(lldb) bt all
* thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
  * frame #0: 0x00000001c500077c libsystem_kernel.dylib`__psynch_mutexwait + 8
    frame #1: 0x00000001dff50c48 libsystem_pthread.dylib`_pthread_mutex_firstfit_lock_wait + 88
    frame #2: 0x00000001dff50b9c libsystem_pthread.dylib`_pthread_mutex_firstfit_lock_slow$VARIANT$armv81 + 212
    frame #3: 0x0000000103437da0 VLC for iOS`vlc_mutex_lock + 24
    frame #4: 0x0000000103378470 VLC for iOS`lock_input + 28
    frame #5: 0x0000000103378410 VLC for iOS`libvlc_get_input_thread + 88
    frame #6: 0x0000000103372634 VLC for iOS`libvlc_video_get_track_count + 24
    frame #7: 0x000000010335f5ec VLC for iOS`-[VLCMediaPlayer numberOfVideoTracks](self=0x0000000283c610e0, _cmd="numberOfVideoTracks") at VLCMediaPlayer.m:440:12
    frame #8: 0x00000001028d91fc VLC for iOS`-[VLCMetaData checkIsAudioOnly:](self=0x0000000282e54cd0, _cmd="checkIsAudioOnly:", mediaPlayer=0x0000000283c610e0) at VLCMetadata.m:104:32
    frame #9: 0x00000001028d8bd4 VLC for iOS`-[VLCMetaData updateMetadataFromMedia:mediaPlayer:](self=0x0000000282e54cd0, _cmd="updateMetadataFromMedia:mediaPlayer:", media=0x00000002829194a0, mediaPlayer=0x0000000283c610e0) at VLCMetadata.m:59:5
    frame #10: 0x00000001028b9c50 VLC for iOS`__44-[VLCPlaybackService setNeedsMetadataUpdate]_block_invoke(.block_descriptor=0x00000002803a37b0) at VLCPlaybackService.m:1168:13
    frame #11: 0x000000010847bdb8 libdispatch.dylib`_dispatch_call_block_and_release + 24
    frame #12: 0x000000010847d5fc libdispatch.dylib`_dispatch_client_callout + 16
    frame #13: 0x000000010848ba6c libdispatch.dylib`_dispatch_main_queue_callback_4CF + 972
    frame #14: 0x000000019a680c30 CoreFoundation`__CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12
    frame #15: 0x000000019a67b0e8 CoreFoundation`__CFRunLoopRun + 2480
    frame #16: 0x000000019a67a200 CoreFoundation`CFRunLoopRunSpecific + 572
    frame #17: 0x00000001b0775598 GraphicsServices`GSEventRunModal + 160
    frame #18: 0x000000019cf40004 UIKitCore`-[UIApplication _run] + 1052
    frame #19: 0x000000019cf455d8 UIKitCore`UIApplicationMain + 164
    frame #20: 0x000000010290177c VLC for iOS`main(argc=1, argv=0x000000016d573740) at main.m:20:16
    frame #21: 0x000000019a359598 libdyld.dylib`start + 4
  thread #3, name = 'gputools.smt_poll.0x280d6cd60'
    frame #0: 0x00000001c5000d00 libsystem_kernel.dylib`__semwait_signal + 8
    frame #1: 0x00000001a3348714 libsystem_c.dylib`nanosleep + 212
    frame #2: 0x00000001a33485ec libsystem_c.dylib`usleep + 64
    frame #3: 0x000000010862b754 GPUToolsCore`smt_poll_thread_entry(void*) + 144
    frame #4: 0x00000001dff52b70 libsystem_pthread.dylib`_pthread_start + 288
  thread #4, name = 'gputools.smt_poll.0x280d40880'
    frame #0: 0x00000001c5000d00 libsystem_kernel.dylib`__semwait_signal + 8
    frame #1: 0x00000001a3348714 libsystem_c.dylib`nanosleep + 212
    frame #2: 0x00000001a33485ec libsystem_c.dylib`usleep + 64
    frame #3: 0x00000001083c5644 libMTLCapture.dylib`___lldb_unnamed_symbol2216$$libMTLCapture.dylib + 104
    frame #4: 0x00000001dff52b70 libsystem_pthread.dylib`_pthread_start + 288
  thread #8, name = 'com.apple.uikit.eventfetch-thread'
    frame #0: 0x00000001c4fdd8c4 libsystem_kernel.dylib`mach_msg_trap + 8
    frame #1: 0x00000001c4fdccc8 libsystem_kernel.dylib`mach_msg + 72
    frame #2: 0x000000019a68074c CoreFoundation`__CFRunLoopServiceMachPort + 376
    frame #3: 0x000000019a67abd0 CoreFoundation`__CFRunLoopRun + 1176
    frame #4: 0x000000019a67a200 CoreFoundation`CFRunLoopRunSpecific + 572
