[参考译文] TDA4VE-Q1：如何使用 displaym2m 将图像从 YUV420转换为 RGB888

tivx_display_m2m_params_init(&displayM2mObj->m2m_params);
displayM2mObj->m2m_params.instId = 0;
displayM2mObj->m2m_params.numPipe = 1;
displayM2mObj->m2m_params.overlayId = 3;
displayM2mObj->m2m_params.pipeId[0] = 3;

displayM2mObj->m2m_config = vxCreateUserDataObject(context, "tivx_display_m2m_params_t, sizeof(tivx_display_m2m_params_t), NULL);

vxSetReferenceName((vx_reference)displayM2mObj->m2m_config, "displayM2m_node_config");

vxCopyUserDataObject(displayM2mObj->m2m_config, 0,
                        sizeof(tivx_display_m2m_params_t),
                        &displayM2mObj->m2m_params,
                        VX_WRITE_ONLY,
                        VX_MEMORY_TYPE_HOST);

vx_image img_obj = vxCreateImage(context, w, h, VX_DF_IMAGE_RGB);
for(q = 0; q < bufq_depth; q++)
{
    displayM2mObj->displaym2m_out_arr_q[q] = vxCreateObjectArray(context, (vx_reference)img_obj, sensorObj->num_cameras_enabled);
    vx_char name[VX_MAX_REFERENCE_NAME];

    snprintf(name, VX_MAX_REFERENCE_NAME, "displaym2m_out_arr_q_%d", q);

    vxSetReferenceName((vx_reference)displayM2mObj->displaym2m_out_arr_q[q], name);
}
vxReleaseImage(&img_obj);

vx_image input_img = (vx_image)vxGetObjectArrayItem(input_arr/*vx_object_array*/, 0);
vx_image output_img = (vx_image)vxGetObjectArrayItem(displayM2mObj->displaym2m_out_arr_q/*vx_object_array*/, 0);

displayM2mObj->node = tivxDisplayM2MNode(graph, displayM2mObj->m2m_config, input_img, output_img);

vxReleaseImage(&input_img);
vxReleaseImage(&output_img);

vxSetReferenceName((vx_reference)displayM2mObj->node, "displaym2m_node");
vxSetNodeTarget(displayM2mObj->node, VX_TARGET_STRING, TIVX_TARGET_DISPLAY_M2M2);

vx_bool replicate[] = { vx_false_e, vx_true_e, vx_true_e};
vxReplicateNode(graph, displayM2mObj->node, replicate, 3);