/*
* 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.
*/
package androidx.media.filterfw.samples.simplecamera;
import android.util.Log;
import androidx.media.filterfw.Filter;
import androidx.media.filterfw.FrameBuffer2D;
import androidx.media.filterfw.FrameImage2D;
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 IfElseFilter extends Filter {
private static final String TAG = "IfElseFilter";
private static boolean mLogVerbose = Log.isLoggable(TAG, Log.VERBOSE);
public IfElseFilter(MffContext context, String name) {
super(context, name);
}
@Override
public Signature getSignature() {
FrameType imageIn = FrameType.image2D(FrameType.ELEMENT_RGBA8888, FrameType.READ_GPU);
FrameType videoIn = FrameType.image2D(FrameType.ELEMENT_RGBA8888, FrameType.READ_GPU);
FrameType imageOut = FrameType.image2D(FrameType.ELEMENT_RGBA8888, FrameType.WRITE_GPU);
return new Signature().addInputPort("falseResult", Signature.PORT_REQUIRED, imageIn)
.addInputPort("trueResult", Signature.PORT_REQUIRED, videoIn)
.addInputPort("condition", Signature.PORT_REQUIRED, FrameType.single(boolean.class))
.addOutputPort("output", Signature.PORT_REQUIRED, imageOut)
.disallowOtherPorts();
}
@Override
protected void onProcess() {
OutputPort outPort = getConnectedOutputPort("output");
FrameImage2D trueFrame = getConnectedInputPort("trueResult").pullFrame().asFrameImage2D();
FrameImage2D falseFrame = getConnectedInputPort("falseResult").pullFrame().asFrameImage2D();
FrameValue boolFrameValue = getConnectedInputPort("condition").pullFrame().asFrameValue();
boolean condition = (Boolean) boolFrameValue.getValue();
FrameBuffer2D outputFrame;
// If the condition is true, then we want to use the camera, else use the gallery
if (condition) {
outputFrame = trueFrame;
} else {
outputFrame = falseFrame;
}
outPort.pushFrame(outputFrame);
}
}