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Diffstat (limited to 'silk/SKP_Silk_main_FIX.h')
| m--------- | silk | 6 | ||||
| -rw-r--r-- | silk/SKP_Silk_main_FIX.h | 244 |
2 files changed, 244 insertions, 6 deletions
diff --git a/silk b/silk deleted file mode 160000 -Subproject 8a8b76efeeccaccf402b0b2b4e469980d0a4831 diff --git a/silk/SKP_Silk_main_FIX.h b/silk/SKP_Silk_main_FIX.h new file mode 100644 index 00000000..b72516b0 --- /dev/null +++ b/silk/SKP_Silk_main_FIX.h @@ -0,0 +1,244 @@ +/***********************************************************************
+Copyright (c) 2006-2011, Skype Limited. All rights reserved.
+Redistribution and use in source and binary forms, with or without
+modification, (subject to the limitations in the disclaimer below)
+are permitted provided that the following conditions are met:
+- Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+- Redistributions in binary form must reproduce the above copyright
+notice, this list of conditions and the following disclaimer in the
+documentation and/or other materials provided with the distribution.
+- Neither the name of Skype Limited, nor the names of specific
+contributors, may be used to endorse or promote products derived from
+this software without specific prior written permission.
+NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
+BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
+BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+***********************************************************************/
+
+#ifndef SKP_SILK_MAIN_FIX_H
+#define SKP_SILK_MAIN_FIX_H
+
+#include "SKP_Silk_SigProc_FIX.h"
+#include "SKP_Silk_structs_FIX.h"
+#include "SKP_Silk_control.h"
+#include "SKP_Silk_main.h"
+#include "SKP_Silk_PLC.h"
+#include "SKP_debug.h"
+#include "entenc.h"
+
+#ifndef FORCE_CPP_BUILD
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+#endif
+
+/*********************/
+/* Encoder Functions */
+/*********************/
+
+/* Encoder main function */
+SKP_int SKP_Silk_encode_frame_FIX(
+ SKP_Silk_encoder_state_FIX *psEnc, /* I/O Pointer to Silk FIX encoder state */
+ SKP_int32 *pnBytesOut, /* O Pointer to number of payload bytes; */
+ ec_enc *psRangeEnc /* I/O compressor data structure */
+);
+
+/* Low Bitrate Redundancy (LBRR) encoding. Reuse all parameters but encode with lower bitrate */
+void SKP_Silk_LBRR_encode_FIX(
+ SKP_Silk_encoder_state_FIX *psEnc, /* I/O Pointer to Silk FIX encoder state */
+ SKP_Silk_encoder_control_FIX *psEncCtrl, /* I/O Pointer to Silk FIX encoder control struct */
+ const SKP_int16 xfw[] /* I Input signal */
+);
+
+/* Initializes the Silk encoder state */
+SKP_int SKP_Silk_init_encoder(
+ SKP_Silk_encoder_state_FIX *psEnc /* I/O Pointer to Silk FIX encoder state */
+);
+
+/* Control the Silk encoder */
+SKP_int SKP_Silk_control_encoder(
+ SKP_Silk_encoder_state_FIX *psEnc, /* I/O Pointer to Silk encoder state */
+ SKP_SILK_SDK_EncControlStruct *encControl, /* I: Control structure */
+ const SKP_int32 TargetRate_bps, /* I Target max bitrate (bps) */
+ const SKP_int allow_bw_switch /* I Flag to allow switching audio bandwidth */
+);
+
+/****************/
+/* Prefiltering */
+/****************/
+void SKP_Silk_prefilter_FIX(
+ SKP_Silk_encoder_state_FIX *psEnc, /* I/O Encoder state */
+ const SKP_Silk_encoder_control_FIX *psEncCtrl, /* I Encoder control */
+ SKP_int16 xw[], /* O Weighted signal */
+ const SKP_int16 x[] /* I Speech signal */
+);
+
