On Thu, 3 Oct 2013 08:43:07 +0800 Sheng LUO <sheng.peisi.luo at gmail.com> wrote: > Hi all, > > I am new to ffmpeg, a project of mine is required to use r20544, and I > tried to get it. The obligatory question is: Why exactly do you need 20544? This is old, outdated, and unsupported.