[linux-audio-dev] XAP: a polemic

[Paul Davis]

>> >this is the best suggestion so far. i love callbacks. note that
>> >"meter" includes both tempo and time signature. you knew that,
>> > though. i can't see anyone wanting to use TIME_TICKS.
>> >
>> >--p
>>
>> Callbacks do make sense here, I agree.
>
>I disagree. Callbacks are not sample accurate.

i was assuming that the callback would be executed so that it was
passed the audio frame at which the change occurs.

>Either way, the only callback I see in that proposal is the host one 
>to "register" for these events... Did I miss something?

my definition of callback:

   register_callback (function_to_be_called_when, when_to_call_it);

the name "callback" is based on a style of telephone interaction:

no callbacks:
     
     Paul: hi David, is audiality is available?
     David: its not.

with callbacks:

     Paul: hi David, please call me back at +1 610-667-4807 
	      when audiality is available.

   [ ... time passes ... ]
   [ ... david calls ... ]  

     David: its available. 

or alternatively:

     David: it will be available in 5 minutes.

--p