HD DVD pushes Xbox 360 harder than games |
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Backwards compatibility: software instead of hardware. HD DVD is not "just DVD with HD content." Many HD DVD players out there have special hardware called DSP chips. From our understanding of the development team's news, the Xbox 360 doesn't have the DSPs needed. So how do you make the HD DVD that just came out compatible with the Xbox 360? With software.
This is a lot like how backwards compatibility for the Xbox 1 work on the Xbox 360.
What software? Oh, about 4.7 million lines of code. Video Codecs: H.264, MPEG-2, VC1. Audio Codecs: Dolby Digital+, DTS, TrueHD, LPCM, MPEG. HDi: The HD DVD runtime engine. Graphics Device Interface: Drawing menus, etc. AACS: Cryptography/DRM stuff. Media Foundation: Audio/Video pipeline.
As for codecs, well, Microsoft had a lot of PC codecs, but these had to optimized for the Xbox 360. By the way, the software decodes everything into Dolby, so don't panic if you keep seeing "Dolby Digital."
Bottom line. We leave you where we started (and the Gears of War console skin, in honor of the fact that the game sometimes pushes your 360 as hard as HD DVD):
All 6 of Xbox 360's hardware threads are hard at work while playing back an HD DVD. At the moment, the player software pushes Xbox 360 harder than any other (save, perhaps, Gears of War during some particularly busy parts of the game).
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Comments [refresh]
I heard that Gears drops to around 15-20FPS during those "busy parts" whats up with that? I'm still getting it though.
You know the 360 has alot of processor power. And since MS designed the video codes that HD-DVD uses its not really gonna be a problem for the 360 to play them. Ive heard lots of oh there doing the playback in software wow! stuff. But my pc plays dvds in software it plays 720p movies in software. Sure I have hardware acceleration. But so does the 360. Whats the big deal?
link please.