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Rép : Problems implementing kAudioDevicePropertyIOProcStreamUsage property in a user-land CoreAudio device (2)
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Rép : Problems implementing kAudioDevicePropertyIOProcStreamUsage property in a user-land CoreAudio device (2)


  • Subject: Rép : Problems implementing kAudioDevicePropertyIOProcStreamUsage property in a user-land CoreAudio device (2)
  • From: Stéphane Letz <email@hidden>
  • Date: Fri, 24 Oct 2008 11:25:27 +0200

So I found out the application (iMovie HD version 6.0.3) that was causing some problems:

- If I set mData be set to NULL *and* mDataByteSize to 0 for a disabled stream then iTunes does not work

- if I set mData be set to NULL only and not changing mDataByteSize then iMovie is crashing.

It appears that mData has to be set to NULL *only* (not changing mDataByteSize) for streams where the IOProcStreamUsage property is actually used, otherwise (IOProcStreamUsage not used) then the mData has to be set to NULL *and* mDataByteSize set to 0.

Does this makes sense?

Thanks

Stephane Letz
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