SubtitleEdit/libse/SubtitleFormats/TSB4.cs

92 lines
3.1 KiB
C#

using System.Collections.Generic;
using System.Text;
namespace Nikse.SubtitleEdit.Core.SubtitleFormats
{
public class TSB4 : SubtitleFormat
{
public override string Extension
{
get { return ".sub"; }
}
public override string Name
{
get { return "TSB4"; }
}
public override bool IsTimeBased
{
get { return true; }
}
public override bool IsMine(List<string> lines, string fileName)
{
var subtitle = new Subtitle();
LoadSubtitle(subtitle, lines, fileName);
return subtitle.Paragraphs.Count > this._errorCount;
}
public override string ToText(Subtitle subtitle, string title)
{
return "Not supported!";
}
public override void LoadSubtitle(Subtitle subtitle, List<string> lines, string fileName)
{
_errorCount = 0;
subtitle.Paragraphs.Clear();
if (string.IsNullOrEmpty(fileName))
{
return;
}
byte[] array;
try
{
array = FileUtil.ReadAllBytesShared(fileName);
}
catch
{
_errorCount++;
return;
}
if (array.Length < 100 || array[0] != 84 || array[1] != 83 || array[2] != 66 || array[3] != 52)
{
return;
}
for (int i = 0; i < array.Length - 20; i++)
{
if (array[i] == 84 && array[i + 1] == 73 && array[i + 2] == 84 && array[i + 3] == 76 && array[i + 8] == 84 && array[i + 9] == 73 && array[i + 10] == 77 && array[i + 11] == 69) // TITL + TIME
{
int endOfText = array[i + 4];
int start = array[i + 16] + array[i + 17] * 256;
if (array[i + 18] != 32)
start += array[i + 18] * 256 * 256;
int end = array[i + 20] + array[i + 21] * 256;
if (array[i + 22] != 32)
end += array[i + 22] * 256 * 256;
int textStart = i;
while (textStart < i + endOfText && !(array[textStart] == 0x4C && array[textStart + 1] == 0x49 && array[textStart + 2] == 0x4E && array[textStart + 3] == 0x45)) // LINE
{
textStart++;
}
int length = i + endOfText - textStart - 2;
textStart += 8;
string text = Encoding.Default.GetString(array, textStart, length);
// text = Encoding.Default.GetString(array, i + 53, endOfText - 47);
text = text.Trim('\0').Replace("\0", " ").Trim();
var item = new Paragraph(text, FramesToMilliseconds(start), FramesToMilliseconds(end));
subtitle.Paragraphs.Add(item);
i += endOfText + 5;
}
}
subtitle.RemoveEmptyLines();
subtitle.Renumber();
}
}
}