feat: store duration as float, to cater for milliseconds

db/migration/20200220143731_change_duration_to_float.go

@@ -0,0 +1,129 @@
+package migration
+
+import (
+	"database/sql"
+	"github.com/deluan/navidrome/log"
+	"github.com/pressly/goose"
+)
+
+func init() {
+	goose.AddMigration(Up20200220143731, Down20200220143731)
+}
+
+func Up20200220143731(tx *sql.Tx) error {
+	log.Warn("This version will force the next scan to be a requires a full rescan!")
+	_, err := tx.Exec(`
+create table media_file_dg_tmp
+(
+	id varchar(255) not null
+		primary key,
+	path varchar(255) default '' not null,
+	title varchar(255) default '' not null,
+	album varchar(255) default '' not null,
+	artist varchar(255) default '' not null,
+	artist_id varchar(255) default '' not null,
+	album_artist varchar(255) default '' not null,
+	album_id varchar(255) default '' not null,
+	has_cover_art bool default FALSE not null,
+	track_number integer default 0 not null,
+	disc_number integer default 0 not null,
+	year integer default 0 not null,
+	size integer default 0 not null,
+	suffix varchar(255) default '' not null,
+	duration real default 0 not null,
+	bit_rate integer default 0 not null,
+	genre varchar(255) default '' not null,
+	compilation bool default FALSE not null,
+	created_at datetime,
+	updated_at datetime
+);
+
+insert into media_file_dg_tmp(id, path, title, album, artist, artist_id, album_artist, album_id, has_cover_art, track_number, disc_number, year, size, suffix, duration, bit_rate, genre, compilation, created_at, updated_at) select id, path, title, album, artist, artist_id, album_artist, album_id, has_cover_art, track_number, disc_number, year, size, suffix, duration, bit_rate, genre, compilation, created_at, updated_at from media_file;
+
+drop table media_file;
+
+alter table media_file_dg_tmp rename to media_file;
+
+create index media_file_album_id
+	on media_file (album_id);
+
+create index media_file_genre
+	on media_file (genre);
+
+create index media_file_path
+	on media_file (path);
+
+create index media_file_title
+	on media_file (title);
+
+create table album_dg_tmp
+(
+	id varchar(255) not null
+		primary key,
+	name varchar(255) default '' not null,
+	artist_id varchar(255) default '' not null,
+	cover_art_path varchar(255) default '' not null,
+	cover_art_id varchar(255) default '' not null,
+	artist varchar(255) default '' not null,
+	album_artist varchar(255) default '' not null,
+	year integer default 0 not null,
+	compilation bool default FALSE not null,
+	song_count integer default 0 not null,
+	duration real default 0 not null,
+	genre varchar(255) default '' not null,
+	created_at datetime,
+	updated_at datetime
+);
+
+insert into album_dg_tmp(id, name, artist_id, cover_art_path, cover_art_id, artist, album_artist, year, compilation, song_count, duration, genre, created_at, updated_at) select id, name, artist_id, cover_art_path, cover_art_id, artist, album_artist, year, compilation, song_count, duration, genre, created_at, updated_at from album;
+
+drop table album;
+
+alter table album_dg_tmp rename to album;
+
+create index album_artist
+	on album (artist);
+
+create index album_artist_id
+	on album (artist_id);
+
+create index album_genre
+	on album (genre);
+
+create index album_name
+	on album (name);
+
+create index album_year
+	on album (year);
+
+create table playlist_dg_tmp
+(
+	id varchar(255) not null
+		primary key,
+	name varchar(255) default '' not null,
+	comment varchar(255) default '' not null,
+	duration real default 0 not null,
+	owner varchar(255) default '' not null,
+	public bool default FALSE not null,
+	tracks text not null
+);
+
+insert into playlist_dg_tmp(id, name, comment, duration, owner, public, tracks) select id, name, comment, duration, owner, public, tracks from playlist;
+
+drop table playlist;
+
+alter table playlist_dg_tmp rename to playlist;
+
+create index playlist_name
+	on playlist (name);
+
+-- Force a full rescan
+delete from property where id like 'LastScan%';
+update media_file set updated_at = '0001-01-01';
+`)
+	return err
+}
+
+func Down20200220143731(tx *sql.Tx) error {
+	return nil
+}

engine/browser.go

@@ -159,7 +159,7 @@ func (b *browser) buildAlbumDir(al *model.Album, tracks model.MediaFiles) *Direc
 		Artist:     al.Artist,
 		ArtistId:   al.ArtistID,
 		SongCount:  al.SongCount,
-		Duration:   al.Duration,
+		Duration:   int(al.Duration),
 		Created:    al.CreatedAt,
 		Year:       al.Year,
 		Genre:      al.Genre,

engine/common.go

@@ -69,7 +69,7 @@ func FromAlbum(al *model.Album) Entry {
 	e.Created = al.CreatedAt
 	e.AlbumId = al.ID
 	e.ArtistId = al.ArtistID
-	e.Duration = al.Duration
+	e.Duration = int(al.Duration)
 	e.SongCount = al.SongCount
 	e.Starred = al.StarredAt
 	e.PlayCount = int32(al.PlayCount)
@@ -88,7 +88,7 @@ func FromMediaFile(mf *model.MediaFile) Entry {
 	e.Artist = mf.Artist
 	e.Genre = mf.Genre
 	e.Track = mf.TrackNumber
-	e.Duration = mf.Duration
+	e.Duration = int(mf.Duration)
 	e.Size = mf.Size
 	e.Suffix = mf.Suffix
 	e.BitRate = mf.BitRate

