Main Page | Class List | File List | Class Members | File Members

nb_celp.h

Go to the documentation of this file.
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 NB_CELP_H 00037 #define NB_CELP_H 00038 00039 #include "modes.h" 00040 #include <speex/speex_bits.h> 00041 #include <speex/speex_callbacks.h> 00042 #include "vbr.h" 00043 #include "filters.h" 00044 00046 typedef struct EncState { 00047 SpeexMode *mode; 00048 int first; 00049 int frameSize; 00050 int subframeSize; 00051 int nbSubframes; 00052 int windowSize; 00053 int lpcSize; 00054 int bufSize; 00055 int min_pitch; 00056 int max_pitch; 00058 int safe_pitch; 00059 int bounded_pitch; 00060 int ol_pitch; 00061 int ol_voiced; 00062 int *pitch; 00063 float gamma1; 00064 float gamma2; 00065 float lag_factor; 00066 float lpc_floor; 00067 float preemph; 00068 float pre_mem; 00069 float pre_mem2; 00070 char *stack; 00071 float *inBuf; 00072 float *frame; 00073 float *excBuf; 00074 float *exc; 00075 float *exc2Buf; 00076 float *exc2; 00077 float *swBuf; 00078 float *sw; 00079 float *innov; 00080 float *window; 00081 float *buf2; 00082 float *autocorr; 00083 float *lagWindow; 00084 float *lpc; 00085 float *lsp; 00086 float *qlsp; 00087 float *old_lsp; 00088 float *old_qlsp; 00089 float *interp_lsp; 00090 float *interp_qlsp; 00091 float *interp_lpc; 00092 float *interp_qlpc; 00093 float *bw_lpc1; 00094 float *bw_lpc2; 00095 float *rc; 00096 float *mem_sp; 00097 float *mem_sw; 00098 float *mem_sw_whole; 00099 float *mem_exc; 00100 float *pi_gain; 00102 VBRState *vbr; 00103 float vbr_quality; 00104 float relative_quality; 00105 int vbr_enabled; 00106 int vad_enabled; 00107 int dtx_enabled; 00108 int dtx_count; 00109 int abr_enabled; 00110 float abr_drift; 00111 float abr_drift2; 00112 float abr_count; 00113 int complexity; 00114 int sampling_rate; 00115 00116 SpeexSubmode **submodes; 00117 int submodeID; 00118 int submodeSelect; 00119 } EncState; 00120 00122 typedef struct DecState { 00123 SpeexMode *mode; 00124 int first; 00125 int count_lost; 00126 int frameSize; 00127 int subframeSize; 00128 int nbSubframes; 00129 int windowSize; 00130 int lpcSize; 00131 int bufSize; 00132 int min_pitch; 00133 int max_pitch; 00134 int sampling_rate; 00135 float last_ol_gain; 00138 float gamma1; 00139 float gamma2; 00140 float preemph; 00141 float pre_mem; 00142 char *stack; 00143 float *inBuf; 00144 float *frame; 00145 float *excBuf; 00146 float *exc; 00147 float *innov; 00148 float *qlsp; 00149 float *old_qlsp; 00150 float *interp_qlsp; 00151 float *interp_qlpc; 00152 float *mem_sp; 00153 float *pi_gain; 00154 int last_pitch; 00155 float last_pitch_gain; 00156 float pitch_gain_buf[3]; 00157 int pitch_gain_buf_idx; 00159 SpeexSubmode **submodes; 00160 int submodeID; 00161 int lpc_enh_enabled; 00162 CombFilterMem *comb_mem; 00163 SpeexCallback speex_callbacks[SPEEX_MAX_CALLBACKS]; 00164 00165 SpeexCallback user_callback; 00166 00167 /*Vocoder data*/ 00168 float voc_m1; 00169 float voc_m2; 00170 float voc_mean; 00171 int voc_offset; 00172 00173 int dtx_enabled; 00174 } DecState; 00175 00177 void *nb_encoder_init(SpeexMode *m); 00178 00180 void nb_encoder_destroy(void *state); 00181 00183 int nb_encode(void *state, float *in, SpeexBits *bits); 00184 00185 00187 void *nb_decoder_init(SpeexMode *m); 00188 00190 void nb_decoder_destroy(void *state); 00191 00193 int nb_decode(void *state, SpeexBits *bits, float *out); 00194 00196 int nb_encoder_ctl(void *state, int request, void *ptr); 00197 00199 int nb_decoder_ctl(void *state, int request, void *ptr); 00200 00201 00202 #endif

Generated on Mon Oct 11 15:42:53 2004 for speex by doxygen 1.3.7