Camera with ffmpeg backend freezes the application

I CameraManagerGlobal: Connecting to camera service
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 QtCamera2: Image processing taking too long. Let's wait 0,5s more java.lang.IllegalStateException: maxImages (10) has already been acquired, call #close before acquiring more.
W ImageReader_JNI: Unable to acquire a buffer item, very likely client tried to acquire more than maxImages buffers
E QtCamera2: Will not wait anymore. Restart camera session. java.lang.IllegalStateException: maxImages (10) has already been acquired, call #close before acquiring more.
W ImageReader_JNI: Unable to acquire a buffer item, very likely client tried to acquire more than maxImages buffers
E QtCamera2: Image processing taking too long. Let's wait 0,5s more java.lang.IllegalStateException: maxImages (10) has already been acquired, call #close before acquiring more.
W ImageReader_JNI: Unable to acquire a buffer item, very likely client tried to acquire more than maxImages buffers
E QtCamera2: Will not wait anymore. Restart camera session. java.lang.IllegalStateException: maxImages (10) has already been acquired, call #close before acquiring more.
W ImageReader_JNI: Unable to acquire a buffer item, very likely client tried to acquire more than maxImages buffers
E QtCamera2: Image processing taking too long. Let's wait 0,5s more java.lang.IllegalStateException: maxImages (10) has already been acquired, call #close before acquiring more.
W ImageReader_JNI: Unable to acquire a buffer item, very likely client tried to acquire more than maxImages buffers
E QtCamera2: Will not wait anymore. Restart camera session. java.lang.IllegalStateException: maxImages (10) has already been acquired, call #close before acquiring more.
W ImageReader_JNI: Unable to acquire a buffer item, very likely client tried to acquire more than maxImages buffers
E QtCamera2: Image processing taking too long. Let's wait 0,5s more java.lang.IllegalStateException: maxImages (10) has already been acquired, call #close before acquiring more.
W ImageReader_JNI: Unable to acquire a buffer item, very likely client tried to acquire more than maxImages buffers
E QtCamera2: Will not wait anymore. Restart camera session. java.lang.IllegalStateException: maxImages (10) has already been acquired, call #close before acquiring more.
W ImageReader_JNI: Unable to acquire a buffer item, very likely client tried to acquire more than maxImages buffers
E QtCamera2: Image processing taking too long. Let's wait 0,5s more java.lang.IllegalStateException: maxImages (10) has already been acquired, call #close before acquiring more.
W ImageReader_JNI: Unable to acquire a buffer item, very likely client tried to acquire more than maxImages buffers
E QtCamera2: Will not wait anymore. Restart camera session. java.lang.IllegalStateException: maxImages (10) has already been acquired, call #close before acquiring more.
W ImageReader_JNI: Unable to acquire a buffer item, very likely client tried to acquire more than maxImages buffers
E QtCamera2: Image processing taking too long. Let's wait 0,5s more java.lang.IllegalStateException: maxImages (10) has already been acquired, call #close before acquiring more.