rtsp2web - How does it work?

[Bluemax]

Hi,
is there any documentation how to set up rtsp2web? I've compiled and installed rtsp2web but not sure what to do with it (it is not shipped with "zoneminder-dbg/jammy 1.37.63~20240906093428-jammy amd64" (iconnor/zoneminder-master) and the "demo:demo" url showing in the logs doesn't work (or connect to anything) out-of-the-box. There also is no new process/port listening).

Zoneminder somewhat reacts to my rtsp2ws server (Attempted to send to webroot:www@127.0.0.1:8080/stream/1/info and got Server returned nothing (no headers, no data)) but i don't know what i'm doing here.

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$ rtsp2ws -c /usr/local/share/rtsp2ws/keycert.pem rtsp://192.168.1.123/ISAPI/streaming/channels/101
Started on port:8080s webroot:www
[:0] sslize error: error:0A00009C:SSL routines::http request
[:0] sslize error: error:0A00009C:SSL routines::http request
[:0] sslize error: error:0A00009C:SSL routines::http request
[:0] sslize error: error:0A00009C:SSL routines::http request
[:0] sslize error: error:0A00009C:SSL routines::http request

Edit:
When i look at RTSPtoWeb there is a demo:demo account (that could be the pre-set url of Zoneminder). Application names might be mixed up here (rtsp2web<>RTSPtoWeb).

[IgorA100]

I don't know what was meant in ZM as RTSP2Web, but I was able to run in test mode "RTSPtoWeb".
In "HLS" mode it works not so bad, more stable than Janus.
Probably it is necessary to use RTSPtoWeb and not RTSP2Web!

[IgorA100]

Description of the complete installation process on Ubuntu:

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cd /usr/share
git clone https://github.com/deepch/RTSPtoWeb

On the page https://go.dev/dl/ we find the required option, for example https://go.dev/dl/go1.24.1.linux-amd64.tar.gz
and download:

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wget https://go.dev/dl/go1.24.1.linux-amd64.tar.gz
sudo tar -xvf go1.24.1.linux-amd64.tar.gz
rm go1.24.1.linux-amd64.tar.gz
export GOROOT=/usr/share/go
export GOPATH=$HOME/go
export PATH=$GOPATH/bin:$GOROOT/bin:$PATH
source ~/.profile

Check with the command:

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go version

Checking the work RTSPtoWeb

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cd RTSPtoWeb/
GO111MODULE=on go run *.go

After first executing this command, the necessary dependencies will be downloaded and RTSPtoWeb will be launched.
If everything went well, then create a daemon for automatic loading.

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cat > /etc/systemd/system/rtsptoweb.service

Insert code (You must specify your own paths!):

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[Unit]
Description=Service for RTSPtoWeb

[Service]
User=root
WorkingDirectory=/usr/share/RTSPtoWeb
ExecStart=/bin/bash -c 'cd /usr/share/RTSPtoWeb && GO111MODULE=on /usr/share/go/bin/go run *.go'
Restart=on-failure
RestartSec=10
TimeoutStopSec=30
Type=simple
SyslogIdentifier=RTSPtoWeb_service

[Install]
WantedBy=multi-user.target

Press Ctrl+C and the data will be saved in the file. Then execute the commands

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systemctl enable rtsptoweb.service
systemctl start rtsptoweb.service

Check:

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netstat -lnp | grep 8083

[IgorA100]

For type=WebRTC use audio codec "G.711A"
For type=MSE use audio codec "AAC"

[IgorA100]

It is recommended to make changes according to:
https://github.com/deepch/RTSPtoWeb/pull/496
https://github.com/deepch/RTSPtoWeb/pull/485

[IgorA100]

Rules for Iptables:

