Public bug reported:
I use a bookmarklet to set the playback rate on the HTML5 player element
to 4x (tested with YouTube). Chrome handles the audio flawlessly, but
Firefox becomes choppy after 2x.
Here's the bookmarklet. The following line may get mangled or removed...
"javascript:%7Bvar%20v%3Ddocument.getElementsByTagName(%22video%22)%5B0%5D%3Bv.playbackRate%3D4%3B%7Dvoid(0)%3B"
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: firefox 50.1.0+build2-0ubuntu0.16.04.1
ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35
Uname: Linux 4.4.0-57-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
AddonCompatCheckDisabled: False
ApportVersion: 2.20.1-0ubuntu2.4
Architecture: amd64
BuildID: 20161209095719
Channel: Unavailable
CurrentDesktop: GNOME
Date: Thu Jan 5 20:28:52 2017
Extensions: extensions.sqlite corrupt or missing
ForcedLayersAccel: False
IfupdownConfig:
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini
or extensions.sqlite)
InstallationDate: Installed on 2016-12-21 (16 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
IpRoute:
default via 192.168.0.1 dev enp9s0 proto static metric 100
169.254.0.0/16 dev enp9s0 scope link metric 1000
172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown
192.168.0.0/24 dev enp9s0 proto kernel scope link src 192.168.0.108 metric
100
Locales: extensions.sqlite corrupt or missing
Plugins:
Gnome Shell Integration -
/usr/lib/mozilla/plugins/libgnome-shell-browser-plugin.so (gnome-shell)
Shockwave Flash - /usr/lib/flashplugin-installer/libflashplayer.so
PrefSources: prefs.js
ProcEnviron:
LANGUAGE=en_US
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/zsh
Profiles: Profile0 (Default) - LastVersion=50.1.0/20161209095719 (In use)
RelatedPackageVersions: gnome-shell 3.18.5-0ubuntu0.2
RunningIncompatibleAddons: False
SourcePackage: firefox
Themes: extensions.sqlite corrupt or missing
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/11/2016
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1.40
dmi.board.asset.tag: Default string
dmi.board.name: X99A GODLIKE GAMING (MS-7883)
dmi.board.vendor: MSI
dmi.board.version: 1.0
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: MSI
dmi.chassis.version: 1.0
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr1.40:bd04/11/2016:svnMSI:pnMS-7883:pvr1.0:rvnMSI:rnX99AGODLIKEGAMING(MS-7883):rvr1.0:cvnMSI:ct3:cvr1.0:
dmi.product.name: MS-7883
dmi.product.version: 1.0
dmi.sys.vendor: MSI
** Affects: firefox (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug xenial
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https://bugs.launchpad.net/bugs/1654480
Title:
HTML5 sound choppy when played at 4x
Status in firefox package in Ubuntu:
New
Bug description:
I use a bookmarklet to set the playback rate on the HTML5 player
element to 4x (tested with YouTube). Chrome handles the audio
flawlessly, but Firefox becomes choppy after 2x.
Here's the bookmarklet. The following line may get mangled or removed...
"javascript:%7Bvar%20v%3Ddocument.getElementsByTagName(%22video%22)%5B0%5D%3Bv.playbackRate%3D4%3B%7Dvoid(0)%3B"
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: firefox 50.1.0+build2-0ubuntu0.16.04.1
ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35
Uname: Linux 4.4.0-57-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
AddonCompatCheckDisabled: False
ApportVersion: 2.20.1-0ubuntu2.4
Architecture: amd64
BuildID: 20161209095719
Channel: Unavailable
CurrentDesktop: GNOME
Date: Thu Jan 5 20:28:52 2017
Extensions: extensions.sqlite corrupt or missing
ForcedLayersAccel: False
IfupdownConfig:
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
IncompatibleExtensions: Unavailable (corrupt or non-existant
compatibility.ini or extensions.sqlite)
InstallationDate: Installed on 2016-12-21 (16 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64
(20160719)
IpRoute:
default via 192.168.0.1 dev enp9s0 proto static metric 100
169.254.0.0/16 dev enp9s0 scope link metric 1000
172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown
192.168.0.0/24 dev enp9s0 proto kernel scope link src 192.168.0.108
metric 100
Locales: extensions.sqlite corrupt or missing
Plugins:
Gnome Shell Integration -
/usr/lib/mozilla/plugins/libgnome-shell-browser-plugin.so (gnome-shell)
Shockwave Flash - /usr/lib/flashplugin-installer/libflashplayer.so
PrefSources: prefs.js
ProcEnviron:
LANGUAGE=en_US
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/zsh
Profiles: Profile0 (Default) - LastVersion=50.1.0/20161209095719 (In use)
RelatedPackageVersions: gnome-shell 3.18.5-0ubuntu0.2
RunningIncompatibleAddons: False
SourcePackage: firefox
Themes: extensions.sqlite corrupt or missing
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/11/2016
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1.40
dmi.board.asset.tag: Default string
dmi.board.name: X99A GODLIKE GAMING (MS-7883)
dmi.board.vendor: MSI
dmi.board.version: 1.0
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: MSI
dmi.chassis.version: 1.0
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr1.40:bd04/11/2016:svnMSI:pnMS-7883:pvr1.0:rvnMSI:rnX99AGODLIKEGAMING(MS-7883):rvr1.0:cvnMSI:ct3:cvr1.0:
dmi.product.name: MS-7883
dmi.product.version: 1.0
dmi.sys.vendor: MSI
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