#include "samplepos_plus_beats_test.h" #include "ardour/tempo.h" #include "temporal/bbt_time.h" CPPUNIT_TEST_SUITE_REGISTRATION (FrameposPlusBeatsTest); using namespace std; using namespace ARDOUR; using namespace Timecode; /* Basic tests with no tempo / meter changes */ void FrameposPlusBeatsTest::singleTempoTest () { int const sampling_rate = 48000; int const bpm = 120; double const samples_per_beat = (60 / double (bpm)) * double (sampling_rate); TempoMap map (sampling_rate); Tempo tempo (bpm, 4.0); Meter meter (4, 4); map.replace_meter (map.first_meter(), meter, BBT_Time (1, 1, 0), 0, AudioTime); map.replace_tempo (map.first_tempo(), tempo, 0.0, 0, AudioTime); /* Add 1 beat to beat 3 of the first bar */ samplepos_t r = map.samplepos_plus_qn (samples_per_beat * 2, Temporal::Beats(1)); CPPUNIT_ASSERT_EQUAL (samplepos_t (samples_per_beat * 3), r); /* Add 4 beats to a -ve sample of 1 beat before zero */ r = map.samplepos_plus_qn (-samples_per_beat * 1, Temporal::Beats(4)); CPPUNIT_ASSERT_EQUAL (samplepos_t (samples_per_beat * 3), r); } /* Test adding things that overlap a tempo change */ void FrameposPlusBeatsTest::doubleTempoTest () { int const sampling_rate = 48000; TempoMap map (sampling_rate); Meter meter (4, 4); map.replace_meter (map.first_meter(), meter, 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 4.4 | */ Tempo tempoA (120, 4.0); map.replace_tempo (map.first_tempo(), tempoA, 0.0, 0, AudioTime); Tempo tempoB (240, 4.0); map.add_tempo (tempoB, 12.0 / tempoA.note_type(), 0, MusicTime); /* Now some tests */ /* Add 1 beat to 1|2 */ samplepos_t r = map.samplepos_plus_qn (24e3, Temporal::Beats(1)); CPPUNIT_ASSERT_EQUAL (samplepos_t (48e3), r); /* Add 2 beats to 3|4 (over the tempo change) */ r = map.samplepos_plus_qn (264e3, Temporal::Beats(2)); CPPUNIT_ASSERT_EQUAL (samplepos_t (264e3 + 24e3 + 12e3), r); /* Add 2.5 beats to 3|3|960 (over the tempo change) */ r = map.samplepos_plus_qn (264e3 - 12e3, Temporal::Beats(2.5)); CPPUNIT_ASSERT_EQUAL (samplepos_t (264e3 + 24e3 + 12e3), r); } /* Same as doubleTempoTest () except put a meter change at the same time as the tempo change (which shouldn't affect anything, since we are just dealing with beats) */ void FrameposPlusBeatsTest::doubleTempoWithMeterTest () { 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, 4.0); map.replace_tempo (map.first_tempo(), tempoA, 0.0, 0, AudioTime); Tempo tempoB (240, 4.0); map.add_tempo (tempoB, 12.0 / tempoA.note_type(), 0, MusicTime); Meter meterB (3, 8); map.add_meter (meterB, BBT_Time (4, 1, 0), 0, MusicTime); /* Now some tests */ /* Add 1 beat to 1|2 */ samplepos_t r = map.samplepos_plus_qn (24e3, Temporal::Beats(1)); CPPUNIT_ASSERT_EQUAL (samplepos_t (48e3), r); /* Add 2 beats to 3|4 (over the tempo change) */ r = map.samplepos_plus_qn (264e3, Temporal::Beats(2)); CPPUNIT_ASSERT_EQUAL (samplepos_t (264e3 + 24e3 + 12e3), r); /* Add 2.5 beats to 3|3|960 (over the tempo change) */ r = map.samplepos_plus_qn (264e3 - 12e3, Temporal::Beats(2.5)); CPPUNIT_ASSERT_EQUAL (samplepos_t (264e3 + 24e3 + 12e3), r); } /* Same as doubleTempoWithMeterTest () except use odd meter divisors (which shouldn't affect anything, since we are just dealing with beats) */ void FrameposPlusBeatsTest::doubleTempoWithComplexMeterTest () { int const sampling_rate = 48000; TempoMap map (sampling_rate); Meter meterA (3, 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 5/8 240bpm 0 beats 9 quarter note beats 12 quarter note beats 9 meter-based beat 15 meter-based beat 0 samples 288e3 samples 0 pulses | 3 pulses | | | | | | 1.1 1.2 1.3 | 2.1 2.2 2.3 | 3.1 3.2 3.3 |4.14.24.34.44.5|5.15.2^5.35.45.5| | 4|1|0 */ Tempo tempoA (120, 4.0); map.replace_tempo (map.first_tempo(), tempoA, 0.0, 0, AudioTime); Tempo tempoB (240, 4.0); map.add_tempo (tempoB, 12.0 / 4.0, 0, MusicTime); Meter meterB (5, 8); map.add_meter (meterB, BBT_Time (4, 1, 0), 0, MusicTime); /* Now some tests */ /* Add 1 beat to 1|2 */ samplepos_t r = map.samplepos_plus_qn (24e3, Temporal::Beats(1)); CPPUNIT_ASSERT_EQUAL (samplepos_t (48e3), r); /* Add 2 beats to 5|1 (over the tempo change) */ r = map.samplepos_plus_qn (264e3, Temporal::Beats(2)); CPPUNIT_ASSERT_EQUAL (samplepos_t (264e3 + 24e3 + 12e3), r); /* Add 2.5 beats to 4|5 (over the tempo change) */ r = map.samplepos_plus_qn (264e3 - 12e3, Temporal::Beats(2.5)); CPPUNIT_ASSERT_EQUAL (samplepos_t (264e3 + 24e3 + 12e3), r); }