move defaults to new pattern layout

Signed-off-by: Niv Sardi <xaiki@evilgiggle.com>
reorder opts, (aesthetics

Signed-off-by: Niv Sardi <xaiki@evilgiggle.com>
add output opt to match ffmpeg style

Signed-off-by: Niv Sardi <xaiki@evilgiggle.com>
factorize parse_opts

Signed-off-by: Niv Sardi <xaiki@evilgiggle.com>
be really nitpicky about alignment

Signed-off-by: Niv Sardi <xaiki@evilgiggle.com>