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<DIV dir=ltr align=left><SPAN class=635225312-22032007><FONT face=Arial
color=#0000ff size=2>Dirac is _just_ a video codec - there are no DRM components
in the system. </FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=635225312-22032007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=635225312-22032007><FONT face=Arial
color=#0000ff size=2>regards</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=635225312-22032007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=635225312-22032007><FONT face=Arial
color=#0000ff size=2>Thomas</FONT></SPAN></DIV><BR>
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<FONT face=Tahoma size=2><B>From:</B> Gareth Hay [mailto:gazhay@gmail.com]
<BR><B>Sent:</B> 22 March 2007 12:51<BR><B>To:</B> Thomas Davies<BR><B>Cc:</B>
whatwg@lists.whatwg.org<BR><B>Subject:</B> Re: [whatwg] <video> element
proposal<BR></FONT><BR></DIV>
<DIV></DIV>This is maybe off-topic to some degree.
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV>What are the DRM constraints of this format?</DIV>
<DIV>I only ask as your organisation is embarking on an MS-DRM fueled online
media project, and I am curious as to the position of this codec.</DIV>
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV>thanks</DIV>
<DIV><BR>
<DIV>
<DIV>On 22 Mar 2007, at 12:28, Thomas Davies wrote:</DIV><BR
class=Apple-interchange-newline>
<BLOCKQUOTE type="cite">
<P><FONT face=Arial size=2>Hi</FONT> </P>
<P><FONT face=Arial size=2>Having been pointed at this discussion by
Christian, I thought I'd let you know a bit more about where Dirac is as a
royalty-free open source codec. We're certainly very keen for Dirac to be
considered as one of the supported video formats.</FONT></P>
<P><FONT face=Arial size=2>Dirac has been in development for 4 years. In
compression terms it's about twice as efficient as MPEG2, competitive with
H264 and VC-1 and substantially more efficient than Theora. The Dirac
sourceforge site contains a full specification of the system which is very
nearly complete. A subset of this, relating to professional profiles for TV
production, has already been proposed to the SMPTE for standardisation as
VC-2. Assuming that there are no roadblocks in this process, we intend to
submit the rest of the Dirac system as VC-3 (or whatever number they're up
to) towards the end of the year. So this time next year, there is a good
chance that Dirac will be an international, royalty-free SMPTE
standard.</FONT></P>
<P><FONT face=Arial size=2>When we started Dirac, our intention was that the
Dirac software on the website could be developed to build a real-time
system. However, it proved difficult to make a system that could be a
reference codec for testing the specification/draft standard and which had
real-time optimisations. So in conjunction with Fluendo, we started the
Schrodinger project (</FONT><A href="http://schrodinger.sf.net"><U><FONT
face=Arial color=#0000ff
size=2>http://schrodinger.sf.net</FONT></U></A><FONT face=Arial size=2>)
which is a real-time, multi-platform implementation of Dirac being developed
in parallel with the Dirac software. This isn't quite finished yet, but we
will have a compliant alpha release in the next month or two. It will be
alpha because although it will do real-time encoding and decoding in
software, it won't compress all that well. The Dirac site software is being
maintained as a reference and demonstrator system. </FONT></P>
<P><FONT face=Arial size=2>Our aim then is to do a beta release of
Schrodinger by the autumn using all the encoder optimisations in Dirac, so
by the end of the year we should be "there" in terms of having a really
good, efficient real-time encoder and decoder. Third parties can start
designing implementations when the spec is finalised at version 1.0 in only
a couple of weeks from now. </FONT></P>
<P><FONT face=Arial size=2>We have been developing Dirac hardware as well.
Hardware for the professional applications will be on sale in a very few
weeks, and we're developing a prototype hardware HDTV encoder
too.</FONT></P><BR>
<P><FONT face=Arial size=2>Thomas </FONT></P><BR><FONT
face="Times New Roman" size=3><A
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