+/**************************/
+/* Noise shaping analysis */
+/**************************/
+/* Compute noise shaping coefficients and initial gain values */
+void SKP_Silk_noise_shape_analysis_FIX(
+ SKP_Silk_encoder_state_FIX *psEnc, /* I/O Encoder state FIX */
+ SKP_Silk_encoder_control_FIX *psEncCtrl, /* I/O Encoder control FIX */
+ const SKP_int16 *pitch_res, /* I LPC residual from pitch analysis */
+ const SKP_int16 *x /* I Input signal [ frame_length + la_shape ] */
+);
+
+/* Autocorrelations for a warped frequency axis */
+void SKP_Silk_warped_autocorrelation_FIX(
+ SKP_int32 *corr, /* O Result [order + 1] */
+ SKP_int *scale, /* O Scaling of the correlation vector */
+ const SKP_int16 *input, /* I Input data to correlate */
+ const SKP_int warping_Q16, /* I Warping coefficient */
+ const SKP_int length, /* I Length of input */
+ const SKP_int order /* I Correlation order (even) */
+);
+
+/* Calculation of LTP state scaling */
+void SKP_Silk_LTP_scale_ctrl_FIX(
+ SKP_Silk_encoder_state_FIX *psEnc, /* I/O encoder state */
+ SKP_Silk_encoder_control_FIX *psEncCtrl /* I/O encoder control */
+);
+
+/**********************************************/
+/* Prediction Analysis */
+/**********************************************/
+/* Find pitch lags */
+void SKP_Silk_find_pitch_lags_FIX(
+ SKP_Silk_encoder_state_FIX *psEnc, /* I/O encoder state */
+ SKP_Silk_encoder_control_FIX *psEncCtrl, /* I/O encoder control */
+ SKP_int16 res[], /* O residual */
+ const SKP_int16 x[] /* I Speech signal */
+);
+
+/* Find LPC and LTP coefficients */
+void SKP_Silk_find_pred_coefs_FIX(
+ SKP_Silk_encoder_state_FIX *psEnc, /* I/O encoder state */
+ SKP_Silk_encoder_control_FIX *psEncCtrl, /* I/O encoder control */
+ const SKP_int16 res_pitch[], /* I Residual from pitch analysis */
+ const SKP_int16 x[] /* I Speech signal */
+);
+
+/* LPC analysis */
+void SKP_Silk_find_LPC_FIX(
+ SKP_int16 NLSF_Q15[], /* O NLSFs */
+ SKP_int8 *interpIndex, /* O NLSF interpolation index, only used for NLSF interpolation */
+ const SKP_int16 prev_NLSFq_Q15[], /* I previous NLSFs, only used for NLSF interpolation */
+ const SKP_int useInterpNLSFs, /* I Flag */
+ const SKP_int firstFrameAfterReset, /* I Flag */
+ const SKP_int LPC_order, /* I LPC order */
+ const SKP_int16 x[], /* I Input signal */
+ const SKP_int subfr_length, /* I Input signal subframe length including preceeding samples */
+ const SKP_int nb_subfr /* I: Number of subframes */
+);
+
+/* LTP analysis */
+void SKP_Silk_find_LTP_FIX(
+ SKP_int16 b_Q14[ MAX_NB_SUBFR * LTP_ORDER ], /* O LTP coefs */
+ SKP_int32 WLTP[ MAX_NB_SUBFR * LTP_ORDER * LTP_ORDER ], /* O Weight for LTP quantization */
+ SKP_int *LTPredCodGain_Q7, /* O LTP coding gain */
+ const SKP_int16 r_lpc[], /* I residual signal after LPC signal + state for first 10 ms */
+ const SKP_int lag[ MAX_NB_SUBFR ], /* I LTP lags */
+ const SKP_int32 Wght_Q15[ MAX_NB_SUBFR ], /* I weights */
+ const SKP_int subfr_length, /* I subframe length */
+ const SKP_int nb_subfr, /* I number of subframes */
+ const SKP_int mem_offset, /* I number of samples in LTP memory */
+ SKP_int corr_rshifts[ MAX_NB_SUBFR ] /* O right shifts applied to correlations */
+);
+
+void SKP_Silk_LTP_analysis_filter_FIX(
+ SKP_int16 *LTP_res, /* O: LTP residual signal of length MAX_NB_SUBFR * ( pre_length + subfr_length ) */
+ const SKP_int16 *x, /* I: Pointer to input signal with at least max( pitchL ) preceeding samples */
