begin : Wed Dec 17 2003
copyright : (C) 2003 by Jason Wood
email : jasonwood@blueyonder.co.uk
+ * Copyright (C) 2010 by Jean-Baptiste Mardelle (jb@kdenlive.org) *
***************************************************************************/
/***************************************************************************
* (at your option) any later version. *
* *
***************************************************************************/
-#include "timecode.h"
-#include <kdebug.h>
-#include <klocale.h>
+/*
+
+ Timecode calculation code for reference
+ If we ever use Quicktime timecode with 50.94 Drop frame, keep in mind that there is a bug inthe Quicktime code
+
+//CONVERT A FRAME NUMBER TO DROP FRAME TIMECODE
+//Code by David Heidelberger, adapted from Andrew Duncan
+//Given an int called framenumber and a double called framerate
+//Framerate should be 29.97, 59.94, or 23.976, otherwise the calculations will be off.
+
+int d;
+int m;
+
+int dropFrames = round(framerate * .066666); //Number of frames to drop on the minute marks is the nearest integer to 6% of the framerate
+int framesPerHour = round(framerate*60*60); //Number of frames in an hour
+int framesPer24Hours = framesPerHour*24; //Number of frames in a day - timecode rolls over after 24 hours
+int framesPer10Minutes = round(framerate * 60 * 10); //Number of frames per ten minutes
+int framesPerMinute = round(framerate)*60)- dropFrames; //Number of frames per minute is the round of the framerate * 60 minus the number of dropped frames
+
+if (framenumber<0) //Negative time. Add 24 hours.
+{
+ framenumber=framesPer24Hours+framenumber;
+}
+
+//If framenumber is greater than 24 hrs, next operation will rollover clock
+framenumber = framenumber % framesPer24Hours; //% is the modulus operator, which returns a remainder. a % b = the remainder of a/b
+
+d = framenumber\framesPer10Minutes; // \ means integer division, which is a/b without a remainder. Some languages you could use floor(a/b)
+m = framenumber % framesPer10Minutes;
+
+if (m>1)
+{
+ framenumber=framenumber + (dropFrames*9*d) + dropFrames*((m-dropFrames)\framesPerMinute);
+}
+else
+{
+ framenumber = framenumber + dropFrames*9*d;
+}
+
+int frRound = round(framerate);
+int frames = framenumber % frRound;
+int seconds = (framenumber \ frRound) % 60;
+int minutes = ((framenumber \ frRound) \ 60) % 60;
+int hours = (((framenumber \ frRound) \ 60) \ 60);
+
+
+------------------------------------------------------------------------------------
+
+//CONVERT DROP FRAME TIMECODE TO A FRAME NUMBER
+//Code by David Heidelberger, adapted from Andrew Duncan
+//Given ints called hours, minutes, seconds, frames, and a double called framerate
+
+int dropFrames = round(framerate*.066666); //Number of drop frames is 6% of framerate rounded to nearest integer
+int timeBase = round(framerate); //We don’t need the exact framerate anymore, we just need it rounded to nearest integer
+
+int hourFrames = timeBase*60*60; //Number of frames per hour (non-drop)
+int minuteFrames = timeBase*60; //Number of frames per minute (non-drop)
+int totalMinutes = (60*hours) + minutes; //Total number of minuts
+int frameNumber = ((hourFrames * hours) + (minuteFrames * minutes) + (timeBase * seconds) + frames) - (dropFrames * (totalMinutes - (totalMinutes \ 10)));
+return frameNumber;
+
+*/
+
+
+
+#include <KDebug>
+#include <KLocale>
+
+#include "timecode.h"
-Timecode::Timecode(Formats format, int framesPerSecond,
- bool dropFrame): m_format(format), m_dropFrame(dropFrame),
- m_displayedFramesPerSecond(framesPerSecond)
+Timecode::Timecode(Formats format, double framesPerSecond)
{
+ setFormat(framesPerSecond, format);
}
Timecode::~Timecode()
{
}
-int Timecode::fps()
+void Timecode::setFormat(double framesPerSecond, Formats format)
+{
+ m_displayedFramesPerSecond = (int)(framesPerSecond + 0.5);
+ m_dropFrameTimecode = (framesPerSecond / 1.00 != (int)framesPerSecond) ;
+ m_format = format;
+ m_realFps = framesPerSecond;
+ if (m_dropFrameTimecode) {
+ m_dropFrames = round(m_realFps * .066666); //Number of frames to drop on the minute marks is the nearest integer to 6% of the framerate
+ m_framesPer10Minutes = round(m_realFps * 600); //Number of frames per ten minutes
+ }
+}
+
+double Timecode::fps() const
+{
+ return m_realFps;
+}
+
+bool Timecode::df() const
+{
+ return m_dropFrameTimecode;
+}
+
+const QString Timecode::mask(const GenTime& t) const
+{
+ if (t < GenTime()) {
+ if (m_dropFrameTimecode) return "#99:99:99,99";
+ else return "#99:99:99:99";
+ }
+ if (m_dropFrameTimecode) return "99:99:99,99";
+ else return "99:99:99:99";
+}
+
+QString Timecode::reformatSeparators(QString duration) const
{
- return m_displayedFramesPerSecond;
+ if (m_dropFrameTimecode)
+ return duration.replace(8, 1, ',');
+ return duration.replace(8, 1, ':');
}
+int Timecode::getDisplayFrameCount(const QString &duration, bool frameDisplay) const
+{
+ if (frameDisplay) return duration.toInt();
+ return getFrameCount(duration);
+}
-int Timecode::getFrameCount(const QString duration, double fps) const
+int Timecode::getFrameCount(const QString &duration) const
{
- if (m_dropFrame) {
- // calculate how many frames need to be dropped every minute.
