Re: omap3-isp status

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On Mon, Oct 10, 2011 at 7:09 PM, Enrico <ebutera@xxxxxxxxxxxxxxxx> wrote:
> On Mon, Oct 10, 2011 at 6:53 PM, Javier Martinez Canillas
> <martinez.javier@xxxxxxxxx> wrote:
>> On Mon, Oct 10, 2011 at 6:34 PM, Enrico <ebutera@xxxxxxxxxxxxxxxx> wrote:
>>> Ok, i made it work. It was missing just the config_outlineoffset i
>>> wrote before and a missing FLDMODE in SYNC registers.
>>>
>>
>> Great, do you get the ghosting effect or do you have a clean video?
>
>
> Unfortunately i always get the ghosting effect. But this is something
> we will try to fix later.
>
>

Agree, we should try to get some code upstream to add interlaced video
and bt.656 support and fix the artifact later.

>>> Moreover it seems to me that the software-maintained field id
>>> (interlaced_cnt in Javier patches, fldstat in Deepthy patches) is
>>> useless, i've tried to only use the FLDSTAT bit from isp register
>>> (fid) in vd0_isr:
>>>
>>> if (fid == 0) {
>>>     restart = ccdc_isr_buffer(ccdc);
>>>     goto done;
>>> }
>>>
>>> and it works. I've not tested very long frame sequences, only up to 16
>>> frames. The only issue is that the first frame could be half-green
>>> because a field is missing.
>>>
>>
>> Yes, when I tried Deepthy patches I realized that the fldstat was not
>> in sync with the frames, but probably I made something wrong.
>
>
> I had noticed the same thing, but now i tested it and it is ok, maybe
> my fault too.
>
>
>> We had the same problem with the hal-green frame. Our solution was to
>> synchronize the CCDC with the first even field looking at fdstat on
>> the VD1 interrupt handler and forcing to start processing from an ODD
>> sub-frame.
>
> Thinking more about it, it's ugly to have that half-green video frame
> even if it's just one. It's better to keep your or Deepthy solution.
>
> Enrico
>

Well, that is something that can be fixed later also. Can you send to
the list your patches? So, Laurent, Sakari and others than know more
about the ISP can review it. I hope they can find the cause for the
artifact.

Thank you and best regards,

-- 
Javier Martínez Canillas
(+34) 682 39 81 69
Barcelona, Spain
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