[PD-dev] Pd timing on Android

[Hans-Christoph Steiner]

pdportable.  I haven't gotten the rjdj code running myself (in the svn  
branch), and the whole source to the rjdj Android test binary was  
never released AFAIK.  I am guessing based on bug reports from rjdj  
that the rjdj version had the same or similar timing issue.  I recall  
something about delay lines not working.

.hc

On May 13, 2010, at 10:23 PM, chrism wrote:

> Hi Hans,
>
> Cool, thanks. Which one contains the build which you are referring  
> to with
> the too-fast timing issues?
>
> Chris.
>
> On Thu, 13 May 2010 21:18:31 -0400, Hans-Christoph Steiner <hans at at.or.at 
> >
> wrote:
>> 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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