1957839 - Video stream turns black after uploading image via camera on mobile Firefox

Status: UNCONFIRMED

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

Description

[vilgeforc5]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36
Firefox for Android

Steps to reproduce:

1. request MediaStream
   const stream = navigator.mediaDevices.getUserMedia({
   audio: true,
   video: true,
   })
2. attach it to video element
   videoEl.srcObject = stream
3. upload picture file via <input type="file" /> (Not from gallery, but actually using camera)

Firefox version 136.0.2
MRE link: https://codesandbox.io/p/sandbox/rg62yq

Actual results:

After uploading picture the video stream becomes black

Expected results:

The video should remain the same (as it is in all other browsers I've tested)

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

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

The severity field is not set for this bug.
:jimm, could you have a look please?

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