1 /*
2  *  Copyright (c) 2019 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 #include "rtc_base/experiments/keyframe_interval_settings.h"
12 
13 #include "api/transport/field_trial_based_config.h"
14 
15 namespace webrtc {
16 
17 namespace {
18 
19 constexpr char kFieldTrialName[] = "WebRTC-KeyframeInterval";
20 
21 }  // namespace
22 
KeyframeIntervalSettings(const WebRtcKeyValueConfig * const key_value_config)23 KeyframeIntervalSettings::KeyframeIntervalSettings(
24     const WebRtcKeyValueConfig* const key_value_config)
25     : min_keyframe_send_interval_ms_("min_keyframe_send_interval_ms"),
26       max_wait_for_keyframe_ms_("max_wait_for_keyframe_ms"),
27       max_wait_for_frame_ms_("max_wait_for_frame_ms") {
28   ParseFieldTrial({&min_keyframe_send_interval_ms_, &max_wait_for_keyframe_ms_,
29                    &max_wait_for_frame_ms_},
30                   key_value_config->Lookup(kFieldTrialName));
31 }
32 
ParseFromFieldTrials()33 KeyframeIntervalSettings KeyframeIntervalSettings::ParseFromFieldTrials() {
34   FieldTrialBasedConfig field_trial_config;
35   return KeyframeIntervalSettings(&field_trial_config);
36 }
37 
MinKeyframeSendIntervalMs() const38 absl::optional<int> KeyframeIntervalSettings::MinKeyframeSendIntervalMs()
39     const {
40   return min_keyframe_send_interval_ms_.GetOptional();
41 }
42 
MaxWaitForKeyframeMs() const43 absl::optional<int> KeyframeIntervalSettings::MaxWaitForKeyframeMs() const {
44   return max_wait_for_keyframe_ms_.GetOptional();
45 }
46 
MaxWaitForFrameMs() const47 absl::optional<int> KeyframeIntervalSettings::MaxWaitForFrameMs() const {
48   return max_wait_for_frame_ms_.GetOptional();
49 }
50 
51 }  // namespace webrtc
52