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https://github.com/mollyim/webrtc.git
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6b3d18164b
Bug: None Change-Id: I38d2e5495ddfe0b9f1493efc38ef7df95e7fd207 Reviewed-on: https://webrtc-review.googlesource.com/c/111258 Reviewed-by: Mirta Dvornicic <mirtad@webrtc.org> Reviewed-by: Kári Helgason <kthelgason@webrtc.org> Commit-Queue: Kári Helgason <kthelgason@webrtc.org> Cr-Commit-Position: refs/heads/master@{#25798}
54 lines
2.4 KiB
Text
54 lines
2.4 KiB
Text
/*
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* Copyright 2016 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#import "RTCFieldTrials.h"
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#include <memory>
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#import "base/RTCLogging.h"
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#include "system_wrappers/include/field_trial.h"
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NSString * const kRTCFieldTrialAudioSendSideBweKey = @"WebRTC-Audio-SendSideBwe";
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NSString * const kRTCFieldTrialAudioSendSideBweForVideoKey = @"WebRTC-Audio-SendSideBwe-For-Video";
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NSString * const kRTCFieldTrialAudioForceNoTWCCKey = @"WebRTC-Audio-ForceNoTWCC";
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NSString * const kRTCFieldTrialAudioForceABWENoTWCCKey = @"WebRTC-Audio-ABWENoTWCC";
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NSString * const kRTCFieldTrialSendSideBweWithOverheadKey = @"WebRTC-SendSideBwe-WithOverhead";
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NSString * const kRTCFieldTrialFlexFec03AdvertisedKey = @"WebRTC-FlexFEC-03-Advertised";
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NSString * const kRTCFieldTrialFlexFec03Key = @"WebRTC-FlexFEC-03";
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NSString * const kRTCFieldTrialH264HighProfileKey = @"WebRTC-H264HighProfile";
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NSString * const kRTCFieldTrialMinimizeResamplingOnMobileKey =
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@"WebRTC-Audio-MinimizeResamplingOnMobile";
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NSString * const kRTCFieldTrialEnabledValue = @"Enabled";
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static std::unique_ptr<char[]> gFieldTrialInitString;
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void RTCInitFieldTrialDictionary(NSDictionary<NSString *, NSString *> *fieldTrials) {
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if (!fieldTrials) {
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RTCLogWarning(@"No fieldTrials provided.");
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return;
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}
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// Assemble the keys and values into the field trial string.
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// We don't perform any extra format checking. That should be done by the underlying WebRTC calls.
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NSMutableString *fieldTrialInitString = [NSMutableString string];
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for (NSString *key in fieldTrials) {
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NSString *fieldTrialEntry = [NSString stringWithFormat:@"%@/%@/", key, fieldTrials[key]];
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[fieldTrialInitString appendString:fieldTrialEntry];
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}
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size_t len = fieldTrialInitString.length + 1;
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gFieldTrialInitString.reset(new char[len]);
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if (![fieldTrialInitString getCString:gFieldTrialInitString.get()
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maxLength:len
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encoding:NSUTF8StringEncoding]) {
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RTCLogError(@"Failed to convert field trial string.");
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return;
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}
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webrtc::field_trial::InitFieldTrialsFromString(gFieldTrialInitString.get());
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}
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