[MPlayer-dev-eng] Nut, few ideas

[Michael Niedermayer]

Hi

On Tuesday 20 April 2004 22:12, D Richard Felker III wrote:
> On Tue, Apr 20, 2004 at 06:44:05PM +0200, Michael Niedermayer wrote:
> > Hi
> >
> > On Tuesday 20 April 2004 15:55, Ivan Kalvachev wrote:
> > > ok
> > >
> > > So, we get some flaming each other.
> > > Here is summary of my proposals about nut format.
> > > (not yet finished)
> > >
> > > In summary.
> > > making main header startcode in human readable format.
> >
> > the 64bit startcodes starts with 'N', x, where x is a human readable
> > letter, if u and rich prefer we can change all startcodes to start with
> > 'N','U','T',x allthough this would mean that there are just 32 random
> > bits left which would weaken the error resistance somewhat, IMHO we
> > should leave the current codes the 264bit (no typo) startcode u propose
> > is a completely unacceptable mess
>
> Ivan didn't mean changing all the start codes! That would be very bad.
> Instead just have a human-readable _global_ header to begin the file,
> so if you type "less foo" and foo is a nut file, you see so
> immediately.
ok, i missunderstood that, ill add it to the spec

>
> > anyway, i would like to suggest that every proposed change must at
> > absolute minimum
> > 1. fullfill a goal (like improving error resistance, simplify, reduce
> > overhead, whatever)
> > 2. this goal must be clearly written down
> > 3. not significantly worsen overhead, error resistance or simplicity
> > 4. (optionally) spec& implementation patch + filesize/error resistance
> > statistics
>
> Agree mostly, but most of the proposed changes are tradeoffs between
> overhead, simplicity, and error resilience. We can't just say we're
> not going to significantly worsen any of them...we need to decide
> which tradeoffs are acceptable.
yes, what i meant with "not significantly worsen" was that a change which 
would double the overhead is bad no matter how much it improves the other 
parts

[...]
-- 
Michael
level[i]= get_vlc(); i+=get_vlc();		(violates patent EP0266049)
median(mv[y-1][x], mv[y][x-1], mv[y+1][x+1]);	(violates patent #5,905,535)
buf[i]= qp - buf[i-1];				(violates patent #?)
for more examples, see http://mplayerhq.hu/~michael/patent.html
stop it, see http://petition.eurolinux.org & http://petition.ffii.org/eubsa/en