mirror of
https://github.com/ZDoom/gzdoom.git
synced 2024-11-11 15:21:51 +00:00
2e56925c36
installation, not the bundled copies which might not match what is installed. - Upgraded bundled FLAC from version 1.1.2 to version 1.2.1. SVN r575 (trunk)
97 lines
4.5 KiB
C
97 lines
4.5 KiB
C
/* libFLAC - Free Lossless Audio Codec library
|
|
* Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
|
|
*
|
|
* 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 FLAC__PRIVATE__FIXED_H
|
|
#define FLAC__PRIVATE__FIXED_H
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
#endif
|
|
|
|
#include "private/float.h"
|
|
#include "FLAC/format.h"
|
|
|
|
/*
|
|
* FLAC__fixed_compute_best_predictor()
|
|
* --------------------------------------------------------------------
|
|
* Compute the best fixed predictor and the expected bits-per-sample
|
|
* of the residual signal for each order. The _wide() version uses
|
|
* 64-bit integers which is statistically necessary when bits-per-
|
|
* sample + log2(blocksize) > 30
|
|
*
|
|
* IN data[0,data_len-1]
|
|
* IN data_len
|
|
* OUT residual_bits_per_sample[0,FLAC__MAX_FIXED_ORDER]
|
|
*/
|
|
#ifndef FLAC__INTEGER_ONLY_LIBRARY
|
|
unsigned FLAC__fixed_compute_best_predictor(const FLAC__int32 data[], unsigned data_len, FLAC__float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
|
|
# ifndef FLAC__NO_ASM
|
|
# ifdef FLAC__CPU_IA32
|
|
# ifdef FLAC__HAS_NASM
|
|
unsigned FLAC__fixed_compute_best_predictor_asm_ia32_mmx_cmov(const FLAC__int32 data[], unsigned data_len, FLAC__float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
|
|
# endif
|
|
# endif
|
|
# endif
|
|
unsigned FLAC__fixed_compute_best_predictor_wide(const FLAC__int32 data[], unsigned data_len, FLAC__float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
|
|
#else
|
|
unsigned FLAC__fixed_compute_best_predictor(const FLAC__int32 data[], unsigned data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
|
|
unsigned FLAC__fixed_compute_best_predictor_wide(const FLAC__int32 data[], unsigned data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
|
|
#endif
|
|
|
|
/*
|
|
* FLAC__fixed_compute_residual()
|
|
* --------------------------------------------------------------------
|
|
* Compute the residual signal obtained from sutracting the predicted
|
|
* signal from the original.
|
|
*
|
|
* IN data[-order,data_len-1] original signal (NOTE THE INDICES!)
|
|
* IN data_len length of original signal
|
|
* IN order <= FLAC__MAX_FIXED_ORDER fixed-predictor order
|
|
* OUT residual[0,data_len-1] residual signal
|
|
*/
|
|
void FLAC__fixed_compute_residual(const FLAC__int32 data[], unsigned data_len, unsigned order, FLAC__int32 residual[]);
|
|
|
|
/*
|
|
* FLAC__fixed_restore_signal()
|
|
* --------------------------------------------------------------------
|
|
* Restore the original signal by summing the residual and the
|
|
* predictor.
|
|
*
|
|
* IN residual[0,data_len-1] residual signal
|
|
* IN data_len length of original signal
|
|
* IN order <= FLAC__MAX_FIXED_ORDER fixed-predictor order
|
|
* *** IMPORTANT: the caller must pass in the historical samples:
|
|
* IN data[-order,-1] previously-reconstructed historical samples
|
|
* OUT data[0,data_len-1] original signal
|
|
*/
|
|
void FLAC__fixed_restore_signal(const FLAC__int32 residual[], unsigned data_len, unsigned order, FLAC__int32 data[]);
|
|
|
|
#endif
|