Aegisub/aegisub/keyframe.cpp
Alysson Souza 3518f381a7 Added support for reading keyframes from xvid pass files
Originally committed to SVN as r1535.
2007-08-26 00:00:37 +00:00

150 lines
4.6 KiB
C++

// Copyright (c) 2007, Alysson Souza e Silva
// 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 "video_context.h"
#include "keyframe.h"
#include "text_file_reader.h"
#include "text_file_writer.h"
#include "options.h"
#include "vfr.h"
//////////////////
// Load Keyframes
void KeyFrameFile::Load(wxString filename) {
// Load
try {
// Open file
wxArrayInt keyFrames;
keyFrames.Empty();
TextFileReader file(filename,_T("ASCII"));
wxString cur = file.ReadLineFromFile();
// Detect type
if (cur == _T("# keyframe format v1")) { OpenAegiKeyFrames(file, keyFrames); }
else if (cur.StartsWith(_T("# XviD 2pass stat file"))) { OpenXviDKeyFrames(file, keyFrames); }
else { throw(_T("Invalid keyframes file.")); }
// Set keyframes
VideoContext::Get()->SetOverKeyFrames(keyFrames);
VideoContext::Get()->SetKeyFramesName(filename);
// Add to recent
Options.AddToRecentList(filename,_T("Recent keyframes"));
}
// Fail
catch (const wchar_t *error) {
wxString err(error);
wxMessageBox(err, _T("Error opening keyframes file"), wxOK | wxICON_ERROR, NULL);
}
catch (...) {
wxMessageBox(_T("Unknown error"), _T("Error opening keyframes file"), wxOK | wxICON_ERROR, NULL);
}
}
//////////////////
// Save Keyframes
void KeyFrameFile::Save(wxString filename) {
// Get keyframes
wxArrayInt keyFrames = VideoContext::Get()->GetKeyFrames();
// Write header
TextFileWriter file(filename,_T("ASCII"));
file.WriteLineToFile(_T("# keyframe format v1"));
file.WriteLineToFile(wxString::Format(_T("fps %f"),VideoContext::Get()->GetFPS()));
// Write keyframes
for (unsigned int i=0;i<keyFrames.Count();i++) {
file.WriteLineToFile(wxString::Format(_T("%i"),keyFrames[i]));
}
// Add to recent
Options.AddToRecentList(filename,_T("Recent keyframes"));
}
//////////////////////////
// Aegisub keyframes file
void KeyFrameFile::OpenAegiKeyFrames(TextFileReader& file, wxArrayInt& keyFrames)
{
double fps;
wxString cur = file.ReadLineFromFile();
// Read header
if (cur.Left(4) != _T("fps ")) throw _T("Invalid keyframes file, missing FPS.");
cur = cur.Mid(4);
cur.ToDouble(&fps);
if (fps == 0.0) throw _T("Invalid FPS.");
// Set FPS
if (!VideoContext::Get()->IsLoaded()) {
VideoContext::Get()->SetFPS(fps);
VFR_Input.SetCFR(fps);
if (!VFR_Output.IsLoaded()) VFR_Output.SetCFR(fps);
}
// Read lines
while (file.HasMoreLines()) {
cur = file.ReadLineFromFile();
if (!cur.IsEmpty() && cur.StartsWith(_T("#")) && cur.IsNumber()) {
long temp;
cur.ToLong(&temp);
keyFrames.Add(temp);
}
}
}
///////////////////
// XviD stats file
void KeyFrameFile::OpenXviDKeyFrames(TextFileReader& file, wxArrayInt& keyFrames)
{
wxString cur = file.ReadLineFromFile();
int count = 0;
// Read lines
while (file.HasMoreLines()) {
cur = file.ReadLineFromFile();
wxString teste = cur.Left(1);
if (cur.StartsWith(_T("i"))) {
keyFrames.Add(count);
}
if (cur.StartsWith(_T("i")) || cur.StartsWith(_T("p")) || cur.StartsWith(_T("b"))) {
count++;
}
}
}