By Michael Fötsch, on February 9th, 2011  TWiT and the Ubuntu terminal on a TV set via DLNA Many modern TVs (and set-top boxes, gaming consoles, etc.) support DLNA streaming. Suppose you have a PC that stores all your music, downloaded podcasts, video podcasts, photos, and so on. You can run some DLNA media server software on your PC and stream your entire media collection to your TV over your home network. No more carrying around USB sticks, it’s all in your home cloud.
On GNU/Linux, I am using MediaTomb as my DLNA server. It’s nothing fancy (it’s a file server, after all), and it just works.
Okay, this takes care of media files stored on your PC. But can we do more? Is it possible to stream a live capture of your desktop to the TV?
Let’s say you’re watching a Flash video in your browser, and there’s no way to download the video file. Or, you’re watching a live event being streamed via Flash or whatever. It would be kinda cool to be able to stream that to your TV via DLNA. And it’s possible—not trivial, mind you, but I’ve seen it working at least once…
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By Michael Fötsch, on January 2nd, 2011 UPDATE: The problem has been fixed on identi.ca’s side. Maybe the workaround will be useful to others in some other context at some other time. I will also remove the certificate mentioned below from my system. It won’t be needed any longer, and who knows what nasty side effects it might have going forward…
I ran into this problem today where Gwibber (the micro-blogging client) on Ubuntu would not work with identi.ca anymore. The bug report referred to the log file ~/.xsession-errors, which contained this message:
Traceback (most recent call last):
File “/usr/lib/python2.6/dist-packages/gwibber/microblog/network.py”, line 53, in __init__
self.curl.perform()
error: (60, ‘server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none’)
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By Michael Fötsch, on December 11th, 2010 Graziano Sorbaioli pointed out a link to the w3schools.com OS Platform Statistics. The data from their web server access logs shows which operating systems visitors to w3schools.com use.
I wanted to look at the data graphically, so I created two OpenOffice.org charts.
 Operating System Shares  OS Platform Statistics - Yearly averages Not surprisingly, around 90% of visitors run Windows. But Windows usage is declining slowly, from 93% in 2003 down to 88% in 2010. Mac and Linux* are both growing slowly but steadily (Mac faster than Linux). All other operating systems account for only 0.67%.
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By Michael Fötsch, on November 14th, 2010  FSCONS 2010 poster This year I was at FSCONS, the Free Society Conference and Nordic Summit in Göteborg. First and foremost, this was an opportunity for me to meet some of the GNU hackers I had met earlier this year at GUADEC. The conference itself covered a wide variety of topics. Unlike GUADEC, which is basically all about a single (albeit large) piece of software, FSCONS brings together technology, creative minds, social sciences, philosophy—I never heard people discussing Marshall McLuhan over a beer at 3 a.m. anywhere else.
These are my notes from the GNU Get-Together and from the FSCONS conference. There was a lot more going on there that I won’t mention. . . . → Read More
By Michael Fötsch, on November 13th, 2010 To build a debug version of exactly the package that is installed in your Debian-based GNU/Linux distribution (tested on Ubuntu 10.10):
apt-get source rhythmbox
This does not require “root” access. It will simply download the source package to the current working directory.
To build the package, you might need developer libraries of dependency packages:
sudo apt-get build-dep rhythmbox
To configure the package so that it builds a debug version that does not replace the installed package, I used:
./autogen.sh --prefix=/home/devel/rhythmbox-0.13.1/install CFLAGS="-g -O0"
All that is left to do is run make:
make -j 4
make -j 4 install
By Michael Fötsch, on August 15th, 2010 Here’s how I created the panoramas that I posted to my GUADEC 2010 photo album (on Flickr and on Picasa).
I used the Hugin panorama photo stitcher and did some post-processing using GIMP. Hugin should be available in the repositories of your GNU/Linux distro, and it’s dead simple to use.
These are four pictures I took at the intersection of Grote Halstraat, Hoogstraat, and Gravenstraat in The Hague with a camera phone. I made sure that the pictures have enough overlap. (The Hugin tutorial recommends 20% to 30% overlap.)
   
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By Michael Fötsch, on July 18th, 2010 Originally published: June 1, 2005
Table of Contents
- Abstract
- A Minimal Project
- Editing Automake-based Projects with KDevelop
- Adding Doxygen Support
- A More Complex Example
- Topics Not Covered
- Links
Abstract
This article presents several simple Automake/Autoconf-based projects. I assume that you know what Automake, Autoconf, and configure are, and that you know how to install a software package from sources (i.e., you know how to invoke "configure & make & make install"). (If you don’t, you can still follow the instructions to create a very small project to play around with.) This article does not contain lengthy explanations or detailed background information. Rather, I present a few examples that (hopefully) get the ideas across.
Some of the topics for which examples are presented:
- Doxygen support
- Multiple subdirectories
- Flex/Bison support
- Libtool Convenience libraries
- KDevelop Automake Manager
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By Michael Fötsch, on July 18th, 2010 Originally published: May 27, 2005
Table of Contents
- Abstract
- Building Manually on the Command Line
- Adding SWIG to Autoconf
- Adding SWIG to Automake
- An Example Project
Abstract
In the article Python Extensions In C++ Using SWIG, I describe how to extend Python with C++ code. That article also contains instructions for building SWIG extension DLLs on Windows. This article contains instructions for using GNU Automake and Autoconf to build SWIG extensions as shared objects on GNU/Linux.
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