Source Code Cross Referenced for StdEntropyCoderOptions.java in  » 6.0-JDK-Modules » Java-Advanced-Imaging » jj2000 » j2k » entropy » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Modules » Java Advanced Imaging » jj2000.j2k.entropy 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * $RCSfile: StdEntropyCoderOptions.java,v $
003:         * $Revision: 1.1 $
004:         * $Date: 2005/02/11 05:02:05 $
005:         * $State: Exp $
006:         *
007:         * Class:                   StdEntropyCoderOptions
008:         *
009:         * Description:             Entropy coding engine of stripes in
010:         *                          code-blocks options
011:         *
012:         *
013:         *
014:         * COPYRIGHT:
015:         *
016:         * This software module was originally developed by Raphaël Grosbois and
017:         * Diego Santa Cruz (Swiss Federal Institute of Technology-EPFL); Joel
018:         * Askelöf (Ericsson Radio Systems AB); and Bertrand Berthelot, David
019:         * Bouchard, Félix Henry, Gerard Mozelle and Patrice Onno (Canon Research
020:         * Centre France S.A) in the course of development of the JPEG2000
021:         * standard as specified by ISO/IEC 15444 (JPEG 2000 Standard). This
022:         * software module is an implementation of a part of the JPEG 2000
023:         * Standard. Swiss Federal Institute of Technology-EPFL, Ericsson Radio
024:         * Systems AB and Canon Research Centre France S.A (collectively JJ2000
025:         * Partners) agree not to assert against ISO/IEC and users of the JPEG
026:         * 2000 Standard (Users) any of their rights under the copyright, not
027:         * including other intellectual property rights, for this software module
028:         * with respect to the usage by ISO/IEC and Users of this software module
029:         * or modifications thereof for use in hardware or software products
030:         * claiming conformance to the JPEG 2000 Standard. Those intending to use
031:         * this software module in hardware or software products are advised that
032:         * their use may infringe existing patents. The original developers of
033:         * this software module, JJ2000 Partners and ISO/IEC assume no liability
034:         * for use of this software module or modifications thereof. No license
035:         * or right to this software module is granted for non JPEG 2000 Standard
036:         * conforming products. JJ2000 Partners have full right to use this
037:         * software module for his/her own purpose, assign or donate this
038:         * software module to any third party and to inhibit third parties from
039:         * using this software module for non JPEG 2000 Standard conforming
040:         * products. This copyright notice must be included in all copies or
041:         * derivative works of this software module.
042:         *
043:         * Copyright (c) 1999/2000 JJ2000 Partners.
044:         * */
045:
046:        package jj2000.j2k.entropy;
047:
048:        /**
049:         * This interface define the constants that identify the possible options for
050:         * the entropy coder, as well some fixed parameters of the JPEG 2000 entropy
051:         * coder.
052:         * */
053:        public interface StdEntropyCoderOptions {
054:
055:            /** The flag bit to indicate that selective arithmetic coding bypass
056:             * should be used. In this mode some of the coding passes bypass the
057:             * arithmetic coder and raw bits are output. If this flag is turned on and
058:             * the 'OPT_TERM_PASS' one is turned off then the any non-bypass coding
059:             * pass before a bypass coding pass must use MQ termination. */
060:            public final static int OPT_BYPASS = 1;
061:
062:            /** The flag bit to indicate that the MQ states for all contexts should be
063:             * reset at the end of each non-bypass coding pass. */
064:            public final static int OPT_RESET_MQ = 1 << 1;
065:
066:            /** The flag bit to indicate that regular termination should be used. When
067:             * this is specified termination is performed after each coding
068:             * pass. Termination is applied to both arithmetically coded and bypass
069:             * (i.e. raw) passes . */
070:            public final static int OPT_TERM_PASS = 1 << 2;
071:
072:            /** The flag bit to indicate the vertically stripe-causal context
073:             * formation should be used. */
074:            public final static int OPT_VERT_STR_CAUSAL = 1 << 3;
075:
076:            /** The flag bit to indicate that error resilience info is embedded on MQ
077:             * termination. The predictable error-resilient MQ termination at the
078:             * encoder is necessary in this case. */
079:            public final static int OPT_PRED_TERM = 1 << 4;
080:
081:            /** The flag bit to indicate that a segmentation marker is to be
082:             * inserted at the end of each normalization coding pass. The segment
083:             * marker is the four symbol sequence 1010 that are sent through the MQ
084:             * coder using the UNIFORM context. */
085:            public final static int OPT_SEG_SYMBOLS = 1 << 5;
086:
087:            /** The minimum code-block dimension. The nominal width or height of a
088:             * code-block must never be less than this. It is 4. */
089:            public static final int MIN_CB_DIM = 4;
090:
091:            /** The maximum code-block dimension. No code-block should be larger,
092:             * either in width or height, than this value. It is 1024. */
093:            public static final int MAX_CB_DIM = 1024;
094:
095:            /** The maximum code-block area (width x height). The surface covered by
096:             * a nominal size block should never be larger than this. It is 4096 */
097:            public static final int MAX_CB_AREA = 4096;
098:
099:            /** The stripe height. This is the nominal value of the stripe height. It
100:             * is 4. */
101:            public static final int STRIPE_HEIGHT = 4;
102:
103:            /** The number of coding passes per bit-plane. This is the number of
104:             * passes per bit-plane. It is 3. */
105:            public static final int NUM_PASSES = 3;
106:
107:            /** The number of most significant bit-planes where bypass mode is not to
108:             * be used, even if bypass mode is on: 4. */
109:            public static final int NUM_NON_BYPASS_MS_BP = 4;
110:
111:            /** The number of empty passes in the most significant bit-plane. It is
112:                2. */
113:            public static final int NUM_EMPTY_PASSES_IN_MS_BP = 2;
114:
115:            /** The index of the first "raw" pass, if bypass mode is on. */
116:            public static final int FIRST_BYPASS_PASS_IDX = NUM_PASSES
117:                    * NUM_NON_BYPASS_MS_BP - NUM_EMPTY_PASSES_IN_MS_BP;
118:
119:        }
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