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, 9 Jul 2008 CPOL
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This piece of code will show you to convert any video file format to high quality flv and stream it on web server


Many of us have seen that, package like FFMPEG is quite hectic to use in our web application. Many of us have already opt different modules like Media Handler etc. to convert their video files to flv and stream it over the server.

This module will help you to convert your video files to flv which can easily stream on the server. Moreover you can can get high quality flv using this code.


The very basic idea behind this article is to use the FFMPEG command line argument to fulfill the requirement. All other popular modules available in the internet are based on those command lines which you can use directly to achieve your goal.

Using the code

Here is the website which I tried to develop. Its still under construction. So some bugs you may find over there. But the conversion portion is working fine.

[Sorry I have to close the link as some spamming is done in my server to this application. If anyone is interested then please contact me in my EMail id, I will help him/her as far as I can]

here are the steps...

Step - 1

Just download FFMPEG module from the internet. The latest version of FFMPEG will be a zip file which contains all the source code, FFMPEG.exe, FLVTOOL.exe and more. Extract those files into your application directory. FFMPEG.exe basically convert the video files into flv and FLVTOOL insert the metadata to the flv files. So that the video files will have all the video information.Without the metadata the video files won't be able to stream properly.

Step -2

Assign the exepath and directories.

        AppPath = Request.PhysicalApplicationPath 'Get the application path
        inputPath = AppPath & "videos\org_video" 'Path of the original file
        outputPath = AppPath & "videos\conv_video" 'Path of the converted file
        imgpath = AppPath & "videos\thumbs" 'Path of the generated thumanails
        prevpath = AppPath & "videos\preview" 'Path of the preview file

Now the main thing is the command line that executes ffmpeg.exe on the server...

string cmd as string = " -i """ & newPath & """ """ & outputPath & "\" & out & 
"""" '-i specifies the input file

Here newpath is the path of the source video file, outputpath is path of the converted video and out is the filename.

The above command line will convert the video into flv format. Now if you like to get high quality flv then use the following code..

Dim fileargs As String = "-i " & newPath & " -acodec mp3 -ab 64k -ac 2 
-ar 44100 -f flv -deinterlace -nr 500 -croptop 4 -cropbottom 8 -cropleft 
8 -cropright 8 -s 640x480 -aspect 4:3 -r 25 -b 650k -me_range 25 -i_qfactor 
0.71 -g 500 " & outputPath & "\" & out & ""
The above code will generate high quality flv. Now to insert metadata into those generated flv file use the following command line
Dim filebuffer As String = "-U """ & outputPath & "\" & out & """"
To create thumbnail use the following code....
Dim imgargs As String = " -i """ & newPath & """ -f image2 -ss 1 -vframes 1 -s 
80x60 -an """ & imgpath & "\" & thumbnm & """"
-i = input file -f = file format -vframe = video frame -s = size

Now create a function which can execute those command line

       Dim proc As New System.Diagnostics.Process()
        proc.StartInfo.FileName = exepath 
'Path of exe that will be executed, only for "filebuffer" it will be "flvtool2.exe"
        proc.StartInfo.Arguments = cmd 'The command which will be executed
        proc.StartInfo.UseShellExecute = False
        proc.StartInfo.CreateNoWindow = True
        proc.StartInfo.RedirectStandardOutput = False
Step - 3

The above code will convert any kind of video into FLV now the only thing you have to do is to stream the video using any flash video player.

Points of Interest

You can easily develop any streaming video application using this code and easily build a site like youtube or sharkle. For any kind of help feel free to mail me at


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

Web Developer
India India
No Biography provided

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Comments and Discussions

QuestionSource code written in C# Pin
naveen Tiwari Ji8-Sep-15 3:23
professionalnaveen Tiwari Ji8-Sep-15 3:23 
GeneralMy vote of 1 Pin
ramana40719-Feb-14 21:04
memberramana40719-Feb-14 21:04 
GeneralMy vote of 2 Pin
ramana40719-Feb-14 21:01
memberramana40719-Feb-14 21:01 
QuestionCan't get it to work with file upload Pin
PorkyGimp21-Feb-12 21:42
memberPorkyGimp21-Feb-12 21:42 
AnswerRe: Can't get it to work with file upload Pin
arinhere30-Jan-13 21:23
memberarinhere30-Jan-13 21:23 
QuestionWill this work for concurrency users Pin
Manjunatht@excel17-Jan-12 23:22
memberManjunatht@excel17-Jan-12 23:22 
AnswerRe: Will this work for concurrency users Pin
arinhere30-Jan-13 21:20
memberarinhere30-Jan-13 21:20 
QuestionFFMPEG using ASP.NET with C# Pin
divydivy4-Dec-11 21:56
memberdivydivy4-Dec-11 21:56 
AnswerRe: FFMPEG using ASP.NET with C# Pin
arinhere4-Dec-11 22:07
memberarinhere4-Dec-11 22:07 
GeneralMy vote of 5 Pin
divydivy4-Dec-11 21:48
memberdivydivy4-Dec-11 21:48 
QuestionASPX source for Grab thumbnail Pin
Nabbie22-Jun-11 0:10
memberNabbie22-Jun-11 0:10 
AnswerRe: ASPX source for Grab thumbnail Pin
arinhere4-Dec-11 22:09
memberarinhere4-Dec-11 22:09 
GeneralSource Code Plz Pin
Chetan Chaudhari19-Apr-11 3:54
memberChetan Chaudhari19-Apr-11 3:54 
Generalsource code Pin
yusufseyrek3-Jan-11 13:25
memberyusufseyrek3-Jan-11 13:25 
GeneralSource please Pin
zerataul8-Sep-10 23:52
memberzerataul8-Sep-10 23:52 
Generalc# code Pin
niravsahayata9-Jun-10 22:47
memberniravsahayata9-Jun-10 22:47 
GeneralPlease send me Code Pin
Revanth Arji4-Apr-10 20:46
memberRevanth Arji4-Apr-10 20:46 
GeneralI want a take a SNAP of video file at a time of Update video file. Pin
humill_MCA19-Feb-10 19:38
memberhumill_MCA19-Feb-10 19:38 
GeneralRe: I want a take a SNAP of video file at a time of Update video file. Pin
arinhere30-Jan-13 21:25
memberarinhere30-Jan-13 21:25 
GeneralCreate Image from flash file Pin
Shyju.K4-Aug-09 21:44
memberShyju.K4-Aug-09 21:44 
GeneralRe: Create Image from flash file Pin
arinhere4-Aug-09 22:05
memberarinhere4-Aug-09 22:05 
GeneralWorking project with realtime video conversion and Image generation Pin
Member 452158613-May-09 3:48
memberMember 452158613-May-09 3:48 
GeneralRe: Working project with realtime video conversion and Image generation Pin
Member 308579011-Aug-09 0:44
memberMember 308579011-Aug-09 0:44 
QuestionC# Code Pin
ramyamr14-Dec-08 22:50
memberramyamr14-Dec-08 22:50 
AnswerRe: C# Code Pin
arinhere29-Dec-08 2:39
memberarinhere29-Dec-08 2:39 

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