Quote:
Originally Posted by Chikuzen
I got a bug report from an avs2pipemod user.
Code:
SetLogParams("stderr", LOG_INFO)
ColorBarsHD()
ScriptClip("SubTitle(String(current_frame))")
prefetch(4)
When "DEFAULT_MT_MODE" is not set to 3, ScriptClip causes access violation.
I think this should be prevented. |
I tried all MT modes, and yes only mode 3 worked. The access violation on one of the tests seems to be at the same address as I had with my issue with deveed. This isn't exactly repeatable though, the first crash in mode 1 was only repeatable once, most times the crashes in modes 1 and 2 just causes avsmeter64 to fully crash or crash and pause with a whole heap of output like (small excerpt):
Code:
pâ³
([ScriptClip], line -1735100535)
ERROR: Þâ³
([ScriptClip], line -1736150327)
---------------------------------------------------------------------
ERROR: ---------------------------------------------------------------------
System exception - Access Violation
------------------------------------------------------------------------------------------------------------------------------------------
---------------------------------------------------------------------
ERROR: ERROR:
System exception - Access Violation
ERROR: System exception - Access Violation
à³
([ScriptClip], line -1728810999)
ERROR: ---------------------------------------------------------------------
---------------------------------------------------------------------
System exception - Access Violation
ERROR: ERROR: Hà³
([ScriptClip], line -1736150327)pà³
([ScriptClip], line -1729857847)
---------------------------------------------------------------------
ERROR: ---------------------------------------------------------------------└à³
I copied this directly from the command prompt. You can do that in modern Windows, just highlight and press ctrl+c.
This is what I get with MT mode set to 1 when it did throw a meaningful error. I know 1 is 'unreliable', I included it for comparison:
Quote:
Exception 0xC0000005 [STATUS_ACCESS_VIOLATION]
Module: C:\Windows\System32\KernelBase.dll
Address: 0x00007FFCC2FF79A8
|
With mode 2:
Quote:
---------------------------------------------------------------------
ERROR: System exception - Access Violation
---------------------------------------------------------------------
ERROR: |═
([ScriptClip], line 531728591)
Exception 0xC0000005 [STATUS_ACCESS_VIOLATION]
Module: C:\Windows\System32\AviSynth.dll
Address: 0x00007FFC8DB00E75
|
The issue lies with ScriptClip, the following works:
Quote:
SetFilterMTMode("DEFAULT_MT_MODE", 1)
SetFilterMTMode("ScriptClip", 3)
SetLogParams("stderr", LOG_INFO)
ColorBarsHD()
ScriptClip("SubTitle(String(current_frame))")
prefetch(4)
|
I guess it makes sense, there is a message that says:
Quote:
---------------------------------------------------------------------
WARNING: AviSynth_ScriptClip() has no MT-mode set and will use the default MT-mode. This might be dangerous.
---------------------------------------------------------------------
|