I see. Do you want the form processing action to simply wait until the file 
is processed before doing the insert and returning? In that case, you might 
use this approach: 
http://web2py.com/books/default/chapter/29/7#SQLFORM-without-database-IO?

def index():
    upload_form = SQLFORM(db.encodeupload)
    if  upload_form.validate():
        [while loop checking to see if file encoding is complete]
        db.encodeupload.insert(**form.vars)
    [rest of code]

Anthony

On Wednesday, June 13, 2012 11:24:09 PM UTC-4, Charles Tang wrote:
>
> I did some hacking in the copystream in gluon/main.py and begin encoding 
> with ffmpeg from the temporary file onece it detect video upload is happen.
>

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