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      1 /*
      2  * Copyright (C) 2011 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 
     18 package android.filterpacks.base;
     19 
     20 import android.filterfw.core.Filter;
     21 import android.filterfw.core.FilterContext;
     22 import android.filterfw.core.Frame;
     23 import android.filterfw.core.FrameFormat;
     24 import android.filterfw.core.GenerateFinalPort;
     25 import android.filterfw.core.KeyValueMap;
     26 
     27 /**
     28  * @hide
     29  */
     30 public class FrameBranch extends Filter {
     31 
     32     @GenerateFinalPort(name = "outputs", hasDefault = true)
     33     private int mNumberOfOutputs = 2;
     34 
     35     public FrameBranch(String name) {
     36         super(name);
     37     }
     38 
     39     @Override
     40     public void setupPorts() {
     41         addInputPort("in");
     42         for (int i = 0; i < mNumberOfOutputs; ++i) {
     43             addOutputBasedOnInput("out" + i, "in");
     44         }
     45     }
     46 
     47     @Override
     48     public FrameFormat getOutputFormat(String portName, FrameFormat inputFormat) {
     49         return inputFormat;
     50     }
     51 
     52     public void process(FilterContext context) {
     53         // Get input frame
     54         Frame input = pullInput("in");
     55 
     56         // Push output
     57         for (int i = 0; i < mNumberOfOutputs; ++i) {
     58             pushOutput("out" + i, input);
     59         }
     60     }
     61 
     62 }
     63