diff --git a/media/omx/1.0/IOmxBufferSource.hal b/media/omx/1.0/IOmxBufferSource.hal
new file mode 100644
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+++ b/media/omx/1.0/IOmxBufferSource.hal
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.media.omx@1.0;
+
+import android.hardware.media@1.0::types;
+
+/**
+ * Ref: frameworks/av/media/libmedia/aidl/android/IOMXBufferSource.aidl
+ *
+ * IOmxBufferSource is an interface for a listener for certain events from an
+ * IOmxNode instance. Use IOmxNode::setInputSurface() to attach an
+ * IOmxBufferSource instance to an IOmxNode instance.
+ *
+ * @see OMX_STATETYPE in the OpenMax IL standard.
+ */
+interface IOmxBufferSource {
+
+    /**
+     * onOmxExecuting() is invoked when the node state changes to
+     * OMX_StateExecuting state.
+     */
+    oneway onOmxExecuting();
+
+    /**
+     * onOmxIdle() is invoked when the node transitions from OMX_StateExecuting
+     * to OMX_StateIdle.
+     */
+    oneway onOmxIdle();
+
+    /**
+     * onOmxLoaded() is invoked when the node transitions from OMX_StateIdle or
+     * OMX_StateExecuting to OMX_StateLoaded.
+     */
+    oneway onOmxLoaded();
+
+    /**
+     * onInputBufferAdded() is invoked after a new input buffer is added to the
+     * node. This may happen within IOmxNode::allocateSecureBuffer() or
+     * IOmxNode::useBuffer().
+     *
+     * @param[in] buffer is the id of the added buffer.
+     */
+    oneway onInputBufferAdded(BufferId buffer);
+
+    /**
+     * onInputBufferEmptied() is invoked after an input buffer is emptied. This
+     * may happen within IOmxNode::emptyBuffer().
+     *
+     * @param[in] buffer is the id of the emptied buffer.
+     * @param[in] fence is the fence associated with the buffer.
+     */
+    oneway onInputBufferEmptied(BufferId buffer, Fence fence);
+};
+