FFmpeg converting to flv but with 0 file size

[HemZone]

I'm having problems regarding conversion of video to flv format. Below is my command

 

for conversion, but it seems to convert the video to flv but the file size remains 0

 

KB, what could be the problem, please suggest.

 

My command:

 

$command =$ffmpegPath . " -i " . $srcFile . " -ar " . $srcAR . " -ab " . $srcAB . "

 

-f flv -s " . $srcWidth . "x" . $srcHeight . " " . $destFile . " | " . $flvtool2Path

 

. " -U stdin " . $destFile;

 

Please Help me ASAP. It's urgent

 

Thanks in advance

 

Regards

Hem

[The Little Guy]

I assume you are using exec() I have had issues with that for FFMpeg, switching to shell_exec() fixed the issue for me. I also recommend putting apostrophes around the file names, as a file/path with a space in it will not work.

 

Another thing to do, is echo out the string and see if it is correct (paste it into a new reply).