Re: AUAudioFilePlayer- problems with formats
Re: AUAudioFilePlayer- problems with formats
- Subject: Re: AUAudioFilePlayer- problems with formats
- From: Doug Wyatt <email@hidden>
- Date: Tue, 27 Jun 2006 17:13:59 -0700
On Jun 27, 2006, at 16:47 , Karim Morsy wrote:
Hi,
I'm using the file player au in my app and I've experienced some
problems with certain file formats.
When I try to play these files with any of the common audio
applications it works fine.
so I was wondering why none of these them can be opened/played with
the fileplayer (or afinfo, afplay etc.) and if there's a work around.
(by the way..is there a list of all formats supported (or not
supported) by the fileplayer somewhere... I couldn't find it in the
docs.)
Any file format that can be read by the AudioFile API, if it contains
a data format that can be decoded (if not PCM) by AudioConverter.
Trying building afconvert (from AudioFileTools) in the CA examples
and running it without arguments -- it will list the supported file
and data formats.
trying to open/play any of these files fails:
-protected AAC audio file (from the iTunes Music Store)
-> Error: open audio file ('typ?')
Decoding protected AAC requires QuickTime -- playing a file on an
unauthorized computer can lead to a dialog prompting you to go the
iTunes store and authorize your machine as I just was reminded...
-some mpeg-1, layer-3, 192 kbps, 44,1 khz, stereo files
-> Error: open audio file ('dta?')
-m4a files on intel core duo's
-> loading works, but resetting the fileplayer is not possible,
even caused AU lab crash (I've filed a bug report about this a
while ago)
The 10.4.7 update was just released today -- do these problems
persist on 10.4.7?
Doug
--
Doug Wyatt
Core Audio, Apple
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