1614698 - Video Stutter when playing Microsoft Mixer Stream via low latency mode

Status: NEW

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

Description

[hong620]

Attachment: aboutsupport.txt

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:72.0) Gecko/20100101 Firefox/72.0

Steps to reproduce:

watch streams from Microsoft Mixer website

Actual results:

Streams only stutter when player using Low Latency mode(Default)

Expected results:

I've compare the FF and Chakra engine base Edge Browser
on Edge, there's no stutter when watching Low Latency Mode.

i wasn't tested from other browser, and dunno which part (FTL protocol or Video playback) is cause the problem.

Comment 1

[Alastor Wu [:alwu]]

Hi,
Could you provide the information from about:support to help us diagnose issue?
Thank you.

Comment 2

[hong620]

(In reply to Alastor Wu [:alwu] from comment #1)

Hi,
Could you provide the information from about:support to help us diagnose issue?
Thank you.

already attachment as txt (i Couldn't find export as proper format.. as i've remembered, old FF has button for that..)
but attachment all log seems my misstake, only valuable information that could helped to diagnose on this issue seems HW information.

my spec is Nvidia GTX980ti(GM200, Forceware 441.87 DCH) with AMD Ryzen 2700x, Windows 10 1909(18363.628), gpu accelation in Firefox is On, Contents Process Limit is Default (8), both FF and Windows are 64bit.

Comment 3

[Alastor Wu [:alwu]]

Hi, jya,
this is an low latency issue as well, and wonder if you have any idea about this one.

Comment 4

[Jean-Yves Avenard [:jya]]

whenever this has happened in the past, it was to do with the timestamps and duration being returned that were invalid when low latency was turned on.

it has required several workaround to identify the differences on why it happened, or simply hack it to make an exception

Comment 5

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

The priority flag is not set for this bug.
:bryce, could you have a look please?

For more information, please visit auto_nag documentation.

Comment 6

[Adam Stevenson [:adamopenweb]]

Thanks for reporting hong620.

On average, how long do you need to watch a stream before noticing the issue?

Comment 7

[hong620]

(In reply to Adam Stevenson [:adamopenweb] from comment #6)

Thanks for reporting hong620.

On average, how long do you need to watch a stream before noticing the issue?

not much take time to experience that issue, almost instant that with start to view the streams.

you can reproduce with any video streams that use FTL on mixer right now.

acctual webcam footage one are much easier to visible this stutter issue then usual game streams

but this is late night time here so i couldn't pick those right now.

feels like little force reversed frame mixing but i'm not sure how to define this issue exactly.

https://send.firefox.com/download/adbbeadaa2a52b90/#62bnVmFog-UsioQk4Hrpuw

Comment 8

[Adam Stevenson [:adamopenweb]]

Thanks for providing, I forgot that I downloaded this file. Just pushed it to Google drive to share with others.

hong620: please let me know if you have concerns with it being shared.

https://drive.google.com/file/d/1wineRK_xldVZeg3tc0IszeTOfmtudhlv/view?usp=sharing

Comment 9

[hong620]

(In reply to Adam Stevenson [:adamopenweb] from comment #8)

Thanks for providing, I forgot that I downloaded this file. Just pushed it to Google drive to share with others.

hong620: please let me know if you have concerns with it being shared.

https://drive.google.com/file/d/1wineRK_xldVZeg3tc0IszeTOfmtudhlv/view?usp=sharing

re-encode to 30frame video by youtube/gdrive would be hard to notify the issue to check.

i think just describe about 'open anythings on mixer right now and check side by side' is enough for other peoples.

also, i'm not a owner or host of those streams but seems there's no issues to share those i guess.
(broadcast streams are already in 'okay to share' state in law right?)

Comment 10

[hong620]

(In reply to Adam Stevenson [:adamopenweb] from comment #8)

i think we're okay to close this issue,

Microsoft settle to shutdown the Mixer Services.

and there's no further announce of FTL stream over web browser, and.. in current state of XCloud, they seems deliver stream from own native applications only, not trough web browser as well.