From: Atte:
Hi
Trying my luck again with recordmydesktop. Found that the following
eventually starts record my desktop:
https://dl.dropboxusercontent.com/u/4343030/recordmydesktop
However it seems to only record in mono. How do I capture two audio
channels?
Even better: is there an alternative out there that actually works?
I have been using ffmpeg for my recordings.
It's a bit tricky to get sound from jack though, but if you start pulseaudio using
the jack sinks, you get the sound if you connect the output
of what you want to record to the pulseaudio jack input. I do
that connection manually.
So:
1. Start pulseaudio (make sure it is configured to use jack):
$ pulseaudio
2. Connect the output jack ports of what you want to record into pulseaudio.
3. Run something like this:
$ffmpeg -f alsa -ac 2 -i pulse -f x11grab -r 30 -s 720x646 -i :0.0 -acodec pcm_s16le -vcodec libx264 -preset ultrafast -crf 0 -y output.mkv
(this works for me)
Here are a couple of links with info I used to configure ffmpeg:
And here is my version of ffmpeg, which works:
ffmpeg version 0.10.7 Copyright (c) 2000-2013 the FFmpeg developers
The ffmpeg version might be relevant since I think there are two different versions of ffmpeg,
one hijacked version made by the libav folks, and one real version.
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