FYI, I've now installed a new version (2013.04.01) of the "LIVE555 Streaming
Media" code that now (with a bit of hackery) supports proxying JPEG/RTP
streams. (Roman, thanks again for making your test stream available.)
Ross Finlayson
Live Networks, Inc.
http://www.live555.com/
OK, I figured out the problem - and it's bad news. Our proxying code currently
cannot handle the proxying of JPEG video (or, incidentally, AMR audio) streams.
The basic problem with proxying MJPEG is that the output of the "RTPSource"
object is a complete JPEG frame, which is not the data form
MJPEG streaming is tolerable if you're in a high-bandwidth environment with
very little packet loss. It's when people try to use it outside such
environments that they run into trouble.
And 'ONVIF' is an industry consortium (that we do not belong to) - not a
standards organizations. The relev
ay.
Alex
__
Od: "Ross Finlayson"
Komu: "LIVE555 Streaming Media - development & use"
Datum: 30.03.2013 01:25
Předmět: Re: [Live-devel] Unable to proxy mjpeg with live555ProxyServer
I have an IP camera that gives MJ
> No change :(
>
> After recompiling with OutPacketBuffer::maxSize = 20; at the start of
> main(), I get this:
Are your JPEG frames less than 20 bytes in size? If so, then I can't
explain your problem. Sorry.
Ross Finlayson
Live Networks, Inc.
http://www.live555.com/
__
No change :(
After recompiling with OutPacketBuffer::maxSize = 20; at the start of
main(), I get this:
$ live555ProxyServer -V rtsp://192.168.0.221/live2.sdp
LIVE555 Proxy Server
(LIVE555 Streaming Media library version 2013.03.23)
Opening connection to 192.168.0.221, port 554...
RTSP stre
OK, I think what's happening here is that although your JPEG frame rate is low,
your JPEG frame sizes are exceeding 6 bytes - the default buffer size
that's used by the proxy's "RTPSink"s.
Try adding the following line to "live555ProxyServer.cpp" - at the start of
"main()":
OutPacke
The MJPEG stream is only 3fps, there is no packet loss, it's a 1gbit
network and nothing else is streaming on the network.
Opening the camera RTSP stream with VLC works fine, no errors, opening the
RTSPRoxy stream with VLC, I get audio only. Opening direct from the camera
with openRTSP works just
> I have an IP camera that gives MJPEG over RTSP, I'm trying to proxy the
> stream with:
>
> $ live555ProxyServer rtsp://192.168.0.221/live2.sdp
>
> When I use the openRTSP client like so:
>
> $ ./openRTSP rtsp://127.0.0.1:10110/proxyStream
>
> The output looks like this: http://pastie.org/716
The debug output from live555ProxyServer looks like this:
$ live555ProxyServer -V rtsp://192.168.0.221/live2.sdp
LIVE555 Proxy Server
(LIVE555 Streaming Media library version 2013.03.07)
Opening connection to 192.168.0.221, port 554...
RTSP stream, proxying the stream "rtsp://192.168.0.221/live
Hi there,
I have an IP camera that gives MJPEG over RTSP, I'm trying to proxy the
stream with:
$ live555ProxyServer rtsp://192.168.0.221/live2.sdp
When I use the openRTSP client like so:
$ ./openRTSP rtsp://127.0.0.1:10110/proxyStream
The output looks like this: http://pastie.org/7167135 - liv
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