Audio queue starts failed err: hwiu 1752656245

    In my project, I use a AVPlayer to play local music and iPod Library music together with a AudioStreamer from Matt Gallagher (GitHub here).
        When running this app in iPhone 4s with iOS 5.1.1, it's all fine. While running in a 3GS with iOS 4.1, a failure comes "Audio queue starts failed err: hwiu 1752656245". I search the problem in Google, and find a note write by MATT CONEYBEARE (page here).
    It's because my AVPlayer is using the hardware so AudioStreamer fails.

    So, put the code after code following comment "// get the packet size if it is available":

// set the software codec too on the queue.

    UInt32 val = kAudioQueueHardwareCodecPolicy_PreferSoftware;

    OSStatus ignorableHardWareError = AudioQueueSetProperty(audioQueue, kAudioQueueProperty_HardwareCodecPolicy, &val, sizeOfUInt32);

    if (ignorableHardWareError)

    {

                  [self failWithErrorCode:AS_AUDIO_QUEUE_CREATION_FAILED]; 

        return;

    }

   And Problems solved.

   Thanks for Both Matt's work!

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