mirror of
https://foundry.openuru.org/gitblit/r/CWE-ou-minkata.git
synced 2025-07-20 12:19:10 +00:00
Reorganization of SDK placement and references for CWE-ou
Phase 1: reorganize StaticSDK directories to better reflect origin of each SDK, platform, etc. Add SDK-binary as submodule.
This commit is contained in:
rarified
@ -0,0 +1,202 @@
|
||||
/* Copyright (C) 2002 Jean-Marc Valin */
|
||||
/**
|
||||
@file nb_celp.h
|
||||
@brief Narrowband CELP encoder/decoder
|
||||
*/
|
||||
/*
|
||||
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 NB_CELP_H
|
||||
#define NB_CELP_H
|
||||
|
||||
#include "modes.h"
|
||||
#include "speex_bits.h"
|
||||
#include "speex_callbacks.h"
|
||||
#include "vbr.h"
|
||||
#include "filters.h"
|
||||
|
||||
/**Structure representing the full state of the narrowband encoder*/
|
||||
typedef struct EncState {
|
||||
SpeexMode *mode; /**< Mode corresponding to the state */
|
||||
int first; /**< Is this the first frame? */
|
||||
int frameSize; /**< Size of frames */
|
||||
int subframeSize; /**< Size of sub-frames */
|
||||
int nbSubframes; /**< Number of sub-frames */
|
||||
int windowSize; /**< Analysis (LPC) window length */
|
||||
int lpcSize; /**< LPC order */
|
||||
int bufSize; /**< Buffer size */
|
||||
int min_pitch; /**< Minimum pitch value allowed */
|
||||
int max_pitch; /**< Maximum pitch value allowed */
|
||||
|
||||
int safe_pitch; /**< Don't use too large values for pitch (in case we lose a packet) */
|
||||
int bounded_pitch; /**< Next frame should not rely on previous frames for pitch */
|
||||
int ol_pitch; /**< Open-loop pitch */
|
||||
int ol_voiced; /**< Open-loop voiced/non-voiced decision */
|
||||
int *pitch;
|
||||
float gamma1; /**< Perceptual filter: A(z/gamma1) */
|
||||
float gamma2; /**< Perceptual filter: A(z/gamma2) */
|
||||
float lag_factor; /**< Lag windowing Gaussian width */
|
||||
float lpc_floor; /**< Noise floor multiplier for A[0] in LPC analysis*/
|
||||
float preemph; /**< Pre-emphasis: P(z) = 1 - a*z^-1*/
|
||||
float pre_mem; /**< 1-element memory for pre-emphasis */
|
||||
float pre_mem2; /**< 1-element memory for pre-emphasis */
|
||||
char *stack; /**< Pseudo-stack allocation for temporary memory */
|
||||
float *inBuf; /**< Input buffer (original signal) */
|
||||
float *frame; /**< Start of original frame */
|
||||
float *excBuf; /**< Excitation buffer */
|
||||
float *exc; /**< Start of excitation frame */
|
||||
float *exc2Buf; /**< "Pitch enhanced" excitation */
|
||||
float *exc2; /**< "Pitch enhanced" excitation */
|
||||
float *swBuf; /**< Weighted signal buffer */
|
||||
float *sw; /**< Start of weighted signal frame */
|
||||
float *innov; /**< Innovation for the frame */
|
||||
float *window; /**< Temporary (Hanning) window */
|
||||
float *buf2; /**< 2nd temporary buffer */
|
||||
float *autocorr; /**< auto-correlation */
|
||||
float *lagWindow; /**< Window applied to auto-correlation */
|
||||
float *lpc; /**< LPCs for current frame */
|
||||
float *lsp; /**< LSPs for current frame */
|
||||
float *qlsp; /**< Quantized LSPs for current frame */
|
||||
float *old_lsp; /**< LSPs for previous frame */
|
||||
float *old_qlsp; /**< Quantized LSPs for previous frame */
|
||||
float *interp_lsp; /**< Interpolated LSPs */
|
||||
float *interp_qlsp; /**< Interpolated quantized LSPs */
|
||||
float *interp_lpc; /**< Interpolated LPCs */
|
||||
float *interp_qlpc; /**< Interpolated quantized LPCs */
|
||||
float *bw_lpc1; /**< LPCs after bandwidth expansion by gamma1 for perceptual weighting*/
|
||||
float *bw_lpc2; /**< LPCs after bandwidth expansion by gamma2 for perceptual weighting*/
|
||||
float *rc; /**< Reflection coefficients */
|
||||
float *mem_sp; /**< Filter memory for signal synthesis */
|
||||
float *mem_sw; /**< Filter memory for perceptually-weighted signal */
|
||||
float *mem_sw_whole; /**< Filter memory for perceptually-weighted signal (whole frame)*/
|
||||
float *mem_exc; /**< Filter memory for excitation (whole frame) */
|
||||
float *pi_gain; /**< Gain of LPC filter at theta=pi (fe/2) */
|
||||
|
||||
VBRState *vbr; /**< State of the VBR data */
|
||||
float vbr_quality; /**< Quality setting for VBR encoding */
|
||||
float relative_quality; /**< Relative quality that will be needed by VBR */
