third_party/libva/va/va_enc_jpeg.h

   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 #ifdef __cplusplus
 153 }
 154 #endif
 155
 156 #endif /* VA_ENC_JPEG_H */