Last modified: 2008-03-10 11:28:08 UTC

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Bug 11236 - Java error when no audio device available
Java error when no audio device available
Status: RESOLVED FIXED
Product: MediaWiki extensions
Classification: Unclassified
OggHandler (Other open bugs)
unspecified
All All
: Normal normal (vote)
: ---
Assigned To: Tim Starling
http://commons.wikimedia.org/wiki/Ima...
:
Depends on:
Blocks:
  Show dependency treegraph
 
Reported: 2007-09-08 15:05 UTC by Raimond Spekking
Modified: 2008-03-10 11:28 UTC (History)
0 users

See Also:
Web browser: ---
Mobile Platform: ---
Assignee Huggle Beta Tester: ---


Attachments
Error report when no audio device available (39.29 KB, text/plain)
2007-09-08 15:05 UTC, Raimond Spekking
Details

Description Raimond Spekking 2007-09-08 15:05:05 UTC
Created attachment 4088 [details]
Error report when no audio device available

I got the attached error report from a German user who has no audio device available on his computer.
Comment 1 Tim Starling 2007-09-08 19:16:21 UTC
What is the bug? Does the applet stop or something? What sort of system is it?
Comment 2 Raimond Spekking 2007-09-12 17:48:50 UTC
(In reply to comment #1)
> What is the bug? Does the applet stop or something? What sort of system is it?
> 

The applet starts buffering, stops and freezes after different percentages buffered.

The system data can be found in the header of the java-log-file: WinXP SP2, Java SE Runtime Environment 1.6.0_02-b06, no hardware audio system installed.
Comment 3 Brion Vibber 2007-09-13 14:59:03 UTC
I can confirm this on Windows XP SP2 (32-bit) with Java 1.6.0_02-b06 in IE 7.

If I disable the audio device (in VMWare this is a virtual Ensoniq AudioPCI es1371), then fire up the Java player for an OGG with video (added a URL for one), the video display freezes up fairly quickly. Either the picture area remains black, or sometimes half a frame is painted etc.

The status bar still says "buffering", and the controls respond in the UI but appear to cease functioning.

Opening the Java console, I see the exception backtrace.

Cortado probably just assumes audio is available and dies a horrible death when it turns out not to be. Better behavior would be to detect the failure to open and just silently eat the audio stream.
Comment 4 Brion Vibber 2007-09-13 15:11:50 UTC
Reported on Fluendo's trac at:
https://core.fluendo.com/flumotion/trac/ticket/756

but we'll probably have to fix it ourselves, I'm told. :)
Comment 5 Brion Vibber 2007-09-13 15:17:10 UTC
To clarify -- disable via the Windows multimedia control panel, hardware tab; not in VMWare's controls. (Disabling VMWare's audio device just makes it so the virtual machine's audio is hidden. You need to disable Windows' own driver.)
Comment 6 Tim Starling 2008-03-10 11:28:08 UTC
Fixed in r31743.

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