# mediasoup-demo **URL:** https://mediasoup.discourse.group/c/mediasoup-demo/8.md [Latest](https://mediasoup.discourse.group/latest.md) · [Categories](https://mediasoup.discourse.group/categories.md) --- ## [About the mediasoup-demo category](https://mediasoup.discourse.group/t/about-the-mediasoup-demo-category/15)
**Author:** [@ibc](https://mediasoup.discourse.group/u/ibc)\ **Replies:** 0
Questions about the mediasoup-demo project. Do not ask for new features, please, mediasoup-demo is just a reference application for demo purposes (and not a full application). --- ## [RoomClient enableWebcam() | failed:Error: a=ssrc line with msid information not found](https://mediasoup.discourse.group/t/roomclient-enablewebcam-failed-a-ssrc-line-with-msid-information-not-found/7006)
**Author:** [@miroslavpejic85](https://mediasoup.discourse.group/u/miroslavpejic85)\ **Replies:** 4\ **Last updated:** [October 1, 2026, 2:53pm UTC](https://mediasoup.discourse.group/t/roomclient-enablewebcam-failed-a-ssrc-line-with-msid-information-not-found/7006 "2026-10-01T14:53:35Z")
In Safari got: RoomClient enableWebcam() | failed:Error: a=ssrc line with msid information not found --- ## [4 packages had install scripts blocked because they are not covered by allowScripts](https://mediasoup.discourse.group/t/4-packages-had-install-scripts-blocked-because-they-are-not-covered-by-allowscripts/6989)
**Author:** [@AaronNGray](https://mediasoup.discourse.group/u/AaronNGray)\ **Replies:** 1\ **Last updated:** [July 17, 2026, 8:59am UTC](https://mediasoup.discourse.group/t/4-packages-had-install-scripts-blocked-because-they-are-not-covered-by-allowscripts/6989 "2026-07-17T08:59:19Z")
I am getting for following :- ~/github/mediasoup-demo/server$ rm -rf node\_modules ~/github/mediasoup-demo/server$ npm install npm warn deprecated yaeti@0.0.6: Package no longer supported. Contact Support at https://www.… --- ## [Failed to execute ‘setLocalDescription’ on ‘RTCPeerConnection](https://mediasoup.discourse.group/t/failed-to-execute-setlocaldescription-on-rtcpeerconnection/6975)
**Author:** [@miroslavpejic85](https://mediasoup.discourse.group/u/miroslavpejic85)\ **Replies:** 3\ **Last updated:** [May 28, 2026, 11:08am UTC](https://mediasoup.discourse.group/t/failed-to-execute-setlocaldescription-on-rtcpeerconnection/6975 "2026-05-28T11:08:51Z")
Chrome is up to date: Version 148.0.7778.216 (Official Build) (x86\_64) mediasoup-demo:ERROR:RoomClient enableWebcam() | failed:InvalidAccessError: Failed to execute 'setLocalDescription' on 'RTCPeerConnection': Failed t… --- ## [Can anyone provide sample env file and instructions for config settings?](https://mediasoup.discourse.group/t/can-anyone-provide-sample-env-file-and-instructions-for-config-settings/6878)
**Author:** [@nikhilgoswami](https://mediasoup.discourse.group/u/nikhilgoswami)\ **Replies:** 1\ **Last updated:** [October 4, 2025, 7:57am UTC](https://mediasoup.discourse.group/t/can-anyone-provide-sample-env-file-and-instructions-for-config-settings/6878 "2025-10-04T07:57:20Z")
I was trying to understand how the server but I noticed in repository there is no .env file --- ## [Issue with Firefox in MediaSoup Demo](https://mediasoup.discourse.group/t/issue-with-firefox-in-mediasoup-demo/6747)
