Slow High Resolution video processing

Question

C Fischer 2016-8-16

0
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https://ww2.mathworks.cn/matlabcentral/answers/299746-slow-high-resolution-video-processing

回答： Qu Cao 2016-8-23

Hi, I've a high resolution video with the dimensions of 2640x2640px. The video is converted from mp4 to avi and with the image viewer I can load the video. But the video is played very, very slowly but is only 63MB. How can I play (and detect and track motion) with a normal speed? Is it possible?

Video details:

   General Properties:
            Name: 'video.avi'
            Path: 'C:\Users\User\Downloads'
        Duration: 36.3029
     CurrentTime: 0
             Tag: ''
        UserData: []
   Video Properties:
           Width: 2640
          Height: 2640
       FrameRate: 29.9700
    BitsPerPixel: 24
     VideoFormat: 'RGB24'

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C Fischer 2016-8-17

编辑：C Fischer 2016-8-17

在 MATLAB Online 中打开

I've tried it with the VideoViewer and also with the code underneath. Both with the same result.. Also with another video with 1000x1000px dimensions

videoFReader = vision.VideoFileReader('C:\Users\User\Downloads\abc2.avi');
videoPlayer = vision.VideoPlayer;
while ~isDone(videoFReader)
  videoFrame = step(videoFReader);
  step(videoPlayer, videoFrame);
end
release(videoPlayer);
release(videoFReader);