It is my understanding that you should set up the format with
media-ctl, and only check
the result in your application. In other words, using G/S/TRY_FMT
ioctl on the video output
nodes won't work.
You can try the following pipeline :
ov3640 - ccdc - previewer - previewer V4L2 output
and set previewer sink pad to bayer and previewer src pad to yuv
I don't think you can output rgb565 however. It is only an input
format for the CCDC.
Anyway, when you use G/S/TRY_FMT ioctl, always check the returned format.
2013/8/20 Tom bassai_...@gmx.net:
Hello,
I try from my own application out to grab an image with a ov3640 sensor. For
this I need to understand the media-api and the isp pipeline correctly.
I had problems with the use of media-ctl so I implemented the functionality
into my application and it seems to work fine. Without an error I grabbed an
image, but it was black.
So maybe my format settings are not correctly set. My Question is:
For example I want to grab a rgb565 image from my camera sensor and display
it on a webpage. my pipeline looks like this:
ov3640-ccdc-memory
Would it be enough to just set a raw bayer format on the source and sink
pads and just the format of the video device (/dev/video2) as rgb565?
Regards, Tom
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