On Thursday 17 April 2008, Sean Dague wrote: > On Thu, Apr 17, 2008 at 08:38:11AM -0400, Jay Gagnon wrote:
> > They don't support Ogg because it's more CPU-intensive to decode and > > would have dropped battery life below acceptable thresholds. But thanks > > for that helpful contribution to solving John's problem. > > Typically that's only true because vendors put mp3 decoding into a > hardware chip, and retrofit ogg as software only. xiph.org provides > free hardware designs for ogg chips as well. In terms of pure software codecs I have heard that OGG playback is slightly more CPU intensive; however the tiny (outdated) portable media player I have from Cowon America supports OGG playback and yet sports a 40-hour battery lifetime on a single AA battery. I haven't specifically tested the battery life for MP3 vs OGG playback, because as much as I use it the battery lasts for weeks. The bottom line is that saying that the iPod doesn't support OGG because it's CPU intensive is just plain bunk; the iPod has far more CPU power than this little thing I have does, as well as having a much larger battery. The suspicion I've read online that seems most likely the reason that OGG support isn't shipped with devices is that OGG doesn't support the use of DRM, and DRM was part of Apple's overall iTunes plan. -- Chris -- Chris Knadle [EMAIL PROTECTED]
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