$ logstalgia --output-ppm-stream - -s 10 -f --start-position 0.01 --stop-position 0.2 severity_v2_access.log.filter-118.160.72  --output-framerate 30 |  ffmpeg -y -b 256K -r 30 -f image2pipe -vcodec ppm -i - -vcodec libx264 coscup2010-register_0.01-0.2_speed10_45min-filter_118.160.72.mp4