public static Box FromStream(Stream stream, BaseMediaOptions options = BaseMediaOptions.LoadChildren)
{
Box box = null;
try
{
ulong offset = (ulong)stream.Position;
uint size = stream.ReadBEUInt32();
uint type = stream.ReadBEUInt32();
ulong?largeSize = null;
if (size == 1)
{
largeSize = stream.ReadBEUInt64();
}
BoxType boxType = (type == uuidType)
? new BoxType(new Guid(stream.ReadBytes(16)))
: new BoxType(type);
AvailableBoxTypes.TryGetValue(boxType, out Type t);
box = t != null ? (Box)Activator.CreateInstance(t) : new Boxes.UnknownBox(boxType);
box.Size = size;
box.LargeSize = largeSize;
box.Offset = offset;
box.Initialize(ConstrainedStream.WrapStream(stream), options);
}
catch (EndOfStreamException) { }
return(box);
}
public BaseMediaReader(Stream stream, BaseMediaOptions options = BaseMediaOptions.None)
{
if (stream.CanSeek && stream.Position != 0)
{
stream.Seek(0, SeekOrigin.Begin);
}
BaseStream = stream;
Options = options;
}
internal void Initialize(Stream stream, BaseMediaOptions options = BaseMediaOptions.LoadChildren)
{
Trace.WriteLine(Type, "Loading");
_SourceStream = stream;
ConstrainedStream constrainedStream = ConstrainedStream.WrapStream(stream);
constrainedStream.PushConstraint((long)Offset.Value, (long)EffectiveSize);
LoadFromStream(stream);
ContentOffset = (ulong)stream.Position;
if (((options & BaseMediaOptions.LoadChildren) == BaseMediaOptions.LoadChildren) && this is ISuperBox)
{
LoadChildrenFromStream(stream);
}
Sync(stream, !(this is IContentBox));
constrainedStream.PopConstraint();
}
public BaseMediaReader(Stream stream, BaseMediaOptions options = BaseMediaOptions.None)
{
if (stream.CanSeek && stream.Position!=0) stream.Seek(0, SeekOrigin.Begin);
BaseStream = stream;
Options = options;
}
