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1 /* | 1 /* |
2 * Copyright 2015 The WebRTC Project Authors. All rights reserved. | 2 * Copyright 2015 The WebRTC Project Authors. All rights reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
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36 - (void)updateBitrateWithCurrentByteCount:(NSInteger)byteCount { | 36 - (void)updateBitrateWithCurrentByteCount:(NSInteger)byteCount { |
37 CFTimeInterval currentTime = CACurrentMediaTime(); | 37 CFTimeInterval currentTime = CACurrentMediaTime(); |
38 if (_prevTime && (byteCount > _prevByteCount)) { | 38 if (_prevTime && (byteCount > _prevByteCount)) { |
39 _bitrate = (byteCount - _prevByteCount) * 8 / (currentTime - _prevTime); | 39 _bitrate = (byteCount - _prevByteCount) * 8 / (currentTime - _prevTime); |
40 } | 40 } |
41 _prevByteCount = byteCount; | 41 _prevByteCount = byteCount; |
42 _prevTime = currentTime; | 42 _prevTime = currentTime; |
43 } | 43 } |
44 | 44 |
45 @end | 45 @end |
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