Nintendo Switch Brew

Audio services: Difference between revisions

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== OpenAudioOut ==
== 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.
Takes a type-5 input buffer ('''DeviceNameIn'''), a type-6 output buffer ('''DeviceNameOut'''), two u32s '''SampleRate''' (must be 48000) and '''ChannelCount''' (only the higher u16 is used), one u64 '''ClientPID''', a PID and a copy-handle.
Returns an [[#IAudioOut]] object and four u32s: the sample rate, channel count, [[#PCM_format|PCM format]], and the initial AudioOutState.
Returns an [[#IAudioOut]] object and four u32s: the sample rate, channel count, [[#PCM_format|PCM format]], and the initial AudioOutState.


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


= audrec:u =
= audrec:u =
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| 2 || GetAudioRenderersProcessMasterVolume
| 2 || GetAudioRenderersProcessMasterVolume
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| 3 || SetAudioRenderersProcessMasterVolume
| 3 || [3.0.0+] SetAudioRenderersProcessMasterVolume
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| 4 || [4.0.0+]
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| 9 || [[#GetAudioRendererRenderingTimeLimit]]
| 9 || [[#GetAudioRendererRenderingTimeLimit]]
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| 10 || [3.0.0+] RequestUpdateAudioRendererEx
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| 11 || [3.0.0+]
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== RequestSuspendForDebug ==
== RequestSuspendForDebug ==
 
Takes an u64 [[AM_services#AppletResourceUserId|AppletResourceUserId]].
Takes an [[AM_services#AppletResourceUserId|AppletResourceUserId]]. (u64)


== RequestResumeForDebug ==
== RequestResumeForDebug ==
Takes an u64 [[AM_services#AppletResourceUserId|AppletResourceUserId]].


Takes an [[AM_services#AppletResourceUserId|AppletResourceUserId]]. (u64)
= audctl =
This is "nn::audioctrl::detail::IAudioController".
 
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| 17 || [3.0.0+]
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= codecctl =
= codecctl =
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== IsCodecDeviceRequested ==
== IsCodecDeviceRequested ==
Returns a bool.
Returns a bool.
= hwopus =
This is "nn::codec::detail::IHardwareOpusDecoderManager".
{| class="wikitable" border="1"
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! Cmd || Name
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| 0 || [[#OpenHardwareOpusDecoder]]
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| 1 || [[#GetHardwareOpusDecoderWorkBufferSize]]
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| 2 || [3.0.0+] OpenHardwareOpusDecoderEx
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| 3 || [3.0.0+] GetHardwareOpusDecoderWorkBufferSizeEx
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== OpenHardwareOpusDecoder ==
Takes two u32s '''SampleRate''' and '''ChannelCount''' packed as an u64, an u32 '''WorkBufferSize''' and an unknown handle. Returns an [[#IHardwareOpusDecoder]] object.
== GetHardwareOpusDecoderWorkBufferSize ==
Takes two u32s '''SampleRate''' and '''ChannelCount''' packed as an u64. Returns the required size for the decoder's work buffer.
== IHardwareOpusDecoder ==
This is "nn::codec::detail::IHardwareOpusDecoder".
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| 0 || [[#Decode]]
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| 1 || [[#SendDecoderContext]]
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| 2 || [3.0.0+] DecodeEx
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| 3 || [3.0.0+] SendDecoderContextEx
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| 4 || [4.0.0+]
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=== Decode ===
Takes a type-5 input buffer ('''OpusDataIn''') and a type-6 output buffer ('''PcmDataOut'''). Decodes the Opus source data to PCM and returns two u32s '''DecodedSampleCount''' and '''DecodedDataSize'''.
=== SendDecoderContext ===
Takes a type-5 input buffer ('''DecoderContextIn'''). Sends the unknown context data to the hardware decoder.
= auddebug =
This service doesn't exist in retail units.


[[Category:Services]]
[[Category:Services]]
Retrieved from "https://switchbrew.org/wiki/Audio_services"