**Author:** [@miroslavpejic85](https://mediasoup.discourse.group/u/miroslavpejic85)\ **Replies:** 13\ **Last updated:** [October 1, 2025, 2:45pm UTC](https://mediasoup.discourse.group/t/issue-with-firefox-in-mediasoup-demo/6747 "2025-10-01T14:45:10Z")
Hi team, I noticed an issue with Firefox in the MediaSoup demo: Steps to reproduce: Open the following room using Firefox: https://v3demo.mediasoup.org/?roomId=x3yli0fb Open the same room using Chrome: https://v3de… --- ## [ScreenSharing using VP9 with L3T3](https://mediasoup.discourse.group/t/screensharing-using-vp9-with-l3t3/6868)
**Author:** [@skp](https://mediasoup.discourse.group/u/skp)\ **Replies:** 2\ **Last updated:** [September 18, 2025, 9:50pm UTC](https://mediasoup.discourse.group/t/screensharing-using-vp9-with-l3t3/6868 "2025-09-18T21:50:31Z")
I was playing around with VP9 support for screen sharing. I was not able to successfully produce the captured screen share stream video using VP9 with L3T3 in my localhost. It works using VP9 with L1T3 for screen share. … --- ## [The Error Persists](https://mediasoup.discourse.group/t/the-error-persists/6833)
**Author:** [@Debzoti](https://mediasoup.discourse.group/u/Debzoti)\ **Replies:** 0\ **Last updated:** [August 26, 2025, 7:16pm UTC](https://mediasoup.discourse.group/t/the-error-persists/6833 "2025-08-26T19:16:41Z")
I’m trying to figure out how to set up the project, but somehow the binary file of the mediasoup worker does not build i debug use AI tools still Can anyone help me with this? and i followed the docs but theres no way … --- ## [screen sharing on mobile device](https://mediasoup.discourse.group/t/screen-sharing-on-mobile-device/6456)
**Author:** [@vinay](https://mediasoup.discourse.group/u/vinay)\ **Replies:** 4\ **Last updated:** [August 12, 2025, 12:53pm UTC](https://mediasoup.discourse.group/t/screen-sharing-on-mobile-device/6456 "2025-08-12T12:53:03Z")
i am unable to share screen on mobile device (android and ios) is anyone help me for the same ? --- ## [如何打包mediasoup-demo的server](https://mediasoup.discourse.group/t/mediasoup-demo-server/6796)
**Author:** [@aikxiya](https://mediasoup.discourse.group/u/aikxiya)\ **Replies:** 0\ **Last updated:** [July 25, 2025, 6:39am UTC](https://mediasoup.discourse.group/t/mediasoup-demo-server/6796 "2025-07-25T06:39:27Z")
如何打包mediasoup-demo的server --- ## [can someone please help](https://mediasoup.discourse.group/t/can-someone-please-help/6776)
**Author:** [@tech](https://mediasoup.discourse.group/u/tech)\ **Replies:** 1\ **Last updated:** [July 18, 2025, 2:05pm UTC](https://mediasoup.discourse.group/t/can-someone-please-help/6776 "2025-07-18T14:05:03Z")
I installed configured do almost everything a 1000 times but i cant get the Client//participants video to show and also that the chat is availible can anyone please assist me urgently it now been 7 days and i am not gett… --- ## [Does activeSpeakerObserver work as expected in current mediasoup?](https://mediasoup.discourse.group/t/does-activespeakerobserver-work-as-expected-in-current-mediasoup/6722)
**Author:** [@miroslavpejic85](https://mediasoup.discourse.group/u/miroslavpejic85)\ **Replies:** 4\ **Last updated:** [June 9, 2025, 11:27am UTC](https://mediasoup.discourse.group/t/does-activespeakerobserver-work-as-expected-in-current-mediasoup/6722 "2025-06-09T11:27:49Z")
Hi Team, Can you please confirm if the activeSpeakerObserver in the current mediasoup version (3.16.0) works as expected? Here’s how I’m initializing and using it on my side: this.activeSpeakerObserver = await this.ro… --- ## [PlainTransport Recovery from RTP interruption](https://mediasoup.discourse.group/t/plaintransport-recovery-from-rtp-interruption/2010)
