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fix loading of 4.x sessions with a missing initial tempo section.

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- behaviour should match that of 4.x (move the first tempo
	  to frame 0).
This commit is contained in:
nick_m 2017-02-16 04:58:45 +11:00
parent 61ae00ed23
commit 32248b755b
1 changed files with 11 additions and 0 deletions
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11
libs/ardour/tempo.cc
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@ -4135,6 +4135,7 @@ TempoMap::fix_legacy_session ()
{ {
MeterSection* prev_m = 0; MeterSection* prev_m = 0;
TempoSection* prev_t = 0; TempoSection* prev_t = 0;
bool have_initial_t = false;
for (Metrics::iterator i = _metrics.begin(); i != _metrics.end(); ++i) { for (Metrics::iterator i = _metrics.begin(); i != _metrics.end(); ++i) {
MeterSection* m; MeterSection* m;
@ -4173,10 +4174,20 @@ TempoMap::fix_legacy_session ()
t->set_minute (0.0); t->set_minute (0.0);
t->set_position_lock_style (AudioTime); t->set_position_lock_style (AudioTime);
prev_t = t; prev_t = t;
have_initial_t = true;
continue; continue;
} }
if (prev_t) { if (prev_t) {
/* some 4.x sessions have no initial (non-movable) tempo. */
if (!have_initial_t) {
prev_t->set_pulse (0.0);
prev_t->set_minute (0.0);
prev_t->set_position_lock_style (AudioTime);
t->set_initial (true);
have_initial_t = true;
}
const double beat = ((t->legacy_bbt().bars - 1) * ((prev_m) ? prev_m->note_divisor() : 4.0)) const double beat = ((t->legacy_bbt().bars - 1) * ((prev_m) ? prev_m->note_divisor() : 4.0))
+ (t->legacy_bbt().beats - 1) + (t->legacy_bbt().beats - 1)
+ (t->legacy_bbt().ticks / BBT_Time::ticks_per_beat); + (t->legacy_bbt().ticks / BBT_Time::ticks_per_beat);