$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
+/** 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 (double beats) const
{
+ if (beats < 0) {
+ std::cerr << "negative beats passed to BFC: " << beats << std::endl;
+ PBD::stacktrace (std::cerr, 30);
+ }
assert (beats >= 0);
-
- return _tempo_map.framepos_plus_bbt (_origin_b, Timecode::BBT_Time(beats)) - _origin_b;
+ framecnt_t r = _tempo_map.framepos_plus_beats (_origin_b, beats) - _origin_b;
+ return r;
}
+/** 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.
+ */
double
-BeatsFramesConverter::from (framecnt_t frames) const
+BeatsFramesConverter::from (framepos_t frames) const
{
- return _tempo_map.framewalk_to_beats (_origin_b, frames);
+ double b = _tempo_map.framewalk_to_beats (_origin_b, frames);
+ return b;
}
} /* namespace ARDOUR */