Added phpvideotoolkit transcoder and updates to the preset ui

1 files changed, 325 insertions, 0 deletions

diff --git a/libraries/phpvideotoolkit/adapters/toolkit/frame.php b/libraries/phpvideotoolkit/adapters/toolkit/frame.php
new file mode 100644
index 0000000..ecbed92
--- /dev/null
+++ b/libraries/phpvideotoolkit/adapters/toolkit/frame.php
@@ -0,0 +1,325 @@
+<?php
+
+	/* SVN FILE: $Id$ */
+	/**
+	 * @author Oliver Lillie (aka buggedcom) <publicmail@buggedcom.co.uk>
+	 * @package PHPVideoToolkit
+	 * @license BSD
+	 * @copyright Copyright (c) 2008 Oliver Lillie <http://www.buggedcom.co.uk>
+	 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation
+	 * files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy,
+	 * modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software
+	 * is furnished to do so, subject to the following conditions:  The above copyright notice and this permission notice shall be
+	 * included in all copies or substantial portions of the Software.
+	 *
+	 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+	 * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+	 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+	 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+	 */
+	
+	/**
+	 * This is similar in terms to FFmpeg-PHP's ffmpeg_frame, however the constructor can accept any number of items such as 
+	 * a GD image, an image file, or an instance of PHPVideoToolkit, note if using an instance of PHPVideoToolkit you must
+	 * have already specified the frame you wish to extract with PHPVideoToolkit::extractFrame() or set 
+	 */
+	class PHPVideoToolkit_Frame
+	{
+		
+		private $_resource 			= null;
+		private $_gd_resource		= null;
+		private $_resource_type		= null;
+		private $_width 			= null;
+		private $_height 			= null;
+		private $_timecode			= null;
+		
+		/**
+		 * Class Constructor
+		 * @param resource $gd_resource A GD image resource.
+		 * @param integer $timecode The time in seconds of the frame. If false and the $resource is a PHPVideoToolkit instance then the timecode will be retrieved from
+		 * 	the instance. However if $timecode is set and the $resource is a PHPVideoToolkit the $timecode will override the time retrieved from the instance.
+		 */
+		function __construct($resource, $timecode=false)
+		{
+// 			is this a gd resource
+			if(is_resource($resource) && get_resource_type($resource) == 'gd')
+			{
+				$this->_gd_resource		= $resource;
+				$this->_resource_type 	= 'gd';
+				$this->_width  			= imagesx($resource);
+				$this->_height 			= imagesy($resource);
+				$this->_timecode		= $timecode;
+			}
+// 			is this a gd resource
+			else if(is_string($resource) && is_file($resource))
+			{
+				$this->_resource_type 	= 'file';
+				$dimensions				= getimagesize($resource);
+				$this->_width  			= $dimensions[0];
+				$this->_height 			= $dimensions[1];
+				$this->_timecode		= $timecode;
+			}
+// 			check for PHPVideoToolkit class instance
+			else if(get_class($resource) == 'PHPVideoToolkit')
+			{
+				$info = $resource->getFileInfo();
+				if(!$info)
+				{
+// 					throw error
+				}
+				if(!isset($info['video']))
+				{
+// 					throw error
+				}
+				$this->_resource 		= $resource;
+				$this->_resource_type 	= 'toolkit';
+				$this->_width  			= $info['video']['dimensions']['width'];
+				$this->_height 			= $info['video']['dimensions']['height'];
+// 				set the timecode, the $timecode value will override
+				$set_timecode			= $resource->hasCommand('-ss');
+				$this->_timecode		= $timecode === false && $set_timecode !== false ? $set_timecode : $timecode;
+			}
+// 			isn't a valid resource type so throw error
+			else
+			{
+// 				throw error
+			}
+		}
+		
+		/**
+		 * Destroys any gd resource if made
+		 */
+		function __destruct()
+		{
+			if($this->_resource_type == 'gd' && is_resource($this->_resource))
+			{
+				imagedestroy($this->_resource);
+			}
+		}
+		
+		/**
+		 * Determines if the resource supplied to the frame is valid.
+		 * @access public
+		 * @return integer
+		 */
+		public function hasValidResource()
+		{
+			return $this->_resource_type !== null;
+		}
+		
+		/**
+		 * Return the width of the frame.
+		 * @access public
+		 * @return integer
+		 */
+		public function getWidth()
+		{
+			return $this->_width;
+		}
+		
+		/**
+		 * Return the height of the frame.
+		 * @access public
+		 * @return integer
+		 */
+		public function getHeight()
+		{
+			return $this->_height;
+		}
+		
+		/**
+		 * Return the presentation time stamp of the frame.
+		 * @access public
+		 * @uses ffmpeg_frame::getPTS()
+		 * @return integer
+		 */
+		public function getPresentationTimestamp()
+		{
+			return $this->getPTS();
+		}
+		
+		/**
+		 * Return the presentation time stamp of the frame.
+		 * @access public
+		 * @return integer
+		 */
+		public function getPTS()
+		{
+			return $this->_timecode;
+		}
+		
+		/**
+		 * Determines if the current frame is a keyframe.
+		 * @access public
+		 * @return integer
+		 */
+		public function isKeyFrame()
+		{
+			return false;
+		}
+		
+		/**
+		 * Resize and optionally crop the frame.
+		 * NOTE 1: Cropping is always applied to the frame before it is resized.
