[streaming] How to do a live stream with minimum latency?

[Marco De Benedetto]

[Sorry, already posted for error on vlc list.]

Hi,
                                                                                                                                                            
I'm looking for a solution for a live stream, with the lowest lantency,
for remote physician consulting in a my LAN.
                                                                                                                                                            
This is the scenario: a physician receive the video stream from a remote
microscope and send instructions via telephone to the operator at the
microscope.  It is required that the physician could see the live stream
almost in real time so to guide the operator, via phone, on how to move
the slide; e.g.: "Move the slide to the left... stop *now* ..." etc.
                                                                                                                                                            
The output from the microscope is S-Video and the LAN is 100Mb switched.
                                                                                                                                                            
Now I am testing a Bt848 card with no hardware compression on Linux and
I have a latency of ~2s.
                                                                                                                                                            
I'd like to know if, with a good mpeg card, the latency can be reduced
near to zero and if there is something else that can be done to reach
this result.
                                                                                                                                                            
--
thank you,
Marco De Benedetto

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