аварии с AVCapture на основе ViewController

Question

Я работаю над приложением, которое использует OpenGL VideoCapture внутри UIViewController

на первое инициализации этого контроллера я получаю это сообщение в консоли:

wait_fences: failed to receive reply: 10004003 

сообщение является отображается сразу после просмотраController init

После этого, если я переключусь на другой контроллер и снова запустите этот контроллер, произойдет сбой после запуска 2/4 ViewController с EXC_BAD_ACCESS

АНМ выход не помогает, что много

0x32f56a34: bne 0x32f56ad4    ; memmove$VARIANT$CortexA9 + 276 
0x32f56a38: subs r2, r2, #60 
0x32f56a3c: blo 0x32f56a84    ; memmove$VARIANT$CortexA9 + 196 
0x32f56a40: tst r0, #28 
0x32f56a44: beq 0x32f56a5c    ; memmove$VARIANT$CortexA9 + 156 
0x32f56a48: ldr r3, [r1], #4 
0x32f56a4c: subs r2, r2, #4 
0x32f56a50: str r3, [r0], #4 
0x32f56a54: bhs 0x32f56a40    ; memmove$VARIANT$CortexA9 + 128 
0x32f56a58: b  0x32f56a84    ; memmove$VARIANT$CortexA9 + 196 
0x32f56a5c: push {r5, r6, r8, r10} 
0x32f56a60: ldm r1!, {r3, r4, r5, r6, r8, r9, r10, r12} 
0x32f56a64: subs r2, r2, #64 

Некоторые relealant часть исходного кода здесь:

- (id)init 
{ 

    self = [super init]; 

    if (self) 
    { 

     ADLog(@"AR_ogl_ViewController init"); 

     animating = FALSE; 

     EAGLContext *aContext = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2]; 

     if (!aContext) 
     { 
      aContext = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES1]; 
     } 

     if (!aContext) 
     { 
      ADLog(@"Failed to create ES context"); 
     } 
     else if (![EAGLContext setCurrentContext:aContext]) 
     { 
      ADLog(@"Failed to set ES context current"); 
     } 

     self.context = aContext; 

     ADSafeRelease(aContext); 


     [(AR_EAGLView *)self.view setContext:context]; 
     [(AR_EAGLView *)self.view setFramebuffer]; 

     [self createVBO]; 

     if ([context API] == kEAGLRenderingAPIOpenGLES2) 
      [self loadShaders]; 

     animating    = FALSE; 
     displayLinkSupported = FALSE; 
     animationFrameInterval = 1; 
     displayLink    = nil; 
     animationTimer   = nil; 

     // Use of CADisplayLink requires iOS version 3.1 or greater. 
     // The NSTimer object is used as fallback when it isn't available. 
     /* NSString *reqSysVer = @"3.1"; 

     NSString *currSysVer = [[UIDevice currentDevice] systemVersion]; 

     if ([currSysVer compare:reqSysVer options:NSNumericSearch] != NSOrderedAscending)*/ 

     displayLinkSupported = TRUE; 

     // start capture 
     [self setupCaptureSession]; 

     // initialize 
     frameData = 0; 
     pTexData = (GLuint*)malloc(TEX_SIZE*TEX_SIZE*sizeof(GLuint)); 

     incrementNeedsVideoFrame(); 

     float x = 0.0f; 
     float y = 0.0f; 
     float z = 1.0f; 
     float angle = 90.0 * PI_OVER_180; 

     afIdentity[0] = 1+(1-cos(angle))*(x*x-1); 
     afIdentity[1] = -z*sin(angle)+(1-cos(angle))*x*y; 
     afIdentity[2] = y*sin(angle)+(1-cos(angle))*x*z; 
     afIdentity[3] = 0; 
     afIdentity[4] = z*sin(angle)+(1-cos(angle))*x*y; 
     afIdentity[5] = 1+(1-cos(angle))*(y*y-1); 
     afIdentity[6] = -x*sin(angle)+(1-cos(angle))*y*z; 
     afIdentity[7] = 0; 
     afIdentity[8] = -y*sin(angle)+(1-cos(angle))*x*z; 
     afIdentity[9] = x*sin(angle)+(1-cos(angle))*y*z; 
     afIdentity[10] = 1+(1-cos(angle))*(z*z-1); 
     afIdentity[11] = 0; 
     afIdentity[12] = 0; 
     afIdentity[13] = 0; 
     afIdentity[14] = 0; 
     afIdentity[15] = 1; 

     y = 1.0f; 
     z = 0.0f; 
     angle = 180.0 * PI_OVER_180; 

     afIdentity2[0] = 1+(1-cos(angle))*(x*x-1); 
     afIdentity2[1] = -z*sin(angle)+(1-cos(angle))*x*y; 
     afIdentity2[2] = y*sin(angle)+(1-cos(angle))*x*z; 
     afIdentity2[3] = 0; 
     afIdentity2[4] = z*sin(angle)+(1-cos(angle))*x*y; 
     afIdentity2[5] = 1+(1-cos(angle))*(y*y-1); 
     afIdentity2[6] = -x*sin(angle)+(1-cos(angle))*y*z; 
     afIdentity2[7] = 0; 
     afIdentity2[8] = -y*sin(angle)+(1-cos(angle))*x*z; 
     afIdentity2[9] = x*sin(angle)+(1-cos(angle))*y*z; 
     afIdentity2[10] = 1+(1-cos(angle))*(z*z-1); 
     afIdentity2[11] = 0; 
     afIdentity2[12] = 0; 
     afIdentity2[13] = 0; 
     afIdentity2[14] = 0; 
     afIdentity2[15] = 1; 

