[vamshi09]

hi

[SpiderSpartan]

you could try checking the file properties for this info. Otherwise I think you'd have to come up with some kind of crazy formulas to calculate the time based on the file size, video resolution and sound resolution. Not really sure, never tried it?

[Jayman]

[rules][/rules]

[kusumyadav]

jayman9, on 24 Jul, 2008 - 08:47 AM, said:

[rules][/rules]

i want to convert .flv file into .wmv, for that i am using a thrid party tool
"flash to video console". its a command line.
through my .net code i am initiating its exe.this tool needs the maxtime. for that i need to know the duartion of my flv file.can you please help me to get the duration of flash file.
i am attaching my code here :

Const g_strV2FPath As String = "C:\Program Files\VidFilters\Flash to Video Console\FVEConsole.exe"
Dim strSourceFile As String = "C:\Program Files\Adobe\Flash Media Server 3\applications\FlexWebCamCapture\streams\_definst_\CapturedVideoAudioFile.flv"
Dim Process As New System.Diagnostics.Process

Dim objPlayer As New WMPLib.WindowsMediaPlayer objPlayer.mediaCollection.add(strSourceFile)
objPlayer.currentMedia = objPlayer.mediaCollection.getAll
Dim sngDuration As Single = objPlayer.currentMedia.duration
Process.Start(g_strV2FPath, "-Input " + """" + strSourceFile + """" + " -Output " + """" + "E:\converted wmv\CapturedVideoAudioFile.wmv" + """" + " -MaxTime ""600""" + """" + "")

i am using windows media player but this code is throwing an error.

any help is appriciated

kusum

[Korupt]

you could add a timer to your form and then just make it start (on the button that your video is supposed to start) and display the time it's counting

and kusumyadav first of all your code is in VB not C# second of all this is not your topic make your own and ask for help don't hijack other peoples

[djkitt]

Here is a link to a codeproject post that will read the flv header file. You should be able to calculate the duration from this info.

http://www.codeproje...;select=2417085

Hope this helps,

Kitt

[hardimon]

How about using ffmpeg.exe as a process within your code?

using(Process ffmpeg = new Process())
{
	 String duration;  // soon will hold our video's duration in the form "HH:MM:SS.UU"
	 String result;  // temp variable holding a string representation of our video's duration
	 StreamReader errorreader;  // StringWriter to hold output from ffmpeg

	 // we want to execute the process without opening a shell
	 ffmpeg.StartInfo.UseShellExecute = false;
	 ffmpeg.StartInfo.ErrorDialog = false;

	 // redirect StandardError so we can parse it
	 // for some reason the output comes through over StandardError
	 ffmpeg.StartInfo.RedirectStandardError = true;

	 // set the file name of our process, including the full path
	 // (as well as quotes, as if you were calling it from the command-line)
	 ffmpeg.StartInfo.FileName = "[directory of ffmpeg.exe]\ffmpeg.exe";

	 // set the command-line arguments of our process, including full paths of any files
	 // (as well as quotes, as if you were passing these arguments on the command-line)
	 ffmpeg.StartInfo.Arguments = "-i [directory of video file]\video_file";

	 // start the process
	 ffmpeg.Start();

	 // now that the process is started, we can redirect output to the StreamReader we defined
	 errorreader = ffmpeg.StandardError;

	 // wait until ffmpeg comes back
	 ffmpeg.WaitForExit([time_to_wait_in_milliseconds]);

	 // read the output from ffmpeg, which for some reason is found in Process.StandardError
	 result = errorreader.ReadToEnd();

	 // a little convoluded, this string manipulation...
	 // working from the inside out, it:
	 // takes a substring of result, starting from the end of the "Duration: " label contained within,
	 // (execute "ffmpeg.exe -i somevideofile" on the command-line to verify for yourself that it is there)
	 // and going the full length of the timestamp.
	 // The resulting substring is of the form "HH:MM:SS.UU"

	 duration = result.Substring(result.IndexOf("Duration: ") + ("Duration: ").Length, ("00:00:00.00").Length);
}

Quick Edit:

you need to include System (of course...), System.Diagnostics (for Process support), and System.IO (for StreamReaders)

Quick Edit Again:

My fault, the Convert.ToDouble() doesn't change it into a double representing seconds xD. I was doing something else with that...

The conversion from HH:MM:SS to seconds is left as an exercise for the OP

I hope I'm not breaking the rules here. It looks like this topic was posted a long time ago, so I figured what the hey. If I'm in the wrong, someone let me know. I'm pretty new.

Hope that helps,
Stephen H

This post has been edited by hardimon: 26 October 2009 - 12:32 AM

[macosxnerd101]

I appreciate everyone's willingness to help, but please avoid necroposting in the future.