C# Class javazoom.jl.decoder.Bitstream

The Bistream class is responsible for parsing an MPEG audio bitstream. * REVIEW: much of the parsing currently occurs in the various decoders. This should be moved into this class and associated inner classes.

Inheritance: BitstreamErrors

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Public Methods

Method	Description
close ( ) : void
closeFrame ( ) : void
get_bits ( int number_of_bits ) : int	Read bits from buffer into the lower bits of an unsigned int. The LSB contains the latest read bit of the stream. (1 <= number_of_bits <= 16)
isSyncCurrentPosition ( int syncmode ) : bool	Determines if the next 4 bytes of the stream represent a frame header.
isSyncMark ( int headerstring, int syncmode, int word ) : bool
readBits ( int n ) : int
readCheckedBits ( int n ) : int
unreadFrame ( ) : void	Unreads the bytes read from the frame. @throws BitstreamException

Protected Methods

Method	Description
newBitstreamException ( int errorcode ) : BitstreamException
newBitstreamException ( int errorcode, System throwable ) : BitstreamException

Private Methods

Method	Description
Bitstream ( BackStream in_Renamed ) : System	Construct a IBitstream that reads data from a given InputStream. *
InitBlock ( ) : void
nextFrame ( ) : void	*
parse_frame ( ) : void	Parses the data previously read with read_frame_data().
readBytes ( sbyte b, int offs, int len ) : int	Simlar to readFully, but doesn't throw exception when EOF is reached.
readFrame ( ) : Header	Reads and parses the next frame from the input source.
readFully ( sbyte b, int offs, int len ) : void	Reads the exact number of bytes from the source input stream into a byte array. *
readNextFrame ( ) : Header
read_frame_data ( int bytesize ) : void	Reads the data for the next frame. The frame is not parsed until parse frame is called.
set_syncword ( int syncword0 ) : void	Set the word we want to sync the header to. In Big-Endian byte order
syncHeader ( sbyte syncmode ) : int	Get next 32 bits from bitstream. They are stored in the headerstring. syncmod allows Synchro flag ID The returned value is False at the end of stream.

Method Details

close() public method

public close ( ) : void
return	void

closeFrame() public method

public closeFrame ( ) : void
return	void

get_bits() public method

Read bits from buffer into the lower bits of an unsigned int. The LSB contains the latest read bit of the stream. (1 <= number_of_bits <= 16)

public get_bits ( int number_of_bits ) : int
number_of_bits	int
return	int

isSyncCurrentPosition() public method

Determines if the next 4 bytes of the stream represent a frame header.

public isSyncCurrentPosition ( int syncmode ) : bool
syncmode	int
return	bool

isSyncMark() public method

public isSyncMark ( int headerstring, int syncmode, int word ) : bool
headerstring	int
syncmode	int
word	int
return	bool

newBitstreamException() protected method

protected newBitstreamException ( int errorcode ) : BitstreamException
errorcode	int
return	BitstreamException

newBitstreamException() protected method

protected newBitstreamException ( int errorcode, System throwable ) : BitstreamException
errorcode	int
throwable	System
return	BitstreamException

readBits() public method

public readBits ( int n ) : int
n	int
return	int

readCheckedBits() public method

public readCheckedBits ( int n ) : int
n	int
return	int

unreadFrame() public method

Unreads the bytes read from the frame. @throws BitstreamException

public unreadFrame ( ) : void
return	void