Comments on: How To: Convert audio to another format on a web page

By: Fareler

Fareler — Fri, 23 Oct 2009 05:48:11 +0000

Nice information.

By: metin

metin — Sun, 14 Dec 2008 18:53:00 +0000

thank you

By: sim

sim — Thu, 07 Aug 2008 23:21:20 +0000

forgot to mention
exec($encode_cmd, $output, $retval);

$retval will be 0 if command succeeds
$retval will be 1 (or some other integer) if command fails

$output will contain an array of the output from ffmpeg -as seen when accessing it directly from the command line

By: sim

sim — Thu, 07 Aug 2008 23:16:13 +0000

I was having trouble getting useful output from
exec($encode_cmd, $output, $retval);
$output always contained an empty array
then i discovered this snippet of BASH
2>&1
# Redirects stderr to stdout.
# Error messages get sent to same place as standard output.

if i use a command like
$encode_cmd =”ffmpeg -i test.mp3 test2.mp3 2>&1″;
exec($encode_cmd, $output, $retval);

then $array will contain all the output from ffmpeg

see http://tldp.org/HOWTO/Bash-Prog-Intro-HOWTO-3.html for more info

hope this helps someone

KUDOS to Aaron Gadberry for this very helpful webpage

By: gecko

gecko — Wed, 16 Jul 2008 15:06:34 +0000

forget the previous post, i managed to got it working:)
ill post here my solution, maybe will be helpful: try to use absolute path to the ffmpeg command, 4 xmpl: “$encode_cmd = “/usr/local/bin/ffmpeg…”
on my server this path is /usr/local/bin/ffmpeg…
this way i was able to do the converting.
many thanks!

By: gecko

gecko — Wed, 16 Jul 2008 14:36:25 +0000

hi all,
running a media-temple (dv) dedicated virtual server, with a full root-access. I installed the ffmpeg, and some codecs, etc. I can run the ffmpeg from bash, and it converts the requested wmv/avi/mpg to flv, but through php’s exec/shell_exec/passthru the same command doesnt want to work. No file is created in the given folder…
Safe_mode is off, no disabled functions, 777 permissions on the folders, but the file is not created…
Interesting thing that i can run a simple exec() like , this works…
any ideas?

By: kız oyunları

kız oyunları — Sat, 12 Apr 2008 09:42:54 +0000

hi there can sum one explain to me how i can just convert a video file WMV which is 75 megb to a 75mb avi file
i cant do this and it is piss taking plz help thnx agian:)

By: Dog B.

Dog B. — Wed, 02 Jan 2008 17:23:52 +0000

Passthru might work for output capturing in *nix env, but it does not work in Windows. I was thinking of using something like this to capture file info:
exec(“ffmpeg.exe -i… >tmp.txt”);
All of the output should be in tmp.txt. Open the tmp.txt file, parse it for data, and delete it. However, I wouldn’t do this if you are making the end-user wait for conversion to take place. It might take quite some time to get your results :)

By: bedava oyunlar

bedava oyunlar — Tue, 25 Dec 2007 20:02:05 +0000

Use passthru command

By: Zaman

Zaman — Thu, 06 Dec 2007 18:55:02 +0000

hi there can sum one explain to me how i can just convert a video file WMV which is 75 megb to a 75mb avi file
i cant do this and it is piss taking plz help thnx agian:)