[PD-dev] Pd timing on Android

[Hans-Christoph Steiner]

Right now, the code is kind of in two places.  Currently we are  
working from this mercurial repo:

http://code.google.com/p/pdportable/

But the rjdj files and pd files are here:

https://pure-data.svn.sourceforge.net/svnroot/pure-data/branches/by-author/eighthave/pd-mobile-0.43

.hc

On May 13, 2010, at 8:31 PM, chrism wrote:

> Hi Hans,
>
> Is this using the audio driver that interfaces with the JRE calls  
> which
> fill the hardware buffers via Java? If so, one thing to double-check  
> is
> whether those buffers are actually being filled only when they are  
> empty,
> not just constantly filled even when they don't need to be. Is there
> somewhere I can look at the code?
>
> Chris.
>
> On Thu, 13 May 2010 14:40:12 -0400, Hans-Christoph Steiner <hans at at.or.at 
> >
> wrote:
>> Sounds like that's the problem.  [metro 1000] to [realtime] is  
>> giving me
>> 150-200ms.  This is with -nosound.  Any ideas where to look?
>>
>> .hc
>>
>> Miller Puckette wrote:
>>> Hi Hans -
>>>
>>> if it even misbehaves with -nosound most likely the OS isn't waking
>>> Pd up reliably.  A test would be to try the "realtime" object to  
>>> see if
>>> Pd is getting the time correctly from Android -- relevant for the
>>> -nosound
>>> case.  If so I can't see why Pd wouldn't run "on time" unless it  
>>> simply
>>> bogs the CPU down (uses 600% of CPU time).
>>>
>>> cheers
>>> Miller
>>>
>>> On Sun, May 09, 2010 at 01:21:39PM -0400, Hans-Christoph Steiner  
>>> wrote:
>>>> So I have Pd running on Android, and am currently testing the  
>>>> timing.
> I
>>>> made a simple [metro 1000]--[print] and I seem to be getting 3-6  
>>>> bangs
>>>> per second.  The audio API stuff isn't entirely worked out, and I  
>>>> seem
>>>> to recall some relation between the audio I/O and timing.
>>>>
>>>> Any ideas why the timing might be so off?  I've tried with both - 
>>>> noadc
>>>> and -nosound as well, and got more or less the same result.
>>>>
>>>> .hc
>>>>
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