Glitches when using VLC playback

[Cimbali]

Reported by @complanar in #212:

[T]he embedded video from the pdf file above is played (current master, pip install, Linux Mint 20.2) […]

There is [a] glitch. As soon as the video is played, there are graphic artifacts inside the content window. Sometimes they change when paused or stopped, sometimes they change on window resize or similar action.

Additional version etc. info:

Info Dialog:

Media support uses GdkPixbuf gif player, GStreamer 1.16.2, VLC 3.0.9.2 Vetinari.
Python version 3.8.10 (default, Sep 28 2021, 16:10:42) [GCC 9.3.0]

Pympress Log:

INFO:pympress.app:Pympress: 1.7.0b1 ; Python: 3.8.10 ; OS: Linux 5.4.0-89-generic #100-Ubuntu SMP Fri Sep 24 14:50:10 UTC 2021 ; Gtk 3.24.20 ; GLib 2.64.2 ; Poppler 0.86.1 cairo ; Cairo 1.16.0 , pycairo 1.16.2
INFO:pympress.extras:Media support: GdkPixbuf gif player, GStreamer 1.16.2, VLC 3.0.9.2 Vetinari

[…] config reads:

[gst]
enabled = off
init_options = 
mime_types = 

[vlc]
enabled = on
init_options = --no-video-title-show,--no-xlib
mime_types = 

[Cimbali]

Apparently glitching is not fixed (yet?).

A good workaround as mentioned in 227 is to use a video area that matches the video in aspect ratio. In the PDF example here, the video aspect ratio is 16:9 but the video area is 1:1.

[ousia]

@Cimbali,

using Pympress-1.7.2 in Fedora 37, all glitches in VLC are gone.

Both GStreamer and VLC play video as expected (no problems with the video area).

So I think this issue might be closed.

Many thanks for the fix.