File	Doc	Category	Size	Date	Package
AudioStreamChunk.java	API Doc	Jaudiotagger 2.0.4	9100	Wed Mar 30 16:11:50 BST 2011	org.jaudiotagger.audio.asf.data

AudioStreamChunk

• java.lang.Object
  • StreamChunk

(Omit source code)

Fields Summary
public static final String[]	CODEC_DESCRIPTIONS Stores the hex values of codec identifiers to their descriptions.
public static final long	WMA Stores the audio codec number for WMA
public static final long	WMA_CBR Stores the audio codec number for WMA (CBR)
public static final long	WMA_LOSSLESS Stores the audio codec number for WMA_LOSSLESS
public static final long	WMA_PRO Stores the audio codec number for WMA_PRO
public static final long	WMA_VBR Stores the audio codec number for WMA (VBR)
private long	averageBytesPerSec Stores the average amount of bytes used by audio stream. This value is a field within type specific data of audio stream. Maybe it could be used to calculate the KBPs.
private int	bitsPerSample Amount of bits used per sample.
private long	blockAlignment The block alignment of the audio data.
private long	channelCount Number of channels.
private byte[]	codecData Some data which needs to be interpreted if the codec is handled.
private long	compressionFormat The audio compression format code.
private GUID	errorConcealment this field stores the error concealment type.
private long	samplingRate Sampling rate of audio stream.

Constructors Summary
public AudioStreamChunk(BigInteger chunkLen) Creates an instance. param chunkLen Length of the entire chunk (including guid and size) super(GUID.GUID_AUDIOSTREAM, chunkLen);

Methods Summary
public long	getAverageBytesPerSec() return Returns the averageBytesPerSec. return this.averageBytesPerSec;
public int	getBitsPerSample() return Returns the bitsPerSample. return this.bitsPerSample;
public long	getBlockAlignment() return Returns the blockAlignment. return this.blockAlignment;
public long	getChannelCount() return Returns the channelCount. return this.channelCount;
public byte[]	getCodecData() return Returns the codecData. return this.codecData.clone();
public java.lang.String	getCodecDescription() This method will take a look at {@link #compressionFormat}and returns a String with its hex value and if known a textual note on what coded it represents. return A description for the used codec. final StringBuilder result = new StringBuilder(Long .toHexString(getCompressionFormat())); String furtherDesc = " (Unknown)"; for (final String[] aCODEC_DESCRIPTIONS : CODEC_DESCRIPTIONS) { if (aCODEC_DESCRIPTIONS[0].equalsIgnoreCase(result.toString())) { furtherDesc = aCODEC_DESCRIPTIONS[1]; break; } } if (result.length() % 2 == 0) { result.insert(0, "0x"); } else { result.insert(0, "0x0"); } result.append(furtherDesc); return result.toString();
public long	getCompressionFormat() return Returns the compressionFormat. return this.compressionFormat;
public GUID	getErrorConcealment() return Returns the errorConcealment. return this.errorConcealment;
public int	getKbps() This method takes the value of {@link #getAverageBytesPerSec()}and calculates the kbps out of it, by simply multiplying by 8 and dividing by 1000. return amount of bits per second in kilo bits. return (int) getAverageBytesPerSec() * 8 / 1000;
public long	getSamplingRate() return Returns the samplingRate. return this.samplingRate;
public boolean	isErrorConcealed() This mehtod returns whether the audio stream data is error concealed. For now only interleaved concealment is known. return true if error concealment is used. return getErrorConcealment().equals( GUID.GUID_AUDIO_ERROR_CONCEALEMENT_INTERLEAVED);
public java.lang.String	prettyPrint(java.lang.String prefix) {@inheritDoc} final StringBuilder result = new StringBuilder(super.prettyPrint(prefix)); result.append(prefix).append(" |-> Audio info:").append( Utils.LINE_SEPARATOR); result.append(prefix).append(" | : Bitrate : ").append(getKbps()) .append(Utils.LINE_SEPARATOR); result.append(prefix).append(" | : Channels : ").append( getChannelCount()).append(" at ").append(getSamplingRate()) .append(" Hz").append(Utils.LINE_SEPARATOR); result.append(prefix).append(" | : Bits per Sample: ").append( getBitsPerSample()).append(Utils.LINE_SEPARATOR); result.append(prefix).append(" | : Formatcode: ").append( getCodecDescription()).append(Utils.LINE_SEPARATOR); return result.toString();
public void	setAverageBytesPerSec(long avgeBytesPerSec) param avgeBytesPerSec The averageBytesPerSec to set. this.averageBytesPerSec = avgeBytesPerSec;
public void	setBitsPerSample(int bps) Sets the bitsPerSample param bps this.bitsPerSample = bps;
public void	setBlockAlignment(long align) Sets the blockAlignment. param align this.blockAlignment = align;
public void	setChannelCount(long channels) param channels The channelCount to set. this.channelCount = channels;
public void	setCodecData(byte[] codecSpecificData) Sets the codecData param codecSpecificData if (codecSpecificData == null) { throw new IllegalArgumentException(); } this.codecData = codecSpecificData.clone();
public void	setCompressionFormat(long cFormatCode) param cFormatCode The compressionFormat to set. this.compressionFormat = cFormatCode;
public void	setErrorConcealment(GUID errConc) This method sets the error concealment type which is given by two GUIDs. param errConc the type of error concealment the audio stream is stored as. this.errorConcealment = errConc;
public void	setSamplingRate(long sampRate) param sampRate The samplingRate to set. this.samplingRate = sampRate;