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.

• getPreSkipSamples

  public static int getPreSkipSamples​(List<byte[]> initializationData)

  Returns the number of pre-skip samples specified by the given Opus codec initialization data.

  Parameters:

  initializationData - The codec initialization data.

  Returns:

  The number of pre-skip samples.

• getSeekPreRollSamples

  public static int getSeekPreRollSamples​(List<byte[]> initializationData)

  Returns the number of seek per-roll samples specified by the given Opus codec initialization data.

  Parameters:

  initializationData - The codec initialization data.

  Returns:

  The number of seek pre-roll samples.