Unsolved Udemy video doesnt work

ptaku2

Hello

My udemy course video doesnt work. I hada pause so no idea when it stopped workin. The only extension I use is Bitwarden now. Everything is updated for Vivaldi. The same course works under Safari so strange. I tried with and without hardware acceleration.

Zalex108

@ptaku2

Hi,

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Please,
On each report add:

Vivaldi Version: |

Since when happens: |

OS / Version / DE |

URL |

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Look here
https://forum.vivaldi.net/search?in=titlesposts&term=udemy video &matchWords=all&by=&categories=&searchChildren=false&hasTags=&replies=&repliesFilter=atleast&timeFilter=newer&timeRange=&sortBy=timestamp&sortDirection=desc&showAs=topics

Then,
If needed:
Start with the Basic Desktop Troubleshooting Steps.

Extras

Clean Site Data
Clean Service Workers
vivaldi://serviceworker-internals/
Reset Flags
vivaldi://flags [If personally enabled]
Disable CSS / JS Mods

Regarding Bug Hunting
Regarding Downgrades

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Also,
Some useful links:

Forums	Community	Official Tutorials	Official Help

Forum Categories	Modding Vivaldi	Vivaldi Features	Vivaldi Help
Forum Markdown	Panels • Engines	Vivaldi Tutorials	Issues
Feature Requests ¿?	Menus • Guides • FAQ	Vivaldi How To	Bug Reports

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Avoid Data loss
Follow the Backup | Reset links below

Vivaldi Backup | Reset + Extra Steps

ptaku2

I guess it's not just "video doesn't work in Vivaldi under OSX" but it seems that it's rather "encrypted video in Udemy doesn't work in Vivaldi".
Fortunately it works with Safari...

skorpius

hello, same here on my Windows machine ever since, all encrypted videos of Udemy doesn't work on Vivaldi.

these videos works well in FireFox, Chrome and Opera. i just wish that i won't be needing to use other browsers for my Udemy tutorials.

here's a link of a sample video:
https://www.udemy.com/course/foundation-course/learn/lecture/7549744#overview

Pathduck

@skorpius That video works fine in Vivaldi, tested in a clean profile of Vivaldi 7.1 on Windows 10.

Of course this is only a preview video so I don't know if it's encrypted.

I do have access to an old course on Udemy, I believe this one is encrypted and it also plays fine in Vivaldi:

At least the Media tab of devtools says:
Selected DecryptingVideoDecoder for video decoding, config: codec: h264, profile: h264 main, level: not available, alpha_mode: is_opaque, coded size: [1920,1080], visible rect: [0,0,1920,1080], natural size: [1920,1080], has extra data: false, encryption scheme: CENC, rotation: 0°, flipped: 0, color space: {primaries:BT709, transfer:BT709, matrix:BT709, range:LIMITED}

The content information also says:
Content type: Video
Course contains encrypted videos: Yes
Is this video encrypted: Yes, DRM used:

skorpius

the first video (preview) is not encrypted and played in my Windows machine

i paid for that course, the succeeding videos tho not all are encrypted and won't play.

Pathduck

@skorpius Well, encrypted videos on Udemy play fine here.

I suggest you start by testing in a clean profile.

Please try the troubleshooting steps, including testing in a clean profile and disabling adblocking/extensions:
https://help.vivaldi.com/desktop/troubleshoot/troubleshooting-issues/

Pathduck

Here are some DRM protected example videos, these all play fine in my Vivaldi 7.1 Stable.

https://bitmovin.com/demos/drm/
https://www.nuevodevel.com/nuevo/showcase/drm
https://buydrm.com/multikey-demo/
https://www.theoplayer.com/theoplayer-drm-aes-128-encryption
https://s3bubble.com/documentation/example-ezdrm-widevine-fairplay-playready-dash-hls/

skorpius

thanks for the suggestions.

have already tried all the suggestions since last year, clean profile, new install, etc . . .

i had the same issue in 2022, it worked again sometime in 2023 and stopped working again last year

Chas4

Does it work if you turn off the ad blocker or tracker blocker in Vivaldi?