diff options
Diffstat (limited to 'pjmedia/src/pjmedia-codec/speex/filters.h')
-rw-r--r-- | pjmedia/src/pjmedia-codec/speex/filters.h | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/pjmedia/src/pjmedia-codec/speex/filters.h b/pjmedia/src/pjmedia-codec/speex/filters.h deleted file mode 100644 index b29aa211..00000000 --- a/pjmedia/src/pjmedia-codec/speex/filters.h +++ /dev/null @@ -1,96 +0,0 @@ -/* Copyright (C) 2002 Jean-Marc Valin */ -/** - @file filters.h - @brief Various analysis/synthesis filters -*/ -/* - 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 FILTERS_H -#define FILTERS_H - -#include "misc.h" - -spx_word16_t compute_rms(const spx_sig_t *x, int len); -spx_word16_t compute_rms16(const spx_word16_t *x, int len); -void signal_mul(const spx_sig_t *x, spx_sig_t *y, spx_word32_t scale, int len); -void signal_div(const spx_word16_t *x, spx_word16_t *y, spx_word32_t scale, int len); - -#ifdef FIXED_POINT - -int normalize16(const spx_sig_t *x, spx_word16_t *y, spx_sig_t max_scale, int len); - -#endif - - -#define HIGHPASS_NARROWBAND 0 -#define HIGHPASS_WIDEBAND 2 -#define HIGHPASS_INPUT 0 -#define HIGHPASS_OUTPUT 1 -#define HIGHPASS_IRS 4 - -void highpass(const spx_word16_t *x, spx_word16_t *y, int len, int filtID, spx_mem_t *mem); - - -void qmf_decomp(const spx_word16_t *xx, const spx_word16_t *aa, spx_sig_t *, spx_sig_t *y2, int N, int M, spx_word16_t *mem, char *stack); -void fir_mem_up(const spx_sig_t *x, const spx_word16_t *a, spx_sig_t *y, int N, int M, spx_word32_t *mem, char *stack); - - -void filter_mem2(const spx_sig_t *x, const spx_coef_t *num, const spx_coef_t *den, spx_sig_t *y, int N, int ord, spx_mem_t *mem); -void fir_mem2(const spx_sig_t *x, const spx_coef_t *num, spx_sig_t *y, int N, int ord, spx_mem_t *mem); -void iir_mem2(const spx_sig_t *x, const spx_coef_t *den, spx_sig_t *y, int N, int ord, spx_mem_t *mem); - -void filter_mem16(const spx_word16_t *x, const spx_coef_t *num, const spx_coef_t *den, spx_word16_t *y, int N, int ord, spx_mem_t *mem, char *stack); -void iir_mem16(const spx_word16_t *x, const spx_coef_t *den, spx_word16_t *y, int N, int ord, spx_mem_t *mem, char *stack); -void fir_mem16(const spx_word16_t *x, const spx_coef_t *num, spx_word16_t *y, int N, int ord, spx_mem_t *mem, char *stack); - -/* Apply bandwidth expansion on LPC coef */ -void bw_lpc(spx_word16_t , const spx_coef_t *lpc_in, spx_coef_t *lpc_out, int order); - - - -void syn_percep_zero(const spx_sig_t *x, const spx_coef_t *ak, const spx_coef_t *awk1, const spx_coef_t *awk2, spx_sig_t *y, int N, int ord, char *stack); - -void residue_percep_zero(const spx_sig_t *xx, const spx_coef_t *ak, const spx_coef_t *awk1, const spx_coef_t *awk2, spx_sig_t *y, int N, int ord, char *stack); - -void compute_impulse_response(const spx_coef_t *ak, const spx_coef_t *awk1, const spx_coef_t *awk2, spx_word16_t *y, int N, int ord, char *stack); - -void multicomb( -spx_word16_t *exc, /*decoded excitation*/ -spx_word16_t *new_exc, /*enhanced excitation*/ -spx_coef_t *ak, /*LPC filter coefs*/ -int p, /*LPC order*/ -int nsf, /*sub-frame size*/ -int pitch, /*pitch period*/ -int max_pitch, /*pitch gain (3-tap)*/ -spx_word16_t comb_gain, /*gain of comb filter*/ -char *stack -); - -#endif |