[chbot] Live video stream

[Stephen Irons]

We have a family celebration coming up in January, and want to be able to
provide a live audio and video stream from the event for people who cannot
be there.

I have the following available:

   - Video camera with microphone input, microphone, and AV capture device
   that are compatible with V4L2
   - Laptop running Ubuntu 14.04 desktop
   - Mobile data modem
   - Low-spec VPS (2 core, 4G RAM, 1 Gbps network connection, 5 TB
   bandwidth per month) running Ubuntu 10.04 server

The plan would be for the laptop to capture the audio and video which will
send it to the server. Absent family and friends can then connect to the
server, preferably using a web browser, to watch the proceedings. There
will probably be 4 or 5 families watching from around the world.

Some rationale:

   - I prefer the video camera, microphone and capture device to a web cam
   because it should give more control over the picture and sound quality.
   - I prefer the video camera, microphone and capture device to an IP cam
   because I don't want to spend the money.
   - I don't want all of the guests connecting directly to the laptop, as
   all their traffic goes via the mobile data modem -- I suspect costs will
   mount up quickly, though I should estimate what it will cost.

Now, VLC can capture the video and stream it to another instance of VLC
using a few different protocols. I have not had success with the audio yet,
but it might just need to swear at it a bit more.

Motion and ZoneMinder might be appropriate, but ZoneMinder does not support
audio.
Can anyone offer any advice, before I spend days playing with things: what
software to use, what to avoid, what have I not thought of, will my
low-spec VPS be adequate to server 5 streams, any other thoughts?
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