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FAAD2 is in non-free repositories; for open source, it presents a problem with distribution outside of freeworld. Neither Opus nor mp3 have this problem. So to

• CharlesW 3y ago
  > FAAD2 is in non-free repositories; for open source, it presents a problem with distribution outside of freeworld. I may be misspeaking about FAAD2, but I've never run into an open-source player (like VLC) or library (like ffmpeg) which hasn't supported at least HE-AAC decode for a decade or more. If that's wrong, I'd love to be corrected in the most detailed way possible.
  • vetinari 3y ago
    FFmpeg is exactly the kind of application, that in non-pruned configuration (i.e. with codecs like AAC) distributions cannot distribute binaries legally in some countries. E.g. for Fedora, it is in rpmfusion repository and not in the distribution proper. Other distributions have similar arrangement for license-os-ok-but-patents-are-problem situation. These servers are outside US (or other countries that recognize software patents), and for the US users, the issue of obtaining the license is up to them. The situation is so bad, that Fedora stopped shipping support for hardware acceleration of patented codecs (i.e. not complete codecs, but support to use the implementation in hardware, for example in your GPU), because they could be sued for contributory infringement. Also note, that binaries for VLC or ffmpeg for Windows or Mac are similarly distributed from non-US servers, so basically the same situation as rpmfusion.