    frame #5: 0x000000019b884278 Foundation`-[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 228
    frame #6: 0x000000019b884158 Foundation`-[NSRunLoop(NSRunLoop) runUntilDate:] + 88
    frame #7: 0x000000019cfeb9fc UIKitCore`-[UIEventFetcher threadMain] + 504
    frame #8: 0x000000019b9e0c48 Foundation`__NSThread__start__ + 848
    frame #9: 0x00000001dff52b70 libsystem_pthread.dylib`_pthread_start + 288
  thread #12
    frame #0: 0x00000001c500072c libsystem_kernel.dylib`__psynch_cvwait + 8
    frame #1: 0x00000001dff4fc88 libsystem_pthread.dylib`_pthread_cond_wait$VARIANT$armv81 + 1180
    frame #2: 0x00000001adfc3e0c libc++.1.dylib`std::__1::condition_variable::wait(std::__1::unique_lock<std::__1::mutex>&) + 24
    frame #3: 0x0000000104c387c4 VLC for iOS`medialibrary::ModificationNotifier::run() [inlined] void std::__1::condition_variable::wait<medialibrary::ModificationNotifier::run()::$_1>(__pred=<unavailable>)::$_1) at __mutex_base:375:9 [opt]
    frame #4: 0x0000000104c387a4 VLC for iOS`medialibrary::ModificationNotifier::run(this=0x000000010881fdc0) at ModificationsNotifier.cpp:215 [opt]
    frame #5: 0x0000000104c3d15c VLC for iOS`void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (medialibrary::ModificationNotifier::*)(), medialibrary::ModificationNotifier*> >(void*) [inlined] decltype(__a0=<unavailable>)).*fp()) std::__1::__invoke<void (medialibrary::ModificationNotifier::*)(), medialibrary::ModificationNotifier*, void>(void (medialibrary::ModificationNotifier::*&&)(), medialibrary::ModificationNotifier*&&) at type_traits:4280:1 [opt]
    frame #6: 0x0000000104c3d144 VLC for iOS`void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (medialibrary::ModificationNotifier::*)(), medialibrary::ModificationNotifier*> >(void*) [inlined] void std::__1::__thread_execute<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (medialibrary::ModificationNotifier::*)(), medialibrary::ModificationNotifier*, 2ul>(__t=<unavailable>)(), medialibrary::ModificationNotifier*>&, std::__1::__tuple_indices<2ul>) at thread:342 [opt]
    frame #7: 0x0000000104c3d144 VLC for iOS`void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (medialibrary::ModificationNotifier::*)(), medialibrary::ModificationNotifier*> >(__vp=0x0000000280d25420) at thread:352 [opt]
    frame #8: 0x00000001dff52b70 libsystem_pthread.dylib`_pthread_start + 288
  thread #13
    frame #0: 0x00000001c500072c libsystem_kernel.dylib`__psynch_cvwait + 8
    frame #1: 0x00000001dff4fc88 libsystem_pthread.dylib`_pthread_cond_wait$VARIANT$armv81 + 1180
    frame #2: 0x00000001adfc3e0c libc++.1.dylib`std::__1::condition_variable::wait(std::__1::unique_lock<std::__1::mutex>&) + 24
    frame #3: 0x0000000104beba10 VLC for iOS`medialibrary::DiscovererWorker::run() [inlined] void std::__1::condition_variable::wait<medialibrary::DiscovererWorker::run()::$_2>(this=<unavailable>, __lk=<unavailable>, __pred=<unavailable>)::$_2) at __mutex_base:375:9 [opt]
    frame #4: 0x0000000104beba04 VLC for iOS`medialibrary::DiscovererWorker::run(this=0x0000000283875500) at DiscovererWorker.cpp:375 [opt]
    frame #5: 0x0000000104bee6c8 VLC for iOS`void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (medialibrary::DiscovererWorker::*)(), medialibrary::DiscovererWorker*> >(void*) [inlined] decltype(__a0=<unavailable>)).*fp()) std::__1::__invoke<void (medialibrary::DiscovererWorker::*)(), medialibrary::DiscovererWorker*, void>(void (medialibrary::DiscovererWorker::*&&)(), medialibrary::DiscovererWorker*&&) at type_traits:4280:1 [opt]
