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      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