[FORMAT]
filename=2012-11-13/xrandr.mp4
nb_streams=2
format_name=mov,mp4,m4a,3gp,3g2,mj2
format_long_name=QuickTime / MOV
start_time=0.000000
duration=252.810000
size=6884270
bit_rate=217848
TAG:major_brand=isom
TAG:minor_version=512
TAG:compatible_brands=isomiso2avc1mp41
TAG:encoder=Lavf54.29.104
[/FORMAT]
[FORMAT]
filename=2012-11-13/xrandr.webm
nb_streams=2
format_name=matroska,webm
format_long_name=Matroska / WebM
start_time=0.000000
duration=253.775000
size=16256108
bit_rate=512457
[/FORMAT]

ffmpeg logfile

r2d2.sh source