How To Install libswscale4 on Ubuntu 18.04
Introduction
In this tutorial we learn how to install libswscale4 on Ubuntu 18.04.
What is libswscale4
libswscale4 is:
FFmpeg is the leading multimedia framework, able to decode, encode, transcode, mux, demux, stream, filter and play pretty much anything that humans and machines have created. It supports the most obscure ancient formats up to the cutting edge.
This library performs highly optimized image scaling and colorspace and pixel format conversion operations. Specifically, this library performs the following conversions:
- Rescaling is the process of changing the video size. Several rescaling options and algorithms are available. This is usually a lossy process.
- Pixel format conversion is the process of converting the image format and colorspace of the image, for example from planar YUV420P to RGB24 packed. It also handles packing conversion, that is converts from packed layout (all pixels belonging to distinct planes interleaved in the same buffer), to planar layout (all samples belonging to the same plane stored in a dedicated buffer or “plane”). This is usually a lossy process in case the source and destination colorspaces differ.
This package contains the runtime files.
There are three methods to install libswscale4 on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install libswscale4 Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install libswscale4 using apt-get by running the following command:
sudo apt-get -y install libswscale4
Install libswscale4 Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libswscale4 using apt by running the following command:
sudo apt -y install libswscale4
Install libswscale4 Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install libswscale4 using aptitude by running the following command:
sudo aptitude -y install libswscale4
How To Uninstall libswscale4 on Ubuntu 18.04
To uninstall only the libswscale4 package we can use the following command:
sudo apt-get remove libswscale4
Uninstall libswscale4 And Its Dependencies
To uninstall libswscale4 and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove libswscale4
Remove libswscale4 Configurations and Data
To remove libswscale4 configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge libswscale4
Remove libswscale4 configuration, data, and all of its dependencies
We can use the following command to remove libswscale4 configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libswscale4
References
Summary
In this tutorial we learn how to install libswscale4 package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
