dozob

$ sudo apt update && sudo apt upgrade
$ sudo apt-get dist-upgrade

glib 설치

1. glib download

https://download.gnome.org/sources/glib/

2. 압축 풀기

~$ tar xvf glib-2.9.6.tar.gz

3. 구성

~$ cd glib-2.9.6/
~/glib-2.9.6$ ./configure

4. configure 중간에 없다고 오류나는 패키지들 설치

http://www.gnu.org/software/gettext/gettext.html

~$ sudo apt-get install gettext

GStreamer 설치

$ sudo apt update

설치

$ sudo apt install libgstreamer1.0-0 libgstreamer1.0-dev gstreamer1.0-tools gstreamer1.0-doc gstreamer1.0-x gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly  gstreamer1.0-alsa gstreamer1.0-libav gstreamer1.0-gl gstreamer1.0-gtk3 gstreamer1.0-qt5 gstreamer1.0-pulseaudio libgstreamer-plugins-base1.0-dev

확인

$ gst-inspect-1.0 --version

웹캠 확인

$ gst-launch-1.0 autovideosrc device=/dev/video0 ! autovideosink

샘플코드

#include <gst/gst.h>
#include <iostream>

// compile & run
// $ g++ gstreamer_example.cpp -o gstreamer_example `pkg-config --cflags --libs gstreamer-1.0`
// $ ./gstreamer_example

int main() 
{
    GstElement *pipeline, *source, *sink;
    GstBus *bus;
    GstMessage *msg;
    GstStateChangeReturn ret;

    gst_init(NULL, NULL);

    pipeline = gst_pipeline_new ("pipeline");
    source = gst_element_factory_make ("autovideosrc", "source");
    sink = gst_element_factory_make ("autovideosink", "sink");

    if (!pipeline || !source || !sink) 
    {
        std::cout << "not all elements created: pipeline[" << !pipeline
            << "] source[" << !source
            << "] sink["<< !sink << "]" << std::endl;
        return -1;
    }

    g_object_set(G_OBJECT (sink), "sync", FALSE, NULL);

    gst_bin_add_many (GST_BIN (pipeline), source, sink, NULL);
    if (gst_element_link (source, sink) != TRUE) 
    {
        std::cout << "Elements could not be linked." << std::endl;
        gst_object_unref (pipeline);
        return -1;
    }

    ret = gst_element_set_state (pipeline, GST_STATE_PLAYING);
    if (ret == GST_STATE_CHANGE_FAILURE) 
    {
        std::cout << "Unable to set the pipeline to the playing state." << std::endl;
        gst_object_unref (pipeline);
        return -1;
    }

    bus = gst_element_get_bus (pipeline);

    std::cout << "press CTRL + C" << std::endl;

    for (;;);

    gst_object_unref(bus);
    gst_element_set_state(pipeline, GST_STATE_NULL);
    gst_object_unref(pipeline);
}

컴파일 및 실행

$ g++ gstreamer_example.cpp -o gstreamer_example `pkg-config --cflags --libs gstreamer-1.0`

$ ./gstreamer_example

$ wget -qO - https://packagecloud.io/AtomEditor/atom/gpgkey | sudo apt-key add -
$ sudo sh -c 'echo "deb [arch=amd64] https://packagecloud.io/AtomEditor/atom/any/ any main" > /etc/apt/sources.list.d/atom.list'
$ sudo apt-get update
$ sudo apt-get install atom

WSL2가 설치되었고 Ubuntu(20.04 LTS)도 설치되어 있음.

Xming X Server for Windows 설치

(2021.10.19 - Xming-6-9-0-31-setup.exe)

https://sourceforge.net/projects/xming/

XLaunch 실행

Windows 보안 경고 화면이 뜨면 모두 체크하고 [액세스 허용] 클릭

만약 체크를 잘못하고 넘어간 경우:

"제어판 > 시스템 및 보안 > Windows Defender 방화벽"

WSL2 > Ubuntu 상에서 DNS 서버 IP 주소 확인

$ cat /etc/resolv.conf
# This file was automatically generated by WSL. To stop automatic generation of this file, add the following entry to /etc/wsl.conf:
# [network]
# generateResolvConf = false
nameserver 172.20.96.1

.bashrc에 추가, 설정 적용

$ echo "export DISPLAY=172.20.96.1:0" >> ~/.bashrc
$ source ~/.bashrc

gedit 패키지 설치 후 확인

$ sudo apt-get update
$ sudo apt-get install gedit
$ gedit

GUI 프로그램 설치

Nautilus : 리눅스 기본 파일 관리자

File Roller : 압축 관리 프로그램

$ sudo apt -y install nautilus file-roller

Atom : text 편집기

$ wget -qO - https://packagecloud.io/AtomEditor/atom/gpgkey | sudo apt-key add -
$ sudo sh -c 'echo "deb [arch=amd64] https://packagecloud.io/AtomEditor/atom/any/ any main" > /etc/apt/sources.list.d/atom.list'
$ sudo apt-get update
$ sudo apt-get install atom

설치된 패키지 확인

$ dpkg --get-selections

Across the different distros of Linux, there are different packages you'll need to install:

• Debian, Ubuntu, popOS, and other Debian-based distributions:

$ sudo apt-get update
$ sudo apt-get install build-essential tar curl zip unzip

• CentOS

$ sudo yum install centos-release-scl
$ sudo yum install devtoolset-7
$ scl enable devtoolset-7 bash

Ubuntu

$ sudo apt-get install bison
$ sudo apt-get install pkg-config

$ sudo apt-get install python3-distutils

커널에 대한 정보

uname -a

OS 버전에 대한 정보

:~$ cat /etc/issue
Ubuntu 20.04.3 LTS \n \l

:~$ cat /etc/*release*
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=20.04
DISTRIB_CODENAME=focal
DISTRIB_DESCRIPTION="Ubuntu 20.04.3 LTS"
NAME="Ubuntu"
VERSION="20.04.3 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04.3 LTS"
VERSION_ID="20.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal

:~$ getconf LONG_BIT
64

:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 20.04.3 LTS
Release:        20.04
Codename:       focal