// IEnumerable<Slice> accessor, assumes that this fragment has been read-in.
// index starts at _startIndex (it is the index of the slice in the track, not index in this fragment)
public override Slice this[int index]
{
get
{
if (index < _startIndex)
{
return(null);
}
if (_listOfSampleInfo == null)
{
return(null);
}
StreamDataBlockInfo sampleInfo = _listOfSampleInfo[index - _startIndex];
Slice slice = new Slice();
StreamDataBlockInfo sliceInfo = slice as StreamDataBlockInfo;
sliceInfo.Copy(sampleInfo);
_reader.BaseStream.Position = (long)sampleInfo.StreamOffset;
slice.SliceBytes = _reader.ReadBytes(sampleInfo.SliceSize); // return the actual bits from MDAT
slice.SliceSize = slice.SliceBytes.Length;
return(slice);
}
set // this can work only with ODT fragments because each fragment is its own file
{
// if original frag has not been read-in yet, do nothing
if (_listOfSampleInfo == null)
{
return;
}
FixupBoxesAndMDAT(index, value);
}
}
public override void Read(BoxReader reader)
{
using (SizeChecker checker = new SizeChecker(this, reader))
{
base.Read(reader);
UserType = reader.ReadBytes(4);
UserData = reader.ReadBytes((int)checker.DataLeft());
}
}
public override void Read(BoxReader reader)
{
using (SizeChecker checker = new SizeChecker(this, reader))
{
base.Read(reader);
UserType = reader.ReadBytes(4);
UserData = reader.ReadBytes((int)checker.DataLeft());
}
}
public override void Read(BoxReader reader)
{
base.Read(reader);
reader.ReadBytes(6); // unsinged int(8)[6] reserved = 0
DataReferenceIndex = reader.ReadUInt16();
}