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Xbox 360 HD-DVD Drive A Huge Software Undertaking

Interesting post from the Xbox Team explaining the huge undertaking it took to write the code for the Xbox 360’s HD-DVD drive. They did most of the work in software decoding, not hardware, letting the 360’s powerful processor do the heavy lifting, and wound up with 4.7 million lines of code and the most resource heavy 360 application ever (”save, perhaps, Gears of War during some particularly busy parts of the game”).

Here are the components involved:

  • Video Codecs: H.264, MPEG-2, VC1
  • Audio Codecs: Dolby Digital+, DTS, TrueHD, LPCM, MPEG
  • HDi: The HD DVD runtime engine.
  • GDI: Drawing stuff like menus
  • AACS: Cryptography/DRM stuff
  • MF: Audio/Video pipeline

Hmm… So when are they going to build the other codecs users want in the 360, like DivX?

November 6th, 2006 Posted by Nathan Weinberg | Xbox 360, Xbox, General | no comments

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