ASP.net FFMPEG video conversion receiving error: "Error number -2 occurred"
- by Pete
Hello,
I am attempting to integrate FFMPEG into my asp.net website. The process I am trying to complete is to upload a video, check if it is .avi, .mov, or .wmv and then convert this video into an mp4 using x264 so my flash player can play it.
I am using an http handler (ashx) file to handle my upload. This is where I am also putting my conversion code. I am not sure if this is the best place to put it, but I wanted to see if i could at least get it working.
Additionally, I was able to complete the conversion manually through cmd line. The error -2 comes up when i output the standard error from the process I executed.
This is the error i receive:
FFmpeg version SVN-r23001, Copyright (c) 2000-2010 the FFmpeg developers
built on May 1 2010 06:06:15 with gcc 4.4.2
configuration: --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-libtheora --enable-libspeex --enable-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. 0
libswscale 0.10. 0 / 0.10. 0
532010_Robotica_720.wmv: Error number -2 occurred
here is the code below:
<%@ WebHandler Language="VB" Class="upload" %>
Imports System
Imports System.Web
Imports System.IO
Imports System.Diagnostics
Imports System.Threading
Public Class upload : Implements 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
Catch ex As System.IO.IOException
Thread.Sleep(2000)
GoTo Conversion
Finally
context.Response.Write("1")
End Try
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
End Class
