本文整理了Java中org.openimaj.video.Video类的一些代码示例，展示了Video类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Video类的具体详情如下：
包路径：org.openimaj.video.Video
类名称：Video

Video介绍

[英]Abstract base class for videos.
[中]视频的抽象基类。

代码示例

代码示例来源：origin: openimaj/openimaj

/**
   * @return the current frame
   */
  public MBFImage getCurrentFrame() {
    if (display != null)
      return display.getVideo().getCurrentFrame();
    return null;
  }
}

代码示例来源：origin: openimaj/openimaj

/**
   *     Cache the given time range from the given video.
   * 
   *    @param <I> The type of the video frames
   *    @param video The video to cache
   *    @param start The start of the video to cache
   *    @param end The end of the video to cache
   *    @return A {@link VideoCache}
   */
  public static <I extends Image<?,I>> VideoCache<I> cacheVideo( Video<I> video,
      VideoTimecode start, VideoTimecode end )
  {
    VideoCache<I> vc = new VideoCache<I>( video.getWidth(), 
        video.getHeight(), video.getFPS() );
    video.setCurrentFrameIndex( start.getFrameNumber() );
    while( video.hasNextFrame() && 
        video.getCurrentFrameIndex() < end.getFrameNumber() )
      vc.addFrame( video.getNextFrame().clone() );
    return vc;
  }
}

代码示例来源：origin: openimaj/openimaj

/**
 * Set the position of the play head to the given percentage. If the video
 * is a live video this method will have no effect.
 *
 * @param pc
 *            The percentage to set the play head to.
 */
public void setPosition(final double pc) {
  if (pc > 100 || pc < 0)
    throw new IllegalArgumentException("Percentage must be less than " +
        "or equals to 100 and greater than or equal 0. Given " + pc);
  // If it's a live video we cannot do anything
  if (this.video.countFrames() == -1)
    return;
  // We have to seek to a millisecond position, so we find out the length
  // of the video in ms and then multiply by the percentage
  final double nMillis = this.video.countFrames() * this.video.getFPS();
  final long msPos = (long) (nMillis * pc / 100d);
  System.out.println("msPOs = " + msPos + " (" + pc + "%)");
  this.seek(msPos);
}

代码示例来源：origin: openimaj/openimaj

/**
 * Returns the position of the play head in this video as a percentage of
 * the length of the video. IF the video is a live video, this method will
 * always return 0;
 *
 * @return The percentage through the video.
 */
public double getPosition() {
  final long nFrames = this.video.countFrames();
  if (nFrames == -1)
    return 0;
  return this.video.getCurrentFrameIndex() * 100d / nFrames;
}

代码示例来源：origin: openimaj/openimaj

/**
 * Set the current frame index (i.e. skips to a certain frame). If your
 * video subclass can implement this in a cleverer way, then override this
 * method, otherwise this method will simply grab frames until it gets to
 * the given frame index. This method is naive and may take some time as
 * each frame will be decoded by the video decoder.
 * 
 * @param newFrame
 *            the new index
 */
public synchronized void setCurrentFrameIndex(long newFrame)
{
  // We're already at the frame?
  if (this.currentFrame == newFrame)
    return;
  // If we're ahread of where we want to be
  if (this.currentFrame > newFrame)
  {
    this.reset();
  }
  // Grab frames until we read the new frame counter
  // (or until the getNextFrame() method returns null)
  while (this.currentFrame < newFrame && getNextFrame() != null)
    ;
}

代码示例来源：origin: openimaj/openimaj

public TLDMain(Video<MBFImage> imageSource){
  source = imageSource;
  tld = new TLD(imageSource.getWidth(),imageSource.getHeight());
}
void doWork() throws FileNotFoundException {

代码示例来源：origin: openimaj/openimaj

keyframeTime.getFrameNumber(), video.getFPS() );
HrsMinSecFrameTimecode endTime = new HrsMinSecFrameTimecode( 
    keyframeTime.getFrameNumber(), video.getFPS() );
video.setCurrentFrameIndex( startTime.getFrameNumber() );
I image = video.getCurrentFrame();
I keyframeImage = image.clone();
    image = video.getNextFrame();
    endTime.setFrameNumber( video.getCurrentFrameIndex() );
int nFramesToJumpBack = (int)video.getFPS()*2;	// We'll go 2 seconds at a time
    video.getFPS() );

代码示例来源：origin: openimaj/openimaj

/**
 *     Cache the whole of the given video.
 *  @param <I> Type of {@link Image} 
 * 
 *    @param video The video to cache
 *    @return A {@link VideoCache}
 */
public static <I extends Image<?,I>> VideoCache<I> cacheVideo( Video<I> video )
{
  VideoCache<I> vc = new VideoCache<I>( video.getWidth(), 
      video.getHeight(), video.getFPS() );
  video.reset();
  while( video.hasNextFrame() )
    vc.addFrame( video.getNextFrame().clone() );
  return vc;
}

