forked from mia/Aegisub
2124a1dbd3
Rather than going through a ton of work to ensure that every AssEvent has a sensible start time that happens to leave it in the right place after sorting, simply sort only consecutive blocks of AssDialogues and leave everything else untouched. Note that this results in different behavior when there are multiple [Events] sections in a file -- rather than moving lines between sections and keeping the number of lines per section constant, each section keeps the lines it had. As it's now easy to do, also add sorting by style name and end time. Closes #614. Originally committed to SVN as r4307.
533 lines
11 KiB
C++
533 lines
11 KiB
C++
// Copyright (c) 2005, Rodrigo Braz Monteiro
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of the Aegisub Group nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// Aegisub Project http://www.aegisub.org/
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//
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// $Id$
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/// @file ass_time.cpp
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/// @brief Class for managing timestamps in subtitles
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/// @ingroup subs_storage
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///
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////////////
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// Includes
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#include "config.h"
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#ifndef AGI_PRE
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#include <math.h>
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#include <algorithm>
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#include <fstream>
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#include <wx/regex.h>
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#endif
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#include "ass_time.h"
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#include "utils.h"
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#include "vfr.h"
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/// @brief AssTime constructors
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AssTime::AssTime () : time(0) { }
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AssTime::AssTime (int time) : time(time) { }
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/// @brief Note that this function is atomic, it won't touch the values if it's invalid. --------------- Parses from ASS
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/// @param text
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/// @return
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///
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void AssTime::ParseASS (const wxString text) {
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// Prepare
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size_t pos = 0;
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size_t end = 0;
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long th=0,tm=0,tms=0;
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// Count the number of colons
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size_t len = text.Length();
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int colons = 0;
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for (pos=0;pos<len;pos++) if (text[pos] == _T(':')) colons++;
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pos = 0;
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// Set start so that there are only two colons at most
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if (colons > 2) {
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for (pos=0;pos<len;pos++) {
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if (text[pos] == _T(':')) {
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colons--;
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if (colons == 2) break;
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}
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}
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pos++;
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end = pos;
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}
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try {
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// Hours
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if (colons == 2) {
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while (text[end++] != _T(':')) {};
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th = AegiStringToInt(text,pos,end);
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pos = end;
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}
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// Minutes
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if (colons >= 1) {
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while (text[end++] != _T(':')) {};
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tm = AegiStringToInt(text,pos,end);
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pos = end;
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}
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// Miliseconds (includes seconds)
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end = text.Length();
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tms = AegiStringToFix(text,3,pos,end);
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}
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// Something went wrong, don't change anything
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catch (...) {
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return;
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}
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// OK, set values
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time = tms + tm*60000 + th*3600000;
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}
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/// @brief Parses from SRT
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/// @param _text
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///
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void AssTime::ParseSRT (const wxString _text) {
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// Prepare
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wxString text = _text;
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text.Trim(false);
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text.Trim(true);
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long tempv;
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wxString temp;
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int ms,s,m,h;
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// Parse
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temp = text.Mid(0,2);
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temp.ToLong(&tempv);
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h = tempv;
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temp = text.Mid(3,2);
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temp.ToLong(&tempv);
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m = tempv;
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temp = text.Mid(6,2);
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temp.ToLong(&tempv);
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s = tempv;
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temp = text.Mid(9,3);
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temp.ToLong(&tempv);
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ms = tempv;
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// Set value
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time = ms + s*1000 + m*60000 + h*3600000;
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}
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/// @brief AssTime conversion to/from miliseconds
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/// @return
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///
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int AssTime::GetMS () const {
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if (!UseMSPrecision) return time/10*10;
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else return time;
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}
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/// @brief DOCME
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/// @param _ms
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///
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void AssTime::SetMS (int _ms) {
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time = _ms;
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}
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/// @brief ASS Formated
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/// @param msPrecision
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/// @return
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///
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wxString AssTime::GetASSFormated (bool msPrecision) {
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int h,m,s,ms;
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int _ms = time;
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// Centisecond precision
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msPrecision = msPrecision || UseMSPrecision;
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if (!msPrecision) _ms = _ms/10*10;
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// Reset
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h = m = s = ms = 0;
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if (_ms < 0) _ms = 0;
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// Hours
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while (_ms >= 3600000) {
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_ms -= 3600000;
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h++;
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}
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// Ass overflow
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if (h > 9) {
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h = 9;
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m = 59;
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s = 59;
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ms = 999;
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}
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// Minutes
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while (_ms >= 60000) {
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_ms -= 60000;
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m++;
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}
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// Seconds
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while (_ms >= 1000) {
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_ms -= 1000;
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s++;
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}
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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);
