public void MkvInfo(string filePath)
{
using (var dataStream = File.OpenRead(filePath))
{
var reader = new EbmlReader(dataStream);
//reader.EnterContainer();
var headDumper = MakeElementDumper(
StandardDtd.EBMLDesc.EBMLVersion,
StandardDtd.EBMLDesc.EBMLReadVersion,
StandardDtd.EBMLDesc.DocTypeVersion,
StandardDtd.EBMLDesc.DocType,
StandardDtd.EBMLDesc.DocTypeReadVersion);
var trackInfoDumper = MakeElementDumper(
MatroskaDtd.Tracks.TrackEntry.TrackNumber,
MatroskaDtd.Tracks.TrackEntry.Name,
MatroskaDtd.Tracks.TrackEntry.Language,
MatroskaDtd.Tracks.TrackEntry.TrackType,
MatroskaDtd.Tracks.TrackEntry.CodecName
);
reader.ReadNext();
Assert.AreEqual(StandardDtd.EBML.Identifier, reader.ElementId);
headDumper(reader);
if (reader.LocateElement(MatroskaDtd.Segment))
{
reader.EnterContainer();
if (reader.LocateElement(MatroskaDtd.Tracks))
{
Console.WriteLine("Tracks");
reader.EnterContainer();
while (reader.ReadNext())
{
if (reader.ElementId == MatroskaDtd.Tracks.TrackEntry.Identifier)
{
trackInfoDumper(reader);
}
Console.WriteLine();
}
reader.LeaveContainer();
Console.WriteLine("end of Tracks");
}
if (reader.LocateElement(MatroskaDtd.Segment.Cluster))
{
Console.WriteLine("Got first track");
// TODO have to deal with interlaced track data
}
// reader.LeaveContainer();
}
}
}
public static ResultOfParsingMKV GetSubFromFile(string mkvFilePath)
{
ResultOfParsingMKV resPars = new ResultOfParsingMKV();
using (var fs = new FileStream(mkvFilePath, FileMode.Open, FileAccess.Read))
{
using (EbmlReader ebmlReader = new EbmlReader(fs))
{
var segmentFound = ebmlReader.LocateElement(MatroskaElementDescriptorProvider.Segment);
if (segmentFound)
{
StringBuilder sb = new StringBuilder();
MatroskaElementDescriptorProvider medp = new MatroskaElementDescriptorProvider();
ReadContainer(ebmlReader, medp, resPars, 0, sb);
}
}
}
// reenumerate
foreach(var elm in resPars.dicSub)
{
int i = 1;
var coll = elm.Value.Items.OrderBy(x => x.TimeStart);
foreach(var elm2 in coll)
{
elm2.Number = i++;
}
}
return resPars;
}
// Hierarchie des tags du conteneur MKV
public static void MatroskaTagsIndentator(string mkvFilePath)
{
MatroskaElementDescriptorProvider medp = new MatroskaElementDescriptorProvider();
using (var fs = new FileStream(mkvFilePath, FileMode.Open, FileAccess.Read))
using (EbmlReader ebmlReader = new EbmlReader(fs))
{
var segmentFound = ebmlReader.LocateElement(MatroskaElementDescriptorProvider.Segment);
if (segmentFound)
{
ebmlReader.EnterContainer();
MatroskaTagsDescriptor(ebmlReader, medp, "");
}
}
}
private void ReadData(Stream src)
{
var reader = new EbmlReader(src);
var readMap = new[]
{
new {Element = MatroskaDtd.Segment.Info.Title, Code = new Action(() => _title = reader.ReadUtf())},
new {Element = MatroskaDtd.Segment.Info.WritingApp, Code = new Action(() => _writingApp = reader.ReadUtf())},
new {Element = MatroskaDtd.Segment.Info.MuxingApp, Code = new Action(() => MuxingApp = reader.ReadUtf())},
new {Element = MatroskaDtd.Segment.Info.Duration, Code = new Action(() => Duration = TimeSpan.FromMilliseconds(reader.ReadFloat()))},
};
if (!reader.LocateElement(MatroskaDtd.Segment))
throw new InvalidDataException("Failed to locate Segment");
reader.EnterContainer();
