[Gllug] How does RhythmBox do it?

salsaman at xs4all.nl salsaman at xs4all.nl
Fri Jul 4 07:45:13 UTC 2008


On Thu, July 3, 2008 21:34, Andrew Farnsworth wrote:
> On Thu Jul  3 20:21 , John Winters <john at sinodun.org.uk> sent:
>>Andrew Farnsworth wrote:
>>> On Thu Jul  3 17:32 , John Winters john at sinodun.org.uk> sent:
>>>
>>>> I just used mplayer to suck a program off the Radio7 web site that I
>>>> wanted to listen to (Tony Hancock's "Blood Donor" episode).  I then
>>>> processed it again with mplayer to turn it into a .wav file and
>>>> processed that with oggenc to create a .ogg file.
>>>>
>>>> Then I opened it with RhythmBox to play it.  It all worked fine, but
>>>> the
>>>> bit I can't work out is how RhythmBox also managed to show me a
>>>> picture
>>>> of Tony Hancock - it looks like an album cover matching the recording.
>>>>
>>>> Do all these different formats include space for an image?
>>> John,
>>>   The formats do not contain space for an image, but they do
>>>   contain space for Album Name, Artist Name, etc and Rythymbox will
>>>   use that info to lookup and download the album art.
>>
>>Curiously, RhythmBox seems to have none of that information.  When it
>>opens the file it shows all of these as "Unknown", but it still has the
>>cover image.
>>
>>I'm not sure you have the correct explanation.
>
> John,
>   How very strange... I guess it could profile the song or possibly this
> information or something like it is stored someplace in the file, possibly
> a CDDB
> or FreeDB (?) reference id is stored.  Not sure what else it could be or
> even how
> as it was bounced through several difference programs... I wonder if there
> is a
> field for cover art URL in there someplace.
>
> Andy
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>


Amarok has a feature similar to this. It looks at the artist and album
name, and pulls the cover art from amazon.com.

mp3 has fields for artist, album, genre, etc. but wav does not, so
probably it is guessing from the file name.

Gabriel.


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