Currently only pixel and half-pixel motion vector precisions are supported in
libschroedinger. Setting the mv_precision field to 2 (i.e. quarter pixel)
causes a crash in the libschroedinger encoder calls. By not setting this
parameter, we fall back to the default value used in libschroedinger.
patch by Anuradha Suraparaju, anuradha rd.bbc.co uk


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@17132 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b