diff options
Diffstat (limited to 'src/libffmpeg/libavcodec/mpegaudiotab.h')
-rw-r--r-- | src/libffmpeg/libavcodec/mpegaudiotab.h | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/src/libffmpeg/libavcodec/mpegaudiotab.h b/src/libffmpeg/libavcodec/mpegaudiotab.h deleted file mode 100644 index 8fb37ddff..000000000 --- a/src/libffmpeg/libavcodec/mpegaudiotab.h +++ /dev/null @@ -1,111 +0,0 @@ -/* - * mpeg audio layer 2 tables. Most of them come from the mpeg audio - * specification. - * - * Copyright (c) 2000, 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 mpegaudiotab.h - * mpeg audio layer 2 tables. - * Most of them come from the mpeg audio specification. - */ - -#define SQRT2 1.41421356237309514547 - -static const int costab32[30] = { - FIX(0.54119610014619701222), - FIX(1.3065629648763763537), - - FIX(0.50979557910415917998), - FIX(2.5629154477415054814), - FIX(0.89997622313641556513), - FIX(0.60134488693504528634), - - FIX(0.5024192861881556782), - FIX(5.1011486186891552563), - FIX(0.78815462345125020249), - FIX(0.64682178335999007679), - FIX(0.56694403481635768927), - FIX(1.0606776859903470633), - FIX(1.7224470982383341955), - FIX(0.52249861493968885462), - - FIX(10.19000812354803287), - FIX(0.674808341455005678), - FIX(1.1694399334328846596), - FIX(0.53104259108978413284), - FIX(2.0577810099534108446), - FIX(0.58293496820613388554), - FIX(0.83934964541552681272), - FIX(0.50547095989754364798), - FIX(3.4076084184687189804), - FIX(0.62250412303566482475), - FIX(0.97256823786196078263), - FIX(0.51544730992262455249), - FIX(1.4841646163141661852), - FIX(0.5531038960344445421), - FIX(0.74453627100229857749), - FIX(0.5006029982351962726), -}; - -static const int bitinv32[32] = { - 0, 16, 8, 24, 4, 20, 12, 28, - 2, 18, 10, 26, 6, 22, 14, 30, - 1, 17, 9, 25, 5, 21, 13, 29, - 3, 19, 11, 27, 7, 23, 15, 31 -}; - - -static int16_t filter_bank[512]; - -static int scale_factor_table[64]; -#ifdef USE_FLOATS -static float scale_factor_inv_table[64]; -#else -static int8_t scale_factor_shift[64]; -static unsigned short scale_factor_mult[64]; -#endif -static unsigned char scale_diff_table[128]; - -/* total number of bits per allocation group */ -static unsigned short total_quant_bits[17]; - -/* signal to noise ratio of each quantification step (could be - computed from quant_steps[]). The values are dB multiplied by 10 -*/ -static const unsigned short quant_snr[17] = { - 70, 110, 160, 208, - 253, 316, 378, 439, - 499, 559, 620, 680, - 740, 800, 861, 920, - 980 -}; - -/* fixed psycho acoustic model. Values of SNR taken from the 'toolame' - project */ -static const float fixed_smr[SBLIMIT] = { - 30, 17, 16, 10, 3, 12, 8, 2.5, - 5, 5, 6, 6, 5, 6, 10, 6, - -4, -10, -21, -30, -42, -55, -68, -75, - -75, -75, -75, -75, -91, -107, -110, -108 -}; - -static const unsigned char nb_scale_factors[4] = { 3, 2, 1, 2 }; - |