QuEnc
From doom9 forum, a mpeg encoder based on ffmpeg by Nic:
http://forum.doom9.org/showthread.php?s=&threadid=72827 Quote:
|
Agrrr :evil:
You've outrun me by "turning computer on, and finding this on doom9" time :mrgreen: Did you made some test :?: I will do some late evening today. |
If it uses internal FFMPEG library, then we already know what the results will be ;)
-kwag |
Quote:
|
Thanks GFR :)
I heard, and went running over to doom9 for more info. I like it when new toys are discovered. Make things all the more interesting sometimes. I am pretty busy with other matter at home, and try and find the time to play :lol: Cheers everyone, -vhelp |
Hi everybody!
I briefly tried QuEnc 0.2 with 352x288 PAL source at 700 kbps target. It's pretty good for an early version (but not good enough for me for the moment). It uses a GOP size of 12, with IBBPBB... pattern. The good: -Is incredibly fast (comparing to ffvfw, I still haven't tried mencoder, I'm scared of what I see in that other thread, I believe I have to spend an entire week-end to begin to understand what is going on there :oops: ). I get about 50-55 fps with trellis and 60-75 without. -I'm under the impression that the bitrate fluctuates much less than with ffvfw (the peaks are lower). -The GUI is neat. The bad: -The GUI is too neat, it lets out very few options for the user. I hope this will change. -The medium quantization is much higher than with ffvfw for the same source and the q line jumps like hell in BV. This gives easy noticiable quality fluctuation with the GOP. With 2 pass encoding (pretty useable since is very fast anyway) this jumpy q line is a little smoother but the quality is still badly fluctuating. I hope things could change if we could have acces to more advanced options. So for the the moment I stick with ffvfw (as it is in heavy developement, as I can see). But who knows... I'll wait for future versions anyway. marcellus |
@All,
Well, Nic has really done it now :) I just tested his latest version of QueEnc ( 0.45 ), and the results are just excelent. He has included KVCD's Notch matrix as an option. Here's the latest version: http://nic.dnsalias.com/QuEnc.exe Here's my sample with this version: http://www.kvcd.net/quenc-test.m2v -kwag |
Great! :D :D :D :D :D :D :D
Now I know what will be the encoder for DIKO... AVS support, full command-line, GOP and KVCD matrix... How could I ask for more? I'll put QuEnc integration for DIKO this is high priority "To-do" list! Thanks Nic for the great work. :) |
Quote:
Full command line? I did a test on a capture and the mencoder-by-hand way resulted in a better quantisation quality :? :) |
i didn't try doing quality tests yet. But mencoder can't accept AVS input in a automated way.
|
There is still some "timing" problems I've found. If you encode with open GOP, when playing back, the movie skips and jumps all over the place.
I'm currently testing with closed GOP, and so far, seems to work correctly. There's a problem with the encoder when creating short GOPs. Looking at the GOP with an analyzer, I can clearly see the short structure messed up. Look: Code:
GOP # TimeCode GOP Length Structure Closed? Seq. Header? There are no P frames. So a decoder will some times see IBBIBB other times IBBP or IBBIBBPIBBPIBBIBBIBB so the decoder will "think" to expect IBBP, when in reality, it will receive IBBIBB some of the times. This is throwing off the decoder's sync. So for the time being, closing the GOP seems to fix this, because the GOP is larger. -kwag |
@vmesquita,
The good thing about this GUI/Encoder combo, is that we can forget about file size prediction :) I already encoded Red Planet, targetting 1,332,485KB, and the final encode size was 1,365,477KB. So this is really sweet :D -kwag |
Yes, I encoded a clip from Shrek and it looks amazing! Only one problem, when I burned the clip and watched it on my stand alone DVD it looked almost interlaced?! Any ideas why? BTW I encoded the clip with open GOP. Will try another clip with closed GOP...
|
Quote:
I've only tested on progressive matereial, and then I run PULLDOWN.EXE on the .m2v, and then multiplex with audio. Looks great on the standalone DVD player. :) -kwag |
No, it was the NTSC version of the movie. So, maybe I should try running pulldown on this sucker to make it work?
EDIT: BTW where can I download this program :?: |
Quote:
-kwag |
i only did tests changing to the KVCD notch matrix and 16:9,nothing more
i need to learn how to do/use command lines for QuENC! who can help me? some samples and hints are welcome! :wink: @ all: hey, come back here..... :P |
Where can I find this program :?: (PullDown.exe)
|
Quote:
Edit: Remember this is a command line utility :!: |
Thanks. I found this - a GUI version called DoPulldown here:
http://www.doom9.org/Soft21/SupportU...wn.1.0.0.0.zip Is it the same program exept for the GUI? |
Site design, images and content © 2002-2024 The Digital FAQ, www.digitalFAQ.com
Forum Software by vBulletin · Copyright © 2024 Jelsoft Enterprises Ltd.