Pdf/Filter/Compression.php

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Zend Framework
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Category
Zend  
Copyright
Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)  
License
New BSD License  
Package
Zend_Pdf  
Version
$Id$  

\Zend_Pdf_Filter_Compression

Package: Zend_Pdf
ASCII85 stream filter
Implements
Children
\Zend_Pdf_Filter_Compression_Flate
\Zend_Pdf_Filter_Compression_Lzw
Copyright
Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)  
License
New BSD License  

Methods

methodprotected_applyDecodeParams(string $data, array $params) : string
static

Convert stream data according to the filter params set after decoding.

Parameters
NameTypeDescription
$datastring
$paramsarray
Returns
TypeDescription
string
methodprotected_applyEncodeParams(string $data, array $params) : string
static

Convert stream data according to the filter params set before encoding.

Parameters
NameTypeDescription
$datastring
$paramsarray
Returns
TypeDescription
string
Throws
ExceptionDescription
\Zend_Pdf_Exception
methodprivate_getBitsPerComponentValue(array $params) : integer
static

Get BitsPerComponent decode param value

Parameters
NameTypeDescription
$paramsarray
Returns
TypeDescription
integer
Throws
ExceptionDescription
\Zend_Pdf_Exception
methodprivate_getColorsValue(array $params) : integer
static

Get Colors decode param value

Parameters
NameTypeDescription
$paramsarray
Returns
TypeDescription
integer
Throws
ExceptionDescription
\Zend_Pdf_Exception
methodprivate_getColumnsValue(array $params) : integer
static

Get Columns decode param value

Parameters
NameTypeDescription
$paramsarray
Returns
TypeDescription
integer
methodprivate_getPredictorValue(array $params) : integer
static

Get Predictor decode param value

Parameters
NameTypeDescription
$paramsarray
Returns
TypeDescription
integer
Throws
ExceptionDescription
\Zend_Pdf_Exception
methodprivate_paeth(integer $a, integer $b, integer $c) : integer
static

Paeth prediction function

Parameters
NameTypeDescription
$ainteger
$binteger
$cinteger
Returns
TypeDescription
integer
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