I have started using ffmpeg and I am very new to it, so please bear with me.
I have installed ffmpeg on my server and it works great; I can run certain commands and get output data when logged in via ssh
For example I can run
ffmpeg -i Sleep\ Away.mp3
Which returns the following:
ffmpeg version 0.8.5, Copyright (c) 2000-2011 the FFmpeg developers
built on Aug 20 2012 09:28:43 with clang 3.1 (tags/Apple/clang-318.0.61)
configuration: --enable-nonfree --enable-gpl --enable-version3 --enable-postproc --enable-swscale --enable-avfilter --enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-libfaac --enable-libxvid --enable-libx264 --enable-libvpx --enable-hardcoded-tables --enable-shared --enable-pthreads --disable-indevs --cc=clang
libavutil 51. 9. 1 / 51. 9. 1
libavcodec 53. 7. 0 / 53. 7. 0
libavformat 53. 4. 0 / 53. 4. 0
libavdevice 53. 1. 1 / 53. 1. 1
libavfilter 2. 23. 0 / 2. 23. 0
libswscale 2. 0. 0 / 2. 0. 0
libpostproc 51. 2. 0 / 51. 2. 0
[mp3 @ 0x7f9694011a00] Header missing
Last message repeated 13 times
[mp3 @ 0x7f9694007c00] max_analyze_duration 5000000 reached at 5007020
[mp3 @ 0x7f9694007c00] Estimating duration from bitrate, this may be inaccurate
Input #0, mp3, from 'Sleep Away.mp3':
Metadata:
track : 3
album : Bob Acri
artist : Bob Acri
title : Sleep Away
genre : Jazz
album_artist : Bob Acri
composer : Robert R. Acri
date : 2004
Duration: 00:03:21.77, start: 0.000000, bitrate: 192 kb/s
Stream #0.0: Audio: mp3, 44100 Hz, stereo, s16, 192 kb/s
At least one output file must be specified
The question I am asking is, how can I use the output data above? I am developiong a music website; say I want to loop through all the MP3 files and save the info about them into a database, so that the above would result in:
Sleep Away.mp3 mp3 3:21 Jazz 2004 Bob Acri ...
obviously in a table
I have tried to use the php backtick operator with no success so far. I just thought I would put a question up here to get some advice from people that have done something similar.
Thanks
Update: I have tried the following
<?php $output = `ffmpeg -i Sleep\ Away.mp3`; echo "<pre>$output</pre>"; ?>
<?php $output = shell_exec('ffmpeg -i Sleep\ Away.mp3'); echo "<pre>$output</pre>"; ?>
both don't appear to return anything.
ffmpeg sends that information on standard error, and not to standard output which is what shell_exec() captures.
You need to add: 2>&1 at the end of your command:
$out = shell_exec('/path/to/ffmpeg -i Sleep\ Away.mp3 2>&1');