Sto cercando di unire 5 video. 2 di questi non hanno flussi audio.
Ottengo questo errore:
Stream specifier ':1' in filtergraph description [0:0] [0:1] [1:0] [1:1] [2:0] [2:1]
[3:0] [3:1] [4:0] [4:1] concat=n=5:v=1:a=1 [v] [a] matches no streams.
Uso questi argomenti
ffmpeg -y -i "C:\Users\alex\AppData\Local\Temp\tmp83A2.tmp.avi" -i "C:\Users\alex\AppDat\Local
\Temp\tmp83C2.tmp.avi" -i "C:\Users\alex\AppData\Local\Temp\tmp83F2.tmp.avi" -i "C:\Users
\alex\AppData\Local\Temp\tmp8412.tmp.avi" -i "C:\Users\alex\AppData\Local\Temp\tmp8442.tmp.avi" -filter_complex "[0:0] [0:1] [1:0] [1:1] [2:0] [2:1] [3:0] [3:1]` [4:0] [4:1] concat=n=5:v=1:a=1 [v] [a]" -map "[v]" -map "[a]" "C:\Users\alex\Documents`
\output.avi"
Grazie !