Update iOS AppRTCDemo to use the updated Objective-C API.

webrtc/examples/objc/AppRTCDemo/ARDStatsBuilder.m

 /*
  *  Copyright 2015 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 "ARDStatsBuilder.h"
 
-#import "RTCPair.h"
-#import "RTCStatsReport.h"
+#import "webrtc/api/objc/RTCStatsReport.h"
 
 #import "ARDBitrateTracker.h"
 #import "ARDUtilities.h"
 
 @implementation ARDStatsBuilder {
   // Connection stats.
   NSString *_connRecvBitrate;
   NSString *_connRtt;
   NSString *_connSendBitrate;
   NSString *_localCandType;
@@ skipping 118 matching lines @@
   } else if ([reportType isEqualToString:@"VideoBwe"]) {
     [self parseBweStatsReport:statsReport];
   } else if ([reportType isEqualToString:@"googCandidatePair"]) {
     [self parseConnectionStatsReport:statsReport];
   }
 }
 
 #pragma mark - Private
 
 - (void)parseBweStatsReport:(RTCStatsReport *)statsReport {
-  for (RTCPair *pair in statsReport.values) {
-    NSString *key = pair.key;
-    NSString *value = pair.value;
+  [statsReport.values enumerateKeysAndObjectsUsingBlock:^(
+      NSString *key, NSString *value, BOOL *stop) {
     if ([key isEqualToString:@"googAvailableSendBandwidth"]) {
       _availableSendBw =
           [ARDBitrateTracker bitrateStringForBitrate:value.doubleValue];
     } else if ([key isEqualToString:@"googAvailableReceiveBandwidth"]) {
       _availableRecvBw =
           [ARDBitrateTracker bitrateStringForBitrate:value.doubleValue];
     } else if ([key isEqualToString:@"googActualEncBitrate"]) {
       _actualEncBitrate =
           [ARDBitrateTracker bitrateStringForBitrate:value.doubleValue];
     } else if ([key isEqualToString:@"googTargetEncBitrate"]) {
       _targetEncBitrate =
           [ARDBitrateTracker bitrateStringForBitrate:value.doubleValue];
     }
-  }
+  }];
 }
 
 - (void)parseConnectionStatsReport:(RTCStatsReport *)statsReport {
-  NSDictionary *values = [self dictionaryForReport:statsReport];
-  NSString *activeConnection = [values[@"googActiveConnection"] firstObject];
+  NSString *activeConnection = statsReport.values[@"googActiveConnection"];
   if (![activeConnection isEqualToString:@"true"]) {
     return;
   }
-  for (RTCPair *pair in statsReport.values) {
-    NSString *key = pair.key;
-    NSString *value = pair.value;
+  [statsReport.values enumerateKeysAndObjectsUsingBlock:^(
+      NSString *key, NSString *value, BOOL *stop) {
     if ([key isEqualToString:@"googRtt"]) {
       _connRtt = value;
     } else if ([key isEqualToString:@"googLocalCandidateType"]) {
       _localCandType = value;
     } else if ([key isEqualToString:@"googRemoteCandidateType"]) {
       _remoteCandType = value;
     } else if ([key isEqualToString:@"googTransportType"]) {
       _transportType = value;
     } else if ([key isEqualToString:@"bytesReceived"]) {
       NSInteger byteCount = value.integerValue;
       [_connRecvBitrateTracker updateBitrateWithCurrentByteCount:byteCount];
       _connRecvBitrate = _connRecvBitrateTracker.bitrateString;
     } else if ([key isEqualToString:@"bytesSent"]) {
       NSInteger byteCount = value.integerValue;
       [_connSendBitrateTracker updateBitrateWithCurrentByteCount:byteCount];
       _connSendBitrate = _connSendBitrateTracker.bitrateString;
     }
-  }
+  }];
 }
 
 - (void)parseSendSsrcStatsReport:(RTCStatsReport *)statsReport {
-  NSDictionary *values = [self dictionaryForReport:statsReport];
-  NSString *trackId = [values[@"googTrackId"] firstObject];
+  NSDictionary *values = statsReport.values;
+  NSString *trackId = values[@"googTrackId"];
   if (trackId.length && [trackId hasPrefix:@"ARDAMSv0"]) {
     // Video track.
     [self parseVideoSendStatsReport:statsReport];
   } else {
     // Audio track.
     [self parseAudioSendStatsReport:statsReport];
   }
 }
 
 - (void)parseAudioSendStatsReport:(RTCStatsReport *)statsReport {
-  for (RTCPair *pair in statsReport.values) {
-    NSString *key = pair.key;
-    NSString *value = pair.value;
+  [statsReport.values enumerateKeysAndObjectsUsingBlock:^(
+      NSString *key, NSString *value, BOOL *stop) {
     if ([key isEqualToString:@"googCodecName"]) {
       _audioSendCodec = value;
     } else if ([key isEqualToString:@"bytesSent"]) {
       NSInteger byteCount = value.integerValue;
       [_audioSendBitrateTracker updateBitrateWithCurrentByteCount:byteCount];
       _audioSendBitrate = _audioSendBitrateTracker.bitrateString;
     }
-  }
+  }];
 }
 
