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| 1 /* |
| 2 * Copyright (c) 2012 Intel Corporation. All Rights Reserved. |
| 3 * |
| 4 * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 * copy of this software and associated documentation files (the |
| 6 * "Software"), to deal in the Software without restriction, including |
| 7 * without limitation the rights to use, copy, modify, merge, publish, |
| 8 * distribute, sub license, and/or sell copies of the Software, and to |
| 9 * permit persons to whom the Software is furnished to do so, subject to |
| 10 * the following conditions: |
| 11 * |
| 12 * The above copyright notice and this permission notice (including the |
| 13 * next paragraph) shall be included in all copies or substantial portions |
| 14 * of the Software. |
| 15 * |
| 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
| 19 * IN NO EVENT SHALL INTEL AND/OR ITS SUPPLIERS BE LIABLE FOR |
| 20 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| 21 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| 22 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 23 */ |
| 24 |
| 25 /** |
| 26 * \file va_enc_mpeg2.h |
| 27 * \brief The MPEG-2 encoding API |
| 28 * |
| 29 * This file contains the \ref api_enc_mpeg2 "MPEG-2 encoding API". |
| 30 */ |
| 31 |
| 32 #ifndef _VA_ENC_MPEG2_H_ |
| 33 #define _VA_ENC_MPEG2_H_ |
| 34 |
| 35 #ifdef __cplusplus |
| 36 extern "C" { |
| 37 #endif |
| 38 |
| 39 /** |
| 40 * \defgroup api_enc_mpeg2 MPEG-2 encoding API |
| 41 * |
| 42 * @{ |
| 43 */ |
| 44 |
| 45 /** |
| 46 * \brief MPEG-2 Quantization Matrix Buffer |
| 47 * |
| 48 */ |
| 49 typedef VAIQMatrixBufferMPEG2 VAQMatrixBufferMPEG2; |
| 50 |
| 51 /** |
| 52 * \brief Packed header types specific to MPEG-2 encoding. |
| 53 * |
| 54 * Types of packed headers generally used for MPEG-2 encoding. |
| 55 */ |
| 56 typedef enum { |
| 57 /** |
| 58 * \brief Packed Sequence Parameter Set (SPS). |
| 59 * |
| 60 */ |
| 61 VAEncPackedHeaderMPEG2_SPS = VAEncPackedHeaderSequence, |
| 62 /** |
| 63 * \brief Packed Picture Parameter Set (PPS). |
| 64 * |
| 65 */ |
| 66 VAEncPackedHeaderMPEG2_PPS = VAEncPackedHeaderPicture, |
| 67 /** |
| 68 * \brief Packed slice header. |
| 69 * |
| 70 */ |
| 71 VAEncPackedHeaderMPEG2_Slice = VAEncPackedHeaderSlice, |
| 72 } VAEncPackedHeaderTypeMPEG2; |
| 73 |
| 74 /** |
| 75 * \brief Sequence parameter for MPEG-2 encoding |
| 76 * |
| 77 * This structure holds information for \c sequence_header() and |
| 78 * sequence_extension(). |
| 79 * |
| 80 * If packed sequence headers mode is used, i.e. if the encoding |
| 81 * pipeline was configured with the #VA_ENC_PACKED_HEADER_SEQUENCE |
| 82 * flag, then the driver expects two more buffers to be provided to |
| 83 * the same \c vaRenderPicture() as this buffer: |
| 84 * - a #VAEncPackedHeaderParameterBuffer with type set to |
| 85 * VAEncPackedHeaderType::VAEncPackedHeaderSequence ; |
| 86 * - a #VAEncPackedHeaderDataBuffer which holds the actual packed |
| 87 * header data. |
| 88 * |
| 89 */ |
| 90 typedef struct _VAEncSequenceParameterBufferMPEG2 { |
| 91 /** \brief Period between I frames. */ |
| 92 unsigned int intra_period; |
| 93 /** \brief Period between I/P frames. */ |
| 94 unsigned int ip_period; |
| 95 /** \brief Picture width. |
| 96 * |
| 97 * A 14bits unsigned inter, the lower 12bits |
| 98 * is horizontal_size_value, and the upper |
| 99 * 2bits is \c horizontal_size_extension |
| 100 * |
| 101 */ |
| 102 unsigned short picture_width; |
| 103 /** \brief Picture height. |
| 104 * |
| 105 * A 14bits unsigned inter, the lower 12bits |
| 106 * is vertical_size_value, and the upper 2bits is |
