don't crash when trying to compress an enormous file

src/main.ts

@@ -144,7 +144,9 @@ app.whenReady().then(() => {
     };
   };
 
-  /** Reduce size of a file */
+  /** Reduce size of a file
+   * Returns an empty string in case of failing
+   */
   const reduceSize = async (
     file: string,
     bitrate: number,
@@ -153,9 +155,11 @@ app.whenReady().then(() => {
     const audioBitrate = Math.ceil(
       audioTracks.reduce((sum, current) => current + sum, 0)
     );
-    let videoBitrate = bitrate - audioBitrate;
+    const videoBitrate = bitrate - audioBitrate;
+    let finalFile;
 
-    const finalFile = getNewFilename(file, "Compressed - ");
+    if (videoBitrate > 0) {
+      finalFile = getNewFilename(file, "Compressed - ");
 
       // Trash the output, depends on the platform
       const nul = process.platform === "win32" ? "NUL" : "/dev/null";
@@ -207,11 +211,14 @@ app.whenReady().then(() => {
        "${finalFile}"`
       ).catch((e) => registerError(win, e));
 
-    // Delete the old video file
-    deleteFile(file);
-
       // Delete the 2 pass temporary files
       deleteTwoPassFiles(process.cwd());
+    } else {
+      finalFile = "";
+    }
+
+    // Delete the old video file
+    deleteFile(file);
 
     return finalFile;
   };

src/scripts/renderer.ts

@@ -103,6 +103,7 @@ const main = async () => {
   updateMessage("Récupération des fichiers...");
   const files = await getFiles();
   let processedFiles = "";
+  let numberOfUncompressableFiles = 0;
 
   // Iterate over all the retrieved files
   for (const [idx, file] of files.entries()) {
@@ -148,14 +149,26 @@ const main = async () => {
     }
 
     // Append title to the list of processed files
+    if (finalTitle.length > 0) {
       processedFiles += `\n- ${finalTitle}`;
       updateMessage(`Fichier ${counter} traités.`);
+    } else {
+      processedFiles += `\n- ${file} [incompressable]`;
+      updateMessage(`Fichier ${counter} trop large pour être compressé.`);
+      numberOfUncompressableFiles++;
+    }
+  }
+
+  let errorMessage = "";
+  if (numberOfUncompressableFiles > 0) {
+    errorMessage += `\nNombre de fichier incompressable : ${numberOfUncompressableFiles}.`;
   }
 
   // Send confirmation to the user that we're done
   await internals.confirmation(
-    `${files.length} fichiers traités : ${processedFiles}`
+    `${files.length} fichiers traités : ${processedFiles}` + errorMessage
   );
+
   await internals.exit();
 };