Colin Guthrie wrote:
'Twas brillig, and Rene Veerman at 10/12/08 23:03 did gyre and gimble:
Well, nowhere can i find the frame count being printed, but there
_is_ a duration: hh:mm:ss:ms field outputted, and the updating line
displays a time=seconds.ms (the time in the movie where the encoder
is at).
The question remains how to get at that updating output, with exec()
you get the output after it's done completely.
And there's no way to do partial conversions with ffmpeg, it's all in
one or nothing..
IIRC you can use popen and just read the output into PHP.
http://uk.php.net/manual/en/function.popen.php
That said, if I were you I'd do this system slightly differently. I'd
do the submissions via the web, but then do the encoding as a kind of
daemon process/cron job that runs on the server. This cron job would
do the encoding and update a db table periodically with progress. That
way you can have a page the user goes to that sees their "job progress".
This way the user's browser will not time out and you wont use up
apache connections waiting for encodings and also you wont kill your
server by performing multiple encodes at the same time - with the cron
job/daemon approach you can control how many jobs are performed at the
same time and thus limit the load.
Just some thoughts.
Col
Yep, this is already how it works.. Cron calls a php controller daemon
script (if it aint runnin yet), which reads the various open tasks, and
executes one task step (convert & import a single media file) at a time
for each open task.
It terminates after no more tasks have steps to do.
The scripts executing the task update a status JSON file in the tasks'
working directory, which is the only thing being read by the browser
after it's kicked off the import process by calling the daemon server
with the list of files to import.
i've taken a look at popen() and think i can indeed get it to work with
that..
i'll let you all know in this thread where to view a demo, when it works :)
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