Details
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Bug
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Resolution: Fixed
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P1: Critical
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6.7.3, 6.8.0
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None
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MacBook Pro 16" (M1 Pro, 2021)
MacBook Air 13" (M1, 2020)
Mac15,12
etc.
Different macOS versions, 12.5 - 15.0
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2c316575c (dev), 424dd8f4b (6.8), 8352e255e (dev), 1a5f0e6fd (dev), b6b378b1e (6.8), f0969f356 (6.8)
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Multimedia wk 43-44, Multimedia wk 47-48, Multimedia wk 49-50
Description
We've never reproduced this locally, I just found such crashes in our automated tracking system.
Exception Type: SIGSEGV Exception Codes: SEGV_MAPERR at 0x6fe88c1e8f50 Crashed Thread: 61 Thread 61 Crashed: 0 libobjc.A.dylib 0x000000019801bfbc objc_retain + 16 1 MediaToolbox 0x00000001a7a03e9c FPSupport_CopyCAContext + 11072 2 MediaToolbox 0x00000001a7919b68 FigPlayerAsyncDispatchToPlayerQueue + 132972 3 MediaToolbox 0x00000001a7916178 FigPlayerAsyncDispatchToPlayerQueue + 118140 4 MediaToolbox 0x00000001a792819c FigPlayerAsyncDispatchToPlayerQueue + 191904 5 MediaToolbox 0x00000001a7925674 FigPlayerAsyncDispatchToPlayerQueue + 180856 6 MediaToolbox 0x00000001a7956704 FigPlayerAsyncDispatchToPlayerQueue + 381704 7 libdispatch.dylib 0x00000001982423e8 _dispatch_client_callout + 16 8 libdispatch.dylib 0x0000000198249a14 _dispatch_lane_serial_drain + 744 9 libdispatch.dylib 0x000000019824a578 _dispatch_lane_invoke + 428 10 libdispatch.dylib 0x0000000198253ea8 _dispatch_root_queue_drain + 388 11 libdispatch.dylib 0x0000000198253c38 _dispatch_worker_thread + 256 12 libsystem_pthread.dylib 0x00000001983f2f94 _pthread_start + 132 13 libsystem_pthread.dylib 0x00000001983edd34 thread_start + 4 Thread 0: 0 libsystem_kernel.dylib 0x00000001983b4ea4 __psynch_mutexwait + 8 1 libsystem_pthread.dylib 0x00000001983ed9f0 _pthread_mutex_firstfit_lock_slow + 244 2 MediaToolbox 0x00000001a7931dfc FigPlayerAsyncDispatchToPlayerQueue + 231936 3 MediaToolbox 0x00000001a793a1c4 FigPlayerAsyncDispatchToPlayerQueue + 265672 4 MediaToolbox 0x00000001a7a0a380 FPSupport_GetMainDisplayVideoRangeAndSizeAndFrameRate + 13632 5 MediaToolbox 0x00000001a7a0a298 FPSupport_GetMainDisplayVideoRangeAndSizeAndFrameRate + 13400 6 MediaToolbox 0x00000001a7d9dccc FigPlayerSurrogateCreate + 2508 7 MediaToolbox 0x00000001a7ae31e0 FigPlayerAirPlayCreate + 3940 8 MediaToolbox 0x00000001a7a4e28c FigPlayerCentralCreate + 3508 9 MediaToolbox 0x00000001a7a0a53c FPSupport_GetMainDisplayVideoRangeAndSizeAndFrameRate + 14076 10 MediaToolbox 0x00000001a78fa504 FigPlayerAsyncDispatchToPlayerQueue + 4360 11 MediaToolbox 0x00000001a78fa2f4 FigPlayerAsyncDispatchToPlayerQueue + 3832 12 libdispatch.dylib 0x00000001982423e8 _dispatch_client_callout + 16 13 libdispatch.dylib 0x00000001982518d8 _dispatch_lane_barrier_sync_invoke_and_complete + 52 14 MediaToolbox 0x00000001a78fd28c FigPlayerAsyncDispatchToPlayerQueue + 16016 15 MediaToolbox 0x00000001a7a0a380 FPSupport_GetMainDisplayVideoRangeAndSizeAndFrameRate + 13632 16 MediaToolbox 0x00000001a7a0a298 FPSupport_GetMainDisplayVideoRangeAndSizeAndFrameRate + 13400 17 MediaToolbox 0x00000001a78f98f4 FigPlayerAsyncDispatchToPlayerQueue + 1272 18 AVFCore 0x00000001addaa8ec __69-[AVPlayer(AVPlayerAudioDeviceSupport) setAudioOutputDeviceUniqueID:]_block_invoke_2 + 184 19 libdispatch.dylib 0x00000001982423e8 _dispatch_client_callout + 16 20 libdispatch.dylib 0x00000001982518d8 _dispatch_lane_barrier_sync_invoke_and_complete + 52 21 AVFCore 0x00000001addaa7d8 -[AVPlayer(AVPlayerAudioDeviceSupport) setAudioOutputDeviceUniqueID:] + 244 22 libdarwinmediaplugin.dylib 0x000000035c07cd34 AVFMediaPlayer::updateAudioOutputDevice() (avfmediaplayer.mm:945) 23 libdarwinmediaplugin.dylib 0x000000035c07e9b4 AVFMediaPlayer::setAudioOutput(QPlatformAudioOutput*) (avfmediaplayer.mm:759) 24 QtMultimedia 0x0000000106910ae8 QMediaPlayer::setAudioOutput(QAudioOutput*) (qmediaplayer.cpp:678) 25 QtMultimedia 0x00000001069109f0 QMediaPlayer::~QMediaPlayer() (qmediaplayer.cpp:251) 26 QtMultimediaQuick 0x000000035c5ed7dc QQmlPrivate::QQmlElement<QQuickMediaPlayer>::~QQmlElement() (qquickmediaplayer_p.h:26) 27 QtCore 0x0000000108f73968 QObject::event(QEvent*) (qobject.cpp:5002) ...
Update:
I was able to reproduce this crash few times with the following code sample
import QtQuick import QtMultimedia Window { width: 640 height: 480 visible: true VideoOutput { id: output anchors.fill: parent } Loader { id: loader sourceComponent: MediaPlayer { videoOutput: output audioOutput: AudioOutput {} autoPlay: true source: 'https://raw.githubusercontent.com/mediaelement/mediaelement-files/refs/heads/master/echo-hereweare.mp4' } } Timer { id: timer repeat: true interval: 300 running: true onTriggered: { loader.active = false loader.active = true } } }
But it crashes really spontaneously, so don’t expect it to crash right away.
Attachments
Issue Links
- relates to
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QTBUG-130299 [windows] Sporadic ASSERT on QMediaPlayer destruction
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- Closed
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