org.openimaj.video.Video.getNextFrame()方法的使用及代码示例

x33g5p2x  于2022-02-01 转载在 其他  
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本文整理了Java中org.openimaj.video.Video.getNextFrame()方法的一些代码示例，展示了Video.getNextFrame()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.getNextFrame()方法的具体详情如下：
包路径：org.openimaj.video.Video
类名称：Video
方法名：getNextFrame

Video.getNextFrame介绍

[英]Get the next frame. Increments the frame counter by 1.
[中]获取下一帧。将帧计数器增加1。

代码示例

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

  1. @Override
  2. public T next() {
  3.   return video.getNextFrame();
  4. }

代码示例来源：origin: openimaj/openimaj

  1. @Override
  2. public T next() {
  3.   return video.getNextFrame();
  4. }

代码示例来源：origin: openimaj/openimaj

  1. @Override
  2. public OUTPUT getNextFrame()
  3. {
  4.   return currentFrame = translateFrame(video.getNextFrame());
  5. }

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

  1. @Override
  2. public OUTPUT getNextFrame()
  3. {
  4.   return currentFrame = translateFrame(video.getNextFrame());
  5. }

代码示例来源：origin: openimaj/openimaj

  1. /**
  2.  * {@inheritDoc}
  3.  *
  4.  * @see org.openimaj.video.Video#getNextFrame()
  5.  */
  6. @Override
  7. public T getNextFrame()
  8. {
  9.   if (this.video == null)
  10.     throw new UnsupportedOperationException(
  11.         "Chain method called on non-chainable processor");
  12.   currentFrame = this.video.getNextFrame();
  13.   if (currentFrame == null)
  14.     return null;
  15.   return processFrame(currentFrame);
  16. }

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

  1. /**
  2.  * {@inheritDoc}
  3.  *
  4.  * @see org.openimaj.video.Video#getNextFrame()
  5.  */
  6. @Override
  7. public T getNextFrame()
  8. {
  9.   if (this.video == null)
  10.     throw new UnsupportedOperationException(
  11.         "Chain method called on non-chainable processor");
  12.   currentFrame = this.video.getNextFrame();
  13.   if (currentFrame == null)
  14.     return null;
  15.   return processFrame(currentFrame);
  16. }

代码示例来源：origin: openimaj/openimaj

  1. /**
  2.  * Set the current frame index (i.e. skips to a certain frame). If your
  3.  * video subclass can implement this in a cleverer way, then override this
  4.  * method, otherwise this method will simply grab frames until it gets to
  5.  * the given frame index. This method is naive and may take some time as
  6.  * each frame will be decoded by the video decoder.
  7.  * 
  8.  * @param newFrame
  9.  *            the new index
  10.  */
  11. public synchronized void setCurrentFrameIndex(long newFrame)
  12. {
  13.   // We're already at the frame?
  14.   if (this.currentFrame == newFrame)
  15.     return;
  16.   // If we're ahread of where we want to be
  17.   if (this.currentFrame > newFrame)
  18.   {
  19.     this.reset();
  20.   }
  21.   // Grab frames until we read the new frame counter
  22.   // (or until the getNextFrame() method returns null)
  23.   while (this.currentFrame < newFrame && getNextFrame() != null)
  24.     ;
  25. }

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

  1. /**
  2.  * Set the current frame index (i.e. skips to a certain frame). If your
  3.  * video subclass can implement this in a cleverer way, then override this
  4.  * method, otherwise this method will simply grab frames until it gets to
  5.  * the given frame index. This method is naive and may take some time as
  6.  * each frame will be decoded by the video decoder.
  7.  * 
  8.  * @param newFrame
  9.  *            the new index
  10.  */
  11. public synchronized void setCurrentFrameIndex(long newFrame)
  12. {
  13.   // We're already at the frame?
  14.   if (this.currentFrame == newFrame)
  15.     return;
  16.   // If we're ahread of where we want to be
  17.   if (this.currentFrame > newFrame)
  18.   {
  19.     this.reset();
  20.   }
  21.   // Grab frames until we read the new frame counter
  22.   // (or until the getNextFrame() method returns null)
  23.   while (this.currentFrame < newFrame && getNextFrame() != null)
  24.     ;
  25. }

