diff --git a/src/FFMpeg/Format/Audio/Flac.php b/src/FFMpeg/Format/Audio/Flac.php
index 11f3159..fdce009 100644
--- a/src/FFMpeg/Format/Audio/Flac.php
+++ b/src/FFMpeg/Format/Audio/Flac.php
@@ -13,12 +13,20 @@ namespace FFMpeg\Format\Audio;
 
 use FFMpeg\Format\DefaultAudioFormat;
 
+/**
+ * The Flac audio format
+ *
+ * @author Romain Neutron imprec@gmail.com
+ */
 class Flac extends DefaultAudioFormat
 {
 
     protected $audioCodec = 'flac';
 
-    protected function getAvailableAudioCodecs()
+    /**
+     * {@inheritDoc}
+     */
+    public function getAvailableAudioCodecs()
     {
         return array('flac');
     }
diff --git a/src/FFMpeg/Format/Audio/Mp3.php b/src/FFMpeg/Format/Audio/Mp3.php
index 8e87a13..607efd0 100644
--- a/src/FFMpeg/Format/Audio/Mp3.php
+++ b/src/FFMpeg/Format/Audio/Mp3.php
@@ -13,12 +13,20 @@ namespace FFMpeg\Format\Audio;
 
 use FFMpeg\Format\DefaultAudioFormat;
 
+/**
+ * The MP3 audio format
+ *
+ * @author Romain Neutron imprec@gmail.com
+ */
 class Mp3 extends DefaultAudioFormat
 {
 
     protected $audioCodec = 'libmp3lame';
 
-    protected function getAvailableAudioCodecs()
+    /**
+     * {@inheritDoc}
+     */
+    public function getAvailableAudioCodecs()
     {
         return array('libmp3lame');
     }
diff --git a/src/FFMpeg/Format/Video/Ogg.php b/src/FFMpeg/Format/Video/Ogg.php
index a68db46..c793c3b 100644
--- a/src/FFMpeg/Format/Video/Ogg.php
+++ b/src/FFMpeg/Format/Video/Ogg.php
@@ -13,18 +13,29 @@ namespace FFMpeg\Format\Video;
 
 use FFMpeg\Format\DefaultVideoFormat;
 
+/**
+ * The Ogg video format
+ *
+ * @author Romain Neutron imprec@gmail.com
+ */
 class Ogg extends DefaultVideoFormat
 {
 
     protected $audioCodec = 'libvorbis';
     protected $videoCodec = 'libtheora';
 
-    protected function getAvailableAudioCodecs()
+    /**
+     * {@inheritDoc}
+     */
+    public function getAvailableAudioCodecs()
     {
         return array('libvorbis');
     }
 
-    protected function getAvailableVideoCodecs()
+    /**
+     * {@inheritDoc}
+     */
+    public function getAvailableVideoCodecs()
     {
         return array('libtheora');
     }
diff --git a/src/FFMpeg/Format/Video/WebM.php b/src/FFMpeg/Format/Video/WebM.php
index bec043e..195e796 100644
--- a/src/FFMpeg/Format/Video/WebM.php
+++ b/src/FFMpeg/Format/Video/WebM.php
@@ -13,23 +13,37 @@ namespace FFMpeg\Format\Video;
 
 use FFMpeg\Format\DefaultVideoFormat;
 
+/**
+ * The WebM video format
+ *
+ * @author Romain Neutron imprec@gmail.com
+ */
 class WebM extends DefaultVideoFormat
 {
 
     protected $audioCodec = 'libvorbis';
     protected $videoCodec = 'libvpx';
 
+    /**
+     * {@inheritDoc}
+     */
     public function getExtraParams()
     {
         return '-f webm';
     }
 
-    protected function getAvailableAudioCodecs()
+    /**
+     * {@inheritDoc}
+     */
+    public function getAvailableAudioCodecs()
     {
         return array('libvorbis');
     }
 
-    protected function getAvailableVideoCodecs()
+    /**
+     * {@inheritDoc}
+     */
+    public function getAvailableVideoCodecs()
     {
         return array('libvpx');
     }
diff --git a/src/FFMpeg/Format/Video/X264.php b/src/FFMpeg/Format/Video/X264.php
index 59525e1..09799d3 100644
--- a/src/FFMpeg/Format/Video/X264.php
+++ b/src/FFMpeg/Format/Video/X264.php
@@ -13,18 +13,29 @@ namespace FFMpeg\Format\Video;
 
 use FFMpeg\Format\DefaultVideoFormat;
 
+/**
+ * The X264 video format
+ *
+ * @author Romain Neutron imprec@gmail.com
+ */
 class X264 extends DefaultVideoFormat
 {
 
     protected $audioCodec = 'libmp3lame';
     protected $videoCodec = 'libx264';
 
-    protected function getAvailableAudioCodecs()
+    /**
+     * {@inheritDoc}
+     */
+    public function getAvailableAudioCodecs()
     {
         return array('libvo_aacenc', 'libfaac', 'libmp3lame');
     }
 
-    protected function getAvailableVideoCodecs()
+    /**
+     * {@inheritDoc}
+     */
+    public function getAvailableVideoCodecs()
     {
         return array('libx264');
     }