hi_mpi_venc_stop_chn

Applicability

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	☓

Function Description

Makes an encoding channel stop receiving source images.

Prototype

hi_s32 hi_mpi_venc_stop_chn(hi_venc_chn chn)

Parameters

Parameter	Input/Output	Description
chn	Input	Encoding channel ID. Atlas 350 Accelerator Card: encoding channel ID. The value range is as follows: [0, 256). The maximum number of JPEGE channels is 256. Atlas A3 training product / Atlas A3 inference product : The value range of the encoding channel ID is [0, 256). The maximum number of JPEGE channels is 256. Atlas A2 training product / Atlas A2 inference product : The value range of the encoding channel ID is [0, 256). The maximum number of JPEGE channels is 256. Atlas 200I/500 A2 inference product : 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. For the Atlas inference product , the value range of the encoding channel ID is [0, 256). The JPEGE and VENC functions share channels. The maximum number of channels is 256.

Parameter

Input/Output

Description

chn

Input

Encoding channel ID.

Atlas 350 Accelerator Card: encoding channel ID. The value range is as follows: [0, 256). The maximum number of JPEGE channels is 256.

Atlas A3 training product / Atlas A3 inference product : The value range of the encoding channel ID is [0, 256). The maximum number of JPEGE channels is 256.

Atlas A2 training product / Atlas A2 inference product : The value range of the encoding channel ID is [0, 256). The maximum number of JPEGE channels is 256.

Atlas 200I/500 A2 inference product : 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.

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

Returns

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

Restrictions

Ensure that a channel has been created. Otherwise, a failure is returned.
Repeated calls to this API return successful responses.
Prior to any attempt to destroy or reset an encoding channel, stop the channel from receiving new images by using this API.
When this MPI is called, only receiving raw data is stopped but the stream buffer is not cleared.