/// <summary>
/// Constructs a <see cref="Track" /> parsing from provided
/// file data.
/// Parsing will be done reading from _file at position references by
/// parent element's data section.
/// </summary>
/// <param name="_file"><see cref="File" /> instance to read from.</param>
/// <param name="element">Parent <see cref="EBMLreader" />.</param>
public Track(File _file, EBMLreader element)
{
ulong i = 0;
while (i < element.DataSize)
{
var child = new EBMLreader(_file, element.DataOffset + i);
var matroska_id = child.ID;
switch (matroska_id)
{
case MatroskaID.TrackNumber:
track_number = child.ReadULong();
break;
case MatroskaID.TrackUID:
_UID = child.ReadULong();
break;
case MatroskaID.CodecID:
track_codec_id = child.ReadString();
break;
case MatroskaID.CodecName:
track_codec_name = child.ReadString();
break;
case MatroskaID.TrackName:
track_name = child.ReadString();
break;
case MatroskaID.TrackLanguage:
track_language = child.ReadString();
break;
case MatroskaID.TrackFlagEnabled:
track_enabled = child.ReadBool();
break;
case MatroskaID.TrackFlagDefault:
track_default = child.ReadBool();
break;
case MatroskaID.CodecPrivate:
codec_data = child.ReadBytes();
break;
default:
UnknownElements.Add(child);
break;
}
i += child.Size;
}
}
private void ReadHeader(EBMLreader element)
{
string doctype = null;
ulong i = 0;
while (i < element.DataSize)
{
var child = new EBMLreader(element, element.DataOffset + i);
var ebml_id = (EBMLID)child.ID;
switch (ebml_id)
{
case EBMLID.EBMLDocType:
doctype = child.ReadString();
break;
}
i += child.Size;
}
// Check DocType
if (string.IsNullOrEmpty(doctype) || doctype != "matroska" && doctype != "webm")
{
throw new UnsupportedFormatException("DocType is not matroska or webm");
}
}
private void ReadAttachedFile(EBMLreader element, ReadStyle propertiesStyle)
{
ulong i = 0;
#pragma warning disable 219 // Assigned, never read
string file_name = null, file_mime = null, file_desc = null;
EBMLreader file_data = null;
ulong file_uid = 0;
#pragma warning restore 219
while (i < element.DataSize)
{
var child = new EBMLreader(element, element.DataOffset + i);
var matroska_id = child.ID;
switch (matroska_id)
{
case MatroskaID.FileName:
file_name = child.ReadString();
break;
case MatroskaID.FileMimeType:
file_mime = child.ReadString();
break;
case MatroskaID.FileDescription:
file_desc = child.ReadString();
break;
case MatroskaID.FileData:
file_data = child;
break;
case MatroskaID.FileUID:
file_uid = child.ReadULong();
break;
}
i += child.Size;
}
}