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}
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/// @brief SRT Formated
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/// @return
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///
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wxString AssTime::GetSRTFormated () {
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int h,m,s,ms;
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int _ms = time;
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// Centisecond precision
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if (!UseMSPrecision) _ms = _ms/10*10;
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// Reset
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h = m = s = ms = 0;
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if (_ms < 0) _ms = 0;
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// Hours
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while (_ms >= 3600000) {
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_ms -= 3600000;
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h++;
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}
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// Ass overflow
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if (h > 9) {
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h = 9;
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m = 59;
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s = 59;
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ms = 999;
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}
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// Minutes
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while (_ms >= 60000) {
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_ms -= 60000;
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m++;
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}
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// Seconds
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while (_ms >= 1000) {
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_ms -= 1000;
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s++;
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}
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ms = _ms;
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wxString result = wxString::Format(_T("%02i:%02i:%02i,%03i"),h,m,s,ms);
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return result;
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}
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/// @brief AssTime comparison
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/// @param t1
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/// @param t2
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/// @return
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///
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bool operator < (const AssTime &t1, const AssTime &t2) {
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return (t1.GetMS() < t2.GetMS());
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}
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/// @brief DOCME
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/// @param t1
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/// @param t2
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/// @return
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///
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bool operator > (const AssTime &t1, const AssTime &t2) {
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return (t1.GetMS() > t2.GetMS());
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}
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/// @brief DOCME
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/// @param t1
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/// @param t2
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/// @return
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///
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bool operator <= (const AssTime &t1, const AssTime &t2) {
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return (t1.GetMS() <= t2.GetMS());
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}
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/// @brief DOCME
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/// @param t1
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/// @param t2
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/// @return
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///
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bool operator >= (const AssTime &t1, const AssTime &t2) {
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return (t1.GetMS() >= t2.GetMS());
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}
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/// @brief DOCME
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/// @param t1
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/// @param t2
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/// @return
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///
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bool operator == (const AssTime &t1, const AssTime &t2) {
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return (t1.GetMS() == t2.GetMS());
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}
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/// @brief DOCME
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/// @param t1
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/// @param t2
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/// @return
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///
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bool operator != (const AssTime &t1, const AssTime &t2) {
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return (t1.GetMS() != t2.GetMS());
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}
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/// DOCME
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bool AssTime::UseMSPrecision = false;
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/// @brief Get
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/// @return
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///
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int AssTime::GetTimeHours() { return time / 3600000; }
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/// @brief DOCME
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/// @return
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///
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int AssTime::GetTimeMinutes() { return (time % 3600000)/60000; }
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/// @brief DOCME
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/// @return
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///
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int AssTime::GetTimeSeconds() { return (time % 60000)/1000; }
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/// @brief DOCME
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/// @return
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///
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int AssTime::GetTimeMiliseconds() { return (time % 1000); }
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/// @brief DOCME
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/// @return
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///
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int AssTime::GetTimeCentiseconds() { return (time % 1000)/10; }
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/// @brief Constructor
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/// @param separator
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/// @param numerator
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/// @param denominator
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/// @param dropframe
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///
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FractionalTime::FractionalTime (wxString separator, int numerator, int denominator, bool dropframe) {
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drop = dropframe;
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if (drop) {
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// no dropframe for any other framerates
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num = 30000;
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den = 1001;
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} else {
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num = numerator;
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den = denominator;
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}
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sep = separator;
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// fractions < 1 are not welcome here
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if ((num <= 0 || den <= 0) || (num < den))
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throw _T("FractionalTime: nonsensical enumerator or denominator");
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if (sep.IsEmpty())
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throw _T("FractionalTime: no separator specified");
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}
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/// @brief Destructor
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///
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FractionalTime::~FractionalTime () {
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sep.Clear();
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}
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/// @brief SMPTE text string to milliseconds conversion
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/// @param _text
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/// @return
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///
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int FractionalTime::ToMillisecs (wxString _text) {
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wxString text = _text;
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wxString re_str = _T("");
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text.Trim(false);
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text.Trim(true);
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long h=0,m=0,s=0,f=0;
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// hour minute second fraction
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re_str << _T("(\\d+)") << sep << _T("(\\d+)") << sep << _T("(\\d+)") << sep << _T("(\\d+)");
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wxRegEx re(re_str, wxRE_ADVANCED);
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if (!re.IsValid())
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throw _T("FractionalTime: regex failure");
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if (!re.Matches(text))
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return 0; // FIXME: throw here too?
