diff --git a/human/__init__.py b/human/__init__.py
new file mode 100644
index 0000000..7d606c4
--- /dev/null
+++ b/human/__init__.py
@@ -0,0 +1,3 @@
+#encoding = utf8
+
+from .human_context import HumanContext
diff --git a/human/human_context.py b/human/human_context.py
new file mode 100644
index 0000000..f5231f5
--- /dev/null
+++ b/human/human_context.py
@@ -0,0 +1,31 @@
+#encoding = utf8
+
+
+class HumanContext:
+    def __init__(self):
+        self._fps = 50  # 20 ms per frame
+        self._batch_size = 16
+        self._sample_rate = 16000
+        self._stride_left_size = 10
+        self._stride_right_size = 10
+
+    @property
+    def fps(self):
+        return self._fps
+
+    @property
+    def batch_size(self):
+        return self._batch_size
+
+    @property
+    def sample_rate(self):
+        return self._sample_rate
+
+    @property
+    def stride_left_size(self):
+        return self._stride_left_size
+
+    @property
+    def stride_right_size(self):
+        return self._stride_right_size
+
diff --git a/render/__init__.py b/render/__init__.py
new file mode 100644
index 0000000..6bb50fc
--- /dev/null
+++ b/render/__init__.py
@@ -0,0 +1,2 @@
+#encoding = utf8
+
diff --git a/render/audio_render.py b/render/audio_render.py
new file mode 100644
index 0000000..2fb5f3b
--- /dev/null
+++ b/render/audio_render.py
@@ -0,0 +1,8 @@
+#encoding = utf8
+from .base_render import BaseRender
+
+
+class AudioRender(BaseRender):
+    def __init__(self):
+        super().__init__()
+
diff --git a/render/base_render.py b/render/base_render.py
new file mode 100644
index 0000000..f1f946e
--- /dev/null
+++ b/render/base_render.py
@@ -0,0 +1,10 @@
+#encoding = utf8
+
+from abc import ABC, abstractmethod
+
+
+class BaseRender(ABC):
+    def __init__(self):
+        pass
+
+
diff --git a/render/video_render.py b/render/video_render.py
new file mode 100644
index 0000000..25ace54
--- /dev/null
+++ b/render/video_render.py
@@ -0,0 +1,7 @@
+#encoding = utf8
+from base_render import BaseRender
+
+
+class videoRender(BaseRender):
+    def __init__(self):
+        super().__init__()