VideoReader.m and read.m in MATLAB 64 bit

Question

Mario Trevino 2012-11-13

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/53553-videoreader-m-and-read-m-in-matlab-64-bit

采纳的回答： Walter Roberson

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read function is crashing at line 91 even after updating line 91

if( ~isempty(obj.NumberOfFrames) )

with

if( ~isempty(obj(1).NumberOfFrames) )

Another piece of information: I have MATLAB 32 bit in another computer. I brought both functions from 32 bit into 64 bit, and the reader is still crashing.

this is certainly a bug in 64 bit. has anyone the solution for this??? thanks!

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Walter Roberson 2012-11-13

For certainty, please indicte the error message.

Mario Trevino 2012-11-13

in the 64bit, intact:

Dot name reference on non-scalar structure. Error in VideoReader/read (line 93) frameIndex(frameIndex == Inf) = obj.NumberOfFrames;

Error in core_ZBtracker>makebackground_frame (line 214) mov=read(vidObj, [start_vidFrame start_vidFrame+delta_interno]);

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Answer 1

Walter Roberson 2012-11-13

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https://ww2.mathworks.cn/matlabcentral/answers/53553-videoreader-m-and-read-m-in-matlab-64-bit#answer_65167

It isn't enough to just update a single line: you need to update all occurrences, including the one on line 93 - obj(1).NumberOfFrames

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Answer 2

Mario Trevino 2012-11-13

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https://ww2.mathworks.cn/matlabcentral/answers/53553-videoreader-m-and-read-m-in-matlab-64-bit#answer_65168

NICE! little bug, simple solution, big headache. thank you very much Walt!

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Walter Roberson 2012-11-13

Hasn't been a "Walt" in my family for at least 4-5 generations. There is reason to expect that the name was used in full by our family back to the early 12th century.

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