Wednesday, January 8 2014
By Rémi Duraffort on Wednesday, January 8 2014, 15:20
We will be at FOSDEM to talk about PRoot and some other tools based on it.
Cedric will do a Lightning talk saturday about syscall instrumentation. He will present some tools, based on syscall instrumentation, that we develop and use at STMicroelectronics:
- PRoot, emulate chroot, bind mount and binfmt_misc for non-root users
- CARE (aka. Comprehensive Archiver for Reproducible Execution), creates automatically an archive that contains all the material required to re-execute the monitored programs in their original context (environment, files, expected kernel features, ...)
- DepsTracker (to be released soon), observes the execution of any processes in order to compute their mutual dependencies with respect to the file-system
Hope to see you there.
Thursday, November 21 2013
By Rémi Duraffort on Thursday, November 21 2013, 09:36 - PRoot
While working on PRoot to improve the extension that fake the root user, I (re)discovered an old article that I never published before. So let's focus on the fake_id0 feature and on how it allows to use package manager directly inside the root file systems.
Tuesday, August 20 2013
By Rémi Duraffort on Tuesday, August 20 2013, 13:40 - PRoot
A really short message to inform you that PRoot is now part of Debian Sid.
You can now install PRoot with
apt-get install proot.
Monday, September 24 2012
By Rémi Duraffort on Monday, September 24 2012, 20:00 - Geek
Using valgrind on time-dependent softwares like VLC media player is often a nightmare and leads to poor results. Let's present a simple and elegant way to workaround this issue
Friday, May 4 2012
By Rémi Duraffort on Friday, May 4 2012, 23:23 - PRoot
In my previous article, I showed a way to setup and jump into a root file system in order to test a software in this environment.
Using PRoot, such task looks really easy and does not require any privileges. We will now finish this setup in order to build and test VLC media player in this new root file system.
Monday, April 16 2012
By Rémi Duraffort on Monday, April 16 2012, 09:43 - PRoot
A good practice for software developer is to provide a test suite while developing a software. When developing for Linux, it's also a good practice to compile the software and run the test suite on many distributions like Debian, Ubuntu, Fedora, ArchLinux, Centos, Slackware and for both i386 and x86_64.
Usually, softwares are compiled and tested on only one distribution because setting up the right environment is long and painful. Most of the time root privileges are also required to setup such environment.
In this article and the following one, I will show that using PRoot, such testing is quite handy and can be done by any users.
Monday, April 9 2012
By Rémi Duraffort on Monday, April 9 2012, 17:01 - PRoot
It's been a long time since my last post on thit blog. To start again in a good shape I will seize the opportunity of a new version of PRoot to present this open source software in a cycle of articles.
Wednesday, February 2 2011
By Rémi Duraffort on Wednesday, February 2 2011, 19:35 - VLC media player
A lot of people are asking about the status of VLC media player on Android. We usually answered that we are working on it. Now that some good progresses has been done, lets look at the current status of VLC media player for Android.
Thursday, November 11 2010
By Rémi Duraffort on Thursday, November 11 2010, 19:23 - VideoLAN
We went to the Google Mentor Summit in California for the week-end, let's talk a bit about it ...
Saturday, November 6 2010
By Rémi Duraffort on Saturday, November 6 2010, 14:08 - VideoLAN
Google just released the list of organizations that will participate to the Google Code In contest and VideoLAN is part of it!
Sunday, October 31 2010
By Rémi Duraffort on Sunday, October 31 2010, 12:16 - VideoLAN
In another post, I told you about a nice tool called Multicat.
Due to the the Freeze of Debian, Multicat was waiting in the NEW queue. This state changed yesterday has the ftp-masters uploaded the package to the unstable version of Debian.
If you run a Debian unstable you can now install Multicat like any other tools. For every other people, just grab the .deb package that correspond to you architecture and install it. You must be able to install it on older version of Debian as well.
Thursday, October 21 2010
By Rémi Duraffort on Thursday, October 21 2010, 10:34 - VideoLAN
Google Mentor Summit
A quick note to announce that we will be at the Google Mentor Summit in California this week-end. This meeting is organized by Google to close the Google Summer of Code and to meet developers from different Free Softwares projects.
Two developers from the VideoLAN project and VLC media player will be present to speak about multimedia, Free Software and many more things.
I will take some picture of the event and post them back here afterward...
Friday, October 1 2010
By Rémi Duraffort on Friday, October 1 2010, 13:13 - VLC media player
Compiling VLC media player on Linux is now something really easy. This article is a small tutorial for every people wondering about it.
Monday, September 13 2010
By Rémi Duraffort on Monday, September 13 2010, 19:17 - VLC media player
Thanks to VLC extensions, we recently created a script that fetch books from LibriVox. This website is a directory and a project that provide free audio books from the Public Domain like Frankenstein (Mary Shelley) or War and Peace (Leo Tolstoy).
Thursday, September 2 2010
By Rémi Duraffort on Thursday, September 2 2010, 13:27 - VideoLAN
Multicat is an equivalent of the famous netcat but designed with streaming and especially RTP in mind.
Wednesday, August 18 2010
By Rémi Duraffort on Wednesday, August 18 2010, 15:23 - VLC media player
Actually more and more artists are following the Open Source movement and create really nice content (both audio and video). Since the lastest release of VLC media player (1.1.0), thanks to VLC extensions, we added the ability to access selections of Free Music directly from the playlist. Let's have a look at these contents.
Friday, July 30 2010
By Rémi Duraffort on Friday, July 30 2010, 00:02 - Geek
ZFS is a really powerful and convenient file system but the way ZFS works makes some tools absolutely inefficient...
Wednesday, July 14 2010
By Rémi Duraffort on Wednesday, July 14 2010, 16:08 - VLC media player
We have reduced the memory footprint of VLC media player only by repacking some important structures. Let's have a look at the way the structures are arranged in memory and its impact on the memory usage.
Monday, February 1 2010
By Rémi Duraffort on Monday, February 1 2010, 15:21 - VLC media player
Last summer, I worked on VLC media player as part of the Google Summer of Code,
One part of my job was to integrate libprojectM inside VLC media player.
libprojectM is a library that create visualisation accoring to the samples it receive. As you can see the results are really amazing. And for the next version of VLC media player you will normally see this nice feature. Lest enjoy a first screenshot!