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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