Implementation Capabilities
Contents
Implementation Capabilities#
Functions to report capabilities of available implementations and create user-requested library implementations.
API#
MFXQueryImplsDescription#
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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#
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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.