1/* Implementation header.
2
3   Copyright (C) 2022-2024 Free Software Foundation, Inc.
4
5   This file is part of libsframe.
6
7   This program is free software; you can redistribute it and/or modify
8   it under the terms of the GNU General Public License as published by
9   the Free Software Foundation; either version 3 of the License, or
10   (at your option) any later version.
11
12   This program is distributed in the hope that it will be useful,
13   but WITHOUT ANY WARRANTY; without even the implied warranty of
14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15   GNU General Public License for more details.
16
17   You should have received a copy of the GNU General Public License
18   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
19
20#ifndef _SFRAME_IMPL_H
21#define _SFRAME_IMPL_H
22
23#include "sframe-api.h"
24
25#ifdef  __cplusplus
26extern "C"
27{
28#endif
29
30#include <assert.h>
31#define sframe_assert(expr) (assert (expr))
32
33struct sframe_decoder_ctx
34{
35  /* SFrame header.  */
36  sframe_header sfd_header;
37  /* SFrame function desc entries table.  */
38  sframe_func_desc_entry *sfd_funcdesc;
39  /* SFrame FRE table.  */
40  char *sfd_fres;
41  /* Number of bytes needed for SFrame FREs.  */
42  int sfd_fre_nbytes;
43  /* Reference to the internally malloc'd buffer, if any, for endian flipping
44     the original input buffer before decoding.  */
45  void *sfd_buf;
46};
47
48typedef struct sf_fde_tbl sf_fde_tbl;
49typedef struct sf_fre_tbl sf_fre_tbl;
50
51struct sframe_encoder_ctx
52{
53  /* SFrame header.  */
54  sframe_header sfe_header;
55  /* SFrame function desc entries table.  */
56  sf_fde_tbl *sfe_funcdesc;
57  /* SFrame FRE table.  */
58  sf_fre_tbl *sfe_fres;
59  /* Number of bytes needed for SFrame FREs.  */
60  uint32_t sfe_fre_nbytes;
61  /* SFrame output data buffer.  */
62  char *sfe_data;
63  /* Size of the SFrame output data buffer.  */
64  size_t sfe_data_size;
65};
66
67#ifdef  __cplusplus
68}
69#endif
70
71#endif /* _SFRAME_IMPL_H */
72