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TDA4VM: DisplayNode with 4K input image

Part Number: TDA4VM

Hi TI

We are using an  camera(3840*2160)with ISP (output image format is YUV422)by multi camera usecase.

The program can run success and save pictures success , but there seems to be a problem with the DP display.

pig1 shows there are two nodes in graph:   camera(3840*2160)->capture Node ->Display Node->DISPLAY (1920*1080)

        

pig2 shows saved image and displayed image 

DispalyNode setting:

DISPLAY_WIDTH = 1920

DISPLAY_HEIGHT= 1080

 displayObj->disp_params.opMode = TIVX_KERNEL_DISPLAY_ZERO_BUFFER_COPY_MODE;//TIVX_KERNEL_DISPLAY_BUFFER_COPY_MODE;
            displayObj->disp_params.pipeId = 0/* pipe ID = 2 */
            displayObj->disp_params.outWidth = DISPLAY_WIDTH;
            displayObj->disp_params.outHeight = DISPLAY_HEIGHT;
            displayObj->disp_params.posX = (1920-DISPLAY_WIDTH)/2;
            displayObj->disp_params.posY = (1080-DISPLAY_HEIGHT)/2;
Can you help me answer the following questions:
1)Can display Node display 4k image in 2K monitor with disp_params in 2K
2)Can display Node Support 4K output
 
Thanks & Regards,
jingyu