From 6c9104318809936bb705b7246ad8376b76da8a0b Mon Sep 17 00:00:00 2001
From: Mou <m.mounir.f@gmail.com>
Date: Mon, 1 Apr 2024 02:18:33 +0200
Subject: [PATCH] Move gesture recognizer defaults from constants.ts to async
 create method

---
 src/lib/Recognizer.ts | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/src/lib/Recognizer.ts b/src/lib/Recognizer.ts
index c326ac2..96babeb 100644
--- a/src/lib/Recognizer.ts
+++ b/src/lib/Recognizer.ts
@@ -1,9 +1,9 @@
 import {
+	FilesetResolver,
 	GestureRecognizer,
 	type GestureRecognizerOptions,
 	type GestureRecognizerResult,
 } from "@mediapipe/tasks-vision";
-import { defaultOptions, defaultWasmFileset } from "./constants";
 import type { WasmFileset } from "./types";
 
 /**
@@ -68,8 +68,31 @@ export default class Recognizer {
 		vision?: WasmFileset;
 		options?: GestureRecognizerOptions;
 	}): Promise<Recognizer> {
+		/**
+		 * Default WebAssembly fileset required for MediaPipe Task APIs.
+		 * https://cdn.jsdelivr.net/npm/@mediapipe/tasks-vision@latest/wasm
+		 */
+		const defaultWasmFileset = await FilesetResolver.forVisionTasks(
+			"https://cdn.jsdelivr.net/npm/@mediapipe/tasks-vision@latest/wasm",
+		);
+
 		const recognizerVision = vision || defaultWasmFileset;
 
+		/**
+		 * Default options for the gesture recognizer.
+		 */
+		const defaultOptions: GestureRecognizerOptions = {
+			runningMode: "VIDEO",
+			baseOptions: {
+				// Pretrained model for gesture recognition.
+				// https://developers.google.com/mediapipe/solutions/vision/gesture_recognizer#models
+				modelAssetPath:
+					"https://storage.googleapis.com/mediapipe-models/gesture_recognizer/gesture_recognizer/float16/1/gesture_recognizer.task",
+				delegate: "GPU",
+			},
+			numHands: 1,
+		};
+
 		const recognizerOptions = options || defaultOptions;
 
 		const recognizer = new Recognizer(videoElement, recognizerVision, recognizerOptions);