Hi,

On Sunday 03 April 2011 18:35:15 Denis Oliver Kropp wrote:
[...]
> > while streaming some videos on my laptop, I decided to add a mplayer
> > video- output module to display the video on my TV screen using
> > jointspace DirectFB API.
> 
> Nice idea. Did you try the standard DirectFB backend in mplayer, maybe it
> works via Voodoo (as most other examples). Just specify the remote=<host>
> option, but you need a recent DirectFB version with 32bit message serials
> (1.5.0) or the custom jointSPACE DirectFB 1.4.1 version.

for now, I took the custom jointSPACE DirectFB version. My first approach
was to make the mplayer standard DFB backend use jointspace DirectFB.
But this didn't work because some stuff (enumerators etc.) is not
implemented - so I ended up in carving out non-functional stuff...

The plan was have a separate backend for jointspace.

But with 1.5.0 I might give it a try again - thanks for pointing
this out - would be much better to reuse existing stuff.

[...]
> > using the YUV12 pixel format and expected to simply copy data. Maybe
> > some of you know how to solve that issue or can direct me to a good
> > tutorial.
> 
> AFAIK YUV to RGB conversion is not done in hardware on TV side, but I could
> be wrong.

No - I'm afraid you're right. But why is it possible to create a window
supporting YUV? I would expect the "CreateWindow" function to fail.

> Best is to create an RGB16 window surface and convert the data on PC side.
> 
> > I know that the bandwidth is not the best for streaming videos, but as I
> > got that far, I want to finish this small "project".
> 
> The latest Voodoo library supports transparent protocol compression which is
> already quite good even for RGB data (using fastlz realtime compression).

Sounds good - I guess this is something they might need, even
for displaying desktop surfaces or pictures on the TV screen...

> But it's not in a TV software release so far.

Good point - maybe Philips is willing to add this to one of their
numerous "updates" ;)

> > Any pointer to a demo or help on that "formatting" issue would be great.
> 
> Rather look for YUV to RGB (16 bit RGB 565) conversion.

Okay - will do so.
Thanks,
 Gerhard





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