cli: Simplify output geometry calculation
Fix bug where non-anamorphic mode ignores modulus
Change default modulus to 2


git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@6234 b64f7644-9d1e-0410-96f1-a4d463321fa5
libhb: Improve handling of streams with broken video timestamps
Addresses https://forum.handbrake.fr/viewtopic.php?f=12&t=30307&p=140045#p139847


git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@6235 b64f7644-9d1e-0410-96f1-a4d463321fa5