/** * Queues a request for a Helioviewer.org movie */ public function reQueueMovie($silent = false) { include_once HV_ROOT_DIR . '/../lib/alphaID/alphaID.php'; include_once HV_ROOT_DIR . '/../lib/Resque.php'; include_once HV_ROOT_DIR . '/../lib/Redisent/Redisent.php'; include_once HV_ROOT_DIR . '/../src/Helper/HelioviewerLayers.php'; include_once HV_ROOT_DIR . '/../src/Helper/HelioviewerEvents.php'; include_once HV_ROOT_DIR . '/../src/Database/MovieDatabase.php'; include_once HV_ROOT_DIR . '/../src/Database/ImgIndex.php'; include_once HV_ROOT_DIR . '/../src/Movie/HelioviewerMovie.php'; // Connect to redis $redis = new Redisent('localhost'); // If the queue is currently full, don't process the request $queueSize = Resque::size(HV_MOVIE_QUEUE); if ($queueSize >= MOVIE_QUEUE_MAX_SIZE) { throw new Exception('Sorry, due to current high demand, we are currently unable ' . 'to process your request. Please try again later.', 40); } // Get current number of HV_MOVIE_QUEUE workers $workers = Resque::redis()->smembers('workers'); $movieWorkers = array_filter($workers, function ($elem) { return strpos($elem, HV_MOVIE_QUEUE) !== false; }); // Default options $defaults = array("format" => 'mp4', "force" => false); $options = array_replace($defaults, $this->_params); // Convert public alpha-numeric id to integer $movieId = alphaId($this->_params['id'], true, 5, HV_MOVIE_ID_PASS); $movieId = intval($movieId); if ($movieId <= 0) { throw new Exception('Value of movie "id" parameter is invalid.', 25); } // Check if movie exists on disk before re-queueing if ($options['force'] === false) { $helioviewerMovie = new Movie_HelioviewerMovie($this->_params['id'], $options['format']); $filepath = $helioviewerMovie->getFilepath(); $path_parts = pathinfo($filepath); $extension = '.' . $path_parts['extension']; foreach (array('.mp4', '.flv', '.webm') as $ext) { $path = str_replace($extension, $ext, $filepath); if (@file_exists($path)) { $url = str_replace(HV_CACHE_DIR, HV_CACHE_URL, $path); throw new Exception('Movie file already exists: ' . $url, 44); } } } // Get movie metadata from database $movieDatabase = new Database_MovieDatabase(); $movie = $movieDatabase->getMovieMetadata($movieId); // Check if movie is already in the queue (status=0) // or is already being processed (status=1) before re-queueing. // This prevents a spider, bot, or other automated user-agent // from stuffing the queue with redundant regeneration requests. // As such, the optional 'force' parameter will NOT override // this check. // However, if the movie status is considered stale, then // a Queued or Processing status is ignored and re-queueing // is allowed to proceed. $movieFormats = $movieDatabase->getMovieFormats($movieId); foreach ($movieFormats as $movieFormat) { $seconds_ago = time() - strtotime($movieFormat['modified']); $stale = 60 * 60 * 2; // 2 hours if ($movieFormat['status'] < 2 && $seconds_ago < $stale) { //throw new Exception('Movie can be regenerated only once every 2 hours', 47); //return; } } $numPixels = $movie['width'] * $movie['height']; $maxFrames = min($this->_getMaxFrames($queueSize), $movie['maxFrames']); // Create a connection to the database $db = new Database_ImgIndex(); // Limit movies to three layers $layers = new Helper_HelioviewerLayers($movie['dataSourceString']); if ($layers->length() < 1 || $layers->length() > 3) { throw new Exception('Invalid layer choices! You must specify 1-3 comma-separated ' . 