Objective C API to read and set RtpParameters

webrtc/api/objc/RTCRtpEncodingParameters.mm

+/*
+ *  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 "RTCRtpEncodingParameters+Private.h"
+
+@implementation RTCRtpEncodingParameters
+
+@synthesize isActive = _isActive;
+@synthesize maxBitrateBps = _maxBitrateBps;
+
+static const int kBitrateUnlimited = -1;
+
+- (instancetype)init {
+  return [super init];
+}
+
+- (instancetype)initWithNativeParameters:
+(const webrtc::RtpEncodingParameters &)nativeParameters {

[tkchin_webrtc, 2016/04/08 22:45:47]

nit: indent 4

[skvlad, 2016/04/08 23:23:23]

Done.

+  if (self = [self init]) {
+    _isActive = nativeParameters.active;
+    // TODO(skvlad): Replace with rtc::Optional once the C++ code is updated.
+    if (nativeParameters.max_bitrate_bps != kBitrateUnlimited) {
+      _maxBitrateBps =
+      [NSNumber numberWithInt:nativeParameters.max_bitrate_bps];

[tkchin_webrtc, 2016/04/08 22:45:47]

nit: indent 4

[skvlad, 2016/04/08 23:23:23]

Done.

+    }
+  }
+  return self;
+}
+
+- (webrtc::RtpEncodingParameters)nativeParameters {
+  webrtc::RtpEncodingParameters parameters;
+  parameters.active = _isActive;
+  if (_maxBitrateBps != nil) {
+    parameters.max_bitrate_bps = _maxBitrateBps.intValue;
+  }
+  return parameters;
+}
+
+@end