Matthias Schniedermeyer wrote: > Video is inherently bandwith intensive. > At least (for PAL): > 720x576x4x25 = about 40MB/s (*) > 1920x1080x4x25 = about 200MB/s > > And that's taking aside ANY of the other processing. Decoding, IDCT, > YUV->RGB transformation and so on. Also taking aside the total bandwith > killer, when you have to scale the material. > > AFAICT the vector cores COULD(*2) help you with the first parts, but the > rest has to be done by the 3(,?)Ghz RISC PPC-CPU and shoveling that much > data back and forth may be a bit much, without any acceleration. > But on the other side the PS3 systems is supposed to have an impressing > memory-bandwith, which could rescue the day. > > So unless someone tries there is no way to be sure, but for the time > beeing i'm sceptical. > > IOW: > - SDTV maybe > - HDTV no way without acceleration > > > > *: > x4 isn't a typo. Most systems use 32 bit per color. 24 bit "packed" > format isn't used anymore AFAIK. > > *2: > If you have software that can use the SPUs, but unless someone writes a > Decoder-Library with SPU support you can only use the Main-CPU. > > > Bis denn > > Most people AFAICT use vdr for sdtv and while HDTV may or may not be out of the question due to bandwidth sdtv definitely isn't. In fact I have linux on my xbox which has much less bandwidth than even the ps2 and most distros for that have a dvd player. I am actually looking into a building a working dtv rig for the (original) xbox but am much more limited by the "mere" 60mb (64mb-4mb for the framebuffer) of memory and others have made mythtv clients for it. As someone else pointed out though a PS3 for linux doesn't make much sense unless you already want a PS3. Any applications it runs will, due to the 88mb ram, probably *feel* slower than a 1-2ghz pc with 128mb+ of ram running an quivalent distro even without graphics accelleration. Btw here is a website that shows what the ps3 linux can access of the ps3's hardware. http://www.terrasoftsolutions.com/support/hardware/breakdown/index.php?hw_cat_id=15
