FFMPEG.DLL CRASHING OBS

[FlashBowski]

Hello all.

I've been having an issue recently with obs crashing. It's not necessarily during recording or streaming. I think it's to do with some video encoding issue but I've not changed much in my system setup recently. 2 things that I KNOW that have happened are the windows update 24H2 as well as upgrading to OBS 31.0. I can attempt to rollback but don't want to to do that without others weighing in on what the issue might be.

Thanks in advance.

 

[Suslik V]

Thread DC88: mp_cache_thread (Crashed)
Stack            EIP              Arg0             Arg1             Arg2             Arg3             Address
000000A015DFFA40 00007FFE25BF50A2 000000A015DFFC20 000001E5C423A7C0 0000000000000000 000001E606CC0B60 obs-ffmpeg.dll!mp_media_next_audio+0x22
000000A015DFFAD0 00007FFE25BF3064 000001E44C5B0000 0000000000000000 000001E606CC0A28 0000000000000000 obs-ffmpeg.dll!mp_cache_thread+0x74
000000A015DFFB90 00007FFE25BF352E 0000000000000000 000001E82F3A2B50 000000A015DFFC20 000001E5C423A7C0 obs-ffmpeg.dll!mp_cache_thread_start+0xe
000000A015DFFBC0 00007FFE99CE1461 000001E82F3A2B50 0000000000000000 0000000000000000 0000000000000000 w32-pthreads.dll!ptw32_threadStart+0x171
000000A015DFFC30 00007FFEA0784EA0 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ucrtbase.dll!0x7ffea0784ea0
000000A015DFFC60 00007FFEA1E2E8D7 0000000000000000 0000000000000000 000004F0FFFFFB30 000004D0FFFFFB30 kernel32.dll!0x7ffea1e2e8d7
000000A015DFFC90 00007FFEA31BFBCC 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ntdll.dll!0x7ffea31bfbcc

This is crash in the thread of caching audio track from media source (like Stringer transition). This feature of OBS was added in:

obs-transitions: Add option to preload stinger video to RAM · obsproject/obs-studio@4bf14d0

Stingers -- and especially track matte stingers -- are currently subject to real time decoding, which can be detrimental in a production environment where a stinger video may not be able to decode ...

github.com

It seems that feature appeared first in OBS 29.1.0-beta1. It has corresponding control option "Preload Video to RAM" checkbox that can be set/unset. Should be located under the hardware decoding option of the Stinger source.