On 05/04/2010 03:07 PM, Louigi Verona wrote:
Hey Patrick!
Maybe I should once more make an attempt to contact the original
kluppe developer. Maybe he'll find some time to reply.
Fyi, if possible you should try not to top post on this list.
I doubt that contacting the original developer is the best way to solve
this issue. The main issue is how to write a threaded timer in c. The
original developer may not be experienced enough to know how to do this
effectively either.
It's possible someone on this list has a workable suggestion or even a
code example but it seems everyone is busy at the moment or not
interested in this topic.
Patrick Shirkey
Boost Hardware Ltd
Louigi.
On Thu, Apr 29, 2010 at 3:10 AM, Patrick Shirkey
<[email protected] <mailto:[email protected]>> wrote:
Hi,
Just in case anyone has had some time to ponder this problem and
has forgotten to respond or missed the original request for
assistance.
I would like to add a timer function to kluppe so that I can add a
timed delay to the playback start for an individual loop.
There are a couple of problems with the current implementation.
1: There is an annoying buzz when the loop is paused on three out
of four pause scenarios. This is probably related to the buffer
being trapped on pause for some reason.
2: With the current implementation using select(), the pause
affects all running loops.
I tried to work asynchronously with signal and alarm() but that
was suggested as the wrong method.
Now I am out of my depth as I am not sure how to create an
asynchronous timer in c that will apply to the kluppe system. For
example in some other languages there are timers and example code
already written for this problem which makes it a fairly simple
procedure to implement. Perhaps there is also something
fundamental with the kluppe code that makes this problem even more
difficult. If someone has a suggestion for the correct way to
handle this problem I am more than happy to code it up and learn
something new but I am aware that if I have to figure this one out
by myself it's gonna take some time.
The current test code is here:
http://djcj.org/code/kluppe-0.6.14-playbackdelay.tar.bz2
The core code can be found at src/common/looperdata.c:1342
To enable the timed playback pause you need to adjust the bottom
right spinbox in the spinbox grid panel for a specific loop.
Cheers.
Patrick Shirkey
Boost Hardware Ltd
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