chasing indexing error

1 files changed, 0 insertions, 277 deletions

diff --git a/ffmpeg/libavcodec/ac3dsp.c b/ffmpeg/libavcodec/ac3dsp.c
deleted file mode 100644
index feda6dd..0000000
--- a/ffmpeg/libavcodec/ac3dsp.c
+++ /dev/null
@@ -1,277 +0,0 @@
-/*
- * AC-3 DSP utils
- * Copyright (c) 2011 Justin Ruggles
- *
- * 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 "libavutil/avassert.h"
-#include "avcodec.h"
-#include "ac3.h"
-#include "ac3dsp.h"
-#include "mathops.h"
-
-static void ac3_exponent_min_c(uint8_t *exp, int num_reuse_blocks, int nb_coefs)
-{
-    int blk, i;
-
-    if (!num_reuse_blocks)
-        return;
-
-    for (i = 0; i < nb_coefs; i++) {
-        uint8_t min_exp = *exp;
-        uint8_t *exp1 = exp + 256;
-        for (blk = 0; blk < num_reuse_blocks; blk++) {
-            uint8_t next_exp = *exp1;
-            if (next_exp < min_exp)
-                min_exp = next_exp;
-            exp1 += 256;
-        }
-        *exp++ = min_exp;
-    }
-}
-
-static int ac3_max_msb_abs_int16_c(const int16_t *src, int len)
-{
-    int i, v = 0;
-    for (i = 0; i < len; i++)
-        v |= abs(src[i]);
-    return v;
-}
-
-static void ac3_lshift_int16_c(int16_t *src, unsigned int len,
-                               unsigned int shift)
-{
-    uint32_t *src32 = (uint32_t *)src;
-    const uint32_t mask = ~(((1 << shift) - 1) << 16);
-    int i;
-    len >>= 1;
-    for (i = 0; i < len; i += 8) {
-        src32[i  ] = (src32[i  ] << shift) & mask;
-        src32[i+1] = (src32[i+1] << shift) & mask;
-        src32[i+2] = (src32[i+2] << shift) & mask;
-        src32[i+3] = (src32[i+3] << shift) & mask;
-        src32[i+4] = (src32[i+4] << shift) & mask;
-        src32[i+5] = (src32[i+5] << shift) & mask;
-        src32[i+6] = (src32[i+6] << shift) & mask;
-        src32[i+7] = (src32[i+7] << shift) & mask;
-    }
-}
-
-static void ac3_rshift_int32_c(int32_t *src, unsigned int len,
-                               unsigned int shift)
-{
-    do {
-        *src++ >>= shift;
-        *src++ >>= shift;
-        *src++ >>= shift;
-        *src++ >>= shift;
-        *src++ >>= shift;
-        *src++ >>= shift;
-        *src++ >>= shift;
-        *src++ >>= shift;
-        len -= 8;
-    } while (len > 0);
-}
-
-static void float_to_fixed24_c(int32_t *dst, const float *src, unsigned int len)
-{
-    const float scale = 1 << 24;
-    do {
-        *dst++ = lrintf(*src++ * scale);
-        *dst++ = lrintf(*src++ * scale);
-        *dst++ = lrintf(*src++ * scale);
-        *dst++ = lrintf(*src++ * scale);
-        *dst++ = lrintf(*src++ * scale);
-        *dst++ = lrintf(*src++ * scale);
-        *dst++ = lrintf(*src++ * scale);
-        *dst++ = lrintf(*src++ * scale);
-        len -= 8;
-    } while (len > 0);
-}
-
-static void ac3_bit_alloc_calc_bap_c(int16_t *mask, int16_t *psd,
-                                     int start, int end,
-                                     int snr_offset, int floor,
-                                     const uint8_t *bap_tab, uint8_t *bap)
-{
-    int bin, band, band_end;
-
-    /* special case, if snr offset is -960, set all bap's to zero */
-    if (snr_offset == -960) {
-        memset(bap, 0, AC3_MAX_COEFS);
-        return;
-    }
-
-    bin  = start;
-    band = ff_ac3_bin_to_band_tab[start];
-    do {
-        int m = (FFMAX(mask[band] - snr_offset - floor, 0) & 0x1FE0) + floor;
-        band_end = ff_ac3_band_start_tab[++band];
-        band_end = FFMIN(band_end, end);
-
-        for (; bin < band_end; bin++) {
-            int address = av_clip((psd[bin] - m) >> 5, 0, 63);
-            bap[bin] = bap_tab[address];
-        }
-    } while (end > band_end);
-}
-
-static void ac3_update_bap_counts_c(uint16_t mant_cnt[16], uint8_t *bap,
-                                    int len)
-{
-    while (len-- > 0)
-        mant_cnt[bap[len]]++;
-}
-
-DECLARE_ALIGNED(16, const uint16_t, ff_ac3_bap_bits)[16] = {
-    0,  0,  0,  3,  0,  4,  5,  6,  7,  8,  9, 10, 11, 12, 14, 16
-};
-
-static int ac3_compute_mantissa_size_c(uint16_t mant_cnt[6][16])
-{
-    int blk, bap;
-    int bits = 0;
