[FFmpeg-user] difference between filter_complex and vf

Nicolas George nicolas.george at normalesup.org
Sun Jun 3 09:34:33 CEST 2012

Le quintidi 15 prairial, an CCXX, Atli Thorbjornsson a écrit :
> [out][1] amerge' out.flv
> [overlay @ 0xb16c5c0] Media type mismatch between the 'Parsed_overlay_3'
> filter output pad 0 and the 'Parsed_amerge_4' filter input pad 0
> Cannot create the link overlay:0 -> amerge:0

amerge is used to merge several audio channels together, and you are
plugging it to the output of the overlay filter, i.e. video. That does not
make sense. Try '[0:1][1:1] amerge'.


  Nicolas George
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