Two-Pass encoding and One-Pass Encoding

[Wolfy2hk]

Whats the difference between the two?

[Ch3aLs3A L!n@]

Whats the difference between the two?

i dunno which prog you use "_" ?

[CrackTheSky]

As far as I understand it, in VirtualDubMod at least, one-pass encoding is basically just two-pass encoding without the option to set a target bitrate/filesize. The first pass gives you a "template video" of sorts, and if the file is too big you can set it to two-pass > second pass and set a target so your file will be smaller (and have reduced visual quality).

[Ch3aLs3A L!n@]

well oh is that so? ok then so it's VirtualBudMod but when I use that it's gives me confusing so I rejected to use instead I look up in the Google and I found out my program It's easy to use and it's almost I can do everything except for one thing of DVD Ripping *I didn't do ripping dvd* my friend does that for me

[trythil]

Whats the difference between the two?

In a multipass encode the encoder generates data about each frame of the video being encoded, which is then used by the encoder on subsequent passes to affect bitrate distribution.

The advantage of multipass encoding is that it provides the encoder with more information about the video stream, which it can use to make more accurate predictions of (say) the cost of encoding a particular frame at a particular quantizer. The encoder can then optimize this cost. Global vs. local.

See also: http://www.animemusicvideos.org/guides/avtech/xvid.html