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Diffstat (limited to 'libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ASF/Object/Index.php')
| -rw-r--r-- | libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ASF/Object/Index.php | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ASF/Object/Index.php b/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ASF/Object/Index.php deleted file mode 100644 index 6ce63ca..0000000 --- a/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ASF/Object/Index.php +++ /dev/null @@ -1,185 +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 ASF - * @copyright Copyright (c) 2008 The PHP Reader Project Workgroup - * @license http://code.google.com/p/php-reader/wiki/License New BSD License - * @version $Id: Index.php 108 2008-09-05 17:00:05Z svollbehr $ - */ - -/**#@+ @ignore */ -require_once("ASF/Object.php"); -/**#@-*/ - -/** - * This top-level ASF object supplies the necessary indexing information for an - * ASF file that contains more than just a plain script-audio-video combination. - * It includes stream-specific indexing information based on an adjustable index - * entry time interval. The index is designed to be broken into blocks to - * facilitate storage that is more space-efficient by using 32-bit offsets - * relative to a 64-bit base. That is, each index block has a full 64-bit offset - * in the block header that is added to the 32-bit offsets found in each index - * entry. If a file is larger than 2^32 bytes, then multiple index blocks can be - * used to fully index the entire large file while still keeping index entry - * offsets at 32 bits. - * - * Indices into the <i>Index Object</i> are in terms of presentation times. The - * corresponding <i>Offset</i> field values of the <i>Index Entry</i> byte - * offsets that, when combined with the <i>Block Position</i> value of the - * <i>Index Block</i>, indicate the starting location in bytes of an ASF Data - * Packet relative to the start of the first ASF Data Packet in the file. - * - * An offset value of 0xFFFFFFFF is used to indicate an invalid offset value. - * Invalid offsets signify that this particular index entry does not identify a - * valid indexible point. Invalid offsets may occur for the initial index - * entries of a digital media stream whose first ASF Data Packet has a non-zero - * send time. Invalid offsets may also occur in the case where a digital media - * stream has a large gap in the presentation time of successive objects. - * - * The <i>Index Object</i> is not recommended for use with files where the - * <i>Send Time</i> of the first <i>Data Packet</i> within the <i>Data - * Object</i> has a <i>Send Time</i> value significantly greater than zero - * (otherwise the index itself will be sparse and inefficient). - * - * Any ASF file containing an <i>Index Object</i> does also contain an <i>Index - * Parameters Object</i> in its {@link ASF_Object_Header ASF Header}. - * - * @package php-reader - * @subpackage ASF - * @author Sven Vollbehr <svollbehr@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: 108 $ - */ -final class ASF_Object_Index extends ASF_Object -{ - /** - * Indicates that the index type is Nearest Past Data Packet. The Nearest - * Past Data Packet indexes point to the data packet whose presentation time - * is closest to the index entry time. - */ - const NEAREST_PAST_DATA_PACKET = 1; - - /** - * Indicates that the index type is Nearest Past Media. The Nearest Past - * Object indexes point to the closest data packet containing an entire object - * or first fragment of an object. - */ - const NEAREST_PAST_MEDIA = 2; - - /** - * Indicates that the index type is Nearest Past Cleanpoint. The Nearest Past - * Cleanpoint indexes point to the closest data packet containing an entire - * object (or first fragment of an object) that has the Cleanpoint Flag set. - * - * Nearest Past Cleanpoint is the most common type of index. - */ - const NEAREST_PAST_CLEANPOINT = 3; - - /** @var integer */ - private $_indexEntryTimeInterval; - - /** @var Array */ - private $_indexSpecifiers = array(); - - /** @var Array */ - private $_indexBlocks = array(); - - /** - * Constructs the class with given parameters and reads object related data - * from the ASF file. - * - * @param Reader $reader The reader object. - * @param Array $options The options array. - */ - public function __construct($reader, &$options = array()) - { - parent::__construct($reader, $options); - - $this->_indexEntryTimeInterval = $this->_reader->readUInt32LE(); - $indexSpecifiersCount = $this->_reader->readUInt16LE(); - $indexBlocksCount = $this->_reader->readUInt32LE(); - for ($i = 0; $i < $indexSpecifiersCount; $i++) - $this->_indexSpecifiers[] = array - ("streamNumber" => $this->_reader->readUInt16LE(), - "indexType" => $this->_reader->readUInt16LE()); - for ($i = 0; $i < $indexBlocksCount; $i++) { - $indexEntryCount = $this->_reader->readUInt32LE(); - $blockPositions = array(); - for ($i = 0; $i < $indexSpecifiersCount; $i++) - $blockPositions[] = $this->_reader->readInt64LE(); - $offsets = array(); - for ($i = 0; $i < $indexSpecifiersCount; $i++) - $offsets[] = $this->_reader->readUInt32LE(); - $this->_indexBlocks[] = array - ("blockPositions" => $blockPositions, - "indexEntryOffsets" => $offsets); - } - } - - /** - * Returns the time interval between each index entry in ms. - * - * @return integer - */ - public function getIndexEntryTimeInterval() - { - return $this->_indexEntryTimeInterval; - } - - /** - * Returns an array of index specifiers. Each entry consists of the following - * keys. - * - * o streamNumber -- Specifies the stream number that the <i>Index - * Specifiers</i> refer to. Valid values are between 1 and 127. - * - * o indexType -- Specifies the type of index. - * - * @return Array - */ - public function getIndexSpecifiers() { return $this->_indexSpecifiers; } - - /** - * Returns an array of index entries. Each entry consists of the following - * keys. - * - * o blockPositions -- Specifies a list of byte offsets of the beginnings of - * the blocks relative to the beginning of the first Data Packet (for - * example, the beginning of the Data Object + 50 bytes). - * - * o indexEntryOffsets -- Specifies the offset. An offset value of - * 0xffffffff indicates an invalid offset value. - * - * @return Array - */ - public function getIndexBlocks() { return $this->_indexBlocks; } -} |