Speex 1.2~beta4
|
00001 /* Copyright (C) 2002 Jean-Marc Valin */ 00006 /* 00007 Redistribution and use in source and binary forms, with or without 00008 modification, are permitted provided that the following conditions 00009 are met: 00010 00011 - Redistributions of source code must retain the above copyright 00012 notice, this list of conditions and the following disclaimer. 00013 00014 - Redistributions in binary form must reproduce the above copyright 00015 notice, this list of conditions and the following disclaimer in the 00016 documentation and/or other materials provided with the distribution. 00017 00018 - Neither the name of the Xiph.org Foundation nor the names of its 00019 contributors may be used to endorse or promote products derived from 00020 this software without specific prior written permission. 00021 00022 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 00023 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00024 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 00025 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR 00026 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00027 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 00028 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00029 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00030 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00031 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00032 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00033 00034 */ 00035 00036 #ifndef BITS_H 00037 #define BITS_H 00038 00044 #ifdef __cplusplus 00045 extern "C" { 00046 #endif 00047 00049 typedef struct SpeexBits { 00050 char *chars; 00051 int nbBits; 00052 int charPtr; 00053 int bitPtr; 00054 int owner; 00055 int overflow; 00056 int buf_size; 00057 int reserved1; 00058 void *reserved2; 00059 } SpeexBits; 00060 00062 void speex_bits_init(SpeexBits *bits); 00063 00065 void speex_bits_init_buffer(SpeexBits *bits, void *buff, int buf_size); 00066 00068 void speex_bits_set_bit_buffer(SpeexBits *bits, void *buff, int buf_size); 00069 00071 void speex_bits_destroy(SpeexBits *bits); 00072 00074 void speex_bits_reset(SpeexBits *bits); 00075 00077 void speex_bits_rewind(SpeexBits *bits); 00078 00080 void speex_bits_read_from(SpeexBits *bits, char *bytes, int len); 00081 00088 void speex_bits_read_whole_bytes(SpeexBits *bits, char *bytes, int len); 00089 00097 int speex_bits_write(SpeexBits *bits, char *bytes, int max_len); 00098 00100 int speex_bits_write_whole_bytes(SpeexBits *bits, char *bytes, int max_len); 00101 00107 void speex_bits_pack(SpeexBits *bits, int data, int nbBits); 00108 00115 int speex_bits_unpack_signed(SpeexBits *bits, int nbBits); 00116 00123 unsigned int speex_bits_unpack_unsigned(SpeexBits *bits, int nbBits); 00124 00130 int speex_bits_nbytes(SpeexBits *bits); 00131 00138 unsigned int speex_bits_peek_unsigned(SpeexBits *bits, int nbBits); 00139 00146 int speex_bits_peek(SpeexBits *bits); 00147 00153 void speex_bits_advance(SpeexBits *bits, int n); 00154 00160 int speex_bits_remaining(SpeexBits *bits); 00161 00167 void speex_bits_insert_terminator(SpeexBits *bits); 00168 00169 #ifdef __cplusplus 00170 } 00171 #endif 00172 00173 /* @} */ 00174 #endif