Re: Live streaming server

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Author: Michael Butash
Date:  
To: plug-discuss
Subject: Re: Live streaming server





Ah, different media.  I guess people do
      watch video stuff.


      You talking personal or business?


      Yes, done some with like digital signage, live video feeds, etc. 
      I'm not sure if any non-commercial encoders out there, but we used
      an appliance solution from Wowza that could at a mega corp
      customer of mine.  I think they were (sadly) still using a windoze
      or mac box for the encoding for the raw video feed, but we did
      that for town hall effect, throwing up on tv's around the various
      offices, etc.  We did with unicast and multicast internally across
      our backbone using various url's, dmz replication for external
      use, etc.  


      The wowza servers were linux appliances that seemed pretty nice
      for commercial, the guy running them was a linux guy too so he'd
      have told me if they sucked, and he was hacking on them to do
      other stuff with support from the company.


      Don't ever deal with video transport muxing, but vlc is likely
      your best open/free solution.  If it can attach to an RTSP feed,
      it might be able to serve it as well, but something needs to
      encode video (hardware/software) and feed it via some streaming
      protocol, native rtsp would be good.


      The video guy there did have some high-end adapters for his
      high-end video camera (long forgotten brands) that would
      supposedly network rtsp feed direct over wifi from the camera, and
      he did use it, but not sure how production it was.  Have something
      like wowza servers to consume that feed and absorb/reproduce via
      mcast/unicast to others.  Getting dumb wifi dongles, apple tv's,
      etc on an enterprise network, or talking internally to network
      resources was always an issue.


      If a camera *can* network, it *should* provide a video feed I'd
      think, and everything seems network enabled these days.  Expecting
      or asking the likes of sony or cannon to comprehend networking
      services can at times can likely be, daunting.


      There should be something out there, I know there are dnla
      transcoders that can absorb other streams (rtsp?), like fuppes and
      a few others I forget.


      -mb



      On 09/08/2015 03:59 PM, Shawn Badger wrote:




Pulseaudio would work if I was doing sound, but I'm doing
          video and ironically no audio.



        Thanks though



On Tue, Sep 8, 2015 at 3:28 PM, Michael
          Butash 
<>
          wrote:



Pulseaudio can handle this to some extents without
                too much work, but careful, the networking and other
                encroaching processes will cause the real-time nature to
                be quirky.  I used to do this to some extent of success,
                using my ubuntu media server to stream audio from other
                hosts at it via multicast or unicast.  Tends to stutter
                by default as a habit, but at the time I *was* using it
                on a 400mhz ppc imac with ubuntu as the player source. 
                What could go wrong.


                Some audio chips are better than others too, ymmv there.


                Best thing is a dedicated box doing little else, but
                pulse with their rtp sink can do much of this, but
                you'll need to tweak with it some, giving it a real-time
                kernel, setting the priority of the devices, processes,
                setting pulse to do rt, etc.


                There are some people working around things like this on
                a raspberry pi with some of their spi audio chips that
                don't suck like the built-in ones.  Have to use
                real-time on those, but it works it seems.  Was going to
                do this for using pi's in audio distribution around my
                house as a pet project.


                Pulse is pretty cool for that, I use pavucontrol to mux
                streams with it.  You can do some interesting things
                patching like with jack actually if you toggle a few
                options, like exposing monitor sinks.  I have some
                security camers with 2 way audio on them, but use a
                horrid active-x based interface to use it.  I redirect
                the mic audio sink of the xp box pulse to a monitor of
                the output of my audio card, so I'll stream music that
                way around the house for giggles, and annoy my birds
                back.


                -mb 




                    On 09/08/2015 02:41 PM, Shawn Badger wrote:












I am looking for a way to stream an
                                RTSP stream to a bunch of people
                                internally, so kind of a locally hosted
                                live CDN.  I have looked into trying it
                                with VLC but it seems to only stream
                                files. 


                              Here are a couple of the base requiremnets
                              that I need to meet:



                            1. locally hosted


                          2. CLI to add/remove stream or just control


                        3. a single connection to the original stream




                      Does anyone know of a way to do this?









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