Package org.lwjgl.openal

Class EXTCapture

java.lang.Object
org.lwjgl.openal.EXTCapture
public class EXTCapture extends Object
Native bindings to the ALC_EXT_CAPTURE extension.

An OpenAL 1.1 implementation will always support the ALC_EXT_CAPTURE extension. This allows an application written to the OpenAL 1.0 specification to access the capture abilities.

  • Field Details

    • ALC_CAPTURE_DEVICE_SPECIFIER

      public static final int ALC_CAPTURE_DEVICE_SPECIFIER
      String queries.
      See Also:

    • ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER

      public static final int ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER
      String queries.
      See Also:

    • ALC_CAPTURE_SAMPLES

      public static final int ALC_CAPTURE_SAMPLES
      Integer queries.
      See Also:

  • Method Details

    • nalcCaptureOpenDevice

      public static long nalcCaptureOpenDevice(long deviceName, int frequency, int format, int samples)
      Unsafe version of: CaptureOpenDevice

    • alcCaptureOpenDevice

      public static long alcCaptureOpenDevice(@Nullable ByteBuffer deviceName, int frequency, int format, int samples)
      Allows the application to connect to a capture device.

      The deviceName argument is a null terminated string that requests a certain device or device configuration. If NULL is specified, the implementation will provide an implementation specific default.

      Parameters:
      deviceName - the device or device configuration
      frequency - the audio frequency
      format - the audio format
      samples - the number of sample frames to buffer in the AL

    • alcCaptureOpenDevice

      public static long alcCaptureOpenDevice(@Nullable CharSequence deviceName, int frequency, int format, int samples)
      Allows the application to connect to a capture device.

      The deviceName argument is a null terminated string that requests a certain device or device configuration. If NULL is specified, the implementation will provide an implementation specific default.

      Parameters:
      deviceName - the device or device configuration
      frequency - the audio frequency
      format - the audio format
      samples - the number of sample frames to buffer in the AL

    • alcCaptureCloseDevice

      public static boolean alcCaptureCloseDevice(long device)
      Allows the application to disconnect from a capture device.
      Parameters:
      device - the capture device to close

    • alcCaptureStart

      public static void alcCaptureStart(long device)
      Starts recording audio on the specific capture device.

      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.

      Parameters:
      device - the capture device

    • alcCaptureStop

      public static void alcCaptureStop(long device)
      Halts audio capturing without closing the capture device.

      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.

      Parameters:
      device - the capture device

    • nalcCaptureSamples

      public static void nalcCaptureSamples(long device, long buffer, int samples)
      Unsafe version of: CaptureSamples

    • alcCaptureSamples

      public static void alcCaptureSamples(long device, ByteBuffer buffer, int samples)
      Obtains captured audio samples from the AL.

      The implementation may defer conversion and resampling until this point. Requesting more sample frames than are currently available is an error.

      Parameters:
      device - the capture device
      buffer - the buffer that will receive the samples. It must be big enough to contain at least samples sample frames.
      samples - the number of sample frames to obtain

    • alcCaptureSamples

      public static void alcCaptureSamples(long device, ShortBuffer buffer, int samples)
      Obtains captured audio samples from the AL.

      The implementation may defer conversion and resampling until this point. Requesting more sample frames than are currently available is an error.

      Parameters:
      device - the capture device
      buffer - the buffer that will receive the samples. It must be big enough to contain at least samples sample frames.
      samples - the number of sample frames to obtain

    • alcCaptureSamples

      public static void alcCaptureSamples(long device, IntBuffer buffer, int samples)
      Obtains captured audio samples from the AL.

      The implementation may defer conversion and resampling until this point. Requesting more sample frames than are currently available is an error.

      Parameters:
      device - the capture device
      buffer - the buffer that will receive the samples. It must be big enough to contain at least samples sample frames.
      samples - the number of sample frames to obtain

    • alcCaptureSamples

      public static void alcCaptureSamples(long device, FloatBuffer buffer, int samples)
      Obtains captured audio samples from the AL.

      The implementation may defer conversion and resampling until this point. Requesting more sample frames than are currently available is an error.

      Parameters:
      device - the capture device
      buffer - the buffer that will receive the samples. It must be big enough to contain at least samples sample frames.
      samples - the number of sample frames to obtain

    • alcCaptureSamples

      public static void alcCaptureSamples(long device, short[] buffer, int samples)
      Array version of: CaptureSamples

    • alcCaptureSamples

      public static void alcCaptureSamples(long device, int[] buffer, int samples)
      Array version of: CaptureSamples

    • alcCaptureSamples

      public static void alcCaptureSamples(long device, float[] buffer, int samples)
      Array version of: CaptureSamples