Add CaptureStream class with close and isOpen methods

Author: doblon8

src/main/java/io/github/doblon8/openpnp/capture/CaptureStream.java

@@ -0,0 +1,37 @@
+package io.github.doblon8.openpnp.capture;
+
+import static io.github.doblon8.openpnp.capture.bindings.openpnp_capture.Cap_closeStream;
+import static io.github.doblon8.openpnp.capture.bindings.openpnp_capture.Cap_isOpenStream;
+
+public class CaptureStream {
+    private final CaptureContext context;
+    private final int id;
+
+    public CaptureStream(CaptureContext context, int id) {
+        this.context = context;
+        this.id = id;
+    }
+
+    /**
+     * Check if a stream is open, i.e. is capturing data.
+     *
+     * @return true if the stream is open, false otherwise.
+     */
+    public boolean isOpen() {
+        var result = Cap_isOpenStream(context.getSegment(), id);
+        return result == 1;
+    }
+
+    /**
+     * Close a capture stream.
+     *
+     * @throws CaptureException if an error occurs while closing the capture stream.
+     */
+    public void close() {
+        int result = Cap_closeStream(context.getSegment(), id);
+        CaptureResult captureResult = CaptureResult.values()[result];
+        if (captureResult != CaptureResult.OK) {
+            throw new CaptureException("Error closing capture stream: " + result);
+        }
+    }
+}