Reverb is yet another subjective frame, with which you can adjust * echoes of different kinds. Reverb left/right is the delay between every * bounce in milliseconds. Reverb bounces left/right is the number of bounces * that should be made. $FF equals an infinite number of bounces. Feedback is * the amount of volume that should be returned to the next echo bounce. $00 is * 0%, $FF is 100%. If this value were $7F, there would be 50% volume reduction * on the first bounce, 50% of that on the second and so on. Left to left means * the sound from the left bounce to be played in the left speaker, while left * to right means sound from the left bounce to be played in the right speaker. * * Premix left to right is the amount of left sound to be mixed in the right * before any reverb is applied, where $00 id 0% and $FF is 100%. Premix right * to left does the same thing, but right to left. Setting both premix to $FF * would result in a mono output (if the reverb is applied symmetric). There may * only be one RVRB frame in each tag. * * @package php-reader * @subpackage ID3 * @author Sven Vollbehr * @author Ryan Butterfield * @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 $ */ final class ID3_Frame_RVRB extends ID3_Frame { /** @var integer */ private $_reverbLeft; /** @var integer */ private $_reverbRight; /** @var integer */ private $_reverbBouncesLeft; /** @var integer */ private $_reverbBouncesRight; /** @var integer */ private $_reverbFeedbackLtoL; /** @var integer */ private $_reverbFeedbackLtoR; /** @var integer */ private $_reverbFeedbackRtoR; /** @var integer */ private $_reverbFeedbackRtoL; /** @var integer */ private $_premixLtoR; /** @var integer */ private $_premixRtoL; /** * 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; $this->_reverbLeft = Transform::fromUInt16BE(substr($this->_data, 0, 2)); $this->_reverbRight = Transform::fromUInt16BE(substr($this->_data, 2, 2)); $this->_reverbBouncesLeft = Transform::fromUInt8($this->_data[4]); $this->_reverbBouncesRight = Transform::fromUInt8($this->_data[5]); $this->_reverbFeedbackLtoL = Transform::fromUInt8($this->_data[6]); $this->_reverbFeedbackLtoR = Transform::fromUInt8($this->_data[7]); $this->_reverbFeedbackRtoR = Transform::fromUInt8($this->_data[8]); $this->_reverbFeedbackRtoL = Transform::fromUInt8($this->_data[9]); $this->_premixLtoR = Transform::fromUInt8($this->_data[10]); $this->_premixRtoL = Transform::fromUInt8($this->_data[11]); } /** * Returns the left reverb. * * @return integer */ public function getReverbLeft() { return $this->_reverbLeft; } /** * Sets the left reverb. * * @param integer $reverbLeft The left reverb. */ public function setReverbLeft($reverbLeft) { return $this->_reverbLeft = $reverbLeft; } /** * Returns the right reverb. * * @return integer */ public function getReverbRight() { return $this->_reverbRight; } /** * Sets the right reverb. * * @param integer $reverbRight The right reverb. */ public function setReverbRight($reverbRight) { return $this->_reverbRight = $reverbRight; } /** * Returns the left reverb bounces. * * @return integer */ public function getReverbBouncesLeft() { return $this->_reverbBouncesLeft; } /** * Sets the left reverb bounces. * * @param integer $reverbBouncesLeft The left reverb bounces. */ public function setReverbBouncesLeft($reverbBouncesLeft) { $this->_reverbBouncesLeft = $reverbBouncesLeft; } /** * Returns the right reverb bounces. * * @return integer */ public function getReverbBouncesRight() { return $this->_reverbBouncesRight; } /** * Sets the right reverb bounces. * * @param integer $reverbBouncesRight The right reverb bounces. */ public function setReverbBouncesRight($reverbBouncesRight) { $this->_reverbBouncesRight = $reverbBouncesRight; } /** * Returns the left-to-left reverb feedback. * * @return integer */ public function getReverbFeedbackLtoL() { return $this->_reverbFeedbackLtoL; } /** * Sets the left-to-left reverb feedback. * * @param integer $reverbFeedbackLtoL The left-to-left reverb feedback. */ public function setReverbFeedbackLtoL($reverbFeedbackLtoL) { $this->_reverbFeedbackLtoL = $reverbFeedbackLtoL; } /** * Returns the left-to-right reverb feedback. * * @return integer */ public function getReverbFeedbackLtoR() { return $this->_reverbFeedbackLtoR; } /** * Sets the left-to-right reverb feedback. * * @param integer $reverbFeedbackLtoR The left-to-right reverb feedback. */ public function setReverbFeedbackLtoR($reverbFeedbackLtoR) { $this->_reverbFeedbackLtoR = $reverbFeedbackLtoR; } /** * Returns the right-to-right reverb feedback. * * @return integer */ public function getReverbFeedbackRtoR() { return $this->_reverbFeedbackRtoR; } /** * Sets the right-to-right reverb feedback. * * @param integer $reverbFeedbackRtoR The right-to-right reverb feedback. */ public function setReverbFeedbackRtoR($reverbFeedbackRtoR) { $this->_reverbFeedbackRtoR = $reverbFeedbackRtoR; } /** * Returns the right-to-left reverb feedback. * * @return integer */ public function getReverbFeedbackRtoL() { return $this->_reverbFeedbackRtoL; } /** * Sets the right-to-left reverb feedback. * * @param integer $reverbFeedbackRtoL The right-to-left reverb feedback. */ public function setReverbFeedbackRtoL($reverbFeedbackRtoL) { $this->_reverbFeedbackRtoL = $reverbFeedbackRtoL; } /** * Returns the left-to-right premix. * * @return integer */ public function getPremixLtoR() { return $this->_premixLtoR; } /** * Sets the left-to-right premix. * * @param integer $premixLtoR The left-to-right premix. */ public function setPremixLtoR($premixLtoR) { $this->_premixLtoR = $premixLtoR; } /** * Returns the right-to-left premix. * * @return integer */ public function getPremixRtoL() { return $this->_premixRtoL; } /** * Sets the right-to-left premix. * * @param integer $premixRtoL The right-to-left premix. */ public function setPremixRtoL($premixRtoL) { $this->_premixRtoL = $premixRtoL; } /** * Returns the frame raw data. * * @return string */ public function __toString() { $this->setData (Transform::toUInt16BE($this->_reverbLeft) . Transform::toUInt16BE($this->_reverbRight) . Transform::toUInt8($this->_reverbBouncesLeft) . Transform::toUInt8($this->_reverbBouncesRight) . Transform::toUInt8($this->_reverbFeedbackLtoL) . Transform::toUInt8($this->_reverbFeedbackLtoR) . Transform::toUInt8($this->_reverbFeedbackRtoR) . Transform::toUInt8($this->_reverbFeedbackRtoL) . Transform::toUInt8($this->_premixLtoR) . Transform::toUInt8($this->_premixRtoL)); return parent::__toString(); } }