Posts tagged ‘mp3’

Saw a few tweets by @lastraw today, asking Matt and others if they could make the Add Audio function in the WordPress editor work.

Well, @lastraw, the audio function does actually work, it just doesn’t do what you expect it to do.

Basically, the WordPress uploader does provide a few different kinds of uploader buttons: image, video, audio, and media. All of these buttons behave in different ways. The Audio button in particular lets you upload an audio file, and then insert a link to that file in your post.

WordPress upload buttons in the post editor

However, the link it inserts is just a bare link. This is because WordPress doesn’t come with a flash audio player, and HTML 5 hasn’t gotten standard enough to allow sane use of the <audio> tags.

Still, plugins can modify things to make audio files embed. I just wrote a quick plugin to take those bare audio links and turn them into embedded audio players using Google’s flash audio player. This is the same player they use on Google Voice and in several other locations in the Google-o-sphere.

Example:

Example Audio File

How did I do that? Easy, I activated my plugin, then used the Add Audio button to just insert the plain link to my audio file (which I uploaded). Naturally, this audio player will only show up on your site. People reading through an RSS reader or some other method won’t see it, they’ll just see the plain audio link and can download the file.

Couple limitations on this: It only handles MP3 formats. You could conceivably use a player that could handle more formats, I only made this as an example. MP3 is the most common format in use anyway, and I didn’t want to go searching for a more complicated player to use. Also, I made it only handle links on lines by themselves. If you put an audio link inline into a paragraph or something, it won’t convert it.

Here’s the plugin code if you want to use it or modify it or whatever. It’s not the best code in the world, but then it only took 5 minutes to create, so what do you expect? ;)

<?php
/*
Plugin Name: Google MP3 Player
Plugin URI: http://ottodestruct.com/
Description: Turn MP3 links into an embedded audio player
Author: Otto
Version: 1.0
Author URI: http://ottodestruct.com
*/

add_filter ( 'the_content', 'googlemp3_embed' );
function googlemp3_embed($text) {
	// change links created by the add audio link system
	$text = preg_replace_callback ('#^(<p>)?<a.*href=[\'"](http://.*/.*\.mp3)[\'"].*>.*</a>(</p>|<br />)?#im', 'googlemp3_callback', $text);

	return $text;
}

function googlemp3_callback($match) {
	// edit width and height here
	$width = 400;
	$height = 27;
	return "{$match[1]}
<embed src='http://www.google.com/reader/ui/3523697345-audio-player.swf' flashvars='audioUrl={$match[2]}' width='{$width}' height='{$height}' pluginspage='http://www.macromedia.com/go/getflashplayer'></embed><br />
<a href='{$match[2]}'>Download MP3 file</a>
{$match[3]}";
}

This is mainly intended as a demo. There’s more full featured plugins for this sort of thing in the plugins directory. If you need to embed audio, using one of them might be a better way to go.

Shortlink: