Aegisub/aegisub/src/subtitle_format_transtation.cpp
Karl Blomster ffa5a2021d - Reworked the SMPTE timecode handling with Plorkyeran's help. It does now handle dropframe timecodes as well; the ms->SMPTE handling has been tested and seems reasonably correct, while the reverse conversion remains untested and unused. The Adobe Encore export filter will now use dropframe timecodes properly (previously it would play pretend with wallclock hours/minutes/seconds and incorrect frame numbers).
- Changed the SubtitleFormat::AskForFPS dialog box; removed the "PAL/NTSC only" choice and added a "show SMPTE dropframe" parameter instead. Also added 50fps as a choice.

- While I was at it, reworked the TranStation export filter so it actually looks ahead to see if the next line will overlap with the current, and if so, move the end time of the current line backwards one frame, which fixes #767

Originally committed to SVN as r2920.
2009-05-13 20:24:21 +00:00

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No EOL
5.1 KiB
C++

// Copyright (c) 2007, 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
//
///////////
// Headers
#include "config.h"
#include "ass_dialogue.h"
#include "ass_file.h"
#include "ass_style.h"
#include "ass_time.h"
#include "subtitle_format_transtation.h"
#include "text_file_writer.h"
#include <stdio.h>
////////
// Name
wxString TranStationSubtitleFormat::GetName() {
return _T("TranStation");
}
/////////////
// Wildcards
wxArrayString TranStationSubtitleFormat::GetWriteWildcards() {
wxArrayString formats;
formats.Add(_T("transtation.txt"));
return formats;
}
///////////////////
// Can write file?
bool TranStationSubtitleFormat::CanWriteFile(wxString filename) {
return (filename.Right(16).Lower() == _T(".transtation.txt"));
}
//////////////
// Write file
void TranStationSubtitleFormat::WriteFile(wxString _filename,wxString encoding) {
// Get FPS
FPSRational fps_rat = AskForFPS(true);
if (fps_rat.num <= 0 || fps_rat.den <= 0) return;
// Open file
TextFileWriter file(_filename,encoding);
// Convert to TranStation
CreateCopy();
SortLines();
StripComments();
RecombineOverlaps();
MergeIdentical();
// Write lines
using std::list;
AssDialogue *current = NULL;
AssDialogue *next = NULL;
for (list<AssEntry*>::iterator cur=Line->begin();cur!=Line->end();cur++) {
if (next)
current = next;
next = AssEntry::GetAsDialogue(*cur);
if (current && !current->Comment) {
// Write text
file.WriteLineToFile(ConvertLine(current,&fps_rat,(next && !next->Comment) ? next->Start.GetMS() : -1));
file.WriteLineToFile(_T(""));
}
}
// flush last line
if (next && !next->Comment)
file.WriteLineToFile(ConvertLine(next,&fps_rat,-1));
// Every file must end with this line
file.WriteLineToFile(_T("SUB["));
// Clean up
ClearCopy();
}
wxString TranStationSubtitleFormat::ConvertLine(AssDialogue *current, FPSRational *fps_rat, int nextl_start) {
// Get line data
AssStyle *style = GetAssFile()->GetStyle(current->Style);
int valign = 0;
wxChar *halign = _T(" "); // default is centered
wxChar *type = _T("N"); // no special style
if (style) {
if (style->alignment >= 4) valign = 4;
if (style->alignment >= 7) valign = 9;
if (style->alignment == 1 || style->alignment == 4 || style->alignment == 7) halign = _T("L");
if (style->alignment == 3 || style->alignment == 6 || style->alignment == 9) halign = _T("R");
if (style->italic) type = _T("I");
}
// Hack: If an italics-tag (\i1) appears anywhere in the line,
// make it all italics
if (current->Text.Find(_T("\\i1")) != wxNOT_FOUND)type = _T("I");
// Write header
AssTime start = current->Start;
AssTime end = current->End;
// Subtract one frame if the end time of the current line is equal to the
// start of next one, since the end timestamp is inclusive and the lines
// would overlap if left as is.
if (nextl_start > 0 && end.GetMS() == nextl_start)
end.SetMS(end.GetMS() - ((1000*fps_rat->den)/fps_rat->num));
FractionalTime ft(_T(":"), fps_rat->num, fps_rat->den, fps_rat->smpte_dropframe);
wxString header = wxString::Format(_T("SUB[%i%s%s "),valign,halign,type) + ft.FromAssTime(start) + _T(">") + ft.FromAssTime(end) + _T("]\r\n");
// Process text
wxString lineEnd = _T("\r\n");
current->StripTags();
current->Text.Replace(_T("\\h"),_T(" "),true);
current->Text.Replace(_T("\\n"),lineEnd,true);
current->Text.Replace(_T("\\N"),lineEnd,true);
while (current->Text.Replace(lineEnd+lineEnd,lineEnd,true));
return header + current->Text;
}