engine/media_streamer.go

@@ -179,7 +179,7 @@ type streamHandlerFileInfo struct {
 }
 
 func (f *streamHandlerFileInfo) Name() string       { return f.mf.Title }
-func (f *streamHandlerFileInfo) Size() int64        { return int64((f.mf.Duration)*f.bitRate*1000) / 8 }
+func (f *streamHandlerFileInfo) Size() int64        { return int64(f.mf.Duration*float32(f.bitRate*1000)) / 8 }
 func (f *streamHandlerFileInfo) Mode() os.FileMode  { return os.FileMode(0777) }
 func (f *streamHandlerFileInfo) ModTime() time.Time { return f.mf.UpdatedAt }
 func (f *streamHandlerFileInfo) IsDir() bool        { return false }

engine/playlists.go

@@ -127,7 +127,7 @@ func (p *playlists) Get(ctx context.Context, id string) (*PlaylistInfo, error) {
 		Id:        pl.ID,
 		Name:      pl.Name,
 		SongCount: len(pl.Tracks),
-		Duration:  pl.Duration,
+		Duration:  int(pl.Duration),
 		Public:    pl.Public,
 		Owner:     pl.Owner,
 		Comment:   pl.Comment,

model/album.go

@@ -13,7 +13,7 @@ type Album struct {
 	Year         int       `json:"year"`
 	Compilation  bool      `json:"compilation"`
 	SongCount    int       `json:"songCount"`
-	Duration     int       `json:"duration"`
+	Duration     float32   `json:"duration"`
 	Genre        string    `json:"genre"`
 	CreatedAt    time.Time `json:"createdAt"`
 	UpdatedAt    time.Time `json:"updatedAt"`

model/mediafile.go

@@ -20,7 +20,7 @@ type MediaFile struct {
 	Year        int       `json:"year"`
 	Size        int       `json:"size"`
 	Suffix      string    `json:"suffix"`
-	Duration    int       `json:"duration"`
+	Duration    float32   `json:"duration"`
 	BitRate     int       `json:"bitRate"`
 	Genre       string    `json:"genre"`
 	Compilation bool      `json:"compilation"`

model/playlist.go

@@ -4,7 +4,7 @@ type Playlist struct {
 	ID       string
 	Name     string
 	Comment  string
-	Duration int
+	Duration float32
 	Owner    string
 	Public   bool
 	Tracks   MediaFiles

persistence/playlist_repository.go

@@ -13,7 +13,7 @@ type playlist struct {
 	ID       string `orm:"column(id)"`
 	Name     string
 	Comment  string
-	Duration int
+	Duration float32
 	Owner    string
 	Public   bool
 	Tracks   string

scanner/metadata_ffmpeg.go

@@ -36,7 +36,7 @@ func (m *Metadata) DiscNumber() (int, int)      { return m.parseTuple("tpa", "di
 func (m *Metadata) HasPicture() bool            { return m.getTag("has_picture") == "true" }
 func (m *Metadata) Comment() string             { return m.getTag("comment") }
 func (m *Metadata) Compilation() bool           { return m.parseBool("compilation") }
-func (m *Metadata) Duration() int               { return m.parseDuration("duration") }
+func (m *Metadata) Duration() float32           { return m.parseDuration("duration") }
 func (m *Metadata) BitRate() int                { return m.parseInt("bitrate") }
 func (m *Metadata) ModificationTime() time.Time { return m.fileInfo.ModTime() }
 func (m *Metadata) FilePath() string            { return m.filePath }
@@ -257,13 +257,13 @@ func (m *Metadata) parseBool(tagName string) bool {
 
 var zeroTime = time.Date(0000, time.January, 1, 0, 0, 0, 0, time.UTC)
 
-func (m *Metadata) parseDuration(tagName string) int {
+func (m *Metadata) parseDuration(tagName string) float32 {
 	if v, ok := m.tags[tagName]; ok {
 		d, err := time.Parse("15:04:05", v)
 		if err != nil {
 			return 0
 		}
-		return int(d.Sub(zeroTime).Seconds())
+		return float32(d.Sub(zeroTime).Seconds())
 	}
 	return 0
 }

scanner/metadata_test.go

@@ -98,6 +98,14 @@ Input #0, mp3, from '/Users/deluan/Music/iTunes/iTunes Media/Music/Compilations/
 			Expect(md.Compilation()).To(BeTrue())
 		})
 
+		It("parses duration with milliseconds", func() {
+			const output = `
+Input #0, mp3, from '/Users/deluan/Music/iTunes/iTunes Media/Music/Compilations/Putumayo Presents Blues Lounge/09 Pablo's Blues.mp3':
+  Duration: 00:05:02.63, start: 0.000000, bitrate: 140 kb/s`
+			md, _ := extractMetadata("tests/fixtures/test.mp3", output)
+			Expect(md.Duration()).To(BeNumerically("~", 302.63, 0.001))
+		})
+
 		It("parses stream level tags", func() {
 			const output = `
 Input #0, ogg, from './01-02 Drive (Teku).opus':

server/subsonic/playlists.go

@@ -32,7 +32,7 @@ func (c *PlaylistsController) GetPlaylists(w http.ResponseWriter, r *http.Reques
 		playlists[i].Name = p.Name
 		playlists[i].Comment = p.Comment
 		playlists[i].SongCount = len(p.Tracks)
-		playlists[i].Duration = p.Duration
+		playlists[i].Duration = int(p.Duration)
 		playlists[i].Owner = p.Owner
 		playlists[i].Public = p.Public
 	}