Struct KeyframeIndex 

pub struct KeyframeIndex { /* private fields */ }

Implementations

impl KeyframeIndex

pub fn new() -> Self

pub fn add( &mut self, id: &str, layer: &str, frame: u32, descriptors: &[[u32; 8]], )

Posts keyframe id (of layer, at frame) under the words of its features’ descriptors. A keyframe at a frame that already has one in a posting replaces it there.

pub fn retrieve( &mut self, layer: &str, frame: u32, descriptors: &[[u32; 8]], exclude: Option<&str>, min_gap: Option<u32>, ) -> Retrieval

Candidate keyframes of layer for a query at frame with these feature descriptors, by word votes. Each sampled word votes for the earliest POSTING_SPREAD keyframes in its posting and, when the posting is longer, the latest ones too (so recent keyframes still get found on a long recording); exclude never gets a vote. min_gap (default DEFAULT_MIN_GAP) is what Retrieval::admits checks.

Trait Implementations

impl Default for KeyframeIndex

fn default() -> Self

Returns the “default value” for a type.