Add Audio and Video interfaces

src/FFMpeg/Format/Video/Ogg.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace FFMpeg\Format\Video;
+
+use FFMpeg\Format\DefaultVideoFormat;
+
+class Ogg extends DefaultVideoFormat
+{
+
+    protected $audioCodec = 'libvorbis';
+    protected $videoCodec = 'libtheora';
+
+    protected function getAvailableAudioCodecs()
+    {
+        return array('libvorbis');
+    }
+
+    protected function getAvailableVideoCodecs()
+    {
+        return array('libtheora');
+    }
+
+}