OpusUtil (ExoPlayer library)

java.lang.Object
- com.google.android.exoplayer2.audio.OpusUtil

```
public class OpusUtil
extends Object
```
Utility methods for handling Opus audio streams.

Field Summary

Fields
Modifier and Type Field Description

static int SAMPLE_RATE
Opus streams are always 48000 Hz.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static List<byte[]>`	`buildInitializationData(byte[] header)`	Builds codec initialization data from an Opus Identification Header.
`static int`	`getChannelCount(byte[] header)`	Parses the channel count from an Opus Identification Header.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - SAMPLE_RATE
```
public static final int SAMPLE_RATE
```
    Opus streams are always 48000 Hz.
    
    See Also:
    
    Constant Field Values
- Method Detail
  - getChannelCount
```
public static int getChannelCount(byte[] header)
```
    Parses the channel count from an Opus Identification Header.
    
    Parameters:
    
    header - An Opus Identification Header, as defined by RFC 7845.
    
    Returns:
    
    The parsed channel count.
  - buildInitializationData
```
public static List<byte[]> buildInitializationData(byte[] header)
```
    Builds codec initialization data from an Opus Identification Header.
    
    Parameters:
    
    header - An Opus Identification Header, as defined by RFC 7845.
    
    Returns:
    
    Codec initialization data suitable for an Opus MediaCodec.