Then simply:
xhtml2pdf report.html
convert report.pdf report.jpg

Note: if you receive an error message in python “AttributeError: ‘NoneType’ object has no attribute ‘bands’” while trying to use the xhtml2pdf command, then you will need to apply this patch: http://hg.effbot.org/pil-2009-raclette/changeset/fb7ce579f5f9
In other words, edit Image.py and move line 1501 “self.load()” to 1497, just before the “if self.im.bands == 1:”

First try

1. First edit your aptitude sources list

alfersoft:~# nano /etc/apt/sources.list

2. Add the following repositories

deb http://www.debian-multimedia.org stable main
deb http://www.backports.org/debian lenny-backports main contrib non-free

3. Update

sudo apt-get update

4. Remove current ffmpeg (if installed)

sudo apt-get remove ffmpeg x264 libx264-dev

5. Install necessary packages for the build. Note that I’ve removed libvpx-dev from the original Ubuntu thread.

sudo apt-get install build-essential subversion git-core checkinstall yasm texi2html \
    libfaac-dev libmp3lame-dev libopencore-amrnb-dev libopencore-amrwb-dev libsdl1.2-dev \
    libtheora-dev libvorbis-dev libx11-dev libxfixes-dev libxvidcore-dev \
    zlib1g-dev

6. Build and install x264.

cd
git clone git://git.videolan.org/x264.git
cd x264
./configure
make
sudo checkinstall --pkgname=x264 --pkgversion "2:0.`grep X264_BUILD x264.h -m1 | \
    cut -d' ' -f3`.`git rev-list HEAD | wc -l`+git`git rev-list HEAD -n 1 | \
    head -c 7`" --backup=no --deldoc=yes --fstrans=no --default

7. Build and install ffmpeg. Note that I’ve removed the option –enable-libtheora and –enable-libvpx from the original Ubuntu thread.

cd
svn checkout svn://svn.ffmpeg.org/ffmpeg/trunk ffmpeg
cd ffmpeg
./configure --enable-gpl --enable-version3 --enable-nonfree --enable-postproc \
    --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb \
    --enable-libopencore-amrwb --enable-libvorbis \
    --enable-libx264 --enable-libxvid --enable-x11grab
make
sudo checkinstall --pkgname=ffmpeg --pkgversion "4:SVN-r`LANG=C svn info | \
    grep Revision | awk '{ print $NF }'`" --backup=no --deldoc=yes --fstrans=no \
    --default
hash x264 ffmpeg ffplay

Almost there

Ok, everything works perfectly until I try to convert a video and I get the following error:
“lame: output buffer too small”
After a bit of googling, I’ve found a patch in this post, with an interesting discussion regarding to whom should fix the problem (ffmpeg vs. lame). It is also suggested to downgrade the lame library, but I’ve tried that and didn’t worked for me, so in summary, let’s simply apply this ffmpeg patch and everything will be fine.

1. Go to the ffmpeg source directory and get the patch

cd
cd ffmpeg
wget --no-check-certificate https://roundup.ffmpeg.org/file831/ffmpeg-lame-flush.patch3

2. Apply the patch

patch < ffmpeg-lame-flush.patch3
## (when the file name is required enter: libavcodec/libmp3lame.c)

3. Build and install ffmpeg again

make
sudo checkinstall --pkgname=ffmpeg --pkgversion "4:SVN-r`LANG=C svn info | \
    grep Revision | awk '{ print $NF }'`" --backup=no --deldoc=yes --fstrans=no \
    --default

And now you're ready to go!

To create two bridged virtual serial ports use the following command:

socat -d -d pty,raw,echo=0 pty,raw,echo=0


The output will show you which are the virtual ports (or pseudo terminals) created, e.g.:

2010/02/19 16:16:33 socat[9662] N PTY is /dev/pts/3
2010/02/19 16:16:33 socat[9662] N PTY is /dev/pts/4
2010/02/19 16:16:33 socat[9662] N starting data transfer loop with FDs [3,3] and [5,5]


Note: if you are using Ubuntu and you do not have this command, try:

sudo apt-get install socat


Image source

Suppose that you want to calculate the space used by all the png files in current directory and all its subdirectories. From a terminal type:

find . -name '*.png' -exec du -ab {} \; | awk '{total+=$0}END{print total}'


Image source

The easiest way I found is dumping the binaries into text files using hexdump and then comparing them with your favourite program (diff, Meld, etc.). E.g.:

hexdump -C a.bin >a.txt
hexdump -C b.bin >b.txt
diff a.txt b.txt


Image source

From a terminal type:

sudo apt-get install xtightvncviewer


Image source