diff --git a/classes/VideoDownload.php b/classes/VideoDownload.php
index 18de6d5..d94dd85 100644
--- a/classes/VideoDownload.php
+++ b/classes/VideoDownload.php
@@ -293,6 +293,13 @@ class VideoDownload
         return popen($chain->getProcess()->getCommandLine(), 'r');
     }
 
+    /**
+     * Get video stream from an M3U playlist.
+     *
+     * @param \stdClass $video Video object returned by getJSON
+     *
+     * @return resource popen stream
+     */
     public function getM3uStream(\stdClass $video)
     {
         if (!shell_exec('which '.$this->config->avconv)) {
@@ -312,8 +319,6 @@ class VideoDownload
             ]
         );
 
-        //dump($procBuilder->getProcess()->getCommandLine()); die;
-
         return popen($procBuilder->getProcess()->getCommandLine(), 'r');
     }
 }
diff --git a/controllers/FrontController.php b/controllers/FrontController.php
index 5f7ef09..b357d7d 100644
--- a/controllers/FrontController.php
+++ b/controllers/FrontController.php
@@ -217,6 +217,15 @@ class FrontController
         return $response->withStatus(500);
     }
 
+    /**
+     * Get a video/audio stream piped through the server.
+     * @param  string $url      URL of the video
+     * @param  string $format   Requested format
+     * @param  Response   $response  PSR-7 response
+     * @param  Request    $request   PSR-7 request
+     * @param  string $password Video password
+     * @return Response
+     */
     private function getStream($url, $format, $response, $request, $password = null)
     {
         if (!isset($format)) {