search

marek-simonik / record3d

Accompanying library for the Record3D iOS app (https://record3d.app/). Allows you to receive RGBD stream from iOS devices with TrueDepth camera(s).
https://record3d.app/
GNU Lesser General Public License v2.1
382 stars 55 forks source link

Error in demo.exe #9

Closed vrtx-voiod closed 3 years ago

vrtx-voiod commented 3 years ago

I've successfully built the solution, but when I run the demo.exe I get this error:

error

marek-simonik commented 3 years ago

Judging from the (partially occluded) last line in the command line window, it seems like the crash might have something to do with a mutex in the code.

I suspect it could relate to this mutex.

Try to replace this whole portion of code:

#if WIN32
    std::recursive_mutex mainThreadLock_{};
#else
    std::mutex mainThreadLock_{};
#endif

by this:

std::recursive_mutex mainThreadLock_{};

There were issues with the regular std::mutex on Windows, so I replaced it by std::recursive_mutex. It may be possible that WIN32 is not #defined in your environment, in which case the ordinary mutex would be used. By explicitly using std::recursive_mutex mainThreadLock_{};, we can see whether that was really the cause of the error. Let me know if that helped or not.

vrtx-voiod commented 3 years ago

Thank you for your quick response :)

Unfortunately it didn't work, it's still the same error:

D:\a01\_work\6\s\src\vctools\crt\github\stl\src\mutex.cpp(167): unlock of unowned mutex

marek-simonik commented 3 years ago

That is interesting — I want to reproduce the error, but I cannot on my machine. May I ask which compiler do you use — is it MSVC or a different one?

By the way, I am just curious, does this error happen also when you run the demo in Release instead of Debug?

vrtx-voiod commented 3 years ago

After starting from scratch I have realized that during build 2 parts are skipped:

1>------ Skipped Build: Project: INSTALL, Configuration: Debug x64 ------ 1>Project not selected to build for this solution configuration 2>------ Skipped Build: Project: ALL_BUILD, Configuration: Debug x64 ------ 2>Project not selected to build for this solution configuration ========== Build: 0 succeeded, 0 failed, 6 up-to-date, 2 skipped ==========

I also set up a solution for Visual Studio Community 2017 (2) 15.9.24 and get the very same error message:

D:\a01\_work\6\s\src\vctools\crt\github\stl\src\mutex.cpp(167): unlock of unowned mutex

Sometimes i addition this error occurs in the debug console:

Unhandled exception at 0x00007FFCAEA274BB (opencv_world412d.dll) in demo.exe: 0xC0000005: Access violation reading location 0x0000000000000000. occurred

But I realized that this only happens when I did not start the record in the iOS app.

marek-simonik commented 3 years ago

I have just merged a pull request by @y-labo (https://github.com/marek-simonik/record3d/pull/10). Please download the latest DemoMain.cpp to see whether the error you encountered has been fixed.

marek-simonik commented 3 years ago

@vrtx-voiod since you gave thumbs up to my latest message and have not reported a new issue with the demo, I assume the problem was solved, so I am closing this issue.