flutter_qr_mobile_vision: OutOfMemoryException on Oneplus 6

When running (even example) app on Oneplus 6 android 9 (OxygenOS 9.0.2) and starting the camera (doesn’t have to be reading codes) it begins to lag a lot and eventually just kills the app.

flutter doctor:

[✓] Flutter (Channel beta, v0.10.2, on Linux, locale en_US.UTF-8)
[✓] Android toolchain - develop for Android devices (Android SDK 28.0.3)
[!] Android Studio (not installed)
[✓] Connected device (2 available)

! Doctor found issues in 1 category.

Log:

...
W/System.err( 6495): java.lang.OutOfMemoryError: Failed to allocate a 5308432
byte allocation with 1275040 free bytes and 1245KB until OOM, max allowed
footprint 268435456, growth limit 268435456
W/System.err( 6495): 	at
com.github.rmtmckenzie.qrmobilevision.QrDetector2$QrImage.<init>(QrDetector2.jav
a:64)
W/System.err( 6495): 	at
com.github.rmtmckenzie.qrmobilevision.QrCameraC2$2.onImageAvailable(QrCameraC2.j
ava:186)
W/System.err( 6495): 	at
android.media.ImageReader$ListenerHandler.handleMessage(ImageReader.java:800)
W/System.err( 6495): 	at android.os.Handler.dispatchMessage(Handler.java:106)
W/System.err( 6495): 	at android.os.Looper.loop(Looper.java:193)
W/System.err( 6495): 	at
android.app.ActivityThread.main(ActivityThread.java:6863)
W/System.err( 6495): 	at java.lang.reflect.Method.invoke(Native Method)
W/System.err( 6495): 	at
com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:537
)
W/System.err( 6495): 	at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
I/levisionexampl( 6495): Waiting for a blocking GC Alloc
I/levisionexampl( 6495): Clamp target GC heap from 268MB to 256MB
I/levisionexampl( 6495): Alloc concurrent copying GC freed 185(47KB) AllocSpace
objects, 1(10MB) LOS objects, 4% free, 244MB/256MB, paused 107us total 21.757ms
I/levisionexampl( 6495): Starting a blocking GC Alloc
I/levisionexampl( 6495): Waiting for a blocking GC Alloc
I/levisionexampl( 6495): Clamp target GC heap from 268MB to 256MB
I/levisionexampl( 6495): Alloc concurrent copying GC freed 3(63KB) AllocSpace
objects, 0(0B) LOS objects, 4% free, 244MB/256MB, paused 76us total 18.436ms
I/levisionexampl( 6495): Forcing collection of SoftReferences for 20MB
allocation
I/levisionexampl( 6495): WaitForGcToComplete blocked Alloc on HeapTrim for
37.066ms
I/levisionexampl( 6495): Starting a blocking GC Alloc
I/chatty  ( 6495): uid=10119(com.github.rmtmckenzie.qrmobilevisionexample)
identical 1 line
I/levisionexampl( 6495): Starting a blocking GC Alloc
I/levisionexampl( 6495): Waiting for a blocking GC Alloc
I/levisionexampl( 6495): Clamp target GC heap from 278MB to 256MB
I/levisionexampl( 6495): Alloc concurrent copying GC freed 33(47KB) AllocSpace
objects, 0(0B) LOS objects, 0% free, 254MB/256MB, paused 70us total 7.746ms
I/levisionexampl( 6495): Starting a blocking GC Alloc
I/levisionexampl( 6495): Waiting for a blocking GC Alloc
I/levisionexampl( 6495): Clamp target GC heap from 278MB to 256MB
I/levisionexampl( 6495): Alloc concurrent copying GC freed 4(88B) AllocSpace
objects, 0(0B) LOS objects, 0% free, 254MB/256MB, paused 164us total 7.194ms
I/levisionexampl( 6495): Forcing collection of SoftReferences for 5MB allocation
