Update avcodec to 20080825
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27541 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
David McPaul
@@ -0,0 +1,241 @@
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/*
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* Common code between the AC-3 encoder and decoder
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* Copyright (c) 2000 Fabrice Bellard.
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file ac3.c
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* Common code between the AC-3 encoder and decoder.
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*/
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#include "avcodec.h"
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#include "ac3.h"
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#include "bitstream.h"
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static uint8_t band_start_tab[51];
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static uint8_t bin_to_band_tab[253];
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static inline int calc_lowcomp1(int a, int b0, int b1, int c)
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{
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if ((b0 + 256) == b1) {
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a = c;
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} else if (b0 > b1) {
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a = FFMAX(a - 64, 0);
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}
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return a;
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}
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static inline int calc_lowcomp(int a, int b0, int b1, int bin)
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{
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if (bin < 7) {
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return calc_lowcomp1(a, b0, b1, 384);
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} else if (bin < 20) {
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return calc_lowcomp1(a, b0, b1, 320);
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} else {
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return FFMAX(a - 128, 0);
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}
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}
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void ff_ac3_bit_alloc_calc_psd(int8_t *exp, int start, int end, int16_t *psd,
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int16_t *band_psd)
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{
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int bin, i, j, k, end1, v;
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/* exponent mapping to PSD */
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for(bin=start;bin<end;bin++) {
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psd[bin]=(3072 - (exp[bin] << 7));
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}
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/* PSD integration */
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j=start;
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k=bin_to_band_tab[start];
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do {
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v=psd[j];
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j++;
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end1 = FFMIN(band_start_tab[k+1], end);
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for(i=j;i<end1;i++) {
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/* logadd */
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int adr = FFMIN(FFABS(v - psd[j]) >> 1, 255);
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v = FFMAX(v, psd[j]) + ff_ac3_log_add_tab[adr];
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j++;
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}
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band_psd[k]=v;
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k++;
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} while (end > band_start_tab[k]);
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}
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void ff_ac3_bit_alloc_calc_mask(AC3BitAllocParameters *s, int16_t *band_psd,
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int start, int end, int fast_gain, int is_lfe,
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int dba_mode, int dba_nsegs, uint8_t *dba_offsets,
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uint8_t *dba_lengths, uint8_t *dba_values,
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int16_t *mask)
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{
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int16_t excite[50]; /* excitation */
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int bin, k;
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int bndstrt, bndend, begin, end1, tmp;
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int lowcomp, fastleak, slowleak;
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/* excitation function */
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bndstrt = bin_to_band_tab[start];
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bndend = bin_to_band_tab[end-1] + 1;
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if (bndstrt == 0) {
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lowcomp = 0;
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lowcomp = calc_lowcomp1(lowcomp, band_psd[0], band_psd[1], 384);
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excite[0] = band_psd[0] - fast_gain - lowcomp;
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lowcomp = calc_lowcomp1(lowcomp, band_psd[1], band_psd[2], 384);
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excite[1] = band_psd[1] - fast_gain - lowcomp;
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begin = 7;
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for (bin = 2; bin < 7; bin++) {
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if (!(is_lfe && bin == 6))
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lowcomp = calc_lowcomp1(lowcomp, band_psd[bin], band_psd[bin+1], 384);
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fastleak = band_psd[bin] - fast_gain;
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slowleak = band_psd[bin] - s->slow_gain;
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excite[bin] = fastleak - lowcomp;
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if (!(is_lfe && bin == 6)) {
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if (band_psd[bin] <= band_psd[bin+1]) {
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begin = bin + 1;
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break;
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}
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}
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}
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end1=bndend;
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if (end1 > 22) end1=22;
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for (bin = begin; bin < end1; bin++) {
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if (!(is_lfe && bin == 6))
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lowcomp = calc_lowcomp(lowcomp, band_psd[bin], band_psd[bin+1], bin);
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fastleak = FFMAX(fastleak - s->fast_decay, band_psd[bin] - fast_gain);
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slowleak = FFMAX(slowleak - s->slow_decay, band_psd[bin] - s->slow_gain);
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excite[bin] = FFMAX(fastleak - lowcomp, slowleak);
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}
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begin = 22;
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} else {