+		 * NOTE 2: Crop values must be even numbers.
+		 * @access public
+		 * @param integer $width New width of the frame (must be an even number).
+		 * @param integer $height New height of the frame (must be an even number).
+		 * @param integer $crop_top Remove [croptop] rows of pixels from the top of the frame.
+		 * @param integer $crop_bottom Remove [cropbottom] rows of pixels from the bottom of the frame.
+		 * @param integer $crop_left Remove [cropleft] rows of pixels from the left of the frame.
+		 * @param integer $crop_right Remove [cropright] rows of pixels from the right of the frame. 
+		 * @return boolean
+		 */
+		public function resize($width, $height, $crop_top=false, $crop_bottom=false, $crop_left=false, $crop_right=false)
+		{
+// 			generate a GD resource
+			$this->_generateGDImageFromResource();
+// 			are we cropping?
+			if($crop_top !== false || $crop_bottom !== false || $crop_left !== false || $crop_right !== false)
+			{
+// 				crop and check it went ok
+				if(!$this->crop($crop_top, $crop_bottom, $crop_left, $crop_right))
+				{
+					return false;
+				}
+			}
+// 			check the width and height
+			if($width <= 0 || $height <= 0)
+			{
+				return false;
+			}
+// 			now resize what we have
+			$resize_resource = imagecreatetruecolor($width, $height);
+// 			copy the portion we want
+			imagecopyresampled($resize_resource, $this->_gd_resource, 0, 0, 0, 0, $width, $height, $this->_width, $this->_height);
+// 			destroy the old crop resource to free up memory
+			imagedestroy($this->_gd_resource);
+// 			save the new resource
+			$this->_gd_resource = $resize_resource;
+// 			update the saved width and height
+			$this->_width  	= $width;
+			$this->_height 	= $height;
+			return true;
+		}
+		
+		/**
+		 * Crop the frame.
+		 * @access public
+		 * @param integer $crop_top Remove [croptop] rows of pixels from the top of the frame.
+		 * @param integer $crop_bottom Remove [cropbottom] rows of pixels from the bottom of the frame.
+		 * @param integer $crop_left Remove [cropleft] rows of pixels from the left of the frame.
+		 * @param integer $crop_right Remove [cropright] rows of pixels from the right of the frame. 
+		 * @return boolean
+		 */
+		public function crop($crop_top=false, $crop_bottom=false, $crop_left=false, $crop_right=false)
+		{
+// 			generate a GD resource
+			$this->_generateGDImageFromResource();
+// 			work out the newwidth and height and positions
+			$w = $this->_width;
+			$h = $this->_height;
+			$x = 0;
+			$y = 0;
+			$x_bottom_chord = 0;
+			if($crop_top !== false)
+			{
+				$x = $crop_top;
+				$h -= $crop_top;
+			}
+			if($crop_bottom !== false)
+			{
+				$h -= $crop_bottom;
+			}
+			if($crop_left !== false)
+			{
+				$y = $crop_left;
+				$w -= $crop_left;
+			}
+			if($crop_right !== false)
+			{
+				$w -= $crop_left;
+			}
+// 			is the width and height greater than 0
+			if($w < 0 || $h < 0)
+			{
+				return false;
+			}
+// 			create the new image resource
+			$crop_resource = imagecreatetruecolor($w, $h);
+// 			copy the portion we want
+			imagecopyresampled($crop_resource, $this->_gd_resource, 0, 0, $x, $y, $w, $h, $w, $h);
+// 			destroy the old resource to free up memory
+			imagedestroy($this->_gd_resource);
+// 			save the new resource
+			$this->_gd_resource = $crop_resource;
+// 			update the saved width and height
+			$this->_width  	= $w;
+			$this->_height 	= $h;
+			return true;
+		}
+		
+		/**
+		 * Returns a truecolor GD image of the frame.
+		 * @access public
+		 * @return resource Returns a GD resource.
+		 */
+		public function toGDImage()
+		{
+			$this->_generateGDImageFromResource()
+			return $this->_gd_resource;
+		}
+		
+		/**
+		 * Returns a GD resource from the current resource type.
+		 * @access private
+		 */
+		private function _generateGDImageFromResource()
+		{
+// 			don't do this if the gd resource is already defined
+			if($this->_gd_resource === null)
+			{
+				switch($this->_resource_type)
+				{
+					case 'toolkit' :
+						$result = $this->_resource->execute(false, false);
+// 						check the return value in-case of error
+						if($result !== PHPVideoToolkit::RESULT_OK)
+						{
+// 							throw error
+						}
+						$img = array_shift($this->_resource->getLastOutput());
+						if(!is_file($img))
+						{
+// 							throw error
+						}
+						$this->_gd_resource = imagecreatefromjpeg($img);
+						break;
+						
+					case 'file' :
+						$path_info = pathinfo($this->_resource);
+						switch(strtolower($path_info['extension']))
+						{
+							case 'jpeg' :
+							case 'jpg' :
+								$this->_gd_resource = imagecreatefromjpeg($this->_resource);
+								break;
+							case 'gif' :
+								$this->_gd_resource = imagecreatefromgif($this->_resource);
+								break;
+							case 'png' :
+								$this->_gd_resource = imagecreatefrompng($this->_resource);
+								break;
+							default :
+// 								throw error
+						}
+						break;
+						
+					case 'gd' :
+// 						resource is already gd
+						break;
+				}
+			}
+		}
+		
+	}