chasing indexing error

1 files changed, 0 insertions, 165 deletions

diff --git a/ffmpeg/libavcodec/atrac.c b/ffmpeg/libavcodec/atrac.c
deleted file mode 100644
index 12e8997..0000000
--- a/ffmpeg/libavcodec/atrac.c
+++ /dev/null
@@ -1,165 +0,0 @@
-/*
- * common functions for the ATRAC family of decoders
- *
- * Copyright (c) 2006-2013 Maxim Poliakovski
- * Copyright (c) 2006-2008 Benjamin Larsson
- *
- * 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
- */
-
-/**
- * @file
- */
-
-#include <math.h>
-#include <stddef.h>
-#include <stdio.h>
-#include <string.h>
-
-#include "avcodec.h"
-#include "atrac.h"
-
-float ff_atrac_sf_table[64];
-static float qmf_window[48];
-
-static const float qmf_48tap_half[24] = {
-   -0.00001461907, -0.00009205479,-0.000056157569,0.00030117269,
-    0.0002422519,  -0.00085293897,-0.0005205574,  0.0020340169,
-    0.00078333891, -0.0042153862, -0.00075614988, 0.0078402944,
-   -0.000061169922,-0.01344162,    0.0024626821,  0.021736089,
-   -0.007801671,   -0.034090221,   0.01880949,    0.054326009,
-   -0.043596379,   -0.099384367,   0.13207909,    0.46424159
-};
-
-av_cold void ff_atrac_generate_tables(void)
-{
-    int i;
-    float s;
-
-    /* Generate scale factors */
-    if (!ff_atrac_sf_table[63])
-        for (i=0 ; i<64 ; i++)
-            ff_atrac_sf_table[i] = pow(2.0, (i - 15) / 3.0);
-
-    /* Generate the QMF window. */
-    if (!qmf_window[47])
-        for (i=0 ; i<24; i++) {
-            s = qmf_48tap_half[i] * 2.0;
-            qmf_window[i] = qmf_window[47 - i] = s;
-        }
-}
-
-av_cold void ff_atrac_init_gain_compensation(AtracGCContext *gctx, int id2exp_offset,
-                                             int loc_scale)
-{
-    int i;
-
-    gctx->loc_scale     = loc_scale;
-    gctx->loc_size      = 1 << loc_scale;
-    gctx->id2exp_offset = id2exp_offset;
-
-    /* Generate gain level table. */
-    for (i = 0; i < 16; i++)
-        gctx->gain_tab1[i] = powf(2.0, id2exp_offset - i);
-
-    /* Generate gain interpolation table. */
-    for (i = -15; i < 16; i++)
-        gctx->gain_tab2[i + 15] = powf(2.0, -1.0f / gctx->loc_size * i);
-}
-
-void ff_atrac_gain_compensation(AtracGCContext *gctx, float *in, float *prev,
-                                AtracGainInfo *gc_now, AtracGainInfo *gc_next,
-                                int num_samples, float *out)
-{
-    float lev, gc_scale, gain_inc;
-    int i, pos, lastpos;
-
-    gc_scale = gc_next->num_points ? gctx->gain_tab1[gc_next->lev_code[0]]
-                                   : 1.0f;
-
-    if (!gc_now->num_points) {
-        for (pos = 0; pos < num_samples; pos++)
-            out[pos] = in[pos] * gc_scale + prev[pos];
-    } else {
-        pos = 0;
-
-        for (i = 0; i < gc_now->num_points; i++) {
-            lastpos = gc_now->loc_code[i] << gctx->loc_scale;
-
-            lev = gctx->gain_tab1[gc_now->lev_code[i]];
-            gain_inc = gctx->gain_tab2[(i + 1 < gc_now->num_points ? gc_now->lev_code[i + 1]
-                                                                   : gctx->id2exp_offset) -
-                                       gc_now->lev_code[i] + 15];
-
-            /* apply constant gain level and overlap */
-            for (; pos < lastpos; pos++)
-                out[pos] = (in[pos] * gc_scale + prev[pos]) * lev;
-
-            /* interpolate between two different gain levels */
-            for (; pos < lastpos + gctx->loc_size; pos++) {
-                out[pos] = (in[pos] * gc_scale + prev[pos]) * lev;
-                lev *= gain_inc;
-            }
-        }
-
-        for (; pos < num_samples; pos++)
-            out[pos] = in[pos] * gc_scale + prev[pos];
-    }
-
-    /* copy the overlapping part into the delay buffer */
-    memcpy(prev, &in[num_samples], num_samples * sizeof(float));
-}
-
-void ff_atrac_iqmf(float *inlo, float *inhi, unsigned int nIn, float *pOut,
-                   float *delayBuf, float *temp)
-{
-    int   i, j;
-    float   *p1, *p3;
-
-    memcpy(temp, delayBuf, 46*sizeof(float));
-
-    p3 = temp + 46;
-
-    /* loop1 */
-    for(i=0; i<nIn; i+=2){
-        p3[2*i+0] = inlo[i  ] + inhi[i  ];
-        p3[2*i+1] = inlo[i  ] - inhi[i  ];
-        p3[2*i+2] = inlo[i+1] + inhi[i+1];
-        p3[2*i+3] = inlo[i+1] - inhi[i+1];
-    }
-
-    /* loop2 */
-    p1 = temp;
-    for (j = nIn; j != 0; j--) {
-        float s1 = 0.0;
-        float s2 = 0.0;
-
-        for (i = 0; i < 48; i += 2) {
-            s1 += p1[i] * qmf_window[i];
-            s2 += p1[i+1] * qmf_window[i+1];
-        }
-
-        pOut[0] = s2;
-        pOut[1] = s1;
-
-        p1 += 2;
-        pOut += 2;
-    }
-
-    /* Update the delay buffer. */
-    memcpy(delayBuf, temp + nIn*2, 46*sizeof(float));
-}