>I have found that when doing a two pass encode if I remove various options
>from the first pass I get a massive speed increase. The options I do not
>provide the first pass are croping/bordering (-j), filters (-J), zoom (-Z)
>and gamma (-G).
Doing this means you're giving the first pass a completely different video
stream from the second pass. At best, you _might_ still get a small
improvement since the original source video is the same, but at worst (and
much more likely), you'll end up with a result that's actually worse than
one-pass encoding, as the codec will allocate bits to the wrong scenes,
taking away picture quality from where it's needed and giving it to where
it isn't.
As with all things related to transcoding, there's no absolute answer
other than "try it and see", but I strongly recommend against doing this.
--Andrew Church
[EMAIL PROTECTED]
http://achurch.org/
