hxrasyn.h

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

/* ***** BEGIN LICENSE BLOCK ***** 
 * Version: RCSL 1.0/RPSL 1.0 
 *  
 * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved. 
 *      
 * The contents of this file, and the files included with this file, are 
 * subject to the current version of the RealNetworks Public Source License 
 * Version 1.0 (the "RPSL") available at 
 * http://www.helixcommunity.org/content/rpsl unless you have licensed 
 * the file under the RealNetworks Community Source License Version 1.0 
 * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl, 
 * in which case the RCSL will apply. You may also obtain the license terms 
 * directly from RealNetworks.  You may not use this file except in 
 * compliance with the RPSL or, if you have a valid RCSL with RealNetworks 
 * applicable to this file, the RCSL.  Please see the applicable RPSL or 
 * RCSL for the rights, obligations and limitations governing use of the 
 * contents of the file.  
 *  
 * This file is part of the Helix DNA Technology. RealNetworks is the 
 * developer of the Original Code and owns the copyrights in the portions 
 * it created. 
 *  
 * This file, and the files included with this file, is distributed and made 
 * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
 * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS 
 * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
 * 
 * Technology Compatibility Kit Test Suite(s) Location: 
 *    http://www.helixcommunity.org/content/tck 
 * 
 * Contributor(s): 
 *  
 * ***** END LICENSE BLOCK ***** */ 

#ifndef _HXRASYNC_H_
#define _HXRASYNC_H_

/*
 * Forward declarations of some interfaces defined or used here-in.
 */
typedef _INTERFACE	IUnknown			IUnknown;
typedef _INTERFACE	IHXRealAudioSync		IHXRealAudioSync;

/****************************************************************************
 * 
 *  Interface:
 * 
 *      IHXRealAudioSync
 * 
 *  Purpose:
 *
 *  This is a private interface used by RealAudio renderer to allow lip sync 
 *  with the RealVideo stream. It is exposed by IHXAudioStream
 * 
 *  IID_IHXRealAudioSync:
 * 
 *      {00000B00-b4c8-11d0-9995-00a0248da5f0}
 * 
 */
DEFINE_GUID(IID_IHXRealAudioSync, 0x00000B00, 0xb4c8, 0x11d0, 0x99, 0x95, 
				    0x0, 0xa0, 0x24, 0x8d, 0xa5, 0xf0);
#undef  INTERFACE
#define INTERFACE   IHXRealAudioSync

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

    STDMETHOD_(ULONG32,AddRef)		(THIS) PURE;

    STDMETHOD_(ULONG32,Release)		(THIS) PURE;
    
    /*
     *  IHXRealAudioSync methods
     */

    /************************************************************************
     *  Method:
     *      IHXRealAudioSync::Register
     *  Purpose:
     */
    STDMETHOD(Register)	(THIS) PURE;

    /************************************************************************
     *  Method:
     *      IHXRealAudioSync::UnRegister
     *  Purpose:
     */
    STDMETHOD(UnRegister)	(THIS) PURE;

    /************************************************************************
     *  Method:
     *      IHXRealAudioSync::FudgeTimestamp
     *  Purpose:
     *	    Tell the audio stream about the relationship between the number 
     *	    of bytes written to the actual timestamp.
     *	    
     */
    STDMETHOD(FudgeTimestamp)	(THIS_
				UINT32 /*IN*/ ulNumberofBytes,
				UINT32 /*IN*/ ulTimestamp
	    			) PURE;
};

#endif /*_HXRASYNC_H_*/