    frame #6: 0x0000000104bee6b0 VLC for iOS`void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (medialibrary::DiscovererWorker::*)(), medialibrary::DiscovererWorker*> >(void*) [inlined] void std::__1::__thread_execute<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (medialibrary::DiscovererWorker::*)(), medialibrary::DiscovererWorker*, 2ul>(__t=<unavailable>)(), medialibrary::DiscovererWorker*>&, std::__1::__tuple_indices<2ul>) at thread:342 [opt]
    frame #7: 0x0000000104bee6b0 VLC for iOS`void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (medialibrary::DiscovererWorker::*)(), medialibrary::DiscovererWorker*> >(__vp=0x0000000280d21680) at thread:352 [opt]
    frame #8: 0x00000001dff52b70 libsystem_pthread.dylib`_pthread_start + 288
  thread #14, name = 'AVAudioSession Notify Thread'
    frame #0: 0x00000001c4fdd8c4 libsystem_kernel.dylib`mach_msg_trap + 8
    frame #1: 0x00000001c4fdccc8 libsystem_kernel.dylib`mach_msg + 72
    frame #2: 0x000000019a68074c CoreFoundation`__CFRunLoopServiceMachPort + 376
    frame #3: 0x000000019a67abd0 CoreFoundation`__CFRunLoopRun + 1176
    frame #4: 0x000000019a67a200 CoreFoundation`CFRunLoopRunSpecific + 572
    frame #5: 0x00000001a1b79158 AudioSession`GenericRunLoopThread::Entry(void*) + 156
    frame #6: 0x00000001a1b7b0b8 AudioSession`CAPThread::Entry(CAPThread*) + 88
    frame #7: 0x00000001dff52b70 libsystem_pthread.dylib`_pthread_start + 288
  thread #15
    frame #0: 0x00000001c50013a0 libsystem_kernel.dylib`__ulock_wait + 8
    frame #1: 0x000000010847e0a0 libdispatch.dylib`_dlock_wait + 52
    frame #2: 0x000000010847de7c libdispatch.dylib`_dispatch_thread_event_wait_slow + 52
    frame #3: 0x000000010848cb6c libdispatch.dylib`__DISPATCH_WAIT_FOR_QUEUE__ + 340
    frame #4: 0x000000010848c598 libdispatch.dylib`_dispatch_sync_f_slow + 176
    frame #5: 0x00000001033508f0 VLC for iOS`-[VLCEventManager startEventLoop](self=0x0000000283c6b340, _cmd="startEventLoop") at VLCEventManager.m:217:17
    frame #6: 0x0000000103350014 VLC for iOS`EventDispatcherMainLoop(user_data=0x0000000283c6b340) at VLCEventManager.m:94:5
    frame #7: 0x00000001dff52b70 libsystem_pthread.dylib`_pthread_start + 288
  thread #16
    frame #0: 0x00000001c4fdd8c4 libsystem_kernel.dylib`mach_msg_trap + 8
    frame #1: 0x00000001c4fdccc8 libsystem_kernel.dylib`mach_msg + 72
    frame #2: 0x000000019a68074c CoreFoundation`__CFRunLoopServiceMachPort + 376
    frame #3: 0x000000019a67abd0 CoreFoundation`__CFRunLoopRun + 1176
    frame #4: 0x000000019a67a200 CoreFoundation`CFRunLoopRunSpecific + 572
    frame #5: 0x000000019b884278 Foundation`-[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 228
    frame #6: 0x000000019b8b53e4 Foundation`-[NSRunLoop(NSRunLoop) run] + 88
    frame #7: 0x0000000102baa158 VLC for iOS`+[HTTPServer bonjourThread](self=HTTPServer, _cmd="bonjourThread") at HTTPServer.m:769:3
    frame #8: 0x000000019b9e0c48 Foundation`__NSThread__start__ + 848
    frame #9: 0x00000001dff52b70 libsystem_pthread.dylib`_pthread_start + 288
  thread #17
    frame #0: 0x00000001c500072c libsystem_kernel.dylib`__psynch_cvwait + 8
    frame #1: 0x00000001dff4fc88 libsystem_pthread.dylib`_pthread_cond_wait$VARIANT$armv81 + 1180
    frame #2: 0x00000001adfc3e0c libc++.1.dylib`std::__1::condition_variable::wait(std::__1::unique_lock<std::__1::mutex>&) + 24
    frame #3: 0x0000000104c387c4 VLC for iOS`medialibrary::ModificationNotifier::run() [inlined] void std::__1::condition_variable::wait<medialibrary::ModificationNotifier::run()::$_1>(__pred=<unavailable>)::$_1) at __mutex_base:375:9 [opt]
