ASP.net FFMPEG视频转换接收错误：“错误号-2发生”

Question

我试图将FFMPEG集成到我的asp.net网站。我试图完成的过程是上传视频，检查它是.avi，.mov还是.wmv，然后使用x264将此视频转换为mp4，以便我的Flash播放器可以播放该视频。

我正在使用http处理程序（ashx）文件来处理我的上传。这也是我的转换代码。我不确定这是否是最好的地方，但我想看看我是否至少可以让它工作。

此外，我能够通过cmd行手动完成转换。当我从执行的过程输出标准错误时，出现错误-2。

这是我收到的错误：

的FFmpeg版本SVN-r23001，版权所有（C）2000-2010 FFmpeg的开发

建于2010年5月1日6时06分15秒用gcc 4.4 .2

配置：--enable-memalign-hack --cross-prefix = i686-mingw32- --cc = ccache-i686-mingw32-gcc -arch = i686 -target-os = mingw32 - enable-runtime-cpudetect --enable-avisynth --enable-gpl --enable-version3 --enable-bzlib --enable-libgsm --enable-libfaad --enable-pthreads --enable-libvorbis --enable-libtheor一个--enable-libspeex --enable-了libmp3lame --enable-libopenjpeg --enable-libxvid --enable-libschroedinger --enable-libx264 --enable-libopencore_amrwb --enable-libopencore_amrnb

libavutil 50.15。 0/50.15。 0 libavcodec 52.66。 0/52.66。 0 libavformat 52.61。 0/52.61。 0 libavdevice 52. 2.0/52. 2. libswscale 0.10。 0/0.10。 0

532010_Robotica_720.wmv：发生了错误数-2

这里是代码如下：

<%@ WebHandler Language="VB" Class="upload" %> 

进口系统 进口的System.Web 进口System.IO 进口System.Diagnostics程序 Imports System.Threading

公共类上传：实现IHttpHandler

Public currentTime As System.DateTime 

Public Sub ProcessRequest(ByVal context As HttpContext) Implements IHttpHandler.ProcessRequest 

    currentTime = System.DateTime.Now 

    If (Not context.Request.Files("Filedata") Is Nothing) Then 
     Dim file As HttpPostedFile : file = context.Request.Files("Filedata") 

     Dim targetDirectory As String : targetDirectory = HttpContext.Current.Server.MapPath(context.Request("folder")) 
     Dim targetFilePath As String : targetFilePath = Path.Combine(targetDirectory, currentTime.Month & currentTime.Day & currentTime.Year & "_" & file.FileName) 

     Dim fileNameArray As String() 
     fileNameArray = Split(file.FileName, ".") 

     If (System.IO.File.Exists(targetFilePath)) Then 
      System.IO.File.Delete(targetFilePath) 
     End If 

     file.SaveAs(targetFilePath) 

     Select Case fileNameArray(UBound(fileNameArray)) 
       Case "avi", "mov", "wmv" 
        Dim fileargs As String = 
        fileargs = "-y -i " & currentTime.Month & currentTime.Day & 
        currentTime.Year & "_" & file.FileName & " -ab 96k -vcodec libx264 
        -vpre normal -level 41 " 
        fileargs += "-crf 25 -bufsize 20000k -maxrate 25000k -g 250 -r 20 
        -s 900x506 -coder 1 -flags +loop " 
        fileargs += "-cmp +chroma -partitions +parti4x4+partp8x8+partb8x8 
        -subq 7 -me_range 16 -keyint_min 25 " 
        fileargs += "-sc_threshold 40 -i_qfactor 0.71 
        -rc_eq 'blurCplx^(1-qComp)' -bf 16 -b_strategy 1 -bidir_refine 1 " 
        fileargs += "-refs 6 -deblockalpha 0 -deblockbeta 0 -f mp4 " & 
        currentTime.Month & currentTime.Day & currentTime.Year & "_" & 
        file.FileName & ".mp4" 

        Dim proc As New Diagnostics.Process() 
        proc.StartInfo.FileName "ffmpeg.exe" 
        proc.StartInfo.Arguments = fileargs 
        proc.StartInfo.UseShellExecute = False 
        proc.StartInfo.CreateNoWindow = True 
        proc.StartInfo.RedirectStandardOutput = True 
        proc.StartInfo.RedirectStandardError = True 

        AddHandler proc.OutputDataReceived, AddressOf SaveTextToFile 

        proc.Start() 
        SaveTextToFile2(proc.StandardError.ReadToEnd()) 
        proc.WaitForExit() 
        proc.Close() 
      End Select 

      context.Response.Write("1") 

    End If 

End Sub 

Public ReadOnly Property IsReusable() As Boolean Implements IHttpHandler.IsReusable 
    Get 
     Return False 
    End Get 
End Property 

Private Shared Sub SaveTextToFile(ByVal sendingProcess As Object, ByVal strData As DataReceivedEventArgs) 

    Dim FullPath As String = "text.txt" 
    Dim Contents As String = "" 

    Dim objReader As StreamWriter 
    objReader = New StreamWriter(FullPath) 

    If Not String.IsNullOrEmpty(strData.Data) Then 
     objReader.Write(Environment.NewLine + strData.Data) 
    End If 

    objReader.Close() 

End Sub 

Private Sub SaveTextToFile2(ByVal strData As String) 

    Dim FullPath As String = "texterror.txt" 
    Dim Contents As String = "" 

    Dim objReader As StreamWriter 
    objReader = New StreamWriter(FullPath) 

    objReader.Write(Environment.NewLine + strData) 

    objReader.Close() 

End Sub 

末级

Answer 1

这个问题是关于对ffmpeg的应用程序本身的权限。一旦我更新权限，错误消失。