Blame libcelt/cwrs.h

Packit 664db3
/* (C) 2007-2008 Timothy Terriberry */
Packit 664db3
/*
Packit 664db3
   Redistribution and use in source and binary forms, with or without
Packit 664db3
   modification, are permitted provided that the following conditions
Packit 664db3
   are met:
Packit 664db3
   
Packit 664db3
   - Redistributions of source code must retain the above copyright
Packit 664db3
   notice, this list of conditions and the following disclaimer.
Packit 664db3
   
Packit 664db3
   - Redistributions in binary form must reproduce the above copyright
Packit 664db3
   notice, this list of conditions and the following disclaimer in the
Packit 664db3
   documentation and/or other materials provided with the distribution.
Packit 664db3
   
Packit 664db3
   - Neither the name of the Xiph.org Foundation nor the names of its
Packit 664db3
   contributors may be used to endorse or promote products derived from
Packit 664db3
   this software without specific prior written permission.
Packit 664db3
   
Packit 664db3
   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
Packit 664db3
   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
Packit 664db3
   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
Packit 664db3
   A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
Packit 664db3
   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
Packit 664db3
   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
Packit 664db3
   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
Packit 664db3
   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
Packit 664db3
   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
Packit 664db3
   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
Packit 664db3
   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Packit 664db3
*/
Packit 664db3
Packit 664db3
#ifndef CWRS_H
Packit 664db3
#define CWRS_H
Packit 664db3
Packit 664db3
#include "arch.h"
Packit 664db3
#include "stack_alloc.h"
Packit 664db3
#include "entenc.h"
Packit 664db3
#include "entdec.h"
Packit 664db3
Packit 664db3
/* Returns log of an integer with fractional accuracy */
Packit 664db3
int log2_frac64(ec_uint64 val, int frac);
Packit 664db3
/* Whether the CWRS codebook will fit into 32 bits */
Packit 664db3
int fits_in32(int _n, int _m);
Packit 664db3
/* Whether the CWRS codebook will fit into 64 bits */
Packit 664db3
int fits_in64(int _n, int _m);
Packit 664db3
Packit 664db3
/* 32-bit versions */
Packit 664db3
celt_uint32_t ncwrs_u32(int _n,int _m,celt_uint32_t *_u);
Packit 664db3
Packit 664db3
void cwrsi32(int _n,int _m,celt_uint32_t _i,int *_y,celt_uint32_t *_u);
Packit 664db3
Packit 664db3
celt_uint32_t icwrs32(int _n,int _m,celt_uint32_t *_nc,const int *_y,
Packit 664db3
 celt_uint32_t *_u);
Packit 664db3
Packit 664db3
/* 64-bit versions */
Packit 664db3
celt_uint64_t ncwrs_u64(int _n,int _m,celt_uint64_t *_u);
Packit 664db3
Packit 664db3
void cwrsi64(int _n,int _m,celt_uint64_t _i,int *_y,celt_uint64_t *_u);
Packit 664db3
Packit 664db3
celt_uint64_t icwrs64(int _n,int _m,celt_uint64_t *_nc,const int *_y,
Packit 664db3
 celt_uint64_t *_u);
Packit 664db3
Packit 664db3
Packit 664db3
void get_required_bits(celt_int16_t *bits, int N, int K, int frac);
Packit 664db3
Packit 664db3
void encode_pulses(int *_y, int N, int K, ec_enc *enc);
Packit 664db3
Packit 664db3
void decode_pulses(int *_y, int N, int K, ec_dec *dec);
Packit 664db3
Packit 664db3
#endif /* CWRS_H */