venc_get_h265_vui

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	√

Obtains the VUI parameter settings of an H.265 channel.

C Prototype

hi_s32 hi_mpi_venc_get_h265_vui(hi_venc_chn chn, hi_venc_h265_vui *h265_vui)

Python Function

h265_vui, ret = acl.himpi.venc_get_h265_vui(chn)

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.

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.

Return Value	Description
h265_vui	Dict, dictionary of VUI attributes of an H.265 encoding channel. See hi_venc_h265_vui.
ret	Int, error code. 0: success. Other values: failures. For details, see VENC/JPEGE Return Codes.

Description

h265_vui

Dict, dictionary of VUI attributes of an H.265 encoding channel. See hi_venc_h265_vui.

ret

Int, error code.

Call this API after an encoding channel is created and before the channel is destroyed.

You are advised to call this API after creating a channel but before starting encoding. This reduces the number of times of calling this API during encoding.
It is recommended that this API be called only in an H.265 encoding channel.

Parent topic: VENC/JPEGE APIs