1246724 - Streaming video playback stutters for YouTube HTML5 playback

Status: RESOLVED DUPLICATE of bug 1260611

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

Description

[Andreas Schiffler]

User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; Touch; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729; rv:11.0) like Gecko

Steps to reproduce:

Watch http://digg.com/video/adam-savage-blade-runner-gun on PC with good connection to internet. No/low CPU load. No other applications using GPU.


Actual results:

Video playback is "glitchy" and stutters frequently during the playback.


Expected results:

Video playback is smooth and has no issues.

Comment 1

[Andreas Schiffler]

Attachment: YouTube-HTML5player-debugInfo.txt

Comment 2

[Andreas Schiffler]

Video capture of the issue is available (can't upload the 120MB file).

Comment 3

[Andreas Schiffler]

Attachment: dxdiag.txt

Comment 4

[Loic]

WFM with FF44/47.

Comment 5

[Andreas Schiffler]

Here is the video capture that shows the stuttering: http://www.ferzkopp.net/Videos/FF-YouTubeHtml5-VideoPlaybackIssues-19s-and-35s-intoClip.mp4

Comment 6

[Andreas Schiffler]

Version is 44.0.1 - Build identifier: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:44.0) Gecko/20100101 Firefox/44.0

Comment 7

[mail]

Can confirm this.

It only seems to happen in fullscreen for me. This is another video very the problem seems to be even more prominent https://www.youtube.com/watch?v=QzVGf-K2heg  

I have updated to the latest Firefox Beta (45.0b5) and Intel HD520 driver beta (15.40.18.4380) without any change in behavior. 

Microsoft Internet Explorer and Edge do not seem to exhibit the same problem.

Comment 8

[Andreas Schiffler]

Still happens to me in FF 45.0 with pretty much all streaming videos (Facebook embedded stuff, YouTV.de) in windowed and fullscreen modes. Very annoying (aka I am about to switch default browser settings).

Comment 9

[JW Wang [:jwwang] [:jw_wang]]

(In reply to Andreas Schiffler from comment #5)
> Here is the video capture that shows the stuttering:
> http://www.ferzkopp.net/Videos/FF-YouTubeHtml5-VideoPlaybackIssues-19s-and-
> 35s-intoClip.mp4

Similar to bug 1236112. Can you try the video link in bug 1236112 comment 0?

Comment 10

[mail]

That is exactly how it looks like for me

Comment 11

[JW Wang [:jwwang] [:jw_wang]]

Let's wait for bug 1236112 to see if it also fixes the problem here.

Comment 12

[Andreas Schiffler]

Yes, I see the same jitters as shown in the video of bug 1236112/comment 0 as well. I tried https://www.youtube.com/watch?v=SGP6Y0Pnhe4 (1080p, 60fps source) and jitters started 10secs into the playback. Jitters seem worse on lower resolutions actually: 480@30 seems worse than 720@60 seems worse than 1080@60 (just a hunch after watching the video at different speeds for a few minutes).

Comment 13

[Virtual_ManPL [:Virtual] 🇵🇱 - (please needinfo? me - so I will see your comment/reply/question/etc.)]

Is it still reproducible?
Patch from bug #1236112 landed and could fixed this.

Comment 14

[Andreas Schiffler]

Yes - 100% repro of jitters using the previous link (https://www.youtube.com/watch?v=SGP6Y0Pnhe4) link after about 22sec into the playback. I am running FF 45.0.2. Let me know if there is a way to collect telemetry during playback.

Comment 15

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

Sounds to me like bug 1260611 to me. Is it fixed in this build:

> use-a-queue-for-recycling 
> https://treeherder.mozilla.org/#/jobs?repo=try&revision=0e739bc67de5

Comment 16

[Andreas Schiffler]

(In reply to Anthony Jones (:kentuckyfriedtakahe, :k17e) from comment #15)
> Sounds to me like bug 1260611 to me. Is it fixed in this build:
> 
> > use-a-queue-for-recycling 
> > https://treeherder.mozilla.org/#/jobs?repo=try&revision=0e739bc67de5

If you get me a binary for "this build", I'd be happy to try it out.

Comment 17

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

(In reply to Andreas Schiffler from comment #16)
> If you get me a binary for "this build", I'd be happy to try it out.

You need to click around that page to get to the build. The fix should be in nightly now. Is your issue still reproducible?

Comment 18

[Laketaweston]

i dont understand how to remove them

Comment 19

[Loic]

(In reply to Laketaweston from comment #18)
> i dont understand how to remove them

Nighty can be downloaded here: https://nightly.mozilla.org/

Comment 20

[Andreas Schiffler]

Seems fixed. Issue does not repro on Nightly 49.0a1 (2016-05-20) against previous video (https://www.youtube.com/watch?v=SGP6Y0Pnhe4) after multiple minutes of playback at different stream qualities and playback speeds.

Comment 21

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

Mass change P2 -> P3

Comment 22

[Andrew Overholt [:overholt]]

Anthony, do we need to backport something here, given comment 20?

Comment 23

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

(In reply to Andrew Overholt [:overholt] from comment #22)
> Anthony, do we need to backport something here, given comment 20?

My understanding is that this is fixed in 47. Let me know if that is not the case.