PHP FFMPEG

[wesleyw]

I've written a little program to automatic converting videos from a folder in linux using ffmpeg via shell_exec in php easy enough to do and worthwhile for the thousands of little clips I have I've got it to start the conversion in another process so as not to stall the php script until it's completed. However once it is completed I want another command to run (again in a separate process) and update a record in mysql.

 

The & symbol works well but when you have two commands in shell_exec you use a ; to show a new command has started and putting an & in between doesn't work it fails to run the command and after is too late as the second command would run in a separate process but not the first so it would still delay the PHP script.

 

Any ideas on how I could do this?

 

shell_exec("ffmpeg input.avi output.mp4; php -e 'aphpfile.php'");

 

Any thoughts?

 

I know I should be using escapeshellarg but this is only used by me at the moment.

 

Wes

Edited September 27, 2013 by wesleyw

[penfold_99]

When I have run two programs from the command line I have used &&

 

so try shell_exec("ffmpeg input.avi output.mp4 && php -e 'aphpfile.php'");

[wesleyw]

Haven't tried this yet but whilst searching for another way around this I found the following will work:

 

shell_exec("(ffmpeg input.avi output.mp4 && php -e 'aphpfile.php') > /dev/null 2> alogfile.log &");

 

The commands need to be encapsulated in parentheses and turning of stdin ">" and stderr "2>" to output to file also the & at the end will run it in a separate process.

 

So that looks like it has worked perfectly.

 

 

Wes

[SovietRussia]

Or just run a mysql_query after the shell_exec code?

[wesleyw]

As the shell_exec would be running in another process they would complete asynchronously so the MySQL statement would change the status of a record before the conversion completes.

 

Wes

[SovietRussia]

As the shell_exec would be running in another process they would complete asynchronously so the MySQL statement would change the status of a record before the conversion completes.

 

Wes

 

Sorry, I forgot about that!

 

You could just join the statements?

 

shell_exec([color=#800000]"[color=#333333][font=Verdana]ffmpeg input.avi output.mp4[/font][/color] > page.php 2>&1 &"[/color]);

Edited September 27, 2013 by SovietRussia