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/* coupling channel */
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begin = bndstrt;
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fastleak = (s->cpl_fast_leak << 8) + 768;
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slowleak = (s->cpl_slow_leak << 8) + 768;
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}
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for (bin = begin; bin < bndend; bin++) {
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fastleak = FFMAX(fastleak - s->fast_decay, band_psd[bin] - fast_gain);
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slowleak = FFMAX(slowleak - s->slow_decay, band_psd[bin] - s->slow_gain);
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excite[bin] = FFMAX(fastleak, slowleak);
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}
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/* compute masking curve */
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for (bin = bndstrt; bin < bndend; bin++) {
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tmp = s->db_per_bit - band_psd[bin];
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if (tmp > 0) {
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excite[bin] += tmp >> 2;
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}
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mask[bin] = FFMAX(ff_ac3_hearing_threshold_tab[bin >> s->sr_shift][s->sr_code], excite[bin]);
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}
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/* delta bit allocation */
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if (dba_mode == DBA_REUSE || dba_mode == DBA_NEW) {
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int band, seg, delta;
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band = 0;
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for (seg = 0; seg < FFMIN(8, dba_nsegs); seg++) {
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band = FFMIN(49, band + dba_offsets[seg]);
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if (dba_values[seg] >= 4) {
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delta = (dba_values[seg] - 3) << 7;
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} else {
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delta = (dba_values[seg] - 4) << 7;
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}
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for (k = 0; k < dba_lengths[seg]; k++) {
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mask[band] += delta;
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band++;
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}
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}
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}
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}
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void ff_ac3_bit_alloc_calc_bap(int16_t *mask, int16_t *psd, int start, int end,
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int snr_offset, int floor,
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const uint8_t *bap_tab, uint8_t *bap)
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{
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int i, j, k, end1, v, address;
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/* special case, if snr offset is -960, set all bap's to zero */
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if(snr_offset == -960) {
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memset(bap, 0, 256);
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return;
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}
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i = start;
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j = bin_to_band_tab[start];
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do {
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v = (FFMAX(mask[j] - snr_offset - floor, 0) & 0x1FE0) + floor;
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end1 = FFMIN(band_start_tab[j] + ff_ac3_critical_band_size_tab[j], end);
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for (k = i; k < end1; k++) {
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address = av_clip((psd[i] - v) >> 5, 0, 63);
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bap[i] = bap_tab[address];
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i++;
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}
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} while (end > band_start_tab[j++]);
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}
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/* AC-3 bit allocation. The algorithm is the one described in the AC-3
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spec. */
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void ac3_parametric_bit_allocation(AC3BitAllocParameters *s, uint8_t *bap,
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int8_t *exp, int start, int end,
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int snr_offset, int fast_gain, int is_lfe,
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int dba_mode, int dba_nsegs,
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uint8_t *dba_offsets, uint8_t *dba_lengths,
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uint8_t *dba_values)
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{
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int16_t psd[256]; /* scaled exponents */
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int16_t band_psd[50]; /* interpolated exponents */
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int16_t mask[50]; /* masking value */
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ff_ac3_bit_alloc_calc_psd(exp, start, end, psd, band_psd);
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ff_ac3_bit_alloc_calc_mask(s, band_psd, start, end, fast_gain, is_lfe,
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dba_mode, dba_nsegs, dba_offsets, dba_lengths, dba_values,
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mask);
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ff_ac3_bit_alloc_calc_bap(mask, psd, start, end, snr_offset, s->floor,
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ff_ac3_bap_tab, bap);
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}
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/**
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* Initializes some tables.
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* note: This function must remain thread safe because it is called by the
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* AVParser init code.
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*/
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av_cold void ac3_common_init(void)
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{
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int i, j, k, l, v;
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/* compute bndtab and masktab from bandsz */
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k = 0;
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l = 0;
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for(i=0;i<50;i++) {
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band_start_tab[i] = l;
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v = ff_ac3_critical_band_size_tab[i];
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for(j=0;j<v;j++) bin_to_band_tab[k++]=i;
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l += v;
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}
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band_start_tab[50] = l;
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}
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@@ -0,0 +1,196 @@
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/*
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* AC-3 parser
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* Copyright (c) 2003 Fabrice Bellard.
