private static List <LineInfo> ParseSubtitleInVideoFile(Settings settings, string filename, Dictionary <String, String> properties)
{
StreamInfo subtitleStreamInfo = UtilsVideo.ChooseStreamInfo(filename, properties, StreamInfo.StreamType.ST_SUBTITLE);
// new subtitle file
String videoFileHash = UtilsCommon.GetDateSizeChecksum(filename);
String newSubtitleFileName = videoFileHash + "_" + subtitleStreamInfo.StreamIndex + GetExtensionByStreamInfo(subtitleStreamInfo);
string newSubtitleFilePath = InstanceSettings.temporaryFilesPath + newSubtitleFileName;
// do not extract again when file was already extracted once
if (!File.Exists(newSubtitleFilePath))
{
UtilsVideo.ExtractStream(filename, subtitleStreamInfo, newSubtitleFilePath);
}
return(ParseSubtitle(settings, newSubtitleFilePath, properties));
}