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comparison lib/libavcodec/vaapi.h @ 2134:992d2e6f907d

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preparation for libavcodec
author zipi
date Tue, 31 Dec 2013 14:52:14 +0000
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2133:e378232bfd36 2134:992d2e6f907d
1 /*
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
4 *
5 * Copyright (C) 2008-2009 Splitted-Desktop Systems
6 *
7 * This file is part of FFmpeg.
8 *
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.
13 *
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.
18 *
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
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 FFmpeg 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 */