Objective C API to read and set RtpParameters

webrtc/api/objc/RTCPeerConnection.h

Index: webrtc/api/objc/RTCPeerConnection.h
diff --git a/webrtc/api/objc/RTCPeerConnection.h b/webrtc/api/objc/RTCPeerConnection.h
index e0f9b78e8ebb0ac1b41234e8501595ffe1f201cd..471a8deef02616d1278e53e3a30285bc12aada8b 100644
--- a/webrtc/api/objc/RTCPeerConnection.h
+++ b/webrtc/api/objc/RTCPeerConnection.h
@@ -18,6 +18,7 @@
 @class RTCMediaStream;
 @class RTCMediaStreamTrack;
 @class RTCPeerConnectionFactory;
+@class RTCRtpSender;
 @class RTCSessionDescription;
 @class RTCStatsReport;
 
@@ -115,6 +116,12 @@ typedef NS_ENUM(NSInteger, RTCStatsOutputLevel) {
 @property(nonatomic, readonly) RTCIceConnectionState iceConnectionState;
 @property(nonatomic, readonly) RTCIceGatheringState iceGatheringState;
 
+/** Gets all RTCRtpSenders associated with this peer connection.
+ *  Note: reading this property returns different instances of RTCRtpSender.
+ *  Use isEqual: instead of == to compare RTCRtpSender instances.
+ */
+@property(nonatomic, readonly) NSArray<RTCRtpSender *> *senders;
+
 - (instancetype)init NS_UNAVAILABLE;
 
 /** Sets the PeerConnection's global configuration to |configuration|.