1 files changed, 36 insertions, 0 deletions
diff --git a/devices/src/virtio/video/event.rs b/devices/src/virtio/video/event.rs
new file mode 100644
index 0000000..8c49253
--- /dev/null
+++ b/devices/src/virtio/video/event.rs
@@ -0,0 +1,36 @@
+// Copyright 2020 The Chromium OS Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+//! Events can happen in virtio video devices.
+
+use std::io;
+
+use data_model::Le32;
+use enumn::N;
+
+use crate::virtio::video::protocol::*;
+use crate::virtio::video::response::Response;
+use crate::virtio::Writer;
+
+#[allow(dead_code)] // TODO(keiichiw): Remove this attribute
+#[derive(Debug, Copy, Clone, N)]
+pub enum EvtType {
+    Error = VIRTIO_VIDEO_EVENT_ERROR as isize,
+    DecResChanged = VIRTIO_VIDEO_EVENT_DECODER_RESOLUTION_CHANGED as isize,
+}
+
+#[derive(Debug, Clone)]
+pub struct VideoEvt {
+    pub typ: EvtType,
+    pub stream_id: u32,
+}
+
+impl Response for VideoEvt {
+    fn write(&self, w: &mut Writer) -> Result<(), io::Error> {
+        w.write_obj(virtio_video_event {
+            event_type: Le32::from(self.typ as u32),
+            stream_id: Le32::from(self.stream_id),
+        })
+    }
+}