| 107 * vertical_size_size_extension |
| 108 * |
| 109 */ |
| 110 unsigned short picture_height; |
| 111 /** |
| 112 * \brief Initial bitrate set for this sequence in CBR or VBR modes. |
| 113 * |
| 114 * This field represents the initial bitrate value for this |
| 115 * sequence if CBR or VBR mode is used, i.e. if the encoder |
| 116 * pipeline was created with a #VAConfigAttribRateControl |
| 117 * attribute set to either \ref VA_RC_CBR or \ref VA_RC_VBR. |
| 118 * |
| 119 * bits_per_second may be derived from bit_rate. |
| 120 * |
| 121 */ |
| 122 unsigned int bits_per_second; |
| 123 /** |
| 124 * \brief Frame rate |
| 125 * |
| 126 * Derived from frame_rate_value, frame_rate_extension_n and |
| 127 * frame_rate_extension_d |
| 128 * |
| 129 */ |
| 130 float frame_rate; |
| 131 /** \brief Same as the element in sequence_header() */ |
| 132 unsigned short aspect_ratio_information; |
| 133 /** \brief Define the size of VBV */ |
| 134 unsigned int vbv_buffer_size; |
| 135 |
| 136 union { |
| 137 struct { |
| 138 /** \brief Same as the element in Sequence extension() */ |
| 139 unsigned int profile_and_level_indication : 8; |
| 140 /** \brief Same as the element in Sequence extension() */ |
| 141 unsigned int progressive_sequence : 1; |
| 142 /** \brief Same as the element in Sequence extension() */ |
| 143 unsigned int chroma_format : 2; |
| 144 /** \brief Same as the element in Sequence extension() */ |
| 145 unsigned int low_delay : 1; |
| 146 /** \brief Same as the element in Sequence extension() */ |
| 147 unsigned int frame_rate_extension_n : 2; |
| 148 /** \brief Same as the element in Sequence extension() */ |
| 149 unsigned int frame_rate_extension_d : 5; |
| 150 } bits; |
| 151 unsigned int value; |
| 152 } sequence_extension; |
| 153 |
| 154 /** \brief Flag to indicate the following GOP header are being updated */ |
| 155 unsigned int new_gop_header; |
| 156 |
| 157 union { |
| 158 struct { |
| 159 /** \brief Time code */ |
| 160 unsigned int time_code : 25; |
| 161 /** \brief Same as the element in GOP header */ |
| 162 unsigned int closed_gop : 1; |
| 163 /** \brief SAme as the element in GOP header */ |
| 164 unsigned int broken_link : 1; |
| 165 } bits; |
| 166 unsigned int value; |
| 167 } gop_header; |
| 168 } VAEncSequenceParameterBufferMPEG2; |
| 169 |
| 170 /** |
| 171 * \brief Picture parameter for MPEG-2 encoding |
| 172 * |
| 173 * This structure holds information for picture_header() and |
| 174 * picture_coding_extension() |
| 175 * |
| 176 * If packed picture headers mode is used, i.e. if the encoding |
| 177 * pipeline was configured with the #VA_ENC_PACKED_HEADER_PICTURE |
| 178 * flag, then the driver expects two more buffers to be provided to |
| 179 * the same \c vaRenderPicture() as this buffer: |
| 180 * - a #VAEncPackedHeaderParameterBuffer with type set to |
| 181 * VAEncPackedHeaderType::VAEncPackedHeaderPicture ; |
| 182 * - a #VAEncPackedHeaderDataBuffer which holds the actual packed |
| 183 * header data. |
| 184 * |
| 185 */ |
| 186 typedef struct _VAEncPictureParameterBufferMPEG2 { |
| 187 /** \brief Forward reference picture */ |
| 188 VASurfaceID forward_reference_picture; |
| 189 /** \brief Backward reference picture */ |
| 190 VASurfaceID backward_reference_picture; |
| 191 /** \brief Reconstructed(decoded) picture */ |
| 192 VASurfaceID reconstructed_picture; |
| 193 /** |
| 194 * \brief Output encoded bitstream. |
| 195 * |
| 196 * \ref coded_buf has type #VAEncCodedBufferType. It should be |
| 197 * large enough to hold the compressed NAL slice and possibly SPS |
| 198 * and PPS NAL units. |
| 199 */ |
