On Tue, 9 Sep 2003, HR wrote:
Now, at 33% (53959 frames) with requested bpp=0.171, all quants are
Just a comment: I've recently experimented encoding PAL video (768x576 at 25 fps scaled down to 352x288, 640x480, or not at all) and with 1.2 Mbit/s (0.109-0.156) it was totally unacceptable quality to me (except when scaling down to 352x288, but that's somewhat low resolution). So now I'm scaling to 640x480 and coding at 2 Mbit/s (0.26 bpp). Even with this bitrate 640x480 appears to be better than unscaled size. Much over 2 Mbit/s might not be possible, since it hits AVI 2 GB limit for 2 hour movie.
mencoder input.vob -oac copy -ovc xvid -xvidencopts max_key_interval=125:pass=1:bitrate=739:me_quality=5:4mv -sws 2 -vop scale=544:304,crop=702:556:8:8 -o /dev/null
Is there a reason you are using Xvid instead of ffmpeg's MPEG-4 coder? I thought the latter would be better, or is there significant difference anyway? Have you experimented whether -sws 2 or 9 is better (or something else?). I'm using 9, I suppose it should be better in theory?