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HRESULT GetMaxIdealImageSize([out] long *pWidth,[out] long *pHeight);
// get the restored window size when we're maximised or iconic
HRESULT GetRestorePosition([out] long *pLeft,
[out] long *pTop,
[out] long *pWidth,
[out] long *pHeight);
// show and hide cursors useful when fullscreen
HRESULT HideCursor([in] long HideCursor);
HRESULT IsCursorHidden([out] long *CursorHidden);
}
// basic video-related functionality
[
uuid(56a868b5-0ad4-11ce-b03a-0020af0ba770),
helpstring("IBasicVideo interface"),
odl,
oleautomation,
dual
]
interface IBasicVideo : IDispatch
{
// properties
// Video specific (approximate) bit and frame rates
[propget]
HRESULT AvgTimePerFrame([out, retval] REFTIME *pAvgTimePerFrame);
[propget]
HRESULT BitRate([out, retval] long *pBitRate);
[propget]
HRESULT BitErrorRate([out, retval] long *pBitErrorRate);
// read the native video size
[propget]
HRESULT VideoWidth([out, retval] long *pVideoWidth);
[propget]
HRESULT VideoHeight([out, retval] long *pVideoHeight);
// change the source rectangle for the video
[propput]
HRESULT SourceLeft([in] long SourceLeft);
[propget]
HRESULT SourceLeft([out, retval] long *pSourceLeft);
[propput]
HRESULT SourceWidth([in] long SourceWidth);
[propget]
HRESULT SourceWidth([out, retval] long *pSourceWidth);
[propput]
HRESULT SourceTop([in] long SourceTop);
[propget]
HRESULT SourceTop([out, retval] long *pSourceTop);
[propput]
HRESULT SourceHeight([in] long SourceHeight);
[propget]
HRESULT SourceHeight([out, retval] long *pSourceHeight);
// change the destination rectangle for the video
[propput]
HRESULT DestinationLeft([in] long DestinationLeft);
[propget]
HRESULT DestinationLeft([out, retval] long *pDestinationLeft);
[propput]
HRESULT DestinationWidth([in] long DestinationWidth);
[propget]
HRESULT DestinationWidth([out, retval] long *pDestinationWidth);
[propput]
HRESULT DestinationTop([in] long DestinationTop);
[propget]
HRESULT DestinationTop([out, retval] long *pDestinationTop);
[propput]
HRESULT DestinationHeight([in] long DestinationHeight);
[propget]
HRESULT DestinationHeight([out, retval] long *pDestinationHeight);
// methods
// get and set the source rectangle position
HRESULT SetSourcePosition([in] long Left,
[in] long Top,
[in] long Width,
[in] long Height);
HRESULT GetSourcePosition([out] long *pLeft,
[out] long *pTop,
[out] long *pWidth,
[out] long *pHeight);
HRESULT SetDefaultSourcePosition();
// get and set the destination rectangle position
HRESULT SetDestinationPosition([in] long Left,
[in] long Top,
[in] long Width,
[in] long Height);
HRESULT GetDestinationPosition([out] long *pLeft,
[out] long *pTop,
[out] long *pWidth,
[out] long *pHeight);
HRESULT SetDefaultDestinationPosition();
// get the native video dimensions
HRESULT GetVideoSize([out] long *pWidth,[out] long *pHeight);
// get all or some of the current video palette
HRESULT GetVideoPaletteEntries([in] long StartIndex,
[in] long Entries,
[out] long *pRetrieved,
[out] long *pPalette);
HRESULT GetCurrentImage([in,out] long *pBufferSize,
[out] long *pDIBImage);
// are we using a default source or destination
HRESULT IsUsingDefaultSource();
HRESULT IsUsingDefaultDestination();
}
// interface extension to IBasicVideo to return preferred aspect ratio
[
uuid(329bb360-f6ea-11d1-9038-00a0c9697298),
helpstring("IBasicVideo2"),
odl
]
interface IBasicVideo2 : IBasicVideo
{
// This may not match the native video dimensions because of
// non-square pixels or whatever.
