Hello, I am trying to feed video frames to ISP from a memory buffer instead of from sensor to do some testing before purchasing a camera sensor for the board. Could you guide me on how that could be done?
它这个没法从ddr 里面读数据，它需要依赖前级模块 mipi adapter 给它送数据，adapter 可以支持 从ddr里面取数据
那我怎麼從adapter發數據呢？如果我用V4L2 的v4l2_m2m_ops 你看行不？
It need adapter work at DDR_MODE mode, it can transfer one mini raw data into ddr buffer, when adapter is working, adapter will send it into isp.
That’s all I know.
@zhiqi_lai I will check that out, thank you : ) Where can I get the image output after image is injected?
You can get the output by v4l2 ops (as same as before).
DDR_MODE here just acts as a virtual SENSOR role.
I see, thanks a bunch : )