MATLAB Answers

Slow High Resolution video processing

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C Fischer
C Fischer on 16 Aug 2016
Answered: Qu Cao on 23 Aug 2016
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'


Swarooph on 16 Aug 2016
Could you post a snippet of the code? It would be useful to know what functions you are using to make this happen.
C Fischer
C Fischer on 17 Aug 2016
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);
Swarooph on 23 Aug 2016
In my experience, VideoPlayer is slow. Try using vision.DeployableVideoPlayer instead.

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Answers (1)

Qu Cao
Qu Cao on 23 Aug 2016
The DeployableVideoPlayer object displays video frames. This player is capable of displaying high definition video at high frame rates.


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