1 /*
2  *  Copyright 2018 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 RTC_BASE_EXPERIMENTS_CPU_SPEED_EXPERIMENT_H_
12 #define RTC_BASE_EXPERIMENTS_CPU_SPEED_EXPERIMENT_H_
13 
14 #include <vector>
15 
16 #include "absl/types/optional.h"
17 
18 namespace webrtc {
19 
20 class CpuSpeedExperiment {
21  public:
22   struct Config {
23     bool operator==(const Config& o) const {
24       return pixels == o.pixels && cpu_speed == o.cpu_speed;
25     }
26 
27     int pixels;     // The video frame size.
28     int cpu_speed;  // The |cpu_speed| to be used if the frame size is less
29                     // than or equal to |pixels|.
30   };
31 
32   // Returns the configurations from field trial on success.
33   static absl::optional<std::vector<Config>> GetConfigs();
34 
35   // Gets the cpu speed from the |configs| based on |pixels|.
36   static int GetValue(int pixels, const std::vector<Config>& configs);
37 };
38 
39 }  // namespace webrtc
40 
41 #endif  // RTC_BASE_EXPERIMENTS_CPU_SPEED_EXPERIMENT_H_
42