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 26 extern "C" 27 { 28 #endif 29 30 #include <assert.h> 31 #define sframe_assert(expr) (assert (expr)) 32 33 struct 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 48 typedef struct sf_fde_tbl sf_fde_tbl; 49 typedef struct sf_fre_tbl sf_fre_tbl; 50 51 struct 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