acldvppGetChannelDescParam

Applicable Products

Product	Supported
Ascend 950PR/Ascend 950DT	x
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	√

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 acldvppCreateChannelDesc to create data of the acldvppChannelDesc type and call acldvppSetChannelDescParam to set the channel attributes in advance.
paramType	Input	Attribute data type. For details, 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; else, failure. For details, see aclError.

Parent topic: acldvppChannelDesc