doc/user.rst: Clarify how MPD reads metadata

The writing and reading of metadata involves lots of different programs
and libraries. Therefore it is prudent to point out how exactly MPD
receives metadata. Ideally this helps to point users to the right place
if their tags are not picked up correctly.
This commit is contained in:
Wolfgang Müller 2022-02-13 15:22:11 +01:00 committed by Max Kellermann
parent 108ce95b7c
commit 59da778009
1 changed files with 9 additions and 0 deletions

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@ -1103,6 +1103,15 @@ See :ref:`tags` for a list of supported tags.
The :ref:`metadata_to_use <metadata_to_use>` setting can be used to
enable or disable certain tags.
Note that :program:`MPD` may not necessarily read metadata itself,
instead relying on data reported by the decoder that was used to read
a file. For example, this is the case for the FFmpeg decoder: both
:program:`MPD` and FFmpeg need to support a given metadata format in
order for metadata to be picked up correctly.
Only if a decoder does not have metadata support will :program:`MPD`
attempt to parse a song's metadata itself.
The queue
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