User manual

backends include OpenGL, BeOS, OS/2, and DirectFB.
source https://www.cairographics.org/
dbus (1.11.2)
D-Bus is a simple system for interprocess communication and
coordination.
The "and coordination" part is important; D-Bus provides a
bus daemon that does things like:
- notify applications when other apps exit
- start services on demand
- support single-instance applications
Source: https://github.com/freedesktop/dbus
e2fsprogs (1.43.3)
e2fsprogs (sometimes called the e2fs programs) is a set of
utilities for maintaining the ext2, ext3 and ext4 file systems.
Since those file systems are often the default for Linux
distributions, it is commonly considered to be essential
software
Source: http://e2fsprogs.sourceforge.net/
expat (2.2.9)
xml paser; Expat is an XML parser library written in C. It is a
stream-oriented parser in which an application registers
handlers for things the parser might find in the XML document
(like start tags). An introductory article on using.
This piece of software is made available under the terms and
conditions of the Expat license, which can be found below.
Source: http://expat.sourceforge.net/
fuse (2.9.7)
JBoss Fuse is an open source ESB with capabilities based on
Apache Camel, Apache CXF, Apache ActiveMQ, Apache Karaf
and Fabric8 in a single integrated distribution.
Source https://github.com/jboss-fuse/fuse
gdb (8.2.1)
GDB, the GNU Project debugger, allows you to see what is
going on `inside' another program while it executes -- or what
another program was doing at the moment it crashed.
Source: https://www.sourceware.org/gdb/
glibc (2.30.0)
Any Unix-like operating system needs a C library: the library
which defines the “system calls” and other basic facilities such
as open, malloc, printf, exit...The GNU C library is used as the C
library in the GNU system and most systems with the Linux
kernel
This piece of software is made available under the terms and
conditions of the glibc license, which can be found below.
Source: http://www.gnu.org/software/libc/
gstreamer (1.18.3)
The GStreamer team is excited to announce a new major
feature release of your favourite cross-platform multimedia
framework!
Source: https://gstreamer.freedesktop.org/
libasound (1.1.8)
The Advanced Linux Sound Architecture (ALSA) provides audio
and MIDI functionality to the Linux operating system. ALSA has
the following significant features:
Efficient support for all types of audio interfaces, from
consumer sound cards to professional multichannel audio
interfaces.
Fully modularized sound drivers.
SMP and thread-safe design (PLEASE READ THIS).
User space library (alsa-lib) to simplify application
programming and provide higher level functionality.
Support for the older Open Sound System (OSS) API, providing
binary compatibility for most OSS programs.
Source: https://www.alsa-project.org/wiki/Main_Page
Libcurl (7.79.1)
HTTP client;libcurl is a free and easy-to-use client-side URL
transfer library, supporting FTP, FTPS, HTTP, HTTPS, SCP, SFTP,
TFTP, TELNET, DICT, LDAP, LDAPS, FILE, IMAP, SMTP, POP3 and
RTSP. libcurl supports SSL certificates, HTTP POST, HTTP PUT,
FTP uploading, HTTP form based upload, proxies, cookies,
user+password authentication (Basic, Digest, NTLM,
Negotiate, Kerberos4), file transfer resume, http proxy
tunneling and more!
This piece of software is made available under the terms and
conditions of the Libcurl license, which can be found below.
Source: http://curl.haxx.se/
libevent (1.4.13)
The libevent API provides a mechanism to execute a callback
function when a specific event occurs on a file descriptor or
after a timeout has been reached. Furthermore, libevent also
support callbacks due to signals or regular timeouts.
source: https://libevent.org/
libjpeg-turbo (2.1.1)
libjpeg-turbo is a JPEG image codec that uses SIMD
instructions (MMX, SSE2, AVX2, Neon, AltiVec) to accelerate
baseline JPEG compression and decompression on x86,
x86-64, Arm, and PowerPC systems, as well as progressive
JPEG compression on x86 and x86-64 systems. On such
systems, libjpeg-turbo is generally 2-6x as fast as libjpeg, all
else being equal. On other types of systems, libjpeg-turbo can
still outperform libjpeg by a significant amount, by virtue of its
highly-optimized Huffman coding routines. In many cases, the
performance of libjpeg-turbo rivals that of proprietary high-
speed JPEG codecs.
Source: https://libjpeg-turbo.org/
libjpg (6b)
This library is used to perform JPEG decoding tasks.
This piece of software is made available under the terms and
conditions of the libjpg license, which can be found below.
Source: http://www.ijg.org/
libpng (1.0.1)
libpng -THE reference library for reading, displaying, writing
and examining png Image Network Graphics.
This piece of software is made available under the terms and
conditions of the libpng license, which can be found below.
Source: http://sourceforge.net/projects/libpng/files/
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