[FFmpeg-user] Trying to understand ffmpeg cpu usage in this case of capturing rtsp streams

Jan Ceuleers jan.ceuleers at gmail.com
Sat Nov 9 21:23:57 EET 2024


On 09/11/2024 00:46, Jim Ruxton wrote:
> Thanks so much for the help. Not sure why but when I try to upgrade ffmpeg
> using the ppa as you suggested I get:
>
> ffmpeg is already the newest version (7:4.4.2-0ubuntu0.22.04.1+esm5).
>
> however if I check with "ffmpeg -version " I get :
>
> ffmpeg version 4.4.2-0ubuntu0.22.04.1+esm5 Copyright (c) 2000-2021 the
> FFmpeg developers
> built with gcc 11 (Ubuntu 11.4.0-1ubuntu1~22.04)
>
> There is no 7 showing up in the version number, though  maybe I already
> have the newest version installed?

The "7:" isn't part of the upstream (i.e. ffmpeg) version number, nor is
the "-0ubuntu..." suffix.

There is an explanation of the (quite complex) package version naming
conventions at [1], but unfortunately they don't explain the 7: prefix
(not very clearly, not to me anyway).

So as others have commented, you are indeed running ffmpeg 4.4.2, which
is also what ffmpeg's -version option confirms.

[1]:
https://github.com/canonical/ubuntu-maintainers-handbook/blob/main/VersionStrings.md

HTH, Jan



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