function convert(&$Medium, $mimeType)
{
if (Medium::name(null, $mimeType) === 'Image') {
$randomFrame = rand(1, $Medium->objects['ffmpeg_movie']->getFrameCount() - 1);
$resource = $Medium->objects['ffmpeg_movie']->getFrame($randomFrame)->toGDImage();
if (!is_resource($resource)) {
return false;
}
$Image = Medium::factory(array('gd' => $resource), 'image/gd');
return $Image->convert($mimeType);
}
return false;
}
function convert(&$Medium, $mimeType)
{
if (!isset($this->_formatMap[$mimeType])) {
return false;
}
$Medium->mimeType = $mimeType;
if ($Medium->name === 'Document') {
// application/pdf -> image
$this->store($Medium, $Medium->files['temporary']);
/* Unset files to prevent too early deletion by $Medium */
$temporary = $Medium->files['temporary'];
unset($Medium->files);
return Medium::factory(array('temporary' => $temporary), $mimeType);
}
return true;
}
function convert($Medium, $mimeType)
{
if (!isset($this->_formatMap[$mimeType])) {
return false;
}
try {
$Medium->objects['Imagick']->setFormat($this->_formatMap[$mimeType]);
} catch (Exception $E) {
return false;
}
$Medium->mimeType = $mimeType;
if ($Medium->name === 'Document') {
// application/pdf -> image
return Medium::factory($Medium->objects['Imagick'], $mimeType);
}
return true;
}
/**
* Generates markup to link to file
*
* @param string $path Absolute or partial path to a file
* @param array $options
* @return mixed
*/
function link($path, $options = array())
{
$default = array('inline' => true, 'restrict' => array());
$defaultRss = array('title' => 'RSS Feed');
if (is_bool($options)) {
$options = array('inline' => $options);
}
$options = array_merge($default, $options);
if (is_array($path) && !array_key_exists('controller', $path)) {
$out = null;
foreach ($path as $i) {
$out .= $this->link($i, $options);
}
if (empty($out)) {
return null;
}
return $out;
}
$inline = $options['inline'];
unset($options['inline']);
if (!($url = $this->url($path))) {
return null;
}
if (strpos('://', $path) !== false) {
$file = parse_url($url, PHP_URL_PATH);
} else {
$file = $this->file($path);
}
$mimeType = MimeType::guessType($file);
$Medium = Medium::factory($file, $mimeType);
if (!empty($options['restrict']) && !in_array(strtolower($Medium->name), (array) $options['restrict'])) {
return null;
}
unset($options['restrict']);
switch ($mimeType) {
case 'text/css':
$out = sprintf($this->tags['csslink'], $url, $this->_parseAttributes($options, null, '', ' '));
return $this->output($out, $inline);
case 'application/javascript':
case 'application/x-javascript':
$out = sprintf($this->tags['javascriptlink'], $url);
return $this->output($out, $inline);
case 'application/rss+xml':
$options = array_merge($defaultRss, $options);
$out = sprintf($this->tags['rsslink'], $url, $options['title']);
return $this->output($out, $inline);
default:
return $this->Html->link(basename($file), $url);
}
}
/**
* Retrieve (cached) metadata of a file
*
* @param Model $Model
* @param string $file Path to a file relative to `baseDirectory` or an absolute path to a file
* @param integer $level level of amount of info to add, `0` disable, `1` for basic, `2` for detailed info
* @return mixed Array with results or false if file is not readable
*/
function metadata(&$Model, $file, $level = 1)
{
if ($level < 1) {
return array();
}
extract($this->settings[$Model->alias]);
list($file, ) = $this->_file($Model, $file);
$File = new File($file);
if (!$File->readable()) {
return false;
}
$checksum = $File->md5(true);
if (isset($this->__cached[$Model->alias][$checksum])) {
$data = $this->__cached[$Model->alias][$checksum];
}
if ($level > 0 && !isset($data[1])) {
$data[1] = array('size' => $File->size(), 'mime_type' => MimeType::guessType($File->pwd()), 'checksum' => $checksum);
}
if ($level > 1 && !isset($data[2])) {
$Medium = Medium::factory($File->pwd());
