59 lines
2.4 KiB
C++
59 lines
2.4 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 <queue>
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#include <oboe/Oboe.h>
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#include <kernel/types/KEvent.h>
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#include <audio/track.h>
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#include "common.h"
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namespace skyline::audio {
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/**
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* @brief The Audio class is used to mix audio from all tracks
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*/
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class Audio : public oboe::AudioStreamCallback {
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private:
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const DeviceState &state; //!< The state of the device
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oboe::AudioStreamBuilder builder; //!< The audio stream builder, used to open
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oboe::ManagedStream outputStream; //!< The output oboe audio stream
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std::vector<std::shared_ptr<audio::AudioTrack>> audioTracks; //!< A vector of shared_ptr to every open audio track
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Mutex trackLock; //!< This mutex is used to ensure that audioTracks isn't modified while it is being used
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public:
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Audio(const DeviceState &state);
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/**
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* @brief Opens a new track that can be used to play sound
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* @param channelCount The amount channels that are present in the track
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* @param sampleRate The sample rate of the track
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* @param releaseCallback The callback to call when a buffer has been released
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* @return A shared pointer to a new AudioTrack object
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*/
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std::shared_ptr<AudioTrack> OpenTrack(const int channelCount, const int sampleRate, const std::function<void()> &releaseCallback);
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/**
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* @brief Closes a track and frees its data
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* @param track The track to close
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*/
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void CloseTrack(std::shared_ptr<AudioTrack> &track);
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/**
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* @brief The callback oboe uses to get audio sample data
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* @param audioStream The audio stream we are being called by
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* @param audioData The raw audio sample data
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* @param numFrames The amount of frames the sample data needs to contain
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*/
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oboe::DataCallbackResult onAudioReady(oboe::AudioStream *audioStream, void *audioData, int32_t numFrames);
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/**
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* @brief The callback oboe uses to notify the application about stream closure
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* @param audioStream The audio stream we are being called by
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* @param error The error due to which the stream is being closed
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*/
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void onErrorAfterClose(oboe::AudioStream *audioStream, oboe::Result error);
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};
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}
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