Brian Nickel’s Online Journal

If you don’t C# you’ll B♭

TagLib#: Special thanks to the people at #theora

Posted by Brian on April 4, 2007

I’ve made a bit of progress:

$ mono ReadFromUri.exe ~/Downloads/mac_pc_linux_2.OGG
/home/brian/Downloads/mac_pc_linux_2.OGG
Audio
Video
Title:
Artists:
Performers:
Composers:
Album:
Comment:
Genres:
Year:       0
Track:      0
TrackCount: 0
Disc:       0
DiscCount:  0
Lyrics:

Audio Properties
Bitrate:    56
SampleRate: 22050
Channels:   2

Video Properties
Width:      320
Height:     240

Length:     00:00:41.8750000

Embedded Pictures: 0

---------------------------------------

Total running time:    00:00:00.2400040
Total files read:      1
Average time per file: 00:00:00.2400040

The original file ended with a Vorbis page, which is easy to read, so I corrupted it and got duration parsing from a final Theora header (with some great help from the people at #theora on freenode).

The main problem now is: How do I update the tags. I’m going to have to look at the TagLib implementation more thoroughly, but at this point I’m scratching my head. Should I extract all the packets from the first page containing comment data to the last, then generate my own pages? It’ll probably take me a couple days to figure this out.

And then… M4V, MPEG (Just stick a ID3v2.4 on the end?), AVI, and I’m done! With all this change, I think this’ll be 2.0.


Leave a Reply

XHTML: You can use these tags: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <pre> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>