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/****************************************************************************
*
* $Id: rmaclsnk.h 7 2003-05-30 02:18:02Z gabest $
*
* Copyright (C) 1995-1999 RealNetworks, Inc. All rights reserved.
*
* http://www.real.com/devzone
*
* This program contains proprietary
* information of Progressive Networks, Inc, and is licensed
* subject to restrictions on use and distribution.
*
*
* Client Advise Sink Interfaces
*
*/
#ifndef _RMACLSNK_H_
#define _RMACLSNK_H_
/*
* Forward declarations of some interfaces defined or used here-in.
*/
typedef _INTERFACE IRMAClientAdviseSink IRMAClientAdviseSink;
/****************************************************************************
*
* Interface:
*
* IRMAClientAdviseSink
*
* Purpose:
*
* Interface supplied by client to core to receive notifications of
* status changes.
*
* IID_IRMAClientAdviseSink:
*
* {00000B00-0901-11d1-8B06-00A024406D59}
*
*/
DEFINE_GUID(IID_IRMAClientAdviseSink, 0x00000B00, 0x901, 0x11d1, 0x8b, 0x6, 0x0,
0xa0, 0x24, 0x40, 0x6d, 0x59);
#undef INTERFACE
#define INTERFACE IRMAClientAdviseSink
DECLARE_INTERFACE_(IRMAClientAdviseSink, IUnknown)
{
/*
* IUnknown methods
*/
STDMETHOD(QueryInterface) (THIS_
REFIID riid,
void** ppvObj) PURE;
STDMETHOD_(ULONG,AddRef) (THIS) PURE;
STDMETHOD_(ULONG,Release) (THIS) PURE;
/*
* IRMAClientAdviseSink methods
*/
/************************************************************************
* Method:
* IRMAClientAdviseSink::OnPosLength
* Purpose:
* Called to advise the client that the position or length of the
* current playback context has changed.
*/
STDMETHOD(OnPosLength) (THIS_
UINT32 ulPosition,
UINT32 ulLength) PURE;
/************************************************************************
* Method:
* IRMAClientAdviseSink::OnPresentationOpened
* Purpose:
* Called to advise the client a presentation has been opened.
*/
STDMETHOD(OnPresentationOpened) (THIS) PURE;
/************************************************************************
* Method:
* IRMAClientAdviseSink::OnPresentationClosed
* Purpose:
* Called to advise the client a presentation has been closed.
*/
STDMETHOD(OnPresentationClosed) (THIS) PURE;
/************************************************************************
* Method:
* IRMAClientAdviseSink::OnStatisticsChanged
* Purpose:
* Called to advise the client that the presentation statistics
* have changed.
*/
STDMETHOD(OnStatisticsChanged) (THIS) PURE;
/************************************************************************
* Method:
* IRMAClientAdviseSink::OnPreSeek
* Purpose:
* Called by client engine to inform the client that a seek is
* about to occur. The render is informed the last time for the
* stream's time line before the seek, as well as the first new
* time for the stream's time line after the seek will be completed.
*
*/
STDMETHOD(OnPreSeek) (THIS_
ULONG32 ulOldTime,
ULONG32 ulNewTime) PURE;
/************************************************************************
* Method:
* IRMAClientAdviseSink::OnPostSeek
* Purpose:
* Called by client engine to inform the client that a seek has
* just occurred. The render is informed the last time for the
* stream's time line before the seek, as well as the first new
* time for the stream's time line after the seek.
*
*/
STDMETHOD(OnPostSeek) (THIS_
ULONG32 ulOldTime,
ULONG32 ulNewTime) PURE;
/************************************************************************
* Method:
* IRMAClientAdviseSink::OnStop
* Purpose:
* Called by client engine to inform the client that a stop has
* just occurred.
*
*/
STDMETHOD(OnStop) (THIS) PURE;
/************************************************************************
* Method:
* IRMAClientAdviseSink::OnPause
* Purpose:
* Called by client engine to inform the client that a pause has
* just occurred. The render is informed the last time for the
* stream's time line before the pause.
*
*/
STDMETHOD(OnPause) (THIS_
ULONG32 ulTime) PURE;
/************************************************************************
* Method:
* IRMAClientAdviseSink::OnBegin
* Purpose:
* Called by client engine to inform the client that a begin or
* resume has just occurred. The render is informed the first time
* for the stream's time line after the resume.
*
*/
STDMETHOD(OnBegin) (THIS_
ULONG32 ulTime) PURE;
/************************************************************************
* Method:
* IRMAClientAdviseSink::OnBuffering
* Purpose:
* Called by client engine to inform the client that buffering
* of data is occuring. The render is informed of the reason for
* the buffering (start-up of stream, seek has occurred, network
* congestion, etc.), as well as percentage complete of the
* buffering process.
*
*/
STDMETHOD(OnBuffering) (THIS_
ULONG32 ulFlags,
UINT16 unPercentComplete) PURE;
/************************************************************************
* Method:
* IRMAClientAdviseSink::OnContacting
* Purpose:
* Called by client engine to inform the client is contacting
* hosts(s).
*
*/
STDMETHOD(OnContacting) (THIS_
const char* pHostName) PURE;
};
#endif /* _RMACLSNK_H_ */
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