org.lwjgl.opengl

Class NVVideoCaptureUtil

java.lang.Object

org.lwjgl.opengl.NVVideoCaptureUtil

public final class NVVideoCaptureUtil
extends java.lang.Object

This class exposes the platform specific functionality present in the NV_video_capture extension.

Since:

20/5/2011

Author:

Spasi

Method Summary

Methods

Modifier and Type	Method and Description
static boolean	glBindVideoCaptureDeviceNV(int video_slot, long device) After successfully locking a video capture device, use this method to bind it to the capture slot specified in the current context.
static int	glEnumerateVideoCaptureDevicesNV(java.nio.LongBuffer devices) Enumerate the available video capture devices.
static boolean	glLockVideoCaptureDeviceNV(long device) To lock a video capture device to a display connection, use this method.
static boolean	glQueryVideoCaptureDeviceNV(long device, int attribute, java.nio.IntBuffer value) Use this method to query the unique ID of the physical device backing a video capture device handle.
static boolean	glReleaseVideoCaptureDeviceNV(long device) Use this method when finished capturing data on a locked video capture device to unlock it.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

glBindVideoCaptureDeviceNV

public static boolean glBindVideoCaptureDeviceNV(int video_slot,
                                 long device)

After successfully locking a video capture device, use this method to bind it to the capture slot specified in the current context. This method is the cross- platform equivalent of glXBindVideoCaptureDeviceNV and wglBindVideoCaptureDeviceNV.

Parameters:

video_slot - the video slot

device - the video capture device

Returns:

true if the binding was successful

glEnumerateVideoCaptureDevicesNV

public static int glEnumerateVideoCaptureDevicesNV(java.nio.LongBuffer devices)

Enumerate the available video capture devices. This method is the cross-platform equivalent of glXEnumerateVideoCaptureDevicesNV and wglEnumerateVideoCaptureDevicesNV. Since they are not really compatible, this method works like the WGL version. That is, you first call it with a null devices buffer, get the number of devices, then call it again with an appropriately sized buffer.

Parameters:

devices - the buffer to store devices in

Returns:

the number of available video capture devices

glLockVideoCaptureDeviceNV

public static boolean glLockVideoCaptureDeviceNV(long device)

To lock a video capture device to a display connection, use this method. Before using a video capture device, it must be locked. Once a video capture device is locked by a process, no other process can lock a video capture device with the same unique ID until the lock is released or the process ends.

Parameters:

device - the device to lock

Returns:

true if the lock was successful

glQueryVideoCaptureDeviceNV

public static boolean glQueryVideoCaptureDeviceNV(long device,
                                  int attribute,
                                  java.nio.IntBuffer value)

Use this method to query the unique ID of the physical device backing a video capture device handle.

Parameters:

device - the device

attribute - the attribute to query

value - the buffer to store the value in

Returns:

true if the query was successful

glReleaseVideoCaptureDeviceNV

public static boolean glReleaseVideoCaptureDeviceNV(long device)

Use this method when finished capturing data on a locked video capture device to unlock it.

Parameters:

device - the device

Returns:

true if the device was unlocked successfully