How to get PasLibVlc to work on Linux?
lazarus / 21-General

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BosseB · 2023-11-21 10:41

I have been struggling with porting a Windows application based on
PasLibVLC to Linux on RaspberryPi.

Even though the application builds in Lazarus it won't show any video
at all...

So now I backed down to creating the very basic simple demo project as
described here:
http://lazplanet.blogspot.com/2018/01/how-to-make-simple-video-player-
in.html

I have tried it on several Raspberry Pi4B running various versions of
PiOS (32 and 64 bit) but they all do the same thing:
I start up the application and the main form is shown but without the
black player background.
Then I select an mp4 video and it does not change anything on the
screen.
When I hit Play nothing happens.
There are no errors or anything like that shown, it just does not
work.
On Windows it works just fine...

Note: On all of these RPi units VLC is installed as part of the
operating system and I can start VLC and select the same video as
above and it plays just fine.
So since VLC is installed and working I had hoped that my application
using the VLC library would work too...
My last Linux test was on RPi4B with PiOS 32 bit where VLC is version
3.0.18

It looks like something important is amiss here on Linux, but what is
it?

I have moved the sources to Windows using the attached tgz archive and
built it there on Lazarus 2.2.6

And here the executable runs like it is supposed to, starts up with a
black player panel and when I load a file it appears and can be played
as expected.

What can I do to fix this on Linux?????