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-   -   possible to encode Half-D1 resolution as Anamorphic? (http://www.digitalfaq.com/archives/encode/11858-possible-encode-d1.html)

Jellygoose 08-31-2004 05:10 PM

possible to encode Half-D1 resolution as Anamorphic?
 
Hi all!

I read somewhere that it is possible to encode at Half-D1 resolution (target is DVD+R) and use it as Anamorphic...
Well I tried it with "The Matrix" today, but I must have screwed up somewhere. The picture is squished horizontally. The stream has a 16:9 flag in it, and when I patched it to 4:3 with DVDPatcher, picture was normal again. however I want an Anamorphic stream to begin with... :roll:

Here's the script I used... any help would be appreciated!

Code:

Mpeg2Source("E:\Matrix1\matrix1.d2v",cpu=4)
Undot()
Deen()
DCTFilter(1,1,1,1,1,1,0.5,0)
BicubicResize(352,424,0,0.6,0,0,720,576)
Addborders(0,76,0,76)
LetterBox(16,16,16,16)


jorel 08-31-2004 05:53 PM

little hint to get more compression Jell:

Mpeg2Source("E:\Matrix1\matrix1.d2v",cpu=4)
Undot()
BicubicResize(352,424,0,0.6,0,0,720,576)
Deen()# or Deen("a3d",3,4,1,4) for light cleaning,great compression but slow
DCTFilter(1,1,1,1,1,1,0.5,0)
Addborders(0,76,0,76)
LetterBox(16,16,16,16)

incredible 09-01-2004 01:06 AM

Jell,

kick the dctfilter() out as you use it BEFORE resizing, thats not the purpose as you already loose high frequencies during downsizing.

jorel 09-01-2004 07:34 AM

Quote:

Originally Posted by incredible
Jell,

kick the dctfilter() out as you use it BEFORE resizing, thats not the purpose as you already loose high frequencies during downsizing.

true! :wink:
i had problems with DCTfilter in the past(was posted in scripts forum) and was forgot!...good memory ink!

Jellygoose 09-01-2004 10:12 AM

thanks people! I'll try the settings out, and I also found out where I screwed up with the resizing! :wink:

incredible 09-01-2004 11:56 AM

352 width at anamorph makes NO sense as...

1024/352=2,90 ...means almost 3 times scaled at the width to finally get the 1024x576 (full desqueezed-anamorph at PAL TV!). The result is a very noticable blurried image.

In Regular 1024/704 = 1,45 width scaling factor on TV

Jellygoose 09-01-2004 02:48 PM

ok i see your point inc... then tell me what i can do. i want to backup 388 minutes of video on a DVD+R with acceptable/good quality. that's 6,5 hours. according to the main page KDVD can hold up to 6 hours in Full-D1 (!!) resolution. CQ-Matic gives me an average bitrate of ~1350kb/sec if I use 192kb/sec mp2 sound files... In my eyes that's WAY too less bitrate for 704x576 resolution. even in 352x576 (Anamorphic) the quality simply sucks...

Any ideas?

rds_correia 09-01-2004 04:05 PM

Hi J3lly :)
I may be wrong but the "hold up to 6 hours of video" means only video and no sound.
But I may be wrong.
Cheers

incredible 09-01-2004 04:26 PM

You cant say 704x576 up to 6h on one DVD-R in general.
It depends on the movie and its complexibility. So you have to test and ... as I see you already did.
Well 6h also can be done at 352x576 Letterboxed and TV episodes even will look fine at 352x288 ... ask phil as he is doing that a lot.

Dialhot 09-02-2004 03:12 AM

Quote:

Originally Posted by rds_correia
I may be wrong but the "hold up to 6 hours of video" means only video and no sound.

And KVCD are up to 2 ours of silent movie too ?
Of course, you are wrong :-D


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