From a435de089da4dd37c3c183f633a49107c720dd95 Mon Sep 17 00:00:00 2001
From: Dalyn Cessac <dalyn.cessac@1214036.no-reply.drupal.org>
Date: Wed, 16 Mar 2011 11:06:40 -0500
Subject: Added phpvideotoolkit transcoder and updates to the preset ui
---
.../adapters/ffmpeg-php/ffmpeg_frame.php | 223 +++++++++++++++++++++
1 file changed, 223 insertions(+)
create mode 100644 libraries/phpvideotoolkit/adapters/ffmpeg-php/ffmpeg_frame.php
(limited to 'libraries/phpvideotoolkit/adapters/ffmpeg-php/ffmpeg_frame.php')
diff --git a/libraries/phpvideotoolkit/adapters/ffmpeg-php/ffmpeg_frame.php b/libraries/phpvideotoolkit/adapters/ffmpeg-php/ffmpeg_frame.php
new file mode 100644
index 0000000..7928e2c
--- /dev/null
+++ b/libraries/phpvideotoolkit/adapters/ffmpeg-php/ffmpeg_frame.php
@@ -0,0 +1,223 @@
+<?php
+
+ /**
+ * This is a pure php emulation of the PHP module FFmpeg-PHP.
+ * @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.
+ * @see ffmpeg-php,
+ * - @link http://ffmpeg-php.sourceforge.net/
+ * - @author Todd Kirby.
+ * - all phpdoc documentation is lifted directly from the ffmpeg-php docs
+ */
+
+ class ffmpeg_frame
+ {
+
+ private $_gd_resource = null;
+ private $_width = null;
+ private $_height = null;
+ private $_timecode = null;
+
+ /**
+ * Class Constructor
+ * @param resource $gd_resource A GD image resource.
+ * @param integer $_time (private) The time in seconds of the frame in the parent movie set from ffmpeg_movie::getFrame()
+ */
+ function __construct($gd_resource, $_timecode)
+ {
+ $this->_gd_resource = $gd_resource;
+ $this->_timecode = $_timecode;
+ $this->_width = imagesx($gd_resource);
+ $this->_height = imagesy($gd_resource);
+ }
+
+ function __destruct()
+ {
+ if(is_resource($this->_gd_resource))
+ {
+ imagedestroy($this->_gd_resource);
+ }
+ }
+
+ /**
+ * Determines if the resource supplied to the frame is valid.
+ * @access public
+ * @return integer
+ */
+ public function hasValidResource()
+ {
+ return is_resource($this->_gd_resource);
+ }
+
+ /**
+ * 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. (Cropping is built into ffmpeg resizing so I'm providing it here for completeness.)
+ * 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, $crop_right=false)
+ {
+// are we cropping?
+ if($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)
+ {
+// 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 integer
+ */
+ public function toGDImage()
+ {
+ return $this->_gd_resource;
+ }
+
+ }
+
\ No newline at end of file
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