1 /* 2 * Copyright 2020 The WebRTC Project Authors. All rights reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef CALL_ADAPTATION_DEGRADATION_PREFERENCE_PROVIDER_H_ 12 #define CALL_ADAPTATION_DEGRADATION_PREFERENCE_PROVIDER_H_ 13 14 #include "api/rtp_parameters.h" 15 16 namespace webrtc { 17 18 // Thread-safe retrieval of degradation preferences. 19 class DegradationPreferenceProvider { 20 public: 21 virtual ~DegradationPreferenceProvider(); 22 23 virtual DegradationPreference degradation_preference() const = 0; 24 }; 25 26 } // namespace webrtc 27 28 #endif // CALL_ADAPTATION_DEGRADATION_PREFERENCE_PROVIDER_H_ 29