hi_mpi_venc_set_slice_split

Applicability

Product	Supported
Atlas A3 training products/Atlas A3 inference products	☓
Atlas A2 training products/Atlas A2 inference products	☓
Atlas 200I/500 A2 inference products	√
Atlas inference products	√
Atlas training products	☓

Description

Sets the slice split configuration of a channel.

Prototype

hi_s32 hi_mpi_venc_set_slice_split(hi_venc_chn chn, const hi_venc_slice_split *slice_split)

Parameters

Parameter	Input/Output	Description
chn	Input	Encoding channel ID. Atlas 200I/500 A2 inference products: The value range of the encoding channel ID is [0, 128). The JPEGE and VENC functions share the same channels, and the maximum number of channels is 128. Atlas inference products: The value range of the encoding channel ID is [0, 256). The JPEGE and VENC functions share the same channels, and the maximum number of channels is 256.
slice_split	Input	Stream slice split parameter for H.264/H.265 encoding.

Parameter

Input/Output

Description

chn

Input

Encoding channel ID.

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

Atlas inference products: The value range of the encoding channel ID is [0, 256). The JPEGE and VENC functions share the same channels, and the maximum number of channels is 256.

slice_split

Input

Stream slice split parameter for H.264/H.265 encoding.

Returns

0: success
Other values: failure. For details, see VENC/JPEGE Return Codes.

Restrictions

Only H.264/H.265 encoding channels support this API.
Call this API after an encoding channel is created and before the channel is destroyed. If this API is called during encoding, the configuration takes effect when the next frame is encoded.
Before calling this API, you are advised to call hi_mpi_venc_get_slice_split to obtain the slice_split configuration of the current channel.

Parent topic: Video Encoding (VENC) and JPEG Encoder (JPEGE)