wmbufctl.h
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- /* ***** BEGIN LICENSE BLOCK *****
- * Source last modified: $Id: wmbufctl.h,v 1.2.8.1 2004/07/09 02:05:58 hubbe Exp $
- *
- * Portions Copyright (c) 1995-2004 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 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the current version of the RealNetworks Community
- * Source License (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.
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL") in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your version of
- * this file only under the terms of the GPL, and not to allow others
- * to use your version of this file under the terms of either the RPSL
- * or RCSL, indicate your decision by deleting the provisions above
- * and replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient may
- * use your version of this file under the terms of any one of the
- * RPSL, the RCSL or the GPL.
- *
- * 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 WMBUFCTL_H
- #define WMBUFCTL_H
- #include "hxbufctl.h"
- class HXWatermarkBufferControl : public IHXWatermarkBufferControl
- {
- public:
- HXWatermarkBufferControl();
-
- /*
- * IUnknown methods
- */
- STDMETHOD(QueryInterface) (THIS_
- REFIID riid,
- void** ppvObj);
- STDMETHOD_(ULONG32,AddRef) (THIS);
- STDMETHOD_(ULONG32,Release) (THIS);
- /*
- * IHXBufferControl method
- */
- /************************************************************************
- * Method:
- * IHXBufferControl::Init
- * Purpose:
- * Initialize the buffer control object with a context
- * so it can find the interfaces it needs to do buffer
- * control
- */
- STDMETHOD(Init) (THIS_ IUnknown* pContext);
- /************************************************************************
- * Method:
- * IHXBufferControl::OnBuffering
- * Purpose:
- * Called while buffering
- */
- STDMETHOD(OnBuffering) (THIS_ UINT32 ulRemainingInMs,
- UINT32 ulRemainingInBytes);
- /************************************************************************
- * Method:
- * IHXBufferControl::OnBufferingDone
- * Purpose:
- * Called when buffering is done
- */
- STDMETHOD(OnBufferingDone)(THIS);
- /************************************************************************
- * Method:
- * IHXBufferControl::OnResume
- * Purpose:
- * Called when playback is resumed
- */
- STDMETHOD(OnResume) (THIS);
-
- /************************************************************************
- * Method:
- * IHXBufferControl::OnPause
- * Purpose:
- * Called when playback is paused
- */
- STDMETHOD(OnPause) (THIS);
- /************************************************************************
- * Method:
- * IHXBufferControl::OnSeek
- * Purpose:
- * Called when a seek occurs
- */
- STDMETHOD(OnSeek) (THIS);
- /************************************************************************
- * Method:
- * IHXBufferControl::OnClipEnd
- * Purpose:
- * Called when we get the last packet in the clip
- */
- STDMETHOD(OnClipEnd) (THIS);
- /************************************************************************
- * Method:
- * IHXBufferControl::Close()
- * Purpose:
- * Called when the owner of this object wishes to shutdown
- * and destroy this object. This call causes the buffer control
- * object to release all it's interfaces references.
- */
- STDMETHOD(Close)(THIS);
- /*
- * IHXWatermarkBufferControl method
- */
- /************************************************************************
- * Method:
- * IHXWatermarkBufferControl::SetSource
- * Purpose:
- * Tells the object what HXSource object it is associated with.
- */
- STDMETHOD(SetSource)(THIS_ HXSource* pSource);
- /************************************************************************
- * Method:
- * IHXWatermarkBufferControl::OnBufferReport
- * Purpose:
- * Initiates control operations based on buffering information.
- *
- */
- STDMETHOD(OnBufferReport)(THIS_ UINT32 ulBufferInMs,
- UINT32 ulBuffer);
- /************************************************************************
- * Method:
- * IHXWatermarkBufferControl::ClearChillState
- * Purpose:
- * Sets the chill state to NONE
- *
- */
- STDMETHOD(ClearChillState)(THIS);
- private:
- ~HXWatermarkBufferControl();
- HX_RESULT ChangeAccelerationStatus(BOOL bMayBeAccelerated,
- BOOL bUseAccelerationFactor,
- UINT32 ulAccelerationFactor);
- HX_RESULT ResetAccelState();
- ULONG32 m_lRefCount;
- HXSource* m_pSource;
- enum ChillState { HX_NONE, CHILL, HALF, HUNDRETH };
- enum ChillState m_ChillState;
- };
- #endif /* WMBUFCTL_H */