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///////////////////////////////////////////////////////////////////////////////
//
// The contents of this file are subject to the Mozilla Public License
// Version 1.1 (the "License"); you may not use this file except in
// compliance with the License. You may obtain a copy of the License at
// http://www.mozilla.org/MPL/
//
// Software distributed under the License is distributed on an "AS IS"
// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
// License for the specific language governing rights and limitations
// under the License.
//
// The Original Code is MP4v2.
//
// The Initial Developer of the Original Code is Kona Blend.
// Portions created by Kona Blend are Copyright (C) 2008.
// All Rights Reserved.
//
// Contributors:
// Kona Blend, kona8lend@@gmail.com
//
///////////////////////////////////////////////////////////////////////////////
#ifndef MP4V2_UTIL_TIMECODE_H
#define MP4V2_UTIL_TIMECODE_H
namespace mp4v2 { namespace util {
///////////////////////////////////////////////////////////////////////////////
/// Class representing SMPTE timecode.
///
/// Objects of this class represent a specific time or duration and can
/// be converted to/from string values, and various epochs.
///
/// The standard pattern for string representation is as follows:
/// @li HH:MM:SS:FF
/// @li HH:MM:SS.DDD
///
/// where:
/// @li <b>HH</b> specifies hours
/// @li <b>MM</b> specifies minutes
/// @li <b>SS</b> specifies seconds
/// @li <b>:</b> specifies normal timecode
/// @li <b>FF</b> specifies the frame number
/// @li <b>.</b> specifies decimal fractions of a second follow
/// @li <b>DDD</b> specifies decimal fractions of a second, rounded down to closest scale
///
class MP4V2_EXPORT Timecode {
public:
enum Format {
FRAME,
DECIMAL,
};
private:
double _scale;
uint64_t _duration;
Format _format;
string _svalue;
uint64_t _hours;
uint64_t _minutes;
uint64_t _seconds;
uint64_t _subseconds;
public:
const double& scale;
const uint64_t& duration;
const Format& format;
const string& svalue;
const uint64_t& hours;
const uint64_t& minutes;
const uint64_t& seconds;
const uint64_t& subseconds;
public:
Timecode( const Timecode& );
explicit Timecode( const string&, double = 1.0 );
explicit Timecode( uint64_t = 0, double = 1.0 );
Timecode& operator= ( const Timecode& );
Timecode& operator+= ( const Timecode& );
Timecode& operator-= ( const Timecode& );
bool operator< ( const Timecode& ) const;
bool operator<= ( const Timecode& ) const;
bool operator> ( const Timecode& ) const;
bool operator>= ( const Timecode& ) const;
bool operator!= ( const Timecode& ) const;
bool operator== ( const Timecode& ) const;
Timecode operator+ ( const Timecode& ) const;
Timecode operator- ( const Timecode& ) const;
bool parse( const string&, string* = NULL );
void reset();
void setScale ( double );
void setDuration ( uint64_t, double = 0.0 );
void setFormat ( Format );
void setHours ( uint64_t );
void setMinutes ( uint64_t );
void setSeconds ( uint64_t );
void setSubseconds ( uint64_t );
private:
uint64_t convertDuration( const Timecode& ) const;
void recompute();
};
///////////////////////////////////////////////////////////////////////////////
}} // namespace mp4v2::util
#endif // MP4V2_UTIL_TIMECODE_H
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