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re.GetMatch(text,1).ToLong(&h);
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re.GetMatch(text,2).ToLong(&m);
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re.GetMatch(text,3).ToLong(&s);
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re.GetMatch(text,4).ToLong(&f);
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int msecs_f = 0;
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int fn = 0;
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// dropframe? do silly things
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if (drop) {
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fn += h * frames_per_period * 6;
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fn += (m % 10) * frames_per_period;
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if (m > 0) {
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fn += 1800;
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m--;
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fn += m * 1798; // two timestamps dropped per minute after the first
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fn += s * 30 + f - 2;
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}
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else { // minute is evenly divisible by 10, keep first two timestamps
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fn += s * 30;
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fn += f;
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}
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msecs_f = (fn * num) / den;
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}
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// no dropframe, may or may not sync with wallclock time
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// (see comment in FromMillisecs for an explanation of why it's done like this)
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else {
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int fps_approx = floor((double(num)/double(den))+0.5);
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fn += h * 3600 * fps_approx;
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fn += m * 60 * fps_approx;
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fn += s * fps_approx;
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fn += f;
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msecs_f = (fn * num) / den;
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}
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return msecs_f;
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}
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/// @brief SMPTE text string to AssTime conversion
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/// @param _text
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/// @return
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///
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AssTime FractionalTime::ToAssTime (wxString _text) {
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AssTime time;
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time.SetMS((int)ToMillisecs(_text));
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return time;
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}
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/// @brief AssTime to SMPTE text string conversion
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/// @param time
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/// @return
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///
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wxString FractionalTime::FromAssTime(AssTime time) {
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return FromMillisecs(time.GetMS());
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}
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/// @brief Milliseconds to SMPTE text string conversion
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/// @param msec
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///
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wxString FractionalTime::FromMillisecs(int64_t msec) {
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int h=0, m=0, s=0, f=0; // hours, minutes, seconds, fractions
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int fn = (msec*(int64_t)num) / (1000*den); // frame number
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// return 00:00:00:00
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if (msec <= 0)
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goto RETURN;
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// dropframe?
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if (drop) {
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fn += 2 * (fn / (30 * 60)) - 2 * (fn / (30 * 60 * 10));
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h = fn / (30 * 60 * 60);
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m = (fn / (30 * 60)) % 60;
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s = (fn / 30) % 60;
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f = fn % 30;
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}
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// no dropframe; h/m/s may or may not sync to wallclock time
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else {
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/*
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This is truly the dumbest shit. What we're trying to ensure here
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is that non-integer framerates are desynced from the wallclock
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time by a correct amount of time. For example, in the
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NTSC-without-dropframe case, 3600*num/den would be 107892
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(when truncated to int), which is quite a good approximation of
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how a long an hour is when counted in 30000/1001 frames per second.
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Unfortunately, that's not what we want, since frame numbers will
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still range from 00 to 29, meaning that we're really getting _30_
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frames per second and not 29.97 and the full hour will be off by
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almost 4 seconds (108000 frames versus 107892).
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DEATH TO SMPTE
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*/
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int fps_approx = floor((double(num)/double(den))+0.5);
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int frames_per_h = 3600*fps_approx;
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int frames_per_m = 60*fps_approx;
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int frames_per_s = fps_approx;
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while (fn >= frames_per_h) {
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h++; fn -= frames_per_h;
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}
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while (fn >= frames_per_m) {
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m++; fn -= frames_per_m;
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}
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while (fn >= frames_per_s) {
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s++; fn -= frames_per_s;
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}
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f = fn;
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}
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RETURN:
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return wxString::Format(_T("%02i") + sep + _T("%02i") + sep + _T("%02i") + sep + _T("%02i"),h,m,s,f);
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}
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