mirror of
https://codeberg.org/ashley/poke.git
synced 2024-12-27 07:59:42 +01:00
62 lines
1.6 KiB
C
62 lines
1.6 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2011 Apple Inc. All rights reserved.
|
||
|
|
*
|
||
|
|
* @APPLE_APACHE_LICENSE_HEADER_START@
|
||
|
|
*
|
||
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
* you may not use this file except in compliance with the License.
|
||
|
|
* You may obtain a copy of the License at
|
||
|
|
*
|
||
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
*
|
||
|
|
* Unless required by applicable law or agreed to in writing, software
|
||
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
* See the License for the specific language governing permissions and
|
||
|
|
* limitations under the License.
|
||
|
|
*
|
||
|
|
* @APPLE_APACHE_LICENSE_HEADER_END@
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
File: dplib.h
|
||
|
|
|
||
|
|
Contains: Dynamic Predictor routines
|
||
|
|
|
||
|
|
Copyright: Copyright (C) 2001-2011 Apple, Inc.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __DPLIB_H__
|
||
|
|
#define __DPLIB_H__
|
||
|
|
|
||
|
|
#include <stdint.h>
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
// defines
|
||
|
|
|
||
|
|
#define DENSHIFT_MAX 15
|
||
|
|
#define DENSHIFT_DEFAULT 9
|
||
|
|
#define AINIT 38
|
||
|
|
#define BINIT (-29)
|
||
|
|
#define CINIT (-2)
|
||
|
|
#define NUMCOEPAIRS 16
|
||
|
|
|
||
|
|
// prototypes
|
||
|
|
|
||
|
|
void init_coefs( int16_t * coefs, uint32_t denshift, int32_t numPairs );
|
||
|
|
void copy_coefs( int16_t * srcCoefs, int16_t * dstCoefs, int32_t numPairs );
|
||
|
|
|
||
|
|
// NOTE: these routines read at least "numactive" samples so the i/o buffers must be at least that big
|
||
|
|
|
||
|
|
void pc_block( int32_t * in, int32_t * pc, int32_t num, int16_t * coefs, int32_t numactive, uint32_t chanbits, uint32_t denshift );
|
||
|
|
void unpc_block( int32_t * pc, int32_t * out, int32_t num, int16_t * coefs, int32_t numactive, uint32_t chanbits, uint32_t denshift );
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* __DPLIB_H__ */
|