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TDA4VM: We want to use input YUYV 422 and output NV12

shicheng wang
Prodigy 250 points
Part Number: TDA4VM

Tool/software:

HW: TDA4VM  customer hardware

SDK: v7.03

We are developing base on vision_apps/apps/srv_demos/app_srv_camera

When we use sensor input is UYVY422 and output is NV12, it can work as we want.

But now, we want to change the sensor, and the new sensor input is YUYV422, output is still NV12.

But the image is like below:

We try to change iss_cfg  IssSensor_CreateParams to VX_DF_IMAGE_YUYV, but program can not run and report err.

How should we change the configure? Is support YUYV422?

Thanks 

  • 0
    TI__Guru* 81966 points

    Hi,

    Have you validated this sensor by streaming using the single cam app?

    May I know output of what is NV12? 

    Are the DCC tuning done for this sensor?

    Regards,

    Nikhil

  • 0 in reply to Nikhil Dasan
    Prodigy 250 points

    Hi Nikhil,

    Thanks for your reply, I am confirm the sensor output is YUYV 422 bu dump image frome capture as flow:

    And now we are using LDC to transfer it to NV12 (LDC output is NV12), LDC output as below:

    The LDC only support UYVY422, am I right? 

    Is there anyway to transfer YUYV422 to UYVY422 in CSIRX or any other node? 

    Or how I can transfer YUYV422 to NV12 directly?

    Thanks

  • 0 in reply to shicheng wang
    TI__Guru* 81966 points

    Hi,

    You can use the DSS M2M node [ tivxDisplayM2MNode()] to convert from YUYV to NV12

    Regards,

    Nikhil

  • 0 in reply to Nikhil Dasan
    Prodigy 250 points

    Hi Nikhil,

    Thanks very much for reply.

    Is there any example code or manual that i can refer to?

    Thanks

  • 0 in reply to shicheng wang
    TI__Guru* 81966 points

    Hi,

    There is no exact format conversion example, but you can refer the conformance test of DSS M2M node (i.e. test_display_m2m.c) in video_io/kernels/video_io/test/ folder in the latest SDK

    Regards,

    Nikhil