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how to process multiple video files from a folder

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I am in the process of processing numerous video files from a folder, so I need a sample support for processing one video file at a time. I am using the following snippet, but I am getting stuck with the following additional parameter when I look at the file name, which is halting my progress. Any assistance would be greatly appreciated.
folder = 'C:\Video_file\';
files = dir(folder)
files = 0×1 empty struct array with fields: name folder date bytes isdir datenum
Error using numel
Not enough input arguments.
ans =
162 % on my windows system
I see followig output
ans =
'.' % this is NOT required
ans =
'..' % this is NOT required
ans =
ans =
Thank you very much.
Stephen23 on 21 Aug 2023
Edited: Stephen23 on 21 Aug 2023
numel( % this will throw an error if S has zero/multiple elements.
"I want to loop through the files one by one"
You can simply loop over the elements of S:
S = dir(..);
for k = 1:numel(S)
F = fullfile(S(k).folder,S(k).name);
% do whatever you want with filename F

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Answers (2)

C B on 21 Aug 2023
files = dir('C:\Video_file\*.avi')

Image Analyst
Image Analyst on 21 Aug 2023
This is one of the most common FAQ questions, so see the FAQ:


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