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Aegisub/aegisub/subtitle_format.cpp

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// Copyright (c) 2006, 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 <wx/intl.h>
#include <wx/choicdlg.h>
#include "subtitle_format.h"
#include "subtitle_format_ass.h"
#include "subtitle_format_srt.h"
#include "subtitle_format_txt.h"
#include "subtitle_format_ttxt.h"
#include "subtitle_format_mkv.h"
#include "subtitle_format_microdvd.h"
#include "subtitle_format_encore.h"
#include "subtitle_format_transtation.h"
#include "subtitle_format_dvd.h"
#include "ass_file.h"
#include "vfr.h"
///////////////
// Constructor
SubtitleFormat::SubtitleFormat() {
Line = NULL;
Register();
isCopy = false;
}
//////////////
// Destructor
SubtitleFormat::~SubtitleFormat () {
Remove();
}
////////
// List
std::list<SubtitleFormat*> SubtitleFormat::formats;
bool SubtitleFormat::loaded = false;
//////////////
// Set target
void SubtitleFormat::SetTarget(AssFile *file) {
ClearCopy();
if (!file) Line = NULL;
else Line = &file->Line;
assFile = file;
}
///////////////
// Create copy
void SubtitleFormat::CreateCopy() {
SetTarget(new AssFile(*assFile));
isCopy = true;
}
//////////////
// Clear copy
void SubtitleFormat::ClearCopy() {
if (isCopy) {
delete assFile;
assFile = NULL;
isCopy = false;
}
}
///////////////////
// Clear subtitles
void SubtitleFormat::Clear() {
assFile->Clear();
}
////////////////
// Load default
void SubtitleFormat::LoadDefault(bool defline) {
assFile->LoadDefault(defline);
}
////////////
// Add line
int SubtitleFormat::AddLine(wxString data,wxString group,int lasttime,int &version,wxString *outgroup) {
return assFile->AddLine(data,group,lasttime,version,outgroup);
}
///////////////
// Add formats
void SubtitleFormat::LoadFormats () {
if (!loaded) {
new ASSSubtitleFormat();
new SRTSubtitleFormat();
new TXTSubtitleFormat();
new TTXTSubtitleFormat();
new MicroDVDSubtitleFormat();
new MKVSubtitleFormat();
new EncoreSubtitleFormat();
new TranStationSubtitleFormat();
#ifdef __WXDEBUG__
new DVDSubtitleFormat();
#endif
}
loaded = true;
}
///////////////////
// Destroy formats
void SubtitleFormat::DestroyFormats () {
std::list<SubtitleFormat*>::iterator cur;
for (cur=formats.begin();cur!=formats.end();cur = formats.begin()) {
delete *cur;
}
formats.clear();
}
/////////////////////////////
// Get an appropriate reader
SubtitleFormat *SubtitleFormat::GetReader(wxString filename) {
LoadFormats();
std::list<SubtitleFormat*>::iterator cur;
SubtitleFormat *reader;
for (cur=formats.begin();cur!=formats.end();cur++) {
reader = *cur;
if (reader->CanReadFile(filename)) return reader;
}
return NULL;
}
/////////////////////////////
// Get an appropriate writer
SubtitleFormat *SubtitleFormat::GetWriter(wxString filename) {
LoadFormats();
std::list<SubtitleFormat*>::iterator cur;
SubtitleFormat *writer;
for (cur=formats.begin();cur!=formats.end();cur++) {
writer = *cur;
if (writer->CanWriteFile(filename)) return writer;
}
return NULL;
}
////////////
// Register
void SubtitleFormat::Register() {
std::list<SubtitleFormat*>::iterator cur;
for (cur=formats.begin();cur!=formats.end();cur++) {
if (*cur == this) return;
}
formats.push_back(this);
}
//////////
// Remove
void SubtitleFormat::Remove() {
std::list<SubtitleFormat*>::iterator cur;
for (cur=formats.begin();cur!=formats.end();cur++) {
if (*cur == this) {
formats.erase(cur);
return;
}
}
}
//////////////////////
// Get read wildcards
