738bfa7bab
Bug: webrtc:8733 Change-Id: Iaeb26e07d399f25dc18b0c4af38ed400577a5d3a Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/153220 Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Reviewed-by: Niels Moller <nisse@webrtc.org> Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Cr-Commit-Position: refs/heads/master@{#29217}
63 lines
1.9 KiB
C++
63 lines
1.9 KiB
C++
/*
|
|
* Copyright (c) 2018 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.
|
|
*/
|
|
|
|
#ifndef API_TRANSPORT_BITRATE_SETTINGS_H_
|
|
#define API_TRANSPORT_BITRATE_SETTINGS_H_
|
|
|
|
#include <algorithm>
|
|
|
|
#include "absl/types/optional.h"
|
|
#include "rtc_base/system/rtc_export.h"
|
|
|
|
namespace webrtc {
|
|
|
|
// Configuration of send bitrate. The |start_bitrate_bps| value is
|
|
// used for multiple purposes, both as a prior in the bandwidth
|
|
// estimator, and for initial configuration of the encoder. We may
|
|
// want to create separate apis for those, and use a smaller struct
|
|
// with only the min and max constraints.
|
|
struct RTC_EXPORT BitrateSettings {
|
|
BitrateSettings();
|
|
~BitrateSettings();
|
|
BitrateSettings(const BitrateSettings&);
|
|
// 0 <= min <= start <= max should hold for set parameters.
|
|
absl::optional<int> min_bitrate_bps;
|
|
absl::optional<int> start_bitrate_bps;
|
|
absl::optional<int> max_bitrate_bps;
|
|
};
|
|
|
|
// TODO(srte): BitrateConstraints and BitrateSettings should be merged.
|
|
// Both represent the same kind data, but are using different default
|
|
// initializer and representation of unset values.
|
|
struct BitrateConstraints {
|
|
int min_bitrate_bps = 0;
|
|
int start_bitrate_bps = kDefaultStartBitrateBps;
|
|
int max_bitrate_bps = -1;
|
|
|
|
private:
|
|
static constexpr int kDefaultStartBitrateBps = 300000;
|
|
};
|
|
|
|
// Like std::min, but considers non-positive values to be unset.
|
|
template <typename T>
|
|
static T MinPositive(T a, T b) {
|
|
if (a <= 0) {
|
|
return b;
|
|
}
|
|
if (b <= 0) {
|
|
return a;
|
|
}
|
|
return std::min(a, b);
|
|
}
|
|
|
|
} // namespace webrtc
|
|
|
|
#endif // API_TRANSPORT_BITRATE_SETTINGS_H_
|