ogv
What is a .ogv file?
video/ogg
OGV is the video variant of the Ogg container, typically carrying Theora video with Vorbis or Opus audio in a free, open format. It was an early royalty-free option for HTML5 video before WebM and MP4 became dominant. It is now used mainly for open-format compatibility.
How to use a .ogv file
Use an example OGV to test Ogg container demuxing, Theora decoding, HTML5 video fallback support, and conversion to WebM or MP4.