package kaka.cakelight;
+import java.io.File;
import java.io.IOException;
import java.util.Optional;
+import java.util.function.Consumer;
-import static kaka.cakelight.Main.log;
-import static kaka.cakelight.Main.timeIt;
-
-public class VideoMode implements Mode {
+public class VideoMode extends Mode {
private Configuration config;
- private Thread thread;
+ private Thread grabberThread;
+ private Consumer<VideoFrame> frameConsumer;
+ private VideoDeviceListener deviceListener;
+
+ public VideoMode() {
+ deviceListener = new VideoDeviceListener();
+ deviceListener.onVideoDeviceChange(this::onVideoDeviceChange);
+ }
@Override
public void enter(Configuration config) {
this.config = config;
- startGrabberThread();
+ deviceListener.startListening();
}
@Override
public void exit() {
- thread.interrupt();
+ grabberThread.interrupt();
+ deviceListener.stopListening();
}
- private void startGrabberThread() {
- thread = new Thread() {
+ private void startGrabberThread(File videoDevice) {
+ assert frameConsumer != null;
+ grabberThread = new Thread() {
public void run() {
- try (FrameGrabber grabber = FrameGrabber.from(config)) {
+ try (FrameGrabber grabber = FrameGrabber.from(videoDevice, config)) {
while (!isInterrupted()) {
-// Optional<Frame> frame = grabber.grabFrame();
- timeIt("frame", grabber::grabFrame);
- // TODO: process frame
- // TODO: save where the LedController can access it
+ Optional<VideoFrame> frame = grabber.grabFrame();
+ if (frameConsumer != null) frame.ifPresent(frameConsumer);
+ frame.ifPresent(VideoMode.this::onVideoFrame);
+// timeIt("frame", grabber::grabFrame);
}
} catch (IOException e) {
e.printStackTrace();
}
}
};
- thread.start();
+ grabberThread.start();
+ }
+
+ public void onVideoFrame(Consumer<VideoFrame> consumer) {
+ frameConsumer = consumer;
+ }
+
+ private void onVideoFrame(VideoFrame frame) {
+ updateWithFrame(frame.getLedFrame());
+ }
+
+ public void onVideoDeviceChange(Optional<File> videoDevice) {
+ // Should only happen when this mode is active!
+ if (grabberThread != null) {
+ grabberThread.interrupt();
+ }
+ videoDevice.ifPresent(this::startGrabberThread);
}
}