| /****************************************************************************** |
| * |
| * Copyright (C) 1999-2012 Broadcom Corporation |
| * |
| * 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. |
| * |
| ******************************************************************************/ |
| |
| /****************************************************************************** |
| * |
| * This file contains the coefficient table used for DCT computation in |
| * analysis. |
| * |
| ******************************************************************************/ |
| |
| #include "sbc_encoder.h" |
| /*DCT coeff for 4 sub-band case.*/ |
| #if (SBC_FAST_DCT == FALSE) |
| const SINT16 gas16AnalDCTcoeff4[] = |
| { |
| (SINT16)(0.7071*32768), |
| (SINT16)(0.9239*32768), |
| (SINT16)(1.0000*32767), |
| (SINT16)(0.9239*32768), |
| (SINT16)(0.7071*32768), |
| (SINT16)(0.3827*32768), |
| (SINT16)(0.0000*32768), |
| (SINT16)(-0.3827*32768), |
| |
| (SINT16)(-0.7071*32768), |
| (SINT16)(0.3827*32768), |
| (SINT16)(1.0000*32767), |
| (SINT16)(0.3827*32768), |
| (SINT16)(-0.7071*32768), |
| (SINT16)(-0.9239*32768), |
| (SINT16)(-0.0000*32768), |
| (SINT16)(0.9239*32768), |
| |
| (SINT16)(-0.7071*32768), |
| (SINT16)(-0.3827*32768), |
| (SINT16)(1.0000*32767), |
| (SINT16)(-0.3827*32768), |
| (SINT16)(-0.7071*32768), |
| (SINT16)(0.9239*32768), |
| (SINT16)(0.0000*32768), |
| (SINT16)(-0.9239*32768), |
| |
| (SINT16)(0.7071*32768), |
| (SINT16)(-0.9239*32768), |
| (SINT16)(1.0000*32767), |
| (SINT16)(-0.9239*32768), |
| (SINT16)(0.7071*32768), |
| (SINT16)(-0.3827*32768), |
| (SINT16)(-0.0000*32768), |
| (SINT16)(0.3827*32768) |
| }; |
| |
| /*DCT coeff for 8 sub-band case.*/ |
| const SINT16 gas16AnalDCTcoeff8[] = |
| { |
| (SINT16)(0.7071*32768), |
| (SINT16)(0.8315*32768), |
| (SINT16)(0.9239*32768), |
| (SINT16)(0.9808*32768), |
| (SINT16)(1.0000*32767), |
| (SINT16)(0.9808*32768), |
| (SINT16)(0.9239*32768), |
| (SINT16)(0.8315*32768), |
| (SINT16)(0.7071*32768), |
| (SINT16)(0.5556*32768), |
| (SINT16)(0.3827*32768), |
| (SINT16)(0.1951*32768), |
| (SINT16)(0.0000*32768), |
| (SINT16)(-0.1951*32768), |
| (SINT16)(-0.3827*32768), |
| (SINT16)(-0.5556*32768), |
| (SINT16)(-0.7071*32768), |
| (SINT16)(-0.1951*32768), |
| (SINT16)(0.3827*32768), |
| (SINT16)(0.8315*32768), |
| (SINT16)(1.0000*32767), |
| (SINT16)(0.8315*32768), |
| (SINT16)(0.3827*32768), |
| (SINT16)(-0.1951*32768), |
| (SINT16)(-0.7071*32768), |
| (SINT16)(-0.9808*32768), |
| (SINT16)(-0.9239*32768), |
| (SINT16)(-0.5556*32768), |
| (SINT16)(-0.0000*32768), |
| (SINT16)(0.5556*32768), |
| (SINT16)(0.9239*32768), |
| (SINT16)(0.9808*32768), |
| (SINT16)(-0.7071*32768), |
| (SINT16)(-0.9808*32768), |
