dx::coreaudio::server::device< pin_t > Class Template Reference

streaming device representation of dxd kernel user client More...

#include <dx_coreaudio_server.h>

Inheritance diagram for dx::coreaudio::server::device< pin_t >:

Collaboration diagram for dx::coreaudio::server::device< pin_t >:

Public Member Functions
virtual void	configure (target target, ::UInt64 action, void *info)
	configure: handle configuration change requests
	device (decltype(super::driver)&driver, decltype(super::id)&id)
	device (decltype(super::driver)&driver, decltype(super::id)&id, const typename super::desc &desc)
void	io_start ()
void	io_stop ()
void	io_timestamp (::Float64 &sampletime, ::UInt64 &host_time, ::UInt64 &seed)
void	launch () override
void	operator= (const ::AudioServerPlugInHostInterface *host) noexcept
	attaches CoreAudio plugin parent
pin_t &	pin (::AudioObjectID id)
pin_t &	pin (target target)
virtual uint32_t	property (target target, const ::AudioObjectPropertyAddress &address, void *property, ::UInt32 &size, bool set=false)
	generic device property handler
virtual uint32_t	request (uint32_t samplerate)
	async samplerate request issue an asynchronous CoreAudio samplerate request.

Public Attributes
uint8_t	idx = 0
std::deque< pin_t >	pins

Detailed Description

template<typename pin_t>
class dx::coreaudio::server::device< pin_t >

streaming device representation of dxd kernel user client

CoreAudio server plugin.

In contrast to the hierarchical dx device tree design the device keeps a list of all pins and all streams to better reflect the CoreAudio architecture.

Todo

static OSStatus deviceSampleRateChanged(AudioObjectID inObjectID, UInt32 inNumberAddresses, const AudioObjectPropertyAddress* inAddresses, void* __nullable inClientData) { cout << "callback" << endl; return noErr; }

AudioObjectPropertyAddress address; address.mSelector = kAudioDevicePropertyNominalSampleRate; address.mScope = kAudioObjectPropertyScopeGlobal; address.mElement = kAudioObjectPropertyElementMaster;

AudioObjectAddPropertyListener(unit, &address, &deviceSampleRateChanged, this);

Constructor & Destructor Documentation

device() [1/2]

template<typename pin_t >

dx::coreaudio::server::device< pin_t >::device ( decltype(super::driver)& driver, decltype(super::id)& id )

inline

device() [2/2]

template<typename pin_t >

dx::coreaudio::server::device< pin_t >::device ( decltype(super::driver)& driver, decltype(super::id)& id, const typename super::desc & desc )

inline

Member Function Documentation

configure()

template<typename pin_t >

virtual void dx::coreaudio::server::device< pin_t >::configure ( target target, ::UInt64 action, void * info )

inlinevirtual

configure: handle configuration change requests

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io_start()

template<typename pin_t >

void dx::coreaudio::server::device< pin_t >::io_start ( )

inline

Todo

coreaudio::device::io_start(): check stream state while waiting for cycle switch

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io_stop()

template<typename pin_t >

void dx::coreaudio::server::device< pin_t >::io_stop ( )

inline

io_timestamp()

template<typename pin_t >

void dx::coreaudio::server::device< pin_t >::io_timestamp ( ::Float64 & sampletime, ::UInt64 & host_time, ::UInt64 & seed )

inline

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launch()

template<typename pin_t >

void dx::coreaudio::server::device< pin_t >::launch ( )

inlineoverride

creates pins from dx::device description and adds it as CoreAudio entity to the CoreAudio device

register all audio pins across all streams

Todo

make sync ref stream selectable from stream::desc

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operator=()

template<typename pin_t >

void dx::coreaudio::server::device< pin_t >::operator= ( const ::AudioServerPlugInHostInterface * host )

inlinenoexcept

attaches CoreAudio plugin parent

pin() [1/2]

template<typename pin_t >

pin_t & dx::coreaudio::server::device< pin_t >::pin ( ::AudioObjectID id )

inline

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pin() [2/2]

template<typename pin_t >

pin_t & dx::coreaudio::server::device< pin_t >::pin ( target target )

inline

property()

template<typename pin_t >

virtual uint32_t dx::coreaudio::server::device< pin_t >::property ( target target, const ::AudioObjectPropertyAddress & address, void * property, ::UInt32 & size, bool set = false )

inlinevirtual

generic device property handler

• has property (property= null)
• get property
• get property size (property= null)
• set property (set= true)
• is property settable (property= null, set= true)

Todo

provide channel names

Todo

evaluate if setting of kAudioDevicePropertySafetyOffset should be supported

Todo

keep track and return running state of pin

Todo

kAudioSelectorControlPropertyAvailableItems: calc clock # settings offset for multiple clock support

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request()

template<typename pin_t >

virtual uint32_t dx::coreaudio::server::device< pin_t >::request ( uint32_t samplerate )

inlinevirtual

async samplerate request issue an asynchronous CoreAudio samplerate request.

Todo

coreaudio::server::request(): evaluate if sample rate has to asynchronously submitted at all

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Member Data Documentation

[struct]

struct { ... } dx::coreaudio::server::device< pin_t >::clock

[struct]

struct { ... } dx::coreaudio::server::device< pin_t >::config

count

template<typename pin_t >

uint64_t dx::coreaudio::server::device< pin_t >::count

cached sync cycle count to evaluate timesamp generation

[struct]

struct { ... } dx::coreaudio::server::device< pin_t >::cycle

engine_driven

template<typename pin_t >

bool dx::coreaudio::server::device< pin_t >::engine_driven

pins do not provide any means of driving streaming

idx

template<typename pin_t >

uint8_t dx::coreaudio::server::device< pin_t >::idx = 0

lines

template<typename pin_t >

uint32_t dx::coreaudio::server::device< pin_t >::lines

sample lines per sync cycle (per timestamp generation)

linesize

template<typename pin_t >

uint32_t dx::coreaudio::server::device< pin_t >::linesize

size of all channels in bytes per sample

offset

template<typename pin_t >

uint32_t dx::coreaudio::server::device< pin_t >::offset

timestamp generation offset to zero reference on seed change

pins

template<typename pin_t >

std::deque<pin_t> dx::coreaudio::server::device< pin_t >::pins

reference

template<typename pin_t >

pin_t::circular_t* dx::coreaudio::server::device< pin_t >::reference

[struct]

struct { ... } dx::coreaudio::server::device< pin_t >::request

safety_offset

template<typename pin_t >

uint32_t dx::coreaudio::server::device< pin_t >::safety_offset[2]

RX/TX safety offsets;.

samplerate

template<typename pin_t >

uint32_t dx::coreaudio::server::device< pin_t >::samplerate

dispatch_async samplerate parameter storage location (stack not suitable)

seed

template<typename pin_t >

uint64_t dx::coreaudio::server::device< pin_t >::seed

source

template<typename pin_t >

target dx::coreaudio::server::device< pin_t >::source

dispatch_async clock::source parameter storage location (stack not suitable)

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The documentation for this class was generated from the following file:

• dx_coreaudio_server.h