 - (void)parseVideoSendStatsReport:(RTCStatsReport *)statsReport {
-  for (RTCPair *pair in statsReport.values) {
-    NSString *key = pair.key;
-    NSString *value = pair.value;
+  [statsReport.values enumerateKeysAndObjectsUsingBlock:^(
+      NSString *key, NSString *value, BOOL *stop) {
     if ([key isEqualToString:@"googCodecName"]) {
       _videoSendCodec = value;
     } else if ([key isEqualToString:@"googFrameHeightInput"]) {
       _videoInputHeight = value;
     } else if ([key isEqualToString:@"googFrameWidthInput"]) {
       _videoInputWidth = value;
     } else if ([key isEqualToString:@"googFrameRateInput"]) {
       _videoInputFps = value;
     } else if ([key isEqualToString:@"googFrameHeightSent"]) {
       _videoSendHeight = value;
     } else if ([key isEqualToString:@"googFrameWidthSent"]) {
       _videoSendWidth = value;
     } else if ([key isEqualToString:@"googFrameRateSent"]) {
       _videoSendFps = value;
     } else if ([key isEqualToString:@"googAvgEncodeMs"]) {
       _videoEncodeMs = value;
     } else if ([key isEqualToString:@"bytesSent"]) {
       NSInteger byteCount = value.integerValue;
       [_videoSendBitrateTracker updateBitrateWithCurrentByteCount:byteCount];
       _videoSendBitrate = _videoSendBitrateTracker.bitrateString;
     }
-  }
+  }];
 }
 
 - (void)parseRecvSsrcStatsReport:(RTCStatsReport *)statsReport {
-  NSDictionary *values = [self dictionaryForReport:statsReport];
-  NSString *transportId = [values[@"transportId"] firstObject];
-  if ([values[@"googFrameWidthReceived"] firstObject]) {
+  NSDictionary *values = statsReport.values;
+  if (values[@"googFrameWidthReceived"]) {
     [self parseVideoRecvStatsReport:statsReport];
   } else {
     [self parseAudioRecvStatsReport:statsReport];
   }
 }
 
 - (void)parseAudioRecvStatsReport:(RTCStatsReport *)statsReport {
-  for (RTCPair *pair in statsReport.values) {
-    NSString *key = pair.key;
-    NSString *value = pair.value;
+  [statsReport.values enumerateKeysAndObjectsUsingBlock:^(
+      NSString *key, NSString *value, BOOL *stop) {
     if ([key isEqualToString:@"googCodecName"]) {
       _audioRecvCodec = value;
     } else if ([key isEqualToString:@"bytesReceived"]) {
       NSInteger byteCount = value.integerValue;
       [_audioRecvBitrateTracker updateBitrateWithCurrentByteCount:byteCount];
       _audioRecvBitrate = _audioRecvBitrateTracker.bitrateString;
     } else if ([key isEqualToString:@"googSpeechExpandRate"]) {
       _audioExpandRate = value;
     } else if ([key isEqualToString:@"googCurrentDelayMs"]) {
       _audioCurrentDelay = value;
     }
-  }
+  }];
 }
 
 - (void)parseVideoRecvStatsReport:(RTCStatsReport *)statsReport {
-  for (RTCPair *pair in statsReport.values) {
-    NSString *key = pair.key;
-    NSString *value = pair.value;
+  [statsReport.values enumerateKeysAndObjectsUsingBlock:^(
+      NSString *key, NSString *value, BOOL *stop) {
     if ([key isEqualToString:@"googFrameHeightReceived"]) {
       _videoRecvHeight = value;
     } else if ([key isEqualToString:@"googFrameWidthReceived"]) {
       _videoRecvWidth = value;
     } else if ([key isEqualToString:@"googFrameRateReceived"]) {
       _videoRecvFps = value;
     } else if ([key isEqualToString:@"googFrameRateDecoded"]) {
       _videoDecodedFps = value;
     } else if ([key isEqualToString:@"googFrameRateOutput"]) {
       _videoOutputFps = value;
     } else if ([key isEqualToString:@"googDecodeMs"]) {
       _videoDecodeMs = value;
     } else if ([key isEqualToString:@"bytesReceived"]) {
       NSInteger byteCount = value.integerValue;
       [_videoRecvBitrateTracker updateBitrateWithCurrentByteCount:byteCount];
       _videoRecvBitrate = _videoRecvBitrateTracker.bitrateString;
     }
-  }
-}
-
-- (NSDictionary *)dictionaryForReport:(RTCStatsReport *)statsReport {
-  NSMutableDictionary *dict = [NSMutableDictionary dictionary];
-  for (RTCPair *pair in statsReport.values) {
-    NSMutableArray *values = dict[pair.key];
-    if (!values) {
-      values = [NSMutableArray arrayWithCapacity:1];
-      dict[pair.key] = values;
-    }
-    [values addObject:pair.value];
-  }
-  return dict;
+  }];
 }
 
 @end