I/levisionexampl( 6495): Starting a blocking GC Alloc
I/levisionexampl( 6495): Waiting for a blocking GC Alloc
I/levisionexampl( 6495): Clamp target GC heap from 278MB to 256MB
I/levisionexampl( 6495): Alloc concurrent copying GC freed 27(32KB) AllocSpace
objects, 0(0B) LOS objects, 0% free, 254MB/256MB, paused 39us total 8.651ms
W/levisionexampl( 6495): Throwing OutOfMemoryError "Failed to allocate a 5308427
byte allocation with 1290488 free bytes and 1260KB until OOM, max allowed
footprint 268435456, growth limit 268435456"
I/levisionexampl( 6495): WaitForGcToComplete blocked Alloc on HeapTrim for
23.964ms
I/levisionexampl( 6495): Starting a blocking GC Alloc
I/levisionexampl( 6495): Waiting for a blocking GC Alloc
I/levisionexampl( 6495): Clamp target GC heap from 278MB to 256MB
I/levisionexampl( 6495): Alloc concurrent copying GC freed 28(47KB) AllocSpace
objects, 0(0B) LOS objects, 0% free, 254MB/256MB, paused 40us total 9.289ms
W/levisionexampl( 6495): Throwing OutOfMemoryError "Failed to allocate a
21233680 byte allocation with 1273736 free bytes and 1243KB until OOM, max
allowed footprint 268435456, growth limit 268435456"
I/levisionexampl( 6495): WaitForGcToComplete blocked Alloc on HeapTrim for
9.974ms
I/levisionexampl( 6495): Starting a blocking GC Alloc
E/AndroidRuntime( 6495): FATAL EXCEPTION: AsyncTask #1
E/AndroidRuntime( 6495): Process: com.github.rmtmckenzie.qrmobilevisionexample,
PID: 6495
E/AndroidRuntime( 6495): java.lang.RuntimeException: An error occurred while
executing doInBackground()
E/AndroidRuntime( 6495): 	at android.os.AsyncTask$3.done(AsyncTask.java:354)
E/AndroidRuntime( 6495): 	at
java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:383)
E/AndroidRuntime( 6495): 	at
java.util.concurrent.FutureTask.setException(FutureTask.java:252)
E/AndroidRuntime( 6495): 	at
java.util.concurrent.FutureTask.run(FutureTask.java:271)
E/AndroidRuntime( 6495): 	at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
E/AndroidRuntime( 6495): 	at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
E/AndroidRuntime( 6495): 	at java.lang.Thread.run(Thread.java:764)
E/AndroidRuntime( 6495): Caused by: java.lang.OutOfMemoryError: Failed to
allocate a 21233680 byte allocation with 1273736 free bytes and 1243KB until
OOM, max allowed footprint 268435456, growth limit 268435456
E/AndroidRuntime( 6495): 	at
com.github.rmtmckenzie.qrmobilevision.QrDetector2$QrImage.toNv21(QrDetector2.jav
a:87)
E/AndroidRuntime( 6495): 	at
com.github.rmtmckenzie.qrmobilevision.QrDetector2$QrImage.access$100(QrDetector2
.java:40)
E/AndroidRuntime( 6495): 	at
com.github.rmtmckenzie.qrmobilevision.QrDetector2$QrTask.doInBackground(QrDetect
or2.java:135)
E/AndroidRuntime( 6495): 	at
com.github.rmtmckenzie.qrmobilevision.QrDetector2$QrTask.doInBackground(QrDetect
or2.java:114)
E/AndroidRuntime( 6495): 	at android.os.AsyncTask$2.call(AsyncTask.java:333)
E/AndroidRuntime( 6495): 	at
java.util.concurrent.FutureTask.run(FutureTask.java:266)
E/AndroidRuntime( 6495): 	... 3 more
I/levisionexampl( 6495): Starting a blocking GC Alloc
W/OPDiagnose( 6495): getService:OPDiagnoseService NULL
I/levisionexampl( 6495): Clamp target GC heap from 278MB to 256MB
