Error reading mp4 file. Unknown error 0xC00D002F

Question

Mikheil Azatov 2016-10-11

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/306777-error-reading-mp4-file-unknown-error-0xc00d002f

回答： Walter Roberson 2017-10-17

I'm receiving an error reading *.mp4 file.

>> im=read(vid,1);
Error using VideoReader/populateNumFrames (line 636)
Could not read file due to an unexpected error. Reason: Read Failed Reason: Unknown error 0xC00D002F

The error pops up when it tries to read number of frames in the video files:

>> get(vid,'NumberOfFrames');
Error using VideoReader/populateNumFrames (line 636)
Could not read file due to an unexpected error. Reason: Could not obtain native media type Reason: Unknown error 0xC00D002F
Error in VideoReader/get.NumberOfFrames (line 316)
                obj.populateNumFrames();
Error in VideoReader/get.NumberOfFrames (line 316)
                obj.populateNumFrames();
Error in VideoReader/read (line 143)
numFrames = get(obj, 'NumberOfFrames');

I've been able to open many other mp4 files before and I can open this file with VLC or WMP without problems.

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Sam Duckerin 2017-10-17

Have you found a solution?

I've got the same problem, trying to use VideoReader to load an H264 encoded .mp4 file. I needed to download the DivX H264 codec in order to be able to watch the video in WMP, which now works fine. I thought MATLAB might need to use the same codec but I'm still getting the "Unknown error 0xC00D002F"

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Answer 1

Walter Roberson 2017-10-17

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/306777-error-reading-mp4-file-unknown-error-0xc00d002f#answer_286259

It is difficult to find information on this error. I find numerous sites claiming "registry error", but they look like boilerplate text to me rather than actual technical analysis.

The closest that I can find to a real cause is https://github.com/Dash-Industry-Forum/dash.js/issues/1615 which hints that the error can (perhaps among other reasons) occur in some cases when trying to play DRM protected streams, or mixed streams that include DRM protected substreams.