Programming a Multiplayer FPS in DirectX/Programming a Multiplayer FPS in DirectX (Companion CD).iso/DirectX/dxsdk_oct2004.exe/dxsdk.exe/Include/DShowIDL/axextend.idl

Text File | 2004-09-27 | 176.3 KB | 5,170 lines

//------------------------------------------------------------------------------
// File: AXExtend.idl
//
// Desc: Extended streaming interface definitions for the ActiveMovie
//       streaming and synchronization architecture.  Core streaming
//       interfaces are in AXCore.idl, and control interfaces for the
//       type library are in Control.odl.
//
// Copyright (c) 1992 - 2000, Microsoft Corporation.  All rights reserved.
//------------------------------------------------------------------------------


// include after unknwn.idl, objidl.idl and axcore.idl


// forward declarations - these are the interfaces declared in this file

interface IEnumRegFilters;
interface IFileSourceFilter;
interface IFileSinkFilter;
interface IFileSinkFilter2;
interface IGraphBuilder;
interface ICaptureGraphBuilder;
interface ICaptureGraphBuilder2;
interface IAMCopyCaptureFileProgress;
interface IFilterMapper;
interface IFilterMapper2;
interface IMediaEventSink;
interface IOverlay;
interface IOverlayNotify;
interface IOverlayNotify2;
interface IQualityControl;
interface ISeekingPassThru;
interface IAMStreamConfig;
interface IAMDevMemoryAllocator;
interface IAMDevMemoryControl;
interface IConfigInterleaving;
interface IConfigAviMux;
interface IAMVideoCompression;
interface IAMVfwCaptureDialogs;
interface IAMVfwCompressDialogs;
interface IAMDroppedFrames;
interface IAMAudioInputMixer;
interface IAMBufferNegotiation;
interface IAMAnalogVideoDecoder;
interface IAMVideoProcAmp;
interface IAMAnalogVideoEncoder;
interface IAMCameraControl;
interface IAMCrossbar;
interface IAMTVTuner;
interface IKsPropertySet;
interface IAMPhysicalPinInfo;
interface IAMExtDevice;
interface IAMExtTransport;
interface IAMTimecodeReader;
interface IAMTimecodeGenerator;
interface IAMTimecodeDisplay;
interface IDrawVideoImage;
interface IDecimateVideoImage;
interface IAMVideoDecimationProperties;
interface IAMPushSource;
interface IAMAudioRendererStats;
interface IAMLatency;
interface IAMGraphStreams;
interface IAMOverlayFX;
interface IAMOpenProgress;
interface IMpeg2Demultiplexer ;
interface IMPEG2StreamIdMap ;
interface IEnumStreamIdMap ;
interface IAMClockSlave ;
interface IEncoderAPI;
interface IVideoEncoder;
interface IAMGraphBuilderCallback;
interface IAMCertifiedOutputProtection;

//==========================================================================
//==========================================================================
// IEnumRegFilters interface -- enumerates registered filters.
// enumerator interface returned from IFilterMapper::EnumMatchingFilters().
// based on IEnum pseudo-template
//==========================================================================
//==========================================================================

typedef struct {
    CLSID Clsid;             // class id of the filter
    LPWSTR Name;             // name of filter
} REGFILTER;

[
object,
uuid(56a868a4-0ad4-11ce-b03a-0020af0ba770),
pointer_default(unique)
]

// The point of the mapper is to avoid loading filters.  By looking in the
// registry we can reduce the number of filters which must be loaded and tried.
// This enumerator returns descriptors of filters (including the GUIDs that
// CoCreateInstance can instantiate).  The filters themselves are not loaded.

interface IEnumRegFilters : IUnknown {
    import "unknwn.idl";

    // The caller must use CoTaskMemFree to free each REGFILTER* returned
    // in the array.
    HRESULT Next
        ( [in]  ULONG cFilters,           // place this many filters...
          [out] REGFILTER ** apRegFilter, // ...in this array of REGFILTER*
          [out] ULONG * pcFetched         // actual count passed returned here
        );

    // I can't think why anyone would want to skip, so it's not implemented.
    // (anyone who thinks they know what they would be skipping over is probably
    // missing some piece of the jigsaw). This ALWAYS returns E_NOTIMPL.

    HRESULT Skip(
        [in] ULONG cFilters
    );

    HRESULT Reset(void);

    // No cloning either - also ALWAYS returns E_NOTIMPL.

    HRESULT Clone(
        [out] IEnumRegFilters **ppEnum
    );
}


typedef IEnumRegFilters *PENUMREGFILTERS;

//========================================================================
//========================================================================
// abstraction representing the registered information about filters.
// This allows properties of filters to be looked up without loading them.
//========================================================================
//========================================================================

[
object,
uuid(56a868a3-0ad4-11ce-b03a-0020af0ba770),
pointer_default(unique)
]
interface IFilterMapper : IUnknown {
    import "unknwn.idl";

    //==========================================================================
    // Registration functions.
    // A filter should be registered before any other use.
    // The registration can be NON_VOLATILE (i.e. permanent, do once ever)
    // or VOLATILE (once per boot of the system).
    // UnregisterFilter (obviously) removes the registration.
    // The action of any of the other calls on unregistered filters is undefined.
    // it will either work or you'll get an error, but I'm not saying which.
    //==========================================================================

    // Four predefined values controling the order in which filters are tried
    // for intelligent graph building.  Intermediate values are legal.
    // Any value <=MERIT_DO_NOT_USE will mean that the filter will never
    // be tried by the filtergrah to automatically complete a connection.

    enum { MERIT_PREFERRED     = 0x800000,
           MERIT_NORMAL        = 0x600000,
           MERIT_UNLIKELY      = 0x400000,
           MERIT_DO_NOT_USE    = 0x200000,
           MERIT_SW_COMPRESSOR = 0x100000,
           MERIT_HW_COMPRESSOR = 0x100050
         };

    // Register a filter

    HRESULT RegisterFilter
        ( [in] CLSID   clsid,    // GUID of the filter
          [in] LPCWSTR Name,     // Descriptive name for the filter
          [in] DWORD   dwMerit   // DO_NOT_USE, UNLIKELY, NORMAL or PREFERRED.
        );


    // Register an identifiable instance of a filter.  This deals with cases
    // such as two similar sound cards which are driven by the same driver,
    // but we want to choose which oif these cards the sound will come out of.
    // This is not needed if there is only one instance of the filter
    // (e.g. there is only one sound card in the machine) or if all instances
    // of the filter are equivalent.

    // The filter itself must have already been registered   // ??? Is that true?
    HRESULT RegisterFilterInstance
        ( [in]  CLSID  clsid,      // GUID of the filter
          [in]  LPCWSTR Name,      // Descriptive name of instance.
          [out] CLSID *MRId        // Returned Media Resource Id.  A
                                   // locally unique id for this instance
                                   // of this filter
        );


    HRESULT RegisterPin
        ( [in] CLSID   Filter,           // GUID of filter
          [in] LPCWSTR Name,             // Name of the pin
          [in] BOOL    bRendered,        // The filter renders this input
          [in] BOOL    bOutput,          // TRUE if this is an Output pin
          [in] BOOL    bZero,            // TRUE if OK for zero instances of pin
                                         // In this case you will have to Create
                                         // a pin to have even one instance
          [in] BOOL    bMany,            // TRUE if OK for many instances of pin
          [in] CLSID   ConnectsToFilter, // Filter it connects to if it has
                                         // subterranean connection, else NULL
          [in] LPCWSTR ConnectsToPin     // Name of pin it connects to
                                         // NULL for output pins
        );

    HRESULT RegisterPinType
        ( [in] CLSID   clsFilter,        // GUID of filter
          [in] LPCWSTR strName,          // Descriptive name of the pin
          [in] CLSID   clsMajorType,     // Major type of the data stream
          [in] CLSID   clsSubType        // Sub type of the data stream
        );


    HRESULT UnregisterFilter
        ( [in] CLSID  Filter             // GUID of filter
        );


    HRESULT UnregisterFilterInstance
        ( [in] CLSID  MRId               // Media Resource Id of this instance
        );


    HRESULT UnregisterPin
        ( [in] CLSID   Filter,           // GUID of filter
          [in] LPCWSTR Name              // Name of the pin
        );


    // Set *ppEnum to be an enumerator for filters matching the requirements.

    HRESULT EnumMatchingFilters
       ( [out] IEnumRegFilters **ppEnum  // enumerator returned
       , [in]  DWORD dwMerit             // at least this merit needed
       , [in]  BOOL  bInputNeeded        // need at least one input pin
       , [in]  CLSID clsInMaj            // input major type
       , [in]  CLSID clsInSub            // input sub type
       , [in]  BOOL  bRender             // must the input be rendered?
       , [in]  BOOL  bOututNeeded        // need at least one output pin
       , [in]  CLSID clsOutMaj           // output major type
       , [in]  CLSID clsOutSub           // output sub type
       );

}

// structure used to identify media types a pin handles. Used for
// registration through IFilterMapper and IFilterMapper2
//
typedef struct
{
    const CLSID * clsMajorType;
    const CLSID * clsMinorType;
} REGPINTYPES;

// describes pin for filter registration. Used for registration
// through IFilterMapper and IFilterMapper2
//
typedef struct
{
    LPWSTR           strName;

    // The filter renders this input
    BOOL             bRendered;

    // This is an Output pin
    BOOL             bOutput;

    // OK to have zero instances of pin In this case you will have to
    // Create a pin to have even one instance
    BOOL             bZero;

    // OK to create many instance of  pin
    BOOL             bMany;

    const CLSID *    clsConnectsToFilter;
    const WCHAR *    strConnectsToPin;

    UINT             nMediaTypes;
    const REGPINTYPES * lpMediaType;
} REGFILTERPINS;

// mediums (as defined in the Windows NT DDK) for registration with
// IFilterMapper2
//
typedef struct
{
    CLSID clsMedium;
    DWORD dw1;
    DWORD dw2;
} REGPINMEDIUM;

// flags for dwFlags in REFILTERPINS2
enum
{
    // OK to have zero instances of pin In this case you will have to
    // Create a pin to have even one instance
    REG_PINFLAG_B_ZERO = 0x1,

    // The filter renders this input
    REG_PINFLAG_B_RENDERER = 0x2,

    // OK to create many instance of  pin
    REG_PINFLAG_B_MANY = 0x4,

    // This is an Output pin
    REG_PINFLAG_B_OUTPUT = 0x8
};


// describes pin for filter registration through IFilterMapper2
typedef struct
{
    // combination of REG_PINFLAG flags
    DWORD dwFlags;

    // number of instances of the pin if known
    UINT             cInstances;

    UINT             nMediaTypes;
    [size_is(nMediaTypes)] const REGPINTYPES * lpMediaType;

    UINT             nMediums;
    [size_is(nMediums)] const REGPINMEDIUM *lpMedium;

    // pin category (for Kernel Streaming pins) as defined in the
    // Windows NT DDK
    const CLSID      *clsPinCategory;

} REGFILTERPINS2;

// describes filter for registration through IFilterMapper2
typedef struct
{
    DWORD dwVersion;            // 1 or 2
    DWORD dwMerit;

    /* unnamed union */
    [switch_is(dwVersion)] [switch_type(DWORD)] union
    {
        [case(1)]

            struct
            {
                ULONG cPins;
                [size_is(cPins)] const REGFILTERPINS *rgPins;
            };

        [case(2)]

            struct
            {
                ULONG cPins2;
                [size_is(cPins2)] const REGFILTERPINS2 *rgPins2;
            };

        [default]
            ;
    } ;

} REGFILTER2;



[
object,
uuid(b79bb0b0-33c1-11d1-abe1-00a0c905f375),
pointer_default(unique)
]
interface IFilterMapper2 : IUnknown {
    import "unknwn.idl";

    // create or rename ActiveMovie category
    HRESULT CreateCategory
        ( [in] REFCLSID clsidCategory,
          [in] DWORD dwCategoryMerit,
          [in] LPCWSTR Description
          );

    HRESULT UnregisterFilter
        ( [in] const CLSID *pclsidCategory,
          [in] const OLECHAR *szInstance,
          [in] REFCLSID Filter // GUID of filter
        );

    // Register a filter, pins, and media types under a category.
    HRESULT RegisterFilter
        ( [in] REFCLSID clsidFilter,     // GUID of the filter
          [in] LPCWSTR Name,             // Descriptive name for the filter

          // ppMoniker can be null. or *ppMoniker can contain the
          // moniker where this filter data will be written;
          // *ppMoniker will be set to null on return. or *ppMoniker
          // can be null in which case the moniker will be returned
          // with refcount.
          [in, out] IMoniker **ppMoniker,

          // can be null
          [in] const CLSID *pclsidCategory,

          // cannot be null
          [in] const OLECHAR *szInstance,

          // rest of filter and pin registration
          [in] const REGFILTER2 *prf2
        );

    // Set *ppEnum to be an enumerator for filters matching the
    // requirements.
    HRESULT EnumMatchingFilters
       ( [out] IEnumMoniker **ppEnum           // enumerator returned
       , [in]  DWORD dwFlags                   // 0
       , [in]  BOOL bExactMatch                // don't match wildcards
       , [in]  DWORD dwMerit                   // at least this merit needed
       , [in]  BOOL  bInputNeeded              // need at least one input pin
       , [in]  DWORD cInputTypes               // Number of input types to match
                                               // Any match is OK
       , [size_is(cInputTypes*2)]  const GUID *pInputTypes // input major+subtype pair array
       , [in]  const REGPINMEDIUM *pMedIn      // input medium
       , [in]  const CLSID *pPinCategoryIn     // input pin category
       , [in]  BOOL  bRender                   // must the input be rendered?
       , [in]  BOOL  bOutputNeeded             // need at least one output pin
       , [in]  DWORD cOutputTypes              // Number of output types to match
                                               // Any match is OK
       , [size_is(cOutputTypes*2)]  const GUID *pOutputTypes // output major+subtype pair array
       , [in]  const REGPINMEDIUM *pMedOut     // output medium
       , [in]  const CLSID *pPinCategoryOut    // output pin category
       );
}

[
object,
uuid(b79bb0b1-33c1-11d1-abe1-00a0c905f375),
pointer_default(unique)
]
interface IFilterMapper3 : IFilterMapper2 {
    // new interface to allow creating filters using the mapper's devenum instance
    // primarily needed for out-of-proc access to a graph
    HRESULT GetICreateDevEnum( [out] ICreateDevEnum **ppEnum );
}

//========================================================================
//========================================================================
// Defines IQualityControl interface
//
// Defines quality messages and allows a quality manager to install itself
// as the sink for quality messages.
//========================================================================
//========================================================================

typedef enum tagQualityMessageType {
    Famine,
    Flood
} QualityMessageType;

typedef struct tagQuality {
    QualityMessageType Type;
    long                Proportion;   // milli-units.  1000 = no change
                            // for Flood:
                            // What proportion of the media samples currently
                            // coming through are required in the future.
                            // 800 means please drop another 20%
                            // For Famine:
                            // How much to "keep in" e.g. 800 means send me
                            // 20% less e.g. by dropping 20% of the samples.
                            // 1100 would mean "I'm coping, send me more".
    REFERENCE_TIME       Late;
                            // How much you need to catch up by
    REFERENCE_TIME       TimeStamp;
                            // The stream time when this was generated (probably
                            // corresponds to the start time on some sample).
} Quality;

typedef IQualityControl *PQUALITYCONTROL;


[
object,
uuid(56a868a5-0ad4-11ce-b03a-0020af0ba770),
pointer_default(unique)
]
interface IQualityControl : IUnknown {

    // Notify the recipient that a quality change is requested.
    // pSelf is the IBaseFilter* of the sender.
    // this is sent from a filter
    // to (the quality manager or) an upstream peer.
    HRESULT Notify
        ( [in] IBaseFilter * pSelf,
          [in] Quality q
        );

    // Notify the recipient that future quality messages are to be sent
    // to iqc.  If piqc is NULL then quality messages are to default back to
    // the upstream peer.
    // This is sent from the quality manager to a filter.
    // The recipient should hold piqc as a WEAK reference,
    // i.e. do not AddRef it, do not Release it.
    HRESULT SetSink
        ( [in] IQualityControl * piqc
        );
}

//=====================================================================
//=====================================================================
// Definitions required for overlay transport
//=====================================================================
//=====================================================================


// Used to communicate the colour that the IOverlay client wants the window
// painted in so that it can draw directly to the correct clipping region
// A colour key can be described in two alternate ways, the first is by a
// range of one or more (system) palette indices. The second is by defining
// a colour cube with two RGB values, any of which would be acceptable.
//
// The CK values are consistent with GDI PALETTEINDEX and PALETTERGB macros


enum { CK_NOCOLORKEY = 0x0,     // No color key is required
       CK_INDEX       = 0x1,    // Index into the current system palette
       CK_RGB         = 0x2 };  // Color key is an RGB value (or range)

typedef struct tagCOLORKEY {

    DWORD    KeyType;           // Explains meaning of the structure
    DWORD    PaletteIndex;      // Palette index if available
    COLORREF LowColorValue;     // Low colour space RGB value
    COLORREF HighColorValue;    // Defines the high RGB value

} COLORKEY;

// When a filter sets up an advise link it can ask that only certain types
// of notifications be sent, for example just palette changes. While this
// doesn't mean that the other notification call backs won't ever be called
// the IOverlay implementation may use this as an efficiency optimisation

enum { ADVISE_NONE = 0x0,               // No notifications required
       ADVISE_CLIPPING = 0x1,           // Synchronous clip information
       ADVISE_PALETTE = 0x2,            // Palette change notifications
       ADVISE_COLORKEY = 0x4,           // Called when colour key changes
       ADVISE_POSITION = 0x8,           // Likewise when window moves etc
       ADVISE_DISPLAY_CHANGE = 0x10     // Called on WM_DISPLAYCHANGE
     };

const DWORD ADVISE_ALL = ADVISE_CLIPPING |
                         ADVISE_PALETTE |
                         ADVISE_COLORKEY |
                         ADVISE_POSITION;

const DWORD ADVISE_ALL2 = ADVISE_ALL |
                          ADVISE_DISPLAY_CHANGE;

// This isn't defined when you run IDL

cpp_quote("#ifndef _WINGDI_")

typedef struct _RGNDATAHEADER {
    DWORD dwSize;
    DWORD iType;
    DWORD nCount;
    DWORD nRgnSize;
    RECT  rcBound;
} RGNDATAHEADER;

typedef struct _RGNDATA {
    RGNDATAHEADER rdh;
    char Buffer[1];
} RGNDATA;

cpp_quote("#endif")


//=====================================================================
//=====================================================================
// Defines IOverlayNotify interface
//
// This interface gives asynchronous notifications of changes to the
// rendering window - such as changes to the exposed window area
//=====================================================================
//=====================================================================

[
object,
local,
uuid(56a868a0-0ad4-11ce-b03a-0020af0ba770),
pointer_default(unique)
]
interface IOverlayNotify : IUnknown {

    // IOverlayNotify methods

    // This notifies the filter of palette changes, the filter should copy
    // the array of RGBQUADs if it needs to use them after returning. This
    // is not called when the palette is actually changed in the display
    // but at a short time after (in sync with WM_PALETTECHANGED messages)

    HRESULT OnPaletteChange(
        [in] DWORD dwColors,                // Number of colours present
        [in] const PALETTEENTRY *pPalette); // Array of palette colours

    // This provides synchronous clip changes so that the client is called
    // before the window is moved to freeze the video, and then when the
    // window has stabilised it is called again to start playback again.
    // If the window rect is all zero then the window is invisible, the
    // filter must take a copy of the information if it wants to keep it

    HRESULT OnClipChange(
        [in] const RECT *pSourceRect,       // Region of video to use
        [in] const RECT *pDestinationRect,  // Where video goes
        [in] const RGNDATA *pRgnData);      // Defines clipping information

    HRESULT OnColorKeyChange([in] const COLORKEY *pColorKey);

    // The calls to OnClipChange happen in sync with the window. So it is
    // called with an empty clip list before the window moves to freeze
    // the video, and then when the window has stabilised it is called
    // again with the new clip list. The OnPositionChange callback is for
    // overlay cards that don't want the expense of synchronous clipping
    // updates and just want to know when the source or destination video
    // positions change. They will NOT be called in sync with the window
    // but at some point after the window has changed (basicly in time
    // with WM_SIZE etc messages received). This is therefore suitable
    // for overlay cards that don't inlay their data to the frame buffer
    // NOTE the destination is NOT clipped to the visible display area

    HRESULT OnPositionChange([in] const RECT *pSourceRect,
                             [in] const RECT *pDestinationRect);
}

typedef IOverlayNotify *POVERLAYNOTIFY;


//=====================================================================
//=====================================================================
// Defines IOverlayNotify2 interface
//
// This interface gives asynchronous notifications of changes to the
// rendering window - such as changes to the exposed window area
// This is optionally supported by the advise sink for the purposes
// of accepting OnDisplayChange notification.
//=====================================================================
//=====================================================================

cpp_quote("#if !defined(HMONITOR_DECLARED) && !defined(HMONITOR) && (WINVER < 0x0500)")
cpp_quote("#define HMONITOR_DECLARED")
cpp_quote("#if 0")
typedef HANDLE HMONITOR;
cpp_quote("#endif")
cpp_quote("DECLARE_HANDLE(HMONITOR);")
cpp_quote("#endif")

