problem with videoWriter not closing (2)

Hi folks,

This is a followup to my original question, found here!

I am creating a video and having trouble with the videoWriter not closing, or taking a very long time to close.

It appears it doesn't actually get to the close(writeObj) statement as I left the programme running over 2 days and had no video files written.

May I please ask how to fix this? The code is as follows:

writerObj = VideoWriter(mainVideoName);
writerObj.FrameRate = 10;
open(writerObj);

for j = 1 : numMainImages
    mainImg = imread([imageMainFolder imageMainFiles(j).name]);
    mainImg = mainImg(:,:,1:3);
    cropImg = imread([cropsFolder cropFiles(j).name]);
    threshImg = im2uint8(imread([threshFolder threshFiles(j).name]));
    h = figure;
    h(1) = subplot(2, 2, 1);
    image(cropImg, "Parent", h(1));
    h(2) = subplot(2, 2, 2);
    image(threshImg, "Parent", h(2));
    h(3) = subplot(2, 2, 3:4);
    image(mainImg, "Parent",  h(3));
    myText = ['Temperature = ', num2str(myTemp(j)), '^{o}C'];
    annotation('textbox', [0.4, 0.55, 0,0], 'string', myText, "FitBoxToText","on");
    h(2).Colormap = gray(256);
    
    for k = 1:3
        h(k).XAxis.Visible = "off";
        h(k).YAxis.Visible = 'off';
    end
    
    thisFrame = getframe(gca);
    writeVideo(writerObj, thisFrame);      
end
close(writerObj);

Answer 1

[yanqi liu]

yes，sir，may be use

fclose('all')

to make all handler close

[Teshan Rezel]

hi @yanqi liu I'm afraid this doesn't work either, as the code never actually makes it to the close(writerObj) line.