fix bug

app/Model/MediaModel.php

@@ -284,7 +284,12 @@ class MediaModel extends Eloquent
 
             if(isset($request->is_fake) && $request->is_fake=='1'){
                 $url = getRbac($request, 'callback/av/transform/volce', '', $type = 'fake_transcode');
-                http_request_code($url, null, 'POST', (['mediaid' => $media_id,'duration' =>$request->duration ?? '0','size'=>'0']));
+
+                //$data = json_encode($params);
+                $header = array(
+                    "Content-Type: application/json",
+                );
+                http_request_code($url, $header, 'POST', json_encode(['mediaid' => $media_id,'duration' =>$request->duration ?? '0','size'=>'0']));
                 LogModel::addlog(["火山媒资信息" => $data, ['媒资ID为：=> ' . $id]]);
             }