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* Copyright (c) 2003 Michael Niedermayer.
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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|
* modify it under the terms of the GNU Lesser General Public
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|
* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
|
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
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|
* Lesser General Public License for more details.
|
||||||
|
*
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* You should have received a copy of the GNU Lesser General Public
|
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|
* License along with FFmpeg; if not, write to the Free Software
|
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|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "parser.h"
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#include "ac3_parser.h"
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#include "aac_ac3_parser.h"
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#include "bitstream.h"
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#define AC3_HEADER_SIZE 7
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static const uint8_t eac3_blocks[4] = {
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1, 2, 3, 6
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};
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int ff_ac3_parse_header(GetBitContext *gbc, AC3HeaderInfo *hdr)
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{
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int frame_size_code;
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memset(hdr, 0, sizeof(*hdr));
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hdr->sync_word = get_bits(gbc, 16);
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if(hdr->sync_word != 0x0B77)
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return AC3_PARSE_ERROR_SYNC;
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/* read ahead to bsid to distinguish between AC-3 and E-AC-3 */
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hdr->bitstream_id = show_bits_long(gbc, 29) & 0x1F;
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if(hdr->bitstream_id > 16)
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return AC3_PARSE_ERROR_BSID;
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hdr->num_blocks = 6;
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/* set default mix levels */
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hdr->center_mix_level = 1; // -4.5dB
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hdr->surround_mix_level = 1; // -6.0dB
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if(hdr->bitstream_id <= 10) {
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/* Normal AC-3 */
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hdr->crc1 = get_bits(gbc, 16);
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hdr->sr_code = get_bits(gbc, 2);
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if(hdr->sr_code == 3)
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return AC3_PARSE_ERROR_SAMPLE_RATE;
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frame_size_code = get_bits(gbc, 6);
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if(frame_size_code > 37)
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return AC3_PARSE_ERROR_FRAME_SIZE;
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skip_bits(gbc, 5); // skip bsid, already got it
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skip_bits(gbc, 3); // skip bitstream mode
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hdr->channel_mode = get_bits(gbc, 3);
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if(hdr->channel_mode == AC3_CHMODE_STEREO) {
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skip_bits(gbc, 2); // skip dsurmod
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} else {
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if((hdr->channel_mode & 1) && hdr->channel_mode != AC3_CHMODE_MONO)
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hdr->center_mix_level = get_bits(gbc, 2);
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if(hdr->channel_mode & 4)
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hdr->surround_mix_level = get_bits(gbc, 2);
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}
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hdr->lfe_on = get_bits1(gbc);
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hdr->sr_shift = FFMAX(hdr->bitstream_id, 8) - 8;
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hdr->sample_rate = ff_ac3_sample_rate_tab[hdr->sr_code] >> hdr->sr_shift;
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hdr->bit_rate = (ff_ac3_bitrate_tab[frame_size_code>>1] * 1000) >> hdr->sr_shift;
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hdr->channels = ff_ac3_channels_tab[hdr->channel_mode] + hdr->lfe_on;
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hdr->frame_size = ff_ac3_frame_size_tab[frame_size_code][hdr->sr_code] * 2;
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hdr->frame_type = EAC3_FRAME_TYPE_AC3_CONVERT; //EAC3_FRAME_TYPE_INDEPENDENT;
