56 lines
1.7 KiB
C
56 lines
1.7 KiB
C
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/*
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* Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef CALL_BITRATE_CONSTRAINTS_H_
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#define CALL_BITRATE_CONSTRAINTS_H_
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#include <algorithm>
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#include "api/optional.h"
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namespace webrtc {
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// TODO(srte): BitrateConstraints and BitrateConstraintsMask should be merged.
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// Both represent the same kind data, but are using different default
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// initializer and representation of unset values.
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struct BitrateConstraints {
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int min_bitrate_bps = 0;
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int start_bitrate_bps = kDefaultStartBitrateBps;
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int max_bitrate_bps = -1;
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private:
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static constexpr int kDefaultStartBitrateBps = 300000;
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};
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// BitrateConstraintsMask is used for the local client's bitrate preferences.
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// Semantically it carries the same kind of information as BitrateConstraints,
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// but is used in a slightly different way.
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struct BitrateConstraintsMask {
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BitrateConstraintsMask();
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~BitrateConstraintsMask();
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BitrateConstraintsMask(const BitrateConstraintsMask&);
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rtc::Optional<int> min_bitrate_bps;
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rtc::Optional<int> start_bitrate_bps;
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rtc::Optional<int> max_bitrate_bps;
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};
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// Like std::min, but considers non-positive values to be unset.
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template <typename T>
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static T MinPositive(T a, T b) {
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if (a <= 0) {
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return b;
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}
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if (b <= 0) {
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return a;
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}
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return std::min(a, b);
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}
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} // namespace webrtc
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#endif // CALL_BITRATE_CONSTRAINTS_H_
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