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Bug 1477281 - wrong colours of video thumbnails in totem on s390x
Summary: wrong colours of video thumbnails in totem on s390x
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: gstreamer1
Version: 7.4
Hardware: s390x
OS: Linux
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Wim Taymans
QA Contact: Desktop QE
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2017-08-01 15:34 UTC by Tomas Hudziec
Modified: 2021-01-15 07:40 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2021-01-15 07:40:31 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
wrong thumbnail colours in totem and nautilus (473.56 KB, image/png)
2017-08-01 15:34 UTC, Tomas Hudziec 		no flags Details
gst-launch (44.92 KB, image/png)
2017-08-08 14:36 UTC, Tomas Hudziec 		no flags Details
ogv video thumbnail from ~/.cache/thumbnails/large (31.08 KB, image/png)
2017-08-08 15:25 UTC, Tomas Hudziec 		no flags Details
outputs of gst-launch commands (6.05 KB, text/plain)
2017-10-09 16:32 UTC, Tomas Hudziec 		no flags Details
View All

Description Tomas Hudziec 2017-08-01 15:34:40 UTC 
Created attachment 1307717 [details]
wrong thumbnail colours in totem and nautilus

Description of problem:
Video thumbnails in totem have wrong colours.

Version-Release number of selected component (if applicable):
totem-3.22.1-1.el7.s390x
nautilus-3.22.3-3.el7.s390x

How reproducible:
100%

Steps to Reproduce:
1. have some video files in ~/Videos folder
2. open totem

Actual results:
thumbnails have wrong colours

Expected results:
thumbnails have correct colours

Additional info:
happens also with thumbnails in nautilus
Comment 2 Bastien Nocera 2017-08-08 09:49:34 UTC 
Looks like there's no green.

Does:
gst-launch-1.0 videotestsrc ! autovideosink
also show the problem?

Does:
gst-play-1.0 /path/to/those/files/
show the problem?
Comment 3 Tomas Hudziec 2017-08-08 14:36:46 UTC 
Created attachment 1310651 [details]
gst-launch

comparison of "gst-launch-1.0 videotestsrc ! autovideosink" on s390x (top) and 
x86_64 (bottom)
Comment 4 Tomas Hudziec 2017-08-08 14:39:24 UTC 
"gst-play-1.0 /path/to/those/files/" plays video with correct colours
Comment 5 Bastien Nocera 2017-08-08 14:48:05 UTC 
Can you please attach the actual thumbnails created in ~/.cache/thumbnails/large/ for those video files?

There's already problems somewhere in GStreamer, but let's see whether there's not another problem somewhere else.
Comment 6 Tomas Hudziec 2017-08-08 15:25:35 UTC 
Created attachment 1310679 [details]
ogv video thumbnail from ~/.cache/thumbnails/large
Comment 7 Bastien Nocera 2017-08-08 17:34:31 UTC 
The thumbnail captured matches the display, so it's not a problem in gdk-pixbuf. I'll reassign this to GStreamer as that's what the problem lives.
Comment 8 Wim Taymans 2017-10-09 07:41:36 UTC 
Not sure where the problem could be yet. Can you paste the output of the pipelines in this bug along with if it looks ok or not:

 gst-launch-1.0 -v videotestsrc ! ximagesink

 gst-launch-1.0 -v videotestsrc ! xvimagesink

 gst-launch-1.0 -v videotestsrc ! autovideosink
Comment 9 Tomas Hudziec 2017-10-09 16:32:04 UTC 
Created attachment 1336459 [details]
outputs of gst-launch commands

The first video starts and looks ok.
The second video does not start.
The third video starts and does not look ok, the colours are wrong, see #attachment 1310651 [details].
Comment 10 Wim Taymans 2017-10-10 08:06:55 UTC 
(In reply to Tomas Hudziec from comment #9)
> Created attachment 1336459 [details]
> outputs of gst-launch commands
> 
> The first video starts and looks ok.
> The second video does not start.
> The third video starts and does not look ok, the colours are wrong, see
> #attachment 1310651 [details].

This suggests a problem in GL conversion or some shader.
There must be other problems that can explain the wring color of the thumbnail, though.
Comment 12 RHEL Program Management 2021-01-15 07:40:31 UTC 
After evaluating this issue, there are no plans to address it further or fix it in an upcoming release.  Therefore, it is being closed.  If plans change such that this issue will be fixed in an upcoming release, then the bug can be reopened.
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