https://git.videolan.org/ says:
MOVING TO GITLAB
We're moving projects to code.videolan.org, notably:
- x264
- VLC for WinRT
- VLC for Android
- VLMC
- NPAPI-VLC
- libdvdread
- libdvdnav
- libdvdcss
- biTStream
- DVBlast
- libdvbpsi
- libbluray
- libudfread
- libaacs
- libdplus
Regarding x264 specifically (or at least), the problem is that it's impossible to clone the x264 repository on GitLab through git :–/
=> git clone git://code.videolan.org/videolan/x264.git
Cloning into 'x264'...
warning: blah-blah-blah
fatal: unable to connect to code.videolan.org:
code.videolan.org[0: 88.191.250.9]: errno=No error
Oh, yes, anyone can download the latest tarball or zipball through a web browser, but then the compiled binary doesn't show the correct version /commit number -_-