    frame #4: 0x0000000104c387a4 VLC for iOS`medialibrary::ModificationNotifier::run(this=0x0000000108923280) at ModificationsNotifier.cpp:215 [opt]
    frame #5: 0x0000000104c3d15c VLC for iOS`void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (medialibrary::ModificationNotifier::*)(), medialibrary::ModificationNotifier*> >(void*) [inlined] decltype(__a0=<unavailable>)).*fp()) std::__1::__invoke<void (medialibrary::ModificationNotifier::*)(), medialibrary::ModificationNotifier*, void>(void (medialibrary::ModificationNotifier::*&&)(), medialibrary::ModificationNotifier*&&) at type_traits:4280:1 [opt]
    frame #6: 0x0000000104c3d144 VLC for iOS`void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (medialibrary::ModificationNotifier::*)(), medialibrary::ModificationNotifier*> >(void*) [inlined] void std::__1::__thread_execute<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (medialibrary::ModificationNotifier::*)(), medialibrary::ModificationNotifier*, 2ul>(__t=<unavailable>)(), medialibrary::ModificationNotifier*>&, std::__1::__tuple_indices<2ul>) at thread:342 [opt]
    frame #7: 0x0000000104c3d144 VLC for iOS`void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (medialibrary::ModificationNotifier::*)(), medialibrary::ModificationNotifier*> >(__vp=0x0000000280d04320) at thread:352 [opt]
    frame #8: 0x00000001dff52b70 libsystem_pthread.dylib`_pthread_start + 288
  thread #18
    frame #0: 0x00000001c500072c libsystem_kernel.dylib`__psynch_cvwait + 8
    frame #1: 0x00000001dff4fc88 libsystem_pthread.dylib`_pthread_cond_wait$VARIANT$armv81 + 1180
    frame #2: 0x00000001adfc3e0c libc++.1.dylib`std::__1::condition_variable::wait(std::__1::unique_lock<std::__1::mutex>&) + 24
    frame #3: 0x0000000104beba10 VLC for iOS`medialibrary::DiscovererWorker::run() [inlined] void std::__1::condition_variable::wait<medialibrary::DiscovererWorker::run()::$_2>(this=<unavailable>, __lk=<unavailable>, __pred=<unavailable>)::$_2) at __mutex_base:375:9 [opt]
    frame #4: 0x0000000104beba04 VLC for iOS`medialibrary::DiscovererWorker::run(this=0x0000000283873b40) at DiscovererWorker.cpp:375 [opt]
    frame #5: 0x0000000104bee6c8 VLC for iOS`void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (medialibrary::DiscovererWorker::*)(), medialibrary::DiscovererWorker*> >(void*) [inlined] decltype(__a0=<unavailable>)).*fp()) std::__1::__invoke<void (medialibrary::DiscovererWorker::*)(), medialibrary::DiscovererWorker*, void>(void (medialibrary::DiscovererWorker::*&&)(), medialibrary::DiscovererWorker*&&) at type_traits:4280:1 [opt]
    frame #6: 0x0000000104bee6b0 VLC for iOS`void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (medialibrary::DiscovererWorker::*)(), medialibrary::DiscovererWorker*> >(void*) [inlined] void std::__1::__thread_execute<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (medialibrary::DiscovererWorker::*)(), medialibrary::DiscovererWorker*, 2ul>(__t=<unavailable>)(), medialibrary::DiscovererWorker*>&, std::__1::__tuple_indices<2ul>) at thread:342 [opt]
    frame #7: 0x0000000104bee6b0 VLC for iOS`void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (medialibrary::DiscovererWorker::*)(), medialibrary::DiscovererWorker*> >(__vp=0x0000000280d00680) at thread:352 [opt]
    frame #8: 0x00000001dff52b70 libsystem_pthread.dylib`_pthread_start + 288
  thread #19, name = 'com.apple.NSURLConnectionLoader'
    frame #0: 0x00000001c4fdd8c4 libsystem_kernel.dylib`mach_msg_trap + 8
    frame #1: 0x00000001c4fdccc8 libsystem_kernel.dylib`mach_msg + 72
