Last time I tried it you can run the demos to output any resolution less
than D1 (at multiples of 16). So you could say:
encodedecode -r 640x480
without any modifications. All this does is crop the input and center
the image in the D1 frame. Since the output is NTSC its the same as D1.
Is your output display NTSC? If so, the output side should just work.
Also is there a reason you needed an external chip for your rgb data?
Davinci VPFE's are more than capable of manipulating input frames (such
as converting to yuv and cropping).
Steve
bj wrote:
> All,
>
> I'm currently trying to get the demos (either decode or encodedecode
> from dvsdk_1_30_00_40) to display on VGA (640x480) but I'm running
> into some problems.
>
> I'm using a chip that takes in rgb digital data using
> vsync/hsync/dotclk and converts it to vga which I have already setup.
> My bootargs are setup to use the new encoder type to output the
> syncs/clock that I need...also working.
>
> The problem I'm having is trying to figure out how to adapt the decode
> demo to work with the new resolution. I've made changes to the
> InitDisplayDevice function so it uses 640x480 instead of D1 but the
> call to FBIOPUT_VSCREENINFO fails since the window won't fit into the
> framebuffer. Has anybody gotten the demos to work to decode and
> display D1 video on screen sizes < D1?
>
> Through some searching I was able to find a bit of an example that was
> named 'decode_hd' that was meant to work with LSP 1.10 but the files
> that it works with are very old and the demo code doesn't really match
> up.
>
> Thanks,
>
> BJ
>
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