1. Output example
2. Linux shell script
Here is the Linux shell script I use to record my desktop
GAME="Enslaved Odyssey to the West"
WINE_VERSION="WINE 1.7.4"
LOGO="Logo.png"
TITLE="Linux Gaming"
DATE="$(LANG=C date '+%B %d,%Y')"
OUTPUTFILE=$(echo ${GAME} | sed -e "s: :_:g")
export LD_LIBRARY_PATH=/opt/ffmpeg/2.1/lib:/usr/local/lib:$LD_LIBRARY_PATH
export PATH=/opt/ffmpeg/2.1/bin/:$PATH
[ -d ${OUTPUTFILE} ] && { rm -rf ${OUTPUTFILE}; }
mkdir ${OUTPUTFILE}
cd ${OUTPUTFILE}
# Generate image for intro
# Source: http://kwlug.org/node/854
convert ../${LOGO} -gravity Center -font DejaVu-Sans-Book \
-pointsize 120 -fill gray -draw "text 1,121 '${GAME}'" \
-fill white -draw "text 0,120 '${GAME}'" \
-pointsize 90 -fill gray -draw "text 2,2 '${WINE_VERSION}'" \
-fill white -draw "text 0,0 '${WINE_VERSION}'" \
-pointsize 80 -fill gray -draw "text 1,-421 '${TITLE}'" \
-fill white -draw "text 0,-420 '${TITLE}'" \
-pointsize 40 -fill gray -draw "text 1,251 '${DATE}'" \
-fill white -draw "text 0,250 '${DATE}'" \
"${OUTPUTFILE}-intro.png"
#Concat audio and image for intro
# Duration: 6 seconds
ffmpeg -loop 1 -f image2 -i "${OUTPUTFILE}-intro.png" -i ../wayowayo.mp3 -ss 00:00:18 -t 00:00:06 -c:v libx264 \
-tune stillimage -c:a aac -strict experimental -b:a 192k ${OUTPUTFILE}-intro.mp4
# Removing/Adding the same file on Desktop helps me to know when recording screen starts
rm -f /home/david/Bureau/record.go
sleep 10s;
echo > /home/david/Bureau/record.go
# Screen: Record the first screen (Resolution: 2560x1440)
ffmpeg -f alsa -i pulse -y test.wav -f x11grab -show_region 1 -video_size 2560x1440 -framerate 24 -i :0.0 \
-threads 2 -q 1 -bt 8000000 -b 8500000 -an -vcodec libx264 -pre ultrafast -y test.mp4
# Screen: Concat Audio and Video
ffmpeg -i test.wav -i test.mp4 -acodec libfaac -qscale 0 -y ${OUTPUTFILE}-screen.mp4
# Merge the 2 videos:
# 1) video for intro
# 2) video for screen
ffmpeg -i ${OUTPUTFILE}-intro.mp4 -c copy -bsf h264_mp4toannexb -y temp0.ts
ffmpeg -i ${OUTPUTFILE}-screen.mp4 -c copy -bsf h264_mp4toannexb -y temp1.ts
ffmpeg -i "concat:temp0.ts|temp1.ts" -c copy -absf aac_adtstoasc -y ${OUTPUTFILE}-final.mp4
A couple days ago I set up a VM. This is Ubuntu 12.04.3 32 bits. I have full access to my NVIDIA card. Driver 331.17 was installed.So this is just a simple demo to show that proprietary NVIDIA driver works perfectly with this card hard-moded to GRID K2. High resolutions (2 screens: 2560x1440, 1920x1080) work too
