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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. #ifdef __cplusplus
  153. }
  154. #endif
  155.  
  156. #endif /* VA_ENC_JPEG_H */
  157.