WaveformAudioBufferSink

Kotlin |Java

@UnstableApi
public class WaveformAudioBufferSink implements TeeAudioProcessor.AudioBufferSink

A sink for audio buffers that produces waveform bars.

Summary

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

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

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

public WaveformAudioBufferSink(
    int barsPerSecond,
    int outputChannelCount,
    WaveformAudioBufferSink.Listener listener
)

Creates a new instance.

Parameters
`int barsPerSecond`	The number of bars that should be generated per each second of audio.
`int outputChannelCount`	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`.
`WaveformAudioBufferSink.Listener listener`	The listener to be notified when a new waveform bar has been generated.

public void flush(int sampleRateHz, int channelCount, @C.PcmEncoding int encoding)

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

public void handleBuffer(ByteBuffer buffer)

Called when data is written to the audio processor.

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