**Author:** [@breakthrough](https://mediasoup.discourse.group/u/breakthrough)\ **Replies:** 13\ **Last updated:** [May 29, 2025, 3:44am UTC](https://mediasoup.discourse.group/t/plaintransport-recovery-from-rtp-interruption/2010 "2025-05-29T03:44:34Z")
We’re uncertain if this is a demo app issue or a mediasoup library characteristic…we suspect it’s in the C code. We’re broadcasting a PlainTransport simulcast stream over RTP/UDP + RTCP/UDP into a room. Everything work… --- ## [video stream not working properly](https://mediasoup.discourse.group/t/video-stream-not-working-properly/6685)
**Author:** [@vinay](https://mediasoup.discourse.group/u/vinay)\ **Replies:** 0\ **Last updated:** [May 16, 2025, 7:51am UTC](https://mediasoup.discourse.group/t/video-stream-not-working-properly/6685 "2025-05-16T07:51:58Z")
During a group call or one-to-one call using the MediaSoup demo, when a user turns on their camera, their video feed doesn’t appear for all participants. Sometimes it only shows up for one or two members, and the issue h… --- ## [can someone help me for setting up demo app in my local plz cause i have tried but i m having issue like 🟡 Transport Connection State: new its not moving from new is there anybody who can help me out with these....?](https://mediasoup.discourse.group/t/can-someone-help-me-for-setting-up-demo-app-in-my-local-plz-cause-i-have-tried-but-i-m-having-issue-like-transport-connection-state-new-its-not-moving-from-new-is-there-anybody-who-can-help-me-out-with-these/6616)
**Author:** [@lakshit130](https://mediasoup.discourse.group/u/lakshit130)\ **Replies:** 0\ **Last updated:** [April 8, 2025, 5:42am UTC](https://mediasoup.discourse.group/t/can-someone-help-me-for-setting-up-demo-app-in-my-local-plz-cause-i-have-tried-but-i-m-having-issue-like-transport-connection-state-new-its-not-moving-from-new-is-there-anybody-who-can-help-me-out-with-these/6616 "2025-04-08T05:42:42Z")
:white\_check\_mark: All ICE candidates sent RoomClient.js:2259 protoo-client:Peer request() \[method:produce, id:4528871\] +3s RoomClient.js:2200 :yellow\_circle: Transport Connection State: new RoomClient.js:2265 … --- ## [encryption not working with different browser](https://mediasoup.discourse.group/t/encryption-not-working-with-different-browser/6601)
**Author:** [@vinay](https://mediasoup.discourse.group/u/vinay)\ **Replies:** 2\ **Last updated:** [April 4, 2025, 4:36am UTC](https://mediasoup.discourse.group/t/encryption-not-working-with-different-browser/6601 "2025-04-04T04:36:47Z")
I am trying to make a call from a desktop chrome to desktop mozila firefox but I am seeing garbage values and a distorted screen when the camera is on. However, when making a call from desktop chrome to desktop chrome,… --- ## [Modern demo and additional features](https://mediasoup.discourse.group/t/modern-demo-and-additional-features/6395)
**Author:** [@namnm](https://mediasoup.discourse.group/u/namnm)\ **Replies:** 2\ **Last updated:** [March 10, 2025, 1:26am UTC](https://mediasoup.discourse.group/t/modern-demo-and-additional-features/6395 "2025-03-10T01:26:23Z")
Thanks to the authors, I have been using mediasoup in production for several products. I want to contribute back to the community in the demo, my first attempt here: Replace gulp with vite, fix the build errors Add p… --- ## [Best practice to Ensuring Connection Resilience During Network Interruptions in Mediasoup](https://mediasoup.discourse.group/t/best-practice-to-ensuring-connection-resilience-during-network-interruptions-in-mediasoup/6508)
