Aegisub/aegisub/src/subtitle_format.h
Thomas Goyne acba2c6b63 Rewrite VFR handling in Aegisub.
Kill vfr.h and vfr.cpp and use the libaegisub versions of them instead.

Rather than the globals VFR_Input and VFR_Output, everything related to
frame rate is now part of the video context. Most things which used to
use VFR_Output now call VideoContext::TimeAtFrame etc.; video providers,
rather than modifying VFR_Input directly, now have getters for their
frame rates which VideoContext calls. Read-only public access to
VFR_Input and VFR_Output are still provided (hopefully temporarily) for
a few things which were awkward to do through VideoContext.

The Avisynth provider now might correctly handle VFR MKVs which can be
opened with DirectShowSource but not DSS2.

Rework keyframe handling as well, so that it continues to match the vfr
handling in design and implementation.

Originally committed to SVN as r4662.
2010-07-08 04:29:04 +00:00

150 lines
3.9 KiB
C++

// 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 Project http://www.aegisub.org/
//
// $Id$
/// @file subtitle_format.h
/// @see subtitle_format.cpp
/// @ingroup subtitle_io
///
#pragma once
#ifndef AGI_PRE
#include <list>
#include <wx/arrstr.h>
#include <wx/string.h>
#endif
#include <libaegisub/exception.h>
class AssFile;
class AssEntry;
/// DOCME
/// @class SubtitleFormat
/// @brief DOCME
///
/// DOCME
class SubtitleFormat {
/// DOCME
bool isCopy;
/// DOCME
AssFile *assFile;
void Register();
void Remove();
/// DOCME
static std::list<SubtitleFormat*> formats;
/// DOCME
static bool loaded;
protected:
/// DOCME
struct FPSRational {
/// DOCME
int num;
/// DOCME
int den;
/// DOCME
bool smpte_dropframe;
};
/// DOCME
std::list<AssEntry*> *Line;
void CreateCopy();
void ClearCopy();
void SortLines();
void ConvertTags(int format,const wxString &lineEnd,bool mergeLineBreaks=true);
//void Merge(bool identical,bool overlaps,bool stripComments,bool stripNonDialogue);
void StripComments();
void StripNonDialogue();
void RecombineOverlaps();
void MergeIdentical();
void Clear();
void LoadDefault(bool defline=true);
/// @brief DOCME
/// @return
///
AssFile *GetAssFile() { return assFile; }
void AddLine(wxString data,wxString group,int &version,wxString *outgroup=NULL);
FPSRational AskForFPS(bool showSMPTE=false);
virtual wxString GetName()=0;
virtual wxArrayString GetReadWildcards();
virtual wxArrayString GetWriteWildcards();
public:
SubtitleFormat();
virtual ~SubtitleFormat();
void SetTarget(AssFile *file);
static wxString GetWildcards(int mode);
/// @brief DOCME
/// @param filename
/// @return
///
virtual bool CanReadFile(wxString filename) { return false; };
/// @brief DOCME
/// @param filename
/// @return
///
virtual bool CanWriteFile(wxString filename) { return false; };
/// @brief DOCME
/// @param filename
/// @param forceEncoding
///
virtual void ReadFile(wxString filename,wxString forceEncoding=_T("")) { };
/// @brief DOCME
/// @param filename
/// @param encoding
///
virtual void WriteFile(wxString filename,wxString encoding=_T("")) { };
static SubtitleFormat *GetReader(wxString filename);
static SubtitleFormat *GetWriter(wxString filename);
static void LoadFormats();
static void DestroyFormats();
};
DEFINE_SIMPLE_EXCEPTION(SubtitleFormatParseError, agi::InvalidInputException, "subtitle_io/parse/generic")