id,summary,reporter,owner,description,type,status,priority,component,version,resolution,keywords,cc,blockedby,blocking,reproduced,analyzed
10248,large filtergraph yields abysmal performance,mldwrp,,"This looks like either a bug in design or some configuration mistake: a large filtergraph (I'm stiching small pieces of several streams together, the filtergapth is > 200KB) makes the process run for like 60 hours (with the [correct] result just over 200MB).

You're welcome to examine the offending filtergraph here: https://gist.githubusercontent.com/costa/14aff290d6b30edf131500fc6823147b/raw/37520d452df8ded3649899adf90d0204f8a9f75d/ffmpeg-filtergraph-script

I'm willing to try things if you have any clue, so, any help is greatly appreciated.

p.s. if you're wondering how this filtergraph is generated, see the Ruby FFmpeg-micro-engine gem: https://rubygems.org/gems/ffmprb",enhancement,closed,important,ffmpeg,4.3.5,needs_more_info,"performance, filter_complex, filters",,,,0,0