expand on existing tempo tests.
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509d938b04
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20d02c4c68
@ -45,13 +45,37 @@ TempoTest::recomputeMapTest ()
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list<MetricSection*>::iterator i = map._metrics.begin();
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CPPUNIT_ASSERT_EQUAL (framepos_t (0), (*i)->frame ());
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/* check the tempo section for ecpected result (no map) */
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const TempoSection& tsa (map.tempo_section_at_frame (0));
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CPPUNIT_ASSERT_EQUAL (framepos_t (288e3), tsa.frame_at_pulse (3.0, sampling_rate));
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CPPUNIT_ASSERT_EQUAL (framepos_t (144e3), tsa.frame_at_pulse (1.5, sampling_rate));
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CPPUNIT_ASSERT_EQUAL (framepos_t (96e3), tsa.frame_at_pulse (1.0, sampling_rate));
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CPPUNIT_ASSERT_DOUBLES_EQUAL (3.0, tsa.pulse_at_frame (288e3, sampling_rate), 1e-17);
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CPPUNIT_ASSERT_DOUBLES_EQUAL (1.5, tsa.pulse_at_frame (144e3, sampling_rate), 1e-17);
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CPPUNIT_ASSERT_DOUBLES_EQUAL (1.0, tsa.pulse_at_frame (96e3, sampling_rate), 1e-17);
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/* do the same via the map */
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CPPUNIT_ASSERT_EQUAL (framepos_t (288e3), map.frame_at_pulse (3.0));
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CPPUNIT_ASSERT_EQUAL (framepos_t (144e3), map.frame_at_pulse (1.5));
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CPPUNIT_ASSERT_EQUAL (framepos_t (96e3), map.frame_at_pulse (1.0));
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CPPUNIT_ASSERT_DOUBLES_EQUAL (3.0, map.pulse_at_frame (288e3), 1e-17);
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CPPUNIT_ASSERT_DOUBLES_EQUAL (1.5, map.pulse_at_frame (144e3), 1e-17);
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CPPUNIT_ASSERT_DOUBLES_EQUAL (1.0, map.pulse_at_frame (96e3), 1e-17);
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CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_beat (24.0).beats_per_minute(), 1e-17);
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CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_beat (12.0).beats_per_minute(), 1e-17);
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CPPUNIT_ASSERT_DOUBLES_EQUAL (120.0, map.tempo_at_beat (6.0).beats_per_minute(), 1e-17);
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CPPUNIT_ASSERT_DOUBLES_EQUAL (120.0, map.tempo_at_beat (0.0).beats_per_minute(), 1e-17);
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i = map._metrics.end();
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--i;
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CPPUNIT_ASSERT_EQUAL (framepos_t (288e3), (*i)->frame ());
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}
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void
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TempoTest::rampTest ()
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TempoTest::rampTest48 ()
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{
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int const sampling_rate = 48000;
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@ -82,32 +106,86 @@ TempoTest::rampTest ()
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20 seconds 125.0 bpm / note_type
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*/
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TempoSection* tA = 0;
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TempoSection* tB;
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list<MetricSection*>::iterator i;
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TempoSection& tA = map.first_tempo();
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const TempoSection& tB = map.tempo_section_at_frame ((framepos_t) 60 * sampling_rate);
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for (i = map._metrics.begin(); i != map._metrics.end(); ++i) {
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if ((tB = dynamic_cast<TempoSection*> (*i)) != 0) {
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if (tA) {
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break;
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}
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tA = tB;
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}
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}
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map.recompute_map (map._metrics);
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CPPUNIT_ASSERT_EQUAL (tB->frame(), tA->frame_at_tempo (tB->beats_per_minute(), 300.0, sampling_rate));
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CPPUNIT_ASSERT_EQUAL (tB->frame(), tA->frame_at_pulse (tB->pulse(), sampling_rate));
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CPPUNIT_ASSERT_EQUAL ((framepos_t) 60 * sampling_rate, tA.frame_at_tempo (tB.beats_per_minute(), 300.0, sampling_rate));
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CPPUNIT_ASSERT_DOUBLES_EQUAL (217.0, tA.tempo_at_frame ((framepos_t) 60 * sampling_rate, sampling_rate), 1e-17);
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CPPUNIT_ASSERT_EQUAL ((framepos_t) 60 * sampling_rate, tA.frame_at_pulse (tB.pulse(), sampling_rate));
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/* note 1e-14 here. (expm1) */