[
object,
local,
uuid(680EFA10-D535-11D1-87C8-00A0C9223196),
pointer_default(unique)
]
interface IOverlayNotify2 : IOverlayNotify {

    // IOverlayNotify2 methods

    HRESULT OnDisplayChange(    // ADVISE_DISPLAY_CHANGE
        HMONITOR hMonitor);
}

typedef IOverlayNotify2 *POVERLAYNOTIFY2;


//=====================================================================
//=====================================================================
// Defines IOverlay interface
//
// This interface provides information so that a filter can write direct to
// the frame buffer while placing the video in the correct window position
//=====================================================================
//=====================================================================

[
object,
local,
uuid(56a868a1-0ad4-11ce-b03a-0020af0ba770),
pointer_default(unique)
]
interface IOverlay : IUnknown {

    // IOverlay methods

    HRESULT GetPalette(
        [out] DWORD *pdwColors,              // Number of colours present
        [out] PALETTEENTRY **ppPalette);     // Where to put palette data

    HRESULT SetPalette(
        [in] DWORD dwColors,                 // Number of colours present
        [in] PALETTEENTRY *pPalette);        // Colours to use for palette

    // If you change the colour key through SetColorKey then all the advise
    // links will receive an OnColorKeyChange callback with the new colour

    HRESULT GetDefaultColorKey([out] COLORKEY *pColorKey);
    HRESULT GetColorKey([out] COLORKEY *pColorKey);
    HRESULT SetColorKey([in,out] COLORKEY *pColorKey);
    HRESULT GetWindowHandle([out] HWND *pHwnd);

    // The IOverlay implementation allocates the memory for the clipping
    // rectangles as it can be variable in length. The filter calling
    // this method should free the memory when it is finished with it

    HRESULT GetClipList([out] RECT *pSourceRect,
                        [out] RECT *pDestinationRect,
                        [out] RGNDATA **ppRgnData);

    // Returns the current video source and destination

    HRESULT GetVideoPosition([out] RECT *pSourceRect,
                             [out] RECT *pDestinationRect);

    HRESULT Advise(
        [in] IOverlayNotify *pOverlayNotify, // Notification interface
        [in] DWORD dwInterests);             // Callbacks interested in

    HRESULT Unadvise();                      // Stop the callbacks now
}

typedef IOverlay *POVERLAY;


//=====================================================================
//=====================================================================
// control related interfaces (others are defined in control.odl)
//=====================================================================
//=====================================================================


//=====================================================================
//=====================================================================
// Defines IMediaEventSink interface
//
// Exposed by filtergraph. Called by filters to notify events. Will be
// passed on to application by the IMediaControl event methods.
//=====================================================================
//=====================================================================

[
        object,
        uuid(56a868a2-0ad4-11ce-b03a-0020af0ba770),
        pointer_default(unique)
]
interface IMediaEventSink : IUnknown {

    // notify an event. will be queued, but not delivered to
    // the application on this thread.
    HRESULT Notify(
        [in] long EventCode,
        [in] LONG_PTR EventParam1,
        [in] LONG_PTR EventParam2
    );
}

typedef IMediaEventSink *PMEDIAEVENTSINK;

//=====================================================================
//=====================================================================
// Defines IFileSourceFilter interface
//
// Exposed by source filters to set the file name and media type.
//=====================================================================
//=====================================================================

[
        object,
        uuid(56a868a6-0ad4-11ce-b03a-0020af0ba770),
        pointer_default(unique)
]
interface IFileSourceFilter : IUnknown {

    // Load a file and assign it the given media type
    HRESULT Load(
        [in] LPCOLESTR pszFileName,     // Pointer to absolute path of file to open
        [in, unique] const AM_MEDIA_TYPE *pmt   // Media type of file - can be NULL
    );
    // Get the currently loaded file name
    HRESULT GetCurFile(
        [out] LPOLESTR *ppszFileName,   // Pointer to the path for the current file
        [out] AM_MEDIA_TYPE *pmt        // Pointer to the media type
    );
}

typedef IFileSourceFilter *PFILTERFILESOURCE;

//=====================================================================
//=====================================================================
// Defines IFileSinkFilter interface
//
// Exposed by renderers to set the output file name.
//=====================================================================
//=====================================================================

[
        object,
        uuid(a2104830-7c70-11cf-8bce-00aa00a3f1a6),
        pointer_default(unique)
]
interface IFileSinkFilter : IUnknown {

    // Output to this file. default is to open the existing file
    HRESULT SetFileName(
        [in] LPCOLESTR pszFileName,     // Pointer to absolute path of output file
        [in, unique] const AM_MEDIA_TYPE *pmt   // Media type of file - can be NULL
    );
    // Get the current file name
    HRESULT GetCurFile(
        [out] LPOLESTR *ppszFileName,   // Pointer to the path for the current file
        [out] AM_MEDIA_TYPE *pmt        // Pointer to the media type
    );
}

typedef IFileSinkFilter *PFILTERFILESINK;

[
        object,
        uuid(00855B90-CE1B-11d0-BD4F-00A0C911CE86),
        pointer_default(unique)
]
interface IFileSinkFilter2 : IFileSinkFilter {

    HRESULT SetMode(
        [in] DWORD dwFlags              // AM_FILESINK_FLAGS
    );

    HRESULT GetMode(
        [out] DWORD *pdwFlags           // AM_FILESINK_FLAGS
    );
}

typedef IFileSinkFilter2 *PFILESINKFILTER2;

typedef enum {

    // create a new file
    AM_FILE_OVERWRITE = 0x00000001,

} AM_FILESINK_FLAGS;


//
// Intelligent connectivity for filters - an interface supported by
// filter graphs (since it is an extension to IFilterGraph) that supports
// building of graphs by automatic selection and connection of appropriate
// filters

[
    object,
    uuid(56a868a9-0ad4-11ce-b03a-0020af0ba770),
    pointer_default(unique)
]
interface IGraphBuilder : IFilterGraph {
    // Connect these two pins directly or indirectly, using transform filters
    // if necessary.

    HRESULT Connect
        ( [in] IPin * ppinOut,    // the output pin
          [in] IPin * ppinIn      // the input pin
        );


    // Connect this output pin directly or indirectly, using transform filters
    // if necessary to something that will render it.

    HRESULT Render
        ( [in] IPin * ppinOut     // the output pin
        );


    // Build a filter graph that will render this file using this play list.
    // If lpwstrPlayList is NULL then it will use the default play list
    // which will typically render the whole file.

    HRESULT RenderFile
        ( [in] LPCWSTR lpcwstrFile,
          [in, unique] LPCWSTR lpcwstrPlayList
        );


    // Add to the filter graph a source filter for this file.  This would
    // be the same source filter that would be added by calling Render.
    // This call gives you more control over building
    // the rest of the graph, e.g. AddFilter(<a renderer of your choice>)
    // and then Connect the two.
    // The IBaseFilter* interface exposed by the source filter is returned
    // in ppFilter, addrefed already for you
    // The filter will be known by the name lpcwstrFIlterName
    // nn this filter graph,
    HRESULT AddSourceFilter
        ( [in]      LPCWSTR lpcwstrFileName,
          [in, unique]      LPCWSTR lpcwstrFilterName,
          [out]     IBaseFilter* *ppFilter
        );


    // If this call is made then trace information will be written to the
    // file showing the actions taken in attempting to perform an operation.
    HRESULT SetLogFile
        ( [in]      DWORD_PTR hFile  // open file handle e.g. from CreateFile
        );


    // Request that the graph builder should return as soon as possible from
    // its current task.
    // Note that it is possible fot the following to occur in the following
    // sequence:
    //     Operation begins; Abort is requested; Operation completes normally.
    // This would be normal whenever the quickest way to finish an operation
    // was to simply continue to the end.
    HRESULT Abort();

    // Return S_OK if the curent operation is to continue,
    // return S_FALSE if the current operation is to be aborted.
    // This method can be called as a callback from a filter which is doing
    // some operation at the request of the graph.
    HRESULT ShouldOperationContinue();

}


//
// New capture graph builder

[
    object,
    uuid(bf87b6e0-8c27-11d0-b3f0-00aa003761c5),
    pointer_default(unique)
]
interface ICaptureGraphBuilder : IUnknown {

    // Use this filtergraph
    HRESULT SetFiltergraph(
    [in] IGraphBuilder *pfg);

    // what filtergraph are you using?
    // *ppfg->Release() when you're done with it
    HRESULT GetFiltergraph(
    [out] IGraphBuilder **ppfg);

    // creates a rendering section in the filtergraph consisting of a MUX
    // of some filetype, and a file writer (and connects them together)
    // *ppf->Release() when you're done with it
    // *ppSink->Release() when you're done with it
    HRESULT SetOutputFileName(
    [in] const GUID *pType,    // type of file to write, eg. MEDIASUBTYPE_Avi
    [in] LPCOLESTR lpstrFile,    // filename given to file writer
    [out] IBaseFilter **ppf,    // returns pointer to the MUX
        [out] IFileSinkFilter **ppSink);// queried from file writer

    // Looks for an interface on the filter and on the output pin of the given
    // category.  (Categories: CAPTURE/PREVIEW/VIDEOPORT/VBI etc. or
    // NULL for "don't care".
    // It will also look upstream and downstream of
    // the pin for the interface, to find interfaces on renderers, MUXES, TV
    // Tuners, etc.
    // Call *ppint->Release() when you're done with it
    [local] HRESULT FindInterface(
    [in, unique] const GUID *pCategory,    // can be NULL for all pins
    [in] IBaseFilter *pf,
    [in] REFIID riid,
    [out] void **ppint);
    [call_as(FindInterface)] HRESULT RemoteFindInterface(
    [in, unique] const GUID *pCategory,    // can be NULL for all pins
    [in] IBaseFilter *pf,
    [in] REFIID riid,
    [out] IUnknown **ppint);

    // Connects the pin of the given category of the source filter to the
    // rendering filter, optionally through another filter (compressor?)
    // For a non-NULL category, it will instantiate and connect additional
    // required filters upstream too, like TV Tuners and Crossbars.
    // If there is only one output pin on the source, use a NULL
    // category.  You can also have pSource be a pin
    HRESULT RenderStream(
    [in] const GUID *pCategory,    // can be NULL if only one output pin
    [in] IUnknown *pSource,        // filter or pin
    [in] IBaseFilter *pfCompressor,
    [in] IBaseFilter *pfRenderer);    // can be NULL

    // Sends IAMStreamControl messages to the pin of the desired category, eg.
    // "capture" or "preview"
    // REFERENCE_TIME=NULL means NOW
    // REFERENCE_TIME=MAX_TIME means never, or cancel previous request
    // NULL controls all capture filters in the graph - you will get one
    //     notification for each filter with a pin of that category found
    // returns S_FALSE if stop will be signalled before last sample is
    //     rendered.
    // return a FAILURE code if the filter does not support IAMStreamControl
    HRESULT ControlStream(
    [in] const GUID *pCategory,
    [in] IBaseFilter *pFilter,
    [in] REFERENCE_TIME *pstart,
    [in] REFERENCE_TIME *pstop,
    [in] WORD wStartCookie,        // high word reserved
    [in] WORD wStopCookie);        // high word reserved

    // creates a pre-allocated file of a given size in bytes
    HRESULT AllocCapFile(
    [in] LPCOLESTR lpstr,
    [in] DWORDLONG dwlSize);

    // Copies the valid file data out of the old, possibly huge old capture
    //   file into a shorter new file.
    // Return S_FALSE from your progress function to abort capture, S_OK to
    //   continue
    HRESULT CopyCaptureFile(
    [in] LPOLESTR lpwstrOld,
    [in] LPOLESTR lpwstrNew,
    [in] int fAllowEscAbort,    // pressing ESC will abort?
    [in] IAMCopyCaptureFileProgress *pCallback);    // implement this to
                            // get progress
}


//
// Capture graph builder "CopyCapturedFile" progress callback

[
    object,
    uuid(670d1d20-a068-11d0-b3f0-00aa003761c5),
    pointer_default(unique)
]
interface IAMCopyCaptureFileProgress : IUnknown {

    // If you support this interface somewhere, this function will be called
    // periodically while ICaptureGraphBuilder::CopyCaptureFile is executing
    // to let you know the progress
    //
    // Return S_OK from this function to continue.  Return S_FALSE to abort the
    // copy
    HRESULT Progress(
    [in] int iProgress);        // a number between 0 and 100 (%)
}


//
// Capture graph builder that can deal with a single filter having more than
// one pin of each category... some new devices can capture both audio and
// video, for example
//

[
    object,
    uuid(93E5A4E0-2D50-11d2-ABFA-00A0C9C6E38D),
    pointer_default(unique)
]
interface ICaptureGraphBuilder2 : IUnknown {

    // Use this filtergraph
    HRESULT SetFiltergraph(
    [in] IGraphBuilder *pfg);

    // what filtergraph are you using?
    // *ppfg->Release() when you're done with it
    HRESULT GetFiltergraph(
    [out] IGraphBuilder **ppfg);

    // creates a rendering section in the filtergraph consisting of a MUX
    // of some filetype, and a file writer (and connects them together)
    // *ppf->Release() when you're done with it
    // *ppSink->Release() when you're done with it
    HRESULT SetOutputFileName(
    [in] const GUID *pType,        // GUID of MUX filter to use
    [in] LPCOLESTR lpstrFile,    // filename given to file writer
    [out] IBaseFilter **ppf,    // returns pointer to the MUX
        [out] IFileSinkFilter **ppSink);// queried from file writer

    // Looks for an interface on the filter and on the output pin of the given
    // category and type.  (Categories: CAPTURE/PREVIEW/VIDEOPORT/VBI etc. or
    // NULL for "don't care".  Type:  MAJORTYPE_Video/Audio etc or NULL)
    // !!! Will some filters have >1 capture pin?  ie RGB and MPEG?
    // It will also look upstream and downstream of
    // the pin for the interface, to find interfaces on renderers, MUXES, TV
    // Tuners, etc.
    // Call *ppint->Release() when you're done with it
    [local] HRESULT FindInterface(
    [in] const GUID *pCategory,    // can be NULL for all pins
    [in] const GUID *pType,        // Audio/Video/??? or NULL (don't care)
    [in] IBaseFilter *pf,
    [in] REFIID riid,
    [out] void **ppint);
    [call_as(FindInterface)] HRESULT RemoteFindInterface(
    [in] const GUID *pCategory,    // can be NULL for all pins
    [in] const GUID *pType,        // Audio/Video/??? or NULL (don't care)
    [in] IBaseFilter *pf,
    [in] REFIID riid,
    [out] IUnknown **ppint);

    // Connects the pin of the given category and type of the source filter to
    // the rendering filter, optionally through another filter (compressor?)
    // (Type is a Majortype, like Video or Audio)
    // For a non-NULL category, it will instantiate and connect additional
    // required filters upstream too, like TV Tuners and Crossbars.
    // If there is only one output pin on the source, use a NULL category
    // and type.  You can also have pSource be a pin
    HRESULT RenderStream(
    [in] const GUID *pCategory,    // can be NULL if only one output pin
    [in] const GUID *pType,        // Major type (Video/Audio/etc)
    [in] IUnknown *pSource,        // filter or pin
    [in] IBaseFilter *pfCompressor,
    [in] IBaseFilter *pfRenderer);    // can be NULL

    // Sends IAMStreamControl messages to the pin of the desired category,
    // (eg. "capture" or "preview") and of the desired type (eg. VIDEO or AUDIO)
    // A category MUST be given.  If a filter is given, a type must be too.
    // REFERENCE_TIME=NULL means NOW
    // REFERENCE_TIME=MAX_TIME means never, or cancel previous request
    // NULL controls all capture filters in the graph - you will get one
    //     notification for each filter with a pin of that category found
    // returns S_FALSE if stop will be signalled before last sample is
    //     rendered.
    // return a FAILURE code if the filter does not support IAMStreamControl
    HRESULT ControlStream(
    [in] const GUID *pCategory,
    [in] const GUID *pType,        // Major type (Video/Audio/etc)
    [in] IBaseFilter *pFilter,
    [in] REFERENCE_TIME *pstart,
    [in] REFERENCE_TIME *pstop,
    [in] WORD wStartCookie,        // high word reserved
    [in] WORD wStopCookie);        // high word reserved

    // creates a pre-allocated file of a given size in bytes
    HRESULT AllocCapFile(
    [in] LPCOLESTR lpstr,
    [in] DWORDLONG dwlSize);

    // Copies the valid file data out of the old, possibly huge old capture
    //   file into a shorter new file.
    // Return S_FALSE from your progress function to abort capture, S_OK to
    //   continue
    HRESULT CopyCaptureFile(
    [in] LPOLESTR lpwstrOld,
    [in] LPOLESTR lpwstrNew,
    [in] int fAllowEscAbort,    // pressing ESC will abort?
    [in] IAMCopyCaptureFileProgress *pCallback);    // implement this to
                            // get progress
    // Helper fn to find a certain pin on a filter.
    HRESULT FindPin(
    [in] IUnknown *pSource,
    [in] PIN_DIRECTION pindir,    // input or output?
    [in] const GUID *pCategory,    // what category? (or NULL)
    [in] const GUID *pType,        // what Major type (or NULL)
    [in] BOOL fUnconnected,        // must it be unconnected?
    [in] int num,            // which pin matching this? (0 based)
    [out] IPin **ppPin);
}

enum _AM_RENSDEREXFLAGS {
    AM_RENDEREX_RENDERTOEXISTINGRENDERERS = 0x01 // Dont add any renderers
};

//
// IFilterGraph2
//
// New methods on for IFilterGraph and IGraphBuilder will have to go here.
//

[
    object,
    uuid(36b73882-c2c8-11cf-8b46-00805f6cef60),
    pointer_default(unique)
]
interface IFilterGraph2: IGraphBuilder {

    // Add a Moniker source moniker
    HRESULT AddSourceFilterForMoniker(
          [in] IMoniker *pMoniker,
          [in] IBindCtx *pCtx,
          [in, unique] LPCWSTR lpcwstrFilterName,
          [out] IBaseFilter **ppFilter
    );

    // Specify the type for a reconnect
    // This is better than Reconnect as sometime the parties to a
    // reconnection can't remember what type they'd agreed (!)
    HRESULT ReconnectEx
        ( [in] IPin * ppin,             // the pin to disconnect and reconnect
          [in, unique] const AM_MEDIA_TYPE *pmt // the type to reconnect with - can be NULL
        );

    // Render a pin without adding any new renderers
    HRESULT RenderEx( [in] IPin *pPinOut,         // Pin to render
                      [in] DWORD dwFlags,         // flags
                      [in, out] DWORD *pvContext   // Unused - set to NULL
                    );

#if 0
    // Method looks for a filter which supports the specified interface.  If such
    // a filter exists, an AddRef()'ed pointer to the requested interface is placed
    // in *ppInterface.
    //
    // *ppInterface will be NULL on return if such a filter could not be found, and
    // the method will return E_NOINTERFACE.
    //
    // pdwIndex is an internal index that is used for obtaining subsequent interfaces.
    // *pdwIndex should be initialized to zero.  It is set on return to a value that
    // allows the implementation of FindFilterInterface to search for further interfaces
    // if called again.  If no more such interfaces exist, the method will return E_NOINTERFACE.
    //
    // If pdwIndex is NULL, FindFilterInterface returns an interface only if there is just
    // a single filter in the graph that supports the interface.  Otherwise it returns
    // E_NOINTERFACE.
    //
    HRESULT FindFilterInterface( [in] REFIID iid, [out] void ** ppInterface, [in,out] LPDWORD pdwIndex );

    // Tries to obtain the interface from the filter graph itself.  If this fails,
    // it attempts to find the unique filter that supports the interface.
    // On failure the method will return E_NOINTERFACE.  On success, it returns
    // S_OK and an AddRef()'ed pointer to the requested interface in *ppInterface.
    //
    HRESULT FindInterface( [in] REFIID iid, [out] void ** ppInterface );

#endif
}

//
// StreamBuilder
// aka Graph building with constraints
// aka convergent graphs
// aka Closed captioning

[
    object,
    local,
    uuid(56a868bf-0ad4-11ce-b03a-0020af0ba770),
    pointer_default(unique)
]
interface IStreamBuilder : IUnknown {

    // Connect this output pin directly or indirectly, using transform filters
    // if necessary to thing(s) that will render it, within this graph
    // Move from Initial state to Rendered state.

