Quantcast MencodeME: a Newbie Oriented GUI - 0.23 is Out! - Page 9 - digitalFAQ.com Forums [Archives]
  #161  
04-21-2004, 03:49 PM
digitall.doc digitall.doc is offline
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inc,
how does it behave the Q graphics in bitrateviewer when lmin set at 0.1?. I ask because some tests I did some time ago, with vqmin=2, when lmin=0.5 the Q graphic was almost flat and stuck at 2.
With vqmin=1 and lmin=0.1 I'm afraid you'll get this almost flat Q graphic (almost like vqscale=1)... not good at all (doesn't adapt to the film).
But, yes, I know, you just tested it to see how could you raise average bitrate, isn't it?. I just make the commentary in case people want to test lmin<vqmin, I advise not to make lmin too below vqmin.
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  #162  
04-21-2004, 03:53 PM
incredible incredible is offline
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Quote:
Originally Posted by digitall.doc
With vqmin=1 and lmin=0.1 I'm afraid you'll get this almost flat Q graphic (almost like vqscale=1)... not good at all (doesn't adapt to the film).
Well the Q curve behaves very dynamically and its nice. This doesnt speak for the "theoretical" quality (as I figured out in bitrateviewer the q curve is NOT analog to the given quality!!) .... but the q curve is nice and NOT flat

Maybe thats cause of the other params which are used in the config files.
  #163  
04-21-2004, 04:37 PM
maurus maurus is offline
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Quote:
Originally Posted by VMesquita
1) If you are converting a DVD: Rip you DVD using DVDDecrypter, but first go to Tools/Settings/IFO Mode and change file splitting to none. This way DVDDecrypter will create a BIG VOB with the whole move, instead os splitting in 1GB pieces. If you are going to use a AVI source, skip this step.
Can I extract the AC3 audio band in the same action, with DVDDecrypter, or I need another application (DVD2AVI)?

Thanks.

-Maurus
  #164  
04-21-2004, 05:01 PM
vmesquita vmesquita is offline
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@maurus,

You can use DVDDecrypter to extract audio.
  #165  
04-21-2004, 06:40 PM
Prodater64 Prodater64 is offline
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When we make a change in audio bitrate, the video bitrate grayed under audio bitrate selection box, don't change at first time. Only selecting twice the audio bitrate desired, the video bitrate change. Does MencodeMe take the correct value at first time (even I would see the erroneus one)?


MencodeMe hang up before ending 1st. pass encode!!!
I test 2 differents avi sources, with DVD2KVCD template (to obtain a mpeg1 file).
  #166  
04-21-2004, 07:27 PM
Prodater64 Prodater64 is offline
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Could an avs file be played or mapped to a video device in such a form that MencodeMe (Mencoder/FFmpeg) grabs video with the following command line:

-vd device'

Would it be usefull or not?
  #167  
04-22-2004, 02:42 AM
maurus maurus is offline
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Quote:
Originally Posted by vmesquita
@maurus,

You can use DVDDecrypter to extract audio.
I Know how extract .VOB with de video and audio, but ...

How can I extract the .ac3 file?

Another question. I have try MEncoder-Me .02 last night and I see hang up it this morning.

-Maurus
  #168  
04-22-2004, 03:21 AM
Abond Abond is offline
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Quote:
Originally Posted by Prodater64
MencodeMe hang up before ending 1st. pass encode!!!
I test 2 differents avi sources, with DVD2KVCD template (to obtain a mpeg1 file).
Confirmed, here the same. One possible reason is that now the messages from the DOS box are displayed within the GUI. Running the same comand line in DOS box shows multiple warnings as this:
Code:
[mpeg1video  fourcc]rc WARNING clipping 1 dct coefficients to -255..255
Obviously the GUI cannot handle these warnings and hangs. Interestingly if you encode with default matrix (not Notch) the warnings doesn't appear.
In my opinion the mpeg1 encoding in mencoder is broken somehow. Through makeavis it produces unwatchable video - there are blocks in the picture which even do not belong to the video at all - totally diferent texture.
  #169  
04-22-2004, 03:47 AM
digitall.doc digitall.doc is offline
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Quote:
Originally Posted by incredible
Well the Q curve behaves very dynamically and its nice. This doesnt speak for the "theoretical" quality (as I figured out in bitrateviewer the q curve is NOT analog to the given quality!!) .... but the q curve is nice and NOT flat
Nice inc, that's good . I was afraid of a flat Q curve for my tests, but there I had vqmin=2 and average quantizer was 2 -> flat Q curve.
If your average Q is over 1 (you're right, maybe due to the rest of settings...), then your Q curve behaves normally.
  #170  
04-22-2004, 06:20 AM
incredible incredible is offline
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Result of a whole encoding where lmin was set to 0.1!

I did choose 2pass on 704x576 (even on makeavis incl. temporal filtering via avs = 35 fps ).

