[webkit-gtk] Webkit seizes sound device

[Philippe Normand]

On Sun, 2013-12-01 at 14:25 -0700, Jeffrey Barish wrote:
> On Sunday, 01 December 2013 22:06:12 Philippe Normand wrote:
> > On 2013-12-01 17:26, Jeffrey Barish wrote:
> > > On Sunday, 01 December 2013 16:44:22 Philippe Normand wrote:
> > >> Which website are you trying to visit exactly?
> > > 
> > > Wikipedia.  The page about John Philip Sousa, for example.
> > 
> > So you play the audio on that page and the audio device is not released,
> > right?
> > That bug has been fixed in version 1.11.1. 1.8.3 is quite old, I advise
> > you to report
> > that issue in Ubuntu's bug tracker, perhaps someone would cherry-pick
> > the patch:
> > 
> > https://bugs.webkit.org/show_bug.cgi?id=89122
> > 
> > Philippe
> > 
> 
> I don't actually play the audio, I just land on the page.  The audio device 
> goes to state PREPARED.  It remains in that state until I navigate away from 
> the web page.
> 

This is impossible (on that Wikipedia page) unless you use some weird
NPAPI plugin...

> In the bug that you referred to, the state went to RUNNING.  The situation I 
> am encountering seems different.  Maybe it is intended that the state should go 
> to PREPARED, but the effect is that no other program can use the audio device, 
> even one that actually has something to play.  The application running webkit 
> will never actually play anything, so it would be unfortunate if there weren't 
> a way to prevent webkit from monopolizing a device that it only thinks it 
> might use.

What is the application exactly?

Philippe

> 
> > >> The webaudio setting would be useful only for websites using the
> > >> WebAudio API... Anyway, WebAudio is not even enabled in the build yet
> > >> so
> > >> this setting has no effect at all.
> > >> 
> > >> Which version of the webkitgtk package are you using exactly?
> > > 
> > > dpkg says
> > > 
> > > libwebkitgtk-1.0-0                   1.8.3-0ubuntu0.12.04.1
> > > 
> > >> Can you test the latest stable release?
> > > 
> > > Probably beyond my abilities.  If it's available as a deb package
> > > maybe.
> > > 
> > >> Philippe
> > >> 
> > >> On Sat, 2013-11-30 at 10:00 -0700, Jeffrey Barish wrote:
> > >> > Apologies to those who have seen this message on the webkit mailing
> > >> > list.
> > >> > I erroneously subscribed to that list before understanding that I
> > >> > should
> > >> > have subscribed to this one.
> > >> > 
> > >> > When I visit a web page that wants to play a sound, webkit opens the
> > >> > sound
> > >> > device and never lets go of it until I navigate away from the page.  I
> > >> > would like for webkit not to open the sound device (and to ignore any
> > >> > play request, obviously).  Is there a way to tell webkit globally that
> > >> > it
> > >> > should ignore all sounds and never, ever open the sound device?
> > >> > 
> > >> > I am on Lubuntu 12.04.  webkit appears to be 1.0.
> > >> > 
> > >> > I found the enable_webaudio property in WebSettings.  It seemed as if
> > >> > it
> > >> > would solve my problem, but it was already at its default value
> > >> > (False).
> > >> > 
> > >> > I tried changing some settings in dconf-editor:
> > >> > 
> > >> > org | gnome | desktop | media-handling | autorun-never -> ticked
> > >> > org | gnome | desktop | media-handling | autorun-x-content-ignore ->
> > >> > ['audio/ogg']
> > >> > desktop | gstreamer | 0.10 | default-elements |
> > >> > {chat,music,sounds}-audiosink -> fakesink
> > >> > 
> > >> > all to no avail.  Any suggestions?  My best idea at this point is to
> > >> > filter the <audio></audio> item out of the html, but I think that's a
> > >> > pretty bad idea.
> > >> > 
> > >> > Jeff
> > >> > _______________________________________________
> > >> > webkit-gtk mailing list
> > >> > webkit-gtk at lists.webkit.org
> > >> > https://lists.webkit.org/mailman/listinfo/webkit-gtk
> > >> 
> > >> _______________________________________________
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> > >> webkit-gtk at lists.webkit.org
> > >> https://lists.webkit.org/mailman/listinfo/webkit-gtk
> > > 
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> > 
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