Conflict with Qt Framework on macOS

grabusr commented 3 years ago

Hi

When I use OpenPnp capture for capturing camera on some Mac laptops I receive the crash in Qt Event loop, sometimes even in provided example in repository. Crash happen in the Qt loop, after creating context by using Cap_createContext(). Usually this is a information about double release of Cococa Event that causes the crash in debug mode. My Setup: MacBook Pro 2019, i7-8557U, macOS Catalina

trcwm commented 3 years ago

I don't have a Mac at the moment to debug this issue. @vonnieda have you seen this behavior in your setup?

vonnieda commented 2 years ago

I'm not able to reproduce. If it's still happening, please try running in a debugger and see if you can capture the error. Here's an example below:

DYLD_LIBRARY_PATH=../build lldb ./QtCaptureTest
(lldb) target create "./QtCaptureTest"
Current executable set to/QtCaptureTest' (x86_64).

Process 67202 stopped
Target 0: (QtCaptureTest) stopped.

(lldb) bt
* thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
  * frame #0: 0x00007ff80155daba libsystem_kernel.dylib`mach_msg_trap + 10
    frame #15: 0x000000010002d4fe dyld`start + 462

(lldb) q
Quitting LLDB will kill one or more processes. Do you really want to proceed: [Y/n] y
>

vonnieda commented 2 years ago

Closing stale issue. Please see comment above and reopen if it's still happening.

openpnp / openpnp-capture

Conflict with Qt Framework on macOS #44