[opendtv] Re: USDTV switching to MPEG4

  • From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
  • To: <opendtv@xxxxxxxxxxxxx>
  • Date: Thu, 20 Apr 2006 15:35:04 -0400

Dale Kelly wrote:

> USDTV Switching to MPEG-4 AVC Compression

By means of a USB plug-in device, added to USDTV STBs, which transcodes
the incoming AVC into MPEG-2 H.262 compression, which is then processed
by the existing STB MPEG decoder.

Interesting approach. Not a software upgrade to the old STB, as I had
expected. This approach resolves the processing power shortcomings of
older MPEG decoders by adding an outboard co-processor, essentially,
rather than hope the old processor had enough umph to handle AVC.

The MPEG decoder will suddenly be presented with about twice as many
subchannels as it thought were possible.

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