BBB Chat Via API?

[S]

Is there a way for me to send a chat message to the Meeting via API? I don't see an API but just wondering if there is a workaround to this? 

Use Case: I am trying to allow a Live Streaming watching users to Ask Questions to the Teacher. 

[manis...@gmail.com]

if you start the meetings with record=true, in /var/bigbluebutton/recordings/raw/<internal meeting id> there should be a file events.xml. this will contain all the activity which happened in the meeting including chat.

 You will need to write your own api to process this xml data, extract chat from it and send it back as required by you.

-manish

[Victor Manuel Agudelo]

Hey my friend check my function to upload the file events.xml when this is generated.

https://github.com/vicman/bbb-extract 

Best Regards

 

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[S]

I think both of you are mistaken. I am looking at sending a message to the Meeting room via Chat when it is on going LIVE  ..not trying to extract the chat post the meeting. 

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[Jibon Costa]

There is no API available for this. You'll require to modify BBB to add this functionality. 

On Wednesday, July 15, 2020 at 9:47:26 AM UTC+6, S wrote:

I think both of you are mistaken. I am looking at sending a message to the Meeting room via Chat when it is on going LIVE  ..not trying to extract the chat post the meeting. 

On Tue, 14 Jul 2020 at 8:50 PM, Victor Manuel Agudelo <vicm...@gmail.com> wrote:

Hey my friend check my function to upload the file events.xml when this is generated.

https://github.com/vicman/bbb-extract 

Best Regards

 

El mar., 14 de jul. de 2020 a la(s) 09:29, manis...@gmail.com (manis...@gmail.com) escribió:

if you start the meetings with record=true, in /var/bigbluebutton/recordings/raw/<internal meeting id> there should be a file events.xml. this will contain all the activity which happened in the meeting including chat.

 You will need to write your own api to process this xml data, extract chat from it and send it back as required by you.

-manish

On Tuesday, 14 July 2020 at 19:18:04 UTC+5:30 sraj...@gmail.com wrote:

Is there a way for me to send a chat message to the Meeting via API? I don't see an API but just wondering if there is a workaround to this? 

Use Case: I am trying to allow a Live Streaming watching users to Ask Questions to the Teacher. 

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[Martin Thomas Schrott]

On Tuesday, 14 July 2020 at 19:18:04 UTC+5:30 sraj...@gmail.com wrote:

Is there a way for me to send a chat message to the Meeting via API? I don't see an API but just wondering if there is a workaround to this? 

you can use our bigbluebutton-livestreaming tool to inject chat messages.

see

https://github.com/aau-zid

in the livestreaming examples you will find the chat stuff to use.

there might be a solution without joining and using selenium by writing directly into the db, but we did not find the time to develop this...

cheers

Martin

Use Case: I am trying to allow a Live Streaming watching users to Ask Questions to the Teacher. 

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[Ragesh Antony]

How this live streaming works?

Does it live stream a whole BBB meeting UI with all webcams,chats, whiteboard and screen sharing?

Please provide a screenshot of RTMP streaming?

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[Martin Thomas Schrott]

please read the README on the page - this will answer the question.

you can just try it out to see how it works.

if you do not understand how to set it up - read the issues, there are some cases that may help setting up.

cheers

Martin

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[Sam Raj]

can I live stream to multiple RTMP URLS?

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[Martin Thomas Schrott]

Am 15.07.2020 um 10:42 schrieb Sam Raj:

can I live stream to multiple RTMP URLS?

technically yes, we did not try it and have not implimented that, as we stream to a media server which then could multiply to other endpoints.

you just would have to start the ffmpeg process for each rtmp stream you need. - but it will need lot's of resources.

why would you need multiple streams? you could have a look at restream.io or other platforms, that do exactly this.

hth

Martin

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[Antonio Guirado]

Hi,

you can edit code and use ffmpeg commands to do a "tee" to encode only one time and have 2 or more outputs (you don't need more resources).

For example, I use the following command (see mainly bold parameters):

$FFMPEG -thread_queue_size 1024 -f x11grab -draw_mouse 0 -s 1920x1080 -i :1000 -f alsa -i pulse -ac 2 -c:a aac -b:a 64k -threads 0 -flags +global_header -c:v libx264 -pix_fmt yuv420p -s 1920x1080 -preset ultrafast  -threads 0
-f tee -map 0:0 -map 1:0 "[f=flv]$BBB_STREAM_URL1|[f=flv]$BBB_STREAM_URL2"

Regards

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[Sam Raj]

Is there a way to Hide/Show presentation when Live Streaming? When someone is talking but not showing a presentation, I would like the Presentation to be hidden and when I want...show presentation.

