bool tcam::save_image (CaptureDevice& g, const std::string& filename)
{
struct data
{
CaptureDevice* g;
std::string filename;
int count;
bool wait;
};
auto f = [] (MemoryBuffer* buf, void* userdata)
{
data* d = static_cast<data*>(userdata);
if (d->count >= 2)
{
//save_jpeg(*buf, d->filename);
d->wait = false;
}
else
{
d->count++;
}
};
auto sink = std::make_shared<ImageSink>();
data d;
d.g = &g;
d.filename = filename;
d.count = 0;
d.wait = true;
sink->registerCallback(f, &d);
VideoFormat v;
v.from_string("format=RGB24,width=640,height=480,binning=0,framerate=30.000000");
g.set_video_format(v);
g.start_stream(sink);
// wait until image was captured
while(d.wait)
{
usleep(500);
}
d.g->stop_stream();
std::cout << "Successfully saved image" << std::endl;
return true;
}
bool set_active_format (std::shared_ptr<CaptureDevice> dev, const std::string& new_format)
{
VideoFormat v;
bool ret = v.from_string(new_format);
if (ret)
{
return dev->set_video_format(v);
}
else
{
std::cout << "Invalid string description!" << std::endl;
}
return false;
}