wxArrayString SubtitleFormat::GetReadWildcards() {
return wxArrayString();
}
///////////////////////
// Get write wildcards
wxArrayString SubtitleFormat::GetWriteWildcards() {
return wxArrayString();
}
/////////////////////
// Get wildcard list
wxString SubtitleFormat::GetWildcards(int mode) {
// Ensure it's loaded
LoadFormats();
// Variables
wxArrayString all;
wxArrayString cur;
wxString wild;
wxString final;
wxString temp1;
wxString temp2;
// For each format
std::list<SubtitleFormat*>::iterator curIter;
SubtitleFormat *format;
for (curIter=formats.begin();curIter!=formats.end();curIter++) {
// Get list
format = *curIter;
if (mode == 0) cur = format->GetReadWildcards();
else if (mode == 1) cur = format->GetWriteWildcards();
temp1.Clear();
temp2.Clear();
// Has wildcards
if (cur.Count()) {
// Process entries
for (unsigned int i=0;i<cur.Count();i++) {
wild = _T("*.") + cur[i];
all.Add(wild);
temp1 += wild + _T(",");
temp2 += wild + _T(";");
}
// Assemble final name
final += format->GetName() + _T(" (") + temp1.Left(temp1.Length()-1) + _T(")|") + temp2.Left(temp2.Length()-1) + _T("|");
}
}
// Add "all formats" list
temp1.Clear();
temp2.Clear();
for (unsigned int i=0;i<all.Count();i++) {
temp1 += all[i] + _T(",");
temp2 += all[i] + _T(";");
}
final = wxString(_("All Supported Formats")) + _T(" (") + temp1.Left(temp1.Length()-1) + _T(")|") + temp2.Left(temp2.Length()-1) + _T("|") + final.Left(final.Length()-1);
// Return final list
return final;
}
/////////////////////////////////
// Ask the user to enter the FPS
double SubtitleFormat::AskForFPS(bool palNtscOnly) {
wxArrayString choices;
// Video FPS
bool vidLoaded = !palNtscOnly && VFR_Output.IsLoaded();
if (vidLoaded) {
wxString vidFPS;
if (VFR_Output.GetFrameRateType() == VFR) vidFPS = _T("VFR");
else vidFPS = wxString::Format(_T("%.3f"),VFR_Output.GetAverage());
choices.Add(wxString::Format(_T("From video (%s)"),vidFPS.c_str()));
}
// Standard FPS values
if (!palNtscOnly) {
choices.Add(_("15.000 FPS"));
choices.Add(_("23.976 FPS (Decimated NTSC)"));
choices.Add(_("24.000 FPS (FILM)"));
}
choices.Add(_("25.000 FPS (PAL)"));
choices.Add(_("29.970 FPS (NTSC)"));
if (!palNtscOnly) {
choices.Add(_("30.000 FPS"));
choices.Add(_("59.940 FPS (NTSC x2)"));
choices.Add(_("60.000 FPS"));
choices.Add(_("119.880 FPS (NTSC x4)"));
choices.Add(_("120.000 FPS"));
}
// Ask
int choice = wxGetSingleChoiceIndex(_("Please choose the appropriate FPS for the subtitles:"),_("FPS"),choices);
if (choice == -1) return 0.0;
// PAL/NTSC choice
if (palNtscOnly) {
if (choice == 0) return 25.0;
else return 30.0 / 1.001;
}
// Get FPS from choice
if (vidLoaded) choice--;
switch (choice) {
case -1: return -1.0; break; // VIDEO
case 0: return 15.0; break;
case 1: return 24.0 / 1.001; break;
case 2: return 24.0; break;
case 3: return 25.0; break;
case 4: return 30.0 / 1.001; break;
case 5: return 30.0; break;
case 6: return 60.0 / 1.001; break;
case 7: return 60.0; break;
case 8: return 120.0 / 1.001; break;
case 9: return 120.0; break;
}
// fubar
return 0.0;
}
//////////////
// Sort lines
void SubtitleFormat::SortLines() {
Line->sort(LessByPointedToValue<AssEntry>());
}
////////////////
// Convert tags
void SubtitleFormat::ConvertTags(int format,wxString lineEnd) {
using std::list;
list<AssEntry*>::iterator next;
for (list<AssEntry*>::iterator cur=Line->begin();cur!=Line->end();cur++) {
AssDialogue *current = AssEntry::GetAsDialogue(*cur);
if (current) {
// Strip tags
