Improve audio media type parsing

gbif / parsers

Various GBIF parsers for dates, countries, language, taxon ranks, etc

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Improve audio media type parsing #14

Closed MattBlissett closed 5 years ago

MattBlissett commented 5 years ago

https://www.gbif.org/dataset/f11db245-3f9f-4fc6-a0cc-12b4124d081b says audio/mpeg3, which we should convert to audio/mpeg.
https://www.gbif.org/dataset/cb6e66f1-3056-404d-a341-bb856762c57c says audio/mpeg and has identifiers ending m4a, and is really audio/mp4
https://www.gbif.org/dataset/b1047888-ae52-4179-9dd5-5448ea342a24 and https://www.gbif.org/dataset/b7ec1bf8-819b-11e2-bad2-00145eb45e9a say audio/mp3, which should be audio/mpeg

This will help https://github.com/gbif/portal-feedback/issues/1630

MattBlissett commented 5 years ago

References: https://wiki.whatwg.org/wiki/Video_type_parameters https://www.iana.org/assignments/media-types/media-types.xhtml#audio

MortenHofft commented 5 years ago

row format count works example
1 audio/x-flac  2       NOT 1882615644
2   audio/ogg   14      OK 1271693629
3   audio/x-wav 68      OK 1271693192
4   audio/mpeg  30883   OK 1571572483
5   audio/wav   18      OK 1317313403
6   audio/mp3   16416   OK 1421199821
7   audio/mp4   42      OK 1882578898
8   audio/x-aiff    22  NOT 1271780103
9   audio/mpeg3 55418   NOT 1058481761 (but works if treated like mp3)

notice line 9: 55K audio files with format audio/mpeg3. the html5 audio tag won't play that. But for the examples i tried (e.g. 1058481761) the file ending is mp3 and works if format set as such.