| /* |
| * Copyright (c) 2011 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. |
| */ |
| |
| #include "jitter_buffer_common.h" |
| |
| #include <cstdlib> |
| |
| namespace webrtc { |
| |
| WebRtc_UWord32 LatestTimestamp(WebRtc_UWord32 timestamp1, |
| WebRtc_UWord32 timestamp2, |
| bool* has_wrapped) { |
| bool wrap = (timestamp2 < 0x0000ffff && timestamp1 > 0xffff0000) || |
| (timestamp2 > 0xffff0000 && timestamp1 < 0x0000ffff); |
| if (has_wrapped != NULL) |
| *has_wrapped = wrap; |
| if (timestamp1 > timestamp2 && !wrap) |
| return timestamp1; |
| else if (timestamp1 <= timestamp2 && !wrap) |
| return timestamp2; |
| else if (timestamp1 < timestamp2 && wrap) |
| return timestamp1; |
| else |
| return timestamp2; |
| } |
| |
| WebRtc_Word32 LatestSequenceNumber(WebRtc_Word32 seq_num1, |
| WebRtc_Word32 seq_num2, |
| bool* has_wrapped) { |
| if (seq_num1 < 0 && seq_num2 < 0) |
| return -1; |
| else if (seq_num1 < 0) |
| return seq_num2; |
| else if (seq_num2 < 0) |
| return seq_num1; |
| |
| bool wrap = (seq_num1 < 0x00ff && seq_num2 > 0xff00) || |
| (seq_num1 > 0xff00 && seq_num2 < 0x00ff); |
| |
| if (has_wrapped != NULL) |
| *has_wrapped = wrap; |
| |
| if (seq_num2 > seq_num1 && !wrap) |
| return seq_num2; |
| else if (seq_num2 <= seq_num1 && !wrap) |
| return seq_num1; |
| else if (seq_num2 < seq_num1 && wrap) |
| return seq_num2; |
| else |
| return seq_num1; |
| } |
| |
| } // namespace webrtc |
