feat: streamable support

src/modules/processing/services/streamable.js

@@ -0,0 +1,21 @@
+export default async function(obj) {
+    const video = await fetch(`https://api.streamable.com/videos/${obj.id}`)
+        .then((r) => {
+            if (r.status === 404)
+                return undefined;
+            else
+                return r.json(); 
+        }).catch(() => { return false });
+
+    if (video === undefined) return { error: 'ErrorEmptyDownload' } ;
+    else if (!video) return { error: 'ErrorCouldntFetch' }; // not sure if this is the correct error here, should it be this or ErrorCantConnectToServiceAPI
+
+    let best;
+    if (obj.isAudioOnly || obj.quality === "max" || obj.quality >= "720") // audio seems to be compressed on the mp4-mobile version so isAudiOnly only usese the higest quality
+        best = video.files.mp4 ?? video.files['mp4-mobile'];
+    else
+        best = video.files['mp4-mobile'] ?? video.files.mp4;
+
+    if (best) return { urls: best.url, filename: `streamable_${obj.id}_${best.width}x${best.height}.mp4`, audioFilename: `streamable_${obj.id}_audio` }; // video filename isnt actually used since its redirected but who cares
+    else return { error: 'ErrorEmptyDownload' }
+}