On Mon, Oct 03 2011, Lars Magne Ingebrigtsen wrote:

> There's probably no extremely compelling reasons to add built-in support
> for a real sound player in Emacs, but it might be kinda neat.  If you're
> in a dired buffer, you can hit RET to see images, but sound files aren't
> as available.  Wouldn't it be nice if you hit RET on an .mp3 file, and
> Emacs pops up a waveform buffer and starts playing the file?  And you
> can skip around in the song/podcast...
>
> Has anybody done any work in that direction?  And if not, would Emacs
> (after 24.1, or course) be open to adding such functionality if somebody
> (ahem) were to find the time to implement it?

I suggest to look at libcanberra or even GStreamer if you want really to
work on that. Not SDL.

-- 
Julien Danjou