#include "ardour/tempo.h" #include "tempo_test.h" CPPUNIT_TEST_SUITE_REGISTRATION (TempoTest); using namespace std; using namespace ARDOUR; using namespace Timecode; void TempoTest::recomputeMapTest48 () { int const sampling_rate = 48000; TempoMap map (sampling_rate); Meter meterA (4, 4); map.replace_meter (map.first_meter(), meterA, BBT_Time (1, 1, 0), 0, AudioTime); /* 120bpm at bar 1, 240bpm at bar 4 120bpm = 24e3 samples per beat 240bpm = 12e3 samples per beat */ /* 120bpm 240bpm 0 beats 12 beats 0 samples 288e3 samples 0 pulses 3 pulses | | | | | | 1.1 1.2 1.3 1.4 | 2.1 2.2 2.3.2.4 | 3.1 3.2 3.3 3.4 | 4.1 4.2 4.3 | */ Tempo tempoA (120.0, 4.0); map.replace_tempo (map.first_tempo(), tempoA, 0.0, 0, AudioTime); Tempo tempoB (240.0, 4.0); map.add_tempo (tempoB, 3.0, 0, MusicTime); Meter meterB (3, 4); map.add_meter (meterB, BBT_Time (4, 1, 0), 0, MusicTime); //map.dump (map._metrics, std::cout); list::iterator i = map._metrics.begin(); CPPUNIT_ASSERT_EQUAL (samplepos_t (0), (*i)->sample ()); i = map._metrics.end(); --i; CPPUNIT_ASSERT_EQUAL (samplepos_t (288e3), (*i)->sample ()); /* check the tempo section for expected result (no map) */ const TempoSection& tsa (map.tempo_section_at_sample (0)); CPPUNIT_ASSERT_DOUBLES_EQUAL (0.1, tsa.minute_at_pulse (3.0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (0.1 / 2.0, tsa.minute_at_pulse (1.5), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (0.1 / 3.0, tsa.minute_at_pulse (1.0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (3.0, tsa.pulse_at_minute (0.1), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (1.5, tsa.pulse_at_minute (0.1 / 2.0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (1.0, tsa.pulse_at_minute (0.1 / 3.0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (1.0, tsa.minute_at_sample (60.0 * sampling_rate), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (0.1, tsa.minute_at_ntpm (240.0, 3.0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (0.1, tsa.minute_at_ntpm (240.0, 3.0), 1e-17); /* do the same via the map */ /* quarter note */ /* quarter note - sample*/ CPPUNIT_ASSERT_EQUAL (samplepos_t (288e3), map.sample_at_quarter_note (12.0)); CPPUNIT_ASSERT_EQUAL (samplepos_t (144e3), map.sample_at_quarter_note (6.0)); CPPUNIT_ASSERT_EQUAL (samplepos_t (96e3), map.sample_at_quarter_note (4.0)); /* sample - quarter note*/ CPPUNIT_ASSERT_DOUBLES_EQUAL (12.0, map.quarter_note_at_sample (288e3), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (6.0, map.quarter_note_at_sample (144e3), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (4.0, map.quarter_note_at_sample (96e3), 1e-17); /* pulse - internal minute based interface */ CPPUNIT_ASSERT_DOUBLES_EQUAL (0.1, map.minute_at_pulse_locked (map._metrics, 3.0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (3.0, map.pulse_at_minute_locked (map._metrics, 0.1), 1e-17); /* tempo */ /* tempo - sample */ CPPUNIT_ASSERT_EQUAL (samplepos_t (288e3), map.sample_at_tempo (tempoB)); CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_sample (288e3).note_types_per_minute(), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (120.0, map.tempo_at_sample (288e3 - 1).note_types_per_minute(), 1e-17); /* tempo - quarter note */ CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_quarter_note (24.0).note_types_per_minute(), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_quarter_note (12.0).note_types_per_minute(), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (120.0, map.tempo_at_quarter_note (6.0).note_types_per_minute(), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (120.0, map.tempo_at_quarter_note (0.0).note_types_per_minute(), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (12.0, map.quarter_note_at_tempo (tempoB), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (0.0, map.quarter_note_at_tempo (tempoA), 1e-17); /* tempo - internal minute interface */ CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_minute_locked (map._metrics, 0.1).note_types_per_minute(), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (0.1, map.minute_at_tempo_locked (map._metrics, tempoB), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_pulse_locked (map._metrics, 3.0).note_types_per_minute(), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (3.0, map.pulse_at_tempo_locked (map._metrics, tempoB), 1e-17); } void TempoTest::recomputeMapTest44 () { int const sampling_rate = 44100; TempoMap map (sampling_rate); Meter meterA (4, 4); map.replace_meter (map.first_meter(), meterA, BBT_Time (1, 1, 0), 0, AudioTime); /* 120bpm at bar 1, 240bpm at bar 4 120bpm = 24e3 samples per beat 240bpm = 12e3 samples per beat */ /* 120bpm 240bpm 0 beats 12 beats 0 samples 288e3 samples 0 pulses 3 pulses | | | | | | 1.1 1.2 1.3 1.4 | 2.1 2.2 2.3.2.4 | 3.1 3.2 3.3 3.4 | 4.1 4.2 4.3 | */ Tempo tempoA (120.0, 4.0); map.replace_tempo (map.first_tempo(), tempoA, 0.0, 0, AudioTime); Tempo tempoB (240.0, 4.0); map.add_tempo (tempoB, 3.0, 0, MusicTime); Meter meterB (3, 4); map.add_meter (meterB, BBT_Time (4, 1, 0), 288e3, MusicTime); list::iterator i = map._metrics.begin(); CPPUNIT_ASSERT_EQUAL (samplepos_t (0), (*i)->sample ()); i = map._metrics.end(); --i; CPPUNIT_ASSERT_EQUAL (samplepos_t (264600), (*i)->sample ()); /* check the tempo section for expected result (no map) */ const TempoSection& tsa (map.tempo_section_at_sample (0)); CPPUNIT_ASSERT_DOUBLES_EQUAL (0.1, tsa.minute_at_pulse (3.0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (0.1 / 2.0, tsa.minute_at_pulse (1.5), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (0.1 / 3.0, tsa.minute_at_pulse (1.0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (3.0, tsa.pulse_at_minute (0.1), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (1.5, tsa.pulse_at_minute (0.1 / 2.0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (1.0, tsa.pulse_at_minute (0.1 / 3.0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (1.0, tsa.minute_at_sample (60.0 * sampling_rate), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (0.1, tsa.minute_at_ntpm (240.0, 3.0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (0.1, tsa.minute_at_pulse (3.0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (3.0, tsa.pulse_at_minute (0.1), 1e-17); /* do the same via the map */ /* quarter note */ /* quarter note - sample */ CPPUNIT_ASSERT_EQUAL (samplepos_t (264600), map.sample_at_quarter_note (12.0)); CPPUNIT_ASSERT_EQUAL (samplepos_t (132300), map.sample_at_quarter_note (6.0)); CPPUNIT_ASSERT_EQUAL (samplepos_t (88200), map.sample_at_quarter_note (4.0)); /* sample - quarter note */ CPPUNIT_ASSERT_DOUBLES_EQUAL (3.0 * 4.0, map.quarter_note_at_sample (264600), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (1.5 * 4.0, map.quarter_note_at_sample (132300), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (1.0 * 4.0, map.quarter_note_at_sample (88200), 1e-17); /* pulse - internal minute based interface */ CPPUNIT_ASSERT_DOUBLES_EQUAL (0.1, map.minute_at_pulse_locked (map._metrics, 3.0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (3.0, map.pulse_at_minute_locked (map._metrics, 0.1), 1e-17); /* tempo */ /* tempo - sample */ CPPUNIT_ASSERT_EQUAL (samplepos_t (264600), map.sample_at_tempo (tempoB)); CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_sample (264600).note_types_per_minute(), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (120.0, map.tempo_at_sample (264600 - 1).note_types_per_minute(), 1e-17); /* tempo - quarter note */ CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_quarter_note (24.0).note_types_per_minute(), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_quarter_note (12.0).note_types_per_minute(), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (120.0, map.tempo_at_quarter_note (6.0).note_types_per_minute(), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (120.0, map.tempo_at_quarter_note (0.0).note_types_per_minute(), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (12.0, map.quarter_note_at_tempo (tempoB), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (0.0, map.quarter_note_at_tempo (tempoA), 1e-17); /* tempo - internal minute interface */ CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_minute_locked (map._metrics, 0.1).note_types_per_minute(), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (0.1, map.minute_at_tempo_locked (map._metrics, tempoB), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_pulse_locked (map._metrics, 3.0).note_types_per_minute(), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (3.0, map.pulse_at_tempo_locked (map._metrics, tempoB), 1e-17); } void TempoTest::qnDistanceTestConstant () { int const sampling_rate = 44100; TempoMap map (sampling_rate); Meter meterA (4, 4); map.replace_meter (map.first_meter(), meterA, BBT_Time (1, 1, 0), 0, AudioTime); /* 120bpm at bar 1, 240bpm at bar 4 120bpm = 24e3 samples per beat 240bpm = 12e3 samples per beat */ /* 120bpm 240bpm 0 beats 12 beats 0 samples 288e3 samples 0 pulses 3 pulses | | | | | | 1.1 1.2 1.3 1.4 | 2.1 2.2 2.3.2.4 | 3.1 3.2 3.3 3.4 | 4.1 4.2 4.3 | */ Tempo tempoA (120.0, 4.0); map.replace_tempo (map.first_tempo(), tempoA, 0.0, 0, AudioTime); /* should have no effect on pulse */ Tempo tempoB (120.0, 4.0); map.add_tempo (tempoB, 2.0, 0, MusicTime); /* equivalent to pulse 3.0 @ 120 bpm*/ Tempo tempoC (240.0, 4.0); map.add_tempo (tempoC, 0.0, 6 * sampling_rate, AudioTime); Tempo tempoD (90.4, 4.0); map.add_tempo (tempoD, 9.0, 0, MusicTime); Tempo tempoE (110.6, 4.0); map.add_tempo (tempoE, 12.0, 0, MusicTime); Tempo tempoF (123.7, 4.0); map.add_tempo (tempoF, 15.0, 0, MusicTime); Tempo tempoG (111.8, 4.0); map.add_tempo (tempoG, 0.0, (samplepos_t) 2 * 60 * sampling_rate, AudioTime); Meter meterB (3, 4); map.add_meter (meterB, BBT_Time (4, 1, 0), 288e3, MusicTime); list::iterator i = map._metrics.begin(); CPPUNIT_ASSERT_EQUAL (samplepos_t (0), (*i)->sample ()); i = map._metrics.end(); --i; CPPUNIT_ASSERT_EQUAL ((*i)->sample(), map.samples_between_quarter_notes (0.0, (*i)->pulse() * 4.0)); --i; /* tempoF */ CPPUNIT_ASSERT_EQUAL ((*i)->sample(), map.samples_between_quarter_notes (0.0, 15.0 * 4.0)); CPPUNIT_ASSERT_DOUBLES_EQUAL ((*i)->minute(), map.minutes_between_quarter_notes_locked (map._metrics, 0.0, 15.0 * 4.0), 1e-17); --i; /* tempoE */ CPPUNIT_ASSERT_EQUAL ((*i)->sample(), map.samples_between_quarter_notes (0.0, 12.0 * 4.0)); CPPUNIT_ASSERT_DOUBLES_EQUAL ((*i)->minute(), map.minutes_between_quarter_notes_locked (map._metrics, 