using DVDRebuilder and BitRate Viewer

[varekai]

Hello! :)

I use DVDRebuilder Pro 1.10.2 and settings movie only and
CCE SP trial VBR Bias:25 Qual Prec:16 VBR Passes:3
I just learned to use matrixes and have been testing a few.

Inserting the movie output into BitRate Viewer I can se there
are differences but I can't figure out how to interpreter
these curves and values I get. Below are values from 4 different
sessions, 3 with inserted matrixes and 1 from the original movie.
The movie is the anime Nausica.

1.
The values from original movie and "Myiasaki" matrix are
close to each other. Are the BRV values from this matrix and
from the original an example of how it should look?
Is it optimal when values from origial movie and encoded
movie are close to each other?

2.
I have been trying to find a player to use for viewing the output
movie and to get snapshots from the 4 movies at the exact same
frame. Gabest Media Player Classic 6.4.9.0 works well and it's
possible to get the exact same frame, but I can't find a way to
get the snapshot in the right aspect ratio 16:9. I think I have
tried every possible settings but no luck. PowerDVD doesn't have
the option to get the exact same frame and I don't know of any
other player that will do what I need. Any ideas what to use?

regards varekai

==================================================================

Here are the values from BitRate Viewer:

========================================

CCE Anime setting
[img=http://img95.imageshack.us/img95/9476/brvanimemd8.th.gif] (http://img95.imageshack.us/my.php?image=brvanimemd8.gif)
________________________________________
...............Current....Peak....Average
________________________________________
Bitrate:......5573.......9244....4870
Q.level:......3.74........7.11....2.95

========================================

CCE Natural setting
[img=http://img143.imageshack.us/img143/9383/brvnaturalqc8.th.gif] (http://img143.imageshack.us/my.php?image=brvnaturalqc8.gif)
________________________________________
...............Current....Peak....Average
________________________________________
Bitrate:......4777.......9244....4859
Q.level:......4.74.......7.71....2.91

========================================

CCE Miyasaki matrix inserted
[img=http://img143.imageshack.us/img143/5753/brvmyazakicq4.th.gif] (http://img143.imageshack.us/my.php?image=brvmyazakicq4.gif)
________________________________________
...............Current....Peak....Average
________________________________________
Bitrate:......4751.......9502....4848
Q.level:......8.96.......12.41....6.69

========================================

Original movie
[img=http://img143.imageshack.us/img143/1619/brvoriginallr1.th.gif] (http://img143.imageshack.us/my.php?image=brvoriginallr1.gif)
________________________________________
...............Current....Peak....Average
________________________________________
Bitrate:......5615.......9562....5901
Q.level:......9.10.......14.85....7.31

========================================

[feedback]

I can't figure out how to interpreter
these curves and values I get.
Perform a seach on quantization.

Bitrate should be self-explanatory (the rate of bits at any given moment per the graph).

I'll start you off, take a look at the below link.
http://forum.doom9.org/showthread.php?t=105348&highlight=quantization

P.S. One other thing, quantization matrices are basically filters that help video compressibility by getting rid of detail determined by the values. See the link below...
http://forum.doom9.org/showthread.php?p=609672#post609672

[varekai]

Hello! :)

Thanks feedback for your answer! It's much appreciated. :)

I've read through the posts and links and now I have a
better picture of what a matrix is and what it does.
It's not so easy though to adapt it all to a practical use.
I certainly understand bitrate, like you said it's pretty
much self-explanatory. My question is; how do I know what
matrix to use when having the bitrate and Q.level results
from the original movie using BitRate Viewer?

If using BitRate Viewer is the wrong method to determine
what matrix to use could you please explain what I should
use instead and how to use it? Or point me to where I could
get more info about how to determine what matrix to use?

Again, thanks a lot for you help feedback! :)

regards varekai