1.继续调试ffmpeg命令

@@ -60,7 +60,7 @@ class MakeVideo implements ShouldQueue
         $signature = "一言";
         $signature_x = 0;
         $signature_y = -20;
-        $content = $adminMakeVideo->poem->title . "\t" . $adminMakeVideo->poem->author . PHP_EOL .
+        $content = $adminMakeVideo->poem->title . "\\t" . '  \-\- ' . $adminMakeVideo->poem->author . PHP_EOL .
             $adminMakeVideo->poem->content . PHP_EOL;
         $content_position = $adminMakeVideo->getContentPosition();