0.0, 12.0 * 4.0), 1e-17); --i; CPPUNIT_ASSERT_EQUAL ((*i)->sample(), map.samples_between_quarter_notes (0.0, 9.0 * 4.0)); CPPUNIT_ASSERT_DOUBLES_EQUAL ((*i)->minute(), map.minutes_between_quarter_notes_locked (map._metrics, 0.0, 9.0 * 4.0), 1e-17); --i; /* tempoC */ CPPUNIT_ASSERT_EQUAL (samplecnt_t (6 * sampling_rate), map.samples_between_quarter_notes (0.0, (*i)->pulse() * 4.0)); CPPUNIT_ASSERT_DOUBLES_EQUAL (0.1, map.minutes_between_quarter_notes_locked (map._metrics, 0.0, (*i)->pulse() * 4.0), 1e-17); /* distance from beat 12.0 to 0.0 should be 6.0 seconds */ CPPUNIT_ASSERT_EQUAL (samplecnt_t (264600), map.samples_between_quarter_notes (0.0, 3.0 * 4.0)); CPPUNIT_ASSERT_EQUAL (samplecnt_t (-264600), map.samples_between_quarter_notes (3.0 * 4.0, 0.0)); CPPUNIT_ASSERT_EQUAL (samplecnt_t (396900), map.samples_between_quarter_notes (0.0, 24.0)); CPPUNIT_ASSERT_EQUAL (samplecnt_t (-396900), map.samples_between_quarter_notes (24.0, 0.0)); CPPUNIT_ASSERT_EQUAL (samplecnt_t (88200), map.samples_between_quarter_notes (2.0 * 4.0, 3.0 * 4.0)); } void TempoTest::qnDistanceTestRamp () { int const sampling_rate = 44100; TempoMap map (sampling_rate); Meter meterA (4, 4); map.replace_meter (map.first_meter(), meterA, BBT_Time (1, 1, 0), 0, AudioTime); /* 120bpm at bar 1, 240bpm at bar 4 120bpm = 24e3 samples per beat 240bpm = 12e3 samples per beat */ /* 120bpm 240bpm 0 beats 12 beats 0 samples 288e3 samples 0 pulses 3 pulses | | | | | | | 1.1 1.2 1.3 1.4 | -no music- | 2.1 2.2 2.3.2.4 | 3.1 3.2 3.3 3.4 | 4.1 4.2 4.3 | */ Tempo tempoA (120.2, 4.0, 240.5); map.replace_tempo (map.first_tempo(), tempoA, 0.0, 0, AudioTime); Tempo tempoB (240.5, 4.0, 130.1); map.add_tempo (tempoB, 3.0, 0, MusicTime); Tempo tempoC (130.1, 4.0, 90.3); map.add_tempo (tempoC, 0.0, 6 * sampling_rate, AudioTime); Tempo tempoD (90.3, 4.0, 110.7); map.add_tempo (tempoD, 9.0, 0, MusicTime); Tempo tempoE (110.7, 4.0, 123.9); map.add_tempo (tempoE, 12.0, 0, MusicTime); Tempo tempoF (123.9, 4.0, 111.8); map.add_tempo (tempoF, 15.0, 0, MusicTime); Tempo tempoG (111.8, 4.0); map.add_tempo (tempoG, 0.0, (samplepos_t) 2 * 60 * sampling_rate, AudioTime); Meter meterB (3, 4); map.add_meter (meterB, BBT_Time (2, 1, 0), 288e3, AudioTime); map.recompute_map (map._metrics, 1); list::iterator i = map._metrics.begin(); CPPUNIT_ASSERT_EQUAL (samplepos_t (0), (*i)->sample ()); i = map._metrics.end(); --i; /* tempoG */ CPPUNIT_ASSERT_EQUAL ((*i)->sample(), map.samples_between_quarter_notes (0.0, (*i)->pulse() * 4.0)); CPPUNIT_ASSERT_DOUBLES_EQUAL ((*i)->minute(), map.minutes_between_quarter_notes_locked (map._metrics, 0.0, (*i)->pulse() * 4.0), 1e-17); --i; CPPUNIT_ASSERT_EQUAL ((*i)->sample(), map.samples_between_quarter_notes (0.0, 60.0)); CPPUNIT_ASSERT_DOUBLES_EQUAL ((*i)->minute(), map.minutes_between_quarter_notes_locked (map._metrics, 0.0, 60.0), 1e-17); --i; /* tempoE */ CPPUNIT_ASSERT_EQUAL ((*i)->sample(), map.samples_between_quarter_notes (0.0, 48.0)); CPPUNIT_ASSERT_DOUBLES_EQUAL ((*i)->minute(), map.minutes_between_quarter_notes_locked (map._metrics, 0.0, 48.0), 1e-17); --i; CPPUNIT_ASSERT_EQUAL ((*i)->sample(), map.samples_between_quarter_notes (0.0, 36.0)); CPPUNIT_ASSERT_DOUBLES_EQUAL ((*i)->minute(), map.minutes_between_quarter_notes_locked (map._metrics, 0.0, 36.0), 1e-17); --i; /* tempoC */ CPPUNIT_ASSERT_EQUAL (samplecnt_t (6 * sampling_rate), map.samples_between_quarter_notes (0.0, (*i)->pulse() * 4.0)); CPPUNIT_ASSERT_DOUBLES_EQUAL (0.1, map.minutes_between_quarter_notes_locked (map._metrics, 0.0, (*i)->pulse() * 4.0), 1e-17); } void TempoTest::rampTest48 () { int const sampling_rate = 48000; TempoMap map (sampling_rate); Meter meterA (4, 4); Tempo tempoA (77.0, 4.0, 217.0); Tempo tempoB (217.0, 4.0); map.replace_tempo (map.first_tempo(), tempoA, 0.0, 0, AudioTime); map.add_tempo (tempoB, 0.0, (samplepos_t) 60 * sampling_rate, AudioTime); map.replace_meter (map.first_meter(), meterA, BBT_Time (1, 1, 0), 0, AudioTime); /* 77bpm 217bpm 0 samples 60 * sample rate samples | | | | | | *| | * | | * | | * | | * | | * | | * | | * | | | * | | | * | | | -------------------|-----------|----------------------- 20 seconds 125.0 bpm / note_type */ TempoSection& tA = map.first_tempo(); const TempoSection& tB = map.tempo_section_at_sample ((samplepos_t) 60 * sampling_rate); CPPUNIT_ASSERT_DOUBLES_EQUAL (1.0, tA.minute_at_ntpm (217.0, 300.0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (217.0, tA.tempo_at_minute (1.0).note_types_per_minute(), 1e-17); /* note 1e-14 here. pulse is two derivatives away from time */ CPPUNIT_ASSERT_DOUBLES_EQUAL (tB.pulse(), tA.pulse_at_minute (1.0), 1e-14); CPPUNIT_ASSERT_DOUBLES_EQUAL (1.0, tA.minute_at_pulse (tB.pulse()), 1e-15); /* note 1e-17 here. tempo is one derivative away from pulse, so we can get the same stuff with more precision */ CPPUNIT_ASSERT_DOUBLES_EQUAL (tB.pulse(), tA.pulse_at_ntpm (217.0, 1.0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (1.0, tA.minute_at_ntpm (217.0, tB.pulse()), 1e-17); /* self-check tempo at pulse @ 125 bpm. */ CPPUNIT_ASSERT_DOUBLES_EQUAL (125.0, tA.tempo_at_pulse (tA.pulse_at_ntpm (125.0, 0)).note_types_per_minute(), 1e-17); /* check that tB's pulse is what tA thinks it should be */ CPPUNIT_ASSERT_DOUBLES_EQUAL (tB.pulse(), tA.pulse_at_ntpm (217.0, 0), 1e-17); /* check that the tempo at the halfway mark (in pulses) is half the tempo delta.*/ CPPUNIT_ASSERT_DOUBLES_EQUAL (147.0, tA.tempo_at_pulse (tB.pulse() / 2.0).note_types_per_minute(), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL ((tB.pulse() - tA.pulse()) / 2.0, tA.pulse_at_ntpm (147.0, 0), 1e-17); /* self-check sample at pulse 20 seconds in. */ const double target = 20.0 / 60.0; const double result = tA.minute_at_pulse (tA.pulse_at_minute (target)); CPPUNIT_ASSERT_DOUBLES_EQUAL (target, result, 1e-14); } void TempoTest::rampTest44 () { int const sampling_rate = 44100; TempoMap map (sampling_rate); Meter meterA (4, 4); Tempo tempoA (77.0, 4.0, 217.0); Tempo tempoB (217.0, 4.0); map.replace_tempo (map.first_tempo(), tempoA, 0.0, 0, AudioTime); map.add_tempo (tempoB, 0.0, (samplepos_t) 60 * sampling_rate, AudioTime); map.replace_meter (map.first_meter(), meterA, BBT_Time (1, 1, 0), 0, AudioTime); /* 77bpm 217bpm 0 samples 60 * sample rate samples | | | | | | *| | * | | * | | * | | * | | * | | * | | * | | | * | | | * | | | -------------------|-----------|----------------------- 20 seconds 125.0 bpm / note_type */ TempoSection& tA = map.first_tempo(); const TempoSection& tB = map.tempo_section_at_sample ((samplepos_t) 60 * sampling_rate); CPPUNIT_ASSERT_DOUBLES_EQUAL (1.0, tA.minute_at_ntpm (217.0, 300.0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (217.0, tA.tempo_at_minute (1.0).note_types_per_minute(), 1e-17); /* note 1e-14 here. pulse is two derivatives away from time */ CPPUNIT_ASSERT_DOUBLES_EQUAL (tB.pulse(), tA.pulse_at_minute (1.0), 1e-14); CPPUNIT_ASSERT_DOUBLES_EQUAL (1.0, tA.minute_at_pulse (tB.pulse()), 1e-15); /* note 