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AudioInputDriver

AudioInputDriver

public abstract class AudioInputDriver
extends Object

java.lang.Object
   ↳ com.google.android.things.userdriver.AudioInputDriver


Driver to replace the android audio HAL for a specific device. User defined drivers should extend this class.

Summary

Public constructors

AudioInputDriver()

Public methods

abstract void onStandbyChanged(boolean inStandby)

Called by the system whenever the device goes into or comes out of standby mode.

abstract int read(ByteBuffer buffer, int bytesToRead)

Called by the system when data needs to be read.

Inherited methods

From class java.lang.Object

Public constructors

AudioInputDriver

AudioInputDriver ()

Public methods

onStandbyChanged

void onStandbyChanged (boolean inStandby)

Called by the system whenever the device goes into or comes out of standby mode.

Parameters
inStandby boolean: Indicates whether the new standby state of the device.

read

int read (ByteBuffer buffer, 
                int bytesToRead)

Called by the system when data needs to be read. The implementer should write the logic to fill the buffer with the specified number of audio samples, blocking until all bytes have been written to the buffer.

Parameters
buffer ByteBuffer: Buffer to read into.
bytesToRead int: Number of bytes to read.
Returns
int The positive number of bytes read.
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