From: ptkwt@... (Phil Tomson)
Date: 2003-11-23T06:22:16+09:00
Subject: Re: Ruby classes for MP3 de-/encoding

In article <20031122191549.GB3071@tachyon.bsdgeek.net>,
Dennis Oelkers  <dennis@sgi-powered.de> wrote:
>On Sun, Nov 23, 2003 at 04:03:55AM +0900, Matthew Berg wrote:
>> You can do metadata extraction with GStreamer as well, though the
>> bundled bindings for libgstmediainfo can be slow in certain
>> circumstances.  I have the extraction code I've been working on up here
>> though:
>> 
>> 	http://www.gothpoodle.com/~galt/info.rb
>> 
>> This should allow you to read id3 or ogg tags at minimum, and i think
>> wav riff headers though I haven't tested it on that yet.
>
>Thanks for all your help, but it seems as if you misunderstood my question
>a bit. I'm not looking for classes to extract metadata information, I want
>to encode/decode MP3 data.
>

I would think this would be very compute intensive (all those dicrete 
cosine transforms, which as I recall, are performed would take a lot of 
time in Ruby).  If you want to do this from Ruby, wouldn't it be best to 
find an already existing C library and wrap it to create an extension?

Phil