• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
Re: AUVarispeed strangeness
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: AUVarispeed strangeness


  • Subject: Re: AUVarispeed strangeness
  • From: William Stewart <email@hidden>
  • Date: Wed, 2 Apr 2008 11:10:51 -0700


On Apr 2, 2008, at 9:02 AM, Kevin Dixon wrote:

You can't do that while you have a callback on the input. So, you need
to set the format first, then establish the callback.

Thanks for the tip-off

Offline render units have a slightly different semantic - including a
notion of preflighting them.

AUVarispeed reports that no preflighting is required. Is it possible that
this would change in the future?

sure - the API contract for an offline unit is that it should be preflighted unless it tells you it doesn't. I would check, rather than hard code this.




In the auprocess example (in AudioFileTools) there's an au wrapper
(CAAUProcessor which is in Public Utility) object that is used to
handle this - its has all the code to render with effects, converters
or offline units, so its more complicated than to deal with just one
type of audio unit, but you should be able to sort it out from that I
think.

Would you recommend using the CAAUProcessor in new software that does just
that?

Sure - it does alot of the stuff you need it to do (deals with latency and tail with effects so you get the right number of samples out for the input) and the general offline semantics. The code's there too, so if its not quite what you need for some reason, its easy to change


Bill



Thanks,

-Kevin

_______________________________________________ Do not post admin requests to the list. They will be ignored. Coreaudio-api mailing list (email@hidden) Help/Unsubscribe/Update your Subscription: This email sent to email@hidden
References: 
 >AUVarispeed strangeness (From: "Kevin Dixon" <email@hidden>)
 >Re: AUVarispeed strangeness (From: William Stewart <email@hidden>)
 >Re: AUVarispeed strangeness (From: "Kevin Dixon" <email@hidden>)

  • Prev by Date: Re: Adding code for handling notes to an AU - Logic setup question
  • Next by Date: Re: HAL user-land audio driver
  • Previous by thread: Re: AUVarispeed strangeness
  • Next by thread: Using parameter listeners
  • Index(es):
    • Date
    • Thread