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| 1 /*********************************************************************** | 1 /*********************************************************************** | 
| 2 Copyright (c) 2006-2011, Skype Limited. All rights reserved. | 2 Copyright (c) 2006-2011, Skype Limited. All rights reserved. | 
| 3 Redistribution and use in source and binary forms, with or without | 3 Redistribution and use in source and binary forms, with or without | 
| 4 modification, are permitted provided that the following conditions | 4 modification, are permitted provided that the following conditions | 
| 5 are met: | 5 are met: | 
| 6 - Redistributions of source code must retain the above copyright notice, | 6 - Redistributions of source code must retain the above copyright notice, | 
| 7 this list of conditions and the following disclaimer. | 7 this list of conditions and the following disclaimer. | 
| 8 - Redistributions in binary form must reproduce the above copyright | 8 - Redistributions in binary form must reproduce the above copyright | 
| 9 notice, this list of conditions and the following disclaimer in the | 9 notice, this list of conditions and the following disclaimer in the | 
| 10 documentation and/or other materials provided with the distribution. | 10 documentation and/or other materials provided with the distribution. | 
| (...skipping 24 matching lines...) Expand all  Loading... | 
| 35 | 35 | 
| 36 #include "typedef.h" | 36 #include "typedef.h" | 
| 37 #include "resampler_structs.h" | 37 #include "resampler_structs.h" | 
| 38 | 38 | 
| 39 #define RESAMPLER_DOWN_ORDER_FIR0               18 | 39 #define RESAMPLER_DOWN_ORDER_FIR0               18 | 
| 40 #define RESAMPLER_DOWN_ORDER_FIR1               24 | 40 #define RESAMPLER_DOWN_ORDER_FIR1               24 | 
| 41 #define RESAMPLER_DOWN_ORDER_FIR2               36 | 41 #define RESAMPLER_DOWN_ORDER_FIR2               36 | 
| 42 #define RESAMPLER_ORDER_FIR_12                  8 | 42 #define RESAMPLER_ORDER_FIR_12                  8 | 
| 43 | 43 | 
| 44 /* Tables for 2x downsampler */ | 44 /* Tables for 2x downsampler */ | 
| 45 extern const opus_int16 silk_resampler_down2_0; | 45 static const opus_int16 silk_resampler_down2_0 = 9872; | 
| 46 extern const opus_int16 silk_resampler_down2_1; | 46 static const opus_int16 silk_resampler_down2_1 = 39809 - 65536; | 
| 47 | 47 | 
| 48 /* Tables for 2x upsampler, high quality */ | 48 /* Tables for 2x upsampler, high quality */ | 
| 49 extern const opus_int16 silk_resampler_up2_hq_0[ 3 ]; | 49 static const opus_int16 silk_resampler_up2_hq_0[ 3 ] = { 1746, 14986, 39083 - 65
    536 }; | 
| 50 extern const opus_int16 silk_resampler_up2_hq_1[ 3 ]; | 50 static const opus_int16 silk_resampler_up2_hq_1[ 3 ] = { 6854, 25769, 55542 - 65
    536 }; | 
| 51 | 51 | 
| 52 /* Tables with IIR and FIR coefficients for fractional downsamplers */ | 52 /* Tables with IIR and FIR coefficients for fractional downsamplers */ | 
| 53 extern const opus_int16 silk_Resampler_3_4_COEFS[ 2 + 3 * RESAMPLER_DOWN_ORDER_F
    IR0 / 2 ]; | 53 extern const opus_int16 silk_Resampler_3_4_COEFS[ 2 + 3 * RESAMPLER_DOWN_ORDER_F
    IR0 / 2 ]; | 
| 54 extern const opus_int16 silk_Resampler_2_3_COEFS[ 2 + 2 * RESAMPLER_DOWN_ORDER_F
    IR0 / 2 ]; | 54 extern const opus_int16 silk_Resampler_2_3_COEFS[ 2 + 2 * RESAMPLER_DOWN_ORDER_F
    IR0 / 2 ]; | 
| 55 extern const opus_int16 silk_Resampler_1_2_COEFS[ 2 +     RESAMPLER_DOWN_ORDER_F
    IR1 / 2 ]; | 55 extern const opus_int16 silk_Resampler_1_2_COEFS[ 2 +     RESAMPLER_DOWN_ORDER_F
    IR1 / 2 ]; | 
| 56 extern const opus_int16 silk_Resampler_1_3_COEFS[ 2 +     RESAMPLER_DOWN_ORDER_F
    IR2 / 2 ]; | 56 extern const opus_int16 silk_Resampler_1_3_COEFS[ 2 +     RESAMPLER_DOWN_ORDER_F
    IR2 / 2 ]; | 
| 57 extern const opus_int16 silk_Resampler_1_4_COEFS[ 2 +     RESAMPLER_DOWN_ORDER_F
    IR2 / 2 ]; | 57 extern const opus_int16 silk_Resampler_1_4_COEFS[ 2 +     RESAMPLER_DOWN_ORDER_F
    IR2 / 2 ]; | 
| 58 extern const opus_int16 silk_Resampler_1_6_COEFS[ 2 +     RESAMPLER_DOWN_ORDER_F
    IR2 / 2 ]; | 58 extern const opus_int16 silk_Resampler_1_6_COEFS[ 2 +     RESAMPLER_DOWN_ORDER_F
    IR2 / 2 ]; | 
| 59 extern const opus_int16 silk_Resampler_2_3_COEFS_LQ[ 2 + 2 * 2 ]; | 59 extern const opus_int16 silk_Resampler_2_3_COEFS_LQ[ 2 + 2 * 2 ]; | 
| 60 | 60 | 
| 61 /* Table with interplation fractions of 1/24, 3/24, ..., 23/24 */ | 61 /* Table with interplation fractions of 1/24, 3/24, ..., 23/24 */ | 
| 62 extern const opus_int16 silk_resampler_frac_FIR_12[ 12 ][ RESAMPLER_ORDER_FIR_12
     / 2 ]; | 62 extern const opus_int16 silk_resampler_frac_FIR_12[ 12 ][ RESAMPLER_ORDER_FIR_12
     / 2 ]; | 
| 63 | 63 | 
| 64 #ifdef  __cplusplus | 64 #ifdef  __cplusplus | 
| 65 } | 65 } | 
| 66 #endif | 66 #endif | 
| 67 | 67 | 
| 68 #endif /* SILK_FIX_RESAMPLER_ROM_H */ | 68 #endif /* SILK_FIX_RESAMPLER_ROM_H */ | 
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