Re: [Open-graphics] decoding video in real-time

[James Richard Tyrer]

Dieter wrote:
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=1857&familyId=749

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.

There are faster Ti DSPs.  Actually, that chip is faster than the one 
benchmarked.

http://focus.ti.com/docs/prod/folders/print/tms320c6454.html

http://focus.ti.com/docs/prod/folders/print/tms320c6455.html

However, I can't seem to find any information on whether or not they 
will do H.264 HiP 1080p.  And, they appear to be too expensive.

--
JRT
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