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Bug 776492 - videoscale : Quality issue with few alogorithms(methods) 3,6,8,9
videoscale : Quality issue with few alogorithms(methods) 3,6,8,9
Status: RESOLVED OBSOLETE
Product: GStreamer
Classification: Platform
Component: gst-plugins-base
1.10.0
Other Linux
: Normal normal
: git master
Assigned To: GStreamer Maintainers
GStreamer Maintainers
Depends on:
Blocks:
 
 
Reported: 2016-12-26 08:17 UTC by Baby octopus
Modified: 2018-11-03 11:52 UTC
See Also:
GNOME target: ---
GNOME version: ---

Attachments
Input output files (2.11 MB, application/x-rar)
2016-12-26 08:17 UTC, Baby octopus 		Details

Description Baby octopus 2016-12-26 08:17:42 UTC 
Created attachment 342475 [details]
Input output files

Hi,

I'm seeing some quality issue with videoscale while downscaling from 1080p and 360p. Thick visible lines are seen at certain places. Also, periodic prints "can't find exact taps" are seen whenever such lines are seen in output

Pipeline : gst-top-1.0 gst-launch-1.0 filesrc location=input.jpg ! decodebin ! videoscale method=9 ! video/x-raw,width=640,height=360 ! videoconvert ! pngenc ! filesink location=/root/out.png

The issue is seen for method=3,6,8 and 9

Attached zip containing input/output files
Comment 1 Baby octopus 2018-01-09 10:10:33 UTC 
Ping. Can someone confirm this is an issue with videoscale?
Comment 2 Baby octopus 2018-05-13 10:09:05 UTC 
Ping. Anyone? :)
Comment 3 GStreamer system administrator 2018-11-03 11:52:36 UTC 
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/issues/320.