1 /* 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_FIX_SOURCE_FILTERBANK_INTERNAL_H_ 12 #define WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_FIX_SOURCE_FILTERBANK_INTERNAL_H_ 13 14 #include "webrtc/typedefs.h" 15 16 #if defined(__cplusplus) || defined(c_plusplus) 17 extern "C" { 18 #endif 19 20 /* Arguments: 21 * io: Input/output, in Q0. 22 * len: Input, sample length. 23 * coefficient: Input. 24 * state: Input/output, filter state, in Q4. 25 */ 26 typedef void (*HighpassFilterFixDec32)(int16_t* io, 27 int16_t len, 28 const int16_t* coefficient, 29 int32_t* state); 30 extern HighpassFilterFixDec32 WebRtcIsacfix_HighpassFilterFixDec32; 31 32 void WebRtcIsacfix_HighpassFilterFixDec32C(int16_t* io, 33 int16_t len, 34 const int16_t* coefficient, 35 int32_t* state); 36 37 #if defined(MIPS_DSP_R1_LE) 38 void WebRtcIsacfix_HighpassFilterFixDec32MIPS(int16_t* io, 39 int16_t len, 40 const int16_t* coefficient, 41 int32_t* state); 42 #endif 43 44 typedef void (*AllpassFilter2FixDec16)( 45 int16_t *data_ch1, // Input and output in channel 1, in Q0 46 int16_t *data_ch2, // Input and output in channel 2, in Q0 47 const int16_t *factor_ch1, // Scaling factor for channel 1, in Q15 48 const int16_t *factor_ch2, // Scaling factor for channel 2, in Q15 49 const int length, // Length of the data buffers 50 int32_t *filter_state_ch1, // Filter state for channel 1, in Q16 51 int32_t *filter_state_ch2); // Filter state for channel 2, in Q16 52 extern AllpassFilter2FixDec16 WebRtcIsacfix_AllpassFilter2FixDec16; 53 54 void WebRtcIsacfix_AllpassFilter2FixDec16C( 55 int16_t *data_ch1, 56 int16_t *data_ch2, 57 const int16_t *factor_ch1, 58 const int16_t *factor_ch2, 59 const int length, 60 int32_t *filter_state_ch1, 61 int32_t *filter_state_ch2); 62 63 #if (defined WEBRTC_DETECT_NEON) || (defined WEBRTC_HAS_NEON) 64 void WebRtcIsacfix_AllpassFilter2FixDec16Neon( 65 int16_t *data_ch1, 66 int16_t *data_ch2, 67 const int16_t *factor_ch1, 68 const int16_t *factor_ch2, 69 const int length, 70 int32_t *filter_state_ch1, 71 int32_t *filter_state_ch2); 72 #endif 73 74 #if defined(MIPS_DSP_R1_LE) 75 void WebRtcIsacfix_AllpassFilter2FixDec16MIPS( 76 int16_t *data_ch1, 77 int16_t *data_ch2, 78 const int16_t *factor_ch1, 79 const int16_t *factor_ch2, 80 const int length, 81 int32_t *filter_state_ch1, 82 int32_t *filter_state_ch2); 83 #endif 84 85 #if defined(__cplusplus) || defined(c_plusplus) 86 } 87 #endif 88 89 #endif 90 /* WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_FIX_SOURCE_FILTERBANK_INTERNAL_H_ */ 91
