Need h264 support

[cxxzhang]

Any plan to support rfbEncodingH264?

[bk138]

Well if anyone would do a nicely crafted PR, I would take the time to review and merge it :-)

[Neustradamus]

A PR has been done by @iIIusi0n:

• libvncserver/libvncclient: add h264 support #677

[iIIusi0n]

I deleted my previous comments to avoid confusion caused by incorrect information.

Following the Open H.264 encoding specification in the rfbproto document, I have implemented H.264 support on both the server and client sides - compatible with implementations used by PiKVM’s VNC server and the TigerVNC client.

This feature still needs more extensive testing to confirm full compatibility.