The presentation occupies 80% of the screen and people talking shows just as small videos in Live Stream.

If I hide the presentation by default to give more screen to Video of Presenters, the presentation just doesn't show up at all in Live Stream.

[Martin Thomas Schrott]

Am 15.07.2020 um 12:26 schrieb Sam Raj:
> Is there a way to Hide/Show presentation when Live Streaming? When
> someone is talking but not showing a presentation, I would like the
> Presentation to be hidden and when I want...show presentation.

I don't think this is possible currently.

there are wishes of users for bbb to let the speaker hide and show the
presentation, this would also solve the problem for liveStreaming. So
let's hope someone does impliment this in bbb.

cheers

[S]

How will I pass the chat message via the Live Steam as and when users send that message? Any guidance will be great help.

Thanks for your help. Appreciate it.

Sent from my iPhone

> On 15-Jul-2020, at 4:00 PM, Martin Thomas Schrott <li...@mtsonline.at> wrote:
>
> 

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[Antonio Guirado]

Hello,

you can delete all presentations (included default) from BBB page where
moderatos upload pdf/ppts. In that moment, the presentation area
dissapear and video are shown bigger. This must be maden by a moderator
and all users seen the change. When you want to see the presentation
area, you must upload a pdf or ppt and select it. I don't know if it is
a right solution for you but we use it after explain the presentation
and to do questions.

Regards

[Martin Thomas Schrott]

Am 15.07.2020 um 12:35 schrieb S:
> How will I pass the chat message via the Live Steam as and when users send that message? Any guidance will be great help.
>
> Thanks for your help. Appreciate it.

have a look at the examples with chat. it are just two files and a few
lines of code.

the messages are send via a web / html form to redis

and from there pushed into the chat.

hth

Martin

[Sam Raj]

@Antonio Guirado

there is no option to delete the default presentation. How did you accomplish this? Thanks

[Jibon Costa]

Why you want to delete presentation? Instated of you can hide/unhide by passing params in Join API call. Have a look here: https://docs.bigbluebutton.org/2.2/customize.html#passing-custom-parameters-to-the-client-on-join

On Wednesday, July 15, 2020 at 5:39:33 PM UTC+6, Sam Raj wrote:

...@Antonio Guirado

there is no option to delete the default presentation. How did you accomplish this? Thanks

On Wed, Jul 15, 2020 at 4:39 PM Martin Thomas Schrott <li...@mtsonline.at> wrote:

Am 15.07.2020 um 12:35 schrieb S:
> How will I pass the chat message via the Live Steam as and when users send that message? Any guidance will be great help.
>
> Thanks for your help. Appreciate it.


have a look at the examples with chat. it are just two files and a few
lines of code.

the messages are send via a web / html form to redis

and from there pushed into the chat.

hth

Martin


> Sent from my iPhone
>
>> On 15-Jul-2020, at 4:00 PM, Martin Thomas Schrott <li...@mtsonline.at> wrote:
>>
>> 
>>> Am 15.07.2020 um 12:26 schrieb Sam Raj:
>>> Is there a way to Hide/Show presentation when Live Streaming? When someone is talking but not showing a presentation, I would like the Presentation to be hidden and when I want...show presentation.
>>
>> I don't think this is possible currently.
>>
>> there are wishes of users for bbb to let the speaker hide and show the presentation, this would also solve the problem for liveStreaming. So let's hope someone does impliment this in bbb.
>>
>> cheers
>>
>>
>> --
>> You received this message because you are subscribed to the Google Groups "BigBlueButton-dev" group.

>> To unsubscribe from this group and stop receiving emails from it, send an email to bigblueb...@googlegroups.com.

[Jibon Costa]

Martin, Where this PHP Redis script need to host? in BBB server? Because I have another script written in nodejs & want to try there.

