[phonon-backend-vlc] [Bug 434506] Crash when attempting to play a video in the preview of the information panel with Phonon-VLC

[Harald Sitter]

https://bugs.kde.org/show_bug.cgi?id=434506

Harald Sitter <sitter at kde.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REPORTED                    |NEEDSINFO
         Resolution|---                         |WAITINGFORINFO

--- Comment #13 from Harald Sitter <sitter at kde.org> ---
Since you are on neon I've just thrown the patch into the package.
You'll want to edit /etc/apt/sources.list.d/neon.list and change /user to
/release, then update the package with a command like `pkcon refresh && pkcon
update phonon4qt5-backend-vlc`
Once done you can switch back to /user

The patch introduces a number of different image calculation branches
controlled through environment variables. Please make note which variants
crashed or not:

- make sure all dolphins are closed in between steps
- run dolphin with `P_OUR_MATHS=1 dolphin --new-window`
- try to get it to crash
- run dolphin with `P_QIMAGE=1 dolphin --new-window`
- try to get it to crash
- run dolphin with `P_PIC_ALIGN=1 dolphin --new-window`
- try to get it to crash
- run dolphin with `P_PIC_VIS=1 dolphin --new-window`
- try to get it to crash

Comment on the bug which variants crashed and which did not.

Please also grab the console output of at least one run. Specifically I'm
intrested in the lines that look like this:

Phonon::VLC::SurfacePainter::formatCallback: -------- 1920 1088 V
Phonon::VLC::SurfacePainter::formatCallback: rgb32 7680 1088 8355840
Phonon::VLC::SurfacePainter::formatCallback: V rgb32 7680 1090 8371200
Phonon::VLC::SurfacePainter::formatCallback: :: V rgb32 [ 0 ] 7680 1090 7680
1088 4
Phonon::VLC::VideoMemoryStream::formatCallbackInternal: FORMAT[chroma: RV32, w:
1920, h: 1088, pitch: 7680, lines: 7680, size: 58982400]

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