[
http://dev.sourcefabric.org/browse/LS-257?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13528#action_13528
]
Samuel Mimram edited comment on LS-257 at 1/28/13 12:13 PM:
------------------------------------------------------------
By any chance, would you know a good open-source library which would do RTMP /
RTSP?
Replying to [comment:1 smimram]:
> By any chance, would you know a good open-source library which would do RTMP
> / RTSP?
Gnash does
Replying to [comment:2 theneb]:
> Replying to [comment:1 smimram]:
> > By any chance, would you know a good open-source library which would do
> > RTMP / RTSP?
> Gnash does
It seems to be really not mature software. Moreover, I couldn't find a shared
library for gnash (we don't want to embed gnash's code...). I think that the
best way to go would be to stream to cygnal who would itself broadcast the
stream. However I've not been able to use cygnal. Did you manage to make it
work?
Replying to [comment:3 smimram]:
> Replying to [comment:2 theneb]:
> > Replying to [comment:1 smimram]:
> > > By any chance, would you know a good open-source library which would do
> > > RTMP / RTSP?
> > Gnash does
>
> It seems to be really not mature software. Moreover, I couldn't find a shared
> library for gnash (we don't want to embed gnash's code...). I think that the
> best way to go would be to stream to cygnal who would itself broadcast the
> stream. However I've not been able to use cygnal. Did you manage to make it
> work?
The Adobe Real-Time Messaging Protocol specification is
[http://www.adobe.com/devnet/rtmp/ soon to be released]. There is also a
[http://www.adobe.com/aboutadobe/pressroom/pressreleases/200901/012009RTMP.html
press release] by Adobe on that.
As soon as the specification is released, I'll see if I can make a demuxer for
that.
Cool, I would like to move to Flash / Red5 as Icecast isn't really cut out for
my needs, and we're pushing it a little. I'm looking seriously at Red5, so
would be willing to test where possible. (Otherwise, I'm looking at coding a
Java App using Red5 libs + JACK libs to take Liq output and shift it to Red5,
or find some way for Flash to play nicely and read from JACK instead of
hardware)
Looking back on this post, it seems Red5/FMS server is gaining market share far
quicker than RTSP based systems like DSS/Helix, and is more accessible too.
As I see it now, in Linux recording in flash is limited, so being able to use
LiquidSoap would be an advantage as it's JACK'ified (which also has some nice
benefits when testing remotely over VPN).
I number of open source apps seem to deal with RTMP already, I wonder if those
would work as a stop-gap/reference until the official docs get released. (I'm
thinking Red5 libs, though these will be heavy to read being Java, or
http://code.google.com/p/rubyizumi/downloads/list which is easier to read being
Ruby).
After a quick snoop to see if I could get Flash to record via JACK, I found the
Linux plugin doesn't seem to be able to allow you to select a mic source (Just
has "Linux Microphone" which is the first default mic input it finds,
regardless if it's right or not, irrespective of what underlaying Linux sound
system is used). As a result, I'm hoping Liquidsoap can fill the gap for this
annoyance. (And I would guess there would be a number of Red5 users who would
be thankful/looking for this, especially if you get video support in for the
long term, though my concern is mainly just audio for now). I assume you can go
down the route of using codecs like AAC rather than Nelly Moser (which I think
would give you hell from an encoding perspective)
was (Author: omniton):
By any chance, would you know a good open-source library which would do
RTMP / RTSP?
Replying to [comment:1 smimram]:
> By any chance, would you know a good open-source library which would do RTMP
> / RTSP?
Gnash does
Replying to [comment:2 theneb]:
> Replying to [comment:1 smimram]:
> > By any chance, would you know a good open-source library which would do
> > RTMP / RTSP?
> Gnash does
It seems to be really not mature software. Moreover, I couldn't find a shared
library for gnash (we don't want to embed gnash's code...). I think that the
best way to go would be to stream to cygnal who would itself broadcast the
stream. However I've not been able to use cygnal. Did you manage to make it
work?
Replying to [comment:3 smimram]:
> Replying to [comment:2 theneb]:
> > Replying to [comment:1 smimram]:
> > > By any chance, would you know a good open-source library which would do
> > > RTMP / RTSP?
> > Gnash does
>
> It seems to be really not mature software. Moreover, I couldn't find a shared
> library for gnash (we don't want to embed gnash's code...). I think that the
> best way to go would be to stream to cygnal who would itself broadcast the
> stream. However I've not been able to use cygnal. Did you manage to make it
> work?
The Adobe Real-Time Messaging Protocol specification is
[http://www.adobe.com/devnet/rtmp/ soon to be released]. There is also a
[http://www.adobe.com/aboutadobe/pressroom/pressreleases/200901/012009RTMP.html
press release] by Adobe on that.
As soon as the specification is released, I'll see if I can make a demuxer for
that.
Cool, I would like to move to Flash / Red5 as Icecast isn't really cut out for
my needs, and we're pushing it a little. I'm looking seriously at Red5, so
would be willing to test where possible. (Otherwise, I'm looking at coding a
Java App using Red5 libs + JACK libs to take Liq output and shift it to Red5,
or find some way for Flash to play nicely and read from JACK instead of
hardware)
Looking back on this post, it seems Red5/FMS server is gaining market share far
quicker than RTSP based systems like DSS/Helix, and is more accessible too.
As I see it now, in Linux recording in flash is limited, so being able to use
LiquidSoap would be an advantage as it's JACK'ified (which also has some nice
benefits when testing remotely over VPN).
I number of open source apps seem to deal with RTMP already, I wonder if those
would work as a stop-gap/reference until the official docs get released. (I'm
thinking Red5 libs, though these will be heavy to read being Java, or
http://code.google.com/p/rubyizumi/downloads/list which is easier to read being
Ruby).
After a quick snoop to see if I could get Flash to record via JACK, I found the
Linux plugin doesn't seem to be able to allow you to select a mic source (Just
has "Linux Microphone" which is the first default mic input it finds,
regardless if it's right or not, irrespective of what underlaying Linux sound
system is used). As a result, I'm hoping Liquidsoap can fill the gap for this
annoyance. (And I would guess there would be a number of Red5 users who would
be thankful/looking for this, especially if you get video support in for the
long term, though my concern is mainly just audio for now). I assume you can go
down the route of using codecs like AAC rather than Nelly Moser (which I think
would give you hell from an encoding perspective)
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> RTSP / RTMP support
> -------------------
>
> Key: LS-257
> URL: http://dev.sourcefabric.org/browse/LS-257
> Project: Liquidsoap
> Issue Type: New Feature
> Components: Liquidsoap
> Reporter: Romain Beauxis
>
> I gather there some conversation about supporting RTMP (Flash), which would
> be nice. I was also thinking RTSP support would also be good so people can
> stream to HelixServer / Darwin Streaming Server. I find that clients seem to
> drift with Icecast as there is no way to sync the client stream with the
> server, which doesn't make Icecast ideal for real time applications.
> Supporting RTP with telephony codecs such as GSM is another route worth
> going, which sort of overlaps with what ticket 125 mentions.
> Just thought I'd throw this in the bag.
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