diff options
Diffstat (limited to 'embdrv/sbc/encoder/srce/sbc_dct_coeffs.c')
| -rw-r--r-- | embdrv/sbc/encoder/srce/sbc_dct_coeffs.c | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/embdrv/sbc/encoder/srce/sbc_dct_coeffs.c b/embdrv/sbc/encoder/srce/sbc_dct_coeffs.c new file mode 100644 index 0000000..c450c27 --- /dev/null +++ b/embdrv/sbc/encoder/srce/sbc_dct_coeffs.c @@ -0,0 +1,200 @@ +/****************************************************************************** + * + * 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 |