Update workflow and ffmpeg configuration

src/lib/ffmpeg-v2.ts

@@ -455,8 +455,8 @@ async function F_build_ffmpeg_flags_t1(arg0: {
   // flags.push("-reconnect_on_http_error", "429,500,502,503,504");
   flags.push("-reconnect_on_http_error", "500,502,503,504");
 
-  flags.push("-fflags", "+discardcorrupt+genpts");
-  // flags.push("-fflags", "+discardcorrupt+genpts+igndts"); // Don't hang on truncated segments
+  // flags.push("-fflags", "+discardcorrupt+genpts");
+  flags.push("-fflags", "+discardcorrupt+genpts+igndts"); // Don't hang on truncated segments
   // flags.push("-live_start_index", "-2"); // For live streams: start near the end
 
   if (playback.type === "hls") {
@@ -641,7 +641,7 @@ async function F_build_ffmpeg_flags_t1(arg0: {
   }
 
   if (subs) {
-    // flags.push("-async", "1");
+    flags.push("-async", "1");
     flags.push("-c:s", "mov_text");
 
     subs.forEach((s, i) => {