2 Pass????

[V10]

Ok, i'm getting it almost now, but i've got still
one question:

why is it important to do a 2 pass rip!!! What is it exactly????

Acidrop sad to do this so I'm trying it home now and i will see the result tomorrow, but once again what is it a two pass rip???

( Thanks to Acidrop for the tip, i hope it works!! )

C Ya

[benedict]

In single pass, the encoding will start with a lower bitrate (lesser quality) and end with a higher bitrate (better quality). Why does it do this? Because it only knows what the video looks like as far as it has processed it and errs on the conservative side so that it doesn't run out of room. Later on when (if) it finds it was too consevative at the start, it ups the bitrate and the end of your video making the end look better than the beginning.

In two-pass, the first pass merely scans your input video and keeps stats on it to pass on to the second pass where the actual encoding occurs. This allows the second pass to maintain a more consistant bitrate during the encode, giving the output a "smoother" quality throughout.

[V10]

thanks, it is much clearer now for me!!

but cant it be done in just one time???

GreetZ

Ruud

[Mark Madness]

No it can't. The whole purpose of 2-pass is so the cpu knows exactly where to allocate the most bits. On 1-pass, the CPU has no idea what kind of video you are encoding.

[benedict]

I might be mistaken, but I think V10's question is really, "Fine, I'll use 2-pass, but why do I have to go in twice to get that done? Why can't I just go in and specify 2-pass and come back later with a 2-pass encoding completed?"

Stated that way, it's an interesting question that I don't have an answer to. So far as I'm aware, no one much goes in and analyzes the output from pass-1 before starting pass-2. If there's a reason, fine, but why not also offer the "specify once" option since it's likely that most people would opt for that?

[V10]

It makes much more sence to me now!!!

Thanks Guys!!!!

( Iv'e bin rippin last night for the first time with 2 Pass, and can't wait till i see the result!!!!)

GreetZ

V10