securesmartcam / app / src / main / java / org / witness / obscuracam / video / RegionTrail.java @ 41590feb
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package org.witness.obscuracam.video; |
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import java.util.HashMap; |
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import java.util.Iterator; |
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import java.util.TreeSet; |
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public class RegionTrail { |
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private HashMap<Integer,ObscureRegion> regionMap = new HashMap<Integer,ObscureRegion>(); |
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private int startTime = 0; |
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private int endTime = 0; |
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public static final String OBSCURE_MODE_REDACT = "black"; |
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public static final String OBSCURE_MODE_PIXELATE = "pixel"; |
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private String obscureMode = OBSCURE_MODE_PIXELATE; |
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private boolean doTweening = true; |
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public boolean isDoTweening() { |
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return doTweening;
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} |
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public void setDoTweening(boolean doTweening) { |
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this.doTweening = doTweening;
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} |
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public String getObscureMode() { |
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return obscureMode;
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} |
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public void setObscureMode(String obscureMode) { |
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this.obscureMode = obscureMode;
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} |
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public RegionTrail (int startTime, int endTime) |
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{ |
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this.startTime = startTime;
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this.endTime = endTime;
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} |
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public int getStartTime() { |
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return startTime;
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} |
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public void setStartTime(int startTime) { |
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this.startTime = startTime;
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} |
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public int getEndTime() { |
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return endTime;
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} |
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public void setEndTime(int endTime) { |
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this.endTime = endTime;
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} |
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public void addRegion (ObscureRegion or) |
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{ |
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regionMap.put(or.timeStamp,or); |
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or.setRegionTrail(this);
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} |
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public void removeRegion (ObscureRegion or) |
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{ |
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regionMap.remove(or.timeStamp); |
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} |
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public Iterator<ObscureRegion> getRegionsIterator () |
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{ |
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return regionMap.values().iterator();
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} |
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public ObscureRegion getRegion (Integer key) |
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{ |
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return regionMap.get(key);
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} |
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public int getRegionCount () |
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{ |
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return regionMap.size();
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} |
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public TreeSet<Integer> getRegionKeys () |
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{ |
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TreeSet<Integer> regionKeys = new TreeSet<Integer>(regionMap.keySet()); |
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return regionKeys;
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} |
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public boolean isWithinTime (int time) |
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{ |
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if (time < startTime || time > endTime)
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return false; |
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else
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return true; |
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} |
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public ObscureRegion getCurrentRegion (int time, boolean doTween) |
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{ |
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ObscureRegion regionResult = null;
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if (time < startTime || time > endTime)
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return null; |
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else if (regionMap.size() > 0) |
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{ |
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TreeSet<Integer> regionKeys = new TreeSet<Integer>(regionMap.keySet()); |
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Integer lastRegionKey = -1, regionKey = -1; |
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Iterator<Integer> itKeys = regionKeys.iterator(); |
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while (itKeys.hasNext())
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{ |
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regionKey = itKeys.next(); |
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int comp = regionKey.compareTo(time);
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if (comp == 0 || comp == 1) |
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{ |
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ObscureRegion regionThis = regionMap.get(regionKey); |
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if (lastRegionKey != -1 && doTween) |
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{ |
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ObscureRegion regionLast = regionMap.get(lastRegionKey); |
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float sx, sy, ex, ey;
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int timeDiff = regionThis.timeStamp - regionLast.timeStamp;
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int timePassed = time - regionLast.timeStamp;
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float d = ((float)timePassed) / ((float)timeDiff); |
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sx = regionLast.sx + ((regionThis.sx-regionLast.sx)*d); |
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sy = regionLast.sy + ((regionThis.sy-regionLast.sy)*d); |
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ex = regionLast.ex + ((regionThis.ex-regionLast.ex)*d); |
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ey = regionLast.ey + ((regionThis.ey-regionLast.ey)*d); |
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regionResult = new ObscureRegion(time, sx, sy, ex, ey);
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} |
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else
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regionResult = regionThis; |
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break; //it is a match! |
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} |
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lastRegionKey = regionKey; |
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} |
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if (regionResult == null) |
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regionResult = regionMap.get(lastRegionKey); |
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} |
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return regionResult;
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} |
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} |