- int frames;
- int toDrop = (int) floor(600.0 * (m_displayedFramesPerSecond - fps) + 0.5);
-
- int perMinute = toDrop / 9;
- int tenthMinute = toDrop % 9;
-
- // calculate how many frames are in a normal minute, and how many are in a tenth minute.
- int normalMinuteFrames = (m_displayedFramesPerSecond * 60) - perMinute;
- int tenthMinuteFrames = (m_displayedFramesPerSecond * 60) - tenthMinute;;
-
- // Number of actual frames in a 10 minute interval :
- int tenMinutes = (normalMinuteFrames * 9) + tenthMinuteFrames;
- frames = 6 * duration.section(':', 0, 0).toInt() * tenMinutes;
- int minutes = duration.section(':', 1, 1).toInt();
- frames += ((int) minutes / 10) * tenMinutes;
- int mins = minutes % 10;
- if (mins > 0) {
- frames += tenthMinuteFrames;
- mins--;
- if (mins > 0) frames += mins * normalMinuteFrames;
- }
- if (minutes % 10 > 0) frames -= perMinute;
- frames += duration.section(':', 2, 2).toInt() * m_displayedFramesPerSecond + duration.section(':', 3, 3).toInt();
- return frames;
+ if (duration.isEmpty()) {
+ return 0;
+ }
+ int hours, minutes, seconds, frames;
+ int offset = 0;
+ if (duration.at(0) == '-') {
+ offset = 1;
+ hours = duration.mid(1, 2).toInt();
+ } else {
+ hours = duration.left(2).toInt();
+ }
+ minutes = duration.mid(3 + offset, 2).toInt();
+ seconds = duration.mid(6 + offset, 2).toInt();
+ frames = duration.right(2).toInt();
+ if (m_dropFrameTimecode) {
+ //CONVERT DROP FRAME TIMECODE TO A FRAME NUMBER
+ //Code by David Heidelberger, adapted from Andrew Duncan
+ //Given ints called hours, minutes, seconds, frames, and a double called framerate
+
+ int totalMinutes = (60 * hours) + minutes; //Total number of minutes
+ int frameNumber = ((m_displayedFramesPerSecond * 3600 * hours) + (m_displayedFramesPerSecond * 60 * minutes) + (m_displayedFramesPerSecond * seconds) + frames) - (m_dropFrames * (totalMinutes - floor(totalMinutes / 10)));
+ return frameNumber;
}
- return (int)((duration.section(':', 0, 0).toInt()*3600.0 + duration.section(':', 1, 1).toInt()*60.0 + duration.section(':', 2, 2).toInt()) * fps + duration.section(':', 3, 3).toInt());
+ return (int)((hours * 3600.0 + minutes * 60.0 + seconds) * m_realFps + frames);
}
-QString Timecode::getTimecode(const GenTime & time, double fps) const
+QString Timecode::getDisplayTimecode(const GenTime & time, bool frameDisplay) const
+{
+ if (frameDisplay) return QString::number((int) time.frames(m_realFps));
+ return getTimecode(time);
+}
+
+QString Timecode::getTimecode(const GenTime & time) const
{
switch (m_format) {
case HH_MM_SS_FF:
- return getTimecodeHH_MM_SS_FF(time, fps);
+ return getTimecodeHH_MM_SS_FF(time);
break;
case HH_MM_SS_HH:
return getTimecodeHH_MM_SS_HH(time);
break;
case Frames:
- return getTimecodeFrames(time, fps);
+ return getTimecodeFrames(time);
break;
case Seconds:
return getTimecodeSeconds(time);
kWarning() <<
"Unknown timecode format specified, defaulting to HH_MM_SS_FF"
<< endl;
- return getTimecodeHH_MM_SS_FF(time, fps);
+ return getTimecodeHH_MM_SS_FF(time);
}
}
-QString Timecode::getTimecodeFromFrames(int frames)
+const QString Timecode::getDisplayTimecodeFromFrames(int frames, bool frameDisplay) const
+{
+ if (frameDisplay) return QString::number(frames);
+ return getTimecodeHH_MM_SS_FF(frames);
+}
+
+const QString Timecode::getTimecodeFromFrames(int frames) const
{
return getTimecodeHH_MM_SS_FF(frames);
}
+
+//static
+QString Timecode::getStringTimecode(int frames, const double &fps, bool showFrames)
+{
+ // Returns the timecode in an hh:mm:ss format
+
+ bool negative = false;
+ if (frames < 0) {
+ negative = true;
+ frames = qAbs(frames);
+ }
+
+ int seconds = (int)(frames / fps);
+ int frms = frames % (int) (fps + 0.5);
+ int minutes = seconds / 60;
+ seconds = seconds % 60;
+ int hours = minutes / 60;
+ minutes = minutes % 60;
+ QString text;
+ if (negative)
+ text.append('-');
+ text.append(QString::number(hours).rightJustified(2, '0', false));