Shurely the avg bitrate was matched EXACTLY .... the max Bitrate was respected!!! (I did lower it to 7000) When prviewed in VdubMod = A more than wonderful picture at 2250kbit avg! avg Quant = 1.73!! (just theoretically, you know my opinion about BVs Q rate output according to REAL quality which can be seen finally when previewing).
The Bitrate Lows did reach sometimes 120kbit .... thats a bit low.

NOW! lets see how DVDlab likes that one as in the past I got often "GOP out of memory" issues when generating the VOBs!!
In the Mediachance forum they said "closed GOPs" would cure that.

BUT .. I do not see in mencoders options WHERE and how to set a Closed GOP!
  #171  
04-22-2004, 07:12 AM
vmesquita vmesquita is offline
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@maurus and Abond
I have no idea why this is hanging, because the GUI just display messages. I'll make a test today. One possibility is that mencoder is issuing so many messages that it is overflowing the textbox, but it would need to issue 64 kb of messages.
I'll change the instructions to include ripping audio using DVDDecrypter, since this step is needed for everyone.

@incredible
There's a new DVD-Lab pro beta out. You shouldn't need closed GOPs. From what I understand, the only reason to use closed GOP is to make cutting the MPEG easier, but it reduces compressibility...
  #172  
04-22-2004, 07:30 AM
incredible incredible is offline
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Quote:
Originally Posted by vmesquita
There's a new DVD-Lab pro beta out. You shouldn't need closed GOPs. From what I understand, the only reason to use closed GOP is to make cutting the MPEG easier, but it reduces compressibility...
I do refer to exactly that new version of DVDlab
(Cause of up to 8 Audio tracks support! per VTS)

YEP, normally the purpose of Closed GOPS is for editing making easyer, but the compressibility wont make it that less.

But anyway I did read in the Forum of DVDlab that a closed GOP solved that problem in DVDlab ... maybe still an issue of that beta? who knows.
A reencoding using CCE and Closed GOP solved my problem
(I didn't try CCE and still open GOP - thats would be the way how to see if the problem really bases on DVDlab or not.)
  #173  
04-22-2004, 07:37 AM
vmesquita vmesquita is offline
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@incredible
There's DVD-Lab Pro Beta 2 out, I am not sure if you got this one.
  #174  
04-22-2004, 07:48 AM
incredible incredible is offline
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Quote:
Originally Posted by vmesquita
@incredible
There's DVD-Lab Pro Beta 2 out, I am not sure if you got this one.
Ill check that!
I hope Its not the release I already got.
Cause beside this I would "love" to also be updated to reset to new 30days period!
  #175  
04-22-2004, 08:45 AM
Prodater64 Prodater64 is offline
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Come on VM, we are three guys in same page with hanging problems. Could you give us further help?
What information do you need?
  #176  
04-22-2004, 09:43 AM
Jellygoose Jellygoose is offline
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@inc: would you mind posting your settings you used with mencoder to obtain those beautiful results?
I'd like to test them against some settings of mine. because i can't get mencoder to respect the max. bitrate...
please post your .ini and.bat file to check...

also what build are you using?
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  #177  
04-22-2004, 10:04 AM
incredible incredible is offline
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Im just using Vmesquitas GUI and I just did set lmin=1 to lmin=0.1 in the config file, ... thats all .... that allows even less quantisation (as I did understand) ... and "breaks" the AVG 2000kbit border so you can assume how my output comes out even at that 2000-2500 avg bitrates. Beautiful for encodigs which will perfect fit 2 Movies on one DVD-R incl. 2 Audiotracks (5.1 CH ,256kbit) for each movie.
  #178  
04-22-2004, 10:07 AM
Zyphon Zyphon is offline
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Quote:
Originally Posted by incredible
15 = PAL KDVD
18 = PAL KDVD

24 = NTSC KVCD
25 = PAL KVCD
Hi Inc,

This confused me as there are 3 PAL's and Only 1 NTSC.

Should be:

15 = NTSC KDVD
18 = PAL KDVD

&

24 = NTSC KVCD
25 = PAL KVCD

I hope you can clear this up for me please buddy.

Thanks in advance.
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Regards.

Michael.
  #179  
04-22-2004, 10:10 AM
incredible incredible is offline
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You're Right!! I did type wrong

15 = PAL KDVD ------> 100% DVD compilant
18 = NTSC KDVD ----> 100% DVD compilant

24 = NTSC KVCD ----> official KVCD setting, means OneCD encoding purpose
25 = PAL KVCD ------> official KVCD setting, means OneCD encoding purpose

Thats how it should be

You also can try to go higher even on KDVD IF your DVD player in DVD mode supports it .... so you should first try on a DVD-RW
  #180  
04-22-2004, 10:22 AM
Zyphon Zyphon is offline
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Thank you very much inc for such a quick reply I appreciate you clearing that up for me and thanks for the tip I have a DVD-RW handy ill do some testing.

Thanks again.
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Michael.
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