if (format == 1) current->StripTags();
else if (format == 2) current->ConvertTagsToSRT();
// Replace line breaks
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));
}
}
}
////////////////////////////
// Remove all comment lines
void SubtitleFormat::StripComments() {
using std::list;
list<AssEntry*>::iterator next;
for (list<AssEntry*>::iterator cur = Line->begin(); cur != Line->end(); cur = next) {
next = cur;
next++;
AssDialogue *dlg = AssEntry::GetAsDialogue(*cur);
if (dlg && (dlg->Comment || dlg->Text.IsEmpty())) {
delete *cur;
Line->erase(cur);
}
}
}
/////////////////////////////////
// Remove all non-dialogue lines
void SubtitleFormat::StripNonDialogue() {
using std::list;
list<AssEntry*>::iterator next;
for (list<AssEntry*>::iterator cur = Line->begin(); cur != Line->end(); cur = next) {
next = cur;
next++;
if (!AssEntry::GetAsDialogue(*cur)) {
delete *cur;
Line->erase(cur);
}
}
}
///////////////////////////////////////////
// Helper function for RecombineOverlaps()
static void InsertLineSortedIntoList(std::list<AssEntry*> &list, std::list<AssEntry*>::iterator next, AssDialogue *newdlg) {
std::list<AssEntry*>::iterator insertpos = next;
bool inserted = false;
while (insertpos != list.end()) {
AssDialogue *candidate = AssEntry::GetAsDialogue(*insertpos);
if (candidate && candidate->Start >= newdlg->Start) {
list.insert(insertpos, newdlg);
inserted = true;
break;
}
insertpos++;
}
if (!inserted) {
list.push_back(newdlg);
}
}
///////////////////////////////////////////////////////////
// Split and merge lines so there are no overlapping lines
// http://malakith.net/aegiwiki/Split-merge_algorithm_for_converting_to_simple_subtitle_formats
void SubtitleFormat::RecombineOverlaps() {
using std::list;
list<AssEntry*>::iterator next;
for (list<AssEntry*>::iterator cur = Line->begin(); cur != Line->end(); cur = next) {
next = cur;
next++;
if (next == Line->end()) break;
AssDialogue *prevdlg = AssEntry::GetAsDialogue(*cur);
AssDialogue *curdlg = AssEntry::GetAsDialogue(*next);
if (curdlg && prevdlg && prevdlg->End > curdlg->Start) {
// Use names like in the algorithm description and prepare for erasing
// old dialogues from the list
list<AssEntry*>::iterator prev = cur;
cur = next;
next++;
// std::list::insert() inserts items before the given iterator, so
// we need 'next' for inserting. 'prev' and 'cur' can safely be erased
// from the list now.
Line->erase(prev);
Line->erase(cur);
//Is there an A part before the overlap?
if (curdlg->Start > prevdlg->Start) {
// Produce new entry with correct values
AssDialogue *newdlg = AssEntry::GetAsDialogue(prevdlg->Clone());
newdlg->Start = prevdlg->Start;
newdlg->End = curdlg->Start;
newdlg->Text = prevdlg->Text;
InsertLineSortedIntoList(*Line, next, newdlg);
}
// Overlapping A+B part
{
AssDialogue *newdlg = AssEntry::GetAsDialogue(prevdlg->Clone());
newdlg->Start = curdlg->Start;
newdlg->End = (prevdlg->End < curdlg->End) ? prevdlg->End : curdlg->End;
// Put an ASS format hard linewrap between lines
newdlg->Text = curdlg->Text + _T("\\N") + prevdlg->Text;
InsertLineSortedIntoList(*Line, next, newdlg);
}
// Is there an A part after the overlap?
if (prevdlg->End > curdlg->End) {
// Produce new entry with correct values
AssDialogue *newdlg = AssEntry::GetAsDialogue(prevdlg->Clone());
newdlg->Start = curdlg->End;
newdlg->End = prevdlg->End;
newdlg->Text = prevdlg->Text;
InsertLineSortedIntoList(*Line, next, newdlg);
}
// Is there a B part after the overlap?
