Need help with MMM-MQTTbridge not "communicating" with MMM-RTSPStream

[rkorell]

@sdetweil cool.
had played around with this and it was frickling to position - but worth a try … :-)

[rkorell]

@rkorell said in Need help with MMM-MQTTbridge not "communicating" with MMM-RTSPStream:

@rkorell @Cr4z33 with writing the above I’ve just noticed:
Your RTSP module is NOT “RTSP-play” but "MMM-RTSPStream" !
This should be your first trial then in your mqttDisctionary.js …

@Cr4z33 just found “source” : you have copied this configuration .
But I bet you have to place the module name as “notiID” …
this is not “RTSP-play” but “MMM-RTSPStream” …
Regards,
Ralf

(Pay attention : it is highly probably case-sensitive …)

[rkorell]

@Cr4z33
MMM-RTSPStream is quite old and the author himself doesn’t use it anymore and recommend indeed other modules.
So it a a wise advice from Sam (@sdetweil ) to use MMM-Mplayer …
This one still have an active discussion here .

Ralf

[rkorell]

@rkorell said

use MMM-Mplayer …

Just checked: You CAN use MMM-Pages notification to start and stop your stream …
(e.g. “NEW_PAGE=0” will start the stream.

Unfortunately you will have to care about switching OFF the stream by yourself - I guess the doorbell will not be sufficient to send a “STOP” signal - You likely would to see the stream longer that the visitor is pressing the doorbellbutton …

Ralf

[Cr4z33]

Thank you again @rkorell and @sdetweil for your precious help, but I am at a point where I don’t have enough skill to generate the needed code lines.

What comes afterwards (ie. stop the stream, etc.) is not what worries me hehe, but all I am able to do at today is how to install a module and give it a basic config.

Having two modules to “talk” to each other is another matter and that’s where I start asking for help to people who know what they are doing (I am more a copy&paste or a tutorial follower guy). 😁

Once again this is the RTSP URL:

rtsp://username:password@ipaddress/cam/realmonitor?channel=1&subtype=1#backchannel=0

and this is the MQTT button press line:

2025-04-16 11:40:58,897 INFO __main__ Publishing MQTT message DahuaVTO/Invite/Event: {'Action': 'Pulse', 'Code': 'Invite', 'Data': {'CallID': '3', 'IsEncryptedStream': False, 'LocaleTime': '2025-04-16 11:40:58', 'LockNum': 2, 'RealUTC': 1744796458, 'SupportPaas': False, 'TCPPort': 37777, 'UTC': 1744800058.0, 'UserID': '101'}, 'Index': 0, 'deviceType': 'DHI-VTO3311Q-WP', 'serialNumber': '*******'}

I tried creating a Home Assistant automation, but it’s probably wrong.

[sdetweil]

@Cr4z33 you are composing a service that does not yet exist
button on doorbell causes window w video stream to
open

appears no one has done that w this video doorbell, welcome to the bleeding edge. u get to MAKE the sausage no one else wants to see!!

a MagicMirror module runs inside a web browser, all in javascript. it can consume info from the outside using url based apis http get or put/post

Now, sometimes, you want module A to work with data from module B. for example calendar. it reads the raw data file (ical/ics), parses all the events, gets the list of pertinent events ( dont care about 2 years ago, only next week…)

and displays them. hm id like a different display, but dont want to learn about all the file reading and parsing and selecting)

MagicMirror provides a way for one module to share its data with others, called Notifications. some identifying string, with some attached data. the mechanism is a broadcast. one send, every other module gets the same message.

if a modules doesn’t understand the identifying string, it ignores the message
if it DOES understand the identifying string, then it MUST understand the format of the attached data.

so, modules that DO participate in this data sharing must document ( in their readme.md file)

what notification strings they send (and its associated data format, if any)
AND
what notifications strings they accept (and its required data format)

nothing going outside the browser is known inside the browser,
to get that kind of info requires some module to be able to bridge the two environments

i have a simple one
id like some way for a script running outside MagicMirror to trigger a module to do something (receive a notification it knows about)
so i wrote MMM-CurlToNotification
from the command line outside MagicMirror you can issue the curl command to send a packet of data that turns into a notification sent to all modules
there are other modules that provide similar support (as well as others), mmm-remotecontrol for example

anyhow MMM-MqttBridge does that bridging for MQTT messages. in both directions

mqtt -> notifi(cation) and notification) -> mqtt

but you need to know a bunch of stuff, and figure out how to code the file that does the actual work

i work backwards
i need a video played from a url on demand
what modules can do that
and how do i setup for the on demand part

pick a module RTSPStream or Minfo, read its doc to understand what notifications it understands, and what data it needs

install and configure the selected module

now you ‘could’ use my curltonotification module to verify that the video player module works

then you back up to the MQTT bridge module config to send the same message you just tested with, and what mqtt message will trigger it

then back up, and find/setup what will send that mqtt message
and how it is triggered to to that

you can draw this all out on a piece of paper

coding is just making the computer fo the exact same thing over and over, just faster. if you dont know what, then it cant either

someone presses the doorbell button
how does something outside the doorbell know?
can that something send a msg via mqtt that the bridge is listening for? if not, can i find something that that can take the first things out and get it into our expected mqtt message

repeat along the way,
test each step

[rkorell]

