mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-15 04:46:32 +00:00
81d63948d1
Copied from oneVPL project (https://github.com/oneapi-src/oneVPL) v2022.0.3 tag at the commit of efc259f8b7ee5c334bca1a904a503186038bbbdd This is corresponding to MFX API version 2.6 Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1408>
247 lines
9.8 KiB
C
247 lines
9.8 KiB
C
/*############################################################################
|
|
# Copyright Intel Corporation
|
|
#
|
|
# SPDX-License-Identifier: MIT
|
|
############################################################################*/
|
|
|
|
#ifndef __MFXDISPATCHER_H__
|
|
#define __MFXDISPATCHER_H__
|
|
|
|
#include "mfxdefs.h"
|
|
#include "mfxcommon.h"
|
|
#include "mfxsession.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/*! Loader handle. */
|
|
typedef struct _mfxLoader *mfxLoader;
|
|
|
|
/*! Config handle. */
|
|
typedef struct _mfxConfig *mfxConfig;
|
|
|
|
/*!
|
|
@brief Creates the loader.
|
|
@return Loader Loader handle or NULL if failed.
|
|
|
|
@since This function is available since API version 2.0.
|
|
*/
|
|
mfxLoader MFX_CDECL MFXLoad(void);
|
|
|
|
/*!
|
|
@brief Destroys the dispatcher.
|
|
@param[in] loader Loader handle.
|
|
|
|
@since This function is available since API version 2.0.
|
|
*/
|
|
void MFX_CDECL MFXUnload(mfxLoader loader);
|
|
|
|
/*!
|
|
@brief Creates dispatcher configuration.
|
|
@details Creates the dispatcher internal configuration, which is used to filter out available implementations.
|
|
This configuration is used to walk through selected implementations to gather more details and select the appropriate
|
|
implementation to load. The loader object remembers all created mfxConfig objects and destroys them during the mfxUnload
|
|
function call.
|
|
|
|
Multiple configurations per single mfxLoader object are possible.
|
|
|
|
Usage example:
|
|
@code
|
|
mfxLoader loader = MFXLoad();
|
|
mfxConfig cfg = MFXCreateConfig(loader);
|
|
MFXCreateSession(loader,0,&session);
|
|
@endcode
|
|
@param[in] loader Loader handle.
|
|
@return Config handle or NULL pointer is failed.
|
|
|
|
@since This function is available since API version 2.0.
|
|
*/
|
|
mfxConfig MFX_CDECL MFXCreateConfig(mfxLoader loader);
|
|
|
|
/*!
|
|
@brief Adds additional filter properties (any fields of the mfxImplDescription structure) to the configuration of the loader object.
|
|
One mfxConfig properties can hold only single filter property.
|
|
@note Each new call with the same parameter name will overwrite the previously set value. This may invalidate other properties.
|
|
@note Each new call with another parameter name will delete the previous property and create a new property based on new name's value.
|
|
|
|
@param[in] config Config handle.
|
|
@param[in] name Name of the parameter (see mfxImplDescription structure and example).
|
|
@param[in] value Value of the parameter.
|
|
@return
|
|
MFX_ERR_NONE The function completed successfully.
|
|
MFX_ERR_NULL_PTR If config is NULL. \n
|
|
MFX_ERR_NULL_PTR If name is NULL. \n
|
|
MFX_ERR_NOT_FOUND If name contains unknown parameter name.
|
|
MFX_ERR_UNSUPPORTED If value data type does not equal the parameter with provided name.
|
|
|
|
@since This function is available since API version 2.0.
|
|
*/
|
|
mfxStatus MFX_CDECL MFXSetConfigFilterProperty(mfxConfig config, const mfxU8* name, mfxVariant value);
|
|
|
|
/*!
|
|
@brief Iterates over filtered out implementations to gather their details. This function allocates memory to store
|
|
mfxImplDescription structure instance. Use the MFXDispReleaseImplDescription function to free memory allocated to the mfxImplDescription structure.
