How report crashes in MPC-HC?

From time to time MPC-HC (x64) crash, but it isn't easy to reproduce.

How make it create a sort of dump file when it crash?
Is there a debug version of MPC-HC (x64)?

Download this zip file:
https://github.com/clsid2/mpc-hc/releases/download/1.9.4.18/MPC-HC.1.9.4.18.x64.zip

Use that to replace your current MPC-HC files. Also include the CrashReporter folder.

Thanks, I got it to crash but where is the dump saved?
I just see the Windows error reporting of Windows 10.

You should not be getting Windows Error Reporting. Look in the Windows Event Viewer, that shows logs for WER.

The Crash Reporter should (when it works correctly) open a web page with crash details.

It was freezing before the crash so it may be the cause (possibly in DXVA code).

Is there a way to debug it?

Windows Event Viewer:

Code:

Nome registro: Application
Origine:      Application Hang
Data:          09/06/2020 04:54:49
ID evento:    1002
Categoria attività:(101)
Livello:      Errore
Parole chiave: Classico
Utente:        N/D
Descrizione:
Il programma mpc-hc64.exe versione 1.9.4.18 non interagisce più con Windows ed è stato chiuso. Per vedere se sono disponibili ulteriori informazioni sul problema, verificare la cronologia del problema in Sicurezza e manutenzione nel Pannello di controllo.
 ID processo: 10bc
 Ora di avvio: 01d63df552692eeb
 Ora di chiusura: 22
 Percorso applicazione: C:\Program Files (x86)\K-Lite Codec Pack\MPC-HC64\mpc-hc64.exe
 ID segnalazione: 5e9c6bfc-9f45-4652-ab73-883ec80e8e16
 Nome completo pacchetto che ha generato l'errore:
 ID applicazione relativo al pacchetto che ha generato l'errore:
 Tipo interruzione: Unknown

XML evento:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Application Hang" />
    <EventID Qualifiers="0">1002</EventID>
    <Level>2</Level>
    <Task>101</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2020-06-09T02:54:49.344224900Z" />
    <EventRecordID>32432</EventRecordID>
    <Channel>Application</Channel>
    <Security />
  </System>
  <EventData>
    <Data>mpc-hc64.exe</Data>
    <Data>1.9.4.18</Data>
    <Data>10bc</Data>
    <Data>01d63df552692eeb</Data>
    <Data>22</Data>
    <Data>C:\Program Files (x86)\K-Lite Codec Pack\MPC-HC64\mpc-hc64.exe</Data>
    <Data>5e9c6bfc-9f45-4652-ab73-883ec80e8e16</Data>
    <Data>
    </Data>
    <Data>
    </Data>
    <Data>Unknown</Data>
    <Binary>55006E006B006E006F0077006E0000000000</Binary>
  </EventData>
</Event>

When it freezes, don't attempt to close it.
Open the Windows Task Manager, right-click on mpc-hc64.exe and select "create dump".
Zip the dmp file and upload it somewhere. If the cause is in MPC-HC, then maybe I can find it.

When exactly does the freeze occur? At playback start or just a random moment during playback?

I usually use MPC-HC (x64) to see streamings using youtube-dl.
The freeze happens after seeing some streamings and seeking.

Settings:
madVR
DXVA2 (native) with Intel video card

I will try to reproduce it again.

It freeze inside fullscreen and it keep itself on top, so I cannot use task manager.
I have opened task manager but it remain behind MPC-HC so it cannot be used.

Disable exclusive fullscreen in madVR settings. Then you should be able to use Alt+Tab to switch to another window.

Does the freeze happen while simply watching a video, or does it happen after doing something such as seeking?

You could try the latest beta version of madVR:
http://madshi.net/madVRhdrMeasure113.zip
Note: disable smooth motion option, as that is broken in this version.

The option "enable automatic fullscreen exclusive mode" was not enabled, so I don't know.

I will try the beta.

Which hardware decoder are you using in LAV Video? DXVA2 or D3D11? Someone else also has freeze issue with madVR, but only with D3D11 native.

Freeze if I remember correctly was while seeking.

I use DXVA2 (native), I have just used the settings of the installer.

@Admin: I have sent you a dump via PM.

I get it to freeze also without hardware acceleration, so it must be a different thing.

The rar file is damaged. Can you try again with this build:
https://github.com/clsid2/mpc-hc/releases/download/1.9.4.25/MPC-HC.1.9.4.34.x64.zip

Could you also test if freeze also happens with MPC Video Renderer? It would be interesting to know if it happens only with madVR.

Does it only happen with streaming, or also with local file playback?

I have verified that the file is good.
If you have entered the password correctly including the !!! (and without any space) then the problem is the WinRAR version.
The archive is created with a recent version of WinRAR (the RAR4 format is not the same of the old legacy RAR), if you use an old version of WinRAR it will say that it is damaged.

You can use the demo of WinRAR: https://www.rarlab.com/download.htm
The demo never end although it has a message that ask to buy it will still work.

PS: I will try MPC Video Renderer and new MPC-HC x64

The hang happens when lavsplitter is flushing previous data after the seek. It is similar to another freeze issue in combination with madVR.

There is nothing I can do about this right now.

There is supposed to be a new madVR (test) version soon. Hopefully thing improve with that.

It froze also with MPC Video Renderer and new MPC-HC x64.

PS: The forum appears all messed up.

Has the problem been happening for a long time already, or did it start recently?

I'm not sure because I haven't used MPC-HC for long time and started using again recently.

Someone on Doom9 forum suggested it may be a regression in recent versions.

Could you test with 1.9.2 and 1.9.3?

If those work ok, then we can narrow down when the bug was introduced.

I will try to reproduce again with 1.9.3 x64

Might be fixed in this new version:
https://github.com/clsid2/mpc-hc/releases/download/1.9.5.6/MPC-HC.1.9.5.10.x64.zip

I got a freeze with 1.9.3 x64.

I will retry with 1.9.5.10 x64.