63 lines
2.5 KiB
C++
63 lines
2.5 KiB
C++
// SPDX-License-Identifier: MPL-2.0
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// Copyright © 2020 Skyline Team and Contributors (https://github.com/skyline-emu/)
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#pragma once
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#include <oboe/Oboe.h>
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#include "circular_buffer.h"
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namespace skyline {
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namespace constant {
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constexpr auto SampleRate = 48000; //!< The common sampling rate to use for audio output
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constexpr auto ChannelCount = 2; //!< The common amount of channels to use for audio output
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constexpr auto PcmFormat = oboe::AudioFormat::I16; //!< The common PCM data format to use for audio output
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constexpr size_t MixBufferSize = 960; //!< The size of the mix buffer by default
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};
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namespace audio {
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/**
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* @brief The available PCM stream formats
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*/
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enum class AudioFormat : u8 {
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Invalid = 0, //!< An invalid PCM format
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Int8 = 1, //!< 8 bit integer PCM
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Int16 = 2, //!< 16 bit integer PCM
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Int24 = 3, //!< 24 bit integer PCM
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Int32 = 4, //!< 32 bit integer PCM
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Float = 5, //!< Floating point PCM
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ADPCM = 6 //!< Adaptive differential PCM
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};
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/**
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* @brief The state of an audio track
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*/
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enum class AudioOutState : u8 {
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Started = 0, //!< Stream is started and is playing
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Stopped = 1, //!< Stream is stopped, there are no samples left to play
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Paused = 2 //!< Stream is paused, some samples may not have been played yet
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};
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/**
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* @brief This stores information about pushed buffers
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*/
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struct BufferIdentifier {
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u64 tag; //!< The tag of the buffer
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u64 finalSample; //!< The final sample this buffer will be played in
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bool released; //!< If the buffer has been released
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};
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/**
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* @brief This saturates the specified value according to the numeric limits of Out
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* @tparam Out The return value type and the numeric limit clamp
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* @tparam Intermediate The intermediate type that is converted to from In before clamping
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* @tparam In The input value type
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* @param value The value to saturate
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* @return The saturated value
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*/
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template<typename Out, typename Intermediate, typename In>
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inline Out Saturate(In value) {
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return static_cast<Out>(std::clamp(static_cast<Intermediate>(value), static_cast<Intermediate>(std::numeric_limits<Out>::min()), static_cast<Intermediate>(std::numeric_limits<Out>::max())));
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}
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}
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}
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