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#include "framepos_plus_beats_test.h"
#include "ardour/tempo.h"
#include "timecode/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 frames_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), AudioTime);
map.replace_tempo (map.first_tempo(), tempo, 0.0, 0, TempoSection::Constant, AudioTime);
/* Add 1 beat to beat 3 of the first bar */
framepos_t r = map.framepos_plus_qn (frames_per_beat * 2, Evoral::Beats(1));
CPPUNIT_ASSERT_EQUAL (framepos_t (frames_per_beat * 3), r);
/* Add 4 beats to a -ve frame of 1 beat before zero */
r = map.framepos_plus_qn (-frames_per_beat * 1, Evoral::Beats(4));
CPPUNIT_ASSERT_EQUAL (framepos_t (frames_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), 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 frames 288e3 frames
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, TempoSection::Constant, AudioTime);
Tempo tempoB (240, 4.0);
map.add_tempo (tempoB, 12.0 / tempoA.note_type(), 0, TempoSection::Constant, MusicTime);
/* Now some tests */
/* Add 1 beat to 1|2 */
framepos_t r = map.framepos_plus_qn (24e3, Evoral::Beats(1));
CPPUNIT_ASSERT_EQUAL (framepos_t (48e3), r);
/* Add 2 beats to 3|4 (over the tempo change) */
r = map.framepos_plus_qn (264e3, Evoral::Beats(2));
CPPUNIT_ASSERT_EQUAL (framepos_t (264e3 + 24e3 + 12e3), r);
/* Add 2.5 beats to 3|3|960 (over the tempo change) */
r = map.framepos_plus_qn (264e3 - 12e3, Evoral::Beats(2.5));
CPPUNIT_ASSERT_EQUAL (framepos_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), 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 frames 288e3 frames
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, TempoSection::Constant, AudioTime);
Tempo tempoB (240, 4.0);
map.add_tempo (tempoB, 12.0 / tempoA.note_type(), 0, TempoSection::Constant, MusicTime);
Meter meterB (3, 8);
map.add_meter (meterB, 12.0, BBT_Time (4, 1, 0), MusicTime);
/* Now some tests */
/* Add 1 beat to 1|2 */
framepos_t r = map.framepos_plus_qn (24e3, Evoral::Beats(1));
CPPUNIT_ASSERT_EQUAL (framepos_t (48e3), r);
/* Add 2 beats to 3|4 (over the tempo change) */
r = map.framepos_plus_qn (264e3, Evoral::Beats(2));
CPPUNIT_ASSERT_EQUAL (framepos_t (264e3 + 24e3 + 12e3), r);
/* Add 2.5 beats to 3|3|960 (over the tempo change) */
r = map.framepos_plus_qn (264e3 - 12e3, Evoral::Beats(2.5));
CPPUNIT_ASSERT_EQUAL (framepos_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), 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 frames 288e3 frames
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, TempoSection::Constant, AudioTime);
Tempo tempoB (240, 4.0);
map.add_tempo (tempoB, 12.0 / 4.0, 0, TempoSection::Constant, MusicTime);
Meter meterB (5, 8);
map.add_meter (meterB, 9.0, BBT_Time (4, 1, 0), MusicTime);
/* Now some tests */
/* Add 1 beat to 1|2 */
framepos_t r = map.framepos_plus_qn (24e3, Evoral::Beats(1));
CPPUNIT_ASSERT_EQUAL (framepos_t (48e3), r);
/* Add 2 beats to 5|1 (over the tempo change) */
r = map.framepos_plus_qn (264e3, Evoral::Beats(2));
CPPUNIT_ASSERT_EQUAL (framepos_t (264e3 + 24e3 + 12e3), r);
/* Add 2.5 beats to 4|5 (over the tempo change) */
r = map.framepos_plus_qn (264e3 - 12e3, Evoral::Beats(2.5));
CPPUNIT_ASSERT_EQUAL (framepos_t (264e3 + 24e3 + 12e3), r);
}
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