|
||||
int vbr_enabled; /**< 1 for enabling VBR, 0 otherwise */
|
||||
int vad_enabled; /**< 1 for enabling VAD, 0 otherwise */
|
||||
int dtx_enabled; /**< 1 for enabling DTX, 0 otherwise */
|
||||
int dtx_count; /**< Number of consecutive DTX frames */
|
||||
int abr_enabled; /**< ABR setting (in bps), 0 if off */
|
||||
float abr_drift;
|
||||
float abr_drift2;
|
||||
float abr_count;
|
||||
int complexity; /**< Complexity setting (0-10 from least complex to most complex) */
|
||||
int sampling_rate;
|
||||
|
||||
SpeexSubmode **submodes; /**< Sub-mode data */
|
||||
int submodeID; /**< Activated sub-mode */
|
||||
int submodeSelect; /**< Mode chosen by the user (may differ from submodeID if VAD is on) */
|
||||
} EncState;
|
||||
|
||||
/**Structure representing the full state of the narrowband decoder*/
|
||||
typedef struct DecState {
|
||||
SpeexMode *mode; /**< Mode corresponding to the state */
|
||||
int first; /**< Is this the first frame? */
|
||||
int count_lost; /**< Was the last frame lost? */
|
||||
int frameSize; /**< Size of frames */
|
||||
int subframeSize; /**< Size of sub-frames */
|
||||
int nbSubframes; /**< Number of sub-frames */
|
||||
int windowSize; /**< Analysis (LPC) window length */
|
||||
int lpcSize; /**< LPC order */
|
||||
int bufSize; /**< Buffer size */
|
||||
int min_pitch; /**< Minimum pitch value allowed */
|
||||
int max_pitch; /**< Maximum pitch value allowed */
|
||||
int sampling_rate;
|
||||
float last_ol_gain; /**< Open-loop gain for previous frame */
|
||||
|
||||
|
||||
float gamma1; /**< Perceptual filter: A(z/gamma1) */
|
||||
float gamma2; /**< Perceptual filter: A(z/gamma2) */
|
||||
float preemph; /**< Pre-emphasis: P(z) = 1 - a*z^-1*/
|
||||
float pre_mem; /**< 1-element memory for pre-emphasis */
|
||||
char *stack; /**< Pseudo-stack allocation for temporary memory */
|
||||
float *inBuf; /**< Input buffer (original signal) */
|
||||
float *frame; /**< Start of original frame */
|
||||
float *excBuf; /**< Excitation buffer */
|
||||
float *exc; /**< Start of excitation frame */
|
||||
float *innov; /**< Innovation for the frame */
|
||||
float *qlsp; /**< Quantized LSPs for current frame */
|
||||
float *old_qlsp; /**< Quantized LSPs for previous frame */
|
||||
float *interp_qlsp; /**< Interpolated quantized LSPs */
|
||||
float *interp_qlpc; /**< Interpolated quantized LPCs */
|
||||
float *mem_sp; /**< Filter memory for synthesis signal */
|
||||
float *pi_gain; /**< Gain of LPC filter at theta=pi (fe/2) */
|
||||
int last_pitch; /**< Pitch of last correctly decoded frame */
|
||||
float last_pitch_gain; /**< Pitch gain of last correctly decoded frame */
|
||||
float pitch_gain_buf[3]; /**< Pitch gain of last decoded frames */
|
||||
int pitch_gain_buf_idx; /**< Tail of the buffer */
|
||||
|
||||
SpeexSubmode **submodes; /**< Sub-mode data */
|
||||
int submodeID; /**< Activated sub-mode */
|
||||
int lpc_enh_enabled; /**< 1 when LPC enhancer is on, 0 otherwise */
|
||||
CombFilterMem *comb_mem;
|
||||
SpeexCallback speex_callbacks[SPEEX_MAX_CALLBACKS];
|
||||
|
||||
SpeexCallback user_callback;
|
||||
|
||||
/*Vocoder data*/
|
||||
float voc_m1;
|
||||
float voc_m2;
|
||||
float voc_mean;
|
||||
int voc_offset;
|
||||
|
||||
int dtx_enabled;
|
||||
} DecState;
|
||||
|
||||
/** Initializes encoder state*/
|
||||
void *nb_encoder_init(SpeexMode *m);
|
||||
|
||||
/** De-allocates encoder state resources*/
|
||||
void nb_encoder_destroy(void *state);
|
||||
|
||||
/** Encodes one frame*/
|
||||
int nb_encode(void *state, float *in, SpeexBits *bits);
|
||||
|
||||
|
||||
/** Initializes decoder state*/
|
||||
void *nb_decoder_init(SpeexMode *m);
|
||||
|
||||
/** De-allocates decoder state resources*/
|
||||
void nb_decoder_destroy(void *state);
|
||||
|
||||
/** Decodes one frame*/
|
||||
int nb_decode(void *state, SpeexBits *bits, float *out);
|
||||
|
||||
/** ioctl-like function for controlling a narrowband encoder */
|
||||
int nb_encoder_ctl(void *state, int request, void *ptr);
|
||||
|
||||
/** ioctl-like function for controlling a narrowband decoder */
|
||||
int nb_decoder_ctl(void *state, int request, void *ptr);
|
||||
|
||||
|
||||
#endif
|
||||
Reference in New Issue
Block a user