Date: Thu, 21 Oct 1999 03:36:33 +0200 (CEST) From: Marc van Woerkom <van.woerkom@netcologne.de> To: hasty@rah.star-gate.com Cc: van.woerkom@netcologne.de, conrads@home.com, aa8vb@ipass.net, freebsd-multimedia@FreeBSD.ORG Subject: Re: flashplugin Message-ID: <199910210136.DAA00492@oranje.my.domain> In-Reply-To: <199910210042.RAA14742@rah.star-gate.com> (message from Amancio Hasty on Wed, 20 Oct 1999 17:42:56 -0700) References: <199910210042.RAA14742@rah.star-gate.com>
index | next in thread | previous in thread | raw e-mail
> We have to provide or get someone to develop a high
> speed Java JMF and then we are all set.
What does JMF stand for?
> Real has a java version of their player and Apple's QuickTime also has a
> version of their player in java.
While I don't understand why they do it (Java is slow as a dog and decoding
RA or QT is CPU intensive), this is very interesting, because it is amazing
what Java decompilers can reconstruct from Java byte code.
Even if it is obfuscated, it should be possible to dig out the interesting
parts and turn it into compilable C++ code.
This interview has some interesting views about formats like ac3 and
DVD
http://www.moviebone.com/articles/1999/10/lsdvd.html
I wonder if Real would change the format, if such an open codec would
be built. They seem to be peculiar about non real clients connecting.
> The key is to provide high speed yuv->rgb and
http://www.robo.mein.nagoya-u.ac.jp/~niimi/color-space/COL_28.htm#topic27
Are you talking about these transformations?
R = 3.063*X - 1.393*Y - 0.476*Z
G =-0.969*X + 1.876*Y + 0.042*Z
B = 0.068*X - 0.229*Y + 1.069*Z
R'= Y' + 0.000*U' + 1.140*V'
G'= Y' - 0.396*U' - 0.581*V'
B'= Y' + 2.029*U' + 0.000*V'
These look like ordinary linear equations.
One could do it even in fixed point arithmetic.
> I am trying to work with XFree86's XVideo group as the starting point.
Saw you roaming there. :)
Regards,
Marc
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-multimedia" in the body of the message
home |
help
Want to link to this message? Use this
URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199910210136.DAA00492>