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53 lines
1.9 KiB
C++
53 lines
1.9 KiB
C++
/*
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* Copyright 2020 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef VIDEO_ADAPTATION_BALANCED_CONSTRAINT_H_
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#define VIDEO_ADAPTATION_BALANCED_CONSTRAINT_H_
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#include <string>
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#include "absl/types/optional.h"
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#include "api/field_trials_view.h"
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#include "api/sequence_checker.h"
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#include "call/adaptation/adaptation_constraint.h"
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#include "call/adaptation/degradation_preference_provider.h"
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#include "rtc_base/experiments/balanced_degradation_settings.h"
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#include "rtc_base/system/no_unique_address.h"
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namespace webrtc {
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class BalancedConstraint : public AdaptationConstraint {
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public:
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BalancedConstraint(
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DegradationPreferenceProvider* degradation_preference_provider,
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const FieldTrialsView& field_trials);
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~BalancedConstraint() override = default;
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void OnEncoderTargetBitrateUpdated(
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absl::optional<uint32_t> encoder_target_bitrate_bps);
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// AdaptationConstraint implementation.
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std::string Name() const override { return "BalancedConstraint"; }
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bool IsAdaptationUpAllowed(
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const VideoStreamInputState& input_state,
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const VideoSourceRestrictions& restrictions_before,
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const VideoSourceRestrictions& restrictions_after) const override;
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private:
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RTC_NO_UNIQUE_ADDRESS SequenceChecker sequence_checker_;
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absl::optional<uint32_t> encoder_target_bitrate_bps_
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RTC_GUARDED_BY(&sequence_checker_);
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const BalancedDegradationSettings balanced_settings_;
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const DegradationPreferenceProvider* degradation_preference_provider_;
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};
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} // namespace webrtc
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#endif // VIDEO_ADAPTATION_BALANCED_CONSTRAINT_H_
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