moved to new repo

modules/stream/select-quality.js

@@ -0,0 +1,32 @@
+import { services, quality as mq } from "../config.js";
+
+function closest(goal, array) {
+    return array.sort().reduce(function(prev, curr) {
+        return (Math.abs(curr - goal) < Math.abs(prev - goal) ? curr : prev);
+    });
+}
+
+export default function(service, quality, maxQuality) {
+    if (quality == "max") {
+        return maxQuality
+    }
+
+    quality = parseInt(mq[quality])
+    maxQuality = parseInt(maxQuality)
+
+    if (quality >= maxQuality || quality == maxQuality) {
+        return maxQuality
+    }
+    if (quality < maxQuality) {
+        if (services[service]["quality"][quality]) {
+            return quality
+        } else {
+            let s = Object.keys(services[service]["quality_match"]).filter((q) => {
+                if (q <= quality) {
+                    return true
+                }
+            })
+            return closest(quality, s)
+        }
+    }
+}