Objective C API to read and set RtpParameters

webrtc/api/objc/RTCRtpSender.mm

Index: webrtc/api/objc/RTCRtpSender.mm
diff --git a/webrtc/api/objc/RTCRtpSender.mm b/webrtc/api/objc/RTCRtpSender.mm
new file mode 100644
index 0000000000000000000000000000000000000000..1ad6761b146f45d8bef3f9710963053dc24e0807
--- /dev/null
+++ b/webrtc/api/objc/RTCRtpSender.mm
@@ -0,0 +1,50 @@
+/*
+ *  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 "RTCRtpSender.h"
+
+#import "webrtc/api/objc/RTCRtpParameters+Private.h"
+#import "webrtc/api/objc/RTCRtpSender+Private.h"
+#import "webrtc/api/objc/RTCMediaStreamTrack+Private.h"
+
+#include "webrtc/api/mediastreaminterface.h"
+#include "webrtc/api/rtpsenderinterface.h"
+
+@implementation RTCRtpSender {
+  rtc::scoped_refptr<webrtc::RtpSenderInterface> _nativeRtpSender;
+}
+
+- (instancetype)initWithNativeRtpSender:
+    (rtc::scoped_refptr<webrtc::RtpSenderInterface>)nativeRtpSender {
+  if (self = [super init]) {
+    _nativeRtpSender = nativeRtpSender;
+  }
+  return self;
+}
+
+- (RTCRtpParameters *)parameters {
+  return [[RTCRtpParameters alloc]
+      initWithNativeParameters:_nativeRtpSender->GetParameters()];
+}
+
+- (BOOL)setParameters:(RTCRtpParameters *)parameters {
+  return _nativeRtpSender->SetParameters(parameters.nativeParameters);
+}
+
+- (RTCMediaStreamTrack *)track {
+  rtc::scoped_refptr<webrtc::MediaStreamTrackInterface> nativeTrack(
+    _nativeRtpSender->track());
+  if (nativeTrack) {
+    return [[RTCMediaStreamTrack alloc] initWithNativeTrack:nativeTrack];
+  }
+  return nil;
+}
+
+@end