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64 lines
2.6 KiB
C
64 lines
2.6 KiB
C
/**
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* @file audout.h
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* @brief Audio output service.
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* @author hexkyz
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* @copyright libnx Authors
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*/
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#pragma once
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#include "../audio/audio.h"
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typedef enum {
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AudioOutState_Started = 0,
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AudioOutState_Stopped = 1,
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} AudioOutState;
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/// Audio output buffer format
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typedef struct AudioOutBuffer AudioOutBuffer;
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struct AudioOutBuffer
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{
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AudioOutBuffer* next; ///< Next buffer. (Unused)
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void* buffer; ///< Sample buffer (aligned to 0x1000 bytes).
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u64 buffer_size; ///< Sample buffer size (aligned to 0x1000 bytes).
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u64 data_size; ///< Size of data inside the buffer.
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u64 data_offset; ///< Offset of data inside the buffer. (Unused?)
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};
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Result audoutInitialize(void);
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void audoutExit(void);
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Result audoutListAudioOuts(char *DeviceNames, u32 *DeviceNamesCount);
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Result audoutOpenAudioOut(const char *DeviceNameIn, char *DeviceNameOut, u32 SampleRateIn, u32 ChannelCountIn, u32 *SampleRateOut, u32 *ChannelCountOut, PcmFormat *Format, AudioOutState *State);
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Result audoutGetAudioOutState(AudioOutState *State);
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Result audoutStartAudioOut(void);
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Result audoutStopAudioOut(void);
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/// Submits an \ref AudioOutBuffer for playing.
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Result audoutAppendAudioOutBuffer(AudioOutBuffer *Buffer);
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Result audoutGetReleasedAudioOutBuffer(AudioOutBuffer **Buffer, u32 *ReleasedBuffersCount);
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Result audoutContainsAudioOutBuffer(AudioOutBuffer *Buffer, bool *ContainsBuffer);
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/**
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* @brief Submits an audio sample data buffer for playing and waits for it to finish playing.
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* @brief Uses \ref audoutAppendAudioOutBuffer and \ref audoutWaitPlayFinish internally.
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* @param source AudioOutBuffer containing the source sample data to be played.
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* @param released AudioOutBuffer to receive the played buffer after being released.
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*/
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Result audoutPlayBuffer(AudioOutBuffer *source, AudioOutBuffer **released);
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/**
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* @brief Waits for audio playback to finish.
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* @param released AudioOutBuffer to receive the first played buffer after being released.
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* @param released_count Pointer to receive the number of played buffers.
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* @param timeout Timeout value, use U64_MAX to wait until all finished.
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*/
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Result audoutWaitPlayFinish(AudioOutBuffer **released, u32* released_count, u64 timeout);
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/// These return the state associated with the currently active audio output device.
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u32 audoutGetSampleRate(void); ///< Supported sample rate (48000Hz).
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u32 audoutGetChannelCount(void); ///< Supported channel count (2 channels).
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PcmFormat audoutGetPcmFormat(void); ///< Supported PCM format (Int16).
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AudioOutState audoutGetDeviceState(void); ///< Initial device state (stopped).
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