Add Zend_Media_Mpeg class proposal

git-svn-id: http://php-reader.googlecode.com/svn/branches/zend@172 51a70ab9-7547-0410-9469-37e369ee0574

src/Zend/Media/Mpeg/Abs/Object.php

@@ -0,0 +1,150 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Media
+ * @subpackage MPEG
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) 
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+/**#@+ @ignore */
+require_once 'Zend/Media/Mpeg/Object.php';
+/**#@-*/
+
+/**
+ * The base class for all MPEG Audio Bit Stream objects.
+ *
+ * @category   Zend
+ * @package    Zend_Media
+ * @subpackage MPEG
+ * @author     Ryan Butterfield <buttza@gmail.com>
+ * @author     Sven Vollbehr <sven@vollbehr.eu>
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) 
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+abstract class Zend_Media_Mpeg_Abs_Object extends Zend_Media_Mpeg_Object
+{
+    /** @var integer */
+    const VERSION_ONE = 3;
+
+    /** @var integer */
+    const VERSION_TWO = 2;
+
+    /** @var integer */
+    const VERSION_TWO_FIVE = 0;
+
+    /** @var integer */
+    const SAMPLING_FREQUENCY_LOW = 0;
+
+    /** @var integer */
+    const SAMPLING_FREQUENCY_HIGH = 1;
+
+    /** @var integer */
+    const LAYER_ONE = 3;
+
+    /** @var integer */
+    const LAYER_TWO = 2;
+
+    /** @var integer */
+    const LAYER_THREE = 1;
+
+    /** @var integer */
+    const CHANNEL_STEREO = 0;
+
+    /** @var integer */
+    const CHANNEL_JOINT_STEREO = 1;
+
+    /** @var integer */
+    const CHANNEL_DUAL_CHANNEL = 2;
+
+    /** @var integer */
+    const CHANNEL_SINGLE_CHANNEL = 3;
+
+    /** @var integer */
+    const MODE_SUBBAND_4_TO_31 = 0;
+
+    /** @var integer */
+    const MODE_SUBBAND_8_TO_31 = 1;
+
+    /** @var integer */
+    const MODE_SUBBAND_12_TO_31 = 2;
+
+    /** @var integer */
+    const MODE_SUBBAND_16_TO_31 = 3;
+
+    /** @var integer */
+    const MODE_ISOFF_MSSOFF = 0;
+
+    /** @var integer */
+    const MODE_ISON_MSSOFF = 1;
+
+    /** @var integer */
+    const MODE_ISOFF_MSSON = 2;
+
+    /** @var integer */
+    const MODE_ISON_MSSON = 3;
+
+    /** @var integer */
+    const EMPHASIS_NONE = 0;
+
+    /** @var integer */
+    const EMPHASIS_50_15 = 1;
+
+    /** @var integer */
+    const EMPHASIS_CCIT_J17 = 3;
+
+    /**
+     * Layer III side information size lookup table.  The table has the
+     * following format.
+     *
+     * <code>
+     * array (
+     *   SAMPLING_FREQUENCY_HIGH | SAMPLING_FREQUENCY_LOW => array (
+     *     CHANNEL_STEREO | CHANNEL_JOINT_STEREO | CHANNEL_DUAL_CHANNEL |
+     *       CHANNEL_SINGLE_CHANNEL => <size>
+     *   )
+     * )
+     * </code>
+     *
+     * @var Array
+     */
+    protected static $sidesizes = array(
+        self::SAMPLING_FREQUENCY_HIGH => array(
+            self::CHANNEL_STEREO => 32,
+            self::CHANNEL_JOINT_STEREO => 32,
+            self::CHANNEL_DUAL_CHANNEL => 32,
+            self::CHANNEL_SINGLE_CHANNEL => 17
+        ),
+        self::SAMPLING_FREQUENCY_LOW => array(
+            self::CHANNEL_STEREO => 17,
+            self::CHANNEL_JOINT_STEREO => 17,
+            self::CHANNEL_DUAL_CHANNEL => 17,
+            self::CHANNEL_SINGLE_CHANNEL => 9
+        )
+    );
+
+    /**
+     * Constructs the class with given parameters.
+     *
+     * @param Zend_Io_Reader $reader The reader object.
+     * @param Array          $options The options array.
+     */
+    public function __construct($reader, &$options = array())
+    {
+        parent::__construct($reader, $options);
+    }
+}