|
|
@param[in] loader Loader handle.
|
|
@param[in] i Index of the implementation.
|
|
@param[in] format Format in which capabilities need to be delivered. See the mfxImplCapsDeliveryFormat enumerator for more details.
|
|
@param[out] idesc Pointer to the mfxImplDescription structure.
|
|
@return
|
|
MFX_ERR_NONE The function completed successfully. The idesc contains valid information.\n
|
|
MFX_ERR_NULL_PTR If loader is NULL. \n
|
|
MFX_ERR_NULL_PTR If idesc is NULL. \n
|
|
MFX_ERR_NOT_FOUND Provided index is out of possible range. \n
|
|
MFX_ERR_UNSUPPORTED If requested format is not supported.
|
|
|
|
@since This function is available since API version 2.0.
|
|
*/
|
|
mfxStatus MFX_CDECL MFXEnumImplementations(mfxLoader loader, mfxU32 i, mfxImplCapsDeliveryFormat format, mfxHDL* idesc);
|
|
|
|
|
|
/*!
|
|
@brief Loads and initializes the implementation.
|
|
@code
|
|
mfxLoader loader = MFXLoad();
|
|
int i=0;
|
|
while(1) {
|
|
mfxImplDescription *idesc;
|
|
MFXEnumImplementations(loader, i, MFX_IMPLCAPS_IMPLDESCSTRUCTURE, (mfxHDL*)&idesc);
|
|
if(is_good(idesc)) {
|
|
MFXCreateSession(loader, i,&session);
|
|
// ...
|
|
MFXDispReleaseImplDescription(loader, idesc);
|
|
}
|
|
else
|
|
{
|
|
MFXDispReleaseImplDescription(loader, idesc);
|
|
break;
|
|
}
|
|
}
|
|
@endcode
|
|
@param[in] loader Loader handle.
|
|
@param[in] i Index of the implementation.
|
|
@param[out] session Pointer to the session handle.
|
|
@return
|
|
MFX_ERR_NONE The function completed successfully. The session contains a pointer to the session handle.\n
|
|
MFX_ERR_NULL_PTR If loader is NULL. \n
|
|
MFX_ERR_NULL_PTR If session is NULL. \n
|
|
MFX_ERR_NOT_FOUND Provided index is out of possible range.
|
|
|
|
@since This function is available since API version 2.0.
|
|
*/
|
|
mfxStatus MFX_CDECL MFXCreateSession(mfxLoader loader, mfxU32 i, mfxSession* session);
|
|
|
|
/*!
|
|
@brief
|
|
Destroys handle allocated by the MFXEnumImplementations function.
|
|
|
|
@param[in] loader Loader handle.
|
|
@param[in] hdl Handle to destroy. Can be equal to NULL.
|
|
|
|
@return
|
|
MFX_ERR_NONE The function completed successfully. \n
|
|
MFX_ERR_NULL_PTR If loader is NULL. \n
|
|
MFX_ERR_INVALID_HANDLE Provided hdl handle is not associated with this loader.
|
|
|
|
@since This function is available since API version 2.0.
|
|
*/
|
|
mfxStatus MFX_CDECL MFXDispReleaseImplDescription(mfxLoader loader, mfxHDL hdl);
|
|
|
|
/* Helper macro definitions to add config filter properties. */
|
|
|
|
/*! Adds single property of mfxU32 type.
|
|
@param[in] loader Valid mfxLoader object
|
|
@param[in] name Property name string
|
|
@param[in] value Property value
|
|
*/
|
|
#define MFX_ADD_PROPERTY_U32(loader, name, value) \
|
|
{ \
|
|
mfxVariant impl_value; \
|
|
mfxConfig cfg = MFXCreateConfig(loader); \
|
|
impl_value.Version.Version = MFX_VARIANT_VERSION; \
|
|
impl_value.Type = MFX_VARIANT_TYPE_U32; \
|
|
impl_value.Data.U32 = value; \
|
|
MFXSetConfigFilterProperty(cfg, (mfxU8 *)name, impl_value); \
|
|
}
|
|
|
|
/*! Adds single property of mfxU16 type.
