Package bdsup2sub.supstream.dvd

Class SupDvdUtil

java.lang.Object

bdsup2sub.supstream.dvd.SupDvdUtil

public final class SupDvdUtil
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
private static final Configuration	configuration
private static final Logger	logger

Constructor Summary

Constructors

Modifier	Constructor	Description
private	SupDvdUtil()

Method Summary

Modifier and Type	Method	Description
static Bitmap	decodeImage(SubPictureDVD pic, FileBuffer fBuf, int transIdx)	decode caption from the input stream
private static void	decodeLine(byte[] src, int srcOfs, int srcLen, byte[] trg, int trgOfs, int width, int maxPixels)	decode one line from the RLE buffer
static Palette	decodePalette(SubPictureDVD pic, Palette pal)	create fitting four color palette for the given caption
static byte[]	encodeLines(Bitmap bm, boolean even)	Compress bitmap to RLE buffer

Methods inherited from class java.lang.Object

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

Field Details

configuration

private static final Configuration configuration

logger

private static final Logger logger

Constructor Details

SupDvdUtil

private SupDvdUtil()

Method Details

encodeLines

public static byte[] encodeLines(Bitmap bm,
 boolean even)

Compress bitmap to RLE buffer

Parameters:

bm - bitmap to compress

even - true: encode even lines, false: encode odd lines

Returns:

RLE buffer

decodePalette

public static Palette decodePalette(SubPictureDVD pic,
 Palette pal)

create fitting four color palette for the given caption

Parameters:

pic - SubPicture object containing info about the caption

pal - base palette

Returns:

decoded palette

decodeImage

public static Bitmap decodeImage(SubPictureDVD pic,
 FileBuffer fBuf,
 int transIdx)
                          throws CoreException

decode caption from the input stream

Parameters:

pic - SubPicture object containing info about the caption

transIdx - index of the transparent color

Returns:

bitmap of the decoded caption

Throws:

CoreException

decodeLine

private static void decodeLine(byte[] src,
 int srcOfs,
 int srcLen,
 byte[] trg,
 int trgOfs,
 int width,
 int maxPixels)

decode one line from the RLE buffer

Parameters:

src - source buffer

srcOfs - offset in source buffer

srcLen - length of bytes to decode in source buffer

trg - target buffer for uncompressed data

trgOfs - offset in target buffer

width - image width of encoded caption

maxPixels - maximum number of pixels in caption