Quantcast MencodeME: a Newbie Oriented GUI - 0.23 is Out! - Page 7 - digitalFAQ.com Forums [Archives]
  #121  
04-19-2004, 12:15 PM
kwag kwag is offline
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Quote:
Originally Posted by sertinell

Kwag, are you sure that the kernel can be the problem?

Thanks
It can be a problem, but not exactly the Kernel
It could be a conflict with your binary image, because it was compiled with kernel 2.4.x and not with 2.6.x, which is what you have.
Kernel 2.6 breaks a lot of compatibility with the 2.4.x branch.

-kwag
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  #122  
04-19-2004, 12:50 PM
sertinell sertinell is offline
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Quote:
Kernel 2.6 breaks a lot of compatibility with the 2.4.x branch.

-kwag
OUCH !! :banghead: :banghead: :banghead: :banghead:

I must search a solution
  #123  
04-19-2004, 01:47 PM
Krassi Krassi is offline
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@sentinell:
I think Kwag is right, should be a kernel problem.
You are not already using an AMD64
Maybe it is a libc problem.

@vmesquita:
Great job
I've planned to implement something like this but hadn't the time to do so.
I wasn't able to follow the mencoder tests and your tool is a great start. Thank you.
My results are great so far
  #124  
04-19-2004, 02:02 PM
sertinell sertinell is offline
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Quote:
You are not already using an AMD64?
Maybe it is a libc problem.
I wish have one !! No I have a P4 1,4 Ghz
I'm sorry but I didn't think it. I Know people who changed his kernel from 2.4.x to 2.6.x and hadn't recompile all OS(KDE, Xfree..).
If only was the kernel, the solution is easy: VMesquita lend me the source code , I promise not show to the public. And I wil post my results and my 2.6.x release.

Thanks

P.S Excuse me my bad english [/url]
  #125  
04-19-2004, 03:00 PM
black prince black prince is offline
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Hi VMesquita,

1) I'm using template DVD to KVCD. Is there a way to override the
height and width crop settings that are grayed out in MEncoderME??

2) I may have asked this before, but is there a way to simulate
overscan??

3) I'm crashing using 2 pass and 1 pass gives me excellent picture
quality. Will 2 pass make a more accurate file size prediction??

4) My file size for video is way under (351MB vs 740MB as correct).
The whole movie is there and looks very good, but how can I
set vrc_maxrate, vbitrate, vrc_minrate, vrc_buf_size, keyint,
for more accurate predictions.
I currently have for 352X240 mpeg-1, vrc_maxrate=2000, vbitrate=(
bitrate calculator), vrc_buf_size=327, keyint=24, and vrc_minrate=300.

Thanks

-BP
  #126  
04-19-2004, 03:47 PM
digitall.doc digitall.doc is offline
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Quote:
Originally Posted by incredible
...so I will test that tomorrow again (tonight I gonna celebrate my birtday ).
Happy birthday my friend!!!

Hope you enjoy alone
...or much better with friends

  #127  
04-19-2004, 04:01 PM
incredible incredible is offline
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Thanks!!
  #128  
04-19-2004, 04:03 PM
vmesquita vmesquita is offline
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Quote:
Originally Posted by kwag
FIFO FIFO FIFO
Hint: mkfifo
Actually, I don't think there's a need for that since the method I am using is working very well. The problem with GTK2 is that for some reason the status line of mencoder is not being detected properly, so the log goes on forever (instead of the status line being rewritten every time). But I think this is a problem with wxGTK use of GTK2 , since it's "experimental".

@incredible
Looks like the problem is not related to my GUI, then. But in my tests this never happen, I always get a file near to the asked bitrate in both passes. Happy Birthday!

@sertinell
I don't think it's the kernel, because my Kurumin Linux has a package to update to 2.6 and I don't think they would put a precompiled package that makes everythingelse stop working. I can try to install the package since it keep both kernels and test.

Quote:
Originally Posted by black prince
1) I'm using template DVD to KVCD. Is there a way to override the
height and width crop settings that are grayed out in MEncoderME??
No there isn't. In the previous release they could be set manually but I grayed ou because I thought nobody would want to tweak this. I'll free this control then.
Quote:
2) I may have asked this before, but is there a way to simulate
overscan??
Right now no, because I graied out the controls. Unless you're using MakeAVIS, of course.
Quote:
3) I'm crashing using 2 pass and 1 pass gives me excellent picture
quality. Will 2 pass make a more accurate file size prediction??
In my experience, yes, specially in fast motion scenes. The accuracy is about the same to me.
Quote:
4) My file size for video is way under (351MB vs 740MB as correct).
The whole movie is there and looks very good
Sometimes mencoder just can't quantisize less than he's doing. It is already not dropping near any information (except for the scenes that could use more bitrate but max won't allow), so it just can't get the file bigger. If you're using a 352x240 with widescreen matherial, this is very possible.
  #129  
04-19-2004, 04:47 PM
digitall.doc digitall.doc is offline
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vmesquita,
When using makeAVIS template, it encodes mpeg2. It would be nice to have the option to encode either mpeg1 or mpeg2. Or better create a template with makeAVIS and mpeg1. I know it's very easy to make a new .conf template with one's settings. Just tell you if you want to add it to your next version.
Quote:
Originally Posted by vmesquita
Sometimes mencoder just can't quantisize less than he's doing. It is already not dropping near any information (except for the scenes that could use more bitrate but max won't allow), so it just can't get the file bigger. If you're using a 352x240 with widescreen matherial, this is very possible.
A way to solve this may be adding noise, because we cannot raise maxrate when encoding KVCD.
Somehow, in my tests (maybe because encoding mpeg2) mencoder is blockier than TMPGEnc when encoding with makeAVIS and aiming KVCD. These are my first tests with mencoder for KVCD. I think we can try to improve this (maybe higher scplx_mask value,...)
  #130  
04-19-2004, 05:01 PM
vmesquita vmesquita is offline
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@digitall.doc
Nice idea (mpeg1 MakeAVIS), I'll add that to the next release. It's very simple, anyway.
  #131  
04-19-2004, 05:41 PM
bigggt bigggt is offline
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@ BP