代码示例来源：origin: org.openimaj/core-video

this.currentFrame = this.video.getCurrentFrame();
      if (this.video.countFrames() != -1 && this.currentFrame != null) {
        final long t = this.timeKeeper.getTime().getTimecodeInMilliseconds();
          nextFrame = this.video.getNextFrame();
          nextFrameTimestamp = this.video.getTimeStamp();
        nextFrame = this.video.getNextFrame();
        nextFrameTimestamp = this.video.getTimeStamp();
        if (this.currentFrame == null && (this.timeKeeper instanceof VideoDisplay.BasicVideoTimeKeeper))
          ((VideoDisplay.BasicVideoTimeKeeper) this.timeKeeper).setTimeOffset(-nextFrameTimestamp);
    roughSleepTime = (long) (1000 / this.video.getFPS()) - tolerance;

代码示例来源：origin: org.openimaj/sandbox

FeatureTable trackFeatures(Video<FImage> video, int nFeatures, boolean replace) {
  final TrackingContext tc = new TrackingContext();
  final FeatureList fl = new FeatureList(nFeatures);
  final FeatureTable ft = new FeatureTable(nFeatures);
  final KLTTracker tracker = new KLTTracker(tc, fl);
  tc.setSequentialMode(true);
  tc.setWriteInternalImages(false);
  tc.setAffineConsistencyCheck(-1);
  FImage prev = video.getCurrentFrame();
  tracker.selectGoodFeatures(prev);
  ft.storeFeatureList(fl, 0);
  while (video.hasNextFrame()) {
    final FImage next = video.getNextFrame();
    tracker.trackFeatures(prev, next);
    if (replace)
      tracker.replaceLostFeatures(next);
    prev = next;
    ft.storeFeatureList(fl, video.getCurrentFrameIndex());
  }
  return ft;
}

代码示例来源：origin: openimaj/openimaj

/**
 * Process the video and provide a URI which all relations will be linked to.
 *
 * @param v The video to process
 * @param uri The URI of the video
 */
public void processVideo( final Video<MBFImage> v, final String uri )
{
  this.videoURI = uri;
  for (final MBFImage frame : v)
    this.processFrame( frame,
      new HrsMinSecFrameTimecode( v.getCurrentFrameIndex(), v.getFPS() ) );
}

代码示例来源：origin: org.openimaj/sandbox

@Override
  public List<Identifiable> getIdentifiers()
  {
    final List<Identifiable> r =
        new ArrayList<Identifiable>();
    r.add(new IdentifiableVideoFrame(video.getCurrentFrame(),
        new HrsMinSecFrameTimecode(video.getCurrentFrameIndex(),
            video.getFPS())));
    return r;
  }
}, sp);

代码示例来源：origin: openimaj/openimaj

@Override
public double getFPS()
{
  return video.getFPS();
}

代码示例来源：origin: openimaj/openimaj

nFrames = video.countFrames();
video.setCurrentFrameIndex( keyframeTime.getFrameNumber() );
MBFImage image = video.getCurrentFrame();

代码示例来源：origin: openimaj/openimaj

this.currentFrame = this.video.getCurrentFrame();
this.currentFrameTimestamp = this.video.getTimeStamp();
  this.audioPlayer.reset();
this.video.reset();
this.currentFrameTimestamp = 0;
break;
this.video.close();
break;

代码示例来源：origin: openimaj/openimaj

@Override
public ImageCollectionEntry<T> next() {
  final T image = video.getNextFrame();
  final ImageCollectionEntry<T> entry = new ImageCollectionEntry<T>();
  entry.meta = new HashMap<String, String>();
  entry.meta.put("timestamp", "" + this.frameCount / this.video.getFPS());
  entry.accepted = selection.acceptEntry(image);
  entry.image = image;
  this.frameCount++;
  // hack to stop the iterator at the end until hasNext works properly
  if (image == null)
    frameCount = -1;
  return entry;
}

代码示例来源：origin: openimaj/openimaj

@Override
public T next() {
  return video.getNextFrame();
}

代码示例来源：origin: openimaj/openimaj

@Override
public long countFrames()
{
  return video.countFrames();
}

代码示例来源：origin: openimaj/openimaj

/**
 *
 *    @param video
 */
protected VideoObjectVisualisation( final Video<MBFImage> video )
{
  super( video );
  this.frameHeight = video.getHeight();
}

代码示例来源：origin: openimaj/openimaj

@Override
public boolean hasNextFrame()
{
  return video.hasNextFrame();
}