hxrendr.h

linux下的一款播放器

				ULONG32		    ulFlags,
				UINT16		    unPercentComplete) PURE;

    /************************************************************************
     *	Method:
     *	    IHXRenderer::GetDisplayType
     *	Purpose:
     *	    Called by client engine to ask the renderer for it's preferred
     *	    display type. When layout information is not present, the 
     *	    renderer will be asked for it's prefered display type. Depending
     *	    on the display type a buffer of additional information may be 
     *	    needed. This buffer could contain information about preferred
     *	    window size.
     *
     */
    STDMETHOD(GetDisplayType)	(THIS_
				REF(HX_DISPLAY_TYPE)	ulFlags,
				REF(IHXBuffer*)	pBuffer) PURE;

    /************************************************************************
     *	Method:
     *	    IHXRenderer::OnEndofPackets
     *	Purpose:
     *	    Called by client engine to inform the renderer that all the
     *	    packets have been delivered. However, if the user seeks before
     *	    EndStream() is called, renderer may start getting packets again
     *	    and the client engine will eventually call this function again.
     */
    STDMETHOD(OnEndofPackets)	(THIS) PURE;
};

// $Private:
/****************************************************************************
 * 
 *  Interface:
 * 
 *	IHXPersistentRenderer
 * 
 *  Purpose:
 * 
 *	Interface exposed by a persistent renderer such as RAM and SMIL
 * 
 *  IID_IHXPersistentRenderer:
 * 
 *	{00000301-0901-11d1-8B06-00A024406D59}
 * 
 */

DEFINE_GUID(IID_IHXPersistentRenderer, 0x00000301, 0x901, 0x11d1, 0x8b, 0x6, 0x0, 
			0xa0, 0x24, 0x40, 0x6d, 0x59);

#undef  INTERFACE
#define INTERFACE   IHXPersistentRenderer

DECLARE_INTERFACE_(IHXPersistentRenderer, IUnknown)
{
    /*
     *	IUnknown methods
     */
    STDMETHOD(QueryInterface)		(THIS_
					REFIID riid,
					void** ppvObj) PURE;

    STDMETHOD_(ULONG32,AddRef)		(THIS) PURE;

    STDMETHOD_(ULONG32,Release)		(THIS) PURE;

    /*
     *	IHXPersistentRenderer methods
     */

    /************************************************************************
     *	Method:
     *	    IHXPersistentRenderer::InitPersistent
     *	Purpose:
     *	    Initialize the persistent renderer
     */
    STDMETHOD(InitPersistent)		(THIS_
					UINT32			ulPersistentComponentID,
					UINT16			uPersistentGroupID,
					UINT16			uPersistentTrackID,
					IHXPersistentRenderer*	pPersistentParent) PURE;

    /************************************************************************
     *	Method:
     *	    IHXPersistentRenderer::GetPersistentID
     *	Purpose:
     *	    Get persistent component ID
     */
    STDMETHOD(GetPersistentID)		(THIS_
					REF(UINT32) ulPersistentComponentID) PURE;

    /************************************************************************
     *	Method:
     *	    IHXPersistentRenderer::GetPersistentProperties
     *	Purpose:
     *	    get properties of the persistent renderer such as the type and version#
     */
    STDMETHOD(GetPersistentProperties)	(THIS_
                               		REF(IHXValues*)    pProperties) PURE;				

    /************************************************************************
     *	Method:
     *	    IHXPersistentRenderer::GetElementProperties
     *	Purpose:
     *	    get properties of the element(track) spawned by this persistent renderer
     */
    STDMETHOD(GetElementProperties)	(THIS_
					UINT16		    uGroupID,
					UINT16		    uTrackID,
                               		REF(IHXValues*)    pProperties) PURE;				

    /************************************************************************
    *  Method:
    *      IHXPersistentRenderer::AttachElementLayout
    *  Purpose:
    *	   attach the site created in its persitent parent as the root layout 
    */
    STDMETHOD(AttachElementLayout)	(THIS_
					UINT16		    uGroupID,
					UINT16		    uTrackID,
					IHXRenderer*	    pRenderer,
					IHXStream*	    pStream,
					IHXValues*	    pProps) PURE;