I had the same problem

my first encoed was 352x240 and got only 299 mb of video for an 89 minute movie

Not glad its happining to you but i am glad i'm not alone because i thought i was doing something wrong
  #132  
04-19-2004, 05:52 PM
fozzieb fozzieb is offline
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when i do avi to kdvd, i choose 720x576 but it says cropped size is 720x588
this is not standard dvd size and looks crap on stand alone player, i had 6 episodes of hustle at 640x368 the first four encoded to 720x576 but the last two don't (588 not 576)

any ideas?

bloody great gui by the way
  #133  
04-19-2004, 06:43 PM
vmesquita vmesquita is offline
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@fozzieb
Are you sure all the source movies had the same width/height? Because I don't see how this could happen if both movies have the same width/height. Could you please confirm this?
  #134  
04-20-2004, 04:55 AM
fozzieb fozzieb is offline
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it looks like the first four were 640x360 and the last two are 640x368

so it looks like that this is the problem, any ide how i can change the res quickly before i open in MencoderME?

cheers
  #135  
04-20-2004, 06:59 AM
vmesquita vmesquita is offline
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Right now, cropped resolution is locked. I'll unlock it.
Actually, the problem is that your source has a distorted aspect ratio: it should be minimmum 1.7777 at the most (for 16:9 encoding), but it's 1.739!

This happended because the person who did the AVI decided to do macroblock optimization. To do that, width and height are a bit distorted to be divisible by 16, optimizing compression. But this also created a "bigger" than 16:9 A.R. movie. I can add a check for this.
  #136  
04-20-2004, 07:37 AM
incredible incredible is offline
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Quote:
Originally Posted by vmesquita
Looks like the problem is not related to my GUI, then. But in my tests this never happen, I always get a file near to the asked bitrate in both passes. Happy Birthday!
Hi Vmesquita,

well ... do you use the build you do provide within the downloadable GUI mencoderME package?

I have the mencoderME.exe AND the mencoder.exe in the same folder, ... also that cgywin1.dll .... this folder is also settet in my systemVariables settings ... Ill do make an extra Folder somewhere else which will contain ONLY MencoderME.exe, cgywin1.dll, The Templates AND the mencoder.exe (your last generic build) ... so MencoderME GUI will look for mencoder.exe and will use ONLY that one in the same folder.
  #137  
04-20-2004, 02:32 PM
incredible incredible is offline
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NOW IM GETTING INTO CRISIS!!!!

Even when using 2pass never will get above 2000kbit avg eben if 3500kbit is set as bitrate

I tried all my builds of mencoder I have Whats going on on my Machine
  #138  
04-20-2004, 02:38 PM
vmesquita vmesquita is offline
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Quote:
Originally Posted by incredible
NOW IM GETTING INTO CRISIS!!!!

Even when using 2pass never will get above 2000kbit avg eben if 3500kbit is set as bitrate

I tried all my builds of mencoder I have Whats going on on my Machine
Probably mencoder just "can't quantisize more". Happens sometimes.Check with BV, probably the average quantisizer will be very close to 2, it just won't be exactly 2 because sometimes there're bitrate peaks and mencoder needs to quantize more to respect max bitrate.

EDIT:Forgot to answer you last questioon. MencodeME calls mencoder without specifying path, so it will use the mencoder build in the same folder. I think that if it doesn'r find, then any mencoder.exe in the path will be used, but I not sure about that.
  #139  
04-20-2004, 04:35 PM
incredible incredible is offline
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Interesting!!!

No matter if source is VOB or Makeavis (treid 4 diff. sources) --- it wont get above 2000kbit! (as said the weeks before I could get above) .

NOW I did an example and did set to Bitrate 400 and ..... it ends up in 1pass at 401!!! (Hell that 1pass is veeery exactly )

AHA!

Id did ad at the end of the Matrix values of the config file a

:vb_qfactor=0.7:vi_qfactor=0.8

Which lowers the quantisation and at least it goes up to 3300 when set 5500

Another test using this adding by setted 2500kbit! and 2489kbit resulted (1pass) .... now lets see how the bitrate peaks will behave
  #140  
04-20-2004, 08:43 PM
Dano Dano is offline
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@Incredible

I set scplx_mask=0 in MakeAVIS.conf and my files end up being a couple MB's over, very accurate. I am doing TV caps, about 43 minutes per CD, 704 x 480 IVTc'd mpeg-2. I set vrc_maxrate=3000, desired average bitrate usually around 2400. A setting of 0.3 for masking is rather high but is helpful when doing low bitrate one CD movie encodes. Try something like scplx_mask=0.03 and see if your bitrate goes up.

@Vmesquita

A big thanks for a job well done.
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-Dano
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