Add an option to set the MP3 bitrate when converting (fixes #113)

classes/Config.php

@@ -82,6 +82,13 @@ class Config
      */
     public $remux = false;
 
+    /**
+     * MP3 bitrate when converting (in kbit/s)
+     *
+     * @var int
+     */
+    public $audioBitrate = 128;
+
     /**
      * YAML config file path.
      *

classes/VideoDownload.php

@@ -281,6 +281,7 @@ class VideoDownload
                 '-user-agent', $this->getProp(null, null, 'dump-user-agent'),
                 '-i', $url,
                 '-f', 'mp3',
+                '-b:a', $this->config->audioBitrate.'k',
                 '-vn',
                 'pipe:1',
             ]