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- 1. Roadmap
- 2. Practical Usage Tips
- 3. Packages
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4. Troubleshooting
- 4.1. I'm getting
cannot open audio device default (No such file or directory)
- 4.2. I'm getting
cannot open audio device default (Invalid argument)
- 4.3. I'm getting
cannot open audio device pulse (No such file or directory)
when using--audio-input pulse
- 4.4. A huge ammount of
Non-monotonous DTS in output stream 0:1
messages are displayed when using--audio-input pulse
- 4.1. I'm getting
- v1.5.0 - many new features and additions
- v2.0.0 - graphical user interface
Is there a better way to use screencast other than manually typing the commands at a terminal window? See here.
Packages are availabe for:
- Arch Linux
- Debian
- Ubuntu/Mint
- openSUSE
- Fedora
- Red Hat Enterprise Linux (RHEL)
- CentOS
- Scientific Linux
- Mageia
See here for details.
You may need to properly configure ALSA through ~/.asoundrc
. Firstly, find the ALSA device name of your desired input device by running $ asound -l
. Then create the file .asoundrc
in your home directory with the following contents (reboot after):
pcm.!default {
type hw
card <device name>
}
ctl.!default {
type hw
card <device name>
}
Your ~/.asoundrc
or (/etc/asound.conf
) file is not properly configured. Probably you have typed the wrong name of your ALSA input device on the card <device name>
lines. To find the available ALSA input device names on your system you can run $ asound -l
. To avoid confusion, don't look for names by using $ asound -L
. The device name usually is a single word, and should not contain CARD=
prefix or ,DEV=N
suffix.
4.3 I'm getting cannot open audio device pulse (No such file or directory)
when using --audio-input pulse
First of all, make sure that PulseAudio is properly installed and configured. If so, maybe you need to properly configure ALSA through ~/.asoundrc
. For this, find the PulseAudio source name of your desired input device by running $ pactl list sources | grep 'Name:'
. Then create the file .asoundrc
in your home directory with the following contents (reboot after):
pcm.!default {
type pulse
}
ctl.!default {
type pulse
}
pcm.pulse {
type pulse
device <source name>
}
ctl.pulse {
type pulse
device <source name>
}
4.4 A huge ammount of Non-monotonous DTS in output stream 0:1
messages are displayed when using --audio-input pulse
Probably, your default PulseAudio recording source is not correctly configured. You can configure it through pavucontrol
. Open pavucontrol
, choose the Recording tab, start any application that records from PulseAudio (it can be screencast by using $ screencast -u -i pulse
) and then choose your default PulseAudio source by clicking on the button that appears at the right (at the line ALSA ffmpeg-plugin [ffmpeg]: ALSA Capture from).