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/*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_HWCONTEXT_VAAPI_H
#define AVUTIL_HWCONTEXT_VAAPI_H
#include <va/va.h>
/**
* @file
* API-specific header for AV_HWDEVICE_TYPE_VAAPI.
*
* Dynamic frame pools are supported, but note that any pool used as a render
* target is required to be of fixed size in order to be be usable as an
* argument to vaCreateContext().
*
* For user-allocated pools, AVHWFramesContext.pool must return AVBufferRefs
* with the data pointer set to a VASurfaceID.
*/
enum {
/**
* The quirks field has been set by the user and should not be detected
* automatically by av_hwdevice_ctx_init().
*/
AV_VAAPI_DRIVER_QUIRK_USER_SET = (1 << 0),
/**
* The driver does not destroy parameter buffers when they are used by
* vaRenderPicture(). Additional code will be required to destroy them
* separately afterwards.
*/
AV_VAAPI_DRIVER_QUIRK_RENDER_PARAM_BUFFERS = (1 << 1),
/**
* The driver does not support the VASurfaceAttribMemoryType attribute,
* so the surface allocation code will not try to use it.
*/
AV_VAAPI_DRIVER_QUIRK_ATTRIB_MEMTYPE = (1 << 2),
/**
* The driver does not support surface attributes at all.
* The surface allocation code will never pass them to surface allocation,
* and the results of the vaQuerySurfaceAttributes() call will be faked.
*/
AV_VAAPI_DRIVER_QUIRK_SURFACE_ATTRIBUTES = (1 << 3),
};
/**
* VAAPI connection details.
*
* Allocated as AVHWDeviceContext.hwctx
*/
typedef struct AVVAAPIDeviceContext {
/**
* The VADisplay handle, to be filled by the user.
*/
VADisplay display;
/**
* Driver quirks to apply - this is filled by av_hwdevice_ctx_init(),
* with reference to a table of known drivers, unless the
* AV_VAAPI_DRIVER_QUIRK_USER_SET bit is already present. The user
* may need to refer to this field when performing any later
* operations using VAAPI with the same VADisplay.
*/
unsigned int driver_quirks;
} AVVAAPIDeviceContext;
/**
* VAAPI-specific data associated with a frame pool.
*
* Allocated as AVHWFramesContext.hwctx.
*/
typedef struct AVVAAPIFramesContext {
/**
* Set by the user to apply surface attributes to all surfaces in
* the frame pool. If null, default settings are used.
*/
VASurfaceAttrib *attributes;
int nb_attributes;
/**
* The surfaces IDs of all surfaces in the pool after creation.
* Only valid if AVHWFramesContext.initial_pool_size was positive.
* These are intended to be used as the render_targets arguments to
* vaCreateContext().
*/
VASurfaceID *surface_ids;
int nb_surfaces;
} AVVAAPIFramesContext;
/**
* VAAPI hardware pipeline configuration details.
*
* Allocated with av_hwdevice_hwconfig_alloc().
*/
typedef struct AVVAAPIHWConfig {
/**
* ID of a VAAPI pipeline configuration.
*/
VAConfigID config_id;
} AVVAAPIHWConfig;
#endif /* AVUTIL_HWCONTEXT_VAAPI_H */
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