How To Install libswresample2 on Debian 9
Introduction
In this tutorial we learn how to install libswresample2 on Debian 9.
What is libswresample2
libswresample2 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 provides performs highly optimized audio resampling, rematrixing and sample format conversion operations. Specifically, this library performs the following conversions:
- Resampling is the process of changing the audio rate, for example from a high sample rate of 44100Hz to 8000Hz. Audio conversion from high to low sample rate is a lossy process. Several resampling options and algorithms are available.
- Rematrixing is the process of changing the channel layout, for example from stereo to mono. When the input channels cannot be mapped to the output streams, the process is lossy, since it involves different gain factors and mixing. Various other audio conversions (e.g. stretching and padding) are enabled through dedicated options.
- Format conversion is the process of converting the type of samples, for example from 16-bit signed samples to unsigned 8-bit or float samples. It also handles packing conversion, when passing from packed layout (all samples belonging to distinct channels interleaved in the same buffer), to planar layout (all samples belonging to the same channel stored in a dedicated buffer or “plane”).
This package contains the runtime files.
There are three methods to install libswresample2 on Debian 9. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install libswresample2 Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install libswresample2 using apt-get by running the following command:
sudo apt-get -y install libswresample2
Install libswresample2 Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libswresample2 using apt by running the following command:
sudo apt -y install libswresample2
Install libswresample2 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 Debian. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install libswresample2 using aptitude by running the following command:
sudo aptitude -y install libswresample2
How To Uninstall libswresample2 on Debian 9
To uninstall only the libswresample2 package we can use the following command:
sudo apt-get remove libswresample2
Uninstall libswresample2 And Its Dependencies
To uninstall libswresample2 and its dependencies that are no longer needed by Debian 9, we can use the command below:
sudo apt-get -y autoremove libswresample2
Remove libswresample2 Configurations and Data
To remove libswresample2 configuration and data from Debian 9 we can use the following command:
sudo apt-get -y purge libswresample2
Remove libswresample2 configuration, data, and all of its dependencies
We can use the following command to remove libswresample2 configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libswresample2
Dependencies
libswresample2 have the following dependencies:
References
Summary
In this tutorial we learn how to install libswresample2 package on Debian 9 using different package management tools: apt, apt-get and aptitude.
