[maemo-developers] gstreamer question

[From: Kwan Hong Lee]

Hi,

So I guess Adder is part of the solution.  Another question is how to go
about adding multiple mono streams and output a stereo stream with variable
contribution to left and right gain.  I see that audioop provides some
functions like that, but I can see to find out what gstreamer element can do
mono to stereo or stereo to mono and change gain values for left and right
channel.  Any pointers?

Finally, on the maemo platform, gstreamer supports ilbc.  Is there any way I
can mix ilbc streams?  It deosn't seems like adder supports this.  Any
insights on how to go about this?

Thank you!

-kwan

On Sat, Feb 23, 2008 at 4:03 PM, Stefan Kost <ensonic at hora-obscura.de>
wrote:

> Kwan Hong Lee schrieb:
> > Hi,
> >
> > I am trying to combine multiple streams of audio both from a file and
> > from the network and mix them and output them into single stream.
> > I see that there's tee and n-to-1 but not sure how to utilize them.  Any
> > examples that has details on how to handover buffers of data between
> > these components?
> There is no ready written code. Adder (mixing) is easy to use. Just link
> your
> n-soures to it. Regarding the data-flow - the components do that by them
> self.
> Please read gstreamer documentation and study the examples in the source
> tar-balls.
>
> Stefan
> >
> > Does anybody have any insights or guidance in how to manage this?  Also
> > has anybody tried doing ilbc decoding and getting a raw audio packets
> > out of it?
> >
> > Thank you!
> >
> > -kwan
> >
> > --
> > http://www.media.mit.edu/~kwan/info.html<http://www.media.mit.edu/%7Ekwan/info.html>
> >
> >
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> >
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>


-- 
http://www.media.mit.edu/~kwan/info.html
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