1078118 - Youtube HTML5 video stops playing after moving seek bar to outside of buffered area.

Status: VERIFIED FIXED

(Core :: Audio/Video, defect)

Description

[vijay krishna m]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:33.0) Gecko/20100101 Firefox/33.0
Build ID: 20141002185629

Steps to reproduce:

1. Start playing HTML5 youtube video: https://www.youtube.com/watch?v=LTnkqaWW1CY

2. Wait for buffering.
3. Move the seek bar back and forward.


Actual results:

1. Move the seek bar forward within buffered zone -- this works. Video plays correctly.
2. Move the seek bar past the buffered zone -- this doesn't work. Video pauses. Some times I hear only audio.
3. Move the seek bar back after letting video play for several minutes--this doesn't work. Video pauses.

I tried "3" after going back and clicking link again starting video from beginning


Expected results:

Video should play correctly when moving seek bar.

This bug is similar to bug #1040552 which is RESOLVED-FIXED. 

I checked about:config and media.mediasource.enabled is set to true.

I am using OpenSuse 13.1

Comment 1

[Alice0775 White]

media.mediasource.enabled is false in Firefox33 and Aurora by default.

You should try in Nightly35.0a1.

Comment 2

[vijay krishna m]

I tried it in Nightly.

Moving the seek bar past the buffered zone doesn't work.

Moving the seek bar past the buffered zone and then moving it back also doesn't work.

Comment 3

[Alice0775 White]

I can reproduce the problem on Windows7 and Ubuntu12.04 with media.mediasource.enabled = true.

Steps To Reproduce:
1. Set media.mediasource.enabled = true
2. Open http://www.youtube.com/watch?v=O6tra0YF22k for exsample
   And skip ad if any
3. move seek bar to outside of buffered area

Actual Results:
Video stops with spinning throbber. and no network activity.

Expected results:
The video should be played and buffered properly.


Regression window(m-i)
Good:
https://hg.mozilla.org/integration/mozilla-inbound/rev/6122db43cad3
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:35.0) Gecko/20100101 Firefox/35.0 ID:20140930200924
Bad:
https://hg.mozilla.org/integration/mozilla-inbound/rev/5997c0f393ba
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:35.0) Gecko/20100101 Firefox/35.0 ID:20140930203524
Pushoog:
https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=6122db43cad3&tochange=5997c0f393ba

Regressed by: Bug 1074004

Comment 4

[Alice0775 White]

[Tracking Requested - why for this release]:

Comment 5

[Matthew Gregan [:kinetik]]

Bug 1077086 will fix the regression from bug 1074004.

Comment 6

[Matthew Gregan [:kinetik]]

(In reply to Matthew Gregan [:kinetik] from comment #5)
> Bug 1077086 will fix the regression from bug 1074004.

A regression, but apparently this is a different one.  I think I know what it is.

Comment 7

[Matthew Gregan [:kinetik]]

The patch I pushed in bug 1077086 will fix this.

Comment 8

[Lukas Blakk [:lsblakk] use ?needinfo]

Fixed by bug 1077086 on 35, so not tracking.

Comment 9

[Ada [:adalucinet]]

Reproduced with Nightly 2014-10-05 on Windows 7 64-bit with str from comment 0/comment 3.
Verified as fixed with Firefox 35 beta 5 (Build ID: 20141218174327) on Windows 7 x64, Mac OS X 10.9.5 and Ubuntu 12.04 x32. 
Although, if I request the HTML5 player via https://www.youtube.com/html5, play again the video(s) and seek forward/back a couple of times, the video blocks (no spinning throbber) on all platforms.
Matthew, any ideas on this?

Comment 10

[Matthew Gregan [:kinetik]]

(In reply to Alexandra Lucinet, QA Mentor [:adalucinet] from comment #9)
> Matthew, any ideas on this?

No, sorry.  That sounds like a new/different issue.  Might be worth filing a new bug if you can reproduce it reliably.