    HRESULT Render
        ( [in] IPin * ppinOut,         // the output pin
          [in] IGraphBuilder * pGraph  // the graph
        );

    // Undo what you did in Render.  Return to Initial state.
    HRESULT Backout
        ( [in] IPin * ppinOut,         // the output pin
          [in] IGraphBuilder * pGraph  // the graph
        );
}


// async reader interface - supported by file source filters. Allows
// multiple overlapped reads from different positions


[
        object,
        uuid(56a868aa-0ad4-11ce-b03a-0020af0ba770),
        pointer_default(unique)
]
interface IAsyncReader : IUnknown
{
    // pass in your preferred allocator and your preferred properties.
    // method returns the actual allocator to be used. Call GetProperties
    // on returned allocator to learn alignment and prefix etc chosen.
    // this allocator will be not be committed and decommitted by
    // the async reader, only by the consumer.
    // Must call this before calling Request.
    HRESULT RequestAllocator(
                [in]  IMemAllocator* pPreferred,
                [in]  ALLOCATOR_PROPERTIES* pProps,
                [out] IMemAllocator ** ppActual);

    // queue a request for data.
    // media sample start and stop times contain the requested absolute
    // byte position (start inclusive, stop exclusive).
    // may fail if sample not obtained from agreed allocator.
    // may fail if start/stop position does not match agreed alignment.
    // samples allocated from source pin's allocator may fail
    // GetPointer until after returning from WaitForNext.
    // Stop position must be aligned - this means it may exceed duration.
    // on completion, stop position will be corrected to unaligned
    // actual data.
    HRESULT Request(
                [in] IMediaSample* pSample,
                [in] DWORD_PTR dwUser);            // user context

    // block until the next sample is completed or the timeout occurs.
    // timeout (millisecs) may be 0 or INFINITE. Samples may not
    // be delivered in order. If there is a read error of any sort, a
    // notification will already have been sent by the source filter,
    // and HRESULT will be an error.
    // If ppSample is not null, then a Request completed with the result
    // code returned.
    HRESULT WaitForNext(
                [in]  DWORD dwTimeout,
                [out] IMediaSample** ppSample,  // completed sample
                [out] DWORD_PTR * pdwUser);        // user context

    // sync read of data. Sample passed in must have been acquired from
    // the agreed allocator. Start and stop position must be aligned.
    // equivalent to a Request/WaitForNext pair, but may avoid the
    // need for a thread on the source filter.
    HRESULT SyncReadAligned(
                [in] IMediaSample* pSample);


    // sync read. works in stopped state as well as run state.
    // need not be aligned. Will fail if read is beyond actual total
    // length.
    HRESULT SyncRead(
                [in]  LONGLONG llPosition,    // absolute file position
                [in]  LONG lLength,        // nr bytes required
                [out, size_is(lLength)]
              BYTE* pBuffer);        // write data here

    // return total length of stream, and currently available length.
    // reads for beyond the available length but within the total length will
    // normally succeed but may block for a long period.
    HRESULT Length(
                [out] LONGLONG* pTotal,
                [out] LONGLONG* pAvailable);

    // cause all outstanding reads to return, possibly with a failure code
    //(VFW_E_TIMEOUT) indicating they were cancelled.
    // Between BeginFlush and EndFlush calls, Request calls will fail and
    // WaitForNext calls will always complete immediately.
    HRESULT BeginFlush(void);
    HRESULT EndFlush(void);
}


// interface provided by the filtergraph itself to let other objects
// (especially plug-in distributors, but also apps like graphedt) know
// when the graph has changed.
[
    object,
    uuid(56a868ab-0ad4-11ce-b03a-0020af0ba770),
    pointer_default(unique)
]
interface IGraphVersion : IUnknown
{
    // returns the current graph version number
    // this is incremented every time there is a change in the
    // set of filters in the graph or in their connections
    //
    // if this is changed since your last enumeration, then re-enumerate
    // the graph
    HRESULT QueryVersion(LONG* pVersion);
}




//
// interface describing an object that uses resources.
//
// implement if: you request resources using IResourceManager. You will
// need to pass your implementation of this pointer as an in param.
//
// use if: you are a resource manager who implements IResourceManager
[
    object,
    uuid(56a868ad-0ad4-11ce-b03a-0020af0ba770),
    pointer_default(unique)
]
interface IResourceConsumer : IUnknown
{
    // you may acquire the resource specified.
    // return values:
    //      S_OK    -- I have successfully acquired it
    //      S_FALSE -- I will acquire it and call NotifyAcquire afterwards
    //      VFW_S_NOT_NEEDED: I no longer need the resource
    //      FAILED(hr)-I tried to acquire it and failed.

    HRESULT
    AcquireResource(
        [in] LONG idResource);



    // Please release the resource.
    // return values:
    //      S_OK    -- I have released it (and want it again when available)
    //      S_FALSE -- I will call NotifyRelease when I have released it
    //      other   something went wrong.
    HRESULT
    ReleaseResource(
        [in] LONG idResource);
}



// interface describing a resource manager that will resolve contention for
// named resources.
//
// implement if: you are a resource manager. The filtergraph will be a resource
// manager, internally delegating to the system wide resource manager
// (when there is one)
//
// use if: you need resources that are limited. Use the resource manager to
// resolve contention by registering the resource with this interface,
// and requesting it from this interface whenever needed.
//
// or use if: you detect focus changes which should affect resource usage.
// Notifying change of focus to the resource manager will cause the resource
// manager to switch contended resources to the objects that have the user's
// focus
[
    object,
    uuid(56a868ac-0ad4-11ce-b03a-0020af0ba770),
    pointer_default(unique)
]
interface IResourceManager : IUnknown
{
    // tell the manager how many there are of a resource.
    // ok if already registered. will take new count. if new count
    // is lower, will de-allocate resources to new count.
    //
    // You get back a token that will be used in further calls.
    //
    // Passing a count of 0 will eliminate this resource. There is currently
    // no defined way to find the id without knowing the count.
    //
    HRESULT
    Register(
        [in] LPCWSTR pName,         // this named resource
        [in] LONG   cResource,      // has this many instances
        [out] LONG* plToken         // token placed here on return
        );

    HRESULT
    RegisterGroup(
        [in] LPCWSTR pName,         // this named resource group
        [in] LONG cResource,        // has this many resources
        [in, size_is(cResource)]
             LONG* palTokens,      // these are the contained resources
        [out] LONG* plToken        // group resource id put here on return
        );

    // request the use of a given, registered resource.
    // possible return values:
    //      S_OK == yes you can use it now
    //      S_FALSE == you will be called back when the resource is available
    //      other - there is an error.
    //
    // The priority of this request should be affected by the associated
    // focus object -- that is, when SetFocus is called for that focus
    // object (or a 'related' object) then my request should be put through.
    //
    // A filter should pass the filter's IUnknown here. The filtergraph
    // will match filters to the filtergraph, and will attempt to trace
    // filters to common source filters when checking focus objects.
    // The Focus object must be valid for the entire lifetime of the request
    // -- until you call CancelRequest or NotifyRelease(id, p, FALSE)
    HRESULT
    RequestResource(
        [in] LONG idResource,
        [in] IUnknown* pFocusObject,
        [in] IResourceConsumer* pConsumer
        );


    // notify the resource manager that an acquisition attempt completed.
    // Call this method after an AcquireResource method returned
    // S_FALSE to indicate asynchronous acquisition.
    // HR should be S_OK if the resource was successfully acquired, or a
    // failure code if the resource could not be acquired.
    HRESULT
    NotifyAcquire(
        [in] LONG idResource,
        [in] IResourceConsumer* pConsumer,
        [in] HRESULT hr);

    // Notify the resource manager that you have released a resource. Call
    // this in response to a ReleaseResource method, or when you have finished
    // with the resource. bStillWant should be TRUE if you still want the
    // resource when it is next available, or FALSE if you no longer want
    // the resource.
    HRESULT
    NotifyRelease(
        [in] LONG idResource,
        [in] IResourceConsumer* pConsumer,
        [in] BOOL bStillWant);

    // I don't currently have the resource, and I no longer need it.
    HRESULT
    CancelRequest(
        [in] LONG idResource,
        [in] IResourceConsumer* pConsumer);

    // Notify the resource manager that a given object has been given the
    // user's focus. In ActiveMovie, this will normally be a video renderer
    // whose window has received the focus. The filter graph will switch
    // contended resources to (in order):
    //      requests made with this same focus object
    //      requests whose focus object shares a common source with this
    //      requests whose focus object shares a common filter graph
    // After calling this, you *must* call ReleaseFocus before the IUnknown
    // becomes invalid, unless you can guarantee that another SetFocus
    // of a different object is done in the meantime. No addref is held.
    //
    // The resource manager will hold this pointer until replaced or cancelled,
    // and will use it to resolve resource contention. It will call
    // QueryInterface for IBaseFilter at least and if found will call methods on
    // that interface.
    HRESULT
    SetFocus(
        [in] IUnknown* pFocusObject);

    // Sets the focus to NULL if the current focus object is still
    // pFocusObject. Call this when
    // the focus object is about to be destroyed to ensure that no-one is
    // still referencing the object.
    HRESULT
    ReleaseFocus(
        [in] IUnknown* pFocusObject);



// !!! still need
//      -- app override (some form of SetPriority)
//      -- enumeration and description of resources

}


//
// Interface representing an object that can be notified about state
// and other changes within a filter graph. The filtergraph will call plug-in
// distributors that expose this optional interface so that they can
// respond to appropriate changes.
//
// Implement if: you are a plug-in distributor (your class id is found
// under HKCR\Interface\<IID>\Distributor= for some interface).
//
// Use if: you are the filtergraph.
[
    object,
    uuid(56a868af-0ad4-11ce-b03a-0020af0ba770),
    pointer_default(unique)
]
interface IDistributorNotify : IUnknown
{
    // called when graph is entering stop state. Called before
    // filters are stopped.
    HRESULT Stop(void);

    // called when graph is entering paused state, before filters are
    // notified
    HRESULT Pause(void);

    // called when graph is entering running state, before filters are
    // notified. tStart is the stream-time offset parameter that will be
    // given to each filter's IBaseFilter::Run method.
    HRESULT Run(REFERENCE_TIME tStart);

    // called when the graph's clock is changing, with the new clock. Addref
    // the clock if you hold it beyond this method. Called before
    // the filters are notified.
    HRESULT SetSyncSource(
        [in] IReferenceClock * pClock);

    // called when the set of filters or their connections has changed.
    // Called on every AddFilter, RemoveFilter or ConnectDirect (or anything
    // that will lead to one of these).
    // You don't need to rebuild your list of interesting filters at this point
    // but you should release any refcounts you hold on any filters that
    // have been removed.
    HRESULT NotifyGraphChange(void);
}

typedef enum {
    AM_STREAM_INFO_START_DEFINED = 0x00000001,
    AM_STREAM_INFO_STOP_DEFINED  = 0x00000002,
    AM_STREAM_INFO_DISCARDING    = 0x00000004,
    AM_STREAM_INFO_STOP_SEND_EXTRA = 0x00000010
} AM_STREAM_INFO_FLAGS;

//  Stream information
typedef struct {
    REFERENCE_TIME tStart;
    REFERENCE_TIME tStop;
    DWORD dwStartCookie;
    DWORD dwStopCookie;
    DWORD dwFlags;
} AM_STREAM_INFO;

//
// IAMStreamControl
//

[
    object,
    uuid(36b73881-c2c8-11cf-8b46-00805f6cef60),
    pointer_default(unique)
]
interface IAMStreamControl : IUnknown
{
    // The REFERENCE_TIME pointers may be null, which
    // indicates immediately.  If the pointer is non-NULL
    // and dwCookie is non-zero, then pins should send
    // EC_STREAM_CONTROL_STOPPED / EC_STREAM_CONTROL_STARTED
    // with an IPin pointer and the cookie, thus allowing
    // apps to tie the events back to their requests.
    // If either dwCookies is zero, or the pointer is null,
    // then no event is sent.

    // If you have a capture pin hooked up to a MUX input pin and they
    // both support IAMStreamControl, you'll want the MUX to signal the
    // stop so you know the last frame was written out.  In order for the
    // MUX to know it's finished, the capture pin will have to send one
    // extra sample after it was supposed to stop, so the MUX can trigger
    // off that.  So you would set bSendExtra to TRUE for the capture pin
    // Leave it FALSE in all other cases.

    HRESULT StartAt( [in] const REFERENCE_TIME * ptStart,
                     [in] DWORD dwCookie );
    HRESULT StopAt(  [in] const REFERENCE_TIME * ptStop,
                     [in] BOOL bSendExtra,
                     [in] DWORD dwCookie );
    HRESULT GetInfo( [out] AM_STREAM_INFO *pInfo);
}



//
// ISeekingPassThru
//

[
    object,
    uuid(36b73883-c2c8-11cf-8b46-00805f6cef60),
    pointer_default(unique)
]
interface ISeekingPassThru : IUnknown
{
    HRESULT Init(  [in] BOOL bSupportRendering,
                   [in] IPin *pPin);
}



//
// IAMStreamConfig - pin interface
//

// A capture filter or compression filter's output pin
// supports this interface - no matter what data type you produce.

// This interface can be used to set the output format of a pin (as an
// alternative to connecting the pin using a specific media type).
// After setting an output format, the pin will use that format
// the next time it connects to somebody, so you can just Render that
// pin and get a desired format without using Connect(CMediaType)
// Your pin should do that by ONLY OFFERING the media type set in SetFormat
// in its enumeration of media types, and no others.  This will ensure that
// that format is indeed used for connection (or at least offer it first).
// An application interested in enumerating accepted mediatypes may have to
// do so BEFORE calling SetFormat.

// But this interface's GetStreamCaps function can get more information
// about accepted media types than the traditional way of enumerating a pin's
// media types, so it should typically be used instead.
// GetStreamCaps gets information about the kinds of formats allowed... how
// it can stretch and crop, and the frame rate and data rates allowed (for
// video)

// VIDEO EXAMPLE
//
// GetStreamCaps returns a whole array of {MediaType, Capabilities}.
// Let's say your capture card supports JPEG anywhere between 160x120 and
// 320x240, and also the size 640x480.  Also, say it supports RGB24 at
// resolutions between 160x120 and 320x240 but only multiples of 8.  You would
// expose these properties by offering a media type of 320 x 240 JPEG
// (if that is your default or preferred size) coupled with
// capabilities saying minimum 160x120 and maximum 320x240 with granularity of
// 1.  The next pair you expose is a media type of 640x480 JPEG coupled with
// capabilities of min 640x480 max 640x480.  The third pair is media type
// 320x240 RGB24 with capabilities min 160x120 max 320x240 granularity 8.
// In this way you can expose almost every quirk your card might have.
// An application interested in knowing what compression formats you provide
// can get all the pairs and make a list of all the unique sub types of the
// media types.
//
// If a filter's output pin is connected with a media type that has rcSource
// and rcTarget not empty, it means the filter is being asked to stretch the
// rcSource sub-rectangle of its InputSize (the format of the input pin for
// a compressor, and the largest bitmap a capture filter can generate with
// every pixel unique) into the rcTarget sub-rectangle of its output format.
// For instance, if a video compressor has as input 160x120 RGB, and as output
// 320x240 MPEG with an rcSource of (10,10,20,20) and rcTarget of (0,0,100,100)
// this means the compressor is being asked to take a 10x10 piece of the 160x120
// RGB bitmap, and make it fill the top 100x100 area of a 320x240 bitmap,
// leaving the rest of the 320x240 bitmap untouched.
// A filter does not have to support this and can fail to connect with a
// media type where rcSource and rcTarget are not empty.
//
// Your output pin is connected to the next filter with a certain media
// type (either directly or using the media type passed by SetFormat),
// and you need to look at the AvgBytesPerSecond field of the format
// of that mediatype to see what data rate you are being asked to compress
// the video to, and use that data rate.  Using the number of frames per
// second in AvgTimePerFrame, you can figure out how many bytes each frame
// is supposed to be.  You can make it smaller, but NEVER EVER make a bigger
// data rate.  For a video compressor, your input pin's media type tells you
// the frame rate (use that AvgTimePerFrame).  For a capture filter, the
// output media type tells you, so use that AvgTimePerFrame.
//
// The cropping rectangle described below is the same as the rcSrc of the
// output pin's media type.
//
// The output rectangle described below is the same of the width and height
// of the BITMAPINFOHEADER of the media type of the output pin's media type


// AUDIO EXAMPLE
//
// This API can return an array of pairs of (media type, capabilities).
// This can be used to expose all kinds of wierd capabilities.  Let's say you
// do any PCM frequency from 11,025 to 44,100 at 8 or 16 bit mono or
// stereo, and you also do 48,000 16bit stereo as a special combination.
// You would expose 3 pairs.  The first pair would have Min Freq of 11025 and
// Max Freq of 44100, with MaxChannels=2 and MinBits=8 and MaxBits=8 for the
// capabilites structure, and a media type of anything you like, maybe
// 22kHz, 8bit stereo as a default.
// The 2nd pair would be the same except for MinBits=16 and MaxBits=16 in
// the capabilities structure and the media type could be something like
// 44kHz, 16bit stereo as a default (the media type in the pair should always
// be something legal as described by the capabilities structure... the
// structure tells you how you can change the media type to produce other
// legal media types... for instance changing 44kHz to 29010Hz would be legal,
// but changing bits from 16 to 14 would not be.)
// The 3rd pair would be MinFreq=48000 MaxFreq=48000 MaxChannels=2
// MinBits=16 and MaxBits=16, and the media type would be 48kHz 16bit stereo.
// You can also use the Granularity elements of the structure (like the example
// for video) if you support values that multiples of n, eg.  you could say
// minimum bits per sample 8, max 16, and granularity 8 to describe doing
// either 8 or 16 bit all in one structure
//
// If you support non-PCM formats, the media type returned in GetStreamCaps
// can show which non-PCM formats you support (with a default sample rate,
// bit rate and channels) and the capabilities structure going with that
// media type can describe which other sample rates, bit rates and channels
// you support.

[
    object,
    uuid(C6E13340-30AC-11d0-A18C-00A0C9118956),
    pointer_default(unique)
]
interface IAMStreamConfig : IUnknown
{

    // this is the structure returned by a VIDEO filter
    //
    typedef struct _VIDEO_STREAM_CONFIG_CAPS {

    GUID        guid;    // will be MEDIATYPE_Video

    // the logical or of all the AnalogVideoStandard's supported
    // typically zero if not supported
    ULONG        VideoStandard;

    // the inherent size of the incoming signal... taken from the input
    // pin for a compressor, or the largest size a capture filter can
    // digitize the signal with every pixel still unique
        SIZE        InputSize;

    // The input of a compressor filter may have to be connected for these
    // to be known

    // smallest rcSrc cropping rect allowed
        SIZE        MinCroppingSize;
    // largest rcSrc cropping rect allowed
        SIZE        MaxCroppingSize;
    // granularity of cropping size - eg only widths a multiple of 4 allowed
        int         CropGranularityX;
        int         CropGranularityY;
    // alignment of cropping rect - eg rect must start on multiple of 4
    int        CropAlignX;
    int        CropAlignY;

    // The input of a compressor filter may have to be connected for these
    // to be known

    // smallest bitmap this pin can produce
        SIZE        MinOutputSize;
    // largest bitmap this pin can produce
        SIZE        MaxOutputSize;
    // granularity of output bitmap size
        int         OutputGranularityX;
        int         OutputGranularityY;
    // !!! what about alignment of rcTarget inside BIH if different?

