public string GetText(MatroskaTrackInfo matroskaTrackInfo)
{
var data = GetData(matroskaTrackInfo);
if (data != null)
{
// terminate string at first binary zero - https://github.com/Matroska-Org/ebml-specification/blob/master/specification.markdown#terminating-elements
// https://github.com/SubtitleEdit/subtitleedit/issues/2732
int max = data.Length;
for (int i = 0; i < max; i++)
{
if (data[i] == 0)
{
max = i;
break;
}
}
var text = System.Text.Encoding.UTF8.GetString(data, 0, max);
// normalize "new line" to current OS default - also see https://github.com/SubtitleEdit/subtitleedit/issues/2838
text = text.Replace("\\N", Environment.NewLine);
text = string.Join(Environment.NewLine, text.SplitToLines());
return(text);
}
return(string.Empty);
}
/// <summary>
/// Get data, if contentEncodingType == 0, then data is compressed with zlib
/// </summary>
/// <param name="matroskaTrackInfo"></param>
/// <returns>Data byte array (uncompressed)</returns>
public byte[] GetData(MatroskaTrackInfo matroskaTrackInfo)
{
if (matroskaTrackInfo.ContentEncodingType != MatroskaTrackInfo.ContentEncodingTypeCompression || // no compression
(matroskaTrackInfo.ContentEncodingScope & MatroskaTrackInfo.ContentEncodingScopeTracks) == 0) // tracks not compressed
{
return(Data);
}
var outStream = new MemoryStream();
var outZStream = new zlib.ZOutputStream(outStream);
var inStream = new MemoryStream(Data);
byte[] buffer;
try
{
MatroskaTrackInfo.CopyStream(inStream, outZStream);
buffer = new byte[outZStream.TotalOut];
outStream.Position = 0;
outStream.Read(buffer, 0, buffer.Length);
}
finally
{
outZStream.Close();
inStream.Close();
}
return(buffer);
}
public string GetText(MatroskaTrackInfo matroskaTrackInfo)
{
var data = GetData(matroskaTrackInfo);
if (data != null)
{
return(System.Text.Encoding.UTF8.GetString(data).Replace("\\N", Environment.NewLine));
}
return(string.Empty);
}
public string GetText(MatroskaTrackInfo matroskaTrackInfo)
{
var data = GetData(matroskaTrackInfo);
if (data != null)
{
// terminate string at first binary zero - https://github.com/Matroska-Org/ebml-specification/blob/master/specification.markdown#terminating-elements
// https://github.com/SubtitleEdit/subtitleedit/issues/2732
int max = data.Length;
for (int i = 0; i < max; i++)
{
if (data[i] == 0)
{
max = i;
break;
}
}
return(System.Text.Encoding.UTF8.GetString(data, 0, max).Replace("\\N", Environment.NewLine));
}
return(string.Empty);
}
public static Subtitle LoadMatroskaSSA(MatroskaTrackInfo matroskaSubtitleInfo, string fileName, SubtitleFormat format, List<MatroskaSubtitle> sub)
{
var subtitle = new Subtitle { Header = matroskaSubtitleInfo.CodecPrivate };
var lines = new List<string>();
foreach (string l in subtitle.Header.Trim().SplitToLines())
lines.Add(l);
var footer = new StringBuilder();
var comments = new Subtitle();
if (!string.IsNullOrEmpty(matroskaSubtitleInfo.CodecPrivate))
{
bool footerOn = false;
foreach (string line in lines)
{
if (footerOn)
{
footer.AppendLine(line);
}
else if (line.Trim() == "[Events]")
{
}
else if (line.Trim() == "[Fonts]" || line.Trim() == "[Graphics]")
{
footerOn = true;
footer.AppendLine();
footer.AppendLine();
footer.AppendLine(line);
}
else if (line.StartsWith("Comment:", StringComparison.Ordinal))
{
var arr = line.Split(',');
if (arr.Length > 3)
{
arr = arr[1].Split(new[] { ':', '.' });
if (arr.Length == 4)
{
int hour;
int min;
int sec;
int ms;
if (int.TryParse(arr[0], out hour) && int.TryParse(arr[1], out min) &&
int.TryParse(arr[2], out sec) && int.TryParse(arr[3], out ms))
{
comments.Paragraphs.Add(new Paragraph(new TimeCode(hour, min, sec, ms * 10), new TimeCode(0, 0, 0, 0), line));
}
}
}
}
}
}
const string headerFormat = "Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text";
if (!subtitle.Header.Contains("[Events]"))
{
subtitle.Header = subtitle.Header.Trim() + Environment.NewLine +
Environment.NewLine +
"[Events]" + Environment.NewLine +
headerFormat + Environment.NewLine;
}
else
{
