chasing indexing error

1 files changed, 0 insertions, 282 deletions

diff --git a/ffmpeg/libavcodec/sipr16k.c b/ffmpeg/libavcodec/sipr16k.c
deleted file mode 100644
index bfd8ade..0000000
--- a/ffmpeg/libavcodec/sipr16k.c
+++ /dev/null
@@ -1,282 +0,0 @@
-/*
- * SIPR decoder for the 16k mode
- *
- * Copyright (c) 2008 Vladimir Voroshilov
- * Copyright (c) 2009 Vitor Sessak
- *
- * 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
- */
-
-#include <math.h>
-
-#include "sipr.h"
-#include "libavutil/attributes.h"
-#include "libavutil/common.h"
-#include "libavutil/float_dsp.h"
-#include "libavutil/mathematics.h"
-#include "lsp.h"
-#include "acelp_vectors.h"
-#include "acelp_pitch_delay.h"
-#include "acelp_filters.h"
-#include "celp_filters.h"
-
-#include "sipr16kdata.h"
-
-/**
- * Convert an lsf vector into an lsp vector.
- *
- * @param lsf               input lsf vector
- * @param lsp               output lsp vector
- */
-static void lsf2lsp(const float *lsf, double *lsp)
-{
-    int i;
-
-    for (i = 0; i < LP_FILTER_ORDER_16k; i++)
-        lsp[i] = cosf(lsf[i]);
-}
-
-static void dequant(float *out, const int *idx, const float *cbs[])
-{
-    int i;
-
-    for (i = 0; i < 4; i++)
-        memcpy(out + 3*i, cbs[i] + 3*idx[i], 3*sizeof(float));
-
-    memcpy(out + 12, cbs[4] + 4*idx[4], 4*sizeof(float));
-}
-
-static void lsf_decode_fp_16k(float* lsf_history, float* isp_new,
-                              const int* parm, int ma_pred)
-{
-    int i;
-    float isp_q[LP_FILTER_ORDER_16k];
-
-    dequant(isp_q, parm, lsf_codebooks_16k);
-
-    for (i = 0; i < LP_FILTER_ORDER_16k; i++) {
-        isp_new[i] = (1 - qu[ma_pred]) * isp_q[i]
-                    +     qu[ma_pred]  * lsf_history[i]
-                    + mean_lsf_16k[i];
-    }
-
-    memcpy(lsf_history, isp_q, LP_FILTER_ORDER_16k * sizeof(float));
-}
-
-static int dec_delay3_1st(int index)
-{
-    if (index < 390) {
-        return index + 88;
-    } else
-        return 3 * index - 690;
-}
-
-static int dec_delay3_2nd(int index, int pit_min, int pit_max,
-                          int pitch_lag_prev)
-{
-    if (index < 62) {
-        int pitch_delay_min = av_clip(pitch_lag_prev - 10,
-                                      pit_min, pit_max - 19);
-        return 3 * pitch_delay_min + index - 2;
-    } else
-        return 3 * pitch_lag_prev;
-}
-
-static void postfilter(float *out_data, float* synth, float* iir_mem,
-                       float* filt_mem[2], float* mem_preemph)
-{
-    float buf[30 + LP_FILTER_ORDER_16k];
-    float *tmpbuf = buf + LP_FILTER_ORDER_16k;
-    float s;
-    int i;
-
-    for (i = 0; i < LP_FILTER_ORDER_16k; i++)
-        filt_mem[0][i] = iir_mem[i] * ff_pow_0_5[i];
-
-    memcpy(tmpbuf - LP_FILTER_ORDER_16k, mem_preemph,
-           LP_FILTER_ORDER_16k*sizeof(*buf));
-
-    ff_celp_lp_synthesis_filterf(tmpbuf, filt_mem[1], synth, 30,
-                                 LP_FILTER_ORDER_16k);
-
-    memcpy(synth - LP_FILTER_ORDER_16k, mem_preemph,
-           LP_FILTER_ORDER_16k * sizeof(*synth));
-
-    ff_celp_lp_synthesis_filterf(synth, filt_mem[0], synth, 30,
-                                 LP_FILTER_ORDER_16k);
-
-    memcpy(out_data + 30 - LP_FILTER_ORDER_16k,
-           synth    + 30 - LP_FILTER_ORDER_16k,
-           LP_FILTER_ORDER_16k * sizeof(*synth));
-
-    ff_celp_lp_synthesis_filterf(out_data + 30, filt_mem[0],
-                                 synth + 30, 2 * L_SUBFR_16k - 30,
-                                 LP_FILTER_ORDER_16k);
-
-
-    memcpy(mem_preemph, out_data + 2*L_SUBFR_16k - LP_FILTER_ORDER_16k,
-           LP_FILTER_ORDER_16k * sizeof(*synth));
-
-    FFSWAP(float *, filt_mem[0], filt_mem[1]);
-    for (i = 0, s = 0; i < 30; i++, s += 1.0/30)
-        out_data[i] = tmpbuf[i] + s * (synth[i] - tmpbuf[i]);
-}
-
-/**
- * Floating point version of ff_acelp_lp_decode().
