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Diffstat (limited to 'third_party/libwebrtc/rtc_base/experiments/rate_control_settings.h')
-rw-r--r-- | third_party/libwebrtc/rtc_base/experiments/rate_control_settings.h | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/third_party/libwebrtc/rtc_base/experiments/rate_control_settings.h b/third_party/libwebrtc/rtc_base/experiments/rate_control_settings.h new file mode 100644 index 0000000000..05e942d39f --- /dev/null +++ b/third_party/libwebrtc/rtc_base/experiments/rate_control_settings.h @@ -0,0 +1,93 @@ +/* + * Copyright (c) 2019 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 RTC_BASE_EXPERIMENTS_RATE_CONTROL_SETTINGS_H_ +#define RTC_BASE_EXPERIMENTS_RATE_CONTROL_SETTINGS_H_ + +#include "absl/types/optional.h" +#include "api/field_trials_view.h" +#include "api/units/data_size.h" +#include "api/video_codecs/video_codec.h" +#include "rtc_base/experiments/struct_parameters_parser.h" +#include "video/config/video_encoder_config.h" + +namespace webrtc { + +struct CongestionWindowConfig { + static constexpr char kKey[] = "WebRTC-CongestionWindow"; + absl::optional<int> queue_size_ms; + absl::optional<int> min_bitrate_bps; + absl::optional<DataSize> initial_data_window; + bool drop_frame_only = false; + std::unique_ptr<StructParametersParser> Parser(); + static CongestionWindowConfig Parse(absl::string_view config); +}; + +struct VideoRateControlConfig { + static constexpr char kKey[] = "WebRTC-VideoRateControl"; + absl::optional<double> pacing_factor; + bool alr_probing = false; + absl::optional<int> vp8_qp_max; + absl::optional<int> vp8_min_pixels; + bool trust_vp8 = true; + bool trust_vp9 = true; + bool bitrate_adjuster = true; + bool adjuster_use_headroom = true; + bool vp8_s0_boost = false; + bool vp8_base_heavy_tl3_alloc = false; + + std::unique_ptr<StructParametersParser> Parser(); +}; + +class RateControlSettings final { + public: + ~RateControlSettings(); + RateControlSettings(RateControlSettings&&); + + static RateControlSettings ParseFromFieldTrials(); + static RateControlSettings ParseFromKeyValueConfig( + const FieldTrialsView* const key_value_config); + + // When CongestionWindowPushback is enabled, the pacer is oblivious to + // the congestion window. The relation between outstanding data and + // the congestion window affects encoder allocations directly. + bool UseCongestionWindow() const; + int64_t GetCongestionWindowAdditionalTimeMs() const; + bool UseCongestionWindowPushback() const; + bool UseCongestionWindowDropFrameOnly() const; + uint32_t CongestionWindowMinPushbackTargetBitrateBps() const; + absl::optional<DataSize> CongestionWindowInitialDataWindow() const; + + absl::optional<double> GetPacingFactor() const; + bool UseAlrProbing() const; + + absl::optional<int> LibvpxVp8QpMax() const; + absl::optional<int> LibvpxVp8MinPixels() const; + bool LibvpxVp8TrustedRateController() const; + bool Vp8BoostBaseLayerQuality() const; + bool Vp8DynamicRateSettings() const; + bool LibvpxVp9TrustedRateController() const; + bool Vp9DynamicRateSettings() const; + + bool Vp8BaseHeavyTl3RateAllocation() const; + + bool UseEncoderBitrateAdjuster() const; + bool BitrateAdjusterCanUseNetworkHeadroom() const; + + private: + explicit RateControlSettings(const FieldTrialsView* const key_value_config); + + CongestionWindowConfig congestion_window_config_; + VideoRateControlConfig video_config_; +}; + +} // namespace webrtc + +#endif // RTC_BASE_EXPERIMENTS_RATE_CONTROL_SETTINGS_H_ |