imshow results in segmentation fault - darknet import

william-vh commented 1 year ago

Expected behaviour

cv2.imshow("Image", frame) displays frame

Actual behaviour

cv2.imshow("Image", frame) results in segmentation fault, if darknet import is included

Steps to reproduce

I am running darknet (https://github.com/AlexeyAB/darknet/) which is working well from command line. Using the darknet_video.py that is supplied with darknet I get a segmention fault at imshow. I reduced it down the simplest example below. The code works as expected with import darknet removed. With it included, imshow fails, everytime. With imshow commented out of the darknet file, the darknet code properly acquires frames and runs detections.

Simplest possible program to reproduce

import cv2
import darknet

if __name__ == '__main__':

    cap = cv2.VideoCapture('rtsp://admin:xyzxyz@192.168.0.3:554/h264Preview_01_main')

    while cap.isOpened():
        ret, frame = cap.read()
        if not ret:
            break
        cv2.imshow("frame", frame)
        cv2.waitKey(0)

Ubuntu 22.04
opencv-python 4.7.0.68
CUDA_toolkit 11.8
cudnn 8.7
darknet - yolov4

From pip list: - per request

examples-rclpy-pointcloud-publisher  0.15.1
fastbencode                          0.0.5
fasteners                            0.14.1
fastimport                           0.9.14
flake8                               4.0.1
fonttools                            4.29.1
fs                                   2.4.12
future                               0.18.2
gast                                 0.5.2

oauthlib                             3.2.0
olefile                              0.46
opencv-python                        4.7.0.68
osrf-pycommon                        2.0.2
packaging                            21.3

PyQt5                                5.15.6
PyQt5-sip                            12.9.1

qt-dotgraph                          2.2.2
qt-gui                               2.2.2
qt-gui-cpp                           2.2.2
qt-gui-py-common                     2.2.2

CV2 information: - per request

>>> print (cv2.getBuildInformation())

General configuration for OpenCV 4.7.0 =====================================
  Version control:               4.7.0-dirty

  Platform:
    Timestamp:                   2022-12-29T19:08:51Z
    Host:                        Linux 5.15.0-1023-azure x86_64
    CMake:                       3.25.0
    CMake generator:             Unix Makefiles
    CMake build tool:            /bin/gmake
    Configuration:               Release

  CPU/HW features:
    Baseline:                    SSE SSE2 SSE3
      requested:                 SSE3
    Dispatched code generation:  SSE4_1 SSE4_2 FP16 AVX AVX2 AVX512_SKX
      requested:                 SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
      SSE4_1 (16 files):         + SSSE3 SSE4_1
      SSE4_2 (1 files):          + SSSE3 SSE4_1 POPCNT SSE4_2
      FP16 (0 files):            + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
      AVX (4 files):             + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
      AVX2 (32 files):           + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2
      AVX512_SKX (5 files):      + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2 AVX_512F AVX512_COMMON AVX512_SKX

  C/C++:
    Built as dynamic libs?:      NO
    C++ standard:                11
    C++ Compiler:                /opt/rh/devtoolset-10/root/usr/bin/c++  (ver 10.2.1)
    C++ flags (Release):         -Wl,-strip-all   -fsigned-char -W -Wall -Wreturn-type -Wnon-virtual-dtor -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG  -DNDEBUG
    C++ flags (Debug):           -Wl,-strip-all   -fsigned-char -W -Wall -Wreturn-type -Wnon-virtual-dtor -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -g  -O0 -DDEBUG -D_DEBUG
    C Compiler:                  /opt/rh/devtoolset-10/root/usr/bin/cc
    C flags (Release):           -Wl,-strip-all   -fsigned-char -W -Wall -Wreturn-type -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -msse3 -fvisibility=hidden -O3 -DNDEBUG  -DNDEBUG
    C flags (Debug):             -Wl,-strip-all   -fsigned-char -W -Wall -Wreturn-type -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -msse3 -fvisibility=hidden -g  -O0 -DDEBUG -D_DEBUG
    Linker flags (Release):      -Wl,--exclude-libs,libippicv.a -Wl,--exclude-libs,libippiw.a -L/ffmpeg_build/lib  -Wl,--gc-sections -Wl,--as-needed -Wl,--no-undefined  
    Linker flags (Debug):        -Wl,--exclude-libs,libippicv.a -Wl,--exclude-libs,libippiw.a -L/ffmpeg_build/lib  -Wl,--gc-sections -Wl,--as-needed -Wl,--no-undefined  
    ccache:                      YES
    Precompiled headers:         NO
    Extra dependencies:          /lib64/libopenblas.so Qt5::Core Qt5::Gui Qt5::Widgets Qt5::Test Qt5::Concurrent /usr/local/lib/libpng.so /usr/local/lib/libz.so dl m pthread rt
    3rdparty dependencies:       libprotobuf ade ittnotify libjpeg-turbo libwebp libtiff libopenjp2 IlmImf quirc ippiw ippicv

  OpenCV modules:
    To be built:                 calib3d core dnn features2d flann gapi highgui imgcodecs imgproc ml objdetect photo python3 stitching video videoio
    Disabled:                    world
    Disabled by dependency:      -
    Unavailable:                 java python2 ts
    Applications:                -
    Documentation:               NO
    Non-free algorithms:         NO

  GUI:                           QT5
    QT:                          YES (ver 5.15.0 )
      QT OpenGL support:         NO
    GTK+:                        NO
    VTK support:                 NO