if (curdlg->End > prevdlg->End) {
// Produce new entry with correct values
AssDialogue *newdlg = AssEntry::GetAsDialogue(prevdlg->Clone());
newdlg->Start = prevdlg->End;
newdlg->End = curdlg->End;
newdlg->Text = curdlg->Text;
InsertLineSortedIntoList(*Line, next, newdlg);
}
next--;
}
}
}
////////////////////////////////////////////////
// Merge identical lines that follow each other
void SubtitleFormat::MergeIdentical() {
using std::list;
list<AssEntry*>::iterator next;
for (list<AssEntry*>::iterator cur = Line->begin(); cur != Line->end(); cur = next) {
next = cur;
next++;
if (next == Line->end()) break;
AssDialogue *curdlg = AssEntry::GetAsDialogue(*cur);
AssDialogue *nextdlg = AssEntry::GetAsDialogue(*next);
if (curdlg && nextdlg && curdlg->Text == nextdlg->Text) {
// Merge timing
nextdlg->Start = (nextdlg->Start < curdlg->Start ? nextdlg->Start : curdlg->Start);
nextdlg->End = (nextdlg->End > curdlg->End ? nextdlg->End : curdlg->End);
// Remove duplicate line
delete *cur;
Line->erase(cur);
}
}
}
////////////////////////////////////////////
// Merge identical and/or overlapping lines
/*void SubtitleFormat::Merge(bool identical,bool overlaps,bool stripComments,bool stripNonDialogue) {
using std::list;
list<AssEntry*>::iterator next;
list<AssEntry*>::iterator prev = Line->end();
AssDialogue *previous = NULL;
// Loop through each line
for (list<AssEntry*>::iterator cur=Line->begin();cur!=Line->end();cur=next) {
next = cur;
next++;
// Dialogue line
AssDialogue *current = AssEntry::GetAsDialogue(*cur);
if (current) {
// Strip comments and empty lines
if ((current->Comment && stripComments) || current->Text.IsEmpty()) {
delete *cur;
Line->erase(cur);
}
// Proper line
else {
if (previous != NULL) {
// Check for duplication
if (identical && previous->Text == current->Text) {
if (abs(current->Start.GetMS() - previous->End.GetMS()) < 20) {
current->Start = (current->Start < previous->Start ? current->Start : previous->Start);
current->End = (current->End > previous->End ? current->End : previous->End);
delete *prev;
Line->erase(prev);
}
}
// Check for overlap
//
if (overlaps && previous->End.GetMS() > current->Start.GetMS()) {
// Grab the data
int prev_s = previous->Start.GetMS();
int prev_e = previous->End.GetMS();
int cur_s = current->Start.GetMS();
int cur_e = current->End.GetMS();
wxString prev_t = previous->Text;
wxString cur_t = current->Text;
// Make sure cur points to the line before those we're working with
--cur;
// Remove 'cur' and 'prev' from list
Line->erase(prev);
Line->erase(prev);
// Now make sure that 'cur' points to the item after the old 'current'
++cur;
// A-only part
if (prev_s < cur_s) {
// Actually lines generated from this one never move
// So we can assume it can just be inserted at cur
AssDialogue *part = AssEntry::GetAsDialogue(previous->Clone());
part->End.SetMS(prev_s);
// Nothing to do about start-time or text, they are already correct
// Insert into list
Line->insert(cur, part);
// 'cur' now points to one past newly inserted item
}
// A+B part
{
// These lines never move either, so just insert
AssDialogue *part = AssEntry::GetAsDialogue(current->Clone());
// Fix values
part->Start.SetMS(cur_s);
part->End.SetMS(prev_e);
// Inserting an ASS hard linebreak
part->Text = cur_t + _T("\\N") + prev_t;
// Insert into list
Line->insert(cur, part);
// 'cur' now points to one past newly inserted item
}
// B-only part
if (cur_e > prev_e) {
// We need to seek for the right position here
AssDialogue *part = AssEntry::GetAsDialogue(current->Clone());
// Fix values
part->Start.SetMS(prev_e);
part->End.SetMS(cur_e);
part->Text = cur_t;
list<AssEntry*>::iterator newpos = cur;
// Insert into list
// Make sure 'cur' never moves during this
if (newpos == Line->end()) {
Line->push_back(part);
}
else {
while (newpos != Line->end()) {
AssDialogue *newline = AssEntry::GetAsDialogue(*newpos);
if (newline && part->Start.GetMS() <= newline->Start.GetMS()) {
// Suitable position
Line->insert(newpos, part);
break;
}
++newpos;
}
}
}
// Now 'cur' has moved around a lot so make sure everything is correct
// 'cur' currently points to one past the last inserted item
// It should really point to the last inserted item (that wasn't
// inserted at a later position) so we need to move it one back.
// In fact, 'next' should have that value.
next = cur--;
// 'prev' should already be correct
// And update the rest too
previous = AssEntry::GetAsDialogue(*prev);
current = AssEntry::GetAsDialogue(*cur);
}
}
// Set as previous
prev = cur;
previous = current;
}
}
// Other line, delete it
else {
if (stripNonDialogue) {
delete *cur;
Line->erase(cur);
}
}
}
}*/
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