web/remux,convert: shut down libav.js on page exit

web/src/routes/convert/+page.svelte

@@ -4,6 +4,7 @@
 
     import DropReceiver from "$components/misc/DropReceiver.svelte";
     import FileReceiver from "$components/misc/FileReceiver.svelte";
+    import { onDestroy } from "svelte";
 
     let file: File | undefined;
 
@@ -13,8 +14,11 @@
     const render = async () => {
         if (!file) return;
         await ff.init();
-        await ff.transcode(file);
-    };
+
+    onDestroy(async () => {
+        await ff.cleanup();
+        ff.shutdown();
+    });
 
     $: if (file) {
         render();

web/src/routes/remux/+page.svelte

@@ -2,6 +2,7 @@
     import mime from "mime";
     import LibAVWrapper from "$lib/libav/remux";
 
+    import { onDestroy } from "svelte";
     import { beforeNavigate, goto } from "$app/navigation";
 
     import { t } from "$lib/i18n/translations";
@@ -102,6 +103,7 @@
                     });
                 return;
             }
+            console.log(file_info)
 
             totalDuration = Number(file_info.format.duration);
 
@@ -193,6 +195,8 @@
     $: if (file) {
         render();
     }
+
+    onDestroy(() => ff.shutdown());
 </script>
 
 <svelte:head>