Thursday, October 15, 2009

ASX playlists

If you tried watching Nasa TV in my last post with Silverlight, you'd find that it wouldn't work. And once again the problem is with the ASX file - to be more specific, the exact same problem I had to find a quick fix for last week for Moonlight.

The ASX file I linked to links to another ASX file. This second ASX file has a copyright symbol in it (©), and it stores it in the CP1252 code page (i.e. the binary value 0xA9 - this is an illegal value in utf8). Now it seems like Silverlight expects the file to be in utf8 [1], and it errors out if it isn't [2].

Unfortunately I can't link to the real mms link, Yahoo seems to uses some sort of authentication ensuring that you got the link from the ASX playlist.

I notified Yahoo using their contact form about this, asking them to fix their ASX output, now let's see what happens...

[1] When there are no byte-order markers at least
[2] Windows Media Player plays the ASX file just fine.

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