53 lines
1.5 KiB
C++
53 lines
1.5 KiB
C++
#include "timecodefunctions.h"
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#include <QtMath>
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QString padded(int arg, int padding) {
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return QString("%1").arg(arg, padding, 10, QChar('0'));
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}
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QString olive::timestamp_to_timecode(const rational& timestamp,
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const rational& timebase,
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const TimecodeDisplay& display)
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{
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double timestamp_dbl = timestamp.ToDouble();
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switch (display) {
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case kTimecodeFrames:
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case kTimecodeSeconds:
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{
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int total_seconds = qFloor(timestamp_dbl);
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int hours = total_seconds / 3600;
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int mins = total_seconds / 60 - hours * 60;
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int secs = total_seconds - mins * 60;
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if (display == kTimecodeSeconds) {
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int fraction = qRound((timestamp_dbl - total_seconds) * 1000);
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return QString("%1:%2:%3.%4").arg(padded(hours, 2),
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padded(mins, 2),
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padded(secs, 2),
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padded(fraction, 3));
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} else {
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rational frame_rate = timebase.flipped();
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int frames = qRound((timestamp_dbl - total_seconds) * frame_rate.ToDouble());
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return QString("%1:%2:%3;%4").arg(padded(hours, 2),
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padded(mins, 2),
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padded(secs, 2),
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padded(frames, 2));
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}
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}
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case kFrames:
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return QString::number(timestamp.numerator() / timebase.numerator());
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case kMilliseconds:
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return QString::number(qFloor(timestamp_dbl * 1000));
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}
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return QString();
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}
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