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