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modes.h

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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 MODES_H 00037 #define MODES_H 00038 00039 #include <speex/speex.h> 00040 #include <speex/speex_bits.h> 00041 00042 00043 #define NB_SUBMODES 16 00044 #define NB_SUBMODE_BITS 4 00045 00046 #define SB_SUBMODES 8 00047 #define SB_SUBMODE_BITS 3 00048 00049 00051 typedef void (*lsp_quant_func)(float *, float *, int, SpeexBits *); 00052 00054 typedef void (*lsp_unquant_func)(float *, int, SpeexBits *); 00055 00056 00058 typedef int (*ltp_quant_func)(float *, float *, float *, float *, 00059 float *, float *, void *, int, int, float, 00060 int, int, SpeexBits*, char *, float *, float *, int); 00061 00063 typedef void (*ltp_unquant_func)(float *, int, int, float, void *, int, int *, 00064 float *, SpeexBits*, char*, int, int, float); 00065 00066 00068 typedef void (*innovation_quant_func)(float *, float *, float *, float *, void *, int, int, 00069 float *, float *, SpeexBits *, char *, int); 00070 00072 typedef void (*innovation_unquant_func)(float *, void *, int, SpeexBits*, char *); 00073 00075 typedef struct SpeexSubmode { 00076 int lbr_pitch; 00077 int forced_pitch_gain; 00078 int have_subframe_gain; 00079 int double_codebook; 00080 /*LSP functions*/ 00081 lsp_quant_func lsp_quant; 00082 lsp_unquant_func lsp_unquant; 00084 /*Lont-term predictor functions*/ 00085 ltp_quant_func ltp_quant; 00086 ltp_unquant_func ltp_unquant; 00087 void *ltp_params; 00089 /*Quantization of innovation*/ 00090 innovation_quant_func innovation_quant; 00091 innovation_unquant_func innovation_unquant; 00092 void *innovation_params; 00094 /*Synthesis filter enhancement*/ 00095 float lpc_enh_k1; 00096 float lpc_enh_k2; 00097 float comb_gain; 00099 int bits_per_frame; 00100 } SpeexSubmode; 00101 00103 typedef struct SpeexNBMode { 00104 int frameSize; 00105 int subframeSize; 00106 int lpcSize; 00107 int bufSize; 00108 int pitchStart; 00109 int pitchEnd; 00111 float gamma1; 00112 float gamma2; 00113 float lag_factor; 00114 float lpc_floor; 00115 float preemph; 00117 SpeexSubmode *submodes[NB_SUBMODES]; 00118 int defaultSubmode; 00119 int quality_map[11]; 00120 } SpeexNBMode; 00121 00122 00124 typedef struct SpeexSBMode { 00125 SpeexMode *nb_mode; 00126 int frameSize; 00127 int subframeSize; 00128 int lpcSize; 00129 int bufSize; 00130 float gamma1; 00131 float gamma2; 00132 float lag_factor; 00133 float lpc_floor; 00134 float preemph; 00135 float folding_gain; 00136 00137 SpeexSubmode *submodes[SB_SUBMODES]; 00138 int defaultSubmode; 00139 int low_quality_map[11]; 00140 int quality_map[11]; 00141 float (*vbr_thresh)[11]; 00142 int nb_modes; 00143 } SpeexSBMode; 00144 00145 00146 #endif

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