Re: ExtAudioFileSetProperty 'perm' error
Re: ExtAudioFileSetProperty 'perm' error
- Subject: Re: ExtAudioFileSetProperty 'perm' error
- From: Evan Olcott <email@hidden>
- Date: Sat, 17 Jan 2009 14:39:42 -0600
On Jan 17, 2009, at 2:34 PM, patrick machielse wrote:
Evan wrote:
Under what circumstances should I get a 'perm' error return from
calling ExtAudioFileSetProperty for the
kExtAudioFileProperty_ClientDataFormat property in iPhone OS 2.2?
The error is not documented anywhere, and I'm not sure where to begin
to place the blame.
Yes, tracing back fourchar error codes can be a bit of a pain. In
this case -- making a wild guess -- I would suspect a 'perm'ission
error; trying to modify a file for which you do not have write
permission. On the phone that would be any file outside of your
app's sandbox...
Nah, it's not that... I'm only opening a file for reading, I'm not
doing any writing (not that that is specifically set anywhere, but I'm
not *creating* or *modifying* a file in this case).
The audio file is in my app bundle and it's staying there, all I'm
trying to do is decode it to canonical format.
What's even more puzzling is that I get the error while trying to set
the *client data format* - the format that I want to read the file out
as, and I don't think that has any kind of "permissions" attached to
it...
Ev
Technical Knowledge Officer
Head Programmer/Designer
Audiofile Engineering
http://www.audiofile-engineering.com/
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