1 /* |
|
2 * Video Acceleration API (shared data between Libav and the video player) |
|
3 * HW decode acceleration for MPEG-2, MPEG-4, H.264 and VC-1 |
|
4 * |
|
5 * Copyright (C) 2008-2009 Splitted-Desktop Systems |
|
6 * |
|
7 * This file is part of Libav. |
|
8 * |
|
9 * Libav 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. |
|
13 * |
|
14 * Libav 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. |
|
18 * |
|
19 * You should have received a copy of the GNU Lesser General Public |
|
20 * License along with Libav; if not, write to the Free Software |
|
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
|
22 */ |
|
23 |
|
24 #ifndef AVCODEC_VAAPI_H |
|
25 #define AVCODEC_VAAPI_H |
|
26 |
|
27 /** |
|
28 * @file |
|
29 * @ingroup lavc_codec_hwaccel_vaapi |
|
30 * Public libavcodec VA API header. |
|
31 */ |
|
32 |
|
33 #include <stdint.h> |
|
34 |
|
35 /** |
|
36 * @defgroup lavc_codec_hwaccel_vaapi VA API Decoding |
|
37 * @ingroup lavc_codec_hwaccel |
|
38 * @{ |
|
39 */ |
|
40 |
|
41 /** |
|
42 * This structure is used to share data between the Libav library and |
|
43 * the client video application. |
|
44 * This shall be zero-allocated and available as |
|
45 * AVCodecContext.hwaccel_context. All user members can be set once |
|
46 * during initialization or through each AVCodecContext.get_buffer() |
|
47 * function call. In any case, they must be valid prior to calling |
|
48 * decoding functions. |
|
49 */ |
|
50 struct vaapi_context { |
|
51 /** |
|
52 * Window system dependent data |
|
53 * |
|
54 * - encoding: unused |
|
55 * - decoding: Set by user |
|
56 */ |
|
57 void *display; |
|
58 |
|
59 /** |
|
60 * Configuration ID |
|
61 * |
|
62 * - encoding: unused |
|
63 * - decoding: Set by user |
|
64 */ |
|
65 uint32_t config_id; |
|
66 |
|
67 /** |
|
68 * Context ID (video decode pipeline) |
|
69 * |
|
70 * - encoding: unused |
|
71 * - decoding: Set by user |
|
72 */ |
|
73 uint32_t context_id; |
|
74 |
|
75 /** |
|
76 * VAPictureParameterBuffer ID |
|
77 * |
|
78 * - encoding: unused |
|
79 * - decoding: Set by libavcodec |
|
80 */ |
|
81 uint32_t pic_param_buf_id; |
|
82 |
|
83 /** |
|
84 * VAIQMatrixBuffer ID |
|
85 * |
|
86 * - encoding: unused |
|
87 * - decoding: Set by libavcodec |
|
88 */ |
|
89 uint32_t iq_matrix_buf_id; |
|
90 |
|
91 /** |
|
92 * VABitPlaneBuffer ID (for VC-1 decoding) |
|
93 * |
|
94 * - encoding: unused |
|
95 * - decoding: Set by libavcodec |
|
96 */ |
|
97 uint32_t bitplane_buf_id; |
|
98 |
|
99 /** |
|
100 * Slice parameter/data buffer IDs |
|
101 * |
|
102 * - encoding: unused |
|
103 * - decoding: Set by libavcodec |
|
104 */ |
|
105 uint32_t *slice_buf_ids; |
|
106 |
|
107 /** |
|
108 * Number of effective slice buffer IDs to send to the HW |
|
109 * |
|
110 * - encoding: unused |
|
111 * - decoding: Set by libavcodec |
|
112 */ |
|
113 unsigned int n_slice_buf_ids; |
|
114 |
|
115 /** |
|
116 * Size of pre-allocated slice_buf_ids |
|
117 * |
|
118 * - encoding: unused |
|
119 * - decoding: Set by libavcodec |
|
120 */ |
|
121 unsigned int slice_buf_ids_alloc; |
|
122 |
|
123 /** |
|
124 * Pointer to VASliceParameterBuffers |
|
125 * |
|
126 * - encoding: unused |
|
127 * - decoding: Set by libavcodec |
|
128 */ |
|
129 void *slice_params; |
|
130 |
|
131 /** |
|
132 * Size of a VASliceParameterBuffer element |
|
133 * |
|
134 * - encoding: unused |
|
135 * - decoding: Set by libavcodec |
|
136 */ |
|
137 unsigned int slice_param_size; |
|
138 |
|
139 /** |
|
140 * Size of pre-allocated slice_params |
|
141 * |
|
142 * - encoding: unused |
|
143 * - decoding: Set by libavcodec |
|
144 */ |
|
145 unsigned int slice_params_alloc; |
|
146 |
|
147 /** |
|
148 * Number of slices currently filled in |
|
149 * |
|
150 * - encoding: unused |
|
151 * - decoding: Set by libavcodec |
|
152 */ |
|
153 unsigned int slice_count; |
|
154 |
|
155 /** |
|
156 * Pointer to slice data buffer base |
|
157 * - encoding: unused |
|
158 * - decoding: Set by libavcodec |
|
159 */ |
|
160 const uint8_t *slice_data; |
|
161 |
|
162 /** |
|
163 * Current size of slice data |
|
164 * |
|
165 * - encoding: unused |
|
166 * - decoding: Set by libavcodec |
|
167 */ |
|
168 uint32_t slice_data_size; |
|
169 }; |
|
170 |
|
171 /* @} */ |
|
172 |
|
173 #endif /* AVCODEC_VAAPI_H */ |
|