Add Audio and Video interfaces

src/FFMpeg/Format/Video/X264.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace FFMpeg\Format\Video;
+
+use FFMpeg\Format\DefaultVideoFormat;
+
+class X264 extends DefaultVideoFormat
+{
+
+    protected $audioCodec = 'libmp3lame';
+    protected $videoCodec = 'libx264';
+
+    protected function getAvailableAudioCodecs()
+    {
+        return array('libvo_aacenc', 'libfaac', 'libmp3lame');
+    }
+
+    protected function getAvailableVideoCodecs()
+    {
+        return array('libx264');
+    }
+
+}