Am 22.01.2023 um 23:52 schrieb Reino Wijnsma:
Hello Michael,
On 2023-01-22T18:50:20+0100, Michael Koch <astroelectro...@t-online.de> wrote:
This command line works with asendcmd and astreamselect:
ffmpeg -i audio1.wav -i audio2.wav -lavfi asendcmd="4 astreamselect map
1",asendcmd="6 astreamselect map 0",astreamselect=map=0 -y out.wav
However with amix filter I have no idea what's the syntax for the string inside
the string. It doesn't work.
ffmpeg -i audio1.wav -i audio2.wav -lavfi asendcmd="4 amix weights '0
1'",amix=weights='1 0' -y out.wav
You've got your quotes all wrong. Always surround the complete filter-chain
with double quotes and use single quotes for the individual filters.
ffmpeg -i audio1.wav -i audio2.wav -lavfi "asendcmd='4 astreamselect map
1',asendcmd='6 astreamselect map 0',astreamselect=map=0" -y out.wav
ffmpeg -i audio1.wav -i audio2.wav -lavfi "asendcmd='4 amix weights '\\\'0
1\\\',amix=weights='1 0'" -y out.wav
Thank you!
Michael
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