+ text.append(':');
+ text.append(QString::number(minutes).rightJustified(2, '0', false));
+ text.append(':');
+ text.append(QString::number(seconds).rightJustified(2, '0', false));
+ if (showFrames) {
+ text.append('.');
+ text.append(QString::number(frms).rightJustified(2, '0', false));
+ }
+ return text;
+}
+
+
//static
QString Timecode::getEasyTimecode(const GenTime & time, const double &fps)
{
// Returns the timecode in an easily read display, like 3 min. 5 sec.
- int frames = (int)time.frames(fps);
- int seconds = frames / (int) floor(fps + 0.5);
- frames = frames % ((int) fps);
+ int frames = (int) time.frames(fps);
+
+ bool negative = false;
+ if (frames < 0) {
+ negative = true;
+ frames = qAbs(frames);
+ }
+
+ int seconds = (int)(frames / fps);
+ frames = frames - ((int)(fps * seconds));
int minutes = seconds / 60;
seconds = seconds % 60;
QString text;
bool trim = false;
+ if (negative)
+ text.append('-');
if (hours != 0) {
text.append(QString::number(hours).rightJustified(2, '0', false));
text.append(' ' + i18n("hour") + ' ');
}
-QString Timecode::getTimecodeHH_MM_SS_FF(const GenTime & time, double fps) const
+const QString Timecode::getTimecodeHH_MM_SS_FF(const GenTime & time) const
{
- if (m_dropFrame)
- return getTimecodeDropFrame(time, fps);
-
- return getTimecodeHH_MM_SS_FF((int)time.frames(fps));
+ if (m_dropFrameTimecode) {
+ return getTimecodeDropFrame(time);
+ }
+ return getTimecodeHH_MM_SS_FF((int) time.frames(m_realFps));
}
-QString Timecode::getTimecodeHH_MM_SS_FF(int frames) const
+const QString Timecode::getTimecodeHH_MM_SS_FF(int frames) const
{
+ if (m_dropFrameTimecode) {
+ return getTimecodeDropFrame(frames);
+ }
+
+ bool negative = false;
+ if (frames < 0) {
+ negative = true;
+ frames = qAbs(frames);
+ }
+
int seconds = frames / m_displayedFramesPerSecond;
frames = frames % m_displayedFramesPerSecond;
minutes = minutes % 60;
QString text;
-
+ if (negative)
+ text.append('-');
text.append(QString::number(hours).rightJustified(2, '0', false));
text.append(':');
text.append(QString::number(minutes).rightJustified(2, '0', false));
return text;
}
-QString Timecode::getTimecodeHH_MM_SS_HH(const GenTime & time) const
+const QString Timecode::getTimecodeHH_MM_SS_HH(const GenTime & time) const
{
int hundredths = (int)(time.seconds() * 100);
+
+ bool negative = false;
+ if (hundredths < 0) {
+ negative = true;
+ hundredths = qAbs(hundredths);
+ }
+
int seconds = hundredths / 100;
hundredths = hundredths % 100;
int minutes = seconds / 60;
minutes = minutes % 60;
QString text;
-
+ if (negative)
+ text.append('-');
text.append(QString::number(hours).rightJustified(2, '0', false));
text.append(':');
text.append(QString::number(minutes).rightJustified(2, '0', false));
text.append(':');
text.append(QString::number(seconds).rightJustified(2, '0', false));
- text.append(':');
+ if (m_dropFrameTimecode)
+ text.append(',');
+ else
+ text.append(':');
text.append(QString::number(hundredths).rightJustified(2, '0', false));
return text;
}
-QString Timecode::getTimecodeFrames(const GenTime & time, double fps) const
+const QString Timecode::getTimecodeFrames(const GenTime & time) const
{
- return QString::number(time.frames(fps));
+ return QString::number((int) time.frames(m_realFps));
}
-QString Timecode::getTimecodeSeconds(const GenTime & time) const
+const QString Timecode::getTimecodeSeconds(const GenTime & time) const
{
- return QString::number(time.seconds());
+ QLocale locale;
+ return locale.toString(time.seconds());
}
-QString Timecode::getTimecodeDropFrame(const GenTime & time, double fps) const
+const QString Timecode::getTimecodeDropFrame(const GenTime & time) const
{
- // Calculate the timecode using dropframes to remove the difference in fps. Note that this algorithm should work
- // for NTSC times, but is untested for any others - it is in no way an "official" algorithm, unless it's by fluke.