@sdetweil said in Need help with MMM-MQTTbridge not "communicating" with MMM-RTSPStream:

so i wrote MMM-CurlToNotification

Dear Sam,
trying to help I’m struggled with your module CurlToNotification :-(

{ 
  module:"MMM-CurlToNotification",
  config:{
    url_name:"doorbell", // the path of the url for curl post
  }
},		

And consecutively running

curl --header "Content-Type: application/json"   --request POST   --data '{"notification":"SHOW_ALERT","payload":{"message":"fribble"}}' http://localhost:8080/doorbell

Shows an error message:

pi@MagicMirrorPi5:~/MagicMirror/modules $ curl --header "Content-Type: application/json"   --request POST   --data '{"notification":"SHOW_ALERT","payload":{"message":"fribble"}}' http://localhost:8080/doorbell
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Error</title>
</head>
<body>
<pre>InternalServerError: stream is not readable<br> &nbsp; &nbsp;at readStream (/home/pi/MagicMirror/node_modules/raw-body/index.js:185:17)<br> &nbsp; &nbsp;at getRawBody (/home/pi/MagicMirror/node_modules/raw-body/index.js:116:12)<br> &nbsp; &nbsp;at read (/home/pi/MagicMirror/node_modules/body-parser/lib/read.js:79:3)<br> &nbsp; &nbsp;at jsonParser (/home/pi/MagicMirror/node_modules/body-parser/lib/types/json.js:138:5)<br> &nbsp; &nbsp;at Layer.handle [as handle_request] (/home/pi/MagicMirror/node_modules/express/lib/router/layer.js:95:5)<br> &nbsp; &nbsp;at trim_prefix (/home/pi/MagicMirror/node_modules/express/lib/router/index.js:328:13)<br> &nbsp; &nbsp;at /home/pi/MagicMirror/node_modules/express/lib/router/index.js:286:9<br> &nbsp; &nbsp;at Function.process_params (/home/pi/MagicMirror/node_modules/express/lib/router/index.js:346:12)<br> &nbsp; &nbsp;at next (/home/pi/MagicMirror/node_modules/express/lib/router/index.js:280:10)<br> &nbsp; &nbsp;at Layer.handle [as handle_request] (/home/pi/MagicMirror/node_modules/express/lib/router/layer.js:91:12)<br> &nbsp; &nbsp;at trim_prefix (/home/pi/MagicMirror/node_modules/express/lib/router/index.js:328:13)<br> &nbsp; &nbsp;at /home/pi/MagicMirror/node_modules/express/lib/router/index.js:286:9<br> &nbsp; &nbsp;at Function.process_params (/home/pi/MagicMirror/node_modules/express/lib/router/index.js:346:12)<br> &nbsp; &nbsp;at next (/home/pi/MagicMirror/node_modules/express/lib/router/index.js:280:10)<br> &nbsp; &nbsp;at /home/pi/MagicMirror/modules/MMM-Remote-Control/node_modules/body-parser/lib/read.js:132:5<br> &nbsp; &nbsp;at AsyncResource.runInAsyncScope (node:async_hooks:206:9)<br> &nbsp; &nbsp;at invokeCallback (/home/pi/MagicMirror/modules/MMM-Remote-Control/node_modules/raw-body/index.js:238:16)<br> &nbsp; &nbsp;at done (/home/pi/MagicMirror/modules/MMM-Remote-Control/node_modules/raw-body/index.js:227:7)<br> &nbsp; &nbsp;at IncomingMessage.onEnd (/home/pi/MagicMirror/modules/MMM-Remote-Control/node_modules/raw-body/index.js:287:7)<br> &nbsp; &nbsp;at IncomingMessage.emit (node:events:518:28)<br> &nbsp; &nbsp;at endReadableNT (node:internal/streams/readable:1698:12)<br> &nbsp; &nbsp;at process.processTicksAndRejections (node:internal/process/task_queues:82:21)</pre>
</body>
</html>

From Windows Client (changing localhost to MagicMirrors IP address a different error message:

PS C:\Users\Familienbenutzer> curl --header "Content-Type: application/json"   --request POST   --data "{\"notification\":\"SHOW_ALERT\",\"payload\":{\"message\":\"fribble\"}}" http://1xx.yy.zz.157:8080/doorbell

Invoke-WebRequest : Es wurde kein Positionsparameter gefunden, der das Argument "Content-Type: application/json"
akzeptiert.
In Zeile:1 Zeichen:1
+ curl --header "Content-Type: application/json"   --request POST   --d ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidArgument: (:) [Invoke-WebRequest], ParameterBindingException
    + FullyQualifiedErrorId : PositionalParameterNotFound,Microsoft.PowerShell.Commands.InvokeWebRequestCommand

Any hint for me?

Thanks and regards,
Ralf

[sdetweil]

@rkorell and you did restart MagicMirror after installing the module, right?

you can also add config parm (make sure there is a trailing comma after doorbell

   debug:true,

[rkorell]

@sdetweil said in Need help with MMM-MQTTbridge not "communicating" with MMM-RTSPStream:

and you did restart MagicMirror after installing the module, right?

yes, indeed :-)

And a trailing comma is there…
In the meantime I had even a PI-reboot (for other reasons) - error persists.
Even with debug-option enabled no debug message from your module.
Neither in pm2 logs nor in developer’s console…

Ralf

[sdetweil]

@rkorell weird

i am away from my computer for most of the day helping family
i will review asap