    // how well can you stretch in the x direction?  0==not at all
    // 1=pixel doubling 2=interpolation(2 taps) 3=better interpolation
    // etc.
    int        StretchTapsX;
    int        StretchTapsY;
    // how well can you shrink in the x direction?  0==not at all
    // 1=pixel doubling 2=interpolation(2 taps) 3=better interpolation
    // etc.
    int        ShrinkTapsX;
    int        ShrinkTapsY;

    // CAPTURE filter only - what frame rates are allowed?
        LONGLONG    MinFrameInterval;
        LONGLONG    MaxFrameInterval;

    // what data rates can this pin produce?
        LONG        MinBitsPerSecond;
        LONG        MaxBitsPerSecond;
    } VIDEO_STREAM_CONFIG_CAPS;


    // this is the structure returned by an AUDIO filter
    //
    typedef struct _AUDIO_STREAM_CONFIG_CAPS {

      GUID       guid;    // will be MEDIATYPE_Audio
    ULONG        MinimumChannels;
       ULONG      MaximumChannels;
    ULONG      ChannelsGranularity;
       ULONG      MinimumBitsPerSample;
       ULONG      MaximumBitsPerSample;
    ULONG      BitsPerSampleGranularity;
       ULONG      MinimumSampleFrequency;
       ULONG      MaximumSampleFrequency;
    ULONG      SampleFrequencyGranularity;
    } AUDIO_STREAM_CONFIG_CAPS;

    // - only allowed when pin is not streaming, else the call will FAIL
    // - If your output pin is not yet connected, and you can
    //   connect your output pin with this media type, you should
    //   succeed the call, and start offering it first (enumerate as format#0)
    //   from GetMediaType so that this format will be used to connect with
    //   when you do connect to somebody
    // - if your output pin is already connected, and you can provide this
    //   type, reconnect your pin.  If the other pin can't accept it, FAIL
    //   this call and leave your connection alone.
    HRESULT SetFormat(
            [in] AM_MEDIA_TYPE *pmt);

    // the format it's connected with, or will connect with
    // the application is responsible for calling DeleteMediaType(*ppmt);
    HRESULT GetFormat(
            [out] AM_MEDIA_TYPE **ppmt);

    // how many different Stream Caps structures are there?
    // also, how big is the stream caps structure?
    HRESULT GetNumberOfCapabilities(
            [out] int *piCount,
        [out] int *piSize);    // pSCC of GetStreamCaps needs to be this big

    // - gets one of the pairs of {Mediatype, Caps}
    // - return S_FALSE if iIndex is too high
    // - the application is responsible for calling DeleteMediaType(*ppmt);
    // - the first thing pSCC points to is a GUID saying MEDIATYPE_Video
    //   or MEDIATYPE_Audio, so you can tell if you have a pointer to a
    //   VIDEO_STREAM_CONFIG_CAPS or an AUDIO_STREAM_CONFIG_CAPS structure
    //   There could potentially be many more possibilities other than video
    //   or audio.
    HRESULT GetStreamCaps(
        [in]  int iIndex,    // 0 to #caps-1
        [out] AM_MEDIA_TYPE **ppmt,
            [out] BYTE *pSCC);

}



// Interface to control interleaving of different streams in one file
[
object,
uuid(BEE3D220-157B-11d0-BD23-00A0C911CE86),
pointer_default(unique)
]
interface IConfigInterleaving : IUnknown
{
    import "unknwn.idl";

    typedef enum
    {
        // uninterleaved - samples written out in the order they
        // arrive.
        INTERLEAVE_NONE,

        // approximate interleaving with less overhead for video
        // capture
        INTERLEAVE_CAPTURE,

        // full, precise interleaving. slower.
        INTERLEAVE_FULL,

        // samples written out in the order they arrive. writes are
        // buffered
        INTERLEAVE_NONE_BUFFERED

    } InterleavingMode;

    HRESULT put_Mode(
        [in] InterleavingMode mode
        );

    HRESULT get_Mode(
        [out] InterleavingMode *pMode
        );

    HRESULT put_Interleaving(
        [in] const REFERENCE_TIME *prtInterleave,
        [in] const REFERENCE_TIME *prtPreroll
        );

    HRESULT get_Interleaving(
        [out] REFERENCE_TIME *prtInterleave,
        [out] REFERENCE_TIME *prtPreroll
        );
}

// Interface to control the AVI mux
[
object,
uuid(5ACD6AA0-F482-11ce-8B67-00AA00A3F1A6),
pointer_default(unique)
]
interface IConfigAviMux : IUnknown
{
    import "unknwn.idl";

    // control whether the AVI mux adjusts the frame rate or audio
    // sampling rate for drift when the file is closed. -1 to disables
    // this behavior.
    HRESULT SetMasterStream([in] LONG iStream);
    HRESULT GetMasterStream([out] LONG *pStream);

    // control whether the AVI mux writes out an idx1 index chunk for
    // compatibility with older AVI players.
    HRESULT SetOutputCompatibilityIndex([in] BOOL fOldIndex);
    HRESULT GetOutputCompatibilityIndex([out] BOOL *pfOldIndex);
}

    //---------------------------------------------------------------------
    //  CompressionCaps enum
    //---------------------------------------------------------------------

    // This tells you which features of IAMVideoCompression are supported

    // CanCrunch means that it can compress video to a specified data rate
    // If so, then the output pin's media type will contain that data rate
    // in the format's AvgBytesPerSecond field, and that should be used.

    typedef enum
    {
        CompressionCaps_CanQuality =  0x01,
        CompressionCaps_CanCrunch =   0x02,
        CompressionCaps_CanKeyFrame = 0x04,
        CompressionCaps_CanBFrame =   0x08,
        CompressionCaps_CanWindow =   0x10
    } CompressionCaps;



    //---------------------------------------------------------------------
    // IAMVideoCompression interface
    //
    // Control compression parameters - pin interface
    //---------------------------------------------------------------------

    // This interface is implemented by the output pin of a video capture
    // filter or video compressor that provides video data

    // You use this interface to control how video is compressed... how
    // many keyframes, etc., and to find information like capabilities and
    // the description of this compressor

    [
    object,
        uuid(C6E13343-30AC-11d0-A18C-00A0C9118956),
        pointer_default(unique)
    ]
    interface IAMVideoCompression : IUnknown
    {
    // - Only valid if GetInfo's pCapabilities sets
    //   CompressionCaps_CanKeyFrame
        // - KeyFrameRate < 0 means use the compressor default
    // - KeyFrames == 0 means only the first frame is a key
        HRESULT put_KeyFrameRate (
                    [in] long KeyFrameRate);

        HRESULT get_KeyFrameRate (
                    [out] long * pKeyFrameRate);

    // - Only valid if GetInfo's pCapabilities sets
    //   CompressionCaps_CanBFrame
    // - If keyframes are every 10, and there are 3 P Frames per key,
    //   they will be spaced evenly between the key frames and the other
    //   6 frames will be B frames
    // - PFramesPerKeyFrame < 0 means use the compressor default
        HRESULT put_PFramesPerKeyFrame (
                    [in] long PFramesPerKeyFrame);

        HRESULT get_PFramesPerKeyFrame (
                    [out] long * pPFramesPerKeyFrame);

    // - Only valid if GetInfo's pCapabilities sets
    //   CompressionCaps_CanQuality
    // - Controls image quality
    // - If you are compressing to a fixed data rate, a high quality
    //   means try and use all of the data rate, and a low quality means
    //   feel free to use much lower than the data rate if you want to.
        // - Quality < 0 means use the compressor default
        HRESULT put_Quality (
                    [in] double Quality);

        HRESULT get_Quality (
                    [out] double * pQuality);

    // If you have set a data rate of 100K/sec on a 10fps movie, that
    // will normally mean each frame must be <=10K.  But a window size
    // means every consecutive n frames must average to the data rate,
    // but an individual frame (if n > 1) is allowed to exceed the
    // frame size suggested by the data rate
        HRESULT put_WindowSize (
                    [in] DWORDLONG WindowSize);

        HRESULT get_WindowSize (
                    [out] DWORDLONG * pWindowSize);

    // - pszVersion might be "Version 2.1.0"
    // - pszDescription might be "Danny's awesome video compressor"
    // - pcbVersion and pcbDescription will be filled in with the
    //   required length if they are too short
    // - *pCapabilities is a logical OR of some CompressionCaps flags
        HRESULT GetInfo(
                    [out, size_is(*pcbVersion)] WCHAR * pszVersion,
                    [in,out] int *pcbVersion,
                    [out, size_is(*pcbDescription)] LPWSTR pszDescription,
                    [in,out] int *pcbDescription,
            [out] long *pDefaultKeyFrameRate,
            [out] long *pDefaultPFramesPerKey,
            [out] double *pDefaultQuality,
                    [out] long *pCapabilities  //CompressionCaps
        );

    // - this means when this frame number comes along after the graph
    //   is running, make it a keyframe even if you weren't going to
        HRESULT OverrideKeyFrame(
                    [in]  long FrameNumber
        );

    // - Only valid if GetInfo's pCapabilities sets
    //   CompressionCaps_CanCrunch
    // - this means when this frame number comes along after the graph
    //   is running, make it this many bytes big instead of whatever size
    //   you were going to make it.
        HRESULT OverrideFrameSize(
                    [in]  long FrameNumber,
                    [in]  long Size
        );

    }

    //---------------------------------------------------------------------
    //  VfwCaptureDialogs enum
    //---------------------------------------------------------------------

    typedef enum
    {
         VfwCaptureDialog_Source = 0x01,
     VfwCaptureDialog_Format = 0x02,
     VfwCaptureDialog_Display = 0x04
    } VfwCaptureDialogs;


    //---------------------------------------------------------------------
    //  VfwCompressDialogs enum
    //---------------------------------------------------------------------

    typedef enum
    {
         VfwCompressDialog_Config = 0x01,
     VfwCompressDialog_About =  0x02,
     // returns S_OK if the dialog exists and can be shown, else S_FALSE
         VfwCompressDialog_QueryConfig = 0x04,
     VfwCompressDialog_QueryAbout =  0x08
    } VfwCompressDialogs;


    //---------------------------------------------------------------------
    // IAMVfwCaptureDialogs - filter interface
    //
    // Show a VfW capture driver dialog - SOURCE, FORMAT, or DISPLAY
    //---------------------------------------------------------------------

    // This interface is supported only by Microsoft's Video For Windows
    // capture driver Capture Filter.  It allows an application to bring up
    // one of the 3 driver dialogs that VfW capture drivers have.

    [
    object,
        local,
        uuid(D8D715A0-6E5E-11D0-B3F0-00AA003761C5),
        pointer_default(unique)
    ]
    interface IAMVfwCaptureDialogs : IUnknown
    {
        HRESULT HasDialog(
                    [in]  int iDialog    // VfwCaptureDialogs enum
        );

        HRESULT ShowDialog(
                    [in]  int iDialog,    // VfwCaptureDialogs enum
            [in]  HWND hwnd
        );

        HRESULT SendDriverMessage(
                    [in]  int iDialog,    // VfwCaptureDialogs enum
                    [in]  int uMsg,
                    [in]  long dw1,
                    [in]  long dw2
        );

        // - iDialog can be one of the VfwCaptureDialogs enums
        // - HasDialog returns S_OK if it has the dialog, else S_FALSE
     // - ShowDialog can only be called when not streaming or when another
    //   dialog is not already up
    // - SendDriverMessage can send a private message to the capture driver.
    //   USE IT AT YOUR OWN RISK!
    }

    //---------------------------------------------------------------------
    // IAMVfwCompressDialogs - filter interface
    //
    // Show a VfW codec driver dialog - CONFIG or ABOUT
    //---------------------------------------------------------------------

    // This interface is supported only by Microsoft's ICM Compressor filter
    // (Co).  It allows an application to bring up either the Configure or
    // About dialogs for the ICM codec that it is currently using.

    [
    object,
    local,
        uuid(D8D715A3-6E5E-11D0-B3F0-00AA003761C5),
        pointer_default(unique)
    ]
    interface IAMVfwCompressDialogs : IUnknown
    {

        // Bring up a dialog for this codec
        HRESULT ShowDialog(
                    [in]  int iDialog,   // VfwCompressDialogs enum
            [in]  HWND hwnd
        );

        // Calls ICGetState and gives you the result
        HRESULT GetState(
                    [out, size_is(*pcbState)] LPVOID pState,
            [in, out]  int *pcbState
        );

        // Calls ICSetState
        HRESULT SetState(
                    [in, size_is(cbState)] LPVOID pState,
            [in]  int cbState
        );

        // Send a codec specific message
        HRESULT SendDriverMessage(
                    [in]  int uMsg,
                    [in]  long dw1,
                    [in]  long dw2
        );

        // - iDialog can be one of the VfwCaptureDialogs enums
     // - ShowDialog can only be called when not streaming or when no other
    //   dialog is up already
     // - an application can call GetState after ShowDialog(CONFIG) to
    //   see how the compressor was configured and next time the graph
       //   is used, it can call SetState with the data it saved to return
    //   the codec to the state configured by the dialog box from last time
    // - GetState with a NULL pointer returns the size needed
    // - SendDriverMessage can send a private message to the codec.
    //   USE IT AT YOUR OWN RISK!
    }


    //---------------------------------------------------------------------
    // IAMDroppedFrames interface
    //
    // Report status of capture - pin interface
    //---------------------------------------------------------------------

    // A capture filter's video output pin supports this.  It reports
    // how many frames were not sent (dropped), etc.

    // Every time your filter goes from STOPPED-->PAUSED, you reset all your
    // counts to zero.

    // An app may call this all the time while you are capturing to see how
    // capturing is going.  MAKE SURE you always return as current information
    // as possible while you are running.

    // When your capture filter starts running, it starts by sending frame 0,
    // then 1, 2, 3, etc.  The time stamp of each frame sent should correspond
    // to the graph clock's time when the image was digitized.  The end time
    // is the start time plus the duration of the video frame.
    // You should also set the MediaTime of each sample (SetMediaTime) as well.
    // This should be the frame number ie (0,1) (1,2) (2,3).
    // If a frame is dropped, a downstream filter will be able to tell easily
    // not by looking for gaps in the regular time stamps, but by noticing a
    // frame number is missing (eg.  (1,2) (2,3) (4,5) (5,6) means frame 3
    // was dropped.

    // Using the info provided by this interface, an application can figure out
    // the number of frames dropped, the frame rate achieved (the length of
    // time the graph was running divided by the number of frames not dropped),
    // and the data rate acheived (the length of time the graph was running
    // divided by the average frame size).

    // If your filter is running, then paused, and then run again, you need
    // to continue to deliver frames as if it was never paused.  The first
    // frame after the second RUN cannot be time stamped earlier than the last
    // frame sent before the pause.

    // Your filter must always increment the MediaTime of each sample sent.
    // Never send the same frame # twice, and never go back in time.  The
    // regular time stamp of a sample can also never go back in time.

    [
    object,
        uuid(C6E13344-30AC-11d0-A18C-00A0C9118956),
        pointer_default(unique)
    ]
    interface IAMDroppedFrames : IUnknown
    {
        // Get the number of dropped frames
        HRESULT GetNumDropped(
                    [out]  long * plDropped

        );

        //Get the number of non-dropped frames
        HRESULT GetNumNotDropped(
                    [out]  long * plNotDropped

        );

    // - plArray points to an array of lSize longs.  The filter will
    //   fill it with the frame number of the first lSize frames dropped.
    //   A filter may not have bothered to remember as many as you asked
    //   for, so it will set *plNumCopied to the number of frames it filled
    //   in.
        HRESULT GetDroppedInfo(
                    [in]   long lSize,
                    [out]  long * plArray,
                    [out]  long *  plNumCopied
        );

    // - This is the average size of the frames it didn't drop (in bytes)
        HRESULT GetAverageFrameSize(
                    [out]  long * plAverageSize

        );

    }



    cpp_quote("#define AMF_AUTOMATICGAIN -1.0")

    //---------------------------------------------------------------------
    // IAMAudioInputMixer interface
    //
    // Sets the recording levels, pan and EQ for the audio card inputs
    //---------------------------------------------------------------------

    // This interface is implemented by each input pin of an audio capture
    // filter, to tell it what level, panning, and EQ to use for each input.
    // The name of each pin will reflect the type of input, eg. "Line input 1"
    // or "Mic".  An application uses the pin names to decide how it wants to
    // set the recording levels

    // This interface can also be supported by the audio capture filter itself
    // to control to overall record level and panning after the mix

    [
    object,
        uuid(54C39221-8380-11d0-B3F0-00AA003761C5),
        pointer_default(unique)
    ]
    interface IAMAudioInputMixer : IUnknown
    {
    // This interface is only supported by the input pins, not the filter
     // If disabled, this channel will not be mixed in as part of the
    // recorded signal.
        HRESULT put_Enable (
            [in] BOOL fEnable);    // TRUE=enable FALSE=disable

    //Is this channel enabled?
        HRESULT get_Enable (
            [out] BOOL *pfEnable);

    // When set to mono mode, making a stereo recording of this channel
     // will have both channels contain the same data... a mixture of the
    // left and right signals
        HRESULT put_Mono (
            [in] BOOL fMono);    // TRUE=mono FALSE=multi channel

        //all channels combined into a mono signal?
        HRESULT get_Mono (
            [out] BOOL *pfMono);

     // !!! WILL CARDS BE ABLE TO BOOST THE GAIN?
        //Set the record level for this channel
        HRESULT put_MixLevel (
                    [in] double Level);    // 0 = off, 1 = full (unity?) volume
                    // AMF_AUTOMATICGAIN, if supported,
                    // means automatic

        //Get the record level for this channel
        HRESULT get_MixLevel (
                    [out] double *pLevel);

    // For instance, when panned full left, and you make a stereo recording
    // of this channel, you will record a silent right channel.
        HRESULT put_Pan (
                    [in] double Pan);    // -1 = full left, 0 = centre, 1 = right

        //Get the pan for this channel
        HRESULT get_Pan (
                    [out] double *pPan);

    // Boosts the bass of low volume signals before they are recorded
    // to compensate for the fact that your ear has trouble hearing quiet
    // bass sounds
        HRESULT put_Loudness (
            [in] BOOL fLoudness);// TRUE=on FALSE=off

        HRESULT get_Loudness (
            [out] BOOL *pfLoudness);

    // boosts or cuts the treble of the signal before it's recorded by
    // a certain amount of dB
        HRESULT put_Treble (
                    [in] double Treble); // gain in dB (-ve = attenuate)

        //Get the treble EQ for this channel
        HRESULT get_Treble (
                    [out] double *pTreble);

    // This is the maximum value allowed in put_Treble.  ie 6.0 means
    // any value between -6.0 and 6.0 is allowed
        HRESULT get_TrebleRange (
                    [out] double *pRange); // largest value allowed

    // boosts or cuts the bass of the signal before it's recorded by
    // a certain amount of dB
        HRESULT put_Bass (
                    [in] double Bass); // gain in dB (-ve = attenuate)

        // Get the bass EQ for this channel
        HRESULT get_Bass (
                    [out] double *pBass);

    // This is the maximum value allowed in put_Bass.  ie 6.0 means
    // any value between -6.0 and 6.0 is allowed
        HRESULT get_BassRange (
                    [out] double *pRange); // largest value allowed

    }


    //---------------------------------------------------------------------
    // IAMBufferNegotiation interface
    //
    // Tells a pin what kinds of buffers to use when connected
    //---------------------------------------------------------------------

    // This interface can be implemented by any pin that will connect to
    // another pin using IMemInputPin.  All capture filters should support
    // this interface.

    // SuggestAllocatorProperties is a way for an application to get
    // in on the buffer negotiation process for a pin.  This pin will use
    // the numbers given to it by the application as its request to the
    // allocator.  An application can use a negative number for any element
    // in the ALLOCATOR_PROPERTIES to mean "don't care".  An application must
    // call this function before the pin is connected, or it will be too late
    // To ensure that an application gets what it wants, it would be wise to
    // call this method on both pins being connected together, so the other
    // pin doesn't overrule the application's request.

    // GetAllocatorProperties can only be called after a pin is connected and
    // it returns the properties of the current allocator being used

    [
    object,
        uuid(56ED71A0-AF5F-11D0-B3F0-00AA003761C5),
        pointer_default(unique)
    ]
    interface IAMBufferNegotiation : IUnknown
    {
        HRESULT SuggestAllocatorProperties (
            [in] const ALLOCATOR_PROPERTIES *pprop);

        HRESULT GetAllocatorProperties (
            [out] ALLOCATOR_PROPERTIES *pprop);

    }


    //---------------------------------------------------------------------
    // AnalogVideoStandard enum
    //---------------------------------------------------------------------

    typedef enum tagAnalogVideoStandard
    {
        AnalogVideo_None     = 0x00000000,  // This is a digital sensor
        AnalogVideo_NTSC_M   = 0x00000001,  //        75 IRE Setup
        AnalogVideo_NTSC_M_J = 0x00000002,  // Japan,  0 IRE Setup
        AnalogVideo_NTSC_433 = 0x00000004,

        AnalogVideo_PAL_B    = 0x00000010,
        AnalogVideo_PAL_D    = 0x00000020,
        AnalogVideo_PAL_G    = 0x00000040,
        AnalogVideo_PAL_H    = 0x00000080,
        AnalogVideo_PAL_I    = 0x00000100,
        AnalogVideo_PAL_M    = 0x00000200,
        AnalogVideo_PAL_N    = 0x00000400,

        AnalogVideo_PAL_60   = 0x00000800,

        AnalogVideo_SECAM_B  = 0x00001000,
        AnalogVideo_SECAM_D  = 0x00002000,
        AnalogVideo_SECAM_G  = 0x00004000,
        AnalogVideo_SECAM_H  = 0x00008000,
        AnalogVideo_SECAM_K  = 0x00010000,
        AnalogVideo_SECAM_K1 = 0x00020000,
        AnalogVideo_SECAM_L  = 0x00040000,
        AnalogVideo_SECAM_L1 = 0x00080000,

        AnalogVideo_PAL_N_COMBO             // Argentina
                             = 0x00100000
    } AnalogVideoStandard;

    cpp_quote("#define AnalogVideo_NTSC_Mask  0x00000007")
    cpp_quote("#define AnalogVideo_PAL_Mask   0x00100FF0")
    cpp_quote("#define AnalogVideo_SECAM_Mask 0x000FF000")


    //---------------------------------------------------------------------
    // TunerInputType enum
    //---------------------------------------------------------------------

    typedef enum tagTunerInputType
    {
        TunerInputCable,
        TunerInputAntenna
    } TunerInputType;

    //---------------------------------------------------------------------
    // VideoCopyProtectionType enum
    //---------------------------------------------------------------------

    typedef enum
    {
        VideoCopyProtectionMacrovisionBasic,
        VideoCopyProtectionMacrovisionCBI
    } VideoCopyProtectionType;

    //---------------------------------------------------------------------
    // PhysicalConnectorType enum
    //---------------------------------------------------------------------

    typedef enum tagPhysicalConnectorType
    {
        PhysConn_Video_Tuner = 1,
        PhysConn_Video_Composite,
        PhysConn_Video_SVideo,
        PhysConn_Video_RGB,
        PhysConn_Video_YRYBY,
        PhysConn_Video_SerialDigital,
        PhysConn_Video_ParallelDigital,
        PhysConn_Video_SCSI,
        PhysConn_Video_AUX,
        PhysConn_Video_1394,
        PhysConn_Video_USB,
        PhysConn_Video_VideoDecoder,
        PhysConn_Video_VideoEncoder,
        PhysConn_Video_SCART,
        PhysConn_Video_Black,


