1 files changed, 72 insertions, 0 deletions
diff --git a/tests/Camera2Tests/SmartCamera/SimpleCamera/src/androidx/media/filterfw/samples/simplecamera/AverageFilter.java b/tests/Camera2Tests/SmartCamera/SimpleCamera/src/androidx/media/filterfw/samples/simplecamera/AverageFilter.java
new file mode 100644
index 0000000..d873e0a
--- /dev/null
+++ b/tests/Camera2Tests/SmartCamera/SimpleCamera/src/androidx/media/filterfw/samples/simplecamera/AverageFilter.java
@@ -0,0 +1,72 @@
+/*
+ * Copyright 2013 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.
+ */
+// Takes sharpness scores in RT and averages them over time
+
+package androidx.media.filterfw.samples.simplecamera;
+
+import android.util.Log;
+import androidx.media.filterfw.Filter;
+import androidx.media.filterfw.FrameType;
+import androidx.media.filterfw.FrameValue;
+import androidx.media.filterfw.MffContext;
+import androidx.media.filterfw.OutputPort;
+import androidx.media.filterfw.Signature;
+
+public class AverageFilter extends Filter {
+
+    private static final String TAG = "AverageFilter";
+    private static boolean mLogVerbose = Log.isLoggable(TAG, Log.VERBOSE);
+
+    private static final int NUM_FRAMES = 5;
+    private int counter = 0;
+    private float[] temp = new float[NUM_FRAMES];
+
+    /**
+     * @param context
+     * @param name
+     */
+    public AverageFilter(MffContext context, String name) {
+        super(context, name);
+    }
+
+    @Override
+    public Signature getSignature() {
+        FrameType floatT = FrameType.single(float.class);
+        return new Signature()
+        .addInputPort("sharpness", Signature.PORT_REQUIRED, floatT)
+        .addOutputPort("avg", Signature.PORT_REQUIRED, floatT)
+        .disallowOtherPorts();
+    }
+
+    @Override
+    protected void onProcess() {
+        FrameValue inFrameValue = getConnectedInputPort("sharpness").pullFrame().asFrameValue();
+        if (counter < NUM_FRAMES && counter >= 0) {
+            temp[counter] = ((Float)inFrameValue.getValue()).floatValue();
+        }
+
+        counter = (counter + 1) % NUM_FRAMES;
+
+        float output = (temp[0] + temp[1] + temp[2] + temp[3] + temp[4]) / NUM_FRAMES;
+        if (mLogVerbose) Log.v(TAG, "Avg= " + output + "temp1= " + temp[0] + "temp2= " +
+                temp[1] + "temp3= " + temp[2] + "temp4=" + temp[3] + "temp5=" + temp[4]);
+
+        OutputPort outPort = getConnectedOutputPort("avg");
+        FrameValue outFrame = outPort.fetchAvailableFrame(null).asFrameValue();
+        outFrame.setValue(output);
+        outPort.pushFrame(outFrame);
+    }
+}