+ const SKP_int16 LTPCoef_Q14[ LTP_ORDER * MAX_NB_SUBFR ],/* I: LTP_ORDER LTP coefficients for each MAX_NB_SUBFR subframe */
+ const SKP_int pitchL[ MAX_NB_SUBFR ], /* I: Pitch lag, one for each subframe */
+ const SKP_int32 invGains_Q16[ MAX_NB_SUBFR ], /* I: Inverse quantization gains, one for each subframe */
+ const SKP_int subfr_length, /* I: Length of each subframe */
+ const SKP_int nb_subfr, /* I: Number of subframes */
+ const SKP_int pre_length /* I: Length of the preceeding samples starting at &x[0] for each subframe */
+);
+
+/* Calculates residual energies of input subframes where all subframes have LPC_order */
+/* of preceeding samples */
+void SKP_Silk_residual_energy_FIX(
+ SKP_int32 nrgs[ MAX_NB_SUBFR ], /* O Residual energy per subframe */
+ SKP_int nrgsQ[ MAX_NB_SUBFR ], /* O Q value per subframe */
+ const SKP_int16 x[], /* I Input signal */
+ const SKP_int16 a_Q12[ 2 ][ MAX_LPC_ORDER ], /* I AR coefs for each frame half */
+ const SKP_int32 gains[ MAX_NB_SUBFR ], /* I Quantization gains */
+ const SKP_int subfr_length, /* I Subframe length */
+ const SKP_int nb_subfr, /* I Number of subframes */
+ const SKP_int LPC_order /* I LPC order */
+);
+
+/* Residual energy: nrg = wxx - 2 * wXx * c + c' * wXX * c */
+SKP_int32 SKP_Silk_residual_energy16_covar_FIX(
+ const SKP_int16 *c, /* I Prediction vector */
+ const SKP_int32 *wXX, /* I Correlation matrix */
+ const SKP_int32 *wXx, /* I Correlation vector */
+ SKP_int32 wxx, /* I Signal energy */
+ SKP_int D, /* I Dimension */
+ SKP_int cQ /* I Q value for c vector 0 - 15 */
+);
+
+/* Processing of gains */
+void SKP_Silk_process_gains_FIX(
+ SKP_Silk_encoder_state_FIX *psEnc, /* I/O Encoder state */
+ SKP_Silk_encoder_control_FIX *psEncCtrl /* I/O Encoder control */
+);
+
+/******************/
+/* Linear Algebra */
+/******************/
+/* Calculates correlation matrix X'*X */
+void SKP_Silk_corrMatrix_FIX(
+ const SKP_int16 *x, /* I x vector [L + order - 1] used to form data matrix X */
+ const SKP_int L, /* I Length of vectors */
+ const SKP_int order, /* I Max lag for correlation */
+ const SKP_int head_room, /* I Desired headroom */
+ SKP_int32 *XX, /* O Pointer to X'*X correlation matrix [ order x order ]*/
+ SKP_int *rshifts /* I/O Right shifts of correlations */
+);
+
+/* Calculates correlation vector X'*t */
+void SKP_Silk_corrVector_FIX(
+ const SKP_int16 *x, /* I x vector [L + order - 1] used to form data matrix X */
+ const SKP_int16 *t, /* I Target vector [L] */
+ const SKP_int L, /* I Length of vectors */
+ const SKP_int order, /* I Max lag for correlation */
+ SKP_int32 *Xt, /* O Pointer to X'*t correlation vector [order] */
+ const SKP_int rshifts /* I Right shifts of correlations */
+);
+
+/* Add noise to matrix diagonal */
+void SKP_Silk_regularize_correlations_FIX(
+ SKP_int32 *XX, /* I/O Correlation matrices */
+ SKP_int32 *xx, /* I/O Correlation values */
+ SKP_int32 noise, /* I Noise to add */
+ SKP_int D /* I Dimension of XX */
+);
+
+/* Solves Ax = b, assuming A is symmetric */
+void SKP_Silk_solve_LDL_FIX(
+ SKP_int32 *A, /* I Pointer to symetric square matrix A */
+ SKP_int M, /* I Size of matrix */
+ const SKP_int32 *b, /* I Pointer to b vector */
+ SKP_int32 *x_Q16 /* O Pointer to x solution vector */
+);
+
+#ifndef FORCE_CPP_BUILD
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+#endif /* FORCE_CPP_BUILD */
+#endif /* SKP_SILK_MAIN_FIX_H */
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