| Index: speex/libspeex/modes.h
|
| ===================================================================
|
| --- speex/libspeex/modes.h (revision 0)
|
| +++ speex/libspeex/modes.h (revision 0)
|
| @@ -0,0 +1,161 @@
|
| +/* Copyright (C) 2002-2006 Jean-Marc Valin */
|
| +/**
|
| + @file modes.h
|
| + @brief Describes the different modes of the codec
|
| +*/
|
| +/*
|
| + Redistribution and use in source and binary forms, with or without
|
| + modification, are permitted provided that the following conditions
|
| + are met:
|
| +
|
| + - Redistributions of source code must retain the above copyright
|
| + notice, this list of conditions and the following disclaimer.
|
| +
|
| + - Redistributions in binary form must reproduce the above copyright
|
| + notice, this list of conditions and the following disclaimer in the
|
| + documentation and/or other materials provided with the distribution.
|
| +
|
| + - Neither the name of the Xiph.org Foundation nor the names of its
|
| + contributors may be used to endorse or promote products derived from
|
| + this software without specific prior written permission.
|
| +
|
| + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
| + ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
| + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
| + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
|
| + CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
| + EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
| + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
| + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
| + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
| + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
| + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
| +
|
| +*/
|
| +
|
| +#ifndef MODES_H
|
| +#define MODES_H
|
| +
|
| +#include <speex/speex.h>
|
| +#include <speex/speex_bits.h>
|
| +#include "arch.h"
|
| +
|
| +#define NB_SUBMODES 16
|
| +#define NB_SUBMODE_BITS 4
|
| +
|
| +#define SB_SUBMODES 8
|
| +#define SB_SUBMODE_BITS 3
|
| +
|
| +/* Used internally, NOT TO BE USED in applications */
|
| +/** Used internally*/
|
| +#define SPEEX_GET_PI_GAIN 100
|
| +/** Used internally*/
|
| +#define SPEEX_GET_EXC 101
|
| +/** Used internally*/
|
| +#define SPEEX_GET_INNOV 102
|
| +/** Used internally*/
|
| +#define SPEEX_GET_DTX_STATUS 103
|
| +/** Used internally*/
|
| +#define SPEEX_SET_INNOVATION_SAVE 104
|
| +/** Used internally*/
|
| +#define SPEEX_SET_WIDEBAND 105
|
| +
|
| +/** Used internally*/
|
| +#define SPEEX_GET_STACK 106
|
| +
|
| +
|
| +/** Quantizes LSPs */
|
| +typedef void (*lsp_quant_func)(spx_lsp_t *, spx_lsp_t *, int, SpeexBits *);
|
| +
|
| +/** Decodes quantized LSPs */
|
| +typedef void (*lsp_unquant_func)(spx_lsp_t *, int, SpeexBits *);
|
| +
|
| +
|
| +/** Long-term predictor quantization */
|
| +typedef int (*ltp_quant_func)(spx_word16_t *, spx_word16_t *, spx_coef_t *, spx_coef_t *,
|
| + spx_coef_t *, spx_sig_t *, const void *, int, int, spx_word16_t,
|
| + int, int, SpeexBits*, char *, spx_word16_t *, spx_word16_t *, int, int, int, spx_word32_t *);
|
| +
|
| +/** Long-term un-quantize */
|
| +typedef void (*ltp_unquant_func)(spx_word16_t *, spx_word32_t *, int, int, spx_word16_t, const void *, int, int *,
|
| + spx_word16_t *, SpeexBits*, char*, int, int, spx_word16_t, int);
|
| +
|
| +
|
| +/** Innovation quantization function */
|
| +typedef void (*innovation_quant_func)(spx_word16_t *, spx_coef_t *, spx_coef_t *, spx_coef_t *, const void *, int, int,
|
| + spx_sig_t *, spx_word16_t *, SpeexBits *, char *, int, int);
|
| +
|
| +/** Innovation unquantization function */
|
| +typedef void (*innovation_unquant_func)(spx_sig_t *, const void *, int, SpeexBits*, char *, spx_int32_t *);
|
| +
|
