diff --git a/src/layers/__init__.py b/src/layers/__init__.py
new file mode 100644
index 0000000..9230f8e
--- /dev/null
+++ b/src/layers/__init__.py
@@ -0,0 +1,2 @@
+from .layer import Layer
+from .transcoder import Transcoder
diff --git a/src/layers/layer.py b/src/layers/layer.py
new file mode 100644
index 0000000..242fb9e
--- /dev/null
+++ b/src/layers/layer.py
@@ -0,0 +1,10 @@
+from abc import ABC, abstractmethod
+from dir import Root
+
+class Layer(ABC):
+    def __init__(self):
+        pass
+
+    @abstractmethod
+    def __process(self, root: Root):
+        raise NotImplementedError
\ No newline at end of file