    } 

    ADLog(@"AR_ogl_ViewController init end"); 


    return self; 

} 

- (void)dealloc 
{ 
    ADLog(@"dealloc"); 
    ADSafeRelease(session); 

    //ADSafeRelease(input); 
    //ADSafeRelease(output); 

    if (program) 
    { 
     glDeleteProgram(program); 
     program = 0; 
    } 

     if (m_ui32Vbo) 
    { 
       glDeleteBuffers(1, &m_ui32Vbo); 
       m_ui32Vbo = 0; 
     } 

     if (frameData) 
    { 
       free(frameData); 
     frameData = nil; 
     } 

    if (pTexData) 
    { 
       free(pTexData); 
     pTexData = nil; 
     } 

    // Tear down context. 
    if ([EAGLContext currentContext] == context) 
     [EAGLContext setCurrentContext:nil]; 

    [context release]; 
    context = nil; 

    [super dealloc]; 

} 

- (void)viewDidAppear:(BOOL)animated 
{ 
    ADLog(@"viewDidAppear"); 
    [super viewDidAppear:animated]; 
    [self startAnimation]; 

} 

- (void)viewDidDisappear:(BOOL)animated 
{ 
    [super viewDidDisappear:animated]; 
    [self stopAnimation]; 

} 

- (void)viewDidUnload 
{ 
     [super viewDidUnload]; 

    if (program) 
    { 
     glDeleteProgram(program); 
     program = 0; 
    } 

    // Tear down context. 
    if ([EAGLContext currentContext] == context) 
     [EAGLContext setCurrentContext:nil]; 
     self.context = nil; 
} 



- (void)startAnimation 
{ 

    ADLog(@"startAnimation"); 

    if (displayLink) 
    { 
     [displayLink invalidate]; 
     displayLink = nil; 
    } 

    if (animating==FALSE && displayLink==nil) 
    { 
      ADLog(@"generating displayLink"); 
      displayLink = [NSClassFromString(@"CADisplayLink") displayLinkWithTarget:self selector:@selector(drawFrame)]; 
      [displayLink setFrameInterval:animationFrameInterval]; 
      [displayLink addToRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; 
      animating = TRUE; 

    } 

    ADLog(@"startAnimation end"); 

} 

- (void)stopAnimation 
{ 
    ADLog(@"stopAnimation"); 

    if (displayLink) 
    { 

     [displayLink invalidate]; 
     displayLink = nil; 

     animating = FALSE; 
    } 


} 


// Create and configure a capture session and start it running 
- (void)setupCaptureSession 
{ 
    NSError *error = nil; 

    // Create the session 
    session = [[AVCaptureSession alloc] init]; 

    // Configure the session to produce lower resolution video frames, if your 
    // processing algorithm can cope. We'll specify medium quality for the 
    // chosen device. 
     // Low : 192 x 144 
     // Medium: 480 x 320 
     // High : 1280 x 720 
    session.sessionPreset = AVCaptureSessionPresetMedium; 

    // Find a suitable AVCaptureDevice 
    AVCaptureDevice *device = [AVCaptureDevice 
                  defaultDeviceWithMediaType:AVMediaTypeVideo]; 

    // Create a device input with the device and add it to the session. 
    input = [AVCaptureDeviceInput deviceInputWithDevice:device error:&error]; 

    if (!input) 
    { 
     // Handling the error appropriately. 
    } 

    [session addInput:input]; 

    // Create a VideoDataOutput and add it to the session 
    output = [[AVCaptureVideoDataOutput alloc] init]; 

    [session addOutput:output]; 

    // Configure your output. 
    CaptureQueue = dispatch_queue_create("CaptureQueue", NULL); 
    [output setSampleBufferDelegate:self queue:CaptureQueue]; 
    dispatch_release(CaptureQueue); 

    // Specify the pixel format 
    output.videoSettings = 
     [NSDictionary dictionaryWithObject: 
     [NSNumber numberWithInt:kCVPixelFormatType_32BGRA] 
                   forKey:(id)kCVPixelBufferPixelFormatTypeKey]; 

     output.alwaysDiscardsLateVideoFrames = NO; 

    // If you wish to cap the frame rate to a known value, such as 15 fps, set 
    // minFrameDuration. 
    // [output setVideoMinFrameDuration:CMTimeMake(1, 20)]; 

    // Start the session running to start the flow of data 

    [session startRunning]; 

} 



@end 

Любые предложения для отслеживания этой аварии?

Answer 1

Вы слишком быстро настраиваете представление. Большая часть вышеуказанного кода должна быть в viewDidLoad и viewDidAppear:, а не init.

"wait_fences: failed to receive reply: 10004003"? Смотрите также