| +/** Description of a Speex sub-mode (wither narrowband or wideband */
|
| +typedef struct SpeexSubmode {
|
| + int lbr_pitch; /**< Set to -1 for "normal" modes, otherwise encode pitch using a global pitch and allowing a +- lbr_pitch variation (for low not-rates)*/
|
| + int forced_pitch_gain; /**< Use the same (forced) pitch gain for all sub-frames */
|
| + int have_subframe_gain; /**< Number of bits to use as sub-frame innovation gain */
|
| + int double_codebook; /**< Apply innovation quantization twice for higher quality (and higher bit-rate)*/
|
| + /*LSP functions*/
|
| + lsp_quant_func lsp_quant; /**< LSP quantization function */
|
| + lsp_unquant_func lsp_unquant; /**< LSP unquantization function */
|
| +
|
| + /*Long-term predictor functions*/
|
| + ltp_quant_func ltp_quant; /**< Long-term predictor (pitch) quantizer */
|
| + ltp_unquant_func ltp_unquant; /**< Long-term predictor (pitch) un-quantizer */
|
| + const void *ltp_params; /**< Pitch parameters (options) */
|
| +
|
| + /*Quantization of innovation*/
|
| + innovation_quant_func innovation_quant; /**< Innovation quantization */
|
| + innovation_unquant_func innovation_unquant; /**< Innovation un-quantization */
|
| + const void *innovation_params; /**< Innovation quantization parameters*/
|
| +
|
| + spx_word16_t comb_gain; /**< Gain of enhancer comb filter */
|
| +
|
| + int bits_per_frame; /**< Number of bits per frame after encoding*/
|
| +} SpeexSubmode;
|
| +
|
| +/** Struct defining the encoding/decoding mode*/
|
| +typedef struct SpeexNBMode {
|
| + int frameSize; /**< Size of frames used for encoding */
|
| + int subframeSize; /**< Size of sub-frames used for encoding */
|
| + int lpcSize; /**< Order of LPC filter */
|
| + int pitchStart; /**< Smallest pitch value allowed */
|
| + int pitchEnd; /**< Largest pitch value allowed */
|
| +
|
| + spx_word16_t gamma1; /**< Perceptual filter parameter #1 */
|
| + spx_word16_t gamma2; /**< Perceptual filter parameter #2 */
|
| + spx_word16_t lpc_floor; /**< Noise floor for LPC analysis */
|
| +
|
| + const SpeexSubmode *submodes[NB_SUBMODES]; /**< Sub-mode data for the mode */
|
| + int defaultSubmode; /**< Default sub-mode to use when encoding */
|
| + int quality_map[11]; /**< Mode corresponding to each quality setting */
|
| +} SpeexNBMode;
|
| +
|
| +
|
| +/** Struct defining the encoding/decoding mode for SB-CELP (wideband) */
|
| +typedef struct SpeexSBMode {
|
| + const SpeexMode *nb_mode; /**< Embedded narrowband mode */
|
| + int frameSize; /**< Size of frames used for encoding */
|
| + int subframeSize; /**< Size of sub-frames used for encoding */
|
| + int lpcSize; /**< Order of LPC filter */
|
| + spx_word16_t gamma1; /**< Perceptual filter parameter #1 */
|
| + spx_word16_t gamma2; /**< Perceptual filter parameter #1 */
|
| + spx_word16_t lpc_floor; /**< Noise floor for LPC analysis */
|
| + spx_word16_t folding_gain;
|
| +
|
| + const SpeexSubmode *submodes[SB_SUBMODES]; /**< Sub-mode data for the mode */
|
| + int defaultSubmode; /**< Default sub-mode to use when encoding */
|
| + int low_quality_map[11]; /**< Mode corresponding to each quality setting */
|
| + int quality_map[11]; /**< Mode corresponding to each quality setting */
|
| +#ifndef DISABLE_VBR
|
| + const float (*vbr_thresh)[11];
|
| +#endif
|
| + int nb_modes;
|
| +} SpeexSBMode;
|
| +
|
| +int speex_encode_native(void *state, spx_word16_t *in, SpeexBits *bits);
|
| +int speex_decode_native(void *state, SpeexBits *bits, spx_word16_t *out);
|
| +
|
| +int nb_mode_query(const void *mode, int request, void *ptr);
|
| +int wb_mode_query(const void *mode, int request, void *ptr);
|
| +
|
| +#endif
|
|
|
| Property changes on: speex/libspeex/modes.h
|
| ___________________________________________________________________
|
| Name: svn:executable
|
| + *
|
|
|
|
|