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hdr->substreamid = 0;
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} else {
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/* Enhanced AC-3 */
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hdr->crc1 = 0;
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hdr->frame_type = get_bits(gbc, 2);
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if(hdr->frame_type == EAC3_FRAME_TYPE_RESERVED)
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return AC3_PARSE_ERROR_FRAME_TYPE;
|
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|
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hdr->substreamid = get_bits(gbc, 3);
|
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|
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hdr->frame_size = (get_bits(gbc, 11) + 1) << 1;
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if(hdr->frame_size < AC3_HEADER_SIZE)
|
||||||
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return AC3_PARSE_ERROR_FRAME_SIZE;
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||||||
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|
||||||
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hdr->sr_code = get_bits(gbc, 2);
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if (hdr->sr_code == 3) {
|
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int sr_code2 = get_bits(gbc, 2);
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||||||
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if(sr_code2 == 3)
|
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return AC3_PARSE_ERROR_SAMPLE_RATE;
|
||||||
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hdr->sample_rate = ff_ac3_sample_rate_tab[sr_code2] / 2;
|
||||||
|
hdr->sr_shift = 1;
|
||||||
|
} else {
|
||||||
|
hdr->num_blocks = eac3_blocks[get_bits(gbc, 2)];
|
||||||
|
hdr->sample_rate = ff_ac3_sample_rate_tab[hdr->sr_code];
|
||||||
|
hdr->sr_shift = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
hdr->channel_mode = get_bits(gbc, 3);
|
||||||
|
hdr->lfe_on = get_bits1(gbc);
|
||||||
|
|
||||||
|
hdr->bit_rate = (uint32_t)(8.0 * hdr->frame_size * hdr->sample_rate /
|
||||||
|
(hdr->num_blocks * 256.0));
|
||||||
|
hdr->channels = ff_ac3_channels_tab[hdr->channel_mode] + hdr->lfe_on;
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
int ff_ac3_parse_header_full(GetBitContext *gbc, AC3HeaderInfo *hdr){
|
||||||
|
int ret, i;
|
||||||
|
ret = ff_ac3_parse_header(gbc, hdr);
|
||||||
|
if(!ret){
|
||||||
|
if(hdr->bitstream_id>10){
|
||||||
|
/* Enhanced AC-3 */
|
||||||
|
skip_bits(gbc, 5); // skip bitstream id
|
||||||
|
|
||||||
|
/* skip dialog normalization and compression gain */
|
||||||
|
for (i = 0; i < (hdr->channel_mode ? 1 : 2); i++) {
|
||||||
|
skip_bits(gbc, 5); // skip dialog normalization
|
||||||
|
if (get_bits1(gbc)) {
|
||||||
|
skip_bits(gbc, 8); //skip Compression gain word
|
||||||
|
}
|
||||||
|
}
|
||||||
|
/* dependent stream channel map */
|
||||||
|
if (hdr->frame_type == EAC3_FRAME_TYPE_DEPENDENT && get_bits1(gbc)) {
|
||||||
|
hdr->channel_map = get_bits(gbc, 16); //custom channel map
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
//default channel map based on acmod and lfeon
|
||||||
|
hdr->channel_map = ff_eac3_default_chmap[hdr->channel_mode];
|
||||||
|
if(hdr->lfe_on)
|
||||||
|
hdr->channel_map |= AC3_CHMAP_LFE;
|
||||||
|
}
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int ac3_sync(uint64_t state, AACAC3ParseContext *hdr_info,
|
||||||
|
int *need_next_header, int *new_frame_start)
|
||||||
|
{
|
||||||
|
int err;
|
||||||
|
uint64_t tmp = be2me_64(state);
|
||||||
|
AC3HeaderInfo hdr;
|
||||||
|
GetBitContext gbc;
|
||||||
|
|
||||||
|
init_get_bits(&gbc, ((uint8_t *)&tmp)+8-AC3_HEADER_SIZE, 54);
|
||||||
|
err = ff_ac3_parse_header(&gbc, &hdr);
|
||||||
|
|
||||||
|
if(err < 0)
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
hdr_info->sample_rate = hdr.sample_rate;
|
||||||
|
hdr_info->bit_rate = hdr.bit_rate;
|
||||||
|
hdr_info->channels = hdr.channels;
|
||||||
|
hdr_info->samples = AC3_FRAME_SIZE;
|
||||||
|
|
||||||
|
*need_next_header = (hdr.frame_type != EAC3_FRAME_TYPE_AC3_CONVERT);
|
||||||
|
*new_frame_start = (hdr.frame_type != EAC3_FRAME_TYPE_DEPENDENT);
|
||||||
|
return hdr.frame_size;
|
||||||
|
}
|
||||||
|
|
||||||
|
static av_cold int ac3_parse_init(AVCodecParserContext *s1)
|
||||||
|
{
|
||||||
|
AACAC3ParseContext *s = s1->priv_data;
|
||||||
|
s->header_size = AC3_HEADER_SIZE;
|
||||||
|
s->sync = ac3_sync;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
AVCodecParser ac3_parser = {
|
||||||
|
{ CODEC_ID_AC3 },
|
||||||
|
sizeof(AACAC3ParseContext),
|
||||||
|
ac3_parse_init,
|
||||||
|
ff_aac_ac3_parse,
|
||||||
|
ff_parse_close,
|
||||||
|
};
|
||||||
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,262 @@
|
|||||||
|
/*
|
||||||
|
* AC-3 tables
|
||||||
|
* copyright (c) 2001 Fabrice Bellard
|
||||||
|
*
|
||||||
|
* 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 ac3tab.c
|
||||||
|
* tables taken directly from the AC-3 spec.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "ac3tab.h"
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Possible frame sizes.
