viewcam crashing julia

[anandijain]

not sure if this is specific to my arch or julia version

julia> versioninfo()
Julia Version 1.9.0-beta2
Commit 7daffeecb8c (2022-12-29 07:45 UTC)
Platform Info:
  OS: macOS (arm64-apple-darwin21.3.0)
  CPU: 8 × Apple M1
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-14.0.6 (ORCJIT, apple-m1)
  Threads: 8 on 4 virtual cores
Environment:
  JULIA_NUM_THREADS = 8

julia> using GLMakie

julia> using VideoIO

julia> devs = VideoIO.init_camera_devices()
Ptr{VideoIO.libffmpeg.AVInputFormat} @0x0000000176e68998

julia> logi_name = VideoIO.CAMERA_DEVICES[2]
"Logitech Webcam C930e"

julia> VideoIO.viewcam(logi_name)
1   HIToolbox                           0x00000001a1d005c8 _ZN15MenuBarInstance22EnsureAutoShowObserverEv + 120
2   HIToolbox                           0x00000001a1d00188 _ZN15MenuBarInstance14EnableAutoShowEv + 60
3   HIToolbox                           0x00000001a1ca3310 SetMenuBarObscured + 372
4   HIToolbox                           0x00000001a1ca2ee8 _ZN13HIApplication15HandleActivatedEP14OpaqueEventRefhP15OpaqueWindowPtrh + 172
5   HIToolbox                           0x00000001a1c9cfcc _ZN13HIApplication13EventObserverEjP14OpaqueEventRefPv + 296
6   HIToolbox                           0x00000001a1c63cd0 _NotifyEventLoopObservers + 176
7   AppKit                              0x000000019b9db5b0 -[NSWindow(NSEventRouting) _handleMouseDownEvent:isDelayedEvent:] + 2428
8   AppKit                              0x000000019b965ab8 -[NSWindow(NSEventRouting) _reallySendEvent:isDelayedEvent:] + 1984
9   AppKit                              0x000000019b965124 -[NSWindow(NSEventRouting) sendEvent:] + 284
10  AppKit                              0x000000019b96425c -[NSApplication(NSEvent) sendEvent:] + 1920
11  libglfw.3.3.dylib                   0x00000002851171e8 _glfwPlatformPollEvents + 184
12  nfnZR_2ytpR.dylib                   0x00000002a1b06034 julia_pollevents_11522 + 492
13  ???                                 0x00000002a579c0d0 0x0 + 11366154448
14  ???                                 0x00000002a54ac484 0x0 + 11363075204
15  ???                                 0x000000028ec94170 0x0 + 10985488752
16  libjulia-internal.1.9.dylib         0x0000000102d59190 do_call + 188
17  libjulia-internal.1.9.dylib         0x0000000102d57960 eval_body + 1480
18  libjulia-internal.1.9.dylib         0x0000000102d57fb0 jl_interpret_toplevel_thunk + 264
19  libjulia-internal.1.9.dylib         0x0000000102d6f3f0 jl_toplevel_eval_flex + 4996
20  libjulia-internal.1.9.dylib         0x0000000102d6f244 jl_toplevel_eval_flex + 4568
21  libjulia-internal.1.9.dylib         0x0000000102d6f244 jl_toplevel_eval_flex + 4568
22  libjulia-internal.1.9.dylib         0x0000000102d6fea8 ijl_toplevel_eval_in + 156
23  sys.dylib                           0x000000011a1071bc japi1_eval_user_input_60556 + 936
24  sys.dylib                           0x000000011a18cdb4 julia_YY.1018_39039 + 1296
25  libjulia-internal.1.9.dylib         0x0000000102d4c78c jl_f__call_latest + 76
26  sys.dylib                           0x0000000119a4f374 julia_run_main_repl_37003 + 1248
27  libjulia-internal.1.9.dylib         0x0000000102d99004 true_main + 192
28  libjulia-internal.1.9.dylib         0x0000000102d98ef8 jl_repl_entrypoint + 200
29  julia                               0x000000010275ff6c main + 12
30  dyld                                0x00000001981afe50 start + 2544

[89122] signal (11.2): Segmentation fault: 11
in expression starting at REPL[6]:1
_ZN9libunwind10CFI_ParserINS_17LocalAddressSpaceEE9decodeFDEERS1_mPNS2_8FDE_InfoEPNS2_8CIE_InfoE at /usr/lib/system/libunwind.dylib (unknown line)
Allocations: 40452888 (Pool: 40444549; Big: 8339); GC: 234

[giordano]

Works fine for me on a MacBook M1 like yours, at least with the builtin camera:

julia> using VideoIO, GLMakie

julia> devs = VideoIO.init_camera_devices()
Ptr{VideoIO.libffmpeg.AVInputFormat} @0x000000014a954998

julia> logi_name = VideoIO.CAMERA_DEVICES[1]
"FaceTime HD Camera"

julia> VideoIO.viewcam(logi_name)

julia> versioninfo()
Julia Version 1.10.0-DEV.469
Commit c18909d655* (2023-02-01 14:13 UTC)
Platform Info:
  OS: macOS (arm64-apple-darwin21.6.0)
  CPU: 8 × Apple M1
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-14.0.6 (ORCJIT, apple-m1)
  Threads: 1 on 4 virtual cores

What's "Logitech Webcam C930e"? Is that an external webcam?