[hackerspaces] The Beginning source material? dvswitch outptut to an online streaming service?

Matt Joyce matt at nycresistor.com
Thu Feb 24 10:02:14 CET 2011

Funny I wrote an email like that in 2002.  Just before we did some demo work
at internet 2.

On Wed, Feb 23, 2011 at 8:03 PM, Marc Juul <marcjc at gmail.com> wrote:

> On Wed, Feb 23, 2011 at 4:51 PM, Andrew Orr <andrew at andreworr.ca> wrote:
> > The live streaming depends on
> > if we can get dvswitch set up to stream online somewhere the night
> before.
> > Has anyone done this before using an online service like ustream.tv,
> > justin.tv etc? Running our own icecast is a possibility but we're not
> sure
> > of the bandwidth available at the venue, so this might not work out.
> I haven't tried this with ustream.tv or justin.tv, but you should be
> able to get it to work. You will need an FLV stream with H.264 video
> an MP3 audio being sent using the RTMP protocol.
> You can take care of everything except RTMP using ffmpeg, then send
> the ffmpeg output to a local RTMPd (open source rtmp server) using TCP
> and use RTMPd's "proxypublish" functionality to forward the stream to
> ustream.tv using the RTMP protocol.
> This works directly from dvgrab, so I'm guessing it will work from
> dvswitch:
>  dvgrab - | ffmpeg -i - -vcodec libx264 -vpre superfast -acodec
> libmp3lame -f flv -ar 22050 -deinterlace "tcp://localhost:6666"
> You probably want to alter "-vpre superfast" for better quality.
> Then set up RTMPd. It should accept incoming connections on localhost
> port 6666 using the default config file.
> Have a look at this thread for some info on how to set up proxypublish
> for forwarding to ustream/justin:
> http://groups.google.com/group/c-rtmp-server/browse_thread/thread/6f4f862a732a9183
> You might run into trouble with the stream name, since I think
> ustream.tv expects a specific flv stream name. If you do, I have a
> patched ffmpeg that supports -sname to set stream name from the
> command line.
> And yeah, I know it's fairly sucky that we have to wade through
> setup/configuration hell just to get some live video on the web.
> We're working to remedy the situation.
> Soon.
> Sooooon...
> --
> Juul
> _______________________________________________
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