AudioOutput

fun addListener(listener: AudioOutput.Listener!): Unit

Adds a Listener for audio output events.

fun attachAuxEffect(effectId: Int): Unit

Attaches an auxiliary effect to the output.

@UnstableApi
fun canReuseAudioOutput(
    currentConfig: AudioOutputProvider.OutputConfig!,
    newFormat: AudioOutputProvider.FormatConfig!,
    newConfig: AudioOutputProvider.OutputConfig!
): Boolean

Returns if the configurations are sufficiently compatible to reuse this audio output.

fun flush(): Unit

Flushes the audio data from the output.

fun getAudioSessionId(): Int

Returns the audio session ID or AUDIO_SESSION_ID_UNSET if unknown.

fun getBufferSizeInFrames(): Long

Returns the buffer size in frames of the underlying AudioOutput.

fun getPlaybackParameters(): PlaybackParameters!

Returns the playback parameters.

fun getPositionUs(): Long

Returns the current playout timestamp in microseconds.

fun getSampleRate(): Int

Returns the sample rate of the underlying AudioOutput.

fun isOffloadedPlayback(): Boolean

Returns whether this output is playing back in offload mode.

fun isStalled(): Boolean

Returns whether the audio output is stalled.

fun pause(): Unit

Pauses playback.

fun play(): Unit

Starts or resumes playing audio.

fun release(): Unit

Releases the AudioOutput.

fun removeListener(listener: AudioOutput.Listener!): Unit

Removes a Listener for audio output events.

fun setAuxEffectSendLevel(level: Float): Unit

Sets the send level for the auxiliary effect.

fun setOffloadDelayPadding(delayInFrames: Int, paddingInFrames: Int): Unit

Sets the offload delay and padding.

fun setOffloadEndOfStream(): Unit

Notifies the output that this is the end of the stream.

fun setPlaybackParameters(playbackParams: PlaybackParameters!): Unit

Sets the playback parameters.

@UnstableApi
fun setPlayerId(playerId: PlayerId!): Unit

Sets the PlayerId on the audio output.

fun setPreferredDevice(preferredDevice: AudioDeviceInfo?): Unit

Sets the preferred audio device for routing, or null for no preference.

fun setVolume(volume: Float): Unit

Sets the volume of the AudioOutput.

fun stop(): Unit

Signal that the last buffer has been written and playback should stop after playing out all remaining buffers

fun write(
    buffer: ByteBuffer!,
    encodedAccessUnitCount: Int,
    presentationTimeUs: Long
): Boolean

Writes audio data to the audio output for playback with a presentation timestamp.

The provided buffer must be a direct byte buffer with native byte order. The method is read-only and will not modify the bytes. It processes data from buffer.position() to buffer.limit() (exclusive). Every call will advance buffer.position() to reflect the number of bytes written.

The first time this method is called with a new buffer, the buffer must contain one or more complete encoded access units or complete PCM frames.

If this method returns false, the same buffer must be used for subsequent calls to this method until it has been fully consumed, or until an intervening call to flush.