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Add AudioEmbedder documentation

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PiperOrigin-RevId: 489532283
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Sebastian Schmidt 2022-11-18 12:10:47 -08:00 committed by Copybara-Service
parent e2052a6a51
commit 71ae496a20
1 changed files with 40 additions and 0 deletions
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mediapipe/tasks/cc/audio/audio_embedder/audio_embedder_graph.cc
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@ -100,6 +100,46 @@ void ConfigureAudioToTensorCalculator(
} }
} // namespace } // namespace
// An "AudioEmebdderGraph" performs embedding extractions.
// - Accepts CPU audio buffer and outputs embedding results on CPU.
//
// Inputs:
// AUDIO - Matrix
// Audio buffer to perform classification on.
// SAMPLE_RATE - double @Optional
// The sample rate of the corresponding audio data in the "AUDIO" stream.
// If sample rate is not provided, the "AUDIO" stream must carry a time
// series stream header with sample rate info.
//
// Outputs:
// EMBEDDINGS - EmbeddingResult @Optional
// The embedding results aggregated by head. Only produces results if
// the graph if the 'use_stream_mode' option is true.
// TIMESTAMPED_EMBEDDINGS - std::vector<EmbeddingResult> @Optional
// The embedding result aggregated by timestamp, then by head. Only
// produces results if the graph if the 'use_stream_mode' option is false.
//
// Example:
// node {
// calculator: "mediapipe.tasks.audio.audio_embedder.AudioEmbedderGraph"
// input_stream: "AUDIO:audio_in"
// input_stream: "SAMPLE_RATE:sample_rate_in"
// output_stream: "EMBEDDINGS:embeddings_out"
// output_stream: "TIMESTAMPED_EMBEDDINGS:timestamped_embeddings_out"
// options {
// [mediapipe.tasks.audio.audio_embedder.proto.AudioEmbedderGraphOptions.ext]
// {
// base_options {
// model_asset {
// file_name: "/path/to/model.tflite"
// }
// }
// embedder_options {
// l2_normalize: true
// }
// }
// }
// }
class AudioEmbedderGraph : public core::ModelTaskGraph { class AudioEmbedderGraph : public core::ModelTaskGraph {
public: public:
absl::StatusOr<CalculatorGraphConfig> GetConfig( absl::StatusOr<CalculatorGraphConfig> GetConfig(