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CPPUNIT_ASSERT_DOUBLES_EQUAL (tB.pulse(), tA.pulse_at_frame ((framepos_t) 60 * sampling_rate, sampling_rate), 1e-14);
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/* self-check tempo at pulse @ 125 bpm. */
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CPPUNIT_ASSERT_DOUBLES_EQUAL (125.0, tA->tempo_at_pulse (tA->pulse_at_tempo (125.0, 0, sampling_rate)), 0.00000000000000001);
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CPPUNIT_ASSERT_DOUBLES_EQUAL (125.0, tA.tempo_at_pulse (tA.pulse_at_tempo (125.0, 0, sampling_rate)), 1e-17);
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/* check that tB's pulse is what tA thinks it should be */
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CPPUNIT_ASSERT_DOUBLES_EQUAL (tB.pulse(), tA.pulse_at_tempo (217.0, 0, sampling_rate), 1e-17);
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/* check that the tempo at the halfway mark (in pulses) is half the tempo delta.*/
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CPPUNIT_ASSERT_DOUBLES_EQUAL (147.0, tA.tempo_at_pulse (tB.pulse() / 2.0), 1e-17);
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CPPUNIT_ASSERT_DOUBLES_EQUAL ((tB.pulse() - tA.pulse()) / 2.0, tA.pulse_at_tempo (147.0, 0, sampling_rate), 1e-17);
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/* self-check frame at pulse 20 seconds in. */
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const framepos_t target = 20 * sampling_rate;
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const framepos_t result = tA->frame_at_pulse (tA->pulse_at_frame (target, sampling_rate), sampling_rate);
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const framepos_t result = tA.frame_at_pulse (tA.pulse_at_frame (target, sampling_rate), sampling_rate);
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CPPUNIT_ASSERT_EQUAL (target, result);
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}
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void
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TempoTest::rampTest44 ()
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{
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int const sampling_rate = 44100;
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TempoMap map (sampling_rate);
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Meter meterA (4, 4);
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Tempo tempoA (77.0, 4.0);
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Tempo tempoB (217.0, 4.0);
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map.replace_tempo (map.first_tempo(), tempoA, 0.0, 0, TempoSection::Ramp, AudioTime);
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map.add_tempo (tempoB, 0.0, (framepos_t) 60 * sampling_rate, TempoSection::Ramp, AudioTime);
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map.replace_meter (map.first_meter(), meterA, BBT_Time (1, 1, 0), (framepos_t) 0, AudioTime);
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/*
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77bpm 217bpm
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0 frames 60 * sample rate frames
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| *|
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| * |
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| * |
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| * | |
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-------------------|-----------|-----------------------
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20 seconds 125.0 bpm / note_type
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*/
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TempoSection& tA = map.first_tempo();
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const TempoSection& tB = map.tempo_section_at_frame ((framepos_t) 60 * sampling_rate);
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CPPUNIT_ASSERT_EQUAL ((framepos_t) 60 * sampling_rate, tA.frame_at_tempo (tB.beats_per_minute(), 300.0, sampling_rate));
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CPPUNIT_ASSERT_DOUBLES_EQUAL (217.0, tA.tempo_at_frame ((framepos_t) 60 * sampling_rate, sampling_rate), 1e-17);
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CPPUNIT_ASSERT_EQUAL ((framepos_t) 60 * sampling_rate, tA.frame_at_pulse (tB.pulse(), sampling_rate));
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CPPUNIT_ASSERT_DOUBLES_EQUAL (tB.pulse(), tA.pulse_at_frame ((framepos_t) 60 * sampling_rate, sampling_rate), 1e-14);
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/* self-check tempo at pulse @ 125 bpm. */
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CPPUNIT_ASSERT_DOUBLES_EQUAL (125.0, tA.tempo_at_pulse (tA.pulse_at_tempo (125.0, 0, sampling_rate)), 1e-17);
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/* check that tB's pulse is what tA thinks it should be */
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CPPUNIT_ASSERT_DOUBLES_EQUAL (tB.pulse(), tA.pulse_at_tempo (217.0, 0, sampling_rate), 1e-17);
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/* check that the tempo at the halfway mark (in pulses) is half the tempo delta.*/
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CPPUNIT_ASSERT_DOUBLES_EQUAL (147.0, tA.tempo_at_pulse (tB.pulse() / 2.0), 1e-17);
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CPPUNIT_ASSERT_DOUBLES_EQUAL ((tB.pulse() - tA.pulse()) / 2.0, tA.pulse_at_tempo (147.0, 0, sampling_rate), 1e-17);
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/* self-check frame at pulse 20 seconds in. */
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const framepos_t target = 20 * sampling_rate;
