On Fri, 23 Jan 2004, Ray Cole wrote:
> With the same parameters as 1.6.1.92, I'm seeing terrible quality problems.
>
> Parameters used:
> mpeg2enc -f 8 -q 5 -a 2 -g 6 -G 18 -E -10 -N 1.0 -z t -4 2 -2 2 -r 16 -o file.m2v
>
Is it possible to have less that 200+ character lines? ;)
> I'm seeing very poor quality on still scenes. Faces are very blotchy.
> Now I also use yuvdenoise - I haven't made any determination as to whether
> it is the newer mpeg2enc or newer yuvdenoise killing me, but it feels more
> like an mpeg2enc issue more than anything else. I also haven't tried using
> -R 2 - that is certainly a major difference between 92 and 93. I'll try
> that as well. Anyone else experienced a major decline in quality?
Nope, in fact I encoded a 83 minute concert a little while ago
and it looks fine.
What are you using to do the playback? Ogle? Xine? MPlayer?
Standalone player?
With no B frames "-R 0", you will see problems with Ogle since it
does not implement the DPME (Dual Prime Motion Estimation) - and errors
will be logged in the window. Apple's DVD player also appears to
have a problem playing discs encoded with "-R 0".
MPlayer had no trouble and the movie looked ok - I didn't see any
blotches/splotches.
I took the same DVD and played it on a Philips 724 player and it
looked very good
I'll give it another try and see if somehow I overlooked the
problems.
Cheers,
Steven Schultz
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