Event.CopySegment not copy Segment

Submitted by morohe

Description

Current implementation write to unmanaged memory only. Not writeback to managed memory.

I propose the following implementation.
public Segment CopySegment()
{
Segment val = new Segment();
IntPtr native_segment = GLib.Marshaller.StructureToPtrAlloc(val);
gst_event_copy_segment(Handle, native_segment);
val = Marshal.PtrToStructure<Segment>(native_segment);
Marshal.FreeHGlobal(native_segment);
return val;
}

Thank you.

Version: 1.14.0