Recent changes to feature-requests

x64 support?

Anonymous — Fri, 19 Sep 2008 20:42:30 -0000

Are there plans for x64 support? I looked over the prebuilt DirectShow filters and the source projects and there doesn't appear to be support currenty, but it doesn't look like there is much that would be an obstacle to implementing x64.

VAQ for Dirac ?

forart.eu — Thu, 24 Apr 2008 08:40:10 -0000

I don't know if it's applicable, but seems that Dark Shikari "ported" x264's new VAQ to Xvid.

http://forum.doom9.org/showthread.php?t=135093

Again I don't know if we need it, but an exchange could be productive, IMHO.

DWT on GPU

forart.eu — Thu, 06 Dec 2007 11:25:39 -0000

I just discovered this Chinese Univeristy of Hong Kong's researcher project:

http://www.cse.cuhk.edu.hk/~ttwong/software/dwtgpu/dwtgpu.html

"DWT shader that runs on existing GPU hardwares. We implement the convolutionary based DWT and propose an indirect addressing technique that supports various boundary extension schemes. The proposed technique also unifies the computation of both forward and inverse DWT, hence making the shaders for FDWT and IDWT are basically the same. This may simplify the future hardware implementation. The software has already been successfully integrated into the well-known JPEG2000 codec, JasPer."

They also claims:

To popularize the usage of DWT on GPU, we release both the full source code and binary. The software is released in two forms:
1) JasPer unofficial GPU extension (both source code and compiled binary),
2) Standalone DWT-GPU C++ Class (source code with example program).

Hope that helps !

Marco Radossevich

PSNR calculation for encoder

Thomas Davies — Mon, 20 Feb 2006 15:29:14 -0000

To output PSNR values for encoding. A quality value is
already present, based on weighted 4th powers.

stdin input

Archie Lopez — Thu, 25 Aug 2005 18:09:30 -0000

Considering that video is often only available in
formats other than YUV, and that creating an
intermediary YUV file is very cumbersome, what about
supporting stdin support? There are ways to play the
output without too much hassle, but input is a major
hassle, and there are tools to decode video to yuv and
write it to stdout so they could be connected with the
diracencoder.

Helixplayer support

Tobias Burnus — Thu, 26 May 2005 20:41:15 -0000

While it is nice that mplayer is supported, it would be
great if
Helixplayer/Realplayer could be supported as well.

Helixplayer is GNU and both are rather wide spread and
have a good comunity support.

Adding/maintaining the codec should be not too difficult.

See https://player.helixcommunity.org/
and https://bugs.helixcommunity.org/show_bug.cgi?id=2850

4:4:4 and 10 bit

Anonymous — Sat, 19 Feb 2005 22:42:18 -0000

I hope anybody have thought about supporting YUV
4:4:4 and 10 bit per color channel.
That would allow the use of Dirac inside professional
environments.
I'm tired of seeing the Open source community is giving
its back to anything higher than 8 bit per color channel...

More Pixel...

Anonymous — Tue, 11 May 2004 12:46:43 -0000

Please have a heart for the people with stereoscopic
applications. For stereoscopic applications we need
double horizontal pixel numbers, e.g. for a
stereoscopic 1024x768 video we need 2048x768 pixels, for a
1280x1024 video we need 2560x1024 pixels.

So we can use for our applications only very few
available codecs, e.g. 3ivx works and Ligos XP works,
but divx
doesn't work nor xvid. What the reason fot this silly
horizontal 1920 pixel limit ???

Gerhard
(post@herbig-3d.de)

MacOS X version?

Anonymous — Tue, 11 May 2004 03:54:51 -0000

Any chance anyone in the group would be able to tackle making
this a QuickTime codec for MacOS X?

Make it an addin to the videolan client.

Robert de Bath — Mon, 10 May 2004 15:35:08 -0000

http://www.videolan.org/

That way you get a media player, encapsulation and
network transfers on and between multiple OSs.