129 lines
3.1 KiB
C++
129 lines
3.1 KiB
C++
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/* COMPILE: c++ -o test -I../pbd -I. test.cc */
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#include <iostream>
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#include <iomanip>
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#include "temporal/tempo.h"
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using namespace std;
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using namespace Temporal;
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int
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main (int argc, char* argv[])
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{
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double bpm;
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if (argc < 2) {
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cerr << "Usage: " << argv[0] << " BPM\n";
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return -1;
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}
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if (sscanf (argv[1], "%lf", &bpm) != 1) {
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cerr << "Cannot parse " << argv[1] << " as floating point value\n";
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return -2;
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}
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TempoValue tempo (bpm);
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uint64_t numerator_seconds = 1;
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uint64_t denominator_seconds = 2;
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Temporal::Beats fb = tempo.seconds_as_beats (numerator_seconds, denominator_seconds);
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/* compute 20 minutes of beats:ticks */
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Temporal::Beats b20 = tempo.seconds_as_beats ((20 * 60), 1);
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double d20 = 20.0 * bpm;
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double d20r = 20.0 * tempo.actual_bpm_for_display_only ();
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cout << "bpm " << setprecision (12) << bpm << " => " << tempo << " ticks/second = " << tempo.ticks_per_second ()
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<< " tps " << tempo.ticks_per_second ()
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<< " bpm " << tempo.actual_bpm_for_display_only ()
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<< ' ' << numerator_seconds << '/' << denominator_seconds << " sec = " << fb
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<< " 20 mins = " << b20
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<< " 20 mins " << d20 << " computed " << d20r
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<< " b-as-sc " << tempo.beats_as_superclocks (Beats (1,0))
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<< " scpb " << tempo.superclocks_per_beat ()
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<< endl;
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for (uint32_t tn = 0; tn < Temporal::ticks_per_beat; ++tn) {
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Temporal::Beats b (1, tn);
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double sec = tempo.beats_as_float_seconds_avoid_me (b);
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double csec = (60. / bpm) * (1 + (tn / 1920.));
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if (fabs (sec - csec) > 0.00000001) {
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cout << b << " sec " << sec << " csec " << csec << " err " << sec - csec << endl;
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}
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}
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int rate[] = { 16000, 22050, 24000, 32000, 33075, 44100, 48000, 88200, 96000, 0 };
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for (int s = 0; rate[s] != 0; ++s) {
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cout << "Checking with SR = " << rate[s] << endl;
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double tempos[] = {
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1,
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10,
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30,
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60,
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120,
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240,
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1200,
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33,
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47,
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91 + 4./7,
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100./3.,
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100./7.,
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100./5.,
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100./9.,
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M_PI,
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M_PI * 20.,
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0.
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};
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for (int t = 0; tempos[t] != 0; ++t) {
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tempo = TempoValue (tempos[t]);
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cout << "\tChecking tempo " << tempo.given_bpm_for_display_only () << endl;
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for (uint32_t tn = 0; tn < Temporal::ticks_per_beat; ++tn) {
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Temporal::Beats b (1, tn);
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superclock_t sc = tempo.beats_as_superclocks (b);
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Temporal::Beats b2 = tempo.superclocks_as_beats (sc);
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if (b2 != b) {
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cout << "\t\tb2 " << b2 << " != b " << b << endl;
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}
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uint64_t samples = superclock_to_samples (sc, rate[s]);
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superclock_t sc2 = samples_to_superclock (samples, rate[s]);
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Temporal::Beats b3 = tempo.superclocks_as_beats (sc2);
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if (b3 != b) {
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cout << "\t\tb3 " << b3 << " != b " << b << endl;
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break;
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}
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}
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cout << "Now checking sample positions\n";
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for (int p = 0; p < rate[s]; ++p) {
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superclock_t sc = samples_to_superclock (p, rate[s]);
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Temporal::Beats b = tempo.superclocks_as_beats (sc);
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superclock_t sc2 = tempo.beats_as_superclocks (b);
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uint64_t sm = superclock_to_samples (sc2, rate[s]);
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if (p != sm) {
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cout << "\t\tsm " << sm << " != " << p << endl;
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break;
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}
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}
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}
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}
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return 0;
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}
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