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+//=============================================================================
+// MusE
+// Linux Music Editor
+// $Id:$
+//
+// Copyright (C) 2002-2006 by Werner Schweer and others
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License version 2.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//=============================================================================
+
+#include "al/al.h"
+#include "mtc.h"
+
+//---------------------------------------------------------
+// MTC::time
+// converts MTC Time to seconds according to
+// global mtcType
+//---------------------------------------------------------
+
+double MTC::time() const
+ {
+ double time = _h * 3600 + _m * 60 + _s;
+ double ft = 0.0;
+ switch (AL::mtcType) {
+ case 0: // 24 frames sec
+ ft = 1.0/24.0;
+ break;
+ case 1: // 25
+ ft = 0.04;
+ break;
+ case 2: // 30 drop frame TODO
+ case 3: // 30 non drop frame
+ ft = 1.0/30.0;
+ break;
+ }
+ return time + ft *_f + 0.01 * ft * _sf;
+ }
+
+//---------------------------------------------------------
+// MTC
+//---------------------------------------------------------
+
+MTC::MTC(double t)
+ {
+ _h = int(t/3600);
+ t -= _h * 3600;
+ _m = int(t/60);
+ t -= _m * 60;
+ _s = int(t);
+ t -= _s;
+ double ft = 1.0/24.0;
+ switch (AL::mtcType) {
+ case 0: // 24 frames sec
+ ft = 1.0/24.0;
+ break;
+ case 1: // 25
+ ft = 0.04;
+ break;
+ case 2: // 30 drop frame
+ case 3: // 30 non drop frame
+ ft = 1.0/30.0;
+ break;
+ }
+ double frames = t / ft;
+ _f = int(frames);
+ frames -= _f;
+ _sf = int(frames * 100);
+ }
+
+//---------------------------------------------------------
+// incQuarter
+// increment MTC time one quarter frame time
+//---------------------------------------------------------
+
+void MTC::incQuarter()
+ {
+ int frames = 24;
+ switch (AL::mtcType) {
+ case 0:
+ frames = 24;
+ break;
+ case 1:
+ frames = 25;
+ break;
+ case 2:
+ case 3:
+ frames = 30;
+ break;
+ }
+ _sf += 25;
+ if (_sf >= 100) {
+ ++_f;
+ _sf -= 100;
+ }
+ if (_f == frames) {
+ ++_s;
+ _f = 0;
+ }
+ if (_s == 60) {
+ ++_m;
+ _s = 0;
+ }
+ if (_m == 60) {
+ ++_h;
+ _m = 0;
+ }
+ if (_h == 24) {
+ _h = 0;
+ }
+ }
+
+//---------------------------------------------------------
+// print
+//---------------------------------------------------------
+
+void MTC::print() const
+ {
+ printf("%02d:%02d:%02d:%02d:%02d", _h, _m, _s, _f, _sf);
+ }
+
+