142 lines
4.4 KiB
C++
142 lines
4.4 KiB
C++
#include "samplepos_minus_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 (FrameposMinusBeatsTest);
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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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using namespace Evoral;
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/* Basic tests with no tempo / meter changes */
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void
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FrameposMinusBeatsTest::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);
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Meter meter (4, 4);
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map.replace_meter (map.first_meter(), meter, BBT_Time (1, 1, 0), (samplepos_t) 0, AudioTime);
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map.replace_tempo (map.first_tempo(), tempo, 0.0, 0, TempoSection::Constant, AudioTime);
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/* Subtract 1 beat from beat 3 of the first bar */
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samplepos_t r = map.samplepos_minus_qn (samples_per_beat * 2, Beats(1));
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CPPUNIT_ASSERT_EQUAL (r, samplepos_t (samples_per_beat * 1));
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/* Subtract 4 beats from 3 beats in, to go beyond zero */
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r = map.samplepos_minus_qn (samples_per_beat * 3, Beats(4));
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CPPUNIT_ASSERT_EQUAL (r, samplepos_t (- samples_per_beat));
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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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FrameposMinusBeatsTest::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), (samplepos_t) 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 4 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);
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map.replace_tempo (map.first_tempo(), tempoA, 0.0, 0, TempoSection::Constant, AudioTime);
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Tempo tempoB (240);
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map.add_tempo (tempoB, 12.0 / tempoA.note_type(), 0, TempoSection::Constant, MusicTime);
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/* Now some tests */
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/* Subtract 1 beat from 1|2 */
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samplepos_t r = map.samplepos_minus_qn (24e3, Beats(1));
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CPPUNIT_ASSERT_EQUAL (r, samplepos_t (0));
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/* Subtract 2 beats from 4|2 (over the tempo change) */
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r = map.samplepos_minus_qn (288e3 + 12e3, Beats(2));
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CPPUNIT_ASSERT_EQUAL (r, samplepos_t (288e3 - 24e3));
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/* Subtract 2.5 beats from 4|2 (over the tempo change) */
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r = map.samplepos_minus_qn (288e3 + 12e3, Beats(2.5));
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CPPUNIT_ASSERT_EQUAL (r, samplepos_t (288e3 - 24e3 - 12e3));
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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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FrameposMinusBeatsTest::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), (samplepos_t) 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);
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map.replace_tempo (map.first_tempo(), tempoA, 0.0, 0, TempoSection::Constant, AudioTime);
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Tempo tempoB (240);
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map.add_tempo (tempoB, 12.0 / tempoA.note_type(), 0, TempoSection::Constant, MusicTime);
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Meter meterB (3, 4);
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map.add_meter (meterB, 12.0, BBT_Time (4, 1, 0), 0, MusicTime);
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/* Now some tests */
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/* Subtract 1 beat from 1|2 */
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samplepos_t r = map.samplepos_minus_qn (24e3, Beats(1));
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CPPUNIT_ASSERT_EQUAL (r, samplepos_t (0));
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/* Subtract 2 beats from 4|2 (over the tempo change) */
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r = map.samplepos_minus_qn (288e3 + 12e3, Beats(2));
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CPPUNIT_ASSERT_EQUAL (r, samplepos_t (288e3 - 24e3));
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/* Subtract 2.5 beats from 4|2 (over the tempo change) */
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r = map.samplepos_minus_qn (288e3 + 12e3, Beats(2.5));
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CPPUNIT_ASSERT_EQUAL (r, samplepos_t (288e3 - 24e3 - 12e3));
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}
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