VSE: blender crashes when adding speed transition to last retiming key #115007

New Issue

heini · 2023-11-16T19:17:59+01:00

heini commented

2023-11-16 19:17:59 +01:00

System Information
Operating system: Linux-5.4.0-155-generic-x86_64-with-glibc2.31 64 Bits, X11 UI
Graphics card: NVIDIA GeForce 940M/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 535.86.05

Blender Version
Broken: version: 4.1.0 Alpha, branch: main, commit date: 2023-11-15 19:33, hash: d0c073898a93
Worked: doesn't work in 4.0 either

Short description of error
If you select the last retiming key of the strip and add a speed transition, blender will crash. (I know this doesn't really make sense but it can happen by accident) maybe similar to this?
tested with factory defaults

add a clip to the vse
show retiming keys, select the last
add speed transition

(it seems to not be an issue when another key was added before but becomes unstable after that, crashes when moving the strip or one of the keys)

**System Information** Operating system: Linux-5.4.0-155-generic-x86_64-with-glibc2.31 64 Bits, X11 UI Graphics card: NVIDIA GeForce 940M/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 535.86.05 **Blender Version** Broken: version: 4.1.0 Alpha, branch: main, commit date: 2023-11-15 19:33, hash: `d0c073898a93` Worked: doesn't work in 4.0 either **Short description of error** If you select the last retiming key of the strip and add a speed transition, blender will crash. (I know this doesn't really make sense but it can happen by accident) maybe similar to [this?](https://projects.blender.org/blender/blender/issues/109475) tested with factory defaults - add a clip to the vse - show retiming keys, select the last - add speed transition (it seems to not be an issue when another key was added before but becomes unstable after that, crashes when moving the strip or one of the keys)

blender.crash.txt

2.3 KiB

heini added the

labels 2023-11-16 19:18:00 +01:00

Germano Cavalcante commented

2023-11-16 22:03:03 +01:00

Thank you for the report.
I can confirm. And it seems to have the same crash-log as #109475. So if it's not a duplicate, they're well related.

Exception thrown: read access violation.
start_key was nullptr.

>	blender.exe!seq_retiming_evaluate(const Sequence * seq, const float frame_index) Line 259	C++
 	blender.exe!SEQ_retiming_add_key(const Scene * scene, Sequence * seq, int timeline_frame) Line 290	C++
 	blender.exe!SEQ_retiming_add_transition(const Scene * scene, Sequence * seq, SeqRetimingKey * key, int offset) Line 546	C++
 	blender.exe!transition_add_new_for_seq(const bContext * C, const wmOperator * op, Sequence * seq, const int timeline_frame, const int duration) Line 449	C++
 	blender.exe!transition_add_from_retiming_selection(const bContext * C, const wmOperator * op, const int duration) Line 469	C++
 	blender.exe!sequencer_retiming_transition_add_exec(bContext * C, wmOperator * op) Line 487	C++
 	blender.exe!wm_operator_invoke(bContext * C, wmOperatorType * ot, const wmEvent * event, PointerRNA * properties, ReportList * reports, const bool poll_only, bool use_last_properties) Line 1562	C++
 	blender.exe!wm_operator_call_internal(bContext * C, wmOperatorType * ot, PointerRNA * properties, ReportList * reports, const wmOperatorCallContext context, const bool poll_only, const wmEvent * event) Line 1751	C++
 	blender.exe!WM_operator_name_call_ptr(bContext * C, wmOperatorType * ot, wmOperatorCallContext context, PointerRNA * properties, const wmEvent * event) Line 1800	C++
 	blender.exe!WM_operator_name_call_ptr_with_depends_on_cursor(bContext * C, wmOperatorType * ot, wmOperatorCallContext opcontext, PointerRNA * properties, const wmEvent * event, const char * drawstr) Line 1989	C++
 	blender.exe!ui_apply_but_funcs_after(bContext * C) Line 1047	C++
 	blender.exe!ui_handler_region_menu(bContext * C, const wmEvent * event, void * __formal) Line 11655	C++
 	blender.exe!wm_handler_ui_call(bContext * C, wmEventHandler_UI * handler, const wmEvent * event, const bool always_pass) Line 831	C++
 	blender.exe!wm_handlers_do_intern(bContext * C, wmWindow * win, wmEvent * event, ListBase * handlers) Line 3333	C++
 	blender.exe!wm_handlers_do(bContext * C, wmEvent * event, ListBase * handlers) Line 3450	C++
 	blender.exe!wm_event_do_handlers(bContext * C) Line 4077	C++
 	blender.exe!WM_main(bContext * C) Line 616	C++
 	blender.exe!main(int argc, const char * * __formal) Line 597	C++

@iss ^

Thank you for the report. I can confirm. And it seems to have the same crash-log as #109475. So if it's not a duplicate, they're well related. ``` Exception thrown: read access violation. start_key was nullptr. ``` ``` > blender.exe!seq_retiming_evaluate(const Sequence * seq, const float frame_index) Line 259 C++ blender.exe!SEQ_retiming_add_key(const Scene * scene, Sequence * seq, int timeline_frame) Line 290 C++ blender.exe!SEQ_retiming_add_transition(const Scene * scene, Sequence * seq, SeqRetimingKey * key, int offset) Line 546 C++ blender.exe!transition_add_new_for_seq(const bContext * C, const wmOperator * op, Sequence * seq, const int timeline_frame, const int duration) Line 449 C++ blender.exe!transition_add_from_retiming_selection(const bContext * C, const wmOperator * op, const int duration) Line 469 C++ blender.exe!sequencer_retiming_transition_add_exec(bContext * C, wmOperator * op) Line 487 C++ blender.exe!wm_operator_invoke(bContext * C, wmOperatorType * ot, const wmEvent * event, PointerRNA * properties, ReportList * reports, const bool poll_only, bool use_last_properties) Line 1562 C++ blender.exe!wm_operator_call_internal(bContext * C, wmOperatorType * ot, PointerRNA * properties, ReportList * reports, const wmOperatorCallContext context, const bool poll_only, const wmEvent * event) Line 1751 C++ blender.exe!WM_operator_name_call_ptr(bContext * C, wmOperatorType * ot, wmOperatorCallContext context, PointerRNA * properties, const wmEvent * event) Line 1800 C++ blender.exe!WM_operator_name_call_ptr_with_depends_on_cursor(bContext * C, wmOperatorType * ot, wmOperatorCallContext opcontext, PointerRNA * properties, const wmEvent * event, const char * drawstr) Line 1989 C++ blender.exe!ui_apply_but_funcs_after(bContext * C) Line 1047 C++ blender.exe!ui_handler_region_menu(bContext * C, const wmEvent * event, void * __formal) Line 11655 C++ blender.exe!wm_handler_ui_call(bContext * C, wmEventHandler_UI * handler, const wmEvent * event, const bool always_pass) Line 831 C++ blender.exe!wm_handlers_do_intern(bContext * C, wmWindow * win, wmEvent * event, ListBase * handlers) Line 3333 C++ blender.exe!wm_handlers_do(bContext * C, wmEvent * event, ListBase * handlers) Line 3450 C++ blender.exe!wm_event_do_handlers(bContext * C) Line 4077 C++ blender.exe!WM_main(bContext * C) Line 616 C++ blender.exe!main(int argc, const char * * __formal) Line 597 C++ ``` @iss ^

Germano Cavalcante added

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VSE: blender crashes when adding speed transition to last retiming key #115007