Libv4l Upside Down Webcams - Revision history

Upsidedown: /* Ubuntu Precise */

2012-10-01T20:12:11Z

Ubuntu Precise

← Older revision		Revision as of 20:12, 1 October 2012
Line 21:		Line 21:

	Because Skype is a 32bit binary one needs to install the 32bit libv4l-0 package:		Because Skype is a 32bit binary one needs to install the 32bit libv4l-0 package:
		+	dpkg --add-architecture i386
		+	apt-get update
	apt-get install libv4l-0:i386		apt-get install libv4l-0:i386

	Edit /usr/share/applications/skype.desktop and replace the Exec line with:		Edit /usr/share/applications/skype.desktop and replace the Exec line with:
	Exec=sh -c 'LD_PRELOAD=/usr/lib/i386-linux-gnu/libv4l/v4l1compat.so skype'		Exec=sh -c 'LD_PRELOAD=/usr/lib/i386-linux-gnu/libv4l/v4l1compat.so skype'

Upsidedown at 12:03, 19 August 2012

2012-08-19T12:03:17Z

← Older revision		Revision as of 12:03, 19 August 2012
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	== Ubuntu ==		== Ubuntu ==

-	Add the stable libv4l PPA:	+	Add the stable libv4l PPA and upgrade packages:
-	~~<code>~~apt-add-repository ppa:libv4l/stable~~</code>~~	+	apt-add-repository ppa:libv4l/stable
-		+	apt-get update
-	~~Update package lists~~	+	apt-get upgrade
-	~~<code>~~apt-get update~~</code>~~	+
-		+
-	~~Update packages~~	+
-	~~<code>~~apt-get upgrade~~</code>~~	+

	= Fix upside down webcams in Skype =		= Fix upside down webcams in Skype =
Line 24:		Line 20:
	== Ubuntu Precise ==		== Ubuntu Precise ==

-	~~Install~~ 32bit libv4l-0 package:	+	Because Skype is a 32bit binary one needs to install the 32bit libv4l-0 package:
-	~~<code>~~apt-get install libv4l-0:i386~~</code>~~	+	apt-get install libv4l-0:i386

	Edit /usr/share/applications/skype.desktop and replace the Exec line with:		Edit /usr/share/applications/skype.desktop and replace the Exec line with:
-	~~<code>~~Exec=sh -c 'LD_PRELOAD=/usr/lib/i386-linux-gnu/libv4l/~~v4lcompat~~.so skype'~~</code>~~	+	Exec=sh -c 'LD_PRELOAD=/usr/lib/i386-linux-gnu/libv4l/v4l1compat.so skype'

Upsidedown: Created page with "This page is supposed to give guidance if the webcam image is displayed upside down. = Upgrading libv4l package to latest stable = The upside down table included in libv4l gets..."

2012-08-19T11:56:29Z

Created page with "This page is supposed to give guidance if the webcam image is displayed upside down. = Upgrading libv4l package to latest stable = The upside down table included in libv4l gets..."

New page

This page is supposed to give guidance if the webcam image is displayed upside down.

= Upgrading libv4l package to latest stable =

The upside down table included in libv4l gets updated with new laptop / webcam combinations that also suffer the upside down webcam problem. Although it's possible to compile and instal a newer libv4l by hand, installing an updated distribution package is preferable.

A good hint if it's worth to upgrade libv4l is to run the qv4l2 program from v4l-utils. If the image there is correct, there is no need to upgrade. If it's upside down, upgrading is a good idea.

== Ubuntu ==

Add the stable libv4l PPA:
<code>apt-add-repository ppa:libv4l/stable</code>

Update package lists
<code>apt-get update</code>

Update packages
<code>apt-get upgrade</code>

= Fix upside down webcams in Skype =

To fix the upside down camera problem for most Skype users it's necessary to preload the v4l1convert library. This can be either done from the command line or more convenient by editing the skype.desktop file.

== Ubuntu Precise ==

Install 32bit libv4l-0 package:
<code>apt-get install libv4l-0:i386</code>

Edit /usr/share/applications/skype.desktop and replace the Exec line with:
<code>Exec=sh -c 'LD_PRELOAD=/usr/lib/i386-linux-gnu/libv4l/v4lcompat.so skype'</code>