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JPEG2000 support for Java Advanced Imaging Image I/O Tools API core.
This module is licensed under the [JJ2000 license](LICENSE.txt) and
is therefore NOT compatible with the GPL 3 license. It should be
compatible with the LGPL 2.1 license.
/*
* $RCSfile: StdEntropyCoderOptions.java,v $
* $Revision: 1.1 $
* $Date: 2005/02/11 05:02:05 $
* $State: Exp $
*
* Class: StdEntropyCoderOptions
*
* Description: Entropy coding engine of stripes in
* code-blocks options
*
*
*
* COPYRIGHT:
*
* This software module was originally developed by Raphaël Grosbois and
* Diego Santa Cruz (Swiss Federal Institute of Technology-EPFL); Joel
* Askelöf (Ericsson Radio Systems AB); and Bertrand Berthelot, David
* Bouchard, Félix Henry, Gerard Mozelle and Patrice Onno (Canon Research
* Centre France S.A) in the course of development of the JPEG2000
* standard as specified by ISO/IEC 15444 (JPEG 2000 Standard). This
* software module is an implementation of a part of the JPEG 2000
* Standard. Swiss Federal Institute of Technology-EPFL, Ericsson Radio
* Systems AB and Canon Research Centre France S.A (collectively JJ2000
* Partners) agree not to assert against ISO/IEC and users of the JPEG
* 2000 Standard (Users) any of their rights under the copyright, not
* including other intellectual property rights, for this software module
* with respect to the usage by ISO/IEC and Users of this software module
* or modifications thereof for use in hardware or software products
* claiming conformance to the JPEG 2000 Standard. Those intending to use
* this software module in hardware or software products are advised that
* their use may infringe existing patents. The original developers of
* this software module, JJ2000 Partners and ISO/IEC assume no liability
* for use of this software module or modifications thereof. No license
* or right to this software module is granted for non JPEG 2000 Standard
* conforming products. JJ2000 Partners have full right to use this
* software module for his/her own purpose, assign or donate this
* software module to any third party and to inhibit third parties from
* using this software module for non JPEG 2000 Standard conforming
* products. This copyright notice must be included in all copies or
* derivative works of this software module.
*
* Copyright (c) 1999/2000 JJ2000 Partners.
* */
package jj2000.j2k.entropy;
/**
* This interface define the constants that identify the possible options for
* the entropy coder, as well some fixed parameters of the JPEG 2000 entropy
* coder.
* */
public interface StdEntropyCoderOptions{
/** The flag bit to indicate that selective arithmetic coding bypass
* should be used. In this mode some of the coding passes bypass the
* arithmetic coder and raw bits are output. If this flag is turned on and
* the 'OPT_TERM_PASS' one is turned off then the any non-bypass coding
* pass before a bypass coding pass must use MQ termination. */
public final static int OPT_BYPASS = 1;
/** The flag bit to indicate that the MQ states for all contexts should be
* reset at the end of each non-bypass coding pass. */
public final static int OPT_RESET_MQ = 1<<1;
/** The flag bit to indicate that regular termination should be used. When
* this is specified termination is performed after each coding
* pass. Termination is applied to both arithmetically coded and bypass
* (i.e. raw) passes . */
public final static int OPT_TERM_PASS = 1<<2;
/** The flag bit to indicate the vertically stripe-causal context
* formation should be used. */
public final static int OPT_VERT_STR_CAUSAL = 1<<3;
/** The flag bit to indicate that error resilience info is embedded on MQ
* termination. The predictable error-resilient MQ termination at the
* encoder is necessary in this case. */
public final static int OPT_PRED_TERM = 1<<4;
/** The flag bit to indicate that a segmentation marker is to be
* inserted at the end of each normalization coding pass. The segment
* marker is the four symbol sequence 1010 that are sent through the MQ
* coder using the UNIFORM context. */
public final static int OPT_SEG_SYMBOLS = 1<<5;
/** The minimum code-block dimension. The nominal width or height of a
* code-block must never be less than this. It is 4. */
public static final int MIN_CB_DIM = 4;
/** The maximum code-block dimension. No code-block should be larger,
* either in width or height, than this value. It is 1024. */
public static final int MAX_CB_DIM = 1024;
/** The maximum code-block area (width x height). The surface covered by
* a nominal size block should never be larger than this. It is 4096 */
public static final int MAX_CB_AREA = 4096;
/** The stripe height. This is the nominal value of the stripe height. It
* is 4. */
public static final int STRIPE_HEIGHT = 4;
/** The number of coding passes per bit-plane. This is the number of
* passes per bit-plane. It is 3. */
public static final int NUM_PASSES = 3;
/** The number of most significant bit-planes where bypass mode is not to
* be used, even if bypass mode is on: 4. */
public static final int NUM_NON_BYPASS_MS_BP = 4;
/** The number of empty passes in the most significant bit-plane. It is
2. */
public static final int NUM_EMPTY_PASSES_IN_MS_BP = 2;
/** The index of the first "raw" pass, if bypass mode is on. */
public static final int FIRST_BYPASS_PASS_IDX =
NUM_PASSES*NUM_NON_BYPASS_MS_BP-NUM_EMPTY_PASSES_IN_MS_BP;
}