YV12: mpeg2dec, mpeg2dec2 and mpeg3dec developers

[sh0dan]

@Rrrough: ok

/me looks up from, and relaxes a bit to see that there are no angry Xvid-devel's after me.

[[Toff]]

@sh0dan

RGB support in 2.5alpha (avisynth_a_011102.zip) seems broken.
Here is a test clip (650ko) :
http://christophe.paris.free.fr/temp...VS25_RGB24.avi

And the avs script:
AVISource("bug_AVS25_RGB24.avi")
ConvertToRGB24()

[MaTTeR]

Originally posted by sh0dan
I'll try it out to see if I can reproduce!

Well after hours of trying to get it working I finally managed to do so by cropping in multiples of 8 instead of 4. Of course I also I had to use a MOD-4 resolution. It seems to be working great and very stable.

At 640 resolution I was encoding at 63FPS, I'd say that's a nice speed boost; not to mention the colors staying slightly cleaner. Thx anyways shOdan!

[sh0dan]

Originally posted by [Toff]

AVISource("bug_AVS25_RGB24.avi")
ConvertToRGB24()

ConverttoRGB doesn't support YV12 (as stated on the alpha page).
Use

AVISource("bug_AVS25_RGB24.avi")
ConvertToYUY2()
ConvertToRGB24()

[sh0dan]

Originally posted by MaTTeR
Well after hours of trying to get it working I finally managed to do so by cropping in multiples of 8 instead of 4. Of course I also I had to use a MOD-4 resolution. It seems to be working great and very stable.

@MarcFD: Are you using AlignPlanar in Mpeg2dec3?

Edit: It seems more like an unintentional "feature" in the horzontal resizer.
Edit2: Which leads back to a bug, where avisynth.h not returned aligned row-widths.

[sh0dan]

New version. Fixing mod 4/8 problems. Complete changelist:

* Resizer now works with MOD4 resolutions.
* MergeLuma/MergeChroma now supports YV12
* Fixed bug in YV12 greyscale.
* Fixed general bug on resolutions that are not mod16.
* NewVideoFrame() now throws an error, if a filter attempts to create an YV12 image that isn't mod4.
* Separatefields() should now split chroma correctly (according to the YV12 spec.)
* Mod4 checks in Resize, crop, addborders.

Enjoy

Bug? - I get some chroma noise on the last line when resizing vertically.
Edit: There seems to be stability issues with this release. I'll test further, but beware!
Edit3: Hopefully fixed it.

New feature:

* Added Limiter(clip,min_luma, max_luma, min_chroma, max_chroma) (inspired by Sansgrip)

[MaTTeR]

Thx for the confirmation sh0dan. New build changelist looks great!

Edit- I just wanted to confirm with you that TemporalSoften still isn't YV12 supported. Correct?

[Marc FD]

>Are you using AlignPlanar in Mpeg2dec3?

no. the internal buffers are all 128-bit aligned, but i just added a very simple memcpy from these buffers in each plane.

[sh0dan]

@Matter: Correct. It hasn't been implemented yet. I hope dividee will get back to assist us.

@MarcFD: OK. If you use NewVideoFrame that isn't a problem. Just wanted to make sure

[Koepi]

XviD-03112002-1:
- Fresh CVS checkout. GMC decoding support added.
- New mod. HQ quant type reimplemented.
- Added checkboxes for qpel/gmc for better control.

Well, now even YV12 support is "official", maybe you like this build more.

Regards,
Koepi

[iago]

@shOdan,

Any ideas and/or hope about the "green-line-at-the-bottom-edge" problem?

@Tom,

Sorry for asking this one more time but any plans on making a YV12 release of UnFilter? (I got addicted and can't live without it! )


Best regards and many thanks again to everyone putting effort on this great work.

iago

[MaTTeR]

Originally posted by iago
@shOdan,

Any ideas and/or hope about the "green-line-at-the-bottom-edge" problem?

I noticed it on my encodes today also.

MOD-8 resolutions does seem to work now with the new AVS build from shOdan and I haven't experiences any instabilities yet.

[trbarry]

Sorry for asking this one more time but any plans on making a YV12 release of UnFilter? (I got addicted and can't live without it! )

iago -

Yep, Unfilter should be an easy port. But my YV12 plans for the moment are:

- UnDot (fast deringing dot remover), new and simple, mostly done

- TomsMoComp, about half done

- SimpleResize, harder, but I want it

- UnFilter, not hard, but not first

- MPEG2DEC2 HDTV support, others?

As I posted elsewhere, I'm actually having more trouble with YUY2 in the 2.5 alpha.

- Tom

[ookzDVD]

@forum,
Can someone please post an example of your working .avs script
(complete) for this YV12 ?
How many percent improvement use the YV12 over the "regular" one ?

@sh0dan,
Is all the build resize filter : Bilinear, Bicubic, Lanczos support
the YV12 ?

Thank you.

[MaTTeR]

Originally posted by trbarry
UnDot (fast deringing dot remover), new and simple, mostly done

Tom,
That's great news, glad to hear your working on them already. When you say "dot remover", are you speaking about the so called "mosquito noise" we see on DVD sources? I know your mostly into HDTV so maybe I'm off base here.

[Koepi]

@Ookz,

please read the whole thread, all the 50 posts (you'll see which posts you can jump over as they're more-or-less chit-chat).

E.g. I posted a nice working script some pages ago, some other people as well. It's all already there. Even the answer to your question that all resizers are.... well. Now go back to start, and READ for yourself.

Thanks for your attention

Koepi

[sh0dan]

Originally posted by iago
Any ideas and/or hope about the "green-line-at-the-bottom-edge" problem?

It should be gone in the latest (04-11) build - at least on my machine.

[Gaia]

Originally posted by sh0dan
It should be gone in the latest (04-11) build - at least on my machine.

Sorry sh0dan but the green line is still sadly there Tried your latest build...

[Rrrough]

@iago & gaia,

I haven't come across the green line problem yet, could you please post your AVS-scripts ? wanna try to reproduce it.

cheers

[Gaia]

Here's my very simple test script:

LoadPlugin("C:\OHJELM~1\GORDIA~1\mpeg2dec3 YV12.dll")
mpeg2source("C:\THREE_KINGS\3kings.d2v",cpu=0)
crop(0,74,720,428)
BicubicResize(640,264)

It's there but sometimes it's bit hard to see. Turn all the lights off. I also noticed that there's somenthing in the left border.