- */
-static void acelp_lp_decodef(float *lp_1st, float *lp_2nd,
-                             const double *lsp_2nd, const double *lsp_prev)
-{
-    double lsp_1st[LP_FILTER_ORDER_16k];
-    int i;
-
-    /* LSP values for first subframe (3.2.5 of G.729, Equation 24) */
-    for (i = 0; i < LP_FILTER_ORDER_16k; i++)
-        lsp_1st[i] = (lsp_2nd[i] + lsp_prev[i]) * 0.5;
-
-    ff_acelp_lspd2lpc(lsp_1st, lp_1st, LP_FILTER_ORDER_16k >> 1);
-
-    /* LSP values for second subframe (3.2.5 of G.729) */
-    ff_acelp_lspd2lpc(lsp_2nd, lp_2nd, LP_FILTER_ORDER_16k >> 1);
-}
-
-/**
- * Floating point version of ff_acelp_decode_gain_code().
- */
-static float acelp_decode_gain_codef(float gain_corr_factor, const float *fc_v,
-                                     float mr_energy, const float *quant_energy,
-                                     const float *ma_prediction_coeff,
-                                     int subframe_size, int ma_pred_order)
-{
-    mr_energy += avpriv_scalarproduct_float_c(quant_energy, ma_prediction_coeff,
-                                              ma_pred_order);
-
-    mr_energy = gain_corr_factor * exp(M_LN10 / 20. * mr_energy) /
-        sqrt((0.01 + avpriv_scalarproduct_float_c(fc_v, fc_v, subframe_size)));
-    return mr_energy;
-}
-
-#define DIVIDE_BY_3(x) ((x) * 10923 >> 15)
-
-void ff_sipr_decode_frame_16k(SiprContext *ctx, SiprParameters *params,
-                              float *out_data)
-{
-    int frame_size = SUBFRAME_COUNT_16k * L_SUBFR_16k;
-    float *synth = ctx->synth_buf + LP_FILTER_ORDER_16k;
-    float lsf_new[LP_FILTER_ORDER_16k];
-    double lsp_new[LP_FILTER_ORDER_16k];
-    float Az[2][LP_FILTER_ORDER_16k];
-    float fixed_vector[L_SUBFR_16k];
-    float pitch_fac, gain_code;
-
-    int i;
-    int pitch_delay_3x;
-
-    float *excitation = ctx->excitation + 292;
-
-    lsf_decode_fp_16k(ctx->lsf_history, lsf_new, params->vq_indexes,
-                      params->ma_pred_switch);
-
-    ff_set_min_dist_lsf(lsf_new, LSFQ_DIFF_MIN / 2, LP_FILTER_ORDER_16k);
-
-    lsf2lsp(lsf_new, lsp_new);
-
-    acelp_lp_decodef(Az[0], Az[1], lsp_new, ctx->lsp_history_16k);
-
-    memcpy(ctx->lsp_history_16k, lsp_new, LP_FILTER_ORDER_16k * sizeof(double));
-
-    memcpy(synth - LP_FILTER_ORDER_16k, ctx->synth,
-           LP_FILTER_ORDER_16k * sizeof(*synth));
-
-    for (i = 0; i < SUBFRAME_COUNT_16k; i++) {
-        int i_subfr = i * L_SUBFR_16k;
-        AMRFixed f;
-        float gain_corr_factor;
-        int pitch_delay_int;
-        int pitch_delay_frac;
-
-        if (!i) {
-            pitch_delay_3x = dec_delay3_1st(params->pitch_delay[i]);
-        } else