|
||||||
|
* from ATSC A/52 Table 5.18 Frame Size Code Table.
|
||||||
|
*/
|
||||||
|
const uint16_t ff_ac3_frame_size_tab[38][3] = {
|
||||||
|
{ 64, 69, 96 },
|
||||||
|
{ 64, 70, 96 },
|
||||||
|
{ 80, 87, 120 },
|
||||||
|
{ 80, 88, 120 },
|
||||||
|
{ 96, 104, 144 },
|
||||||
|
{ 96, 105, 144 },
|
||||||
|
{ 112, 121, 168 },
|
||||||
|
{ 112, 122, 168 },
|
||||||
|
{ 128, 139, 192 },
|
||||||
|
{ 128, 140, 192 },
|
||||||
|
{ 160, 174, 240 },
|
||||||
|
{ 160, 175, 240 },
|
||||||
|
{ 192, 208, 288 },
|
||||||
|
{ 192, 209, 288 },
|
||||||
|
{ 224, 243, 336 },
|
||||||
|
{ 224, 244, 336 },
|
||||||
|
{ 256, 278, 384 },
|
||||||
|
{ 256, 279, 384 },
|
||||||
|
{ 320, 348, 480 },
|
||||||
|
{ 320, 349, 480 },
|
||||||
|
{ 384, 417, 576 },
|
||||||
|
{ 384, 418, 576 },
|
||||||
|
{ 448, 487, 672 },
|
||||||
|
{ 448, 488, 672 },
|
||||||
|
{ 512, 557, 768 },
|
||||||
|
{ 512, 558, 768 },
|
||||||
|
{ 640, 696, 960 },
|
||||||
|
{ 640, 697, 960 },
|
||||||
|
{ 768, 835, 1152 },
|
||||||
|
{ 768, 836, 1152 },
|
||||||
|
{ 896, 975, 1344 },
|
||||||
|
{ 896, 976, 1344 },
|
||||||
|
{ 1024, 1114, 1536 },
|
||||||
|
{ 1024, 1115, 1536 },
|
||||||
|
{ 1152, 1253, 1728 },
|
||||||
|
{ 1152, 1254, 1728 },
|
||||||
|
{ 1280, 1393, 1920 },
|
||||||
|
{ 1280, 1394, 1920 },
|
||||||
|
};
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Maps audio coding mode (acmod) to number of full-bandwidth channels.
