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/****************************************************************************
*
* $Id: rmarendr.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.
*
*
* RealMedia Architecture Rendering Interfaces.
*
*/
#ifndef _RMARENDR_H_
#define _RMARENDR_H_
/*
* Forward declarations of some interfaces defined or used here-in.
*/
typedef _INTERFACE IRMARenderer IRMARenderer;
typedef _INTERFACE IRMAStream IRMAStream;
typedef _INTERFACE IRMAStreamSource IRMAStreamSource;
typedef _INTERFACE IRMAPlayer IRMAPlayer;
typedef _INTERFACE IRMAClientEngine IRMAClientEngine;
/****************************************************************************
*
* Interface:
*
* IRMARenderer
*
* Purpose:
*
* Interface implemented by all renderers. Parts of this interface are
* called by the client engine to provide data packets to the
* individual renderers.
*
* IID_IRMARenderer:
*
* {00000300-0901-11d1-8B06-00A024406D59}
*
*/
DEFINE_GUID(IID_IRMARenderer, 0x00000300, 0x901, 0x11d1, 0x8b, 0x6, 0x0,
0xa0, 0x24, 0x40, 0x6d, 0x59);
#undef INTERFACE
#define INTERFACE IRMARenderer
typedef ULONG32 RMA_DISPLAY_TYPE;
#define RMA_DISPLAY_NONE 0x00000000
#define RMA_DISPLAY_WINDOW 0x00000001
#define RMA_DISPLAY_SUPPORTS_RESIZE 0x00000002
#define RMA_DISPLAY_SUPPORTS_FULLSCREEN 0x00000004
#define RMA_DISPLAY_SUPPORTS_VIDCONTROLS 0x00000008
DECLARE_INTERFACE_(IRMARenderer, IUnknown)
{
/*
* IUnknown methods
*/
STDMETHOD(QueryInterface) (THIS_
REFIID riid,
void** ppvObj) PURE;
STDMETHOD_(ULONG,AddRef) (THIS) PURE;
STDMETHOD_(ULONG,Release) (THIS) PURE;
/*
* IRMARenderer methods
*/
/************************************************************************
* Method:
* IRMARenderer::GetRendererInfo
* Purpose:
* Returns information vital to the instantiation of rendering
* plugins.
*/
STDMETHOD(GetRendererInfo) (THIS_
REF(const char**)/*OUT*/ pStreamMimeTypes,
REF(UINT32) /*OUT*/ unInitialGranularity
) PURE;
/************************************************************************
* Method:
* IRMARenderer::StartStream
* Purpose:
* Called by client engine to inform the renderer of the stream it
* will be rendering. The stream interface can provide access to
* its source or player. This method also provides access to the
* primary client controller interface.
*
*/
STDMETHOD(StartStream) (THIS_
IRMAStream* pStream,
IRMAPlayer* pPlayer) PURE;
/************************************************************************
* Method:
* IRMARenderer::EndStream
* Purpose:
* Called by client engine to inform the renderer that the stream
* is was rendering is closed.
*
*/
STDMETHOD(EndStream) (THIS) PURE;
/************************************************************************
* Method:
* IRMARenderer::OnHeader
* Purpose:
* Called by client engine when a header for this renderer is
* available. The header will arrive before any packets.
*
*/
STDMETHOD(OnHeader) (THIS_
IRMAValues* pHeader) PURE;
/************************************************************************
* Method:
* IRMARenderer::OnPacket
* Purpose:
* Called by client engine when a packet for this renderer is
* due.
*
*/
STDMETHOD(OnPacket) (THIS_
IRMAPacket* pPacket,
LONG32 lTimeOffset) PURE;
/************************************************************************
* Method:
* IRMARenderer::OnTimeSync
* Purpose:
* Called by client engine to inform the renderer of the current
* time relative to the streams synchronized time-line. The
* renderer should use this time value to update its display or
* render it's stream data accordingly.
*
*/
STDMETHOD(OnTimeSync) (THIS_
ULONG32 ulTime) PURE;
/************************************************************************
* Method:
* IRMARenderer::OnPreSeek
* Purpose:
* Called by client engine to inform the renderer 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:
* IRMARenderer::OnPostSeek
* Purpose:
* Called by client engine to inform the renderer 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:
* IRMARenderer::OnPause
* Purpose:
* Called by client engine to inform the renderer 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:
* IRMARenderer::OnBegin
* Purpose:
* Called by client engine to inform the renderer 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:
* IRMARenderer::OnBuffering
* Purpose:
* Called by client engine to inform the renderer 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:
* IRMARenderer::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(RMA_DISPLAY_TYPE) ulFlags,
REF(IRMABuffer*) pBuffer) PURE;
/************************************************************************
* Method:
* IRMARenderer::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;
};
#endif /* _RMARENDR_H_ */
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