate arguments
- virtual HRESULT DecideBufferSize(
- IMemAllocator * pAllocator,
- ALLOCATOR_PROPERTIES *pprop) PURE;
-
- // override to suggest OUTPUT pin media types
- virtual HRESULT GetMediaType(int iPosition, CMediaType *pMediaType) PURE;
-
-
-
- // =================================================================
- // ----- Optional Override Methods -----------------------
- // =================================================================
-
- // you can also override these if you want to know about streaming
- virtual HRESULT StartStreaming();
- virtual HRESULT StopStreaming();
-
- // override if you can do anything constructive with quality notifications
- virtual HRESULT AlterQuality(Quality q);
-
- // override this to know when the media type is actually set
- virtual HRESULT SetMediaType(PIN_DIRECTION direction,const CMediaType *pmt);
-
- // chance to grab extra interfaces on connection
- virtual HRESULT CheckConnect(PIN_DIRECTION dir,IPin *pPin);
- virtual HRESULT BreakConnect(PIN_DIRECTION dir);
- virtual HRESULT CompleteConnect(PIN_DIRECTION direction,IPin *pReceivePin);
-
- // chance to customize the transform process
- virtual HRESULT Receive(IMediaSample *pSample);
-
- // Standard setup for output sample
- HRESULT InitializeOutputSample(IMediaSample *pSample, IMediaSample **ppOutSample);
-
- // if you override Receive, you may need to override these three too
- virtual HRESULT EndOfStream(void);
- virtual HRESULT BeginFlush(void);
- virtual HRESULT EndFlush(void);
- virtual HRESULT NewSegment(
- REFERENCE_TIME tStart,
- REFERENCE_TIME tStop,
- double dRate);
-
-#ifdef PERF
- // Override to register performance measurement with a less generic string
- // You should do this to avoid confusion with other filters
- virtual void RegisterPerfId()
- {m_idTransform = MSR_REGISTER(TEXT("Transform"));}
-#endif // PERF
-
-
-// implementation details
-
-protected:
-
-#ifdef PERF
- int m_idTransform; // performance measuring id
-#endif
- BOOL m_bEOSDelivered; // have we sent EndOfStream
- BOOL m_bSampleSkipped; // Did we just skip a frame
- BOOL m_bQualityChanged; // Have we degraded?
-
- // critical section protecting filter state.
-
- CCritSec m_csFilter;
-
- // critical section stopping state changes (ie Stop) while we're
- // processing a sample.
- //
- // This critical section is held when processing
- // events that occur on the receive thread - Receive() and EndOfStream().
- //
- // If you want to hold both m_csReceive and m_csFilter then grab
- // m_csFilter FIRST - like CTransformFilter::Stop() does.
-
- CCritSec m_csReceive;
-
- // these hold our input and output pins
-
- friend class CTransformInputPin;
- friend class CTransformOutputPin;
- CTransformInputPin *m_pInput;
- CTransformOutputPin *m_pOutput;
-};
-
-#endif /* __TRANSFRM__ */
-
-
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