WaveformAudioBufferSink

Kotlin |Java

@UnstableApi
class WaveformAudioBufferSink : TeeAudioProcessor.AudioBufferSink

A sink for audio buffers that produces waveform bars.

Summary

Nested types
`interface WaveformAudioBufferSink.Listener` Listener for the audio waveform generation.
`class WaveformAudioBufferSink.WaveformBar` Aggregates a group of audio samples.

Public constructors
`WaveformAudioBufferSink( barsPerSecond: Int, outputChannelCount: Int, listener: WaveformAudioBufferSink.Listener! )` Creates a new instance.

Public functions
`Unit`	`flush(sampleRateHz: Int, channelCount: Int, @C.PcmEncoding encoding: Int)` Called when the audio processor is flushed with a format of subsequent input.
`Unit`	`handleBuffer(buffer: ByteBuffer!)` Called when data is written to the audio processor.

WaveformAudioBufferSink(
    barsPerSecond: Int,
    outputChannelCount: Int,
    listener: WaveformAudioBufferSink.Listener!
)

Creates a new instance.

Parameters
`barsPerSecond: Int`	The number of bars that should be generated per each second of audio.
`outputChannelCount: Int`	The number of channels that the output waveform should contain. If this is different than the number of input channels, the audio will be mixed using the `default mixing matrix`.
`listener: WaveformAudioBufferSink.Listener!`	The listener to be notified when a new waveform bar has been generated.

fun flush(sampleRateHz: Int, channelCount: Int, @C.PcmEncoding encoding: Int): Unit

Called when the audio processor is flushed with a format of subsequent input.

fun handleBuffer(buffer: ByteBuffer!): Unit

Called when data is written to the audio processor.

Parameters
`buffer: ByteBuffer!`	A read-only buffer containing input which the audio processor will handle.