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diff --git a/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ID3/Frame/SIGN.php b/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ID3/Frame/SIGN.php
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index ff37c63..0000000
--- a/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ID3/Frame/SIGN.php
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@@ -1,122 +0,0 @@
-<?php
-/**
- * PHP Reader Library
- *
- * Copyright (c) 2008 The PHP Reader Project Workgroup. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * - Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * - Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * - Neither the name of the project workgroup nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- * @package php-reader
- * @subpackage ID3
- * @copyright Copyright (c) 2008 The PHP Reader Project Workgroup
- * @license http://code.google.com/p/php-reader/wiki/License New BSD License
- * @version $Id: SIGN.php 105 2008-07-30 14:56:47Z svollbehr $
- * @since ID3v2.4.0
- */
-
-/**#@+ @ignore */
-require_once("ID3/Frame.php");
-/**#@-*/
-
-/**
- * This frame enables a group of frames, grouped with the
- * <i>Group identification registration</i>, to be signed. Although signatures
- * can reside inside the registration frame, it might be desired to store the
- * signature elsewhere, e.g. in watermarks. There may be more than one signature
- * frame in a tag, but no two may be identical.
- *
- * @package php-reader
- * @subpackage ID3
- * @author Sven Vollbehr <svollbehr@gmail.com>
- * @author Ryan Butterfield <buttza@gmail.com>
- * @copyright Copyright (c) 2008 The PHP Reader Project Workgroup
- * @license http://code.google.com/p/php-reader/wiki/License New BSD License
- * @version $Rev: 105 $
- * @since ID3v2.4.0
- */
-final class ID3_Frame_SIGN extends ID3_Frame
-{
- /** @var integer */
- private $_group;
-
- /** @var string */
- private $_signature;
-
- /**
- * Constructs the class with given parameters and parses object related data.
- *
- * @param Reader $reader The reader object.
- * @param Array $options The options array.
- */
- public function __construct($reader = null, &$options = array())
- {
- parent::__construct($reader, $options);
-
- if ($reader === null)
- return;
-
- $this->_group = Transform::fromUInt8(substr($this->_data, 0, 1));
- $this->_signature = substr($this->_data, 1);
- }
-
- /**
- * Returns the group symbol byte.
- *
- * @return integer
- */
- public function getGroup() { return $this->_group; }
-
- /**
- * Sets the group symbol byte.
- *
- * @param integer $group The group symbol byte.
- */
- public function setGroup($group) { $this->_group = $group; }
-
- /**
- * Returns the signature binary data.
- *
- * @return string
- */
- public function getSignature() { return $this->_signature; }
-
- /**
- * Sets the signature binary data.
- *
- * @param string $signature The signature binary data string.
- */
- public function setSignature($signature) { $this->_signature = $signature; }
-
- /**
- * Returns the frame raw data.
- *
- * @return string
- */
- public function __toString()
- {
- $this->setData(Transform::toUInt8($this->_group) . $this->_signature);
- return parent::__toString();
- }
-}