decided on id3
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notes.md
12
notes.md
@ -95,3 +95,15 @@ These destinctions are sorted from top to bottom.
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[Wikipedia](https://en.wikipedia.org/wiki/Audio_codec)
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The audio codec is simply software/hardware, to convert audio from an [audio coding format](#audio-coding-format) to playable audio and vice versa.
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# ID3
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[ID3](https://en.wikipedia.org/wiki/ID3) is a metadata container format for audio. I am going for [ID3v2](https://en.wikipedia.org/wiki/ID3#ID3v2)
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An Application can define its own types of frames.
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There are standard frames for containing cover art, BPM, copyright and license, lyrics, and arbitrary text and URL data, as well as other things.
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Version 2.4 of the specification prescribes that all text fields (the fields that start with a T, except for TXXX) can contain multiple values separated by a null character. The null character varies by [character encoding](https://en.wikipedia.org/wiki/Character_encoding).
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[id3 fields docs](https://docs.puddletag.net/source/id3.html)
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@ -77,3 +77,11 @@ CREATE TABLE AlbumArtist
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FOREIGN KEY(album_id) REFERENCES Album(id),
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FOREIGN KEY(artist_id) REFERENCES Artist(id)
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);
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CREATE TABLE id3
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(
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frame TEXT, -- 4 capital leters like TXXX
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value TEXT,
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song_id BIGINT,
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FOREIGN KEY(song_id) REFERENCES Song(id)
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);
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