aclvdecGetChannelDescParam

Applicability

Product	Supported
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	√

Description

Obtains the description of a video decoding channel.

Prototype

aclError aclvdecGetChannelDescParam(const aclvdecChannelDesc *channelDesc, aclvdecChannelDescParamType paramType, size_t length, size_t *paramRetSize, void *param)

Parameters

Parameter	Input/Output	Description
channelDesc	Input	Pointer to the description of a video decoding channel. Call the aclvdecCreateChannelDesc API to create data of the aclvdecChannelDesc type and call the aclvdecSetChannelDescParam API to set the attribute value of the video decoding channel description in advance.
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 *_PTR, set this parameter to 4 for 32-bit OS or 8 for 64-bit OS.
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: aclvdecChannelDesc