org.jcodec.codecs.h264.decode.deblock

Class DeblockingFilter

java.lang.Object

org.jcodec.codecs.h264.decode.deblock.DeblockingFilter

public class DeblockingFilter
extends Object

This class is part of JCodec ( www.jcodec.org ) This software is distributed under FreeBSD License A filter that removes DCT artifacts on block boundaries. It's operation is dependant on QP and is designed the way that the strenth is adjusted to the likelyhood of appearence of blocking artifacts on the specific edges. Builds a parameter for deblocking filter based on the properties of specific macroblocks. A parameter specifies the behavior of deblocking filter on each of 8 edges that need to filtered for a macroblock. For each edge the following things are evaluated on it's both sides: presence of DCT coded residual; motion vector difference; spatial location.

Author:

The JCodec project

Field Summary

Fields

Modifier and Type	Field and Description
static int[]	alphaTab
static int[]	betaTab
static int[][]	tcs

Constructor Summary

Constructors

Constructor and Description
DeblockingFilter(int bitDepthLuma, int bitDepthChroma, DeblockerInput di)

Method Summary

Modifier and Type	Method and Description
void	deblockFrame(Picture result)
static void	filterBs(int bs, int indexAlpha, int indexBeta, byte[] pelsP, byte[] pelsQ, int p2Idx, int p1Idx, int p0Idx, int q0Idx, int q1Idx, int q2Idx, boolean isChroma)
static void	filterBs4(int indexAlpha, int indexBeta, byte[] pelsP, byte[] pelsQ, int p3Idx, int p2Idx, int p1Idx, int p0Idx, int q0Idx, int q1Idx, int q2Idx, int q3Idx, boolean isChroma)

Methods inherited from class java.lang.Object

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

Field Detail

alphaTab

public static int[] alphaTab

betaTab

public static int[] betaTab

tcs

public static int[][] tcs

Constructor Detail

DeblockingFilter

public DeblockingFilter(int bitDepthLuma,
                        int bitDepthChroma,
                        DeblockerInput di)

Method Detail

deblockFrame

public void deblockFrame(Picture result)

filterBs

public static void filterBs(int bs,
                            int indexAlpha,
                            int indexBeta,
                            byte[] pelsP,
                            byte[] pelsQ,
                            int p2Idx,
                            int p1Idx,
                            int p0Idx,
                            int q0Idx,
                            int q1Idx,
                            int q2Idx,
                            boolean isChroma)

filterBs4

public static void filterBs4(int indexAlpha,
                             int indexBeta,
                             byte[] pelsP,
                             byte[] pelsQ,
                             int p3Idx,
                             int p2Idx,
                             int p1Idx,
                             int p0Idx,
                             int q0Idx,
                             int q1Idx,
                             int q2Idx,
                             int q3Idx,
                             boolean isChroma)