    frame #2: 0x000000019a68074c CoreFoundation`__CFRunLoopServiceMachPort + 376
    frame #3: 0x000000019a67abd0 CoreFoundation`__CFRunLoopRun + 1176
    frame #4: 0x000000019a67a200 CoreFoundation`CFRunLoopRunSpecific + 572
    frame #5: 0x000000019af049a4 CFNetwork`___lldb_unnamed_symbol11120$$CFNetwork + 552
    frame #6: 0x000000019b9e0c48 Foundation`__NSThread__start__ + 848
    frame #7: 0x00000001dff52b70 libsystem_pthread.dylib`_pthread_start + 288
  thread #20, queue = 'libvlcQueue'
    frame #0: 0x00000001c50013a0 libsystem_kernel.dylib`__ulock_wait + 8
    frame #1: 0x00000001dff55664 libsystem_pthread.dylib`_pthread_join + 592
    frame #2: 0x0000000103438ba8 VLC for iOS`vlc_join + 32
    frame #3: 0x00000001033d530c VLC for iOS`input_Close + 60
    frame #4: 0x00000001033799a8 VLC for iOS`release_input_thread + 268
    frame #5: 0x00000001033797d0 VLC for iOS`libvlc_media_player_set_media + 52
    frame #6: 0x000000010337eef4 VLC for iOS`set_current_playing_item + 140
    frame #7: 0x000000010337ed88 VLC for iOS`libvlc_media_list_player_play_item_at_index + 68
    frame #8: 0x00000001033527e0 VLC for iOS`__39-[VLCMediaListPlayer playItemAtNumber:]_block_invoke(.block_descriptor=0x00000002803a3ea0) at VLCMediaListPlayer.m:250:9
    frame #9: 0x000000010847bdb8 libdispatch.dylib`_dispatch_call_block_and_release + 24
    frame #10: 0x000000010847d5fc libdispatch.dylib`_dispatch_client_callout + 16
    frame #11: 0x0000000108484680 libdispatch.dylib`_dispatch_lane_serial_drain + 748
    frame #12: 0x0000000108485308 libdispatch.dylib`_dispatch_lane_invoke + 452
    frame #13: 0x0000000108490b34 libdispatch.dylib`_dispatch_workloop_worker_thread + 1456
    frame #14: 0x00000001dff545a4 libsystem_pthread.dylib`_pthread_wqthread + 272
  thread #23
    frame #0: 0x00000001c500072c libsystem_kernel.dylib`__psynch_cvwait + 8
    frame #1: 0x00000001dff4fc88 libsystem_pthread.dylib`_pthread_cond_wait$VARIANT$armv81 + 1180
    frame #2: 0x0000000103438114 VLC for iOS`vlc_cond_wait + 32
    frame #3: 0x000000010337e548 VLC for iOS`playlist_thread + 124
    frame #4: 0x00000001dff52b70 libsystem_pthread.dylib`_pthread_start + 288
  thread #35
    frame #0: 0x00000001c500072c libsystem_kernel.dylib`__psynch_cvwait + 8
    frame #1: 0x00000001dff4fc88 libsystem_pthread.dylib`_pthread_cond_wait$VARIANT$armv81 + 1180
    frame #2: 0x000000019b8b3454 Foundation`-[NSObject(NSThreadPerformAdditions) performSelector:onThread:withObject:waitUntilDone:modes:] + 656
    frame #3: 0x000000019b8b31ac Foundation`-[NSObject(NSThreadPerformAdditions) performSelectorOnMainThread:withObject:waitUntilDone:] + 132
    frame #4: 0x00000001044ca374 VLC for iOS`Open + 388
    frame #5: 0x00000001033a234c VLC for iOS`generic_start + 84
    frame #6: 0x00000001033a21b0 VLC for iOS`module_load + 132
    frame #7: 0x00000001033a1d80 VLC for iOS`vlc_module_load + 904
    frame #8: 0x00000001033a22ec VLC for iOS`module_need + 80
    frame #9: 0x00000001033f62cc VLC for iOS`vout_display_New + 360
    frame #10: 0x00000001033f4644 VLC for iOS`DisplayNew + 652
    frame #11: 0x00000001033f43ac VLC for iOS`vout_NewDisplay + 80
    frame #12: 0x0000000103405524 VLC for iOS`vout_OpenWrapper + 260
    frame #13: 0x00000001033faac0 VLC for iOS`ThreadStart + 352
    frame #14: 0x00000001033fb014 VLC for iOS`ThreadReinit + 484
    frame #15: 0x00000001033fa278 VLC for iOS`ThreadControl + 176
    frame #16: 0x00000001033f9ff0 VLC for iOS`Thread + 252
    frame #17: 0x00000001dff52b70 libsystem_pthread.dylib`_pthread_start + 288
