[MPlayer-dev-eng] Audio Filter Layer

[Attila Kinali]

On Thu, 28 Feb 2002 11:20:56 +0800
Anders Johansson <ajh at atri.curtin.edu.au> wrote:

> Hi,
> 
> > > Yes I have rescheduled so it will be ready Real Soon Now (TM), na just
> > > kidding I haven't started yet but it is easy to implement so it won't
> > > take long to finish it.
> > 
> > do you plan to read whole audio stream, find highest volume and then set up
> > software mixer? or you will dinamically set volume depending on avg/max
> > volume, similar to brightness control of postprocess filter?
> 
> I will make it adaptive, the way a commercial analog compressor/limiter 
> works, i.e. run the sound through a nonlinear filter that changes over
> time depending on the envelope of the data stream. 

I'd like also to have a fixed normalizer.
Maybe this should be implemented in a two pass system
ie something like this:
1) run mplayer -getnormalize to get the normalize factor
2) run mplayer -normalize <factor>

		Attila Kinali

-- 
I am a moslem, i am a terrorist.