rheaton/carrierwave-video — pull request #1 by coreyti (2012-07-29 00:46:10+00:00)
Title: Support resolution same and custom params

adds support for:

:resolution => :same # will calculate output resolution from input
:custom => "whatevs" # provide custom custom

note that be able to pass in :custom makes it so carrierwave-video can be used ffmpeg 0.11.1 and livx264 (changes were made related to how presets are loaded).