fedora安装视频解码器
因为一些法律、专利的原因，fedora没有内置很多视频解码器，导致视频不能播放，安装了即可。
首先启用 rpm fusion
sudo dnf install https://mirrors.rpmfusion.org/free/fedora/rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm https://mirrors.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-$(rpm -E %fedora).noarch.rpm
接着安装解码器和其他组件
sudo dnf install libavcodec-freeworld gstreamer1-vaapi gstreamer1-plugins-base gstreamer1-plugins-good gstreamer1-plugins-good-extras gstreamer1-plugins-ugly-free gstreamer1-plugins-bad-free gstreamer1-libav gstreamer1-plugins-bad-freeworld gstreamer1-plugins-ugly gstreamer1-plugin-openh264 pipewire-gstreamer svt-vp9-libs x265 x265-libs