|
||||||
|
* from ATSC A/52 Table 5.8 Audio Coding Mode
|
||||||
|
*/
|
||||||
|
const uint8_t ff_ac3_channels_tab[8] = {
|
||||||
|
2, 1, 2, 3, 3, 4, 4, 5
|
||||||
|
};
|
||||||
|
|
||||||
|
/* possible frequencies */
|
||||||
|
const uint16_t ff_ac3_sample_rate_tab[3] = { 48000, 44100, 32000 };
|
||||||
|
|
||||||
|
/* possible bitrates */
|
||||||
|
const uint16_t ff_ac3_bitrate_tab[19] = {
|
||||||
|
32, 40, 48, 56, 64, 80, 96, 112, 128,
|
||||||
|
160, 192, 224, 256, 320, 384, 448, 512, 576, 640
|
||||||
|
};
|
||||||
|
|
||||||
|
/* AC-3 MDCT window */
|
||||||
|
|
||||||
|
/* MDCT window */
|
||||||
|
const int16_t ff_ac3_window[256] = {
|
||||||
|
4, 7, 12, 16, 21, 28, 34, 42,
|
||||||
|
51, 61, 72, 84, 97, 111, 127, 145,
|
||||||
|
164, 184, 207, 231, 257, 285, 315, 347,
|
||||||
|
382, 419, 458, 500, 544, 591, 641, 694,
|
||||||
|
750, 810, 872, 937, 1007, 1079, 1155, 1235,
|
||||||
|
1318, 1406, 1497, 1593, 1692, 1796, 1903, 2016,
|
||||||
|
2132, 2253, 2379, 2509, 2644, 2783, 2927, 3076,
|
||||||
|
3230, 3389, 3552, 3721, 3894, 4072, 4255, 4444,
|
||||||
|
4637, 4835, 5038, 5246, 5459, 5677, 5899, 6127,
|
||||||
|
6359, 6596, 6837, 7083, 7334, 7589, 7848, 8112,
|
||||||
|
8380, 8652, 8927, 9207, 9491, 9778,10069,10363,
|
||||||
|
10660,10960,11264,11570,11879,12190,12504,12820,
|
||||||
|
13138,13458,13780,14103,14427,14753,15079,15407,
|
||||||
|
15735,16063,16392,16720,17049,17377,17705,18032,
|
||||||
|
18358,18683,19007,19330,19651,19970,20287,20602,
|
||||||
|
20914,21225,21532,21837,22139,22438,22733,23025,
|
||||||
|
23314,23599,23880,24157,24430,24699,24964,25225,
|
||||||
|
25481,25732,25979,26221,26459,26691,26919,27142,
|
||||||
|
27359,27572,27780,27983,28180,28373,28560,28742,
|
||||||
|
28919,29091,29258,29420,29577,29729,29876,30018,
|
||||||
|
30155,30288,30415,30538,30657,30771,30880,30985,
|
||||||
|
31086,31182,31274,31363,31447,31528,31605,31678,
|
||||||
|
31747,31814,31877,31936,31993,32046,32097,32145,
|
||||||
|
32190,32232,32272,32310,32345,32378,32409,32438,
|
||||||
|
32465,32490,32513,32535,32556,32574,32592,32608,
|
||||||
|
32623,32636,32649,32661,32671,32681,32690,32698,
|
||||||
|
32705,32712,32718,32724,32729,32733,32737,32741,
|
||||||
|
32744,32747,32750,32752,32754,32756,32757,32759,
|
||||||
|
32760,32761,32762,32763,32764,32764,32765,32765,
|
||||||
|
32766,32766,32766,32766,32767,32767,32767,32767,
|
||||||
|
32767,32767,32767,32767,32767,32767,32767,32767,
|
||||||
|
32767,32767,32767,32767,32767,32767,32767,32767,
|
||||||
|
};
|
||||||
|
|
||||||
|
const uint8_t ff_ac3_log_add_tab[260]= {
|
||||||
|
0x40,0x3f,0x3e,0x3d,0x3c,0x3b,0x3a,0x39,0x38,0x37,
|
||||||
|
0x36,0x35,0x34,0x34,0x33,0x32,0x31,0x30,0x2f,0x2f,
|
||||||
|
0x2e,0x2d,0x2c,0x2c,0x2b,0x2a,0x29,0x29,0x28,0x27,
