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PO(Edit: iOS Simulator 5.x bug) EXC_BAD_ACCESS when using AudioQueue for sound playback in iOS
 

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  1. PO(Edit: iOS Simulator 5.x bug) EXC_BAD_ACCESS when using AudioQueue for sound playback in iOS
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    <p>[Edit: It is a confirmed iOS Simulator bug. Appeared in 5.0 and remains in 5.1. See link below in my own answer]. </p> <p>I guys. This is my first question. I'm really lost...</p> <p>I'm getting some troubles using AudioQueue to play a sound in iOS. I'm getting a EXC_BAD_ACCESS when I create a AudioQueue using AudioQueueNewOutput. It appears to happen in some audio thread (Xcode shows Thread 4).</p> <p>The AudioQueue is created like this:</p> <pre><code>AudioQueueNewOutput(&amp;desc, audioQueueCallback, this, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode, 0, &amp;audioQueue); </code></pre> <p>(desc contains the iOS canonical playback format).</p> <p>This is what the editor shows:</p> <pre><code>AudioToolbox`PowerMeter::PowerMeter(): 0x16ee92: pushl %ebp 0x16ee93: movl %esp, %ebp 0x16ee95: movl 8(%ebp), %eax 0x16ee98: movb $0, (%eax) 0x16ee9b: movl $0, 8(%eax) 0x16eea2: movl $0, 4(%eax) 0x16eea9: movl $1064866676, 24(%eax) 0x16eeb0: movl $3161095930, 20(%eax) 0x16eeb7: movl $1066426957, 40(%eax) 0x16eebe: movl $3539053052, 36(%eax) 0x16eec5: movl $0, 92(%eax) 0x16eecc: movl $0, 88(%eax) 0x16eed3: movl $0, 108(%eax) 0x16eeda: movl $0, 104(%eax) 0x16eee1: movl $0, 100(%eax) 0x16eee8: movl $0, 96(%eax) 0x16eeef: pxor %xmm0, %xmm0 0x16eef3: movaps %xmm0, 64(%eax) 0x16eef7: movl $0, 60(%eax) 0x16eefe: movl $0, 56(%eax) 0x16ef05: movb $0, 52(%eax) 0x16ef09: movb $0, 53(%eax) 0x16ef0d: movl $0, 48(%eax) 0x16ef14: movl $0, 80(%eax) 0x16ef1b: movl $4294967295, 44(%eax) 0x16ef22: movl $0, 84(%eax) 0x16ef29: popl %ebp 0x16ef2a: ret 0x16ef2b: nop 0x16ef2c: nop 0x16ef2d: nop 0x16ef2e: nop 0x16ef2f: nop </code></pre> <p>Xcode 4.3.1</p> <p>iOS Simulator 5.1</p> <p>Mac OS X Lion 10.7.3</p> <p>I really appreciate your help. Any thoughts?</p>
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