-
-    for (blk = 0; blk < AC3_MAX_BLOCKS; blk++) {
-        // bap=1 : 3 mantissas in 5 bits
-        bits += (mant_cnt[blk][1] / 3) * 5;
-        // bap=2 : 3 mantissas in 7 bits
-        // bap=4 : 2 mantissas in 7 bits
-        bits += ((mant_cnt[blk][2] / 3) + (mant_cnt[blk][4] >> 1)) * 7;
-        // bap=3 : 1 mantissa in 3 bits
-        bits += mant_cnt[blk][3] * 3;
-        // bap=5 to 15 : get bits per mantissa from table
-        for (bap = 5; bap < 16; bap++)
-            bits += mant_cnt[blk][bap] * ff_ac3_bap_bits[bap];
-    }
-    return bits;
-}
-
-static void ac3_extract_exponents_c(uint8_t *exp, int32_t *coef, int nb_coefs)
-{
-    int i;
-
-    for (i = 0; i < nb_coefs; i++) {
-        int v = abs(coef[i]);
-        exp[i] = v ? 23 - av_log2(v) : 24;
-    }
-}
-
-static void ac3_sum_square_butterfly_int32_c(int64_t sum[4],
-                                             const int32_t *coef0,
-                                             const int32_t *coef1,
-                                             int len)
-{
-    int i;
-
-    sum[0] = sum[1] = sum[2] = sum[3] = 0;
-
-    for (i = 0; i < len; i++) {
-        int lt = coef0[i];
-        int rt = coef1[i];
-        int md = lt + rt;
-        int sd = lt - rt;
-        MAC64(sum[0], lt, lt);
-        MAC64(sum[1], rt, rt);
-        MAC64(sum[2], md, md);
-        MAC64(sum[3], sd, sd);
-    }
-}
-
-static void ac3_sum_square_butterfly_float_c(float sum[4],
-                                             const float *coef0,
-                                             const float *coef1,
-                                             int len)
-{
-    int i;
-
-    sum[0] = sum[1] = sum[2] = sum[3] = 0;
-
-    for (i = 0; i < len; i++) {
-        float lt = coef0[i];
-        float rt = coef1[i];
-        float md = lt + rt;
-        float sd = lt - rt;
-        sum[0] += lt * lt;
-        sum[1] += rt * rt;
-        sum[2] += md * md;
-        sum[3] += sd * sd;
-    }
-}
-
-static void ac3_downmix_c(float **samples, float (*matrix)[2],
-                          int out_ch, int in_ch, int len)
-{
-    int i, j;
-    float v0, v1;
-    if (out_ch == 2) {
-        for (i = 0; i < len; i++) {
-            v0 = v1 = 0.0f;
-            for (j = 0; j < in_ch; j++) {
-                v0 += samples[j][i] * matrix[j][0];
-                v1 += samples[j][i] * matrix[j][1];
-            }
-            samples[0][i] = v0;
-            samples[1][i] = v1;
-        }
-    } else if (out_ch == 1) {
-        for (i = 0; i < len; i++) {
-            v0 = 0.0f;
-            for (j = 0; j < in_ch; j++)
-                v0 += samples[j][i] * matrix[j][0];
-            samples[0][i] = v0;
-        }
-    }
-}
-
-static void apply_window_int16_c(int16_t *output, const int16_t *input,
-                                 const int16_t *window, unsigned int len)
-{
-    int i;
-    int len2 = len >> 1;
-
-    for (i = 0; i < len2; i++) {
-        int16_t w       = window[i];
-        output[i]       = (MUL16(input[i],       w) + (1 << 14)) >> 15;
-        output[len-i-1] = (MUL16(input[len-i-1], w) + (1 << 14)) >> 15;
-    }
-}
-
-av_cold void ff_ac3dsp_init(AC3DSPContext *c, int bit_exact)
-{
-    c->ac3_exponent_min = ac3_exponent_min_c;
-    c->ac3_max_msb_abs_int16 = ac3_max_msb_abs_int16_c;
-    c->ac3_lshift_int16 = ac3_lshift_int16_c;
-    c->ac3_rshift_int32 = ac3_rshift_int32_c;
-    c->float_to_fixed24 = float_to_fixed24_c;
-    c->bit_alloc_calc_bap = ac3_bit_alloc_calc_bap_c;
-    c->update_bap_counts = ac3_update_bap_counts_c;
-    c->compute_mantissa_size = ac3_compute_mantissa_size_c;
-    c->extract_exponents = ac3_extract_exponents_c;
-    c->sum_square_butterfly_int32 = ac3_sum_square_butterfly_int32_c;
-    c->sum_square_butterfly_float = ac3_sum_square_butterfly_float_c;
-    c->downmix = ac3_downmix_c;
-    c->apply_window_int16 = apply_window_int16_c;
-
-    if (ARCH_ARM)
-        ff_ac3dsp_init_arm(c, bit_exact);
-    if (ARCH_X86)
-        ff_ac3dsp_init_x86(c, bit_exact);
-    if (ARCH_MIPS)
-        ff_ac3dsp_init_mips(c, bit_exact);
-}