* Some users are trying to use them for non-ancient iDevices when
baseline profile and level 1.3/3.0 would not be required.
* "640" and "320" no longer make sense.
* Some recommended options can be viewed at:
<https://trac.ffmpeg.org/wiki/Encode/H.264#iOS>
Signed-off-by: Lou Logan <lou@lrcd.com>
Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>