  Media I/O: 
    ZLib:                        /usr/local/lib/libz.so (ver 1.2.13)
    JPEG:                        libjpeg-turbo (ver 2.1.3-62)
    WEBP:                        build (ver encoder: 0x020f)
    PNG:                         /usr/local/lib/libpng.so (ver 1.6.37)
    TIFF:                        build (ver 42 - 4.2.0)
    JPEG 2000:                   build (ver 2.4.0)
    OpenEXR:                     build (ver 2.3.0)
    HDR:                         YES
    SUNRASTER:                   YES
    PXM:                         YES
    PFM:                         YES

  Video I/O:
    DC1394:                      NO
    FFMPEG:                      YES
      avcodec:                   YES (59.37.100)
      avformat:                  YES (59.27.100)
      avutil:                    YES (57.28.100)
      swscale:                   YES (6.7.100)
      avresample:                NO
    GStreamer:                   NO
    v4l/v4l2:                    YES (linux/videodev2.h)

  Parallel framework:            pthreads

  Trace:                         YES (with Intel ITT)

  Other third-party libraries:
    Intel IPP:                   2020.0.0 Gold [2020.0.0]
           at:                   /io/_skbuild/linux-x86_64-3.7/cmake-build/3rdparty/ippicv/ippicv_lnx/icv
    Intel IPP IW:                sources (2020.0.0)
              at:                /io/_skbuild/linux-x86_64-3.7/cmake-build/3rdparty/ippicv/ippicv_lnx/iw
    VA:                          NO
    Lapack:                      YES (/lib64/libopenblas.so)
    Eigen:                       NO
    Custom HAL:                  NO
    Protobuf:                    build (3.19.1)

  OpenCL:                        YES (no extra features)
    Include path:                /io/opencv/3rdparty/include/opencl/1.2
    Link libraries:              Dynamic load

  Python 3:
    Interpreter:                 /opt/python/cp37-cp37m/bin/python3.7 (ver 3.7.16)
    Libraries:                   libpython3.7m.a (ver 3.7.16)
    numpy:                       /home/ci/.local/lib/python3.7/site-packages/numpy/core/include (ver 1.17.0)
    install path:                python/cv2/python-3

  Python (for build):            /bin/python2.7

  Java:                          
    ant:                         NO
    JNI:                         NO
    Java wrappers:               NO
    Java tests:                  NO

  Install to:                    /io/_skbuild/linux-x86_64-3.7/cmake-install
-----------------------------------------------------------------

Some bits from the coredump file:

ProblemType: Crash
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sat Feb 11 00:17:46 2023
DistroRelease: Ubuntu 22.04
ExecutablePath: /usr/bin/python3.10
ExecutableTimestamp: 1668442214
ProcCmdline: python3 darknet_video.py
ProcCwd: /home/b/Desktop/darknet
ProcEnviron:
 SHELL=/bin/bash
 LANG=en_US.UTF-8
 TERM=xterm-256color
 LD_LIBRARY_PATH=<set>
 XDG_RUNTIME_DIR=<set>
 PATH=(custom, no user)

ProcStatus:
 Name:  python3
 Umask: 0002
 State: S (sleeping)
 Tgid:  19690
 Ngid:  0
 Pid:   19690
 PPid:  19150
 TracerPid: 0
 Uid:   1000    1000    1000    1000
 Gid:   1000    1000    1000    1000
 FDSize:    64
 Groups:    4 24 27 30 46 122 134 135 1000 
 NStgid:    19690
 NSpid: 19690
 NSpgid:    19690
 NSsid: 19150
 VmPeak:     2199064 kB
 VmSize:     2133528 kB
 VmLck:       16 kB
 VmPin:        0 kB
 VmHWM:   285476 kB
 VmRSS:   285476 kB
 RssAnon:     163192 kB
 RssFile:     122284 kB
 RssShmem:         0 kB
 VmData:      319692 kB
 VmStk:      136 kB
 VmExe:     2768 kB
 VmLib:  1029248 kB
 VmPTE:     1388 kB
 VmSwap:           0 kB
 HugetlbPages:         0 kB
 CoreDumping:   1
 THP_enabled:   1
 Threads:   10
 SigQ:  0/127805
 SigPnd:    0000000000000000
 ShdPnd:    0000000000000000
 SigBlk:    0000000000000000
 SigIgn:    0000000001001000
 SigCgt:    0000000100000002
 CapInh:    0000000000000000
 CapPrm:    0000000000000000
 CapEff:    0000000000000000
 CapBnd:    000001ffffffffff
 CapAmb:    0000000000000000
 NoNewPrivs:    0
 Seccomp:   0
 Seccomp_filters:   0
 Speculation_Store_Bypass:  thread vulnerable
 SpeculationIndirectBranch: conditional enabled
 Cpus_allowed:  ff
 Cpus_allowed_list: 0-7
 Mems_allowed:  00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001
 Mems_allowed_list: 0
 voluntary_ctxt_switches:   734
 nonvoluntary_ctxt_switches:    9
Signal: 11
Uname: Linux 5.15.0-60-generic x86_64
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
CoreDump: base64
 H4sICAAAAAAC/0NvcmVEdW1wAA==

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[ ] The issue is related to the build scripts in this repository, to the pre-built binaries or is a feature request (such as "please enable this additional dependency")
[x] I'm using the latest version of opencv-python