hxsdesc.h
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上传日期:2007-06-06
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- /* ***** 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 _HXSDESC_
- #define _HXSDESC_
- /*
- * Forward declarations of some interfaces defined or used here-in.
- */
- typedef _INTERFACE IUnknown IUnknown;
- struct IHXBuffer;
- struct IHXValues;
- /****************************************************************************
- *
- * Interface:
- *
- * IHXStreamDescription
- *
- * Purpose:
- *
- * This interface allows transforms between IHXValues and stream
- * description formats.
- *
- *
- * IID_IHXStreamDescription:
- *
- * {00001900-0901-11d1-8B06-00A024406D59}
- *
- */
- DEFINE_GUID(IID_IHXStreamDescription, 0x00001900, 0x901, 0x11d1, 0x8b, 0x6, 0x0,
- 0xa0, 0x24, 0x40, 0x6d, 0x59);
- #undef INTERFACE
- #define INTERFACE IHXStreamDescription
- DECLARE_INTERFACE_(IHXStreamDescription, IUnknown)
- {
- /*
- * IUnknown methods
- */
- STDMETHOD(QueryInterface) (THIS_
- REFIID riid,
- void** ppvObj) PURE;
- STDMETHOD_(ULONG32,AddRef) (THIS) PURE;
- STDMETHOD_(ULONG32,Release) (THIS) PURE;
- /*
- * IHXStreamDescription methods
- */
-
- /************************************************************************
- * Method:
- * IHXStreamDescription::GetStreamDescriptionInfo
- * Purpose:
- * Get info to initialize the stream description plugin
- */
- STDMETHOD(GetStreamDescriptionInfo)
- (THIS_
- REF(const char*) /*OUT*/ pMimeTypes) PURE;
- /************************************************************************
- * Method:
- * IHXStreamDescription::GetValues
- * Purpose:
- * Transform a media description string into an IHXValues
- * object.
- */
- STDMETHOD(GetValues) (THIS_
- IHXBuffer* /*IN*/ pDescription,
- REF(UINT16) /*OUT*/ nValues,
- REF(IHXValues**) /*OUT*/ pValueArray) PURE;
- /************************************************************************
- * Method:
- * IHXStreamDescription::GetDescription
- * Purpose:
- * Transform an IHXValues object into a stream description
- * string.
- */
- STDMETHOD(GetDescription) (THIS_
- UINT16 /*IN*/ nValues,
- IHXValues** /*IN*/ pValueArray,
- REF(IHXBuffer*) /*OUT*/ pDescription) PURE;
- };
- /****************************************************************************
- *
- * Interface:
- *
- * IHXRTPPayloadInfo
- *
- * Purpose:
- *
- * This interface exposes the conversion table used to convert RTP
- * timestamps to RMA timestamps and whether or not the content is
- * timestamp deliverable.
- *
- *
- * IID_IHXRTPPayloadInfo:
- *
- * {00001901-0901-11d1-8B06-00A024406D59}
- *
- */
- DEFINE_GUID(IID_IHXRTPPayloadInfo, 0x00001901, 0x901, 0x11d1, 0x8b, 0x6, 0x0,
- 0xa0, 0x24, 0x40, 0x6d, 0x59);
- #undef INTERFACE
- #define INTERFACE IHXRTPPayloadInfo
- DECLARE_INTERFACE_(IHXRTPPayloadInfo, IUnknown)
- {
- /*
- * IUnknown methods
- */
- STDMETHOD(QueryInterface) (THIS_
- REFIID riid,
- void** ppvObj) PURE;
- STDMETHOD_(ULONG32,AddRef) (THIS) PURE;
- STDMETHOD_(ULONG32,Release) (THIS) PURE;
- /*
- * IHXRTPPayloadInfo methods
- */
-
- /************************************************************************
- * Method:
- * IHXRTPPayloadInfo::PayloadSupported
- * Purpose:
- * Returns TRUE if this payload type is handled by this interface
- */
- STDMETHOD_(BOOL, IsPayloadSupported) (THIS_
- UINT32 /*IN*/ ulRTPPayloadType) PURE;
- /************************************************************************
- * Method:
- * IHXRTPPayloadInfo::GetTimestampConversionFactors
- * Purpose:
- * Retrieves the RTP and RMA factors for RTP to RMA timestamp ratio.
- * RTP->RMA is RTPTimestamp * HXFactor / RTPFactor
- * RMA->RTP is HXTimestamp * RTPFactor / HXFactor
- *
- * Note:
- * Does not check if the payload type is supported
- */
- STDMETHOD(GetTimestampConversionFactors) (THIS_
- UINT32 /*IN*/ ulRTPPayloadType,
- REF(UINT32) /*OUT*/ ulRTPFactor,
- REF(UINT32) /*OUT*/ ulHXFactor) PURE;
- /************************************************************************
- * Method:
- * IHXRTPPayloadInfo::IsTimestampDeliverable
- * Purpose:
- * Returns TRUE if this payload type is timestamp deliverable
- */
- STDMETHOD_(BOOL, IsTimestampDeliverable) (THIS_
- UINT32 /*IN*/ ulRTPPayloadType) PURE;
- };
- /****************************************************************************
- *
- * Interface:
- *
- * IHXStreamDescriptionSettings
- *
- * Purpose:
- *
- * Manage settings related to stream description
- *
- *
- * IID_IHXStreamDescriptionOptions:
- *
- * {00001902-0901-11d1-8B06-00A024406D59}
- *
- */
- DEFINE_GUID(IID_IHXStreamDescriptionSettings, 0x00001902, 0x901, 0x11d1, 0x8b, 0x6, 0x0,
- 0xa0, 0x24, 0x40, 0x6d, 0x59);
- #undef INTERFACE
- #define INTERFACE IHXStreamDescriptionSettings
- DECLARE_INTERFACE_(IHXStreamDescriptionSettings, IUnknown)
- {
- /*
- * IUnknown methods
- */
- STDMETHOD(QueryInterface) (THIS_ REFIID riid, void** ppvObj) PURE;
- STDMETHOD_(ULONG32,AddRef) (THIS) PURE;
- STDMETHOD_(ULONG32,Release) (THIS) PURE;
- /*
- * IHXStreamDescriptionSettings methods
- */
- STDMETHOD(SetOption)(const char* pKey, IHXBuffer* pVal) PURE;
- STDMETHOD(GetOption)(const char* pKey, REF(IHXBuffer*) pVal) PURE;
-
- };
- #endif /* _HXSDESC_ */