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doc/filters: add more advanced and useful afir example

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Paul B Mahol 2022-12-11 20:50:33 +01:00
parent 8556006984
commit c3e20f78b0
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doc/filters.texi
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@ -1703,6 +1703,13 @@ Apply reverb to stream using mono IR file as second input, complete command usin
@example
ffmpeg -i input.wav -i middle_tunnel_1way_mono.wav -lavfi afir output.wav
@end example
@item
Apply true stereo processing given input stereo stream, and two stereo impulse responses for left and right channel,
the impulse response files are files with names l_ir.wav and r_ir.wav:
@example
"pan=4C|c0=FL|c1=FL|c2=FR|c3=FR[a];amovie=l_ir.wav[LIR];amovie=r_ir.wav[RIR];[LIR][RIR]amerge[ir];[a][ir]afir=irfmt=input:gtype=gn:irgain=-5dB,pan=stereo|FL<c0+c2|FR<c1+c3"
@end example
@end itemize
@anchor{aformat}