src/third_party/webrtc/modules/audio_coding/codecs/isac/fix/source/lpc_masking_model.h

   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 /*
  12  * lpc_masking_model.h
  13  *
  14  * LPC functions
  15  *
  16  */
  17
  18 #ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_FIX_SOURCE_LPC_MASKING_MODEL_H_
  19 #define WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_FIX_SOURCE_LPC_MASKING_MODEL_H_
  20
  21 #ifdef __cplusplus
  22 extern "C" {
  23 #endif
  24
  25 #include "structs.h"
  26
  27 void WebRtcIsacfix_GetVars(const int16_t *input,
  28                            const int16_t *pitchGains_Q12,
  29                            uint32_t *oldEnergy,
  30                            int16_t *varscale);
  31
  32 void WebRtcIsacfix_GetLpcCoef(int16_t *inLoQ0,
  33                               int16_t *inHiQ0,
  34                               MaskFiltstr_enc *maskdata,
  35                               int16_t snrQ10,
  36                               const int16_t *pitchGains_Q12,
  37                               int32_t *gain_lo_hiQ17,
  38                               int16_t *lo_coeffQ15,
  39                               int16_t *hi_coeffQ15);
  40
  41 typedef int32_t (*CalculateResidualEnergy)(int lpc_order,
  42                                            int32_t q_val_corr,
  43                                            int q_val_polynomial,
  44                                            int16_t* a_polynomial,
  45                                            int32_t* corr_coeffs,
  46                                            int* q_val_residual_energy);
  47 extern CalculateResidualEnergy WebRtcIsacfix_CalculateResidualEnergy;
  48
  49 int32_t WebRtcIsacfix_CalculateResidualEnergyC(int lpc_order,
  50                                                int32_t q_val_corr,
  51                                                int q_val_polynomial,
  52                                                int16_t* a_polynomial,
  53                                                int32_t* corr_coeffs,
  54                                                int* q_val_residual_energy);
  55
  56 #if (defined WEBRTC_DETECT_ARM_NEON) || (defined WEBRTC_ARCH_ARM_NEON)
  57 int32_t WebRtcIsacfix_CalculateResidualEnergyNeon(int lpc_order,
  58                                                   int32_t q_val_corr,
  59                                                   int q_val_polynomial,
  60                                                   int16_t* a_polynomial,
  61                                                   int32_t* corr_coeffs,
  62                                                   int* q_val_residual_energy);
  63 #endif
  64
  65 #if defined(MIPS_DSP_R2_LE)
  66 int32_t WebRtcIsacfix_CalculateResidualEnergyMIPS(int lpc_order,
  67                                                   int32_t q_val_corr,
  68                                                   int q_val_polynomial,
  69                                                   int16_t* a_polynomial,
  70                                                   int32_t* corr_coeffs,
  71                                                   int* q_val_residual_energy);
  72 #endif
  73
  74 #ifdef __cplusplus
  75 } /* extern "C" */
  76 #endif
  77
  78 #endif /* WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_FIX_SOURCE_LPC_MASKING_MODEL_H_ */