Defines all of the operations on IVIDENC2 objects. More...

#include <ividenc2.h>

Collaboration diagram for IVIDENC2_Fxns:

Data Fields
IALG_Fxns	ialg
XDAS_Int32(*	process )(IVIDENC2_Handle handle, IVIDEO2_BufDesc inBufs, XDM2_BufDesc outBufs, IVIDENC2_InArgs inArgs, IVIDENC2_OutArgs outArgs)
	Basic video encoding call.
XDAS_Int32(*	control )(IVIDENC2_Handle handle, IVIDENC2_Cmd id, IVIDENC2_DynamicParams params, IVIDENC2_Status status)
	Control behavior of an algorithm.

Detailed Description

Defines all of the operations on IVIDENC2 objects.

Field Documentation

IALG_Fxns IVIDENC2_Fxns::ialg

XDAIS algorithm interface.

Basic video encoding call.

Parameters:

[in]	handle	Handle to an algorithm instance.
[in,out]	inBufs	Input video buffer descriptors.
[in,out]	outBufs	Output buffer descriptors. The algorithm may modify the output buffer pointers.
[in]	inArgs	Input arguments. This is a required parameter.
[out]	outArgs	Ouput results. This is a required parameter.

Remarks:: process() is a blocking call. When process() returns, the algorithm's processing is complete.

Precondition:: inBufs must not be NULL, and must point to a valid IVIDEO2_BufDesc structure.; inBufs->numPlanes will indicate the total number of input buffers supplied for input frame in the inBufs->planeDesc[] array.; inBufs->numMetaPlanes will indicate the total number of input buffers supplied for meta data planes in the inBufs->metadataPlaneDesc[] array.; outBufs must not be NULL, and must point to a valid XDM2_BufDesc structure.; outBufs->buf[0] must not be NULL, and must point to a valid buffer of data that is at least outBufs->bufSizes[0] bytes in length.; inArgs must not be NULL, and must point to a valid IVIDENC2_InArgs structure.; outArgs must not be NULL, and must point to a valid IVIDENC2_OutArgs structure.; The buffers in inBuf and outBuf are physically contiguous and owned by the calling application.

Postcondition:: The algorithm must not modify the contents of inArgs.; The algorithm must not modify the contents of inBufs, with the exception of inBufs.bufDesc[].accessMask. That is, the data and buffers pointed to by these parameters must be treated as read-only.; The algorithm must appropriately set/clear the IVIDEO2_BufDesc.planeDesc[].accessMask and IVIDEO2_BufDesc.metadataPlaneDesc[].accessMask fields in inBufs to indicate the mode in which each of the respective buffers were read. For example, if the algorithm only read from inBufs.planeDesc[0].buf using the algorithm processor, it could utilize XDM_SETACCESSMODE_READ to update the appropriate accessMask fields. The application may utilize these returned values to appropriately manage cache.; The buffers in inBufs are owned by the calling application.

Return values:

IVIDENC2_EOK	Success.
IVIDENC2_EFAIL	General failure. See IVIDENC2_Status.extendedError for more detailed further error conditions.
IVIDENC2_EUNSUPPORTED	Request is unsupported.

Todo:: Need to review these comments. Not sure inBufs and outBufs are correctly described.

Control behavior of an algorithm.

Parameters:

[in]	handle	Handle to an algorithm instance.
[in]	id	Command id. See XDM_CmdId.
[in]	params	Dynamic parameters. This is a required parameter.
[out]	status	Output results. This is a required parameter.

Precondition:: handle must be a valid algorithm instance handle.; params must not be NULL, and must point to a valid IVIDENC2_DynamicParams structure.; status must not be NULL, and must point to a valid IVIDENC2_Status structure.; If a buffer is provided in the status->data field, it must be physically contiguous and owned by the calling application.

Postcondition:: The algorithm must not modify the contents of params. That is, the data pointed to by this parameter must be treated as read-only.; If a buffer was provided in the status->data field, it is owned by the calling application.

Return values:

IVIDENC2_EOK	Success.
IVIDENC2_EFAIL	General failure. See IVIDENC2_Status.extendedError for more detailed further error conditions.
IVIDENC2_EUNSUPPORTED	Request is unsupported.

The documentation for this struct was generated from the following file: