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more tempo documentation.

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This commit is contained in:
nick_m 2016-11-09 02:23:43 +11:00
parent 4e41b71a4e
commit 3816ee4e92
1 changed files with 8 additions and 3 deletions
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11
libs/ardour/tempo.cc
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@ -237,12 +237,11 @@ TempoSection::tempo_at_minute (const double& m) const
*
*/
/** user feedback dictates that if tempoA (120, 4.0) precedes tempoB (120, 8.0),
* there will be no ramp between the two even if set to ramped.
/** if tempoA (120, 4.0) precedes tempoB (120, 8.0),
* there should be no ramp between the two even if we are ramped.
* in other words a ramp should only place a curve on note_types_per_minute.
* we should be able to use Tempo note type here, but the above
* complicates things a bit.
* we would ideally like to use arbitrary Tempo structs here.
*/
double
TempoSection::minute_at_ntpm (const double& ntpm, const double& p) const
@ -311,6 +310,12 @@ TempoSection::minute_at_pulse (const double& p) const
return _time_at_pulse (p - pulse()) + minute();
}
/** returns thw whole-note pulse at session frame position f.
* @param f the frame position.
* @return the position in whole-note pulses corresponding to f
*
* for use with musical units whose granularity is coarser than frames (e.g. ticks)
*/
double
TempoSection::pulse_at_frame (const framepos_t& f) const
{