I have a "Little" script for screencasting - I'll skip to the good part.

In my avconv command I record 3 different sources simultaneously to 3 different tracks. The only way I know of getting audio from pulseaudio is like so:

-f alsa -ac 2 -i pulse

Unfortunately, this results in 3 identical entries in the "Recording" tab of pavucontrol. Looking at the man page there should be an option to record like so:

-f pulse -ac 2 -i <devicename> -name <trackname>

Unfortunately, it requires installation of libpulse-simple which I can't find on my system or in my repository.

Is there a way to have a name like option using -f alsa?

If not, how do I get libpulse-simple installed on (x)ubuntu 12.04?

Edit: It looks like the ubuntu version is compiled wrong (yet again)

The question is now "How do I compile this without breaking my system"

I would like the presets available in /usr/share/avconv to stay available and be able to revert with the package manager (So no dirty hacks like dumping it in /opt)

Edit2: I've compiled avconv with libpulse enabled, but now x11grab is missing! I can't find a list of ./configure options but I want to enable everything I possibly can so I don't have to deal with missing feature after feature. Anyone know where to find such a list? How about whatever args they use for the official ubuntu packages?

  • I'm not on Ubuntu so I can't help much, but is that in libpulse-dev maybe?
    – slhck
    Commented Mar 25, 2013 at 12:32
  • Nope, installing it still gives me Unknown input format: 'pulse'
    – J V
    Commented Mar 25, 2013 at 12:48
  • You'd have to recompile Libav/FFmpeg in order to have it recognize that with --enable-libpulse I guess.
    – slhck
    Commented Mar 25, 2013 at 12:55
  • Thanks, I'll have to see what is needed to replace my defaults without breaking anything.
    – J V
    Commented Mar 25, 2013 at 13:00

1 Answer 1


Looks like it has compiled properly like so:

sudo ./configure --prefix="/home/j/projects/avconv-source/build" --enable-gpl --enable-libmp3lame --enable-libpulse --enable-libx264 --enable-x11grab

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