| 200 VABufferID coded_buf; |
| 201 /** |
| 202 * \brief Flag to indicate the picture is the last one or not. |
| 203 * |
| 204 * This fields holds 0 if the picture to be encoded is not |
| 205 * the last one in the stream. Otherwise, it |
| 206 * is \ref MPEG2_LAST_PICTURE_EOSTREAM. |
| 207 */ |
| 208 unsigned char last_picture; |
| 209 /** \brief Picture type */ |
| 210 VAEncPictureType picture_type; |
| 211 /** \brief Same as the element in picture_header() */ |
| 212 unsigned int temporal_reference; |
| 213 /** \brief Same as the element in picture_header() */ |
| 214 unsigned int vbv_delay; |
| 215 /** \brief Same as the element in Picture coding extension */ |
| 216 unsigned char f_code[2][2]; |
| 217 union { |
| 218 struct { |
| 219 /** \brief Same as the element in Picture coding extension */ |
| 220 unsigned int intra_dc_precision : 2; |
| 221 /** \brief Same as the element in Picture coding extension */ |
| 222 unsigned int picture_structure : 2; |
| 223 /** \brief Same as the element in Picture coding extension */ |
| 224 unsigned int top_field_first : 1; |
| 225 /** \brief Same as the element in Picture coding extension */ |
| 226 unsigned int frame_pred_frame_dct : 1; |
| 227 /** \brief Same as the element in Picture coding extension */ |
| 228 unsigned int concealment_motion_vectors : 1; |
| 229 /** \brief Same as the element in Picture coding extension */ |
| 230 unsigned int q_scale_type : 1; |
| 231 /** \brief Same as the element in Picture coding extension */ |
| 232 unsigned int intra_vlc_format : 1; |
| 233 /** \brief Same as the element in Picture coding extension */ |
| 234 unsigned int alternate_scan : 1; |
| 235 /** \brief Same as the element in Picture coding extension */ |
| 236 unsigned int repeat_first_field : 1; |
| 237 /** \brief Same as the element in Picture coding extension */ |
| 238 unsigned int progressive_frame : 1; |
| 239 /** \brief Same as the element in Picture coding extension */ |
| 240 unsigned int composite_display_flag : 1; |
| 241 } bits; |
| 242 unsigned int value; |
| 243 } picture_coding_extension; |
| 244 |
| 245 /* \brief Parameters for composite display |
| 246 * |
| 247 * Valid only when omposite_display_flag is 1 |
| 248 */ |
| 249 union { |
| 250 struct { |
| 251 /** \brief Same as the element in Picture coding extension */
|
| 252 unsigned int v_axis : 1; |
| 253 /** \brief Same as the element in Picture coding extension */ |
| 254 unsigned int field_sequence : 3; |
| 255 /** \brief Same as the element in Picture coding extension */ |
| 256 unsigned int sub_carrier : 1; |
| 257 /** \brief Same as the element in Picture coding extension */ |
| 258 unsigned int burst_amplitude : 7; |
| 259 /** \brief Same as the element in Picture coding extension */ |
| 260 unsigned int sub_carrier_phase : 8; |
| 261 } bits; |
| 262 unsigned int value; |
| 263 } composite_display; |
| 264 } VAEncPictureParameterBufferMPEG2; |
| 265 |
| 266 /** |
| 267 * \brief Slice parameter for MPEG-2 encoding |
| 268 * |
| 269 */ |
| 270 typedef struct _VAEncSliceParameterBufferMPEG2 { |
| 271 /** \brief Starting MB address for this slice. */ |
| 272 unsigned int macroblock_address; |
| 273 /** \brief Number of macroblocks in this slice. */ |
| 274 unsigned int num_macroblocks; |
| 275 /** \brief Same as the element in slice() */ |
| 276 int quantiser_scale_code; |
| 277 /** \brief Flag to indicate intra slice */ |
| 278 int is_intra_slice; |
| 279 } VAEncSliceParameterBufferMPEG2; |
| 280 |
| 281 /**@}*/ |
| 282 |
| 283 #ifdef __cplusplus |
| 284 } |
| 285 #endif |
| 286 |
| 287 #endif /* _VA_ENC_MPEG2_H_ */ |
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