1305284 - webm/vp9 audio breaks off in some youtube musics

Status: RESOLVED WORKSFORME

(Core :: Audio/Video: Playback, defect, P1)

Description

[atlanto]

Attachment: Cirrus Bay - Places Unseen - YouTube.webm

STR:
1. Open https://www.youtube.com/watch?v=p42tuJnyDo4
2. Right-click the HTML5 Player, click "Stats for nerds" and ensure 'Mime Type: video/webm; codecs="vp9"'
3. Listen the music

ER:
Finished normally
AR:
At 2:59, sound breaks off.
I'm feeling it was stopping about hundreds mili-second. It's a large gap.
The progress bar of the HTML5 Player looks like buffer was dropped, or adjusted.(?)

This occurs when 'Mime Type: video/webm; codecs="vp9"'. If I disabled webm(media.webm.enabled=false), this won't occur because of 'Mime Type: video/mp4; codecs="avc1.4d400d"'. But it may not matter...

mozregression: (w/media.mediasource.webm.enabled=true)
27:20.48 INFO: Last good revision: b535fb46742b36ecc87a8d1fba4a7fad27714588
27:20.48 INFO: First bad revision: d441ac0b35aedaf1df5ffe995cd4ffaaa697ee49
27:20.48 INFO: Pushlog:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=b535fb46742b36ecc87a8d1fba4a7fad27714588&tochange=d441ac0b35aedaf1df5ffe995cd4ffaaa697ee49

27:21.51 INFO: Looks like the following bug has the changes which introduced the regression:
https://bugzilla.mozilla.org/show_bug.cgi?id=1280023

Comment 1

[atlanto]

Attachment: Sound breaks off at 2:59, watch the progress bar

https://www.youtube.com/watch?v=p42tuJnyDo4
Cirrus Bay - Places Unseen - YouTube

Comment 2

[atlanto]

Attachment: Sound breaks off at 2:25, watch the progress bar

https://www.youtube.com/watch?v=vmotO-7Bzt4
TRAVELLERS-"Magic" - YouTube

Comment 3

[atlanto]

Attachment: Sound breaks off at 2:35, watch the progress bar

https://www.youtube.com/watch?v=JDOIhPGei9E
LAMBWOOL-Floating - YouTube

Comment 4

[Alice0775 White]

[Tracking Requested - why for this release]:

[Tracking Requested - why for this release]:

I can also reproduce the problem on Nightly52.0a1 and Aurora51.0a2 Windows10.
(Tested with Comment 2, the time(2:55) that occurs is a little different)

https://hg.mozilla.org/mozilla-central/rev/60cc643978c7020926fe4145761e26945fcd5c37
Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0 ID:20160924030427

https://hg.mozilla.org/releases/mozilla-aurora/rev/9d6a1ee63674c52222be7d6bc946fbd798846dcd
Mozilla/5.0 (Windows NT 10.0; WOW64; rv:51.0) Gecko/20100101 Firefox/51.0 ID:20160924004004

Comment 5

[Jean-Yves Avenard [:jya]]

This is fixed with bug 1302573 changes applied

Comment 6

[Jean-Yves Avenard [:jya]]

Actually, no... I just can't reproduce it here using nightly 52.0a1 (2016-09-23) (64-bit) on Linux

Comment 7

[Jean-Yves Avenard [:jya]]

oh, misread. it's not that it stalls, just that audio breaks off shortly. This occurs when the audio source buffer gets full....
still will be fixed by 1302573

Comment 8

[Gerry Chang [:gchang]]

Track 51+/52+ for regression related to youtube musics.

Comment 9

[Milan Sreckovic [:milan] (needinfo for best results)]

Bug 1302573 is fixed - is this now fixed as well?  Appropriate for uplift?

Comment 10

[Jean-Yves Avenard [:jya]]

Fixed by bug 1302573.

Comment 11

[Gerry Chang [:gchang]]

Mark 51/52 fixed as bug 1302573 was fixed in 51/52.