20 Mar
2012
20 Mar
'12
6:34 a.m.
Hello,
Does anyone have any pointers towards resources for streaming audio and
video (it is intended for a conference type event, probably both for
lectures and performances). I had some luck with ffmpeg/ffserver and I
guess I could pursue this route but I wanted to see if there is anything
else. I had a quick look at ices2 but did not see any obvious way to stream
video with audio.
I don't mind getting my hands dirty, worst case scenario I will write some
scripts to allow those who will be in charge of streaming but I would
rather find a good solution, alternative to ustream and other such services.
Thank you in advance for any pointers.
./MiS
20 Mar
20 Mar
10:18 a.m.
On 03/20/2012 06:33 AM, Michal Seta wrote:
Hello,
Does anyone have any pointers towards resources for streaming audio and
video (it is intended for a conference type event, probably both for
lectures and performances). I had some luck with ffmpeg/ffserver and I
guess I could pursue this route but I wanted to see if there is anything
else. I had a quick look at ices2 but did not see any obvious way to stream
video with audio.
I don't mind getting my hands dirty, worst case scenario I will write some
scripts to allow those who will be in charge of streaming but I would
rather find a good solution, alternative to ustream and other such services.
Thank you in advance for any pointers.
For LAC we use icecast2 servers and a `dvgrab | ffmpeg2theora | oggfwd`
pipeline to send an A/V stream to it.
http://en.flossmanuals.net/FFmpeg2Theora/StreamingDV/
For conference streaming: http://dvswitch.alioth.debian.org/wiki/
For more /artistic/ projects: Pd-extended features [oggamp~] [oggcast~]
[pdp_icedthe~] [pdp_theonice~]
gstreamer can also send A/V to icecast:
`gst-launch videotestsrc ! theoraenc ! oggmux ! shout2send ip=...
port=... password=... mount=/test.ogg`
or
`... theoraenc ! oggmux ! fdsink | oggfwd server port password -p -g
"genre" -n "title" -d "description" test.ogv`
VLC features built-in camera capture and icecast/shoutcast support. It's
also one of the few FLOSS projects that supports QT capture on OSX: vlc
qtcapture://
--sout='#transcode{vcodec=theo,vb=128}:standard{access=shout,mux=ogg,dst=source:ICECASTPassword@server:port/mountpoint.ogg}'
In the not too distant future .webm will become a viable alternative,
but icecast2 does not yet support that OOTB on most distributions.
HTH,
robin
1:04 p.m.
Out of curiosity, to expand on this slightly, what are people using that is
GStreamer compatible? I have a BlackMagic Studio card that is going to be
accepting HD-SDI and I can purchase the driver for it, but the interface is
GStreamer compatible only is my understanding (Not a standard V4L or V4L2
interface) so I am curious if anyone has done similar.
Seablade
21 Mar
21 Mar
12:15 a.m.
On Tuesday, March 20, 2012 08:04:30 AM Thomas Vecchione wrote:
Out of curiosity, to expand on this slightly, what are
people using that is
GStreamer compatible? I have a BlackMagic Studio card that is going to be
accepting HD-SDI and I can purchase the driver for it, but the interface is
GStreamer compatible only is my understanding (Not a standard V4L or V4L2
interface) so I am curious if anyone has done similar.
Assuming you mean the "Decklink Studio Card", the drivers are free.
Anything can
interface with it that uses their API.
I use a DeckLink HD Extreme 3D for streaming quite a bit.
decklink-ffmpeg ----(pipe)----> ffmpeg h264/aac+/flv encoder ----(rtmp push)---->
CDN ----(rtmp pull)----> Web Browser w/ flash
-Reuben
12:53 a.m.
On 03/21/2012 12:16 AM, Reuben Martin wrote:
On Tuesday, March 20, 2012 08:04:30 AM Thomas
Vecchione wrote:
> Out of curiosity, to expand on this slightly, what are people using that is
> GStreamer compatible? I have a BlackMagic Studio card that is going to be
> accepting HD-SDI and I can purchase the driver for it, but the interface is
> GStreamer compatible only is my understanding (Not a standard V4L or V4L2
> interface) so I am curious if anyone has done similar.
You can always get out of gstreamer:
gst-launch ... ! fdsink \
| ffmpeg # or sth.
Assuming you mean the "Decklink Studio
Card", the drivers are free. Anything can
interface with it that uses their API.
I use a DeckLink HD Extreme 3D for streaming quite a bit.
decklink-ffmpeg ----(pipe)----> ffmpeg h264/aac+/flv encoder ----(rtmp push)---->
CDN ----(rtmp pull)----> Web Browser w/ flash
interesting. Would you mind sharing the ffmpeg commandline?
What software do you use for transport segmenting?
May I ask what content delivery network you are using? Are you paying
for it or did you roll your own?
I've recently experimented a bit with
https://github.com/carsonmcdonald/HTTP-Live-Video-Stream-Segmenter-and-Dist…
--
http://blog.kyri0s.org/post/271121944/deploying-apples-http-live-streaming-…
It worked, but not reliably. At some point I gave up and went back to
dual solution: ffserver (flv, x264, nellymoser - single-server) and
icecast2 (ogg, vorbis, theora - multiple servers w/relay). Both driven
at the same time by custom c code (basically a fancy 'tee (1)'). It
still leaves default apple handhelds in the dark; but I learned to stop
worrying and love punishing proprietary lock-in :)
Cheers!
robin
2:27 a.m.
On Tue, Mar 20, 2012 at 7:16 PM, Reuben Martin <reuben.m(a)gmail.com> wrote:
Assuming you mean the "Decklink Studio Card", the drivers are free.
Anything can
interface with it that uses their API.
I use a DeckLink HD Extreme 3D for streaming quite a bit.
decklink-ffmpeg ----(pipe)----> ffmpeg h264/aac+/flv encoder ----(rtmp
push)----> CDN ----(rtmp pull)----> Web Browser w/ flash
Interesting, so ffmpeg has code for interfacing with the Blackmagic cards?
That is good to know.
interesting. Would you mind sharing the ffmpeg commandline?
What software do you use for transport segmenting?
Seconded.
Seablade
20 Mar
20 Mar
1:29 p.m.
On 03/20/2012 06:33 AM, Michal Seta wrote:
Hello,
Does anyone have any pointers towards resources for streaming audio and
video (it is intended for a conference type event, probably both for
lectures and performances). I had some luck with ffmpeg/ffserver and I
guess I could pursue this route but I wanted to see if there is anything
else. I had a quick look at ices2 but did not see any obvious way to stream
video with audio.
I don't mind getting my hands dirty, worst case scenario I will write some
scripts to allow those who will be in charge of streaming but I would
rather find a good solution, alternative to ustream and other such services.
Thank you in advance for any pointers.
I forgot to mention http://www.bigbluebutton.org/
4632
days inactive
4633
days old
linux-audio-user@lists.linuxaudio.org
6 comments
4 participants
participants (4)
-
Michal Seta -
Reuben Martin -
Robin Gareus -
Thomas Vecchione