How do I check the type of uploaded video file as .mpeg/.mpg

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I have created the following form:

XML

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
        <asp:FileUpload ID="file1" runat="server" EnableViewState="False" />
        <br /><br />
        <asp:Button ID="cmdSubmit" Text="Submit" runat="server" onclick="cmdSubmit_Click" />
        <br /><br />
        <asp:TextBox ID="txt1" Text="" runat="server" Height="253px" TextMode="MultiLine" Width="630px"></asp:TextBox>
    </form>
</body>
</html>

The code behind file (.cs) is as follows:

C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class _Default : System.Web.UI.Page
{
    [System.Runtime.InteropServices.DllImport("urlmon.dll", CharSet = System.Runtime.InteropServices.CharSet.Unicode, ExactSpelling = true, SetLastError = false)]
    private extern static int FindMimeFromData(IntPtr pBC, [System.Runtime.InteropServices.MarshalAs(System.Runtime.InteropServices.UnmanagedType.LPWStr)]
string pwzUrl, [System.Runtime.InteropServices.MarshalAs(System.Runtime.InteropServices.UnmanagedType.LPArray, ArraySubType = System.Runtime.InteropServices.UnmanagedType.I1, SizeParamIndex = 3)]
byte[] pBuffer, int cbSize, [System.Runtime.InteropServices.MarshalAs(System.Runtime.InteropServices.UnmanagedType.LPWStr)]
string pwzMimeProposed, int dwMimeFlags, ref IntPtr ppwzMimeOut, int dwReserved);

    protected void Page_Load(object sender, EventArgs e)
    {

    }



    public static string getMimeFromFile(HttpPostedFile file)
    {
        IntPtr mimeout = default(IntPtr);

        int MaxContent = (int)file.ContentLength;
        if (MaxContent > 50960)
        {
            MaxContent = 50960;
        }
        //if (MaxContent > 4096)
        //{
        //    MaxContent = 4096;
        //}

        byte[] buf = new byte[MaxContent + 1];
        file.InputStream.Read(buf, 0, MaxContent);
        int result = FindMimeFromData(IntPtr.Zero, file.FileName, buf, MaxContent, null, 0, ref mimeout, 0);

        if (result != 0)
        {
            System.Runtime.InteropServices.Marshal.FreeCoTaskMem(mimeout);
            return "";
        }

        string mime = System.Runtime.InteropServices.Marshal.PtrToStringUni(mimeout);
        System.Runtime.InteropServices.Marshal.FreeCoTaskMem(mimeout);

        return mime.ToLower();
    }

    protected void cmdSubmit_Click(object sender, EventArgs e)
    {
        string RealMimeType = getMimeFromFile(file1.PostedFile);
        txt1.Text = RealMimeType.Trim();
    }
}

The problem is the code is working fine with mp3 file and other files as well but when I am trying to load a .mpg file 47 MB, it is refreshing the page and showing "This webpage is not available" in Chrome.

Please correct me where I am wrong.

Thanks & regards,
Indrajeet

Posted 19-Mar-14 5:45am

Indrojeet_Bhattacharya

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Comments

syed shanu 20-Mar-14 2:04am

Chk this links
http://msdn.microsoft.com/en-us/library/aa479405.aspx
http://stackoverflow.com/questions/15248934/maximum-file-size-allowed-by-asp-net-file-upload-control
http://blogs.msdn.com/b/prashant_upadhyay/archive/2011/07/13/large-file-upload-issue-in-asp-net.aspx

Indrojeet_Bhattacharya 20-Mar-14 14:10pm

Thanks for the help.

2 solutions

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ravikhoda · Accepted Answer · 2014-03-20T00:50:00

Solution 1

you can try and check path.getfileextension(filepath / fileupload.filename) methods using system.io. this will give you the extension of the URL and you can check with mpg, .mpegv etc....

Posted 20-Mar-14 0:50am

ravikhoda

Comments

Indrojeet_Bhattacharya 20-Mar-14 14:10pm

Thanks for the help.

Murali0195 · Accepted Answer · 2014-03-20T01:10:00

Solution 2

Hi...
See this one may its helpful 2 u!

C#

string filter = Path.GetExtension(fileupload.FileName);
              if (filter == ".avi" || filter == ".3gp" || filter == ".mp4" || filter == ".swf" || filter == ".wmv" || filter == ".mp3")
              {
// Write ur code here!.
}
else{
//
}

Thank u.

Posted 20-Mar-14 1:10am

Murali0195

Comments

Indrojeet_Bhattacharya 20-Mar-14 14:10pm

Thanks for the help.

[no name] 21-Mar-14 0:36am

U are welcome!