Hi,
I'm a little bit new on these subjects, so sorry for this. I reworded my
question below. Thanks in advance.
We're multicast streaming video from an IP camera over RTP. But when we do
this, we start streaming without having any RTSP PLAY command. And I guess our
switches have layer2 support, so they send data to everyone. Apparently this
makes our network very busy.
Is there any way not to stream multicast without having a RTSP PLAY command?
And also we want to cut multicast streaming when there is no listener for the
stream.
Is this possible? Or is it completely wrong thinking for a multicast stream?
Regards,
Ahmet.
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Contents of live-devel digest..."
Today's Topics:
1. RTP Multicast Streaming (Ahmet Duran Alincak)
2. Re: RTP Multicast Streaming (Ross Finlayson)
3. rtsp proxy error on first request (Yuri D'Elia)
4. Re: rtsp proxy error on first request (Ross Finlayson)
----------------------------------------------------------------------
Message: 1
Date: Mon, 16 Sep 2019 09:08:29 +0000
From: Ahmet Duran Alincak <aduranalin...@oncamgrandeye.com>
To: "live-devel@lists.live555.com" <live-de...@us.live555.com>
Subject: [Live-devel] RTP Multicast Streaming
Message-ID:
<vi1pr08mb354989aeb4e8848deec0caa4b2...@vi1pr08mb3549.eurprd08.prod.outlook.com>
Content-Type: text/plain; charset="us-ascii"
Kimden: Ahmet Duran Alincak
Tarih: Friday, September 13, 2019 6:06 PM
Kime: live-devel@lists.live555.com
Konu: RTP Multicast Streaming
Hello,
We're streaming video from an IP camera using multicast streaming over RTP. But
when we do this, we start streaming without having any RTP command. So, this
makes our network very busy.
Is there any way not to stream multicast without having a RTP play command? And
also we want to cut streaming when there is no listener for the stream.
Is this possible? Or is it completely wrong thinking for a multicast stream?
Regards,
Ahmet.
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Message: 2
Date: Mon, 16 Sep 2019 02:56:26 -0700
From: Ross Finlayson <finlay...@live555.com>
To: LIVE555 Streaming Media - development & use
<live-de...@us.live555.com>
Subject: Re: [Live-devel] RTP Multicast Streaming
Message-ID: <fb6063ad-9430-4311-9857-bf07b7661...@live555.com>
Content-Type: text/plain; charset=us-ascii
Ahmet,
You appear to be confused between RTSP (the control protocol, over TCP, that
controls a stream), and RTP/RTCP (the protocol that is used to deliver the
stream). Consequently, your question was rather unclear.
Please note the distinction between RTSP, and RTP/RTCP. Then please reword and
resubmit your question.
Ross Finlayson
Live Networks, Inc.
http://www.live555.com/
------------------------------
Message: 3
Date: Mon, 16 Sep 2019 15:21:48 +0200
From: "Yuri D'Elia" <wav...@thregr.org>
To: live-de...@us.live555.com
Subject: [Live-devel] rtsp proxy error on first request
Message-ID: <874l1ctlzn....@wavexx.thregr.org>
Content-Type: text/plain
I've been using live555ProxyServer for a while, starting a couple of years ago
and currently using 2019.08.28 from debian unstable.
I'm relaying an authenticated rtsp stream from a webcam.
I'm using proxyserver as follows:
live555ProxyServer -p 554 -R -U user pass
'rtsp://user:pass@cameraip/videostream'
Whenever I open the proxied video stream for the first time in a while, I get
the following from the client (ffplay, vlc, or anything else):
Playing: rtsp://server/proxyStream [ffmpeg/demuxer] rtsp: method PLAY
failed: 454 Session Not Found
If I reopen the video stream immediately after that, it works.
As long as I keep open a video stream somewhere, the stream starts without
issues.
I did some tests in the past:
- If I open the webcam stream directly, it always works, so even though
we're speaking about a cheapo no-brand usb webcam, I didn't have
issues when opening the stream directly from it.
- I cannot disable authentication on the webcam stream to test if
authentication is creating issues.
- I can (and tried) disabling authentication in proxyserver, but it made
no difference.
------------------------------
Message: 4
Date: Mon, 16 Sep 2019 10:59:03 -0700
From: Ross Finlayson <finlay...@live555.com>
To: LIVE555 Streaming Media - development & use
<live-de...@us.live555.com>
Subject: Re: [Live-devel] rtsp proxy error on first request
Message-ID: <f3d8b25c-6d6c-4f71-a890-497c41743...@live555.com>
Content-Type: text/plain; charset=utf-8
> On Sep 16, 2019, at 6:21 AM, Yuri D'Elia <wav...@thregr.org> wrote:
>
> I've been using live555ProxyServer for a while, starting a couple of
> years ago and currently using 2019.08.28 from debian unstable.
>
> I'm relaying an authenticated rtsp stream from a webcam.
> I'm using proxyserver as follows:
>
> live555ProxyServer -p 554 -R -U user pass
> 'rtsp://user:pass@cameraip/videostream?
Try instead:
live555ProxyServer -p 554 -u user pass 'rtsp://cameraip/videostream?
I.e., use "-u <username> <password>? (*not* -U), and don?t include the
username:password in the RTSP URL.
> Whenever I open the proxied video stream for the first time in a
> while, I get the following from the client (ffplay, vlc, or anything else):
>
> Playing: rtsp://server/proxyStream [ffmpeg/demuxer] rtsp: method PLAY
> failed: 454 Session Not Found
Try adding the -V (upper-case V) option, to get verbose diagnostic output, and
send us this diagnostic output, when the problem occurs.
Ross Finlayson
Live Networks, Inc.
http://www.live555.com/
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