1 files changed, 119 insertions, 0 deletions
diff --git a/libutil/Timecode.h b/libutil/Timecode.h
new file mode 100644
index 0000000..dd164e6
--- /dev/null
+++ b/libutil/Timecode.h
@@ -0,0 +1,119 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+//  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