ardour/libs/ardour/test/midi_clock_slave_test.cc

45 lines
1 KiB
C++

#include <sigc++/sigc++.h>
#include "midi_clock_slave_test.h"
using namespace std;
using namespace ARDOUR;
CPPUNIT_TEST_SUITE_REGISTRATION( MIDIClock_SlaveTest );
void
MIDIClock_SlaveTest::testStepResponse ()
{
double speed = 1.0;
framepos_t position = 0;
MIDI::Parser* parser = 0;
TestSlaveSessionProxy *sess = (TestSlaveSessionProxy *) session;
framecnt_t period_size = 4096;
sess->set_period_size (period_size);
bandwidth = 1.0 / 60.0;
framepos_t start_time = 1000000;
start (*parser, start_time);
update_midi_clock (*parser, start_time);
for (framecnt_t i = 1; i<= 100 * period_size; i++) {
// simulate jitter
framecnt_t input_delta = framecnt_t (one_ppqn_in_frames + 0.1 * (double(g_random_int()) / double (RAND_MAX)) * one_ppqn_in_frames);
if (i % input_delta == 0) {
update_midi_clock (*parser, start_time + i);
}
if (i % period_size == 0) {
sess->next_period ();
speed_and_position (speed, position);
sess->request_transport_speed (speed);
}
}
}