1 files changed, 27 insertions, 0 deletions
diff --git a/src/gr-fadingui/python/xor_frame_sync.py b/src/gr-fadingui/python/xor_frame_sync.py
new file mode 100644
index 0000000..9d9064f
--- /dev/null
+++ b/src/gr-fadingui/python/xor_frame_sync.py
@@ -0,0 +1,27 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+#
+# Copyright 2021 Naoki Pross.
+
+
+import numpy
+from gnuradio import gr
+
+class xor_frame_sync(gr.sync_block):
+    """
+    docstring for block xor_frame_sync
+    """
+    def __init__(self, sync_pattern):
+        gr.sync_block.__init__(self,
+            name="xor_frame_sync",
+            in_sig=[np.byte],
+            out_sig=[np.byte])
+
+    def work(self, input_items, output_items):
+        inp = input_items[0]
+        out = output_items[0]
+
+        out[:] = inp
+
+        return len(output_items[0])
+