1 /* 2 * Copyright (c) 2007-2013 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_jpeg.h 27 * \brief JPEG encoding API 28 * 29 * This file contains the \ref api_enc_jpeg "JPEG encoding API". 30 */ 31 32 #ifndef VA_ENC_JPEG_H 33 #define VA_ENC_JPEG_H 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 /** 40 * \defgroup api_enc_jpeg JPEG encoding API 41 * 42 * @{ 43 */ 44 45 /** 46 * \brief JPEG Encoding Picture Parameter Buffer Structure 47 * 48 * This structure conveys picture level parameters. 49 * 50 */ 51 typedef struct _VAEncPictureParameterBufferJPEG 52 { 53 /** \brief holds reconstructed picture. */ 54 VASurfaceID reconstructed_picture; 55 /** \brief picture width. */ 56 unsigned short picture_width; 57 /** \brief picture height. */ 58 unsigned short picture_height; 59 /** \brief holds coded data. */ 60 VABufferID coded_buf; 61 62 /** 63 * \brief pic_flags 64 * 65 */ 66 union { 67 struct { 68 /** 69 * \brief profile: 70 * 0 - Baseline, 1 - Extended, 2 - Lossless, 3 - Hierarchical 71 */ 72 unsigned int profile : 2; 73 /** 74 * \brief progressive: 75 * 0 - sequential, 1 - extended, 2 - progressive 76 */ 77 unsigned int progressive : 1; 78 /** 79 * \brief huffman: 80 * 0 - arithmetic, 1 - huffman 81 */ 82 unsigned int huffman : 1; 83 /** 84 * \brief interleaved: 85 * 0 - non interleaved, 1 - interleaved 86 */ 87 unsigned int interleaved : 1; 88 /** 89 * \brief differential: 90 * 0 - non differential, 1 - differential 91 */ 92 unsigned int differential : 1; 93 } bits; 94 unsigned int value; 95 } pic_flags; 96 97 /** \brief number of bits per sample. */ 98 unsigned char sample_bit_depth; 99 /** \brief total number of scans in image. */ 100 unsigned char num_scan; 101 /** \brief number of image components in frame. */ 102 unsigned short num_components; 103 /** \brief Component identifier (Ci). */ 104 unsigned char component_id[4]; 105 /** \brief Quantization table selector (Tqi). */ 106 unsigned char quantiser_table_selector[4]; 107 /** \brief number from 1 to 100 that specifies quality of image. */ 108 unsigned char quality; 109 110 } VAEncPictureParameterBufferJPEG; 111 112 113 /** 114 * \brief Slice parameter for JPEG encoding. 115 * 116 * This structure conveys slice (scan) level parameters. 117 * 118 */ 119 typedef struct _VAEncSliceParameterBufferJPEG { 120 /** \brief Restart interval definition (Ri). */ 121 unsigned short restart_interval; 122 /** \brief number of image components in a scan. */ 123 unsigned short num_components; 124 struct { 125 /** \brief Scan component selector (Csj). */ 126 unsigned char component_selector; 127 /** \brief DC entropy coding table selector (Tdj). */ 128 unsigned char dc_table_selector; 129 /** \brief AC entropy coding table selector (Taj). */ 130 unsigned char ac_table_selector; 131 } components[4]; 132 } VAEncSliceParameterBufferJPEG; 133 134 /** 135 * \brief Quantization table for JPEG encoding. 136 * 137 */ 138 typedef struct _VAQMatrixBufferJPEG 139 { 140 /** \brief load luma quantization table. */ 141 int load_lum_quantiser_matrix; 142 /** \brief load chroma quantization table. */ 143 int load_chroma_quantiser_matrix; 144 /** \brief luma quantization table. */ 145 unsigned char lum_quantiser_matrix[64]; 146 /** \brief chroma quantization table. */ 147 unsigned char chroma_quantiser_matrix[64]; 148 } VAQMatrixBufferJPEG; 149 150 /**@}*/ 151 152 #include <va/va_dec_jpeg.h> 153 154 #ifdef __cplusplus 155 } 156 #endif 157 158 #endif /* VA_ENC_JPEG_H */ 159