subtitle.Header = subtitle.Header.Remove(subtitle.Header.IndexOf("[Events]", StringComparison.Ordinal));
subtitle.Header = subtitle.Header.Trim() + Environment.NewLine +
Environment.NewLine +
"[Events]" + Environment.NewLine +
headerFormat + Environment.NewLine;
}
lines = new List<string>();
foreach (string l in subtitle.Header.Trim().SplitToLines())
lines.Add(l);
const string timeCodeFormat = "{0}:{1:00}:{2:00}.{3:00}"; // h:mm:ss.cc
foreach (var mp in sub)
{
var p = new Paragraph(string.Empty, mp.Start, mp.End);
string start = string.Format(timeCodeFormat, p.StartTime.Hours, p.StartTime.Minutes, p.StartTime.Seconds, p.StartTime.Milliseconds / 10);
string end = string.Format(timeCodeFormat, p.EndTime.Hours, p.EndTime.Minutes, p.EndTime.Seconds, p.EndTime.Milliseconds / 10);
//MKS contains this: ReadOrder, Layer, Style, Name, MarginL, MarginR, MarginV, Effect, Text
for (int commentIndex = 0; commentIndex < comments.Paragraphs.Count; commentIndex++)
{
var cp = comments.Paragraphs[commentIndex];
if (cp.StartTime.TotalMilliseconds <= p.StartTime.TotalMilliseconds)
lines.Add(cp.Text);
}
for (int commentIndex = comments.Paragraphs.Count - 1; commentIndex >= 0; commentIndex--)
{
var cp = comments.Paragraphs[commentIndex];
if (cp.StartTime.TotalMilliseconds <= p.StartTime.TotalMilliseconds)
comments.Paragraphs.RemoveAt(commentIndex);
}
string text = mp.Text.Replace(Environment.NewLine, "\\N");
int idx = text.IndexOf(',') + 1;
if (idx > 0 && idx < text.Length)
{
text = text.Remove(0, idx); // remove ReadOrder
idx = text.IndexOf(',');
text = text.Insert(idx, "," + start + "," + end);
lines.Add("Dialogue: " + text);
}
}
for (int commentIndex = 0; commentIndex < comments.Paragraphs.Count; commentIndex++)
{
var cp = comments.Paragraphs[commentIndex];
lines.Add(cp.Text);
}
foreach (string l in footer.ToString().SplitToLines())
lines.Add(l);
format.LoadSubtitle(subtitle, lines, fileName);
return subtitle;
}
public static SubtitleFormat LoadMatroskaTextSubtitle(MatroskaTrackInfo matroskaSubtitleInfo, MatroskaFile matroska, List<MatroskaSubtitle> sub, Subtitle subtitle)
{
if (subtitle == null)
throw new ArgumentNullException("subtitle");
subtitle.Paragraphs.Clear();
var isSsa = false;
SubtitleFormat format = new SubRip();
if (matroskaSubtitleInfo.CodecPrivate.Contains("[script info]", StringComparison.OrdinalIgnoreCase))
{
if (matroskaSubtitleInfo.CodecPrivate.Contains("[V4 Styles]", StringComparison.OrdinalIgnoreCase))
format = new SubStationAlpha();
else
format = new AdvancedSubStationAlpha();
isSsa = true;
}
if (isSsa)
{
foreach (var p in LoadMatroskaSSA(matroskaSubtitleInfo, matroska.Path, format, sub).Paragraphs)
{
subtitle.Paragraphs.Add(p);
}
if (!string.IsNullOrEmpty(matroskaSubtitleInfo.CodecPrivate))
{
bool eventsStarted = false;
bool fontsStarted = false;
bool graphicsStarted = false;
var header = new StringBuilder();
foreach (string line in matroskaSubtitleInfo.CodecPrivate.Replace(Environment.NewLine, "\n").Split('\n'))
{
if (!eventsStarted && !fontsStarted && !graphicsStarted)
{
header.AppendLine(line);
}
if (line.TrimStart().StartsWith("dialog:", StringComparison.OrdinalIgnoreCase))
{
eventsStarted = true;
fontsStarted = false;
graphicsStarted = false;
}
else if (line.Trim().Equals("[events]", StringComparison.OrdinalIgnoreCase))
{
eventsStarted = true;
fontsStarted = false;
graphicsStarted = false;
}
else if (line.Trim().Equals("[fonts]", StringComparison.OrdinalIgnoreCase))
{
eventsStarted = false;
fontsStarted = true;
graphicsStarted = false;
}
else if (line.Trim().Equals("[graphics]", StringComparison.OrdinalIgnoreCase))
{
eventsStarted = false;
fontsStarted = false;
graphicsStarted = true;
}
}
subtitle.Header = header.ToString().TrimEnd();
if (!subtitle.Header.Contains("[events]", StringComparison.OrdinalIgnoreCase))
{
subtitle.Header += Environment.NewLine + Environment.NewLine + "[Events]" + Environment.NewLine;
}
}
}
else
{
foreach (var p in sub)
{
subtitle.Paragraphs.Add(new Paragraph(p.Text, p.Start, p.End));
}
}
subtitle.Renumber();
return format;
}
