Re: siCompressionParams Question
Re: siCompressionParams Question
- Subject: Re: siCompressionParams Question
- From: Jeff Moore <email@hidden>
- Date: Tue, 18 Apr 2006 14:10:56 -0700
First off, you _really_ should be using the AudioConverter API in
<AudioToolbox/AudioConverter.h> to do this work. The Sound Manager is
deprecated and it is not recommended that folks write new code using it.
That said, my guess is that the reason you are having an issue is
that you are setting the convert up incorrectly. If you insist on
using the Sound Converter, you might want to check out some of the
sample code in the QT SDK, one bit of which can be found here: http://
developer.apple.com/samplecode/soundconverter/soundconverter.html
On Apr 18, 2006, at 7:01 AM, Raman Sharma wrote:
I am trying to decompress audio and compress it back. Everything goes
haywire when I call the following sequence of functions :-
err = SoundConverterGetInfo(sc, siCompressionParams, &destCompParams);
if (err == noErr)
err = SoundConverterSetInfo(sc, siCompressionParams,
*destCompParams);
After calling the functions above when I call :-
err = SoundConverterGetInfo(sc, siCompressionFactor, &destCompInfo);
the value of destCompInfo.bytesPerPacket is zero.
Interestingly this happens only in case of the codecs which have
custom data. Because in other cases the function SoundConverterSetInfo
above is not called and everything works fine. Anyone knows what could
be going wrong ?
--
Jeff Moore
Core Audio
Apple
_______________________________________________
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