[linux-audio-dev] What does it mean for jack to be "rolling" (newby)

[Jonathan Ryshpan]

On Mon, 2007-02-19 at 13:18 -0800, vreuzon wrote:
> Jonathan Ryshpan a écrit :
> > The above recording session was done while jack was "Stopped".  Would
> > jack work better if it were "Rolling"?
> 
> This "play" button refers to jack "transport" functions :
> 
> > The JACK Audio Connection Kit provides simple transport interfaces 
> > for starting, stopping and repositioning a set of clients. This 
> > document describes the overall design of these interfaces, their 
> > detailed specifications are in <jack/transport.h>
> 
> from : 
> http://jackit.sourceforge.net/docs/reference/html/transport-design.html

Thanks for your quick reply.  However...

I have read this, and also part of the documentation of the transport.h
File Reference to which it refers.  Rolling is not defined anywhere;
it's just used.

If the original design document has been followed "rolling" would appear
to mean that the clients are passing control among themselves by means
of calls and callbacks.  However if this is the case, I don't see how
audacity could work as a jack client unless jack is "rolling".  But it
does work.  So what does "rolling" mean?

jon