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Wed Jul 23 13:50:48 EDT 2003

royalty free and likely so for other similar solutions that are now poping
up. Again, open source does not mean royalty free (FYI, MPEG is open
source).
People have been working in the area of video coding for decades. So, unless
one wants to use state-of-the-art compression technology of 1982 for his
products, he will have to deal with patents.
Kind regards,
Olivier
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<TITLE>RE: [M4IF Discuss] On2 and IPR</TITLE>
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<P><FONT SIZE=3D2>Dear Ian, all,</FONT>
</P>
<P><FONT SIZE=3D2>> I had a look at the source code for On2's VP3 =
codec : at a </FONT>
<BR><FONT SIZE=3D2>> first glance</FONT>
<BR><FONT SIZE=3D2>> it seems to be similar to MP4 Simple Profile, =
i.e. based on DCT with</FONT>
<BR><FONT SIZE=3D2>> half-pixel motion estimation, 4 MVs per =
macroblock, etc. Given that we</FONT>
<BR><FONT SIZE=3D2>> are told that Simple Profile is covered by the =
MP4 patent </FONT>
<BR><FONT SIZE=3D2>> pool, I would</FONT>
<BR><FONT SIZE=3D2>> think that the VP3 may also be open to patent =
claims. Any comments ?</FONT>
</P>
<P><FONT SIZE=3D2>Well, if this is true, it is not a surprise that On2 =
and other open source video coding evangelists have become so quiet all =
the sudden :-)</FONT></P>
<P><FONT SIZE=3D2>From what you say, it is indeed very likely that the =
On2 codecs is not royalty free and likely so for other similar =
solutions that are now poping up. Again, open source does not mean =
royalty free (FYI, MPEG is open source).</FONT></P>
<P><FONT SIZE=3D2>People have been working in the area of video coding =
for decades. So, unless one wants to use state-of-the-art compression =
technology of 1982 for his products, he will have to deal with =
patents.</FONT></P>
<P><FONT SIZE=3D2>Kind regards,</FONT>
</P>
<P><FONT SIZE=3D2>Olivier</FONT>
</P>
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