'layer names.', 22); } // Estimate the number of frames $numFrames = $this->_estimateNumFrames($db, $layers, $movie['startDate'], $movie['endDate']); $numFrames = min($numFrames, $maxFrames); // Estimate the time to create movie frames // @TODO 06/2012: Factor in total number of workers and number of // workers that are currently available? $estBuildTime = $this->_estimateMovieBuildTime($movieDatabase, $numFrames, $numPixels, $options['format']); // If all workers are in use, increment and use estimated wait counter if ($queueSize + 1 >= sizeOf($movieWorkers)) { $eta = $redis->incrby('helioviewer:movie_queue_wait', $estBuildTime); $updateCounter = true; } else { // Otherwise simply use the time estimated for the single movie $eta = $estBuildTime; $updateCounter = false; } // Get datasource bitmask $bitmask = bindec($layers->getBitMask()); $publicId = $this->_params['id']; // Queue movie request $args = array('movieId' => $publicId, 'eta' => $estBuildTime, 'format' => $options['format'], 'counter' => $updateCounter); $token = Resque::enqueue(HV_MOVIE_QUEUE, 'Job_MovieBuilder', $args, true); // Create entries for each version of the movie in the movieFormats // table $movieDatabase->deleteMovieFormats($movieId); foreach (array('mp4', 'webm') as $format) { $movieDatabase->insertMovieFormat($movieId, $format); } // Print response $response = array('id' => $publicId, 'eta' => $eta, 'queue' => max(0, $queueSize + 1 - sizeOf($movieWorkers)), 'token' => $token); if (!$silent) { $this->_printJSON(json_encode($response)); } }
/** * Re-generate a screenshot using the metadata stored in the * `screenshots` database table. * * @return */ public function reTakeScreenshot($screenshotId) { include_once HV_ROOT_DIR . '/../src/Database/ImgIndex.php'; include_once HV_ROOT_DIR . '/../src/Image/Composite/HelioviewerScreenshot.php'; include_once HV_ROOT_DIR . '/../src/Helper/HelioviewerLayers.php'; include_once HV_ROOT_DIR . '/../src/Helper/HelioviewerEvents.php'; include_once HV_ROOT_DIR . '/../src/Helper/RegionOfInterest.php'; // Default options $defaults = array('force' => false, 'display' => false); $options = array_replace($defaults, $this->_params); $screenshotId = intval($screenshotId); if ($screenshotId <= 0) { throw new Exception('Value of screenshot "id" parameter is invalid.', 25); } $imgIndex = new Database_ImgIndex(); $metaData = $imgIndex->getScreenshotMetadata($screenshotId); $options['timestamp'] = $metaData['timestamp']; $options['observationDate'] = $metaData['observationDate']; $roiArr = explode(',', str_replace(array('POLYGON((', '))'), '', $metaData['roi'])); $roi = array(); foreach ($roiArr as $index => $coordStr) { $coordArr = explode(' ', $coordStr); if ($index === 0) { $x1 = $coordArr[0]; $y1 = $coordArr[1]; $x2 = $coordArr[0]; $y2 = $coordArr[1]; } else { if ($coordArr[0] <= $x1 && $coordArr[1] <= $y1) { $x1 = $coordArr[0]; $y1 = $coordArr[1]; } else { if ($coordArr[0] >= $x2 && $coordArr[1] >= $y2) { $x2 = $coordArr[0]; $y2 = $coordArr[1]; } } } } $roi = new Helper_RegionOfInterest($x1, $y1, $x2, $y2, $metaData['imageScale']); // Data Layers $layers = new Helper_HelioviewerLayers($metaData['dataSourceString']); // Limit screenshot to five layers if ($layers->length() < 1 || $layers->length() > 5) { throw new Exception('Invalid layer choices! You must specify 1-5 comma-separated ' . 'layer names.', 22); } // Event Layers $events = new Helper_HelioviewerEvents($metaData['eventSourceString']); // Create the screenshot $screenshot = new Image_Composite_HelioviewerScreenshot($layers, $events, (bool) $metaData['eventsLabels'], (bool) $metaData['scale'], $metaData['scaleType'], $metaData['scaleX'], $metaData['scaleY'], $metaData['observationDate'], $roi, $options); }