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/*
* 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 androidx.media.filterfw.Filter;
import androidx.media.filterfw.Frame;
import androidx.media.filterfw.FrameType;
import androidx.media.filterfw.InputPort;
import androidx.media.filterfw.MffContext;
import androidx.media.filterfw.OutputPort;
import androidx.media.filterfw.Signature;
public final class BranchFilter extends Filter {
private boolean mSynchronized = true;
public BranchFilter(MffContext context, String name) {
super(context, name);
}
public BranchFilter(MffContext context, String name, boolean synced) {
super(context, name);
mSynchronized = synced;
}
@Override
public Signature getSignature() {
return new Signature()
.addInputPort("input", Signature.PORT_REQUIRED, FrameType.any())
.addInputPort("synchronized", Signature.PORT_OPTIONAL,FrameType.single(boolean.class))
.disallowOtherInputs();
}
@Override
public void onInputPortOpen(InputPort port) {
if (port.getName().equals("input")) {
for (OutputPort outputPort : getConnectedOutputPorts()) {
port.attachToOutputPort(outputPort);
}
} else if (port.getName().equals("synchronized")) {
port.bindToFieldNamed("mSynchronized");
port.setAutoPullEnabled(true);
}
}
@Override
protected void onOpen() {
updateSynchronization();
}
@Override
protected void onProcess() {
Frame inputFrame = getConnectedInputPort("input").pullFrame();
for (OutputPort outputPort : getConnectedOutputPorts()) {
if (outputPort.isAvailable()) {
outputPort.pushFrame(inputFrame);
}
}
}
private void updateSynchronization() {
if (mSynchronized) {
for (OutputPort port : getConnectedOutputPorts()) {
port.setWaitsUntilAvailable(true);
}
} else {
for (OutputPort port : getConnectedOutputPorts()) {
port.setWaitsUntilAvailable(false);
}
}
}
}
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