**Author:** [@miroslavpejic85](https://mediasoup.discourse.group/u/miroslavpejic85)\ **Replies:** 14\ **Last updated:** [March 2, 2025, 10:41pm UTC](https://mediasoup.discourse.group/t/best-practice-to-ensuring-connection-resilience-during-network-interruptions-in-mediasoup/6508 "2025-03-02T22:41:36Z")
When a peer’s internet connection drops (for instance, when the Wi-Fi is turned off and back on), the peers in the room lose their connection entirely, even after the network is restored. Steps to Reproduce: Peer-1 j… --- ## [calling with multiple device with e2eKey](https://mediasoup.discourse.group/t/calling-with-multiple-device-with-e2ekey/6476)
**Author:** [@vinay](https://mediasoup.discourse.group/u/vinay)\ **Replies:** 1\ **Last updated:** [February 26, 2025, 9:53am UTC](https://mediasoup.discourse.group/t/calling-with-multiple-device-with-e2ekey/6476 "2025-02-26T09:53:58Z")
I am trying to make a call from a desktop to a mobile(android) or desktop to IOS device using an e2eKey, but I am seeing garbage values and a distorted screen when the camera is on. However, when making a call from mobil… --- ## [mediasoup is not reachable](https://mediasoup.discourse.group/t/mediasoup-is-not-reachable/6470)
**Author:** [@MoatazNoaman2001](https://mediasoup.discourse.group/u/MoatazNoaman2001)\ **Replies:** 1\ **Last updated:** [February 14, 2025, 8:40am UTC](https://mediasoup.discourse.group/t/mediasoup-is-not-reachable/6470 "2025-02-14T08:40:43Z")
hello every one, some thing strange happen mediasoup is not reachable on this link mediasoup demo this mean websocket can not connected from today what is happening ? --- ## [\_mediasoupDevice close()](https://mediasoup.discourse.group/t/mediasoupdevice-close/6463)
**Author:** [@MoatazNoaman2001](https://mediasoup.discourse.group/u/MoatazNoaman2001)\ **Replies:** 0\ **Last updated:** [February 2, 2025, 11:34am UTC](https://mediasoup.discourse.group/t/mediasoupdevice-close/6463 "2025-02-02T11:34:28Z")
hello my name is a moataz new one in medisoup and have some difficulty about flutter mediasoup client i am using mediasoup demo on github but have some problem when client mobile disconnect a mediasoup device call close… --- ## [Need help to modernize mediasou-demo build system](https://mediasoup.discourse.group/t/need-help-to-modernize-mediasou-demo-build-system/5233)
**Author:** [@ibc](https://mediasoup.discourse.group/u/ibc)\ **Replies:** 4\ **Last updated:** [December 18, 2024, 9:07pm UTC](https://mediasoup.discourse.group/t/need-help-to-modernize-mediasou-demo-build-system/5233 "2024-12-18T21:07:11Z")
Hi, I’m trying to modernize mediasoup-demo/app (the browser side app). However too many problems show up and this is not my area of expertise at all. This is the draft PR I’m working on (now completely stuck due to an … --- ## [screen sharing](https://mediasoup.discourse.group/t/screen-sharing/6377)
**Author:** [@vinay](https://mediasoup.discourse.group/u/vinay)\ **Replies:** 3\ **Last updated:** [December 12, 2024, 6:16am UTC](https://mediasoup.discourse.group/t/screen-sharing/6377 "2024-12-12T06:16:44Z")
How can I implement screen sharing so that only one user can share their screen at a time? Currently, multiple users can share their screens simultaneously. I want it such that if User A is sharing their screen, it is vi… --- ## [A vue3 demo](https://mediasoup.discourse.group/t/a-vue3-demo/6370)
