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+/*
+ * Copyright 2020 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 CALL_ADAPTATION_DEGRADATION_PREFERENCE_PROVIDER_H_
+#define CALL_ADAPTATION_DEGRADATION_PREFERENCE_PROVIDER_H_
+
+#include "api/rtp_parameters.h"
+
+namespace webrtc {
+
+class DegradationPreferenceProvider {
+ public:
+ virtual ~DegradationPreferenceProvider();
+
+ virtual DegradationPreference degradation_preference() const = 0;
+};
+
+} // namespace webrtc
+
+#endif // CALL_ADAPTATION_DEGRADATION_PREFERENCE_PROVIDER_H_