1 /*
2  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
3  *
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
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #ifndef WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_INCLUDE_BWE_DEFINES_H_
12 #define WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_INCLUDE_BWE_DEFINES_H_
13 
14 #include "webrtc/typedefs.h"
15 
16 #define BWE_MAX(a, b) ((a) > (b) ? (a) : (b))
17 #define BWE_MIN(a, b) ((a) < (b) ? (a) : (b))
18 
19 namespace webrtc {
20 
21 static const int64_t kBitrateWindowMs = 1000;
22 
23 enum BandwidthUsage {
24   kBwNormal = 0,
25   kBwUnderusing = 1,
26   kBwOverusing = 2,
27 };
28 
29 enum RateControlState { kRcHold, kRcIncrease, kRcDecrease };
30 
31 enum RateControlRegion { kRcNearMax, kRcAboveMax, kRcMaxUnknown };
32 
33 struct RateControlInput {
RateControlInputRateControlInput34   RateControlInput(BandwidthUsage bw_state,
35                    uint32_t incoming_bitrate,
36                    double noise_var)
37       : bw_state(bw_state),
38         incoming_bitrate(incoming_bitrate),
39         noise_var(noise_var) {}
40 
41   BandwidthUsage bw_state;
42   uint32_t incoming_bitrate;
43   double noise_var;
44 };
45 }  // namespace webrtc
46 
47 #endif  // WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_INCLUDE_BWE_DEFINES_H_
48