| (SINT16)(-0.3827*32768), |
| (SINT16)(0.5556*32768), |
| (SINT16)(1.0000*32767), |
| (SINT16)(0.5556*32768), |
| (SINT16)(-0.3827*32768), |
| (SINT16)(-0.9808*32768), |
| (SINT16)(-0.7071*32768), |
| (SINT16)(0.1951*32768), |
| (SINT16)(0.9239*32768), |
| (SINT16)(0.8315*32768), |
| (SINT16)(0.0000*32768), |
| (SINT16)(-0.8315*32768), |
| (SINT16)(-0.9239*32768), |
| (SINT16)(-0.1951*32768), |
| (SINT16)(0.7071*32768), |
| (SINT16)(-0.5556*32768), |
| (SINT16)(-0.9239*32768), |
| (SINT16)(0.1951*32768), |
| (SINT16)(1.0000*32767), |
| (SINT16)(0.1951*32768), |
| (SINT16)(-0.9239*32768), |
| (SINT16)(-0.5556*32768), |
| (SINT16)(0.7071*32768), |
| (SINT16)(0.8315*32768), |
| (SINT16)(-0.3827*32768), |
| (SINT16)(-0.9808*32768), |
| (SINT16)(-0.0000*32768), |
| (SINT16)(0.9808*32768), |
| (SINT16)(0.3827*32768), |
| (SINT16)(-0.8315*32768), |
| (SINT16)(0.7071*32768), |
| (SINT16)(0.5556*32768), |
| (SINT16)(-0.9239*32768), |
| (SINT16)(-0.1951*32768), |
| (SINT16)(1.0000*32767), |
| (SINT16)(-0.1951*32768), |
| (SINT16)(-0.9239*32768), |
| (SINT16)(0.5556*32768), |
| (SINT16)(0.7071*32768), |
| (SINT16)(-0.8315*32768), |
| (SINT16)(-0.3827*32768), |
| (SINT16)(0.9808*32768), |
| (SINT16)(0.0000*32768), |
| (SINT16)(-0.9808*32768), |
| (SINT16)(0.3827*32768), |
| (SINT16)(0.8315*32768), |
| (SINT16)(-0.7071*32768), |
| (SINT16)(0.9808*32768), |
| (SINT16)(-0.3827*32768), |
| (SINT16)(-0.5556*32768), |
| (SINT16)(1.0000*32767), |
| (SINT16)(-0.5556*32768), |
| (SINT16)(-0.3827*32768), |
| (SINT16)(0.9808*32768), |
| (SINT16)(-0.7071*32768), |
| (SINT16)(-0.1951*32768), |
| (SINT16)(0.9239*32768), |
| (SINT16)(-0.8315*32768), |
| (SINT16)(-0.0000*32768), |
| (SINT16)(0.8315*32768), |
| (SINT16)(-0.9239*32768), |
| (SINT16)(0.1951*32768), |
| (SINT16)(-0.7071*32768), |
| (SINT16)(0.1951*32768), |
| (SINT16)(0.3827*32768), |
| (SINT16)(-0.8315*32768), |
| (SINT16)(1.0000*32767), |
| (SINT16)(-0.8315*32768), |
| (SINT16)(0.3827*32768), |
| (SINT16)(0.1951*32768), |
| (SINT16)(-0.7071*32768), |
| (SINT16)(0.9808*32768), |
| (SINT16)(-0.9239*32768), |
| (SINT16)(0.5556*32768), |
| (SINT16)(-0.0000*32768), |
| (SINT16)(-0.5556*32768), |
| (SINT16)(0.9239*32768), |
| (SINT16)(-0.9808*32768), |
| (SINT16)(0.7071*32768), |
| (SINT16)(-0.8315*32768), |
| (SINT16)(0.9239*32768), |
| (SINT16)(-0.9808*32768), |
| (SINT16)(1.0000*32767), |
| (SINT16)(-0.9808*32768), |
| (SINT16)(0.9239*32768), |
| (SINT16)(-0.8315*32768), |
| (SINT16)(0.7071*32768), |
| (SINT16)(-0.5556*32768), |
| (SINT16)(0.3827*32768), |
| (SINT16)(-0.1951*32768), |
| (SINT16)(-0.0000*32768), |
| (SINT16)(0.1951*32768), |
| (SINT16)(-0.3827*32768), |
| (SINT16)(0.5556*32768) |
| }; |
| #endif |