Bitrates: Success (CQmatic & Calcumatic)

jorel · #1 10-24-2003, 05:27 PM

CQMatic1202 & CalcuMatic106

harry potter - a camara secreta(secret chamber?)

153 minutes

script used
Undot()
Asharp(1,4)
BicubicResize(320,208,0,0.6,0,6,720,46

Deen("a3d",3,4,1,4)
DCTFilter(1,1,1,1,1,1,0.5,0)
AddBorders(16,16,16,16)

352x240 mpeg1 (23,976)
CQ_VBR 21,56 found(fast) in CQMatic and encoded with tmpgenc

653mb (668.849kb)

audio mp2 from Headac3he 128 - 48k

139mb (142.832kb)

muxed in BBMpeg as vcd

802mb (822.004kb) ---> 1 cdr 700mb (80 minutes)

image quality?
good!

perfect!

now "doing chapters" (vcdeasy) to burn with nero!

Dialhot · #2 10-24-2003, 06:03 PM

Why did you use a static script and not the optimal MA one ?

Note1 : you're player support MPEG1 at 23.96 fps ? That is not a standard framerate. Be careful ! I thought my player supported it also until the day I encoded a subtitled movie : the subtitles were flickering so much that it was impossible to watch ! For sure, all the image was flickering like the subtitles but I never noticed it.
Since this day, when I have a 23.96 source, I used MPEG2 and "3:2 pulldown during playback".

Note2: a VCD resolutoin with overscan=2 ? Thats is big ! Don't you see the border on you TV with such values ?

jorel · #3 10-24-2003, 06:12 PM

Quote:

Originally Posted by Dialhot

Why did you use a static script and not the optimal MA one ?

Phil,
the first reason is "for test" the quality,i really like this deen parameters posted!
the second is that i don't like the "blur" in the moviment scenes from MA!

ps:
i did tests with lanczos without asharp too!
is seamless(quality and size) with bicubic and asharp but
i see better contrast with bicubic and asharp(my taste)!
using only lanczos is faster!

Zyphon · #4 10-24-2003, 06:12 PM

Thanks for posting your results jorel its good to have some comparisons.

Quote:

Originally Posted by Dialhot

Note1 : you're player support MPEG1 at 23.96 fps ? That is not a standard framerate. Be careful ! I thought my player supported it also until the day I encoded a subtitled movie : the subtitles were flickering so much that it was impossible to watch ! For sure, all the image was flickering like the subtitles but I never noticed it.
Since this day, when I have a 23.96 source, I used MPEG2 and "3:2 pulldown during playback".

How do i go about doing the pulldown thing please dialhot could you explain what i have to do in these cercumstances, thanks.

jorel · #5 10-24-2003, 06:18 PM

Quote:

Originally Posted by Dialhot

Why did you use a static script and not the optimal MA one ?

Note1 : you're player support MPEG1 at 23.96 fps ? That is not a standard framerate. Be careful ! I thought my player supported it also until the day I encoded a subtitled movie : the subtitles were flickering so much that it was impossible to watch ! For sure, all the image was flickering like the subtitles but I never noticed it.
Since this day, when I have a 23.96 source, I used MPEG2 and "3:2 pulldown during playback".

Note2: a VCD resolutoin with overscan=2 ? Thats is big ! Don't you see the border on you TV with such values ?

hey Phil,you edited the post with more question!

note1:
yes,my 2 players can do it,and was without subs.

note2:

i don't see in the tv .....i'm burning a cdrw for test!

thanks for advice!

Zyphon,
good questions!

Dialhot · #6 10-24-2003, 06:25 PM

Quote:

Originally Posted by jorel

the first reason is "for test" the quality,i really like this deen parameters posted!

So let me tell you that I drop Deen recently because it removes to much details (even if I didn't try the last parameters posted).

I'm currently testing this :

Code:

Convolution3D(1, 6, 12, 6, 8, 2.8, 0)

Tonight I'm doing my second movie with this, so I can be positive about its quality. But if you want to try.

My complete script is :

Code:

BlindPP(cpu=4)
Convolution3D(1, 6, 12, 6, 8, 2.8, 0)
LanczosResize(...)
Undot()
TemporalSoften(2,7,7,3,2)
DCTFilter(1,1,1,1,1,1,0.5,0)
AddBorders(...)

Quote:

the second is that i don't like the "blur" in the moviment scenes from MA!

ME TOO !
I tried the MA script a lot but I never burnt any of the movie I did ith it. Just quick watch for testing purpose ! But I use it for other people asking le to do backup of their DVD. Don't ask me why

kwag · #7 10-24-2003, 07:03 PM

You can raise the treshold (trigger point) in the MA script, to start the blurr at a higher value. This way, only on very fast scenes blurring will be applied.

Change the line in the MA script from:
SwitchThreshold = (Width<=352) ? 3 : (Width<=480) ? 2 : 1
To:
SwitchThreshold = (Width<=352) ? 12 : (Width<=480) ? 6 : 3

-kwag

jorel · #8 10-24-2003, 07:29 PM

Quote:

Originally Posted by kwag

You can raise the treshold (trigger point) in the MA script, to start the blurr at a higher value. This way, only on very fast scenes blurring will be applied.

Change the line in the MA script from:
SwitchThreshold = (Width<=352) ? 3 : (Width<=480) ? 2 : 1
To:
SwitchThreshold = (Width<=352) ? 12 : (Width<=480) ? 6 : 3

-kwag

thanks for this and for the news in the MA script that you did today!

audioslave · #9 10-25-2003, 10:33 AM

@Dialhot & jorel

Do you still use 2000 for max. bitrate or do you raise it to 2500 with your static scripts

And what about the min. bitrate? Do you always use 300 for that and not the "Average X 0.57" from CalcuMatic?

jorel · #10 10-25-2003, 05:29 PM

Quote:

Originally Posted by audioslave

@Dialhot & jorel

Do you still use 2000 for max. bitrate or do you raise it to 2500 with your static scripts

And what about the min. bitrate? Do you always use 300 for that and not the "Average X 0.57" from CalcuMatic?

@ audioslave
in this case(352x240)mpeg1 i use min300 and max2000.
for mpeg2(352x480 or more) i use min300 and max2500.
i never use "Average X 0.57" in all situations,

i use the average bitrate and time from CalcuMatic and use in CQMatic
to get the CQ and......encode!
see that i got 802mb (822.004kb) ---> 1 cdr 700mb (80 minutes)
using one source with 152 minutes without problems!

@ Phil
you was (is) right

with overscan 2 give big black borders in tv with 352x240!
i re encode with overscan 1 and got CQ18,99 and final size

801mb (820.283kb)with audio 128-48k! (movie 152minutes)
using CalcuMatic and CQMatic like posted !

script used ("cocktail" to got more CQ)
mpeg2source("D:\DVD\HP.D2V")
Convolution3D(1,6,12,6,8,2.8,0)
Undot()
LanczosResize(336,224,0,0,720,480)
Deen("a3d",3,6,1,6)
DCTFilter(1,1,1,1,1,1,0.5,0)
AddBorders(8,8,8,

a big mistake in the name of the movie:
is harry potter - philoso~... stone and not secret chamber!

Dialhot · #11 10-25-2003, 08:00 PM

For my part : never used the 0.57 value also, min = 64 everytime, max to 2300 for usual "not so long" movie (1h40), 2000 for movie near 2 hours.

With such values and my last static script, CQMAtic gave me 3 movie of 796, 802 and 806 MBytes (note that I don't use the CD80 setting but a manual setting of 807Mb in calcumatic). So all that is perfect !