This IS the Avid L2: [Avid-L2] Re: Semi OT: Screen sharing with clients

Tuesday, May 28, 2013

[Avid-L2] Re: Semi OT: Screen sharing with clients

Do you use Teradek too?

--- In Avid-L2@yahoogroups.com, "Edit B" <bouke@...> wrote:
>
> Biggest difference between multi and single is the behaviour of a reset.
> A single stream will require no restart of the stream at the viewers site (and side for that matter).
> So in case of any trouble, it's way more user friendly if the end user does not have to refresh their browser / restart the stream.
> For the encoder it does not really make a difference, the difficult part there is how to encode, not the push or pull.
>
> Bouke
>
> VideoToolShed
> van Oldenbarneveltstraat 33
> 6512 AS NIJMEGEN, the Netherlands
> +31 24 3553311
> ----- Original Message -----
> From: blafarm
> To: Avid-L2@yahoogroups.com
> Sent: Tuesday, May 28, 2013 7:25 PM
> Subject: [Avid-L2] Re: Semi OT: Screen sharing with clients
>
>
>
> > Right now, I'm trying out an encoder/decoder pair from Teradek (the 105,> 305 "Cube" series.)
>
> 250ms latency is impressive -- especially without using leased lines.
> And $3,000 is a very reasonable price considering the alternatives -- especially if you can effectively cut that price in half by just purchasing the encoder.
>
> Out of curiosity, what don't you like about it?
>
> How dependent is smooth VLC performance on the host computing platform?
>
> Lastly, is multicast capability built-in to the encoder (allowing for multiple VLC or decoder clients)?
>
> Thanks
>
> --- In Avid-L2@yahoogroups.com, Ryan Johnson <phinalcut@> wrote:
> >
> > I've been trying out lots of solutions for this application... It seems the
> > real problem is latency. Video streams can look great when buffering is an
> > option, but if real-time- or close to real-time- delivery is important, it
> > becomes a real challenge.
> >
> > In our case, the editors and clients require as close to real-time
> > performance as possible, so any latency above 1/2 second is considered
> > unusable. Typically, the remote clients will speak to the editor by
> > telephone while watching video/audio streamed separately from the output of
> > Avid or FCP.
> >
> > iChat (now "Messages") can be made to work using any DV device and an old
> > computer. This solution works fairly well... Latency is generally below 1/4
> > second, and it's certainly cheap to implement. However, video resolution is
> > limited to 640 x 480 (at best) and the stream bandwidth is capped at 2
> > Mb/s. Also, the codec in use is best suited for static 'talking-head' style
> > imagery, so if you're footage is handheld with lots of random motion, the
> > image falls apart pretty quickly.
> >
> > Right now, I'm trying out an encoder/decoder pair from Teradek (the 105,
> > 305 "Cube" series.) These boxes will stream 1080p23.98 at up to 10Mb/s. You
> > can stream from one box to another, or stream directly to VLC player using
> > RTSP.
> >
> > So far, the performance on these is pretty impressive. For whatever reason,
> > 720p59.94 yields lower latency than 1080p, so I am cross-converting the
> > output of the Avid to suit. The stream bandwidth is capped at 4 Mb/s, and
> > still looks good. There are a handful of encoder settings that can be
> > tweaked depending upon your application to get even lower latency, but I am
> > getting about 1/4 second from our local ISP to another remote network.
> >
> > Of course, the encoder/decoder pair runs about $3K, so it's not the
> > cheapest solution out there.
> >
> > I'm pretty sure if somebody had the time, a equivalent solution (or
> > better?) could be built using a reasonably fast Linux box running ffmpeg
> > and x264. Anybody?
> >
> >
> > -Ryan
> >
> >
> >
> >
> >
> >
> >
> > On Tue, May 28, 2013 at 1:43 AM, Christopher Pitbladdo <
> > avid@> wrote:
> >
> > > **
> > >
> > >
> > > No problem with the audio, as I recall (I only used it a handful of times,
> > > due to the overall lag).
> > >
> > > ***
> > > Christopher Pitbladdo
> > > Digital Buddy
> > > 496 Ferry Road
> > > Edinburgh
> > > EH5 2DL
> > > Tel: 0131 552 553 0
> > > Mob: 07590 570 683
> > > www.digitalbuddy.co.uk
> > >
> > > Credit list available at www.digitalbuddy.co.uk/creditlist.pdf
> > >
> > > On 28 May 2013, at 00:04, "Tony Breuer" <tonybreuer@> wrote:
> > >
> > > > Thanks, Christopher. I forgot about sling box. The audio stayed in sync
> > > though, right?
> > > >
> > > > --- In Avid-L2@yahoogroups.com, Christopher Pitbladdo <avid@> wrote:
> > > > >
> > > > > I hooked a SlingBox up to my Avid output for the same reason... In
> > > reality, the lag was a bit of an issue, typically they were around five
> > > seconds behind me.
> > > > >
> > > > >
> > > > >
> > > > > ***
> > > > > Christopher Pitbladdo
> > > > > Digital Buddy
> > > > >
> > > >
> > > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> > >
> > >
> >
> >
> > [Non-text portions of this message have been removed]
> >
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