static int
k4w2_v4l2_stop(k4w2_t ctx)
{
k4w2_v4l2 * v4l2 = (k4w2_v4l2 *)ctx;
CHANNEL ch;
if (0== v4l2->thread)
return K4W2_ERROR;
v4l2->shutdown = 1;
THREAD_JOIN(v4l2->thread);
v4l2->thread = 0;
for (ch = ctx->begin; ch <= ctx->end; ++ch) {
stop_camera(&v4l2->cam[ch]);
}
return K4W2_SUCCESS;
}
void VideoInput::run()
{
_init = false;
_stop = false;
bool success = start_camera();
_init = true;
if (!success)
{
return;
}
int error = 0;
int max_error = 10;
int warmup = 10000;
QTime timer;
timer.start();
while(_video_capture && !_stop && error<max_error)
{
IplImage * frame = cvQueryFrame(_video_capture);
if (frame)
{ //ok
error = 0;
emit new_image(cv::Mat(frame));
}
else
{ //error
if (timer.elapsed()>warmup) {error++;}
}
}
//clean up
stop_camera();
QApplication::processEvents();
}
VideoInput::~VideoInput()
{
stop_camera();
}
VideoInput::~VideoInput()
{
stop_camera(true);
}
VideoToGet::~VideoToGet()
{
stop_camera();
}