QML playback of webm files sometimes hangs

Bug Reports
1

REPRODUCIBILITY: 10-20%
OS VERSION: 4.5.0.25
HARDWARE: XIII
UI LANGUAGE: eng
REGRESSION: no

DESCRIPTION:

When playing back webm files in neliapila or even jolla-gallery app the playback will sometimes stop after first few frames and cause the app to become unresponsive. Example webm for testing: https://files.catbox.moe/0y9d2i.webm
Never seen that happen with the browser so please download the file and open it in gallery app 5-10 times in a row (if playback doesn’t halt almost immediately, just close player window and open again until it breaks)

In console this error is thrown (but not 100% of the time): library “/apex/com.android.vndk.v30/lib64/hw/android.hidl.memory@1.0-impl.so” needed or dlopened by “/usr/libexec/droid-hybris/system/lib64/libvndksupport.so” is not accessible for the namespace “sphal”
Edit: sometimes the above message is preceded by: library “libandroidicu.so” needed or dlopened by “/system/lib64/libmedia.so” is not accessible for the namespace “(default)”
But also not 100%

PRECONDITIONS:

Have a webm file (for example: https://files.catbox.moe/0y9d2i.webm)

STEPS TO REPRODUCE:

Never seen that happen with the browser so please download the example file and open it in gallery app 5-10 times in a row (if playback doesn’t halt almost immediately, just close and open again until it breaks)

EXPECTED RESULT:

Playback works fine every time

ACTUAL RESULT:

Playback stops and the app hangs after leaving the player

MODIFICATIONS:

Openrepos, extra swap

ADDITIONAL INFORMATION:

2 Likes
2

I can’t reproduce this on my XA2.

Currently Gallery is my only video player, I just tried 10x with appsupport activated, and 10x without. Always closing the app in between.

The video is 12s long, yes?

I also don’t see any weird output in the journal (like what you describe). None, in fact, while the video is playing.

1 Like
3

No need to close app, just X to close player and get back to list of videos to click the webm again etc, seems pretty reproducible on XIII, maybe 64bit bug, don’t remember it on jolla C either

4

Also not happening on i486/j tablet, so 99% aarch64 or even XIII specific bug

5

5.0.0.55 - the issue is worse than ever as detection of the hanging is gone now, if you hit that bug and go back one page the ‘app appears to be stuck, wanna kill it?’ popup never shows up and closing it with top swipe leaves a process running causing all kinds of issues (accessing webview in neliapila will cause an app crash if previous neliapila process got hung this way, and of course a ton of memory wasted), it’s probably a separate bug about hanging detection but it’s the only way I know how to trigger it so reporting here
(edit: oh and confirmed on C2 so 99.9% aarch64 bug, not xperia specific)
Edit2: on .61 the ‘app is hanging, close?’ seems to be back, sadly webm hanging is still there