acldvppGetChannelDescParam

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

Obtains the description of an image processing channel.

Prototype

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

Parameters

Parameter	Input/Output	Description
channelDesc	Input	Pointer to the channel description. Call the acldvppCreateChannelDesc API to create data of the acldvppChannelDesc type and call the acldvppSetChannelDescParam API to set the channel attribute value in advance.
paramType	Input	Attribute data type. For details about the type definition, see acldvppChannelDescParamType.
length	Input	Attribute value length. If the attribute is of type _UINT64, set this parameter to 8. If the attribute is of type _UINT32, set this parameter to 4. If the attribute is of type *_ENUM, set this parameter to 4.
paramRetSize	Output	Pointer to the actual attribute value length.
param	Output	Pointer to the attribute value.

Returns

0 on success; otherwise, failure. For details, see aclError.

Parent topic: acldvppChannelDesc