How am I to open an avi file for motion tracking?

Question

Phillip Tiam Watt 2012-8-30

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/46997-how-am-i-to-open-an-avi-file-for-motion-tracking

this is what happens when I enter it

>> avi = mmreader('samplevideo4.avi');
??? Initialization failed. (No combination of intermediate filters could be found to
make the connection.)
Error in ==> mmreader.mmreader>mmreader.init at 423
            obj.MMReaderImpl = audiovideo.mmreader(fullName);
Error in ==> mmreader.mmreader>mmreader.mmreader at 133
            obj.init(fileName);

as for aviread

>> avi = aviread('samplevideo4.avi');
Warning: AVIREAD will be removed in a future release. Use MMREADER instead. 
> In aviread at 29
??? Error using ==> aviread at 84
Unable to open file.

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Answer 1

Walter Roberson 2012-8-30

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/46997-how-am-i-to-open-an-avi-file-for-motion-tracking#answer_57439

Use aviinfo() or mmfileinfo() or VideoReader.get() to examine the properties of the AVI file.

It could be that the AVI file uses a codec that you do not have installed. That happens especially for the Indeo5 codec, which is not installed by default in Windows 7, and it is not possible to get a version of the Indeo5 codec that works with a 64 bit version of MATLAB.