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mirror of https://github.com/wader/fq.git synced 2024-12-18 02:41:44 +03:00
fq/format/id3/id3v11.go
2021-09-12 13:08:50 +02:00

36 lines
749 B
Go

package id3
import (
"github.com/wader/fq/format"
"github.com/wader/fq/format/registry"
"github.com/wader/fq/pkg/decode"
)
func init() {
registry.MustRegister(&decode.Format{
Name: format.ID3V11,
Description: "ID3v1.1 metadata",
DecodeFn: id3v11Decode,
})
}
func id3v11Decode(d *decode.D, in interface{}) interface{} {
d.ValidateAtLeastBitsLeft(128 * 8)
d.FieldValidateUTF8("magic", "TAG+")
d.FieldUTF8("title", 60)
d.FieldUTF8("artist", 60)
d.FieldUTF8("album", 60)
d.FieldStringMapFn("speed", map[uint64]string{
0: "unset",
1: "slow",
2: "medium",
3: "fast",
4: "hardcore",
}, "Unknown", d.U8, decode.NumberDecimal)
d.FieldUTF8("genre", 30)
d.FieldUTF8("start", 6)
d.FieldUTF8("stop", 6)
return nil
}