1 files changed, 0 insertions, 116 deletions
diff --git a/ffmpeg/libavcodec/g729postfilter.h b/ffmpeg/libavcodec/g729postfilter.h
deleted file mode 100644
index 5239fc8..0000000
--- a/ffmpeg/libavcodec/g729postfilter.h
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- * G.729, G729 Annex D postfilter
- * Copyright (c) 2008 Vladimir Voroshilov
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-#ifndef FFMPEG_G729POSTFILTER_H
-#define FFMPEG_G729POSTFILTER_H
-
-#include <stdint.h>
-#include "dsputil.h"
-
-/**
- * tilt compensation factor (G.729, k1>0)
- * 0.2 in Q15
- */
-#define G729_TILT_FACTOR_PLUS       6554
-
-/**
- * tilt compensation factor (G.729, k1<0)
- * 0.9 in Q15
- */
-#define G729_TILT_FACTOR_MINUS     29491
-
-/* 4.2.2 */
-#define FORMANT_PP_FACTOR_NUM  18022             //0.55 in Q15
-#define FORMANT_PP_FACTOR_DEN  22938             //0.70 in Q15
-
-/**
- * gain adjustment factor (G.729, 4.2.4)
- * 0.9875 in Q15
- */
-#define G729_AGC_FACTOR            32358
-#define G729_AGC_FAC1 (32768-G729_AGC_FACTOR)
-
-/**
- * 1.0 / (1.0 + 0.5) in Q15
- * where 0.5 is the minimum value of
- * weight factor, controlling amount of long-term postfiltering
- */
-#define MIN_LT_FILT_FACTOR_A       21845
-
-/**
- * Short interpolation filter length
- */
-#define SHORT_INT_FILT_LEN         2
-
-/**
- * Long interpolation filter length
- */
-#define LONG_INT_FILT_LEN          8
-
-/**
- * Number of analyzed fractional pitch delays in second stage of long-term
- * postfilter
- */
-#define ANALYZED_FRAC_DELAYS       7
-
-/**
- * Amount of past residual signal data stored in buffer
- */
-#define RES_PREV_DATA_SIZE (PITCH_DELAY_MAX + LONG_INT_FILT_LEN + 1)
-
-/**
- * \brief Signal postfiltering (4.2)
- * \param dsp initialized DSP context
- * \param ht_prev_data [in/out] (Q12) pointer to variable receiving tilt
- *                     compensation filter data from previous subframe
- * \param voicing [in/out] (Q0) pointer to variable receiving voicing decision
- * \param lp_filter_coeffs (Q12) LP filter coefficients
- * \param pitch_delay_int integer part of the pitch delay
- * \param residual [in/out] (Q0) residual signal buffer (used in long-term postfilter)
- * \param res_filter_data [in/out] (Q0) speech data of previous subframe
- * \param pos_filter_data [in/out] (Q0) previous speech data for short-term postfilter
- * \param speech [in/out] (Q0) signal buffer
- * \param subframe_size size of subframe
- *
- * Filtering has the following  stages:
- *   Long-term postfilter (4.2.1)
- *   Short-term postfilter (4.2.2).
- *   Tilt-compensation (4.2.3)
- */
-void ff_g729_postfilter(DSPContext *dsp, int16_t* ht_prev_data, int* voicing,
-                     const int16_t *lp_filter_coeffs, int pitch_delay_int,
-                     int16_t* residual, int16_t* res_filter_data,
-                     int16_t* pos_filter_data, int16_t *speech,
-                     int subframe_size);
-
-/**
- * \brief Adaptive gain control (4.2.4)
- * \param gain_before (Q0) gain of speech before applying postfilters
- * \param gain_after  (Q0) gain of speech after applying postfilters
- * \param speech [in/out] (Q0) signal buffer
- * \param subframe_size length of subframe
- * \param gain_prev (Q12) previous value of gain coefficient
- *
- * \return (Q12) last value of gain coefficient
- */
-int16_t ff_g729_adaptive_gain_control(int gain_before, int gain_after, int16_t *speech,
-                                   int subframe_size, int16_t gain_prev);
-
-#endif // FFMPEG_G729POSTFILTER_H