| /* |
| * 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 VIDEO_ADAPTATION_BALANCED_CONSTRAINT_H_ |
| #define VIDEO_ADAPTATION_BALANCED_CONSTRAINT_H_ |
| |
| #include <string> |
| |
| #include "absl/types/optional.h" |
| #include "call/adaptation/adaptation_constraint.h" |
| #include "call/adaptation/degradation_preference_provider.h" |
| #include "rtc_base/experiments/balanced_degradation_settings.h" |
| #include "rtc_base/synchronization/sequence_checker.h" |
| #include "rtc_base/system/no_unique_address.h" |
| |
| namespace webrtc { |
| |
| class BalancedConstraint : public AdaptationConstraint { |
| public: |
| explicit BalancedConstraint( |
| DegradationPreferenceProvider* degradation_preference_provider); |
| ~BalancedConstraint() override = default; |
| |
| void OnEncoderTargetBitrateUpdated( |
| absl::optional<uint32_t> encoder_target_bitrate_bps); |
| |
| // AdaptationConstraint implementation. |
| std::string Name() const override { return "BalancedConstraint"; } |
| bool IsAdaptationUpAllowed( |
| const VideoStreamInputState& input_state, |
| const VideoSourceRestrictions& restrictions_before, |
| const VideoSourceRestrictions& restrictions_after) const override; |
| |
| private: |
| RTC_NO_UNIQUE_ADDRESS SequenceChecker sequence_checker_; |
| absl::optional<uint32_t> encoder_target_bitrate_bps_ |
| RTC_GUARDED_BY(&sequence_checker_); |
| const BalancedDegradationSettings balanced_settings_; |
| const DegradationPreferenceProvider* degradation_preference_provider_; |
| }; |
| |
| } // namespace webrtc |
| |
| #endif // VIDEO_ADAPTATION_BALANCED_CONSTRAINT_H_ |