无法播放从安卓上传到php服务器的视频

我已经将模拟器捕获的mp4视频上传到php服务器，但我无法使用任何播放器（窗口媒体播放器，VLC等）播放此上传的视频。

当我使用文件资源管理器从模拟器中提取此 Vidoe 时，它正在使用 VLC 媒体播放器播放。

 protected String doInBackground(Void... params)
        {
            HttpURLConnection connection = null;
            DataOutputStream outputStream = null;
            DataInputStream inputStream = null;
            String urlServer = "http://10.0.2.2:80/maria/upload_file2.php";
            String pathToOurFile="/storage/sdcard/DCIM/Camera/VID_20150225_152244.mp4";

            String lineEnd = "'r'n";
            String twoHyphens = "--";
            String boundary =  "123*****sdf";
            int bytesRead, bytesAvailable, bufferSize;
            byte[] buffer;
            int maxBufferSize = 1*1024*1024;
            try
            {
                FileInputStream fileInputStream = new FileInputStream(new File(pathToOurFile) );
                URL url = new URL(urlServer);
                connection = (HttpURLConnection) url.openConnection();
                // Allow Inputs & Outputs
                connection.setDoInput(true);
                connection.setDoOutput(true);
                connection.setUseCaches(false);
                // Enable POST method
                connection.setRequestMethod("POST");
                connection.setRequestProperty("Connection", "Keep-Alive");
                connection.setRequestProperty("Content-Type", "multipart/form-data;boundary=123*****sdf");
                outputStream = new DataOutputStream( connection.getOutputStream() );
                outputStream.writeBytes(twoHyphens + boundary + lineEnd);
                outputStream.writeBytes("Content-Disposition: form-data; name='"uploadedfile'";filename='"" + pathToOurFile );
                outputStream.writeBytes(lineEnd);
                bytesAvailable = fileInputStream.available();
                bufferSize = Math.min(bytesAvailable, maxBufferSize);
                buffer = new byte[bufferSize];
                // Read file
                bytesRead = fileInputStream.read(buffer, 0, bufferSize);
                while (bytesRead > 0)
                {
                    outputStream.write(buffer, 0, bufferSize);
                    bytesAvailable = fileInputStream.available();
                    bufferSize = Math.min(bytesAvailable, maxBufferSize);
                    bytesRead = fileInputStream.read(buffer, 0, bufferSize);
                }
                outputStream.writeBytes(lineEnd);
                outputStream.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
                // Responses from the server (code and message)
                int serverResponseCode = connection.getResponseCode();
                String serverResponseMessage = connection.getResponseMessage();
                Log.d("ServerCode",""+serverResponseCode);
                Log.d("serverResponseMessage",""+serverResponseMessage);
                fileInputStream.close();
                outputStream.flush();
                outputStream.close();
            }
            catch (Exception ex)
            {
                ex.printStackTrace();
            }
                       return "Success";
        }

服务器端的 PHP 代码。

$targetfolder = "images/";
$targetfolder = $targetfolder . basename( $_FILES['uploadedfile']['name']) ;


if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $targetfolder))
 {
 echo "The file ". basename( $_FILES['uploadedfile']['name']). " is uploaded";
 }
 else {
 echo "Problem uploading file";
 }

我已经通过从HTML表单上传视频来测试PHP代码，这个视频播放正常，我认为Android代码有问题。 有人可以帮助我找到代码中的问题。