dxd::portcls::wave< stream_desc_t > Class Template Reference

wave filter description shared by the wave port models More...

#include <dxd_portcls_audio.h>

Inheritance diagram for dxd::portcls::wave< stream_desc_t >:

Collaboration diagram for dxd::portcls::wave< stream_desc_t >:

Public Attributes
os_result	status =not_initialized

Protected Member Functions
::NTSTATUS	DataRangeIntersection (unsigned long pin, ::KSDATARANGE *client, ::KSDATARANGE *test, unsigned long size, void *format, unsigned long *resulting_size)
	http://msdn.microsoft.com/en-us/library/windows/hardware/ff536764(v=vs.85).aspx
::NTSTATUS	GetDescription (::PCFILTER_DESCRIPTOR **out_filter)
os_result	validate (const ::KSDATARANGE *range, const ::KSDATARANGE *test) const
	validate KSDATARANGE against streams KSDATARANGE_AUDIO supported collation
	wave (const wchar_t *portname, const::DEVICE_OBJECT *wdm_bus, const::DEVICE_OBJECT *wdm_pdo, const stream_desc_t &stream_desc, unsigned int idx, dx::stream::clock::bitmap bitmap)

Static Protected Member Functions
static const ::WAVEFORMATEXTENSIBLE *	waveformat (const ::KSDATAFORMAT *format)
	WAVEFORMATEXTENSIBLE of a validated pin format.

Protected Attributes
::GUID	category [3] {KSCATEGORY_AUDIO, {}, KSCATEGORY_REALTIME}
	filter
const unsigned int	idx = 0
::PCNODE_DESCRIPTOR	node [1]
::PCPIN_DESCRIPTOR	pin [2]
::KSDATARANGE *	streams [static_cast< int >(dx::stream::clock::rates)+4]
const::DEVICE_OBJECT *	wdm_bus

Detailed Description

template<typename stream_desc_t>
class dxd::portcls::wave< stream_desc_t >

wave filter description shared by the wave port models

Pin 0 faces the OS with one KSDATARANGE_AUDIO per supported rate, pin 1 bridges to the DAC/ADC node; the filter is KSCATEGORY_AUDIO, CAPTURE/RENDER and REALTIME.

Constructor & Destructor Documentation

wave()

template<typename stream_desc_t>

dxd::portcls::wave< stream_desc_t >::wave ( const wchar_t * portname, const::DEVICE_OBJECT * wdm_bus, const::DEVICE_OBJECT * wdm_pdo, const stream_desc_t & stream_desc, unsigned int idx, dx::stream::clock::bitmap bitmap )

inlineprotected

Member Function Documentation

DataRangeIntersection()

template<typename stream_desc_t>

::NTSTATUS dxd::portcls::wave< stream_desc_t >::DataRangeIntersection ( unsigned long pin, ::KSDATARANGE * client, ::KSDATARANGE * test, unsigned long size, void * format, unsigned long * resulting_size )

inlineprotected

http://msdn.microsoft.com/en-us/library/windows/hardware/ff536764(v=vs.85).aspx

validates and computes resulting size,

validates and checks client data range against pin collation

validates format return buffer size,

if passed validation test is KSDATARANGE_AUDIO

composes extra DSound specifier,

GetDescription()

template<typename stream_desc_t>

::NTSTATUS dxd::portcls::wave< stream_desc_t >::GetDescription ( ::PCFILTER_DESCRIPTOR ** out_filter )

inlineprotected

validate()

template<typename stream_desc_t>

os_result dxd::portcls::wave< stream_desc_t >::validate ( const ::KSDATARANGE * range, const ::KSDATARANGE * test ) const

inlineprotected

validate KSDATARANGE against streams KSDATARANGE_AUDIO supported collation

Returns

STATUS_NO_MATCH if not supported or STATUS_NOT_IMPLEMENTED if handled by port class

waveformat()

template<typename stream_desc_t>

const ::WAVEFORMATEXTENSIBLE * dxd::portcls::wave< stream_desc_t >::waveformat ( const ::KSDATAFORMAT * format )

inlinestaticprotected

WAVEFORMATEXTENSIBLE of a validated pin format.

Member Data Documentation

category

template<typename stream_desc_t>

::GUID dxd::portcls::wave< stream_desc_t >::category[3] {KSCATEGORY_AUDIO, {}, KSCATEGORY_REALTIME}

protected

filter

template<typename stream_desc_t>

dxd::portcls::wave< stream_desc_t >::filter

protected

idx

template<typename stream_desc_t>

const unsigned int dxd::portcls::miniport< stream_desc_t >::idx = 0

protectedinherited

node

template<typename stream_desc_t>

::PCNODE_DESCRIPTOR dxd::portcls::wave< stream_desc_t >::node[1]

protected

pin

template<typename stream_desc_t>

::PCPIN_DESCRIPTOR dxd::portcls::wave< stream_desc_t >::pin[2]

protected

status

template<typename stream_desc_t>

os_result dxd::portcls::miniport< stream_desc_t >::status =not_initialized

inherited

streams

template<typename stream_desc_t>

::KSDATARANGE* dxd::portcls::wave< stream_desc_t >::streams[static_cast< int >(dx::stream::clock::rates)+4]

protected

wdm_bus

template<typename stream_desc_t>

const::DEVICE_OBJECT* dxd::portcls::miniport< stream_desc_t >::wdm_bus

protectedinherited

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

• dxd_portcls_audio.h