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 "pa_debugprint.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 struct __PaWinWdmFilter PaWinWdmFilter
typedef struct __PaWinWdmPin PaWinWdmPin
typedef struct
__PaWinWdmHostApiRepresentation 
PaWinWdmHostApiRepresentation
typedef struct __PaWinWdmDeviceInfo PaWinWdmDeviceInfo
typedef struct __DATAPACKET DATAPACKET
typedef struct __PaWinWdmStream PaWinWdmStream

Functions

PaError PaWinWdm_Initialize (PaUtilHostApiRepresentation **hostApi, PaHostApiIndex index)

Variables

HMODULE DllKsUser = NULL
KSCREATEPINFunctionKsCreatePin = NULL

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

Define Documentation

#define PA_LOGE_

Referenced by PaWinWdm_Initialize().

#define PA_LOGL_

Referenced by PaWinWdm_Initialize().


Typedef Documentation

typedef struct __DATAPACKET DATAPACKET
typedef KSDDKAPI DWORD WINAPI KSCREATEPIN(HANDLE, PKSPIN_CONNECT, ACCESS_MASK, PHANDLE)
typedef struct __PaWinWdmPin PaWinWdmPin

Function Documentation

PaError PaWinWdm_Initialize ( PaUtilHostApiRepresentation **  hostApi,
PaHostApiIndex  index 
)

Variable Documentation

HMODULE DllKsUser = NULL

Referenced by PaWinWdm_Initialize().

Referenced by PaWinWdm_Initialize().


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