[MPlayer-users] Volume Control Suggestion

[Attila Kinali]

On Tue, 1 Jan 2002 00:51:35 -0500 (EST)
Hui Zhang <huiz at gradient.cis.upenn.edu> wrote:

> I am thinking of doing something more than that.  I'd like to see two or
> more programs with sound that are playing at the same time can adjust
> their respective volume in dependent of one another.  That is the approach
> of the windows media player 6 and above, also the new quicktime player.
> the realplay doesn't do that and it doesn't do what you suggest either,
> which I find extremely annoying.

Have you ever heard of esd, arts and all the other sound daemons ?
(iirc there are 4 or 5 of them) They do exactly this and even more.
Most of them are designed to be network transparent.


> 	for(i=0; i< len; buf[i] *= 0.5, i++);
> 
> I expect it to decrease the volume by half.  It doesn't seem to work.  Any
> ideas?  You can tell I've never worked with this before.

Yes, you have a sound format look into libao2/afmt.h.
You have to support at least the S8, U8, S16_* and U16_* to get something
usefull. And also take care that you have more than one channel.


		Attila Kinali


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