diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /third_party/libwebrtc/api/units/frequency.h | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/libwebrtc/api/units/frequency.h')
-rw-r--r-- | third_party/libwebrtc/api/units/frequency.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/third_party/libwebrtc/api/units/frequency.h b/third_party/libwebrtc/api/units/frequency.h new file mode 100644 index 0000000000..06081e4c0d --- /dev/null +++ b/third_party/libwebrtc/api/units/frequency.h @@ -0,0 +1,101 @@ +/* + * Copyright (c) 2019 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_UNITS_FREQUENCY_H_ +#define API_UNITS_FREQUENCY_H_ + +#ifdef WEBRTC_UNIT_TEST +#include <ostream> // no-presubmit-check TODO(webrtc:8982) +#endif // WEBRTC_UNIT_TEST + +#include <cstdlib> +#include <limits> +#include <string> +#include <type_traits> + +#include "api/units/time_delta.h" +#include "rtc_base/units/unit_base.h" // IWYU pragma: export + +namespace webrtc { + +class Frequency final : public rtc_units_impl::RelativeUnit<Frequency> { + public: + template <typename T> + static constexpr Frequency MilliHertz(T value) { + static_assert(std::is_arithmetic<T>::value, ""); + return FromValue(value); + } + template <typename T> + static constexpr Frequency Hertz(T value) { + static_assert(std::is_arithmetic<T>::value, ""); + return FromFraction(1'000, value); + } + template <typename T> + static constexpr Frequency KiloHertz(T value) { + static_assert(std::is_arithmetic<T>::value, ""); + return FromFraction(1'000'000, value); + } + + Frequency() = delete; + + template <typename T = int64_t> + constexpr T hertz() const { + return ToFraction<1000, T>(); + } + template <typename T = int64_t> + constexpr T millihertz() const { + return ToValue<T>(); + } + + private: + friend class rtc_units_impl::UnitBase<Frequency>; + using RelativeUnit::RelativeUnit; + static constexpr bool one_sided = true; +}; + +inline constexpr Frequency operator/(int64_t nominator, + const TimeDelta& interval) { + constexpr int64_t kKiloPerMicro = 1000 * 1000000; + RTC_DCHECK_LE(nominator, std::numeric_limits<int64_t>::max() / kKiloPerMicro); + RTC_CHECK(interval.IsFinite()); + RTC_CHECK(!interval.IsZero()); + return Frequency::MilliHertz(nominator * kKiloPerMicro / interval.us()); +} + +inline constexpr TimeDelta operator/(int64_t nominator, + const Frequency& frequency) { + constexpr int64_t kMegaPerMilli = 1000000 * 1000; + RTC_DCHECK_LE(nominator, std::numeric_limits<int64_t>::max() / kMegaPerMilli); + RTC_CHECK(frequency.IsFinite()); + RTC_CHECK(!frequency.IsZero()); + return TimeDelta::Micros(nominator * kMegaPerMilli / frequency.millihertz()); +} + +inline constexpr double operator*(Frequency frequency, TimeDelta time_delta) { + return frequency.hertz<double>() * time_delta.seconds<double>(); +} +inline constexpr double operator*(TimeDelta time_delta, Frequency frequency) { + return frequency * time_delta; +} + +std::string ToString(Frequency value); +inline std::string ToLogString(Frequency value) { + return ToString(value); +} + +#ifdef WEBRTC_UNIT_TEST +inline std::ostream& operator<<( // no-presubmit-check TODO(webrtc:8982) + std::ostream& stream, // no-presubmit-check TODO(webrtc:8982) + Frequency value) { + return stream << ToString(value); +} +#endif // WEBRTC_UNIT_TEST + +} // namespace webrtc +#endif // API_UNITS_FREQUENCY_H_ |