| /* |
| * 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); |
| } |
| } |
| } |
| |
| } |
| |