VideoReader skips abruptly changes Current Time to equal Duration and throws error

Hello all,

Long time, first time. I've been working with the VideoReader function for about a year. Only recently the function has stopped being able to read in the AVI files that I record regularly for my experiments.

Before I begin reading frames using the readFrame function, the video object properties look like this: Note, current time is 0.

vidObj = 

  VideoReader with properties:

   General Properties:
            Name: 'VGLUT2 72 3bottom 642020 stim at 5 500ms-06042020224432-0000.avi'
            Path: 'C:\Data\Vglut72 - GtACHR2 in VM VA VL\June 4 2020'
        Duration: 600.0300
     CurrentTime: 0
             Tag: ''
        UserData: []

   Video Properties:
           Width: 720
          Height: 544
       FrameRate: 149.9925
    BitsPerPixel: 24
     VideoFormat: 'RGB24'         

After reading out a handful of frames, the function throws an error:

Error using VideoReader/throwNonEofException (line 660)
Unable to read the file.

Error in VideoReader/readFrame (line 114)
throwNonEofException(obj);

Error in epochExtractedVideoTight (line 106)
        frame = readFrame(vidObj);        

Calling the video object shows that it just set the current time to be the end of the video:

         VideoReader with properties:

   General Properties:
            Name: 'VGLUT2 72 3bottom 642020 stim at 5 500ms-06042020224432-0000.avi'
            Path: 'C:\Data\Vglut72 - GtACHR2 in VM VA VL\June 4 2020'
        Duration: 600.0300
     CurrentTime: 600.0300
             Tag: ''
        UserData: []

   Video Properties:
           Width: 720
          Height: 544
       FrameRate: 149.9925
    BitsPerPixel: 24
     VideoFormat: 'RGB24'    

In this particular case, it happened after reading 17 frames. I have not changed anything about my recording software and I have not changed my Matlab release in years.

Using release Matlab 2018a.

[Walter Roberson]

Would it be possible for you to make the file available for testing purposes?

[Konstantin Bakhurin]

I just upgraded to 2020a and it solved the issue. Thanks.