rhubarb-lip-sync/lib/webrtc-8d2248ff/webrtc/sdk/objc/Framework/Classes/RTCFieldTrials.mm

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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 "WebRTC/RTCFieldTrials.h"
#include <memory>
#import "WebRTC/RTCLogging.h"
#include "webrtc/system_wrappers/include/field_trial_default.h"
static NSString * const kRTCEnableSendSideBweString =
@"WebRTC-SendSideBwe/Enabled/";
static std::unique_ptr<char[]> gFieldTrialInitString;
void RTCInitFieldTrials(RTCFieldTrialOptions options) {
NSMutableString *fieldTrialInitString = [NSMutableString string];
if (options & RTCFieldTrialOptionsSendSideBwe) {
[fieldTrialInitString appendString:kRTCEnableSendSideBweString];
}
size_t len = fieldTrialInitString.length + 1;
gFieldTrialInitString.reset(new char[len]);
if (![fieldTrialInitString getCString:gFieldTrialInitString.get()
maxLength:len
encoding:NSUTF8StringEncoding]) {
RTCLogError(@"Failed to convert field trial string.");
return;
}
webrtc::field_trial::InitFieldTrialsFromString(gFieldTrialInitString.get());
}