我在 Ubuntu 22.04 上并尝试安装 gstreamer
sudo apt-get install libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev libgstreamer-plugins-bad1.0-dev gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gstreamer1.0-libav gstreamer1.0-tools gstreamer1.0-x gstreamer1.0-alsa gstreamer1.0-gl gstreamer1.0-gtk3 gstreamer1.0-qt5 gstreamer1.0-pulseaudio
yelds 版本 1.14：
gst-launch-1.0 --version
gst-launch-1.0 version 1.14.0
GStreamer 1.14.0
Unknown package origin
虽然我预计 1.20:
apt-show-versions libgstreamer1.0-dev
libgstreamer1.0-dev:amd64/jammy-updates 1.20.3-0ubuntu1 uptodate
sudo apt-get install libgstreamer1.0-dev
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
libgstreamer1.0-dev is already the newest version (1.20.3-0ubuntu1).
0 upgraded, 0 newly installed, 0 to remove and 8 not upgraded.
这是我尝试安装 gstreamer 的第三个 Ubuntu 全新安装。以前在同一台电脑上我用相同的步骤得到了 1.20 版本。在其他电脑上我得到了 1.14 或 1.16，我不记得了。我如何获得 1.20 版本以及我获得旧版本软件包的原因是什么？
这里是
/etc/apt/sources.list# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://archive.ubuntu.com/ubuntu jammy main restricted
# deb-src http://archive.ubuntu.com/ubuntu jammy main restricted
## Major bug fix updates produced after the final release of the
## distribution.
deb http://archive.ubuntu.com/ubuntu jammy-updates main restricted
# deb-src http://archive.ubuntu.com/ubuntu jammy-updates main restricted
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://archive.ubuntu.com/ubuntu jammy universe
# deb-src http://archive.ubuntu.com/ubuntu jammy universe
deb http://archive.ubuntu.com/ubuntu jammy-updates universe
# deb-src http://archive.ubuntu.com/ubuntu jammy-updates universe
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://archive.ubuntu.com/ubuntu jammy multiverse
# deb-src http://archive.ubuntu.com/ubuntu jammy multiverse
deb http://archive.ubuntu.com/ubuntu jammy-updates multiverse
# deb-src http://archive.ubuntu.com/ubuntu jammy-updates multiverse
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://archive.ubuntu.com/ubuntu jammy-backports main restricted universe multiverse
# deb-src http://archive.ubuntu.com/ubuntu jammy-backports main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu jammy-security main restricted
# deb-src http://archive.ubuntu.com/ubuntu jammy-security main restricted
deb http://archive.ubuntu.com/ubuntu jammy-security universe
# deb-src http://archive.ubuntu.com/ubuntu jammy-security universe
deb http://archive.ubuntu.com/ubuntu jammy-security multiverse
# deb-src http://archive.ubuntu.com/ubuntu jammy-security multiverse