1 files changed, 106 insertions, 0 deletions
diff --git a/libk3b/videodvd/k3bvideodvdtime.cpp b/libk3b/videodvd/k3bvideodvdtime.cpp
new file mode 100644
index 0000000..acc6aec
--- /dev/null
+++ b/libk3b/videodvd/k3bvideodvdtime.cpp
@@ -0,0 +1,106 @@
+/* 
+ *
+ * $Id: sourceheader 511311 2006-02-19 14:51:05Z trueg $
+ * Copyright (C) 2006 Sebastian Trueg <trueg@k3b.org>
+ *
+ * This file is part of the K3b project.
+ * Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * See the file "COPYING" for the exact licensing terms.
+ */
+
+#include "k3bvideodvdtime.h"
+
+K3bVideoDVD::Time::Time()
+  : m_hour(0),
+    m_minute(0),
+    m_second(0),
+    m_frame(0)
+{
+}
+
+
+K3bVideoDVD::Time::Time( unsigned short hour,
+			 unsigned short min,
+			 unsigned short sec,
+			 unsigned short frame )
+  : m_hour(hour),
+    m_minute(min),
+    m_second(sec),
+    m_frame(frame)
+{
+}
+
+
+double K3bVideoDVD::Time::totalSeconds() const
+{
+  double s = (double)second();
+  s += 60.0 * (double)minute();
+  s += 3600.0 * (double)hour();
+
+  return s + (double)( frame() / frameRate() );
+}
+
+
+unsigned int K3bVideoDVD::Time::totalFrames() const
+{
+  double f = (double)second();
+  f += 60.0 * (double)minute();
+  f += 3600.0 * (double)hour();
+
+  return (int)( f * frameRate() ) + frame();
+}
+
+
+double K3bVideoDVD::Time::frameRate() const
+{
+  //
+  // This is how it is done in libdvdread
+  // I don't really understand it, though... :(
+  //
+  switch( (frame() & 0xc0) >> 6 ) {
+  case 1:
+    // PAL?
+    return 25.0;
+  case 3:
+    // NTSC?
+    return 29.97;
+  default:
+    // should only happen for time == 0?
+    return 0.0;
+  }
+}
+
+
+QString K3bVideoDVD::Time::toString( bool includeFrames ) const
+{
+  // FIXME: use a d-pointer
+  const_cast<K3bVideoDVD::Time*>(this)->makeValid();
+
+  if( includeFrames )
+    return QString().sprintf( "%02d:%02d:%02d.%02d", 
+			      m_hour,
+			      m_minute,
+			      m_second,
+			      m_frame & 0x3f );
+  else
+    return QString().sprintf( "%02d:%02d:%02d", 
+			      m_hour,
+			      m_minute,
+			      m_second + ( m_frame > 0 ? 1 : 0 ) );
+}
+
+
+void K3bVideoDVD::Time::makeValid()
+{
+  // FIXME: how to handle the frames?
+
+  m_minute += m_second/60;
+  m_second = m_second % 60;
+  m_hour += m_minute/60;
+  m_minute = m_minute % 60;
+}