Struct ProgramMeta 

pub struct ProgramMeta {

    pub name: String,
    pub tempo_bpm: f32,
    pub beats_per_bar: u32,
    pub steps_per_beat: u32,
    pub tempo_map: Vec<TempoPoint>,
    pub meter_map: Vec<MeterPoint>,
    pub pickup: Option<Beat>,
    pub sections: Vec<Section>,
    pub markers: Vec<Marker>,
    pub length_bars: u32,
    pub duration_secs: f32,
    pub duration_frames: u64,
    pub sample_rate: u32,
    pub tracks: Vec<TrackMeta>,
}

The musical facts of a compiled song, resolved once at compile time.

Fields

name: String

The song’s name.

tempo_bpm: f32

Tempo in beats per minute (clamped at compile, like the compiler’s duration math: degenerate tempos floor at 1).

beats_per_bar: u32

Time-signature numerator (4 = 4/4) — the default meter before any meter_map points.

steps_per_beat: u32

Grid resolution (4 = sixteenth notes).

tempo_map: Vec<TempoPoint>

Tempo changes at exact beat positions (empty = constant tempo_bpm).

meter_map: Vec<MeterPoint>

Time-signature changes by bar (empty = beats_per_bar/4 throughout).

pickup: Option<Beat>

The pickup bar’s length in beats, if any.

sections: Vec<Section>

Named bar ranges, sorted by bar — the runtime’s transition targets.

markers: Vec<Marker>

Named beat points, sorted by position.

length_bars: u32

The song’s length in bars (end of its last placement or direct note).

duration_secs: f32

Total duration in seconds, including the release/reverb tail.

duration_frames: u64

Total duration in frames (duration_secs × sample_rate, rounded).

sample_rate: u32

The sample rate the program was compiled for.

tracks: Vec<TrackMeta>

One entry per track, in declaration order (so id is stable).

Trait Implementations

impl Clone for ProgramMeta

fn clone(&self) -> ProgramMeta

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ProgramMeta

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ProgramMeta

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ProgramMeta

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.