Class: Vizcore::Analysis::FeatureReplay

Inherits:
Object
  • Object
show all
Defined in:
lib/vizcore/analysis/feature_replay.rb

Overview

Replays recorded analysis features as a pipeline-compatible source.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path:) ⇒ FeatureReplay

Returns a new instance of FeatureReplay.



13
14
15
16
17
18
19
 
# File 'lib/vizcore/analysis/feature_replay.rb', line 13

def initialize(path:)
  @path = Pathname.new(path.to_s).expand_path
  payload = load_payload
  @metadata = deep_symbolize(payload.fetch("metadata", {}))
  @features = load_features(payload)
  @cursor = 0
end

Instance Attribute Details

#metadata ⇒ Object (readonly)

Returns the value of attribute metadata.



11
12
13
 
# File 'lib/vizcore/analysis/feature_replay.rb', line 11

def metadata
  @metadata
end

Instance Method Details

#call(_samples = nil) ⇒ Hash<Symbol, Object>

Returns recorded audio analysis for the next frame.

Parameters:

  • _samples (Array<Float>, nil) (defaults to: nil) —

    ignored; replay data already contains analyzed features

Returns:

  • (Hash<Symbol, Object>) —

    recorded audio analysis for the next frame



23
24
25
26
27
 
# File 'lib/vizcore/analysis/feature_replay.rb', line 23

def call(_samples = nil)
  audio = @features.fetch(@cursor)
  @cursor = (@cursor + 1) % @features.length
  deep_dup(audio)
end

#frame_count ⇒ Object 



29
30
31
 
# File 'lib/vizcore/analysis/feature_replay.rb', line 29

def frame_count
  @features.length
end