1e-17 here. tempo is one derivative away from pulse, so we can get the same stuff with more precision */ CPPUNIT_ASSERT_DOUBLES_EQUAL (tB.pulse(), tA.pulse_at_ntpm (217.0, 1.0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (1.0, tA.minute_at_ntpm (217.0, tB.pulse()), 1e-17); /* self-check tempo at pulse @ 125 bpm. */ CPPUNIT_ASSERT_DOUBLES_EQUAL (125.0, tA.tempo_at_pulse (tA.pulse_at_ntpm (125.0, 0)).note_types_per_minute(), 1e-17); /* check that tB's pulse is what tA thinks it should be */ CPPUNIT_ASSERT_DOUBLES_EQUAL (tB.pulse(), tA.pulse_at_ntpm (217.0, 0), 1e-17); /* check that the tempo at the halfway mark (in pulses) is half the tempo delta.*/ CPPUNIT_ASSERT_DOUBLES_EQUAL (147.0, tA.tempo_at_pulse (tB.pulse() / 2.0).note_types_per_minute(), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL ((tB.pulse() - tA.pulse()) / 2.0, tA.pulse_at_ntpm (147.0, 0), 1e-17); /* self-check sample at pulse 20 seconds in. */ const double target = 20.0 / 60.0; const double result = tA.minute_at_pulse (tA.pulse_at_minute (target)); CPPUNIT_ASSERT_DOUBLES_EQUAL (target, result, 1e-14); } void TempoTest::tempoAtPulseTest () { int const sampling_rate = 48000; TempoMap map (sampling_rate); Meter meterA (4, 8); Tempo tempoA (80.0, 8.0, 160.0); Tempo tempoB (160.0, 3.0, 123.0); Tempo tempoC (123.0, 4.0); map.replace_meter (map.first_meter(), meterA, BBT_Time (1, 1, 0), 0, AudioTime); map.replace_tempo (map.first_tempo(), tempoA, 0.0, 0, AudioTime); map.add_tempo (tempoB, 20.0, 0, MusicTime); map.add_tempo (tempoC, 30.0, 0, MusicTime); TempoSection* tA = 0; TempoSection* tB = 0; TempoSection* tC = 0; list::iterator i; for (i = map._metrics.begin(); i != map._metrics.end(); ++i) { TempoSection* t; if ((t = dynamic_cast (*i)) != 0) { if (!tA) { tA = t; continue; } if (!tB) { tB = t; continue; } if (!tC) { tC = t; continue; } } } CPPUNIT_ASSERT_DOUBLES_EQUAL (160.0, tA->tempo_at_pulse (20.0).note_types_per_minute(), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (123.0, tB->tempo_at_pulse (30.0).note_types_per_minute(), 1e-17); /* check that the tempo at the halfway mark (in pulses) is half the tempo delta.*/ CPPUNIT_ASSERT_DOUBLES_EQUAL (((80.0 - 160.0) / 2.0) + 160.0, tA->tempo_at_pulse (10.0).note_types_per_minute(), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (20.0 / 2.0, tA->pulse_at_ntpm (120.0, 0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (((160.0 - 123.0) / 2.0) + 123.0, tB->tempo_at_pulse (25.0).note_types_per_minute(), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (((20.0 - 30.0) / 2.0) + 30.0, tB->pulse_at_ntpm (141.5, 0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (tB->minute(), tA->minute_at_pulse (20.0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (tC->minute(), tB->minute_at_pulse (30.0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (tB->minute(), tA->minute_at_ntpm (160.0, 20.0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (tC->minute(), tB->minute_at_ntpm (123.0, 30.0), 1e-17); /* self-check tempo at pulse @ 125 bpm. */ CPPUNIT_ASSERT_DOUBLES_EQUAL (125.0, tA->tempo_at_pulse (tA->pulse_at_ntpm (125.0, 0)).note_types_per_minute(), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (160.0, tA->tempo_at_pulse (20.0).note_types_per_minute(), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (123.0, tB->tempo_at_pulse (30.0).note_types_per_minute(), 1e-17); /* test minute based measurements */ CPPUNIT_ASSERT_DOUBLES_EQUAL (tB->minute(), tA->minute_at_pulse (20.0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (tC->minute(), tB->minute_at_pulse (30.0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (tB->minute(), tA->minute_at_ntpm (160.0, 20.0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (tC->minute(), tB->minute_at_ntpm (123.0, 30.0), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (160.0, tA->tempo_at_minute (tB->minute()).note_types_per_minute(), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (123.0, tB->tempo_at_minute (tC->minute()).note_types_per_minute(), 1e-17); } void TempoTest::tempoFundamentalsTest () { int const sampling_rate = 48000; TempoMap map (sampling_rate); Meter meterA (4, 8); Tempo tempoA (120.0, 4.0); Tempo tempoB (120.0, 8.0); Tempo tempoC (120.0, 2.0); Tempo tempoD (160.0, 2.0); Tempo tempoE (123.0, 3.0); map.replace_meter (map.first_meter(), meterA, BBT_Time (1, 1, 0), 0, AudioTime); map.replace_tempo (map.first_tempo(), tempoA, 0.0, 0, AudioTime); map.add_tempo (tempoB, 20.0, 0, MusicTime); map.add_tempo (tempoC, 30.0, 0, MusicTime); map.add_tempo (tempoD, 40.0, 0, MusicTime); map.add_tempo (tempoE, 50.0, 0, MusicTime); TempoSection* tA = 0; TempoSection* tB = 0; TempoSection* tC = 0; TempoSection* tD = 0; TempoSection* tE = 0; list::iterator i; for (i = map._metrics.begin(); i != map._metrics.end(); ++i) { TempoSection* t; if ((t = dynamic_cast (*i)) != 0) { if (!tA) { tA = t; continue; } if (!tB) { tB = t; continue; } if (!tC) { tC = t; continue; } if (!tD) { tD = t; continue; } if (!tE) { tE = t; continue; } } } CPPUNIT_ASSERT_DOUBLES_EQUAL (24000.0, tA->samples_per_quarter_note (sampling_rate), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (24000.0, tA->samples_per_note_type (sampling_rate), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (120.0, tA->quarter_notes_per_minute (), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (30.0, tA->pulses_per_minute (), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (48000.0, tB->samples_per_quarter_note (sampling_rate), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (24000.0, tB->samples_per_note_type (sampling_rate), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (60.0, tB->quarter_notes_per_minute (), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (15.0, tB->pulses_per_minute (), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (12000.0, tC->samples_per_quarter_note (sampling_rate), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (24000.0, tC->samples_per_note_type (sampling_rate), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, tC->quarter_notes_per_minute (), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (60.0, tC->pulses_per_minute (), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (9000.0, tD->samples_per_quarter_note (sampling_rate), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (18000.0, tD->samples_per_note_type (sampling_rate), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (320.0, tD->quarter_notes_per_minute (), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (80.0, tD->pulses_per_minute (), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (17560.975609756097, tE->samples_per_quarter_note (sampling_rate), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (23414.634146341465, tE->samples_per_note_type (sampling_rate), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (164.0, tE->quarter_notes_per_minute (), 1e-17); CPPUNIT_ASSERT_DOUBLES_EQUAL (41.0, tE->pulses_per_minute (), 1e-17); }