  thread #37
    frame #0: 0x00000001dff5786c libsystem_pthread.dylib`start_wqthread
  thread #43
    frame #0: 0x00000001c500072c libsystem_kernel.dylib`__psynch_cvwait + 8
    frame #1: 0x00000001dff4fc88 libsystem_pthread.dylib`_pthread_cond_wait$VARIANT$armv81 + 1180
    frame #2: 0x00000001adfc3e0c libc++.1.dylib`std::__1::condition_variable::wait(std::__1::unique_lock<std::__1::mutex>&) + 24
    frame #3: 0x0000000104c1b3b8 VLC for iOS`medialibrary::ThumbnailerWorker::run() [inlined] void std::__1::condition_variable::wait<medialibrary::ThumbnailerWorker::run()::$_0>(__pred=<unavailable>)::$_0) at __mutex_base:375:9 [opt]
    frame #4: 0x0000000104c1b3ac VLC for iOS`medialibrary::ThumbnailerWorker::run(this=0x0000000283264690) at ThumbnailerWorker.cpp:111 [opt]
    frame #5: 0x0000000104c1cd0c VLC for iOS`void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (medialibrary::ThumbnailerWorker::*)(), medialibrary::ThumbnailerWorker*> >(void*) [inlined] decltype(__a0=<unavailable>)).*fp()) std::__1::__invoke<void (medialibrary::ThumbnailerWorker::*)(), medialibrary::ThumbnailerWorker*, void>(void (medialibrary::ThumbnailerWorker::*&&)(), medialibrary::ThumbnailerWorker*&&) at type_traits:4280:1 [opt]
    frame #6: 0x0000000104c1ccf4 VLC for iOS`void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (medialibrary::ThumbnailerWorker::*)(), medialibrary::ThumbnailerWorker*> >(void*) [inlined] void std::__1::__thread_execute<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (medialibrary::ThumbnailerWorker::*)(), medialibrary::ThumbnailerWorker*, 2ul>(__t=<unavailable>)(), medialibrary::ThumbnailerWorker*>&, std::__1::__tuple_indices<2ul>) at thread:342 [opt]
    frame #7: 0x0000000104c1ccf4 VLC for iOS`void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (medialibrary::ThumbnailerWorker::*)(), medialibrary::ThumbnailerWorker*> >(__vp=0x0000000280dcc7c0) at thread:352 [opt]
    frame #8: 0x00000001dff52b70 libsystem_pthread.dylib`_pthread_start + 288
  thread #61, name = 'AURemoteIO::IOThread'
    frame #0: 0x00000001c4fdd8c4 libsystem_kernel.dylib`mach_msg_trap + 8
    frame #1: 0x00000001c4fdccc8 libsystem_kernel.dylib`mach_msg + 72
    frame #2: 0x00000001c8ebc930 libEmbeddedSystemAUs.dylib`void* caulk::thread_proxy<std::__1::tuple<caulk::thread::attributes, AURemoteIO::IOThread::IOThread(AURemoteIO&, caulk::thread::attributes const&, caulk::mach::os_workgroup const&)::'lambda'(), std::__1::tuple<> > >(void*) + 576
    frame #3: 0x00000001dff52b70 libsystem_pthread.dylib`_pthread_start + 288
  thread #63
    frame #0: 0x00000001c50013a0 libsystem_kernel.dylib`__ulock_wait + 8
    frame #1: 0x00000001dff55664 libsystem_pthread.dylib`_pthread_join + 592
    frame #2: 0x0000000103438ba8 VLC for iOS`vlc_join + 32
    frame #3: 0x00000001033bc9a0 VLC for iOS`input_DecoderDelete + 188
    frame #4: 0x00000001033c830c VLC for iOS`EsDestroyDecoder + 48
    frame #5: 0x00000001033c8010 VLC for iOS`EsUnselect + 272
    frame #6: 0x00000001033ca0ac VLC for iOS`EsOutControlLocked + 1840
    frame #7: 0x00000001033c4c08 VLC for iOS`EsOutControl + 64
    frame #8: 0x00000001033d16e0 VLC for iOS`es_out_vaControl + 48
    frame #9: 0x00000001033d1198 VLC for iOS`es_out_Control + 64
    frame #10: 0x00000001033d0df0 VLC for iOS`CmdExecuteControl + 448
    frame #11: 0x00000001033d0160 VLC for iOS`ControlLocked + 592
    frame #12: 0x00000001033ce8c0 VLC for iOS`Control + 72
    frame #13: 0x00000001033d8048 VLC for iOS`es_out_vaControl + 48
    frame #14: 0x00000001033d7fe0 VLC for iOS`es_out_Control + 64