I/levisionexampl( 6495): Alloc concurrent copying GC freed 11(46KB) AllocSpace
objects, 0(0B) LOS objects, 0% free, 254MB/256MB, paused 406us total 9.427ms
I/levisionexampl( 6495): Starting a blocking GC Alloc
I/levisionexampl( 6495): Clamp target GC heap from 278MB to 256MB
I/levisionexampl( 6495): Alloc concurrent copying GC freed 333(115KB) AllocSpace
objects, 0(0B) LOS objects, 0% free, 254MB/256MB, paused 37us total 6.910ms
I/levisionexampl( 6495): Forcing collection of SoftReferences for 5MB allocation
I/levisionexampl( 6495): Starting a blocking GC Alloc
D/OSTracker( 6495): OS Event: crash
I/levisionexampl( 6495): Clamp target GC heap from 278MB to 256MB
I/levisionexampl( 6495): Alloc concurrent copying GC freed 117(46KB) AllocSpace
objects, 0(0B) LOS objects, 0% free, 254MB/256MB, paused 82us total 8.570ms
W/levisionexampl( 6495): Throwing OutOfMemoryError "Failed to allocate a 5308432
byte allocation with 1190640 free bytes and 1162KB until OOM, max allowed
footprint 268435456, growth limit 268435456"
W/System.err( 6495): java.lang.OutOfMemoryError: Failed to allocate a 5308432
byte allocation with 1190640 free bytes and 1162KB until OOM, max allowed
footprint 268435456, growth limit 268435456
W/System.err( 6495): 	at
com.github.rmtmckenzie.qrmobilevision.QrDetector2$QrImage.<init>(QrDetector2.jav
a:64)
W/System.err( 6495): 	at
com.github.rmtmckenzie.qrmobilevision.QrCameraC2$2.onImageAvailable(QrCameraC2.j
ava:186)
W/System.err( 6495): 	at
android.media.ImageReader$ListenerHandler.handleMessage(ImageReader.java:800)
W/System.err( 6495): 	at android.os.Handler.dispatchMessage(Handler.java:106)
W/System.err( 6495): 	at android.os.Looper.loop(Looper.java:193)
W/System.err( 6495): 	at
android.app.ActivityThread.main(ActivityThread.java:6863)
W/System.err( 6495): 	at java.lang.reflect.Method.invoke(Native Method)
W/System.err( 6495): 	at
com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:537
)
W/System.err( 6495): 	at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
I/levisionexampl( 6495): Starting a blocking GC Alloc
I/levisionexampl( 6495): Starting a blocking GC Alloc
I/levisionexampl( 6495): Clamp target GC heap from 268MB to 256MB
I/levisionexampl( 6495): Alloc concurrent copying GC freed 419(106KB) AllocSpace
objects, 1(10MB) LOS objects, 4% free, 244MB/256MB, paused 41us total 6.733ms
I/levisionexampl( 6495): Starting a blocking GC Alloc
I/levisionexampl( 6495): Starting a blocking GC Alloc
I/levisionexampl( 6495): Clamp target GC heap from 278MB to 256MB
I/levisionexampl( 6495): Alloc concurrent copying GC freed 9(31KB) AllocSpace
objects, 0(0B) LOS objects, 0% free, 254MB/256MB, paused 40us total 6.973ms
I/levisionexampl( 6495): Starting a blocking GC Alloc
I/levisionexampl( 6495): Clamp target GC heap from 278MB to 256MB
I/levisionexampl( 6495): Alloc concurrent copying GC freed 19(608B) AllocSpace
objects, 0(0B) LOS objects, 0% free, 254MB/256MB, paused 38us total 6.628ms
I/levisionexampl( 6495): Forcing collection of SoftReferences for 5MB allocation
I/levisionexampl( 6495): Starting a blocking GC Alloc
I/Process ( 6495): Sending signal. PID: 6495 SIG: 9