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AudioOutputDriver

AudioOutputDriver

public abstract class AudioOutputDriver
extends Object

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


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

Summary

Public constructors

AudioOutputDriver()

Public methods

abstract void onStandbyChanged(boolean inStandby)

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

abstract int write(ByteBuffer buffer, int bytesToWrite)

Called by the system when data needs to be written.

Inherited methods

From class java.lang.Object

Public constructors

AudioOutputDriver

AudioOutputDriver ()

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.

write

int write (ByteBuffer buffer, 
                int bytesToWrite)

Called by the system when data needs to be written. The implementer should write the logic to play the buffer, blocking until the specified number of bytes have been written out.

Parameters
buffer ByteBuffer: Buffer with data to write.
bytesToWrite int: Number of bytes to write out.
Returns
int The positive number of bytes written.
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