Audio services

audout:u

This is "nn::audio::detail::IAudioOutManager".

Cmd	Name
0	#ListAudioOuts
1	#OpenAudioOut
2	[3.0.0+] #ListAudioOutsEx
3	[3.0.0+] #OpenAudioOutEx

ListAudioOuts

Takes a type-6 output buffer. Populates the output buffer with the available audio output devices' names and returns an u32 with the number of device names written.

OpenAudioOut

Takes a type-5 input buffer (DeviceNameIn), a type-6 output buffer (DeviceNameOut), two u32s SampleRate (must be 48000) and ChannelCount (high u16 can't be 0, official apps pass 0xCAFE0000), one u64 ClientPID, a PID and a copy-handle. Returns an #IAudioOut object and four u32s: the sample rate, channel count, PCM format, and the initial AudioOutState.

PCM format

Value	Name
0	Invalid
1	INT8
2	INT16
3	INT24
4	INT32
5	PCM Float
6	ADPCM

ListAudioOutsEx

Same as #ListAudioOuts, but takes a type-0x22 output buffer instead.

OpenAudioOutEx

Same as #OpenAudioOut, but takes a type-0x21 input buffer instead.

IAudioOut

This is "nn::audio::detail::IAudioOut".

Cmd	Name
0	#GetAudioOutState
1	#StartAudioOut
2	#StopAudioOut
3	#AppendAudioOutBuffer
4	#RegisterBufferEvent
5	#GetReleasedAudioOutBuffer
6	#ContainsAudioOutBuffer
7	[3.0.0+] #AppendAudioOutBufferEx
8	[3.0.0+] #GetReleasedAudioOutBufferEx

GetAudioOutState

Returns an u32 AudioOutState (0x00=Started, 0x01=Stopped).

StartAudioOut

Starts audio playback using data from appended buffers.

StopAudioOut

Stops audio playback.

AppendAudioOutBuffer

Takes a type-5 input buffer for sample data and a u64 which acts as a tag for the supplied buffer (official apps use the buffer's address).

The format of the input buffer is as follows:

Offset	Size	Description
0x00	8	Pointer to next buffer
0x08	8	Pointer to sample buffer
0x10	8	Capacity of sample buffer
0x18	8	Size of data in the sample buffer
0x20	8	Offset of data in the sample buffer

RegisterBufferEvent

Returns an event handle that is signalled when a buffer is released.

GetReleasedAudioOutBuffer

Takes a type-6 output buffer which will be filled with the identifiers from #AppendAudioOutBuffer of audio buffers that have been released. Returns an u32 ReleasedBuffersCount.

ContainsAudioOutBuffer

Takes an u64 tag for the desired buffer. Returns 1 if the buffer was appended and not yet released.

AppendAudioOutBufferEx

Same as #AppendAudioOutBuffer but takes a type-0x21 buffer instead.

GetReleasedAudioOutBufferEx

Same as #GetReleasedAudioOutBuffer but takes a type-0x22 buffer instead.

audin:u

This is "nn::audio::detail::IAudioInManagerForDebugger".

Cmd	Name
0	ListAudioIns
1	OpenAudioIn
2	[3.0.0+] ListAudioInsEx
3	[3.0.0+] OpenAudioInEx

IAudioIn

This is "nn::audio::detail::IAudioIn".

Cmd	Name
0	#GetAudioInState
1	StartAudioIn
2	StopAudioIn
3	AppendAudioInBuffer
4	RegisterBufferEvent
5	GetReleasedAudioInBuffer
6	ContainsAudioInBuffer
7
8	[3.0.0+] AppendAudioInBufferEx
9	[3.0.0+] GetReleasedAudioInBufferEx
10	[3.0.0+]

GetAudioInState

Returns an AudioInState, 0x00=Started 0x01=Stopped (u32)

audrec:u

This is "nn::audio::detail::IFinalOutputRecorderManager".

Cmd	Name
0	OpenFinalOutputRecorder

IFinalOutputRecorder

This is "nn::audio::detail::IFinalOutputRecorder".

Cmd	Name
0	GetFinalOutputRecorderState
1	StartFinalOutputRecorder
2	StopFinalOutputRecorder
3	AppendFinalOutputRecorderBuffer
4	RegisterBufferEvent
5	GetReleasedFinalOutputRecorderBuffer
6	ContainsFinalOutputRecorderBuffer

audren:u

This is "nn::audio::detail::IAudioRendererManager".

Cmd	Name
0	OpenAudioRenderer
1	GetAudioRendererWorkBufferSize
2	GetAudioRenderersProcessMasterVolume
3	SetAudioRenderersProcessMasterVolume

IAudioRenderer

This is "nn::audio::detail::IAudioRenderer".

Cmd	Name
0	#GetAudioRendererSampleRate
1	#GetAudioRendererSampleCount
2	#GetAudioRendererMixBufferCount
3	#GetAudioRendererState
4	RequestUpdateAudioRenderer
5	StartAudioRenderer
6	StopAudioRenderer
7	QuerySystemEvent
8	#SetAudioRendererRenderingTimeLimit
9	#GetAudioRendererRenderingTimeLimit

GetAudioRendererSampleRate

Returns the Sample Rate. (u32)

GetAudioRendererSampleCount

Returns the Sample Count. (u32)

GetAudioRendererMixBufferCount

Returns the number of Mix Buffers. (u32)

GetAudioRendererState

Returns an AudioRenderState, 0x00=Started 0x01=Stopped (u32)

SetAudioRendererRenderingTimeLimit

Takes a upper limit of the rendering time in percent. (u32)

GetAudioRendererRenderingTimeLimit

Returns the upper limit of the rendering time in percent. (u32)

audout:a, audin:a, audrec:a, audren:a

This is "nn::audio::detail::IAudioOutManagerForApplet", "nn::audio::detail::IAudioInManagerForApplet", "nn::audio::detail::IFinalOutputRecorderManagerForApplet", "nn::audio::detail::IAudioRendererManagerForApplet".

Cmd	Name
0	RequestSuspend
1	RequestResume

audout:d, audin:d, audrec:d, audren:d

This is "nn::audio::detail::IAudioOutManagerForDebugger", "nn::audio::detail::IAudioInManagerForDebugger", "nn::audio::detail::IFinalOutputRecorderManagerForDebugger", "nn::audio::detail::IAudioRendererManagerForDebugger".

Cmd	Name
0	#RequestSuspendForDebug
1	#RequestResumeForDebug

RequestSuspendForDebug

Takes an AppletResourceUserId. (u64)

RequestResumeForDebug

Takes an AppletResourceUserId. (u64)

codecctl

This is "nn::audio::detail::ICodecController".

Cmd	Name
0	InitializeCodecController
1	FinalizeCodecController
2	SleepCodecController
3	WakeCodecController
4	#SetCodecVolume
5	GetCodecVolumeMax
6	GetCodecVolumeMin
7	SetCodecActiveTarget
8	Unknown
9	BindCodecHeadphoneMicJackInterrupt
10	IsCodecHeadphoneMicJackInserted
11	ClearCodecHeadphoneMicJackInterrupt
12	IsCodecDeviceRequested

SetCodecVolume

Takes a Volume (uint32)