venc_set_rc_param

Applicable Products

Product

Supported

Ascend 950PR/Ascend 950DT

x

Atlas A3 training products/Atlas A3 inference products

x

Atlas A2 training products/Atlas A2 inference products

x

Atlas training products

x

Atlas inference products

√

Atlas 200I/500 A2 inference products

√

Description

Sets the advanced RC parameters of an encoding channel.

Prototype

  • C Prototype
    1
    hi_s32 hi_mpi_venc_set_rc_param(hi_venc_chn chn, const hi_venc_rc_param *rc_param)
    
  • Python Function
    1
    ret = acl.himpi.venc_set_rc_param(chn, rc_param)
    

Parameters

Parameter

Description

chn

Int, encoding channel ID.
  • Atlas inference products: The value range of this parameter is [0, 256). The JPEGE and VENC functions share the same channels, and the maximum number of channels is 256.
  • Atlas 200I/500 A2 inference products: The value range of this parameter is [0, 128). The JPEGE and VENC functions share the same channels, and the maximum number of channels is 128.

rc_param

Dict, advanced parameter dictionary of the encoding channel bit rate controller. For details, see hi_venc_rc_param.

Return Value

Return Value

Description

ret

Int, error code.

Restrictions

  • This API must be called after an encoding channel is created and before the channel is destroyed.
  • If this API is not called to set the advanced RC parameters of an encoding channel, the default advanced RC settings will be used.
  • Before calling this API, you are advised to obtain the advanced RC parameters of the encoding channel by calling acl.himpi.venc_get_rc_param.