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  1. Qt
  2. QTBUG-116526

Android camera crash in example project

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    • Android
    • c5e5d6191 (dev), 2ccb6a50f (6.6), 507c3908b (6.5)
    • 2023wk36FOQtforAndroid

    Description

      Hi all,

       

      I was testing how the camera behaves on the latest 6.5.2 version and found a crash. The app crashes when you have the camera loaded and you minimise the app.

       

      You can reproduce it with the declarative camera example. By the way, there are quite a few issues with the project, mainly QML/JS undefines.

       

      What I see in the logs:

      W ImageReader_JNI: Unable to acquire a buffer item, very likely client tried to acquire more than maxImages buffers
      W ImageReader_JNI: Unable to acquire a buffer item, very likely client tried to acquire more than maxImages buffers
      E AndroidRuntime: FATAL EXCEPTION: CameraBackground
      E AndroidRuntime: Process: org.qtproject.example.declarative_camera, PID: 24464
      E AndroidRuntime: java.lang.IllegalStateException: maxImages (10) has already been acquired, call #close before acquiring more.
      E AndroidRuntime:     at android.media.ImageReader.acquireNextImage(ImageReader.java:502)
      E AndroidRuntime:     at android.media.ImageReader.acquireLatestImage(ImageReader.java:386)
      E AndroidRuntime:     at org.qtproject.qt.android.multimedia.QtCamera2$4.onImageAvailable(QtCamera2.java:157)
      E AndroidRuntime:     at android.media.ImageReader$ListenerHandler.handleMessage(ImageReader.java:800)
      E AndroidRuntime:     at android.os.Handler.dispatchMessage(Handler.java:106)
      E AndroidRuntime:     at android.os.Looper.loop(Looper.java:216)
      E AndroidRuntime:     at android.os.HandlerThread.run(HandlerThread.java:65) 

      My target SDK is 33. I reproduced the same crash on Android 13 (Samsung) and Android 9 (Samsung).

       

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              bartlomiejmoskal Bartlomiej Moskal
              tomasmizera Tomas Mizera
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