private string UpdateFilenameExtension(string filename, SubtitleType type)
{
SubtitleTypeInfo typeInfo = Subtitles.GetAvailableType(type);
string newExtensionDotted = "." + typeInfo.PreferredExtension;
int index = -1;
string extensionDotted = "." + GetFilenameExtension(filename, out index);
if (extensionDotted == newExtensionDotted) //filename already has the correct extension
{
return(filename);
}
else if (index == -1) //filename doesn't have an extension, appending
{
return(filename + newExtensionDotted);
}
else if (Subtitles.IsSubtitleExtension(extensionDotted)) //filename's extension is a subtitle extension
{
int dotIndex = index - 1;
return(filename.Substring(0, dotIndex) + newExtensionDotted);
}
else //filename's extension is not a subtitle extension
{
return(filename + newExtensionDotted);
}
}
private string GetSubtitleFormat(SubtitleType type)
{
if (type == SubtitleType.Unknown)
{
return(null);
}
SubtitleTypeInfo typeInfo = Subtitles.GetAvailableType(type);
return(typeInfo.Name);
}
private string AddExtensionIfNeeded(string filename, SubtitleType type)
{
int index = 0;
string extension = GetFilenameExtension(filename, out index);
SubtitleTypeInfo typeInfo = Subtitles.GetAvailableType(type);
if (typeInfo.HasExtension(extension))
{
return(filename);
}
else
{
return(filename + "." + typeInfo.PreferredExtension);
}
}
