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allow import of Beethoven's fifth.

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- more popular tunes to follow.
This commit is contained in:
nick_m 2017-01-05 03:49:59 +11:00
parent 7674ef1c2c
commit b95ab61ce9
1 changed files with 19 additions and 8 deletions
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27
gtk2_ardour/editor_audio_import.cc
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@ -276,23 +276,34 @@ Editor::import_smf_tempo_map (Evoral::SMF const & smf)
const framecnt_t sample_rate = _session->frame_rate ();
TempoMap new_map (sample_rate);
bool have_meter = false;
Meter last_meter (4.0, 4.0);
bool have_initial_meter = false;
for (size_t n = 0; n < num_tempos; ++n) {
Evoral::SMF::Tempo* t = smf.nth_tempo (n);
assert (t);
Tempo tempo (60 * (1000000 / t->microseconds_per_quarter_note), 4.0);
new_map.add_tempo (tempo, (t->time_pulses/smf.ppqn()) / 4.0, 0, TempoSection::Constant, MusicTime);
Tempo tempo (60 * (1000000 / (double) t->microseconds_per_quarter_note), 4.0);
Meter meter (t->numerator, t->denominator);
Timecode::BBT_Time bbt; /* 1|1|0 which is correct for the no-meter case */
if (have_meter) {
bbt = new_map.bbt_at_beat ((t->time_pulses/smf.ppqn()));
if (have_initial_meter) {
new_map.add_tempo (tempo, (t->time_pulses/smf.ppqn()) / 4.0, 0, TempoSection::Constant, MusicTime);
if (!(meter == last_meter)) {
bbt = new_map.bbt_at_quarter_note ((t->time_pulses/smf.ppqn()));
new_map.add_meter (meter, t->time_pulses, bbt, 0, MusicTime);
}
} else {
new_map.replace_tempo (new_map.tempo_section_at_frame (0), tempo, (t->time_pulses/smf.ppqn()) / 4.0, 0, TempoSection::Constant, AudioTime);
new_map.replace_meter (new_map.meter_section_at_frame (0), meter, bbt, 0, AudioTime);
have_initial_meter = true;
}
new_map.add_meter (meter, t->time_pulses, bbt, 0, MusicTime);
have_meter = true;
last_meter = meter;
cerr << "@ " << t->time_pulses/smf.ppqn() << " ("
<< t->time_seconds << ") Add T " << tempo << " M " << meter << endl;
}