> What about a tiny dsp chip for video decompressing ? i don"t know the > price, but HD decompression in a dedicated dsp should be much more > energy efficient than an codec on main cpu.
What DSP chip did you have in mind? I am not aware of any that can decompress 1080 mpeg2. Personally I could get by with mpeg2 but I know that a lot of people are going to want H.264, and that takes even more MIPS. You are correct that DSP takes less energy to decompress video than a CPU, and probably less than a ATI/Nvidia type GPU. There are some dedicated video decoding chips available. These can decode 1080 H.264, and at least one can encode as well. Power consumption is low, in the 1-3 Watt range. Prices range from reasonable to spendy. Even the spendy chips are less expensive than buying enough CPU. There has been some discussion of these chips (and DSPs) on the open-hardware-ethervideo list. This has been a very low volume list so far, I encourage anyone interested in video decoding to subscribe (and read the archives). There was also some discussion of using DSPs to decode video on the OGP list before the open-hardware-ethervideo list was created. (see the archives) _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
