[input:loudness] width=640 height=480 command= ffmpeg -y -v warning -i {url} -filter_complex " [0:a] ebur128=video=1:meter=10:reference=-18:size={w}x{h} [iv][a], [iv] fps=25 [v] " -map '[v]' -map '[a]' -c:v rawvideo -c:a pcm_s16le -pix_fmt yuv420p -r 25 -f matroska pipe: [input:video] width=640 height=360 command= ffmpeg -y -v warning -i {url} -map '0:v' -map '0:a' -vf scale={w}:{h} -c:v rawvideo -c:a pcm_s16le -pix_fmt yuv420p -r 25 -aspect 16:9 -f matroska pipe: [output] grid=3x3 # uncomment to encode & push to rtmp instead of displaying it command= ffmpeg -y -v warning -i pipe: -threads:0 0 -vf "scale=1920:-1" -c:v libx264 -maxrate:v:0 3000k -bufsize:v:0 8192k -crf:0 21 -pix_fmt:0 yuv420p -profile:v:0 main -g:v:0 25 -preset:v:0 veryfast -map 0:v -strict 2 -c:a aac -b:a 96k -ar 44100 -ac:a:2 2 -map 0:a -y -f flv rtmp://live.ber.c3voc.de/stream/loudness [sources] curie_native=loudness:http://live.fem.c3voc.de:8000/s1_native.mp3 curie_translated=loudness:http://live.fem.c3voc.de:8000/s1_translated.mp3 curie=video:http://live.fem.c3voc.de:8000/s1_native_sd.webm meitner_native=loudness:http://live.fem.c3voc.de:8000/s2_native.mp3 meitner_translated=loudness:http://live.fem.c3voc.de:8000/s2_translated.mp3 meitner=video:http://live.fem.c3voc.de:8000/s2_native_sd.webm thm_native=loudness:http://live.fem.c3voc.de:8000/s5_native.mp3 thm_translated=loudness:http://live.fem.c3voc.de:8000/s5_translated.mp3 thm=video:http://live.fem.c3voc.de:8000/s5_native_sd.webm