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Old 7th December 2004, 03:17   #201  |  Link
Peter Cheat
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@Yuri
SegmentedDirectShowSource is not the same as SegmentedAVISource, one uses DirectShow, the other uses Video For Windows (I think). Try SegmentedDirectShowSource and see if the same error comes up (it may or may not). Adding AVI adds complications, the easiest thing to do would be to automatically create an AVS script to handle the AVI. This would obviously not solve your problem. I suck at VFW programming, and suck even more at DirectShow. Sometimes DirectShow is faster, depending on the codec being used (ffdshow has a Huffyuv DirectShow Decoder).
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Old 7th December 2004, 19:01   #202  |  Link
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Thank you, Peter, for your explanation and your contribution.
I'll try SegmentedDirectShowSource.

Best regards
Yuri
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Old 8th December 2004, 05:39   #203  |  Link
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if you look back you will find QuEnc has had a few problems with avisource() that were fine with directshowsource() aswell. hopefully those problems are fixed now in QuEnc 0.56. did you try segmented with QuEnc 0.56 aswell by the way ?

Last edited by dragongodz; 8th December 2004 at 05:44.
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Old 8th December 2004, 23:05   #204  |  Link
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ok so i have tried both NuEnc and QuEnc with the encodings I was doing, and the stuttering I described was only present on the NuEnc versions.

Here are the command lines I used:
(note: QLB was used on all as the matrix)

NuEnc Command Line Options:

-i ep1.avs
-o ep1.m2v
-b 2148
-maxbitrate 9550
-dc 10
-priority 5
-pass 3
-mpeg2
-vbr
-scene
-qmin 2
-qmax 31
-mbd 2
-cmp 1
-dia 7
-trell
-nocgop
-nointerlaced
-gopsize 12
-maxbframes 2
-aspectratio 4:3
-buffer 224
-dynamic
-rc_var 1
-auto
-close

(minimum bitrate of 512 was set in the GUI)


QuEnc Command Line Options:

-i ep1.avs
-o ep1.mpg
-b 2148
-maxbitrate 8000
-dc 10
-priority 5
-2
-mpeg2
-hq
-vbr
-scene
-nocgop
-nointerlaced
-extreme
-gopsize 12
-maxbframes 2
-qlb
-aspectratio 4:3
-mpeg2mux dvd
-audiocodec ac3
-audiobitrate 160
-auto
-close

the issue doesn't appear to be a problem with over shooting the 9800kbps limit, as some of the QuEnc files jump to over 9550kbps (above the upper limit I set in NuEnc)

additionally, dropping to an extreme low bitrate doesn't seem to be the source of the problem either, as the QuEnc encodes drop below 250 kbps at some points.

for some reason i have a feeling the problem has its roots in the use of dynamic b-frames, but i have absolutely no idea why i think that... must be some sort of intuition or something. I havent had the time to play around with encoding video without dynamic b frames tho.
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Old 9th December 2004, 00:52   #205  |  Link
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yes i would suggest trying with scene detection and dynamic B frames turned off and see if it still happens.
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Old 9th December 2004, 01:11   #206  |  Link
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ill give it a go with no dynamic b frames, but scene detection on in QuEnc was ok....
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Old 9th December 2004, 01:47   #207  |  Link
Peter Cheat
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Quote:
Originally posted by spase
ill give it a go with no dynamic b frames, but scene detection on in QuEnc was ok....
You could also try only 2 passes in NuEnc. There is the possibility that I've overlooked something when implementing >2 passes that doesn't make the stream 100% compliant. I just checked through the code and it seems fine, and its been tested on my standalone, but this doesn't mean I haven't bungled up something.
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Old 9th December 2004, 06:06   #208  |  Link
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Quote:
but scene detection on in QuEnc was ok
from memory Peter changed scene detection sensativity(thats right isnt it Peter ?) so that may also be a factor which is why i said you may want to try disabling that aswell.
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Old 10th December 2004, 04:44   #209  |  Link
Peter Cheat
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It will only throw in more I frames, it shouldn't bugger anything else up.

@spase
What is the source frame rate?, and is the source interlaced?
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Old 10th December 2004, 22:53   #210  |  Link
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source is 25 fps and is not interlaced.

i am going to play around with this stuff when i get a little more time. finals week is here at the university of maryland, and i will be writing some papers on dogen's zen essays (shobogenzo) and even more other things, so once im done with that i am thinking of doing several test encodes with NuEnc with some opeions enabled/disabled etc.

will report back soon.
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Old 11th December 2004, 22:01   #211  |  Link
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@PeterCheat

Hello! I just wanna know if youve got a forecast for NueEnc new release. I like of this encoder very much and Im anxious to try it with new improvements and features.

Keep up on work!

TIA,
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Old 9th January 2005, 08:20   #212  |  Link
Peter Cheat
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Well, I am without a PC atm, my Athlon blew up, and I have to wait for a replacement, *hopefully* in the next couple of days. That's what the salesman told me anyway, and before that he told me he'd have the parts in last week .
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Old 9th January 2005, 16:50   #213  |  Link
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@Peter Cheat

I already knew about your PC issue (you talked about that at kvcd.net ...) and I hope so that you get to assemble your new machine ASAP. Anyway, Im playing with NuEnc 0.21 (test release)that you gave to me and Im getting very, very good results at low bitrate encodings (1 CD target-XSVCD - Im getting do it for a DVD movie action source, 104 minutes long, with a good CQ - yep, Im doing OPV with NuEnc ), but that you alredy knowing (because of our talks at kvcd.net forum )

Keep up on work!

Kudos,
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Old 18th January 2005, 09:06   #214  |  Link
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@Peter Cheat

Is ther i chans that you can send ore have a link fore the test release of nuenc 0.21. I cant whait fore the next realise of nuenc, in my opinion the best encoder att low bittrate encoding, and I have tested manny encoders.
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Old 18th January 2005, 13:09   #215  |  Link
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I've borrowed a PC for now, I'll update asap (tomorrow).
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Old 21st January 2005, 18:35   #216  |  Link
reboot
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What's with all the busted download links?
1b doesn't work at all.
mencode and mirror only give partial/corrupt .rar's/doesn't work.
I think if you want people to use this, you should find some hosting that's reliable, and someone to post a link that stays working.
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Old 21st January 2005, 18:54   #217  |  Link
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There's an alternative mirror here:
http://www.petersplace.000k2.com/projects/
(Peter Cheat should probably add it to his sig like he did for kvcd.net...... )

If you still have problems, try using a download manager like GetRight etc
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Old 24th January 2005, 18:10   #218  |  Link
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@Peter:
Hi Peter,

Hope you get up and running at full pelt soon. Let me know when you have your latest libavcodec changes up on your website, as I want to start integrating a bit of your ratecontrol...as I think ratecontrol is now the biggest issue with QuEnc (now I've got "most" of the bugs out of it )

Cheers,
-Nic
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Old 2nd February 2005, 17:45   #219  |  Link
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Quote:
Originally posted by Nic
@Peter:
Hi Peter,

Hope you get up and running at full pelt soon. Let me know when you have your latest libavcodec changes up on your website, as I want to start integrating a bit of your ratecontrol...as I think ratecontrol is now the biggest issue with QuEnc (now I've got "most" of the bugs out of it )

Cheers,
-Nic
any news on this?
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Old 3rd February 2005, 03:20   #220  |  Link
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someone is better off asking on the kvcd forum. previous comments in this very thread suggest thats where Peter is posting all his latest news etc.
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