Bug 409363

Summary: When pausing video playback the video output can turn black
Product: [Unmaintained] phonon-backend-gstreamer Reporter: Méven Car <meven29>
Component: generalAssignee: Daniel Vrátil <dvratil>
Status: RESOLVED FIXED    
Severity: normal CC: myriam, romain.perier, sitter, tdfischer
Priority: NOR    
Version First Reported In: 4.9.0   
Target Milestone: 4.8   
Platform: Other   
OS: Linux   
Latest Commit: https://commits.kde.org/phonon-gstreamer/ff1f48bda6d21aa4dbda76c87ba8a1e7ab4b64e2 Version Fixed/Implemented In: 4.9.1
Sentry Crash Report:

Description Méven Car 2019-07-01 11:38:29 UTC 
SUMMARY

When pausing a video playback the paused video can turn black, instead of showing latest video frame.
This is demonstrated in dolphin with patch https://phabricator.kde.org/D22183
but not in dragonplayer.
Resizing the window or moving the mouse around can make the last frame appear for an instant.

STEPS TO REPRODUCE
1. build dolphin with patch https://phabricator.kde.org/D22183
2. Preview a video
3. Click on the video playing

OBSERVED RESULT
The video is paused, the video output is black.

EXPECTED RESULT
The video is paused, last video frame is visible.


SOFTWARE/OS VERSIONS
Operating System: Kubuntu 19.04
KDE Plasma Version: 5.16.80
KDE Frameworks Version: 5.60.0
Qt Version: 5.12.2
Kernel Version: 5.0.0-20-generic

ADDITIONAL INFORMATION
Comment 1 Daniel Vrátil 2019-07-03 19:38:08 UTC 
I can reproduce. Looks like a bug in the default X11 renderer
Comment 2 Daniel Vrátil 2019-07-04 12:04:42 UTC 
Git commit ff1f48bda6d21aa4dbda76c87ba8a1e7ab4b64e2 by Daniel Vrátil.
Committed on 04/07/2019 at 12:03.
Pushed by dvratil into branch '4.9'.

X11Renderer: don't blank overlay on pause

Summary:
FIXED-IN: 4.9.1

Test Plan:
Tested with Dolphin with patch D22050 applied, pausing a video preview
in Info pane by clicking on it no longer blanks the video widget.

Reviewers: O4 phonon, sitter

Reviewed By: O4 phonon, sitter

Differential Revision: https://phabricator.kde.org/D22254

M  +6    -4    gstreamer/x11renderer.cpp
M  +1    -1    gstreamer/x11renderer.h

https://commits.kde.org/phonon-gstreamer/ff1f48bda6d21aa4dbda76c87ba8a1e7ab4b64e2