| /* |
| * 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 <Foundation/Foundation.h> |
| |
| /** Class used to estimate bitrate based on byte count. It is expected that |
| * byte count is monotonocially increasing. This class tracks the times that |
| * byte count is updated, and measures the bitrate based on the byte difference |
| * over the interval between updates. |
| */ |
| @interface ARDBitrateTracker : NSObject |
| |
| /** The bitrate in bits per second. */ |
| @property(nonatomic, readonly) double bitrate; |
| /** The bitrate as a formatted string in bps, Kbps or Mbps. */ |
| @property(nonatomic, readonly) NSString *bitrateString; |
| |
| /** Converts the bitrate to a readable format in bps, Kbps or Mbps. */ |
| + (NSString *)bitrateStringForBitrate:(double)bitrate; |
| /** Updates the tracked bitrate with the new byte count. */ |
| - (void)updateBitrateWithCurrentByteCount:(NSInteger)byteCount; |
| |
| @end |