|
|
@param[in] loader Valid mfxLoader object
|
|
@param[in] name Property name string
|
|
@param[in] value Property value
|
|
*/
|
|
#define MFX_ADD_PROPERTY_U16(loader, name, value) \
|
|
{ \
|
|
mfxVariant impl_value = { 0 }; \
|
|
mfxConfig cfg = MFXCreateConfig(loader); \
|
|
impl_value.Version.Version = MFX_VARIANT_VERSION; \
|
|
impl_value.Type = MFX_VARIANT_TYPE_U16; \
|
|
impl_value.Data.U16 = value; \
|
|
MFXSetConfigFilterProperty(cfg, (mfxU8 *)name, impl_value); \
|
|
}
|
|
|
|
/*! Adds single property of pointer type.
|
|
@param[in] loader Valid mfxLoader object
|
|
@param[in] name Property name string
|
|
@param[in] value Property value
|
|
*/
|
|
#define MFX_ADD_PROPERTY_PTR(loader, name, value) \
|
|
{ \
|
|
mfxVariant impl_value = { 0 }; \
|
|
mfxConfig cfg = MFXCreateConfig(loader); \
|
|
impl_value.Version.Version = MFX_VARIANT_VERSION; \
|
|
impl_value.Type = MFX_VARIANT_TYPE_PTR; \
|
|
impl_value.Data.Ptr = (mfxHDL)value; \
|
|
MFXSetConfigFilterProperty(cfg, (mfxU8 *)name, impl_value); \
|
|
}
|
|
|
|
/*! Update existing property of mfxU32 type.
|
|
@param[in] loader Valid mfxLoader object
|
|
@param[in] config Valid mfxConfig object
|
|
@param[in] name Property name string
|
|
@param[in] value Property value
|
|
*/
|
|
#define MFX_UPDATE_PROPERTY_U32(loader, config, name, value) \
|
|
{ \
|
|
mfxVariant impl_value; \
|
|
impl_value.Version.Version = MFX_VARIANT_VERSION; \
|
|
impl_value.Type = MFX_VARIANT_TYPE_U32; \
|
|
impl_value.Data.U32 = value; \
|
|
MFXSetConfigFilterProperty(config, (mfxU8 *)name, impl_value); \
|
|
}
|
|
|
|
/*! Update existing property of mfxU16 type.
|
|
@param[in] loader Valid mfxLoader object
|
|
@param[in] config Valid mfxConfig object
|
|
@param[in] name Property name string
|
|
@param[in] value Property value
|
|
*/
|
|
#define MFX_UPDATE_PROPERTY_U16(loader, config, name, value) \
|
|
{ \
|
|
mfxVariant impl_value; \
|
|
impl_value.Version.Version = MFX_VARIANT_VERSION; \
|
|
impl_value.Type = MFX_VARIANT_TYPE_U16; \
|
|
impl_value.Data.U16 = value; \
|
|
MFXSetConfigFilterProperty(config, (mfxU8 *)name, impl_value); \
|
|
}
|
|
|
|
/*! Update existing property of pointer type.
|
|
@param[in] loader Valid mfxLoader object
|
|
@param[in] config Valid mfxConfig object
|
|
@param[in] name Property name string
|
|
@param[in] value Property value
|
|
*/
|
|
#define MFX_UPDATE_PROPERTY_PTR(loader, config, name, value) \
|
|
{ \
|
|
mfxVariant impl_value; \
|
|
impl_value.Version.Version = MFX_VARIANT_VERSION; \
|
|
impl_value.Type = MFX_VARIANT_TYPE_PTR; \
|
|
impl_value.Data.Ptr = (mfxHDL)value; \
|
|
MFXSetConfigFilterProperty(config, (mfxU8 *)name, impl_value); \
|
|
}
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|
|
|