1.优化ffmpeg命令，适配各种类型视频

@@ -139,7 +139,7 @@ class AdminMakeVideoController extends AdminController
                 })
                 ->default(2);
 
-            $form->text('location','此地')->placeholder('暂时先手动输入此地');
+            $form->text('location','此地')->default("/")->placeholder('暂时先手动输入此地');
 
             $form->display('created_at');
             $form->display('updated_at');

@@ -141,7 +141,7 @@ class AdminMakeImmerse implements ShouldQueue
                 ' -i ' . escapeshellarg($file).
                 ' -i ' . escapeshellarg($watermark).
                 $audio_input .
-                ' -filter_complex "[0:0]scale=' . $this->output_width . ':' . $this->output_height . ',' . $drawtext .
+                ' -filter_complex "[0:v]scale=' . $this->output_width . ':' . $this->output_height . ',' . $drawtext .
                 ' [text];[text]'.
                 ' [1:v]overlay=20:20[v]" ' .
                 ' -map [v] -map '. $audio_filter .