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/*
* Copyright 2016 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.
*/
#import <Foundation/Foundation.h>
#import <WebRTC/RTCMacros.h>
/** The only valid value for the following if set is kRTCFieldTrialEnabledValue. */
RTC_EXTERN NSString * const kRTCFieldTrialAudioSendSideBweKey;
RTC_EXTERN NSString * const kRTCFieldTrialSendSideBweWithOverheadKey;
RTC_EXTERN NSString * const kRTCFieldTrialFlexFec03AdvertisedKey;
RTC_EXTERN NSString * const kRTCFieldTrialFlexFec03Key;
RTC_EXTERN NSString * const kRTCFieldTrialImprovedBitrateEstimateKey;
RTC_EXTERN NSString * const kRTCFieldTrialH264HighProfileKey;
RTC_EXTERN NSString * const kRTCFieldTrialMinimizeResamplingOnMobileKey;
/** The valid value for field trials above. */
RTC_EXTERN NSString * const kRTCFieldTrialEnabledValue;
/** Use a string returned by RTCFieldTrialMedianSlopeFilterValue as the value. */
RTC_EXTERN NSString * const kRTCFieldTrialMedianSlopeFilterKey;
RTC_EXTERN NSString *RTCFieldTrialMedianSlopeFilterValue(
size_t windowSize, double thresholdGain);
/** Use a string returned by RTCFieldTrialTrendlineFilterValue as the value. */
RTC_EXTERN NSString * const kRTCFieldTrialTrendlineFilterKey;
/** Returns a valid value for kRTCFieldTrialTrendlineFilterKey. */
RTC_EXTERN NSString *RTCFieldTrialTrendlineFilterValue(
size_t windowSize, double smoothingCoeff, double thresholdGain);
/** Initialize field trials using a dictionary mapping field trial keys to their values. See above
* for valid keys and values.
* Must be called before any other call into WebRTC. See:
* webrtc/system_wrappers/include/field_trial_default.h
*/
RTC_EXTERN void RTCInitFieldTrialDictionary(NSDictionary<NSString *, NSString *> *fieldTrials);