        PhysConn_Audio_Tuner = 0x1000,
        PhysConn_Audio_Line,
        PhysConn_Audio_Mic,
        PhysConn_Audio_AESDigital,
        PhysConn_Audio_SPDIFDigital,
        PhysConn_Audio_SCSI,
        PhysConn_Audio_AUX,
        PhysConn_Audio_1394,
        PhysConn_Audio_USB,
        PhysConn_Audio_AudioDecoder,
    } PhysicalConnectorType;




    //---------------------------------------------------------------------
    // IAMAnalogVideoDecoder interface
    //---------------------------------------------------------------------

    [
    object,
        uuid(C6E13350-30AC-11d0-A18C-00A0C9118956),
    pointer_default(unique)
    ]
    interface IAMAnalogVideoDecoder : IUnknown
    {

         //Gets the supported analog video standards (NTSC/M, PAL/B, SECAM/K1...
        HRESULT get_AvailableTVFormats(
                    [out] long *lAnalogVideoStandard
                    );

        //Sets or gets the current analog video standard (NTSC/M, PAL/B, SECAM/K1, ...
        HRESULT put_TVFormat(
                    [in] long lAnalogVideoStandard
                    );

        // Sets or gets the current analog video standard (NTSC/M, PAL/B, SECAM/K1, ...
        HRESULT get_TVFormat(
                    [out] long * plAnalogVideoStandard
                    );

        // True if horizontal sync is locked
        HRESULT get_HorizontalLocked (
                    [out] long * plLocked);

        // True if connected to a VCR (changes PLL timing)
        HRESULT put_VCRHorizontalLocking (
                    [in] long lVCRHorizontalLocking);

        HRESULT get_VCRHorizontalLocking (
                    [out] long * plVCRHorizontalLocking);

        // Returns the number of lines in the video signal")]
        HRESULT get_NumberOfLines (
                    [out] long *plNumberOfLines);

        // Enables or disables the output bus
        HRESULT put_OutputEnable (
                    [in] long lOutputEnable);

        HRESULT get_OutputEnable (
                    [out] long *plOutputEnable);

    }


    //---------------------------------------------------------------------
    // VideoProcAmp Property enum
    //---------------------------------------------------------------------

    typedef enum tagVideoProcAmpProperty
    {
        VideoProcAmp_Brightness,
        VideoProcAmp_Contrast,
        VideoProcAmp_Hue,
        VideoProcAmp_Saturation,
        VideoProcAmp_Sharpness,
        VideoProcAmp_Gamma,
        VideoProcAmp_ColorEnable,
        VideoProcAmp_WhiteBalance,
        VideoProcAmp_BacklightCompensation,
        VideoProcAmp_Gain
    } VideoProcAmpProperty;

    //---------------------------------------------------------------------
    // VideoProcAmp Flags enum
    //---------------------------------------------------------------------

    typedef enum tagVideoProcAmpFlags
    {
        VideoProcAmp_Flags_Auto   = 0x0001,
        VideoProcAmp_Flags_Manual = 0x0002
    } VideoProcAmpFlags;

    //---------------------------------------------------------------------
    // IAMVideoProcAmp interface
    //
    // Adjusts video quality in either the analog or digital domain.
    //
    //---------------------------------------------------------------------

    [
    object,
        uuid(C6E13360-30AC-11d0-A18C-00A0C9118956),
    pointer_default(unique)
    ]
    interface IAMVideoProcAmp : IUnknown
    {
        // Returns min, max, step size, and default values
        HRESULT GetRange(
            [in] long Property,         // Which property to query
            [out] long * pMin,          // Range minimum
            [out] long * pMax,          // Range maxumum
            [out] long * pSteppingDelta,// Step size
            [out] long * pDefault,      // Default value
            [out] long * pCapsFlags     // VideoProcAmpFlags

        );

        // Set a VideoProcAmp property
        HRESULT Set(
            [in]  long Property,        // VideoProcAmpProperty
            [in]  long lValue,          // Value to set
            [in]  long Flags            // VideoProcAmp_Flags_*

        );

        // Get a VideoProcAmp property
        HRESULT Get(
            [in]  long Property,        // VideoProcAmpProperty
            [out] long * lValue,        // Current value
            [out] long * Flags          // VideoProcAmp_Flags_*
        );
    }


    //---------------------------------------------------------------------
    // CameraControl Property enum
    //---------------------------------------------------------------------

    typedef enum tagCameraControlProperty
    {
        CameraControl_Pan,
        CameraControl_Tilt,
        CameraControl_Roll,
        CameraControl_Zoom,
        CameraControl_Exposure,
        CameraControl_Iris,
        CameraControl_Focus
    } CameraControlProperty;

    //---------------------------------------------------------------------
    // CameraControl Flags enum
    //---------------------------------------------------------------------

    typedef enum tagCameraControlFlags
    {
        CameraControl_Flags_Auto     = 0x0001,
        CameraControl_Flags_Manual   = 0x0002
    } CameraControlFlags;

    //---------------------------------------------------------------------
    // IAMCameraControl interface
    //
    // Control of local or remote cameras
    //---------------------------------------------------------------------

    [
    object,
        uuid(C6E13370-30AC-11d0-A18C-00A0C9118956),
    pointer_default(unique)
    ]
    interface IAMCameraControl : IUnknown
    {
        // Returns min, max, step size, and default values
        HRESULT GetRange(
            [in] long Property,         // Which property to query
            [out] long * pMin,          // Range minimum
            [out] long * pMax,          // Range maxumum
            [out] long * pSteppingDelta,// Step size
            [out] long * pDefault,      // Default value
            [out] long * pCapsFlags     // CamaeraControlFlags

        );

        // Set a CameraControl property
        HRESULT Set(
            [in]  long Property,        // CameraControlProperty
            [in]  long lValue,          // Value to set
            [in]  long Flags            // CameraControl_Flags_*

        );

        // Get a CameraControl property
        HRESULT Get(
            [in]  long Property,        // CameraControlProperty
            [out] long * lValue,        // Current value
            [out] long * Flags          // CameraControl_Flags_*
        );
    }

    //---------------------------------------------------------------------
    // VideoControl Flags enum
    //---------------------------------------------------------------------

    typedef enum tagVideoControlFlags
    {
        VideoControlFlag_FlipHorizontal        = 0x0001,
        VideoControlFlag_FlipVertical          = 0x0002,
        VideoControlFlag_ExternalTriggerEnable = 0x0004,
        VideoControlFlag_Trigger               = 0x0008

    } VideoControlFlags;

    //---------------------------------------------------------------------
    // IAMVideoControl interface
    //
    // Control of horizontal & vertical flip, external trigger,
    // and listing available frame rates
    //---------------------------------------------------------------------

    [
    object,
        uuid(6a2e0670-28e4-11d0-a18c-00a0c9118956),
    pointer_default(unique)
    ]
    interface IAMVideoControl : IUnknown
    {
        // What can the underlying hardware do?
        HRESULT GetCaps(
            [in]  IPin * pPin,          // the pin to query or control
            [out] long * pCapsFlags     // VideoControlFlag_*

        );

        // Set the mode of operation
        HRESULT SetMode(
            [in]  IPin * pPin,          // the pin to query or control
            [in]  long Mode             // VideoControlFlag_*

        );

        // Get the mode of operation
        HRESULT GetMode(
            [in]  IPin * pPin,          // the pin to query or control
            [out] long * Mode           // VideoControlFlag_*
        );

        // Get actual frame rate info for USB and 1394
        // This is only available when streaming
        HRESULT GetCurrentActualFrameRate(
            [in]  IPin * pPin,                  // the pin to query or control
            [out] LONGLONG * ActualFrameRate    // 100 nS units
        );

        // Get max available frame rate info for USB and 1394
        // Returns the max frame rate currently available based on bus bandwidth usage
        HRESULT GetMaxAvailableFrameRate(
            [in]  IPin * pPin,          // the pin to query or control
            [in]  long iIndex,          // 0 to IAMStreamConfig->GetNumberOfCapabilities-1
            [in]  SIZE Dimensions,      // width and height
            [out] LONGLONG * MaxAvailableFrameRate  // 100 nS units
        );

        // Get List of available frame rates
        HRESULT GetFrameRateList(
            [in]  IPin * pPin,           // the pin to query or control
            [in]  long iIndex,           // 0 to IAMStreamConfig->GetNumberOfCapabilities-1
            [in]  SIZE Dimensions,       // width and height
            [out] long * ListSize,       // Number of elements in the list
            [out] LONGLONG ** FrameRates // Array of framerates in 100 nS units
                                         // or NULL to just get ListSize
        );

    }


    //---------------------------------------------------------------------
    // IAMCrossbar interface
    //
    // Controls a routing matrix for analog or digital video or audio
    //---------------------------------------------------------------------

    [
    object,
        uuid(C6E13380-30AC-11d0-A18C-00A0C9118956),
    pointer_default(unique)
    ]
    interface IAMCrossbar : IUnknown
    {

        // How many pins are there?
        HRESULT get_PinCounts(
                [out] long * OutputPinCount,        // count of output pins
                [out] long * InputPinCount);        // count of input pins

        // True if routing is possible
        HRESULT CanRoute (
                [in]  long OutputPinIndex,          // the output pin
                [in]  long InputPinIndex);          // the input pin

        // Routes an input pin to an output pin
        HRESULT Route (
                [in]  long OutputPinIndex,          // the output pin
                [in]  long InputPinIndex);          // the input pin

        // Returns the input pin connected to a given output pin
        HRESULT get_IsRoutedTo (
                [in]  long OutputPinIndex,          // the output pin
                [out] long * InputPinIndex);        // the connected input pin

        // Returns a pin which is related to a given pin
        // (ie. this audio pin is related to a video pin)
        HRESULT get_CrossbarPinInfo (
                [in] BOOL IsInputPin,               // TRUE for input pins
                [in] long PinIndex,                 // a pin
                [out] long * PinIndexRelated,       // Index of related pin
                [out] long * PhysicalType);         // Physical type of pin

    }


    //---------------------------------------------------------------------
    // IAMTuner interface
    //
    // base tuner device
    //---------------------------------------------------------------------

    // predefined subchannel values
    typedef enum tagAMTunerSubChannel
    {
        AMTUNER_SUBCHAN_NO_TUNE     = -2,   // don't tune
        AMTUNER_SUBCHAN_DEFAULT     = -1    // use default sub chan
    } AMTunerSubChannel;

    // predefined signal strength values
    typedef enum tagAMTunerSignalStrength
    {
        AMTUNER_HASNOSIGNALSTRENGTH = -1,   // cannot indicate signal strength
        AMTUNER_NOSIGNAL            = 0,    // no signal available
        AMTUNER_SIGNALPRESENT       = 1     // signal present
    } AMTunerSignalStrength;

    // specifies the mode of operation of the tuner
    typedef enum tagAMTunerModeType
    {
        AMTUNER_MODE_DEFAULT    = 0x0000,   // default tuner mode
        AMTUNER_MODE_TV         = 0x0001,   // tv
        AMTUNER_MODE_FM_RADIO   = 0x0002,   // fm radio
        AMTUNER_MODE_AM_RADIO   = 0x0004,   // am radio
        AMTUNER_MODE_DSS        = 0x0008,   // dss
    } AMTunerModeType;

    // Events reported by IAMTunerNotification
    typedef enum tagAMTunerEventType{
        AMTUNER_EVENT_CHANGED   = 0x0001,   // status changed
    } AMTunerEventType;

    interface IAMTunerNotification;

    [
        object,
        uuid(211A8761-03AC-11d1-8D13-00AA00BD8339),
        pointer_default(unique)
    ]
    interface IAMTuner : IUnknown
    {
        // Sets and gets the Channel
        HRESULT put_Channel(
            [in] long lChannel,
            [in] long lVideoSubChannel,
            [in] long lAudioSubChannel
            );
        HRESULT get_Channel(
            [out] long *plChannel,
            [out] long *plVideoSubChannel,
            [out] long *plAudioSubChannel
            );

        // Gets the minimum and maximum channel available
        HRESULT ChannelMinMax(
            [out] long *lChannelMin,
            [out] long *lChannelMax
            );

        // CountryCode is the same as the international
        // long distance telephone dialing prefix

        HRESULT put_CountryCode(
            [in] long lCountryCode
            );
        HRESULT get_CountryCode(
            [out] long *plCountryCode
            );

        HRESULT put_TuningSpace(
            [in] long lTuningSpace
            );
        HRESULT get_TuningSpace(
            [out] long *plTuningSpace
            );

        [local] HRESULT Logon(
            [in] HANDLE hCurrentUser
            );
        HRESULT Logout();

        // Signal status for current channel
        // signal strength == TUNER_NOSIGNAL, or strength value
        HRESULT SignalPresent(
            [out] long * plSignalStrength    // AMTunerSignalStrength
            );

        // allow multifunction tuner to be switch between modes
        HRESULT put_Mode(
            [in] AMTunerModeType lMode        // AMTunerModeType
            );
        HRESULT get_Mode(
            [out] AMTunerModeType *plMode    // AMTunerModeType
            );

        // retrieve a bitmask of the possible modes
        HRESULT GetAvailableModes(
            [out] long *plModes                // AMTunerModeType
            );

        // allow IAMTuner clients to receive event notification
        HRESULT RegisterNotificationCallBack(
            [in] IAMTunerNotification *pNotify,
            [in] long lEvents       // bitmask from AMTunerEventType enumeration
            );
        HRESULT UnRegisterNotificationCallBack(
                        [in] IAMTunerNotification *pNotify
            );
    }

    //---------------------------------------------------------------------
    // IAMTunerNotification interface
    //
    // Provided to IAMTuner if notification callbacks are desired
    //---------------------------------------------------------------------

    [
        object,
        uuid(211A8760-03AC-11d1-8D13-00AA00BD8339),
        pointer_default(unique)
    ]
    interface IAMTunerNotification : IUnknown
    {
        HRESULT OnEvent([in] AMTunerEventType Event);
    }


    //---------------------------------------------------------------------
    // IAMTVTuner interface
    //
    // Controls an analog TV tuner device
    //---------------------------------------------------------------------

    [
        object,
        uuid(211A8766-03AC-11d1-8D13-00AA00BD8339),
        pointer_default(unique)
    ]
    interface IAMTVTuner : IAMTuner
    {
        // Gets the supported analog video standards (NTSC/M, PAL/B, SECAM/K1, ...
        HRESULT get_AvailableTVFormats(
            [out] long *lAnalogVideoStandard
            );

        // Gets the current analog video standard (NTSC/M, PAL/B, SECAM/K1, ...)
        HRESULT get_TVFormat(
            [out] long * plAnalogVideoStandard
            );

        // Scans for a signal on a given channel
        // NOTE: this is equivalent to put_Channel(), SignalStrength()
        HRESULT AutoTune(
            [in] long lChannel,
            [out] long * plFoundSignal
            );

        // Saves the fine tuning information for all channels")]
        HRESULT StoreAutoTune();

        // The number of TV sources plugged into the tuner
        HRESULT get_NumInputConnections(
            [out] long * plNumInputConnections
            );

        // Sets or gets the tuner input type (Cable or Antenna)
        HRESULT put_InputType(
            [in] long lIndex,
            [in] TunerInputType InputType
            );
        HRESULT get_InputType(
            [in] long lIndex,
            [out] TunerInputType * pInputType
            );

        // Sets or gets the tuner input
        HRESULT put_ConnectInput(
            [in] long lIndex
            );
        HRESULT get_ConnectInput(
            [out] long *plIndex
            );

        // Gets the video and audio carrier frequencies
        HRESULT get_VideoFrequency(
            [out] long *lFreq
            );
        HRESULT get_AudioFrequency(
            [out] long *lFreq
            );
    }


    //---------------------------------------------------------------------
    // IBPCSatelliteTuner interface
    //
    // An interface supporting Satellite tuning-related functions
    //---------------------------------------------------------------------
    [
        object,
        local,
        uuid(211A8765-03AC-11d1-8D13-00AA00BD8339),
        pointer_default(unique)
    ]
    interface IBPCSatelliteTuner : IAMTuner
    {
        HRESULT get_DefaultSubChannelTypes(
            [out] long *plDefaultVideoType, // Provider-specific service type
            [out] long *plDefaultAudioType  // Provider-specific service type
            );

        HRESULT put_DefaultSubChannelTypes(
            [in] long lDefaultVideoType,    // Provider-specific service type
            [in] long lDefaultAudioType     // Provider-specific service type
            );

        HRESULT IsTapingPermitted();        // S_OK yes, S_FALSE no
    }



    //---------------------------------------------------------------------
    // IAMTVAudio interface
    //
    // TV Audio control
    //---------------------------------------------------------------------

    typedef enum tagTVAudioMode
    {
        AMTVAUDIO_MODE_MONO            = 0x0001,       // Mono
        AMTVAUDIO_MODE_STEREO       = 0x0002,       // Stereo
        AMTVAUDIO_MODE_LANG_A       = 0x0010,       // Primary language
        AMTVAUDIO_MODE_LANG_B       = 0x0020,       // 2nd avail language
        AMTVAUDIO_MODE_LANG_C       = 0x0040,       // 3rd avail language
    } TVAudioMode;

    // Events reported by IAMTVAudioNotification
    typedef enum tagAMTVAudioEventType
    {
        AMTVAUDIO_EVENT_CHANGED     = 0x0001,       // mode changed
    } AMTVAudioEventType;

    interface IAMTVAudioNotification;

    [
        object,
        local,
        uuid(83EC1C30-23D1-11d1-99E6-00A0C9560266),
        pointer_default(unique)
    ]
    interface IAMTVAudio : IUnknown
    {
        // retrieve a bitmask of the formats available in the hardware
        HRESULT GetHardwareSupportedTVAudioModes(
            [out] long *plModes                // TVAudioMode
            );

        // retrieve a bitmask of the possible modes
        HRESULT GetAvailableTVAudioModes(
            [out] long *plModes                // TVAudioMode
            );

        HRESULT get_TVAudioMode(
            [out] long *plMode              // TVAudioMode
            );
        HRESULT put_TVAudioMode(
            [in] long lMode                    // TVAudioMode
            );

        // allow IAMTVAudio clients to receive event notification
        HRESULT RegisterNotificationCallBack(
            [in] IAMTunerNotification *pNotify,
            [in] long lEvents       // bitmask from AMTVAudioEventType enumeration
            );
        HRESULT UnRegisterNotificationCallBack(
            IAMTunerNotification *pNotify
            );
    }

    //---------------------------------------------------------------------
    // IAMTVAudioNotification interface
    //
    // Provided to IAMTVAudio clients if notification callbacks are desired
    //---------------------------------------------------------------------

    [
        object,
        local,
        uuid(83EC1C33-23D1-11d1-99E6-00A0C9560266),
        pointer_default(unique)
    ]
    interface IAMTVAudioNotification : IUnknown
    {
        HRESULT OnEvent([in] AMTVAudioEventType Event);
    }




    //---------------------------------------------------------------------
    // IAMAnalogVideoEncoder interface
    //---------------------------------------------------------------------

    [
   object,
        uuid(C6E133B0-30AC-11d0-A18C-00A0C9118956),
    pointer_default(unique)
    ]
    interface IAMAnalogVideoEncoder : IUnknown
    {
        // Gets the supported analog video standards (NTSC/M, PAL/B, SECAM/K1, ...)
        HRESULT get_AvailableTVFormats(
                    [out] long *lAnalogVideoStandard
                    );

        // Sets or gets the current analog video standard (NTSC/M, PAL/B, SECAM/K1, ...)
        HRESULT put_TVFormat(
                    [in] long lAnalogVideoStandard
                    );

        HRESULT get_TVFormat(
                    [out] long * plAnalogVideoStandard
                    );

        // Sets or gets the copy protection
        HRESULT put_CopyProtection (
                    [in]  long lVideoCopyProtection); // VideoCopyProtectionType

        HRESULT get_CopyProtection (
                    [out] long *lVideoCopyProtection); // VideoCopyProtectionType


        // Enables and disables close captioning
        HRESULT put_CCEnable (
                    [in] long lCCEnable);

        HRESULT get_CCEnable (
                    [out] long *lCCEnable);

    }

    // used by IKsPropertySet set AMPROPSETID_Pin
    typedef enum {
    AMPROPERTY_PIN_CATEGORY,
        AMPROPERTY_PIN_MEDIUM
    } AMPROPERTY_PIN;

    //---------------------------------------------------------------------
    // IKsPropertySet interface
    //
    // Sets or gets a property identified by a property set GUID and a
    // property ID.
    //
    // Return codes for all 3 methods:
    //    E_PROP_SET_UNSUPPORTED  the property set is not supported
    //    E_PROP_ID_UNSUPPORTED   the property ID is not supported
    //                                for the specified property set
    //---------------------------------------------------------------------

cpp_quote("#ifndef _IKsPropertySet_")
cpp_quote("#define _IKsPropertySet_")

    //---------------------------------------------------------------------
    // #defines for IKsPropertySet::QuerySupported return result in pTypeSupport
    //---------------------------------------------------------------------

cpp_quote("#define KSPROPERTY_SUPPORT_GET  1")
cpp_quote("#define KSPROPERTY_SUPPORT_SET  2")


    [
    object,
        uuid(31EFAC30-515C-11d0-A9AA-00AA0061BE93),
    pointer_default(unique)
    ]
    interface IKsPropertySet : IUnknown
    {
        [local] HRESULT Set(
                    [in]    REFGUID     guidPropSet,
                    [in]    DWORD       dwPropID,
                    [in, size_is(cbInstanceData)] LPVOID pInstanceData,
                    [in]    DWORD        cbInstanceData,
                    [in, size_is(cbPropData)] LPVOID pPropData,
                    [in]    DWORD        cbPropData);

