[FFmpeg-user] Cannot find a matching stream for unlabeled input pad 7 on filter Parsed_concat_2

Randy Johnson randy.johnson at hey.com
Fri Oct 30 00:35:53 EET 2020


The concat filter should have [# of segments] × ([# of audio streams] +
[# of video streams]), or n × (v + a) as specified to the filter. You
seem to have 2 segments (n=2) with 2 streams (v=1:a=1) each. 

Thank You Ted.  I believe I have it now.  Thanks for your patience.


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