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Old 2008-09-11, 03:06   Link #181
Dark Shikari
x264 Developer
 
 
Join Date: Feb 2008
Quote:
Originally Posted by OroSaiwa View Post
Talking about VBV and since Dark Shikari is an x264 developer, I keep having problems of VBV buffer underflow with my encodes, either I specify the VBV Buffer Size and Max Bitrate according to this http://rob.opendot.cl/index.php/usef...es-and-levels/ or leave it automatic.

I started to panic when I saw so many VBV underflows in avinaptic but then I checked another couple of encodes (CGR2 HD of Eclipse) and saw that avinaptic gave the same errors. It might be an avinaptic bug since it's not been updated since November?

Checked on Doom9 and saw this issue is frequent but I can't post there for another day.

Nicholi told me it's not sth to worry too much about if it's underflow. Overflow would be bad.

Anyway this is my line from my megui profile:



I'm ripping Code Geass Blu-rays at 1080p, mkv softsub so mostly for PCs.

I keep doing experiments and trying new things to introduce in the Italian fansub scene

Thnx to TheFluff and Mentar for their help and their patience.
I've been improving VBV a lot lately, so make sure you're using the latest x264.

Are you using 2pass mode? VBV underflows on the first pass don't matter if they're gone on the second.
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Old 2008-09-11, 03:15   Link #182
OroSaiwa
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Join Date: Jun 2008
Latest x264 since I update megui with the dev URL too.
Two pass and the underflows are on the second but if there's no problems with PC playback I'm ok with it.
I'll try again tonight with built 967 but don't know how much will it change. It might be my x264 settings.
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Old 2008-09-11, 03:16   Link #183
Dark Shikari
x264 Developer
 
 
Join Date: Feb 2008
Quote:
Originally Posted by OroSaiwa View Post
Latest x264 since I update megui with the dev URL too.
Two pass and the underflows are on the second but if there's no problems with PC playback I'm ok with it.
If you're doing PC playback only you don't need VBV...

Any chance you can get a set of first and second pass settings that generate the underflow, along with the smallest possible input sample that causes the problem? If I have that, I can debug the issue and (yet again) improve VBV to fix it.
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Old 2008-09-11, 03:28   Link #184
OroSaiwa
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Join Date: Jun 2008
Ok, I'll post on the Doom9 thread about it and yeah only PC playback since I'll try the ordered chapters too.
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Old 2008-09-12, 18:47   Link #185
tugatosmk
1982 tuga
 
 
Join Date: Aug 2004
Location: Portugal
internal virtualdub filter on avisynth...

I have a DVD raw that's so grainy it hurts. So far, and after exhaustive search, the only filter, IMO, has the best perfomance in cleaning the noise is Virtualdub's temporal smoother.

Unfortunately, it's an internal filter, there's no vdf file availabe in virtualdub's plug-in folder. After googling, I found some help about external virtualdub filters' syntax for avisynth.

Is there a way to make avisynth use that filter (or, for that matter, any other internal virtualdub filter)?
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Old 2008-09-12, 19:45   Link #186
Dark Shikari
x264 Developer
 
 
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Quote:
Originally Posted by tugatosmk View Post
I have a DVD raw that's so grainy it hurts. So far, and after exhaustive search, the only filter, IMO, has the best perfomance in cleaning the noise is Virtualdub's temporal smoother.
Try one of the following:

fft3dgpu (relatively fast for a powerful temporal denoiser)
dfttest (extremely powerful but blurs more than some others, and is slow)
mvdegrain and all variations (temporaldegrain, etc)
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Old 2008-09-14, 12:51   Link #187
KireiMangetsu
Junior Member
 
Join Date: Sep 2008
i'm an amateur avisynth user, i wanna ask a question

my script is like this
Code:
DirectShowSource("video.avi",fps=119.88,convertfps=true)
FDecimate(23.976)					
converttoyv12()					
deen("a3d")					
vd_warpsharp(27,"yv12")				
temporalsoften(4,4,8,15,2)			
MSharpen(threshold=15)
i'm using xvid and bitrate about 1200

but



like this the pixels getting square and creating a bad image (especially on full screen), how can i suppress that?
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Old 2008-09-14, 13:40   Link #188
martino
makes no files now
 
 
Join Date: May 2006
A picture of the source (and filtered lossless too), and in png may be helpful. Other than that...