|
||||||
|
0x26,0x26,0x25,0x24,0x24,0x23,0x23,0x22,0x21,0x21,
|
||||||
|
0x20,0x20,0x1f,0x1e,0x1e,0x1d,0x1d,0x1c,0x1c,0x1b,
|
||||||
|
0x1b,0x1a,0x1a,0x19,0x19,0x18,0x18,0x17,0x17,0x16,
|
||||||
|
0x16,0x15,0x15,0x15,0x14,0x14,0x13,0x13,0x13,0x12,
|
||||||
|
0x12,0x12,0x11,0x11,0x11,0x10,0x10,0x10,0x0f,0x0f,
|
||||||
|
0x0f,0x0e,0x0e,0x0e,0x0d,0x0d,0x0d,0x0d,0x0c,0x0c,
|
||||||
|
0x0c,0x0c,0x0b,0x0b,0x0b,0x0b,0x0a,0x0a,0x0a,0x0a,
|
||||||
|
0x0a,0x09,0x09,0x09,0x09,0x09,0x08,0x08,0x08,0x08,
|
||||||
|
0x08,0x08,0x07,0x07,0x07,0x07,0x07,0x07,0x06,0x06,
|
||||||
|
0x06,0x06,0x06,0x06,0x06,0x06,0x05,0x05,0x05,0x05,
|
||||||
|
0x05,0x05,0x05,0x05,0x04,0x04,0x04,0x04,0x04,0x04,
|
||||||
|
0x04,0x04,0x04,0x04,0x04,0x03,0x03,0x03,0x03,0x03,
|
||||||
|
0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x02,
|
||||||
|
0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,
|
||||||
|
0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x01,0x01,
|
||||||
|
0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,
|
||||||
|
0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,
|
||||||
|
0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,
|
||||||
|
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||||
|
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||||
|
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||||
|
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||||
|
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||||
|
};
|
||||||
|
|
||||||
|
const uint16_t ff_ac3_hearing_threshold_tab[50][3]= {
|
||||||
|
{ 0x04d0,0x04f0,0x0580 },
|
||||||
|
{ 0x04d0,0x04f0,0x0580 },
|
||||||
|
{ 0x0440,0x0460,0x04b0 },
|
||||||
|
{ 0x0400,0x0410,0x0450 },
|
||||||
|
{ 0x03e0,0x03e0,0x0420 },
|
||||||
|
{ 0x03c0,0x03d0,0x03f0 },
|
||||||
|
{ 0x03b0,0x03c0,0x03e0 },
|
||||||
|
{ 0x03b0,0x03b0,0x03d0 },
|
||||||
|
{ 0x03a0,0x03b0,0x03c0 },
|
||||||
|
{ 0x03a0,0x03a0,0x03b0 },
|
||||||
|
{ 0x03a0,0x03a0,0x03b0 },
|
||||||
|
{ 0x03a0,0x03a0,0x03b0 },
|
||||||
|
{ 0x03a0,0x03a0,0x03a0 },
|
||||||
|
{ 0x0390,0x03a0,0x03a0 },
|
||||||
|
{ 0x0390,0x0390,0x03a0 },
|
||||||
|
{ 0x0390,0x0390,0x03a0 },
|
||||||
|
{ 0x0380,0x0390,0x03a0 },
|
||||||
|
{ 0x0380,0x0380,0x03a0 },
|
||||||
|
{ 0x0370,0x0380,0x03a0 },
|
||||||
|
{ 0x0370,0x0380,0x03a0 },
|
||||||
|
{ 0x0360,0x0370,0x0390 },
|
||||||
|
{ 0x0360,0x0370,0x0390 },
|
||||||
|
{ 0x0350,0x0360,0x0390 },
|
||||||
|
{ 0x0350,0x0360,0x0390 },
|
||||||
|
{ 0x0340,0x0350,0x0380 },
|
||||||
|
{ 0x0340,0x0350,0x0380 },
|
||||||
|
{ 0x0330,0x0340,0x0380 },
|
||||||
|
{ 0x0320,0x0340,0x0370 },
|
||||||
|
{ 0x0310,0x0320,0x0360 },
|
||||||
|
{ 0x0300,0x0310,0x0350 },
|
||||||
|
{ 0x02f0,0x0300,0x0340 },
|
||||||
|
{ 0x02f0,0x02f0,0x0330 },
|
||||||
