IAAFDataEssenceDescriptor Interface Reference

AAFRESULT_NOMEMORY. More...

List of all members.

Public Member Functions
HRESULT	Initialize ()
	Initializes a newly allocated, empty IAAFDataEssenceDescriptor-supporting object.
HRESULT	SetDataEssenceCoding ([in] aafUID_constref dataEssenceCoding)
	Sets the DataEssenceCoding property This property is optional.
HRESULT	GetDataEssenceCoding ([out] aafUID_t *pDataEssenceCoding)
	Gets the DataEssenceCoding property information of the video essence data.

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Detailed Description

AAFRESULT_NOMEMORY.

• insufficient system memory is available to perform the operation.

AAFRESULT_NOT_INITIALIZED

• This object has not yet had Initialize() called on it.

Objects that implement IAAFDataEssenceDescriptor also implement the following interfaces:

• IAAFFileDescriptor
• IAAFFileDescriptor2
• IAAFEssenceDescriptor
• IAAFObject

Definition at line 5202 of file AAF.idl.

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Member Function Documentation

HRESULT IAAFDataEssenceDescriptor::GetDataEssenceCoding

(

[out] aafUID_t *

pDataEssenceCoding

)

Gets the DataEssenceCoding property information of the video essence data.

This property is optional.

Succeeds if all of the following are true:

• the pDataEssenceCoding pointer is valid.

If this method fails nothing will be written to *pDataEssenceCoding.

This method will return the following codes:

AAFRESULT_SUCCESS

• succeeded. (This is the only code indicating success.)

AAFRESULT_NULL_PARAM

• pDataEssenceCoding arg is NULL.

Parameters:

pDataEssenceCoding

[out] Optional.

HRESULT IAAFDataEssenceDescriptor::Initialize

(

)

Initializes a newly allocated, empty IAAFDataEssenceDescriptor-supporting object.

This method must be called after allocation, and before any other method can be called.

Succeeds if:

• Initialize() has not yet been called on this object.

This method will return the following codes. If more than one of the listed errors is in effect, it will return the first one encountered in the order given below:

AAFRESULT_SUCCESS

• succeeded. (This is the only code indicating success.)

AAFRESULT_ALREADY_INITIALIZED

• Initialize() has already been called on this object.

HRESULT IAAFDataEssenceDescriptor::SetDataEssenceCoding

(

[in] aafUID_constref

dataEssenceCoding

)

Sets the DataEssenceCoding property This property is optional.

If this method fails the Data Definition property will not be changed.

This method will return the following codes:

AAFRESULT_SUCCESS

• succeeded. (This is the only code indicating success.)

Parameters:

dataEssenceCoding

[in] Optional.