static void OverrideAllocBuffer(GLib.GType gtype, AllocBufferNativeDelegate callback)
{
unsafe {
IntPtr *raw_ptr = (IntPtr *)(((long)gtype.GetClassPtr()) + (long)class_abi.GetFieldOffset("alloc_buffer"));
*raw_ptr = Marshal.GetFunctionPointerForDelegate((Delegate)callback);
}
}
private Gst.FlowReturn InternalAllocBuffer(Gst.Buffer buffer, Gst.BufferPoolAcquireParams parms)
{
AllocBufferNativeDelegate unmanaged = null;
unsafe {
IntPtr *raw_ptr = (IntPtr *)(((long)this.LookupGType().GetThresholdType().GetClassPtr()) + (long)class_abi.GetFieldOffset("alloc_buffer"));
unmanaged = (AllocBufferNativeDelegate)Marshal.GetDelegateForFunctionPointer(*raw_ptr, typeof(AllocBufferNativeDelegate));
}
if (unmanaged == null)
{
return((Gst.FlowReturn) 0);
}
IntPtr native_parms = GLib.Marshaller.StructureToPtrAlloc(parms);
int __result = unmanaged(this.Handle, buffer == null ? IntPtr.Zero : buffer.Handle, native_parms);
Marshal.FreeHGlobal(native_parms);
return((Gst.FlowReturn)__result);
}