|
{ 0x02f0,0x02f0,0x0320 },
|
||||||
|
{ 0x02f0,0x02f0,0x0310 },
|
||||||
|
{ 0x0300,0x02f0,0x0300 },
|
||||||
|
{ 0x0310,0x0300,0x02f0 },
|
||||||
|
{ 0x0340,0x0320,0x02f0 },
|
||||||
|
{ 0x0390,0x0350,0x02f0 },
|
||||||
|
{ 0x03e0,0x0390,0x0300 },
|
||||||
|
{ 0x0420,0x03e0,0x0310 },
|
||||||
|
{ 0x0460,0x0420,0x0330 },
|
||||||
|
{ 0x0490,0x0450,0x0350 },
|
||||||
|
{ 0x04a0,0x04a0,0x03c0 },
|
||||||
|
{ 0x0460,0x0490,0x0410 },
|
||||||
|
{ 0x0440,0x0460,0x0470 },
|
||||||
|
{ 0x0440,0x0440,0x04a0 },
|
||||||
|
{ 0x0520,0x0480,0x0460 },
|
||||||
|
{ 0x0800,0x0630,0x0440 },
|
||||||
|
{ 0x0840,0x0840,0x0450 },
|
||||||
|
{ 0x0840,0x0840,0x04e0 },
|
||||||
|
};
|
||||||
|
|
||||||
|
const uint8_t ff_ac3_bap_tab[64]= {
|
||||||
|
0, 1, 1, 1, 1, 1, 2, 2, 3, 3,
|
||||||
|
3, 4, 4, 5, 5, 6, 6, 6, 6, 7,
|
||||||
|
7, 7, 7, 8, 8, 8, 8, 9, 9, 9,
|
||||||
|
9, 10, 10, 10, 10, 11, 11, 11, 11, 12,
|
||||||
|
12, 12, 12, 13, 13, 13, 13, 14, 14, 14,
|
||||||
|
14, 14, 14, 14, 14, 15, 15, 15, 15, 15,
|
||||||
|
15, 15, 15, 15,
|
||||||
|
};
|
||||||
|
|
||||||
|
const uint8_t ff_ac3_slow_decay_tab[4]={
|
||||||
|
0x0f, 0x11, 0x13, 0x15,
|
||||||
|
};
|
||||||
|
|
||||||
|
const uint8_t ff_ac3_fast_decay_tab[4]={
|
||||||
|
0x3f, 0x53, 0x67, 0x7b,
|
||||||
|
};
|
||||||
|
|
||||||
|
const uint16_t ff_ac3_slow_gain_tab[4]= {
|
||||||
|
0x540, 0x4d8, 0x478, 0x410,
|
||||||
|
};
|
||||||
|
|
||||||
|
const uint16_t ff_ac3_db_per_bit_tab[4]= {
|
||||||
|
0x000, 0x700, 0x900, 0xb00,
|
||||||
|
};
|
||||||
|
|
||||||
|
const int16_t ff_ac3_floor_tab[8]= {
|
||||||
|
0x2f0, 0x2b0, 0x270, 0x230, 0x1f0, 0x170, 0x0f0, 0xf800,
|
||||||
|
};
|
||||||
|
|
||||||
|
const uint16_t ff_ac3_fast_gain_tab[8]= {
|
||||||
|
0x080, 0x100, 0x180, 0x200, 0x280, 0x300, 0x380, 0x400,
|
||||||
|
};
|
||||||
|
|
||||||
|
const uint8_t ff_ac3_critical_band_size_tab[50]={
|
||||||
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||||||
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 3, 3, 3, 3, 3,
|
||||||
|
3, 6, 6, 6, 6, 6, 6, 12, 12, 12, 12, 24, 24, 24, 24, 24
|
||||||
|
};
|
||||||
|
/**
|
||||||
|
* Default channel map for a dependent substream defined by acmod
|
||||||
|
*/
|
||||||
|
const uint16_t ff_eac3_default_chmap[8] = {
|
||||||
|
AC3_CHMAP_L | AC3_CHMAP_R, // FIXME Ch1+Ch2
|
||||||
|
AC3_CHMAP_C,
|
||||||
|
AC3_CHMAP_L | AC3_CHMAP_R,
|
||||||
|
AC3_CHMAP_L | AC3_CHMAP_C | AC3_CHMAP_R,
|
||||||
|
AC3_CHMAP_L | AC3_CHMAP_R | AC3_CHMAP_C_SUR,
|
||||||
|
AC3_CHMAP_L | AC3_CHMAP_C | AC3_CHMAP_R | AC3_CHMAP_C_SUR,
|
||||||
|
AC3_CHMAP_L | AC3_CHMAP_R | AC3_CHMAP_L_SUR | AC3_CHMAP_R_SUR,
|
||||||
|
AC3_CHMAP_L | AC3_CHMAP_C | AC3_CHMAP_R | AC3_CHMAP_L_SUR | AC3_CHMAP_R_SUR
|
||||||
|
};
|
||||||
Reference in New Issue
Block a user