1418827 - NotReadableError: Failed to allocate videosource on Win 10

Status: NEW

(Core :: WebRTC: Audio/Video, defect, P3)

Description

[Alex Chronopoulos [:achronop]]

Model: Dell XPS 13

About Support:
Name 	Firefox
Version 	59.0a1
Build ID 	20171119100329
Update Channel 	nightly
User Agent 	Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:59.0) Gecko/20100101 Firefox/59.0
OS 	Windows_NT 10.0

Steps
Go to gUM test page -> Video
(Audio along works)

Comment 1

[Alex Chronopoulos [:achronop]]

Attachment: video_engine5_logs.txt

Logs with VideoEngine:5

Let me know if you need extra info

Comment 2

[Munro Mengjue Chiang [:mchiang] Be Mozillian since 1/19/2018]

Attachment: debug.patch

Alex, I cannot reproduce the bug with my Windows10 machine.
Could you help me apply the debug.patch and collect logs with VideoEngine:5?
Thanks.

Comment 3

[Alex Chronopoulos [:achronop]]

Pushed on try because the target system does not have dev environment:
https://treeherder.mozilla.org/#/jobs?repo=try&revision=83af0bb7378472d067df1280d282584b350aee3f

Comment 4

[Alex Chronopoulos [:achronop]]

Attachment: video_engine_logs_20171121_1.txt.0

I have to say that today is working again. I could not make it not working and I did not manage to repro the crash. One thing to note is that antivirus asked for permissions in order to access the camera.

The logs attached are from opening the camera (gum test) on 3 tabs, all working correctly. That said if you don't see something obvious don't spend much time on that.

Comment 5

[Andrew Daviel]

I also have this problem in at least two Windows 10 machines.
Currently on Nightly 60.0a1.

OS Name	Microsoft Windows 10 Pro
Version	10.0.14393 Build 14393
System Type	x64-based PC

System has one Hauppauge ImpactVCB-e PCI video capture card and one StarTech composite to USB capture device.

https://mozilla.github.io/webrtc-landing/gum_test.html
video test shows a drop-down list for Camera to share:
USB 2861 Device
Hauppauge WinTV 885 Video Capture

In either case, the page displays "NotReadableError: Failed to allocate videosource"

The page works on Google Chrome on the same hardware and operating system.
There is no other application running which is using the camera.
A Java-based videoconferencing application also works normally.

A similar Hauppauge capture card works on the same page in Firefox 52.6.0 on CentOS 6, and on another computer running CentOS 7.

Comment 6

[Andrew Daviel]

Also on https://webrtc.github.io/samples/src/content/devices/input-output/
in Firefox developer edition 60.0b4 (64-bit)
on  Windows 10 Pro version 1709 build 16299.125

main.js:116:3
MediaStreamError { name: "NotReadableError", message: "Failed to allocate videosource", constraint: "", stack: "" }

again, works in Google Chrome

Comment 7

[Andrew Daviel]

Similar result in Windows 10 with a new Firefox profile, and with Windows started in "diagnostic startup" - basic devices and services only. I.e. no other applications running that could have allocated the camera card.