venc_set_streamcopy_param

Product	Supported (√/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	x

Sets the frame copy parameter.

C Prototype

hi_s32 hi_mpi_venc_set_streamcopy_param(hi_venc_chn, const hi_venc_streamcopy_param *streamcopy_param)

Python Function

ret = acl.himpi.venc_set_streamcopy_param(chn, streamcopy_param)

Parameter	Description
chn	Int, encoding channel ID.
streamcopy_param	Dict, frame copy parameter. For details, see hi_venc_streamcopy_param.

Return Value	Description
ret	Int, error code. 0: success. Other values: failures. For details, see VENC/JPEGE Return Codes.

Only H.264/H.265 encoding channels support this API.
When frame copy is enabled with a copy interval set to 0, the H.265 SPS/Slice follows the new protocol, while the H.264 protocol remains unchanged. The copy interval can be adjusted later, and there is no need to request an I frame for the copy to take effect in this case.
If frame copy is disabled, it can be dynamically enabled at a later time, but it only takes effect in the new IDR.
After frame copy is enabled, the temporal motion vector (TMV) automatically becomes invalid.

Parent topic: VENC/JPEGE APIs