How To Install zvbi on CentOS 8
Introduction
In this tutorial we learn how to install zvbi on CentOS 8.
What is zvbi
ZVBI provides functions to capture and decode VBI data. The vertical blanking interval (VBI) is an interval in a television signal that temporarily suspends transmission of the signal for the electron gun to move back up to the first line of the television screen to trace the next screen field. The vertical blanking interval can be used to carry data, since anything sent during the VBI would naturally not be displayed; various test signals, closed captioning, and other digital data can be sent during this time period.
We can use yum or dnf to install zvbi on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install zvbi.
Install zvbi on CentOS 8 Using dnf
Update yum database with dnf using the following command.
sudo dnf makecache --refresh
The output should look something like this:
CentOS Linux 8 - AppStream 43 kB/s | 4.3 kB 00:00
CentOS Linux 8 - BaseOS 65 kB/s | 3.9 kB 00:00
CentOS Linux 8 - ContinuousRelease 43 kB/s | 3.0 kB 00:00
CentOS Linux 8 - Extras 23 kB/s | 1.5 kB 00:00
CentOS Linux 8 - FastTrack 40 kB/s | 3.0 kB 00:00
CentOS Linux 8 - HighAvailability 36 kB/s | 3.9 kB 00:00
CentOS Linux 8 - Plus 24 kB/s | 1.5 kB 00:00
CentOS Linux 8 - PowerTools 50 kB/s | 4.3 kB 00:00
Extra Packages for Enterprise Linux Modular 8 - x86_64 13 kB/s | 9.2 kB 00:00
Extra Packages for Enterprise Linux 8 - x86_64 24 kB/s | 8.5 kB 00:00
Metadata cache created.
After updating yum database, We can install zvbi using dnf by running the following command:
sudo dnf -y install zvbi
Install zvbi on CentOS 8 Using yum
Update yum database with yum using the following command.
sudo yum makecache --refresh
The output should look something like this:
CentOS Linux 8 - AppStream 43 kB/s | 4.3 kB 00:00
CentOS Linux 8 - BaseOS 65 kB/s | 3.9 kB 00:00
CentOS Linux 8 - ContinuousRelease 43 kB/s | 3.0 kB 00:00
CentOS Linux 8 - Extras 23 kB/s | 1.5 kB 00:00
CentOS Linux 8 - FastTrack 40 kB/s | 3.0 kB 00:00
CentOS Linux 8 - HighAvailability 36 kB/s | 3.9 kB 00:00
CentOS Linux 8 - Plus 24 kB/s | 1.5 kB 00:00
CentOS Linux 8 - PowerTools 50 kB/s | 4.3 kB 00:00
Extra Packages for Enterprise Linux Modular 8 - x86_64 13 kB/s | 9.2 kB 00:00
Extra Packages for Enterprise Linux 8 - x86_64 24 kB/s | 8.5 kB 00:00
Metadata cache created.
After updating yum database, We can install zvbi using yum by running the following command:
sudo yum -y install zvbi
How To Uninstall zvbi on CentOS 8
To uninstall only the zvbi package we can use the following command:
sudo dnf remove zvbi
zvbi Package Contents on CentOS 8
/usr/bin/zvbi-atsc-cc
/usr/bin/zvbi-chains
/usr/bin/zvbi-ntsc-cc
/usr/lib/.build-id
/usr/lib/.build-id/20
/usr/lib/.build-id/20/a3a739afcd75af6005927d85418da70c6c786b
/usr/lib/.build-id/3b
/usr/lib/.build-id/3b/7523db95b23f80d0ffe47b3b212b05070aa984
/usr/lib/.build-id/44
/usr/lib/.build-id/44/a37c25f91c9b32d96076685cc4de663d27b5a0
/usr/lib/.build-id/81
/usr/lib/.build-id/81/d5f2eef1aa6b8639f36bc1af1a340c0fc6a888
/usr/lib/.build-id/be
/usr/lib/.build-id/be/c09cce48f7b381e6fe1d8901234f2295c964d0
/usr/lib/.build-id/fc
/usr/lib/.build-id/fc/4bfdf2e5d59a2882a4abf03da7bbe62f929fdb
/usr/lib/systemd/system/zvbid.service
/usr/lib64/libzvbi-chains.so.0
/usr/lib64/libzvbi-chains.so.0.0.0
/usr/lib64/libzvbi.so.0
/usr/lib64/libzvbi.so.0.13.2
/usr/sbin/zvbid
/usr/share/doc/zvbi
/usr/share/doc/zvbi/AUTHORS
/usr/share/doc/zvbi/BUGS
/usr/share/doc/zvbi/COPYING
/usr/share/doc/zvbi/COPYING.LIB
/usr/share/doc/zvbi/ChangeLog
/usr/share/doc/zvbi/NEWS
/usr/share/doc/zvbi/README
/usr/share/doc/zvbi/TODO
/usr/share/locale/de/LC_MESSAGES/zvbi.mo
/usr/share/locale/en@boldquot/LC_MESSAGES/zvbi.mo
/usr/share/locale/en@quot/LC_MESSAGES/zvbi.mo
/usr/share/locale/es/LC_MESSAGES/zvbi.mo
/usr/share/locale/fr/LC_MESSAGES/zvbi.mo
/usr/share/locale/it/LC_MESSAGES/zvbi.mo
/usr/share/locale/nl/LC_MESSAGES/zvbi.mo
/usr/share/locale/pl/LC_MESSAGES/zvbi.mo
/usr/share/man/man1/zvbi-atsc-cc.1.gz
/usr/share/man/man1/zvbi-chains.1.gz
/usr/share/man/man1/zvbi-ntsc-cc.1.gz
/usr/share/man/man1/zvbid.1.gz
References
Summary
In this tutorial we learn how to install zvbi on CentOS 8 using yum and dnf.