Function: dvpp_get_channel_desc_param

Applicability

Product	Supported (√/x)
Atlas A3 training products/Atlas A3 inference products	√
Atlas A2 training products/Atlas A2 inference products	√
Atlas training products	√
Atlas inference products	√
Atlas 200I/500 A2 inference products	√

Function Usage

Obtains the description of an image processing channel.

Prototype

C Prototype

aclError acldvppGetChannelDescParam(const acldvppChannelDesc *channelDesc, acldvppChannelDescParamType paramType, size_t length, size_t *paramRetSize, void *param)

Python Function

paramRetSize, param, ret=acl.media.dvpp_get_channel_desc_param(channelDesc, paramType)

Parameter Description

Parameter	Description
channelDesc	Int, pointer address of the channel description. Before calling this API, call acl.media.dvpp_create_channel_desc to create data of the acldvppChannelDesc type and call acl.media.dvpp_set_channel_desc_param to set the channel attributes.
paramType	Int, attribute parameter type. For details, see acldvppChannelDescParamType.

Parameter

Description

channelDesc

Int, pointer address of the channel description.

Before calling this API, call acl.media.dvpp_create_channel_desc to create data of the acldvppChannelDesc type and call acl.media.dvpp_set_channel_desc_param to set the channel attributes.

paramType

Int, attribute parameter type. For details, see acldvppChannelDescParamType.

Return Value Description

Return Value	Description
paramRetSize	Int, actual attribute value length.
param	Int, pointer address of the attribute value.
ret	Int, error code: 0 on success; else, failure.

Parent topic: common