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Glass Wizzard
Asked: 2018-11-19 04:52:33 +0800 CST

Where can I get "libavformat-ffmpeg56" from?

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It is a dependency for OpenBoard, could someone tell me where to get it please since it is not something that Ubuntu can obtain by itself (I think it's an old version).

software-installation dependencies

2 Answers

  1. When the OS is later than Ubuntu 16.04, please add (temporarily) some "xenial" lines to /etc/apt/sources.list :

    sudo gedit /etc/apt/sources.list

    Lines added, my example :

    deb http://dk.archive.ubuntu.com/ubuntu/ xenial main
deb http://dk.archive.ubuntu.com/ubuntu/ xenial universe
deb http://dk.archive.ubuntu.com/ubuntu/ xenial-updates universe

    Next : sudo apt update

    ... And you can then install the package: sudo apt install libavformat-ffmpeg56

    • The install test was done OK with Ubuntu 18.04 - amd64.
    • 6

  2. Install libavformat-ffmpeg56

    sudo apt-get install libavformat-ffmpeg56

    have been upgraded in Ubuntu 16.10, 17.04, 17.10, 18.04 and 18.10 to libavformat57.

    sudo apt-get install libavformat57
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