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MIDClock_Slave: Introduce a 3% deadzone around speed 1.0 to lock in the speed

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git-svn-id: svn://localhost/ardour2/branches/3.0@6593 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
Hans Baier 2010-01-29 16:07:40 +00:00
parent 43e15be62f
commit 706d6e8ff0
2 changed files with 7 additions and 2 deletions
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4
libs/ardour/midi_clock_slave.cc
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@ -346,6 +346,10 @@ MIDIClock_Slave::speed_and_position (double& speed, nframes64_t& pos)
// calculate speed
speed = ((t1 - t0) * session->frame_rate()) / one_ppqn_in_frames;
// provide a 3% deadzone to lock the speed
if (fabs(speed - 1.0) <= 0.03)
speed = 1.0;
// calculate position
if (engine_now > last_timestamp) {

5
libs/ardour/test/midi_clock_slave_test.cpp
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@ -15,9 +15,10 @@ MIDIClock_SlaveTest::testStepResponse ()
MIDI::Parser* parser = 0;
TestSlaveSessionProxy *sess = (TestSlaveSessionProxy *) session;
nframes64_t period_size = 1024;
nframes64_t period_size = 4096;
sess->set_period_size (period_size);
bandwidth = 1.0 / 60.0;
nframes64_t start_time = 1000000;
start (*parser, start_time);