I kind of pieced together something that works.
I installed the ffmpeg binary directly to my xampp folder. However, on a secure server, you would probably not want it to be executing commands in this location.
I think I downloaded my exe from here...
Wherever you download ffmpeg from, the method below needs the ffmpeg.exe to point to.
Then in my PHP, I can call it like this...
exec(c:/xampp/ffmpeg/bin/ffmpeg.exe -i /xampp/htdocs/video/1/originals/omp_movie_test_sm.mpg -ar 22050 -ab 64k -f flv -s 330x248 /xampp/htdocs/video/1/converted/2.flv);
Lastly, this was a huge help to me. The previous reply from Milligan was removed, but here is much of what she had replied to me...
[BELOW IS FROM MULLIGAN REPLY WHICH WAS REMOVED]
To compile source files into Windows binary executable files you need to be familiar with this process and it requires you to have a compiler program installed on your PC - most don't.
For FFmpeg Win32 compilation, perhaps use MSYS and MINGW - ./configure, make, - from http://mingw.org
In XAMPP you will have more chance of Apache executing a binary file if it is contained in the \xampp\apache\bin directory.
However you can download a pre compiled Windows binary executable file from any of these links:
Other useful links (remember that FFmpeg is primarily for Linux breeds and so some of the links provided in this post may only relate to the Linux OS):
http://arrozcru.no-ip.org/ffmpeg_wiki/t ... page=Links
There is also a GUI for FFmpeg - download and info can be found here:
Here is a Google for ffmpeg php extension dll
Unpack the pre-compiled Windows binary ffmpeg.exe file into a directory called ffmpeg in your apache\bin directory.
Then configure your scripts - in Gallery2 for example - to know where the ffmpeg.exe file resides.
If writing your own PHP script, you will need to learn all about the exec() command, and any possible security issues, coupled with the commands for FFmpeg.
Using the apache\bin directory to exec() a binary file should eliminate any major security issues relating to your home server - executing a file outside this bin directory would no doubt be a security risk as this would mean that your server could execute any .exe file on your system with possible disastrous consequences.
An example bit of PHP code, which by the way may well be wrong in relation to the way PHP is implemented in XAMPP and has been amended by the mod in your thread, can be found here
http://www.phpbuilder.com/board/showthr ... t=10327812
// movie.avi.... name of the movie you want to take a screenshot from
// 00:00:00.... Where in the movie do you wanna take your screenshot, 10 seconds from start? ex: 00:00:10
// picname..... name your generated pic
exec("START c:/xampp/apache/bin/ffmpeg/ffmpeg -vcodec png -i movie.avi -ss 00:00:00 -vframes frames picname%d.png");
This command will not work if you installed XAMPP in a directory with a space in the name for example C:\Program Files\xampp
Always install XAMPP in the root of a drive - C:\xampp for example - and this problem will not exist now and in the future and Vista users should pay particular attention to this fact.