corrade-vassal – Rev 1
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/*
* CVS identifier:
*
* $Id: EBCOTLayer.java,v 1.9 2001/05/16 09:40:58 grosbois Exp $
*
* Class: EBCOTLayer
*
* Description: Storage for layer information,
* used by EBCOTRateAllocator
*
* class that was in EBCOTRateAllocator.
*
*
* 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.
* */
using System;
namespace CSJ2K.j2k.entropy.encoder
{
/// <summary> This class holds information about each layer that is to be, or has already
/// been, allocated . It is used in the rate-allocation process to keep the
/// necessary layer information. It is used by EBCOTRateAllocator.
///
/// </summary>
/// <seealso cref="EBCOTRateAllocator">
///
/// </seealso>
class EBCOTLayer
{
/// <summary> This is the maximum number of bytes that should be allocated for this
/// and previous layers. This is actually the target length for the layer.
///
/// </summary>
internal int maxBytes;
/// <summary> The actual number of bytes which are consumed by the the current and
/// any previous layers. This is the result from a simulation when the
/// threshold for the layer has been set.
///
/// </summary>
internal int actualBytes;
/// <summary> If true the `maxBytes' value is the hard maximum and the threshold is
/// determined iteratively. If false the `maxBytes' value is a target
/// bitrate and the threshold is estimated from summary information
/// accumulated during block coding.
///
/// </summary>
internal bool optimize;
/// <summary> The rate-distortion threshold associated with the bit-stream
/// layer. When set the layer includes data up to the truncation points
/// that have a slope no smaller than 'rdThreshold'.
///
/// </summary>
internal float rdThreshold;
}
}
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