Aegisub/aegisub/ass_time.cpp

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// Copyright (c) 2005, Rodrigo Braz Monteiro
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// * Neither the name of the Aegisub Group nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// -----------------------------------------------------------------------------
//
// AEGISUB
//
// Website: http://aegisub.cellosoft.com
// Contact: mailto:zeratul@cellosoft.com
//
////////////
// Includes
#include "config.h"
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#include <fstream>
#include <algorithm>
#include "ass_time.h"
#include "vfr.h"
#include "utils.h"
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////////////////////// AssTime //////////////////////
// AssTime constructors
AssTime::AssTime () {
time = 0;
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}
////////////////////
// Parses from ASS
// ---------------
// Note that this function is atomic, it won't touch the values if it's invalid.
void AssTime::ParseASS (const wxString text) {
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// Prepare
size_t pos = 0;
size_t end = 0;
long th=0,tm=0,tms=0;
// Count the number of colons
size_t len = text.Length();
int colons = 0;
for (pos=0;pos<len;pos++) if (text[pos] == _T(':')) colons++;
pos = 0;
// Set start so that there are only two colons at most
if (colons > 2) {
for (pos=0;pos<len;pos++) {
if (text[pos] == _T(':')) {
colons--;
if (colons == 2) break;
}
}
pos++;
end = pos;
}
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try {
// Hours
if (colons == 2) {
while (text[end++] != _T(':'));
th = StringToInt(text,pos,end);
pos = end;
}
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// Minutes
if (colons >= 1) {
while (text[end++] != _T(':'));
tm = StringToInt(text,pos,end);
pos = end;
}
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// Miliseconds (includes seconds)
end = text.Length();
tms = StringToFix(text,3,pos,end);
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}
// Something went wrong, don't change anything
catch (...) {
return;
}
// OK, set values
time = tms + tm*60000 + th*3600000;
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}
///////////////////
// Parses from SRT
void AssTime::ParseSRT (const wxString _text) {
// Prepare
wxString text = _text;
text.Trim(false);
text.Trim(true);
long tempv;
wxString temp;
int ms,s,m,h;
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// Parse
temp = text.Mid(0,2);
temp.ToLong(&tempv);
h = tempv;
temp = text.Mid(3,2);
temp.ToLong(&tempv);
m = tempv;
temp = text.Mid(6,2);
temp.ToLong(&tempv);
s = tempv;
temp = text.Mid(9,3);
temp.ToLong(&tempv);
ms = tempv;
// Set value
time = ms + s*1000 + m*60000 + h*3600000;
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}
//////////////////////////////////////////
// AssTime conversion to/from miliseconds
int AssTime::GetMS () {
if (!UseMSPrecision) return time/10*10;
else return time;
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}
void AssTime::SetMS (int _ms) {
time = _ms;
}
////////////////
// ASS Formated
wxString AssTime::GetASSFormated (bool msPrecision) {
int h,m,s,ms;
int _ms = time;
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// Centisecond precision
msPrecision = msPrecision || UseMSPrecision;
if (!msPrecision) _ms = _ms/10*10;
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// Reset
h = m = s = ms = 0;
if (_ms < 0) _ms = 0;
// Hours
while (_ms >= 3600000) {
_ms -= 3600000;
h++;
}
// Ass overflow
if (h > 9) {
h = 9;
m = 59;
s = 59;
ms = 999;
}
// Minutes
while (_ms >= 60000) {
_ms -= 60000;
m++;
}
// Seconds
while (_ms >= 1000) {
_ms -= 1000;
s++;
}
ms = _ms;
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if (msPrecision) return wxString::Format(_T("%01i:%02i:%02i.%03i"),h,m,s,ms);
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else return wxString::Format(_T("%01i:%02i:%02i.%02i"),h,m,s,ms/10);
}
////////////////
// SRT Formated
wxString AssTime::GetSRTFormated () {
int h,m,s,ms;
int _ms = time;
// Centisecond precision
if (!UseMSPrecision) _ms = _ms/10*10;
// Reset
h = m = s = ms = 0;
if (_ms < 0) _ms = 0;
// Hours
while (_ms >= 3600000) {
_ms -= 3600000;
h++;
}
// Ass overflow
if (h > 9) {
h = 9;
m = 59;
s = 59;
ms = 999;
}
// Minutes
while (_ms >= 60000) {
_ms -= 60000;
m++;
}
// Seconds
while (_ms >= 1000) {
_ms -= 1000;
s++;
}
ms = _ms;
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wxString result = wxString::Format(_T("%02i:%02i:%02i,%03i"),h,m,s,ms);
return result;
}
///////////////////
// SMPTE formatted
wxString AssTime::GetSMPTE(double fps)
{
int f = int(GetTimeMiliseconds() * fps / 1000.0);
return wxString::Format(_T("%02i:%02i:%02i:%02i"),GetTimeHours(),GetTimeMinutes(),GetTimeSeconds(),f);
}
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//////////////////////
// AssTime comparison
bool operator < (AssTime &t1, AssTime &t2) {
return (t1.GetMS() < t2.GetMS());
}
bool operator > (AssTime &t1, AssTime &t2) {
return (t1.GetMS() > t2.GetMS());
}
bool operator <= (AssTime &t1, AssTime &t2) {
return (t1.GetMS() <= t2.GetMS());
}
bool operator >= (AssTime &t1, AssTime &t2) {
return (t1.GetMS() >= t2.GetMS());
}
bool operator == (AssTime &t1, AssTime &t2) {
return (t1.GetMS() == t2.GetMS());
}
bool operator != (AssTime &t1, AssTime &t2) {
return (t1.GetMS() != t2.GetMS());
}
/////////////////
// Static option
bool AssTime::UseMSPrecision = false;
///////
// Get
int AssTime::GetTimeHours() { return time / 3600000; }
int AssTime::GetTimeMinutes() { return (time % 3600000)/60000; }
int AssTime::GetTimeSeconds() { return (time % 60000)/1000; }
int AssTime::GetTimeMiliseconds() { return (time % 1000); }
int AssTime::GetTimeCentiseconds() { return (time % 1000)/10; }