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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 <Foundation/Foundation.h>
#import "RTCMacros.h"
#import "RTCRtcpParameters.h"
#import "RTCRtpCodecParameters.h"
#import "RTCRtpEncodingParameters.h"
#import "RTCRtpHeaderExtension.h"
NS_ASSUME_NONNULL_BEGIN
/** Corresponds to webrtc::DegradationPreference. */
typedef NS_ENUM(NSInteger, RTCDegradationPreference) {
RTCDegradationPreferenceDisabled,
RTCDegradationPreferenceMaintainFramerate,
RTCDegradationPreferenceMaintainResolution,
RTCDegradationPreferenceBalanced
};
RTC_OBJC_EXPORT
@interface RTC_OBJC_TYPE (RTCRtpParameters) : NSObject
/** A unique identifier for the last set of parameters applied. */
@property(nonatomic, copy) NSString *transactionId;
/** Parameters used for RTCP. */
@property(nonatomic, readonly, copy) RTC_OBJC_TYPE(RTCRtcpParameters) * rtcp;
/** An array containing parameters for RTP header extensions. */
@property(nonatomic, readonly, copy)
NSArray<RTC_OBJC_TYPE(RTCRtpHeaderExtension) *> *headerExtensions;
/** The currently active encodings in the order of preference. */
@property(nonatomic, copy) NSArray<RTC_OBJC_TYPE(RTCRtpEncodingParameters) *> *encodings;
/** The negotiated set of send codecs in order of preference. */
@property(nonatomic, copy) NSArray<RTC_OBJC_TYPE(RTCRtpCodecParameters) *> *codecs;
/**
* Degradation preference in case of CPU adaptation or constrained bandwidth.
* If nil, implementation default degradation preference will be used.
*/
@property(nonatomic, copy, nullable) NSNumber *degradationPreference;
- (instancetype)init;
@end
NS_ASSUME_NONNULL_END
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