Must start a session before appending pixel buffers

[UjjwalNepal]

Stacktrace:

Fatal Exception: NSInternalInconsistencyException 0 CoreFoundation 0x9cb4 __exceptionPreprocess 1 libobjc.A.dylib 0x183d0 objc_exception_throw 2 AVFCore 0xb5024 -[AVFigAssetWriterTrack addPixelBuffer:atPresentationTime:error:] 3 AVFCore 0xb1554 -[AVAssetWriterInputWritingHelper appendPixelBuffer:withPresentationTime:] 4 AVFCore 0xaf1c4 -[AVAssetWriterInput _appendPixelBuffer:withPresentationTime:] 5 AVFCore 0xb415c -[AVAssetWriterInputPixelBufferAdaptor appendPixelBuffer:withPresentationTime:] 6 ARVideoKit 0x20f68 (Missing UUID 5d0b7b7760f9336f9dff47e6fd7e0345) 7 ARVideoKit 0x1a194 (Missing UUID 5d0b7b7760f9336f9dff47e6fd7e0345) 8 ARVideoKit 0x1b1d8 (Missing UUID 5d0b7b7760f9336f9dff47e6fd7e0345) 9 ARVideoKit 0x14a7c (Missing UUID 5d0b7b7760f9336f9dff47e6fd7e0345) 10 libdispatch.dylib 0x3eac _dispatch_client_callout 11 libdispatch.dylib 0x13428 _dispatch_lane_barrier_sync_invoke_and_complete 12 ARVideoKit 0x197c0 (Missing UUID 5d0b7b7760f9336f9dff47e6fd7e0345) 13 ARVideoKit 0x1a68c (Missing UUID 5d0b7b7760f9336f9dff47e6fd7e0345) 14 QuartzCore 0x2946c CA::Display::DisplayLink::dispatch_items(unsigned long long, unsigned long long, unsigned long long) 15 QuartzCore 0x146f28 CA::Display::DisplayLink::dispatch_deferred_display_links(unsigned int) 16 UIKitCore 0x64e4b0 _UIUpdateSequenceRun 17 UIKitCore 0xcb2c8c schedulerStepScheduledMainSection 18 UIKitCore 0xcb21e8 runloopSourceCallback 19 CoreFoundation 0xd3128 CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION 20 CoreFoundation 0xdf7b4 __CFRunLoopDoSource0 21 CoreFoundation 0x645e8 __CFRunLoopDoSources0 22 CoreFoundation 0x7a0d4 __CFRunLoopRun 23 CoreFoundation 0x7f3ec CFRunLoopRunSpecific 24 GraphicsServices 0x135c GSEventRunModal 25 UIKitCore 0x39d6e8 -[UIApplication _run] 26 UIKitCore 0x39d34c UIApplicationMain 27 Bloopar-Debug 0x7f94 main + 19 (AppDelegate.swift:19) 28 ??? 0x1b0ff6dec (Missing)

ARVideoKit version: 1.51 Xcode version: 14.3.1

Ofc the behavior is not obvious, this occurs when adding more complex objects (also inconsistent).

The library is called as documented and works well without memory leaks.