    /************************************************************************
    *  Method:
    *      IHXPersistentRenderer::DetachElementLayout
    *  Purpose:
    *	   Detach the root layout created by its persistent parent
    */
    STDMETHOD(DetachElementLayout)	(THIS_
					IUnknown*	    pLSG) PURE;

    /************************************************************************
     *	Method:
     *	    IHXPersistentRenderer::GetElementShowStatus
     *	Purpose:
     *	    get element's status(such as its layout's show property) 
     *      at current time
     */
    STDMETHOD(GetElementStatus)		(THIS_
					UINT16		    uGroupID,
					UINT16		    uTrackID,
					UINT32		    ulCurrentTime,
					REF(IHXValues*)    pStatus) PURE;
};
// $EndPrivate.

// $Private:
/****************************************************************************
 * 
 *  Interface:
 * 
 *	IHXMediaPushdown
 * 
 *  Purpose:
 * 
 *	Al's weird hack interface
 * 
 *  IHXMediaPushdown:
 * 
 *	{00000302-0901-11d1-8B06-00A024406D59}
 * 
 */
DEFINE_GUID(IID_IHXMediaPushdown, 0x00000302, 0x901, 0x11d1, 0x8b, 0x6, 0x0, 
			0xa0, 0x24, 0x40, 0x6d, 0x59);

#undef  INTERFACE
#define INTERFACE   IHXMediaPushdown

DECLARE_INTERFACE_(IHXMediaPushdown, IUnknown)
{
    /*
     * IUnknown methods
     */
    STDMETHOD(QueryInterface)	(THIS_
				REFIID riid,
				void** ppvObj) PURE;

    STDMETHOD_(ULONG32,AddRef)	(THIS) PURE;

    STDMETHOD_(ULONG32,Release)	(THIS) PURE;

    /*
     * IHXMediaPushdown methods
     */
    /************************************************************************
     *  Method:
     *      IHXMediaPushdown::GetCurrentPushdown
     *  Purpose:
     *      Retrieves the current queue depth ("pushdown depth") in milliseconds
     *
     *  Notes:
     *      This is the *decoded* pushdown, not the undecoded pushdown.  Returns
     *      HXR_TIMELINE_SUSPENDED if the stream is paused; HXR_FAIL
     *      if the stream is finished, HXR_OK otherwise.
     */
    STDMETHOD (GetCurrentPushdown) (THIS_ /*OUT*/ 
				    REF(UINT32) ulPushdownMS,
				    REF(UINT32) ulNumFrames) PURE;

    /************************************************************************
     *  Method:
     *      IHXMediaPushdown::IsG2Video
     *  Purpose:
     */
    STDMETHOD_(BOOL, IsG2Video) (THIS) PURE;
};
// $EndPrivate.

/****************************************************************************
 * 
 *  Interface:
 * 
 *	IHXUntimedRenderer
 * 
 *  Purpose:
 * 
 *	Interface exposed by a renderer capable of running faster than real time
 * 
 *  IID_IHXUntimedRenderer:
 * 
 *	{00000303-0901-11d1-8B06-00A024406D59}
 * 
 */

DEFINE_GUID(IID_IHXUntimedRenderer, 0x00000303, 0x901, 0x11d1, 0x8b, 0x6, 0x0, 
			0xa0, 0x24, 0x40, 0x6d, 0x59);

#undef  INTERFACE
#define INTERFACE   IHXUntimedRenderer

DECLARE_INTERFACE_(IHXUntimedRenderer, IUnknown)
{
    STDMETHOD(QueryInterface)		(THIS_
					REFIID riid,
					void** ppvObj) PURE;

    STDMETHOD_(ULONG32,AddRef)		(THIS) PURE;

    STDMETHOD_(ULONG32,Release)		(THIS) PURE;

    STDMETHOD_(BOOL,IsUntimedRendering)(THIS) PURE;
    STDMETHOD_(HX_RESULT,SetUntimedRendering)(THIS_ BOOL) PURE;
};

#endif /* _HXRENDR_H_ */