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2014/10/15 ¤U¤È 10:12:53
iphone Programming Glossary: printerrormessageHow to record sound produced by mixer unit output (iOS Core Audio & Audio Graph) http://stackoverflow.com/questions/7118429/how-to-record-sound-produced-by-mixer-unit-output-ios-core-audio-audio-graph kAudioOutputUnitProperty_EnableIO kAudioUnitScope_Output 0 Output bus flag sizeof flag if noErr result self printErrorMessage @ AudioUnitSetProperty EnableIO withStatus result return can't do that because AudioUnitSetProperty EnableIO error 1073752493.. kAudioOutputUnitProperty_EnableIO kAudioUnitScope_Input 0 Output bus flag sizeof flag if noErr result self printErrorMessage @ AudioUnitSetProperty EnableIO withStatus result return Then create a stream format I O stream format iOStreamFormat.mSampleRate.. kAudioUnitScope_Output 1 Input bus iOStreamFormat sizeof iOStreamFormat if noErr result self printErrorMessage @ AudioUnitSetProperty StreamFormat withStatus result return result AudioUnitSetProperty iOUnit kAudioUnitProperty_StreamFormat..
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