The module ngx_http_flv_module provides pseudo-streaming server-side support for Flash Video (FLV) files.

It handles requests with the start argument in the request URI’s query string specially, by sending back the contents of a file starting from the requested byte offset, and with the FLV header prepended.

This module is not built by default, it should be enabled with the --with-http_flv_module configuration parameter.

location ~ \.flv$ {
    flv;
}

Turns on module processing in a surrounding location.