    frame #15: 0x00000001033dd2d8 VLC for iOS`es_out_SetMode + 48
    frame #16: 0x00000001033d49c0 VLC for iOS`End + 68
    frame #17: 0x00000001033d4fd0 VLC for iOS`Run + 136
    frame #18: 0x00000001dff52b70 libsystem_pthread.dylib`_pthread_start + 288
  thread #64
    frame #0: 0x00000001c500072c libsystem_kernel.dylib`__psynch_cvwait + 8
    frame #1: 0x00000001dff4fc88 libsystem_pthread.dylib`_pthread_cond_wait$VARIANT$armv81 + 1180
    frame #2: 0x0000000103438114 VLC for iOS`vlc_cond_wait + 32
    frame #3: 0x00000001033f1b0c VLC for iOS`vout_control_WaitEmpty + 112
    frame #4: 0x00000001033f830c VLC for iOS`vout_Request + 348
    frame #5: 0x00000001033dfca8 VLC for iOS`RequestVout + 728
    frame #6: 0x00000001033df9b0 VLC for iOS`input_resource_RequestVout + 80
    frame #7: 0x00000001033bef28 VLC for iOS`vout_update_format + 1332
    frame #8: 0x0000000104823e50 VLC for iOS`decoder_UpdateVideoFormat + 132
    frame #9: 0x0000000104824060 VLC for iOS`lavc_UpdateVideoFormat + 496
    frame #10: 0x0000000104822008 VLC for iOS`lavc_GetFrame + 256
    frame #11: 0x0000000103da0f1c VLC for iOS`ff_get_buffer [inlined] get_buffer_internal(avctx=0x00000001091fc000, frame=<unavailable>, flags=<unavailable>) at decode.c:1863:11 [opt]
    frame #12: 0x0000000103da0e54 VLC for iOS`ff_get_buffer(avctx=0x00000001091fc000, frame=0x00000001088e0190, flags=1) at decode.c:1888 [opt]
    frame #13: 0x00000001041558e4 VLC for iOS`ff_thread_get_buffer [inlined] thread_get_buffer_internal(avctx=0x00000001091fc000, f=0x000000011b294578, flags=1) at pthread_frame.c:919:15 [opt]
    frame #14: 0x0000000104155850 VLC for iOS`ff_thread_get_buffer(avctx=0x00000001091fc000, f=0x000000011b294578, flags=1) at pthread_frame.c:973 [opt]
    frame #15: 0x0000000103e875c8 VLC for iOS`h264_frame_start [inlined] alloc_picture(h=0x000000011b294000, pic=0x000000011b294570) at h264_slice.c:195:11 [opt]
    frame #16: 0x0000000103e875a0 VLC for iOS`h264_frame_start(h=0x000000011b294000) at h264_slice.c:498 [opt]
    frame #17: 0x0000000103e84194 VLC for iOS`ff_h264_queue_decode_slice at h264_slice.c:1506:15 [opt]
    frame #18: 0x0000000103e83928 VLC for iOS`ff_h264_queue_decode_slice(h=0x000000011b294000, nal=<unavailable>) at h264_slice.c:2114 [opt]
    frame #19: 0x0000000103e8c4e4 VLC for iOS`h264_decode_frame at h264dec.c:673:24 [opt]
    frame #20: 0x0000000103e8c028 VLC for iOS`h264_decode_frame(avctx=<unavailable>, data=<unavailable>, got_frame=<unavailable>, avpkt=<unavailable>) at h264dec.c:998 [opt]
    frame #21: 0x0000000104155518 VLC for iOS`frame_worker_thread(arg=0x00000001091f7200) at pthread_frame.c:201:21 [opt]
    frame #22: 0x00000001dff52b70 libsystem_pthread.dylib`_pthread_start + 288
  thread #65
    frame #0: 0x00000001c500072c libsystem_kernel.dylib`__psynch_cvwait + 8
    frame #1: 0x00000001dff4fc88 libsystem_pthread.dylib`_pthread_cond_wait$VARIANT$armv81 + 1180
    frame #2: 0x00000001041555d0 VLC for iOS`frame_worker_thread(arg=0x00000001091f73e0) at pthread_frame.c:177:13 [opt]
    frame #3: 0x00000001dff52b70 libsystem_pthread.dylib`_pthread_start + 288
  thread #66
    frame #0: 0x00000001c500072c libsystem_kernel.dylib`__psynch_cvwait + 8
    frame #1: 0x00000001dff4fc88 libsystem_pthread.dylib`_pthread_cond_wait$VARIANT$armv81 + 1180
    frame #2: 0x00000001041555d0 VLC for iOS`frame_worker_thread(arg=0x00000001091f75c0) at pthread_frame.c:177:13 [opt]
    frame #3: 0x00000001dff52b70 libsystem_pthread.dylib`_pthread_start + 288
  thread #67
