2 * Copyright (c) 2011 Apple Inc. All rights reserved.
4 * @APPLE_APACHE_LICENSE_HEADER_START@
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
18 * @APPLE_APACHE_LICENSE_HEADER_END@
24 Contains: Dynamic Predictor routines
26 Copyright: Copyright (C) 2001-2011 Apple, Inc.
40 #define DENSHIFT_MAX 15
41 #define DENSHIFT_DEFAULT 9
45 #define NUMCOEPAIRS 16
49 void init_coefs( int16_t * coefs, uint32_t denshift, int32_t numPairs );
50 void copy_coefs( int16_t * srcCoefs, int16_t * dstCoefs, int32_t numPairs );
52 // NOTE: these routines read at least "numactive" samples so the i/o buffers must be at least that big
54 void pc_block( int32_t * in, int32_t * pc, int32_t num, int16_t * coefs, int32_t numactive, uint32_t chanbits, uint32_t denshift );
55 void unpc_block( int32_t * pc, int32_t * out, int32_t num, int16_t * coefs, int32_t numactive, uint32_t chanbits, uint32_t denshift );
61 #endif /* __DPLIB_H__ */