smpte.h

symbian 下的helix player源代码

/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: smpte.h,v 1.1.1.1.50.3 2004/07/09 01:48:00 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 _SMPTE_H_
#define _SMPTE_H_

class SMPTETimeCode
{
public:

    // constructors
    SMPTETimeCode();
    SMPTETimeCode(UINT32 mSec);
    SMPTETimeCode(int hour, int min, int sec, int frame=0);
    SMPTETimeCode(const char* pTimeCodeString /* format HH:MM:SS.FF */);
    SMPTETimeCode(const SMPTETimeCode& lhs);

    // assignment
    SMPTETimeCode& operator=(const SMPTETimeCode& lhs);

    enum DropFrame    { DROP_FRAME, NON_DROP_FRAME }; 	// default DROP_FRAME
    enum FramesPerSec { FPS_25, FPS_30 };		// default FPS_30

    // conversion
    operator const char*();
    operator UINT32();
    void fromString(const char* pTimeCodeString);

    // arithmetic
    SMPTETimeCode operator+(const SMPTETimeCode& lhs);
    SMPTETimeCode operator-(const SMPTETimeCode& lhs);
    SMPTETimeCode& operator+=(const SMPTETimeCode& lhs);
    SMPTETimeCode& operator-=(const SMPTETimeCode& lhs);

    // comparison
    int compare(const SMPTETimeCode& lhs) const;

    int m_hour;
    int m_minute;
    int m_second;
    int m_frame;

    DropFrame m_dropFrame;
    FramesPerSec m_framesPerSec;
private:
    void toMSec();
    void fromMSec();
    const char* toString();

    CHXString m_asString;
    UINT32 m_mSecs;
};

inline BOOL operator==(const SMPTETimeCode& t1, const SMPTETimeCode& t2)
{
    return t1.compare(t2) == 0;
}

inline BOOL operator!=(const SMPTETimeCode& t1, const SMPTETimeCode& t2)
{
    return t1.compare(t2) != 0;
}

inline BOOL operator<(const SMPTETimeCode& t1, const SMPTETimeCode& t2)
{
    return t1.compare(t2) < 0;
}

inline BOOL operator>(const SMPTETimeCode& t1, const SMPTETimeCode& t2)
{
    return t1.compare(t2) > 0;
}

inline BOOL operator<=(const SMPTETimeCode& t1, const SMPTETimeCode& t2)
{
    return t1.compare(t2) <= 0;
}

inline BOOL operator>=(const SMPTETimeCode& t1, const SMPTETimeCode& t2)
{
    return t1.compare(t2) >= 0;
}

#endif /* _SMPTE_H_ */