public static SrtSubtitle ConvertDFXPToSubrip(string dfxpSubtitle)
{
var subtitle = new SrtSubtitle();
dfxpSubtitle = dfxpSubtitle.Replace("<tt:br/>", "breakline;;");
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml(dfxpSubtitle);
foreach (XmlElement div in xmlDoc["tt:tt"]["tt:body"].Cast <XmlElement>().Where(x => x.Name == "tt:div"))
{
foreach (XmlElement p in div)
{
var srtItem = new SrtSubtitleItem();
srtItem.Start = DateTime.Parse(p.GetAttribute("begin"));
srtItem.End = DateTime.Parse(p.GetAttribute("end"));
string text = p.InnerText.Replace("breakline;;", "\r\n");
srtItem.Text.AppendLine(text);
srtItem.Text.Append("\r\n");
subtitle.Items.Add(srtItem);
}
}
return(subtitle);
}
void DownloadAndConvertSubtitle(SubtitleTrack subtitle)
{
string languageCode = subtitle.LanguageCode;
string id = subtitle.Id;
Logger.Verbose($"Downloading {languageCode}_{id} subtitles");
string outputFile = Path.Join(Constants.TEMP_FOLDER, string.Join("_", Filename, languageCode, id, Config.SubtitleFormat));
if (Config.Overwrite && File.Exists(outputFile))
{
File.Delete(outputFile);
}
else if (!Config.Overwrite && File.Exists(outputFile))
{
return;
}
List <string> subtitleSegments = new List <string>(new string[subtitle.Segments]);
Parallel.For(0, subtitle.Segments, (i) =>
{
subtitleSegments[i] = Requests.Request(subtitle.Urls[i], new Dictionary <string, string>()
{
["keep-alive"] = "timeout=10, max=1000"
});
});
string subtitleText = string.Join("\r\n", subtitleSegments);
SrtSubtitle srtSubtitle = null;
if (subtitle.GetTrackType() == "webvtt")
{
srtSubtitle = SubtitleUtils.ConvertVTTToSubrip(string.Join("\r\n", subtitleSegments));
}
else if (subtitle.GetTrackType() == "dfxp")
{
srtSubtitle = SubtitleUtils.ConvertDFXPToSubrip(subtitleText);
}
if (srtSubtitle != null)
{
File.WriteAllText(outputFile, srtSubtitle.ToString());
}
}
public static SrtSubtitle ConvertVTTToSubrip(string webvttSubtitle)
{
var subtitle = new SrtSubtitle();
StringReader reader = new StringReader(webvttSubtitle);
double timeOffset = 0.0;
int lineNumber = 1;
string line;
while ((line = reader.ReadLine()) != null)
{
if (line.Contains("X-TIMESTAMP-MAP=MPEGTS"))
{
timeOffset = (double.Parse(line.Substring(line.IndexOf(":") + 1, line.IndexOf(",") - line.IndexOf(":") - 1)) - 900000) / 90000.0;
}
else if (IsTimecode(line))
{
var srtItem = new SrtSubtitleItem();
lineNumber++;
line = line.Replace('.', ',');
line = DeleteCueSettings(line);
string timeSrt1 = line.Substring(0, line.IndexOf('-'));
string timeSrt2 = line.Substring(line.IndexOf('>') + 1);
DateTime timeAux1 = DateTime.ParseExact(timeSrt1.Trim(), "hh:mm:ss,fff", CultureInfo.InvariantCulture).AddSeconds(timeOffset);
DateTime timeAux2 = DateTime.ParseExact(timeSrt2.Trim(), "hh:mm:ss,fff", CultureInfo.InvariantCulture).AddSeconds(timeOffset);
srtItem.Start = timeAux1;
srtItem.End = timeAux2;
bool foundCaption = false;
while (true)
{
if ((line = reader.ReadLine()) == null)
{
if (foundCaption)
{
break;
}
else
{
throw new Exception("Invalid file");
}
}
if (string.IsNullOrEmpty(line) || string.IsNullOrWhiteSpace(line))
{
srtItem.Text.AppendLine();
break;
}
foundCaption = true;
srtItem.Text.AppendLine(line);
}
subtitle.Items.Add(srtItem);
}
}
return(subtitle);
}
