vaapi.h (4001B)
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 */