Implementation Capabilities

Functions to report capabilities of available implementations and create user-requested library implementations.

API

MFXQueryImplsDescription

mfxHDL *MFXQueryImplsDescription(mfxImplCapsDeliveryFormat format, mfxU32 *num_impls)

Delivers implementation capabilities in the requested format according to the format value.

Since

This function is available since API version 2.0.

Parameters:

• format – [in] Format in which capabilities must be delivered. See mfxImplCapsDeliveryFormat for more details.

• num_impls – [out] Number of the implementations.

Returns:

Array of handles to the capability report or NULL in case of unsupported format or NULL num_impls pointer. Length of array is equal to num_impls.

Important

The MFXQueryImplsDescription() function is mandatory for any implementation.

MFXReleaseImplDescription

mfxStatus MFXReleaseImplDescription(mfxHDL hdl)

Destroys the handle allocated by the MFXQueryImplsDescription function. Implementation must remember which handles are released. Once the last handle is released, this function must release memory allocated for the array of handles.

Since

This function is available since API version 2.0.

Parameters:

hdl – [in] Handle to destroy. Can be equal to NULL.

Returns:

MFX_ERR_NONE The function completed successfully.

Important

The MFXReleaseImplDescription() function is mandatory for any implementation.