Rapsbian and Qt5

I’m developing an application using qt5.11 on Raspberry Pi 3. My code works on my laptop with ubuntu 18.xx. When I put my code on the RPi, I can compile it with the Makefile make -j2 but when I want to launch my program I get the following message: 16:02:44: Starting /home/pi/build-VideoProcessor-Desktop-Debug/VideoProcessor… **libEGL warning: DRI2:…

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ffmpeg merge videos including one with alpha transparency with mp3 audio

I have two video tracks (one with alpha transparency and both without audio) and an audio file, I need to put them all together with the same beginning. so: I only managed to mix the two videos together with this code: ffmpeg -i “alpha.mov” -i “background.mov” -filter_complex “nullsrc=size=1920×1080 [base]; [0:v] setpts=PTS-STARTPTS [top]; [1:v] setpts=PTS-STARTPTS [bottom];…

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CentOS Ethernet not working after kernel update

After updating the CentOS 7.7 kernel from 3.10.0-957.27.2 to 3.10.0-1062.9.1, the Ethernet stopped working. The LEDs on the Ethernet port wouldn’t light up and any attempt to ping anything resulted in a “host not reachable”. Everything looked ok with the files in /etc/sysconfig/network-scripts, and the output in /var/log/messages seemed to indicate that the interface was…

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