Revert "Add MT support to ffmpeg when possible"

This reverts commit e66a9d87b8.

public/Program Files/ffmpeg/mt/ffmpeg-core.worker.js

@@ -1 +0,0 @@
-"use strict";var Module={};var initializedJS=false;function threadPrintErr(){var text=Array.prototype.slice.call(arguments).join(" ");console.error(text)}function threadAlert(){var text=Array.prototype.slice.call(arguments).join(" ");postMessage({cmd:"alert",text:text,threadId:Module["_pthread_self"]()})}var err=threadPrintErr;self.alert=threadAlert;Module["instantiateWasm"]=(info,receiveInstance)=>{var module=Module["wasmModule"];Module["wasmModule"]=null;var instance=new WebAssembly.Instance(module,info);return receiveInstance(instance)};self.onunhandledrejection=e=>{throw e.reason??e};function handleMessage(e){try{if(e.data.cmd==="load"){let messageQueue=[];self.onmessage=e=>messageQueue.push(e);self.startWorker=instance=>{Module=instance;postMessage({"cmd":"loaded"});for(let msg of messageQueue){handleMessage(msg)}self.onmessage=handleMessage};Module["wasmModule"]=e.data.wasmModule;for(const handler of e.data.handlers){Module[handler]=function(){postMessage({cmd:"callHandler",handler:handler,args:[...arguments]})}}Module["wasmMemory"]=e.data.wasmMemory;Module["buffer"]=Module["wasmMemory"].buffer;Module["ENVIRONMENT_IS_PTHREAD"]=true;if(typeof e.data.urlOrBlob=="string"){importScripts(e.data.urlOrBlob)}else{var objectUrl=URL.createObjectURL(e.data.urlOrBlob);importScripts(objectUrl);URL.revokeObjectURL(objectUrl)}createFFmpegCore(Module)}else if(e.data.cmd==="run"){Module["__emscripten_thread_init"](e.data.pthread_ptr,0,0,1);Module["__emscripten_thread_mailbox_await"](e.data.pthread_ptr);Module["establishStackSpace"]();Module["PThread"].receiveObjectTransfer(e.data);Module["PThread"].threadInitTLS();if(!initializedJS){initializedJS=true}try{Module["invokeEntryPoint"](e.data.start_routine,e.data.arg)}catch(ex){if(ex!="unwind"){throw ex}}}else if(e.data.cmd==="cancel"){if(Module["_pthread_self"]()){Module["__emscripten_thread_exit"](-1)}}else if(e.data.target==="setimmediate"){}else if(e.data.cmd==="checkMailbox"){if(initializedJS){Module["checkMailbox"]()}}else if(e.data.cmd){err("worker.js received unknown command "+e.data.cmd);err(e.data)}}catch(ex){if(Module["__emscripten_thread_crashed"]){Module["__emscripten_thread_crashed"]()}throw ex}}self.onmessage=handleMessage;

utils/ffmpeg/index.ts

@@ -1,7 +1,7 @@
 import { basename, dirname, extname, join } from "path";
 import { type FFmpeg } from "@ffmpeg/ffmpeg";
 import { type FFmpegTranscodeFile } from "utils/ffmpeg/types";
-import { fetchBlob, hasSharedArrayBuffer } from "utils/functions";
+import { fetchBlob } from "utils/functions";
 
 export const getFFmpeg = async (
   printLn: (message: string) => void = console.info
@@ -11,24 +11,13 @@ export const getFFmpeg = async (
 
   ffmpeg.on("log", ({ message }) => printLn(message));
 
-  const canMultiThread = hasSharedArrayBuffer();
-
   await ffmpeg.load({
     coreURL: URL.createObjectURL(
-      await fetchBlob(
-        `/Program Files/ffmpeg${canMultiThread ? "/mt" : ""}/ffmpeg-core.js`
-      )
+      await fetchBlob("/Program Files/ffmpeg/ffmpeg-core.js")
     ),
     wasmURL: URL.createObjectURL(
-      await fetchBlob(
-        `/Program Files/ffmpeg${canMultiThread ? "/mt" : ""}/ffmpeg-core.wasm`
-      )
+      await fetchBlob("/Program Files/ffmpeg/ffmpeg-core.wasm")
     ),
-    ...(canMultiThread && {
-      workerURL: URL.createObjectURL(
-        await fetchBlob("/Program Files/ffmpeg/mt/ffmpeg-core.worker.js")
-      ),
-    }),
   });
 
   return ffmpeg;

utils/functions.ts

@@ -1170,9 +1170,6 @@ export const generatePrettyTimestamp = (): string =>
 export const isFileSystemMappingSupported = (): boolean =>
   typeof FileSystemHandle === "function" && "showDirectoryPicker" in window;
 
-export const hasSharedArrayBuffer = (): boolean =>
-  window.crossOriginIsolated && typeof SharedArrayBuffer === "function";
-
 export const hasFinePointer = (): boolean =>
   window.matchMedia("(pointer: fine)").matches;