How do I output the duration and file size of a video utilizing ffmpeg?: cfoutput, ffmpeg, video, duration

How do I output the duration and file size of a video utilizing ffmpeg?

Hello Experts,

I'm using ffmpeg to convert a video file to FLV, but now I need to first check the file size and duration of the video before converting it, in order to set some limits. Below is the code that I'm using, but it's not working. Any help would be great!

Thanks,
Anthony

<cfexecute name = "c:\onestopdonate\videos\ffmpeg\ffmpeg.exe" arguments = "-i c:\onestopdonate\charityvideos\cause\temp\vid_CID20090908110839.avi"
timeout = "5" variable="x"> 
</cfexecute>
 
<cfdump var="#x#">

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<cfset video_file = "c:\onestopdonate\charityvideos\cause\temp\vid_CID20090908110839.avi"> <cfset ffmpeg_path = "c:\onestopdonate\videos\ffmpeg\ffmpeg.exe">  <cfset logfile = getdirectoryfrompath(ffmpeg_path) & getfilefrompath(video_file) & ".log"> <cfset request.err = false> <cfset video_filesize = "unknown"> <cfset video_duration = "unknown"> <cfif fileexists(video_file)>  <cftry> <cfdirectory action="list" directory="#getdirectoryfrompath(video_file)#" name="dirVideo" filter="#getfilefrompath(video_file)#"> <cfset video_filesize = dirVideo.size> <cfcatch> <cfdump var="#cfcatch#"> </cfcatch> </cftry>  <cftry> <cfset argString = '/c ' & ffmpeg_path & ' -i "' & video_file & '" 2>&1'>   <cfexecute name="c:\windows\system32\cmd.exe" arguments="#argString#" outputFile="#logfile#" timeout="5" /> <cfcatch> <cfset request.err = true> <cfdump var="#cfcatch#"> </cfcatch> </cftry> <cfif NOT request.err AND fileexists(logfile)> <cfloop file="#logfile#" index="line"> <cfset temp = listfirst(trim(line))> <cfif listfirst(temp, " ") is "Duration:"> <cfset video_duration = listlast(temp, " ")> <cfbreak> </cfif> </cfloop> </cfif> <cfoutput> video file size: #video_filesize#<br /> video duration: #video_duration# </cfoutput> </cfif>

and here's alternative code that does not write to a log file (see attached)

again, based on (another) post by cfsearching:
http://cfsearching.blogspot.com/2007/12/using-ffmpeg-to-convert-video-files-to.html

Azadi

<!--- function used to drain the input/output streams and return video duration --->
<!--- stick this at the very top of your page --->
<cffunction name="processStream" access="public" output="false" returntype="string">
	<cfargument name="in" type="any" required="true" hint="java.io.InputStream object">
	<cfscript>
	var reader = "";
	var buffered = "";
	var line = "";
	var temp = "";
	var duration = 'undefined';
	
	reader = createObject("java", "java.io.InputStreamReader").init(arguments.in);
	buffered = createObject("java", "java.io.BufferedReader").init(reader);
	line = buffered.readLine();
	while ( IsDefined("line") ) {
		temp = listfirst(trim(line));
		if (listfirst(temp, ' ') is 'Duration:') {
			duration = listlast(temp, " ");
			return duration;
		} else {
			line = buffered.readLine();
		}
	}    
	</cfscript>
	<cfreturn duration>
</cffunction>
 
<cfset video_file = "c:\onestopdonate\charityvideos\cause\temp\vid_CID20090908110839.avi">
<cfset ffmpeg_path = "c:\onestopdonate\videos\ffmpeg\ffmpeg.exe">
<cfset video_filesize = "unknown">
<cfset video_duration = "unknown">
 
<cfif fileexists(video_file)>
	<!--- get file size --->
	<cftry>
		<cfdirectory action="list" directory="#getdirectoryfrompath(video_file)#" name="dirVideo" filter="#getfilefrompath(video_file)#">
		<cfset video_filesize = dirVideo.size>
		<cfcatch>
			<cfdump var="#cfcatch#">
		</cfcatch>
	</cftry>
	<!--- get duration --->
	<cftry>
		<cfset runtime = createObject("java", "java.lang.Runtime").getRuntime()>
		<cfset command = '"#ffmpeg_path#" -i "#video_file#"'>
		<cfset process = runtime.exec(command)>
		<cfset video_duration = processStream(process.getErrorStream())>
		<cfcatch>
			<cfdump var="#cfcatch#">
		</cfcatch>
	</cftry>
	<cfoutput>
	video file size: #video_filesize#<br />
	video duration: #video_duration#
	</cfoutput>
</cfif>

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How do I output the duration and file size of a video utilizing ffmpeg?

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