-            pitch_delay_3x = dec_delay3_2nd(params->pitch_delay[i],
-                                            PITCH_MIN, PITCH_MAX,
-                                            ctx->pitch_lag_prev);
-
-        pitch_fac = gain_pitch_cb_16k[params->gp_index[i]];
-        f.pitch_fac = FFMIN(pitch_fac, 1.0);
-        f.pitch_lag = DIVIDE_BY_3(pitch_delay_3x+1);
-        ctx->pitch_lag_prev = f.pitch_lag;
-
-        pitch_delay_int  = DIVIDE_BY_3(pitch_delay_3x + 2);
-        pitch_delay_frac = pitch_delay_3x + 2 - 3*pitch_delay_int;
-
-        ff_acelp_interpolatef(&excitation[i_subfr],
-                              &excitation[i_subfr] - pitch_delay_int + 1,
-                              sinc_win, 3, pitch_delay_frac + 1,
-                              LP_FILTER_ORDER, L_SUBFR_16k);
-
-
-        memset(fixed_vector, 0, sizeof(fixed_vector));
-
-        ff_decode_10_pulses_35bits(params->fc_indexes[i], &f,
-                                   ff_fc_4pulses_8bits_tracks_13, 5, 4);
-
-        ff_set_fixed_vector(fixed_vector, &f, 1.0, L_SUBFR_16k);
-
-        gain_corr_factor = gain_cb_16k[params->gc_index[i]];
-        gain_code = gain_corr_factor *
-            acelp_decode_gain_codef(sqrt(L_SUBFR_16k), fixed_vector,
-                                    19.0 - 15.0/(0.05*M_LN10/M_LN2),
-                                    pred_16k, ctx->energy_history,
-                                    L_SUBFR_16k, 2);
-
-        ctx->energy_history[1] = ctx->energy_history[0];
-        ctx->energy_history[0] = 20.0 * log10f(gain_corr_factor);
-
-        ff_weighted_vector_sumf(&excitation[i_subfr], &excitation[i_subfr],
-                                fixed_vector, pitch_fac,
-                                gain_code, L_SUBFR_16k);
-
-        ff_celp_lp_synthesis_filterf(synth + i_subfr, Az[i],
-                                     &excitation[i_subfr], L_SUBFR_16k,
-                                     LP_FILTER_ORDER_16k);
-
-    }
-    memcpy(ctx->synth, synth + frame_size - LP_FILTER_ORDER_16k,
-           LP_FILTER_ORDER_16k * sizeof(*synth));
-
-    memmove(ctx->excitation, ctx->excitation + 2 * L_SUBFR_16k,
-            (L_INTERPOL+PITCH_MAX) * sizeof(float));
-
-    postfilter(out_data, synth, ctx->iir_mem, ctx->filt_mem, ctx->mem_preemph);
-
-    memcpy(ctx->iir_mem, Az[1], LP_FILTER_ORDER_16k * sizeof(float));
-}
-
-av_cold void ff_sipr_init_16k(SiprContext *ctx)
-{
-    int i;
-
-    for (i = 0; i < LP_FILTER_ORDER_16k; i++)
-        ctx->lsp_history_16k[i] = cos((i + 1) * M_PI/(LP_FILTER_ORDER_16k + 1));
-
-    ctx->filt_mem[0] = ctx->filt_buf[0];
-    ctx->filt_mem[1] = ctx->filt_buf[1];
-
-    ctx->pitch_lag_prev = 180;
-}