On Mon, 2008-09-29 at 20:53 +0200, Rene Veerman wrote:
> Hi, i have the following php statements;
>
> I'm wondering why exec()'s $output remains empty..
> Any help is greatly appreciated..
>
> <?php
> $cmd = 'nice -n 19 ffmpeg -i "'.$sourcePath.'"';
> exec ($cmd, $output, $result);
> return array (
> 'cmd' => $cmd,
> 'output' => $output,
> 'result' => $result
> );
>
>
> which when executed returns
>
> ["cmd"]=>string(128) "nice -n 19 ffmpeg -i "/data/web/secret/20080929
> 201651/work/MVI_1993.avi""
> ["output"]=>array(0) {
> }
> ["result"]=>int(1)
> }
>
> if i run the same "cmd" on the commandline, it nicely returns:
>
> FFmpeg version SVN-rUNKNOWN, Copyright (c) 2000-2004 Fabrice Bellard
> configuration: --enable-gpl --enable-pp --enable-pthreads
> --enable-vorbis --enable-libogg --enable-a52 --enable-dts
> --enable-libgsm --enable-mp3lame --enable-faad --enable-dc1394
> --disable-debug --enable-shared --prefix=/usr
> libavutil version: 0d.49.0.0
> libavcodec version: 0d.51.11.0
> libavformat version: 0d.50.5.0
> built on Sep 29 2008 18:43:44, gcc: 4.1.2 20061115 (prerelease)
> (Debian 4.1.1-21)
> Input #0, avi, from
> '/data/web/LIVE_WEBSITES/www/veerman.name/mediaBeez_content/media/upload/20080929
>
> 201651/work/MVI_1993.avi':
> Duration: 00:01:45.6, start: 0.000000, bitrate: 1746 kb/s
> Stream #0.0: Video: mjpeg, yuvj422p, 320x240, 15.00 fps(r)
> Stream #0.1: Audio: pcm_u8, 11024 Hz, mono, 88 kb/s
> Must supply at least one output file
>
>
>
You could do
$cmd = 'nice -n 19 ffmpeg -i "'.$sourcePath.'"';
$output = shell_exec($cmd);
Don't forget though, that as this is making PHP wait for output from the
shell, a lengthy shell process could mean the PHP script times out
(depending on your timing settings) and I think this will cause the exec
command to fail.
What you could consider is to execute a bash script that itself makes an
entry someplace, either through the command line PHP, command line SQL
or editing a file that PHP can look at later.
Ash
www.ashleysheridan.co.uk
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