fix file-name reported to analyzer when stem-exporting

[ardour.git] / libs / ardour / beats_frames_converter.cc

diff --git a/libs/ardour/beats_frames_converter.cc b/libs/ardour/beats_frames_converter.cc
index 4cda4173b3a9f38e9efc970090ac92e499d20964..54db8008da2c4fcabacaba0d0da64963952da040 100644 (file)
--- a/libs/ardour/beats_frames_converter.cc
+++ b/libs/ardour/beats_frames_converter.cc
@@ -1,6 +1,6 @@
 /*
     Copyright (C) 2009 Paul Davis
-    Author: Dave Robillard
+    Author: David Robillard
 
     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
@@ -19,27 +19,55 @@
     $Id: midiregion.h 733 2006-08-01 17:19:38Z drobilla $
 */
 
+#include "pbd/stacktrace.h"
+
 #include "ardour/beats_frames_converter.h"
 #include "ardour/tempo.h"
 
 namespace ARDOUR {
 
-framecnt_t
-BeatsFramesConverter::to(double beats) const
+/** Takes a positive duration in beats and considers it as a distance from the origin
+ *  supplied to the constructor.  Returns the equivalent number of frames,
+ *  taking tempo changes into account.
+ */
+framepos_t
+BeatsFramesConverter::to (Evoral::Beats beats) const
 {
-        Timecode::BBT_Time delta;
+       if (beats < Evoral::Beats()) {
+               std::cerr << "negative beats passed to BFC: " << beats << std::endl;
+               PBD::stacktrace (std::cerr, 30);
+               return 0;
+       }
+       return _tempo_map.framepos_plus_beats (_origin_b, beats) - _origin_b;
+}
 
-        delta.bars = 0;
-        delta.beats = rint (floor (beats));
-        delta.ticks = rint (floor (Meter::ticks_per_beat * fmod (beats, 1.0)));
+/** Takes a duration in frames and considers it as a distance from the origin
+ *  supplied to the constructor.  Returns the equivalent number of beats,
+ *  taking tempo changes into account.
+ */
+Evoral::Beats
+BeatsFramesConverter::from (framepos_t frames) const
+{
+       return _tempo_map.framewalk_to_beats (_origin_b, frames);
+}
 
-        return _tempo_map.framepos_plus_bbt (_origin_b, delta);
+/** As above, but with beats in double instead (for GUI). */
+framepos_t
+DoubleBeatsFramesConverter::to (double beats) const
+{
+       if (beats < 0.0) {
+               std::cerr << "negative beats passed to BFC: " << beats << std::endl;
+               PBD::stacktrace (std::cerr, 30);
+               return 0;
+       }
+       return _tempo_map.framepos_plus_beats (_origin_b, Evoral::Beats(beats)) - _origin_b;
 }
 
+/** As above, but with beats in double instead (for GUI). */
 double
-BeatsFramesConverter::from (framecnt_t frames) const
+DoubleBeatsFramesConverter::from (framepos_t frames) const
 {
-        return _tempo_map.framewalk_to_beats (_origin_b, frames);
+       return _tempo_map.framewalk_to_beats (_origin_b, frames).to_double();
 }
 
 } /* namespace ARDOUR */