b5c48b97f6
Ongoing fixes and improvements, transient suppressor is gone. Also, dropping isac because it doesn't seem to be useful, and is just build system deadweight now. Upstream references: Version: 131.0.6778.200 WebRTC: 79aff54b0fa9238ce3518dd9eaf9610cd6f22e82 Chromium: 2a19506ad24af755f2a215a4c61f775393e0db42
101 lines
3.1 KiB
C++
101 lines
3.1 KiB
C++
/*
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* Copyright (c) 2019 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 API_UNITS_FREQUENCY_H_
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#define API_UNITS_FREQUENCY_H_
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#include <cstdint>
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#include <cstdlib>
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#include <limits>
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#include <string>
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#include <type_traits>
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#include "api/units/time_delta.h"
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#include "rtc_base/checks.h"
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#include "rtc_base/system/rtc_export.h"
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#include "rtc_base/units/unit_base.h" // IWYU pragma: export
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namespace webrtc {
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class Frequency final : public rtc_units_impl::RelativeUnit<Frequency> {
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public:
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template <typename T>
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static constexpr Frequency MilliHertz(T value) {
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static_assert(std::is_arithmetic<T>::value, "");
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return FromValue(value);
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}
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template <typename T>
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static constexpr Frequency Hertz(T value) {
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static_assert(std::is_arithmetic<T>::value, "");
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return FromFraction(1'000, value);
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}
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template <typename T>
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static constexpr Frequency KiloHertz(T value) {
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static_assert(std::is_arithmetic<T>::value, "");
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return FromFraction(1'000'000, value);
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}
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Frequency() = delete;
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template <typename Sink>
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friend void AbslStringify(Sink& sink, Frequency value);
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template <typename T = int64_t>
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constexpr T hertz() const {
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return ToFraction<1000, T>();
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}
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template <typename T = int64_t>
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constexpr T millihertz() const {
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return ToValue<T>();
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}
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private:
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friend class rtc_units_impl::UnitBase<Frequency>;
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using RelativeUnit::RelativeUnit;
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static constexpr bool one_sided = true;
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};
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inline constexpr Frequency operator/(int64_t nominator,
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const TimeDelta& interval) {
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constexpr int64_t kKiloPerMicro = 1000 * 1000000;
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RTC_DCHECK_LE(nominator, std::numeric_limits<int64_t>::max() / kKiloPerMicro);
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RTC_CHECK(interval.IsFinite());
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RTC_CHECK(!interval.IsZero());
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return Frequency::MilliHertz(nominator * kKiloPerMicro / interval.us());
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}
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inline constexpr TimeDelta operator/(int64_t nominator,
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const Frequency& frequency) {
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constexpr int64_t kMegaPerMilli = 1000000 * 1000;
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RTC_DCHECK_LE(nominator, std::numeric_limits<int64_t>::max() / kMegaPerMilli);
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RTC_CHECK(frequency.IsFinite());
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RTC_CHECK(!frequency.IsZero());
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return TimeDelta::Micros(nominator * kMegaPerMilli / frequency.millihertz());
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}
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inline constexpr double operator*(Frequency frequency, TimeDelta time_delta) {
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return frequency.hertz<double>() * time_delta.seconds<double>();
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}
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inline constexpr double operator*(TimeDelta time_delta, Frequency frequency) {
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return frequency * time_delta;
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}
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RTC_EXPORT std::string ToString(Frequency value);
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inline std::string ToLogString(Frequency value) {
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return ToString(value);
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}
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template <typename Sink>
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void AbslStringify(Sink& sink, Frequency value) {
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sink.Append(ToString(value));
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}
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} // namespace webrtc
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#endif // API_UNITS_FREQUENCY_H_
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