A52 plugin

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To enable 5.1 output through a digital output:

  1. get a Dolby Digital encoder license; either
    • buy it from Dolby Labs, or
    • you already got one, when you bought a sound card that ships with such an encoder, or
    • you don't need one because software patents are not valid in your jurisdiction;
  2. install the ffmpeg package (which is not shipped with most distributions for legal reasons);
  3. recompile the alsa-plugins package;
  4. configure ALSA to use the a52 plugin (see doc/a52.txt).
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