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File: src/PHPVideoToolkit/AnimatedGifTranscoderAbstract.php

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  Classes of Oliver Lillie  >  PHP Video Toolkit  >  src/PHPVideoToolkit/AnimatedGifTranscoderAbstract.php  >  Download  
File: src/PHPVideoToolkit/AnimatedGifTranscoderAbstract.php
Role: Class source
Content type: text/plain
Description: Class source
Class: PHP Video Toolkit
Manipulate and convert videos with ffmpeg program
Author: By
Last change: updated copy right years and a incorrect version number
updated version number in class files
Date: 10 months ago
Size: 3,014 bytes
 

Contents

Class file image Download
<?php
   
   
/**
     * This file is part of the PHP Video Toolkit v2 package.
     *
     * @author Oliver Lillie (aka buggedcom) <publicmail@buggedcom.co.uk>
     * @license Dual licensed under MIT and GPLv2
     * @copyright Copyright (c) 2008-2014 Oliver Lillie <http://www.buggedcom.co.uk>
     * @package PHPVideoToolkit V2
     * @version 2.1.1
     * @uses ffmpeg http://ffmpeg.sourceforge.net/
     */
    
    
namespace PHPVideoToolkit;
    
   
/**
     * This class provides generic data parsing for the output from FFmpeg.
     *
     * @access public
     * @author Oliver Lillie
     * @author Jorrit Schippers
     * @package default
     */
   
abstract class AnimatedGifTranscoderAbstract//implements AnimatedGifTranscoderInterface
   
{
        protected
$_config;
        protected
$_frames;
        protected
$_loop_count;
       
        public function
__construct(Config $config=null)
        {
           
$this->_config = $config === null ? Config::getInstance() : $config;
           
$this->_frames = array();
           
$this->_loop_count = AnimatedGif::UNLIMITED_LOOPS;
        }
       
       
/**
         * Adds a frame to the current timeline.
         *
         * @access public
         * @author Oliver Lillie
         * @param string $file_path
         * @param string $frame_delay
         * @return boolean
         */
       
public function addFrame(Image $image)
        {
           
array_push($this->_frames, $image->getMediaPath());
           
            return
$this;
        }
       
       
/**
         * Adds a frame to the current timeline.
         *
         * @access public
         * @author Oliver Lillie
         * @param string $file_path
         * @param string $frame_delay
         * @return boolean
         */
       
public function setLoopCount($loop_count)
        {
            if(
$loop_count !== null && $loop_count < -1)
            {
                throw new
Exception('The loop count cannot be less than -1. (-1 specifies unlimited looping)');
            }
           
$this->_loop_count = (int) $loop_count;
           
            return
$this;
        }
       
       
/**
         * Saves the animated gif.
         *
         * @access public
         * @author Oliver Lillie
         * @param string $save_path
         * @param float $frame_delay The delay of each frame.
         * @return Image
         */
       
public function save($save_path, $frame_delay=0.1)
        {
            if(empty(
$this->_frames) === true)
            {
                throw new
Exception('At least one frame must be added in order to save an animated gif.');
            }
           
            if(
$frame_delay < 0.001)
            {
                throw new
Exception('The frame delay must at least be 0.001.');
            }
           
            if(
is_file($save_path) === true)
            {
                throw new
Exception('The save path "'.$save_path.'" already exists.');
            }
        }
    }