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POTrying to run CamShift using threads
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copied!<p>I wrote code that creates 2 threads (I'm using glib). The first thread runs a function called <code>Camera</code> that just starts capturing from the camera, and shows the captured frames on the screen. The second function is the algorithm <code>CamShift</code> that uses the captured image from the first function to start running. I made the first function to capture from the camera because later I will add more algorithms like <code>CamShift</code> that will access the captures from the first function. </p> <p>My problem is that I want these 2 functions to continue running until I tell them to stop. But I'm new using threads and the way I wrote the code it compiles fine and runs the 2 functions, but they just "pause" immediately after they start. Below is the code of my 2 functions.</p> <pre><code>//**********Sensa iluminacion (hilo)****************************************** GThread *idGHilo,*idGHilo1, *idGHilo2, *idGHilo3, *idGHilo4; GError **error = NULL; char *valorDevuelto = NULL;/* Valor que va a devolver el thread hijo */ if(!g_thread_supported()) // se inicializa el sistema de hilos (se emplea cuando se g_thread_init( NULL ); // emplean más de un hilo idGHilo1 = g_thread_create( (GThreadFunc) Camara, NULL, TRUE, error );//esto lo cambie ayer 23 /* Comprobamos el error al arrancar el thread */ if(error) { g_print( "Error: %s\n", error[0]->message ); g_error_free( error[0] ); //exit (-1); } sleep( 10 ); // se da un retardo para dar tiempo a que termine el hilo idGHilo2 = g_thread_create( (GThreadFunc) CamShift2, NULL, FALSE, error ); if(error) { g_print( "Error: %s\n", error[0]->message ); g_error_free( error[0] ); //exit (-1); } sleep( 10 ); //10...5 g_thread_join( idGHilo1 ); g_thread_join( idGHilo2 ); //**************************** // This is the camera function void Camara() { capture = cvCaptureFromCAM( 0 ); while( stop != 's' ) { // get a frame frame = cvQueryFrame( capture ); // always check if( !frame ) break; // 'fix' frame cvFlip( frame, frame, 2 ); frame->origin = 0; cvNamedWindow( "Camara", CV_WINDOW_AUTOSIZE ); cvShowImage( "Camara", frame ); // quit if user press 'q' stop = cvWaitKey( 10 ); } } </code></pre> <p>The other function is the regular <code>CamShift</code> algorithm that comes with OpenCV. I just modified it to use the captured frames from the <code>Camera</code> function. That works fine, but the problem is, like I said before, the 2 functions start and then just pause.</p>

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