Crash when using gpu-next on AMD 5800H due to libplacebo assertion failure

[erickyun]

Hi, I’m encountering a reproducible crash when using a custom mpv-1.dll with gpu-next and vulkan backend on a Beelink SER5 mini PC (AMD Ryzen 7 5800H, Windows 11).

Steps to Reproduce

1. Replace mpv-1.dll with dev build (e.g., mpv-dev-i686-20241227-git-379c078).

2. Patch Stremio executable to enable MPV config reading (as suggested here: Make it possible to create mpv config file #81 (comment)).

3. Use input.conf with key apply-profile gpu-next

4. Launch a video.

Expected Behavior

Video should play using gpu-next profile.

Actual Behavior

Stremio crashes immediately. Stremio logs show the following assertion failure:

Assertion failed: gpu->limits.max_vbo_size <= gpu->limits.max_buf_size in ../../../../../src_packages/libplacebo/src/gpu/utils.c:160

Additional Info

This issue does not occur on my other PC with NVIDIA GPU — only on the Beelink mini PC.

If I switch to opengl, the crash stops but MPV video output window is gone entirely.

MPV itself works standalone with gpu-next and Vulkan — only crashes inside Stremio.

System: Windows 11, AMD 5800H

Workarounds Tried

Different MPV builds

Changing API to opengl (avoids crash but breaks video window)

Click here to see Log stremio.exe > logs.txt

hls executables located ->  {
  ffmpeg: 'C:\\Users\\aydin\\AppData\\Local\\Programs\\LNV\\Stremio-4\\ffmpeg.exe',
  ffsplit: null,
  ffprobe: 'C:\\Users\\aydin\\AppData\\Local\\Programs\\LNV\\Stremio-4\\ffprobe.exe'
}
Using app path -> C:\Users\aydin\AppData\Roaming\stremio\stremio-server
Enabling casting...
(node:4348) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead.
(Use `stremio-runtime --trace-deprecation ...` to show where the warning was created)
Assertion failed: gpu->limits.max_vbo_size <= gpu->limits.max_buf_size in ../../../../../src_packages/libplacebo/src/gpu/utils.c:160

Click here to see Log Event Viewer

Log Name:      Application
Source:        Application Error
Date:          22.04.2025 01:41:42
Event ID:      1000
Task Category: Application Crashing Events
Level:         Error
Keywords:      
User:          AYDN\aydin
Computer:      aydn
Description:
Faulting application name: stremio.exe, version: 0.0.0.0, time stamp: 0x6603f767
Faulting module name: ucrtbase.dll, version: 10.0.22621.3593, time stamp: 0x84b62951
Exception code: 0xc0000409
Fault offset: 0x0009e3bb
Faulting process id: 0x0x29C4
Faulting application start time: 0x0x1DBB30E769D45D7
Faulting application path: C:\Users\aydin\AppData\Local\Programs\LNV\Stremio-4\stremio.exe
Faulting module path: C:\WINDOWS\System32\ucrtbase.dll
Report Id: daabbfb1-7a98-4208-8cec-0b8ff4af85d9
Faulting package full name: 
Faulting package-relative application ID: 
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Application Error" Guid="{a0e9b465-b939-57d7-b27d-95d8e925ff57}" />
    <EventID>1000</EventID>
    <Version>0</Version>
    <Level>2</Level>
    <Task>100</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8000000000000000</Keywords>
    <TimeCreated SystemTime="2025-04-21T22:41:42.0703016Z" />
    <EventRecordID>19337</EventRecordID>
    <Correlation />
    <Execution ProcessID="7568" ThreadID="7588" />
    <Channel>Application</Channel>
    <Computer>aydn</Computer>
    <Security UserID="S-1-5-21-1037397759-3751909605-3073522692-1001" />
  </System>
  <EventData>
    <Data Name="AppName">stremio.exe</Data>
    <Data Name="AppVersion">0.0.0.0</Data>
    <Data Name="AppTimeStamp">6603f767</Data>
    <Data Name="ModuleName">ucrtbase.dll</Data>
    <Data Name="ModuleVersion">10.0.22621.3593</Data>
    <Data Name="ModuleTimeStamp">84b62951</Data>
    <Data Name="ExceptionCode">c0000409</Data>
    <Data Name="FaultingOffset">0009e3bb</Data>
    <Data Name="ProcessId">0x29c4</Data>
    <Data Name="ProcessCreationTime">0x1dbb30e769d45d7</Data>
    <Data Name="AppPath">C:\Users\aydin\AppData\Local\Programs\LNV\Stremio-4\stremio.exe</Data>
    <Data Name="ModulePath">C:\WINDOWS\System32\ucrtbase.dll</Data>
    <Data Name="IntegratorReportId">daabbfb1-7a98-4208-8cec-0b8ff4af85d9</Data>
    <Data Name="PackageFullName">
    </Data>
    <Data Name="PackageRelativeAppId">
    </Data>
  </EventData>
</Event>

</details>

[rijnhard]

It will crash, because gpu-next (vulkan) isn't supported by libmpv see mpv-player/mpv#10810