Bug in XviD-23092002-1 by Koepi (??)

[MoonWalker]

I have done the Matrix in XviD, and I came accross to some "shit" frames..My encoding settings were :

LoadPlugin("C:\DivX\GORDIA~1\mpeg2dec.dll")
mpeg2source("D:\Matrix\Matrix.d2v")
crop(3,78,712,420)
TemporalSoften(1,5,0)
LanczosResize(640,272)


Motion : 6
Quant : MPEG
CC used High/Low : 0/0
AltCC disabled..
I-Frame : 2-4
The rest at defaults

See pic..If you want I can attached more...This one is statical ie is apears only in this frame. I have found some tha are moving from key-frame to key-frame..

MoonWalker

[Defiler]

Do you have the XviD Analyzer report for this encode?
I've never tried to restrict the range of quantizers available for I-frames that tightly, myself.

[MoonWalker]

XviD Analyzer v0.14 by MoonWalker & MarcFD
e-mails : s_ilias@gmx.net & marc.fd@libertysurf.fr


Quantizers Analisis
---------------------

Quantizers Used For Movie :
------------------------------
Quant 2 Used : 92539 Times, Percentage Used : 49.70%
Quant 3 Used : 93648 Times, Percentage Used : 50.30%
Quant 4 Used : 1 Times, Percentage Used : 0.00%

Average Quantizer Used for Movie : 2.503

Quantizers Used For Credits :
--------------------------------
Quant 31 Used : 9967 Times.

MPEG Quantization Type Used 196155 timed, Percentage Used : 100.00%

No prevention happened


Intra-Frame (Key-Frame) Quantizers
------------------------------------

Movie
-------
Quant 2 Used : 2318 Times, Percentage Used : 88.17%
Quant 3 Used : 263 Times, Percentage Used : 10.00%

Credits
---------
Quant 31 Used : 48 Times, Percentage Used : 1.83%

Inter-Frame (P-Frame) Quantizers
------------------------------------

Movie
-------
Quant 2 Used : 90221 Times, Percentage Used : 46.62%
Quant 3 Used : 93385 Times, Percentage Used : 48.25%
Quant 4 Used : 1 Times, Percentage Used : 0.00%

Credits
---------
Quant 31 Used : 9919 Times, Percentage Used : 5.13%



Frame Analisis
----------------

Number Of Intra-Frames (Key-Frames) : 2629
Number Of Inter-Frames (P-Frames) : 193526
Total Number Of Frames : 196155

1.34% of the Movie is Intra-Frames (Key-Frames)
98.66% of the Movie is Inter-Frames (P-Frames)



Size Analysis
----------------

1-Pass Size : 1362597545 Bytes or 1330661 KBytes or 1299 MBytes
Scaled Size : 1066943033 Bytes or 1041936 KBytes or 1017 MBytes
Actual Size : 1066934717 Bytes or 1041928 KBytes or 1017 MBytes

Usefull Statistics
------------------
Compressibility : 78.30%
Relative Quality of XviD avi : 79.90%
Absolute Quality of XviD avi : 98.49%

I have done Matrix several times and I know that these restriction are not strong

@iago
BTW I have correct frame count in my analyze..Are you sure you are loosing frame counts?

MoonWalker

[Defiler]

I've never seen a compressibility score that high. Is that for real?

[MoonWalker]

Originally posted by Defiler
I've never seen a compressibility score that high. Is that for real?

I should be logical, since I used TemporalSmoother...

BTW The particular frame is 112735 P-Frame

MoonWalker

[-h]

I'd be most interested in some more examples.

-h

[MoonWalker]

Originally posted by -h
I'd be most interested in some more examples.
-h


-h I am searching a little bit cause I thing is from the vobs..Weird though..

Anyone has R2 version of Matrix? Can he see the vobs at frame 112735??

EDIT : I have contacted with Nitrogen, and he has the same "shits" in the same frames..So it's from the vobs...:rolleyes:

Please delete this post...

MoonWalker

[iago]

-> @iago: BTW I have correct frame count in my analyze..Are you sure you are loosing frame counts?

Hello MoonWalker,

I guess there still is a problem, but only occuring from time to time, and not always. I'll report that to you if I come across it again.

regards,
iago

edit: BTW, why are you resizing Matrix 672*272 (2.47:1)? Isn't the AR 2.35:1? I guess 640*272 (~2.353:1) would give you a smaller AR error.

[MoonWalker]

Originally posted by iago
[i]edit: BTW, why are you resizing Matrix 672*272 (2.47:1)? Isn't the AR 2.35:1? I guess 640*272 (~2.353:1) would give you a smaller AR error.

Well, I wrote it wrong:rolleyes: ..I didn't copy pasted and in my hurry I wroted wrong.sorry...

BTW Sorry for the False alarm..:rolleyes:

MoonWaker

[Koepi]

No problem, I'm glad it turned out to be no xvid bug or a bug introduced by me.

Regards,
Koepi

[Didée]

Originally posted by iago
[...]
edit: BTW, why are you resizing Matrix 672*272 (2.47:1)? Isn't the AR 2.35:1? I guess 640*272 (~2.353:1) would give you a smaller AR error.

An AR of 2.35:1 is only correct if you want to re-create a PAL signal.

For VGA with PAR (Pixel-AR) 1:1, Matrix AR IS 2.45:1.

Respecting ITU-R BT.601, it even is 2.5:1.

Never ever wondered why our hero looks so thin in the face ... ?