org.gagravarr.ogg

Class IOUtils

java.lang.Object

org.gagravarr.ogg.IOUtils

public class IOUtils
extends Object

Utilities for working with IO streams, such as reading and writing. Endian Note - Ogg and Vorbis tend to work in Little Endian format, while FLAC tends to work in Big Endian format.

Field Summary

Fields

Modifier and Type	Field and Description
protected static Charset	UTF8

Constructor Summary

Constructors

Constructor and Description
IOUtils()

Method Summary

Modifier and Type	Method and Description
static boolean	byteRangeMatches(byte[] wanted, byte[] within, int withinOffset) Checks to see if the wanted byte pattern is found in the within bytes from the given offset
static byte	fromInt(int i)
static int	getInt(int i0, int i1)
static long	getInt(int i0, int i1, int i2)
static long	getInt(int i0, int i1, int i2, int i3)
static long	getInt(int i0, int i1, int i2, int i3, int i4)
static long	getInt(int i0, int i1, int i2, int i3, int i4, int i5, int i6, int i7)
static int	getInt2(byte[] data)
static int	getInt2(byte[] data, int offset)
static int	getInt2BE(byte[] data)
static int	getInt2BE(byte[] data, int offset)
static long	getInt3(byte[] data)
static long	getInt3(byte[] data, int offset)
static long	getInt3BE(byte[] data)
static long	getInt3BE(byte[] data, int offset)
static long	getInt4(byte[] data)
static long	getInt4(byte[] data, int offset)
static long	getInt4BE(byte[] data)
static long	getInt4BE(byte[] data, int offset)
static long	getInt5(byte[] data)
static long	getInt5(byte[] data, int offset)
static long	getInt8(byte[] data)
static long	getInt8(byte[] data, int offset)
static int	getIntBE(int i0, int i1)
static long	getIntBE(int i0, int i1, int i2)
static long	getIntBE(int i0, int i1, int i2, int i3)
static String	getUTF8(byte[] data, int offset, int length)
static void	putInt2(byte[] data, int offset, int v)
static void	putInt2BE(byte[] data, int offset, int v)
static void	putInt3(byte[] data, int offset, long v)
static void	putInt3BE(byte[] data, int offset, long v)
static void	putInt4(byte[] data, int offset, long v)
static void	putInt4BE(byte[] data, int offset, long v)
static void	putInt5(byte[] data, int offset, long v)
static void	putInt8(byte[] data, int offset, long v)
static int	putUTF8(byte[] data, int offset, String str)
static void	readFully(InputStream inp, byte[] destination)
static void	readFully(InputStream inp, byte[] destination, int offset, int length)
static int	readOrEOF(InputStream stream)
static long	readUE7(InputStream stream) Gets the integer value that is stored in UTF-8 like fashion, in Big Endian but with the high bit on each number indicating if it continues or not
static String	removeNullPadding(String str) Strips off any null padding, if any, from the string
static int	toInt(byte b)
static byte[]	toUTF8Bytes(String str)
static void	writeInt2(OutputStream out, int v)
static void	writeInt2BE(OutputStream out, int v)
static void	writeInt3(OutputStream out, long v)
static void	writeInt3BE(OutputStream out, long v)
static void	writeInt4(OutputStream out, long v)
static void	writeInt4BE(OutputStream out, long v)
static void	writeInt5(OutputStream out, long v)
static void	writeInt8(OutputStream out, long v)
static void	writeUTF8(OutputStream out, String str) Writes the string out as UTF-8
static void	writeUTF8WithLength(OutputStream out, String str) Writes out a 4 byte integer of the length (in bytes!) of the String, followed by the String (as UTF-8)

Methods inherited from class java.lang.Object

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

Field Detail

UTF8

protected static final Charset UTF8

Constructor Detail

IOUtils

public IOUtils()

Method Detail

readFully

public static void readFully(InputStream inp,
                             byte[] destination)
                      throws IOException

Throws:

IOException

readFully

public static void readFully(InputStream inp,
                             byte[] destination,
                             int offset,
                             int length)
                      throws IOException

Throws:

IOException

toInt

public static int toInt(byte b)

fromInt

public static byte fromInt(int i)

readOrEOF

public static int readOrEOF(InputStream stream)
                     throws IOException

Throws:

IOException

getInt2

public static int getInt2(byte[] data)

getInt2

public static int getInt2(byte[] data,
                          int offset)

getInt3

public static long getInt3(byte[] data)

getInt3

public static long getInt3(byte[] data,
                           int offset)

getInt4

public static long getInt4(byte[] data)

getInt4

public static long getInt4(byte[] data,
                           int offset)

getInt5

public static long getInt5(byte[] data)

getInt5

public static long getInt5(byte[] data,
                           int offset)

getInt8

public static long getInt8(byte[] data)

getInt8

public static long getInt8(byte[] data,
                           int offset)

getInt

public static int getInt(int i0,
                         int i1)

getInt

public static long getInt(int i0,
                          int i1,
                          int i2)

getInt

public static long getInt(int i0,
                          int i1,
                          int i2,
                          int i3)

getInt

public static long getInt(int i0,
                          int i1,
                          int i2,
                          int i3,
                          int i4)

getInt

public static long getInt(int i0,
                          int i1,
                          int i2,
                          int i3,
                          int i4,
                          int i5,
                          int i6,
                          int i7)

getInt2BE

public static int getInt2BE(byte[] data)

getInt2BE

public static int getInt2BE(byte[] data,
                            int offset)

getInt3BE

public static long getInt3BE(byte[] data)

getInt3BE

public static long getInt3BE(byte[] data,
                             int offset)

getInt4BE

public static long getInt4BE(byte[] data)

getInt4BE

public static long getInt4BE(byte[] data,
                             int offset)

getIntBE

public static int getIntBE(int i0,
                           int i1)

getIntBE

public static long getIntBE(int i0,
                            int i1,
                            int i2)

getIntBE

public static long getIntBE(int i0,
                            int i1,
                            int i2,
                            int i3)

writeInt2

public static void writeInt2(OutputStream out,
                             int v)
                      throws IOException

Throws:

IOException

putInt2

public static void putInt2(byte[] data,
                           int offset,
                           int v)

writeInt3

public static void writeInt3(OutputStream out,
                             long v)
                      throws IOException

Throws:

IOException

putInt3

public static void putInt3(byte[] data,
                           int offset,
                           long v)

writeInt4

public static void writeInt4(OutputStream out,
                             long v)
                      throws IOException

Throws:

IOException

putInt4

public static void putInt4(byte[] data,
                           int offset,
                           long v)

writeInt5

public static void writeInt5(OutputStream out,
                             long v)
                      throws IOException

Throws:

IOException

putInt5

public static void putInt5(byte[] data,
                           int offset,
                           long v)

writeInt8

public static void writeInt8(OutputStream out,
                             long v)
                      throws IOException

Throws:

IOException

putInt8

public static void putInt8(byte[] data,
                           int offset,
                           long v)

writeInt2BE

public static void writeInt2BE(OutputStream out,
                               int v)
                        throws IOException

Throws:

IOException

putInt2BE

public static void putInt2BE(byte[] data,
                             int offset,
                             int v)

writeInt3BE

public static void writeInt3BE(OutputStream out,
                               long v)
                        throws IOException

Throws:

IOException

putInt3BE

public static void putInt3BE(byte[] data,
                             int offset,
                             long v)

writeInt4BE

public static void writeInt4BE(OutputStream out,
                               long v)
                        throws IOException

Throws:

IOException

putInt4BE

public static void putInt4BE(byte[] data,
                             int offset,
                             long v)

readUE7

public static long readUE7(InputStream stream)
                    throws IOException

Gets the integer value that is stored in UTF-8 like fashion, in Big Endian but with the high bit on each number indicating if it continues or not

Throws:

IOException

getUTF8

public static String getUTF8(byte[] data,
                             int offset,
                             int length)

Parameters:

length - The length in BYTES

removeNullPadding

public static String removeNullPadding(String str)

Strips off any null padding, if any, from the string

putUTF8

public static int putUTF8(byte[] data,
                          int offset,
                          String str)

Returns:

The length in BYTES

toUTF8Bytes

public static byte[] toUTF8Bytes(String str)

Returns:

The length in BYTES

writeUTF8

public static void writeUTF8(OutputStream out,
                             String str)
                      throws IOException

Writes the string out as UTF-8

Throws:

IOException

writeUTF8WithLength

public static void writeUTF8WithLength(OutputStream out,
                                       String str)
                                throws IOException

Writes out a 4 byte integer of the length (in bytes!) of the String, followed by the String (as UTF-8)

Throws:

IOException

byteRangeMatches

public static boolean byteRangeMatches(byte[] wanted,
                                       byte[] within,
                                       int withinOffset)

Checks to see if the wanted byte pattern is found in the within bytes from the given offset

Parameters:

wanted - Byte sequence to look for

within - Bytes to find in

withinOffset - Offset to check from