- int frames = (int)time.frames(fps);
-
- // calculate how many frames need to be dropped every minute.
- int toDrop = (int) floor(600.0 * (m_displayedFramesPerSecond - fps) + 0.5);
-
- int perMinute = toDrop / 9;
- int tenthMinute = toDrop % 9;
-
- // calculate how many frames are in a normal minute, and how many are in a tenth minute.
- int normalMinuteFrames = (m_displayedFramesPerSecond * 60) - perMinute;
- int tenthMinuteFrames = (m_displayedFramesPerSecond * 60) - tenthMinute;;
-
- // Number of actual frames in a 10 minute interval :
- int tenMinutes = (normalMinuteFrames * 9) + tenthMinuteFrames;
-
- int tenMinuteIntervals = frames / tenMinutes;
- frames = frames % tenMinutes;
-
- int hours = tenMinuteIntervals / 6;
- tenMinuteIntervals = tenMinuteIntervals % 6;
+ return getTimecodeDropFrame((int)time.frames(m_realFps));
+}
- // At the point, we have figured out HH:M?:??:??
+const QString Timecode::getTimecodeDropFrame(int framenumber) const
+{
+ //CONVERT A FRAME NUMBER TO DROP FRAME TIMECODE
+ //Based on code by David Heidelberger, adapted from Andrew Duncan
+ //Given an int called framenumber and a double called framerate
+ //Framerate should be 29.97, 59.94, or 23.976, otherwise the calculations will be off.
+
+ bool negative = false;
+ if (framenumber < 0) {
+ negative = true;
+ framenumber = qAbs(framenumber);
+ }
- int numMinutes;
+ int d = floor(framenumber / m_framesPer10Minutes);
+ int m = framenumber % m_framesPer10Minutes;
- if (frames < tenthMinuteFrames) {
- // tenth minute logic applies.
- numMinutes = 0;
+ if (m > m_dropFrames) {
+ framenumber += (m_dropFrames * 9 * d) + m_dropFrames * (floor((m - m_dropFrames) / (round(m_realFps * 60) - m_dropFrames)));
} else {
- // normal minute logic applies.
- numMinutes = 1 + (frames - tenthMinuteFrames) / normalMinuteFrames;
- frames = (frames - tenthMinuteFrames) % normalMinuteFrames;
- frames += tenthMinute + perMinute;
+ framenumber += m_dropFrames * 9 * d;
}
- // We now have HH:MM:??:??
- int seconds = frames / m_displayedFramesPerSecond;
- frames = frames % m_displayedFramesPerSecond;
-
- // We now have HH:MM:SS:FF
-
- // THANK FUCK FOR THAT.
+ int frames = framenumber % m_displayedFramesPerSecond;
+ int seconds = (int) floor(framenumber / m_displayedFramesPerSecond) % 60;
+ int minutes = (int) floor(floor(framenumber / m_displayedFramesPerSecond) / 60) % 60;
+ int hours = floor(floor(floor(framenumber / m_displayedFramesPerSecond) / 60) / 60);
QString text;
+ if (negative)
+ text.append('-');
text.append(QString::number(hours).rightJustified(2, '0', false));
text.append(':');
- text.append(QString::number(tenMinuteIntervals));
- text.append(QString::number(numMinutes));
+ text.append(QString::number(minutes).rightJustified(2, '0', false));
text.append(':');
text.append(QString::number(seconds).rightJustified(2, '0', false));
- text.append(':');
+ text.append(',');
text.append(QString::number(frames).rightJustified(2, '0', false));
return text;
projects / kdenlive / blobdiff