org.lwjgl.openal
Class ALC11
java.lang.Object
org.lwjgl.openal.ALC11
public final class ALC11
- extends java.lang.Object
The ALC11 class implements features in OpenAL 1.1, specifically
ALC methods and properties.
- Version:
- $Revision: 2286 $
$Id: ALC.java 2286 2006-03-23 19:32:21 +0000 (to, 23 mar 2006) matzon $
- Author:
- Brian Matzon
- See Also:
ALC10
Constructor Summary |
ALC11()
|
Method Summary |
static boolean |
alcCaptureCloseDevice(ALCdevice device)
The alcCaptureCloseDevice function allows the application to disconnect from a capture
device. |
static ALCdevice |
alcCaptureOpenDevice(java.lang.String devicename,
int frequency,
int format,
int buffersize)
The alcCaptureOpenDevice function allows the application to connect to a capture
device. |
static void |
alcCaptureSamples(ALCdevice device,
java.nio.ByteBuffer buffer,
int samples)
When the application feels there are enough samples available to process, it can obtain
them from the AL via the alcCaptureSamples entry point. |
static void |
alcCaptureStart(ALCdevice device)
Once a capture device has been opened via alcCaptureOpenDevice, it is made to start
recording audio via the alcCaptureStart entry point:
Once started, the device will record audio to an internal ring buffer, the size of which was
specified when opening the device. |
static void |
alcCaptureStop(ALCdevice device)
If the application doesn't need to capture more audio for an amount of time, they can halt
the device without closing it via the alcCaptureStop entry point. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
ALC_DEFAULT_ALL_DEVICES_SPECIFIER
public static final int ALC_DEFAULT_ALL_DEVICES_SPECIFIER
- See Also:
- Constant Field Values
ALC_ALL_DEVICES_SPECIFIER
public static final int ALC_ALL_DEVICES_SPECIFIER
- See Also:
- Constant Field Values
ALC_CAPTURE_DEVICE_SPECIFIER
public static final int ALC_CAPTURE_DEVICE_SPECIFIER
- See Also:
- Constant Field Values
ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER
public static final int ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER
- See Also:
- Constant Field Values
ALC_CAPTURE_SAMPLES
public static final int ALC_CAPTURE_SAMPLES
- See Also:
- Constant Field Values
ALC11
public ALC11()
alcCaptureOpenDevice
public static ALCdevice alcCaptureOpenDevice(java.lang.String devicename,
int frequency,
int format,
int buffersize)
- The alcCaptureOpenDevice function allows the application to connect to a capture
device. To obtain a list of all available capture devices, use getCaptureDevices a list of all
capture devices will be returned. Retrieving ALC_CAPTURE_DEVICE_SPECIFIER with a valid capture device specified will result
in the name of that device being returned as a single string.
If the function returns null, then no sound driver/device has been found, or the
requested format could not be fulfilled.
The "deviceName" argument is a string that requests a certain device or
device configuration. If null is specified, the implementation will provide an
implementation specific default. The "frequency" and "format" arguments specify the format that
audio data will be presented to the application, and match the values that can be passed to
alBufferData. The implementation is expected to convert and resample to this format on
behalf of the application. The "buffersize" argument specifies the number of sample frames
to buffer in the AL, for example, requesting a format of AL_FORMAT_STEREO16 and
a buffer size of 1024 would require the AL to store up to 1024 * 4 bytes of audio data.
Note that the implementation may use a larger buffer than requested if it needs to, but the
implementation will set up a buffer of at least the requested size.
Specifying a compressed or extension-supplied format may result in failure, even if the
extension is supplied for rendering.
LWJGL SPECIFIC: the actual created device is managed internally in lwjgl
- Parameters:
devicename
- Name of device to open for capturefrequency
- Frequency of samples to captureformat
- Format of samples to capturebuffersize
- Size of buffer to capture to
- Returns:
- ALCdevice if it was possible to open a device
alcCaptureCloseDevice
public static boolean alcCaptureCloseDevice(ALCdevice device)
- The alcCaptureCloseDevice function allows the application to disconnect from a capture
device.
The return code will be true or false, indicating success or failure. If
the device is null or invalid, an ALC_INVALID_DEVICE error will be generated.
Once closed, a capture device is invalid.
- Returns:
- true if device was successfully closed
alcCaptureStart
public static void alcCaptureStart(ALCdevice device)
- Once a capture device has been opened via alcCaptureOpenDevice, it is made to start
recording audio via the alcCaptureStart entry point:
Once started, the device will record audio to an internal ring buffer, the size of which was
specified when opening the device.
The application may query the capture device to discover how much data is currently
available via the alcGetInteger with the ALC_CAPTURE_SAMPLES token. This will
report the number of sample frames currently available.
alcCaptureStop
public static void alcCaptureStop(ALCdevice device)
- If the application doesn't need to capture more audio for an amount of time, they can halt
the device without closing it via the alcCaptureStop entry point.
The implementation is encouraged to optimize for this case. The amount of audio
samples available after restarting a stopped capture device is reset to zero. The
application does not need to stop the capture device to read from it.
alcCaptureSamples
public static void alcCaptureSamples(ALCdevice device,
java.nio.ByteBuffer buffer,
int samples)
- When the application feels there are enough samples available to process, it can obtain
them from the AL via the alcCaptureSamples entry point.
The "buffer" argument specifies an application-allocated buffer that can contain at least
"samples" sample frames. The implementation may defer conversion and resampling until
this point. Requesting more sample frames than are currently available is an error.
- Parameters:
buffer
- Buffer to store samples insamples
- Number of samples to request
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