How to plan h264 via VLC
https://reolink.com/how-to-play-h264-files-in-vlc/
- Upgrade your VLC media player to the latest version and update VLC codecs.
- Force H.264 demuxer in VLC preferences: Tools > Preferences > Show settings = All > Input/Codecs \ Demuxers: Demux module [H264 video demuxer].
- Convert H.264 files to VLC supported codec, like the MP4 format mentioned above. If the VLC won't play after the conversion, download the H.264 plugin as well.
- Rename the file extension to .mpg and try playing it in VLC to see if it works.