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

  1. /**
  2.  * Process the given video using this processor.
  3.  *
  4.  * @param video
  5.  *            The video to process.
  6.  */
  7. public void process(Video<T> video)
  8. {
  9.   T frame = null;
  10.   while ((frame = video.getNextFrame()) != null)
  11.     processFrame(frame);
  12.   processingComplete();
  13. }

代码示例来源：origin: openimaj/openimaj

  1. @Override
  2. public ImageCollectionEntry<T> next() {
  3.   final T image = video.getNextFrame();
  4.   final ImageCollectionEntry<T> entry = new ImageCollectionEntry<T>();
  5.   entry.meta = new HashMap<String, String>();
  6.   entry.meta.put("timestamp", "" + this.frameCount / this.video.getFPS());
  7.   entry.accepted = selection.acceptEntry(image);
  8.   entry.image = image;
  9.   this.frameCount++;
  10.   // hack to stop the iterator at the end until hasNext works properly
  11.   if (image == null)
  12.     frameCount = -1;
  13.   return entry;
  14. }

代码示例来源：origin: openimaj/openimaj

  1. /**
  2.  * Process the given video using this processor.
  3.  *
  4.  * @param video
  5.  *            The video to process.
  6.  */
  7. public void process(Video<T> video)
  8. {
  9.   T frame = null;
  10.   while ((frame = video.getNextFrame()) != null)
  11.     processFrame(frame);
  12.   processingComplete();
  13. }

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

  1. nextFrame = this.video.getNextFrame();
  2.   nextFrameTimestamp = this.video.getTimeStamp();
  3. nextFrame = this.video.getNextFrame();
  4. nextFrameTimestamp = this.video.getTimeStamp();
  5. if (this.currentFrame == null && (this.timeKeeper instanceof VideoDisplay.BasicVideoTimeKeeper))

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

  1. /**
  2.  *     Cache the whole of the given video.
  3.  *  @param <I> Type of {@link Image} 
  4.  * 
  5.  *    @param video The video to cache
  6.  *    @return A {@link VideoCache}
  7.  */
  8. public static <I extends Image<?,I>> VideoCache<I> cacheVideo( Video<I> video )
  9. {
  10.   VideoCache<I> vc = new VideoCache<I>( video.getWidth(), 
  11.       video.getHeight(), video.getFPS() );
  12.   video.reset();
  13.   while( video.hasNextFrame() )
  14.     vc.addFrame( video.getNextFrame().clone() );
  15.   return vc;
  16. }

代码示例来源：origin: openimaj/openimaj

  1. /**
  2.  *     Cache the whole of the given video.
  3.  *  @param <I> Type of {@link Image} 
  4.  * 
  5.  *    @param video The video to cache
  6.  *    @return A {@link VideoCache}
  7.  */
  8. public static <I extends Image<?,I>> VideoCache<I> cacheVideo( Video<I> video )
  9. {
  10.   VideoCache<I> vc = new VideoCache<I>( video.getWidth(), 
  11.       video.getHeight(), video.getFPS() );
  12.   video.reset();
  13.   while( video.hasNextFrame() )
  14.     vc.addFrame( video.getNextFrame().clone() );
  15.   return vc;
  16. }

