why i am getting error in mmreader function?

2013 10 7
1 个回答
回答已采纳
更新时间：2020 4 29
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0 个投票

when i write the following piece of code i am getting error.
clc
obj=mmreader('wildlife.wmv')
vedio=read(obj)
??? Error using ==> mmreader.mmreader>getFullPathName at 103 The filename specified was not found in the MATLAB path.
Error in ==> mmreader.mmreader at 63 fullFilePath = getFullPathName( filename );
Error in ==> PQR at 2 obj=mmreader('wildlife.wmv')
please help me to solve this problem.

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 采纳的回答

Walter Roberson
Walter Roberson 2013-10-7

0 个投票

It did not find wildlife.wmv . You will need to have a look at which directory you are in, and then go to an operating system window and locate the file and see which directory it is in.
Have a look at fullfile() and at uigetfile()

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Urmila
Urmila 2013-10-8
hello sir,my current directory was=> C:\Users\Administrator\Documents\MATLAB And vedio was in following directory=> C:\Users\Public\Videos\Sample Videos
so i copy vedio & paste it in current directory i.e in C:\Users\Administrator\Documents\MATLAB, is it right? and now i am getting warning=> Unable to determine the number of frames in this file. and error => ??? MATLAB:read:readTimedOut
Error in ==> PQR at 3 video=read(obj). what means that?
here is part of code:
clc
obj= mmreader('Wildlife.wmv')
video=read(obj)
nFrames = Obj.NumberOfFrames
vidHeight = Obj.Height
vidWidth = Obj.Width
ES
ES 2013-10-8
either add C:\Users\Public\Videos\Sample Videos to matlab path using
path
or pass the full file path to mmreader, that is
mmreader('C:\Users\Public\Videos\Sample Videos\Wildlife.wmv')
Walter Roberson
Walter Roberson 2013-10-8
Is it a very large .wmv file?
Urmila
Urmila 2013-10-8
编辑：Urmila 2013-10-8
yes sir,it is of 25 MB. For lager size file is there another solution to read?
Walter Roberson
Walter Roberson 2020-4-29
You could try with VideoReader with a hasFrame / readFrame loop. Or you could use vision.VideoFileReader https://www.mathworks.com/help/vision/ref/vision.videofilereader-system-object.html

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