[FFmpeg-devel] lavfi noise generator

[Stefano Sabatini]

On date Monday 2008-12-29 13:45:23 +0100, Michael Niedermayer encoded:
> On Mon, Dec 29, 2008 at 11:39:30AM +0100, Stefano Sabatini wrote:
> > On date Monday 2008-12-29 00:52:18 +0100, Michael Niedermayer encoded:
> > > On Mon, Dec 29, 2008 at 12:25:02AM +0100, Stefano Sabatini wrote:
> > > > Hi all,
> > > > 
> > > > no Michael I'm not posting it for you or others to review it, I'm just
> > > 
> > > no but i reject it anyway
> > > your code is crap, sorry
> > > 
> > > People didnt want to port libmpcodecs when i suggested it, i dont mind
> > > this at all, libmpcodecs has its serious issues but this does not mean i
> > > will accept code that is inferrior than it.
> > > 
> > > vf_noise.c should be MUCH faster than your code.
> [...]
> > As for the speed concerns, I see two major issues to be addressed, the
> > use of the av_random() for setting every single byte, ideally we
> > should set the whole buffer for example reading from /dev/urandom but
> > this would not be portable, and the av_picture_copy() can be avoided
> > using properly the permissions system and passing a picture reference.
> 
> did you read vf_noise.c ?

What about a noise module in libavutil (based on your vf_noise.c)?

For example it may be shared between a noise source and filter, also I
think those routines may be useful also in other places.

Regards.
-- 
FFmpeg = Foolish Furious Mysterious Puristic Evil Guru