retrieve, process and re-encode a video with #PlayCLI and #Iteratees

__LICENSE.txt

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
                    Version 2, December 2004

 Copyright (C) 2013 YOUR_NAME_HERE <YOUR_URL_HERE>

 Everyone is permitted to copy and distribute verbatim or modified
 copies of this license document, and changing it is allowed as long
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            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

  0. You just DO WHAT THE FUCK YOU WANT TO.

CODE.scala

val videoStream: Enumerator[Array[Byte]]
val scaleVideoHalf = CLI.pipe("ffmpeg -i pipe:0 -vf scale=iw/2:-1 -f avi pipe:1")
Ok.stream(videoStream &> scaleVideoHalf).withHeaders(CONTENT_TYPE -> "video/avi")