debian 5, apache2, ffmpeg and php

Alt-Ox · 08-04-2009, 01:56 AM

Hello,

I´ve ffmpeg installed and running fine on debian 5, but I need to run ffmpeg via PHP.

with phpinfo() I have:

Quote:

Variable Value
APACHE_PID_FILE /var/run/apache2.pid
APACHE_RUN_USER www-data
PATH /usr/local/bin:/usr/bin:/bin
PWD /usr/src/ffmpeg-0.5
APACHE_RUN_GROUP www-data
LANG C
SHLVL 1
_ /usr/sbin/apache2

on php.ini I´ve included

Quote:

extension=ffmpeg.so

But I´m still receiving the message:

Quote:

Unable to load dynamic library '/usr/lib/php5/modules/ffmpeg.so'- /usr/local/lib/libavcodec.so.52: undefined symbol: av_gcd
Can't load extension ffmpeg.so

The main code I`m using is

Quote:

$extension = "php_ffmpeg";
$extension_soname = 'ffmpeg.so';

if (!extension_loaded($extension)) {
dl($extension_soname) or die("Can't load extension $extension_soname\n");
}

Then I tried using just the command which works on the shell:

Quote:

<?php
exec("/usr/local/bin/ffmpeg -i test.avi -ab 56 -ar 22050 -s 320x240 test.flv");
?>

but nothing happens, no flv file is created on the current directory

does anyone have an idea on how configure ffmpeg with apache/php?

bathory · 08-04-2009, 07:38 AM

It looks like you need to install ffmpeg-php. You can try to use the debian package first and if that doesn't work try to compile the sources. Everything is documented in the project's page.

Regards

Alt-Ox · 08-04-2009, 10:27 AM

I did install it
Also included the extension ffmpeg.so into php.ini

bathory · 08-04-2009, 10:53 AM

Doing a little search, I guess (since ubuntu is debian based), that you have to follow the suggestion in this post and compile ffmpeg from the latest sources.

Alt-Ox · 08-04-2009, 11:14 AM

thanks man
I had already tried this one, actually tried a lot of google's results.. but no success.

This is what I got on phpinfo()

Environment
Variable Value
APACHE_PID_FILE /var/run/apache2.pid
APACHE_RUN_USER www-data
PATH /usr/local/bin:/usr/bin:/bin
PWD /usr/src/ffmpeg-php-0.6.0
APACHE_RUN_GROUP www-data
LANG C
SHLVL 1
_ /usr/sbin/apache2

it seems ffmpeg-php is installed

bathory · 08-04-2009, 04:33 PM

It's not installed. If it was you should have:

Quote:

php -i|grep ffmpeg
ffmpeg
ffmpeg-php version => 0.6.0-svn
ffmpeg-php built on => Aug 5 2009 00:07:49
ffmpeg-php gd support => enabled
ffmpeg libavcodec version => Lavc52.32.0
ffmpeg libavformat version => Lavf52.37.0
ffmpeg swscaler version => SwS0.7.1
ffmpeg.allow_persistent => 0 => 0
ffmpeg.show_warnings => 0 => 0

This is because of the "undefined symbol" error.
I have just installed ffmpeg-php from source for testing:
1st: I had to get and compile the latest ffmpeg source from svn as per the ubuntu link, along with some missing dependencies (faac, faad2).
2nd: I downloaded ffmpeg-php-0.6.0, but I got a compile error. After searching I found that due to an error in ffmpeg_frame.c the following needs to be run before compiling:

Code:

sed -i 's/PIX_FMT_RGBA32/PIX_FMT_RGB32/g' ffmpeg_frame.c

You have to run the above from inside the ffmpeg-php source tree.
3rd. Add manually "extension=ffmpeg.so" and define "extension_dir = "/usr/local/lib/php/extensions/no-debug-zts-20090626" in php.ini (of course the extensions dir may vary in your case)
After restarting apache, I've tested your code and it worked.