1 files changed, 81 insertions, 0 deletions
diff --git a/tests/Camera2Tests/SmartCamera/SimpleCamera/src/androidx/media/filterfw/ValueTarget.java b/tests/Camera2Tests/SmartCamera/SimpleCamera/src/androidx/media/filterfw/ValueTarget.java
new file mode 100644
index 0000000..e2db8af
--- /dev/null
+++ b/tests/Camera2Tests/SmartCamera/SimpleCamera/src/androidx/media/filterfw/ValueTarget.java
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package androidx.media.filterpacks.base;
+
+import android.os.Handler;
+import android.os.Looper;
+
+import androidx.media.filterfw.*;
+
+public final class ValueTarget extends Filter {
+
+    public static interface ValueListener {
+        public void onReceivedValue(Object value);
+    }
+
+    private ValueListener mListener = null;
+    private Handler mHandler = null;
+
+    public ValueTarget(MffContext context, String name) {
+        super(context, name);
+    }
+
+    public void setListener(ValueListener listener, boolean onCallerThread) {
+        if (isRunning()) {
+            throw new IllegalStateException("Attempting to bind filter to callback while it is "
+                + "running!");
+        }
+        mListener = listener;
+        if (onCallerThread) {
+            if (Looper.myLooper() == null) {
+                throw new IllegalArgumentException("Attempting to set callback on thread which "
+                    + "has no looper!");
+            }
+            mHandler = new Handler();
+        }
+    }
+
+    @Override
+    public Signature getSignature() {
+        return new Signature()
+            .addInputPort("value", Signature.PORT_REQUIRED, FrameType.single())
+            .disallowOtherPorts();
+    }
+
+    @Override
+    protected void onProcess() {
+        FrameValue valueFrame = getConnectedInputPort("value").pullFrame().asFrameValue();
+        if (mListener != null) {
+            if (mHandler != null) {
+                postValueToUiThread(valueFrame.getValue());
+            } else {
+                mListener.onReceivedValue(valueFrame.getValue());
+            }
+        }
+    }
+
+    private void postValueToUiThread(final Object value) {
+        mHandler.post(new Runnable() {
+            @Override
+            public void run() {
+                mListener.onReceivedValue(value);
+            }
+        });
+    }
+
+}
+