de.sciss.jump3r.mp3

Class BitStream

java.lang.Object

de.sciss.jump3r.mp3.BitStream

public class BitStream
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	BitStream.TotalBytes

Constructor Summary

Constructors

Constructor and Description
BitStream()

Method Summary

Modifier and Type	Method and Description
void	add_dummy_byte(LameGlobalFlags gfp, int val, int n)
int	copy_buffer(LameInternalFlags gfc, byte[] buffer, int bufferPos, int size, int mp3data) copy data out of the internal MP3 bit buffer into a user supplied unsigned char buffer.
void	CRC_writeheader(LameInternalFlags gfc, byte[] header)
static boolean	EQ(float a, float b)
void	flush_bitstream(LameGlobalFlags gfp)
int	format_bitstream(LameGlobalFlags gfp) This is called after a frame of audio has been quantized and coded.
int	getframebits(LameGlobalFlags gfp) compute bitsperframe and mean_bits for a layer III frame
void	init_bit_stream_w(LameInternalFlags gfc)
static boolean	NEQ(float a, float b)
void	setModules(GainAnalysis ga, MPGLib mpg, Version ver, VBRTag vbr)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BitStream

public BitStream()

Method Detail

setModules

public final void setModules(GainAnalysis ga,
                             MPGLib mpg,
                             Version ver,
                             VBRTag vbr)

getframebits

public final int getframebits(LameGlobalFlags gfp)

compute bitsperframe and mean_bits for a layer III frame

CRC_writeheader

public final void CRC_writeheader(LameInternalFlags gfc,
                                  byte[] header)

flush_bitstream

public final void flush_bitstream(LameGlobalFlags gfp)

add_dummy_byte

public final void add_dummy_byte(LameGlobalFlags gfp,
                                 int val,
                                 int n)

format_bitstream

public final int format_bitstream(LameGlobalFlags gfp)

This is called after a frame of audio has been quantized and coded. It will write the encoded audio to the bitstream. Note that from a layer3 encoder's perspective the bit stream is primarily a series of main_data() blocks, with header and side information inserted at the proper locations to maintain framing. (See Figure A.7 in the IS).

copy_buffer

public final int copy_buffer(LameInternalFlags gfc,
                             byte[] buffer,
                             int bufferPos,
                             int size,
                             int mp3data)

 copy data out of the internal MP3 bit buffer into a user supplied
           unsigned char buffer.
 
           mp3data=0      indicates data in buffer is an id3tags and VBR tags
           mp3data=1      data is real mp3 frame data.
 

init_bit_stream_w

public final void init_bit_stream_w(LameInternalFlags gfc)

EQ

public static boolean EQ(float a,
                         float b)

NEQ

public static boolean NEQ(float a,
                          float b)