Multiple pro node licensing

cameron · June 3, 2020, 8:52pm

We are potentially going to deploy multiple pro nodes to accommodate more composed recordings. My question is do we need to have a separate license key for each machine or will the same license just report the extra cores?

micael.gallego · June 4, 2020, 7:48am

Hello Cameron,

With the current implementation, OpenVidu PRO doesn’t distribute COMPOSED recordings among media nodes.

So COMPOSED recording is not scalable at this moment. We are working on it right now. It will be available in a few weeks.

pabloFuente · June 4, 2020, 8:52am

And a single license key is the way to go. Each OpenVIdu Pro cluster will be identified by its own cluster ID.

cameron · June 4, 2020, 2:23pm

Thanks. This was going to be another question but I was still looking for an answer elsewhere before posting.

DiStefano8472 · July 15, 2020, 9:45am

Hi Micael,

you said, COMPOSED recordings are not scalable at this moment - because COMPOSED recordings run on the master node, in contrast to INDIVIDUAL recordings, running on media nodes?

I have several questions to this topic:

Is “it will be available in a few weeks” realistic for scaleable COMPOSED recordings?
What about the performance hunger of the COMPOSED recording - it depends on the number of shown streams in a custom layout - or it depends on the ffmpeg-capturing in a chrome instance itself?
e.g.: 1 video stream, 2 audio streams < ressources < 3 video streams, 3 audio streams?
What way is recommended for simultanous playback of INDIVIDUAL recordings? Is there a nativ solution vom OpenVidu?

Thanks for your answers!
(I have to figure out if OpenVidu fits our requirements for production)

micael.gallego · July 15, 2020, 11:28am

We are improving recording stuff right now. Fixing bugs and implementing new features. This feature is on our short time roadmap.

Chrome and ffmpeg consumes a lot of resources. Then, if you have too much videos, more resources are consumed.

INDIVIDUAL recording is designed for later composition using ffmpeg or other tool. There are some messages in the forum with some code to do it. For example:

gist.github.com

https://gist.github.com/ameotoko/69ba54a78ceba1c728ac3e58a1234138

README.md

This covers the usecase when 1:1 OpenVidu session recorded in INDIVIDUAL mode, participants may join and leave at different moments, but you only want to keep the portion where both are present. This command produces video file with two recorded streams side-by-side, and both audio tracks merged (broken down for readability):

```bash
 ffmpeg \
  -ss 1054403ms -c:a libopus -i .\str_CAM_Fs1t_con_CjOpssSpAe.webm \
  -i -c:a libopus .\str_CAM_GQcn_con_RzVjNmZY6i.webm \
  -filter_complex "[0][1]scale2ref='oh*mdar':'if(lt(main_h,ih),ih,main_h)'[0s][1s];
                   [0s][1s]scale2ref='oh*mdar':'if(lt(main_h,ih),ih,main_h)'[1s][0s];
                   [0s][1s]hstack=inputs=2:shortest=1,setsar=1[v];
                   [0:a][1:a]amerge,aresample=async=1000[a]" \

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convert.sh

#!/bin/bash

# This is a very simple example script, that downloads a recording from AWS instance,
# unzips it, and combines two .webm recorded streams into one .mp4 file,
# composed in "side-by-side" layout.
#
# It uses jq JSON-parser (https://stedolan.github.io/jq/)
# 
# It only deals with two streams for a specific use case, please check the README.md in this gist.
#

This file has been truncated. show original

But you implement a web player if you want. There is no “official” player for INDIVIDUAL recordings.

DiStefano8472 · July 23, 2020, 9:21am

May I ask another question?

We want to use OpenVidu for mobile video inspections - a recording from the inspection is needed for legal documentation. We want to use COMPOSED recording - because the video should be available immediately at the end of the inspection.

During the inspection it could be necessary to pause the recording and continue it a few minutes later with the same recording video. I tested the QUICK_START_RECORDING feature - hoping there is a way just to pause a recording and continue it later.

But even on QUICK_START_RECORDING the recordings/start method always creates a new folder and a new file. Are there some future plans or a workaround for making our scenario possible?

micael.gallego · July 23, 2020, 9:56am

Recording pause is not in our roadmap, but we will evaluate it for the future. Thank you for suggestion.

DiStefano8472 · June 17, 2021, 8:12am

Hi Micael,

at the moment I am implementing recording features to our intranet app. The recording will be stopped and restarted several times. Is a recording pause function meanwhile on your roadmap? If not I have to start a lot of work to bring the videos together after the session has end. So I want to be sure, a pause feature will not be released after I finished my work

Best regards

Stefan

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Multiple pro node licensing

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