org.jcodec.codecs.png

Class PNGDecoder

java.lang.Object

org.jcodec.common.VideoDecoder

org.jcodec.codecs.png.PNGDecoder

public class PNGDecoder
extends VideoDecoder

This class is part of JCodec ( www.jcodec.org ) This software is distributed under FreeBSD License PNG image decoder. Supports: RGB, palette, grey, alpha, interlace, transparency.

Author:

Stanislav Vitvitskyy

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	PNGDecoder.TRNS Transparency descriptor for paletted data

Constructor Summary

Constructors

Constructor and Description
PNGDecoder()

Method Summary

Modifier and Type	Method and Description
Picture	decodeFrame(ByteBuffer data, byte[][] buffer) Decodes a video frame to an uncompressed picture in codec native colorspace
static byte[]	deflate(byte[] data, Inflater inflater)
VideoCodecMeta	getCodecMeta(ByteBuffer _data)
static int	probe(ByteBuffer data)

Methods inherited from class org.jcodec.common.VideoDecoder

downscaled, getSameSizeBuffer

Methods inherited from class java.lang.Object

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

Constructor Detail

PNGDecoder

public PNGDecoder()

Method Detail

decodeFrame

public Picture decodeFrame(ByteBuffer data,
                           byte[][] buffer)

Description copied from class: VideoDecoder

Decodes a video frame to an uncompressed picture in codec native colorspace

Specified by:

decodeFrame in class VideoDecoder

Parameters:

data - Compressed frame data

getCodecMeta

public VideoCodecMeta getCodecMeta(ByteBuffer _data)

Specified by:

getCodecMeta in class VideoDecoder

probe

public static int probe(ByteBuffer data)

deflate

public static byte[] deflate(byte[] data,
                             Inflater inflater)
                      throws DataFormatException

Throws:

DataFormatException