[FFmpeg-user] No duration with pipe:1 as output

Robert Nagy ronag89 at gmail.com
Mon Feb 8 12:52:24 CET 2016

When I set "pipe:1" as the output the resulting file always ends up without
a duration in it's metadata/header (ffprobe doesn't find it).

I'm primarily interested in outputting webm, but I have the same issues
with nut and mkv.

Is there a way around this?

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