1 files changed, 39 insertions, 0 deletions
diff --git a/third_party/libwebrtc/api/video/video_sink_interface.h b/third_party/libwebrtc/api/video/video_sink_interface.h
new file mode 100644
index 0000000000..9c1f5f3214
--- /dev/null
+++ b/third_party/libwebrtc/api/video/video_sink_interface.h
@@ -0,0 +1,39 @@
+/*
+ *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef API_VIDEO_VIDEO_SINK_INTERFACE_H_
+#define API_VIDEO_VIDEO_SINK_INTERFACE_H_
+
+#include "absl/types/optional.h"
+#include "api/video_track_source_constraints.h"
+#include "rtc_base/checks.h"
+
+namespace rtc {
+
+template <typename VideoFrameT>
+class VideoSinkInterface {
+ public:
+  virtual ~VideoSinkInterface() = default;
+
+  virtual void OnFrame(const VideoFrameT& frame) = 0;
+
+  // Should be called by the source when it discards the frame due to rate
+  // limiting.
+  virtual void OnDiscardedFrame() {}
+
+  // Called on the network thread when video constraints change.
+  // TODO(crbug/1255737): make pure virtual once downstream project adapts.
+  virtual void OnConstraintsChanged(
+      const webrtc::VideoTrackSourceConstraints& constraints) {}
+};
+
+}  // namespace rtc
+
+#endif  // API_VIDEO_VIDEO_SINK_INTERFACE_H_