Re: Help with omap3isp resizing

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Hi Paul,

On Monday 03 October 2011 07:51:34 Paul Chiha wrote:
> Hi,
> 
> I've been having trouble getting the resizer to work, and mainly because
> I don't know how to correctly configure it.
> I'm using kernel 2.6.37 on arm DM37x board.
> 
> I've been able to configure the media links sensor=>ccdc=>ccdc_output
> (all with 640x480 V4L2_MBUS_FMT_UYVY8_2X8) and VIDIOC_STREAMON works on
> /dev/video2.
> But if I configure media links sensor=>ccdc=>resizer=>resizer_output,
> then VIDIOC_STREAMON fails on /dev/video6 (with pixelformat mismatch).
> I noticed that the resizer driver only supports V4L2_MBUS_FMT_UYVY8_1X16
> & V4L2_MBUS_FMT_YUYV8_1X16, so I tried again with all the links set to
> V4L2_MBUS_FMT_UYVY8_1X16 instead, but then ioctl VIDIOC_SUBDEV_S_FMT
> fails on /dev/v4l-subdev8, because the sensor driver doesn't support
> 1X16.
> Then I tried using V4L2_MBUS_FMT_UYVY8_2X8 for the sensor and
> V4L2_MBUS_FMT_UYVY8_1X16 for the resizer, but it either failed with
> pixelformat mismatch or link pipeline mismatch, depending on which pads
> were different.
> 
> Can someone please tell me what I need to do to make this work?

Long story short, I don't think that pipeline has ever been tested. I'm 
unfortunately lacking hardware to work on that, as none of my OMAP3 hardware 
has a YUV input.

-- 
Regards,

Laurent Pinchart
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