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  • Type 'FFProbe' is not defined

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    Share With Friends (Updated 6-8-2010)
  • Article ID:
    7283
  • Date Created
    Thursday, February 20, 2025
  • Last Updated
    Thursday, February 20, 2025
  • This Article Has been Viewed
    32 times
  • Short Desc
    Using the NReco.VideoInfo.dll on a website without a reference to the DLL library, you will receive Type 'FFProbe' is not defined.
  • Details
    When using Visual Studio, you add a reference to the NReco.VideoInfo.dll, which will add files to the /bin folder within your website directory. You can then make references to the Library using simple code like this.

     

    Dim theFilePath As File = File.Create("G:\WebSite1\01Fantasy.mp3")
    Dim ffprobe As New FFProbe
    Dim videoInfo = ffprobe.GetMediaInfo(theFilePath)
    Dim strArtist As String = videoInfo.FormatTags.Where(Function(t) t.Key = "artist").[Select](Function(t) t.Value).FirstOrDefault()
    LabelArtist.text = strArtist
  • Recreate Issue
    To Reproduce this issue.

    Using the code above that works within Visual Studio does not work in a website under IIS without referencing the DLL file within your project.
  • Resolve Issue
    There are two ways to perform this action.

    section 1: (With Visual Studio Installation)
    Using the Visual Basic Developer Command Prompt.
    Click on your [Start] Menu.
    Choose [Programs]
    Scroll down to the [Visual Studio 2022] (Or installed version)
    Choose [Developer Command Prompt for VS2022] (your Version number here)

    When the window opens, do the following commands.
     

    C:\Windows\system32>
    ::type in
    cd G:\ (Replacing the G with the drive you have your DLL files at)
    G:\>
    ::Copy and paste in
    cd G:\InetPub\wwwroot\MyWebSite\Upload\Bin\
    G:\InetPub\wwwroot\MyWebSite\Upload\Bin>gacutil -i NReco.VideoInfo.dll

    (Skip to section 3 once done.)

    section 2 (Microsoft SDK installation)
    View video here.)

    In the CMD (Windows Command Prompt)
    Type in the following to put yourself in the C Folder.
     

    cd\

    Then to navigate to Microsoft SDKs
     

    cd "Program Files (x86)\Microsoft SDKs\Windows\v10.0A\bin\NETFX 4.7.2 Tools"


    Next, type each line.
     

    gacutil -i G:\InetPub\wwwroot\MyWebSite\Upload\Bin\NReco.VideoInfo.dll

    (Skip to section 3 once done.)

    section 3
     
    gacutil -l NReco.VideoInfo

    If successful, you will receive this message.
     
    [Microsoft (R) .NET Global Assembly Cache Utility. Version 4.0.30319.0
    Copyright (c) Microsoft Corporation. All rights reserved.

    The Global Assembly Cache contains the following assemblies:
    NReco.VideoInfo, Version=1.2.0.0, Culture=neutral, PublicKeyToken=8f59ee36d2987295, processorArchitecture=MSIL

    Number of items = 1

    The above string you will need.
     

    >> NReco.VideoInfo, Version=1.2.0.0, Culture=neutral, PublicKeyToken=8f59ee36d2987295


    Next, place the code inside your web.config file.

     

    <?xml version="1.0"?>
    <configuration>
    <system.web>
    <compilation debug="true" strict="false" explicit="true" targetFramework="4.5">
    <assemblies>
    <add assembly="NReco.VideoInfo, Version=1.2.0.0, Culture=neutral, PublicKeyToken=8f59ee36d2987295"/>
    </assemblies>
    </compilation>
    </system.web>
    </configuration>


    how-to-get-your-publickeytoken«


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