1 files changed, 200 insertions, 0 deletions
diff --git a/www/wiki/extensions/EmbedVideo/classes/media/VideoHandler.php b/www/wiki/extensions/EmbedVideo/classes/media/VideoHandler.php
new file mode 100644
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+++ b/www/wiki/extensions/EmbedVideo/classes/media/VideoHandler.php
@@ -0,0 +1,200 @@
+<?php
+/**
+ * EmbedVideo
+ * VideoHandler Class
+ *
+ * @author		Alexia E. Smith
+ * @license		MIT
+ * @package		EmbedVideo
+ * @link		https://www.mediawiki.org/wiki/Extension:EmbedVideo
+ *
+ **/
+
+namespace EmbedVideo;
+
+class VideoHandler extends AudioHandler {
+	/**
+	 * Validate a thumbnail parameter at parse time.
+	 * Return true to accept the parameter, and false to reject it.
+	 * If you return false, the parser will do something quiet and forgiving.
+	 *
+	 * @access	public
+	 * @param	string	$name
+	 * @param	mixed	$value
+	 */
+	public function validateParam($name, $value) {
+		if ($name === 'width' || $name === 'height') {
+			return $value > 0;
+		}
+		return parent::validateParam($name, $value);
+	}
+
+	/**
+	 * Changes the parameter array as necessary, ready for transformation.
+	 * Should be idempotent.
+	 * Returns false if the parameters are unacceptable and the transform should fail
+	 *
+	 * @access	public
+	 * @param	object	File
+	 * @param	array	Parameters
+	 * @return	boolean	Success
+	 */
+	public function normaliseParams($file, &$parameters) {
+		parent::normaliseParams($file, $parameters);
+
+		list($width, $height) = $this->getImageSize($file, $file->getLocalRefPath());
+
+		if ($width === 0 && $height === 0) {
+			//Force a reset.
+			$width = 640;
+			$height = 360;
+		}
+
+		if (isset($parameters['width']) && isset($parameters['height']) && $parameters['width'] > 0 && $parameters['height'] === $parameters['width']) {
+			// special allowance for square video embeds needed by some wikis, otherwise forced 16:9 ratios are followed.
+			return true;
+		}
+
+		if (isset($parameters['width']) && $parameters['width'] > 0 && $parameters['width'] < $width) {
+			$parameters['width'] = intval($parameters['width']);
+
+			if (!isset($parameters['height'])) {
+				//Page embeds do not specify thumbnail height so correct it here based on aspect ratio.
+				$parameters['height'] = round($height / $width * $parameters['width']);
+			}
+		} else {
+			$parameters['width'] = $width;
+		}
+
+		if (isset($parameters['height']) && $parameters['height'] > 0 && $parameters['height'] < $height) {
+			$parameters['height'] = intval($parameters['height']);
+		} else {
+			$parameters['height'] = $height;
+		}
+
+		if ($width > 0 && $parameters['width'] > 0) {
+			if (($height / $width) != ($parameters['height'] / $parameters['width'])) {
+				$parameters['height'] = round($height / $width * $parameters['width']);
+			}
+		}
+
+		return true;
+	}
+
+	/**
+	 * Get an image size array like that returned by getimagesize(), or false if it
+	 * can't be determined.
+	 *
+	 * This function is used for determining the width, height and bitdepth directly
+	 * from an image. The results are stored in the database in the img_width,
+	 * img_height, img_bits fields.
+	 *
+	 * @note If this is a multipage file, return the width and height of the
+	 *  first page.
+	 *
+	 * @access	public
+	 * @param	File	$image The image object, or false if there isn't one
+	 * @param	string	$path The filename
+	 * @return	mixed	An array following the format of PHP getimagesize() internal function or false if not supported.
+	 */
+	public function getImageSize($file, $path) {
+		$probe = new FFProbe($path);
+
+		$stream = $probe->getStream("v:0");
+
+		if ($stream !== false) {
+			return [$stream->getWidth(), $stream->getHeight(), 0, "width=\"{$stream->getWidth()}\" height=\"{$stream->getHeight()}\"", 'bits' => $stream->getBitDepth()];
+		}
+		return [0, 0, 0, 'width="0" height="0"', 'bits' => 0];
+	}
+
+	/**
+	 * Get a MediaTransformOutput object representing the transformed output. Does the
+	 * transform unless $flags contains self::TRANSFORM_LATER.
+	 *
+	 * @param	File	$image The image object
+	 * @param	string	$dstPath Filesystem destination path
+	 * @param	string	$dstUrl Destination URL to use in output HTML
+	 * @param	array	$params Arbitrary set of parameters validated by $this->validateParam()
+	 *   Note: These parameters have *not* gone through $this->normaliseParams()
+	 * @param	integer	$flags A bitfield, may contain self::TRANSFORM_LATER
+	 * @return	MediaTransformOutput
+	 */
+	public function doTransform($file, $dstPath, $dstUrl, $parameters, $flags = 0) {
+		$this->normaliseParams($file, $parameters);
+
+		if (!($flags & self::TRANSFORM_LATER)) {
+			//@TODO: Thumbnail generation here.
+		}
+
+		return new VideoTransformOutput($file, $parameters);
+	}
+
+	/**
+	 * Shown in file history box on image description page.
+	 *
+	 * @access	public
+	 * @param	File	$file
+	 * @return	string	Dimensions
+	 */
+	public function getDimensionsString($file) {
+		global $wgLang;
+
+		$probe = new FFProbe($file->getLocalRefPath());
+
+		$format = $probe->getFormat();
+		$stream = $probe->getStream("v:0");
+
+		if ($format === false || $stream === false) {
+			return parent::getDimensionsString($file);
+		}
+
+		return wfMessage('ev_video_short_desc', $wgLang->formatTimePeriod($format->getDuration()), $stream->getWidth(), $stream->getHeight())->text();
+	}
+
+	/**
+	 * Short description. Shown on Special:Search results.
+	 *
+	 * @access	public
+	 * @param	File	$file
+	 * @return	string
+	 */
+	public function getShortDesc($file) {
+		global $wgLang;
+
+		$probe = new FFProbe($file->getLocalRefPath());
+
+		$format = $probe->getFormat();
+		$stream = $probe->getStream("v:0");
+
+		if ($format === false || $stream === false) {
+			return parent::getGeneralShortDesc($file);
+		}
+
+		return wfMessage('ev_video_short_desc', $wgLang->formatTimePeriod($format->getDuration()), $stream->getWidth(), $stream->getHeight(), $wgLang->formatSize($file->getSize()))->text();
+	}
+
+	/**
+	 * Long description. Shown under image on image description page surounded by ().
+	 *
+	 * @access	public
+	 * @param	File	$file
+	 * @return	string
+	 */
+	public function getLongDesc($file) {
+		global $wgLang;
+
+		$probe = new FFProbe($file->getLocalRefPath());
+
+		$format = $probe->getFormat();
+		$stream = $probe->getStream("v:0");
+
+		if ($format === false || $stream === false) {
+			return parent::getGeneralLongDesc($file);
+		}
+
+		$extension = pathinfo($file->getLocalRefPath(), PATHINFO_EXTENSION);
+
+		return wfMessage('ev_video_long_desc', strtoupper($extension), $stream->getCodecName(), $wgLang->formatTimePeriod($format->getDuration()), $stream->getWidth(), $stream->getHeight(), $wgLang->formatBitrate($format->getBitRate()))->text();
+	}
+}