[Ffmpeg-devel] BlackFin lowlevel pixel operations PATCH

[Marc Hoffman]

Michael Niedermayer writes:
 > Hi
 > 
 > On Tue, Mar 27, 2007 at 09:38:53PM -0400, Marc Hoffman wrote:
 > > Michael Niedermayer writes:
 > >  > Hi
 > >  > 
 > >  > On Tue, Mar 27, 2007 at 07:52:35AM -0400, Marc Hoffman wrote:
 > >  > > Diego Biurrun writes:
 > >  > >  > On Tue, Mar 27, 2007 at 07:11:33AM -0400, Marc Hoffman wrote:
 > >  > >  > > Diego Biurrun writes:
 > >  > >  > >  > On Mon, Mar 26, 2007 at 10:00:39PM -0400, Marc Hoffman wrote:
 > >  > >  > >  > Content-Description: message body text
 > >  > >  > >  > > 
 > >  > >  > >  > > This is the a set of video optimization for the Blackfin processor it
 > >  > >  > >  > > includes most of the low level pixel operations.
 > >  > >  > > 
 > >  > >  > > Is this the right one version 2 changes to 2.1 and a couple of other
 > >  > >  > > words.  Good catch, just double check this one.
 > >  > >  > > 
 > >  > >  > 
 > >  > >  > Yes, this one is correct.
 > >  > >  > 
 > >  > >  > Diego
 > >  > > 
 > >  > > Changes made.
 > >  > 
 > >  > tabs are forbidden in svn and please provide dct-test.c output fo the new idct
 > >  > 
 > >  > also function names starting with _ are reserved
 > >  > 
 > >  > asm not reviewed as i dont know blackfin asm
 > >  > 
 > >  > [...]
 > >  > -- 
 > > 
 > > I kind of have to kludge up the dct-test mechanism can we agree on the
 > > appropriate mechanism for changes to the dct-test?
 > > 
 > > oh by the way you help me find an error of 10 in the idct, I have a
 > > modified routine which now passes correctly. I guess that would mean I
 > > owe you a beer or two + an awesome story that will make you laugh your
 > > head off if we ever actually meet. So the idct codes have changed to
 > > meet spec.
 > [...]
 > > Now I'm thinking that we might want to build something a little more configurable for this dct test
 > > 
 > > struct {	 
 > >        dct1,
 > >        dct2,
 > > blah blah
 > >   
 > > } dctsf
 > > 
 > > #ifdef MMX
 > > 
 > > blah table of dct functions
 > > 
 > > #elif ALTIVEC
 > > 
 > > blah
 > > 
 > > #else BFIN
 > > 
 > > blah
 > > 
 > > #endif
 > > 
 > > then call each one via indirection but otherwise here would be a stab
 > > at the changes: Not sure who would do such a task I could do it if you
 > > want to make it easier for others to test their backends.
 > 
 > iam fine with someone cleaning dct-test.c up ...

Michael I will put a proposal together with the initial code of the
idea probably in the beginning of next week.

How is this patch shaping up?

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