Adding upstream version 115.8.0esr.upstream/115.8.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 53 insertions, 0 deletions

diff --git a/third_party/libwebrtc/video/adaptation/balanced_constraint.h b/third_party/libwebrtc/video/adaptation/balanced_constraint.h
new file mode 100644
index 0000000000..22c7d2923c
--- /dev/null
+++ b/third_party/libwebrtc/video/adaptation/balanced_constraint.h
@@ -0,0 +1,53 @@
+/*
+ *  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 "api/field_trials_view.h"
+#include "api/sequence_checker.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/system/no_unique_address.h"
+
+namespace webrtc {
+
+class BalancedConstraint : public AdaptationConstraint {
+ public:
+  BalancedConstraint(
+      DegradationPreferenceProvider* degradation_preference_provider,
+      const FieldTrialsView& field_trials);
+  ~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_