Linux Application Server

I hit an XML / XSD pair, which I commonly modify with Altova XMLSpy.
I am hunting for a artefact to modify the XML finished the scheme in a kindred artefact to how XMLSpy entireness on Windows.
The server-side would hit to separate on apache / linux.
I am hopefully hunting for something unstoppered maker / liberated and that doesn’t order a aggregation of try to ordered up (that’s ground I don’t poverty XSL)

Does anyone undergo what’s the easiest artefact to do this?

Thanks in advance!

I’ve ffmpeg installed on my UNIX server. I am composition a php covering to modify my uploaded videos to flv on computer side. My playscript is executing fine, no errors, but no transmutation . module some embody support me?