340e3fd59f
- The "flexfec-03" codec is advertised in the SDP whenever the "WebRTC-FlexFEC-03-Advertised" field trial is enabled. - Sending FlexFEC packets is enabled whenever the "flexfec-03" codec is negotiated, and the "WebRTC-FlexFEC-03" field trial is enabled. After this CL, the number of calls to WebRtcVideoChannel2::WebRtcVideoSendStream::SetCodec during renegotiation will be reduced for cases when only one endpoint has the "WebRTC-FlexFEC-03" field trial enabled. BUG=webrtc:5654 Review-Url: https://codereview.webrtc.org/2716733005 Cr-Commit-Position: refs/heads/master@{#16925}
43 lines
1.9 KiB
Objective-C
43 lines
1.9 KiB
Objective-C
/*
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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 <Foundation/Foundation.h>
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#import <WebRTC/RTCMacros.h>
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/** The only valid value for the following if set is kRTCFieldTrialEnabledValue. */
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RTC_EXTERN NSString * const kRTCFieldTrialAudioSendSideBweKey;
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RTC_EXTERN NSString * const kRTCFieldTrialSendSideBweWithOverheadKey;
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RTC_EXTERN NSString * const kRTCFieldTrialFlexFec03AdvertisedKey;
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RTC_EXTERN NSString * const kRTCFieldTrialFlexFec03Key;
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RTC_EXTERN NSString * const kRTCFieldTrialImprovedBitrateEstimateKey;
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RTC_EXTERN NSString * const kRTCFieldTrialH264HighProfileKey;
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/** The valid value for field trials above. */
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RTC_EXTERN NSString * const kRTCFieldTrialEnabledValue;
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/** Use a string returned by RTCFieldTrialMedianSlopeFilterValue as the value. */
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RTC_EXTERN NSString * const kRTCFieldTrialMedianSlopeFilterKey;
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RTC_EXTERN NSString *RTCFieldTrialMedianSlopeFilterValue(
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size_t windowSize, double thresholdGain);
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/** Use a string returned by RTCFieldTrialTrendlineFilterValue as the value. */
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RTC_EXTERN NSString * const kRTCFieldTrialTrendlineFilterKey;
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/** Returns a valid value for kRTCFieldTrialTrendlineFilterKey. */
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RTC_EXTERN NSString *RTCFieldTrialTrendlineFilterValue(
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size_t windowSize, double smoothingCoeff, double thresholdGain);
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/** Initialize field trials using a dictionary mapping field trial keys to their values. See above
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* for valid keys and values.
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* Must be called before any other call into WebRTC. See:
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* webrtc/system_wrappers/include/field_trial_default.h
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*/
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RTC_EXTERN void RTCInitFieldTrialDictionary(NSDictionary<NSString *, NSString *> *fieldTrials);
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