// The video may not always be displayed in the preferred
// aspect ratio for performance reasons
HRESULT GetPreferredAspectRatio([out] long *plAspectX,
[out] long *plAspectY);
}
// interface returned to a command that has been queued via IQueueCommand
[
uuid(56a868b8-0ad4-11ce-b03a-0020af0ba770),
helpstring("IDeferredCommand"),
odl
]
interface IDeferredCommand : IUnknown
{
HRESULT Cancel();
HRESULT Confidence(
[out] LONG* pConfidence);
HRESULT Postpone(
[in] REFTIME newtime);
// return value is S_OK if completed. phrResult is set to the
// result of the deferred command.
HRESULT GetHResult(
[out] HRESULT* phrResult);
};
// queue an IDispatch-based command for execution at a specified time
[
uuid(56a868b7-0ad4-11ce-b03a-0020af0ba770),
helpstring("IQueueCommand"),
odl
]
interface IQueueCommand : IUnknown
{
HRESULT InvokeAtStreamTime(
[out] IDeferredCommand** pCmd,
[in] REFTIME time, // at this streamtime
[in] GUID* iid, // call this interface
[in] long dispidMethod, // ..and this method
[in] short wFlags, // method/property
[in] long cArgs, // count of args
[in] VARIANT* pDispParams, // actual args
[in, out] VARIANT* pvarResult, // return value
[out] short* puArgErr // which arg in error
);
HRESULT InvokeAtPresentationTime(
[out] IDeferredCommand** pCmd,
[in] REFTIME time, // at this presentation time
[in] GUID* iid, // call this interface
[in] long dispidMethod, // ..and this method
[in] short wFlags, // method/property
[in] long cArgs, // count of args
[in] VARIANT* pDispParams, // actual args
[in, out] VARIANT* pvarResult, // return value
[out] short* puArgErr // which arg in error
);
};
// the filgraph object (CLSID_Filgraph)
[
uuid(e436ebb3-524f-11ce-9f53-0020af0ba770),
helpstring("Filtergraph type info")
]
coclass FilgraphManager
{
[default] interface IMediaControl;
interface IMediaEvent;
interface IMediaPosition;
interface IBasicAudio;
interface IBasicVideo;
interface IVideoWindow;
};
// represents a filter (you can't QI for IBaseFilter from this object)
[
uuid(56a868ba-0ad4-11ce-b03a-0020af0ba770),
helpstring("FilterInfo"),
odl,
oleautomation,
dual
]
interface IFilterInfo : IDispatch
{
// find a pin given an id - returns an object supporting
// IPinInfo
HRESULT FindPin(
[in] BSTR strPinID,
[out] IDispatch** ppUnk);
// filter name
[propget]
HRESULT Name(
[out, retval] BSTR* strName);
// Vendor info string
[propget]
HRESULT VendorInfo(
[out, retval] BSTR* strVendorInfo);
// returns the actual filter object (supports IBaseFilter)
[propget]
HRESULT Filter(
[out, retval] IUnknown **ppUnk);
// returns an IAMCollection object containing the PinInfo objects
// for this filter
[propget]
HRESULT Pins(
[out, retval] IDispatch ** ppUnk);
// returns -1 if true or 0 if false (OATRUE/FALSE)
[propget]
HRESULT IsFileSource(
[out, retval] LONG * pbIsSource);
[propget]
HRESULT Filename(
[out, retval] BSTR* pstrFilename);
[propput]
HRESULT Filename(
[in] BSTR strFilename);
}
[
uuid(56a868bb-0ad4-11ce-b03a-0020af0ba770),
helpstring("Registry Filter Info"),
odl,
oleautomation,
dual
]
interface IRegFilterInfo : IDispatch
{
// get the name of this filter
[propget]
HRESULT Name(
[out, retval] BSTR* strName);
// make an instance of this filter, add it to the graph and
// return an IFilterInfo for it.
