1 /*
2  *  Copyright 2016 The WebRTC Project Authors. All rights reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #import <Foundation/Foundation.h>
12 
13 #import "RTCMacros.h"
14 
15 /** The only valid value for the following if set is kRTCFieldTrialEnabledValue. */
16 RTC_EXTERN NSString * const kRTCFieldTrialAudioSendSideBweKey;
17 RTC_EXTERN NSString * const kRTCFieldTrialAudioForceNoTWCCKey;
18 RTC_EXTERN NSString * const kRTCFieldTrialAudioForceABWENoTWCCKey;
19 RTC_EXTERN NSString * const kRTCFieldTrialSendSideBweWithOverheadKey;
20 RTC_EXTERN NSString * const kRTCFieldTrialFlexFec03AdvertisedKey;
21 RTC_EXTERN NSString * const kRTCFieldTrialFlexFec03Key;
22 RTC_EXTERN NSString * const kRTCFieldTrialH264HighProfileKey;
23 RTC_EXTERN NSString * const kRTCFieldTrialMinimizeResamplingOnMobileKey;
24 
25 /** The valid value for field trials above. */
26 RTC_EXTERN NSString * const kRTCFieldTrialEnabledValue;
27 
28 /** Initialize field trials using a dictionary mapping field trial keys to their
29  * values. See above for valid keys and values. Must be called before any other
30  * call into WebRTC. See: webrtc/system_wrappers/include/field_trial.h
31  */
32 RTC_EXTERN void RTCInitFieldTrialDictionary(NSDictionary<NSString *, NSString *> *fieldTrials);
33