Adds post for easy compilation of Xuggle on Ubuntu 14.04

_posts/2014-07-01-compiling-xuggle-on-ubuntu-14-04

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+---
+layout: post
+status: publish
+published: true
+title: Compiling Xuggle on Ubuntu 14.04
+author: Julien Lengrand-Lambert
+author_login: jlengrand
+author_email: julien@lengrand.fr
+author_url: http://www.lengrand.fr
+categories:
+- programming
+- java
+tags:
+- xuggle
+- java
+-xuggle
+- codec
+- ubuntu
+comments: []
+---
+
+This guide applies for the latest [Xuggle][1] release from [Github][2] (5.5).
+
+It is useful if you want to compile **Xuggle** from source on the latest **Ubuntu** release (14.04). I have been compiling using a **64 bits** system.
+
+You can find more complete information on the [dedicated page from the Xuggle website][3].
+And if you need even more info, you can have a look at [the advanced build page][4].
+
+First of all, we will need to install some packages needed during the compilation :
+
+Installing various dependencies
+
+    $ apt-get install ant git yasm
+    $ apt-get install build-essential # g++, gcc and others
+
+We then want to download and install the latest Java 7 realease
+For that, we use a ppa.
+
+    $ add-apt-repository ppa:webupd8team/java
+    $ apt-get update && apt-get install oracle-java7-installer
+
+Then, we can clone the latest Xuggle source code directly from github :
+
+    $ git clone https://github.com/artclarke/xuggle-xuggler.git
+    $ cd xuggle-xuggler
+
+
+**We will also need to upgrade g++**. Indeed, if we don't do that the compilation will result in an error due to unauthorized type conversion.
+The precise error message is :
+
+    ([exec] ../../../../../../../csrc/com/xuggle/xuggler/Codec.cpp:158:38: error: converting 'false' to pointer type 'int (*)(AVCodecContext*, void*, int*, AVPacket*)' [-Werror=conversion-null])
+
+To solve this, I configured **g++ < 4.8** to be used by default **(4.6 here)**
+
+    $ apt-get install g++-4.6
+    $ update-alternatives --remove-all g++
+    $ update-alternatives --display c++
+    $ update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.6 10
+    $ update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.8 20
+
+    $ update-alternatives --install /usr/bin/c++ c++ /usr/bin/g++ 30
+    $ update-alternatives --set c++ /usr/bin/g++
+    $ update-alternatives --config g++ # Choose the older version
+
+
+
+Finally, we can try to compile Xuggle from source.
+
+    $ ant stage
+
+Compilation takes roughly **20 minutes** on my system.
+
+If the compilation is successful, you can get the generated **jar** in the dist folder.
+The latest release of Xuggle embeds the **so** files directly in the jar, so you shouldn't need anything else.
+
+
+Compiling Xuggle from scratch in 14.04 has been surprisingly easy comparing to 12.04. The compilation scheme has been greatly improved in the latest Xuggle release.
+
+
+**Note : Xuggle is now deprecated, and has not been updated for now almost a year. So far, I haven't found an equivalent that would be just as good. Let me know if you do!**
+
+
+  [1]: http://www.xuggle.com/
+  [2]: https://github.com/artclarke/xuggle-xuggler
+  [3]: http://www.xuggle.com/xuggler/build
+  [4]: http://www.xuggle.com/xuggler/advbuild