sequencer

Documentation

Index

• type Bar
  • func (b Bar) Len() uint8
  • func (b *Bar) SortEvents()
• type Bars
  • func (b Bars) Len() int
  • func (br Bars) Less(a, b int) bool
  • func (br Bars) Renumber()
  • func (br Bars) Swap(a, b int)
• type Event
  • func (e *Event) AbsTicks(b *Bar, ticks smf.MetricTicks) (start, end int64)
  • func (e Event) Inspect() string
• type Events
  • func (e Events) Len() int
  • func (e Events) Less(a, b int) bool
  • func (e Events) Swap(a, b int)
• type Song
  • func FromSMF(sm smf.SMF) *Song
  • func New() *Song
  • func (s *Song) AddBar(b Bar)
  • func (s *Song) Bars() Bars
  • func (s *Song) FindBar(absTicks int64) (found *Bar)
  • func (s *Song) SetBarAbsTicks()
  • func (s *Song) ToSMF0() smf.SMF
  • func (s Song) ToSMF1() smf.SMF

Types

type Bar

type Bar struct {
	Number   uint
	TimeSig  [2]uint8
	Events   Events
	Key      *smf.Key // TODO a key change, if != nil
	AbsTicks int64
}

func (Bar) Len

func (b Bar) Len() uint8

func (*Bar) SortEvents

func (b *Bar) SortEvents()

type Bars

type Bars []*Bar

func (Bars) Len

func (b Bars) Len() int

func (Bars) Less

func (br Bars) Less(a, b int) bool

func (Bars) Renumber

func (br Bars) Renumber()

func (Bars) Swap

func (br Bars) Swap(a, b int)

type Event

type Event struct {
	TrackNo  int
	Pos      uint8       // in 32th
	Duration uint8       // in 32th for noteOn messages, it is the length of the note, for all other messages, it is 0
	Message  smf.Message // may only be channel messages or sysex messages. no noteon velocity 0, or noteoff messages, this is expressed via Duration
	// contains filtered or unexported fields
}

func (*Event) AbsTicks

func (e *Event) AbsTicks(b *Bar, ticks smf.MetricTicks) (start, end int64)

func (Event) Inspect

func (e Event) Inspect() string

type Events

type Events []*Event

func (Events) Len

func (e Events) Len() int

func (Events) Less

func (e Events) Less(a, b int) bool

warning: only works within a bar

func (Events) Swap

func (e Events) Swap(a, b int)

type Song

type Song struct {
	Title      string
	Composer   string
	TrackNames []string
	Ticks      smf.MetricTicks
	// contains filtered or unexported fields
}

func FromSMF

func FromSMF(sm smf.SMF) *Song

func New

func New() *Song

func (*Song) AddBar

func (s *Song) AddBar(b Bar)

func (*Song) Bars

func (s *Song) Bars() Bars

func (*Song) FindBar

func (s *Song) FindBar(absTicks int64) (found *Bar)

func (*Song) SetBarAbsTicks

func (s *Song) SetBarAbsTicks()

func (*Song) ToSMF0

func (s *Song) ToSMF0() smf.SMF

func (Song) ToSMF1

func (s Song) ToSMF1() smf.SMF