Re: Issue with Video rendering capabilities.

You played some high-quality wmv on your platform and the experience didn't
meet your requirements, so you determined there were two problems:

1. hard disk read latency
2. performance wrt rendering to the display

Did you do some testing to narrow it down to these two issues, or is that an
educated guess? If you're sure these are the problems, then your solutions
would certainly yield benefits. But you'll want to be sure you're
addressing the right problems.

I'll have to look for technical articles; I don't know of anything off hand.
But for your HW decoder I suspect you'll want to write or acquire a DShow
Filter or a DMO that fits into the DShow filter graph and communicates down
to the hardware. And the display accelerators would go into the display
driver.

Have you confirmed that DMA is enabled for the hard drive? Also which
version of CE is this?
--
damonb@xxxxxxxxxxxxxxxxxxxx (Remove the 'online.' from my address to reach
me.)

This posting is provided "AS IS" with no warranties, and confers no rights.
______________________________

The Windows CE .NET documentation is online at:
http://msdn.microsoft.com/library/en-us/wceintro5/html/wce50oriWelcomeToWindowsCE.asp?frame=true


"Jegan" <Jegan@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:A1E53883-257B-48F0-B099-BE0EC66D347D@xxxxxxxxxxxxxxxx
> Hi,
>
> We have an requirement to play DVD quality video content (wmv) in xScale
> PXA263 processor with QVGA LCD display. We aren't very satisfied with the
> performance. This WMV exist in a PCMCIA based 5GB hard disk. we are
> looking
> at enhancing the performace by
>
> 1.) Adding MPG or WMV hardware decoder (Like intel G2700 etc.)
> 2.) Adding display hardware accelerators (bit blt acceleration).
>
> This changed solution looks promizing to us, what is your take on this
> issue?
>
> How to make WMP to use MPG or WMV hardware decoding instead of using
> software decoderds? And Point to good technical articles and/or sample
> code
> that talk about this feature?
>
> Data transfer between the hard disk and system memory is also a concern
> and
> any suggestion in this area will also be useful.
>
> Regards,
> Jegan


.

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