public byte[] SerializeAsEbml()
{
byte[] data = Serialize();
byte[] elementLengthCoded = EbmlHelper.MakeEbmlUInt(data.Length);
byte[] element = new byte[EbmlElementIDs.ReSampleTrack.Length + elementLengthCoded.Length + data.Length];
using (BinaryWriter bw = new BinaryWriter(new MemoryStream(element)))
{
bw.Write(EbmlElementIDs.ReSampleTrack);
bw.Write(elementLengthCoded);
bw.Write(data);
}
return(element);
}
public static void CreateSRS(SortedList <int, TrackData> tracks, FileData file, FileInfo inFile, FileInfo srsFile, bool bigFile)
{
using (FileStream fsOut = srsFile.Create())
using (EbmlReader rdr = new EbmlReader(inFile.FullName, EbmlReadMode.MKV))
{
while (rdr.Read())
{
fsOut.Write(rdr.Element.RawHeader, 0, rdr.Element.RawHeader.Length);
switch (rdr.ElementType)
{
case EbmlElementType.Segment:
// in store mode, create and write our custom ebml element as the first child of the segment
byte[] fileElement = file.SerializeAsEbml();
int elementSize = fileElement.Length;
byte[][] trackElements = new byte[tracks.Count][];
for (int i = 0; i < tracks.Count; i++)
{
if (bigFile)
{
tracks.Values[i].Flags |= TrackData.TrackDataFlags.BigFile;
}
trackElements[i] = tracks.Values[i].SerializeAsEbml();
elementSize += trackElements[i].Length;
}
byte[] elementSizeCoded = EbmlHelper.MakeEbmlUInt(elementSize);
byte[] element = new byte[EbmlElementIDs.ReSample.Length + elementSizeCoded.Length + elementSize];
fsOut.Write(EbmlElementIDs.ReSample, 0, EbmlElementIDs.ReSample.Length);
fsOut.Write(elementSizeCoded, 0, elementSizeCoded.Length);
fsOut.Write(fileElement, 0, fileElement.Length);
foreach (byte[] trackElement in trackElements)
{
fsOut.Write(trackElement, 0, trackElement.Length);
}
rdr.MoveToChild();
break;
case EbmlElementType.Cluster:
case EbmlElementType.BlockGroup:
case EbmlElementType.AttachmentList:
case EbmlElementType.Attachment:
// these elements have no useful info of their own, but we want to step into them to examine their children
rdr.MoveToChild();
break;
case EbmlElementType.AttachedFileData:
// eliminate the data from any attachments
rdr.SkipContents();
break;
case EbmlElementType.Block:
// copy block header, but eliminate any frame data
fsOut.Write(rdr.Block.RawBlockHeader, 0, rdr.Block.RawBlockHeader.Length);
rdr.SkipContents();
break;
default:
// anything not caught above is considered metadata, so we copy it as is
byte[] buff = rdr.ReadContents();
fsOut.Write(buff, 0, buff.Length);
break;
}
}
}
}
