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1 /*\r
2  ** Copyright 2003-2010, VisualOn, Inc.\r
3  **\r
4  ** Licensed under the Apache License, Version 2.0 (the "License");\r
5  ** you may not use this file except in compliance with the License.\r
6  ** You may obtain a copy of the License at\r
7  **\r
8  **     http://www.apache.org/licenses/LICENSE-2.0\r
9  **\r
10  ** Unless required by applicable law or agreed to in writing, software\r
11  ** distributed under the License is distributed on an "AS IS" BASIS,\r
12  ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
13  ** See the License for the specific language governing permissions and\r
14  ** limitations under the License.\r
15  */\r
16 /*******************************************************************************\r
17         File:           quantize.h\r
18 \r
19         Content:        Quantization functions\r
20 \r
21 *******************************************************************************/
22
23 #ifndef _QUANTIZE_H_
24 #define _QUANTIZE_H_
25 #include "typedefs.h"
26
27 /* quantizing */
28
29 #define MAX_QUANT 8191
30
31 void QuantizeSpectrum(Word16 sfbCnt, 
32                       Word16 maxSfbPerGroup,
33                       Word16 sfbPerGroup,
34                       Word16 *sfbOffset, Word32 *mdctSpectrum,
35                       Word16 globalGain, Word16 *scalefactors,
36                       Word16 *quantizedSpectrum);
37
38 Word32 calcSfbDist(const Word32 *spec,
39                    Word16  sfbWidth,
40                    Word16  gain);
41
42 #endif /* _QUANTIZE_H_ */