Parameters

[Bhodi]

Hi,

When using GKnot the normal movies don't give me any problems in getting a good bits/pixels value and compress. value.
But when doing a videoclip I'm having trouble in deciding what size the movie should be in MB, what correct values are for bits/pixels etc. I don't have a clue to determine the filesize I should take and I'm getting high (0.3-0.4) values for bits/pixel. I'm not sure what is good. The guides talk about 0.2 but that's in case of a full cd movie. So are there any guidelines for these values ??

Bhodi

[Mac Sidewinder]

This is basically the same question you asked in the newbie forum. Please don't crosspost. See below...


Well there can be a few different factors when deciding this. How many videos do you want on a single cd? How long are each? (See what I'm getting at). What I usually do is enter around 1000 for bitrate and see how big the resulting file is calculated at. Then decide if I want it to be bigger or smaller. It will also depend on what type and quality of audio you are using, mp3, aac, etc.

Try this and see what bit/pixel values it gives you.

Mac

[Bhodi]

Sorry, didn't mean to crosspost, thought this was not the same question (maybe basically it is :) ). I think I get it, the only thing i still have questions about is the bits/pixel part. Is this no problem as long as it shows up in a gray color and not red or yellow in GKnot?

Thnx
Bhodi

[Mac Sidewinder]

Correct - the color indication is simply warning you that a potential problem may exist. It still may look fine to you. If you are wanting to encode at the selected parameters and get a red or yellow indicator simply encode a sample and see how it looks to you.

If you keep the bit/pixel above .20 you should be alright (just a general statement, depending on the input, this may or maynot be enough).

I always encode a small sample (usually 1 chapter with action if possible) and check how it will look before I waste 4 hours on something that I am not going to be satisfied with.

Mac