First of all I wanna say thank you Harmy for the outstanding work you're doing, really fantastic. You can't imagine how much I'm looking forward to actually getting v2.0
I've watched WP2.3 yesterday and I liked it alot. Apart from the things that others have mentioned before there's one framing error that I noticed. Now I don't know wheter it was always there, but at least it's in the GOUT as well.
Frame 4032:
[IMG]http://thumbnails26.imagebam.com/17404/e115e2174036621.jpg[/IMG]
About the encoding. I checked your settings in WP2.3 and see, I know it's a workprint and I know that you probably aimed for speed here and not for perfect quality, but I think for the final encode settings could still be improoved quite a bit.
What I suggest is that you aim for so called DXVA compatibility. This ensures that your file can be played back on the PC as well as on network media players and Bluray players. When using a resolution of 1280x542 as you did, the following settings should be chosen to achieve DXVA compatibility:
Profile: High (Main would work as well of course, but is very limited in other regards)
Level: 4.1
Reference Frames <= 12
Partitions: All but P4x4
VBV: Maxrate of 38000 and Bufsize of 30000 is safe
These are the settings used in x264, but I think they have similar names in the Adobe Encoder.
Now regarding 2pass vs. CRF (1pass). In CRF mode you choose a single value (so called CRF value in x264) which represents quality directly. This means that an encode made with CRF16 will have a different (better) quality than one made with CRF20. However, you can't predetermine the actual bitrate that the encoder is going to use. As it only does 1 pass and is therefor faster, this mode is recommended as long as you do not want to store the files on optical discs.
In 2pass mode however you choose the bitrate and the encoder is going to adjust the quality by itself in a way so that the bitrate is almost exactly met. This mode is therefore recommended if you want to store the encode on a DVD or Bluray.
My point is that in the end you will get the exact same quality both in CRF and 2pass when both file have THE SAME BITRATE. 2pass does not have any better quality at all, it just lets you predetermine file-size, thats all.
Well, I would be glad if I could give any further suggestions regarding encoding settings and such.
Regards Jan