pa_win_wdmks.c File Reference

Portaudio WDM-KS host API. More...

#include <stdio.h>
#include <string.h>
#include <assert.h>
#include "pa_util.h"
#include "pa_allocation.h"
#include "pa_hostapi.h"
#include "pa_stream.h"
#include "pa_cpuload.h"
#include "pa_process.h"
#include "portaudio.h"
#include <windows.h>
#include <winioctl.h>
#include <ks.h>
#include <ksmedia.h>
#include <tchar.h>
#include <setupapi.h>

Data Structures
struct	__PaWinWdmPin
struct	__PaWinWdmFilter
struct	__PaWinWdmHostApiRepresentation
struct	__PaWinWdmDeviceInfo
struct	__DATAPACKET
struct	__PaWinWdmStream
Defines
#define	PA_LOGE_
#define	PA_LOGL_
Typedefs
typedef KSDDKAPI DWORD WINAPI	KSCREATEPIN (HANDLE, PKSPIN_CONNECT, ACCESS_MASK, PHANDLE)
typedef __PaWinWdmFilter	PaWinWdmFilter
typedef __PaWinWdmPin	PaWinWdmPin
typedef __PaWinWdmHostApiRepresentation	PaWinWdmHostApiRepresentation
typedef __PaWinWdmDeviceInfo	PaWinWdmDeviceInfo
typedef __DATAPACKET	DATAPACKET
typedef __PaWinWdmStream	PaWinWdmStream
Functions
PaError	PaWinWdm_Initialize (PaUtilHostApiRepresentation **hostApi, PaHostApiIndex index)
Variables
HMODULE	DllKsUser
KSCREATEPIN *	FunctionKsCreatePin
HMODULE	DllKsUser = NULL
KSCREATEPIN *	FunctionKsCreatePin = NULL

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Detailed Description

Portaudio WDM-KS host API.

Note:

This is the implementation of the Portaudio host API using the Windows WDM/Kernel Streaming API in order to enable very low latency playback and recording on all modern Windows platforms (e.g. 2K, XP) Note: This API accesses the device drivers below the usual KMIXER component which is normally used to enable multi-client mixing and format conversion. That means that it will lock out all other users of a device for the duration of active stream using those devices

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Define Documentation

#define PA_LOGE_

#define PA_LOGL_

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Typedef Documentation

typedef struct __DATAPACKET DATAPACKET

typedef KSDDKAPI DWORD WINAPI KSCREATEPIN(HANDLE, PKSPIN_CONNECT, ACCESS_MASK, PHANDLE)

typedef struct __PaWinWdmDeviceInfo PaWinWdmDeviceInfo

typedef struct __PaWinWdmFilter PaWinWdmFilter

typedef struct __PaWinWdmHostApiRepresentation PaWinWdmHostApiRepresentation

typedef struct __PaWinWdmPin PaWinWdmPin

typedef struct __PaWinWdmStream PaWinWdmStream

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Function Documentation

PaError PaWinWdm_Initialize	(	PaUtilHostApiRepresentation **	hostApi,
		PaHostApiIndex	index
	)

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Variable Documentation

HMODULE DllKsUser = NULL

HMODULE DllKsUser

KSCREATEPIN* FunctionKsCreatePin = NULL

KSCREATEPIN* FunctionKsCreatePin

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