Essayer Kazam + gtk-recordmydesktop

Screencast audio/video
(ffmpeg for video, vlc for audio, jack and pulse audio to connect Pure Data to vlc)

ffmpeg

• sudo add-apt-repository ppa:jon-severinsson/ffmpeg
• sudo apt-get update
• sudo apt-get install ffmpeg

qjackctl, jack, pulse

• sudo apt-get install qjackctl pulseaudio-module-jack jack-rack libnotify-bin ladspa-sdk plugins-swh
• pacmd suspend true

Dans QJackCtl : Script après le démarrage :

• pacmd load-module module-jack-source channels=2; pacmd load-module module-jack-sink channels=2;

#!/bin/bash
# Script to screencast audio and video (ffmpeg for video, vlc for audio, jack and pulse audio to connect Pure Data to vlc)
 
DATE=`date +%Y%m%d`
TIME=`date +%Hh%M`
 
AUDIO_FILE="/media/data/videos/record/out-$DATE-$TIME.wav"
VIDEO_FILE="/media/data/videos/record/out-$DATE-$TIME.avi"
 
# Start screencast
cp ~/.pdextended_malinette ~/.pdextended
qjackctl -a ~/Softs/jack-patchbay.xml &
sleep 3
pd-extended -jack -open /media/data/code/malinette/malinette/MALINETTE-en.pd &
sleep 3
ffmpeg -f x11grab -r 25 -s 946x768 -i :0.0+0,0 -vcodec huffyuv -y $VIDEO_FILE &
cvlc jack://channels=2:ports=.* --jack-input-auto-connect --sout="#transcode{acodec=s16l,channels=2,ab=128,samplerate=44100}:standard{access=file,mux=wav,dst="$AUDIO_FILE"}"
 
# Kill
killall qjackctl
killall pd-extended
killall ffmpeg
killall cvlc
 
#jack_connect pd_extended_0:output0 "PulseAudio JACK Source:front-left"
#jack_connect pd_extended_0:output1 "PulseAudio JACK Source:front-right"
#--sout "#transcode{acodec=mp3,ab=128,channels=2,samplerate=44100}:duplicate{dst=std{access=file,mux=mp4,dst=$AUDIO_FILE}}}"

ffmpeg -f alsa -ac 2 -i pulse -f x11grab -r 30 -s 948x738 -i :0.0+0,24 -acodec pcm_s16le -vcodec libx264  -preset ultrafast -threads 0 -y test-pulse.mkv

cvlc --jack-input-auto-connect screen:// --screen-fps=25 --input-slave pulse://jack_in --sout "#transcode{venc=x264,quality:100,scale=1,fps=30,acodec=mp3,ab=128,channels=2, samplerate=44100}:duplicate{dst=std{access=file,mux=mp4,dst=nowardev.mp4}}}"

recordmydesktop -x 300 -y 300 -width 480 -height 272 -fps 15 --use-jack system:capture_1 system:capture_2 -o output.ogv

avconv -f x11grab -show_region 1 -video_size hd720 -framerate 24 -i :0.0 -threads 2 -q 1 test.mkv

mplayer -tv driver=v4l2:gain=1:width=640:height=480:device=/dev/video0:fps=10:outfmt=rgb16 tv://

• http://wiki.linuxaudio.org/wiki/screencasttutorial
• http://puredata.info/docs/JackRoutingMultichannelAndBrowserAudio/
• http://askubuntu.com/questions/4428/how-to-create-a-screencast
• http://askubuntu.com/questions/107726/how-to-create-animated-gif-images-of-a-screencast