if ($Medium->name === 'Audio') {
$data[2] = array('artist' => $Medium->artist(), 'album' => $Medium->album(), 'title' => $Medium->title(), 'track' => $Medium->track(), 'year' => $Medium->year(), 'length' => $Medium->duration(), 'quality' => $Medium->quality(), 'sampling_rate' => $Medium->samplingRate(), 'bit_rate' => $Medium->bitRate());
} elseif ($Medium->name === 'Image') {
$data[2] = array('width' => $Medium->width(), 'height' => $Medium->height(), 'ratio' => $Medium->ratio(), 'quality' => $Medium->quality(), 'megapixel' => $Medium->megapixel());
} elseif ($Medium->name === 'Text') {
$data[2] = array('characters' => $Medium->characters(), 'syllables' => $Medium->syllables(), 'sentences' => $Medium->sentences(), 'words' => $Medium->words(), 'flesch_score' => $Medium->fleschScore(), 'lexical_density' => $Medium->lexicalDensity());
} elseif ($Medium->name === 'Video') {
$data[2] = array('title' => $Medium->title(), 'year' => $Medium->year(), 'length' => $Medium->duration(), 'width' => $Medium->width(), 'height' => $Medium->height(), 'ratio' => $Medium->ratio(), 'quality' => $Medium->quality(), 'bit_rate' => $Medium->bitRate());
} else {
$data[2] = array();
}
}
for ($i = $level, $result = array(); $i > 0; $i--) {
$result = array_merge($result, $data[$i]);
}
$this->__cached[$Model->alias][$checksum] = $data;
return Set::filter($result);
}
function convert($Medium, $mimeType)
{
if (Medium::name(null, $mimeType) === 'Image') {
$coverArt = $this->__coverArt($Medium);
if (!$coverArt) {
return false;
}
$resource = @imagecreatefromstring($coverArt);
if (!is_resource($resource)) {
return false;
}
$Image = Medium::factory(array('gd' => $resource), 'image/gd');
return $Image->convert($mimeType);
}
return false;
}
function testMediumNameAndShort()
{
$file = $this->TestData->getFile('image-jpg.jpg');
$result = Medium::factory($file);
$this->assertEqual($result->name, 'Image');
$this->assertEqual($result->short, 'img');
$file = $this->TestData->getFile('image-png.png');
$result = Medium::factory($file);
$this->assertEqual($result->name, 'Image');
$this->assertEqual($result->short, 'img');
$file = $this->TestData->getFile('image-gif.gif');
$result = Medium::factory($file);
$this->assertEqual($result->name, 'Image');
$this->assertEqual($result->short, 'img');
$file = $this->TestData->getFile('text-plain.txt');
$result = Medium::factory($file);
$this->assertEqual($result->name, 'Text');
$this->assertEqual($result->short, 'txt');
$file = $this->TestData->getFile('application-pdf.pdf');
$result = Medium::factory($file);
$this->assertEqual($result->name, 'Document');
$this->assertEqual($result->short, 'doc');
}
/**
* Automatically processes a file and returns a Medium instance
*
* Possible values for $instructions:
* array('name of method', 'name of other method')
* array('name of method' => array('arg1', 'arg2'))
*
* @param string $file Absolute path to a file
* @param array $instructions See description above
* @return object
*/
static function make($file, $instructions = array())
{
$Medium = Medium::factory($file);
foreach ($instructions as $key => $value) {
if (is_int($key)) {
$method = $value;
$args = null;
} else {
$method = $key;
if (is_array($value)) {
$args = $value;
} else {
$args = array($value);
}
}
if (!method_exists($Medium, $method)) {
$message = "Medium::make - Invalid instruction ";
$message .= "`" . get_class($Medium) . "::{$method}()`.";
trigger_error($message, E_USER_WARNING);
return false;
}
$result = call_user_func_array(array($Medium, $method), $args);
if ($result === false) {
$message = "Medium::make - Instruction ";
$message .= "`" . get_class($Medium) . "::{$method}()` failed.";
trigger_error($message, E_USER_WARNING);
return false;
} elseif (is_a($result, 'Medium')) {
$Medium = $result;
}
}
return $Medium;
}
