Re: [Mjpeg-developer] yuvdenoise vs y4mdenoise

[Steven M. S. <sms@2BSD.COM>]

On Fri, 19 Nov 2004, Scott T. Smith wrote:

> yeah but transcode also loads the mpeg2enc "filter", but mpeg2enc still
> shows up under ps....

	Is mpeg2enc called a "filter"?  That seems odd.  What I think is
	happening is that the export_mpeg2enc.so plugin is exec'ing the
	external program while the 'filter_yuvdenoise.so' is doing the
	processing itself.   That would, I think, explain why a separate
	denoise program doesn't show up in 'ps'.
	have a module in $prefix/transcode called 

> haha, you're missing my point -- denoise_frame_pass2 will benefit hugely
> from MMX.  Probably from Altivec too...

	Maybe.  But I think you missed my point that just because something
	is written using MMX does not mean it's faster.

> huh, dunno where that came from.  I'm just talking about processing more

	Came from talking about efficiency and speeding things up - that is
	(was) what was being discussed.  You mentioned "divide" which I meant
	as being used inside index calculations - complex subscripting inside
	a loop is a huge speed hit and using pointers greatly speeds up that
	type of access.

	Steven Schultz