acldvppGetChannelDescParam

Obtains the description of an image processing channel.

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

Parameter	Input/Output	Description
channelDesc	Input	Pointer to the channel description. You need to call acldvppCreateChannelDesc to create data of the acldvppChannelDesc type in advance and call acldvppSetChannelDescParam to set the channel attributes.
paramType	Input	Attribute data type.
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.

The value 0 indicates success, and other values indicate failure. For details, see aclError.

Parent topic: acldvppChannelDesc