var segmentInfoIdentifier = MatroskaDtd.Segment.Info.Identifier;
// support for Void block right before SegmentInfo
var priorElementId = VInt.MakeId(0);
var priorElementStart = -1l;
// locate SegmentInfo and track its predesessor
while (reader.ReadNext())
{
if (reader.ElementId == segmentInfoIdentifier) break;
priorElementId = reader.ElementId;
priorElementStart = reader.ElementPosition;
}
if (reader.ElementId != segmentInfoIdentifier)
throw new InvalidDataException("Failed to locate Segment");
_dataStart = priorElementId == StandardDtd.Void.Identifier ? priorElementStart : reader.ElementPosition;
var oldDataStart = reader.ElementPosition;
reader.EnterContainer();
while (reader.ReadNext())
{
var entry = readMap.FirstOrDefault(arg => arg.Element.Identifier == reader.ElementId);
if (entry != null)
entry.Code();
}
reader.LeaveContainer();
// getting start of the next element
reader.ReadNext();
if (reader.ElementId == StandardDtd.Void.Identifier)
{
reader.ReadNext();
}
_dataLength = (int)(reader.ElementPosition - _dataStart);
var oldDataLen = (int)(reader.ElementPosition - oldDataStart);
_oldSegmentInfoData = new byte[oldDataLen];
_stream.Seek(oldDataStart, SeekOrigin.Begin);
_stream.Read(_oldSegmentInfoData, 0, oldDataLen);
}
private void GetMatroskaTags()
{
MatroskaElementDescriptorProvider medp = new MatroskaElementDescriptorProvider();
using (var fs = new FileStream(path + "/" + fullName, FileMode.Open, FileAccess.Read))
using (EbmlReader ebmlReader = new EbmlReader(fs))
{
//Console.WriteLine("--------------" + labelName + "----------------");
var segmentFound = ebmlReader.LocateElement(MatroskaElementDescriptorProvider.Segment);
if (segmentFound)
{
ebmlReader.EnterContainer();
while (ebmlReader.ReadNext())
{
var descriptor = medp.GetElementDescriptor(ebmlReader.ElementId);
if (descriptor == null) continue;
if (descriptor.Name == "Tracks")
{
ebmlReader.EnterContainer();
while (ebmlReader.ReadNext())
{
var trackDescriptor = medp.GetElementDescriptor(ebmlReader.ElementId);
if (trackDescriptor == null) continue;
if (trackDescriptor.Name == "TrackEntry")
{
ebmlReader.EnterContainer();
long trackType = 0;
string trackLanguage = null;
while (ebmlReader.ReadNext())
{
var trackEntryDescriptor = medp.GetElementDescriptor(ebmlReader.ElementId);
if (trackEntryDescriptor == null) continue;
if (trackEntryDescriptor.Name == "Video")
{
ebmlReader.EnterContainer();
while (ebmlReader.ReadNext())
{
var videoDescriptor = medp.GetElementDescriptor(ebmlReader.ElementId);
if (videoDescriptor == null) continue;
if (videoDescriptor.Name == "PixelWidth")
{
width = ebmlReader.ReadInt();
}
else if (videoDescriptor.Name == "PixelHeight")
{
height = ebmlReader.ReadInt();
}
}
ebmlReader.LeaveContainer();
}
else if (trackEntryDescriptor.Name == "TrackType")
{
trackType = ebmlReader.ReadInt();
}
else if (trackEntryDescriptor.Name == "Language")
{
trackLanguage = ebmlReader.ReadUtf();
if (trackType == 0x11) //subtitle
{
listLanguageSubtitle.Add(trackLanguage);
//Console.WriteLine("subtitle : ->" + trackLanguage + "<-");
}
else if (trackType == 2) //audio
{
listLanguageAudio.Add(trackLanguage);
//Console.WriteLine("audio : ->" + trackLanguage + "<-");
}
}
}
ebmlReader.LeaveContainer();
}
}
ebmlReader.LeaveContainer();
break;
}
}
}
}
}