    frame #0: 0x00000001c500072c libsystem_kernel.dylib`__psynch_cvwait + 8
    frame #1: 0x00000001dff4fc88 libsystem_pthread.dylib`_pthread_cond_wait$VARIANT$armv81 + 1180
    frame #2: 0x00000001041555d0 VLC for iOS`frame_worker_thread(arg=0x00000001091f77a0) at pthread_frame.c:177:13 [opt]
    frame #3: 0x00000001dff52b70 libsystem_pthread.dylib`_pthread_start + 288
  thread #68
    frame #0: 0x00000001c500072c libsystem_kernel.dylib`__psynch_cvwait + 8
    frame #1: 0x00000001dff4fc88 libsystem_pthread.dylib`_pthread_cond_wait$VARIANT$armv81 + 1180
    frame #2: 0x00000001041555d0 VLC for iOS`frame_worker_thread(arg=0x00000001091f7980) at pthread_frame.c:177:13 [opt]
    frame #3: 0x00000001dff52b70 libsystem_pthread.dylib`_pthread_start + 288
  thread #69
    frame #0: 0x00000001c500072c libsystem_kernel.dylib`__psynch_cvwait + 8
    frame #1: 0x00000001dff4fc88 libsystem_pthread.dylib`_pthread_cond_wait$VARIANT$armv81 + 1180
    frame #2: 0x00000001041555d0 VLC for iOS`frame_worker_thread(arg=0x00000001091f7b60) at pthread_frame.c:177:13 [opt]
    frame #3: 0x00000001dff52b70 libsystem_pthread.dylib`_pthread_start + 288
  thread #70
    frame #0: 0x00000001c500072c libsystem_kernel.dylib`__psynch_cvwait + 8
    frame #1: 0x00000001dff4fc88 libsystem_pthread.dylib`_pthread_cond_wait$VARIANT$armv81 + 1180
    frame #2: 0x000000010415447c VLC for iOS`ff_thread_decode_frame at pthread_frame.c:409:17 [opt]
    frame #3: 0x0000000104154314 VLC for iOS`ff_thread_decode_frame(avctx=0x0000000109023600, picture=0x00000001088dfd50, got_picture_ptr=0x000000016e49ac3c, avpkt=<unavailable>) at pthread_frame.c:490 [opt]
    frame #4: 0x0000000103d9e874 VLC for iOS`decode_receive_frame_internal [inlined] decode_simple_internal(avctx=0x0000000109023600, frame=0x00000001088dfd50) at decode.c:396:15 [opt]
    frame #5: 0x0000000103d9e78c VLC for iOS`decode_receive_frame_internal [inlined] decode_simple_receive_frame(avctx=0x0000000109023600, frame=0x00000001088dfd50) at decode.c:594 [opt]
    frame #6: 0x0000000103d9e78c VLC for iOS`decode_receive_frame_internal(avctx=0x0000000109023600, frame=0x00000001088dfd50) at decode.c:612 [opt]
    frame #7: 0x0000000103d9e4a4 VLC for iOS`avcodec_send_packet(avctx=0x0000000109023600, avpkt=0x000000016e49adb8) at decode.c:674:15 [opt]
    frame #8: 0x00000001048231b8 VLC for iOS`DecodeBlock + 1268
    frame #9: 0x00000001048226d0 VLC for iOS`DecodeVideo + 96
    frame #10: 0x00000001033c1c30 VLC for iOS`DecoderDecode + 52
    frame #11: 0x00000001033c16b0 VLC for iOS`DecoderProcess + 812
    frame #12: 0x00000001033be584 VLC for iOS`DecoderThread + 708
    frame #13: 0x00000001dff52b70 libsystem_pthread.dylib`_pthread_start + 288
  thread #71
    frame #0: 0x00000001c500072c libsystem_kernel.dylib`__psynch_cvwait + 8
    frame #1: 0x00000001dff4fc88 libsystem_pthread.dylib`_pthread_cond_wait$VARIANT$armv81 + 1180
    frame #2: 0x0000000103438114 VLC for iOS`vlc_cond_wait + 32
    frame #3: 0x00000001033c061c VLC for iOS`DecoderWaitUnblock + 92
    frame #4: 0x00000001033c0d20 VLC for iOS`DecoderPlayAudio + 496
    frame #5: 0x00000001033bf870 VLC for iOS`DecoderQueueAudio + 68
    frame #6: 0x000000010469fe14 VLC for iOS`decoder_QueueAudio + 176
    frame #7: 0x000000010469fa70 VLC for iOS`DecodeBlock + 1384
    frame #8: 0x00000001033c1c30 VLC for iOS`DecoderDecode + 52
    frame #9: 0x00000001033c165c VLC for iOS`DecoderProcess + 728
    frame #10: 0x00000001033be584 VLC for iOS`DecoderThread + 708
    frame #11: 0x00000001dff52b70 libsystem_pthread.dylib`_pthread_start + 288
(lldb)