If you want to use TI chip, you should look at chip for phone.  I work
on 3430. This is a ~20$ chip with a Cortex A8 at 500 Mhz and 2 dsp C64
at ~300Mhz use for H264 ( for a phone...) and a  small 3D engine.

http://focus.ti.com/general/docs/wtbu/wtbuproductcontent.tsp?templateId=6123&navigatio...

2007/2/20, Dieter <netbsd@sopwith.solgatos.com>:
quoted text
> > > The only solution is a hardware accelerator.  IIUC, TI does currently
> > > sell a DSP that will do it.  Specifically one of the TMS320C64x line
> > > that runs at at least 600MHz.
> > >
> > This appears to be new and designed for this specific purpose:
> >
> > http://www.ti.com/lit/gpn/tms320dm642
> >
> > There are others in that family:
> >
> > http://focus.ti.com/paramsearch/docs/parametricsearch.tsp?family=dsp&sectionId=2&tabId...
>
> http://focus.ti.com/docs/prod/folders/print/tms320dm642.html
> click on benchmarks, which is
> http://www-s.ti.com/sc/techlit/sprt379
>
> says that the TMS320DM6446 only does 720p for mpeg2 amd mpeg4, and only
> 720x480 for H.264.  I don't see a bitrate listed.  The bitrate makes a
> lot of difference.
>
> Am I looking at the correct benchmark pdf for the fastest chip?
> (I'm not sure what the difference is between the dm642 and the DM6446 ?)
> Am I misreading something?  Or otherwise missing something?
>
> If there is a faster version that can decode 1080p, it might be a very
> good solution.
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