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-A PREROUTING -p tcp --dport 8083 -j DNAT --to-destination LOCAL_IP_ZM:8083  --dst WAN_IP_GW
-A POSTROUTING -p tcp --dport 8083 -j SNAT --to-source LOCAL_IP_GW  --dst LOCAL_IP_ZM
-A OUTPUT -p tcp --dport 8083 -j DNAT --to-destination LOCAL_IP_ZM:8083  --dst WAN_IP_GW
-A INPUT -p tcp -m tcp --dport 8083 -j ACCEPT
-A INPUT -p tcp -m tcp --sport 8083 -j ACCEPT

WAN_IP_GW - External IP of the gateway
LOCAL_IP_GW - Local IP of the gateway
LOCAL_IP_ZM - Local IP where ZM is installed

[baddog]

Now that the latest version of firefox (version 137) supports h.265 natively (!), I'd like to get RTSP streaming working for my monitor viewing.

Can someone detail a bit more how to configure rtsptoweb to make this work with zoneminder?

First, I started up the rtsptoweb on my fedora server running zoneminder, and opened up port 8083 in the firewall. I'm able to connect to rtsptoweb at port 8083.

In zoneminder, under monitor->viewing I turned on "RTSP2Web Live Stream".
This change is apparently insufficient, as with this, live viewing still streams the monitor using built-in decoding.

Next, under options->system->RTSP2WEB_PATH, the documentation claims "This value points to the location of the RTSP2Web install, including username and password. If left blank, this will default to demo:demo@127.0.0.1:8083 port 8083."
But I found that in Monitor.php, the check for whether or not to attempt rtsp is based upon whether or not this value is set to something. So I set this to demo:demo@127.0.0.1:8083. At this point, I'm apparently closer to success as live streaming is no longer decoding this monitor, instead I see a blank window with playback controls but no video appearing.

What else do I need to do get this to work?

I can see from netstat (and tcpdump) that zoneminder is making a bunch of connections to port 8083. Yet rtsptoweb's trace level debugging is not showing me anything.

[IgorA100]

What else do I need to do get this to work?

Perhaps you need to write rules on the firewall. I wrote these rules above.
Are you on the same network as the ZM server?
Are you accessing the ZM server by IP address (white or gray) or by host name?

[baddog]

What else do I need to do get this to work?

Perhaps you need to write rules on the firewall. I wrote these rules above.
Are you on the same network as the ZM server?
Are you accessing the ZM server by IP address (white or gray) or by host name?

My zoneminder machine is a fedora server, so it's using firewalld. As I wrote, I did open up my firewall and test access to port 8083. Locally and over the LAN. I can document how one does this with firewalld if there is interest.
Yes, I'm on the same network as the zoneminder server, which I access via https by IP address.

[IgorA100]

Yes, I'm on the same network as the zoneminder server, which I access via https by IP address.

Then everything is very strange...
Oh yeah... What type of RTSP2Web are you using? Type MSE definitely does not support h.265.
First try changing the stream on the camera to H264 to make sure that RTSP2Web works as part of ZM.

[baddog]

Then everything is very strange...
Oh yeah... What type of RTSP2Web are you using? Type MSE definitely does not support h.265.
First try changing the stream on the camera to H264 to make sure that RTSP2Web works as part of ZM.

I was using the default, so webrtc. I tried all rtsp format choices with my h.265 hikvision camera, and only MSE produces some video, but even with that setting, only the left edge of the frame appears and the stream playback quickly stops. When I switch the camera to h.264, and use MSE, then rtsptoweb is able to stream the camera's video. However I don't want to capture video at that high data rate.

I see that homekit deprecated rtsptoweb and switched to go2rtc instead. I tried that and it's able to correctly stream my hikvision h.265 rtsp stream into firefox, with audio even. Horray. Maybe zoneminder can be changed to offer go2rtc as a viewing option.

[baddog]

Er, I meant homeassistant not homekit. Specifically:
https://community.home-assistant.io/t/a ... rtc/387846

[IgorA100]

Maybe zoneminder can be changed to offer go2rtc as a viewing option.

Thanks for the interesting information.
I will definitely watch go2rtc