$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }

How to Install FFmpeg on RHEL Distro Guide

GNU/Linux RHEL Installing ffmpeg Guide

How to Install ffmpeg on RHEL GNU/Linux desktops – Step by step Tutorials.

And ffmpeg for RHEL is the Leading Multimedia Framework, able to Decode, Encode, Transcode, Mux, Demux, Stream, Filter and Execute pretty much Anything that humans and machines have created.

How to Install ffmpeg on RedHat GNU/Linux Distro Guide

GNU/Linux RHEL ffmpeg Installation Guide