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iPhone kAudioUnitSubType_RemoteIO what does AudioStreamBasicDescription.mFormatFlags = 3116 mean?
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iPhone kAudioUnitSubType_RemoteIO what does AudioStreamBasicDescription.mFormatFlags = 3116 mean?


  • Subject: iPhone kAudioUnitSubType_RemoteIO what does AudioStreamBasicDescription.mFormatFlags = 3116 mean?
  • From: "Andrew E. Davidson" <email@hidden>
  • Date: Mon, 19 Jan 2009 15:14:34 -0800

Does anyone know of any easy way to decompose mFormatFlags into their components

 

The kAudioUnitSubType_RemoteIO on the iPhone returns mFormatFlags = 3116? What does this mean? (this is the value displayed in the debugger)

 

If my math is correct

3116 = bit wise & of 2048, 1024, 32, 8, 4 (in decimal)

 

Going through the documentation I found

 

kAudioFormatFlagIsSignedInteger = (1 << 2) // 0x4

kAudioFormatFlagIsPacked        =  ( 1 <<3) // 0x8

kAudioFormatFlagIsNonInterleved = (1 << 5) // 0x20

 

any idea what 1024 and 2048 are?

 

Is there a utility function that will print out these values in human readable forms?

 

Thanks

 

Andy

 


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