        [call_as(Set)] HRESULT RemoteSet(
                    [in]    REFGUID     guidPropSet,
                    [in]    DWORD       dwPropID,
                    [in, size_is(cbInstanceData)] byte * pInstanceData,
                    [in]    DWORD        cbInstanceData,
                    [in, size_is(cbPropData)] byte * pPropData,
                    [in]    DWORD        cbPropData);

        // To get a property, the caller allocates a buffer which the called
        // function fills in.  To determine necessary buffer size, call Get with
        // pPropData=NULL and cbPropData=0.
        [local] HRESULT Get(
                    [in]    REFGUID     guidPropSet,
                    [in]    DWORD       dwPropID,
                    [in, size_is(cbInstanceData)] LPVOID pInstanceData,
                    [in]    DWORD        cbInstanceData,
                    [out, size_is(cbPropData)] LPVOID pPropData,
                    [in]    DWORD        cbPropData,
                    [out]   DWORD *        pcbReturned);

        [call_as(Get)] HRESULT RemoteGet(
                    [in]    REFGUID     guidPropSet,
                    [in]    DWORD       dwPropID,
                    [in, size_is(cbInstanceData)] byte * pInstanceData,
                    [in]    DWORD        cbInstanceData,
                    [out, size_is(cbPropData)] byte * pPropData,
                    [in]    DWORD        cbPropData,
                    [out]   DWORD *        pcbReturned);
        // QuerySupported must either return E_NOTIMPL or correctly indicate
        // if getting or setting the property set and property is supported.
        // S_OK indicates the property set and property ID combination is
        HRESULT QuerySupported(
                    [in]    REFGUID     guidPropSet,
                    [in]    DWORD       dwPropID,
                    [out]   DWORD       *pTypeSupport);
    }
cpp_quote("#endif // _IKsPropertySet_")

[
object,
uuid(6025A880-C0D5-11d0-BD4E-00A0C911CE86),
pointer_default(unique)
]
interface IMediaPropertyBag : IPropertyBag
{
    import "ocidl.idl";

    typedef IMediaPropertyBag *LPMEDIAPROPERTYBAG;

    // return the i'th element in the property bag
    HRESULT EnumProperty(
        [in]  ULONG iProperty,
        [in, out] VARIANT * pvarPropertyName,
        [in, out] VARIANT * pvarPropertyValue
        );

}


[
object,
uuid(5738E040-B67F-11d0-BD4D-00A0C911CE86),
pointer_default(unique)
]
interface IPersistMediaPropertyBag : IPersist
{
    import "ocidl.idl";
    import "unknwn.idl";

    HRESULT InitNew(
        void
        );

    HRESULT Load(
        [in] IMediaPropertyBag * pPropBag,
        [in] IErrorLog * pErrorLog
        );

    HRESULT Save(
        [in] IMediaPropertyBag * pPropBag,
        [in] BOOL fClearDirty,
        [in] BOOL fSaveAllProperties
        );


    typedef IPersistMediaPropertyBag * LPPERSISTMEDIAPROPERTYBAG;
}


   //---------------------------------------------------------------------
   //
   // Defines IAMPhysicalPinInfo Interface
   //
   // Returns an enum and string that describes an input pin's physical type.
   //
   // Implement if: you have physical input pins such as video or audio (like
   // on a video capture card or a VCR)
   //
   // Use if: you want to communicate to a user available physical input pins
   // and allow them to select the active one if there is more than one
   //---------------------------------------------------------------------


[
    object,
     uuid(F938C991-3029-11cf-8C44-00AA006B6814),
     pointer_default(unique)
 ]
interface IAMPhysicalPinInfo : IUnknown {

    // Returns VFW_E_NO_ACCEPTABLE_TYPES if not a physical pin
    HRESULT GetPhysicalType(
        [out] long *pType,            // the enum representing the Physical Type
        [out] LPOLESTR *ppszType        // a friendly name
    );
}
typedef IAMPhysicalPinInfo *PAMPHYSICALPININFO;

   //---------------------------------------------------------------------
   // Defines IAMExtDevice Interface
   //
   // Base interface for external professional devices
   //
   // Implement if: the filter controls an external device such as a VCR,
   // timecode reader/generator, etc.  The intent is to build a object from
   // this implementation plus another that specifically describes the device,
   // such as IAMExtTransport.
   //
   // Use if: you want to control and external device such as a VCR
   //
   // See edevdefs.h for the enumerated parameter list
   //---------------------------------------------------------------------
 [
    object,
     uuid(B5730A90-1A2C-11cf-8C23-00AA006B6814),
    pointer_default(unique)
 ]
 interface IAMExtDevice : IUnknown
 {
    // General device capabilities property.  See edevdefs.h for supported
    // values
    HRESULT GetCapability(
         [in] long Capability,        // identify the property
        [out] long *pValue,            // return value
        [out] double *pdblValue        // return value
     );

    // Get external device identification string.  Usually the model #
    // of the device
    HRESULT get_ExternalDeviceID(
        [out] LPOLESTR *ppszData        // ID string
    );

    HRESULT get_ExternalDeviceVersion(
        [out] LPOLESTR *ppszData        // revision string
    );

    // Controls the external device's power mode
    HRESULT put_DevicePower([in] long PowerMode
    );
    HRESULT get_DevicePower([out] long *pPowerMode
    );

    // Some devices need to be reset in some way, i.e., rewinding a VCR
    // to the beginning of the tape and resetting the counter to zero.
    HRESULT Calibrate(
        [in] HEVENT hEvent,
        [in] long Mode,
        [out] long *pStatus        // OATRUE is active, OAFALSE is inactive
    );

    // Selects the device's communications port, i.e.,COM1, IEEE1394, etc.
    // See edevdefs.h for enums
    HRESULT put_DevicePort([in] long DevicePort
    );
    HRESULT get_DevicePort([out] long *pDevicePort
    );

}
typedef IAMExtDevice *PEXTDEVICE;

   //---------------------------------------------------------------------
   // Defines IAMExtTransport Interface
   //
   // Contains properties and methods that control behavior of an external
   // transport device such as a VTR
   //
   // Implement if: you control such a device.  Intended to be agregated
   // with IAMExtDevice.
   //
   // Use if: you want to control such a device
   //
   // See edevdefs.h for the parameter lists
   //---------------------------------------------------------------------
[
    object,
     uuid(A03CD5F0-3045-11cf-8C44-00AA006B6814),
     pointer_default(unique)
 ]
interface IAMExtTransport : IUnknown {

    // General transport capabilities property.  See edevdefs.h for enums
    HRESULT GetCapability(
         [in] long Capability,        // identify the property
        [out] long *pValue,            // return value
        [out] double *pdblValue        // return value
     );

    // For disc-based devices: spinning, or not spinning.
    // For tape-based device: threaded, unthreaded or ejected
    HRESULT put_MediaState([in] long State
    );
    HRESULT get_MediaState([out] long *pState    // see edevdefs.h
    );

    // Determines state of unit's front panel
    HRESULT put_LocalControl([in] long State
    );
    HRESULT get_LocalControl([out] long *pState    // OATRUE or OAFALSE
    );

    // Transport status such as Play, Stop, etc.  More extensive
    // than AM states.
    HRESULT GetStatus(
        [in] long StatusItem,    // see edevdefs.h
        [out] long *pValue
    );

    // Parameters such as recording speed, servo reference, ballistics, etc.
    HRESULT GetTransportBasicParameters(
        [in] long Param,
        [out] long *pValue,
        [out] LPOLESTR *ppszData
    );

    HRESULT SetTransportBasicParameters(
        [in] long Param,
        [in] long Value,
        [in] LPCOLESTR pszData
    );

    // Parameters such as video output mode
    HRESULT GetTransportVideoParameters(
        [in] long Param,
        [out] long *pValue
    );

    HRESULT SetTransportVideoParameters(
        [in] long Param,
        [in] long Value
    );

    // Parameters such as audio channel enable
    HRESULT GetTransportAudioParameters(
        [in] long Param,
        [out] long *pValue
    );

    HRESULT SetTransportAudioParameters(
        [in] long Param,
        [in] long Value
    );

    // Mode is  the movement of the transport, i.e., Play, Stop,
    // Record, Edit, etc.
    HRESULT put_Mode([in] long Mode
    );
    HRESULT get_Mode([out] long *pMode
    );

    // Rate is for variable speed control of the the device.  This
    // can be linked to IMediaControl::Rate() in the implementation
    // if desired.
    HRESULT put_Rate([in] double dblRate
    );
    HRESULT get_Rate([out] double *pdblRate
    );

    // This is a lengthy method, that is, it is in effect until canceled or complete and
    // requires housekeeping by the filter.  It puts transport in play mode and maintains
    // fixed relationship between master time reference and transport position.
    HRESULT GetChase(
        [out] long *pEnabled,    // OATRUE | OAFALSE
        [out] long *pOffset,    // offset in current time format
        [out] HEVENT *phEvent    // completion notification
    );
    HRESULT SetChase(
        [in] long Enable,        // OATRUE | OAFALSE
        [in] long Offset,        // offset in current time format
        [in] HEVENT hEvent        // completion notification
    );

    // Also a lengthy method: temporarily change transport speed (for synchronizing).
    HRESULT GetBump(
        [out] long *pSpeed,
        [out] long *pDuration    // in current time format
    );
    HRESULT SetBump(
        [in] long Speed,
        [in] long Duration    // in current time format
    );

    // Enable/Disable transport anti-headclog control.
    HRESULT get_AntiClogControl([out] long *pEnabled    // OATRUE | OAFALSE
    );
    HRESULT put_AntiClogControl([in] long Enable    // OATRUE | OAFALSE
    );

    // The following group of properties describes edit events.  An edit event can be a
    // standard insert or assemble edit or a memorized position called a bookmark.
    // A NOTE ABOUT EVENTS: as with all lengthy commands, event objects must be created to
    // signal completion or error.

    // Intended usage: an edit event is prepared for use by:
    // 1. Registering an edit property set and getting an EditID
    // 2. Setting the necessary edit properties
    // 3. Setting the edit property set active

    // Please see edevdefs.h for properties and values

    // The reference clock's advance is the mechanism that puts an edit in motion (see
    // ED_EDIT_REC_INPOINT).

    // Property set methods
    HRESULT GetEditPropertySet(
        [in] long EditID,
        [out] long *pState    // ED_SET_ACTIVE | ED_SET_INACTIVE | ED_SET_INVALID
                            // | ED_SET_EXECUTING
    );

    HRESULT SetEditPropertySet(
        [in, out] long *pEditID,
        [in] long State        // ED_SET_REGISTER | ED_SET_DELETE | ED_SET_ACTIVE |
    );                        // ED_SET_INACTIVE

    // the following properties define an edit event such as a bookmark, seek point, or
    //  actual edit
    HRESULT GetEditProperty(
        [in] long EditID,
        [in] long Param,
        [out] long *pValue
    );
    HRESULT SetEditProperty(
        [in] long EditID,
        [in] long Param,
        [in] long Value
    );

    // Activates a capable transport's edit control (typically used for "on the fly" editing).
    HRESULT get_EditStart([out] long *pValue    // OATRUE or OAFALSE
    );
    HRESULT put_EditStart([in] long Value            // OATRUE or OAFALSE
    );
}
typedef IAMExtTransport *PIAMEXTTRANSPORT;

   //---------------------------------------------------------------------
   // Defines IAMTimecodeReader Interface
   //
   // Contains properties and methods that define behavior of a
   // SMPTE/MIDI Timecode Reader.  It is expected that this interface
   // will be combined (aggregated) with IAMExtTransport to "build" a pro
   // VCR.
   //
   // Implement if: you control such a device
   //
   // Use if: you want to control such a device
   //
   // See edevdefs.h for the parameter lists
   //=====================================================================


// timecode structures
cpp_quote("#if 0")
cpp_quote("/* the following is what MIDL knows how to remote */")
typedef struct tagTIMECODE {
        WORD    wFrameRate;    // will be replaced by AM defs, but see ED_FORMAT_SMPTE for now
        WORD    wFrameFract;    // fractional frame.  full scale is always 0x1000
        DWORD    dwFrames;
}TIMECODE;
cpp_quote("#else /* 0 */")
cpp_quote("#ifndef TIMECODE_DEFINED")
cpp_quote("#define TIMECODE_DEFINED")
cpp_quote("typedef union _timecode {")
cpp_quote("   struct {")
cpp_quote("     WORD   wFrameRate;")
cpp_quote("     WORD   wFrameFract;")
cpp_quote("     DWORD  dwFrames;")
cpp_quote("     };")
cpp_quote("   DWORDLONG  qw;")
cpp_quote("   } TIMECODE;")
cpp_quote("")
cpp_quote("#endif /* TIMECODE_DEFINED */")
cpp_quote("#endif /* 0 */")

typedef TIMECODE *PTIMECODE;

typedef struct tagTIMECODE_SAMPLE {
    LONGLONG    qwTick;        // ActiveMovie 100ns timestamp
    TIMECODE    timecode;    // timecode
    DWORD        dwUser;        // timecode user data (aka user bits)
    DWORD        dwFlags;       // timecode flags - see below
} TIMECODE_SAMPLE;
typedef TIMECODE_SAMPLE *PTIMECODE_SAMPLE;


[
    object,
     uuid(9B496CE1-811B-11cf-8C77-00AA006B6814),
     pointer_default(unique)
]
interface IAMTimecodeReader : IUnknown
{
    // Timecode Reader Mode - gets/sets the following properties
    // ED_TCR_SOURCE - timecode gen (readback), LTC, VITC, or Control Track
    HRESULT GetTCRMode(
        [in] long Param,
        [out] long *pValue);
    HRESULT SetTCRMode(
        [in] long Param,
        [in] long Value);

    // Select which line of the vertical interval timecode will be read from (if VITC).
    // To read VITC on specific multiple lines, the caller would make successive calls to
    // put_VITCLine(), once for each line desired.
    HRESULT put_VITCLine(
        [in] long Line );    // valid lines are 11-20, 0 means autoselect,
                            // hi bit set means add to list of lines (for
                            // readers that test across multiple lines)
    HRESULT get_VITCLine(
        [out] long *pLine ); // hi bit set means multiple lines are used,
                            // and successive calls will cycle through the
                            // line numbers (like an enumerator, only simpler)

    // GetTimecode can be used to obtain the most recent timecode value available in the
    // stream. The client can use this to monitor the timecode, parse duplicates and
    // discontinuities. The source filter supplying the timecode or possibly a down stream
    // filter might want to parse for discontinuities or errors since you have to look at
    // every sample to do this properly.
    //

    HRESULT GetTimecode(
      [out] PTIMECODE_SAMPLE pTimecodeSample) ;

}
typedef IAMTimecodeReader *PIAMTIMECODEREADER;

   //---------------------------------------------------------------------
   //=====================================================================
   // Defines IAMTimecodeGenerator Interface
   //
   // Contains properties and methods that define behavior of an external
   // SMPTE/MIDI Timecode Generator.  It is expected that this interface
   // will be combined (aggregated) with IAMExtTransport to "build" a pro
   // VCR.
   //
   // Implement if: you control such a device
   //
   // Use if: you want to control such a device
   //
   // See edevdefs.h for the parameter lists
    //---------------------------------------------------------------------
[
    object,
     uuid(9B496CE0-811B-11cf-8C77-00AA006B6814),
     pointer_default(unique)
 ]
interface IAMTimecodeGenerator : IUnknown {

    // Timecode Generator Mode - gets/sets the following properties (see
    // vcrdefss.h for detailed values):
    // ED_TCG_TIMECODE_TYPE - LTC, VITC, or MIDI
    // ED_TCG_FRAMERATE - 24, 25, 30 drop or 30 nondrop
    // ED_TCG_SYNC_SOURCE - what is driving the bitclock
    // ED_TCG_REFERENCE_SOURCE - what is driving the count value
    HRESULT GetTCGMode(
        [in] long Param,
        [out] long *pValue);

    HRESULT SetTCGMode(
        [in] long Param,
        [in] long Value);

    // Select into which line(s) of the vertical interval timecode will be inserted (if VITC).
    // Hi bit set means add this line to any previously set lines.
    // To generate VITC on specific multiple lines, the caller would make successive calls to
    // put_VITCLine(), once for each line desired.
    HRESULT put_VITCLine(
        [in] long Line        // valid lines are 11-20, 0 means autoselect(this setting
    );                        // is for TC readers that decode from multiple lines)
    HRESULT get_VITCLine(
        [out] long *pLine
    );

    // Sets timecode and/or userbit value.  If generator is running, takes effect
    // immediately.  If caller wants to set only timecode, set userbit value to -1L (and
    // same for setting userbits only)
    //

    HRESULT SetTimecode(
      [in] PTIMECODE_SAMPLE pTimecodeSample) ;


    // GetTimecode can be used to obtain the most recent timecode value available in the
    // stream. The client can use this to monitor the timecode and verify the generator is
    // working properly
    //

    HRESULT GetTimecode(
      [out] PTIMECODE_SAMPLE pTimecodeSample) ;

}
typedef IAMTimecodeGenerator *PIAMTIMECODEGENERATOR;

    //---------------------------------------------------------------------
   // Defines IAMTimecodeDisplay Interface
   //
   // Contains properties and methods that define behavior of an external
   // SMPTE/MIDI Timecode Display device (aka "character generator" for
   // making "burn-ins" or "window dubs"). It is expected that this interface
   // will be combined (aggregated) with IAMExtTransport and the timecode
   // interfaces to "build" a pro VCR.
   //
   // Implement if: you control such a device
   //
   // Use if: you want to control such a device
   //
   // See edevdefs.h for the parameter lists
    //---------------------------------------------------------------------
[
    object,
     uuid(9B496CE2-811B-11cf-8C77-00AA006B6814),
     pointer_default(unique)
 ]
interface IAMTimecodeDisplay : IUnknown
{
    // Enable/disable external device's timecode reader's character generator output.  Some
    // readers have this feature - this is not intended for rendering inside the PC!
    HRESULT GetTCDisplayEnable(
        [out] long *pState);    // OATRUE | OAFALSE
    HRESULT SetTCDisplayEnable(
        [in] long State);        // OATRUE | OAFALSE
                                // Timecode reader's character generator output
                                //  characteristics (size, position, intensity, etc.).
    HRESULT GetTCDisplay(
        [in] long Param,
        [out] long *pValue);
    HRESULT SetTCDisplay(
        [in] long Param,
        [in] long Value);

    /* Allowable params and values (see edevdefs.h for details):
        ED_TCD_SOURCE
            ED_TCR | ED_TCG
        ED_TCD_SIZE
            ED_SMALL | ED_MED | ED_LARGE
        ED_TCD_POSITION
            ED_TOP | ED_MIDDLE | ED_BOTTOM or'd  with
            ED_LEFT | ED_CENTER | ED_RIGHT
        ED_TCD_INTENSITY
            ED_HIGH | ED_LOW
        ED_TCD_TRANSPARENCY    // set from 0 to 4, 0 being completely opaque
        ED_TCD_INVERT        // white on black or black on white
            OATRUE | OAFALSE
        ED_TCD_BORDER        // white border for black chars, black border for white letters
            OATRUE | OAFALSE
    */
}
typedef IAMTimecodeDisplay *PIAMTIMECODEDISPLAY;


[
    object,
    uuid(c6545bf0-e76b-11d0-bd52-00a0c911ce86),
    pointer_default(unique)
]
interface IAMDevMemoryAllocator : IUnknown
{
    HRESULT GetInfo(
        [out] DWORD *pdwcbTotalFree,
        [out] DWORD *pdwcbLargestFree,
        [out] DWORD *pdwcbTotalMemory,
        [out] DWORD *pdwcbMinimumChunk);

    HRESULT CheckMemory(
        [in] const BYTE *pBuffer);

    HRESULT Alloc(
        [out] BYTE **ppBuffer,
        [in, out] DWORD *pdwcbBuffer);

    HRESULT Free(
        [in] BYTE *pBuffer);

    HRESULT GetDevMemoryObject(
        [out] IUnknown **ppUnkInnner,
        [in] IUnknown *pUnkOuter);
}
typedef IAMDevMemoryAllocator *PAMDEVMEMORYALLOCATOR;


[
    object,
    uuid(c6545bf1-e76b-11d0-bd52-00a0c911ce86),
    pointer_default(unique)
]
interface IAMDevMemoryControl : IUnknown
{
    HRESULT QueryWriteSync();

    HRESULT WriteSync();

    HRESULT GetDevId(
        [out] DWORD *pdwDevId);

}
typedef IAMDevMemoryControl *PAMDEVMEMORYCONTROL;

//  Flags for IAMStreamSelection::Info
enum _AMSTREAMSELECTINFOFLAGS {
    AMSTREAMSELECTINFO_ENABLED   = 0x01,  // Enable - off for disable
    AMSTREAMSELECTINFO_EXCLUSIVE = 0x02   // Turns off the others in the group
                                          // when enabling this one
};
//  Flags for IAMStreamSelection::Enable
enum _AMSTREAMSELECTENABLEFLAGS {
    //  Currently valid values are :
    //  0 - disable all streams in the group containing this stream
    //  ..._ENABLE - enable only this stream with in the given group
    //               and disable all others
    //  ..._ENABLEALL - send out all streams
    AMSTREAMSELECTENABLE_ENABLE    = 0x01,  // Enable
    AMSTREAMSELECTENABLE_ENABLEALL = 0x02   // Enable all streams in the group
                                            // containing this stream
};

