hi_mpi_sys_get_chn_csc_matrix

Product	Supported
Atlas 350 Accelerator Card	√
Atlas A3 training product/Atlas A3 inference product	√
Atlas A2 training product/Atlas A2 inference product	√
Atlas 200I/500 A2 inference product	√
Atlas inference product	√
Atlas training product	☓

Obtains the CSC matrix parameters of a channel after the channel is created.

If the hi_mpi_sys_set_chn_csc_matrix API is not called to set the CSC matrix parameters, the default BT.601 wide CSC matrix parameter values are returned.

hi_s32 hi_mpi_sys_get_chn_csc_matrix(hi_mod_id mode, hi_s32 chn, hi_csc_matrix *csc_matrix, hi_csc_coefficient *csc_coefficient)

Parameter	Input/Output	Description
mode	Input	Module ID. Currently, only HI_ID_VDEC and HI_ID_VPC are supported.
chn	Input	Channel ID. When mode is set to HI_ID_VDEC, see the value range of the chn parameter in hi_mpi_vdec_create_chn for the channel ID range. When mode is set to HI_ID_VPC, see the value range of the chn parameter in hi_mpi_vpc_create_chn for the channel ID range.
csc_matrix	Output	Pointer to the data standard of the CSC matrix.
csc_coefficient	Output	Pointer to the CSC matrix parameter value.

Parent topic: Common APIs