**Author:** [@explore-pu](https://mediasoup.discourse.group/u/explore-pu)\ **Replies:** 2\ **Last updated:** [December 3, 2024, 12:51am UTC](https://mediasoup.discourse.group/t/a-vue3-demo/6370 "2024-12-03T00:51:43Z")
Here’s an example I wrote based on Vite + Vue3, please give me some suggestions,thanks --- ## [the benefit of protoo](https://mediasoup.discourse.group/t/the-benefit-of-protoo/6244)
**Author:** [@musta201](https://mediasoup.discourse.group/u/musta201)\ **Replies:** 3\ **Last updated:** [September 24, 2024, 6:22pm UTC](https://mediasoup.discourse.group/t/the-benefit-of-protoo/6244 "2024-09-24T18:22:07Z")
What is the benefit of using protoo for signaling instead socket.io ? iam new to the area of this signaling and i notice some bug happen a lot more often when using websocket like doublicat the messages. --- ## [Mediasoup Demo Error](https://mediasoup.discourse.group/t/mediasoup-demo-error/6255)
**Author:** [@agoenks29D](https://mediasoup.discourse.group/u/agoenks29D)\ **Replies:** 0\ **Last updated:** [September 13, 2024, 4:58pm UTC](https://mediasoup.discourse.group/t/mediasoup-demo-error/6255 "2024-09-13T16:58:34Z")
I am trying to access mediasoup demo site, but there is an error with the websocket connection. I think the SSL certificate has expired --- ## [Issues with Mediasoup Broadcast](https://mediasoup.discourse.group/t/issues-with-mediasoup-broadcast/6250)
**Author:** [@technicalbirdVayuz](https://mediasoup.discourse.group/u/technicalbirdVayuz)\ **Replies:** 1\ **Last updated:** [September 13, 2024, 4:49am UTC](https://mediasoup.discourse.group/t/issues-with-mediasoup-broadcast/6250 "2024-09-13T04:49:22Z")
Hi, We have configured the mediasoup for normal video/audio calls and its working fine, We need to configure the Broadcasting layer, have gone through the docs for the mediasoup-broadcaster-demo but that’s facing compil… --- ## [Mediasoup demo stopped working](https://mediasoup.discourse.group/t/mediasoup-demo-stopped-working/6152)
**Author:** [@daholino](https://mediasoup.discourse.group/u/daholino)\ **Replies:** 4\ **Last updated:** [July 21, 2024, 6:50pm UTC](https://mediasoup.discourse.group/t/mediasoup-demo-stopped-working/6152 "2024-07-21T18:50:00Z")
Hello all! I don’t know if this is the right place to ask this but mediasoup-demo does not work (https://v3demo.mediasoup.org). It keeps saying that WebSocket connection has failed. Thanks! --- ## [How to Enable FEC in MediaSoup V3](https://mediasoup.discourse.group/t/how-to-enable-fec-in-mediasoup-v3/6138)
**Author:** [@Yangjun216](https://mediasoup.discourse.group/u/Yangjun216)\ **Replies:** 2\ **Last updated:** [July 14, 2024, 11:25pm UTC](https://mediasoup.discourse.group/t/how-to-enable-fec-in-mediasoup-v3/6138 "2024-07-14T23:25:37Z")
The video quality is not good when there is aournd 10% package lost, May I Know how do I enable the FEC for audio and video in MediaSoup V3? Thank you --- ## [graying out of the remote video](https://mediasoup.discourse.group/t/graying-out-of-the-remote-video/706)
**Author:** [@magnito2](https://mediasoup.discourse.group/u/magnito2)\ **Replies:** 5\ **Last updated:** [March 30, 2020, 11:16am UTC](https://mediasoup.discourse.group/t/graying-out-of-the-remote-video/706 "2020-03-30T11:16:27Z")
Hi, I have a problem similar to remote video sometimes becomes gray I cant say I’ve fully read and understood the docs, might have missed something, but that happens when consumer.on('layerschange') event fires with bot… [Next page](https://mediasoup.discourse.group/c/mediasoup-demo/8.md?page=1)