Re: omap3isp: wrong image after resizer with mt9v034 sensor

[Laurent Pinchart <laurent.pinchart@ideasonboard.com>]

Hi Enric,

On Monday 24 September 2012 10:33:42 Enric Balletbò i Serra wrote:
> Hi everybody,
> 
> I'm trying to add support for MT9V034 Aptina image sensor to current
> mainline, as a base of my current work I start using the latest
> omap3isp-next branch from Laurent's git tree [1]. The MT9V034 image
> sensor is very similar to MT9V032 sensor, so I modified current driver
> to accept MT9V034 sensor adding the chip ID. The driver recognizes the
> sensor and I'm able to capture some frames.
> 
> I started capturing directly frames using the pipeline Sensor -> CCDC
> 
>     ./media-ctl -r
>     ./media-ctl -l '"mt9v032 3-005c":0->"OMAP3 ISP CCDC":0[1]'
>     ./media-ctl -l '"OMAP3 ISP CCDC":1->"OMAP3 ISP CCDC output":0[1]'
>     ./media-ctl -f '"mt9v032 3-005c":0 [SGRBG10 752x480]'
>     ./media-ctl -f '"OMAP3 ISP CCDC":1 [SGRBG10 752x480]'
> 
>     # Test pattern
>     ./yavta --set-control '0x00981901 1' /dev/v4l-subdev8
> 
>     # ./yavta -p -f SGRBG10 -s 752x480 -n 4 --capture=3 /dev/video2
> --file=img-#.bin
> 
> To convert to jpg I used bayer2rgb [2] program executing following command,
> 
>     $ convert -size 752x480  GRBG_BAYER:./img-000000.bin img-000000.jpg
> 
> And the result image looks like this
> 
>     http://downloads.isee.biz/pub/files/patterns/img-from-sensor.jpg
> 
> Seems good, so I tried to use following pipeline Sensor -> CCDC ->
> Preview -> Resizer
> 
>     ./media-ctl -r
>     ./media-ctl -l '"mt9v032 3-005c":0->"OMAP3 ISP CCDC":0[1]'
>     ./media-ctl -l '"OMAP3 ISP CCDC":2->"OMAP3 ISP preview":0[1]'
>     ./media-ctl -l '"OMAP3 ISP preview":1->"OMAP3 ISP resizer":0[1]'
>     ./media-ctl -l '"OMAP3 ISP resizer":1->"OMAP3 ISP resizer output":0[1]'
> 
>     ./media-ctl -V '"mt9v032 3-005c":0[SGRBG10 752x480]'
>     ./media-ctl -V  '"OMAP3 ISP CCDC":0 [SGRBG10 752x480]'
>     ./media-ctl -V  '"OMAP3 ISP CCDC":2 [SGRBG10 752x480]'
>     ./media-ctl -V  '"OMAP3 ISP preview":1 [UYVY 752x480]'
>     ./media-ctl -V  '"OMAP3 ISP resizer":1 [UYVY 752x480]'
> 
>     # Set Test pattern
> 
>     ./yavta --set-control '0x00981901 1' /dev/v4l-subdev8
> 
>     ./yavta -f UYVY -s 752x480 --capture=3 --file=img-#.uyvy /dev/video6
> 
> I used 'convert' program to pass from UYVY to jpg,
> 
>     $ convert -size 752x480 img-000000.uyvy img-000000.jpg
> 
> and the result image looks like this
> 
>     http://downloads.isee.biz/pub/files/patterns/img-from-resizer.jpg
> 
> As you can see, the image is wrong and I'm not sure if the problem is
> from the sensor, from the previewer, from the resizer or from my
> conversion. Anyone have idea where should I look ? Or which is the
> source of the problem ?

Could you please post the output of all the above media-ctl and yavta runs, as 
well as the captured raw binary frame ?

> [1] http://git.linuxtv.org/pinchartl/media.git/shortlog/refs/heads/omap3isp-
> omap3isp-next
> [2] https://github.com/jdthomas/bayer2rgb

-- 
Regards,

Laurent Pinchart