yading@10: /*
yading@10:  * Video Acceleration API (shared data between FFmpeg and the video player)
yading@10:  * HW decode acceleration for MPEG-2, MPEG-4, H.264 and VC-1
yading@10:  *
yading@10:  * Copyright (C) 2008-2009 Splitted-Desktop Systems
yading@10:  *
yading@10:  * This file is part of FFmpeg.
yading@10:  *
yading@10:  * FFmpeg is free software; you can redistribute it and/or
yading@10:  * modify it under the terms of the GNU Lesser General Public
yading@10:  * License as published by the Free Software Foundation; either
yading@10:  * version 2.1 of the License, or (at your option) any later version.
yading@10:  *
yading@10:  * FFmpeg is distributed in the hope that it will be useful,
yading@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@10:  * Lesser General Public License for more details.
yading@10:  *
yading@10:  * You should have received a copy of the GNU Lesser General Public
yading@10:  * License along with FFmpeg; if not, write to the Free Software
yading@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@10:  */
yading@10: 
yading@10: #ifndef AVCODEC_VAAPI_H
yading@10: #define AVCODEC_VAAPI_H
yading@10: 
yading@10: /**
yading@10:  * @file
yading@10:  * @ingroup lavc_codec_hwaccel_vaapi
yading@10:  * Public libavcodec VA API header.
yading@10:  */
yading@10: 
yading@10: #include <stdint.h>
yading@10: 
yading@10: /**
yading@10:  * @defgroup lavc_codec_hwaccel_vaapi VA API Decoding
yading@10:  * @ingroup lavc_codec_hwaccel
yading@10:  * @{
yading@10:  */
yading@10: 
yading@10: /**
yading@10:  * This structure is used to share data between the FFmpeg library and
yading@10:  * the client video application.
yading@10:  * This shall be zero-allocated and available as
yading@10:  * AVCodecContext.hwaccel_context. All user members can be set once
yading@10:  * during initialization or through each AVCodecContext.get_buffer()
yading@10:  * function call. In any case, they must be valid prior to calling
yading@10:  * decoding functions.
yading@10:  */
yading@10: struct vaapi_context {
yading@10:     /**
yading@10:      * Window system dependent data
yading@10:      *
yading@10:      * - encoding: unused
yading@10:      * - decoding: Set by user
yading@10:      */
yading@10:     void *display;
yading@10: 
yading@10:     /**
yading@10:      * Configuration ID
yading@10:      *
yading@10:      * - encoding: unused
yading@10:      * - decoding: Set by user
yading@10:      */
yading@10:     uint32_t config_id;
yading@10: 
yading@10:     /**
yading@10:      * Context ID (video decode pipeline)
yading@10:      *
yading@10:      * - encoding: unused
yading@10:      * - decoding: Set by user
yading@10:      */
yading@10:     uint32_t context_id;
yading@10: 
yading@10:     /**
yading@10:      * VAPictureParameterBuffer ID
yading@10:      *
yading@10:      * - encoding: unused
yading@10:      * - decoding: Set by libavcodec
yading@10:      */
yading@10:     uint32_t pic_param_buf_id;
yading@10: 
yading@10:     /**
yading@10:      * VAIQMatrixBuffer ID
yading@10:      *
yading@10:      * - encoding: unused
yading@10:      * - decoding: Set by libavcodec
yading@10:      */
yading@10:     uint32_t iq_matrix_buf_id;
yading@10: 
yading@10:     /**
yading@10:      * VABitPlaneBuffer ID (for VC-1 decoding)
yading@10:      *
yading@10:      * - encoding: unused
yading@10:      * - decoding: Set by libavcodec
yading@10:      */
yading@10:     uint32_t bitplane_buf_id;
yading@10: 
yading@10:     /**
yading@10:      * Slice parameter/data buffer IDs
yading@10:      *
yading@10:      * - encoding: unused
yading@10:      * - decoding: Set by libavcodec
yading@10:      */
yading@10:     uint32_t *slice_buf_ids;
yading@10: 
yading@10:     /**
yading@10:      * Number of effective slice buffer IDs to send to the HW
yading@10:      *
yading@10:      * - encoding: unused
yading@10:      * - decoding: Set by libavcodec
yading@10:      */
yading@10:     unsigned int n_slice_buf_ids;
yading@10: 
yading@10:     /**
yading@10:      * Size of pre-allocated slice_buf_ids
yading@10:      *
yading@10:      * - encoding: unused
yading@10:      * - decoding: Set by libavcodec
yading@10:      */
yading@10:     unsigned int slice_buf_ids_alloc;
yading@10: 
yading@10:     /**
yading@10:      * Pointer to VASliceParameterBuffers
yading@10:      *
yading@10:      * - encoding: unused
yading@10:      * - decoding: Set by libavcodec
yading@10:      */
yading@10:     void *slice_params;
yading@10: 
yading@10:     /**
yading@10:      * Size of a VASliceParameterBuffer element
yading@10:      *
yading@10:      * - encoding: unused
yading@10:      * - decoding: Set by libavcodec
yading@10:      */
yading@10:     unsigned int slice_param_size;
yading@10: 
yading@10:     /**
yading@10:      * Size of pre-allocated slice_params
yading@10:      *
yading@10:      * - encoding: unused
yading@10:      * - decoding: Set by libavcodec
yading@10:      */
yading@10:     unsigned int slice_params_alloc;
yading@10: 
yading@10:     /**
yading@10:      * Number of slices currently filled in
yading@10:      *
yading@10:      * - encoding: unused
yading@10:      * - decoding: Set by libavcodec
yading@10:      */
yading@10:     unsigned int slice_count;
yading@10: 
yading@10:     /**
yading@10:      * Pointer to slice data buffer base
yading@10:      * - encoding: unused
yading@10:      * - decoding: Set by libavcodec
yading@10:      */
yading@10:     const uint8_t *slice_data;
yading@10: 
yading@10:     /**
yading@10:      * Current size of slice data
yading@10:      *
yading@10:      * - encoding: unused
yading@10:      * - decoding: Set by libavcodec
yading@10:      */
yading@10:     uint32_t slice_data_size;
yading@10: };
yading@10: 
yading@10: /* @} */
yading@10: 
yading@10: #endif /* AVCODEC_VAAPI_H */