HRESULT Filter(
[out] IDispatch** ppUnk);
}
// wrapper for a media type
[
uuid(56a868bc-0ad4-11ce-b03a-0020af0ba770),
helpstring("Media Type"),
odl,
oleautomation,
dual
]
interface IMediaTypeInfo : IDispatch
{
// get the major type GUID as a string
[propget]
HRESULT Type(
[out, retval] BSTR* strType);
// get the subtype GUID as a string
[propget]
HRESULT Subtype(
[out, retval] BSTR* strType);
}
[
uuid(56a868bd-0ad4-11ce-b03a-0020af0ba770),
helpstring("Pin Info"),
odl,
oleautomation,
dual
]
interface IPinInfo : IDispatch
{
// get the pin object (IUnknown for an object that
// supports IPin
[propget]
HRESULT Pin(
[out, retval] IUnknown** ppUnk);
// get the PinInfo object for the pin we are connected to
[propget]
HRESULT ConnectedTo(
[out, retval] IDispatch** ppUnk);
// get the media type on this connection - returns an
// object supporting IMediaTypeInfo
[propget]
HRESULT ConnectionMediaType(
[out, retval] IDispatch** ppUnk);
// return the FilterInfo object for the filter this pin
// is part of
[propget]
HRESULT FilterInfo(
[out, retval] IDispatch** ppUnk);
// get the name of this pin
[propget]
HRESULT Name(
[out, retval] BSTR* ppUnk);
// pin direction
[propget]
HRESULT Direction(
[out, retval] LONG *ppDirection);
// PinID - can pass to IFilterInfo::FindPin
[propget]
HRESULT PinID(
[out, retval] BSTR* strPinID);
// collection of preferred media types (IAMCollection)
[propget]
HRESULT MediaTypes(
[out, retval] IDispatch** ppUnk);
// Connect to the following pin, using other transform
// filters as necessary. pPin can support either IPin or IPinInfo
HRESULT Connect(
[in] IUnknown* pPin);
// Connect directly to the following pin, not using any intermediate
// filters
HRESULT ConnectDirect(
[in] IUnknown* pPin);
// Connect directly to the following pin, using the specified
// media type only. pPin is an object that must support either
// IPin or IPinInfo, and pMediaType must support IMediaTypeInfo.
HRESULT ConnectWithType(
[in] IUnknown * pPin,
[in] IDispatch * pMediaType);
// disconnect this pin and the corresponding connected pin from
// each other. (Calls IPin::Disconnect on both pins).
HRESULT Disconnect(void);
// render this pin using any necessary transform and rendering filters
HRESULT Render(void);
}
//--------------------------------------------------------------------
//
// IAMStats - statistics
//
// Note that the calls using an index are likely to be much faster
//--------------------------------------------------------------------
[
uuid(bc9bcf80-dcd2-11d2-abf6-00a0c905f375),
helpstring("Statistics"),
odl,
oleautomation,
dual
]
interface IAMStats : IDispatch {
// Reset all stats
HRESULT Reset();
// Get number of stats collected
[propget]
HRESULT Count(
[out, retval] LONG* plCount);
// Pull out a specific value by position
HRESULT GetValueByIndex([in] long lIndex,
[out] BSTR *szName,
[out] long *lCount,
[out] double *dLast,
[out] double *dAverage,
[out] double *dStdDev,
[out] double *dMin,
[out] double *dMax);
// Pull out a specific value by name
HRESULT GetValueByName([in] BSTR szName,
[out] long *lIndex,
[out] long *lCount,
[out] double *dLast,
[out] double *dAverage,
[out] double *dStdDev,
[out] double *dMin,
[out] double *dMax);
// The calls below are for generators of statistics
// Return the index for a string - optinally create
HRESULT GetIndex([in] BSTR szName,
[in] long lCreate,
[out] long *plIndex);
// Add a new value
HRESULT AddValue([in] long lIndex,
[in] double dValue);
}
};
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