1942503 - AAC and H254 and HEVC decoders unsupported even with Windows Media feature Pack on Windows 10

Status: RESOLVED DUPLICATE of bug 1942047

(Core :: Audio/Video: Playback, defect)

Description

[Ralihan]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:134.0) Gecko/20100101 Firefox/134.0

Steps to reproduce:

1. Open specific videos on youtube(not every) like: https://www.youtube.com/watch?v=xN5_VO7Nbu8
   2.Or try watch reddit videos.
2. Or try listening to audios or watching videos on web.telegram.org

Actual results:

1. "Your browser can't play this video." Sometimes "An error occured. Playback Id: ....."
   Here is profiler: https://share.firefox.dev/40pZPSG
2. Usually videos don't load, sometimes load but with no audio
3. No audio

Expected results:

1. Videos load
2. Videos load and audio plays
3. Sound plays

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Audio/Video: Playback' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[Ralihan]

SOLVED: 1. Install Media Feature Pack for Windows N. Type in windows search Optional Features, then add it.
2. You might need to enable in like this guy did https://answers.microsoft.com/en-us/windows/forum/all/media-feature-pack-not-working/12c6f866-e9f6-426e-9bd8-2d668db8e70f
3. And the main thing is: UPDATE YOUR WINDOWS