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Side by Side Diff: webrtc/sdk/objc/Framework/Classes/RTCFieldTrials.mm

Issue 2890513002: Revert of Split iOS sdk in to separate targets (Closed)
Patch Set: Created 3 years, 7 months ago
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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 "WebRTC/RTCFieldTrials.h"
12
13 #include <memory>
14
15 #import "WebRTC/RTCLogging.h"
16
17 // Adding 'nogncheck' to disable the gn include headers check.
18 // We don't want to depend on 'system_wrappers:field_trial_default' because
19 // clients should be able to provide their own implementation.
20 #include "webrtc/system_wrappers/include/field_trial_default.h" // nogncheck
21
22 NSString * const kRTCFieldTrialAudioSendSideBweKey = @"WebRTC-Audio-SendSideBwe" ;
23 NSString * const kRTCFieldTrialSendSideBweWithOverheadKey = @"WebRTC-SendSideBwe -WithOverhead";
24 NSString * const kRTCFieldTrialFlexFec03AdvertisedKey = @"WebRTC-FlexFEC-03-Adve rtised";
25 NSString * const kRTCFieldTrialFlexFec03Key = @"WebRTC-FlexFEC-03";
26 NSString * const kRTCFieldTrialImprovedBitrateEstimateKey = @"WebRTC-ImprovedBit rateEstimate";
27 NSString * const kRTCFieldTrialMedianSlopeFilterKey = @"WebRTC-BweMedianSlopeFil ter";
28 NSString * const kRTCFieldTrialTrendlineFilterKey = @"WebRTC-BweTrendlineFilter" ;
29 NSString * const kRTCFieldTrialH264HighProfileKey = @"WebRTC-H264HighProfile";
30 NSString * const kRTCFieldTrialEnabledValue = @"Enabled";
31
32 static std::unique_ptr<char[]> gFieldTrialInitString;
33
34 NSString *RTCFieldTrialMedianSlopeFilterValue(
35 size_t windowSize, double thresholdGain) {
36 NSString *format = @"Enabled-%zu,%lf";
37 return [NSString stringWithFormat:format, windowSize, thresholdGain];
38 }
39
40 NSString *RTCFieldTrialTrendlineFilterValue(
41 size_t windowSize, double smoothingCoeff, double thresholdGain) {
42 NSString *format = @"Enabled-%zu,%lf,%lf";
43 return [NSString stringWithFormat:format, windowSize, smoothingCoeff, threshol dGain];
44 }
45
46 void RTCInitFieldTrialDictionary(NSDictionary<NSString *, NSString *> *fieldTria ls) {
47 if (!fieldTrials) {
48 RTCLogWarning(@"No fieldTrials provided.");
49 return;
50 }
51 // Assemble the keys and values into the field trial string.
52 // We don't perform any extra format checking. That should be done by the unde rlying WebRTC calls.
53 NSMutableString *fieldTrialInitString = [NSMutableString string];
54 for (NSString *key in fieldTrials) {
55 NSString *fieldTrialEntry = [NSString stringWithFormat:@"%@/%@/", key, field Trials[key]];
56 [fieldTrialInitString appendString:fieldTrialEntry];
57 }
58 size_t len = fieldTrialInitString.length + 1;
59 gFieldTrialInitString.reset(new char[len]);
60 if (![fieldTrialInitString getCString:gFieldTrialInitString.get()
61 maxLength:len
62 encoding:NSUTF8StringEncoding]) {
63 RTCLogError(@"Failed to convert field trial string.");
64 return;
65 }
66 webrtc::field_trial::InitFieldTrialsFromString(gFieldTrialInitString.get());
67 }
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