Enum MetadataEvent 

pub enum MetadataEvent {
    BlackStart {
        at: Timestamp,
    },
    BlackEnd {
        at: Timestamp,
        duration_us: i64,
    },
    SilenceStart {
        at: Timestamp,
        channel_number: Option<usize>,
    },
    SilenceEnd {
        at: Timestamp,
        duration_us: i64,
        channel_number: Option<usize>,
    },
    SceneChange {
        at: Timestamp,
        score: f64,
    },
    CropDetect {
        at: Timestamp,
        x: i32,
        y: i32,
        w: i32,
        h: i32,
    },
    R128Frame {
        at: Timestamp,
        momentary: Option<f64>,
        short_term: Option<f64>,
        integrated: Option<f64>,
        lra: Option<f64>,
        true_peak: Option<f64>,
    },
    R128Summary {
        integrated: Option<f64>,
        lra: Option<f64>,
        true_peak: Option<f64>,
    },
    StreamEnd {
        media: AVMediaType,
        at: Timestamp,
    },
}

A single typed detection/measurement result decoded from frame metadata.

All loudness fields are Option<f64>: ebur128 may not have produced a value yet, and true_peak is only Some when the build emitted the per-channel true-peak keys (i.e. peak=true was requested and the keys are present).

Variants

BlackStart

A black region began at at (blackdetect).

Fields

at: Timestamp

BlackEnd

A black region ended at at; duration_us is end - start.

Fields

at: Timestamp

duration_us: i64

SilenceStart

A silent region began (silencedetect). channel_number is the 1-based channel from the mono=1 .N key suffix, or None in combined mode.

Fields

at: Timestamp

channel_number: Option<usize>

SilenceEnd

A silent region ended; duration_us from lavfi.silence_duration.

Fields

at: Timestamp

duration_us: i64

channel_number: Option<usize>

SceneChange

A scene change was detected (scdet); emitted only on frames that carry lavfi.scd.time. score is the lavfi.scd.score value.

Fields

at: Timestamp

score: f64

CropDetect

A crop suggestion for this frame (cropdetect).

Fields

at: Timestamp

x: i32

y: i32

w: i32

h: i32

R128Frame

Per-frame EBU R128 measurement (ebur128 metadata=1).

Fields

at: Timestamp

momentary: Option<f64>

short_term: Option<f64>

integrated: Option<f64>

lra: Option<f64>

true_peak: Option<f64>

R128Summary

Final R128 values (last frame seen), emitted once at end of stream.

Fields

integrated: Option<f64>

lra: Option<f64>

true_peak: Option<f64>

StreamEnd

End-of-stream marker carrying the last frame timestamp, used by the folder to close regions that never received an explicit end.

Fields

media: AVMediaType

at: Timestamp

Trait Implementations

impl Clone for MetadataEvent

fn clone(&self) -> MetadataEvent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MetadataEvent

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

Formats the value using the given formatter.

impl PartialEq for MetadataEvent

fn eq(&self, other: &MetadataEvent) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for MetadataEvent