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const framepos_t result = tA.frame_at_pulse (tA.pulse_at_frame (target, sampling_rate), sampling_rate);
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CPPUNIT_ASSERT_EQUAL (target, result);
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}
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void
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TempoTest::tempoAtPulseTest ()
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@ -150,20 +228,23 @@ TempoTest::tempoAtPulseTest ()
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}
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}
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CPPUNIT_ASSERT_EQUAL (tB->beats_per_minute(), tA->tempo_at_pulse (20.0));
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CPPUNIT_ASSERT_EQUAL (tC->beats_per_minute(), tB->tempo_at_pulse (30.0));
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CPPUNIT_ASSERT_EQUAL (160.0, tA->tempo_at_pulse (20.0));
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CPPUNIT_ASSERT_EQUAL (123.0, tB->tempo_at_pulse (30.0));
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/* check that the tempo at the halfway mark (in pulses) is half the tempo delta.*/
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CPPUNIT_ASSERT_EQUAL (((tA->beats_per_minute() - tB->beats_per_minute()) / 2.0) + tB->beats_per_minute(), tA->tempo_at_pulse (10.0));
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CPPUNIT_ASSERT_EQUAL (((tA->pulse() - tB->pulse()) / 2.0) + tB->pulse(), tA->pulse_at_tempo (120, 0, sampling_rate));
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CPPUNIT_ASSERT_EQUAL (((tB->beats_per_minute() - tC->beats_per_minute()) / 2.0) + tC->beats_per_minute(), tB->tempo_at_pulse (25.0));
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CPPUNIT_ASSERT_EQUAL (((tB->pulse() - tC->pulse()) / 2.0) + tC->pulse(), tB->pulse_at_tempo (141.5, 0, sampling_rate));
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CPPUNIT_ASSERT_DOUBLES_EQUAL (((80.0 - 160.0) / 2.0) + 160.0, tA->tempo_at_pulse (10.0), 1e-17);
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CPPUNIT_ASSERT_DOUBLES_EQUAL (20.0 / 2.0, tA->pulse_at_tempo (120, 0, sampling_rate), 1e-17);
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CPPUNIT_ASSERT_DOUBLES_EQUAL (((160.0 - 123.0) / 2.0) + 123.0, tB->tempo_at_pulse (25.0), 1e-17);
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CPPUNIT_ASSERT_DOUBLES_EQUAL (((20.0 - 30.0) / 2.0) + 30.0, tB->pulse_at_tempo (141.5, 0, sampling_rate), 1e-17);
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CPPUNIT_ASSERT_EQUAL (tB->frame(), tA->frame_at_pulse (tB->pulse(), sampling_rate));
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CPPUNIT_ASSERT_EQUAL (tC->frame(), tB->frame_at_pulse (tC->pulse(), sampling_rate));
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CPPUNIT_ASSERT_EQUAL (tB->frame(), tA->frame_at_pulse (20.0, sampling_rate));
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CPPUNIT_ASSERT_EQUAL (tC->frame(), tB->frame_at_pulse (30.0, sampling_rate));
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CPPUNIT_ASSERT_EQUAL (tB->frame(), tA->frame_at_tempo (160.0, 20.0, sampling_rate));
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CPPUNIT_ASSERT_EQUAL (tC->frame(), tB->frame_at_tempo (123.0, 30.0, sampling_rate));
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/* self-check tempo at pulse @ 125 bpm. */
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CPPUNIT_ASSERT_DOUBLES_EQUAL (125.0, tA->tempo_at_pulse (tA->pulse_at_tempo (125.0, 0, sampling_rate)), 0.00000000000000001);
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CPPUNIT_ASSERT_DOUBLES_EQUAL (160.0, tA->tempo_at_pulse (20.0), 0.00000000000000001);
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CPPUNIT_ASSERT_DOUBLES_EQUAL (123.0, tB->tempo_at_pulse (30.0), 0.00000000000000001);
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CPPUNIT_ASSERT_DOUBLES_EQUAL (125.0, tA->tempo_at_pulse (tA->pulse_at_tempo (125.0, 0, sampling_rate)), 1e-17);
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CPPUNIT_ASSERT_DOUBLES_EQUAL (160.0, tA->tempo_at_pulse (20.0), 1e-17);
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CPPUNIT_ASSERT_DOUBLES_EQUAL (123.0, tB->tempo_at_pulse (30.0), 1e-17);
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}
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@ -6,7 +6,8 @@ class TempoTest : public CppUnit::TestFixture
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{
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CPPUNIT_TEST_SUITE (TempoTest);
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CPPUNIT_TEST (recomputeMapTest);
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CPPUNIT_TEST (rampTest);
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CPPUNIT_TEST (rampTest48);
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CPPUNIT_TEST (rampTest44);
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CPPUNIT_TEST (tempoAtPulseTest);
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CPPUNIT_TEST_SUITE_END ();
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@ -15,7 +16,8 @@ public:
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void tearDown () {}
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void recomputeMapTest ();
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void rampTest ();
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void rampTest48 ();
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void rampTest44 ();
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void tempoAtPulseTest();
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};
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