Attila Kinali wrote:
On Wed, 23 Jan 2008 12:16:40 -0700
James Richard Tyrer <[EMAIL PROTECTED]> wrote:
This would appear to be a motion compensation issue. IIUC, TI went
to hardware motion compensation for the TMS320DM6467.
Where do you see hardware motion compensation?
http://focus.ti.com/lit/ml/sprn249/sprn249.pdf
Ok. i didnt read the marketing blah.
The TMS320DM6467 looks to me just like a VLIW DSP combined with an
ARM chip and a lot of peripherial stuff. No fancy decoder unit.
Read more! It also includes
Dual Programmable High-Definition Video Image Co-Processor
(HDVICP) Engines
Video Data Conversion Engine (VDCE)
Horizontal and Vertical Downscaling
Chroma Conversion (4:2:2↔4:2:0)
Yes, but what does it do exactly? and how is it programmed?
These are the interesting questions. There is no real information
out there. The best thing i could find on the web was a video
on youtube!
Though, i actually dont want to know as i might be tainted
by that knowledge.
The full documentation isn't available. I would like to look at it too.
BTW: What is a hardware motion compensation for you? I ask because
the process of motion compensation is something that looks always
very similar, no matter how much you do in hardware.
Hardware motion compensation would be motion compensation done (or
partially done) by hardware dedicated to that use only.
Uhm.. i dont want to be picky, but do you count a general purpose
CPU as an hardware motion compensation unit, if it is dedicated
for that use only?
semantics issue. Dedicated hardware: Hardware that can only be used for
a specific purpose. A general purpose CPU plus firmware is not what I
would call dedicated hardware. Perhaps there is a better term for it,
but can't think of one right now.
For example: A general purpose CPU plus firmware can do color space
conversion. But, you can also have dedicated hardware consisting of
multipliers and adders that can only do that one thing.
--
JRT
_______________________________________________
Open-hardware mailing list
[email protected]
http://lists.duskglow.com/mailman/listinfo/open-hardware
