cttime.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 __CTTIME_H__
#define __CTTIME_H__

class CTrackTimeInfo
{
public:
    UINT32 m_ulTrackStartTime;
    UINT32 m_ulTrackEndTime;
    UINT32 m_ulDelay;
    INT32 m_lOffset;

    BOOL m_bForceTrackStartTime;
    BOOL m_bForceTrackEndTime;
    BOOL m_bForceTrackDelay;
    
    CTrackTimeInfo(CTrackTimeInfo*& pTimeInfo)
    {
	m_ulTrackStartTime = pTimeInfo->m_ulTrackStartTime;
	m_ulTrackEndTime = pTimeInfo->m_ulTrackEndTime;
	m_ulDelay = pTimeInfo->m_ulDelay;
	m_lOffset = pTimeInfo->m_lOffset;

	m_bForceTrackStartTime = pTimeInfo->m_bForceTrackStartTime;
	m_bForceTrackEndTime = pTimeInfo->m_bForceTrackEndTime;
	m_bForceTrackDelay = pTimeInfo->m_bForceTrackDelay;
    }
    CTrackTimeInfo(IHXValues* pHeaderValues)
	: m_bForceTrackStartTime(FALSE)
	, m_bForceTrackEndTime(FALSE)
	, m_bForceTrackDelay(FALSE)
    {
	m_ulTrackStartTime = 0;
	if (HXR_OK == pHeaderValues->GetPropertyULONG32("TrackStartTime", m_ulTrackStartTime))
	{
	    m_bForceTrackStartTime = TRUE;
	}

	m_ulDelay = 0;
	if (HXR_OK == pHeaderValues->GetPropertyULONG32("Delay", m_ulDelay))
	{
	    m_bForceTrackDelay = TRUE;
	}

	m_ulTrackEndTime = 0;
	if (HXR_OK == pHeaderValues->GetPropertyULONG32("TrackEndTime", m_ulTrackEndTime))
	{
	    m_bForceTrackEndTime = TRUE;
	}

	m_lOffset = m_ulTrackStartTime  - m_ulDelay;
    }

    UINT32 AdjustTime(UINT32 ulTime)
    {
	UINT32 ulRetVal = 0;
	if (m_lOffset < 0 && ulTime < (UINT32) (-m_lOffset))
	{
	    ulRetVal = 0;
	}
	else
	{
	    ulRetVal = ulTime + m_lOffset;
	}

	return ulRetVal;
    }
};
#endif /* _CTTIME__H_ */