代码示例来源：origin: openimaj/openimaj

  1. /**
  2.    *     Cache the given time range from the given video.
  3.    * 
  4.    *    @param <I> The type of the video frames
  5.    *    @param video The video to cache
  6.    *    @param start The start of the video to cache
  7.    *    @param end The end of the video to cache
  8.    *    @return A {@link VideoCache}
  9.    */
  10.   public static <I extends Image<?,I>> VideoCache<I> cacheVideo( Video<I> video,
  11.       VideoTimecode start, VideoTimecode end )
  12.   {
  13.     VideoCache<I> vc = new VideoCache<I>( video.getWidth(), 
  14.         video.getHeight(), video.getFPS() );
  15.     video.setCurrentFrameIndex( start.getFrameNumber() );
  16.     while( video.hasNextFrame() && 
  17.         video.getCurrentFrameIndex() < end.getFrameNumber() )
  18.       vc.addFrame( video.getNextFrame().clone() );
  19.     return vc;
  20.   }
  21. }

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

  1. /**
  2.    *     Cache the given time range from the given video.
  3.    * 
  4.    *    @param <I> The type of the video frames
  5.    *    @param video The video to cache
  6.    *    @param start The start of the video to cache
  7.    *    @param end The end of the video to cache
  8.    *    @return A {@link VideoCache}
  9.    */
  10.   public static <I extends Image<?,I>> VideoCache<I> cacheVideo( Video<I> video,
  11.       VideoTimecode start, VideoTimecode end )
  12.   {
  13.     VideoCache<I> vc = new VideoCache<I>( video.getWidth(), 
  14.         video.getHeight(), video.getFPS() );
  15.     video.setCurrentFrameIndex( start.getFrameNumber() );
  16.     while( video.hasNextFrame() && 
  17.         video.getCurrentFrameIndex() < end.getFrameNumber() )
  18.       vc.addFrame( video.getNextFrame().clone() );
  19.     return vc;
  20.   }
  21. }

代码示例来源：origin: org.openimaj/sandbox

  1. FeatureTable trackFeatures(Video<FImage> video, int nFeatures, boolean replace) {
  2.   final TrackingContext tc = new TrackingContext();
  3.   final FeatureList fl = new FeatureList(nFeatures);
  4.   final FeatureTable ft = new FeatureTable(nFeatures);
  5.   final KLTTracker tracker = new KLTTracker(tc, fl);
  6.   tc.setSequentialMode(true);
  7.   tc.setWriteInternalImages(false);
  8.   tc.setAffineConsistencyCheck(-1);
  9.   FImage prev = video.getCurrentFrame();
  10.   tracker.selectGoodFeatures(prev);
  11.   ft.storeFeatureList(fl, 0);
  12.   while (video.hasNextFrame()) {
  13.     final FImage next = video.getNextFrame();
  14.     tracker.trackFeatures(prev, next);
  15.     if (replace)
  16.       tracker.replaceLostFeatures(next);
  17.     prev = next;
  18.     ft.storeFeatureList(fl, video.getCurrentFrameIndex());
  19.   }
  20.   return ft;
  21. }

代码示例来源：origin: openimaj/openimaj

  1. FeatureTable trackFeatures(Video<FImage> video, int nFeatures, boolean replace) {
  2.   final TrackingContext tc = new TrackingContext();
  3.   final FeatureList fl = new FeatureList(nFeatures);
  4.   final FeatureTable ft = new FeatureTable(nFeatures);
  5.   final KLTTracker tracker = new KLTTracker(tc, fl);
  6.   tc.setSequentialMode(true);
  7.   tc.setWriteInternalImages(false);
  8.   tc.setAffineConsistencyCheck(-1);
  9.   FImage prev = video.getCurrentFrame();
  10.   tracker.selectGoodFeatures(prev);
  11.   ft.storeFeatureList(fl, 0);
  12.   while (video.hasNextFrame()) {
  13.     final FImage next = video.getNextFrame();
  14.     tracker.trackFeatures(prev, next);
  15.     if (replace)
  16.       tracker.replaceLostFeatures(next);
  17.     prev = next;
  18.     ft.storeFeatureList(fl, video.getCurrentFrameIndex());
  19.   }
  20.   return ft;
  21. }

代码示例来源：origin: openimaj/openimaj

  1. image = video.getNextFrame();

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

  1. image = video.getNextFrame();

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