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Bug 788626 - Border artifact in simple pipelines.
Border artifact in simple pipelines.
Status: RESOLVED DUPLICATE of bug 756320
Product: GStreamer
Classification: Platform
Component: gstreamer (core)
1.x
Other Linux
: Normal normal
: git master
Assigned To: GStreamer Maintainers
GStreamer Maintainers
Depends on:
Blocks:
 
 
Reported: 2017-10-07 03:19 UTC by btsloane
Modified: 2017-10-07 12:43 UTC
See Also:
GNOME target: ---
GNOME version: ---


Attachments
Output with -v flag and GST_DEBUG=xvimage*:6 (744.88 KB, text/plain)
2017-10-07 03:19 UTC, btsloane
Details
Screenshot (99.70 KB, image/png)
2017-10-07 03:21 UTC, btsloane
Details

Description btsloane 2017-10-07 03:19:41 UTC
Created attachment 361081 [details]
Output with -v flag and GST_DEBUG=xvimage*:6

Simple video pipelines render with a 1px green border around the entire image.

I have seen this with the following two pipelines:

gst-launch-1.0 filesrc location=/ram/test.mkv !  decodebin ! videoconvert ! xvimagesink

gst-launch-1.0 -v playbin uri="file:///ram/test.mkv"

Adding a videocrop element to the pipeline avoids the issue. Even if I only crop one side, the border disapears on all 4 (cropping 0 sides leaves the border):

gst-launch-1.0 filesrc location=/ram/test.mkv !  decodebin ! videoconvert ! videocrop left=1 ! xvimagesink

The border is generally green, but will switch to being multi-colored with no pattern that I have noticed.
Comment 1 btsloane 2017-10-07 03:21:58 UTC
Created attachment 361082 [details]
Screenshot

My screenshot software failed to caputure the artifact at the top and bottom of the video (which as also the top and bottom of the window). Despite this, the artifact was visible at the top and bottom as well.
Comment 2 Nicolas Dufresne (ndufresne) 2017-10-07 12:43:23 UTC
Thanks for taking the time to report this.
This particular bug has already been reported into our bug tracking system, but please feel free to report any further bugs you find.

*** This bug has been marked as a duplicate of bug 756320 ***