2 * Video Acceleration API (shared data between FFmpeg and the video player)
3 * HW decode acceleration for MPEG-2, MPEG-4, H.264 and VC-1
5 * Copyright (C) 2008-2009 Splitted-Desktop Systems
7 * This file is part of FFmpeg.
9 * FFmpeg is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * FFmpeg is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with FFmpeg; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 #ifndef AVCODEC_VAAPI_H
25 #define AVCODEC_VAAPI_H
30 * \defgroup VAAPI_Decoding VA API Decoding
36 * This structure is used to share data between the FFmpeg library and
37 * the client video application.
38 * This shall be zero-allocated and available as
39 * AVCodecContext.hwaccel_context. All user members can be set once
40 * during initialization or through each AVCodecContext.get_buffer()
41 * function call. In any case, they must be valid prior to calling
44 struct vaapi_context
{
46 * Window system dependent data
49 * - decoding: Set by user
57 * - decoding: Set by user
62 * Context ID (video decode pipeline)
65 * - decoding: Set by user
70 * VAPictureParameterBuffer ID
73 * - decoding: Set by libavcodec
75 VABufferID pic_param_buf_id
;
81 * - decoding: Set by libavcodec
83 VABufferID iq_matrix_buf_id
;
86 * VABitPlaneBuffer ID (for VC-1 decoding)
89 * - decoding: Set by libavcodec
91 VABufferID bitplane_buf_id
;
94 * Slice parameter/data buffer IDs
97 * - decoding: Set by libavcodec
99 VABufferID
*slice_buf_ids
;
102 * Number of effective slice buffer IDs to send to the HW
105 * - decoding: Set by libavcodec
107 unsigned int n_slice_buf_ids
;
110 * Size of pre-allocated slice_buf_ids
113 * - decoding: Set by libavcodec
115 unsigned int slice_buf_ids_alloc
;
118 * Picture parameter buffer
121 * - decoding: Set by libavcodec
124 VAPictureParameterBufferMPEG2 mpeg2
;
125 VAPictureParameterBufferMPEG4 mpeg4
;
126 VAPictureParameterBufferH264 h264
;
127 VAPictureParameterBufferVC1 vc1
;
131 * Size of a VAPictureParameterBuffer element
134 * - decoding: Set by libavcodec
136 unsigned int pic_param_size
;
139 * Inverse quantization matrix buffer
142 * - decoding: Set by libavcodec
145 VAIQMatrixBufferMPEG2 mpeg2
;
146 VAIQMatrixBufferMPEG4 mpeg4
;
147 VAIQMatrixBufferH264 h264
;
151 * Size of a VAIQMatrixBuffer element
154 * - decoding: Set by libavcodec
156 unsigned int iq_matrix_size
;
159 * Flag: is quantization matrix present?
162 * - decoding: Set by libavcodec
164 uint8_t iq_matrix_present
;
167 * VC-1 bitplane buffer
170 * - decoding: Set by libavcodec
172 uint8_t *bitplane_buffer
;
175 * Size of VC-1 bitplane buffer
178 * - decoding: Set by libavcodec
180 unsigned int bitplane_buffer_size
;
183 * Pointer to VASliceParameterBuffers
186 * - decoding: Set by libavcodec
191 * Size of a VASliceParameterBuffer element
194 * - decoding: Set by libavcodec
196 unsigned int slice_param_size
;
199 * Size of pre-allocated slice_params
202 * - decoding: Set by libavcodec
204 unsigned int slice_params_alloc
;
207 * Number of slices currently filled in
210 * - decoding: Set by libavcodec
212 unsigned int slice_count
;
215 * Pointer to slice data buffer base
217 * - decoding: Set by libavcodec
219 const uint8_t *slice_data
;
222 * Current size of slice data
225 * - decoding: Set by libavcodec
227 uint32_t slice_data_size
;
232 #endif /* AVCODEC_VAAPI_H */