Global application configuration. The number of VPC channels in the DVPP resource pool can be configured.

struct AppGlobalCfg {
    uint32_t vpcChnNum = DEFAULT_VPC_CHN_NUM;
};

Parameter	Description
vpcChnNum	Size of the VPC channel resource pool. By default, DEFAULT_VPC_CHN_NUM is 48. The value range is [1, 128].