[MEncoder-users] Happy with encoding results but wish better understanding

[Sue Morton]

Hello RC,

> vhq is mbd=1, so a conflict with mbd=2 in there.
>
> You would get the most help from adding "trell".  You might be able
> to squeeze some more quality out of it using vlelim=-4:vcelim=7,
> and perhaps nr=.
>
> I would think you'd be happy with yadif=0 and drop 
> mcdeint,framestep=2,
> but if performance is no issue, no reason not to keep it.
>
> Additionally, you'll get a big quality improvement/size reduction if 
> you
> crop the black borders and noise around the edges, but then it will
> display at least a bit differently on your player, so be a bit 
> careful.
> If you go that way, make sure you use final dimentions that are
> multiples of 16 for progressive, and 32 for the height when the video
> will be interlaced.

Thank you for the feedback, very much appreciated!  I will look into 
your suggestions, in detail, as soon as I have time (probably not until 
the weekend).

I do already have 'trell' specified, it's right after the mbd=2 
parameter -- so I've got your suggestion in place already :-)

What does 'trell' do vs. leaving it out, such that it 'helps'?  And what 
is the 'help' it gives (less motion artifacts in video, helps sync video 
with audio, etc.)?  I've done a lot of reading, and I'll go back to read 
the man pages again, but I'm not really understanding what these 
parameters 'do' -- a pretty learning curve is still ahead of me I think 
:-)

I'll post back when I've had a chance to look into your suggestions.  In 
the meantime, if you (or anyone) could explain a bit what any of these 
parameters are supposed to do, it would be of help to me.

Thank you again.

Sue