1) Why convert the fps to 119.88 and then back down to 23.976?
- Just use fps=23.976 and convertfps=true

2) You might want to try better, newer denoisers, rather than Deen.
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Last edited by martino; 2008-09-14 at 18:32. Reason: grammar mistake
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Old 2008-09-14, 14:41   Link #189
Dark Shikari
x264 Developer
 
 
Join Date: Feb 2008
Quote:
Originally Posted by KireiMangetsu View Post
like this the pixels getting square and creating a bad image (especially on full screen), how can i suppress that?
By not using Xvid?
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Old 2008-09-19, 08:05   Link #190
KireiMangetsu
Junior Member
 
Join Date: Sep 2008
thanks for your reply...
encoding with h264 takes a long time nad also i thought "maybe i can create good quality with xvid too" but i was wrong I guess i only use h264 from now on.

Quote:
2) You might want to try better, newer denoisers, rather than Deen.
Which one do you prefer? Is vaguedenoiser or FluxsmoothT good?
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Old 2008-09-21, 02:52   Link #191
dragon5152
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*Fansubber
 
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Quote:
Originally Posted by KireiMangetsu View Post
"maybe i can create good quality with xvid too" but i was wrong
You can create "ok" looking videos with xvid. Yours seems worse then it should be, even with xvid.
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Old 2008-09-21, 04:09   Link #192
edogawaconan
LOL?
*Fansubber
 
 
Join Date: Aug 2006
Location: Indonesia
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Quote:
Originally Posted by dragon5152 View Post
You can create "ok" looking videos with xvid. Yours seems worse then it should be, even with xvid.
sure you can. with high enough bitrate.
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Old 2008-09-22, 01:29   Link #193
MoonLight-
Lucid Light
 
 
Join Date: May 2008
Hi

just wandering.. again and again :P
how can I create a creditless of op/ed from dvd source if that possible ?

thanks ^_^ !
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Old 2008-09-22, 02:20   Link #194
Nagato
幻想郷
 
 
Join Date: Dec 2006
Location: 幻想郷
It's usually added as special/extra, if any. you can check it from the dvd menu.
Extract it with dvd decrypter, etc and proceed to encoding. There's also guide in megui wiki.
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Old 2008-09-22, 12:10   Link #195
Sylf
翻訳家わなびぃ
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Age: 40
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I bet you can play around with filters like delogo. I never touched it myself, but I think it requires careful creation of masks, which requires considerable amount of work, and the outcome just won't still be very good. Using creditless OP/ED included in the DVD (as explained by Nagato) is the way to go.
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Old 2008-09-22, 15:22   Link #196
martino
makes no files now
 
 
Join Date: May 2006
Quote:
Originally Posted by KireiMangetsu View Post
Which one do you prefer? Is vaguedenoiser or FluxsmoothT good?
VagueDenoiser is actually my personal favourite, but don't let that influence you. You'll just have to figure out yourself which one suits your uses...

Some other to look at; FFt3DFilter, dfttest, RemoveGrain, at_denoise, FluxSmooth, MVTools/MVDegrain, DegrainMedian, TTempSmooth, STMedianFilter and lots of scripts that I wouldn't be able to tell you about since I don't remember using a single one. I'm sure that somebody else will be able to help you on that though.
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Old 2008-09-25, 15:51   Link #197
KireiMangetsu
Junior Member
 
Join Date: Sep 2008
thanks for all your answers i really appriciate... that works really good...

Now i have another question
with ImageWriter filter, can we make the logo move? If possible, how?
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Old 2008-09-25, 16:29   Link #198
martino
makes no files now
 
 
Join Date: May 2006
I'm not personally sure what ImageWriter is... but motion can be created with Animate().
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Old 2008-09-25, 18:36   Link #199
TheFluff
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Join Date: Dec 2005
Location: ISDB-T
Age: 27
Quote:
Originally Posted by KireiMangetsu View Post
with ImageWriter filter, can we make the logo move? If possible, how?
the imagewriter() function writes video frames to image files on your harddrive, it does not overlay, animate, or in any way interact with logos
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17:43:13 <~deculture> Also, TheFluff, you are so fucking slowpoke.jpg that people think we dropped the DVD's.
17:43:16 <~deculture> nice job, fag!

01:04:41 < Plorkyeran> it was annoying to typeset so it should be annoying to read
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Old 2008-09-26, 06:16   Link #200
KireiMangetsu
Junior Member
 
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i guess, i couldn't explain it well,
i have an image file (.png) and i want to write into video file, also make it move in the pixels
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