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POCrash while integrating Brad Larson's GPUImage
 

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  1. POCrash while integrating Brad Larson's GPUImage
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    <p>Im trying to integrate <a href="https://github.com/BradLarson/GPUImage" rel="nofollow">Brad Larson's GPUImage framework</a> to my project. The sample code works fine. After I've intergrated, it builds fine but Im facing crash while running it. It crashes at <code>AVCaptureVideoDataOutputSampleBufferDelegate</code> method,</p> <p><code>- (void)captureOutput:(AVCaptureOutput *)captureOutput didOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer fromConnection:(AVCaptureConnection *)connection;</code></p> <p>Particularly at <code>runOnMainQueueWithoutDeadlocking</code> block. I tried to find out the crash area but couldn't find it even after some few hours of time on seeing the crash log too. I didnt get any idea about the crash. Below is the crash log of Im getting on it. Can some one point me out the issue in it? I also have a doubt that, can I use to continue the queue in name <code>com.sunsetlakesoftware.GPUImage.processingQueue</code>?</p> <pre><code>Date/Time: 2012-06-19 17:46:28.449 +0530 OS Version: iPhone OS 5.1.1 (9B206) Report Version: 104 Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0xb00566c0 Crashed Thread: 0 Thread 0 name: Dispatch queue: com.apple.main-thread Thread 0 Crashed: 0 libobjc.A.dylib 0x344faf78 objc_msgSend + 16 1 GPUTest 0x0017d16a __74-[GPUImageVideoCamera captureOutput:didOutputSampleBuffer:fromConnection:]_block_invoke_0118 (GPUImageVideoCamera.m:415) 2 libdispatch.dylib 0x35b03b24 _dispatch_barrier_sync_f_slow_invoke + 72 3 libdispatch.dylib 0x35b02e8a _dispatch_main_queue_callback_4CF$VARIANT$up + 190 4 CoreFoundation 0x3247d2a6 __CFRunLoopRun + 1262 5 CoreFoundation 0x3240049e CFRunLoopRunSpecific + 294 6 CoreFoundation 0x32400366 CFRunLoopRunInMode + 98 7 GraphicsServices 0x31557432 GSEventRunModal + 130 8 UIKit 0x31effcce UIApplicationMain + 1074 9 GPUTest 0x000b0714 main (main.m:10) 10 GPUTest 0x000b06cc start + 32 Thread 1 name: Dispatch queue: com.sunsetlakesoftware.GPUImage.processingQueue Thread 1: 0 libsystem_kernel.dylib 0x35b4b054 semaphore_wait_trap + 8 1 libdispatch.dylib 0x35b0447e _dispatch_thread_semaphore_wait$VARIANT$up + 6 2 libdispatch.dylib 0x35b0265e _dispatch_barrier_sync_f_slow + 82 3 libdispatch.dylib 0x35b025dc dispatch_barrier_sync_f$VARIANT$up + 16 4 libdispatch.dylib 0x35b02238 dispatch_sync_f$VARIANT$up + 12 5 libdispatch.dylib 0x35b028ee _dispatch_sync_slow + 46 6 libdispatch.dylib 0x35b028ae dispatch_sync$VARIANT$up + 18 7 GPUTest 0x00172796 runOnMainQueueWithoutDeadlocking (GPUImageOutput.m:13) 8 GPUTest 0x0017d0a6 -[GPUImageVideoCamera captureOutput:didOutputSampleBuffer:fromConnection:] (GPUImageVideoCamera.m:414) 9 AVFoundation 0x32dd0244 __74-[AVCaptureVideoDataOutput _AVCaptureVideoDataOutput_VideoDataBecameReady]_block_invoke_0 + 220 10 libdispatch.dylib 0x35af7c52 _dispatch_call_block_and_release + 6 11 libdispatch.dylib 0x35b02ca4 _dispatch_queue_drain + 268 12 libdispatch.dylib 0x35b02b12 _dispatch_queue_invoke$VARIANT$up + 30 13 libdispatch.dylib 0x35b03784 _dispatch_worker_thread2 + 208 14 libsystem_c.dylib 0x30d40df4 _pthread_wqthread + 288 15 libsystem_c.dylib 0x30d40cc8 start_wqthread + 0 Thread 2: 0 libsystem_kernel.dylib 0x35b5bcd4 __workq_kernreturn + 8 1 libsystem_c.dylib 0x30d40f36 _pthread_wqthread + 610 2 libsystem_c.dylib 0x30d40cc8 start_wqthread + 0 Thread 3 name: Dispatch queue: com.apple.libdispatch-manager Thread 3: 0 libsystem_kernel.dylib 0x35b4b3a8 kevent + 24 1 libdispatch.dylib 0x35b03ea4 _dispatch_mgr_invoke + 708 2 libdispatch.dylib 0x35b03bc2 _dispatch_mgr_thread + 30 Thread 4: 0 libsystem_kernel.dylib 0x35b5bcd4 __workq_kernreturn + 8 1 libsystem_c.dylib 0x30d40f36 _pthread_wqthread + 610 2 libsystem_c.dylib 0x30d40cc8 start_wqthread + 0 Thread 5: 0 libsystem_kernel.dylib 0x35b5bcd4 __workq_kernreturn + 8 1 libsystem_c.dylib 0x30d40f36 _pthread_wqthread + 610 2 libsystem_c.dylib 0x30d40cc8 start_wqthread + 0 Thread 6 name: WebThread Thread 6: 0 libsystem_kernel.dylib 0x35b4b004 mach_msg_trap + 20 1 libsystem_kernel.dylib 0x35b4b1fa mach_msg + 50 2 CoreFoundation 0x3247e3ec __CFRunLoopServiceMachPort + 120 3 CoreFoundation 0x3247d124 __CFRunLoopRun + 876 4 CoreFoundation 0x3240049e CFRunLoopRunSpecific + 294 5 CoreFoundation 0x32400366 CFRunLoopRunInMode + 98 6 WebCore 0x35c1dc9c _ZL12RunWebThreadPv + 396 7 libsystem_c.dylib 0x30d4672e _pthread_start + 314 8 libsystem_c.dylib 0x30d465e8 thread_start + 0 Thread 7 name: com.apple.coremedia.player.async Thread 7: 0 libsystem_kernel.dylib 0x35b5b068 __psynch_cvwait + 24 1 libsystem_c.dylib 0x30d46a46 _pthread_cond_wait + 634 2 libsystem_c.dylib 0x30d467c2 pthread_cond_wait + 34 3 CoreMedia 0x32ec3868 FigSemaphoreWaitRelative + 268 4 MediaToolbox 0x309fb3e6 fpa_AsyncMovieControlThread + 22 5 CoreMedia 0x32ee28b4 figThreadMain + 168 6 libsystem_c.dylib 0x30d4672e _pthread_start + 314 7 libsystem_c.dylib 0x30d465e8 thread_start + 0 Thread 0 crashed with ARM Thread State: r0: 0x00541c20 r1: 0x00190b4f r2: 0x0056f240 r3: 0x00190b4f r4: 0xb00566b8 r5: 0x00000000 r6: 0x00000000 r7: 0x2feace34 r8: 0x2feace4c r9: 0x000642d3 r10: 0x2feace4c r11: 0x3e47dde0 ip: 0x3f3c22c8 sp: 0x2feace24 lr: 0x0017d171 pc: 0x344faf78 cpsr: 0x20000030 </code></pre>
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