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Old 17th September 2008, 13:25   #21  |  Link
Sharktooth
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that was ages ago. the fast p-skip was then tweaked by the x264 devs coz there was that blocking issue. after the tweak, the blocking is almost non existent and --no-fast-pskip is pretty useless unless you're using insane options.
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Old 17th September 2008, 15:44   #22  |  Link
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Originally Posted by Sharktooth View Post
nope. one picture or one source arent a good test.
I plan on doing a test with the 1080p Blu-ray of 30 Days of Night (quite grainy, dark, etc.) once we narrow down the possibilities with this This source is IMO as ideal as a single source can be, but still only 1 source.

And again, I don't think people are noticing, you can download the encoded videos, I put links in the first post. These frames were just examples.
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Old 17th September 2008, 15:59   #23  |  Link
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Originally Posted by Ranguvar View Post

And again, I don't think people are noticing, you can download the encoded videos, I put links in the first post. These frames were just examples.
...File does not exist!
Ok, nvm works now

Last edited by jethro; 17th September 2008 at 16:08.
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Old 17th September 2008, 19:46   #24  |  Link
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Quote:
Originally Posted by Sharktooth View Post
nope. one picture or one source arent a good test.
yep it's very useless this way motion results and their speed/quality/complexity/size have to be taken into account to imho
very nice you can see what --no-fast-pskip does in a extreme low bitrate situation you gonna see that it creates a complete different look in such situations though for high bitrate you wont realize any difference you can either chose between more detail though also more motion artifacts or less detail no artifacts then
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Old 17th September 2008, 20:59   #25  |  Link
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Did a test with the short ~lossless Gears clip I made: here
Why do you play@1280x768(?!?!?!) instead of 1280x720 (16:9) or 1280x800 (16:10). Does your monitor/TV have 1.6666666 aspect ratio???

Last edited by Atak_Snajpera; 17th September 2008 at 21:05.
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Old 17th September 2008, 21:40   #26  |  Link
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Yep, it does.
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Old 17th September 2008, 21:42   #27  |  Link
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Samsung R20 notebook for example have this resolution.
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Old 18th September 2008, 03:00   #28  |  Link
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Okay, lots of new --psy-rd values. Please cast your vote starting now, and reasons! (just post)
I highly advise downloading the actual encoded videos and taking a look, as one frame can only do so much.

Once I have some top values, I'll do a test with 1080p grainy Blu-ray footage.


My vote now goes to 1.15:0.7.

EDIT: Actually, while 1.3:0.5 has more edge crap and slight smoke banding, it does far better on the back wall IMO... check the shadows, compare those two against the source. 1.3:0.5 preserves the original shapes better.

Last edited by Ranguvar; 18th September 2008 at 03:15.
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Old 18th September 2008, 03:11   #29  |  Link
Sharktooth
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agreed, 1.15:0.7 or 1.0:1.0
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Old 18th September 2008, 08:51   #30  |  Link
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1.15:0.7 while looks sharper have more ringing and chroma artiafacts that 1.0:1.0. Maybe impression of sharpness is from ringing noise.
Edit: 1.15:0.7 actually saves more details, but I don't like that ringing.

Last edited by Quark.Fusion; 18th September 2008 at 08:55.
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Old 18th September 2008, 11:03   #31  |  Link
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Keep in mind, as Sharktooth said in IRC, this is an uber-clean source. A little banding here will probably be killed in a source with any amount of grain/noise. But thanks for the vote
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Old 18th September 2008, 11:31   #32  |  Link
audyovydeo
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Quick question : are these two settings equivalent ?

--psy-rd 0
--psy-rd 0.0:0.0

ie : how is one sure to disable it (apart from setting -m < 6 ?)

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Old 18th September 2008, 13:40   #33  |  Link
kemuri-_9
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Quote:
Originally Posted by audyovydeo View Post
--psy-rd 0
--psy-rd 0.0:0.0
yes those are effective equivalents in disabling psy-rd and psy-trellis
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Last edited by kemuri-_9; 18th September 2008 at 15:54. Reason: remove WRONG information
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Old 18th September 2008, 14:50   #34  |  Link
J_Darnley
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Originally Posted by kemuri-_9 View Post
yes those are effective equivalents in disabling psy-rd and psy-trellis

--psy-rd x.y corresponds to --psy-rd x.y:x.y
that is both psy-rd and psy-trellis are set to the one value you give.
No, --psy-rd x is eqivalent to --psy-rd x:0

Code:
    OPT("psy-rd")
    {
        if( 2 == sscanf( value, "%f:%f", &p->analyse.f_psy_rd, &p->analyse.f_psy_trellis ) ||
            2 == sscanf( value, "%f,%f", &p->analyse.f_psy_rd, &p->analyse.f_psy_trellis ) )
        { }
        else if( sscanf( value, "%f", &p->analyse.f_psy_rd ) )
        {
            p->analyse.f_psy_trellis = 0;
        }
        else
        {
            p->analyse.f_psy_rd = 0;
            p->analyse.f_psy_trellis = 0;
        }
    }
Which means: if reading x:y or x,y is successful, use x and y and then do nothing; otherwise if reading x is successful, use x and set y to zero; otherwise if nothing can be read, set x and y both to zero.

But to answer audyovydeo's question, yes --psy-rd 0 is eqivalent to --psy-rd 0:0
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Old 18th September 2008, 15:27   #35  |  Link
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ah, sorry my mistake then.
i didn't think of it being changed when it submitted to git. as that was the behavior when it was a patch.
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Old 18th September 2008, 15:48   #36  |  Link
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Ah, so it was. I had forgotten that already.
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