//  Control which logical streams are played and find out information about
//  them
//  Normally supported by a filter
[
    object,
    uuid(c1960960-17f5-11d1-abe1-00a0c905f375),
    pointer_default(unique)
]
interface IAMStreamSelect : IUnknown
{
    //  Returns total count of streams
    HRESULT Count(
        [out] DWORD *pcStreams);      // Count of logical streams

    //  Return info for a given stream - S_FALSE if iIndex out of range
    //  The first steam in each group is the default
    HRESULT Info(
        [in] long lIndex,              // 0-based index
        [out] AM_MEDIA_TYPE **ppmt,   // Media type - optional
                                      // Use DeleteMediaType to free
        [out] DWORD *pdwFlags,        // flags - optional
        [out] LCID  *plcid,           // LCID (returns 0 if none) - optional
        [out] DWORD *pdwGroup,        // Logical group - optional
        [out] WCHAR **ppszName,       // Name - optional - free with CoTaskMemFree
                                      // optional
        [out] IUnknown **ppObject,    // Associated object - optional
                                      // Object may change if Enable is
                                      // called on this interface
                                      // - returns NULL if no associated object
                                      // Returns pin or filter for DShow
        [out] IUnknown **ppUnk);      // Stream specific interface

    //  Enable or disable a given stream
    HRESULT Enable(
        [in]  long lIndex,
        [in]  DWORD dwFlags);
}
typedef IAMStreamSelect *PAMSTREAMSELECT;

enum _AMRESCTL_RESERVEFLAGS
{
    AMRESCTL_RESERVEFLAGS_RESERVE     = 0x00,  // Increment reserve count
    AMRESCTL_RESERVEFLAGS_UNRESERVE   = 0x01   // Decrement reserve count
};

//  Reserve resources now so that playback can be subsequently
//  guaranteed
//
//  Normally supported by a filter
//
[
    object,
    uuid(8389d2d0-77d7-11d1-abe6-00a0c905f375),
    pointer_default(unique),
    local
]
interface IAMResourceControl : IUnknown
{
    //  The reserve count is incremented/decremented if and only if
    //  S_OK is returned
    //  Unreserve once for every Reserve call
    HRESULT Reserve(
        [in] DWORD dwFlags,          //  From _AMRESCTL_RESERVEFLAGS enum
        [in] PVOID pvReserved        //  Must be NULL
    );
}


//  Set clock adjustments - supported by some clocks
[
    object,
    uuid(4d5466b0-a49c-11d1-abe8-00a0c905f375),
    pointer_default(unique),
    local
]
interface IAMClockAdjust : IUnknown
{
    //  Set the following delta to clock times
    //  The clock will add adjust its times by the given delta
    HRESULT SetClockDelta(
        [in] REFERENCE_TIME rtDelta
    );
};

//  Filter miscellaneous status flags

enum _AM_FILTER_MISC_FLAGS {
    AM_FILTER_MISC_FLAGS_IS_RENDERER = 0x00000001, /* Will deliver EC_COMPLETE
                                                     at end of media */
    AM_FILTER_MISC_FLAGS_IS_SOURCE   = 0x00000002  /*  Filter sources data */
};

[
    object,
    uuid(2dd74950-a890-11d1-abe8-00a0c905f375),
    pointer_default(unique),
    local
]
interface IAMFilterMiscFlags : IUnknown
{
    //  Get miscellaneous property flags
    ULONG GetMiscFlags(void);
};


// Video Image drawing interface
[
    object,
    local,
    uuid(48efb120-ab49-11d2-aed2-00a0c995e8d5),
    pointer_default(unique),
]
interface IDrawVideoImage : IUnknown
{
    HRESULT DrawVideoImageBegin();

    HRESULT DrawVideoImageEnd();

    HRESULT DrawVideoImageDraw(
        [in] HDC hdc,
        [in] LPRECT lprcSrc,
        [in] LPRECT lprcDst
    );
}

//
// Video Image decimation interface
//
// The aim of this interface is to enable a video renderer filter to
// control the decimation properties of a video decoder connected to
// the video renderer
//
// This interface should only be supported by decoders that are capable of
// decimating their output image by an arbitary amount.
//
//
[
    object,
    local,
    uuid(2e5ea3e0-e924-11d2-b6da-00a0c995e8df),
    pointer_default(unique),
]
interface IDecimateVideoImage : IUnknown
{
    //
    // Informs the decoder that it should decimate its output
    // image to the specified width and height.  If the decoder can
    // decimate to this size it should return S_OK.
    // If the decoder can't perform the requested decimation
    // or wants to stop performing the decimation that it is
    // currently doing it should return E_FAIL.
    //
    HRESULT SetDecimationImageSize(
        [in] long lWidth,
        [in] long lHeight);

    //
    // Informs the decoder that it should stop decimating its output image
    // and resume normal output.
    //
    HRESULT ResetDecimationImageSize();
}

typedef enum _DECIMATION_USAGE {
    DECIMATION_LEGACY,              // decimate at ovly then video port then crop
    DECIMATION_USE_DECODER_ONLY,    // decimate image at the decoder only
    DECIMATION_USE_VIDEOPORT_ONLY,  // decimate at the video port only
    DECIMATION_USE_OVERLAY_ONLY,    // decimate at the overlay only
    DECIMATION_DEFAULT              // decimate at decoder then ovly the vide port then crop
} DECIMATION_USAGE;

[
    object,
    local,
    uuid(60d32930-13da-11d3-9ec6-c4fcaef5c7be),
    pointer_default(unique),
]
interface IAMVideoDecimationProperties: IUnknown
{
    //
    // Queries the current usage of the above IDecimateVideoImage
    // interface.
    //
    HRESULT QueryDecimationUsage(
        [out] DECIMATION_USAGE* lpUsage);       // from DECIMATION_USAGE enum

    //
    // Sets the current usage of the above IDecimateVideoImage
    // interface.
    //
    HRESULT SetDecimationUsage(
        [in] DECIMATION_USAGE Usage);           // from DECIMATION_USAGE enum
}

//---------------------------------------------------------------------
//
// IVideoFrameStep interface
//
//---------------------------------------------------------------------

[
    object,
    uuid(e46a9787-2b71-444d-a4b5-1fab7b708d6a),
    pointer_default(unique),
]
interface IVideoFrameStep : IUnknown
{
    //
    //  Stop(), Pause(), Run() all cancel Step as does any seeking
    //  request.
    //
    //  The Step() and CancelStep() methods of this interface
    //  Cancel any previous step.
    //
    //  When stepping is complete EC_STEP_COMPLETE is signalled.
    //
    //  When the filter graph gets EC_STEP_COMPLETE it automatically
    //  sets the filter graph into paused state and forwards the
    //  notification to the application
    //
    //  Returns S_OK if stepping initiated.
    //
    //  dwFrames
    //    1 means step 1 frame forward
    //    0 is invalid
    //    n (n > 1) means skip n - 1 frames and show the nth
    //
    //  pStepObject
    //    NULL - default step object (filter) picked
    //    non-NULL - use this object for stepping
    //
    HRESULT Step(DWORD dwFrames, [unique] IUnknown *pStepObject);

    //  Can step?
    //  Returns S_OK if it can, S_FALSE if it can't or error code.
    //  bMultiple - if TRUE return whether can step n > 1
    HRESULT CanStep(long bMultiple, [unique] IUnknown *pStepObject);

    //  Cancel stepping
    HRESULT CancelStep();
}




//---------------------------------------------------------------------
//
// IAMPushSource interface
//
// Provides a means for source filters to describe information about the
// data that they source, such as whether the data is live or not, and
// what type of clock was used for timestamps. This information may be
// needed by other clocks in the graph in order to provide accurate
// synchronization. Also provides a way to specify an offset value for
// the filter to use when timestamping the streams it sources. Provides
// support for the IAMLatency interface as well.
//
//---------------------------------------------------------------------

enum _AM_PUSHSOURCE_FLAGS {

    //
    // The default assumption is that the data is from a live source,
    // time stamped with the graph clock, and the source does not
    // attempt to rate match the data it delivers.
    // The following flags can be used to override this assumption.
    //

    // capability flags
    AM_PUSHSOURCECAPS_INTERNAL_RM        = 0x00000001,  // source provides internal support for rate matching
    AM_PUSHSOURCECAPS_NOT_LIVE           = 0x00000002,  // don't treat source data as live
    AM_PUSHSOURCECAPS_PRIVATE_CLOCK      = 0x00000004,  // source data timestamped with clock not
                                                        // exposed to the graph

    // request flags, set by user via SetPushSourceFlags method
    AM_PUSHSOURCEREQS_USE_STREAM_CLOCK   = 0x00010000,  // source was requested to timestamp
                                                        // using a clock that isn't the graph clock

    AM_PUSHSOURCEREQS_USE_CLOCK_CHAIN    = 0x00020000,  // source requests reference clock chaining
};

//
// Used to set a source filter to run in a "live" mode.
//
[
object,
    uuid(F185FE76-E64E-11d2-B76E-00C04FB6BD3D),
    pointer_default(unique)
]
interface IAMPushSource : IAMLatency
{
    // used to discover push source's capabilities.
    // may be any combination of the AM_PUSHSOURCE_FLAGS flags.
    HRESULT GetPushSourceFlags (
        [out] ULONG *pFlags
    );

    // used to set request flags for a push source.
    // may be a combination of the AM_PUSHSOURCE_REQS_xxx flags.
    HRESULT SetPushSourceFlags (
        [in]  ULONG Flags
    );

    // specify an offset for push source time stamps
    HRESULT SetStreamOffset (
        [in]  REFERENCE_TIME  rtOffset
    );

    // retrieve the offset this push source is using
    HRESULT GetStreamOffset (
        [out] REFERENCE_TIME  *prtOffset
    );

    // retrieve the maximum stream offset this push source thinks it can support
    HRESULT GetMaxStreamOffset (
        [out] REFERENCE_TIME  *prtMaxOffset
    );

    // allows the filter graph to tell a push source the maximum latency allowed on the graph
    // this allows pins like the video capture preview pin to be more efficient with the amount
    // of buffering required to support the maximum graph latency
    HRESULT SetMaxStreamOffset (
        [in] REFERENCE_TIME  rtMaxOffset
    );
};


// ------------------------------------------------------------------------
//
// IAMDeviceRemoval interface
//
// Implemented by filters to request and receive WM_DEVICECHANGE
// notifications
//
// ------------------------------------------------------------------------

[
        object,
        uuid(f90a6130-b658-11d2-ae49-0000f8754b99),
        pointer_default(unique)
]
interface IAMDeviceRemoval : IUnknown
{

    HRESULT DeviceInfo(
        [out] CLSID *pclsidInterfaceClass,
        [out] WCHAR **pwszSymbolicLink);

    HRESULT Reassociate();

    HRESULT Disassociate();
}

//
// for DV
//
typedef struct {
    //for 1st 5/6 DIF seq.
    DWORD dwDVAAuxSrc;
    DWORD dwDVAAuxCtl;
    //for 2nd  5/6 DIF seq.
    DWORD dwDVAAuxSrc1;
    DWORD dwDVAAuxCtl1;
    //for video information
    DWORD dwDVVAuxSrc;
    DWORD dwDVVAuxCtl;
    DWORD dwDVReserved[2];

} DVINFO, *PDVINFO;

// ------------------------------------------------------------------------
//
// IDVEnc interface
//
// Implemented by DV encoder filters to set Encoder format
//
// ------------------------------------------------------------------------
enum _DVENCODERRESOLUTION {            //resolution
    DVENCODERRESOLUTION_720x480     =   2012,
    DVENCODERRESOLUTION_360x240     =   2013,
    DVENCODERRESOLUTION_180x120     =   2014,
    DVENCODERRESOLUTION_88x60       =   2015
};
enum _DVENCODERVIDEOFORMAT {        //PAL/ntsc
    DVENCODERVIDEOFORMAT_NTSC        =    2000,
    DVENCODERVIDEOFORMAT_PAL            =    2001
};
enum _DVENCODERFORMAT {        // dvsd/dvhd/dvsl
    DVENCODERFORMAT_DVSD        =    2007,
    DVENCODERFORMAT_DVHD        =    2008,
    DVENCODERFORMAT_DVSL        =    2009
};
[
        object,
        uuid(d18e17a0-aacb-11d0-afb0-00aa00b67a42),
        pointer_default(unique)
]
interface IDVEnc : IUnknown
{

    HRESULT get_IFormatResolution (
        [out] int *VideoFormat,    //pal or ntsc
        [out] int *DVFormat,        //dvsd dvhd dvsl
        [out] int *Resolution,        //720, 360, 180,88
        [in]  BYTE fDVInfo,        //TRUE: DVINFO structure exist, FALSE: Do not care DVINFO
        [out] DVINFO *sDVInfo        //NULL if fDVInfo=FALSE,
    );

   HRESULT put_IFormatResolution (
        [in] int VideoFormat,
        [in] int DVFormat,
        [in] int Resolution,
        [in] BYTE fDVInfo,        //TRUE: DVINFO structure exist, FALSE: Do not care DVINFO
        [in] DVINFO *sDVInfo        //NULL if fDVInfo=FALSE,
    );

}

// ------------------------------------------------------------------------
//
// IDVDec interface
//
// Implemented by DV decoder filters to set decoder size
//
// ------------------------------------------------------------------------
enum _DVDECODERRESOLUTION {
    DVDECODERRESOLUTION_720x480     =   1000,
    DVDECODERRESOLUTION_360x240     =   1001,
    DVDECODERRESOLUTION_180x120     =   1002,
    DVDECODERRESOLUTION_88x60       =   1003
};
enum _DVRESOLUTION {
    DVRESOLUTION_FULL        =    1000,
    DVRESOLUTION_HALF        =    1001,
    DVRESOLUTION_QUARTER        =    1002,
    DVRESOLUTION_DC            =    1003
};
[
        object,
        uuid(b8e8bd60-0bfe-11d0-af91-00aa00b67a42),
        pointer_default(unique)
]
interface IIPDVDec : IUnknown
{
    HRESULT get_IPDisplay (
            [out] int *displayPix        // The display pixels arrage
                 );

    HRESULT put_IPDisplay (
             [in] int displayPix            // Change to this display pixel arrage
                 ) ;
}

//------------------------------------------------------------------------
//
// IDVRGB219 interface
//
// Implemented by both the DV encoder and decoder filters
// Used for enabling the 219 mode in which the Range of RGB24 either received
// by the encoder or produced by the decoder becomes (16,16,16)--(235,235,235)
// instead of (0,0,0)--(255,255,255).
// The interface's method has no effect in case of any other color space than
// RGB 24
//
//------------------------------------------------------------------------

[
        object,
        uuid(58473A19-2BC8-4663-8012-25F81BABDDD1),
        pointer_default(unique)
]
interface IDVRGB219 : IUnknown
{
    HRESULT SetRGB219 ([in] BOOL bState);   // State = True   Turn 219 mode on else turn it off.
}


// ------------------------------------------------------------------------
//
// IDVSplitter interface
//
// Implemented by DV splitter filters
//
// ------------------------------------------------------------------------
[
    object,
    uuid(92a3a302-da7c-4a1f-ba7e-1802bb5d2d02)
]
interface IDVSplitter : IUnknown
{
    HRESULT DiscardAlternateVideoFrames(
            [in] int nDiscard
                 ) ;
}

//  Audio Renderer statistics params for IAMAudioRendererStats interface
enum _AM_AUDIO_RENDERER_STAT_PARAM {
    AM_AUDREND_STAT_PARAM_BREAK_COUNT = 1,     // audio breaks
    AM_AUDREND_STAT_PARAM_SLAVE_MODE,          // current slave mode, see AM_AUDREND_SLAVE_MODEs
    AM_AUDREND_STAT_PARAM_SILENCE_DUR,         // silence inserted due to gaps (ms)
    AM_AUDREND_STAT_PARAM_LAST_BUFFER_DUR,     // duration of the last buffer received
    AM_AUDREND_STAT_PARAM_DISCONTINUITIES,     // discontinuities seen since running
    AM_AUDREND_STAT_PARAM_SLAVE_RATE,          // what rate are we currently slaving at? S_FALSE if not slaving
    AM_AUDREND_STAT_PARAM_SLAVE_DROPWRITE_DUR, // for waveOut slaving - data dropped or added to stay in-sync
                                               //       dwParam1 - dropped duration(ms)
                                               //       dwParam2 - paused duration(ms)
    AM_AUDREND_STAT_PARAM_SLAVE_HIGHLOWERROR,  // highest & lowest clock differences seen
                                               //       dwParam1 - high err
                                               //       dwParam2 - low err
    AM_AUDREND_STAT_PARAM_SLAVE_LASTHIGHLOWERROR, // last high and low errs seen
                                               //       dwParam1 - last high err
                                               //       dwParam2 - last low err
    AM_AUDREND_STAT_PARAM_SLAVE_ACCUMERROR,    // error between master/slave clocks
    AM_AUDREND_STAT_PARAM_BUFFERFULLNESS,      // percent audio buffer fullness
    AM_AUDREND_STAT_PARAM_JITTER               // input buffer jitter
};

//---------------------------------------------------------------------
//
// IAMAudioRendererStats interface
//
// Interface to get at statistical information that is optionally stored
// in an audio renderer filter. Supported on the filter interface (although
// this might be better for ksproxy if we define it as a pin interface?)
//
//---------------------------------------------------------------------

[
object,
    uuid(22320CB2-D41A-11d2-BF7C-D7CB9DF0BF93),
    pointer_default(unique)
]
interface IAMAudioRendererStats : IUnknown
{
    // Get value corresponding to the passed in parameter id
    HRESULT GetStatParam(
        [in]   DWORD     dwParam,
        [out]  DWORD     *pdwParam1,
        [out]  DWORD     *pdwParam2
    );
}

//---------------------------------------------------------------------
//
// IAMLatency interface
//
// Allows a filter to report the expected latency associated with a data
// stream flowing from its input to output pin. Supported on output pins.
//
//---------------------------------------------------------------------

[
object,
    uuid(62EA93BA-EC62-11d2-B770-00C04FB6BD3D),
    pointer_default(unique)
]
interface IAMLatency : IUnknown
{
    HRESULT GetLatency(
        [in]   REFERENCE_TIME  *prtLatency
    );
}


enum _AM_INTF_SEARCH_FLAGS {
    AM_INTF_SEARCH_INPUT_PIN  = 0x00000001,   // search input pins
    AM_INTF_SEARCH_OUTPUT_PIN = 0x00000002,   // search output pins
    AM_INTF_SEARCH_FILTER     = 0x00000004    // search filters
};

//---------------------------------------------------------------------
//
// IAMGraphStreams interface
//
// Interface used to control or search over connected streams of data
// flow within a filter graph.
//
//---------------------------------------------------------------------

[
object,
    uuid(632105FA-072E-11d3-8AF9-00C04FB6BD3D),
    pointer_default(unique)
]
interface IAMGraphStreams : IUnknown
{
    // Search upstream from the current pin, for the specified interface.
    // dwFlags can be any combination of the AM_INTF_SEARCH_FLAGS, and allows
    // control over what objects to search. A value of 0 means to search all.
    HRESULT FindUpstreamInterface(
        [in]                IPin *pPin,
        [in]                REFIID riid,
        [out, iid_is(riid)] void **ppvInterface,
        [in]                DWORD dwFlags );

    // Enable or disable the graph's setting of a timestamp offset
    // on push sources.
    HRESULT SyncUsingStreamOffset( [in] BOOL bUseStreamOffset );

    // allow an app to set the maximum offset used on push source filters
    HRESULT SetMaxGraphLatency( [in] REFERENCE_TIME rtMaxGraphLatency );
}


//
// IAMOverlayFX
//
// This interface is exposed by the overlay mixer filter and allows
// an application to apply various "effects" to the overlay surface
// used by the overlay mixer.
//
// The effects that can be applied are described by the AMOVERLAYFX
// enumeration.
//
enum AMOVERLAYFX {
    // Normal (ie. top down, left to right) video
    AMOVERFX_NOFX =             0x00000000,

    // Mirror the overlay across the vertical axis
    AMOVERFX_MIRRORLEFTRIGHT =  0x00000002,

     // Mirror the overlay across the horizontal axis
    AMOVERFX_MIRRORUPDOWN =     0x00000004,

    // Deinterlace the overlay, if possible
    AMOVERFX_DEINTERLACE =      0x00000008
};

[
object,
    uuid(62fae250-7e65-4460-bfc9-6398b322073c),
    pointer_default(unique)
]
interface IAMOverlayFX : IUnknown
{
    // Use this method to determine what overlay effects are currently available
    // for the overlay surface used by the overlay mixer filter.
    //
    HRESULT QueryOverlayFXCaps(
        [out] DWORD *lpdwOverlayFXCaps
        );

