From 790e891ffc58cc37e33d6000d1287888a4414af1 Mon Sep 17 00:00:00 2001
From: Jacob Budin <jacob@kettlenyc.com>
Date: Mon, 9 Sep 2013 13:10:31 -0400
Subject: [PATCH] Added Vorbis (.ogg) audio format

Use requires 2 channel (stereo) audio input
---
 src/FFMpeg/Format/Audio/Vorbis.php            | 39 +++++++++++++++++++
 .../FFMpeg/Tests/Format/Audio/VorbisTest.php  | 13 +++++++
 2 files changed, 52 insertions(+)
 create mode 100644 src/FFMpeg/Format/Audio/Vorbis.php
 create mode 100644 tests/FFMpeg/Tests/Format/Audio/VorbisTest.php

diff --git a/src/FFMpeg/Format/Audio/Vorbis.php b/src/FFMpeg/Format/Audio/Vorbis.php
new file mode 100644
index 0000000..fd241fd
--- /dev/null
+++ b/src/FFMpeg/Format/Audio/Vorbis.php
@@ -0,0 +1,39 @@
+<?php
+
+/*
+ * This file is part of PHP-FFmpeg.
+ *
+ * (c) Alchemy <info@alchemy.fr>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace FFMpeg\Format\Audio;
+
+/**
+ * The Vorbis audio format
+ */
+class Vorbis extends DefaultAudio
+{
+    public function __construct()
+    {
+        $this->audioCodec = 'vorbis';
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getExtraParams()
+    {
+        return array('-strict', '-2');
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function getAvailableAudioCodecs()
+    {
+        return array('vorbis');
+    }
+}
diff --git a/tests/FFMpeg/Tests/Format/Audio/VorbisTest.php b/tests/FFMpeg/Tests/Format/Audio/VorbisTest.php
new file mode 100644
index 0000000..7aba0b7
--- /dev/null
+++ b/tests/FFMpeg/Tests/Format/Audio/VorbisTest.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace FFMpeg\Tests\Format\Audio;
+
+use FFMpeg\Format\Audio\Vorbis;
+
+class VorbisTest extends AudioTestCase
+{
+    public function getFormat()
+    {
+        return new Vorbis();
+    }
+}