# ffmpeg -i camera.mkv      -ss 05:02 -t 300 -c:v libx264 -crf 18 -preset fast -c:a copy camera.cut.5min.mp4
# ffmpeg -i chaostalk01.mp4 -ss 01:54 -t 300 -c:v libx264 -crf 18 -preset fast -c:a copy chaostalk01.cut.5min.mp4
# end: 7364
ffmpeg \
	-i camera.cut.blur.mp4 \
	-i slides/slides.mp4 \
	-i audio/cut_room_no_aeh.wav \
	-filter_complex "
		nullsrc=size=3840x1080 [base];
		[0:v] setpts=PTS-STARTPTS,
		      boxblur=lr=16:enable='between(t,0,4)',
		      drawtext=fontfile=OpenSans-Regular.ttf:fontcolor=white:borderw=2:fontsize=64:x=100:y=0100:enable='between(t,0,4)':text='ChaOStalk #1',
		      drawtext=fontfile=OpenSans-Light.ttf:fontcolor=white:borderw=2:fontsize=64:x=100:y=0225:enable='between(t,0,4)':text='Datum\\:',
		      drawtext=fontfile=OpenSans-Light.ttf:fontcolor=white:borderw=2:fontsize=64:x=200:y=0300:enable='between(t,0,4)':text='27. November 2015',
		      drawtext=fontfile=OpenSans-Light.ttf:fontcolor=white:borderw=2:fontsize=64:x=100:y=0375:enable='between(t,0,4)':text='Thema\\:',
		      drawtext=fontfile=OpenSans-Light.ttf:fontcolor=white:borderw=2:fontsize=64:x=200:y=0450:enable='between(t,0,4)':text='Politische Lösungen für technische Probleme',
		      drawtext=fontfile=OpenSans-Light.ttf:fontcolor=white:borderw=2:fontsize=64:x=100:y=0525:enable='between(t,0,4)':text='Sprecher\\:',
		      drawtext=fontfile=OpenSans-Light.ttf:fontcolor=white:borderw=2:fontsize=64:x=200:y=0600:enable='between(t,0,4)':text='Linus Neumann',
		      drawtext=fontfile=OpenSans-Light.ttf:fontcolor=white:borderw=2:fontsize=64:x=100:y=0675:enable='between(t,0,4)':text='Veranstalter\\:',
		      drawtext=fontfile=OpenSans-Light.ttf:fontcolor=white:borderw=2:fontsize=64:x=200:y=0750:enable='between(t,0,4)':text='Chaostreff Osnabrück,',
		      drawtext=fontfile=OpenSans-Light.ttf:fontcolor=white:borderw=2:fontsize=64:x=200:y=0825:enable='between(t,0,4)':text='Fachschaft Mathematik/Informatik, Universität Osnabrück',
		      drawtext=fontfile=OpenSans-Light.ttf:fontcolor=white:borderw=2:fontsize=64:x=200:y=0900:enable='between(t,0,4)':text='AStA, Universität Osnabrück' [left];
		[1:v] setpts=PTS-STARTPTS [right];
		[base][left] overlay=shortest=1 [tmp1];
		[tmp1][right] overlay=shortest=1:x=1920 [full];
		[full] split [full1][full2];
		[full1] trim=0:4688, fade=t=out:st=4687.5:d=0.5 [v1];
		[full2] trim=4802:7364, setpts=PTS-STARTPTS, fade=t=in:st=0:d=0.5 [v2];
		[2:a] atrim=0:4688, afade=t=out:st=4687:d=1 [a1];
		[2:a] atrim=4802:7364, asetpts=PTS-STARTPTS, afade=t=in:st=0:d=1 [a2];
		[v1][v2] concat=n=2 [v];
		[a1][a2] concat=n=2:v=0:a=1 [a]
		" \
	-map '[v]' -map '[a]' \
	-c:v libvpx-vp9 -crf 35 -b:v 0 -tile-columns 6 -frame-parallel 1 -auto-alt-ref 1 -lag-in-frames 25 -threads 4 \
	-c:a libopus -application audio -vbr 2 \
	media.ccc.de/compose.sidebyside.3840x1080.webm