    // Use this method to apply a new overlay effect to the overlay surface
    // used by the overlay mixer filter.  This method can be called while the
    // filter graph is running, the effect is applied immediately
    //
    HRESULT SetOverlayFX(
        [in] DWORD dwOverlayFX
        );

    // Use this method to determine what effect (if any) is currently being
    // applied to the overlay surface by the overlay mixer filter.
    //
    HRESULT GetOverlayFX(
        [out] DWORD *lpdwOverlayFX
        );
}



// IAMOpenProgress interface provides information about current progress through
// a download

[
object,
uuid(8E1C39A1-DE53-11cf-AA63-0080C744528D),
pointer_default(unique)
]

interface IAMOpenProgress : IUnknown
{
    // QueryProgress can be used to query the source filter which supports this interface
    // for progress information during a renderfile operation.
    HRESULT QueryProgress(
          [out] LONGLONG* pllTotal,
          [out] LONGLONG* pllCurrent
         );

    // AbortOperation can be used to request an abort of RenderFile operation
    // causing it to stop downloading. This methods instructs the exporter of
    // the IAMOpenProgress interface to hold up their internal abort flag until
    // further notice.
    HRESULT AbortOperation(
        );
}


/*++
    IMpeg2Demultiplexer

    This interface is implemented by the MPEG-2 Demultiplexer filter,
    irrespective of program vs. transport stream splitting functionality.
--*/
[
    object,
    local,
    uuid (436eee9c-264f-4242-90e1-4e330c107512),
    pointer_default(unique)
]
interface IMpeg2Demultiplexer : IUnknown
{
    /*++
        ------------------------------------------------------------------------
        purpose:    Creates an output pin of the specified media type.

        pMediaType      media type specifier for the new pin
        pszPinName      pin name; cannot be a duplicate of an existing pin
        ppIPin          IPin interface pointer to the newly created pin
    --*/
    HRESULT
    CreateOutputPin (
        [in]    AM_MEDIA_TYPE * pMediaType,
        [in]    LPWSTR          pszPinName,
        [out]   IPin **         ppIPin
        ) ;

    /*++
        ------------------------------------------------------------------------
        purpose:    Updates the media type of the specified output pin.  If no
                      connection exists, the media type is updated always.  If
                      the pin is connected, the success/failure of the call will
                      depend on downstream input pin's accetance/rejection of
                      the specified media type, and subsequent success/failure
                      of a reconnect.

        pszPinName      pin name
        pMediaType      new media type specifier
    --*/
    HRESULT
    SetOutputPinMediaType (
        [in]    LPWSTR          pszPinName,
        [in]    AM_MEDIA_TYPE * pMediaType
        ) ;

    /*++
        ------------------------------------------------------------------------
        purpose:    Deletes the specified output pin.

        pszPinName      pin name
    --*/
    HRESULT
    DeleteOutputPin (
        [in]    LPWSTR  pszPinName
        ) ;
} ;

//---------------------------------------------------------------------
// IEnumStreamIdMap interface
//---------------------------------------------------------------------

cpp_quote("#define MPEG2_PROGRAM_STREAM_MAP                 0x00000000")
cpp_quote("#define MPEG2_PROGRAM_ELEMENTARY_STREAM          0x00000001")
cpp_quote("#define MPEG2_PROGRAM_DIRECTORY_PES_PACKET       0x00000002")
cpp_quote("#define MPEG2_PROGRAM_PACK_HEADER                0x00000003")
cpp_quote("#define MPEG2_PROGRAM_PES_STREAM                 0x00000004")
cpp_quote("#define MPEG2_PROGRAM_SYSTEM_HEADER              0x00000005")

cpp_quote("#define SUBSTREAM_FILTER_VAL_NONE                0x10000000")

typedef struct {
    ULONG   stream_id ;                     //  mpeg-2 stream_id
    DWORD   dwMediaSampleContent ;          //  #define'd above
    ULONG   ulSubstreamFilterValue ;        //  filtering value
    int     iDataOffset ;                   //  offset to elementary stream
} STREAM_ID_MAP ;

/*++
    Enumerates the StreamIds mapped on a pin
--*/
[
    object,
    local,
    uuid (945C1566-6202-46fc-96C7-D87F289C6534),
    pointer_default(unique)
]
interface IEnumStreamIdMap : IUnknown
{
    HRESULT
    Next (
        [in]                            ULONG           cRequest,
        [in, out, size_is (cRequest)]   STREAM_ID_MAP * pStreamIdMap,
        [out]                           ULONG *         pcReceived
        ) ;

    HRESULT
    Skip (
        [in]    ULONG   cRecords
        ) ;

    HRESULT
    Reset (
        ) ;

    HRESULT
    Clone (
        [out]   IEnumStreamIdMap **  ppIEnumStreamIdMap
        ) ;
} ;

/*++
    Implemented on the output pin.

    Provides the ability to map/unmap a stream_id to/from an output pin.
--*/
[
    object,
    local,
    uuid (D0E04C47-25B8-4369-925A-362A01D95444),
    pointer_default(unique)
]
interface IMPEG2StreamIdMap : IUnknown
{
    HRESULT
    MapStreamId (
        [in]    ULONG   ulStreamId,                 //  mpeg-2 stream_id
        [in]    DWORD   MediaSampleContent,         //  #define'd above IEnumStreamIdMap
        [in]    ULONG   ulSubstreamFilterValue,     //  filter value
        [in]    int     iDataOffset                 //  elementary stream offset
        ) ;

    HRESULT
    UnmapStreamId (
        [in]    ULONG   culStreamId,                //  number of stream_id's in pulStreamId
        [in]    ULONG * pulStreamId                 //  array of stream_id's to unmap
        ) ;

    HRESULT
    EnumStreamIdMap (
        [out]   IEnumStreamIdMap ** ppIEnumStreamIdMap
        ) ;
} ;


//  Register a service provider with the filter graph
[
        object,
        local,
        uuid(7B3A2F01-0751-48DD-B556-004785171C54),
        pointer_default(unique)
]
interface IRegisterServiceProvider : IUnknown
{
        // registers one service into it's internal table.. Object is refcounted.
        //   register a NULL value to remove the service
        HRESULT RegisterService([in] REFGUID guidService, [in] IUnknown *pUnkObject);
};



//---------------------------------------------------------------------
//
// IAMClockSlave interface
//
// When the audio renderer is slaving to a separate graph clock this
// interface provides a way for an app to specify how closely in sync
// the slaving renderer should try to stay to the graph clock. Note that
// using a larger tolerance for a video & audio playback graph will likely
// result in looser a/v sync, so it recommended not to change this setting
// except under special circumstances.
//
//---------------------------------------------------------------------

//
// Used to set/get the error tolerance used by a slaving audio renderer
//
[
object,
    uuid(9FD52741-176D-4b36-8F51-CA8F933223BE),
    pointer_default(unique)
]
interface IAMClockSlave : IUnknown
{
    // set millisecond value to use for slaving tolerance
    // the allowed range is 1 to 1000ms
    HRESULT SetErrorTolerance (
        [in]  DWORD dwTolerance
    );

    // get millisecond value currently being used for slaving tolerance
    HRESULT GetErrorTolerance (
        [out]  DWORD *pdwTolerance
    );
};



//---------------------------------------------------------------------
//
// IAMGraphBuilderCallback interface
//
// Interface which gives the app a chance to configure filters
// before a connection is attempted.
//
// If this interface is supported by the site passed in to the graph
// via IObjectWithSite::SetSite, the graph will call back with each
// filter it creates as part of the Render or Connect process. Does
// not call back for source filters. Filter may be discarded and not
// used in graph or may be connected and disconnected more than once
//
// The callback occurs with the graph lock held, so do not call into
// the graph again and do not wait on other threads calling into the
// graph.
//
//---------------------------------------------------------------------

[
    object,
    uuid(4995f511-9ddb-4f12-bd3b-f04611807b79),
    local,
    pointer_default(unique)
]
interface IAMGraphBuilderCallback : IUnknown
{
    // graph builder selected a filter to create and attempt to
    // connect. failure indicates filter should be rejected.
    HRESULT SelectedFilter(
        [in] IMoniker *pMon
        );

    // app configures filter during this call. failure indicates
    // filter should be rejected.
    HRESULT CreatedFilter(
        [in] IBaseFilter *pFil
        );
};

cpp_quote("#ifdef __cplusplus")
cpp_quote("#ifndef _IAMFilterGraphCallback_")
cpp_quote("#define _IAMFilterGraphCallback_")
cpp_quote("// Note: Because this interface was not defined as a proper interface it is")
cpp_quote("//       supported under C++ only. Methods aren't stdcall.")
cpp_quote("EXTERN_GUID(IID_IAMFilterGraphCallback,0x56a868fd,0x0ad4,0x11ce,0xb0,0xa3,0x0,0x20,0xaf,0x0b,0xa7,0x70);")
cpp_quote("interface IAMFilterGraphCallback : public IUnknown")
cpp_quote("{")
cpp_quote("    // S_OK means rendering complete, S_FALSE means retry now.")
cpp_quote("    virtual HRESULT UnableToRender(IPin *pPin) = 0;")
cpp_quote(" ")
cpp_quote("};")
cpp_quote("#endif // _IAMFilterGraphCallback_")
cpp_quote("#endif")

//------------------------------------------------------------------------------
// File: EncAPI.idl
//
// Desc: Encoder (and future decoder) interface definitions.
//
// Copyright (c) 1992 - 2002, Microsoft Corporation.  All rights reserved.
//------------------------------------------------------------------------------

struct CodecAPIEventData
{
    GUID guid;
    DWORD   dataLength;
    DWORD   reserved[3];
    // BYTE data[dataLength];
};

interface   IStream;                     //  forward declaration
//
//  Applications can pass the CODECAPI_VIDEO_ENCODER to IsSupported to test for video encoders
//  Similarly, the GUIDs for audio encoders, video decoders, audio decoders and muxes can be
//  used to test for the codec classification
//
//  See uuids.h for a more detailed list.
//
[
    object,
    uuid(901db4c7-31ce-41a2-85dc-8fa0bf41b8da),
    pointer_default(unique)
]
interface ICodecAPI : IUnknown
{
    //
    // IsSupported():
    //
    // Query whether a given parameter is supported.
    //
    HRESULT
    IsSupported (
        [in] const GUID *Api
        );

    //
    // IsModifiable
    //
    // Query whether a given parameter can be changed given the codec selection
    // and other parameter selections.
    //
    HRESULT
    IsModifiable (
        [in] const GUID *Api
        );

    //
    // GetParameterRange():
    //
    // Returns the valid range of values that the parameter supports should
    // the parameter support a stepped range as opposed to a list of specific
    // values.  The support is [ValueMin .. ValueMax] by SteppingDelta.
    //
    // Ranged variant types must fall into one of the below types.  Each
    // parameter will, by definition, return a specific type.
    //
    // If the range has no stepping delta (any delta will do), the Stepping
    // delta will be empty (VT_EMPTY).
    //
    HRESULT
    GetParameterRange (
        [in] const GUID *Api,
        [out] VARIANT *ValueMin,
        [out] VARIANT *ValueMax,
        [out] VARIANT *SteppingDelta
        );

    //
    // GetParameterValues():
    //
    // Returns the list of values supported by the given parameter as a
    // COM allocated array.  The total number of values will be placed in
    // the ValuesCount parameter and the Values array will contain the
    // individual values.  This array must be freed by the caller through
    // CoTaskMemFree().
    //
    HRESULT
    GetParameterValues (
        [in] const GUID *Api,
        [out, size_is(,*ValuesCount)] VARIANT **Values,
        [out] ULONG *ValuesCount
        );

    //
    // GetDefaultValue():
    //
    // Get the default value for a parameter, if one exists.  Otherwise,
    // an error will be returned.
    //
    HRESULT
    GetDefaultValue (
        [in] const GUID *Api,
        [out] VARIANT *Value
        );

    //
    // GetValue():
    //
    // Get the current value of a parameter.
    //
    HRESULT
    GetValue (
        [in] const GUID *Api,
        [out] VARIANT *Value
        );

    //
    // SetValue():
    //
    // Set the current value of a parameter.
    //
    HRESULT
    SetValue (
        [in] const GUID *Api,
        [in] VARIANT *Value
        );

    // new methods beyond IEncoderAPI

    //
    // RegisterForEvent():
    //
    // Enable events to be reported for the given event GUID.  For DShow
    // events, the event is returned as
    //      (EC_CODECAPI_EVENT, lParam=userData, lParam2=CodecAPIEventData* Data)
    // where
    //      - the CodecAPIEventData is COM allocated memory and must be handled and freed
    //        by the application using CoTaskMemFree().
    //      - the userData is the same pointer passed to RegisterForEvent
    //
    // Each data block starts with the following structure:
    //      struct CodecAPIEventData
    //      {
    //          GUID guid;
    //          DWORD dataLength;
    //          DWORD reserved[3];     // pad to 16 byte alignment
    //          BYTE data[dataLength];
    //      }
    // The guid parameter identifies the event. The data associated with the event follows the
    // structure (represented by the variable length BYTE data[dataLength] array).
    //
    // If guid is equal to CODECAPI_CHANGELISTS, then data is an array of GUIDs that changed as
    // a result of setting the parameter, as follows:
    //      GUID    changedGuids[ header.dataLength / sizeof(GUID) ]
    //
    // The current array is limited, so a driver may send multiple messages if the array size is
    // exceeded.
    //
    HRESULT
    RegisterForEvent (
        [in] const GUID *Api,
        [in] LONG_PTR userData
        );

    //
    // UnregisterForEvent():
    //
    // Disable event reporting for the given event GUID.
    //
    HRESULT
    UnregisterForEvent (
        [in] const GUID *Api
        );

    //
    // SetAllDefaults
    //
    HRESULT SetAllDefaults(void);

    //
    // Extended SetValue & SetAllDefaults:
    //
    // Changes the current value of a parameter and returns back an alteration list
    //
    //  The secondary arguments return back a list of other settings
    //  that changed as a result of the SetValue() call (for UI updates etc)
    //  The client must free the buffer.
    //
    HRESULT
    SetValueWithNotify (
        [in] const GUID *Api,
        [in] VARIANT *Value,
        [out, size_is(,*ChangedParamCount)] GUID **ChangedParam,
        [out] ULONG *ChangedParamCount
        );

    //
    // SetAllDefaultsWithNotify
    //
    HRESULT SetAllDefaultsWithNotify(
        [out, size_is(,*ChangedParamCount)] GUID **ChangedParam,
        [out] ULONG *ChangedParamCount
        );
    //
    //  GetAllSettings
    //      Load the current settings from a stream
    //
    HRESULT GetAllSettings( [in] IStream* );

    //
    //  SetAllSettings
    //      Save the current settings to a stream
    //
    HRESULT SetAllSettings( [in] IStream* );

    //
    //  SetAllSettingsWithNotify
    //
    HRESULT SetAllSettingsWithNotify( IStream*,
        [out, size_is(,*ChangedParamCount)] GUID **ChangedParam,
        [out] ULONG *ChangedParamCount );
}

[
        object,
        local,
        uuid(a8809222-07bb-48ea-951c-33158100625b),
        pointer_default(unique)
]
interface IGetCapabilitiesKey : IUnknown
{
        HRESULT GetCapabilitiesKey( [out] HKEY* pHKey );
};

// -----------------------------------------------------------------------------------------
// From this point on, this is retained for backwards compatiblity only
// Do not use this for future encoders
// -----------------------------------------------------------------------------------------
[
    object,
    uuid(70423839-6ACC-4b23-B079-21DBF08156A5),
    pointer_default(unique)
]
interface IEncoderAPI : IUnknown
{
    HRESULT IsSupported ( [in] const GUID *Api );
    HRESULT IsAvailable ( [in] const GUID *Api );
    HRESULT GetParameterRange ( [in] const GUID *Api,
        [out] VARIANT *ValueMin, [out] VARIANT *ValueMax,
        [out] VARIANT *SteppingDelta );
    HRESULT GetParameterValues ( [in] const GUID *Api,
        [out, size_is(,*ValuesCount)] VARIANT **Values,
        [out] ULONG *ValuesCount );
    HRESULT GetDefaultValue ( [in] const GUID *Api, [out] VARIANT *Value );
    HRESULT GetValue ( [in] const GUID *Api, [out] VARIANT *Value );
    HRESULT SetValue ( [in] const GUID *Api, [in] VARIANT *Value );
}

[
    object,
    uuid(02997C3B-8E1B-460e-9270-545E0DE9563E),
    pointer_default(unique)
]
interface IVideoEncoder : IEncoderAPI
{
}
//---------------------------------------------------------------------
//
// Old Encoder API Interfaces
//
//---------------------------------------------------------------------

cpp_quote ("#ifndef __ENCODER_API_DEFINES__")
cpp_quote ("#define __ENCODER_API_DEFINES__")

typedef enum {

    //
    // Bit rate used for encoding is constant
    //
    ConstantBitRate = 0,

    //
    // Bit rate used for encoding is variable with the specified bitrate used
    // as a guaranteed average over a specified window.  The default window
    // size is considered to be 5 minutes.
    //
    VariableBitRateAverage,

    //
    // Bit rate used for encoding is variable with the specified bitrate used
    // as a peak rate over a specified window.  The default window size
    // is considered to be 500ms (classically one GOP).
    //
    VariableBitRatePeak

} VIDEOENCODER_BITRATE_MODE;

cpp_quote ("#endif // __ENCODER_API_DEFINES__")

cpp_quote("#define AM_GETDECODERCAP_QUERY_VMR_SUPPORT   0x00000001")
cpp_quote("#define      VMR_NOTSUPPORTED                0x00000000")
cpp_quote("#define      VMR_SUPPORTED                   0x00000001")

cpp_quote("#define AM_QUERY_DECODER_VMR_SUPPORT         0x00000001")
cpp_quote("#define AM_QUERY_DECODER_DXVA_1_SUPPORT      0x00000002")

cpp_quote("#define AM_QUERY_DECODER_DVD_SUPPORT         0x00000003")
cpp_quote("#define AM_QUERY_DECODER_ATSC_SD_SUPPORT     0x00000004")
cpp_quote("#define AM_QUERY_DECODER_ATSC_HD_SUPPORT     0x00000005")
cpp_quote("#define AM_GETDECODERCAP_QUERY_VMR9_SUPPORT  0x00000006")

cpp_quote("#define      DECODER_CAP_NOTSUPPORTED        0x00000000")
cpp_quote("#define      DECODER_CAP_SUPPORTED           0x00000001")

[
        object,
        local,
        uuid(c0dff467-d499-4986-972b-e1d9090fa941),
        pointer_default(unique)
]
interface IAMDecoderCaps : IUnknown
{
        HRESULT GetDecoderCaps([in] DWORD dwCapIndex, [out] DWORD* lpdwCap);
};

///////////////////////////////////////////////////////////////////////////////
//
// IAMCertifiedOutputProtection
//
///////////////////////////////////////////////////////////////////////////////
typedef struct _AMCOPPSignature {
    BYTE        Signature[256];
} AMCOPPSignature;

typedef struct _AMCOPPCommand {
    GUID    macKDI;             //   16 bytes
    GUID    guidCommandID;      //   16 bytes
    DWORD   dwSequence;         //    4 bytes
    DWORD   cbSizeData;         //    4 bytes
    BYTE    CommandData[4056];  // 4056 bytes (4056+4+4+16+16 = 4096)
}  AMCOPPCommand, *LPAMCOPPCommand;

typedef struct _AMCOPPStatusInput {
    GUID    rApp;               //   16 bytes
    GUID    guidStatusRequestID;//   16 bytes
    DWORD   dwSequence;         //    4 bytes
    DWORD   cbSizeData;         //    4 bytes
    BYTE    StatusData[4056];   // 4056 bytes (4056+4+4+16+16 = 4096)
} AMCOPPStatusInput, *LPAMCOPPStatusInput;

typedef struct _AMCOPPStatusOutput {
    GUID    macKDI;             //   16 bytes
    DWORD   cbSizeData;         //    4 bytes
    BYTE    COPPStatus[4076];   // 4076 bytes (4076+16+4 = 4096)
} AMCOPPStatusOutput, *LPAMCOPPStatusOutput;


[
        object,
        local,
        uuid(6feded3e-0ff1-4901-a2f1-43f7012c8515),
        pointer_default(unique)
]
interface IAMCertifiedOutputProtection : IUnknown
{
    HRESULT KeyExchange (
        [out]   GUID*  pRandom,             // 128-bit random number generated by Graphics Driver
        [out]   BYTE** VarLenCertGH,        // Graphics Hardware certificate, memory released by CoTaskMemFree
        [out]   DWORD* pdwLengthCertGH);    // Length of Graphics Hardware certificate

    HRESULT SessionSequenceStart(
        [in]    AMCOPPSignature*pSig);      // Concatenation of 128-bit random data security session key,
                                            // 128-bit random data integrity session key, 32-bit random
                                            // starting status sequence number and 32-bit random starting
                                            // command sequence number encrypted with the public key of
                                            // the graphic hardware. This value is 2048 bits long.

    HRESULT ProtectionCommand(
        [in]    const AMCOPPCommand* cmd);  // Encrypted command

    HRESULT ProtectionStatus(
        [in]    const AMCOPPStatusInput* pStatusInput,  // Encrypted Status request
        [out]   AMCOPPStatusOutput* pStatusOutput);     // Encrypted Status results
};