rockbox/metadata
Audio file metadata / tag parsing.
Types
Parsed metadata for one audio file (the common fields).
pub type Metadata {
Metadata(
codec: String,
codec_id: Int,
title: String,
artist: String,
album: String,
albumartist: String,
composer: String,
genre: String,
year: option.Option(Int),
track_number: option.Option(Int),
disc_number: option.Option(Int),
duration_ms: Int,
bitrate: Int,
sample_rate: Int,
filesize: Int,
samples: Int,
vbr: Bool,
replaygain: ReplayGain,
)
}Constructors
-
Metadata( codec: String, codec_id: Int, title: String, artist: String, album: String, albumartist: String, composer: String, genre: String, year: option.Option(Int), track_number: option.Option(Int), disc_number: option.Option(Int), duration_ms: Int, bitrate: Int, sample_rate: Int, filesize: Int, samples: Int, vbr: Bool, replaygain: ReplayGain, )
ReplayGain values parsed from the file’s tags. The *_db / *_peak
fields are user-friendly; the raw_* fields keep Rockbox’s native Q7.24
encoding — feed them straight into dsp.set_replaygain_gains_raw.
pub type ReplayGain {
ReplayGain(
track_gain_db: option.Option(Float),
album_gain_db: option.Option(Float),
track_peak: option.Option(Float),
album_peak: option.Option(Float),
raw_track_gain: Int,
raw_album_gain: Int,
raw_track_peak: Int,
raw_album_peak: Int,
)
}Constructors
-
ReplayGain( track_gain_db: option.Option(Float), album_gain_db: option.Option(Float), track_peak: option.Option(Float), album_peak: option.Option(Float), raw_track_gain: Int, raw_album_gain: Int, raw_track_peak: Int, raw_album_peak: Int, )
Values
pub fn probe(filename: String) -> option.Option(String)Guess the codec label (e.g. "FLAC") from a filename’s extension without
opening the file. None for an unknown extension.