Re: IMX CSI capture issues with tda1997x HDMI receiver

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On Sun, Jan 27, 2019 at 2:36 PM Steve Longerbeam <slongerbeam@xxxxxxxxx> wrote:
>
> Hi Tim,
>
> On 1/25/19 3:57 PM, Steve Longerbeam wrote:
> <snip>
> >> Now lets go back to a 480p60 source but this time include the vdic
> >> (which isn't necessary but should still work right?)
> >
> > No. First, the CSI will only capture in bt.656 mode if it sees
> > interlaced fields (bt.656 interlaced sync codes). Well, let me
> > rephrase, the CSI does support progressive BT.656 but I have never
> > tested that myself.
>
> One more comment here. It would be great if you could test a progressive
> bt.656 sensor (example: imx6q-gw54xx tda19971 480p60Hz YUV via BT656
> IPU1_CSI0) since as I said I've never been able to test this myself.
>
> Since it is progressive there's no need for the VDIC, so try these
> pipelines:
>
> mode0: sensor -> mux -> csi -> /dev/videoN
> mode1: sensor -> mux -> csi -> ic_prp -> ic_prpenc -> /dev/videoN
>

Steve,

These both work fine in all cases for 480p60Hz YUV via BT656.

When I use 480p60Hz 'RGB' via BT656 mode0 works fine as the CSI does
the colorspace conversion needed for coda but for mode1 I end up with
the itu601 colorimetery issue from before that I'm still trying to
find a solution for.

Tim



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