On Wednesday, July 15, 2020 at 5:09:07 PM UTC+6, Martin Thomas Schrott wrote:

Am 15.07.2020 um 12:35 schrieb S:
> How will I pass the chat message via the Live Steam as and when users send that message? Any guidance will be great help.
>
> Thanks for your help. Appreciate it.


have a look at the examples with chat. it are just two files and a few
lines of code.

the messages are send via a web / html form to redis

and from there pushed into the chat.

hth

Martin


> Sent from my iPhone
>
>> On 15-Jul-2020, at 4:00 PM, Martin Thomas Schrott <li...@mtsonline.at> wrote:
>>
>> 
>>> Am 15.07.2020 um 12:26 schrieb Sam Raj:
>>> Is there a way to Hide/Show presentation when Live Streaming? When someone is talking but not showing a presentation, I would like the Presentation to be hidden and when I want...show presentation.
>>
>> I don't think this is possible currently.
>>
>> there are wishes of users for bbb to let the speaker hide and show the presentation, this would also solve the problem for liveStreaming. So let's hope someone does impliment this in bbb.
>>
>> cheers
>>
>>
>> --
>> You received this message because you are subscribed to the Google Groups "BigBlueButton-dev" group.

>> To unsubscribe from this group and stop receiving emails from it, send an email to bigblueb...@googlegroups.com.

[Martin Thomas Schrott]

Am 15.07.2020 um 13:46 schrieb Jibon Costa:

Martin, Where this PHP Redis script need to host? in BBB server? Because I have another script written in nodejs & want to try there.

Hi Jibon,

no, you can host it where ever you want to, it just needs access to the redis server of the liveStreaming script, so this can fetch the messages from there.

hth

Martin

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[Antonio Guirado]

Hello,

our default presentation has a name different from "default". You can delete any presentation if its name is differente a "default". We want to hide the presentation area at the end of the meeting when the questions of the users begin so that cameras are seen better.

We do not know the userdata-bbb_force_restore_presentation_on_new_events=true paremeter. We will check it.

Thank you very much.

Regards

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[Jibon Costa]

Thanks, that's interesting. I did this from html5 client directly.

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[Antonio Guirado]

Hi,

I have interested in this feature but I can understand you code. If you see the code sendChatMessage.php there no reference to meetingID, username, etc..
Could you help me how this paremeters are send?.

Thank in advance.
Regards

<?php

if(!empty($_POST)) {
    $message = $_POST['message'];
    $redis = new Redis();
    $redis->pconnect('REDIS_HOST'); // REDIS_HOST hast to be the same as in BBB_REDIS_HOST
    $redis->publish('REDIS_CHANNEL', $message); // REDIS_CHANNEL hast to be the same as in BBB_REDIS_CHANNEL
    echo "Message published\n";

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[Martin Thomas Schrott]

Am 15.07.2020 um 13:54 schrieb Jibon Costa:

Thanks, that's interesting. I did this from html5 client directly.

if you have a little time available you could try to bypass the selenium part by injecting the messages from the redis db directly into the meeting.

here is what I collected as starting point - ideally it should be an api call that does allow to send messages I guess. But it also would be okay to do it via an python script for now:

* an example how this works for presentations:

https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!msg/bigbluebutton-dev/thG_j8UUeoQ/fP3sT-gEAgAJ

* and here the explanations of Pedro how it would work:

https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!msg/bigbluebutton-dev/61Em4ZfaQ7A/EKBantdGBwAJ

would be great if you could get us all a step further jibon :-)

cheers

Martin

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[Martin Thomas Schrott]

Antonio,

the php script just sends the massage to the redis db.

have a look at the python script that injects the chat messages into bbb. it is in the parent folder of the examples.

hth

Martin

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[Sam Raj]

@antonio I renamed my default.pdf to xyz.pdf and changed the

# Default Uploaded presentation file
beans.presentationService.defaultUploadedPresentation=${bigbluebutton.web.serverURL}/xyz.pdf

Still I am not able to delete the file.

userdata-bbb_force_restore_presentation_on_new_events=true

will only restore presentation but not minimize it. Hence your solution will help a lot to force removal.

Thanks

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[Antonio Guirado]

Hello,

We use BBB 2.2.14. I send you a screenshot where you can see that we have the delete button enabled and we can delete de "default" presentation.

Regards.

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[S]

@antonio

It will be great if you can share the code for python just like your PHP code also in case you were able to do it. Unfortunately I am not familiar with Python. 

It will be greatly appreciated 

Thanks. 

Sent from my iPhone

On 15-Jul-2020, at 7:25 PM, Antonio Guirado <amgui...@gmail.com> wrote:



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<IMG_20200715_155134.jpg>

[Antonio Guirado]

Hello,

It isn't my code. Please visit: https://github.com/aau-zid/BigBlueButton-liveStreaming

Regards.

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[S]

I have answered multiple questions which were asked in that repository based on our conversation here in this thread. 

Opened new ones too. Thanks Antonio. 

Sent from my iPhone